chore(display/keyboardInput): follow new docs [untested]

log some things only in dev mode

.github/workflows/build.yml

@@ -2,16 +2,24 @@ name: Build
 
 on:
   push:
-    paths:
+    paths-ignore:
-      - go.mod
+      - "**/*.md"
-      - go.sum
+      - "**/*.yml"
-      - "**/*.go"
+      - "**/*.sh"
-      - "**/*.tmpl"
   workflow_dispatch:
 
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        block:
+          - control
+          - display
+    defaults:
+      run:
+        working-directory: ${{ matrix.block }}
     steps:
       - name: Checkout Repository
         uses: actions/checkout@v4
@@ -20,21 +28,25 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: "^1.24"
-          cache-dependency-path: display/go.sum
+          cache-dependency-path: go.sum
+
+      - name: Setup Deno
+        uses: denoland/setup-deno@v2
+        if: matrix.block == 'control'
+        with:
+          deno-version: v2.x
 
       - name: Install Dependencies
-        working-directory: display
         run: go mod download
 
-      - name: Generate Templates
+      - name: Generate
-        working-directory: display
+        run: go generate ./...
-        run: go tool templ generate
 
       - name: Build
-        working-directory: display
+        run: go build -o plg-mudics-${{ matrix.block }} .
-        run: go build -o plg-mudics-display .
 
       - name: Upload Artifact
         uses: actions/upload-artifact@v4
         with:
-          path: display/plg-mudics-display
+          name: plg-mudics-${{ matrix.block }}
+          path: ${{matrix.block}}/plg-mudics-${{ matrix.block }}

.github/workflows/release.yml

@@ -10,14 +10,64 @@ permissions:
 
 jobs:
   release:
+    name: Create Release
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Zip NixOS Config
+        run: zip -rj nixos.zip nixos/
+
       - name: Release
         uses: softprops/action-gh-release@v2
         with:
           name: PLG-MuDiCS ${{ github.ref_name }}
           body_path: CHANGELOG.md
+          files: nixos.zip
+
+  build:
+    name: Build and Upload Assets
+    needs: release
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        block:
+          - control
+          - display
+    defaults:
+      run:
+        working-directory: ${{ matrix.block }}
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v4
+
+      - name: Setup Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "^1.24"
+          cache-dependency-path: go.sum
+
+      - name: Setup Deno
+        uses: denoland/setup-deno@v2
+        if: matrix.block == 'control'
+        with:
+          deno-version: v2.x
+
+      - name: Install Dependencies
+        run: go mod download
+
+      - name: Generate
+        run: go generate ./...
+
+      - name: Build
+        run: go build -o plg-mudics-${{ matrix.block }} .
+
+      - name: Upload Release Assets
+        uses: svenstaro/upload-release-action@v2
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ matrix.block }}/plg-mudics-${{ matrix.block }}
+          tag: ${{ github.ref_name }}

.vscode/extensions.json

@@ -0,0 +1,10 @@
+{
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "golang.go",
+    "esbenp.prettier-vscode",
+    "svelte.svelte-vscode",
+    "a-h.templ",
+    "bradlc.vscode-tailwindcss"
+  ]
+}

CONTRIBUTING.md

@@ -0,0 +1,34 @@
+# Contributing
+
+## Development
+
+### Architecture
+
+The software suite comprises two main components that are designed to work together on the same network.
+The _Display Block_ is responsible for displaying content on a monitor.
+The _Control Block_ controls multiple Display Blocks via a user interface. One Display Block can be controlled by multiple Control Blocks.
+
+- `control/`: Go code for the Control Block.
+  - `frontend/`: The actual frontend written in SvelteKit.
+- `display/`: Go code for the Display Block.
+- `nixos/`: NixOS configuration for a self-updating, ready-to-use Linux system for the Display Block. This is not necessary for using PLG-MuDiCS.
+- `shared/`: Shared code and assets for the Control and Display Block.
+
+### Technologies
+
+- **Go** for the base code in both the Control and Display Block.
+- **SvelteKit** in prerender mode for the frontend of the Control Block.
+- **TailwindCSS** for styling the frontend of the Control Block.
+- **Chromium** browser for handling most media display in the Display Block and serving the frontend of the Control Block.
+- **LibreOffice** for handling more complex documents in the Display Block.
+
+### Requirements
+
+- Go v1.25 or higher
+- Deno v2
+
+### Running
+
+1. open the wanted folder of the block inside a terminal
+2. run `go generate ./..` to generate files required at build time
+3. run `go run *.go` to compile and run the block

LICENSE.txt

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
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+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -1 +1,20 @@
-# PLG-MuDICS
+# PLG-MuDiCS
+
+![Lines of Code](https://tokei.rs/b1/github/PLG-Development/PLG-MuDiCS?category=code)
+
+Open source solution for advanced remote control and coordination of one or more presentation displays. Specially optimized for fast operation in highly dynamic multi-display situations.
+
+## Display Requirements
+
+- Linux
+- Bash
+- Chromium
+- LibreOffice (optional, presentation view)
+- Xreader (optional, pdf view)
+- ImageMagick (optional, image preview)
+- ffmpeg (optional, video preview)
+- Ghostscript (optional, pdf preview)
+
+## Contributing
+
+See [Contributing.md](/CONTRIBUTING.md)

control/README.md

@@ -1,3 +0,0 @@
-# PLG-MuDICS Control
-
-## Development

control/frontend/.gitignore

@@ -21,3 +21,6 @@ Thumbs.db
 # Vite
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
+
+# test
+test-results/

control/frontend/deno.json

@@ -0,0 +1,3 @@
+{
+	"minimumDependencyAge": "P7D"
+}

control/frontend/e2e/basic.test.ts

@@ -0,0 +1,39 @@
+import { expect, test } from '@playwright/test';
+
+test('page loads', async ({ page }) => {
+	await page.goto('/');
+	await expect(page.getByText('PLG MuDiCS')).toBeVisible();
+});
+
+test('page loads without problems', async ({ page }) => {
+	await page.goto('/');
+	await expect(page.getByText('PLG MuDiCS')).toBeVisible();
+	await expect(page.getByTestId('notification')).not.toBeVisible();
+});
+
+test('diplay click shows files', async ({ page }) => {
+	await page.goto('/');
+	await page.getByTestId('display').click();
+	await expect(page.getByTestId('inode').first()).toBeVisible();
+});
+
+test('show text', async ({ page }) => {
+	await page.goto('/');
+	await page.getByTestId('display').click();
+
+	const controlButton = page.getByText('Text anzeigen');
+	await expect(controlButton).toBeVisible();
+	await controlButton.click();
+
+	const textPopup = page.getByTestId('text-popup');
+	await expect(textPopup).toBeVisible();
+	const textArea = textPopup.getByRole('textbox');
+	await expect(textArea).toBeVisible();
+	await textArea.fill('Hello, world!');
+
+	const submitButton = textPopup.locator('button').filter({ hasText: 'Text anzeigen' });
+	await submitButton.click();
+	await expect(
+		page.locator('[data-testid="notification"]:not(:has-text("Fehler 500"))')
+	).not.toBeVisible();
+});

control/frontend/embed.go

@@ -5,7 +5,9 @@ import (
 	"io/fs"
 )
 
+//go:generate deno install
 //go:generate deno task build
+
 //go:embed all:build
 var buildDir embed.FS
 

control/frontend/package.json

@@ -11,25 +11,29 @@
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"lint": "eslint . && prettier --check .",
-		"format": "prettier --write ."
+		"format": "prettier --write .",
+		"test:e2e": "playwright test",
+		"test": "deno task test:e2e"
 	},
 	"devDependencies": {
 		"@eslint/compat": "^1.2.5",
 		"@eslint/js": "^9.18.0",
+		"@playwright/test": "1.56.1",
 		"@sveltejs/adapter-auto": "^6.0.0",
 		"@sveltejs/adapter-static": "^3.0.9",
 		"@sveltejs/kit": "^2.22.0",
 		"@sveltejs/vite-plugin-svelte": "^6.0.0",
-		"@tailwindcss/typography": "^0.5.15",
 		"@tailwindcss/vite": "^4.0.0",
+		"@tiptap/extension-placeholder": "^3.11.0",
 		"eslint": "^9.18.0",
 		"eslint-config-prettier": "^10.0.1",
 		"eslint-plugin-svelte": "^3.0.0",
 		"globals": "^16.0.0",
 		"prettier": "^3.4.2",
 		"prettier-plugin-svelte": "^3.3.3",
+		"sass-embedded": "^1.93.3",
 		"svelte": "^5.0.0",
-		"svelte-check": "^4.0.0",
+		"svelte-check": "^4.3.5",
 		"svelte-dnd-action": "^0.9.65",
 		"tailwindcss": "^4.0.0",
 		"typescript": "^5.0.0",
@@ -38,6 +42,14 @@
 	},
 	"dependencies": {
 		"@thisux/sveltednd": "^0.0.20",
-		"lucide-svelte": "^0.545.0"
+		"@tiptap/core": "^3.11.0",
+		"@tiptap/extension-highlight": "^3.11.0",
+		"@tiptap/extension-text-style": "^3.11.0",
+		"@tiptap/extensions": "^3.11.0",
+		"@tiptap/pm": "^3.11.0",
+		"@tiptap/starter-kit": "^3.11.0",
+		"dexie": "^4.2.1",
+		"lucide-svelte": "^0.545.0",
+		"svelte-splitpanes": "^8.0.9"
 	}
 }

control/frontend/playwright.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from '@playwright/test';
+
+export default defineConfig({
+	fullyParallel: true,
+	webServer: {
+		command: 'deno task build && deno task preview',
+		port: 4173
+	},
+	testDir: 'e2e'
+});

control/frontend/src/app.css

@@ -1,15 +1,89 @@
 @import 'tailwindcss';
-@plugin '@tailwindcss/typography';
-
 
 /* Adding more color steps */
 @theme {
-    --color-stone-150: oklch(0.9465 0.002 77.571);
+	--color-stone-150: oklch(0.9465 0.002 77.571);
-    --color-stone-250: oklch(0.896 0.004 52.542);
+	--color-stone-250: oklch(0.896 0.004 52.542);
-    --color-stone-350: oklch(0.789 0.0075 56.313);
+	--color-stone-350: oklch(0.789 0.0075 56.313);
-    --color-stone-450: oklch(0.631 0.0115 57.165);
+	--color-stone-450: oklch(0.631 0.0115 57.165);
-    --color-stone-550: oklch(0.4985 0.012 65.855);
+	--color-stone-550: oklch(0.4985 0.012 65.855);
-    --color-stone-650: oklch(0.409 0.0105 70.599);
+	--color-stone-650: oklch(0.409 0.0105 70.599);
-    --color-stone-750: oklch(0.321 0.0085 50.928);
+	--color-stone-750: oklch(0.321 0.0085 50.928);
-    --color-stone-850: oklch(0.242 0.0065 45.171);
+	--color-stone-850: oklch(0.242 0.0065 45.171);
+}
+
+.button {
+	&.space {
+		@apply px-4;
+	}
+
+	&.error {
+		@apply text-red-400 hover:text-stone-100;
+
+		&:hover {
+			@apply bg-red-400;
+		}
+	}
+}
+
+main {
+	scrollbar-width: thin;
+	scrollbar-color: var(--color-stone-300) transparent;
+}
+
+/* Splitpanes */
+.splitpanes.mudics-stone-theme {
+	.splitpanes__pane {
+		@apply bg-stone-900;
+	}
+
+	.splitpanes__splitter {
+		@apply bg-transparent hover:bg-stone-700 active:bg-stone-600 transition-colors duration-200 shrink-0 relative box-border rounded mx-5;
+		/* box-sizing: border-box;
+        position: relative;
+        flex-shrink: 0; */
+
+		&:before,
+		&:after {
+			@apply bg-stone-750 transition-colors duration-200 absolute top-[50%] left-[50%] content-[''] rounded;
+		}
+
+		&:hover:before,
+		&:hover:after {
+			@apply bg-stone-400;
+		}
+
+		&:active:before,
+		&:active:after {
+			@apply bg-stone-300;
+		}
+
+		&:first-child {
+			/* cursor: auto; */
+		}
+	}
+}
+
+.mudics-stone-theme {
+	&.splitpanes .splitpanes .splitpanes__splitter {
+		@apply z-10;
+	}
+
+	&.splitpanes--horizontal > .splitpanes__splitter,
+	.splitpanes--horizontal > .splitpanes__splitter {
+		@apply h-2 cursor-row-resize;
+
+		&:before,
+		&:after {
+			@apply h-0.5 w-10 translate-x-[-50%];
+		}
+
+		&:before {
+			@apply mt-[calc(-0.7*var(--spacing))];
+		}
+
+		&:after {
+			@apply mt-[calc(0.1*var(--spacing))];
+		}
+	}
 }

control/frontend/src/components/ControlView.svelte

@@ -1,53 +0,0 @@
-<script lang="ts">
-	import { ArrowBigLeft, ArrowBigRight, ChevronDown, Keyboard, Power, PowerOff, Presentation, SquareTerminal, TextAlignStart, TrafficCone } from "lucide-svelte";
-	import { selected_display_ids } from "../ts/stores/select";
-	import Button from "./Button.svelte";
-
-    
-</script>
-
-<div class="grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl min-w-0">
-	<div class="text-xl font-bold pl-3 content-center bg-stone-700 rounded-t-2xl truncate min-w-0">
-		{'Bildschirme steuern (' + $selected_display_ids.length + ' ausgewählt)'}
-	</div>
-	<div class="flex flex-col gap-2 p-2 overflow-auto">
-		<div class="flex flex-row justify-between gap-2">
-			<div class="flex flex-col gap-2">
-				<div class="flex flex-row gap-2 w-70 justify-normal">
-					<Button title="Vorherige Folie (Pfeil nach Links)" className="px-7"
-						><ArrowBigLeft /></Button
-					>
-					<Button title="Nächste Folie (Pfeil nach Rechts)" className="px-7"
-						><ArrowBigRight /></Button
-					>
-				</div>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"
-					><TextAlignStart /> Text anzeigen</Button
-				>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"><Presentation />Blackout</Button>
-				<div class="flex flex-row justify-normal">
-					<Button className="rounded-r-none pl-3 flex gap-3 grow w-60 justify-normal"
-						><TrafficCone /> Fallback-Bild anzeigen</Button
-					>
-					<Button className="rounded-l-none flex grow-0 w-10"><ChevronDown /></Button>
-				</div>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"
-					><Keyboard /> Tastatur-Inputs durchgeben</Button
-				>
-			</div>
-			<div class="flex flex-col gap-2 justify-between">
-				<div class="flex flex-col gap-2">
-					<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-						><Power /> PC hochfahren</Button
-					>
-					<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-						><PowerOff /> PC herunterfahren</Button
-					>
-				</div>
-				<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-					><SquareTerminal /> Shell-Befehl ausführen</Button
-				>
-			</div>
-		</div>
-	</div>
-</div>

control/frontend/src/components/DisplayGroupObject.svelte

@@ -1,110 +0,0 @@
-<script lang="ts">
-	import { dragHandleZone, TRIGGERS } from 'svelte-dnd-action';
-	import { dnd_flip_duration_ms, get_selectable_color_classes, is_display_drag, is_group_drag } from '../ts/stores/ui_behavior';
-	import { cubicOut } from 'svelte/easing';
-	import { flip } from 'svelte/animate';
-	import DisplayObject from './DisplayObject.svelte';
-	import {
-		add_empty_display_group,
-		all_displays_of_group_selected,
-		remove_empty_display_groups,
-		select_all_of_group,
-		set_new_display_group_data
-	} from '../ts/stores/displays';
-	import DNDGrip from './DNDGrip.svelte';
-	import { fade } from 'svelte/transition';
-	import type { DisplayGroup } from '../ts/types';
-	import { selected_display_ids } from '../ts/stores/select';
-
-	let { display_group } = $props<{
-		display_group: DisplayGroup;
-	}>();
-
-	let hovering_selectable = $state(false);
-
-	function select_all_of_this_group() {
-		const new_value = !all_displays_of_group_selected(display_group, $selected_display_ids);
-		select_all_of_group(display_group, new_value);
-	}
-
-	function handle_consider(e: CustomEvent) {
-		const { items, info } = e.detail;
-
-		if (items.length !== 1 && info.trigger === TRIGGERS.DRAG_STARTED) {
-      $is_display_drag = true;
-			add_empty_display_group();
-		}
-		set_new_display_group_data(display_group.id, items);
-	}
-
-	function handle_finalize(e: CustomEvent) {
-		remove_empty_display_groups();
-    $is_display_drag = false;
-		set_new_display_group_data(display_group.id, e.detail.items);
-	}
-</script>
-
-<div
-	transition:fade={{ duration: 100 }}
-	class="{get_selectable_color_classes(
-		all_displays_of_group_selected(display_group, $selected_display_ids),
-		{
-			bg: true,
-			hover: hovering_selectable,
-			active: hovering_selectable,
-			text: true
-		},
-		-150,
-		-50
-	)} transition-colors duration-200 rounded-2xl flex flex-row cursor-pointer"
->
-	<div
-		class="flex flex-col min-w-0 pl-2 py-2 gap-2 w-full"
-		use:dragHandleZone={{
-			items: display_group.data,
-			type: 'item',
-			flipDurationMs: dnd_flip_duration_ms,
-			dropTargetStyle: { outline: 'none' },
-		}}
-		onconsider={handle_consider}
-		onfinalize={handle_finalize}
-	>
-		{#each display_group.data as display (display.id)}
-			<!-- Each Group -->
-			<section
-				animate:flip={{ duration: $is_group_drag ? 0 : dnd_flip_duration_ms, easing: cubicOut }}
-				class="outline-none"
-				role="figure"
-			>
-				<DisplayObject {display} />
-			</section>
-		{/each}
-
-		{#if display_group.data.length === 0}
-			<div class="min-h-10 h-full w-full pl-2 py-2 flex justify-center items-center">
-				Hier in leere neue Gruppe ablegen
-			</div>
-		{/if}
-	</div>
-	<div
-		class="flex items-center justify-center px-2"
-		onclick={(e) => select_all_of_this_group()}
-		role="button"
-		tabindex="0"
-		onkeydown={(e) => {
-			if (e.key === 'Enter' || e.key === ' ') select_all_of_this_group();
-		}}
-		onmouseenter={() => (hovering_selectable = true)}
-		onmouseleave={() => (hovering_selectable = false)}
-	>
-		<DNDGrip
-			bg={get_selectable_color_classes(
-				all_displays_of_group_selected(display_group, $selected_display_ids),
-				{
-					bg: true
-				},
-				-150
-			)}
-		/>
-	</div>
-</div>

control/frontend/src/components/DisplayView.svelte

@@ -1,218 +0,0 @@
-<script lang="ts">
-	import { fade, scale, slide } from 'svelte/transition';
-	import {
-		all_displays_of_group_selected,
-		displays,
-		get_display_by_id,
-		select_all_of_group
-	} from '../ts/stores/displays';
-	import {
-		change_height,
-		current_height,
-		dnd_flip_duration_ms,
-		get_selectable_color_classes,
-		is_display_drag,
-		is_group_drag,
-		next_height_step_size,
-		pinned_display_id
-	} from '../ts/stores/ui_behavior';
-	import { type Display, type DisplayGroup } from '../ts/types';
-	import Button from './Button.svelte';
-	import OnlineState from './OnlineState.svelte';
-	import { cubicOut } from 'svelte/easing';
-	import { Menu, Minus, Pencil, PinOff, Plus, Trash2, VideoOff } from 'lucide-svelte';
-	import { selected_display_ids } from '../ts/stores/select';
-	import { dragHandleZone } from 'svelte-dnd-action';
-	import { flip } from 'svelte/animate';
-	import DisplayGroupObject from './DisplayGroupObject.svelte';
-
-	let displays_scroll_box: HTMLElement;
-	let pinned_display: Display | null = $derived(get_display_by_id($pinned_display_id || '', $displays));
-
-	function select_all(current_displays: DisplayGroup[], current_selected_display_ids: string[]) {
-		const new_value = !all_selected(current_displays, current_selected_display_ids);
-		for (const display_group of current_displays) {
-			select_all_of_group(display_group, new_value);
-		}
-	}
-
-	function all_selected(current_displays: DisplayGroup[], current_selected_display_ids: string[]) {
-		for (const display_group of current_displays) {
-			if (!all_displays_of_group_selected(display_group, current_selected_display_ids)) {
-				return false;
-			}
-		}
-		return true;
-	}
-
-	function on_wheel(e: WheelEvent) {
-		if (!$is_group_drag && !$is_display_drag) return;
-		if (!displays_scroll_box) return;
-
-		// apply custom scroll feature
-		e.preventDefault();
-		(displays_scroll_box as HTMLElement).scrollBy?.({
-			top: e.deltaY,
-			behavior: 'auto'
-		});
-	}
-</script>
-
-<svelte:window on:wheel={on_wheel} />
-
-<div class="h-[calc(100dvh-3rem-(6*var(--spacing)))] flex flex-col gap-2">
-	{#if $pinned_display_id}
-		<!-- Pinned Item -->
-		<div in:fade={{ duration: 140 }} out:fade={{ duration: 120 }}>
-			<div
-				class="grid grid-rows-[2.5rem_auto] will-change-[height,opacity] overflow-hidden rounded-2xl"
-				transition:slide={{ duration: 260, easing: cubicOut }}
-			>
-				<div class="bg-stone-700 flex justify-between w-full p-1 min-w-0 basis-0 flex-1">
-					<span
-						class="text-xl font-bold pl-2 content-center truncate min-w-0"
-						title={pinned_display?.name}
-					>
-						{pinned_display?.name}
-					</span>
-					<div class="flex flex-row gap-1">
-						<OnlineState
-							selected={false}
-							status={pinned_display?.status ?? ''}
-							className="flex items-center px-2"
-						/>
-						<Button
-							className="aspect-square !p-1"
-							bg="bg-stone-600"
-							click_function={(e) => {
-								e.stopPropagation();
-							}}
-							menu_options={[
-								{
-									icon: Pencil,
-									name: 'Bildschirm bearbeiten'
-								},
-								{
-									icon: Trash2,
-									name: 'Bildschirm löschen',
-									class: 'text-red-400 hover:text-stone-200 hover:!bg-red-400 active:!bg-red-500'
-								}
-							]}
-						>
-							<Menu />
-						</Button>
-
-						<Button
-							title="Bildschirm nicht mehr anpinnen"
-							className="aspect-square !p-1"
-							bg="bg-stone-600"
-							click_function={() => {
-								$pinned_display_id = null;
-							}}
-						>
-							<PinOff />
-						</Button>
-					</div>
-				</div>
-
-				<div class="w-full h-[30dvh] bg-stone-800 flex justify-center items-center">
-					{#if pinned_display?.preview_url}
-						<img
-							src={pinned_display.preview_url}
-							alt="preview"
-							class="max-h-full max-w-full object-cover bg-black"
-						/>
-					{:else}
-						<div class="size-full bg-black flex justify-center items-center">
-							<VideoOff class="size-[20%]" />
-						</div>
-					{/if}
-				</div>
-			</div>
-		</div>
-	{/if}
-
-	<div class="min-h-0 h-full grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl overflow-hidden">
-		<!-- Normal Heading Left -->
-		<div class="bg-stone-700 flex justify-between w-full p-1 gap-2 min-w-0">
-			<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-				Bereits verbundene Displays
-			</span>
-			<div class="flex flex-row gap-1">
-				<button
-					class="gap-2 min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors {get_selectable_color_classes(
-						all_selected($displays, $selected_display_ids),
-						{
-							bg: true,
-							hover: true,
-							active: true,
-							text: true
-						}
-					)}"
-					onclick={() => select_all($displays, $selected_display_ids)}
-				>
-					<span
-						>{all_selected($displays, $selected_display_ids)
-							? 'Alle abwählen'
-							: 'Alle auswählen'}</span
-					>
-				</button>
-				<div class="flex flex-ro">
-					<Button
-						title="Bildschirme größer darstellen"
-						className="aspect-square !p-1 rounded-r-none"
-						bg="bg-stone-600"
-						disabled={!Boolean(next_height_step_size('display', $current_height, 1))}
-						click_function={() => {
-							change_height('display', 1);
-						}}
-					>
-						<Plus />
-					</Button>
-					<Button
-						title="Bildschirme kleiner darstellen"
-						className="aspect-square !p-1 rounded-l-none"
-						bg="bg-stone-600"
-						disabled={!Boolean(next_height_step_size('display', $current_height, -1))}
-						click_function={() => {
-							change_height('display', -1);
-						}}
-					>
-						<Minus />
-					</Button>
-				</div>
-			</div>
-		</div>
-		<div class="min-h-0 overflow-y-auto" bind:this={displays_scroll_box}>
-			<div
-				class="min-h-full p-2 flex flex-col gap-4"
-				use:dragHandleZone={{
-					items: $displays,
-					type: 'group',
-					flipDurationMs: dnd_flip_duration_ms,
-					dropFromOthersDisabled: true,
-					dropTargetStyle: { outline: 'none' }
-				}}
-				onconsider={(e: CustomEvent) => {
-					$is_group_drag = true;
-					$displays = e.detail.items;
-				}}
-				onfinalize={(e: CustomEvent) => {
-					$displays = e.detail.items;
-					$is_group_drag = false;
-				}}
-			>
-				{#each $displays as display_group (display_group.id)}
-					<!-- Each Group -->
-					<section
-						out:scale={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
-						animate:flip={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
-						class="outline-none"
-					>
-						<DisplayGroupObject {display_group} />
-					</section>
-				{/each}
-			</div>
-		</div>
-	</div>
-</div>

control/frontend/src/components/FileView.svelte

@@ -1,106 +0,0 @@
-<script lang="ts">
-	import { ClipboardPaste, Download, FolderPlus, Info, Minus, Pen, Plus, RefreshCcw, Scissors, Trash2, Upload } from "lucide-svelte";
-	import { change_height, current_height, next_height_step_size } from "../ts/stores/ui_behavior";
-	import Button from "./Button.svelte";
-	import PathBar from "./PathBar.svelte";
-	import { selected_display_ids, selected_file_ids } from "../ts/stores/select";
-	import { all_files, current_file_path, get_current_folder_elements } from "../ts/stores/files";
-	import { slide } from "svelte/transition";
-	import FolderElementObject from "./FolderElementObject.svelte";
-	import PopUp from "./PopUp.svelte";
-
-</script>
-
-<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
-	<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
-		<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-			Dateien anzeigen und verwalten
-		</span>
-		<div class="flex flex-ro">
-			<Button
-				title="Dateien größer darstellen"
-				className="aspect-square !p-1 rounded-r-none"
-				bg="bg-stone-600"
-				disabled={!Boolean(next_height_step_size('file', $current_height, 1))}
-				click_function={() => {
-					change_height('file', 1);
-				}}
-			>
-				<Plus />
-			</Button>
-			<Button
-				title="Dateien kleiner darstellen"
-				className="aspect-square !p-1 rounded-l-none"
-				bg="bg-stone-600"
-				disabled={!Boolean(next_height_step_size('file', $current_height, -1))}
-				click_function={() => {
-					change_height('file', -1);
-				}}
-			>
-				<Minus />
-			</Button>
-		</div>
-	</div>
-	<div class="flex flex-col gap-2 p-2 overflow-hidden relative rounded-b-2xl">
-		<div class="flex flex-col gap-2 p-2 bg-stone-750 rounded-xl">
-			<PathBar />
-			<div class="flex flex-row justify-between gap-6 overflow-x-auto">
-				<div class="flex flex-row gap-2 shrink-0">
-					<Button
-						title="Neuen Ordner erstellen (Neuen Ordner mit ausgewählten Objekten erstellen)"
-						className="px-3 flex"><FolderPlus /></Button
-					>
-					<div class="border border-stone-700 my-1"></div>
-					<Button title="Datei(en) hochladen" className="px-3 flex"><Upload /></Button>
-					<Button
-						title="Ausgewählte Datei(en) herunterladen"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Download /></Button
-					>
-					<div class="border border-stone-700 my-1"></div>
-					<Button
-						title="Aktuellen Ordner / Ausgewählte Datei(en) zwischen Bildschirmen synchronisieren"
-						className="px-3 flex gap-3"
-						><RefreshCcw />
-						<span class="hidden 2xl:flex">Synchronisieren</span>
-					</Button>
-				</div>
-				<div class="flex flex-row gap-2">
-					<Button
-						title="Ausgewählte Datei(en) ausschneiden"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Scissors /></Button
-					>
-					<Button title="Ausgewählte Datei(en) einfügen" className="px-3 flex"
-						><ClipboardPaste /></Button
-					>
-					<div class="border border-stone-700 my-1"></div>
-					<Button
-						title="Ausgewählte Datei umbenennen"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length !== 1}><Pen /></Button
-					>
-					<Button
-						title="Ausgewählte Datei(en) löschen"
-						hover_bg="bg-red-400"
-						active_bg="bg-red-500"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Trash2 /></Button
-					>
-				</div>
-			</div>
-		</div>
-		<div class="min-h-0 h-full overflow-y-auto bg-stone-750 rounded-xl">
-			<div class="flex flex-col gap-2 p-2 min-h-0">
-				{#each get_current_folder_elements($all_files, $current_file_path, $selected_display_ids) as folder_element (folder_element.id)}
-					<section in:slide={{ duration: 100 }} class="outline-none">
-						<FolderElementObject file={folder_element} />
-					</section>
-				{/each}
-			</div>
-		</div>
-		<!-- <PopUp title="Test" title_icon={Info}>
-			<div>Hier kann beliebiges HTML übergeben werden!</div>
-		</PopUp> -->
-	</div>
-</div>

control/frontend/src/components/FolderElementObject.svelte

@@ -1,250 +0,0 @@
-<script lang="ts">
-	import {
-		ArrowRight,
-		Ban,
-		FileIcon,
-		Folder,
-		Play,
-		RefreshCcwDot,
-		TriangleAlert
-	} from 'lucide-svelte';
-	import {
-		current_height,
-		get_selectable_color_classes,
-		get_shifted_color
-	} from '../ts/stores/ui_behavior';
-	import Button from './Button.svelte';
-	import { supported_file_types, type FolderElement, type SupportedFileType } from '../ts/types';
-	import {
-		is_selected,
-		select,
-		selected_display_ids,
-		selected_file_ids
-	} from '../ts/stores/select';
-	import {
-		all_files,
-		change_file_path,
-		current_file_path,
-		get_display_ids_where_file_is_missing
-	} from '../ts/stores/files';
-	import RefreshPlay from './RefreshPlay.svelte';
-	import { get_file_size_display_string } from '../ts/utils';
-	import { open_file } from '../ts/api_handler';
-	import { displays, get_display_by_id, update_screenshot } from '../ts/stores/displays';
-
-	let { file } = $props<{ file: FolderElement }>();
-
-	const is_folder = file.type === 'inode/directory';
-
-	function get_file_type(file: FolderElement): SupportedFileType | null {
-		for (const key of Object.keys(supported_file_types)) {
-			if (file.type === supported_file_types[key].mime_type) {
-				return supported_file_types[key];
-			}
-		}
-		// Fallback:
-		const extension = file.name.split('.').pop();
-		if (extension) {
-			if (Object.keys(supported_file_types).includes('.' + extension)) {
-				return supported_file_types['.' + extension];
-			}
-		}
-		return null;
-	}
-
-	function get_created_string(date_object: Date, full_string = false) {
-		if (full_string) {
-			return (
-				get_formated_date_string(date_object, true) + ' ' + get_formated_time_string(date_object)
-			);
-		} else if (date_object.toDateString() === new Date().toDateString()) {
-			return get_formated_time_string(date_object);
-		} else {
-			return get_formated_date_string(date_object);
-		}
-	}
-
-	function get_formated_time_string(date_object: Date) {
-		return `${date_object.getHours().toString().padStart(2, '0')}:${date_object.getMinutes().toString().padStart(2, '0')}`;
-	}
-
-	function get_formated_date_string(date_object: Date, full_year = false) {
-		return `${date_object.getDate().toString().padStart(2, '0')}.${(date_object.getMonth() + 1).toString().padStart(2, '0')}.${date_object
-			.getFullYear()
-			.toString()
-			.slice(full_year ? 0 : 2)}`;
-	}
-
-	function get_grayed_out_text_color_strings(is_selected: boolean): string {
-		const color = is_selected ? 'text-stone-600' : 'text-stone-400';
-		const factor = is_selected ? -1 : 1;
-		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
-	}
-
-	function get_grayed_out_border_color_strings(is_selected: boolean): string {
-		const color = is_selected ? 'border-stone-450' : 'border-stone-550';
-		const factor = is_selected ? 1 : 1;
-		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
-	}
-
-	function onclick(e: Event) {
-		select(selected_file_ids, file.id);
-		e.stopPropagation();
-	}
-
-	async function open() {
-		if (is_folder) {
-			change_file_path($current_file_path + file.name + '/');
-		} else {
-			const path_to_file = $current_file_path + file.name;
-			for (const display_id of $selected_display_ids) {
-				const ip = get_display_by_id(display_id, $displays)?.ip ?? null;
-				if (ip) {
-					await open_file(ip, path_to_file);
-					await update_screenshot(display_id);
-				}
-			}
-		}
-	}
-</script>
-
-<div class="flex flex-row h-{$current_height.file} w-full">
-	<div class="h-{$current_height.file} aspect-square max-w-15 flex">
-		<Button
-			disabled={!is_folder && get_file_type(file) === null}
-			title={!is_folder && get_file_type(file) === null ? 'Dateityp nicht unterstützt' : ''}
-			className="flex rounded-l-lg rounded-r-none {is_folder
-				? 'text-stone-450'
-				: 'text-stone-800'} w-full"
-			div_class="w-full"
-			bg={get_selectable_color_classes(
-				!is_folder && get_file_type(file) !== null,
-				{
-					bg: true
-				},
-				-50
-			)}
-			hover_bg={get_selectable_color_classes(
-				!is_folder,
-				{
-					bg: true
-				},
-				50
-			)}
-			active_bg={get_selectable_color_classes(
-				!is_folder,
-				{
-					bg: true
-				},
-				100
-			)}
-			click_function={(e) => {
-				open();
-				e.stopPropagation();
-			}}
-		>
-			{#if is_folder}
-				<ArrowRight class="size-full" strokeWidth="3" />
-			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
-				<RefreshPlay className="size-full" />
-			{:else if get_file_type(file) !== null}
-				<Play class="size-full" strokeWidth="3" />
-			{:else}
-				<Ban class="size-full" strokeWidth="3" />
-			{/if}
-		</Button>
-	</div>
-	<div
-		role="button"
-		tabindex="0"
-		onkeydown={(e) => {
-			if (e.key === 'Enter' || e.key === ' ') onclick(e);
-		}}
-		{onclick}
-		class="{get_selectable_color_classes(is_selected(file.id, $selected_file_ids), {
-			bg: true,
-			hover: true,
-			active: true,
-			text: true
-		})} rounded-r-lg transition-colors duration-200 gap-4 flex flex-row justify-between cursor-pointer group w-full min-w-0"
-	>
-		<div class="flex flex-row gap-2 min-w-0 w-full">
-			<div class="aspect-square rounded-md flex justify-center items-center p-2">
-				{#if is_folder}
-					<Folder class="size-full" />
-				{:else if file.thumbnail}
-					<div></div>
-				{:else if get_file_type(file)?.icon}
-					{@const Icon = get_file_type(file)?.icon}
-					<Icon class="size-full" />
-				{:else}
-					<FileIcon />
-				{/if}
-			</div>
-			<div class="content-center truncate select-none w-full" title={file.name}>
-				{file.name.includes('.') ? file.name.slice(0, file.name.lastIndexOf('.')) : file.name}
-			</div>
-		</div>
-		<div
-			class=" p-1 flex flex-row items-center gap-1 pr-1 {get_grayed_out_text_color_strings(
-				is_selected(file.id, $selected_file_ids)
-			)} duration-200 transition-colors"
-		>
-			{#if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[1].length !== 0}
-				<Button
-					className="h-8 aspect-square transition-colors duration-200 !p-1.5 text-stone-100"
-					bg="bg-red-500"
-					click_function={(e) => {
-						e.stopPropagation();
-					}}
-				>
-					<TriangleAlert class="size-full" />
-				</Button>
-			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
-				<Button
-					className="h-8 aspect-square transition-colors duration-200 !p-1.5"
-					bg="bg-transparent"
-					hover_bg={get_selectable_color_classes(false, {
-						bg: true
-					})}
-					active_bg={get_selectable_color_classes(false, {
-						bg: true
-					})}
-					click_function={(e) => {
-						e.stopPropagation();
-					}}
-				>
-					<RefreshCcwDot class="size-full" />
-				</Button>
-			{/if}
-			<div
-				class="w-14 content-center text-center select-none text-xs whitespace-nowrap"
-				title={get_created_string(file.date_created, true)}
-			>
-				{get_created_string(file.date_created)}
-			</div>
-			<div
-				class="h-[70%] border {get_grayed_out_border_color_strings(
-					is_selected(file.id, $selected_file_ids)
-				)} duration-200 transition-colors my-1"
-			></div>
-			<div
-				class="w-12 content-center text-center select-none text-xs whitespace-nowrap truncate"
-				title={file.type}
-			>
-				{is_folder ? 'Ordner' : (get_file_type(file)?.display_name ?? '?')}
-			</div>
-			<div
-				class="h-[70%] border {get_grayed_out_border_color_strings(
-					is_selected(file.id, $selected_file_ids)
-				)} duration-200 transition-colors"
-			></div>
-			<div
-				class="w-12 content-center text-center select-none text-xs whitespace-nowrap"
-				title={get_file_size_display_string(file.size, 3)}
-			>
-				{get_file_size_display_string(file.size)}
-			</div>
-		</div>
-	</div>
-</div>

control/frontend/src/components/PopUp.svelte

@@ -1,69 +0,0 @@
-<script lang="ts">
-	import { X } from 'lucide-svelte';
-	import { onDestroy, onMount } from 'svelte';
-	import Button from './Button.svelte';
-	import type { PopupContent } from '../ts/types';
-	import { fade } from 'svelte/transition';
-
-	let { content, close_function } = $props<{
-		content: PopupContent;
-		close_function: () => void;
-	}>();
-
-	function try_to_close() {
-		if (!content.closable || !content.open) return;
-		close_function();
-	}
-
-	function handleKeydown(e: KeyboardEvent) {
-		if (e.key === 'Escape') {
-			try_to_close();
-		}
-	}
-
-	onMount(() => {
-		window.addEventListener('keydown', handleKeydown);
-		return () => window.removeEventListener('keydown', handleKeydown);
-	});
-</script>
-
-{#if content.open}
-	<!-- svelte-ignore a11y_no_static_element_interactions -->
-	<!-- svelte-ignore a11y_click_events_have_key_events -->
-	<div
-		class="absolute inset-0 backdrop-blur bg-white/10 flex justify-center items-center"
-		onclick={try_to_close}
-		transition:fade={{ duration: 100 }}
-	>
-		<!-- svelte-ignore a11y_no_static_element_interactions -->
-		<!-- svelte-ignore a11y_click_events_have_key_events -->
-		<div
-			class="bg-stone-800 rounded-2xl min-w-[30%] min-h-[30%] max-w-[80%] max-h-[80%] flex flex-col shadow-2xl/60 overflow-hidden"
-			onclick={(e) => e.stopPropagation()}
-		>
-			<div
-				class="text-2xl font-bold bg-stone-700 p-1.5 flex flex-row justify-between gap-6 w-full"
-			>
-				<div class="flex flex-row flex-1 gap-4 pl-2 py-1 items-center grow whitespace-nowrap min-w-0 flex-shrink-0 {content.title_class ?? ''}">
-					{#if content.title_icon}
-						{@const Icon = content.title_icon}
-						<Icon strokeWidth="2.8" class="flex-shrink-0" />
-					{/if}
-					<div class="flex-shrink-0">
-						{content.title}
-					</div>
-				</div>
-				<div class="flex aspect-square flex-shrink-0">
-					{#if content.closable}
-						<Button className="aspect-square !p-1.5" click_function={try_to_close}>
-							<X />
-						</Button>
-					{/if}
-				</div>
-			</div>
-			<div class="p-2 min-h-0 overflow-auto flex flex-col gap-2">
-				{@render content.snippet()}
-			</div>
-		</div>
-	</div>
-{/if}

control/frontend/src/components/TextInput.svelte

@@ -1,70 +0,0 @@
-<script lang="ts">
-	import { fade } from 'svelte/transition';
-	import { get_shifted_color } from '../ts/stores/ui_behavior';
-	import { onMount } from 'svelte';
-
-	let {
-		current_value = $bindable(),
-		current_valid = $bindable(),
-		className = '',
-		bg = 'bg-stone-750',
-		title,
-		placeholder = '',
-		is_valid_function = null
-	} = $props<{
-		current_value: string;
-		current_valid: boolean;
-		className?: string;
-		bg?: string;
-		title: string;
-		placeholder?: string;
-		is_valid_function?: ((input: string) => [boolean, string]) | null;
-	}>();
-
-	let focus_bg = get_shifted_color(bg, 100);
-	let focussed = $state(false);
-	let current_info = $state('');
-
-	function validate_input() {
-		if (!is_valid_function) return;
-		[current_valid, current_info] = is_valid_function(current_value.trim());
-	}
-
-	function get_highlighting_string(): string {
-		if (!is_valid_function) return '';
-		if (current_valid) {
-			return 'focus:inset-ring-2 focus:inset-ring-green-400';
-		} else {
-			return 'inset-ring-2 inset-ring-red-400';
-		}
-	}
-	onMount(() => {
-		validate_input();
-	});
-</script>
-
-<div class="flex flex-col {className}">
-	<div class="flex flex-row justify-between text-sm px-1">
-		<div class="text-stone-400">
-			{title}:
-		</div>
-		{#if is_valid_function && focussed}
-			<div class={current_valid ? "text-green-400" : "text-red-400"} transition:fade={{ duration: 100 }}>
-				{current_info}
-			</div>
-		{/if}
-	</div>
-	<input
-		bind:value={current_value}
-		type="text"
-		oninput={validate_input}
-		onfocus={() => {
-			focussed = true;
-		}}
-		onfocusout={() => {
-			focussed = false;
-		}}
-		class="{bg} focus:{focus_bg} outline-none py-2 px-3 rounded-xl transition-all duration-100 {get_highlighting_string()}"
-		{placeholder}
-	/>
-</div>

control/frontend/src/lib/components/Button.svelte

@@ -1,7 +1,6 @@
 <script lang="ts">
-	import { flip } from 'svelte/animate';
+	import { get_shifted_color } from '$lib/ts/stores/ui_behavior';
-	import { get_shifted_color } from '../ts/stores/ui_behavior';
+	import type { MenuOption } from '$lib/ts/types';
-	import type { MenuOption } from '../ts/types';
 	import { fade } from 'svelte/transition';
 
 	let {
@@ -11,12 +10,12 @@
 		active_bg = get_shifted_color(bg, 200),
 		disabled = false,
 		title = '',
-		click_function = (e: MouseEvent) => {},
+		click_function = () => {},
-		menu_options = null,
+		menu_options = [],
 		menu_class = 'right-0',
 		div_class = '',
 		children
-	} = $props<{
+	}: {
 		className?: string;
 		bg?: string;
 		hover_bg?: string;
@@ -24,19 +23,19 @@
 		disabled?: boolean;
 		title?: string;
 		click_function?: (e: MouseEvent) => void;
-		menu_options?: MenuOption[] | null;
+		menu_options?: MenuOption[];
 		menu_class?: string;
-		div_class?: string,
+		div_class?: string;
 		children?: any;
-	}>();
+	} = $props();
 
 	let menu_shown = $state(false);
 	let button_element: HTMLButtonElement;
-	let menu_element: HTMLDivElement;
+	let menu_element: HTMLDivElement | null = $state(null);
 	let position_bottom = $state(true);
 
 	function onclick(e: MouseEvent) {
-		if (menu_options !== null) {
+		if (menu_options.length !== 0) {
 			if (menu_shown) {
 				close_menu();
 			} else {
@@ -47,7 +46,7 @@
 	}
 
 	function getPolygon(): [number, number][] | null {
-		if (!button_element || !button_element) return null;
+		if (!button_element || !menu_element) return null;
 		const b = button_element.getBoundingClientRect();
 		const m = menu_element.getBoundingClientRect();
 
@@ -154,7 +153,7 @@
 			transition:fade={{ duration: 50 }}
 			class="absolute {position_bottom
 				? 'top-full'
-				: 'bottom-full'} {menu_class} z-100 my-1.5 min-w-64 rounded-xl backdrop-blur bg-black/20 border border-stone-400/10 shadow-xl/20 p-2 flex flex-col gap-2 text-stone-200 cursor-auto"
+				: 'bottom-full'} {menu_class} z-100 my-1.5 min-w-64 rounded-xl backdrop-blur bg-stone-800/45 border border-stone-400/10 shadow-xl/20 p-2 flex flex-col gap-2 text-stone-200 cursor-auto"
 			onclick={(e) => {
 				e.stopPropagation();
 			}}
@@ -166,8 +165,8 @@
 						? 'text-stone-500 cursor-not-allowed'
 						: 'hover:bg-white/35 active:bg-white/60 cursor-pointer ' +
 							option.class} rounded-lg p-2 transition-colors duration-200 select-none flex flex-row gap-2 items-center"
-					onclick={(e) => {
+					onclick={async (e) => {
-						if (option.on_select) option.on_select();
+						if (option.on_select) await option.on_select();
 						close_menu();
 					}}
 				>

control/frontend/src/lib/components/DNDGrip.svelte

@@ -2,10 +2,10 @@
 	import { GripHorizontal } from 'lucide-svelte';
 	import { dragHandle } from 'svelte-dnd-action';
 
-	let { bg, className = "" } = $props<{
+	let { bg, className = "" }: {
 		bg: string;
-        className?: string;
+		className?: string;
-	}>();
+	}  = $props();
 </script>
 
 <div

control/frontend/src/lib/components/DisplayGroupObject.svelte

@@ -0,0 +1,126 @@
+<script lang="ts">
+	import { dragHandleZone, TRIGGERS } from 'svelte-dnd-action';
+	import {
+		dnd_flip_duration_ms,
+		get_selectable_color_classes,
+		is_display_drag,
+		is_group_drag
+	} from '$lib/ts/stores/ui_behavior';
+	import { cubicOut } from 'svelte/easing';
+	import { flip } from 'svelte/animate';
+	import DisplayObject from './DisplayObject.svelte';
+	import {
+		all_displays_of_group_selected,
+		get_display_ids_in_group,
+		set_select_for_group,
+		set_new_display_order
+	} from '$lib/ts/stores/displays';
+	import DNDGrip from '$lib/components/DNDGrip.svelte';
+	import { fade } from 'svelte/transition';
+	import type { MenuOption } from '$lib/ts/types';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+	import { liveQuery, type Observable } from 'dexie';
+
+	let {
+		display_group_id,
+		get_display_menu_options,
+		close_pinned_display
+	}: {
+		display_group_id: string;
+		get_display_menu_options: (display_id: string) => MenuOption[];
+		close_pinned_display: () => void;
+	} = $props();
+
+	let all_selected: Observable<boolean> | undefined = $state();
+	$effect(() => {
+		const sdi = $selected_display_ids;
+		all_selected = liveQuery(() => all_displays_of_group_selected(display_group_id, sdi));
+	});
+	let display_ids_in_group = liveQuery(() => get_display_ids_in_group(display_group_id));
+	let hovering_selectable = $state(false);
+
+	async function select_all_of_this_group() {
+		const new_value = !($all_selected || false);
+		await set_select_for_group(display_group_id, new_value);
+	}
+
+	async function handle_consider(e: CustomEvent) {
+		const { items, info } = e.detail;
+
+		if (items.length !== 1 && info.trigger === TRIGGERS.DRAG_STARTED) {
+			$is_display_drag = true;
+			// add_empty_display_group();
+		}
+		await set_new_display_order(items);
+	}
+
+	async function handle_finalize(e: CustomEvent) {
+		$is_display_drag = false;
+		await set_new_display_order(e.detail.items);
+	}
+</script>
+
+<div
+	transition:fade={{ duration: 100 }}
+	class="{get_selectable_color_classes(
+		$all_selected || false,
+		{
+			bg: true,
+			hover: hovering_selectable,
+			active: hovering_selectable,
+			text: true
+		},
+		-150,
+		-50
+	)} transition-colors duration-200 rounded-2xl flex flex-row cursor-pointer"
+>
+	<div
+		class="flex flex-col min-w-0 pl-2 py-2 gap-2 w-full"
+		use:dragHandleZone={{
+			items: $display_ids_in_group || [],
+			type: 'item',
+			flipDurationMs: dnd_flip_duration_ms,
+			dropTargetStyle: { outline: 'none' }
+		}}
+		onconsider={handle_consider}
+		onfinalize={handle_finalize}
+	>
+		{#each $display_ids_in_group || [] as display (display.id)}
+			<!-- Each Group -->
+			<section
+				animate:flip={{ duration: $is_group_drag ? 0 : dnd_flip_duration_ms, easing: cubicOut }}
+				class="outline-none"
+				role="figure"
+			>
+				<DisplayObject {display} {get_display_menu_options} {close_pinned_display} />
+			</section>
+		{/each}
+
+		{#if ($display_ids_in_group || []).length === 0}
+			<div class="min-h-10 h-full w-full pl-2 py-2 flex justify-center items-center">
+				Hier in leere neue Gruppe ablegen
+			</div>
+		{/if}
+	</div>
+	<div
+		class="flex items-center justify-center px-2"
+		onclick={select_all_of_this_group}
+		role="button"
+		tabindex="0"
+		onkeydown={async (e) => {
+			if (e.key === 'Enter' || e.key === ' ') await select_all_of_this_group();
+		}}
+		onmouseenter={() => (hovering_selectable = true)}
+		onmouseleave={() => (hovering_selectable = false)}
+	>
+		<DNDGrip
+			bg={get_selectable_color_classes(
+				$all_selected || false,
+				{
+					bg: true
+				},
+				-150
+			)}
+		/>
+	</div>
+</div>

control/frontend/src/lib/components/DisplayObject.svelte

@@ -1,38 +1,51 @@
 <script lang="ts">
-	import Button from './Button.svelte';
+	import Button from '$lib/components/Button.svelte';
 	import {
 		current_height,
 		get_selectable_color_classes,
 		pinned_display_id
-	} from '../ts/stores/ui_behavior';
+	} from '$lib/ts/stores/ui_behavior';
-	import DNDGrip from './DNDGrip.svelte';
+	import DNDGrip from '$lib/components/DNDGrip.svelte';
-	import { Menu, Pencil, Pin, PinOff, Trash2, VideoOff, X } from 'lucide-svelte';
+	import { Menu, Pin, PinOff, VideoOff } from 'lucide-svelte';
 	import OnlineState from './OnlineState.svelte';
-	import type { Display } from '../ts/types';
+	import type { Display, MenuOption } from '$lib/ts/types';
-	import { is_selected, select, selected_display_ids } from '../ts/stores/select';
+	import { is_selected, select, selected_display_ids } from '$lib/ts/stores/select';
+	import { screenshot_loop } from '$lib/ts/stores/displays';
+	import { change_file_path, current_file_path } from '$lib/ts/stores/files';
 
-	let { display } = $props<{
+	let {
+		display,
+		get_display_menu_options,
+		close_pinned_display
+	}: {
 		display: Display;
-	}>();
+		get_display_menu_options: (display_id: string) => MenuOption[];
+		close_pinned_display: () => void;
+	} = $props();
 
 	let hovering_unselectable = $state(false);
 
-	function onclick(e: Event) {
+	async function onclick(e: Event) {
-		select(selected_display_ids, display.id);
 		e.stopPropagation();
+		select(selected_display_ids, display.id, 'toggle');
+
+		// force file view update
+		await change_file_path($current_file_path);
 	}
 
-	function on_preview_click(e: MouseEvent) {
+	async function on_preview_click(e: MouseEvent) {
 		if ($pinned_display_id === display.id) {
-			$pinned_display_id = null;
+			close_pinned_display();
 		} else {
 			$pinned_display_id = display.id;
 		}
+		await screenshot_loop(display.id);
 		e.stopPropagation();
 	}
 </script>
 
 <div
+	data-testid="display"
 	role="button"
 	tabindex="0"
 	onkeydown={(e) => {
@@ -49,7 +62,7 @@
 	<div class="flex flex-row gap-4 min-w-0 flex-1">
 		<!-- Left Preview Screen -->
 		<button
-			class="group relative aspect-16/9 bg-stone-800 h-full rounded-lg overflow-hidden cursor-pointer text-stone-200 transition-colors duration-200"
+			class="group relative aspect-video bg-stone-800 h-full rounded-lg overflow-hidden cursor-pointer text-stone-200 transition-colors duration-200"
 			onmouseenter={() => (hovering_unselectable = true)}
 			onmouseleave={() => (hovering_unselectable = false)}
 			onclick={on_preview_click}
@@ -59,8 +72,8 @@
 					<div class="size-[50%]">
 						<Pin class="size-full" />
 					</div>
-				{:else if display.preview_url}
+				{:else if display.preview.url}
-					<img src={display.preview_url} alt="preview" class="w-full object-cover bg-black" />
+					<img src={display.preview.url} alt="preview" class="w-full object-cover bg-black" />
 				{:else}
 					<!-- No Signal -->
 					<div class="size-full bg-black flex justify-center items-center">
@@ -121,17 +134,7 @@
 				click_function={(e) => {
 					e.stopPropagation();
 				}}
-				menu_options={[
+				menu_options={get_display_menu_options(display.id)}
-					{
-						icon: Pencil,
-						name: 'Bildschirm bearbeiten'
-					},
-					{
-						icon: Trash2,
-						name: 'Bildschirm löschen',
-						class: 'text-red-400 hover:text-stone-200 hover:!bg-red-400 active:!bg-red-500'
-					}
-				]}
 			>
 				<Menu />
 			</Button>

control/frontend/src/lib/components/HighlightedText.svelte

@@ -0,0 +1,19 @@
+<script lang="ts">
+	let {
+		children,
+		bg = 'bg-stone-750',
+		fg = 'text-stone-200',
+		className = ''
+	}: {
+		children: any;
+		bg?: string;
+		fg?: string;
+		className?: string;
+	} = $props();
+</script>
+
+<div
+	class="{bg} {fg} {className} rounded-lg py-0.5 px-1 inline-block truncate min-w-0 max-w-full align-middle my-[1.5px]"
+>
+	{@render children()}
+</div>

control/frontend/src/lib/components/InodeElement.svelte

@@ -0,0 +1,399 @@
+<script lang="ts">
+	import { ArrowRight, Ban, FileIcon, Folder, Play } from 'lucide-svelte';
+	import {
+		current_height,
+		get_selectable_color_classes,
+		get_shifted_color
+	} from '$lib/ts/stores/ui_behavior';
+	import Button from '$lib/components/Button.svelte';
+	import {
+		supported_file_type_icon,
+		type Inode,
+		get_file_primary_key,
+		type FileOnDisplay,
+		type FileLoadingData
+	} from '$lib/ts/types';
+
+	import {
+		is_selected,
+		select,
+		selected_display_ids,
+		selected_file_ids
+	} from '$lib/ts/stores/select';
+	import {
+		change_file_path,
+		current_file_path,
+		get_date_mapping,
+		get_missing_colliding_display_ids
+	} from '$lib/ts/stores/files';
+	import RefreshPlay from '../svgs/RefreshPlay.svelte';
+	import { get_file_size_display_string, get_file_type } from '$lib/ts/utils';
+	import { open_file } from '$lib/ts/api_handler';
+	import { run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { get_thumbnail_url } from '$lib/ts/stores/thumbnails';
+	import { liveQuery, type Observable } from 'dexie';
+	import { db } from '$lib/ts/database';
+
+	let { file, not_interactable = false }: { file: Inode; not_interactable?: boolean } = $props();
+
+	let missing_colliding_displays_ids:
+		| Observable<{ missing: string[]; colliding: string[] }>
+		| undefined = $state();
+	$effect(() => {
+		const s = $selected_file_ids;
+		missing_colliding_displays_ids = liveQuery(() => get_missing_colliding_display_ids(file, s));
+	});
+
+	let loading_data:
+		| Observable<{
+				is_loading: boolean;
+				total_percentage: number;
+				total_seconds_until_finish: number;
+				display_data: FileLoadingData[];
+		  }>
+		| undefined = $state();
+	$effect(() => {
+		const d = $selected_display_ids;
+		loading_data = liveQuery(() => get_loading_data(get_file_primary_key(file), d));
+	});
+
+	let loading_finished = $state(false);
+	$effect(() => {
+		if (!loading_data) return;
+		let prev: boolean | undefined;
+		const sub = loading_data.subscribe((v) => {
+			if (prev === true && v.is_loading === false) {
+				loading_finished = true;
+				setTimeout(() => (loading_finished = false), 200);
+			}
+			prev = v.is_loading;
+		});
+		return () => sub.unsubscribe();
+	});
+
+	let thumbnail_url = liveQuery(() => get_thumbnail_url(get_file_primary_key(file)));
+	let date_mapping: Observable<Record<string, Date>> = liveQuery(() =>
+		get_date_mapping(get_file_primary_key(file))
+	);
+
+	const is_folder = file.type === 'inode/directory';
+
+	function get_created_info(date_mapping: Record<string, Date> | undefined, full_string = false) {
+		if (!date_mapping) return '';
+		const keys = Object.keys(date_mapping);
+		if (keys.length === 0) return '';
+
+		if (keys.length === 1) return get_formated_created_string(date_mapping[keys[0]], full_string);
+
+		let out = '';
+		let is_different = false;
+		const first_formated_created_string = get_formated_created_string(
+			date_mapping[keys[0]],
+			full_string
+		);
+		out += `${keys[0]}: ${first_formated_created_string}`;
+
+		for (const key of keys.splice(0, 1)) {
+			const current_formated_created_string = get_formated_created_string(
+				date_mapping[key],
+				full_string
+			);
+			if (!is_different && current_formated_created_string !== first_formated_created_string)
+				is_different = true;
+			out += `\n${key}: ${current_formated_created_string}`;
+		}
+
+		if (full_string) {
+			return is_different ? out : first_formated_created_string;
+		} else {
+			return is_different ? 'versch.' : first_formated_created_string;
+		}
+	}
+
+	function get_formated_created_string(date_object: Date, full_string: boolean) {
+		if (full_string) {
+			return (
+				get_formated_date_string(date_object, true) + ' ' + get_formated_time_string(date_object)
+			);
+		} else if (date_object.toDateString() === new Date().toDateString()) {
+			return get_formated_time_string(date_object);
+		} else {
+			return get_formated_date_string(date_object);
+		}
+	}
+
+	function get_formated_time_string(date_object: Date) {
+		return `${date_object.getHours().toString().padStart(2, '0')}:${date_object.getMinutes().toString().padStart(2, '0')}`;
+	}
+
+	function get_formated_date_string(date_object: Date, full_year = false) {
+		return `${date_object.getDate().toString().padStart(2, '0')}.${(date_object.getMonth() + 1).toString().padStart(2, '0')}.${date_object
+			.getFullYear()
+			.toString()
+			.slice(full_year ? 0 : 2)}`;
+	}
+
+	function get_grayed_out_text_color_strings(is_selected: boolean): string {
+		if (not_interactable) return 'text-stone-400';
+		if ($loading_data?.is_loading) return 'text-white/20';
+		const color = is_selected ? 'text-stone-600' : 'text-stone-400';
+		const factor = is_selected ? -1 : 1;
+		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
+	}
+
+	function get_grayed_out_border_color_strings(is_selected: boolean): string {
+		if (not_interactable) return 'border-stone-550';
+		if ($loading_data?.is_loading) return 'border-white/10';
+		const color = is_selected ? 'border-stone-450' : 'border-stone-550';
+		const factor = is_selected ? 1 : 1;
+		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
+	}
+
+	function onclick(e: Event) {
+		if (not_interactable || $loading_data?.is_loading) return;
+		select(selected_file_ids, get_file_primary_key(file), 'toggle');
+		e.stopPropagation();
+	}
+
+	async function open() {
+		if (is_folder) {
+			await change_file_path($current_file_path + file.name + '/');
+		} else {
+			const path_to_file = $current_file_path + file.name;
+			await run_on_all_selected_displays((d) => open_file(d.ip, path_to_file));
+		}
+	}
+
+	function get_main_classes(): string {
+		let out = '';
+
+		if (loading_finished) {
+			out += 'bg-stone-500 text-white/30';
+		} else if ($loading_data?.is_loading) {
+			out += 'bg-stone-700 text-white/30';
+		} else {
+			out += get_selectable_color_classes(
+				!not_interactable && is_selected(get_file_primary_key(file), $selected_file_ids),
+				{
+					bg: true,
+					hover: !not_interactable,
+					active: !not_interactable,
+					text: true
+				}
+			);
+		}
+
+		if (not_interactable) {
+			out += ' rounded-lg';
+		} else if ($loading_data?.is_loading) {
+			out += ' rounded-r-lg';
+		} else {
+			out += ' rounded-r-lg cursor-pointer';
+		}
+
+		return out;
+	}
+
+	async function get_loading_data(
+		file_primary_key: string,
+		selected_display_ids: string[]
+	): Promise<{
+		is_loading: boolean;
+		total_percentage: number;
+		total_seconds_until_finish: number;
+		display_data: FileLoadingData[];
+	}> {
+		const file_on_display_data: FileOnDisplay[] = await db.files_on_display
+			.where('file_primary_key')
+			.equals(file_primary_key)
+			.filter((e) => selected_display_ids.includes(e.display_id))
+			.toArray();
+		if (file_on_display_data.length === 0) {
+			return {
+				is_loading: true,
+				total_percentage: 0,
+				total_seconds_until_finish: -1,
+				display_data: []
+			};
+		}
+		const display_data = [];
+		let is_loading = false;
+		let percentage_sum = 0;
+		let total_seconds_until_finish = 0;
+		for (const fod of file_on_display_data) {
+			if (!!fod.loading_data) {
+				if (!is_loading) is_loading = true;
+				percentage_sum += fod.loading_data.percentage;
+				total_seconds_until_finish += fod.loading_data.seconds_until_finish;
+				display_data.push(fod.loading_data);
+			} else {
+				percentage_sum += 100;
+			}
+		}
+		let total_percentage = percentage_sum / display_data.length;
+		return {
+			is_loading,
+			total_percentage,
+			total_seconds_until_finish,
+			display_data
+		};
+	}
+</script>
+
+<div
+	data-testid="inode"
+	class="flex flex-row h-{$current_height.file} w-full {loading_finished
+		? 'scale-105'
+		: ''} transition-[scale] duration-300"
+>
+	{#if !not_interactable}
+		<div class="h-{$current_height.file} aspect-square max-w-15 flex">
+			<Button
+				disabled={!is_folder && get_file_type(file) === null}
+				title={!is_folder && get_file_type(file) === null ? 'Dateityp nicht unterstützt' : ''}
+				className="flex rounded-l-lg rounded-r-none {is_folder
+					? 'text-stone-450'
+					: 'text-stone-800'} w-full"
+				div_class="w-full"
+				bg={get_selectable_color_classes(
+					!is_folder && get_file_type(file) !== null,
+					{
+						bg: true
+					},
+					-50
+				)}
+				hover_bg={get_selectable_color_classes(
+					!is_folder,
+					{
+						bg: true
+					},
+					50
+				)}
+				active_bg={get_selectable_color_classes(
+					!is_folder,
+					{
+						bg: true
+					},
+					100
+				)}
+				click_function={(e) => {
+					open();
+					e.stopPropagation();
+				}}
+			>
+				{#if is_folder}
+					<ArrowRight class="size-full" strokeWidth="3" />
+				{:else if $missing_colliding_displays_ids && $missing_colliding_displays_ids.missing.length !== 0}
+					<RefreshPlay className="size-full" />
+				{:else if get_file_type(file) !== null}
+					<Play class="size-full" strokeWidth="3" />
+				{:else}
+					<Ban class="size-full" strokeWidth="3" />
+				{/if}
+			</Button>
+		</div>
+	{/if}
+	<div
+		role="button"
+		tabindex="0"
+		onkeydown={(e) => {
+			if (e.key === 'Enter' || e.key === ' ') onclick(e);
+		}}
+		{onclick}
+		class="{get_main_classes()} relative transition-colors duration-200 gap-4 flex flex-row justify-between group w-full min-w-0"
+	>
+		{#if $loading_data?.is_loading}
+			<!-- <div class="pointer-events-none absolute inset-0"> -->
+			<div
+				class="absolute pointer-events-none inset-y-0 left-0 transition-[width] duration-200 bg-stone-600 rounded-r-lg"
+				style={`width: ${$loading_data.total_percentage}%;`}
+			></div>
+			<!-- </div> -->
+		{/if}
+		<div class="flex flex-row gap-2 min-w-0 w-full z-10">
+			<div class="aspect-square rounded-md flex justify-center items-center">
+				{#if is_folder}
+					<Folder class="size-full p-2" />
+				{:else if $thumbnail_url || null}
+					<img
+						src={$thumbnail_url || null}
+						alt="ERR"
+						class="object-contain size-full select-none block p-1 rounded-lg text-center content-center text-red-300"
+						draggable="false"
+					/>
+				{:else if supported_file_type_icon[get_file_type(file)?.display_name || '']}
+					{@const Icon = supported_file_type_icon[get_file_type(file)?.display_name || '']}
+					<Icon class="size-full p-2" />
+				{:else}
+					<FileIcon class="size-full p-2" />
+				{/if}
+			</div>
+			<div class="content-center truncate select-none w-full" title={file.name}>
+				{file.name.includes('.') && !is_folder && get_file_type(file)
+					? file.name.slice(0, file.name.lastIndexOf('.'))
+					: file.name}
+			</div>
+		</div>
+		<div
+			class=" p-1 flex flex-row items-center gap-1 pr-1 z-10 {get_grayed_out_text_color_strings(
+				is_selected(get_file_primary_key(file), $selected_file_ids)
+			)} duration-200 transition-colors"
+		>
+			<!-- {#if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[1].length !== 0}
+				<Button
+					className="h-8 aspect-square transition-colors duration-200 !p-1.5 text-stone-100"
+					bg="bg-red-500"
+					click_function={(e) => {
+						e.stopPropagation();
+					}}
+				>
+					<TriangleAlert class="size-full" />
+				</Button>
+			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
+				<Button
+					className="h-8 aspect-square transition-colors duration-200 !p-1.5"
+					bg="bg-transparent"
+					hover_bg={get_selectable_color_classes(false, {
+						bg: true
+					})}
+					active_bg={get_selectable_color_classes(false, {
+						bg: true
+					})}
+					click_function={(e) => {
+						e.stopPropagation();
+					}}
+				>
+					<RefreshCcwDot class="size-full" />
+				</Button>
+			{/if} -->
+			<div
+				class="w-14 content-center text-center select-none text-xs whitespace-nowrap"
+				title={get_created_info($date_mapping, true)}
+			>
+				{get_created_info($date_mapping)}
+			</div>
+			<div
+				class="h-[70%] border {get_grayed_out_border_color_strings(
+					is_selected(get_file_primary_key(file), $selected_file_ids)
+				)} duration-200 transition-colors my-1"
+			></div>
+			<div
+				class="w-12 content-center text-center select-none text-xs whitespace-nowrap truncate"
+				title={file.type}
+			>
+				{is_folder ? 'Ordner' : (get_file_type(file)?.display_name ?? '?')}
+			</div>
+			<div
+				class="h-[70%] border {get_grayed_out_border_color_strings(
+					is_selected(get_file_primary_key(file), $selected_file_ids)
+				)} duration-200 transition-colors"
+			></div>
+			<div
+				class="w-12 content-center text-center select-none text-xs whitespace-nowrap"
+				title={get_file_size_display_string(file.size, 3)}
+			>
+				{get_file_size_display_string(file.size)}
+			</div>
+		</div>
+	</div>
+</div>

control/frontend/src/lib/components/OnlineState.svelte

@@ -1,17 +1,24 @@
 <script lang="ts">
-	let { selected, status, className = "" } = $props<{
+	import { type DisplayStatus } from '$lib/ts/types';
-		selected: boolean;
+	import { display_status_to_info } from '$lib/ts/utils';
-		status: string;
-        className?: string;
-	}>();
 
-	function get_text_color(selected: boolean, status: string) {
+	let {
+		selected,
+		status,
+		className = ''
+	}: {
+		selected: boolean;
+		status: DisplayStatus;
+		className?: string;
+	} = $props();
+
+	function get_text_color(selected: boolean, status: DisplayStatus) {
 		switch (status) {
-			case 'Online':
+			case 'app_online':
 				return selected ? 'text-green-700' : 'text-green-400';
-			case 'Lädt':
+			case 'app_offline':
 				return selected ? 'text-amber-700' : 'text-amber-400';
-			case 'Offline':
+			case 'host_offline':
 				return selected ? 'text-red-700' : 'text-red-400';
 			default:
 				return selected ? 'text-stone-700' : 'text-stone-400';
@@ -20,5 +27,5 @@
 </script>
 
 <div class="{get_text_color(selected, status)} {className} transition-colors duration-100">
-	{status}
+	{display_status_to_info(status)}
 </div>

control/frontend/src/lib/components/PopUp.svelte

@@ -0,0 +1,80 @@
+<script lang="ts">
+	import { X } from 'lucide-svelte';
+	import Button from './Button.svelte';
+	import type { PopupContent } from '$lib/ts/types';
+	import { fade } from 'svelte/transition';
+	import { onMount } from 'svelte';
+
+	let {
+		content,
+		close_function,
+		className = '',
+		snippet_container_class = ''
+	}: {
+		content: PopupContent;
+		close_function: () => void;
+		className?: string;
+		snippet_container_class?: string;
+	} = $props();
+
+	function try_to_close() {
+		if (!content.closable || !content.open) return;
+		close_function();
+	}
+
+	function handleKeydown(e: KeyboardEvent) {
+		if (e.key === 'Escape') {
+			try_to_close();
+		}
+	}
+
+	onMount(() => {
+		window.addEventListener('keydown', handleKeydown);
+		return () => window.removeEventListener('keydown', handleKeydown);
+	});
+</script>
+
+{#if content.open}
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<!-- svelte-ignore a11y_click_events_have_key_events -->
+	<div
+		class="absolute inset-0 backdrop-blur flex justify-center items-center z-50 {className}"
+		onclick={try_to_close}
+		transition:fade={{ duration: 100 }}
+	>
+		<!-- svelte-ignore a11y_no_static_element_interactions -->
+		<!-- svelte-ignore a11y_click_events_have_key_events -->
+		<div
+			class="bg-stone-800 rounded-2xl min-w-[30%] max-w-[90%] max-h-[85%] flex flex-col shadow-2xl/60 overflow-hidden {content.window_class ??
+				''}"
+			onclick={(e) => e.stopPropagation()}
+		>
+			{#if content.title}
+				<div class="font-bold bg-stone-700 p-1.5 flex flex-row justify-between gap-8 w-full">
+					<div
+						class="flex flex-row flex-1 gap-3 pl-2 py-1 items-center grow whitespace-nowrap min-w-0 shrink-0 text-lg {content.title_class ??
+							''}"
+					>
+						{#if content.title_icon}
+							{@const Icon = content.title_icon}
+							<Icon strokeWidth="2" class="shrink-0" />
+						{/if}
+						<div class="shrink-0">
+							{content.title}
+						</div>
+					</div>
+					<div class="flex aspect-square shrink-0">
+						{#if content.closable}
+							<Button className="aspect-square p-1.5!" click_function={try_to_close}>
+								<X />
+							</Button>
+						{/if}
+					</div>
+				</div>
+			{/if}
+			<div class="p-2 min-h-0 overflow-auto flex flex-col gap-2 {snippet_container_class}">
+				{@render content.snippet(content.snippet_arg)}
+			</div>
+		</div>
+	</div>
+{/if}

control/frontend/src/lib/components/TextInput.svelte

@@ -0,0 +1,134 @@
+<script lang="ts">
+	import { fade } from 'svelte/transition';
+	import { get_shifted_color } from '$lib/ts/stores/ui_behavior';
+	import { onMount } from 'svelte';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+
+	let {
+		current_value = $bindable(),
+		current_valid = $bindable(),
+		className = '',
+		bg = 'bg-stone-750',
+		title,
+		placeholder = '',
+		is_valid_function = null,
+		focused_on_start = false,
+		extension = null,
+		enter_mode = 'none',
+		enter_function = null
+	}: {
+		current_value: string;
+		current_valid: boolean;
+		className?: string;
+		bg?: string;
+		title: string;
+		placeholder?: string;
+		is_valid_function?: ((input: string) => [boolean, string] | Promise<[boolean, string]>) | null;
+		focused_on_start?: boolean;
+		extension?: string | null;
+		enter_mode?: 'none' | 'focus_next' | 'submit';
+		enter_function?: (() => void) | null;
+	} = $props();
+
+	let focus_bg = get_shifted_color(bg, 100);
+	let focused: boolean = $state(false);
+	let current_info = $state('');
+	let input_element: HTMLInputElement;
+
+	async function validate_input() {
+		if (!is_valid_function) return;
+		[current_valid, current_info] = await is_valid_function(current_value.trim());
+	}
+
+	function get_highlighting_string(): string {
+		if (!is_valid_function) return '';
+		if (current_valid) {
+			return 'focus-within:inset-ring-2 focus-within:inset-ring-green-400';
+		} else {
+			return 'inset-ring-2 inset-ring-red-400';
+		}
+	}
+
+	function focus_next_element() {
+		const focusable = Array.from(document.querySelectorAll<HTMLElement>('input')).filter(
+			(el) => !el.hasAttribute('disabled')
+		);
+
+		const index = focusable.indexOf(input_element);
+		if (index !== -1 && index < focusable.length - 1) {
+			focusable[index + 1].focus();
+		}
+	}
+
+	function handle_keydown(event: KeyboardEvent) {
+		if (event.key !== 'Enter') return;
+
+		if (enter_mode === 'focus_next') {
+			event.preventDefault();
+			focus_next_element();
+		} else if (enter_mode === 'submit' && enter_function) {
+			event.preventDefault();
+			enter_function();
+		}
+	}
+
+	onMount(async () => {
+		await validate_input();
+		if (focused_on_start && input_element) input_element.focus();
+
+		selected_display_ids.subscribe(async () => {
+			await validate_input();
+		});
+	});
+</script>
+
+<div class="flex flex-col {className} relative">
+	<div class="flex flex-row justify-between text-sm px-1 gap-4">
+		<div class="text-stone-400">
+			{title}:
+		</div>
+		{#if is_valid_function && focused}
+			<div
+				class={current_valid ? 'text-green-400' : 'text-red-400'}
+				transition:fade={{ duration: 100 }}
+			>
+				{current_info}
+			</div>
+		{/if}
+	</div>
+	<!-- <input
+		bind:this={input_element}
+		bind:value={current_value}
+		bind:focused
+		onkeydown={handle_keydown}
+		type="text"
+		oninput={validate_input}
+		class="{bg} focus:{focus_bg} outline-none py-2 px-3 rounded-xl transition-all duration-100 {get_highlighting_string()}"
+		{placeholder}
+	/> -->
+
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<!-- svelte-ignore a11y_click_events_have_key_events -->
+	<div
+		onclick={() => {
+			input_element.focus();
+		}}
+		class="{bg} focus-within:{focus_bg} flex items-center rounded-xl {get_highlighting_string()} cursor-text"
+	>
+		<input
+			bind:this={input_element}
+			bind:value={current_value}
+			bind:focused
+			onkeydown={handle_keydown}
+			oninput={validate_input}
+			type="text"
+			class=" outline-none py-2 px-3 transition-all duration-100 grow group"
+			{placeholder}
+		/>
+		{#if extension}
+			<span class="pr-3 text-stone-400 select-none pointer-events-none">
+				{extension}
+			</span>
+		{/if}
+	</div>
+</div>

control/frontend/src/lib/index.ts

@@ -1 +0,0 @@
-// place files you want to import through the `$lib` alias in this folder.

control/frontend/src/lib/svgs/RefreshPlay.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-    let {className = ''} = $props<{className?: string}>();
+	let { className = '' }: { className?: string } = $props();
 </script>
 
 <svg

control/frontend/src/lib/ts/api_handler.ts

@@ -0,0 +1,306 @@
+import { notifications } from './stores/notification';
+import {
+	to_display_status,
+	type DisplayStatus,
+	type Inode,
+	type RequestResponse,
+	type ShellCommandResponse,
+	type TreeElement
+} from './types';
+import { dev } from '$app/environment';
+import { get_sanitized_file_url } from './utils';
+
+export async function get_screenshot(ip: string): Promise<Blob | null> {
+	const options = { method: 'PATCH' };
+	const response = await request_display(ip, '/takeScreenshot', options);
+	if (!response.ok || !response.blob) return null;
+	return response.blob;
+}
+
+export async function open_file(ip: string, path_to_file: string): Promise<void> {
+	const options = { method: 'PATCH', headers: { 'content-type': 'application/octet-stream' } };
+	await request_display(ip, get_sanitized_file_url(path_to_file), options);
+}
+
+export async function send_keyboard_input(ip: string, inputs: { key: string; action: 'press' | 'release'}[]): Promise<void> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			inputs
+		})
+	};
+	await request_display(ip, '/keyboardInput', options);
+}
+
+export async function show_html(ip: string, html: string) {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			html: html
+		})
+	};
+	await request_display(ip, '/showHTML', options);
+}
+
+export async function get_file_data(
+	ip: string,
+	path: string
+): Promise<{ folder_element: Inode; date_created: Date }[] | null> {
+	interface FileInfo {
+		name: string;
+		type: string;
+		size: string;
+		created: string;
+	}
+	const command = `cd ".${path}" && find . -maxdepth 1 -mindepth 1 -print0 | while IFS= read -r -d '' f; do
+        typ=$(file -b --mime-type -- "$f")
+        size=$(stat -c '%s' -- "$f")
+        created=$(stat -c '%w' -- "$f")
+        [ "$created" = "-" ] && created=$(stat -c '%y' -- "$f")
+        jq -n --arg name "$f" --arg type "$typ" --arg size "$size" --arg created "$created" \
+            '{name:$name, type:$type, size:($size|tostring), created:$created}' | tr -d '\n'
+        echo
+        done
+    `;
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return null;
+	const json_response = raw_response.json as ShellCommandResponse;
+	if (json_response.exitCode === 0 && json_response.stdout.trim() === '') return [];
+	if (handle_shell_error(ip, json_response, command, true)) return null;
+
+	const response: FileInfo[] = json_response.stdout
+		.trim()
+		.split('\n')
+		.filter(Boolean)
+		.map((line: string) => JSON.parse(line) as FileInfo);
+
+	const folder_element_list: { folder_element: Inode; date_created: Date }[] = [];
+
+	for (const response_element of response) {
+		// filter hidden files (start with '.' -> './.config')
+		if (response_element.name.charAt(2) === '.') continue;
+		const folder_element: Inode = {
+			path: path,
+			name: response_element.name.slice(2), // remove "./"
+			type: response_element.type,
+			size: Number(response_element.size),
+			thumbnail: null
+		};
+		folder_element_list.push({ folder_element, date_created: new Date(response_element.created) });
+	}
+	return folder_element_list;
+}
+
+export async function get_file_tree_data(ip: string, path: string): Promise<TreeElement[] | null> {
+	const command = `cd ".${path}" && tree -Js`;
+	const raw_response = await run_shell_command(ip, command);
+
+	if (!raw_response.ok || !raw_response.json) return null;
+	const json_response = raw_response.json as ShellCommandResponse;
+	if (handle_shell_error(ip, json_response, command, true)) return null;
+
+	const tree_element: TreeElement | null = JSON.parse(json_response.stdout.trim())[0] || null;
+
+	return tree_element?.contents || null;
+}
+
+export async function create_folders(
+	ip: string,
+	path: string,
+	folder_names: string[]
+): Promise<void> {
+	let command = `cd ".${path}"`;
+
+	for (const part of folder_names) {
+		command += ` && mkdir "${part}" && cd "${part}/"`;
+	}
+
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return;
+	const json_response = raw_response.json as ShellCommandResponse;
+	handle_shell_error(ip, json_response, command, true);
+}
+
+export async function rename_file(
+	ip: string,
+	path: string,
+	old_file_name: string,
+	new_file_name: string
+): Promise<void> {
+	const command: string = `cd ".${path}" && mv "${old_file_name}" "${new_file_name}"`;
+
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return;
+	const json_response = raw_response.json as ShellCommandResponse;
+	handle_shell_error(ip, json_response, command, true);
+}
+
+export async function delete_files(
+	ip: string,
+	current_path: string,
+	file_names: string[]
+): Promise<void> {
+	let command: string = `cd ".${current_path}"`;
+	for (const file_name of file_names) {
+		command += ` && rm -r "${file_name}"`;
+	}
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return;
+	const json_response = raw_response.json as ShellCommandResponse;
+	handle_shell_error(ip, json_response, command, true);
+}
+
+export async function show_blackscreen(ip: string): Promise<void> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			html: '<p></p>'
+		})
+	};
+	await request_display(ip, '/showHTML', options);
+}
+
+export async function get_thumbnail_blob(ip: string, path_to_file: string): Promise<Blob | null> {
+	const raw_response = await request_display(
+		ip,
+		get_sanitized_file_url(path_to_file, true),
+		{ method: 'GET' },
+		[415]
+	);
+	if (!raw_response.ok || !raw_response.blob) return null;
+	return raw_response.blob;
+}
+
+export async function ping_ip(ip: string): Promise<DisplayStatus> {
+	const raw_response = await request_control(`/ping?ip=${ip}`, { method: 'GET' });
+	if (!raw_response.ok || !raw_response.json) return null;
+
+	const status = raw_response.json.status;
+	if (typeof status === 'string') {
+		return to_display_status(status);
+	}
+	return null;
+}
+
+async function request_display(
+	ip: string,
+	api_route: string,
+	options: { method: string; headers?: Record<string, string>; body?: string },
+	supress_error_handling_http_codes: number[] = []
+): Promise<RequestResponse> {
+	const url = `http://${ip}:1323/api${api_route}`;
+	return await request(url, options, supress_error_handling_http_codes);
+}
+
+async function request_control(
+	api_route: string,
+	options: { method: string; headers?: Record<string, string>; body?: string }
+): Promise<RequestResponse> {
+	const url = `http://127.0.0.1:8080/api${api_route}`;
+	return await request(url, options);
+}
+
+async function request(
+	url: string,
+	options: { method: string; headers?: Record<string, string>; body?: string },
+	supress_error_handling_http_codes: number[] = []
+): Promise<RequestResponse> {
+	try {
+		const cache_buster = `${url.includes('?') ? '&' : '?'}=${Date.now()}`;
+		if (dev) {
+			console.debug('Sending request: ', url + cache_buster, 'with', options.body ?? 'none');
+		}
+		const response = await fetch(url + cache_buster, options);
+		if (response.ok || supress_error_handling_http_codes.includes(response.status)) {
+			const contentType = response.headers.get('content-type') || '';
+			let request_response: RequestResponse;
+			if (!contentType.includes('application/json')) {
+				const blob: Blob = await response.blob();
+				request_response = { ok: response.ok, http_code: response.status, blob: blob };
+			} else {
+				const json: Record<string, unknown> = await response.json();
+				request_response = { ok: response.ok, http_code: response.status, json: json };
+				if (dev) {
+					console.debug(request_response);
+				}
+			}
+			return request_response;
+		}
+
+		let error_description = url;
+		if (response.headers.get('content-type')?.includes('application/json')) {
+			try {
+				const json: { description: string } = await response.json();
+				error_description += '\n' + json.description;
+			} catch {
+				error_description += '\nCould not parse error description';
+			}
+		}
+		notifications.push('error', `Fehler ${response.status} bei API-Anfrage`, error_description);
+	} catch (error: unknown) {
+		if (error instanceof TypeError && /fetch|NetworkError/i.test(error.message)) {
+			if (dev) {
+				console.warn('Request failed - Is the targeted device online?');
+			}
+		} else {
+			console.error(url, error);
+			notifications.push('error', `Fataler Fehler bei API-Anfrage`, `${url}\nFehler: ${error}`);
+		}
+	}
+	return { ok: false };
+}
+
+function handle_shell_error(
+	ip: string,
+	shell_response: ShellCommandResponse,
+	shell_command: string,
+	command_includs_cd: boolean
+): boolean {
+	if (shell_response.exitCode !== 0) {
+		if (
+			command_includs_cd &&
+			shell_response.stderr &&
+			/bash: line \d+: cd: .+: No such file or directory/.test(shell_response.stderr)
+		) {
+			if (dev) {
+				console.debug('current file_path does not exist on display:', ip);
+			}
+			return true;
+		}
+		console.error(shell_response);
+		notifications.push(
+			'error',
+			`Fehler ${shell_response.exitCode} in API-Shell`,
+			`${ip}\n${shell_command}\nFehler: ${shell_response.stderr}`
+		);
+		return true;
+	}
+	if (shell_response.stdout.trim() === '') return true;
+	return false;
+}
+
+async function run_shell_command(ip: string, command: string): Promise<RequestResponse> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			command: command
+		})
+	};
+	return await request_display(ip, '/shellCommand', options);
+}
+
+export async function shutdown(ip: string): Promise<RequestResponse> {
+	return await run_shell_command(ip, 'shutdown -h now');
+}
+
+export async function startup(mac: string): Promise<RequestResponse> {
+	return await request_control(`/wakeOnLan`, {
+		method: 'POST',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({ mac_address: mac })
+	});
+}

control/frontend/src/lib/ts/database.ts

@@ -0,0 +1,47 @@
+import Dexie, { type Table } from 'dexie';
+import type { Display, DisplayGroup, FileOnDisplay, Inode } from './types';
+
+export class FileDatabase extends Dexie {
+	files!: Table<Inode, [string, string, number, string]>;
+	files_on_display!: Table<FileOnDisplay, [string, string]>;
+	displays!: Table<Display, string>;
+	display_groups!: Table<DisplayGroup, string>;
+
+	constructor() {
+		super('FileDatabase');
+
+		this.version(1).stores({
+			files: `
+        [path+name+size+type],
+        path,
+        name,
+        size,
+        type,
+        thumbnail
+      `,
+			files_on_display: `
+        [display_id+file_primary_key],
+        display_id,
+        file_primary_key,
+        date_created,
+        loading_data
+      `,
+			displays: `
+        id,
+        ip,
+        mac,
+        position,
+        preview,
+        group_id,
+        name,
+        status
+      `,
+			display_groups: `
+        id,
+        position
+      `
+		});
+	}
+}
+
+export const db = new FileDatabase();

control/frontend/src/lib/ts/file_transfer_handler.ts

@@ -0,0 +1,401 @@
+import { db } from './database';
+import { get_display_by_id } from './stores/displays';
+import {
+	get_current_folder_elements,
+	get_file_by_id,
+	remove_all_files_without_display,
+	remove_file_from_display
+} from './stores/files';
+import { notifications } from './stores/notification';
+import { generate_thumbnail } from './stores/thumbnails';
+import {
+	get_file_primary_key,
+	type FileLoadingData,
+	type FileOnDisplay,
+	type FileTransferTask,
+	type Inode,
+	type ShortDisplay
+} from './types';
+import { get_sanitized_file_url, get_uuid, make_valid_name } from './utils';
+
+let is_processing: boolean = false;
+const tasks: FileTransferTask[] = [];
+
+export async function add_upload(
+	file_list: FileList,
+	selected_display_ids: string[],
+	current_file_path: string
+) {
+	if (file_list.length === 0) return console.warn('Upload canceled: no selected files');
+
+	const used_file_names: string[] = await (
+		await get_current_folder_elements(current_file_path, selected_display_ids)
+	).map((e) => e.name);
+
+	for (const file of file_list) {
+		const file_name = generate_valid_file_name(file.name, used_file_names);
+		used_file_names.push(file_name);
+
+		const db_file: Inode = {
+			path: current_file_path,
+			name: file_name,
+			size: file.size,
+			type: file.type,
+			thumbnail: null
+		};
+		const file_primary_key = get_file_primary_key(db_file);
+		await db.files.put(db_file);
+
+		const upload_task_promises = selected_display_ids.map(async (display_id) => {
+			const display_ip = (await get_display_by_id(display_id))?.ip;
+			if (!display_ip) return;
+
+			const db_file_on_display: FileOnDisplay = {
+				display_id,
+				file_primary_key,
+				date_created: new Date(),
+				loading_data: {
+					type: 'upload',
+					percentage: 0,
+					bytes_per_second: 0,
+					seconds_until_finish: -1
+				}
+			};
+			await db.files_on_display.put(db_file_on_display);
+
+			return {
+				data: {
+					type: 'upload' as const,
+					file
+				},
+				display: {
+					id: display_id,
+					ip: display_ip
+				},
+				path: current_file_path,
+				file_name: file_name,
+				file_primary_key,
+				bytes_total: file.size
+			};
+		});
+
+		const upload_tasks = (await Promise.all(upload_task_promises)).filter((e) => !!e);
+		tasks.push(...upload_tasks);
+	}
+
+	await start_task_processing();
+}
+
+export async function add_sync(selected_file_id: string, selected_display_ids: string[]) {
+	const file_data = await find_file_data_on_active_selected_display(
+		selected_file_id,
+		selected_display_ids
+	);
+	if (!file_data) return console.warn('Sync canceled: no file_data');
+
+	tasks.push({
+		data: {
+			type: 'sync',
+			destination_displays: file_data.short_displays_without_file
+		},
+		display: file_data.short_display_with_file,
+		path: file_data.file.path,
+		file_name: file_data.file.name,
+		file_primary_key: selected_file_id,
+		bytes_total: file_data.file.size
+	});
+
+	await db.files_on_display.update([file_data.short_display_with_file.id, selected_file_id], {
+		loading_data: {
+			type: 'sync_download',
+			percentage: 0,
+			bytes_per_second: 0,
+			seconds_until_finish: -1
+		}
+	});
+	const display_ids_without_file = file_data.short_displays_without_file.map((d) => d.id);
+	await db.files_on_display
+		.where('file_primary_key')
+		.equals(selected_file_id)
+		.filter((e) => display_ids_without_file.includes(e.display_id))
+		.modify({
+			loading_data: {
+				type: 'sync_upload',
+				percentage: 0,
+				bytes_per_second: 0,
+				seconds_until_finish: -1
+			}
+		});
+	await start_task_processing();
+}
+
+async function find_file_data_on_active_selected_display(
+	selected_file_id: string,
+	selected_display_ids: string[]
+): Promise<{
+	file_on_display: FileOnDisplay;
+	file: Inode;
+	short_display_with_file: ShortDisplay;
+	short_displays_without_file: ShortDisplay[];
+} | null> {
+	const active_selected_displays = await db.displays
+		.where('id')
+		.anyOf(selected_display_ids)
+		.filter((d) => d.status === 'app_online')
+		.toArray();
+	const active_selected_display_ids = active_selected_displays.map((d) => d.id);
+
+	const fods = await db.files_on_display
+		.where('file_primary_key')
+		.equals(selected_file_id)
+		.filter((e) => active_selected_display_ids.includes(e.display_id))
+		.toArray();
+	if (fods.length < 0) return null;
+	const fod_with_file = fods[0];
+	const display_ids_with_file = fods.map((f) => f.display_id);
+
+	const ip = active_selected_displays.find((e) => e.id === fod_with_file.display_id)?.ip;
+	if (!ip) return null;
+
+	const short_displays_without_file: ShortDisplay[] = selected_display_ids
+		.filter((d) => !display_ids_with_file.includes(d))
+		.map((id) => {
+			const ip = active_selected_displays.find((d) => d.id === id)?.ip;
+			if (!ip) return null;
+			return { id, ip };
+		})
+		.filter((sd) => !!sd);
+
+	const inode = await get_file_by_id(selected_file_id);
+	if (!inode) return null;
+
+	return {
+		file_on_display: fod_with_file,
+		file: inode,
+		short_display_with_file: { id: fod_with_file.display_id, ip },
+		short_displays_without_file
+	};
+}
+
+function generate_valid_file_name(original_file_name: string, used_file_names: string[]): string {
+	const regex = /\s\((\d{1,3})\)$/;
+
+	let name: string = make_valid_name(original_file_name);
+	while (used_file_names.includes(name)) {
+		const last_dot = name.lastIndexOf('.');
+		let name_without_extension = last_dot > 0 ? name.slice(0, last_dot) : name;
+		const extension = last_dot > 0 ? name.slice(last_dot) : '';
+		if (!regex.test(name_without_extension)) {
+			name_without_extension += ' (1)';
+		} else {
+			const match = name_without_extension.match(regex);
+			const current_number: number = match ? Number(match[1]) : 0;
+			name_without_extension = name_without_extension.replace(regex, ` (${current_number + 1})`);
+		}
+		name = name_without_extension + extension;
+	}
+	return name;
+}
+
+async function upload(task: FileTransferTask): Promise<void> {
+	const task_data = task.data;
+	if (task_data.type !== 'upload' || !task_data.file) return console.warn('Task cancelled: wrong task type:', task);
+
+	await upload_file_via_xhr(task, task.display, task_data.file);
+
+	// Generate Thumbnail if not done already
+	setTimeout(async () => {
+		const inode_element: Inode | undefined = await db.files.get(
+			JSON.parse(task.file_primary_key) as [string, string, number, string]
+		);
+		if (!!inode_element && inode_element.thumbnail === null) {
+			await generate_thumbnail(task.display.ip, task.path, inode_element);
+		}
+	}, 10);
+}
+
+export async function sync(task: FileTransferTask) {
+	if (task.data.type !== 'sync') return console.warn('Task cancelled: wrong task type:', task);
+
+	const hasOPFS =
+		typeof navigator !== 'undefined' &&
+		'storage' in navigator &&
+		'getDirectory' in navigator.storage;
+	if (!hasOPFS) {
+		return show_error(
+			task,
+			'OPFS (navigator.storage.getDirectory) nicht verfügbar – bitte Chromium/Edge/Chrome nutzen.'
+		);
+	}
+
+	const temp_name = `sync-${get_uuid()}.tmp`;
+
+	try {
+		// 01 - download file to disk (in browser, not for user)
+		const url = `http://${task.display.ip}:1323/api${get_sanitized_file_url(task.path + task.file_name)}`;
+		const fetch_source = await fetch(url, { method: 'GET' });
+		if (!fetch_source.ok || !fetch_source.body)
+			return show_error(task, `HTTP ${fetch_source.status}`);
+
+		const dir = await navigator.storage.getDirectory();
+		const file_handle = await dir.getFileHandle(temp_name, { create: true });
+		const writable = await file_handle.createWritable();
+		const reader = fetch_source.body.getReader();
+
+		const start_time = new Date();
+		while (true) {
+			const { value, done } = await reader.read();
+			if (done) break;
+			if (!value) continue;
+
+			await update_current_loading_data('sync_download', task, value.byteLength, start_time);
+			await writable.write(value);
+		}
+		await writable.close();
+
+		// 02 - send downloaded file to every destination_display
+		const temp_file = await file_handle.getFile(); 
+
+		for (const current_short_display of task.data.destination_displays) {
+			await upload_file_via_xhr(task, current_short_display, temp_file);
+		}
+
+		await dir.removeEntry(temp_name);
+	} catch (e) {
+		show_error(task, String(e));
+	}
+}
+
+export async function download_file(selected_file_id: string, selected_display_ids: string[]) {
+	const file_data = await find_file_data_on_active_selected_display(
+		selected_file_id,
+		selected_display_ids
+	);
+	if (!file_data || file_data.file.type === 'inode/directory') return console.warn('Download cancelled: is folder');
+
+	try {
+		const url = `http://${file_data.short_display_with_file.ip}:1323/api${get_sanitized_file_url(file_data.file.path + file_data.file.name)}`;
+
+		const a = document.createElement('a');
+		a.href = url;
+		a.download = file_data.file.name; // Hint für den Browser (Server-Header ist trotzdem besser)
+		a.rel = 'noopener';
+		document.body.appendChild(a);
+		a.click();
+		a.remove();
+	} catch (e) {
+		notifications.push(
+			'error',
+			'Fehler beim Dateidownload',
+			`Datei: "${file_data.file.name}", Display-IP: ${file_data.short_display_with_file.ip}\nFehler: ${e}`
+		);
+	}
+}
+
+async function start_task_processing() {
+	if (!is_processing) {
+		is_processing = tasks.length !== 0;
+		await start_task_loop();
+	}
+}
+
+async function start_task_loop() {
+	while (tasks.length > 0) {
+		console.log('NOCH', tasks.length, 'ZU TUN');
+		const current_task = tasks[0];
+		if (current_task.data.type === 'upload') {
+			await upload(current_task);
+		}
+		else if (current_task.data.type === 'sync') {
+			await sync(current_task);
+		}
+		tasks.shift(); // Remove current_task from tasks
+	}
+	is_processing = false;
+}
+
+async function upload_file_via_xhr(task: FileTransferTask, current_short_display: ShortDisplay, current_file: File) {
+	const start_time = new Date();
+
+	return new Promise<void>((resolve) => {
+		const xhr = new XMLHttpRequest();
+		xhr.open(
+			'POST',
+			`http://${current_short_display.ip}:1323/api${get_sanitized_file_url(task.path + task.file_name)}`,
+			true
+		);
+		xhr.setRequestHeader('content-type', 'application/octet-stream');
+
+		xhr.upload.onprogress = (e) => {
+			const apply = async () => {
+				await update_current_loading_data(task.data.type === 'upload' ? 'upload' : 'sync_upload', task, e.loaded, start_time, current_short_display.id);
+			};
+			apply();
+		};
+
+		xhr.onerror = async (e: ProgressEvent) => {
+			await show_error(task, e);
+			resolve();
+		};
+
+		xhr.onreadystatechange = async () => {
+			if (xhr.readyState === 4) {
+				if (xhr.status == 200) {
+					await db.files_on_display.update([current_short_display.ip, task.file_primary_key], {
+						loading_data: null
+					}); // TODO: Stattdessen update machen und gucken, ob die Datei wirklich da ist
+				} else {
+					await show_error(task, `HTTP ${xhr.status}`);
+				}
+				resolve();
+			}
+		};
+
+		xhr.send(current_file);
+	})
+}
+
+async function update_current_loading_data(type: FileLoadingData['type'], task: FileTransferTask, current_bytes: number, start_time: Date, other_display_id: string | null = null) {
+	const current_percentage = task.bytes_total > 0 ? Math.round((current_bytes / task.bytes_total) * 100) : 1;
+	const prognosed_data = get_prognosed_data(start_time, current_bytes, task.bytes_total);
+
+	await db.files_on_display.update([other_display_id ? other_display_id : task.display.id, task.file_primary_key], {
+		loading_data: {
+			type,
+			percentage: current_percentage,
+			bytes_per_second: prognosed_data.bytes_per_second,
+			seconds_until_finish: prognosed_data.seconds_until_finish
+		}
+	});
+}
+
+function get_prognosed_data(
+	start_time: Date,
+	bytes_done: number,
+	bytes_total: number
+): { bytes_per_second: number; seconds_until_finish: number } {
+	const diff_seconds = (Date.now() - start_time.getTime()) / 1000;
+	const bytes_per_second = bytes_done / diff_seconds;
+
+	const seconds_until_finish = bytes_total / bytes_per_second;
+	return { bytes_per_second, seconds_until_finish };
+}
+
+async function show_error(task: FileTransferTask, error: ProgressEvent | string) {
+	const task_data = task.data;
+	console.error('Error in File-Transfer-Handler:', error, task);
+	notifications.push(
+		'error',
+		`Fehler beim ${task_data.type === 'upload' ? 'Dateiupload' : 'Sychronisieren von Dateien'}`,
+		`Datei: "${task.file_name}", Display-IP: ${task.display.ip}\nFehler: ${error}`
+	);
+	if (task_data.type === 'upload') {
+		await remove_file_from_display(task.display.id, task.file_primary_key);
+		await remove_all_files_without_display();
+	} else if (task_data.type === 'sync') {
+		for (const display_id of task_data.destination_displays.map((e) => e.id)) {
+			await remove_file_from_display(display_id, task.file_primary_key);
+		}
+		await remove_all_files_without_display();
+	}
+}

control/frontend/src/lib/ts/main.ts

@@ -0,0 +1,34 @@
+import { screenshot_loop } from './stores/displays';
+import { ping_ip } from './api_handler';
+import type { Display } from './types';
+import { update_folder_elements_recursively } from './stores/files';
+import { db } from './database';
+
+const update_display_status_interval_seconds = 20;
+
+export async function on_start() {
+	await db.files.clear();
+	await db.files_on_display.clear();
+	await update_all_display_status();
+	await setInterval(update_all_display_status, update_display_status_interval_seconds * 1000);
+}
+
+async function update_all_display_status() {
+	const all_displays: Display[] = await db.displays.toArray();
+	for (const display of all_displays) {
+		const new_status = await ping_ip(display.ip);
+		if (new_status === null && display.status !== null) continue;
+		if (new_status === 'app_online' && display.status !== 'app_online') {
+			on_display_start(display);
+		}
+		if (new_status !== display.status) {
+			display.status = new_status;
+			await db.displays.put(display); // save
+		}
+	}
+}
+
+async function on_display_start(display: Display) {
+	await update_folder_elements_recursively(display, '/');
+	await screenshot_loop(display.id);
+}

control/frontend/src/lib/ts/stores/displays.ts

@@ -0,0 +1,197 @@
+import { get } from 'svelte/store';
+import type { Display, DisplayGroup, DisplayStatus } from '../types';
+import { is_selected, select, selected_display_ids } from './select';
+import { get_uuid, image_content_hash } from '../utils';
+import { get_screenshot } from '../api_handler';
+import { delete_and_deselect_unique_files_from_display } from './files';
+import { db } from '../database';
+
+export async function is_display_name_taken(name: string): Promise<boolean> {
+	const exists = await db.displays.where('name').equals(name).first();
+	return !!exists;
+}
+
+export async function add_display(
+	ip: string,
+	mac: string | null,
+	name: string,
+	status: DisplayStatus
+) {
+	if (await is_display_name_taken(name)) return;
+	const new_id = get_uuid();
+	const group = await db.display_groups.toCollection().first();
+	let group_id: string;
+	if (group) {
+		group_id = group.id;
+	} else {
+		group_id = get_uuid();
+		await db.display_groups.put({ id: group_id, position: 0 });
+	}
+	const element_count_in_group = (await db.displays.where('group_id').equals(group_id).toArray())
+		.length;
+	await db.displays.put({
+		id: new_id,
+		ip,
+		mac,
+		position: element_count_in_group,
+		preview: { currently_updating: false, url: null },
+		group_id: group_id,
+		name,
+		status
+	});
+}
+
+export async function edit_display_data(
+	display_id: string,
+	ip: string,
+	mac: string | null,
+	name: string
+) {
+	let display = await db.displays.get(display_id);
+	if (!display) return;
+	display = { ...display, ip: ip, mac: mac, name: name };
+	await db.displays.put(display); // save
+}
+
+export async function remove_display(display_id: string) {
+	select(selected_display_ids, display_id, 'deselect');
+	await delete_and_deselect_unique_files_from_display(display_id);
+
+	const group_id = (await db.displays.get(display_id))?.group_id;
+	await db.displays.delete(display_id);
+	if (group_id && (await db.displays.where('group_id').equals(group_id).toArray()).length === 0) {
+		await db.display_groups.delete(group_id); // delete empty group
+	}
+}
+
+export async function all_displays_of_group_selected(
+	display_group_id: string,
+	current_selected_displays: string[]
+): Promise<boolean> {
+	const displays_of_group: Display[] = await db.displays
+		.where('group_id')
+		.equals(display_group_id)
+		.toArray();
+	if (displays_of_group.length === 0) return false;
+
+	for (const display of displays_of_group) {
+		if (!is_selected(display.id, current_selected_displays)) {
+			return false;
+		}
+	}
+	return true;
+}
+
+export async function set_select_for_group(display_group_id: string, new_value: boolean) {
+	const displays_of_group: Display[] = await db.displays
+		.where('group_id')
+		.equals(display_group_id)
+		.toArray();
+	for (const display of displays_of_group) {
+		let action: string;
+		if (new_value === true) {
+			action = 'select';
+		} else {
+			action = 'deselect';
+		}
+
+		select(selected_display_ids, display.id, action as 'toggle' | 'select' | 'deselect');
+	}
+}
+
+export async function get_display_by_id(display_id: string): Promise<Display | null> {
+	return (await db.displays.get(display_id)) ?? null;
+}
+
+export async function screenshot_loop(display_id: string, initial_retry_count: number = 5) {
+	const display = await db.displays.get(display_id);
+	if (!display || display.preview.currently_updating) return;
+
+	display.preview.currently_updating = true;
+	await db.displays.update(display.id, { preview: display.preview });
+
+	let last_hash: number | null = null;
+
+	let retry_count = initial_retry_count;
+	while (retry_count > 0) {
+		retry_count -= 1;
+
+		const new_blob = await get_screenshot(display.ip);
+		if (!new_blob) {
+			display.preview = { currently_updating: false, url: null };
+			await db.displays.update(display.id, { preview: display.preview });
+			return;
+		}
+		const new_hash = await image_content_hash(new_blob);
+		if (last_hash !== new_hash) {
+			if (display.preview.url) {
+				URL.revokeObjectURL(display.preview.url);
+			}
+
+			last_hash = new_hash;
+			display.preview.url = URL.createObjectURL(new_blob);
+			await db.displays.update(display.id, { preview: display.preview });
+
+			retry_count = initial_retry_count;
+		}
+
+		await new Promise((resolve) => setTimeout(resolve, 2000)); // sleep 2s
+	}
+
+	display.preview.currently_updating = false;
+	await db.displays.update(display.id, { preview: display.preview });
+}
+
+export async function run_on_all_selected_displays(
+	run_function: (display: Display) => void | Promise<void>,
+	update_screenshot_afterwards: boolean = true,
+	ignore_offline: boolean = true
+) {
+	const maybe_displays: (Display | null)[] = await Promise.all(
+		// fails when only a single promis fails
+		get(selected_display_ids).map(async (id) => await get_display_by_id(id))
+	);
+	const displays: Display[] = maybe_displays.filter((d): d is Display => d !== null);
+
+	Promise.all(
+		displays.map(async (display) => {
+			if (!display || (ignore_offline && display.status === 'host_offline')) return;
+			await run_function(display);
+			if (update_screenshot_afterwards) {
+				await screenshot_loop(display.id);
+			}
+		})
+	);
+}
+
+export async function get_display_groups(): Promise<DisplayGroup[]> {
+	return await db.display_groups.orderBy('position').toArray();
+}
+
+export async function get_display_ids_in_group(display_group_id: string): Promise<Display[]> {
+	const displays: Display[] = await db.displays
+		.where('group_id')
+		.equals(display_group_id)
+		.sortBy('position');
+	return displays;
+}
+
+export async function set_new_display_order(new_ordered_items: Display[]) {
+	for (let i = 0; i < new_ordered_items.length; i++) {
+		new_ordered_items[i].position = i;
+		await db.displays.put(new_ordered_items[i]);
+	}
+}
+
+export async function set_new_display_group_order(new_ordered_items: DisplayGroup[]) {
+	for (let i = 0; i < new_ordered_items.length; i++) {
+		new_ordered_items[i].position = i;
+		await db.display_groups.put(new_ordered_items[i]);
+	}
+}
+
+setTimeout(add_testing_displays, 0);
+async function add_testing_displays() {
+	await add_display('127.0.0.1', '00:1A:2B:3C:4D:5E', 'PC', 'host_offline');
+	// await add_display("192.168.178.111", "D4:81:D7:C0:DF:3C", "Laptop", "host_offline");
+}

control/frontend/src/lib/ts/stores/files.ts

@@ -0,0 +1,410 @@
+import { get, writable, type Writable } from 'svelte/store';
+import {
+	get_file_primary_key,
+	type Display,
+	type FileOnDisplay,
+	type Inode,
+	type TreeElement
+} from '../types';
+import { get_display_by_id } from './displays';
+import { is_selected, select, selected_display_ids, selected_file_ids } from './select';
+import { create_folders, get_file_data, get_file_tree_data } from '../api_handler';
+import { deactivate_old_thumbnail_urls, generate_thumbnail } from './thumbnails';
+import { db } from '../database';
+
+export const current_file_path: Writable<string> = writable<string>('/');
+
+export async function change_file_path(new_path: string) {
+	current_file_path.update(() => {
+		return new_path;
+	});
+	selected_file_ids.update(() => {
+		return [];
+	});
+
+	deactivate_old_thumbnail_urls();
+
+	const displays = await db.displays.toArray();
+
+	for (const display of displays) {
+		const changed_paths = await get_changed_directory_paths(display, new_path);
+		if (!changed_paths) continue;
+		console.debug('Update file system from', display.name, ':', changed_paths);
+		for (const path of changed_paths) {
+			await update_folder_elements_recursively(display, path);
+		}
+	}
+}
+
+export async function delete_and_deselect_unique_files_from_display(display_id: string) {
+	const files_on_display = await db.files_on_display
+		.where('display_id')
+		.equals(display_id)
+		.toArray();
+	for (const file of files_on_display) {
+		await remove_file_from_display(display_id, file.file_primary_key);
+	}
+	await remove_all_files_without_display();
+}
+
+export async function remove_file_from_display(display_id: string, file_primary_key: string) {
+	const found = await db.files_on_display.get([display_id, file_primary_key]);
+	if (!found) return;
+	select(selected_file_ids, file_primary_key, 'deselect');
+	await db.files_on_display.delete([display_id, file_primary_key]);
+}
+
+export async function remove_all_files_without_display() {
+	const existing_file_id_strings: string[] = (await db.files_on_display
+		.orderBy('file_primary_key')
+		.uniqueKeys()) as string[];
+	const existing_file_id_objects: [string, string, number, string][] = existing_file_id_strings.map(
+		(e) => JSON.parse(e) as [string, string, number, string]
+	);
+	await db.files.where('[path+name+size+type]').noneOf(existing_file_id_objects).delete();
+}
+
+export async function update_current_folder_on_selected_displays() {
+	selected_file_ids.update(() => {
+		return [];
+	});
+	const current_path = get(current_file_path);
+
+	for (const display of await db.displays.where('id').anyOf(get(selected_display_ids)).toArray()) {
+		await update_folder_elements_recursively(display, current_path);
+	}
+}
+
+export async function get_missing_colliding_display_ids(
+	file: Inode,
+	selected_display_ids: string[]
+): Promise<{ missing: string[]; colliding: string[] }> {
+	const missing: string[] = await get_display_ids_where_file_is_missing(file, selected_display_ids);
+
+	const colliding: string[] = [];
+	const colliding_files = await db.files
+		.where('[path+name]')
+		.equals([file.path, file.name])
+		.filter((e) => e.size !== file.size || e.type !== file.type)
+		.toArray();
+	for (const colliding_file of colliding_files) {
+		colliding.push(
+			...(await get_display_ids_where_file_is_missing(colliding_file, selected_display_ids))
+		);
+	}
+
+	return { missing, colliding };
+}
+
+async function get_display_ids_where_file_is_missing(
+	file: Inode,
+	selected_display_ids: string[]
+): Promise<string[]> {
+	const file_primary_key = get_file_primary_key(file);
+	const files_on_selected_displays = await db.files_on_display
+		.where('file_primary_key')
+		.equals(file_primary_key)
+		.filter((e) => selected_display_ids.includes(e.display_id))
+		.toArray();
+	return selected_display_ids.filter(
+		(id) => !files_on_selected_displays.some((item) => item.display_id === id)
+	);
+}
+
+export async function get_displays_where_path_exists(
+	path: string,
+	selected_display_ids: string[],
+	invert: boolean
+): Promise<Display[]> {
+	if (path === '/') return [];
+	const last_path_part =
+		path
+			.slice(0, path.length - 1)
+			.split('/')
+			.at(-1) ?? '';
+	const path_without_last_part = path.slice(0, path.length - (last_path_part.length + 1));
+
+	const folders_of_current_path = await db.files
+		.where('[path+name+type]')
+		.equals([path_without_last_part, last_path_part, 'inode/directory'])
+		.first();
+	if (!folders_of_current_path)
+		return await db.displays.where('id').anyOf(selected_display_ids).toArray();
+	const folder_primary_key = get_file_primary_key(folders_of_current_path);
+
+	const display_ids = selected_display_ids.filter(async (display_id) => {
+		const folder_exists = await db.files_on_display.get([display_id, folder_primary_key]);
+		if (invert) {
+			return !folder_exists;
+		} else {
+			return folder_exists;
+		}
+	});
+
+	return (await db.displays.bulkGet(display_ids)).filter((e) => e !== undefined);
+}
+
+async function get_changed_directory_paths(
+	display: Display,
+	file_path: string
+): Promise<string[] | null> {
+	const current_folder = await get_file_tree_data(display.ip, file_path);
+	const directory_strings = await get_recursive_changed_directory_paths(
+		display,
+		file_path,
+		current_folder
+	);
+	if (directory_strings.size === 0) return null;
+	const directory_strings_array = [...directory_strings];
+	return directory_strings_array.filter(
+		(e) => !directory_strings_array.some((f) => f !== e && f.startsWith(e))
+	);
+}
+
+async function get_recursive_changed_directory_paths(
+	display: Display,
+	current_file_path: string,
+	current_folder_elements: TreeElement[] | null
+): Promise<Set<string>> {
+	const files_folder: Inode[] = await db.files.where('path').equals(current_file_path).toArray();
+	if (
+		(!files_folder || files_folder.length === 0) &&
+		(!current_folder_elements || current_folder_elements.length === 0)
+	) {
+		return new Set([]); // no data -> no update needed
+	} else if (
+		!files_folder ||
+		!current_folder_elements ||
+		current_folder_elements.length !== files_folder.length
+	) {
+		return new Set([current_file_path]); // existing data does not match new data -> update
+	}
+
+	const has_changed: Set<string> = new Set();
+	for (const tree_folder_element of current_folder_elements) {
+		const folder_element = files_folder.find((e) => e.name === tree_folder_element.name);
+		if (
+			!folder_element ||
+			(tree_folder_element.type !== 'directory' && folder_element.size !== tree_folder_element.size)
+		) {
+			return new Set([current_file_path]);
+		}
+
+		if (tree_folder_element.type === 'directory' && tree_folder_element.contents) {
+			const new_file_path = current_file_path + tree_folder_element.name + '/';
+			for (const string of await get_recursive_changed_directory_paths(
+				display,
+				new_file_path,
+				tree_folder_element.contents
+			)) {
+				has_changed.add(string);
+			}
+		}
+	}
+	return has_changed;
+}
+
+export async function update_folder_elements_recursively(
+	display: Display,
+	file_path: string = '/'
+): Promise<void> {
+	const new_folder_elements = await get_file_data(display.ip, file_path);
+	if (!new_folder_elements) return;
+
+	const existing_file_keys_on_display_in_path: [string, string, number, string][] = (
+		await db.files_on_display.where('display_id').equals(display.id).toArray()
+	).map((e) => JSON.parse(e.file_primary_key) as [string, string, number, string]);
+	const existing_files_on_display_in_path: Inode[] = await db.files
+		.where('[path+name+size+type]')
+		.anyOf(existing_file_keys_on_display_in_path)
+		.filter((e) => e.path === file_path)
+		.toArray();
+
+	const diff = get_folder_elements_difference(
+		existing_files_on_display_in_path,
+		new_folder_elements
+	);
+
+	if (diff.new.length > 0) {
+		// Add new Folder-Elements
+		for (const new_element of diff.new) {
+			await db.files.put(new_element.folder_element);
+			const file_on_display: FileOnDisplay = {
+				display_id: display.id,
+				file_primary_key: get_file_primary_key(new_element.folder_element),
+				loading_data: null,
+				date_created: new_element.date_created
+			};
+			await db.files_on_display.put(file_on_display);
+
+			if (new_element.folder_element.type === 'inode/directory') {
+				await update_folder_elements_recursively(
+					display,
+					file_path + new_element.folder_element.name + '/'
+				);
+			}
+		}
+
+		// Generate Thumbnails:
+		setTimeout(async () => {
+			for (const new_element of diff.new) {
+				await generate_thumbnail(display.ip, file_path, new_element.folder_element);
+			}
+		}, 0);
+	}
+	if (diff.deleted.length > 0) {
+		// Remove old Folder-Elements
+		for (const old_element of diff.deleted) {
+			remove_file_from_display(display.id, get_file_primary_key(old_element));
+		}
+		await remove_all_files_without_display();
+	}
+}
+
+function get_folder_elements_difference(
+	old_elements: Inode[],
+	new_elements: { folder_element: Inode; date_created: Date }[]
+): { deleted: Inode[]; new: { folder_element: Inode; date_created: Date }[] } {
+	const old_keys = new Set(old_elements.map((e) => get_file_primary_key(e)));
+	const new_keys = new Set(new_elements.map((e) => get_file_primary_key(e.folder_element)));
+
+	const only_in_old = old_elements.filter((e) => !new_keys.has(get_file_primary_key(e)));
+	const only_in_new = new_elements.filter(
+		(e) => !old_keys.has(get_file_primary_key(e.folder_element))
+	);
+	return { deleted: only_in_old, new: only_in_new };
+}
+
+export async function get_current_folder_elements(
+	current_file_path: string,
+	selected_display_ids: string[]
+): Promise<Inode[]> {
+	const existing_file_keys_on_selected_displays: [string, string, number, string][] = (
+		await db.files_on_display.where('display_id').anyOf(selected_display_ids).toArray()
+	).map((e) => JSON.parse(e.file_primary_key) as [string, string, number, string]);
+	const existing_files_on_selected_displays_in_path: Inode[] = await db.files
+		.where('[path+name+size+type]')
+		.anyOf(existing_file_keys_on_selected_displays)
+		.filter((e) => e.path === current_file_path)
+		.toArray();
+
+	return sort_files(existing_files_on_selected_displays_in_path);
+}
+
+function sort_files(files: Inode[]) {
+	files.sort((a, b) => {
+		const isDirA = a.type === 'inode/directory';
+		const isDirB = b.type === 'inode/directory';
+
+		// Ordner zuerst
+		if (isDirA && !isDirB) return -1;
+		if (!isDirA && isDirB) return 1;
+
+		// Danach alphabetisch nach name (case-insensitive)
+		const nameCompare = a.name.localeCompare(b.name, undefined, { sensitivity: 'base' });
+		if (nameCompare !== 0) return nameCompare;
+
+		return -1;
+	});
+	return files;
+}
+
+export async function get_file_by_id(
+	file_primary_key: string,
+	only_from_selected_displays: boolean = false
+): Promise<Inode | null> {
+	const file = (await db.files.get(JSON.parse(file_primary_key))) ?? null;
+	if (!file || !only_from_selected_displays) {
+		return file;
+	} else {
+		const exist_on_selected_display = !!(await db.files_on_display
+			.where('file_primary_key')
+			.equals(file_primary_key)
+			.filter((e) => get(selected_display_ids).includes(e.display_id))
+			.first());
+		return exist_on_selected_display ? file : null;
+	}
+}
+
+export async function run_for_selected_files_on_selected_displays(
+	action: (ip: string, file_names: string[]) => Promise<void>
+): Promise<void> {
+	for (const display_id of get(selected_display_ids)) {
+		const file_key_strings_on_display: string[] = (
+			await db.files_on_display.where('display_id').equals(display_id).toArray()
+		).map((e) => e.file_primary_key);
+
+		const selected_file_keys_on_display: [string, string, number, string][] =
+			file_key_strings_on_display
+				.filter((primary_key_string) => is_selected(primary_key_string, get(selected_file_ids)))
+				.map(
+					(primary_key_string) => JSON.parse(primary_key_string) as [string, string, number, string]
+				);
+		if (selected_file_keys_on_display.length === 0) continue;
+
+		const selected_file_names_on_display: string[] = (
+			await db.files.where('[path+name+size+type]').anyOf(selected_file_keys_on_display).toArray()
+		).map((e) => e.name);
+
+		const display = await get_display_by_id(display_id);
+		if (!display) continue;
+
+		await action(display.ip, selected_file_names_on_display);
+	}
+}
+
+export async function create_folder_on_all_selected_displays(
+	folder_name: string,
+	path: string,
+	selected_display_ids: string[]
+): Promise<void> {
+	const path_parts = path
+		.slice(1, path.length - 1)
+		.split('/')
+		.filter((e) => e.length !== 0);
+	let remaining_display_ids = [...selected_display_ids];
+
+	const getDisplaysForPath = async (currentPath: string): Promise<Display[]> => {
+		if (currentPath === '/') {
+			const displays = await db.displays.bulkGet(remaining_display_ids);
+			return displays.filter((d): d is Display => !!d);
+		}
+		return get_displays_where_path_exists(currentPath, remaining_display_ids, false);
+	};
+
+	for (let depth = path_parts.length; depth >= 0 && remaining_display_ids.length; depth--) {
+		const currentPath = depth === 0 ? '/' : `/${path_parts.slice(0, depth).join('/')}/`;
+
+		const displays = await getDisplaysForPath(currentPath);
+		if (!displays.length) continue;
+
+		const folders_to_create = [...path_parts.slice(depth), folder_name];
+		for (const display of displays) {
+			await create_folders(display.ip, currentPath, folders_to_create);
+			remaining_display_ids = remaining_display_ids.filter((id) => id !== display.id);
+		}
+	}
+}
+
+export async function get_date_mapping(file_primary_key: string): Promise<Record<string, Date>> {
+	const same_file_on_displays: FileOnDisplay[] = await db.files_on_display
+		.where('file_primary_key')
+		.equals(file_primary_key)
+		.toArray();
+	const displays_with_that_file: Display[] = await db.displays
+		.where('id')
+		.anyOf(same_file_on_displays.map((e) => e.display_id))
+		.toArray();
+
+	const out: Record<string, Date> = {};
+	for (const current_file_on_display of same_file_on_displays) {
+		const current_name = displays_with_that_file.find(
+			(e) => e.id === current_file_on_display.display_id
+		)?.name;
+		if (!current_name) continue;
+		const current_date = current_file_on_display.date_created;
+		out[current_name] = current_date;
+	}
+
+	return out;
+}

control/frontend/src/lib/ts/stores/notification.ts

@@ -0,0 +1,28 @@
+import { writable } from "svelte/store";
+
+export type Notification = {
+  id: number;
+  title: string;
+  message: string;
+  duration: number;
+  className: string;
+  type?: "error" | "success" | "info";
+};
+
+function createNotifications() {
+  const { subscribe, update } = writable<Notification[]>([]);
+
+  function push(type: "error" | "success" | "info", title: string, message: string = "", className: string = "") {
+    const id = Date.now();
+    const duration = type === "error" ? 16000 : 4000;
+    update((n) => [...n, { id, title, message, duration, className, type }]);
+    setTimeout(() => {
+      update((n) => n.filter((x) => x.id !== id));
+    }, duration);
+  }
+  const remove = (id: number) => update(n => n.filter(x => x.id !== id));
+
+  return { subscribe, push, remove };
+}
+
+export const notifications = createNotifications();

control/frontend/src/lib/ts/stores/select.ts

@@ -0,0 +1,26 @@
+import { writable, type Writable } from 'svelte/store';
+
+export const selected_file_ids: Writable<string[]> = writable<string[]>([]); // JSON.stringify([string, string, number, string])
+export const selected_display_ids: Writable<string[]> = writable<string[]>([]);
+
+export function select(
+	selected_ids: Writable<string[]>,
+	id: string,
+	action: 'toggle' | 'select' | 'deselect'
+) {
+	selected_ids.update((all_ids: string[]) => {
+		if (all_ids.includes(id)) {
+			const index = all_ids.indexOf(id);
+			if (index > -1 && action !== 'select') {
+				all_ids.splice(index, 1);
+			}
+		} else if (action !== 'deselect') {
+			all_ids.push(id);
+		}
+		return all_ids;
+	});
+}
+
+export function is_selected(id: string, selected_ids: string[]): boolean {
+	return selected_ids.includes(id);
+}

control/frontend/src/lib/ts/stores/thumbnails.ts

@@ -0,0 +1,45 @@
+import { get, writable, type Writable } from 'svelte/store';
+import { get_thumbnail_blob } from '../api_handler';
+import { type Inode } from '../types';
+import { db } from '../database';
+import { get_file_type } from '../utils';
+import { get_file_by_id } from './files';
+
+export const active_thumbnail_urls: Writable<string[]> = writable<string[]>([]);
+
+export async function generate_thumbnail(
+	display_ip: string,
+	path: string,
+	folder_element: Inode
+): Promise<void> {
+	const supported_file_type = get_file_type(folder_element);
+	if (!supported_file_type) return;
+
+	const thumbnail_blob = await get_thumbnail_blob(display_ip, path + folder_element.name);
+	if (!thumbnail_blob) return;
+
+	folder_element.thumbnail = thumbnail_blob;
+
+	await db.files.put(folder_element); // save
+}
+
+export async function get_thumbnail_url(file_primary_key: string): Promise<string | null> {
+	const file: Inode | null = await get_file_by_id(file_primary_key);
+	if (!file || !file.thumbnail) return null;
+	const new_url = URL.createObjectURL(file.thumbnail);
+	active_thumbnail_urls.update((current: string[]) => {
+		current.push(new_url);
+		return current;
+	});
+	return new_url;
+}
+
+export function deactivate_old_thumbnail_urls() {
+	const current_urls = get(active_thumbnail_urls);
+	for (const url of current_urls) {
+		URL.revokeObjectURL(url);
+	}
+	active_thumbnail_urls.update(() => {
+		return [];
+	});
+}

control/frontend/src/lib/ts/types.ts

@@ -0,0 +1,134 @@
+import { FileBox, FileImage, FileText, FileVideoCamera, ImagePlay, type X } from 'lucide-svelte';
+import type { Snippet } from 'svelte';
+
+export type RequestResponse = {
+	ok: boolean;
+	http_code?: number;
+	blob?: Blob;
+	json?: Record<string, unknown>;
+};
+
+export type ShellCommandResponse = {
+	stdout: string;
+	stderr: string;
+	exitCode: number;
+};
+
+export type SupportedFileType = {
+	display_name: string;
+	mime_type: string;
+};
+export const supported_file_type_icon: Record<string, typeof X> = {
+	MP4: FileVideoCamera,
+	JPG: FileImage,
+	PNG: FileImage,
+	GIF: ImagePlay,
+	PPTX: FileBox,
+	ODP: FileBox,
+	PDF: FileText
+};
+
+export type FileTransferTask = {
+	data: FileTransferTaskData;
+	display: ShortDisplay;
+	path: string;
+	file_name: string;
+	file_primary_key: string;
+	bytes_total: number; // if type === 'sync' -> bytes_total = file_size * 2 (1x download + 1x upload)
+};
+
+export type FileTransferTaskData = {
+	type: 'upload',
+	file: File,
+} | {
+	type: "sync",
+	destination_displays: ShortDisplay[],
+}
+
+
+export type ShortDisplay = {
+	id: string;
+	ip: string;
+}
+
+
+export type FileOnDisplay = {
+	display_id: string;
+	file_primary_key: string; // JSON.stringify([string, string, number, string])
+	date_created: Date;
+	loading_data: FileLoadingData | null; // null if not loading
+};
+
+export type FileLoadingData = {
+	type: 'upload' | 'download' | 'sync_download' | 'sync_upload';
+	percentage: number;
+	bytes_per_second: number;
+	seconds_until_finish: number;
+}
+
+export type Inode = {
+	path: string;
+	name: string;
+	size: number;
+	type: string;
+	thumbnail: Blob | null;
+};
+
+export function get_file_primary_key(file: Inode): string {
+	return JSON.stringify([file.path, file.name, file.size, file.type]);
+}
+
+export type TreeElement = {
+	contents?: TreeElement[];
+	type: 'file' | 'directory';
+	name: string;
+	size: number;
+};
+
+export type Display = {
+	id: string;
+	ip: string;
+	mac: string | null;
+	position: number;
+	preview: PreviewObject;
+	group_id: string;
+	name: string;
+	status: DisplayStatus;
+};
+
+export type DisplayGroup = {
+	id: string;
+	position: number;
+};
+
+export type PreviewObject = {
+	currently_updating: boolean;
+	url: string | null;
+};
+
+export type MenuOption = {
+	icon?: typeof X;
+	name: string;
+	class?: string;
+	on_select?: () => void | Promise<void>;
+	disabled?: boolean;
+};
+
+export type PopupContent = {
+	open: boolean;
+	snippet: Snippet<[string]> | null;
+	snippet_arg?: string;
+	title?: string;
+	title_class?: string;
+	title_icon?: typeof X | null;
+	window_class?: string;
+	closable?: boolean;
+};
+
+export type DisplayStatus = 'host_offline' | 'app_offline' | 'app_online' | null;
+
+export function to_display_status(value: string): DisplayStatus {
+	return ['host_offline', 'app_offline', 'app_online'].includes(value)
+		? (value as DisplayStatus)
+		: null;
+}

control/frontend/src/lib/ts/utils.ts

@@ -0,0 +1,115 @@
+import type { DisplayStatus, Inode, SupportedFileType } from './types';
+import supported_file_types_json from './../../../../../shared/supported_file_types.json';
+
+const supported_file_types: Record<string, SupportedFileType> = supported_file_types_json as Record<
+	string,
+	SupportedFileType
+>;
+
+const invalid_first_regex = /^[^a-zA-ZäöüßÄÖÜ0-9_]/u;
+const invalid_rest_regex = /[^a-zA-ZäöüßÄÖÜ0-9 _\-()$${}.,+$€!=/]/gu;
+
+export function is_valid_name(input: string): boolean {
+	return !invalid_rest_regex.test(input) && first_letter_is_valid(input);
+}
+
+export function first_letter_is_valid(input: string): boolean {
+	if (input.length === 0) return false;
+	return !invalid_first_regex.test(input);
+}
+
+export function make_valid_name(input: string): string {
+	const s = input.normalize('NFC');
+	if (s.length === 0) return 'Datei';
+	let out = s.replace(invalid_rest_regex, '_');
+	out = out.replace(invalid_first_regex, '_');
+
+	return out;
+}
+
+export function get_file_type(file: Inode): SupportedFileType | null {
+	for (const key of Object.keys(supported_file_types)) {
+		if (file.type === supported_file_types[key].mime_type) {
+			return supported_file_types[key];
+		}
+	}
+	// Fallback:
+	const extension = file.name.split('.').pop();
+	if (extension) {
+		if (Object.keys(supported_file_types).includes('.' + extension)) {
+			return supported_file_types['.' + extension];
+		}
+	}
+	return null;
+}
+
+export function get_accepted_file_type_string(): string {
+	return Object.values(supported_file_types)
+		.map((e) => e.mime_type)
+		.join(',');
+}
+
+export function get_uuid(): string {
+	return crypto.randomUUID();
+}
+
+export function get_file_size_display_string(size: number, toFixed: number | null = null): string {
+	if (size < 0)
+		return toFixed === null ? 'versch.' : 'Verschiedene Größen auf verschiedenen Bildschirmen';
+	if (size === 0) return '0 B';
+
+	const k = 1024;
+	const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
+
+	const i = Math.floor(Math.log(size) / Math.log(k));
+	const value = size / Math.pow(k, i);
+
+	const size_string = `${value.toFixed(toFixed !== null ? toFixed : Math.max(0, 2 - Math.floor(Math.log10(value))))} ${sizes[i]}`;
+
+	return size_string.replace('.', ',');
+}
+
+export async function image_content_hash(blob: Blob, size = 32): Promise<number> {
+	// Blob → ImageBitmap (GPU-dekodiert, superschnell)
+	const bitmap = await createImageBitmap(blob);
+
+	// OffscreenCanvas ist sehr schnell (kein Layout nötig)
+	const canvas = new OffscreenCanvas(size, size);
+	const ctx = canvas.getContext('2d')!;
+	ctx.drawImage(bitmap, 0, 0, size, size);
+
+	// Pixel-Daten holen
+	const { data } = ctx.getImageData(0, 0, size, size);
+
+	// Einfacher, schneller Integer-Hash (FNV-1a)
+	let hash = 2166136261;
+	for (let i = 0; i < data.length; i++) {
+		hash ^= data[i];
+		hash = Math.imul(hash, 16777619);
+	}
+
+	bitmap.close(); // GPU-Ressourcen freigeben
+	return hash >>> 0; // unsigned int
+}
+
+export function display_status_to_info(status: DisplayStatus): string {
+	switch (status) {
+		case 'app_online':
+			return 'Online';
+		case 'app_offline':
+			return 'Lädt';
+		case 'host_offline':
+			return 'Offline';
+		case null:
+			return '???';
+	}
+}
+
+export function get_sanitized_file_url(file_path: string, is_preview = false) {
+	const pathSegments = file_path
+		.split('/')
+		.filter(Boolean)
+		.map((seg) => encodeURIComponent(seg));
+
+	return `/file/${is_preview ? 'preview/' : ''}${[...pathSegments].join('/')}`;
+}

control/frontend/src/routes/+layout.svelte

@@ -1,7 +1,10 @@
 <script lang="ts">
 	import '../app.css';
+	import Notification from './Notification.svelte';
 
 	let { children } = $props();
 </script>
 
 {@render children()}
+
+<Notification />

control/frontend/src/routes/+layout.ts

@@ -1 +1,2 @@
 export const prerender = true;
+export const ssr = false;

control/frontend/src/routes/+page.svelte

@@ -1,15 +1,25 @@
 <script lang="ts">
-	import { Monitor, Plus, Radio, Settings, X } from 'lucide-svelte';
+	import { Monitor, Plus, Radio, Settings, Trash2, X } from 'lucide-svelte';
-	import Button from '../components/Button.svelte';
+	import Button from '$lib/components/Button.svelte';
-	import FileView from '../components/FileView.svelte';
+	import FileView from './FileView.svelte';
-	import ControlView from '../components/ControlView.svelte';
+	import ControlView from './ControlView.svelte';
-	import DisplayView from '../components/DisplayView.svelte';
+	import DisplayView from './DisplayView.svelte';
-	import SplashScreen from './../../../../shared/splash_screen.html?raw';
+	import PopUp from '$lib/components/PopUp.svelte';
-	import PopUp from '../components/PopUp.svelte';
+	import { type PopupContent } from '$lib/ts/types';
-	import type { PopupContent } from '../ts/types';
+	import TextInput from '$lib/components/TextInput.svelte';
-	import TextInput from '../components/TextInput.svelte';
+	import {
-	import { add_display, is_display_name_taken } from '../ts/stores/displays';
+		add_display,
-	import { text } from '@sveltejs/kit';
+		edit_display_data,
+		get_display_by_id,
+		is_display_name_taken,
+		remove_display
+	} from '$lib/ts/stores/displays';
+	import { notifications } from '$lib/ts/stores/notification';
+	import { ping_ip } from '$lib/ts/api_handler';
+	import { onMount } from 'svelte';
+	import { on_start } from '$lib/ts/main';
+	import { display_status_to_info } from '$lib/ts/utils';
+	import HighlightedText from '$lib/components/HighlightedText.svelte';
 
 	const ip_regex =
 		/^(?:(?:10|127)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)|192\.168\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)|172\.(?:1[6-9]|2\d|3[0-1])\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d))$/;
@@ -19,14 +29,17 @@
 		open: false,
 		snippet: null,
 		title: '',
+		title_class: '!text-xl',
 		closable: true
 	});
+	let remove_display_name = $state('');
 
-	let text_inputs_valid = $state({
+	const text_inputs_valid_null_values = {
 		name: { valid: false, value: '' },
 		ip: { valid: false, value: '' },
 		mac: { valid: false, value: '' }
-	});
+	};
+	let text_inputs_valid = $state(text_inputs_valid_null_values);
 
 	function all_text_inputs_valid(): boolean {
 		for (const entry of Object.values(text_inputs_valid)) {
@@ -37,17 +50,17 @@
 		return true;
 	}
 
-	function finalize_add_new_display() {
+	async function finalize_add_edit_display(existing_display_id: string | null) {
+		popup_close_function();
 		const ip = text_inputs_valid.ip.value;
 		const mac = text_inputs_valid.mac.value === '' ? null : text_inputs_valid.mac.value;
 		const name = text_inputs_valid.name.value;
-		add_display(ip, mac, name, 'Online');
+		if (!!existing_display_id) {
-		popup_close_function();
+			await edit_display_data(existing_display_id, ip, mac, name);
-		text_inputs_valid = {
+		} else {
-			name: { valid: false, value: '' },
+			const status = await ping_ip(text_inputs_valid.ip.value);
-			ip: { valid: false, value: '' },
+			await add_display(ip, mac, name, status);
-			mac: { valid: false, value: '' }
+		}
-		};
 	}
 
 	function popup_close_function() {
@@ -55,29 +68,89 @@
 	}
 
 	const show_new_display_popup = () => {
+		text_inputs_valid = text_inputs_valid_null_values;
 		popup_content = {
 			open: true,
-			snippet: add_new_display,
+			snippet: display_popup,
 			title: 'Neuen Bildschirm hinzufügen',
 			title_icon: Monitor,
+			title_class: '!text-xl',
 			closable: true
 		};
 	};
+
+	const show_remove_display_popup = async (display_id: string) => {
+		remove_display_name = (await get_display_by_id(display_id))?.name || '?';
+		popup_content = {
+			open: true,
+			snippet: remove_display_popup,
+			snippet_arg: display_id,
+			title: 'Bildschirm wirklich löschen?',
+			title_class: 'text-red-400 !text-xl',
+			title_icon: Trash2,
+			closable: true
+		};
+	};
+
+	const show_edit_display_popup = async (display_id: string) => {
+		const display = await get_display_by_id(display_id);
+		if (!display) return;
+		// insert existing values in text_inputs_valid
+		for (const key of Object.keys(text_inputs_valid) as (keyof typeof text_inputs_valid)[]) {
+			text_inputs_valid[key].valid = true;
+			text_inputs_valid[key].value = display[key] || '';
+		}
+		popup_content = {
+			open: true,
+			snippet: display_popup,
+			snippet_arg: display_id,
+			title: 'Bildschirm bearbeiten',
+			title_icon: Monitor,
+			title_class: '!text-xl',
+			closable: true
+		};
+	};
+
+	onMount(on_start);
 </script>
 
-{#snippet add_new_display()}
+{#snippet remove_display_popup(display_id: string)}
+	<div class="max-w-prose px-2">
+		Soll der Bildschirm <HighlightedText>{remove_display_name}</HighlightedText> wirklich gelöscht werden?
+		Dadurch wird es von diesem Controller nicht mehr erreichbar. Die Installation auf dem Gerät bleibt
+		bestehen. Mit dem erneuten Hinzufügen des Bildschirms wird er wieder steuerbar.
+	</div>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="button space font-bold" click_function={popup_close_function}>
+			Abbrechen
+		</Button>
+		<Button
+			className="error button space"
+			click_function={async () => {
+				popup_close_function();
+				await remove_display(display_id);
+			}}>Löschen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet display_popup(existing_display_id: string | null = null)}
 	<TextInput
+		focused_on_start
 		bind:current_value={text_inputs_valid.name.value}
 		bind:current_valid={text_inputs_valid.name.valid}
 		title="Anzeigename"
 		placeholder="z.B. Beamer vorne links"
-		is_valid_function={(input: string) => {
+		is_valid_function={async (input: string) => {
-			return input.length === 0 || input.length > 50
+			if (!!existing_display_id) {
-				? [false, 'Ungültige Länge']
+				if (input === (await get_display_by_id(existing_display_id))?.name)
-				: is_display_name_taken(input)
+					return [true, 'Gültiger Name'];
-					? [false, 'Name bereits verwendet']
+			}
-					: [true, 'Gültiger Name'];
+			if (input.length === 0 || input.length > 50) return [false, 'Ungültige Länge'];
+			if (await is_display_name_taken(input)) return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
 		}}
+		enter_mode="focus_next"
 	/>
 	<div class="flex flex-row gap-2">
 		<TextInput
@@ -91,10 +164,21 @@
 					: [false, 'Ungültige IP-Adresse'];
 			}}
 			className="grow"
+			enter_mode="focus_next"
 		/>
 		<div class="flex items-end shrink-0">
-			<Button disabled={!text_inputs_valid.ip.valid} className="px-4 gap-2" bg="bg-stone-750"
+			<Button
-				><Radio /> Ping</Button
+				disabled={!text_inputs_valid.ip.valid}
+				className="px-4 gap-2"
+				bg="bg-stone-750"
+				click_function={async () => {
+					const status = await ping_ip(text_inputs_valid.ip.value);
+					notifications.push(
+						'info',
+						`Ping '${text_inputs_valid.ip.value}'`,
+						`Aktueller Zustand: ${display_status_to_info(status)}`
+					);
+				}}><Radio /> Ping</Button
 			>
 		</div>
 	</div>
@@ -110,14 +194,29 @@
 					? [true, 'Gültige MAC-Adresse']
 					: [false, 'Ungültige MAC-Adresse'];
 		}}
+		enter_mode="submit"
+		enter_function={async () => {
+			await finalize_add_edit_display(existing_display_id);
+		}}
 	/>
-	<div class="flex justify-end pt-2">
+	<div class="flex flex-row gap-2 justify-end pt-2">
+		{#if !!existing_display_id}
+			<!-- TODO: Ping mit existing_display_id -->
+			<Button className="px-4" click_function={popup_close_function}>Abbrechen</Button>
+		{/if}
 		<Button
 			disabled={!all_text_inputs_valid()}
-			className="pl-3 pr-4 gap-2 font-bold"
+			className="{!!existing_display_id ? 'px-4' : 'pl-3 pr-4 gap-2'} font-bold"
 			bg="bg-stone-650"
-			click_function={finalize_add_new_display}><Plus /> Bildschirm hinzufügen</Button
+			click_function={async () => {
-		>
+				await finalize_add_edit_display(existing_display_id);
+			}}
+			>{#if !!existing_display_id}
+				Speichern
+			{:else}
+				<Plus /> Bildschirm hinzufügen
+			{/if}
+		</Button>
 	</div>
 {/snippet}
 
@@ -128,7 +227,6 @@
 		<span class="text-4xl font-bold content-center pl-1"> PLG MuDiCS </span>
 		<Button
 			className="aspect-square"
-			bg="bg-stone-800"
 			div_class="aspect-square"
 			menu_options={[
 				{
@@ -146,7 +244,10 @@
 		</Button>
 	</div>
 	<div class="w-[calc(100dvw-(8*var(--spacing)))] grid grid-cols-2 gap-2">
-		<DisplayView />
+		<DisplayView
+			handle_display_deletion={show_remove_display_popup}
+			handle_display_editing={show_edit_display_popup}
+		/>
 		<div
 			class="col-start-2 h-[calc(100dvh-3rem-(6*var(--spacing)))] rounded-2xl flex flex-col gap-2"
 		>
@@ -154,5 +255,10 @@
 			<FileView />
 		</div>
 	</div>
-	<PopUp content={popup_content} close_function={popup_close_function} />
+	<PopUp
+		content={popup_content}
+		close_function={popup_close_function}
+		className="bg-white/10"
+		snippet_container_class="min-w-115"
+	/>
 </main>

control/frontend/src/routes/ControlView.svelte

@@ -0,0 +1,225 @@
+<script lang="ts">
+	import {
+		ArrowBigLeft,
+		ArrowBigRight,
+		ChevronDown,
+		Keyboard,
+		Power,
+		PowerOff,
+		Presentation,
+		SquareTerminal,
+		TextAlignStart,
+		TrafficCone
+	} from 'lucide-svelte';
+	import Button from '$lib/components/Button.svelte';
+	import PopUp from '$lib/components/PopUp.svelte';
+	import type { PopupContent } from '$lib/ts/types';
+	import KeyInput from './KeyInput.svelte';
+	import { send_keyboard_input, show_blackscreen, shutdown, startup } from '$lib/ts/api_handler';
+	import { get_display_by_id, run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+	import TipTapInput from './TipTapInput.svelte';
+	import { db } from '$lib/ts/database';
+
+	let popup_content: PopupContent = $state({
+		open: false,
+		snippet: null,
+		title: '',
+		closable: true
+	});
+
+	function popup_close_function() {
+		popup_content.open = false;
+	}
+
+	const show_send_keys_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: send_keys_popup,
+			title: 'Tastatur-Eingaben durchgeben',
+			title_icon: Keyboard,
+			closable: true
+		};
+	};
+
+	const show_text_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: text_popup,
+			title: 'Text anzeigen',
+			title_icon: TextAlignStart,
+			closable: true,
+			window_class: 'size-full'
+		};
+	};
+
+	async function all_state(selected_display_ids: string[]): Promise<'on' | 'off' | 'mixed'> {
+		const selected_displays = await Promise.all(
+			selected_display_ids.map(async (id) => await get_display_by_id(id))
+		);
+		const selected_display_states = selected_displays.map((display) => display?.status ?? '');
+		if (selected_display_states.every((state) => state === 'app_online')) {
+			return 'on';
+		} else if (selected_display_states.every((state) => state !== 'app_online')) {
+			return 'off';
+		} else {
+			return 'mixed';
+		}
+	}
+
+	async function ask_shutdonw() {
+		popup_content = {
+			open: true,
+			snippet: ask_shutdonw_popup,
+			title: 'PC Herunterfahren',
+			title_icon: PowerOff,
+			closable: true
+		};
+	}
+
+	async function shutdown_action() {
+		popup_content.open = false;
+		await run_on_all_selected_displays((d) => {
+			shutdown(d.ip); // no await here because we want to be fast
+			db.displays.update(d.id, { status: 'app_offline' });
+		}, false);
+	}
+
+	async function startup_action() {
+		await run_on_all_selected_displays(
+			async (d) => {
+				if (!d.mac) return;
+				startup(d.mac); // no await here because we want to be fast
+				db.displays.update(d.id, { status: 'app_offline' });
+			},
+			false,
+			false
+		);
+	}
+
+	async function send_single_key_press(key: string) {
+		await run_on_all_selected_displays((d) =>
+			send_keyboard_input(d.ip, [{ key, action: 'press' }])
+		);
+		setTimeout(
+			async () =>
+				await run_on_all_selected_displays((d) =>
+					send_keyboard_input(d.ip, [{ key, action: 'release' }])
+				),
+			10
+		);
+	}
+</script>
+
+{#snippet ask_shutdonw_popup()}
+	<p>Bist du sicher, dass du alle ausgewählten Displays herunterfahren möchtest?</p>
+
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="button space" click_function={() => (popup_content.open = false)}>
+			Abbrechen
+		</Button>
+		<Button click_function={shutdown_action} className="button error space">Herunterfahren</Button>
+	</div>
+{/snippet}
+
+{#snippet send_keys_popup()}
+	<div class="overflow-hidden flex flex-col gap-2">
+		<div>
+			<KeyInput />
+		</div>
+		<div class="flex flex-row justify-end gap-2">
+			<Button className="px-4 font-bold" click_function={popup_close_function}>Fertig</Button>
+		</div>
+	</div>
+{/snippet}
+
+{#snippet text_popup()}
+	<TipTapInput />
+{/snippet}
+
+<div class="grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl min-w-0">
+	<div class="text-xl font-bold pl-3 content-center bg-stone-700 rounded-t-2xl truncate min-w-0">
+		Bildschirme steuern
+	</div>
+	<div class="relative flex flex-col gap-2 p-2 overflow-auto">
+		<div class="flex flex-row justify-between gap-2">
+			<div class="flex flex-col gap-2">
+				<div class="flex flex-row gap-2 w-75 justify-normal">
+					<Button
+						title="Vorherige Folie (Pfeil nach Links)"
+						className="px-9"
+						disabled={$selected_display_ids.length === 0}
+						click_function={async () => {
+							await send_single_key_press('VK_LEFT');
+						}}><ArrowBigLeft /></Button
+					>
+					<Button
+						title="Nächste Folie (Pfeil nach Rechts)"
+						className="px-9"
+						disabled={$selected_display_ids.length === 0}
+						click_function={async () => {
+							await send_single_key_press('VK_RIGHT');
+						}}><ArrowBigRight /></Button
+					>
+				</div>
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={show_text_popup}><TextAlignStart /> Text anzeigen</Button
+				>
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={async () => {
+						await run_on_all_selected_displays((d) => show_blackscreen(d.ip));
+					}}><Presentation />Blackout</Button
+				>
+				<div class="flex flex-row justify-normal">
+					<Button
+						className="rounded-r-none pl-3 flex gap-3 grow w-65 justify-normal"
+						disabled={$selected_display_ids.length === 0}
+						><TrafficCone /> Fallback-Bild anzeigen</Button
+					>
+					<Button className="rounded-l-none flex grow-0 w-10"><ChevronDown /></Button>
+				</div>
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={show_send_keys_popup}><Keyboard /> Tastatur-Eingaben durchgeben</Button
+				>
+			</div>
+			<div class="flex flex-col gap-2 justify-between">
+				<div class="flex flex-col gap-2">
+					{#await all_state($selected_display_ids) then all}
+						<Button
+							className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
+							disabled={all === 'on' || $selected_display_ids.length === 0}
+							click_function={startup_action}
+						>
+							<Power /> PC hochfahren
+						</Button>
+
+						<Button
+							className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
+							disabled={all === 'off' || $selected_display_ids.length === 0}
+							click_function={ask_shutdonw}
+						>
+							<PowerOff /> PC herunterfahren</Button
+						>
+					{/await}
+				</div>
+				<Button
+					className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					><SquareTerminal /> Shell-Befehl ausführen</Button
+				>
+			</div>
+		</div>
+		<PopUp
+			content={popup_content}
+			close_function={popup_close_function}
+			className="rounded-b-2xl"
+			snippet_container_class="size-full"
+		/>
+	</div>
+</div>

control/frontend/src/routes/DisplayView.svelte

@@ -0,0 +1,286 @@
+<script lang="ts">
+	import { fade, scale } from 'svelte/transition';
+	import {
+		all_displays_of_group_selected,
+		get_display_by_id,
+		get_display_groups,
+		set_select_for_group,
+		set_new_display_group_order
+	} from '$lib/ts/stores/displays';
+	import {
+		change_height,
+		current_height,
+		dnd_flip_duration_ms,
+		is_display_drag,
+		is_group_drag,
+		next_height_step_size,
+		pinned_display_id
+	} from '$lib/ts/stores/ui_behavior';
+	import { type Display, type DisplayGroup, type MenuOption } from '$lib/ts/types';
+	import Button from '$lib/components/Button.svelte';
+	import OnlineState from '../lib/components/OnlineState.svelte';
+	import { cubicOut } from 'svelte/easing';
+	import { Menu, Pencil, PinOff, Settings, Trash2, VideoOff, ZoomIn, ZoomOut } from 'lucide-svelte';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+	import { dragHandleZone } from 'svelte-dnd-action';
+	import { flip } from 'svelte/animate';
+	import DisplayGroupObject from '../lib/components/DisplayGroupObject.svelte';
+	import { Pane, Splitpanes } from 'svelte-splitpanes';
+	import HighlightedText from '$lib/components/HighlightedText.svelte';
+	import { liveQuery, type Observable } from 'dexie';
+
+	let {
+		handle_display_deletion,
+		handle_display_editing
+	}: {
+		handle_display_deletion: (display_id: string) => void;
+		handle_display_editing: (display_id: string) => void;
+	} = $props();
+
+	let displays_scroll_box: HTMLElement;
+	let pinned_display: Observable<Display | null> | undefined = $state();
+	$effect(() => {
+		const pdi = $pinned_display_id;
+		pinned_display = liveQuery(() => get_display_by_id(pdi || ''));
+	});
+	let display_groups = liveQuery(() => get_display_groups());
+	let all_groups_selected: Observable<boolean> | undefined = $state();
+	$effect(() => {
+		const d = $display_groups;
+		const sdi = $selected_display_ids;
+		all_groups_selected = liveQuery(() => all_selected(d || [], sdi));
+	});
+
+	let last_pinned_pane_size: number = 45;
+	let pinned_pane_size: number = $state(last_pinned_pane_size);
+
+	function close_pinned_display() {
+		last_pinned_pane_size = pinned_pane_size;
+		pinned_pane_size = 0;
+	}
+
+	function get_display_menu_options(display_id: string): MenuOption[] {
+		return [
+			{
+				icon: Pencil,
+				name: 'Bildschirm bearbeiten',
+				on_select: () => {
+					handle_display_editing(display_id);
+				}
+			},
+			{
+				icon: Trash2,
+				name: 'Bildschirm löschen',
+				class: 'text-red-400 hover:text-stone-200 hover:!bg-red-400 active:!bg-red-500',
+				on_select: () => {
+					handle_display_deletion(display_id);
+				}
+			}
+		];
+	}
+
+	async function toggle_all_selected_displays(current_displays: DisplayGroup[]) {
+		const new_value = !$all_groups_selected;
+		for (const display_group of current_displays) {
+			await set_select_for_group(display_group.id, new_value);
+		}
+	}
+
+	async function all_selected(
+		current_displays: DisplayGroup[],
+		current_selected_display_ids: string[]
+	) {
+		for (const display_group of current_displays) {
+			if (!(await all_displays_of_group_selected(display_group.id, current_selected_display_ids))) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	function handle_splitpane_resize(e: any) {
+		if (e.detail[0].size === 0) {
+			$pinned_display_id = null;
+			pinned_pane_size = last_pinned_pane_size;
+		}
+	}
+
+	function on_wheel(e: WheelEvent) {
+		if (!$is_group_drag && !$is_display_drag) return;
+		if (!displays_scroll_box) return;
+
+		// apply custom scroll feature
+		e.preventDefault();
+		(displays_scroll_box as HTMLElement).scrollBy?.({
+			top: e.deltaY,
+			behavior: 'auto'
+		});
+	}
+</script>
+
+<svelte:window on:wheel={on_wheel} />
+
+<div class="h-[calc(100dvh-3rem-(6*var(--spacing)))] flex flex-col gap-2">
+	<Splitpanes
+		horizontal
+		theme="mudics-stone-theme"
+		on:resized={handle_splitpane_resize}
+		dblClickSplitter={false}
+	>
+		{#if $pinned_display_id}
+			<!-- Pinned Item -->
+			<Pane maxSize={60} snapSize={20} bind:size={pinned_pane_size}>
+				<div class="h-full" transition:fade>
+					<div class="grid grid-rows-[2.5rem_auto] will-change-[height,opacity] h-full">
+						<div
+							class="bg-stone-700 rounded-t-2xl flex justify-between w-full p-1 min-w-0 basis-0 flex-1"
+						>
+							<span
+								class="text-xl font-bold pl-2 content-center truncate min-w-0"
+								title={$pinned_display?.name || '...'}
+							>
+								{$pinned_display?.name || '...'}
+							</span>
+							<div class="flex flex-row gap-1">
+								<div class="flex flex-row items-center mr-1">
+									<span class="text-stone-400"> Aktueller Status: </span>
+									<OnlineState
+										selected={false}
+										status={$pinned_display?.status ?? null}
+										className="flex items-center px-2"
+									/>
+								</div>
+								<Button
+									className="aspect-square p-1!"
+									bg="bg-stone-600"
+									click_function={(e) => {
+										e.stopPropagation();
+									}}
+									menu_options={get_display_menu_options($pinned_display_id)}
+								>
+									<Menu />
+								</Button>
+
+								<Button
+									title="Bildschirm nicht mehr anpinnen"
+									className="aspect-square p-1!"
+									bg="bg-stone-600"
+									click_function={close_pinned_display}
+								>
+									<PinOff />
+								</Button>
+							</div>
+						</div>
+
+						<div
+							class="h-full bg-stone-800 rounded-b-2xl overflow-hidden flex justify-center items-center"
+						>
+							{#if $pinned_display?.preview.url}
+								<img
+									src={$pinned_display.preview.url}
+									alt="preview"
+									class="max-h-full max-w-full object-cover bg-black"
+								/>
+							{:else}
+								<div class="size-full bg-black flex justify-center items-center">
+									<VideoOff class="size-[20%]" />
+								</div>
+							{/if}
+						</div>
+					</div>
+				</div>
+			</Pane>
+		{/if}
+
+		<Pane>
+			<div
+				class="min-h-0 h-full grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl overflow-hidden"
+			>
+				<!-- Normal Heading Left -->
+				<div class="bg-stone-700 flex justify-between w-full p-1 gap-2 min-w-0">
+					<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
+						Verbundene Bildschirme
+					</span>
+					<div class="flex flex-row gap-1">
+						<button
+							class="min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors bg-stone-600"
+							onclick={async () => await toggle_all_selected_displays($display_groups)}
+						>
+							<span>{$all_groups_selected || false ? 'Alle abwählen' : 'Alle auswählen'}</span>
+						</button>
+						<div class="flex flex-row">
+							<Button
+								title="Bildschirme größer darstellen"
+								className="aspect-square p-1.5! pr-1! rounded-r-none"
+								bg="bg-stone-600"
+								disabled={!Boolean(next_height_step_size('display', $current_height, 1))}
+								click_function={() => {
+									change_height('display', 1);
+								}}
+							>
+								<ZoomIn class="size-full" />
+							</Button>
+							<Button
+								title="Bildschirme kleiner darstellen"
+								className="aspect-square p-1.5! pl-1! rounded-l-none"
+								bg="bg-stone-600"
+								disabled={!Boolean(next_height_step_size('display', $current_height, -1))}
+								click_function={() => {
+									change_height('display', -1);
+								}}
+							>
+								<ZoomOut class="size-full" />
+							</Button>
+						</div>
+					</div>
+				</div>
+				<div class="min-h-0 overflow-y-auto" bind:this={displays_scroll_box}>
+					<div
+						class="min-h-full p-2 flex flex-col gap-4"
+						use:dragHandleZone={{
+							items: $display_groups || [],
+							type: 'group',
+							flipDurationMs: dnd_flip_duration_ms,
+							dropFromOthersDisabled: true,
+							dropTargetStyle: { outline: 'none' }
+						}}
+						onconsider={async (e: CustomEvent) => {
+							$is_group_drag = true;
+							await set_new_display_group_order(e.detail.items);
+						}}
+						onfinalize={async (e: CustomEvent) => {
+							await set_new_display_group_order(e.detail.items);
+							$is_group_drag = false;
+						}}
+					>
+						{#if ($display_groups || []).length === 0}
+							<div class="text-stone-500 px-10 py-6 leading-relaxed text-center">
+								Es wurden noch keine Bildschirme hinzugefügt. Klicke oben rechts auf
+								<HighlightedText fg="text-stone-450" className="p-1!"
+									><Settings class="inline pb-1" /></HighlightedText
+								>
+								und
+								<HighlightedText fg="text-stone-450">Neuen Bildschirm hinzufügen</HighlightedText>.
+							</div>
+						{:else}
+							{#each $display_groups || [] as display_group (display_group.id)}
+								<!-- Each Group -->
+								<section
+									out:scale={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
+									animate:flip={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
+									class="outline-none"
+								>
+									<DisplayGroupObject
+										display_group_id={display_group.id}
+										{get_display_menu_options}
+										{close_pinned_display}
+									/>
+								</section>
+							{/each}
+						{/if}
+					</div>
+				</div>
+			</div>
+		</Pane>
+	</Splitpanes>
+</div>

control/frontend/src/routes/FileView.svelte

@@ -0,0 +1,399 @@
+<script lang="ts">
+	import {
+		ClipboardPaste,
+		Download,
+		FolderPlus,
+		Pen,
+		RefreshCcw,
+		Scissors,
+		Trash2,
+		Upload,
+		ZoomIn,
+		ZoomOut
+	} from 'lucide-svelte';
+	import { change_height, current_height, next_height_step_size } from '$lib/ts/stores/ui_behavior';
+	import Button from '$lib/components/Button.svelte';
+	import PathBar from './PathBar.svelte';
+	import { selected_display_ids, selected_file_ids } from '$lib/ts/stores/select';
+	import {
+		current_file_path,
+		get_current_folder_elements,
+		get_file_by_id,
+		run_for_selected_files_on_selected_displays,
+		update_current_folder_on_selected_displays,
+		get_displays_where_path_exists,
+		create_folder_on_all_selected_displays
+	} from '$lib/ts/stores/files';
+	import { slide } from 'svelte/transition';
+	import InodeElement from '../lib/components/InodeElement.svelte';
+	import PopUp from '$lib/components/PopUp.svelte';
+	import { get_file_primary_key, type Inode, type PopupContent } from '$lib/ts/types';
+	import TextInput from '$lib/components/TextInput.svelte';
+	import {
+		first_letter_is_valid,
+		get_accepted_file_type_string,
+		is_valid_name
+	} from '$lib/ts/utils';
+	import { delete_files, rename_file } from '$lib/ts/api_handler';
+	import HighlightedText from '$lib/components/HighlightedText.svelte';
+	import { liveQuery, type Observable } from 'dexie';
+	import { download_file, add_upload } from '$lib/ts/file_transfer_handler';
+
+	let current_name: string = $state('');
+	let current_valid: boolean = $state(false);
+
+	let display_names_where_path_does_not_exist: string[] = $state([]);
+	let selected_files: Observable<Inode[]> | undefined = $state();
+	$effect(() => {
+		const s = $selected_file_ids;
+		selected_files = liveQuery(() => get_selected_files(s));
+	});
+	let current_folder_elements: Observable<Inode[]> | undefined = $state();
+	$effect(() => {
+		const path = $current_file_path,
+			display_ids = $selected_display_ids;
+		current_folder_elements = liveQuery(() => get_current_folder_elements(path, display_ids));
+	});
+	let one_file_selected: Observable<boolean> | undefined = $state();
+	$effect(() => {
+		const s = $selected_file_ids;
+		one_file_selected = liveQuery(async () => {
+			return s.length === 1 && (await get_file_by_id(s[0]))?.type !== 'inode/directory';
+		})
+	})
+
+	let popup_content: PopupContent = $state({
+		open: false,
+		snippet: null,
+		title: '',
+		closable: true
+	});
+
+	let file_input: HTMLInputElement;
+
+	async function get_selected_files(selected_file_ids: string[]): Promise<Inode[]> {
+		try {
+			const results = await Promise.all(selected_file_ids.map((id) => get_file_by_id(id)));
+			return results.filter((element) => element !== null);
+		} catch (e: unknown) {
+			console.error('Error on generating selected_files');
+			return [];
+		}
+	}
+
+	function popup_close_function() {
+		popup_content.open = false;
+	}
+
+	async function create_new_folder() {
+		popup_close_function();
+		await create_folder_on_all_selected_displays(
+			current_name.trim(),
+			$current_file_path,
+			$selected_display_ids
+		);
+		await update_current_folder_on_selected_displays();
+	}
+
+	async function edit_file_name(new_file_name: string) {
+		popup_close_function();
+		await run_for_selected_files_on_selected_displays(async (ip: string, file_names: string[]) => {
+			if (file_names.length !== 1) {
+				console.error(file_names);
+				return; // Error
+			}
+			await rename_file(ip, $current_file_path, file_names[0], new_file_name);
+		});
+		await update_current_folder_on_selected_displays();
+	}
+
+	const show_edit_file_popup = async () => {
+		const file = await get_file_by_id($selected_file_ids[0]);
+		if (!file) return;
+		const is_folder = file.type === 'inode/directory';
+		const extension = is_folder ? '' : '.' + file.name.split('.').at(-1) || '';
+		current_name = file.name.slice(0, file.name.length - extension.length);
+		current_valid = true;
+		popup_content = {
+			open: true,
+			snippet: edit_file_name_popup,
+			title: `${is_folder ? 'Ordner' : 'Datei'} umbenennen`,
+			title_icon: FolderPlus,
+			snippet_arg: extension,
+			closable: true
+		};
+	};
+
+	const show_new_folder_popup = async () => {
+		current_name = '';
+		current_valid = false;
+		display_names_where_path_does_not_exist = (
+			await get_displays_where_path_exists($current_file_path, $selected_display_ids, true)
+		).map((display) => display.name);
+		popup_content = {
+			open: true,
+			snippet: new_folder_popup,
+			title: 'Neuen Ordner erstellen',
+			title_icon: FolderPlus,
+			closable: true
+		};
+	};
+
+	const delete_folder_element_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: delete_request_popup,
+			title: `${$selected_file_ids.length} ${$selected_file_ids.length === 1 ? 'Objekt' : 'Objekte'} wirklich löschen?`,
+			title_icon: Trash2,
+			closable: true
+		};
+	};
+</script>
+
+{#snippet new_folder_popup()}
+	{#if display_names_where_path_does_not_exist.length > 0}
+		<span class="leading-relaxed"
+			>Der aktuelle Pfad <HighlightedText
+				>{$current_file_path.slice(0, $current_file_path.length - 1)}</HighlightedText
+			> existiert nicht auf {display_names_where_path_does_not_exist.length === 1
+				? 'dem Bildschirm'
+				: 'den Bildschirmen'}
+			{#each display_names_where_path_does_not_exist as display_name, i}
+				{#if i !== 0}
+					,
+				{/if}
+				<HighlightedText>{display_name}</HighlightedText>
+			{/each}. Mit der Erstellung dieses Ordners wird der Pfad automatisch mit leeren Ordnern bis
+			zum aktuellen Pfad aufgefüllt.
+		</span>
+	{/if}
+	<TextInput
+		focused_on_start={true}
+		bind:current_value={current_name}
+		bind:current_valid
+		title="Ordnername"
+		is_valid_function={async (input: string) => {
+			const trimmed_input = input.trim();
+			if (trimmed_input.length === 0 || trimmed_input.length > 50)
+				return [false, 'Ungültige Länge'];
+			if (!first_letter_is_valid(trimmed_input))
+				return [false, `Name darf nicht mit ${trimmed_input[0]} beginnen`];
+			if (!is_valid_name(trimmed_input)) return [false, 'Name enthält ungültige Zeichen'];
+			if (($current_folder_elements ?? []).some((e) => e.name === trimmed_input))
+				return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
+		}}
+		enter_mode="submit"
+		enter_function={create_new_folder}
+	/>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="px-4 font-bold" click_function={create_new_folder} disabled={!current_valid}
+			>Neuen Ordner erstellen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet edit_file_name_popup(extension: string)}
+	<TextInput
+		focused_on_start={true}
+		bind:current_value={current_name}
+		bind:current_valid
+		title="Neuer {extension === '' ? 'Ordner' : 'Datei'}name"
+		is_valid_function={async (input: string) => {
+			const trimmed_input = input.trim() + extension;
+			if (trimmed_input.length === 0 || trimmed_input.length > 50)
+				return [false, 'Ungültige Länge'];
+			if (!first_letter_is_valid(trimmed_input))
+				return [false, `Name darf nicht mit ${trimmed_input[0]} beginnen`];
+			if (!is_valid_name(trimmed_input)) return [false, 'Name enthält ungültige Zeichen'];
+			if (
+				($current_folder_elements ?? []).some(
+					(e) => e.name === trimmed_input && get_file_primary_key(e) !== $selected_file_ids[0]
+				)
+			)
+				return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
+		}}
+		enter_mode="submit"
+		enter_function={async () => await edit_file_name(current_name.trim() + extension)}
+		{extension}
+	/>
+	<div class="flex flex-row justify-end gap-2">
+		<Button
+			className="px-4 font-bold"
+			click_function={async () => await edit_file_name(current_name.trim() + extension)}
+			disabled={!current_valid}>{extension === '' ? 'Ordner' : 'Datei'} umbenennen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet delete_request_popup()}
+	<div class="flex flex-col gap-1 h-full min-h-0 grow-0">
+		<span class="text-stone-400 px-1"
+			>{`${$selected_file_ids.length === 1 ? 'Folgendes Objekt' : `Folgende ${$selected_file_ids.length} Objekte`} löschen? (Wiederherstellung nicht möglich)`}</span
+		>
+		<div class="flex flex-col gap-2 overflow-auto h-full min-h-0 grow-0">
+			{#each $selected_files || [] as file}
+				<InodeElement {file} not_interactable />
+			{/each}
+		</div>
+	</div>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="button space font-bold" click_function={popup_close_function}>
+			Abbrechen
+		</Button>
+		<Button
+			className="button error space"
+			click_function={async () => {
+				popup_close_function();
+				await run_for_selected_files_on_selected_displays(
+					async (ip: string, file_names: string[]) => {
+						await delete_files(ip, $current_file_path, file_names);
+					}
+				);
+				await update_current_folder_on_selected_displays();
+			}}>Löschen</Button
+		>
+	</div>
+{/snippet}
+
+<input
+	class="hidden"
+	type="file"
+	bind:this={file_input}
+	multiple
+	accept={get_accepted_file_type_string()}
+	onchange={(e) =>
+		add_upload((e.target as HTMLInputElement).files!, $selected_display_ids, $current_file_path)}
+/>
+
+<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
+	<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
+		<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
+			Dateien anzeigen und verwalten
+		</span>
+		<div class="flex flex-row">
+			<Button
+				title="Dateien größer darstellen"
+				className="aspect-square p-1.5! pr-1! rounded-r-none"
+				bg="bg-stone-600"
+				disabled={!Boolean(next_height_step_size('file', $current_height, 1))}
+				click_function={() => {
+					change_height('file', 1);
+				}}
+			>
+				<ZoomIn class="size-full" />
+			</Button>
+			<Button
+				title="Dateien kleiner darstellen"
+				className="aspect-square p-1.5! pl-1! rounded-l-none"
+				bg="bg-stone-600"
+				disabled={!Boolean(next_height_step_size('file', $current_height, -1))}
+				click_function={() => {
+					change_height('file', -1);
+				}}
+			>
+				<ZoomOut class="size-full" />
+			</Button>
+		</div>
+	</div>
+	<div class="flex flex-col gap-2 p-2 overflow-hidden relative rounded-b-2xl">
+		<div class="flex flex-col gap-2 p-2 bg-stone-750 rounded-xl">
+			<PathBar />
+			<div class="flex flex-row justify-between gap-6">
+				<div class="flex flex-row gap-2 shrink-0">
+					<Button
+						title="Neuen Ordner erstellen (Neuen Ordner mit ausgewählten Objekten erstellen)"
+						className="px-3 flex"
+						click_function={show_new_folder_popup}
+						disabled={$selected_display_ids.length === 0}><FolderPlus /></Button
+					>
+					<div class="border border-stone-700 my-1"></div>
+					<Button
+						title="Datei(en) hochladen"
+						className="px-3 flex"
+						click_function={() => {
+							if (file_input) file_input.click();
+						}}
+						disabled={$selected_display_ids.length === 0}><Upload /></Button
+					>
+					<Button
+						title="Ausgewählte Datei herunterladen"
+						className="px-3 flex"
+						click_function={() => (download_file($selected_file_ids[0], $selected_display_ids))}
+						disabled={!$one_file_selected}><Download /></Button
+					>
+					<div class="border border-stone-700 my-1"></div>
+					<Button
+						title="Aktuellen Ordner / Ausgewählte Datei(en) zwischen Bildschirmen synchronisieren"
+						className="px-3 flex gap-3"
+						disabled={$selected_display_ids.length === 0}
+						><RefreshCcw />
+						<span class="hidden 2xl:flex">Synchronisieren</span>
+					</Button>
+				</div>
+				<div class="flex flex-row gap-2">
+					<Button
+						title="Ausgewählte Datei(en) ausschneiden"
+						className="px-3 flex"
+						disabled={$selected_file_ids.length === 0}><Scissors /></Button
+					>
+					<Button
+						title="Ausgewählte Datei(en) einfügen"
+						className="px-3 flex"
+						disabled={$selected_display_ids.length === 0}
+					>
+						<ClipboardPaste />
+					</Button>
+					<div class="border border-stone-700 my-1"></div>
+					<Button
+						title="Ausgewählte Datei umbenennen"
+						className="px-3 flex"
+						click_function={show_edit_file_popup}
+						disabled={$selected_file_ids.length !== 1}><Pen /></Button
+					>
+					<Button
+						title="Ausgewählte Datei(en) löschen"
+						hover_bg="bg-red-400"
+						active_bg="bg-red-500"
+						className="px-3 flex"
+						disabled={$selected_file_ids.length === 0}
+						click_function={delete_folder_element_popup}><Trash2 /></Button
+					>
+				</div>
+			</div>
+		</div>
+		<div class="min-h-0 h-full overflow-y-auto bg-stone-750 rounded-xl">
+			<div class="flex flex-col gap-2 p-2 min-h-0 max-w-full">
+				{#if $selected_display_ids.length === 0}
+					<span class="text-stone-450 px-10 py-6 leading-relaxed text-center">
+						Es sind keine Bildschirme ausgewählt.
+					</span>
+				{:else}
+					{#each $current_folder_elements ?? [] as folder_element (get_file_primary_key(folder_element))}
+						<section in:slide={{ duration: 100 }} class="outline-none">
+							<InodeElement file={folder_element} />
+						</section>
+					{/each}
+					{#if ($current_folder_elements ?? []).length === 0}
+						<span class="text-stone-450 px-10 py-6 leading-relaxed text-center max-w-full">
+							Es existieren keine Dateien auf {$selected_display_ids.length === 1
+								? 'dem ausgewähltem Bildchirm'
+								: 'den ausgewählten Bildschirmen'} im aktuellen Ordner. Klicke auf <HighlightedText
+								bg="bg-stone-700"
+								fg="text-stone-400"
+								className="p-1!"><Upload class="inline pb-1" /></HighlightedText
+							> um Datei(en) hochzuladen.
+						</span>
+					{/if}
+				{/if}
+			</div>
+		</div>
+		<PopUp
+			content={popup_content}
+			close_function={popup_close_function}
+			className="rounded-b-2xl"
+			snippet_container_class="overflow-hidden min-w-90"
+		/>
+	</div>
+</div>

control/frontend/src/routes/KeyInput.svelte

@@ -0,0 +1,106 @@
+<script lang="ts">
+	import { flip } from 'svelte/animate';
+	import { get_selectable_color_classes } from '$lib/ts/stores/ui_behavior';
+	import key_map_json from './../../../../shared/keys.json';
+	import { fade } from 'svelte/transition';
+	import { run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { send_keyboard_input } from '$lib/ts/api_handler';
+
+	const key_map: Record<string, string> = key_map_json as Record<string, string>;
+
+	let active = $state(false);
+	const current_keys: string[] = $state([]);
+	let last_keys: { id: number; key: string }[] = $state([]);
+
+	let el: HTMLDivElement;
+
+	function add_to_last_keys(name: string) {
+		const id = Date.now();
+		last_keys.push({ id, key: name });
+		setTimeout(() => {
+			last_keys = last_keys.filter((e) => e.id !== id);
+		}, 1500);
+	}
+
+	async function on_key(e: KeyboardEvent, key_down: boolean) {
+		if (!active) return;
+		const id = key_map[e.code];
+		if (!id) return;
+
+		if (key_down) {
+			if (current_keys.includes(e.code)) return;
+			current_keys.push(e.code);
+		} else {
+			const index = current_keys.indexOf(e.code);
+			if (index === -1) return;
+			current_keys.splice(index, 1);
+		}
+
+		if (e.repeat) return;
+
+		e.preventDefault();
+		e.stopPropagation();
+
+		const action: 'press' | 'release' = key_down ? 'press' : 'release';
+
+		add_to_last_keys(action.toUpperCase() + ' ' + e.code);
+
+		await run_on_all_selected_displays(
+			(d) => send_keyboard_input(d.ip, [{ key: id, action }]),
+			true
+		);
+	}
+
+	async function release_all_pressed_keys() {
+		const inputs: {key: string; action: 'press' | 'release' }[] = [];
+		for (let i = current_keys.length - 1; i >= 0; i--) {
+			inputs.push({key: current_keys[i], action: 'release'})
+			current_keys.splice(i, 1);
+		}
+
+		await run_on_all_selected_displays(
+			(d) => send_keyboard_input(d.ip, inputs),
+			true
+		);
+	}
+</script>
+
+<div
+	role="textbox"
+	tabindex="0"
+	bind:this={el}
+	onclick={() => {
+		if (active) {
+			el.blur();
+		} else {
+			el.focus();
+			active = true;
+		}
+	}}
+	onblur={async () => {
+		active = false;
+		await release_all_pressed_keys();
+	}}
+	onkeydown={(e) => on_key(e, true)}
+	onkeyup={(e) => on_key(e, false)}
+	class="relative flex justify-center items-center h-15 w-full cursor-pointer rounded-xl transition-colors duration-200 select-none {get_selectable_color_classes(
+		active,
+		{
+			bg: true,
+			hover: true,
+			active: true,
+			text: true
+		}
+	)}"
+>
+	{active ? 'Erfassung aktiv' : 'Hier für Erfassung klicken'}
+	<div class="absolute top-full left-0 ml-1 mt-0.5 flex flex-col-reverse text-sm text-stone-400">
+		{#each last_keys as key (key.id)}
+			<span
+				animate:flip={{ duration: 200 }}
+				in:fade={{ duration: 200 }}
+				out:fade={{ duration: 500 }}>{key.key}</span
+			>
+		{/each}
+	</div>
+</div>

control/frontend/src/routes/Notification.svelte

@@ -0,0 +1,54 @@
+<script lang="ts">
+	import { fade } from 'svelte/transition';
+	import Button from '$lib/components/Button.svelte';
+	import { X } from 'lucide-svelte';
+	import { notifications } from '$lib/ts/stores/notification';
+</script>
+
+<div
+	data-testid="notification"
+	class="fixed flex flex-col gap-2 top-[41%] right-2 left-2 md:top-auto md:left-auto md:bottom-2 md:w-100 z-50"
+>
+	{#each $notifications as n (n.id)}
+		<div
+			transition:fade={{ duration: 200 }}
+			class="p-2 pl-4 pb-3 rounded-lg shadow-xl/30 text-white flex flex-col gap-2 overflow-hidden relative border border-black/20 {n.className}"
+			class:bg-red-900={n.type === 'error'}
+			class:bg-green-900={n.type === 'success'}
+			class:bg-sky-900={n.type === 'info'}
+			style="--dur: {n.duration}ms"
+		>
+			<div class="flex flex-row justify-between">
+				<span class="text-xl font-bold flex items-center">{n.title}</span>
+				<Button
+					click_function={() => notifications.remove(n.id)}
+					className="p-2"
+					bg="bg-stone-900/50"
+					hover_bg="bg-stone-600/70"
+					active_bg="bg-stone-500/80"><X /></Button
+				>
+			</div>
+
+			<span class="whitespace-break-spaces max-h-[60vh] overflow-y-auto">{n.message}</span>
+
+			<div class="absolute inset-x-0 bottom-0 h-1 bg-white/25">
+				<div class="block h-full w-full bg-white/80 origin-left animate-progress-bar"></div>
+			</div>
+		</div>
+	{/each}
+</div>
+
+<style>
+	@keyframes progress {
+		from {
+			transform: scaleX(0);
+		}
+		to {
+			transform: scaleX(1);
+		}
+	}
+	.animate-progress-bar {
+		animation: progress var(--dur) linear forwards;
+		transform-origin: left;
+	}
+</style>

control/frontend/src/routes/PathBar.svelte

@@ -1,16 +1,17 @@
 <script lang="ts">
 	import { ChevronRight, House } from 'lucide-svelte';
-	import Button from './Button.svelte';
+	import Button from '$lib/components/Button.svelte';
 	import { onDestroy, onMount } from 'svelte';
-	import type { MenuOption } from '../ts/types';
+	import type { MenuOption } from '$lib/ts/types';
-	import { change_file_path, current_file_path } from '../ts/stores/files';
+	import { change_file_path, current_file_path } from '$lib/ts/stores/files';
-	import { fade } from 'svelte/transition';
 	import { flip } from 'svelte/animate';
 	import { cubicOut } from 'svelte/easing';
 
-	let { bg = 'bg-stone-700' } = $props<{
+	let {
+		bg = 'bg-stone-700'
+	}: {
 		bg?: string;
-	}>();
+	} = $props();
 
 	let outside_container: HTMLDivElement;
 	let inside_container: HTMLDivElement;
@@ -79,21 +80,21 @@
 			out.push({
 				name: '  '.repeat(i) + hidden_folders[i],
 				class: 'truncate max-w-80',
-				on_select: () => {
+				on_select: async () => {
-					open_path(i + 1, path);
+					await open_path(i + 1, path);
 				}
 			});
 		}
 		return out;
 	}
 
-	function open_path(index_of_all_folders: number, path: string) {
+	async function open_path(index_of_all_folders: number, path: string) {
 		let new_path = '/';
 		const all_folders = get_folders(path);
 		for (let i = 0; i < index_of_all_folders; i++) {
 			new_path += all_folders[i] + '/';
 		}
-		change_file_path(new_path);
+		await change_file_path(new_path);
 	}
 
 	onMount(() => {
@@ -113,11 +114,14 @@
 				<Button
 					className="py-1 shrink-0 grow-0 w-10"
 					{bg}
-					click_function={(e) => {
+					click_function={async () => {
-						open_path(0, $current_file_path);
+						await open_path(0, $current_file_path);
 					}}
 				>
-					<House class="size-full transition-all duration-100" strokeWidth={$current_file_path === '/' ? 2.7 : 2}/>
+					<House
+						class="size-full transition-all duration-100"
+						strokeWidth={$current_file_path === '/' ? 2.7 : 2}
+					/>
 				</Button>
 			</div>
 			{#if cut_folders !== 0}
@@ -144,8 +148,8 @@
 							? 'max-w-80 font-bold'
 							: 'max-w-30'}"
 						{bg}
-						click_function={(e) => {
+						click_function={async () => {
-							open_path(cut_folders + i + 1, $current_file_path);
+							await open_path(cut_folders + i + 1, $current_file_path);
 						}}
 					>
 						<ChevronRight class="shrink-0 text-stone-500 h-full" />

control/frontend/src/routes/TipTapInput.svelte

@@ -0,0 +1,255 @@
+<script lang="ts">
+	import { onMount, onDestroy } from 'svelte';
+	import { Editor } from '@tiptap/core';
+	import { StarterKit } from '@tiptap/starter-kit';
+	import Placeholder from '@tiptap/extension-placeholder';
+	import {
+		Baseline,
+		Bold,
+		Highlighter,
+		Italic,
+		PaintBucket,
+		QrCode,
+		Strikethrough
+	} from 'lucide-svelte';
+	import Button from '$lib/components/Button.svelte';
+	import { run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { show_html } from '$lib/ts/api_handler';
+	import { get_selectable_color_classes } from '$lib/ts/stores/ui_behavior';
+	import { TextStyle } from '@tiptap/extension-text-style';
+	import { Color } from '@tiptap/extension-text-style';
+	import Highlight from '@tiptap/extension-highlight';
+
+	type TextEditOption = {
+		onclick: () => void;
+		is_selected: () => boolean;
+		icon: typeof Bold;
+		title: string;
+		color?: ColorElement;
+	};
+
+	type ColorElement = {
+		color_string: () => string;
+		color_picker: () => void;
+	};
+
+	type ColorState = {
+		el: HTMLInputElement | null;
+		value: string;
+	};
+
+	let element = $state<HTMLElement>();
+	let editor_state = $state<{ editor: Editor | null }>({ editor: null });
+
+	let color_states: { text: ColorState; highlight: ColorState; bg: ColorState } = $state({
+		text: { el: null, value: '#b91c1c' },
+		highlight: { el: null, value: '#0c4a6e' },
+		bg: { el: null, value: '#1c1917' }
+	});
+
+	const text_edit_options: TextEditOption[][] = [
+		[
+			{
+				onclick: () => editor_state.editor?.chain().focus().toggleBold().run(),
+				is_selected: () => editor_state.editor?.isActive('bold') ?? false,
+				title: 'Fett (STRG+B)',
+				icon: Bold
+			},
+			{
+				onclick: () => editor_state.editor?.chain().focus().toggleItalic().run(),
+				is_selected: () => editor_state.editor?.isActive('italic') ?? false,
+				title: 'Kursiv (STRG+I)',
+				icon: Italic
+			},
+			{
+				onclick: () => editor_state.editor?.chain().focus().toggleStrike().run(),
+				is_selected: () => editor_state.editor?.isActive('strike') ?? false,
+				title: 'Durchgestrichen',
+				icon: Strikethrough
+			},
+			{
+				onclick: () => {},
+				is_selected: () => false,
+				title: 'QR-Code anfügen',
+				icon: QrCode
+			}
+		],
+		[
+			{
+				onclick: () => editor_state.editor?.chain().focus().setColor(color_states.text.value).run(),
+				is_selected: () =>
+					editor_state.editor?.isActive('textStyle', { color: color_states.text.value }) ?? false,
+				icon: Baseline,
+				title: 'Textfarbe',
+				color: get_color_element(color_states.text)
+			},
+			{
+				onclick: () =>
+					editor_state.editor
+						?.chain()
+						.focus()
+						.toggleHighlight({ color: color_states.highlight.value })
+						.run(),
+				is_selected: () =>
+					editor_state.editor?.isActive('highlight', { color: color_states.highlight.value }) ??
+					false,
+				icon: Highlighter,
+				title: 'Markierungsfarbe',
+				color: get_color_element(color_states.highlight)
+			},
+			{
+				onclick: () => color_states.bg.el?.click(),
+				is_selected: () => false,
+				title: 'Hintergrundfarbe',
+				icon: PaintBucket
+			}
+		]
+	];
+
+	function get_color_element(color_state: ColorState) {
+		return {
+			color_string: () => color_state.value,
+			color_picker: () => color_state.el?.click()
+		};
+	}
+
+	async function show_text() {
+		const html =
+			editor_state.editor?.getHTML() +
+			`<style>:root {--background-color: ${color_states.bg.value} !important;}
+</style>`;
+		await run_on_all_selected_displays((d) => show_html(d.ip, html));
+	}
+
+	onMount(() => {
+		editor_state.editor = new Editor({
+			element: element,
+			extensions: [
+				StarterKit,
+				Placeholder.configure({
+					placeholder: 'Text hier eingeben ...'
+				}),
+				TextStyle,
+				Color,
+				Highlight.configure({
+					multicolor: true
+				})
+			],
+			content: '',
+			onTransaction: ({ editor }) => {
+				// Increment the state signal to force a re-render
+				editor_state = { editor };
+			},
+			autofocus: true
+		});
+	});
+	onDestroy(() => {
+		editor_state.editor?.destroy();
+	});
+</script>
+
+{#each Object.values(color_states) as color_state}
+	<input type="color" bind:this={color_state.el} bind:value={color_state.value} class="hidden" />
+{/each}
+
+<div data-testid="text-popup" class="flex flex-row gap-2 size-full">
+	<div
+		class="rounded-xl size-full shrink min-w-0 flex"
+		style="background-color: {color_states.bg.value};"
+	>
+		<div bind:this={element} class="size-full overflow-auto px-3 py-2"></div>
+	</div>
+
+	<div class="flex flex-col gap-2 justify-between">
+		<div class="flex flex-col gap-2">
+			{#each text_edit_options as edit_row}
+				<div class="flex flex-row gap-1">
+					{#each edit_row as option}
+						<div class="flex flex-row">
+							<button
+								title={option.title}
+								onclick={option.onclick}
+								class="p-1 {option.color
+									? 'rounded-l-xl'
+									: 'rounded-xl'} cursor-pointer duration-200 transition-colors {get_selectable_color_classes(
+									option.is_selected(),
+									{
+										bg: true,
+										hover: true,
+										active: true,
+										text: true
+									},
+									-100,
+									50
+								)}"
+							>
+								{#if option.icon}
+									{@const Icon = option.icon}
+									<Icon class="h-7 w-7" />
+								{/if}
+							</button>
+							{#if option.color}
+								<button
+									aria-label="Color"
+									onclick={option.color.color_picker}
+									title={option.title}
+									class="flex p-1 rounded-r-xl cursor-pointer duration-200 transition-colors justify-center items-center {get_selectable_color_classes(
+										option.is_selected(),
+										{
+											bg: true,
+											hover: true,
+											active: true,
+											text: true
+										},
+										-100,
+										50
+									)}"
+								>
+									<span
+										class="h-7 w-3 rounded-full"
+										style="background-color: {option.color.color_string()};"
+									></span>
+								</button>
+							{/if}
+						</div>
+					{/each}
+				</div>
+			{/each}
+		</div>
+
+		<Button click_function={show_text} className="w-full font-bold">Text anzeigen</Button>
+	</div>
+</div>
+
+<style>
+	:global(.tiptap) {
+		width: 100%;
+		height: 100%;
+		--tw-outline-style: none;
+		outline-style: none;
+	}
+
+	:global(.tiptap ul),
+	:global(.tiptap ol) {
+		padding-left: 1.5rem;
+	}
+
+	:global(.tiptap ul) {
+		list-style: disc;
+	}
+
+	:global(.tiptap ol) {
+		list-style: decimal;
+	}
+
+	:global(.tiptap p) {
+		margin-bottom: 0.5rem;
+	}
+	:global(.tiptap p.is-editor-empty:first-child::before) {
+		content: attr(data-placeholder);
+		pointer-events: none;
+		color: oklch(44.4% 0.011 73.639);
+		float: left;
+		height: 0;
+		opacity: 0.7;
+	}

control/frontend/src/routes/test/+page.svelte

@@ -1,47 +0,0 @@
-<script>
-	import { Minus, Settings, TvMinimalPlay } from 'lucide-svelte';
-
-	import Button from '../../components/Button.svelte';
-	import { pinned_display_id } from '../../ts/stores/ui_behavior';
-	import { fade, slide } from 'svelte/transition';
-</script>
-
-<main class="bg-stone-900 h-dvh w-dvw text-stone-200 p-4 gap-4 grid grid-rows-[3rem_auto]">
-	<div class="w-[calc(100dvw-(8*var(--spacing)))] flex justify-between">
-		<span class="text-4xl font-bold content-center h-full"> PLG MuDiCS </span>
-		<Button className="aspect-square" bg="bg-stone-800">
-			<Settings></Settings>
-		</Button>
-	</div>
-	<div class="w-[calc(100dvw-(8*var(--spacing)))] grid grid-cols-2 gap-2">
-		<div class="h-[calc(100dvh-3rem-(12*var(--spacing)))] flex flex-col gap-2"></div>
-		<div
-			class="col-start-2 h-[calc(100dvh-3rem-(12*var(--spacing)))] rounded-2xl flex flex-col gap-2"
-		>
-			<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_auto]">
-				<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
-					<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-						Dateien anzeigen und verwalten
-					</span>
-					<div class="flex flex-ro"></div>
-				</div>
-				<div class="flex flex-col gap-2 p-2 max-w-full overflow-hidden min-w-0">
-					<div class="flex flex-row justify-between gap-4 min-w-0">
-						<div class="flex flex-row gap-2 min-w-0 flex-1">
-							<Button className="px-3 flex items-center gap-3 min-w-0 flex-1 justify-start">
-								<TvMinimalPlay />
-								<!-- Text: nimmt Restbreite, darf schrumpfen & ellipsieren -->
-								<span class="truncate min-w-0 flex-1">Sehr lange Beschriftung für den Button</span>
-							</Button>
-							<div class="relative min-w-0 flex">
-								<button class="text-xl font-bold pl-2 content-center truncate min-w-0">
-									Dateien anzeigen und verwalten
-								</button>
-							</div>
-						</div>
-					</div>
-				</div>
-			</div>
-		</div>
-	</div>
-</main>

control/frontend/src/tailwind.config.js

@@ -201,6 +201,7 @@ module.exports = {
     'group-active:border-stone-900',
     'group-active:border-stone-950',
 
+    'h-10',
     'h-15',
     'h-20',
     'h-25',
@@ -213,5 +214,8 @@ module.exports = {
 
     'hover:bg-red-400',
     'active:bg-red-500',
+
+    'hover:bg-stone-600/70',
+    'active:bg-stone-500/80',
   ],
 }

control/frontend/src/ts/api_handler.ts

@@ -1,83 +0,0 @@
-import type { FolderElement } from "./types";
-import { get_uuid } from "./utils";
-
-export async function get_screenshot(ip: string) {
-    const options = { method: 'PATCH' };
-    return await request(ip, '/takeScreenshot', options);
-}
-
-export async function open_file(ip: string, path_to_file: string) {
-    const options = { method: 'PATCH', headers: { 'content-type': 'application/octet-stream' } };
-    const raw_response = await request(ip, `/file${path_to_file}`, options);
-}
-
-export async function get_file_data(ip: string, path: string): Promise<FolderElement[]> {
-    interface FileInfo {
-        name: string;
-        type: string;
-        size: string;
-        created: string;
-    }
-
-    const options = {
-        method: 'PATCH',
-        headers: { 'content-type': 'application/json' },
-        body: JSON.stringify({
-            command: `cd ".${path}" && find . -maxdepth 1 -mindepth 1 -print0 | while IFS= read -r -d '' f; do
-  typ=$(file -b --mime-type -- "$f")
-  size=$(stat -c '%s' -- "$f")
-  created=$(stat -c '%w' -- "$f")
-  [ "$created" = "-" ] && created=$(stat -c '%y' -- "$f")
-  jq -n --arg name "$f" --arg type "$typ" --arg size "$size" --arg created "$created" \
-    '{name:$name, type:$type, size:($size|tostring), created:$created}' | tr -d '\n'
-  echo
-done
-` })
-    };
-    const raw_response = await request(ip, '/shellCommand', options);
-    const response: FileInfo[] = raw_response.stdout.trim()
-        .split("\n")
-        .filter(Boolean)
-        .map((line: string) => JSON.parse(line) as FileInfo);
-
-    const folder_element_list: FolderElement[] = [];
-
-    for (const response_element of response) {
-        // filter hidden files (start with '.' -> './.config')
-        if (response_element.name.charAt(2) !== '.') {
-            const folder_element: FolderElement = {
-                id: get_uuid(),
-                hash: JSON.stringify(response),
-                thumbnail_url: null,
-                name: response_element.name.slice(2), // remove "./"
-                type: response_element.type,
-                date_created: new Date(response_element.created),
-                size: Number(response_element.size),
-            };
-            folder_element_list.push(folder_element);
-        }
-    }
-    return folder_element_list;
-}
-
-
-
-
-async function request(ip: string, api_route: string, options: { method: string, headers?: Record<string, string>, body?: any }) {
-    try {
-        const url = `http://${ip}:1323/api${api_route}?t=${Date.now()}`;
-        console.log(url)
-        const response = await fetch(url, options);
-        if (!response.ok) {
-            console.error(`HTTP error! Status: ${response.status}`);
-        }
-        const contentType = response.headers.get("content-type") || "";
-        if (!contentType.includes("application/json")) {
-            return await response.blob();
-        } else {
-            return await response.json();
-        }
-    } catch (error) {
-        console.error(error);
-    }
-}

control/frontend/src/ts/main.ts

@@ -1,4 +0,0 @@
-export function on_start() {
-
-}
-

control/frontend/src/ts/stores/displays.ts

@@ -1,144 +0,0 @@
-import { get, writable, type Writable } from "svelte/store";
-import type { Display, DisplayGroup } from "../types";
-import { is_selected, select, selected_display_ids } from "./select";
-import { get_uuid, image_content_hash } from "../utils";
-import { get_screenshot } from "../api_handler";
-
-export const displays: Writable<DisplayGroup[]> = writable<DisplayGroup[]>([{
-    id: get_uuid(),
-    data: []
-}]);
-
-
-export function is_display_name_taken(name: string): boolean {
-  const display_groups = get(displays);
-  return display_groups.some(group =>
-    group.data.some(display => display.name.trim().toLowerCase() === name.trim().toLowerCase())
-  );
-}
-
-export function add_display(ip: string, mac: string|null, name: string, status: string) {
-    displays.update((displays: DisplayGroup[]) => {
-        displays[0].data.push({ id: get_uuid(), ip, preview_url: null, preview_timeout_id: null, mac, name, status });
-        return displays;
-    });
-}
-
-export function all_displays_of_group_selected(display_group: DisplayGroup, current_selected_displays: string[]) {
-    if (display_group.data.length === 0) return false;
-    for (const display of display_group.data) {
-        if (!is_selected(display.id, current_selected_displays)) {
-            return false;
-        }
-    }
-    return true;
-}
-
-export function select_all_of_group(display_group: DisplayGroup, new_value: boolean | null = null) {
-    for (const display of display_group.data) {
-        select(selected_display_ids, display.id, new_value);
-    }
-}
-
-export function set_new_display_group_data(display_group_id: string, new_data: Display[]) {
-    displays.update((displays: DisplayGroup[]) => {
-        for (const display_group of displays) {
-            if (display_group.id === display_group_id) {
-                display_group.data = new_data;
-            }
-        }
-        return displays;
-    });
-}
-
-export function get_display_by_id(display_id: string, display_group_array: DisplayGroup[]) {
-    const displays_array = display_group_array;
-    for (const display_group of displays_array) {
-        for (const display of display_group.data) {
-            if (display.id === display_id) {
-                return display;
-            }
-        }
-    }
-    return null;
-}
-
-
-export function add_empty_display_group() {
-    displays.update((displays: DisplayGroup[]) => {
-        displays.push({
-            id: get_uuid(),
-            data: [],
-        });
-        return displays;
-    });
-}
-
-
-export function remove_empty_display_groups() {
-    displays.update((displays: DisplayGroup[]) => {
-        for (let i = displays.length - 1; i >= 0; i--) {
-            if (displays[i].data.length === 0) {
-                displays.splice(i, 1);
-            }
-        }
-        return displays;
-    });
-}
-
-export async function update_screenshot(display_id: string, check_type: "first_check" | "last_check_different" | "last_check_same" = "first_check") {
-    const display_ip = get_display_by_id(display_id, get(displays))?.ip;
-    if (!display_ip) return;
-    const new_blob = await get_screenshot(display_ip);
-    const display = get_display_by_id(display_id, get(displays));
-
-    let update_needed = check_type === "first_check";
-    if (check_type !== "first_check") {
-        if (display && display.preview_url) {
-            const old_blob = await fetch(display.preview_url).then(r => r.blob());
-            const new_hash = await image_content_hash(new_blob);
-            const old_hash = await image_content_hash(old_blob);
-            console.log(old_hash, new_hash);
-            update_needed = old_hash !== new_hash; // if different -> update
-        }
-    }
-
-    let new_preview_timeout_id: number | null = null;
-    if (update_needed || check_type === "last_check_different") {
-        new_preview_timeout_id = setTimeout(async () => { await update_screenshot(display_id, update_needed ? "last_check_different" : "last_check_same") }, 2 * 1000);
-    }
-    if (display?.preview_timeout_id) {
-        clearInterval(display.preview_timeout_id);
-    }
-
-    if (update_needed) {
-        displays.update((display_groups) =>
-            display_groups.map((group) => ({
-                ...group,
-                data: group.data.map((display) => {
-                    if (display.id !== display_id) return display;
-                    if (display.preview_url) {
-                        URL.revokeObjectURL(display.preview_url);
-                    }
-                    const new_url = URL.createObjectURL(new_blob);
-                    return { ...display, preview_url: new_url, preview_timeout_id: new_preview_timeout_id };
-                }),
-            }))
-        );
-    }
-}
-
-
-
-
-
-add_testing_displays();
-function add_testing_displays() {
-    // const names = ["Vorne Rechts", "Vorne Links", "Vorne Mitte", "Fernseher Rechts", "Fernseher Bühne", "UIUIUIUIUIUIUISEHRLANGERTEXT DER IST WIRKLICH LANG, DER TEXT, so lang, dass er wirklich nirgendswo hinpasst, nichtmal da oben /\\"];
-    // for (const name of names) {
-    //     add_display("127.0.0.1", "00:1A:2B:3C:4D:5E", name, "Offline");
-    // }
-
-    // add_display("127.0.0.1", "00:1A:2B:3C:4D:5E", "PC", "Offline");
-    // add_display("192.168.178.111", "D4:81:D7:C0:DF:3C", "Laptop", "Online");
-}

control/frontend/src/ts/stores/files.ts

@@ -1,242 +0,0 @@
-import { get, writable, type Writable } from "svelte/store";
-import type { FolderElement } from "../types";
-import { displays } from "./displays";
-import { selected_display_ids, selected_file_ids } from "./select";
-import { get_file_data } from "../api_handler";
-import { get_uuid } from "../utils";
-
-export const all_files: Writable<Record<string, Record<string, FolderElement[]>>> = writable<Record<string, Record<string, FolderElement[]>>>({});
-// {
-// path: {
-//          display_id: FolderElement[]
-//          ...
-//      },
-// path2: {
-//          display_id: FolderElement[]
-//          ...
-//      },
-// ...
-// }
-
-export const current_file_path: Writable<string> = writable<string>('/');
-
-
-export function change_file_path(new_path: string) {
-    current_file_path.update(() => {
-        return new_path;
-    });
-    selected_file_ids.update(() => {
-        return [];
-    })
-}
-
-export function get_display_ids_where_file_is_missing(path: string, file: FolderElement, selected_display_ids: string[], all_files: Record<string, Record<string, FolderElement[]>>): string[][] {
-    if (!all_files.hasOwnProperty(path)) return [];
-    const missing: string[] = [];
-    const colliding: string[] = [];
-    Display:
-    for (const selected_display_id of selected_display_ids) {
-        if (!all_files[path].hasOwnProperty(selected_display_id)) {
-            missing.push(selected_display_id);
-            continue;
-        }
-        for (const folder_element of all_files[path][selected_display_id]) {
-            if (folder_element.name === file.name) {
-                if (folder_element.hash !== file.hash) {
-                    colliding.push(selected_display_id);
-                }
-                continue Display;
-            }
-        }
-        missing.push(selected_display_id);
-    }
-    return [missing, colliding];
-}
-
-
-export function updates_files_on_display(display_id: string, new_folder_elements: FolderElement[], file_path: string) {
-    all_files.update((files) => {
-        if (!files.hasOwnProperty(file_path)) {
-            files[file_path] = {};
-        }
-        for (const new_folder_element of new_folder_elements) {
-            new_folder_element.id = get_uuid();
-        }
-        files[file_path][display_id] = new_folder_elements;
-        return files;
-    });
-}
-
-async function get_files_on_all_displays(current_file_path: string) {
-    for (const display_group of get(displays)) {
-        for (const display of display_group.data) {
-            const new_folder_elements = await get_file_data(display.ip, current_file_path);
-            updates_files_on_display(display.id, new_folder_elements, current_file_path)
-            console.log(new_folder_elements)
-        }
-    }
-}
-
-
-export function get_current_folder_elements(all_files: Record<string, Record<string, FolderElement[]>>, current_file_path: string, selected_display_ids: string[]) {
-    if (!all_files.hasOwnProperty(current_file_path)) {
-        setTimeout(async () => { await get_files_on_all_displays(current_file_path) }, 0);
-        return [];
-    }
-    const files_on_display_array = all_files[current_file_path];
-    const files: FolderElement[] = [];
-    for (const key of Object.keys(files_on_display_array)) {
-        if (selected_display_ids.includes(key)) {
-            FileOnDisplay:
-            for (const file_on_display of files_on_display_array[key]) {
-                for (const existing_file of files) {
-                    if (file_on_display.name === existing_file.name) {
-                        if (file_on_display.hash === existing_file.hash) {
-                            continue FileOnDisplay;
-                        }
-                    }
-                }
-                files.push(file_on_display);
-            }
-        }
-    }
-
-    return sort_files(files);
-}
-
-function sort_files(files: FolderElement[]) {
-    files.sort((a, b) => {
-        const isDirA = a.type === 'inode/directory';
-        const isDirB = b.type === 'inode/directory';
-
-        // Ordner zuerst
-        if (isDirA && !isDirB) return -1;
-        if (!isDirA && isDirB) return 1;
-
-        // Danach alphabetisch nach name (case-insensitive)
-        const nameCompare = a.name.localeCompare(b.name, undefined, { sensitivity: 'base' });
-        if (nameCompare !== 0) return nameCompare;
-
-        // Wenn name gleich, absteigend nach date_created
-        return b.date_created.getTime() - a.date_created.getTime();
-    });
-    return files;
-}
-
-
-
-
-
-
-add_test_files();
-export function add_test_files() {
-    // updates_files_on_display(get(displays)[0].data[0].id, [
-    //     {
-    //         hash: "ok",
-    //         thumbnail: null,
-    //         name: "ok.png",
-    //         type: "image/png",
-    //         date_created: new Date("2022-09-10"),
-    //         size: "32 KB"
-    //     },
-    //     {
-    //         hash: "schön",
-    //         thumbnail: null,
-    //         name: "schön.png",
-    //         type: "image/png",
-    //         date_created: new Date("2023-09-10"),
-    //         size: "2 GB"
-    //     },
-    //     {
-    //         hash: "lang",
-    //         thumbnail: null,
-    //         name: "langer Bildname der wirklich gar nicht mehr aufhört, sodass man mal gut testen kann, wie die UI darauf reagiert.odp",
-    //         type: "application/vnd.oasis.opendocument.presentation",
-    //         date_created: new Date("2028-09-10"),
-    //         size: "324 KB"
-    //     },
-    //     {
-    //         hash: "Schön hier aber waren Sie mal in Baden Würtemberg?",
-    //         thumbnail: null,
-    //         name: "Schön hier aber waren Sie mal in Baden Würtemberg?.mp4",
-    //         type: "video/mp4",
-    //         date_created: new Date("2024-09-10"),
-    //         size: "32 KB"
-    //     },
-    //     {
-    //         hash: "lan4234g",
-    //         thumbnail: null,
-    //         name: "Ein schöner Ordner",
-    //         type: 'inode/directory',
-    //         date_created: new Date("2025-01-02"),
-    //         size: "324 TB"
-    //     },
-    //     {
-    //         hash: "Schön hi23424er aber waren Sie mal in Baden Würtemberg?",
-    //         thumbnail: null,
-    //         name: "Ein hässlicher Ordner",
-    //         type: 'inode/directory',
-    //         date_created: new Date("2025-10-22"),
-    //         size: "1 B"
-    //     },
-    // ], '/');
-
-
-    // updates_files_on_display(get(displays)[0].data[0].id, [
-    //     {
-    //         hash: "ok",
-    //         thumbnail: null,
-    //         name: "ok.png",
-    //         type: "image/png",
-    //         date_created: new Date("2022-09-10"),
-    //         size: "32 KB"
-    //     },
-    //     {
-    //         hash: "schön",
-    //         thumbnail: null,
-    //         name: "schön.png",
-    //         type: "image/png",
-    //         date_created: new Date("2023-09-10"),
-    //         size: "2 GB"
-    //     },
-    // ], '/Ein hässlicher Ordner/');
-
-    // updates_files_on_display(get(displays)[0].data[0].id, [
-    //     {
-    //         hash: "nö",
-    //         thumbnail: null,
-    //         name: "nö.png",
-    //         type: "image/png",
-    //         date_created: new Date("2022-09-10"),
-    //         size: "32 KB"
-    //     },
-    //     {
-    //         hash: "na gut",
-    //         thumbnail: null,
-    //         name: "na gut.png",
-    //         type: "image/png",
-    //         date_created: new Date("2023-09-10"),
-    //         size: "2 GB"
-    //     },
-    // ], '/Ein schöner Ordner/');
-
-
-
-    // updates_files_on_display(get(displays)[0].data[1].id, [
-    //     {
-    //         hash: "okk",
-    //         thumbnail: null,
-    //         name: "ok.png",
-    //         type: "image/png",
-    //         date_created: new Date("2022-09-10"),
-    //         size: "32 KB"
-    //     },
-    //     {
-    //         hash: "schön",
-    //         thumbnail: null,
-    //         name: "schön.png",
-    //         type: "image/png",
-    //         date_created: new Date("2023-09-10"),
-    //         size: "2 GB"
-    //     },], '/');
-}

control/frontend/src/ts/stores/select.ts

@@ -1,23 +0,0 @@
-import { writable, type Writable } from "svelte/store";
-
-export const selected_file_ids: Writable<string[]> = writable<string[]>([]);
-export const selected_display_ids: Writable<string[]> = writable<string[]>([]);
-
-
-export function select(selected_ids: Writable<string[]>, id: string, new_value: boolean | null = null) {
-    selected_ids.update((all_ids: string[]) => {
-        if (all_ids.includes(id)) {
-            const index = all_ids.indexOf(id);
-            if (index > -1 && new_value !== true) {
-                all_ids.splice(index, 1);
-            }
-        } else if (new_value !== false) {
-            all_ids.push(id);
-        }
-        return all_ids;
-    });
-}
-
-export function is_selected(id: string, selected_ids: string[]): boolean {
-    return selected_ids.includes(id);
-}

control/frontend/src/ts/types.ts

@@ -1,89 +0,0 @@
-import { FileBox, FileImage, FileVideoCamera, ImagePlay, type X } from "lucide-svelte";
-
-export type SupportedFileType = {
-    display_name:
-    string; mime_type:
-    string; icon: typeof X;
-};
-
-export const supported_file_types: Record<string, SupportedFileType> = {
-    '.mp4': {
-        display_name: 'MP4',
-        mime_type: 'video/mp4',
-        icon: FileVideoCamera,
-    },
-    '.jpg': {
-        display_name: 'JPG',
-        mime_type: 'image/jpg',
-        icon: FileImage,
-    },
-    '.jpeg': {
-        display_name: 'JPG',
-        mime_type: 'image/jpeg',
-        icon: FileImage,
-    },
-    '.png': {
-        display_name: 'PNG',
-        mime_type: 'image/png',
-        icon: FileImage,
-    },
-    '.gif': {
-        display_name: 'GIF',
-        mime_type: 'image/gif',
-        icon: ImagePlay,
-    },
-    '.pptx': {
-        display_name: 'PPTX',
-        mime_type: 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
-        icon: FileBox,
-    },
-    '.odp': {
-        display_name: 'ODP',
-        mime_type: 'application/vnd.oasis.opendocument.presentation',
-        icon: FileBox,
-    }
-}
-
-export type FolderElement = {
-    id?: string;
-    hash: string | null;
-    thumbnail_url: string | null;
-    name: string;
-    type: string;
-    date_created: Date;
-    size: number;
-}
-
-
-export type Display = {
-    id: string;
-    ip: string;
-    preview_url: string | null;
-    preview_timeout_id: number | null;
-    mac: string|null;
-    name: string;
-    status: string;
-}
-
-export type DisplayGroup = {
-    id: string;
-    data: Display[];
-};
-
-
-export type MenuOption = {
-    icon?: typeof X;
-    name: string;
-    class?: string;
-    on_select?: () => void;
-    disabled?: boolean;
-}
-
-export type PopupContent = {
-    open: boolean;
-    snippet: any;
-    title: string;
-    title_class?: string;
-    title_icon?: typeof X | null;
-    closable?: boolean;
-}

control/frontend/src/ts/utils.ts

@@ -1,42 +0,0 @@
-export function get_uuid(): string {
-    return crypto.randomUUID();
-}
-
-export function get_file_size_display_string(size: number, toFixed: number|null = null): string {
-    if (size === 0) return "0 B";
-
-    const k = 1024;
-    const sizes = ["B", "KB", "MB", "GB", "TB"];
-
-    const i = Math.floor(Math.log(size) / Math.log(k));
-    const value = size / Math.pow(k, i);
-
-    const size_string = `${value.toFixed(toFixed !== null ? toFixed : Math.max(0, 2 - Math.floor(Math.log10(value))))} ${sizes[i]}`;
-
-    return size_string.replace('.', ',');
-}
-
-
-export async function image_content_hash(blob: Blob, size = 32): Promise<number> {
-  // Blob → ImageBitmap (GPU-dekodiert, superschnell)
-  const bitmap = await createImageBitmap(blob);
-
-  // OffscreenCanvas ist sehr schnell (kein Layout nötig)
-  const canvas = new OffscreenCanvas(size, size);
-  const ctx = canvas.getContext("2d")!;
-  ctx.drawImage(bitmap, 0, 0, size, size);
-
-  // Pixel-Daten holen
-  const { data } = ctx.getImageData(0, 0, size, size);
-
-  // Einfacher, schneller Integer-Hash (FNV-1a)
-  let hash = 2166136261;
-  for (let i = 0; i < data.length; i++) {
-    hash ^= data[i];
-    hash = Math.imul(hash, 16777619);
-  }
-
-  bitmap.close(); // GPU-Ressourcen freigeben
-  return hash >>> 0; // unsigned int
-}
-

control/go.mod

@@ -4,16 +4,22 @@ go 1.24.5
 
 require (
 	github.com/labstack/echo/v4 v4.13.4
+	github.com/mdlayher/wol v0.0.0-20220221231636-b763a792253a
 )
 
 require (
+	github.com/josharian/native v1.0.0 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mdlayher/ethernet v0.0.0-20190313224307-5b5fc417d966 // indirect
+	github.com/mdlayher/packet v1.0.0 // indirect
+	github.com/mdlayher/socket v0.2.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
 	golang.org/x/crypto v0.38.0 // indirect
 	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/sync v0.14.0 // indirect
 	golang.org/x/sys v0.33.0 // indirect
 	golang.org/x/text v0.25.0 // indirect
 	golang.org/x/time v0.11.0 // indirect

control/go.sum

@@ -1,3 +1,11 @@
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=
+github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
+github.com/josharian/native v1.0.0 h1:Ts/E8zCSEsG17dUqv7joXJFybuMLjQfWE04tsBODTxk=
+github.com/josharian/native v1.0.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
 github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA=
 github.com/labstack/echo/v4 v4.13.4/go.mod h1:g63b33BZ5vZzcIUF8AtRH40DrTlXnx4UMC8rBdndmjQ=
 github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
@@ -6,18 +14,45 @@ github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHP
 github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mdlayher/ethernet v0.0.0-20190313224307-5b5fc417d966 h1:O3p5UmisBhl3V6lgs4Vdfg8HpjzbWJPyOfGLdwVJSmI=
+github.com/mdlayher/ethernet v0.0.0-20190313224307-5b5fc417d966/go.mod h1:5s5p/sMJ6sNsFl6uCh85lkFGV8kLuIYJCRJLavVJwvg=
+github.com/mdlayher/packet v1.0.0 h1:InhZJbdShQYt6XV2GPj5XHxChzOfhJJOMbvnGAmOfQ8=
+github.com/mdlayher/packet v1.0.0/go.mod h1:eE7/ctqDhoiRhQ44ko5JZU2zxB88g+JH/6jmnjzPjOU=
+github.com/mdlayher/raw v0.0.0-20190313224157-43dbcdd7739d/go.mod h1:r1fbeITl2xL/zLbVnNHFyOzQJTgr/3fpf1lJX/cjzR8=
+github.com/mdlayher/socket v0.2.1 h1:F2aaOwb53VsBE+ebRS9bLd7yPOfYUMC8lOODdCBDY6w=
+github.com/mdlayher/socket v0.2.1/go.mod h1:QLlNPkFR88mRUNQIzRBMfXxwKal8H7u1h3bL1CV+f0E=
+github.com/mdlayher/wol v0.0.0-20220221231636-b763a792253a h1:fpQi42PM6HzbHwNg6a7OvLbh5l49Rgr7GCARozjHwio=
+github.com/mdlayher/wol v0.0.0-20220221231636-b763a792253a/go.mod h1:XX6nvyQpGc8E4KaQm62FyexOYd36ilpyfYf8wjgMDV8=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=
 github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
 golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
+golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
 golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
+golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220209214540-3681064d5158/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
 golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
 golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
 golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

control/main.go

@@ -2,14 +2,39 @@ package main
 
 import (
 	"log/slog"
+	"net"
 	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
 	"plg-mudics/control/frontend"
+	"plg-mudics/shared"
+	"time"
 
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
+	"github.com/mdlayher/wol"
 )
 
+var storageFile string
+
 func main() {
+	var err error
+
+	path, err := getStoragePath()
+	if err != nil {
+		slog.Error("Failed to initialize storage path", "error", err)
+		os.Exit(1)
+	}
+	storageFile = filepath.Join(path, "storage.json")
+	// Ensure storage.json exists
+	if _, err := os.Stat(storageFile); os.IsNotExist(err) {
+		if err := os.WriteFile(storageFile, []byte("{}"), 0644); err != nil {
+			slog.Error("Failed to initialize storage.json", "error", err)
+			os.Exit(1)
+		}
+	}
+
 	e := echo.New()
 
 	// Serve the embedded SvelteKit frontend
@@ -20,12 +45,76 @@ func main() {
 
 	// Servers all API endpoints, e.g. our custom logic
 	apiGroup := e.Group("/api")
-	apiGroup.GET("/ping", func(ctx echo.Context) error {
+	apiGroup.GET("/ping", pingRoute)
-		return ctx.String(http.StatusOK, "pong")
+	apiGroup.POST("/wakeOnLan", wakeOnLanRoute)
-	})
+	apiGroup.GET("/storage", getStorageRoute)
+	apiGroup.POST("/storage", setStorageRoute)
 
-	err := e.Start(":1323")
+	port := "8080"
+
+	// the order is important, the open browser command exitsts as soon as the winodw is closed
+	// and since its the last action in the main go func all other goroutines (e.g. the webserver) are killed
+	go func() {
+		err := e.Start(":" + port)
+		if err != nil {
+			slog.Error("Failed to start Echo Webserver", "error", err)
+			os.Exit(1)
+		}
+	}()
+	err = shared.OpenBrowserWindow("http://localhost:"+port, false, false)
 	if err != nil {
-		slog.Error("Failed to start Echo Webserver", "error", err)
+		slog.Error("Failed to open browser window", "error", err)
+		os.Exit(1)
 	}
 }
+
+func pingRoute(ctx echo.Context) error {
+	ip := ctx.QueryParam("ip")
+	if ip == "" {
+		return ctx.JSON(http.StatusBadRequest, PingResponse{Error: "missing 'ip' query parameter"})
+	}
+
+	cmd := exec.Command("ping", "-c", "1", "-w", "1", ip)
+	result := shared.RunShellCommand(cmd)
+	if result.ExitCode != 0 {
+		return ctx.JSON(http.StatusOK, PingResponse{Status: "host_offline"})
+	}
+
+	conn, err := net.DialTimeout("tcp", ip+":1323", 1*time.Second)
+	if err != nil {
+		return ctx.JSON(http.StatusOK, PingResponse{Status: "app_offline"})
+	}
+	conn.Close()
+
+	return ctx.JSON(http.StatusOK, PingResponse{Status: "app_online"})
+}
+
+type PingResponse struct {
+	Status string `json:"status"`
+	Error  string `json:"error"`
+}
+
+type WakeOnLanRequest struct {
+	MACAddress string `json:"mac_address"`
+}
+
+func wakeOnLanRoute(ctx echo.Context) error {
+	var data WakeOnLanRequest
+	if err := ctx.Bind(&data); err != nil {
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
+	}
+	mac, err := net.ParseMAC(data.MACAddress)
+	if err != nil {
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid MAC address"})
+	}
+
+	client, err := wol.NewClient()
+	if err != nil {
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to create Wake-on-LAN client"})
+	}
+	if err := client.Wake("255.255.255.255", mac); err != nil {
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to send Wake-on-LAN packet"})
+	}
+
+	return ctx.JSON(http.StatusOK, struct{}{})
+}

control/requests/Get Store.bru

@@ -0,0 +1,16 @@
+meta {
+  name: Get Store
+  type: http
+  seq: 2
+}
+
+get {
+  url: http://localhost:8080/api/storage
+  body: none
+  auth: inherit
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/requests/Set Store.bru

@@ -0,0 +1,22 @@
+meta {
+  name: Set Store
+  type: http
+  seq: 3
+}
+
+post {
+  url: http://localhost:8080/api/storage
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "key": "value"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/requests/bruno.json

@@ -0,0 +1,9 @@
+{
+  "version": "1",
+  "name": "PLG-MuDiCS Control",
+  "type": "collection",
+  "ignore": [
+    "node_modules",
+    ".git"
+  ]
+}

control/requests/ping.bru

@@ -0,0 +1,20 @@
+meta {
+  name: ping
+  type: http
+  seq: 1
+}
+
+get {
+  url: http://127.0.0.1:8080/api/ping?ip=127.0.0.1
+  body: none
+  auth: inherit
+}
+
+params:query {
+  ip: 127.0.0.1
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/requests/wakeOnLan.bru

@@ -0,0 +1,22 @@
+meta {
+  name: wakeOnLan
+  type: http
+  seq: 4
+}
+
+post {
+  url: http://localhost:8080/api/wakeOnLan
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "mac_address": "aa:aa:aa:aa:aa:aa"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/storage.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"os"
+	"path/filepath"
+	"plg-mudics/shared"
+
+	"github.com/labstack/echo/v4"
+)
+
+func getStorageRoute(ctx echo.Context) error {
+	data, err := os.ReadFile(storageFile)
+	if err != nil {
+		slog.Error("Could not read storage file", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Could not read storage file"})
+	}
+
+	var content interface{}
+	if err := json.Unmarshal(data, &content); err != nil {
+		slog.Error("Could not parse storage file", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Could not parse storage file"})
+	}
+
+	return ctx.JSON(http.StatusOK, content)
+}
+
+func setStorageRoute(ctx echo.Context) error {
+	var payload interface{}
+	if err := ctx.Bind(&payload); err != nil {
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid JSON payload"})
+	}
+
+	data, err := json.MarshalIndent(payload, "", "  ")
+	if err != nil {
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to marshal storage file"})
+	}
+	if err := os.WriteFile(storageFile, data, 0644); err != nil {
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to write storage file"})
+	}
+
+	return ctx.JSON(http.StatusOK, map[string]interface{}{})
+}
+
+func getStoragePath() (string, error) {
+	var storagePath string
+
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return "", fmt.Errorf("unable to determine user home directory: %w", err)
+	}
+	storagePath = filepath.Join(home, ".local", "share", "plg-mudics", "control")
+	if err := os.MkdirAll(storagePath, os.ModePerm); err != nil {
+		return "", fmt.Errorf("failed to create local config directory: %w", err)
+	}
+
+	return storagePath, nil
+}

display/README.md

@@ -1,16 +1,103 @@
-# PLG-MuDICS Display
+# API
 
-## Runtime Requirements
+All response and request bodies are `application/json` if not otherwise specified. If no response schema is specified an empty json object `{}` is returned.
 
-- Bash
+## Default
-- Chromium
-- LibreOffice (presentation view)
-- ImageMagick (file preview)
-- ffmpeg (file preview)
-- Ghostscript (file preview)
 
-## Development Setup
+### Responses
 
-- install Go (at least version v1.24)
+#### All Errors
-- build template: `go tool templ generate`
+
-- run code: `go run .`
+If not specified otherwise.
+
+- `description`: string
+
+#### 400
+
+Request uses invalid JSON syntax or does not follow request schema.
+
+#### 500
+
+Something (undefined) on the display side has gone very wrong.
+
+## GET `/ping`
+
+### Responses
+
+#### 200
+
+- `version`: str
+
+## PATCH `/shellCommand`
+
+### Responses
+
+#### 200
+
+Even when the command itself fails.
+
+- `stdout`: string
+- `stderr`: string
+- `exitCode`: int
+
+## PATCH `/keyboardInput`
+
+### Request Body
+
+- `inputs`: list
+  - `key`: string for key
+  - `action`: "press" or "release"
+
+## PATCH `/showHTML`
+
+### Request Body
+
+- `html`: string
+
+## PATCH `/takeScreenshot`
+
+### Responses
+
+#### 200
+
+The screenshot as binary in the response body.
+
+## POST `/file/<path>` - Upload File
+
+### Responses
+
+#### 409 - Conflict
+
+File with the same path and name already exists.
+
+## GET `/file/<path>`
+
+### Responses
+
+#### 404
+
+Requested file was not found at the path.
+
+## PATCH `/file/<path>` - Open File
+
+### Responses
+
+#### 404
+
+Requested file was not found at the path.
+
+#### 415 - Unsupported Media Type
+
+The type of the file is not available for display.
+
+## GET `/file/preview/<path>`
+
+### Responses
+
+#### 404
+
+Requested file was not found at the path.
+
+#### 415 - Unsupported Media Type
+
+The type of the file is not available preview generation.

display/go.mod

@@ -3,13 +3,15 @@ module plg-mudics/display
 go 1.24.4
 
 require (
+	github.com/a-h/templ v0.3.960
 	github.com/labstack/echo/v4 v4.13.4
 	github.com/micmonay/keybd_event v1.1.2
+	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
+	github.com/gabriel-vasile/mimetype v1.4.11
 )
 
 require (
 	github.com/a-h/parse v0.0.0-20250122154542-74294addb73e // indirect
-	github.com/a-h/templ v0.3.924 // indirect
 	github.com/andybalholm/brotli v1.1.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cli/browser v1.3.0 // indirect
@@ -21,13 +23,14 @@ require (
 	github.com/natefinch/atomic v1.0.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	golang.org/x/crypto v0.38.0 // indirect
+	golang.org/x/crypto v0.40.0 // indirect
-	golang.org/x/mod v0.24.0 // indirect
+	golang.org/x/mod v0.26.0 // indirect
-	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/net v0.42.0 // indirect
-	golang.org/x/sync v0.14.0 // indirect
+	golang.org/x/sync v0.16.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
-	golang.org/x/text v0.25.0 // indirect
+	golang.org/x/text v0.27.0 // indirect
-	golang.org/x/tools v0.32.0 // indirect
+	golang.org/x/time v0.11.0 // indirect
+	golang.org/x/tools v0.35.0 // indirect
 )
 
 tool github.com/a-h/templ/cmd/templ

display/go.sum

@@ -1,7 +1,7 @@
 github.com/a-h/parse v0.0.0-20250122154542-74294addb73e h1:HjVbSQHy+dnlS6C3XajZ69NYAb5jbGNfHanvm1+iYlo=
 github.com/a-h/parse v0.0.0-20250122154542-74294addb73e/go.mod h1:3mnrkvGpurZ4ZrTDbYU84xhwXW2TjTKShSwjRi2ihfQ=
-github.com/a-h/templ v0.3.924 h1:t5gZqTneXqvehpNZsgtnlOscnBboNh9aASBH2MgV/0k=
+github.com/a-h/templ v0.3.960 h1:trshEpGa8clF5cdI39iY4ZrZG8Z/QixyzEyUnA7feTM=
-github.com/a-h/templ v0.3.924/go.mod h1:FFAu4dI//ESmEN7PQkJ7E7QfnSEMdcnu7QrAY8Dn334=
+github.com/a-h/templ v0.3.960/go.mod h1:oCZcnKRf5jjsGpf2yELzQfodLphd2mwecwG4Crk5HBo=
 github.com/andybalholm/brotli v1.1.0 h1:eLKJA0d02Lf0mVpIDgYnqXcUn0GqVmEFny3VuID1U3M=
 github.com/andybalholm/brotli v1.1.0/go.mod h1:sms7XGricyQI9K10gOSf56VKKWS4oLer58Q+mhRPtnY=
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
@@ -14,6 +14,10 @@ github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+github.com/gabriel-vasile/mimetype v1.4.11 h1:AQvxbp830wPhHTqc1u7nzoLT+ZFxGY7emj5DR5DYFik=
+github.com/gabriel-vasile/mimetype v1.4.11/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA=
 github.com/labstack/echo/v4 v4.13.4/go.mod h1:g63b33BZ5vZzcIUF8AtRH40DrTlXnx4UMC8rBdndmjQ=
 github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
@@ -28,26 +32,30 @@ github.com/natefinch/atomic v1.0.1 h1:ZPYKxkqQOx3KZ+RsbnP/YsgvxWQPGxjC0oBt2AhwV0
 github.com/natefinch/atomic v1.0.1/go.mod h1:N/D/ELrljoqDyT3rZrsUmtsuzvHkeB/wWjHV22AZRbM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=
 github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
-golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
+golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
-golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
+golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
-golang.org/x/mod v0.24.0 h1:ZfthKaKaT4NrhGVZHO1/WDTwGES4De8KtWO0SIbNJMU=
+golang.org/x/mod v0.26.0 h1:EGMPT//Ezu+ylkCijjPc+f4Aih7sZvaAr+O3EHBxvZg=
-golang.org/x/mod v0.24.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
+golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
-golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
+golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
-golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
+golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
-golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
+golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
-golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
-golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
-golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
+golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
-golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
+golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
-golang.org/x/tools v0.32.0 h1:Q7N1vhpkQv7ybVzLFtTjvQya2ewbwNDZzUgfXGqtMWU=
+golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
-golang.org/x/tools v0.32.0/go.mod h1:ZxrU41P/wAbZD8EDa6dDCa6XfpkhJ7HFMjHJXfBDu8s=
+golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/tools v0.35.0 h1:mBffYraMEf7aa0sB+NuKnuCy8qI/9Bughn8dC2Gu5r0=
+golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

display/main.go

@@ -6,6 +6,7 @@ import (
 
 	"plg-mudics/display/pkg"
 	"plg-mudics/display/web"
+	"plg-mudics/shared"
 )
 
 const VERSION = "0.1.0"
@@ -22,10 +23,12 @@ func main() {
 		os.Exit(1)
 		return
 	}
+	port := "1323"
 
-	go web.StartWebServer(VERSION)
+	// the order is important, the open browser command exitsts as soon as the winodw is closed
-
+	// and since its the last action in the main go func all other goroutines (e.g. the webserver) are killed
-	err = pkg.OpenBrowserWindow("http://127.0.0.1:1323")
+	go web.StartWebServer(VERSION, port)
+	err = shared.OpenBrowserWindow("http://localhost:"+port, true, true)
 	if err != nil {
 		slog.Error("Failed to open browser window", "error", err)
 		os.Exit(1)

display/pkg/file_handler.go

@@ -0,0 +1,63 @@
+package pkg
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"plg-mudics/shared"
+	"syscall"
+
+	"github.com/gabriel-vasile/mimetype"
+)
+
+var FileHandler fileHandler = fileHandler{}
+
+type fileHandler struct {
+	runningProgram *exec.Cmd
+}
+
+func (fh *fileHandler) OpenFile(path string) error {
+	var err error
+
+	mType, err := mimetype.DetectFile(path)
+	if err != nil {
+		return fmt.Errorf("failed to detect mime type: %w", err)
+	}
+
+	tempDirPath, err := os.MkdirTemp("", "plg-mudics-program-profile-")
+	if err != nil {
+		return fmt.Errorf("failed to create temporary profile directory: %w", err)
+	}
+
+	err = fh.CloseRunningProgram()
+	if err != nil {
+		return err
+	}
+
+	switch mType.String() {
+	case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
+		fh.runningProgram = exec.Command("soffice", "--show", path, "--nologo", "--view", "--norestore", fmt.Sprintf("-env:UserInstallation=file://%s", tempDirPath))
+	case "application/pdf":
+		fh.runningProgram = exec.Command("xreader", path, "--presentation")
+	default:
+		return fmt.Errorf("unsupported file type: %s", mType.String())
+	}
+
+	fh.runningProgram.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+	result := shared.RunShellCommandNonBlocking(fh.runningProgram)
+	if result.ExitCode != 0 {
+		return fmt.Errorf("could not open pdf: %s (%d)", result.Stderr, result.ExitCode)
+	}
+
+	return nil
+}
+
+func (fh *fileHandler) CloseRunningProgram() error {
+	if fh.runningProgram == nil {
+		return nil
+	}
+	err := syscall.Kill(-fh.runningProgram.Process.Pid, syscall.SIGTERM)
+	fh.runningProgram = nil
+	return err
+}

display/pkg/file_preview.go

@@ -6,11 +6,13 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"plg-mudics/shared"
 	"strings"
 	"time"
 )
-var ErrFileTypePreviewNotSupported = errors.New("file type not supported for preview");
+
-var ErrFilePreviewToolsMissing = errors.New("required tools for file preview are missing");
+var ErrFileTypePreviewNotSupported = errors.New("file type not supported for preview")
+var ErrFilePreviewToolsMissing = errors.New("required tools for file preview are missing")
 
 func GenerateFilePreview(inputPath string) (string, error) {
 	var err error
@@ -35,8 +37,8 @@ func GenerateFilePreview(inputPath string) (string, error) {
 }
 
 func generateImagePreview(inputPath string, outputPath string) error {
-	cmd := exec.Command("magick", inputPath, "-thumbnail", "100x100", "-quality", "50", outputPath)
+	cmd := exec.Command("magick", inputPath, "-gravity", "center", "-crop", "1:1", "-thumbnail", "100", "-quality", "50", outputPath)
-	result := RunShellCommand(cmd)
+	result := shared.RunShellCommand(cmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {
 			return ErrFilePreviewToolsMissing
@@ -48,12 +50,12 @@ func generateImagePreview(inputPath string, outputPath string) error {
 
 func generatePDFPreview(inputPath string, outputPath string) error {
 	testCmd := exec.Command("which", "gs")
-	if result := RunShellCommand(testCmd); result.ExitCode != 0 {
+	if result := shared.RunShellCommand(testCmd); result.ExitCode != 0 {
 		return ErrFilePreviewToolsMissing
 	}
 
-	cmd := exec.Command("magick", fmt.Sprintf("%s[0]", inputPath), "-thumbnail", "100x100", "-quality", "50", outputPath)
+	cmd := exec.Command("magick", fmt.Sprintf("%s[0]", inputPath), "-gravity", "center", "-crop", "1:1", "-thumbnail", "100x100", "-quality", "50", outputPath)
-	result := RunShellCommand(cmd)
+	result := shared.RunShellCommand(cmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {
 			return ErrFilePreviewToolsMissing
@@ -67,7 +69,7 @@ func generateVideoPreview(inputPath string, outputPath string) error {
 	tempFilePath := filepath.Join(os.TempDir(), fmt.Sprintf("preview_temp_%d.webp", time.Now().Unix()))
 
 	ffmpegCmd := exec.Command("ffmpeg", "-i", inputPath, "-ss", "00:00:01.000", "-vframes", "1", tempFilePath)
-	result := RunShellCommand(ffmpegCmd)
+	result := shared.RunShellCommand(ffmpegCmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {
 			return ErrFilePreviewToolsMissing

display/pkg/main.go

@@ -1,7 +1,6 @@
 package pkg
 
 import (
-	"bytes"
 	"errors"
 	"fmt"
 	"log/slog"
@@ -12,15 +11,11 @@ import (
 	"strings"
 	"time"
 
+	"plg-mudics/shared"
+
 	"github.com/micmonay/keybd_event"
 )
 
-type CommandResponse struct {
-	Stdout   string `json:"stdout"`
-	Stderr   string `json:"stderr"`
-	ExitCode int    `json:"exitCode"`
-}
-
 func GetDeviceIp() (string, error) {
 	addrs, err := net.InterfaceAddrs()
 	if err != nil {
@@ -52,24 +47,41 @@ func GetDeviceMac() (string, error) {
 	return "", fmt.Errorf("no suitable MAC address found")
 }
 
-func OpenPresentation(path string) error {
+type KeyAction int
-	cmd := exec.Command("bash", "-c", "-r", fmt.Sprintf("soffice --show %s -nologo -norestore", path))
+
-	result := RunShellCommand(cmd)
+const (
-	if result.ExitCode != 0 {
+	KeyPress KeyAction = iota
-		return errors.New(result.Stderr)
+	KeyRelease
-	}
+)
-	return nil
+
+type Input struct {
+	Key    int
+	Action KeyAction
 }
 
-func KeyboardInput(key int) error {
+func KeyboardInput(inputs []Input) error {
+	var err error
+
 	kb, err := keybd_event.NewKeyBonding()
 	if err != nil {
 		return fmt.Errorf("failed to create key bonding: %w", err)
 	}
-	kb.SetKeys(key)
 
-	if err := kb.Launching(); err != nil {
+	for _, input := range inputs {
-		return fmt.Errorf("failed to launch key event: %w", err)
+		kb.SetKeys(input.Key)
+
+		switch input.Action {
+		case KeyPress:
+			err = kb.Press()
+		case KeyRelease:
+			err = kb.Release()
+		}
+
+		if err != nil {
+			return fmt.Errorf("failed to run key event: %w", err)
+		}
+
+		time.Sleep(time.Microsecond * 100)
 	}
 
 	return nil
@@ -84,7 +96,7 @@ func TakeScreenshot() (string, error) {
 		exec.Command("spectacle", "--fullscreen", "--nonotify", "--background", "--output", tempFilePath),
 	}
 	for _, cmd := range cmds {
-		commandOutput := RunShellCommand(cmd)
+		commandOutput := shared.RunShellCommand(cmd)
 		if commandOutput.ExitCode == 0 {
 			return tempFilePath, nil
 		}
@@ -93,46 +105,6 @@ func TakeScreenshot() (string, error) {
 	return "", errors.New("no screenshot utility found or all failed")
 }
 
-func RunShellCommand(cmd *exec.Cmd) CommandResponse {
-	var stdout, stderr bytes.Buffer
-	cmd.Stdout = &stdout
-	cmd.Stderr = &stderr
-	err := cmd.Run()
-
-	commandOutput := CommandResponse{
-		Stdout:   stdout.String(),
-		Stderr:   stderr.String(),
-		ExitCode: cmd.ProcessState.ExitCode(),
-	}
-	if err != nil {
-		var exitErr *exec.ExitError
-		if errors.As(err, &exitErr) {
-			commandOutput.ExitCode = exitErr.ExitCode()
-		} else {
-			commandOutput.Stderr = err.Error()
-		}
-	}
-
-	return commandOutput
-}
-
-func OpenBrowserWindow(url string) error {
-	template := "%s --app='%s' --start-fullscreen --user-data-dir=$(mktemp -d) --autoplay-policy=no-user-gesture-required"
-
-	cmds := []*exec.Cmd{
-		exec.Command("bash", "-c", fmt.Sprintf(template, "chromium", url)),
-		exec.Command("bash", "-c", fmt.Sprintf(template, "chromium-browser", url)),
-	}
-	for _, cmd := range cmds {
-		commandOutput := RunShellCommand(cmd)
-		if commandOutput.ExitCode == 0 {
-			return nil
-		}
-	}
-
-	return errors.New("chromium not found in PATH")
-}
-
 func GetStoragePath() (string, error) {
 	var storagePath string
 
@@ -140,7 +112,7 @@ func GetStoragePath() (string, error) {
 	if err != nil {
 		return "", fmt.Errorf("unable to determine user home directory: %w", err)
 	}
-	storagePath = filepath.Join(home, ".local", "share", "plg-connect-display")
+	storagePath = filepath.Join(home, ".local", "share", "plg-mudics", "display")
 	if err := os.MkdirAll(storagePath, os.ModePerm); err != nil {
 		return "", fmt.Errorf("failed to create local config directory: %w", err)
 	}
@@ -178,4 +150,3 @@ func ResolveStorageFilePath(pathParam string) (string, bool, error) {
 
 	return fullPath, true, nil
 }
-

display/requests/bruno.json

@@ -1,6 +1,9 @@
 {
   "version": "1",
-  "name": "PLG-MuDICS",
+  "name": "PLG-MuDiCS Display",
   "type": "collection",
-  "ignore": ["node_modules", ".git"]
+  "ignore": [
+    "node_modules",
+    ".git"
+  ]
 }

display/requests/keyboardInput.bru

@@ -12,10 +12,16 @@ patch {
 
 body:json {
   {
-    "key":  "VK_T"
+    "inputs": [
+      {
+        "key": "VK_T",
+        "action": "press"
+      }
+    ]
   }
 }
 
 settings {
   encodeUrl: true
+  timeout: 0
 }

display/web/embed.go

@@ -0,0 +1,12 @@
+package web
+
+import (
+	"embed"
+	"io/fs"
+)
+
+//go:embed all:static
+var staticDir embed.FS
+
+// BuildDirFS contains the embedded dist directory files (without the "build" prefix)
+var StaticDirFS, _ = fs.Sub(staticDir, "static")

display/web/main.go

@@ -5,39 +5,29 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"image/color"
 	"io"
 	"log/slog"
+	"net"
 	"net/http"
+	"net/url"
 	"os"
 	"os/exec"
 	"path/filepath"
 	shared "plg-mudics/shared"
-	"strings"
 
+	"github.com/gabriel-vasile/mimetype"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
-	"github.com/micmonay/keybd_event"
+	"github.com/skip2/go-qrcode"
 
 	"plg-mudics/display/pkg"
 )
 
-type ErrorResponse struct {
-	Error string `json:"error"`
-}
-
 var version string
 var sseConnection chan string
-var supportedExtensions = map[string]bool{
-	".mp4":  true,
-	".jpg":  true,
-	".jpeg": true,
-	".png":  true,
-	".gif":  true,
-	".pptx": true,
-	".odp":  true,
-}
 
-func StartWebServer(v string) {
+func StartWebServer(v string, port string) {
 	version = v
 
 	e := echo.New()
@@ -47,6 +37,13 @@ func StartWebServer(v string) {
 	e.GET("/splash", func(ctx echo.Context) error {
 		return ctx.HTML(http.StatusOK, shared.SplashScreenTemplate)
 	})
+	e.GET("/qr", qrRoute)
+
+	staticGroup := e.Group("/static")
+	staticGroup.Use(middleware.StaticWithConfig(middleware.StaticConfig{
+		Filesystem: http.FS(StaticDirFS),
+		HTML5:      true,
+	}))
 
 	apiGroup := e.Group("/api")
 	apiGroup.Use(middleware.CORS())
@@ -63,7 +60,7 @@ func StartWebServer(v string) {
 	fileGroup.PATCH("/:path", openFileRoute)
 	fileGroup.GET("/preview/:path", previewRoute)
 
-	err := e.Start(":1323")
+	err := e.Start(":" + port)
 	if err != nil {
 		slog.Error("Failed to start server", "error", err)
 	}
@@ -94,8 +91,9 @@ func sseRoute(ctx echo.Context) error {
 	if err != nil {
 		slog.Error("Failed to get device MAC address", "error", err)
 	}
+	showQR := !isPortFree(8080)
 	var status bytes.Buffer
-	deviceInfoTemplate(ip, mac).Render(context.Background(), &status)
+	deviceInfoTemplate(ip, mac, showQR).Render(context.Background(), &status)
 	connectedEvent := Event{
 		Data: status.Bytes(),
 	}
@@ -124,14 +122,45 @@ func sseRoute(ctx echo.Context) error {
 	}
 }
 
+func qrRoute(c echo.Context) error {
+	data := c.QueryParam("data")
+	if data == "" {
+		return c.String(http.StatusBadRequest, "missing data")
+	}
+
+	qr, err := qrcode.New(data, qrcode.Medium)
+	if err != nil {
+		return c.String(http.StatusInternalServerError, "could not generate qr")
+	}
+
+	qr.DisableBorder = true
+	qr.ForegroundColor = color.RGBA{R: 0x1c, G: 0x19, B: 0x17, A: 0xff}
+	qr.BackgroundColor = color.RGBA{R: 0xe7, G: 0xe5, B: 0xe4, A: 0xff}
+
+	png, err := qr.PNG(-1)
+	if err != nil {
+		return c.String(http.StatusInternalServerError, "could not encode png")
+	}
+
+	return c.Blob(http.StatusOK, "image/png", png)
+}
+
 func extractFilePathMiddleware(next echo.HandlerFunc) echo.HandlerFunc {
 	return func(ctx echo.Context) error {
-		pathParam := ctx.Param("path")
+		raw := ctx.Param("path")
-		fullPath, exists, err := pkg.ResolveStorageFilePath(pathParam)
+
+		decoded, err := url.PathUnescape(raw)
 		if err != nil {
-			slog.Warn("Failed to validate file path", "path", pathParam, "error", err)
+			slog.Warn("Invalid path encoding", "path", raw, "error", err)
-			return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid file path"})
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid file path"})
 		}
+
+		fullPath, exists, err := pkg.ResolveStorageFilePath(decoded)
+		if err != nil {
+			slog.Warn("Failed to validate file path", "path", decoded, "error", err)
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid file path"})
+		}
+
 		ctx.Set("fullPath", fullPath)
 		ctx.Set("fileExists", exists)
 		return next(ctx)
@@ -144,18 +173,18 @@ func shellCommandRoute(ctx echo.Context) error {
 	}
 	if err := ctx.Bind(&commandInput); err != nil {
 		slog.Error("Failed to parse shell command", "error", err)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid JSON request"})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
 	cmd := exec.Command("bash", "-c", commandInput.Command)
 	storagePath, err := pkg.GetStoragePath()
 	if err != nil {
 		slog.Error("Failed to get storage path", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to get storage path"})
 	}
 	cmd.Dir = storagePath
 
-	commandOutput := pkg.RunShellCommand(cmd)
+	commandOutput := shared.RunShellCommand(cmd)
 	if commandOutput.ExitCode != 0 {
 		slog.Error("Shell command execution error", "error", commandOutput.Stderr)
 	}
@@ -166,117 +195,169 @@ func shellCommandRoute(ctx echo.Context) error {
 
 func keyboardInputRoute(ctx echo.Context) error {
 	var request struct {
-		Key string `json:"key"`
+		Inputs []struct {
+			Key    string `json:"key"`
+			Action string `json:"action"`
+		} `json:"inputs"`
 	}
 	if err := ctx.Bind(&request); err != nil {
 		slog.Error("Failed to parse keyboard input", "error", err)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid JSON request"})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
-	code, ok := pkg.KeyboardEvents[request.Key]
+	var inputs []pkg.Input
-	if !ok {
+
-		slog.Error("Unsupported key", "key", request.Key)
+	for _, input := range request.Inputs {
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: fmt.Sprintf("Unsupported key: %s", request.Key)})
+		if input.Action != "press" && input.Action != "release" {
+			slog.Error("Invalid keyboard action", "action", input.Action)
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: fmt.Sprintf("Invalid action: %s", input.Action)})
+		}
+
+		code, ok := pkg.KeyboardEvents[input.Key]
+		if !ok {
+			slog.Error("Unsupported key", "key", input.Key)
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: fmt.Sprintf("Unsupported key: %s", input.Key)})
+		}
+
+		var action pkg.KeyAction
+		if input.Action == "press" {
+			action = pkg.KeyPress
+		}
+		if input.Action == "release" {
+			action = pkg.KeyRelease
+		}
+
+		inputs = append(inputs, pkg.Input{
+			Key:    code,
+			Action: action,
+		})
 	}
 
-	err := pkg.KeyboardInput(code)
+	err := pkg.KeyboardInput(inputs)
 	if err != nil {
-		slog.Error("Failed to send keyboard input", "key", request.Key, "error", err)
+		slog.Error("Failed to send keyboard input", "inputs", inputs, "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to send keyboard input"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to send keyboard input"})
 	}
 
-	slog.Info("Keyboard input sent", "key", request.Key)
+	slog.Info("Keyboard input sent")
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "Success"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func uploadFileRoute(ctx echo.Context) error {
+	var err error
+
 	fullPath := ctx.Get("fullPath").(string)
 
 	// Ensure parent directories exist
 	if err := os.MkdirAll(filepath.Dir(fullPath), os.ModePerm); err != nil {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to prepare storage directory"})
+		slog.Error("Failed to create storage path", "error", err, "path", fullPath)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to prepare storage directory"})
 	}
 
 	if ctx.Get("fileExists").(bool) {
-		return ctx.JSON(http.StatusConflict, ErrorResponse{Error: "File already exists"})
+		return ctx.JSON(http.StatusConflict, shared.ErrorResponse{Description: "File already exists"})
 	}
 
-	ext := strings.ToLower(filepath.Ext(fullPath))
+	file, err := os.Create(fullPath)
-	if !supportedExtensions[ext] {
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: fmt.Sprintf("Unsupported file extension: %s", ext)})
-	}
-
-	data, err := io.ReadAll(ctx.Request().Body)
 	if err != nil {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to read file body"})
+		slog.Error("Failed to create file", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to create file"})
+	}
+	defer func() {
+		fileCloseErr := file.Close()
+		if fileCloseErr != nil {
+			slog.Error("Failed to close file", "file", fullPath, "error", fileCloseErr)
+		}
+		if err != nil {
+			os.Remove(fullPath)
+		}
+	}()
+
+	_, err = io.Copy(file, ctx.Request().Body)
+	if err != nil {
+		slog.Error("Failed to write file", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to write file"})
 	}
 
-	if err := os.WriteFile(fullPath, data, os.ModePerm); err != nil {
+	err = file.Sync() // ensure data is flushed to disk
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to save file"})
+	if err != nil {
+		slog.Error("Failed to sync file to disk", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to save file"})
 	}
 
 	slog.Info("File uploaded successfully", "path", fullPath)
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "File uploaded successfully"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func downloadFileRoute(ctx echo.Context) error {
 	fullPath := ctx.Get("fullPath").(string)
 
 	if !ctx.Get("fileExists").(bool) {
-		return ctx.JSON(http.StatusNotFound, ErrorResponse{Error: "File not found"})
+		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
-	err := ctx.File(fullPath)
+	slog.Info("Serving file for download", "path", fullPath)
+
+	file, err := os.Open(fullPath)
 	if err != nil {
-		slog.Error("Failed to serve file", "file", fullPath, "error", err)
+		slog.Error("Failed to open file", "file", fullPath, "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open file"})
 	}
+	defer file.Close()
 
-	slog.Info("File downloaded successfully", "path", fullPath)
+	return ctx.Stream(http.StatusOK, "application/octet-stream", file)
-	return nil
 }
 
 func openFileRoute(ctx echo.Context) error {
+	var err error
+
 	pathParam := ctx.Param("path")
 	fullPath := ctx.Get("fullPath").(string)
 
 	if !ctx.Get("fileExists").(bool) {
-		return ctx.JSON(http.StatusNotFound, ErrorResponse{Error: "File not found"})
+		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
 	if sseConnection == nil {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Cant connect to display browser client"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Cant connect to display browser client"})
 	}
 
-	err := resetView()
+	err = resetView()
 	if err != nil {
 		slog.Error("Failed to reset view", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to reset view"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to reset view"})
 	}
 
-	ext := strings.ToLower(filepath.Ext(fullPath))
+	mType, err := mimetype.DetectFile(fullPath)
-	switch ext {
+	if err != nil {
-	case ".mp4":
+		slog.Error("Failed to detect mime type", "file", pathParam, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to detect file type"})
+	}
+
+	switch mType.String() {
+	case "video/mp4":
 		var templateBuffer bytes.Buffer
 		videoTemplate(pathParam).Render(context.Background(), &templateBuffer)
 
 		sseConnection <- templateBuffer.String()
-	case ".jpg", ".jpeg", ".png", ".gif":
+	case "image/jpeg", "image/png", "image/gif":
 		var templateBuffer bytes.Buffer
 		imageTemplate(pathParam).Render(context.Background(), &templateBuffer)
 		sseConnection <- templateBuffer.String()
-	case ".pptx", ".odp":
+	case "application/pdf", "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
-		err := pkg.OpenPresentation(fullPath)
+		err = pkg.FileHandler.OpenFile(fullPath)
-		if err != nil {
-			slog.Error("Failed to open presentation", "file", pathParam, "error", err)
-			return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to open presentation"})
-		}
 	default:
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Unsupported file type"})
+		slog.Info("Unsupported file type", "type", mType)
+		return ctx.JSON(http.StatusUnsupportedMediaType, shared.ErrorResponse{Description: "Unsupported file type: " + mType.String()})
+	}
+
+	if err != nil {
+		slog.Error("Failed to open file", "file", pathParam, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open file"})
 	}
 
 	slog.Info("Successfully run file", "file", pathParam)
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "Success"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func showHTMLRoute(ctx echo.Context) error {
@@ -285,19 +366,19 @@ func showHTMLRoute(ctx echo.Context) error {
 	}
 	if err := ctx.Bind(&request); err != nil {
 		slog.Error("Failed to parse request", "error", err)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid JSON request"})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
 	err := resetView()
 	if err != nil {
 		slog.Error("Failed to reset view", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to reset view"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to reset view"})
 	}
 
 	sseConnection <- request.HTML
 
 	slog.Info("HTML content sent to client")
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "Success"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func pingRoute(ctx echo.Context) error {
@@ -312,13 +393,13 @@ func takeScreenshotRoute(ctx echo.Context) error {
 	screenshotPath, err := pkg.TakeScreenshot()
 	if err != nil {
 		slog.Error("Failed to take screenshot", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to take screenshot"})
 	}
 
 	err = ctx.File(screenshotPath)
 	if err != nil {
 		slog.Error("Failed to serve file", "file", screenshotPath, "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to serve file"})
 	}
 
 	return nil
@@ -328,19 +409,19 @@ func previewRoute(ctx echo.Context) error {
 	fullPath := ctx.Get("fullPath").(string)
 	exists := ctx.Get("fileExists").(bool)
 	if !exists {
-		return ctx.JSON(http.StatusNotFound, ErrorResponse{Error: "File not found"})
+		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
 	outputFilePath, err := pkg.GenerateFilePreview(fullPath)
 	if err != nil {
 		slog.Error("Failed to generate preview", "file", fullPath, "error", err)
 		if errors.Is(err, pkg.ErrFileTypePreviewNotSupported) {
-			return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "File type not supported for preview"})
+			return ctx.JSON(http.StatusUnsupportedMediaType, shared.ErrorResponse{Description: "File type not supported for preview"})
 		}
 		if errors.Is(err, pkg.ErrFilePreviewToolsMissing) {
-			return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Required tools for file preview are missing"})
+			return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Required tools for file preview are missing"})
 		}
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to generate preview"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to generate preview"})
 	}
 
 	return ctx.File(outputFilePath)
@@ -348,11 +429,22 @@ func previewRoute(ctx echo.Context) error {
 
 // Reset previous file views so they dont collide with the new one
 func resetView() error {
-	err := pkg.KeyboardInput(keybd_event.VK_ESC)
+	err := pkg.FileHandler.CloseRunningProgram()
 	if err != nil {
-		return fmt.Errorf("failed to send ESC key: %w", err)
+		return fmt.Errorf("failed to close running program: %w", err)
 	}
+
 	sseConnection <- ""
 
 	return nil
 }
+
+func isPortFree(port int) bool {
+	addr := fmt.Sprintf("127.0.0.1:%d", port)
+	l, err := net.Listen("tcp", addr)
+	if err != nil {
+		return false
+	}
+	_ = l.Close()
+	return true
+}

display/web/main.templ

@@ -1,81 +1,120 @@
 package web
 
 templ indexTemplate() {
-	<!DOCTYPE html>
+<!DOCTYPE html>
-	<html lang="en">
+<html lang="en">
-		<head>
-			<meta charset="UTF-8"/>
-			<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-			<title>PLG Connect Display</title>
-			<script src="https://cdn.jsdelivr.net/npm/htmx.org@2.0.6/dist/htmx.min.js" integrity="sha384-Akqfrbj/HpNVo8k11SXBb6TlBWmXXlYQrCSqEWmyKJe+hDm3Z/B2WVG4smwBkRVm" crossorigin="anonymous"></script>
-			<script src="https://cdn.jsdelivr.net/npm/htmx-ext-sse@2.2.2" crossorigin="anonymous"></script>
-			<style>
-				body {
-				    display: flex;
-	                justify-content: center; /* centers horizontally */
-	                align-items: center;     /* centers vertically */
-	     			width: 100vw;    /* Viewport width */
-	                height: 100vh;   /* Viewport height */
-	                margin: 0;
-	                padding: 0;
-	                overflow: hidden;
-					background-color: hsl(256, 10%, 10%);
-					color: hsl(256, 90%, 95%);
-				}
 
-				video, img, iframe {
+<head>
-	    			width: 100vw;    /* Viewport width */
+	<meta charset="UTF-8" />
-	                height: 100vh;   /* Viewport height */
+	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
-	    			object-fit: contain;
+	<title>PLG Connect Display</title>
-				}
+	<script src="/static/htmx.min.js"></script>
+	<script src="/static/htmx-ext-sse.min.js"></script>
+	<style>
+		:root {
+			--background-color: black;
+			--foreground-color: oklch(92.3% 0.003 48.717);
+			--font-size: 5rem;
+		}
 
-				p {
+		body {
-				    font-size: 6rem;
+			display: flex;
-					line-height: 1;
+			justify-content: center;
-					font-family: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
+			/* centers horizontally */
-					text-wrap: balance;
+			align-items: center;
-					max-width: 90vw;
+			/* centers vertically */
-					word-break: break-word;
+			width: 100vw;
-					display: block;
+			/* Viewport width */
+			height: 100vh;
+			/* Viewport height */
+			margin: 0;
+			padding: 0;
+			overflow: hidden;
+			background-color: var(--background-color);
+			color: var(--foreground-color);
+			font-family: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
+		}
+
+		video,
+		img,
+		iframe {
+			width: 100vw;
+			/* Viewport width */
+			height: 100vh;
+			/* Viewport height */
+			object-fit: contain;
+		}
+
+		p,
+		li {
+			font-size: var(--font-size);
+			line-height: 1.2;
+			text-wrap: balance;
+			max-width: 90vw;
+			word-break: break-word;
+			margin: 0 0 calc(var(--font-size) * 0.4) 0;
+		}
+
+		ul,
+		ol {
+			padding-left: calc(var(--font-size)*1.5);
+		}
+	</style>
+	<script>
+		document.addEventListener('keydown', function (event) {
+			if (event.code === 'Space') {
+				event.preventDefault();
+				var video = document.querySelector('video');
+				if (video) {
+					if (video.paused) {
+						video.play();
+					} else {
+						video.pause();
+					}
 				}
-			</style>
+			}
-			<script>
+		});
-				document.addEventListener('keydown', function(event) {
+	</script>
-				    if (event.code === 'Space') {
+</head>
-				        event.preventDefault();
+<bod>
-				        var video = document.querySelector('video');
+	<div hx-get="/splash" hx-trigger="load"></div>
-				        if (video) {
+	<main hx-ext="sse" sse-connect="/sse" sse-swap="message"></main>
-				            if (video.paused) {
+</bod>
-				                video.play();
+
-				            } else {
+</html>
-				                video.pause();
-				            }
-				        }
-				    }
-				});
-			</script>
-		</head>
-		<bod>
-			<div hx-get="/splash" hx-trigger="load"></div>
-			<main hx-ext="sse" sse-connect="/sse" sse-swap="message"></main>
-		</bod>
-	</html>
 }
 
 templ videoTemplate(path string) {
-	<video autoplay>
+<video autoplay>
-		<source src={ "/api/file/" + path } type="video/mp4"/>
+	<source src={ "/api/file/" + path } type="video/mp4" />
-	</video>
+</video>
 }
 
 templ imageTemplate(path string) {
-	<img src={ "/api/file/" + path }/>
+<img src={ "/api/file/" + path } />
 }
 
-templ deviceInfoTemplate(ip string, mac string) {
+templ deviceInfoTemplate(ip string, mac string, showQR bool) {
-	<p>
+<div style="width: 100vw; height: 100vh; display: flex; flex-direction: row; justify-content: space-between;">
+	<div
+		style="display: flex; flex-direction: column; gap: 1rem; justify-content: end; padding: 2rem; font-size: 4rem;">
 		{ ip }
-		<br/>
 		<span style="text-transform: uppercase;">{ mac }</span>
-	</p>
+	</div>
+	if showQR {
+	<div style="display: flex; justify-content: end; align-items: end; padding: 2rem;">
+		<div style="padding: 1rem; background-color: var(--foreground-color); border-radius: 1rem;">
+			<img style="height: 30vh; width: auto; image-rendering: pixelated; image-rendering: crisp-edges;"
+				src={ "/qr?data=http://" + ip + ":8080" } alt="QR-Code" />
+		</div>
+	</div>
+	}
+</div>
+<style>
+	:root {
+		--splash-bg: transparent !important;
+		--splash-fade-out-state: paused !important;
+		--background-color: oklch(21.6% 0.006 56.043);
+	}
+</style>
 }

display/web/static/htmx-ext-sse.min.js

@@ -0,0 +1 @@
+(function(){var g;htmx.defineExtension("sse",{init:function(e){g=e;if(htmx.createEventSource==undefined){htmx.createEventSource=t}},getSelectors:function(){return["[sse-connect]","[data-sse-connect]","[sse-swap]","[data-sse-swap]"]},onEvent:function(e,t){var r=t.target||t.detail.elt;switch(e){case"htmx:beforeCleanupElement":var n=g.getInternalData(r);var s=n.sseEventSource;if(s){g.triggerEvent(r,"htmx:sseClose",{source:s,type:"nodeReplaced"});n.sseEventSource.close()}return;case"htmx:afterProcessNode":i(r)}}});function t(e){return new EventSource(e,{withCredentials:true})}function a(n){if(g.getAttributeValue(n,"sse-swap")){var s=g.getClosestMatch(n,v);if(s==null){return null}var e=g.getInternalData(s);var a=e.sseEventSource;var t=g.getAttributeValue(n,"sse-swap");var r=t.split(",");for(var i=0;i<r.length;i++){const u=r[i].trim();const c=function(e){if(l(s)){return}if(!g.bodyContains(n)){a.removeEventListener(u,c);return}if(!g.triggerEvent(n,"htmx:sseBeforeMessage",e)){return}f(n,e.data);g.triggerEvent(n,"htmx:sseMessage",e)};g.getInternalData(n).sseEventListener=c;a.addEventListener(u,c)}}if(g.getAttributeValue(n,"hx-trigger")){var s=g.getClosestMatch(n,v);if(s==null){return null}var e=g.getInternalData(s);var a=e.sseEventSource;var o=g.getTriggerSpecs(n);o.forEach(function(t){if(t.trigger.slice(0,4)!=="sse:"){return}var r=function(e){if(l(s)){return}if(!g.bodyContains(n)){a.removeEventListener(t.trigger.slice(4),r)}htmx.trigger(n,t.trigger,e);htmx.trigger(n,"htmx:sseMessage",e)};g.getInternalData(n).sseEventListener=r;a.addEventListener(t.trigger.slice(4),r)})}}function i(e,t){if(e==null){return null}if(g.getAttributeValue(e,"sse-connect")){var r=g.getAttributeValue(e,"sse-connect");if(r==null){return}n(e,r,t)}a(e)}function n(r,e,n){var s=htmx.createEventSource(e);s.onerror=function(e){g.triggerErrorEvent(r,"htmx:sseError",{error:e,source:s});if(l(r)){return}if(s.readyState===EventSource.CLOSED){n=n||0;n=Math.max(Math.min(n*2,128),1);var t=n*500;window.setTimeout(function(){i(r,n)},t)}};s.onopen=function(e){g.triggerEvent(r,"htmx:sseOpen",{source:s});if(n&&n>0){const t=r.querySelectorAll("[sse-swap], [data-sse-swap], [hx-trigger], [data-hx-trigger]");for(let e=0;e<t.length;e++){a(t[e])}n=0}};g.getInternalData(r).sseEventSource=s;var t=g.getAttributeValue(r,"sse-close");if(t){s.addEventListener(t,function(){g.triggerEvent(r,"htmx:sseClose",{source:s,type:"message"});s.close()})}}function l(e){if(!g.bodyContains(e)){var t=g.getInternalData(e).sseEventSource;if(t!=undefined){g.triggerEvent(e,"htmx:sseClose",{source:t,type:"nodeMissing"});t.close();return true}}return false}function f(t,r){g.withExtensions(t,function(e){r=e.transformResponse(r,null,t)});var e=g.getSwapSpecification(t);var n=g.getTarget(t);g.swap(n,r,e,{contextElement:t})}function v(e){return g.getInternalData(e).sseEventSource!=null}})();

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1766997096,
+        "narHash": "sha256-uOUlyNs3URxA+r8U7jeMe+W2X9kRriP2DqvaeeGzkTQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "088e9a071796304ed9ac3d666164e1ccb9b53f66",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-25.11-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,30 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11-small";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+  }: let
+    pkgs = nixpkgs.legacyPackages."x86_64-linux";
+  in {
+    devShells."x86_64-linux".default = pkgs.mkShell {
+      packages = with pkgs; [
+        libreoffice
+        ungoogled-chromium
+        xreader
+        imagemagick
+        ffmpeg
+        ghostscript
+        gnome-screenshot
+
+        playwright-driver.browsers
+      ];
+
+      PLAYWRIGHT_BROWSERS_PATH = pkgs.playwright-driver.browsers;
+      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = "true";
+      PW_DISABLE_TS_ESM = "true";
+    };
+  };
+}

go.work.sum

@@ -1,7 +1,24 @@
 github.com/a-h/htmlformat v0.0.0-20250209131833-673be874c677/go.mod h1:FMIm5afKmEfarNbIXOaPHFY8X7fo+fRQB6I9MPG2nB0=
+github.com/a-h/templ v0.3.960 h1:trshEpGa8clF5cdI39iY4ZrZG8Z/QixyzEyUnA7feTM=
+github.com/a-h/templ v0.3.960/go.mod h1:oCZcnKRf5jjsGpf2yELzQfodLphd2mwecwG4Crk5HBo=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/rs/cors v1.11.0/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
+golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
+golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
+golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
+golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
+golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
+golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
+golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
+golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/telemetry v0.0.0-20240521205824-bda55230c457/go.mod h1:pRgIJT+bRLFKnoM1ldnzKoxTIn14Yxz928LQRYYgIN0=
+golang.org/x/telemetry v0.0.0-20250710130107-8d8967aff50b/go.mod h1:4ZwOYna0/zsOKwuR5X/m0QFOJpSZvAxFfkQT+Erd9D4=
 golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=
-golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/term v0.33.0/go.mod h1:s18+ql9tYWp1IfpV9DmCtQDDSRBUjKaw9M1eAv5UeF0=
+golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
+golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
+golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg=
+golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=

nixos/configuration.nix

@@ -0,0 +1,164 @@
+{
+  inputs,
+  config,
+  pkgs,
+  ...
+}: {
+  imports = [
+    inputs.home-manager.nixosModules.default
+    ./hardware-configuration.nix
+  ];
+
+  ## System Config
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.steam-hardware.enable = true;
+
+  networking.networkmanager.enable = true;
+
+  nix.settings.experimental-features = ["nix-command" "flakes"];
+
+  time.timeZone = "Europe/Berlin";
+
+  i18n.defaultLocale = "en_US.UTF-8";
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "de_DE.UTF-8";
+    LC_IDENTIFICATION = "de_DE.UTF-8";
+    LC_MEASUREMENT = "de_DE.UTF-8";
+    LC_MONETARY = "de_DE.UTF-8";
+    LC_NAME = "de_DE.UTF-8";
+    LC_NUMERIC = "de_DE.UTF-8";
+    LC_PAPER = "de_DE.UTF-8";
+    LC_TELEPHONE = "de_DE.UTF-8";
+    LC_TIME = "de_DE.UTF-8";
+  };
+
+  services.xserver.enable = true;
+
+  services.xserver.displayManager.lightdm.enable = true;
+  services.xserver.desktopManager.xfce.enable = true;
+
+  services.xserver.xkb = {
+    layout = "de";
+    variant = "";
+  };
+
+  console.keyMap = "de";
+
+  services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+  };
+
+  users.users.mudics = {
+    isNormalUser = true;
+    description = "mudics";
+    extraGroups = ["networkmanager" "wheel"];
+  };
+
+  nixpkgs.config.allowUnfree = true;
+
+  system.stateVersion = "25.05"; # Don't change
+
+  ## User Config
+
+  programs.nix-ld = {
+    enable = true;
+    libraries = with pkgs; [
+      stdenv.cc.cc
+      zlib
+    ];
+  };
+
+  services.displayManager.autoLogin = {
+    enable = true;
+    user = "mudics";
+  };
+
+  networking.hostName = "mudics";
+
+  environment.systemPackages = with pkgs; [
+    # Programs
+    libreoffice
+    #rustdesk
+    ungoogled-chromium
+    xfce.thunar-archive-plugin
+    git
+    nushell
+    unzip
+    iputils
+    xreader
+
+    # Libraries
+    imagemagick
+    ffmpeg
+    ghostscript
+  ];
+
+  home-manager.users.mudics = {
+    xfconf.settings = {
+      xfce4-power-manager."xfce4-power-manager/dpms-enabled" = false;
+      xfce4-screensaver."saver/enabled" = false;
+    };
+
+    home.stateVersion = "25.05";
+  };
+
+  systemd.services.update-mudics = {
+    wantedBy = ["multi-user.target"];
+    after = ["network-online.target"];
+    wants = ["network-online.target"];
+    path = config.environment.systemPackages;
+    script = "nu ${./update.sh}";
+    serviceConfig = {
+      WorkingDirectory = "/home/mudics/mudics";
+      User = "mudics";
+      Type = "oneshot";
+    };
+  };
+
+  systemd.services.run-mudics = {
+    wantedBy = ["default.target"];
+    after = ["update-mudics.service" "graphical.target"];
+    wants = ["graphical.target"];
+    path = config.environment.systemPackages;
+    script = "./plg-mudics-display";
+    serviceConfig = {
+      WorkingDirectory = "/home/mudics/mudics";
+      User = "mudics";
+      Type = "simple";
+    };
+    environment = {
+      DISPLAY = ":0";
+      XDG_RUNTIME_DIR = "/run/user/1000";
+    };
+  };
+
+  systemd.services.build-mudics-system = {
+    wantedBy = ["default.target"];
+    after = ["update-mudics.service"];
+    path = with pkgs; [nixos-rebuild];
+    script = "nixos-rebuild boot --flake .#mudics";
+    serviceConfig = {
+      WorkingDirectory = "/home/mudics/mudics/nixos";
+    };
+  };
+
+  systemd.tmpfiles.rules = [
+    "d /home/mudics/mudics 0755 mudics - -"
+  ];
+
+  networking.firewall = {
+    enable = true;
+    allowedTCPPorts = [
+      1323 # display
+      8080 # control
+    ];
+  };
+}

nixos/flake.lock

@@ -0,0 +1,49 @@
+{
+  "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1763992789,
+        "narHash": "sha256-WHkdBlw6oyxXIra/vQPYLtqY+3G8dUVZM8bEXk0t8x4=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "44831a7eaba4360fb81f2acc5ea6de5fde90aaa3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "release-25.05",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1761999846,
+        "narHash": "sha256-IYlYnp4O4dzEpL77BD/lj5NnJy2J8qbHkNSFiPBCbqo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "3de8f8d73e35724bf9abef41f1bdbedda1e14a31",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nixos/flake.nix

@@ -0,0 +1,27 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+
+    home-manager = {
+      url = "github:nix-community/home-manager/release-25.05";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  } @ inputs: {
+    nixosConfigurations.mudics = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      specialArgs = {
+        inherit inputs;
+      };
+      modules = [
+        ./configuration.nix
+        inputs.home-manager.nixosModules.default
+      ];
+    };
+  };
+}

nixos/update.sh

@@ -0,0 +1,62 @@
+#!/usr/bin/env nu
+
+print "Checking if we have an internet connection ..."
+
+if (ping google.com -c 5 -W 10 -s 1400 | complete | get exit_code) != 0 {
+    print "No internet connection. Exiting."
+    exit 1
+}
+
+print "Checking for new version of PLG-MuDiCS ..."
+if (new_version_available) {
+    print "New version available. Trying to update ..."
+
+    get_new_display_file
+    get_new_nixos_config
+}
+
+print "Done"
+
+def get_new_nixos_config [] {
+    let temp_folder_path = (mktemp -d "nixos-temp-XXXXXX")
+    let temp_file_path = (mktemp "nixos-temp-XXXXXX")
+    let nixos_config_path = "nixos"
+
+    http get https://github.com/PLG-Development/PLG-MuDiCS/releases/latest/download/nixos.zip | save -p -f $temp_file_path
+
+    unzip $temp_file_path -d $temp_folder_path
+    rm -rf $nixos_config_path
+    mv $temp_folder_path $nixos_config_path
+
+    rm $temp_file_path
+
+    cp /etc/nixos/hardware-configuration.nix $"($nixos_config_path)/hardware-configuration.nix"
+}
+
+def get_new_display_file [] {
+    let temp_file_path = (mktemp "display-temp-XXXXXX")
+
+    http get https://github.com/PLG-Development/PLG-MuDiCS/releases/latest/download/plg-mudics-display | save -p -f $temp_file_path
+
+    chmod +x $temp_file_path
+    mv $temp_file_path plg-mudics-display
+}
+
+def new_version_available [] {
+    let file_path = "version.json"
+    if not ($file_path | path exists) {
+        { "version": ""} | to json | save version.json
+    }
+
+    let current_version = open $file_path | get version
+
+    let new_version = http get https://api.github.com/repos/PLG-Development/PLG-MuDiCS/releases/latest --max-time 5sec | get tag_name
+    # TODO: only write when all operations were successful
+    { "version": $new_version} | to json | save version.json -f
+
+    if $current_version == $new_version {
+        false
+    } else {
+        true
+    }
+}

shared/embed.go

@@ -0,0 +1,8 @@
+package shared
+
+import (
+	_ "embed"
+)
+
+//go:embed splash_screen.html
+var SplashScreenTemplate string

shared/keys.json

@@ -0,0 +1,114 @@
+{
+  "Escape": "VK_ESC",
+  "Digit1": "VK_1",
+  "Digit2": "VK_2",
+  "Digit3": "VK_3",
+  "Digit4": "VK_4",
+  "Digit5": "VK_5",
+  "Digit6": "VK_6",
+  "Digit7": "VK_7",
+  "Digit8": "VK_8",
+  "Digit9": "VK_9",
+  "Digit0": "VK_0",
+  "KeyQ": "VK_Q",
+  "KeyW": "VK_W",
+  "KeyE": "VK_E",
+  "KeyR": "VK_R",
+  "KeyT": "VK_T",
+  "KeyY": "VK_Y",
+  "KeyU": "VK_U",
+  "KeyI": "VK_I",
+  "KeyO": "VK_O",
+  "KeyP": "VK_P",
+  "KeyA": "VK_A",
+  "KeyS": "VK_S",
+  "KeyD": "VK_D",
+  "KeyF": "VK_F",
+  "KeyG": "VK_G",
+  "KeyH": "VK_H",
+  "KeyJ": "VK_J",
+  "KeyK": "VK_K",
+  "KeyL": "VK_L",
+  "KeyZ": "VK_Z",
+  "KeyX": "VK_X",
+  "KeyC": "VK_C",
+  "KeyV": "VK_V",
+  "KeyB": "VK_B",
+  "KeyN": "VK_N",
+  "KeyM": "VK_M",
+  "F1": "VK_F1",
+  "F2": "VK_F2",
+  "F3": "VK_F3",
+  "F4": "VK_F4",
+  "F5": "VK_F5",
+  "F6": "VK_F6",
+  "F7": "VK_F7",
+  "F8": "VK_F8",
+  "F9": "VK_F9",
+  "F10": "VK_F10",
+  "F11": "VK_F11",
+  "F12": "VK_F12",
+  "F13": "VK_F13",
+  "F14": "VK_F14",
+  "F15": "VK_F15",
+  "F16": "VK_F16",
+  "F17": "VK_F17",
+  "F18": "VK_F18",
+  "F19": "VK_F19",
+  "F20": "VK_F20",
+  "F21": "VK_F21",
+  "F22": "VK_F22",
+  "F23": "VK_F23",
+  "F24": "VK_F24",
+  "NumLock": "VK_NUMLOCK",
+  "ScrollLock": "VK_SCROLLLOCK",
+  "CapsLock": "VK_CAPSLOCK",
+  "Minus": "VK_SP2",
+  "Equal": "VK_SP3",
+  "Backspace": "VK_BACKSPACE",
+  "Tab": "VK_TAB",
+  "BracketLeft": "VK_SP4",
+  "BracketRight": "VK_SP5",
+  "Enter": "VK_ENTER",
+  "Semicolon": "VK_SP6",
+  "Quote": "VK_SP7",
+  "Backquote": "VK_SP1",
+  "Backslash": "VK_SP8",
+  "Comma": "VK_SP9",
+  "Period": "VK_SP10",
+  "Slash": "VK_SP11",
+  "IntlBackslash": "VK_SP12",
+  "NumpadMultiply": "VK_KPASTERISK",
+  "NumpadDivide": "VK_KPSLASH",
+  "NumpadAdd": "VK_KPPLUS",
+  "NumpadSubtract": "VK_KPMINUS",
+  "NumpadDecimal": "VK_KPDOT",
+  "NumpadEnter": "VK_KPENTER",
+  "Space": "VK_SPACE",
+  "Numpad0": "VK_KP0",
+  "Numpad1": "VK_KP1",
+  "Numpad2": "VK_KP2",
+  "Numpad3": "VK_KP3",
+  "Numpad4": "VK_KP4",
+  "Numpad5": "VK_KP5",
+  "Numpad6": "VK_KP6",
+  "Numpad7": "VK_KP7",
+  "Numpad8": "VK_KP8",
+  "Numpad9": "VK_KP9",
+  "PageUp": "VK_PAGEUP",
+  "PageDown": "VK_PAGEDOWN",
+  "End": "VK_END",
+  "Home": "VK_HOME",
+  "ArrowLeft": "VK_LEFT",
+  "ArrowUp": "VK_UP",
+  "ArrowRight": "VK_RIGHT",
+  "ArrowDown": "VK_DOWN",
+  "PrintScreen": "VK_PRINT",
+  "Insert": "VK_INSERT",
+  "Delete": "VK_DELETE",
+  "Help": "VK_HELP",
+  "BrowserBack": "VK_BACK",
+  "Pause": "VK_PAUSE",
+  "Lang1": "VK_HANGUEL",
+  "Lang2": "VK_HANJA"
+}

shared/main.go

@@ -1,8 +1,72 @@
 package shared
 
 import (
-	_ "embed"
+	"bytes"
+	"context"
+	"errors"
+	"os/exec"
+	"time"
 )
 
-//go:embed splash_screen.html
+type CommandResponse struct {
-var SplashScreenTemplate string
+	Stdout   string `json:"stdout"`
+	Stderr   string `json:"stderr"`
+	ExitCode int    `json:"exitCode"`
+}
+
+type ErrorResponse struct {
+	Description string `json:"description"`
+}
+
+var BadRequestDescription string = "Request uses invalid JSON syntax or does not follow request schema."
+
+func RunShellCommand(cmd *exec.Cmd) CommandResponse {
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+	err := cmd.Run()
+
+	return parseCmdResult(cmd, stdout, stderr, err)
+
+}
+
+func RunShellCommandNonBlocking(cmd *exec.Cmd) CommandResponse {
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+	cmd.Start()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	defer cancel()
+
+	done := make(chan error, 1)
+
+	go func() {
+		done <- cmd.Wait()
+	}()
+
+	select {
+	case <-ctx.Done():
+		return CommandResponse{}
+	case err := <-done:
+		return parseCmdResult(cmd, stdout, stderr, err)
+	}
+}
+
+func parseCmdResult(cmd *exec.Cmd, stdout, stderr bytes.Buffer, err error) CommandResponse {
+	commandOutput := CommandResponse{
+		Stdout:   stdout.String(),
+		Stderr:   stderr.String(),
+		ExitCode: cmd.ProcessState.ExitCode(),
+	}
+	if err != nil {
+		var exitErr *exec.ExitError
+		if errors.As(err, &exitErr) {
+			commandOutput.ExitCode = exitErr.ExitCode()
+		} else {
+			commandOutput.Stderr = err.Error()
+		}
+	}
+
+	return commandOutput
+}

shared/open_browser.go

@@ -0,0 +1,37 @@
+package shared
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"os/exec"
+)
+
+func OpenBrowserWindow(url string, fullscreen bool, temp bool) error {
+	bins := []string{"chromium", "chromium-browser"}
+
+	args := []string{fmt.Sprintf("--app=%s", url), "--autoplay-policy=no-user-gesture-required"}
+	if fullscreen {
+		args = append(args, "--start-fullscreen")
+	}
+	if temp {
+		tempDirPath, err := os.MkdirTemp("", "plg-mudics-browser-")
+		if err != nil {
+			return err
+		}
+		arg := fmt.Sprintf("--user-data-dir=%s", tempDirPath)
+		args = append(args, arg)
+	}
+
+	errs := []string{}
+	for _, bin := range bins {
+		cmd := exec.Command(bin, args...)
+		commandOutput := RunShellCommand(cmd)
+		if commandOutput.ExitCode == 0 {
+			return nil
+		}
+		errs = append(errs, commandOutput.Stderr)
+	}
+
+	return errors.New("failed to open browser window: " + fmt.Sprint(errs))
+}

shared/splash_screen.html

@@ -40,15 +40,7 @@
 		<text class="splash-text" x="850" y="66.25" font-size="90">S</text>
 
 		<!-- Controller -->
-		<rect
+		<rect x="325" y="350" width="300" height="168.75" rx="8" ry="8" class="splash-control-monitor" />
-			x="325"
-			y="350"
-			width="300"
-			height="168.75"
-			rx="8"
-			ry="8"
-			class="splash-control-monitor"
-		/>
 		<rect x="335" y="390" width="135" height="120" rx="8" ry="8" class="splash-other-button" />
 		<rect x="480" y="390" width="135" height="55" rx="8" ry="8" class="splash-other-button" />
 		<rect x="480" y="455" width="135" height="55" rx="8" ry="8" class="splash-start-button" />
@@ -59,30 +51,15 @@
 		<path class="window-controls" fill="none" d="M 575 360 H 590 V 375 H 575 V 360" />
 		<path class="window-controls" d="M 550 375 H 565" />
 
-		<svg
+		<svg class="cursor" width="50" height="50" viewBox="0 0 24 24" x="510" y="480" aria-hidden="true">
-			class="cursor"
+			<g stroke="#ffffff" fill="#000000" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
-			width="50"
-			height="50"
-			viewBox="0 0 24 24"
-			x="510"
-			y="480"
-			aria-hidden="true"
-		>
-			<g
-				stroke="#ffffff"
-				fill="#000000"
-				stroke-width="2"
-				stroke-linecap="round"
-				stroke-linejoin="round"
-			>
 				<path stroke="#000000" d="M 6.5 10 H 18 V 19 H 6" />
 				<path d="M22 14a8 8 0 0 1-8 8" />
 				<path d="M18 11v-1a2 2 0 0 0-2-2a2 2 0 0 0-2 2" />
 				<path d="M14 10V9a2 2 0 0 0-2-2a2 2 0 0 0-2 2v1" />
 				<path d="M10 9.5V4a2 2 0 0 0-2-2a2 2 0 0 0-2 2v10" />
 				<path
-					d="M18 11a2 2 0 1 1 4 0v3a8 8 0 0 1-8 8h-2c-2.8 0-4.5-.86-5.99-2.34l-3.6-3.6a2 2 0 0 1 2.83-2.82L7 15"
+					d="M18 11a2 2 0 1 1 4 0v3a8 8 0 0 1-8 8h-2c-2.8 0-4.5-.86-5.99-2.34l-3.6-3.6a2 2 0 0 1 2.83-2.82L7 15" />
-				/>
 			</g>
 		</svg>
 	</svg>
@@ -90,6 +67,9 @@
 
 <style>
 	:root {
+		--splash-fade-out-delay: 0s;
+		--splash-fade-out-state: running;
+
 		--base-stroke: #444444;
 		--base-stroke-active: #109e00;
 
@@ -118,13 +98,20 @@
 		align-items: center;
 		justify-content: center;
 		z-index: 9999;
-		animation: splash-fade 1s ease 4s forwards;
+		/* animation: splash-fade 1s ease 4s forwards; */
 		height: 100vh;
 		width: 100vw;
+
+		animation-name: splash-fade;
+		animation-duration: 1s;
+		animation-timing-function: ease;
+		animation-fill-mode: forwards;
+		animation-delay: var(--splash-fade-out-delay);
+		animation-play-state: var(--splash-fade-out-state);
 	}
 
 	#splash-svg {
-		max-height: 40vh;
+		max-height: 50vh;
 		max-width: 80vw;
 		opacity: 0;
 		animation: fade-in 1s ease 500ms forwards;
@@ -183,6 +170,7 @@
 		dominant-baseline: middle;
 		fill: var(--monitor-dark);
 		user-select: none;
+		font-family: sans-serif;
 	}
 
 	.splash-monitor {