fix(display): custom program file handling

* docs(display): api

* docs(display/keyboardInput): more generic interface

* docs(display): clarify error section

.github/workflows/build.yml

@@ -5,6 +5,7 @@ on:
     paths-ignore:
       - "**/*.md"
       - "**/*.yml"
+      - "**/*.sh"
   workflow_dispatch:
 
 jobs:

.github/workflows/release.yml

@@ -17,11 +17,15 @@ jobs:
       - 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

.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

README.md

@@ -1 +1,20 @@
 # 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/package.json

@@ -20,14 +20,15 @@
 		"@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-dnd-action": "^0.9.65",
@@ -38,6 +39,14 @@
 	},
 	"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/src/app.css

@@ -1,15 +1,70 @@
 @import 'tailwindcss';
-@plugin '@tailwindcss/typography';
-
 
 /* Adding more color steps */
 @theme {
-    --color-stone-150: oklch(0.9465 0.002 77.571);
-    --color-stone-250: oklch(0.896 0.004 52.542);
-    --color-stone-350: oklch(0.789 0.0075 56.313);
-    --color-stone-450: oklch(0.631 0.0115 57.165);
-    --color-stone-550: oklch(0.4985 0.012 65.855);
-    --color-stone-650: oklch(0.409 0.0105 70.599);
-    --color-stone-750: oklch(0.321 0.0085 50.928);
-    --color-stone-850: oklch(0.242 0.0065 45.171);
+	--color-stone-150: oklch(0.9465 0.002 77.571);
+	--color-stone-250: oklch(0.896 0.004 52.542);
+	--color-stone-350: oklch(0.789 0.0075 56.313);
+	--color-stone-450: oklch(0.631 0.0115 57.165);
+	--color-stone-550: oklch(0.4985 0.012 65.855);
+	--color-stone-650: oklch(0.409 0.0105 70.599);
+	--color-stone-750: oklch(0.321 0.0085 50.928);
+	--color-stone-850: oklch(0.242 0.0065 45.171);
+}
+
+/* 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/Button.svelte

@@ -26,13 +26,13 @@
 		click_function?: (e: MouseEvent) => void;
 		menu_options?: MenuOption[] | null;
 		menu_class?: string;
-		div_class?: string,
+		div_class?: string;
 		children?: any;
 	}>();
 
 	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) {
@@ -47,7 +47,7 @@
 	}
 
 	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 +154,7 @@
 			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();
 			}}

control/frontend/src/components/ControlView.svelte

@@ -12,50 +12,137 @@
 		TrafficCone
 	} from 'lucide-svelte';
 	import Button from './Button.svelte';
+	import PopUp from './PopUp.svelte';
+	import type { PopupContent } from '../ts/types';
+	import KeyInput from './KeyInput.svelte';
+	import { send_keyboard_input, show_blackscreen, show_html } from '../ts/api_handler';
+	import { run_on_all_selected_displays } from '../ts/stores/displays';
+	import { selected_display_ids } from '../ts/stores/select';
+	import { onMount } from 'svelte';
+	import TipTapInput from './TipTapInput.svelte';
+
+	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'
+		};
+	};
 </script>
 
+{#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="flex flex-col gap-2 p-2 overflow-auto">
+	<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-70 justify-normal">
-					<Button title="Vorherige Folie (Pfeil nach Links)" className="px-7"
-						><ArrowBigLeft /></Button
+				<div class="flex flex-row gap-2 w-75 justify-normal">
+					<Button
+						title="Vorherige Folie (Pfeil nach Links)"
+						className="px-9"
+						disabled={$selected_display_ids.length === 0}
+						click_function={() => {
+							run_on_all_selected_displays(send_keyboard_input, true, 'VK_LEFT');
+						}}><ArrowBigLeft /></Button
 					>
-					<Button title="Nächste Folie (Pfeil nach Rechts)" className="px-7"
-						><ArrowBigRight /></Button
+					<Button
+						title="Nächste Folie (Pfeil nach Rechts)"
+						className="px-9"
+						disabled={$selected_display_ids.length === 0}
+						click_function={() => {
+							run_on_all_selected_displays(send_keyboard_input, true, 'VK_RIGHT');
+						}}><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-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={() => {
+						run_on_all_selected_displays(show_blackscreen, true);
+					}}><Presentation />Blackout</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"
+					<Button
+						className="rounded-r-none pl-3 flex gap-3 grow w-65 justify-normal"
+						disabled={$selected_display_ids.length === 0}
 						><TrafficCone /> Fallback-Bild anzeigen</Button
 					>
 					<Button className="rounded-l-none flex grow-0 w-10"><ChevronDown /></Button>
 				</div>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"
-					><Keyboard /> Tastatur-Inputs durchgeben</Button
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$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">
-					<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-75 justify-normal"
+						disabled={$selected_display_ids.length === 0}><Power /> PC hochfahren</Button
 					>
-					<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-						><PowerOff /> PC herunterfahren</Button
+					<Button
+						className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
+						disabled={$selected_display_ids.length === 0}><PowerOff /> PC herunterfahren</Button
 					>
 				</div>
-				<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
+				<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/components/DisplayGroupObject.svelte

@@ -1,6 +1,11 @@
 <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 {
+		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';
@@ -16,9 +21,10 @@
 	import type { DisplayGroup, MenuOption } from '../ts/types';
 	import { selected_display_ids } from '../ts/stores/select';
 
-	let { display_group, get_display_menu_options } = $props<{
+	let { display_group, get_display_menu_options, close_pinned_display } = $props<{
 		display_group: DisplayGroup;
-		get_display_menu_options: (display_id: string) => MenuOption[]
+		get_display_menu_options: (display_id: string) => MenuOption[];
+		close_pinned_display: () => void;
 	}>();
 
 	let hovering_selectable = $state(false);
@@ -32,7 +38,7 @@
 		const { items, info } = e.detail;
 
 		if (items.length !== 1 && info.trigger === TRIGGERS.DRAG_STARTED) {
-      $is_display_drag = true;
+			$is_display_drag = true;
 			add_empty_display_group();
 		}
 		set_new_display_group_data(display_group.id, items);
@@ -40,7 +46,7 @@
 
 	function handle_finalize(e: CustomEvent) {
 		remove_empty_display_groups();
-    $is_display_drag = false;
+		$is_display_drag = false;
 		set_new_display_group_data(display_group.id, e.detail.items);
 	}
 </script>
@@ -65,7 +71,7 @@
 			items: display_group.data,
 			type: 'item',
 			flipDurationMs: dnd_flip_duration_ms,
-			dropTargetStyle: { outline: 'none' },
+			dropTargetStyle: { outline: 'none' }
 		}}
 		onconsider={handle_consider}
 		onfinalize={handle_finalize}
@@ -77,7 +83,7 @@
 				class="outline-none"
 				role="figure"
 			>
-				<DisplayObject {display} {get_display_menu_options} />
+				<DisplayObject {display} {get_display_menu_options} {close_pinned_display} />
 			</section>
 		{/each}
 

control/frontend/src/components/DisplayObject.svelte

@@ -10,25 +10,30 @@
 	import OnlineState from './OnlineState.svelte';
 	import type { Display, MenuOption } from '../ts/types';
 	import { is_selected, select, selected_display_ids } from '../ts/stores/select';
+	import { update_screenshot } from '../ts/stores/displays';
+	import { filter_file_selection_for_current_selected_displays } from '../ts/stores/files';
 
-	let { display, get_display_menu_options } = $props<{
+	let { display, get_display_menu_options, close_pinned_display } = $props<{
 		display: Display;
 		get_display_menu_options: (display_id: string) => MenuOption[];
+		close_pinned_display: () => void;
 	}>();
 
 	let hovering_unselectable = $state(false);
 
 	function onclick(e: Event) {
 		select(selected_display_ids, display.id);
+		filter_file_selection_for_current_selected_displays();
 		e.stopPropagation();
 	}
 
 	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;
 		}
+		update_screenshot(display.id);
 		e.stopPropagation();
 	}
 </script>

control/frontend/src/components/DisplayView.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { fade, scale, slide } from 'svelte/transition';
+	import { fade, scale } from 'svelte/transition';
 	import {
 		all_displays_of_group_selected,
 		displays,
@@ -25,6 +25,8 @@
 	import { dragHandleZone } from 'svelte-dnd-action';
 	import { flip } from 'svelte/animate';
 	import DisplayGroupObject from './DisplayGroupObject.svelte';
+	import { Pane, Splitpanes } from 'svelte-splitpanes';
+	import HighlightedText from './HighlightedText.svelte';
 
 	let { handle_display_deletion, handle_display_editing } = $props<{
 		handle_display_deletion: (display_id: string) => void;
@@ -36,21 +38,32 @@
 		get_display_by_id($pinned_display_id || '', $displays)
 	);
 
+	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)},
-		}
-	];
+			{
+				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);
+				}
+			}
+		];
 	}
 
 	function select_all(current_displays: DisplayGroup[], current_selected_display_ids: string[]) {
@@ -69,6 +82,13 @@
 		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;
@@ -85,156 +105,176 @@
 <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 }}>
+	<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="grid grid-rows-[2.5rem_auto] will-change-[height,opacity] overflow-hidden rounded-2xl"
-				transition:slide={{ duration: 260, easing: cubicOut }}
+				class="min-h-0 h-full grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl overflow-hidden"
 			>
-				<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}
+				<!-- 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">
-						<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={get_display_menu_options($pinned_display_id)}
+						<button
+							class="min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors {get_selectable_color_classes(
+								all_selected($displays, $selected_display_ids),
+								{
+									bg: true,
+									hover: true,
+									active: true,
+									text: true
+								}
+							)}"
+							onclick={() => select_all($displays, $selected_display_ids)}
 						>
-							<Menu />
-						</Button>
-
-						<Button
-							title="Bildschirm nicht mehr anpinnen"
-							className="aspect-square !p-1"
-							bg="bg-stone-600"
-							click_function={() => {
-								$pinned_display_id = null;
-							}}
-						>
-							<PinOff />
-						</Button>
-					</div>
-				</div>
-
-				<div class="w-full h-[30dvh] bg-stone-800 flex justify-center items-center">
-					{#if pinned_display?.preview_url}
-						<img
-							src={pinned_display.preview_url}
-							alt="preview"
-							class="max-h-full max-w-full object-cover bg-black"
-						/>
-					{:else}
-						<div class="size-full bg-black flex justify-center items-center">
-							<VideoOff class="size-[20%]" />
+							<span
+								>{all_selected($displays, $selected_display_ids)
+									? 'Alle abwählen'
+									: 'Alle auswählen'}</span
+							>
+						</button>
+						<div class="flex flex-row">
+							<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', $current_height, -1))}
+								click_function={() => {
+									change_height('display', -1);
+								}}
+							>
+								<Minus />
+							</Button>
 						</div>
-					{/if}
-				</div>
-			</div>
-		</div>
-	{/if}
-
-	<div class="min-h-0 h-full grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl overflow-hidden">
-		<!-- Normal Heading Left -->
-		<div class="bg-stone-700 flex justify-between w-full p-1 gap-2 min-w-0">
-			<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-				Verbundene Bildschirme
-			</span>
-			<div class="flex flex-row gap-1">
-				<button
-					class="gap-2 min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors {get_selectable_color_classes(
-						all_selected($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-row">
-					<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;
-				}}
-			>
-				{#if $displays.length === 1 && $displays[0].data.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 <Settings
-							class="inline pb-1"
-						/> und "Neuen Bildschirm hinzufügen".
 					</div>
-				{:else}
-					{#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} {get_display_menu_options} />
-						</section>
-					{/each}
-				{/if}
+				</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;
+						}}
+					>
+						{#if $displays.length === 1 && $displays[0].data.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 $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}
+										{get_display_menu_options}
+										{close_pinned_display}
+									/>
+								</section>
+							{/each}
+						{/if}
+					</div>
+				</div>
 			</div>
-		</div>
-	</div>
+		</Pane>
+	</Splitpanes>
 </div>

control/frontend/src/components/FileView.svelte

@@ -1,16 +1,248 @@
 <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";
+	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,
+		get_display_ids_where_file_is_missing,
+		get_display_ids_where_path_does_not_exist,
+		get_file_by_id,
+		get_longest_existing_path_and_needed_parts,
+		run_for_selected_files_on_selected_displays,
+		update_current_folder_on_selected_displays
+	} from '../ts/stores/files';
+	import { slide } from 'svelte/transition';
+	import FolderElementObject from './FolderElementObject.svelte';
+	import PopUp from './PopUp.svelte';
+	import type { PopupContent } from '../ts/types';
+	import TextInput from './TextInput.svelte';
+	import { is_valid_name } from '../ts/utils';
+	import { displays, get_display_by_id, run_on_all_selected_displays } from '../ts/stores/displays';
+	import { create_folders, delete_files, rename_file } from '../ts/api_handler';
+	import { get } from 'svelte/store';
+	import HighlightedText from './HighlightedText.svelte';
 
+	let current_name: string = $state('');
+	let current_valid: boolean = $state(false);
+
+	let popup_content: PopupContent = $state({
+		open: false,
+		snippet: null,
+		title: '',
+		closable: true
+	});
+
+	function popup_close_function() {
+		popup_content.open = false;
+	}
+
+	async function create_new_folder() {
+		for (const display_id of $selected_display_ids) {
+			const display = get_display_by_id(display_id, $displays);
+			if (!display) continue;
+			const path_data = get_longest_existing_path_and_needed_parts(
+				$current_file_path,
+				display_id,
+				$all_files
+			);
+			await create_folders(display.ip, path_data.existing, [
+				...path_data.needed,
+				current_name.trim()
+			]);
+		}
+		await update_current_folder_on_selected_displays();
+		popup_close_function();
+	}
+
+	async function edit_file_name(new_file_name: string) {
+		await run_for_selected_files_on_selected_displays(async (ip: string, file_names: string[]) => {
+			if (file_names.length !== 1) {
+				console.log('EEEERRRRROOOOOOR', file_names);
+				return; // Error
+			}
+			await rename_file(ip, $current_file_path, file_names[0], new_file_name);
+		});
+		await update_current_folder_on_selected_displays();
+		popup_close_function();
+	}
+
+	const show_edit_file_popup = () => {
+		const file = get_file_by_id($selected_file_ids[0], $all_files, $current_file_path);
+		if (!file) return;
+		const is_folder = file.type === 'inode/directory';
+		const extension = is_folder ? '' : '.' + file.name.split('.').at(-1) || '';
+		current_name = file.name.slice(0, file.name.length - extension.length);
+		current_valid = true;
+		popup_content = {
+			open: true,
+			snippet: edit_file_name_popup,
+			title: `${is_folder ? 'Ordner' : 'Datei'} umbenennen`,
+			title_icon: FolderPlus,
+			snippet_arg: extension,
+			closable: true
+		};
+	};
+
+	const show_new_folder_popup = () => {
+		current_name = '';
+		current_valid = false;
+		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 get_display_ids_where_path_does_not_exist($current_file_path, $selected_display_ids, $all_files).length > 0}
+		<span class="leading-relaxed"
+			>Der aktuelle Pfad <HighlightedText
+				>{$current_file_path.slice(0, $current_file_path.length - 1)}</HighlightedText
+			> existiert nicht auf {get_display_ids_where_path_does_not_exist(
+				$current_file_path,
+				$selected_display_ids,
+				$all_files
+			).length === 1
+				? 'dem Bildschirm'
+				: 'den Bildschirmen'}
+			{#each get_display_ids_where_path_does_not_exist($current_file_path, $selected_display_ids, $all_files) as display_id, i}
+				{#if i !== 0}
+					,
+				{/if}
+				<HighlightedText>{get_display_by_id(display_id, $displays)?.name}</HighlightedText>
+			{/each}. Mit der Erstellung dieses Ordners wird der Pfad automatisch mit leeren Ordnern bis
+			zum aktuellen Pfad aufgefüllt.
+		</span>
+	{/if}
+	<TextInput
+		focused_on_start={true}
+		bind:current_value={current_name}
+		bind:current_valid
+		title="Ordnername"
+		is_valid_function={(input: string) => {
+			if (input.startsWith('.')) return [false, 'Name darf nicht mit . beginnen'];
+			const trimmed_input = input.trim();
+			if (trimmed_input.length === 0 || trimmed_input.length > 50)
+				return [false, 'Ungültige Länge'];
+			if (!is_valid_name(trimmed_input)) return [false, 'Name enthält ungültige Zeichen'];
+			if (
+				get_current_folder_elements($all_files, $current_file_path, $selected_display_ids).some(
+					(e) => e.name === trimmed_input
+				)
+			)
+				return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
+		}}
+		enter_mode="submit"
+		enter_function={create_new_folder}
+	/>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="px-4 font-bold" click_function={create_new_folder} disabled={!current_valid}
+			>Neuen Ordner erstellen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet edit_file_name_popup(extension: string)}
+	<TextInput
+		focused_on_start={true}
+		bind:current_value={current_name}
+		bind:current_valid
+		title="Neuer {extension === '' ? 'Ordner' : 'Datei'}name"
+		is_valid_function={(input: string) => {
+			if (input.startsWith('.')) return [false, 'Name darf nicht mit . beginnen'];
+			const trimmed_input = input.trim() + extension;
+			if (trimmed_input.length === 0 || trimmed_input.length > 50)
+				return [false, 'Ungültige Länge'];
+			if (!is_valid_name(trimmed_input)) return [false, 'Name enthält ungültige Zeichen'];
+			if (
+				get_current_folder_elements($all_files, $current_file_path, $selected_display_ids).some(
+					(e) =>
+						e.name === trimmed_input &&
+						e.id !== get_file_by_id($selected_file_ids[0], $all_files, $current_file_path)?.id
+				)
+			)
+				return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
+		}}
+		enter_mode="submit"
+		enter_function={() => edit_file_name(current_name.trim() + extension)}
+		{extension}
+	/>
+	<div class="flex flex-row justify-end gap-2">
+		<Button
+			className="px-4 font-bold"
+			click_function={() => edit_file_name(current_name.trim() + extension)}
+			disabled={!current_valid}>{extension === '' ? 'Ordner' : 'Datei'} umbenennen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet delete_request_popup()}
+	<div class="flex flex-col gap-1 h-full min-h-0 grow-0">
+		<span class="text-stone-400 px-1"
+			>{`${$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_file_ids
+				.map((file_id) => get_file_by_id(file_id, $all_files, $current_file_path))
+				.filter((element) => element !== null) as file}
+				<FolderElementObject {file} not_interactable />
+			{/each}
+		</div>
+	</div>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="px-4 font-bold" click_function={popup_close_function}>Abbrechen</Button>
+		<Button
+			hover_bg="bg-red-400"
+			active_bg="bg-red-500"
+			className="px-4 flex text-red-400 hover:text-stone-100"
+			click_function={async () => {
+				await run_for_selected_files_on_selected_displays(
+					async (ip: string, file_names: string[]) => {
+						await delete_files(ip, $current_file_path, file_names);
+					}
+				);
+				await update_current_folder_on_selected_displays();
+				popup_close_function();
+			}}>Löschen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet clipboard_hover_snippet()}
+	<div></div>
+{/snippet}
+
 <div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
 	<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
 		<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
@@ -44,14 +276,20 @@
 	<div class="flex flex-col gap-2 p-2 overflow-hidden relative rounded-b-2xl">
 		<div class="flex flex-col gap-2 p-2 bg-stone-750 rounded-xl">
 			<PathBar />
-			<div class="flex flex-row justify-between gap-6 overflow-x-auto">
+			<div class="flex flex-row justify-between gap-6">
 				<div class="flex flex-row gap-2 shrink-0">
 					<Button
 						title="Neuen Ordner erstellen (Neuen Ordner mit ausgewählten Objekten erstellen)"
-						className="px-3 flex"><FolderPlus /></Button
+						className="px-3 flex"
+						click_function={show_new_folder_popup}
+						disabled={$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"><Upload /></Button>
+					<Button
+						title="Datei(en) hochladen"
+						className="px-3 flex"
+						disabled={$selected_display_ids.length === 0}><Upload /></Button
+					>
 					<Button
 						title="Ausgewählte Datei(en) herunterladen"
 						className="px-3 flex"
@@ -61,6 +299,7 @@
 					<Button
 						title="Aktuellen Ordner / Ausgewählte Datei(en) zwischen Bildschirmen synchronisieren"
 						className="px-3 flex gap-3"
+						disabled={$selected_display_ids.length === 0}
 						><RefreshCcw />
 						<span class="hidden 2xl:flex">Synchronisieren</span>
 					</Button>
@@ -71,13 +310,18 @@
 						className="px-3 flex"
 						disabled={$selected_file_ids.length === 0}><Scissors /></Button
 					>
-					<Button title="Ausgewählte Datei(en) einfügen" className="px-3 flex"
-						><ClipboardPaste /></Button
+					<Button
+						title="Ausgewählte Datei(en) einfügen"
+						className="!p-0 flex relative"
+						disabled={$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={$selected_file_ids.length !== 1}><Pen /></Button
 					>
 					<Button
@@ -85,22 +329,43 @@
 						hover_bg="bg-red-400"
 						active_bg="bg-red-500"
 						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Trash2 /></Button
+						disabled={$selected_file_ids.length === 0}
+						click_function={delete_folder_element_popup}><Trash2 /></Button
 					>
 				</div>
 			</div>
 		</div>
 		<div class="min-h-0 h-full overflow-y-auto bg-stone-750 rounded-xl">
-			<div class="flex flex-col gap-2 p-2 min-h-0">
-				{#each get_current_folder_elements($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 class="flex flex-col gap-2 p-2 min-h-0 max-w-full">
+				{#if $selected_display_ids.length === 0}
+					<span class="text-stone-450 px-10 py-6 leading-relaxed text-center">
+						Es sind keine Bildschirme ausgewählt.
+					</span>
+				{:else}
+					{#each get_current_folder_elements($all_files, $current_file_path, $selected_display_ids) as folder_element (folder_element.id)}
+						<section in:slide={{ duration: 100 }} class="outline-none">
+							<FolderElementObject file={folder_element} />
+						</section>
+					{/each}
+					{#if get_current_folder_elements($all_files, $current_file_path, $selected_display_ids).length === 0}
+						<span class="text-stone-450 px-10 py-6 leading-relaxed text-center max-w-full">
+							Es existieren keine Dateien auf {$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 title="Test" title_icon={Info}>
-			<div>Hier kann beliebiges HTML übergeben werden!</div>
-		</PopUp> -->
+		<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/components/FolderElementObject.svelte

@@ -14,7 +14,12 @@
 		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 {
+		supported_file_type_icon,
+		type FolderElement,
+		type SupportedFileType
+	} from '../ts/types';
+
 	import {
 		is_selected,
 		select,
@@ -28,31 +33,41 @@
 		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 { get_file_size_display_string, get_file_type } from '../ts/utils';
 	import { open_file } from '../ts/api_handler';
-	import { displays, get_display_by_id, update_screenshot } from '../ts/stores/displays';
+	import {
+		displays,
+		get_display_by_id,
+		run_on_all_selected_displays,
+		update_screenshot
+	} from '../ts/stores/displays';
+	import { get_thumbnail_url } from '../ts/stores/thumbnails';
+	import { db } from '../ts/indexdb/file_thumbnails.db';
+	import { onDestroy, onMount } from 'svelte';
+	import { liveQuery } from 'dexie';
 
-	let { file } = $props<{ file: FolderElement }>();
+	let { file, not_interactable = false } = $props<{
+		file: FolderElement;
+		not_interactable?: boolean;
+	}>();
+
+	let thumbnail_url: string | null = $state(null);
+	// Update thumbnail_url automatically if data is available
+	const subscription = liveQuery(() => db.thumbnail_blobs.get(file.hash)).subscribe({
+		next: async () => {
+			thumbnail_url = await get_thumbnail_url(file.hash);
+		},
+		error: (err) => console.error('Dexie subscription error:', err)
+	});
+	onDestroy(() => subscription.unsubscribe());
 
 	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];
-			}
+	function get_created_string(date_object: Date | null, full_string = false) {
+		if (!date_object) {
+			return full_string ? 'Verschiedene Daten auf verschiedenen Bildschirmen' : 'versch.';
 		}
-		// 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)
@@ -76,18 +91,21 @@
 	}
 
 	function get_grayed_out_text_color_strings(is_selected: boolean): string {
+		if (not_interactable) return 'text-stone-400';
 		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';
 		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) return;
 		select(selected_file_ids, file.id);
 		e.stopPropagation();
 	}
@@ -97,63 +115,59 @@
 			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);
-				}
-			}
+			await run_on_all_selected_displays(open_file, true, path_to_file);
 		}
 	}
 </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, $all_files)[0].length !== 0}
-				<RefreshPlay className="size-full" />
-			{:else if get_file_type(file) !== null}
-				<Play class="size-full" strokeWidth="3" />
-			{:else}
-				<Ban class="size-full" strokeWidth="3" />
-			{/if}
-		</Button>
-	</div>
+	{#if !not_interactable}
+		<div class="h-{$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 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>
+	{/if}
 	<div
 		role="button"
 		tabindex="0"
@@ -161,28 +175,40 @@
 			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"
+		class="{get_selectable_color_classes(
+			!not_interactable && is_selected(file.id, $selected_file_ids),
+			{
+				bg: true,
+				hover: !not_interactable,
+				active: !not_interactable,
+				text: true
+			}
+		)} {not_interactable
+			? 'rounded-lg'
+			: 'rounded-r-lg cursor-pointer'} transition-colors duration-200 gap-4 flex flex-row justify-between 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">
+			<div class="aspect-square rounded-md flex justify-center items-center">
 				{#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" />
+					<Folder class="size-full p-2" />
+				{:else if thumbnail_url}
+					<img
+						src={thumbnail_url}
+						alt="file_thumbnail"
+						class="object-contain size-full select-none block p-1 rounded-lg"
+						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 />
+					<FileIcon class="size-full p-2" />
 				{/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}
+				{file.name.includes('.') && !is_folder && get_file_type(file)
+					? file.name.slice(0, file.name.lastIndexOf('.'))
+					: file.name}
 			</div>
 		</div>
 		<div
@@ -190,7 +216,7 @@
 				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, $all_files)[1].length !== 0}
+			<!-- {#if get_display_ids_where_file_is_missing($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"
@@ -216,7 +242,7 @@
 				>
 					<RefreshCcwDot class="size-full" />
 				</Button>
-			{/if}
+			{/if} -->
 			<div
 				class="w-14 content-center text-center select-none text-xs whitespace-nowrap"
 				title={get_created_string(file.date_created, true)}

control/frontend/src/components/HighlightedText.svelte

@@ -0,0 +1,12 @@
+<script lang="ts">
+	let {
+		children,
+		bg = 'bg-stone-750',
+		fg = 'text-stone-200',
+		className = ''
+	} = $props<{ children: any; bg?: string; fg?: string; className?: string }>();
+</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/components/KeyInput.svelte

@@ -0,0 +1,70 @@
+<script lang="ts">
+	import { flip } from 'svelte/animate';
+	import { get_selectable_color_classes } from '../ts/stores/ui_behavior';
+	import key_map_json from './../../../../shared/keys.json';
+	import { fade } from 'svelte/transition';
+	import { selected_display_ids } from '../ts/stores/select';
+	import { displays, get_display_by_id, run_on_all_selected_displays } from '../ts/stores/displays';
+	import { send_keyboard_input } from '../ts/api_handler';
+
+	const bg = 'bg-stone-700';
+	const key_map: Record<string, string> = key_map_json as Record<string, string>;
+
+	let active = $state(false);
+	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_down(e: KeyboardEvent) {
+		if (!active) return;
+		const id = key_map[e.code];
+		if (!id) return;
+		e.preventDefault();
+		e.stopPropagation();
+
+		add_to_last_keys(e.code);
+		if (e.repeat) return;
+
+		await run_on_all_selected_displays(send_keyboard_input, true, id);
+	}
+</script>
+
+<div
+	role="textbox"
+	tabindex="0"
+	bind:this={el}
+	onclick={() => {
+		if (active) {
+			el.blur();
+		} else {
+			el.focus();
+			active = true;
+		}
+	}}
+	onblur={() => (active = false)}
+	onkeydown={on_key_down}
+	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/components/Notification.svelte

@@ -0,0 +1,48 @@
+<script lang="ts">
+    import { fade } from "svelte/transition";
+    import Button from "./Button.svelte";
+	import { X } from "lucide-svelte";
+	import { notifications } from "../ts/stores/notification";
+	import { get_shifted_color } from "../ts/stores/ui_behavior";
+</script>
+
+<div class="fixed flex flex-col gap-2 {true ? "top-[41%]": "top-2"} 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-1 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">{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/components/OnlineState.svelte

@@ -1,17 +1,20 @@
 <script lang="ts">
+	import { type DisplayStatus } from "../ts/types";
+	import { display_status_to_info } from "../ts/utils";
+
 	let { selected, status, className = "" } = $props<{
 		selected: boolean;
-		status: string;
+		status: DisplayStatus;
         className?: string;
 	}>();
 
-	function get_text_color(selected: boolean, status: string) {
+	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 +23,5 @@
 </script>
 
 <div class="{get_text_color(selected, status)} {className} transition-colors duration-100">
-	{status}
+	{display_status_to_info(status)}
 </div>

control/frontend/src/components/PopUp.svelte

@@ -5,9 +5,16 @@
 	import type { PopupContent } from '../ts/types';
 	import { fade } from 'svelte/transition';
 
-	let { content, close_function } = $props<{
+	let {
+		content,
+		close_function,
+		className = '',
+		snippet_container_class = ''
+	} = $props<{
 		content: PopupContent;
 		close_function: () => void;
+		className?: string;
+		snippet_container_class?: string;
 	}>();
 
 	function try_to_close() {
@@ -31,37 +38,41 @@
 	<!-- 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"
+		class="absolute inset-0 backdrop-blur flex justify-center items-center {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-[80%] max-h-[80%] flex flex-col shadow-2xl/60 overflow-hidden"
+			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()}
 		>
-			<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}
+			{#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 flex-shrink-0 text-lg {content.title_class ??
+							''}"
+					>
+						{#if content.title_icon}
+							{@const Icon = content.title_icon}
+							<Icon strokeWidth="2" 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="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">
+			{/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>

control/frontend/src/components/TextInput.svelte

@@ -2,6 +2,7 @@
 	import { fade } from 'svelte/transition';
 	import { get_shifted_color } from '../ts/stores/ui_behavior';
 	import { onMount } from 'svelte';
+	import { selected_display_ids } from '../ts/stores/select';
 
 	let {
 		current_value = $bindable(),
@@ -10,7 +11,11 @@
 		bg = 'bg-stone-750',
 		title,
 		placeholder = '',
-		is_valid_function = null
+		is_valid_function = null,
+		focused_on_start = false,
+		extension = null,
+		enter_mode = 'none',
+		enter_function = null
 	} = $props<{
 		current_value: string;
 		current_valid: boolean;
@@ -19,11 +24,16 @@
 		title: string;
 		placeholder?: string;
 		is_valid_function?: ((input: string) => [boolean, string]) | null;
+		focused_on_start?: boolean;
+		extension?: string | null;
+		enter_mode?: 'none' | 'focus_next' | 'submit';
+		enter_function?: (() => void) | null;
 	}>();
 
 	let focus_bg = get_shifted_color(bg, 100);
-	let focussed = $state(false);
+	let focused: boolean = $state(false);
 	let current_info = $state('');
+	let input_element: HTMLInputElement;
 
 	function validate_input() {
 		if (!is_valid_function) return;
@@ -33,38 +43,92 @@
 	function get_highlighting_string(): string {
 		if (!is_valid_function) return '';
 		if (current_valid) {
-			return 'focus:inset-ring-2 focus:inset-ring-green-400';
+			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(() => {
 		validate_input();
+		if (focused_on_start && input_element) input_element.focus();
+
+		selected_display_ids.subscribe(() => {
+			validate_input();
+		});
 	});
 </script>
 
-<div class="flex flex-col {className}">
-	<div class="flex flex-row justify-between text-sm px-1">
+<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 && focussed}
-			<div class={current_valid ? "text-green-400" : "text-red-400"} transition:fade={{ duration: 100 }}>
+		{#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
+	<!-- <input
+		bind:this={input_element}
 		bind:value={current_value}
+		bind:focused
+		onkeydown={handle_keydown}
 		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}
-	/>
+	/> -->
+
+	<!-- 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 flex-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/components/TipTapInput.svelte

@@ -0,0 +1,256 @@
+<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,
+		Code,
+		Highlighter,
+		Italic,
+		PaintBucket,
+		QrCode,
+		Strikethrough
+	} from 'lucide-svelte';
+	import Button from './Button.svelte';
+	import { run_on_all_selected_displays } from '../ts/stores/displays';
+	import { show_html } from '../ts/api_handler';
+	import { get_selectable_color_classes } from '../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()
+		};
+	}
+
+	function show_text() {
+		const html =
+			editor_state.editor?.getHTML() +
+			`<style>:root {--background-color: ${color_states.bg.value} !important;}</style>`;
+		run_on_all_selected_displays(show_html, true, 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 class="flex flex-row gap-2 size-full">
+	<div
+		class="rounded-xl size-full flex-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;
+	}
+</style>

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

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

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

@@ -6,7 +6,7 @@
 	import DisplayView from '../components/DisplayView.svelte';
 	import SplashScreen from './../../../../shared/splash_screen.html?raw';
 	import PopUp from '../components/PopUp.svelte';
-	import type { PopupContent } from '../ts/types';
+	import { type PopupContent } from '../ts/types';
 	import TextInput from '../components/TextInput.svelte';
 	import {
 		add_display,
@@ -17,6 +17,12 @@
 		remove_display
 	} from '../ts/stores/displays';
 	import { text } from '@sveltejs/kit';
+	import { notifications } from '../ts/stores/notification';
+	import { ping_ip } from '../ts/api_handler';
+	import { onMount } from 'svelte';
+	import { on_start } from '../ts/main';
+	import { display_status_to_info } from '../ts/utils';
+	import HighlightedText from '../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))$/;
@@ -26,6 +32,7 @@
 		open: false,
 		snippet: null,
 		title: '',
+		title_class: '!text-xl',
 		closable: true
 	});
 
@@ -45,14 +52,15 @@
 		return true;
 	}
 
-	function finalize_add_edit_display(existing_display_id: string|null) {
+	async function finalize_add_edit_display(existing_display_id: string | null) {
 		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;
 		if (!!existing_display_id) {
-			edit_display_data(existing_display_id, ip, mac, name);
+			await edit_display_data(existing_display_id, ip, mac, name);
 		} else {
-			add_display(ip, mac, name, 'Online');
+			const status = await ping_ip(text_inputs_valid.ip.value);
+			await add_display(ip, mac, name, status);
 		}
 		popup_close_function();
 	}
@@ -65,9 +73,10 @@
 		text_inputs_valid = text_inputs_valid_null_values;
 		popup_content = {
 			open: true,
-			snippet: add_new_display_popup,
+			snippet: display_popup,
 			title: 'Neuen Bildschirm hinzufügen',
 			title_icon: Monitor,
+			title_class: '!text-xl',
 			closable: true
 		};
 	};
@@ -78,7 +87,7 @@
 			snippet: remove_display_popup,
 			snippet_arg: display_id,
 			title: 'Bildschirm wirklich löschen?',
-			title_class: 'text-red-400',
+			title_class: 'text-red-400 !text-xl',
 			title_icon: Trash2,
 			closable: true
 		};
@@ -94,20 +103,26 @@
 		}
 		popup_content = {
 			open: true,
-			snippet: add_new_display_popup,
+			snippet: display_popup,
 			snippet_arg: display_id,
 			title: 'Bildschirm bearbeiten',
 			title_icon: Monitor,
+			title_class: '!text-xl',
 			closable: true
 		};
 	};
+
+	onMount(() => {
+		on_start();
+	});
 </script>
 
 {#snippet remove_display_popup(display_id: string)}
 	<div class="max-w-prose px-2">
-		Soll der Bildschirm "{get_display_by_id(display_id, $displays)?.name || '?'}" 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.
+		Soll der Bildschirm <HighlightedText
+			>{get_display_by_id(display_id, $displays)?.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="px-4 font-bold" click_function={popup_close_function}>Abbrechen</Button>
@@ -123,8 +138,9 @@
 	</div>
 {/snippet}
 
-{#snippet add_new_display_popup(existing_display_id: string | null = null)}
+{#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"
@@ -138,6 +154,7 @@
 			if (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
@@ -151,10 +168,21 @@
 					: [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"
-				><Radio /> Ping</Button
+			<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>
@@ -170,6 +198,10 @@
 					? [true, 'Gültige MAC-Adresse']
 					: [false, 'Ungültige MAC-Adresse'];
 		}}
+		enter_mode="submit"
+		enter_function={() => {
+			finalize_add_edit_display(existing_display_id);
+		}}
 	/>
 	<div class="flex flex-row gap-2 justify-end pt-2">
 		{#if !!existing_display_id}
@@ -228,5 +260,10 @@
 			<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/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

@@ -1,41 +1,65 @@
-import type { FolderElement } from "./types";
+import { notifications } from "./stores/notification";
+import { to_display_status, type DisplayStatus, type FolderElement, type RequestResponse, type ShellCommandResponse, type TreeElement } from "./types";
 import { get_uuid } from "./utils";
 
-export async function get_screenshot(ip: string) {
+export async function get_screenshot(ip: string): Promise<Blob | null> {
     const options = { method: 'PATCH' };
-    return await request(ip, '/takeScreenshot', options);
+    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) {
+export async function open_file(ip: string, path_to_file: string): Promise<void> {
     const options = { method: 'PATCH', headers: { 'content-type': 'application/octet-stream' } };
-    const raw_response = await request(ip, `/file${path_to_file}`, options);
+    await request_display(ip, `/file${path_to_file}`, options);
 }
 
-export async function get_file_data(ip: string, path: string): Promise<FolderElement[]> {
+export async function send_keyboard_input(ip: string, key: string): Promise<void> {
+    const options = {
+        method: 'PATCH',
+        headers: { 'content-type': 'application/json' },
+        body: JSON.stringify({
+            key: key,
+        }),
+    };
+    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<FolderElement[] | 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, true);
+    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 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()
+    const response: FileInfo[] = json_response.stdout.trim()
         .split("\n")
         .filter(Boolean)
         .map((line: string) => JSON.parse(line) as FileInfo);
@@ -45,10 +69,14 @@ done
     for (const response_element of response) {
         // filter hidden files (start with '.' -> './.config')
         if (response_element.name.charAt(2) !== '.') {
+            const truncated = {
+                ...response_element,
+                created: response_element.created.slice(0, 16) // truncated to YYYY-MM-DD hh-mm -> no (milli)seconds
+            };
+
             const folder_element: FolderElement = {
                 id: get_uuid(),
-                hash: JSON.stringify(response),
-                thumbnail_url: null,
+                hash: JSON.stringify(truncated),
                 name: response_element.name.slice(2), // remove "./"
                 type: response_element.type,
                 date_created: new Date(response_element.created),
@@ -60,24 +88,158 @@ done
     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, true);
 
+    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;
 
-
-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: ${response.status}`);
-        }
-        const contentType = response.headers.get("content-type") || "";
-        if (!contentType.includes("application/json")) {
-            return await response.blob();
-        } else {
-            return await response.json();
-        }
-    } catch (error) {
-        console.error(error);
-    }
+    return (JSON.parse(json_response.stdout.trim()) as [TreeElement, any])[0].contents || null;
+}
+
+export async function create_folders(ip: string, path: string, folder_names: string[]): Promise<void> {
+    let command = `cd ".${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 "${file_name}"`;
+    }
+    const raw_response = await run_shell_command(ip, command);
+    if (!raw_response.ok || !raw_response.json) return;
+    const json_response = raw_response.json as ShellCommandResponse;
+    handle_shell_error(ip, json_response, command, true);
+}
+
+
+export async function show_blackscreen(ip: string): Promise<void> {
+    const options = {
+        method: 'PATCH',
+        headers: { 'content-type': 'application/json' },
+        body: JSON.stringify({
+            html: ``
+        })
+    };
+    await request_display(ip, '/showHTML', options);
+}
+
+export async function get_thumbnail_blob(ip: string, path_to_file: string): Promise<Blob | null> {
+    const raw_response = await request_display(ip, `/file/preview${path_to_file}`, { method: 'GET' }, true, [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=${ip}`, { method: 'GET' });
+    if (!raw_response.ok || !raw_response.json) return null;
+    return raw_response.json.status ? to_display_status(raw_response.json.status) : null;
+}
+
+
+
+async function request_display(ip: string, api_route: string, options: { method: string, headers?: Record<string, string>, body?: any }, log_in_debug: boolean = false, supress_error_handling_http_codes: number[] = []): Promise<RequestResponse> {
+    const url = `http://${ip}:1323/api${api_route}`;
+    return await request(url, options, log_in_debug, supress_error_handling_http_codes);
+}
+
+async function request_control(api_route: string, options: { method: string, headers?: Record<string, string>, body?: any }): Promise<RequestResponse> {
+    const url = `${window.location.origin}/api${api_route}`;
+    return await request(url, options);
+}
+
+
+async function request(url: string, options: { method: string, headers?: Record<string, string>, body?: any }, log_in_debug: boolean = false, supress_error_handling_http_codes: number[] = []): Promise<RequestResponse> {
+    try {
+        const cache_buster = `${url.includes('?') ? '&' : '?'}=${Date.now()}`;
+        if (log_in_debug) {
+            console.debug(url + cache_buster, options.body);
+        } else {
+            console.log(url + cache_buster, options.body);
+        }
+        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: Object = await response.json();
+                request_response = { ok: response.ok, http_code: response.status, json: json };
+            }
+            if (log_in_debug) {
+                console.debug(request_response);
+            } else {
+                console.log(request_response);
+            }
+            return request_response;
+        }
+
+        let error_description: string;
+        try {
+            const json: { description: string } = await response.json();
+            error_description = json.description;
+        } catch (error_on_json_parsing: any) {
+            error_description = `unknown error: ${error_on_json_parsing}`;
+        }
+        console.error(url, error_description);
+        notifications.push("error", `Fehler ${response.status} bei API-Anfrage`, `${url}\nFehler: ${error_description}`);
+    } catch (error: any) {
+        if (error instanceof TypeError && /fetch|NetworkError/i.test(error.message)) {
+            console.log("Request failed - Is the targeted device online?")
+        } else {
+            console.error(url, error);
+            notifications.push("error", `Fataler Fehler bei API-Anfrage`, `${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)) {
+            console.log("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, log_in_debug: boolean = false): Promise<RequestResponse> {
+    const options = {
+        method: 'PATCH',
+        headers: { 'content-type': 'application/json' },
+        body: JSON.stringify({
+            command: command
+        })
+    };
+    return await request_display(ip, '/shellCommand', options, log_in_debug);
 }

control/frontend/src/ts/indexdb/file_thumbnails.db.ts

@@ -0,0 +1,20 @@
+import Dexie, { type EntityTable } from "dexie";
+
+export interface ThumbnailBlobDBEntry {
+  hash: string;
+  blob: Blob;
+}
+
+export class FileDatabase extends Dexie {
+  thumbnail_blobs!: EntityTable<ThumbnailBlobDBEntry, "hash">; // (Type, PrimaryKey)
+
+  constructor() {
+    super("FileDatabase");
+
+    this.version(1).stores({
+      thumbnail_blobs: "++hash, blob" // primary key
+    });
+  }
+}
+
+export const db = new FileDatabase();

control/frontend/src/ts/main.ts

@@ -1,4 +1,34 @@
-export function on_start() {
+import { get } from "svelte/store";
+import { displays, run_on_all_selected_displays, update_displays_with_map, update_screenshot } from "./stores/displays"
+import { ping_ip } from "./api_handler";
+import type { Display } from "./types";
+import { change_file_path, update_folder_elements_recursively } from "./stores/files";
+import { db } from "./indexdb/file_thumbnails.db";
+
+const update_display_status_interval_seconds = 20;
+
+export async function on_start() {
+    await db.thumbnail_blobs.clear();
+    await update_all_display_status();
+    await setInterval(update_all_display_status, update_display_status_interval_seconds * 1000);
 
 }
 
+
+async function update_all_display_status() {
+    await update_displays_with_map(async (display: Display) => {
+        const new_status = await ping_ip(display.ip);
+        if (new_status === null && display.status !== null) return display;
+        if (new_status === "app_online" && display.status !== "app_online") {
+            await on_display_start(display);
+        }
+        return { ...display, status: new_status, };
+    });
+    console.log("Display Status updated")
+}
+
+
+async function on_display_start(display: Display) {
+    await update_folder_elements_recursively(display, '/');
+    await update_screenshot(display.id); 
+}

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

@@ -1,8 +1,9 @@
 import { get, writable, type Writable } from "svelte/store";
-import type { Display, DisplayGroup } from "../types";
+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 { filter_file_selection_for_current_selected_displays } from "./files";
 
 export const displays: Writable<DisplayGroup[]> = writable<DisplayGroup[]>([{
     id: get_uuid(),
@@ -17,27 +18,23 @@ export function is_display_name_taken(name: string): boolean {
     );
 }
 
-export function add_display(ip: string, mac: string | null, name: string, status: string) {
+export function add_display(ip: string, mac: string | null, name: string, status: DisplayStatus) {
     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 edit_display_data(display_id: string, ip: string, mac: string | null, name: string) {
-    displays.update((display_groups) =>
-        display_groups.map((group) => ({
-            ...group,
-            data: group.data.map((display) => {
-                if (display.id !== display_id) return display;
-                return { ...display, ip: ip, mac: mac, name: name };
-            }),
-        }))
-    );
+export async function edit_display_data(display_id: string, ip: string, mac: string | null, name: string) {
+    await update_displays_with_map((display: Display) => {
+        if (display.id !== display_id) return display;
+        return { ...display, ip: ip, mac: mac, name: name };
+    })
 }
 
 export function remove_display(display_id: string) {
-    console.log(display_id);
+    select(selected_display_ids, display_id, false);
+    filter_file_selection_for_current_selected_displays();
     displays.update((displays: DisplayGroup[]) => {
         displays = displays.map(display_group => ({
             ...display_group,
@@ -63,6 +60,7 @@ export function select_all_of_group(display_group: DisplayGroup, new_value: bool
     for (const display of display_group.data) {
         select(selected_display_ids, display.id, new_value);
     }
+    filter_file_selection_for_current_selected_displays();
 }
 
 export function set_new_display_group_data(display_group_id: string, new_data: Display[]) {
@@ -115,6 +113,13 @@ export async function update_screenshot(display_id: string, check_type: "first_c
     const display_ip = get_display_by_id(display_id, get(displays))?.ip;
     if (!display_ip) return;
     const new_blob = await get_screenshot(display_ip);
+    if (!new_blob) {
+        update_displays_with_map((display: Display) => {
+            if (display.id !== display_id) return display;
+            return { ...display, preview_url: null, preview_timeout_id: null };
+        })
+        return;
+    }
     const display = get_display_by_id(display_id, get(displays));
 
     let update_needed = check_type === "first_check";
@@ -123,7 +128,6 @@ export async function update_screenshot(display_id: string, check_type: "first_c
             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
         }
     }
@@ -137,23 +141,41 @@ export async function update_screenshot(display_id: string, check_type: "first_c
     }
 
     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 };
-                }),
-            }))
-        );
+        update_displays_with_map((display: 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 };
+        })
     }
 }
 
 
+export async function update_displays_with_map(update_function: (display: Display) => Display | Promise<Display>) {
+    const display_groups = get(displays);
+    const updated_groups = await Promise.all(
+        display_groups.map(async (group: DisplayGroup) => ({
+            ...group,
+            data: await Promise.all(group.data.map(update_function)),
+        }))
+    );
+    displays.set(updated_groups);
+}
+
+export async function run_on_all_selected_displays(run_function: ((ip: string, ...args: any[]) => void | Promise<void>), update_screenshot_afterwards: boolean, ...args: any[]) {
+    for (const display_id of get(selected_display_ids)) {
+        const display_ip = get_display_by_id(display_id, get(displays))?.ip;
+        if (display_ip) {
+            await run_function(display_ip, ...args)
+            if (update_screenshot_afterwards) {
+                await update_screenshot(display_id);
+            }
+        }
+    }
+}
+
 
 
 
@@ -164,6 +186,6 @@ function add_testing_displays() {
     //     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");
+    add_display("127.0.0.1", "00:1A:2B:3C:4D:5E", "PC", "host_offline");
+    // add_display("192.168.178.111", "D4:81:D7:C0:DF:3C", "Laptop", "host_offline");
 }

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

@@ -1,9 +1,11 @@
 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";
+import type { Display, FolderElement, TreeElement } from "../types";
+import { displays, get_display_by_id } from "./displays";
+import { select, selected_display_ids, selected_file_ids } from "./select";
+import { get_file_data, get_file_tree_data } from "../api_handler";
+import { notifications } from "./notification";
+import { CirclePoundSterling } from "lucide-svelte";
+import { deactivate_old_thumbnail_urls, generate_thumbnail } from "./thumbnails";
 
 export const all_files: Writable<Record<string, Record<string, FolderElement[]>>> = writable<Record<string, Record<string, FolderElement[]>>>({});
 // {
@@ -21,17 +23,51 @@ export const all_files: Writable<Record<string, Record<string, FolderElement[]>>
 export const current_file_path: Writable<string> = writable<string>('/');
 
 
-export function change_file_path(new_path: 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();
+
+    for (const display_group of get(displays)) {
+        for (const display of display_group.data) {
+            const changed_paths = await get_changed_directory_paths(display, new_path);
+            if (!changed_paths) continue;
+            console.log("Update file system from", display.name, ":", changed_paths);
+            for (const path of changed_paths) {
+                update_folder_elements_recursively(display, path);
+            }
+        }
+    }
+}
+
+export async function filter_file_selection_for_current_selected_displays() {
+    for (const selected_file_id of get(selected_file_ids)) {
+        if (!get_file_by_id(selected_file_id, get(all_files), get(current_file_path), true)) {
+            // file not found in selected displays
+            select(selected_file_ids, selected_file_id, false);
+        }
+    }
+}
+
+export async function update_current_folder_on_selected_displays() {
+    selected_file_ids.update(() => {
+        return [];
+    });
+    const current_path = get(current_file_path);
+    for (const display_id of get(selected_display_ids)) {
+        const display = get_display_by_id(display_id, get(displays));
+        if (!display) continue;
+        update_folder_elements_recursively(display, current_path);
+    }
 }
 
 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 [];
+    if (!all_files.hasOwnProperty(path)) return [selected_display_ids, []];
     const missing: string[] = [];
     const colliding: string[] = [];
     Display:
@@ -53,36 +89,134 @@ export function get_display_ids_where_file_is_missing(path: string, file: Folder
     return [missing, colliding];
 }
 
+export function get_display_ids_where_path_does_not_exist(path: string, selected_display_ids: string[], all_files: Record<string, Record<string, FolderElement[]>>): string[] {
+    if (!all_files.hasOwnProperty(path)) return selected_display_ids;
+    const out: string[] = [];
+    for (const selected_display_id of selected_display_ids) {
+        if (!all_files[path].hasOwnProperty(selected_display_id)) {
+            out.push(selected_display_id);
+        }
+    }
+    return out;
+}
 
-export function updates_files_on_display(display_id: string, new_folder_elements: FolderElement[], file_path: string) {
-    all_files.update((files) => {
+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 = get_recursive_changed_directory_paths(display, file_path, current_folder, get(all_files));
+    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)))));
+}
+
+function get_recursive_changed_directory_paths(display: Display, current_file_path: string, current_folder_elements: TreeElement[] | null, files: Record<string, Record<string, FolderElement[]>>): Set<string> {
+    const files_folder: FolderElement[] = files[current_file_path][display.id];
+    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
+    }
+
+    let 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 get_recursive_changed_directory_paths(display, new_file_path, tree_folder_element.contents, files)) {
+                has_changed.add(string);
+            }
+        }
+    }
+    return has_changed;
+}
+
+export async function update_folder_elements_recursively(display: Display, file_path: string = '/'): Promise<number> {
+    const new_folder_elements = await get_file_data(display.ip, file_path);
+    if (new_folder_elements === null) return 0;
+    all_files.update((files: Record<string, Record<string, FolderElement[]>>) => {
         if (!files.hasOwnProperty(file_path)) {
             files[file_path] = {};
         }
-        for (const new_folder_element of new_folder_elements) {
-            new_folder_element.id = get_uuid();
+        if (!files[file_path].hasOwnProperty(display.id)) {
+            files[file_path][display.id] = [];
         }
-        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)
+        const existing_folder_elements = files[file_path].hasOwnProperty(display.id) ? files[file_path][display.id] : [];
+
+        const diff = get_folder_elements_difference(existing_folder_elements, new_folder_elements);
+        // Generate Thumbnails:
+        setTimeout(async () => {
+            for (const folder_element of diff.new) {
+                await generate_thumbnail(display.ip, file_path, folder_element);
+            }
+        }, 0)
+
+        files[file_path][display.id].push(...diff.new);
+        return remove_folder_elements_recursively(files, display, diff.deleted, file_path);
+    })
+
+    let folder_size = 0;
+    for (const element of new_folder_elements) {
+        if (element.type === 'inode/directory') {
+            const folder_content_size = await update_folder_elements_recursively(display, file_path + element.name + '/');
+            folder_size += folder_content_size;
+            // Update foldersize
+            all_files.update((files: Record<string, Record<string, FolderElement[]>>) => {
+                for (const current_folder_element of files[file_path][display.id]) {
+                    if (current_folder_element.id === element.id) {
+                        current_folder_element.size = folder_content_size;
+                    }
+                }
+                return files;
+            })
+        } else {
+            folder_size += element.size;
         }
     }
+    return folder_size;
 }
 
+function remove_folder_elements_recursively(files: Record<string, Record<string, FolderElement[]>>, display: Display, folder_elements: FolderElement[], file_path: string): Record<string, Record<string, FolderElement[]>> {
+    if (!files.hasOwnProperty(file_path) || !files[file_path].hasOwnProperty(display.id)) {
+        console.error("File remove path does not exist:", files, display, folder_elements, file_path);
+        notifications.push("error", "Fehler beim Aktualisieren der Dateien", `File remove path does not exist: ${file_path} display_ip: ${display.ip}`);
+        return {};
+    }
+    for (const folder_element of folder_elements) {
+        files[file_path][display.id] = files[file_path][display.id].filter((f) => f.id !== folder_element.id);
+
+        if (folder_element.type === 'inode/directory') {
+            const new_file_path = file_path + folder_element.name + '/';
+            if (!files.hasOwnProperty(new_file_path) || !files[new_file_path].hasOwnProperty(display.id)) {
+                console.error("File remove path does not exist (recursion):", files, display, folder_elements, file_path, new_file_path);
+                notifications.push("error", "Fehler beim Aktualisieren der Dateien", `File remove path does not exist (recursion): ${new_file_path} display_ip: ${display.ip}`);
+                return {};
+            }
+            const sub_folder = files[new_file_path][display.id];
+            remove_folder_elements_recursively(files, display, sub_folder, new_file_path);
+        }
+    }
+
+    return files;
+}
+
+function get_folder_elements_difference(old_elements: FolderElement[], new_elements: FolderElement[]): { deleted: FolderElement[], new: FolderElement[] } {
+    const old_hashes = new Set(old_elements.map(e => e.hash));
+    const new_hashes = new Set(new_elements.map(e => e.hash));
+
+    const only_in_old = old_elements.filter(e => !new_hashes.has(e.hash));
+    const only_in_new = new_elements.filter(e => !old_hashes.has(e.hash));
+    return { deleted: only_in_old, new: only_in_new };
+}
+
+
 
 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 [];
-    }
+    if (!all_files.hasOwnProperty(current_file_path)) return [];
+
     const files_on_display_array = all_files[current_file_path];
     const files: FolderElement[] = [];
     for (const key of Object.keys(files_on_display_array)) {
@@ -90,17 +224,21 @@ export function get_current_folder_elements(all_files: Record<string, Record<str
             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;
-                        }
+                    const both_same_folder = file_on_display.type === "inode/directory" && existing_file.type === "inode/directory" && file_on_display.name === existing_file.name;
+                    if (both_same_folder && file_on_display.size !== existing_file.size) {
+                        existing_file.size = -1;
+                    }
+                    if (file_on_display.hash === existing_file.hash) {
+                        continue FileOnDisplay;
+                    } else if (both_same_folder) {
+                        existing_file.date_created = null;
+                        continue FileOnDisplay;
                     }
                 }
-                files.push(file_on_display);
+                files.push({ ...file_on_display });
             }
         }
     }
-
     return sort_files(files);
 }
 
@@ -118,125 +256,62 @@ function sort_files(files: FolderElement[]) {
         if (nameCompare !== 0) return nameCompare;
 
         // Wenn name gleich, absteigend nach date_created
+        if (!b.date_created || !a.date_created) return -1;
         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"
-    //     },], '/');
+export function get_file_by_id(file_id: string, all_files: Record<string, Record<string, FolderElement[]>>, current_file_path: string, only_from_selected_displays: boolean = false): FolderElement | null {
+    let current_path_elements: Record<string, FolderElement[]> | undefined = all_files[current_file_path];
+    if (!current_path_elements) return null;
+    if (only_from_selected_displays) {
+        current_path_elements = Object.fromEntries(
+            Object.entries(current_path_elements).filter(([key]) => get(selected_file_ids).includes(key))
+        );
+    }
+    const all_folder_elements = Object.values(current_path_elements).flat();
+    const found = all_folder_elements.find(el => el.id === file_id);
+    if (!found) return null;
+    return found
+}
+
+export async function run_for_selected_files_on_selected_displays(action: (ip: string, file_names: string[]) => Promise<void>): Promise<void> {
+    const files = get(all_files);
+    const file_path = get(current_file_path);
+    const folder_elements: FolderElement[] = get(selected_file_ids)
+        .map((file_id) => get_file_by_id(file_id, files, file_path))
+        .filter((element) => element !== null);
+    const folder_element_hashs = folder_elements
+        .map((folder_element) => folder_element.hash)
+        .filter((hash) => hash !== null);
+
+    for (const display_id of get(selected_display_ids)) {
+        if (!files[file_path].hasOwnProperty(display_id)) continue;
+        const files_on_display = files[file_path][display_id];
+
+        const selected_file_names_on_display: string[] = files_on_display
+            .filter((e) => (e.hash && folder_element_hashs.includes(e.hash)) || (e.type === 'inode/directory' && folder_elements.some(e2 => e2.name === e.name && e2.type === 'inode/directory')))
+            .map((folder_element) => folder_element.name);
+        if (selected_file_names_on_display.length === 0) continue;
+
+        const display = get_display_by_id(display_id, get(displays));
+        if (!display) continue;
+
+        await action(display.ip, selected_file_names_on_display);
+    }
+
+}
+
+export function get_longest_existing_path_and_needed_parts(path: string, display_id: string, all_files: Record<string, Record<string, FolderElement[]>>): { existing: string; needed: string[] } {
+    const path_parts = path.slice(1, path.length - 1).split('/').filter(e => e.length !== 0); // remove front and back / and split after that, then remove empty strings
+    for (let i = path_parts.length; i > 0; i--) {
+        const current_path = '/' + [...path_parts].splice(0, i).join('/') + '/';;
+        if (all_files.hasOwnProperty(current_path)) {
+            if (all_files[current_path].hasOwnProperty(display_id)) {
+                return { existing: current_path, needed: [...path_parts].splice(i) };
+            }
+        }
+    }
+    return { existing: '/', needed: path_parts };
 }

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

@@ -0,0 +1,28 @@
+import { get, 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/ts/stores/thumbnails.ts

@@ -0,0 +1,38 @@
+import { get, writable, type Writable } from "svelte/store";
+import { get_thumbnail_blob } from "../api_handler";
+import { type FolderElement } from "../types";
+import { db, type ThumbnailBlobDBEntry } from "../indexdb/file_thumbnails.db";
+import { get_file_type } from "../utils";
+
+export const active_thumbnail_urls: Writable<string[]> = writable<string[]>([]);
+
+export async function generate_thumbnail(display_ip: string, path: string, folder_element: FolderElement): Promise<void> {
+    const supported_file_type = get_file_type(folder_element);
+    if (!supported_file_type || !folder_element.hash) return;
+    const hash: string = folder_element.hash;
+    if (await db.thumbnail_blobs.get(hash)) return;
+
+    const thumbnail_blob = await get_thumbnail_blob(display_ip, path + folder_element.name);
+    if (!thumbnail_blob) return;
+    await db.thumbnail_blobs.add({ hash: hash, blob: thumbnail_blob });
+}
+
+export async function get_thumbnail_url(hash: string | null): Promise<string | null> {
+    if (hash === null) return null;
+    const thumbnail_blob = await db.thumbnail_blobs.get(hash) as ThumbnailBlobDBEntry;
+    if (!thumbnail_blob) return null;
+    const new_url = URL.createObjectURL(thumbnail_blob.blob);
+    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/ts/types.ts

@@ -1,57 +1,46 @@
-import { FileBox, FileImage, FileVideoCamera, ImagePlay, type X } from "lucide-svelte";
+import { FileBox, FileImage, FileText, FileVideoCamera, ImagePlay, type X } from "lucide-svelte";
 import type { Snippet } from "svelte";
 
-export type SupportedFileType = {
-    display_name:
-    string; mime_type:
-    string; icon: typeof X;
-};
+export type RequestResponse = {
+    ok: boolean,
+    http_code?: number
+    blob?: Blob,
+    json?: any,
+}
 
-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 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 FolderElement = {
-    id?: string;
-    hash: string | null;
-    thumbnail_url: string | null;
+    id: string;
+    hash: string;
     name: string;
     type: string;
-    date_created: Date;
+    date_created: Date | null;
+    size: number;
+}
+
+export type TreeElement = {
+    contents?: TreeElement[];
+    type: "file" | "directory";
+    name: string;
     size: number;
 }
 
@@ -63,7 +52,7 @@ export type Display = {
     preview_timeout_id: number | null;
     mac: string | null;
     name: string;
-    status: string;
+    status: DisplayStatus;
 }
 
 export type DisplayGroup = {
@@ -84,8 +73,17 @@ export type PopupContent = {
     open: boolean;
     snippet: Snippet<[string]> | null;
     snippet_arg?: string;
-    title: 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/ts/utils.ts

@@ -1,19 +1,41 @@
-export function get_uuid(): string {
-    return crypto.randomUUID();
+import type { DisplayStatus, FolderElement, 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>;
+
+export 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;
 }
 
-export function get_file_size_display_string(size: number, toFixed: number|null = null): string {
-    if (size === 0) return "0 B";
+export function get_uuid(): string {
+  return crypto.randomUUID();
+}
 
-    const k = 1024;
-    const sizes = ["B", "KB", "MB", "GB", "TB"];
+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 i = Math.floor(Math.log(size) / Math.log(k));
-    const value = size / Math.pow(k, i);
+  const k = 1024;
+  const sizes = ["B", "KB", "MB", "GB", "TB"];
 
-    const size_string = `${value.toFixed(toFixed !== null ? toFixed : Math.max(0, 2 - Math.floor(Math.log10(value))))} ${sizes[i]}`;
+  const i = Math.floor(Math.log(size) / Math.log(k));
+  const value = size / Math.pow(k, i);
 
-    return size_string.replace('.', ',');
+  const size_string = `${value.toFixed(toFixed !== null ? toFixed : Math.max(0, 2 - Math.floor(Math.log10(value))))} ${sizes[i]}`;
+
+  return size_string.replace('.', ',');
 }
 
 
@@ -40,3 +62,21 @@ export async function image_content_hash(blob: Blob, size = 32): Promise<number>
   return hash >>> 0; // unsigned int
 }
 
+
+
+export function is_valid_name(input: string): boolean {
+  return /^[\p{L}\p{N}\p{M}\-_.+,()[\]{}@!§$%&=~^ ]+$/u.test(input);
+}
+
+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 '???';
+  }
+}

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

@@ -4,16 +4,37 @@ 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
@@ -25,14 +46,25 @@ func main() {
 	// Servers all API endpoints, e.g. our custom logic
 	apiGroup := e.Group("/api")
 	apiGroup.GET("/ping", pingRoute)
+	apiGroup.POST("/wakeOnLan", wakeOnLanRoute)
+	apiGroup.GET("/storage", getStorageRoute)
+	apiGroup.POST("/storage", setStorageRoute)
 
 	port := "8080"
 
-	go shared.OpenBrowserWindow("http://localhost:"+port, false, false)
-
-	err := e.Start(":" + port)
+	// 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)
 	}
 }
 
@@ -61,3 +93,28 @@ 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/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 +1,102 @@
-# 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
-- Chromium
-- LibreOffice (presentation view)
-- ImageMagick (file preview)
-- ffmpeg (file preview)
-- Ghostscript (file preview)
+## Default
 
-## Development Setup
+### Responses
 
-- install Go (at least version v1.25)
-- build template: `go generate ./..`
-- run code: `go run .`
+#### All Errors
+
+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
+
+- `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/mod v0.24.0 // 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/tools v0.32.0 // indirect
+	golang.org/x/crypto v0.40.0 // indirect
+	golang.org/x/mod v0.26.0 // indirect
+	golang.org/x/net v0.42.0 // indirect
+	golang.org/x/sync v0.16.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/text v0.27.0 // 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 v0.3.924/go.mod h1:FFAu4dI//ESmEN7PQkJ7E7QfnSEMdcnu7QrAY8Dn334=
+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/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 v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
-golang.org/x/mod v0.24.0 h1:ZfthKaKaT4NrhGVZHO1/WDTwGES4De8KtWO0SIbNJMU=
-golang.org/x/mod v0.24.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
-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 v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
-golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+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 v0.26.0 h1:EGMPT//Ezu+ylkCijjPc+f4Aih7sZvaAr+O3EHBxvZg=
+golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
+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 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
+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 v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
-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/tools v0.32.0 h1:Q7N1vhpkQv7ybVzLFtTjvQya2ewbwNDZzUgfXGqtMWU=
-golang.org/x/tools v0.32.0/go.mod h1:ZxrU41P/wAbZD8EDa6dDCa6XfpkhJ7HFMjHJXfBDu8s=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
+golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
+golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
+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

@@ -24,8 +24,10 @@ func main() {
 		return
 	}
 	port := "1323"
-	go web.StartWebServer(VERSION, port)
 
+	// 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 web.StartWebServer(VERSION, port)
 	err = shared.OpenBrowserWindow("http://localhost:"+port, true, true)
 	if err != nil {
 		slog.Error("Failed to open browser window", "error", err)

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

@@ -10,8 +10,9 @@ import (
 	"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
@@ -36,7 +37,7 @@ 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 := shared.RunShellCommand(cmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {
@@ -53,7 +54,7 @@ func generatePDFPreview(inputPath string, outputPath string) error {
 		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 := shared.RunShellCommand(cmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {

display/pkg/main.go

@@ -16,8 +16,6 @@ import (
 	"github.com/micmonay/keybd_event"
 )
 
-
-
 func GetDeviceIp() (string, error) {
 	addrs, err := net.InterfaceAddrs()
 	if err != nil {
@@ -49,24 +47,31 @@ func GetDeviceMac() (string, error) {
 	return "", fmt.Errorf("no suitable MAC address found")
 }
 
-func OpenPresentation(path string) error {
-	cmd := exec.Command("bash", "-c", "-r", fmt.Sprintf("soffice --show %s -nologo -norestore", path))
-	result := shared.RunShellCommand(cmd)
-	if result.ExitCode != 0 {
-		return errors.New(result.Stderr)
-	}
-	return nil
-}
+type KeyAction int
+
+const (
+	KeyPress KeyAction = iota
+	KeyRelease
+)
+
+func KeyboardInput(key int, action KeyAction) error {
+	var err error
 
-func KeyboardInput(key int) 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 {
-		return fmt.Errorf("failed to launch key event: %w", err)
+	switch action {
+	case KeyPress:
+		err = kb.Press()
+	case KeyRelease:
+		err = kb.Release()
+	}
+
+	if err != nil {
+		return fmt.Errorf("failed to run key event: %w", err)
 	}
 
 	return nil
@@ -90,7 +95,6 @@ func TakeScreenshot() (string, error) {
 	return "", errors.New("no screenshot utility found or all failed")
 }
 
-
 func GetStoragePath() (string, error) {
 	var storagePath string
 
@@ -98,7 +102,7 @@ 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)
 	}
@@ -136,4 +140,3 @@ func ResolveStorageFilePath(pathParam string) (string, bool, error) {
 
 	return fullPath, true, nil
 }
-

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

@@ -5,37 +5,26 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"image/color"
 	"io"
 	"log/slog"
+	"net"
 	"net/http"
 	"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, port string) {
 	version = v
@@ -47,6 +36,13 @@ func StartWebServer(v string, port 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())
@@ -94,8 +90,9 @@ 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(),
 	}
@@ -124,13 +121,36 @@ 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")
 		fullPath, exists, err := pkg.ResolveStorageFilePath(pathParam)
 		if err != nil {
 			slog.Warn("Failed to validate file path", "path", pathParam, "error", err)
-			return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid file path"})
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid file path"})
 		}
 		ctx.Set("fullPath", fullPath)
 		ctx.Set("fileExists", exists)
@@ -144,14 +164,14 @@ 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
 
@@ -166,117 +186,156 @@ func shellCommandRoute(ctx echo.Context) error {
 
 func keyboardInputRoute(ctx echo.Context) error {
 	var request struct {
-		Key string `json:"key"`
+		Key    string `json:"key"`
+		Action string `json:"action"`
 	}
 	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})
+	}
+	if request.Action != "press" && request.Action != "release" {
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
 	code, ok := pkg.KeyboardEvents[request.Key]
 	if !ok {
 		slog.Error("Unsupported key", "key", request.Key)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: fmt.Sprintf("Unsupported key: %s", request.Key)})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: fmt.Sprintf("Unsupported key: %s", request.Key)})
 	}
 
-	err := pkg.KeyboardInput(code)
+	var action pkg.KeyAction
+	if request.Action == "press" {
+		action = pkg.KeyPress
+	}
+	if request.Action == "release" {
+		action = pkg.KeyRelease
+	}
+
+	err := pkg.KeyboardInput(code, action)
 	if err != nil {
 		slog.Error("Failed to send keyboard input", "key", request.Key, "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)
-	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))
-	if !supportedExtensions[ext] {
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: fmt.Sprintf("Unsupported file extension: %s", ext)})
-	}
-
-	data, err := io.ReadAll(ctx.Request().Body)
+	file, err := os.Create(fullPath)
 	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 {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to save file"})
+	err = file.Sync() // ensure data is flushed to disk
+	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)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		slog.Error("Failed to open file", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open file"})
 	}
+	defer file.Close()
 
-	slog.Info("File downloaded successfully", "path", fullPath)
-	return nil
+	return ctx.Stream(http.StatusOK, "application/octet-stream", file)
 }
 
 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))
-	switch ext {
-	case ".mp4":
+	mType, err := mimetype.DetectFile(fullPath)
+	if err != nil {
+		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":
-		err := pkg.OpenPresentation(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"})
-		}
+	case "application/pdf", "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
+		err = pkg.FileHandler.OpenFile(fullPath)
 	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 +344,19 @@ 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 +371,13 @@ 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 +387,19 @@ 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 +407,22 @@ 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>
-	<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%);
-				}
+<!DOCTYPE html>
+<html lang="en">
 
-				video, img, iframe {
-	    			width: 100vw;    /* Viewport width */
-	                height: 100vh;   /* Viewport height */
-	    			object-fit: contain;
-				}
+<head>
+	<meta charset="UTF-8" />
+	<meta name="viewport" content="width=device-width, initial-scale=1.0" />
+	<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 {
-				    font-size: 6rem;
-					line-height: 1;
-					font-family: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
-					text-wrap: balance;
-					max-width: 90vw;
-					word-break: break-word;
-					display: block;
+		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: 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) {
-				    if (event.code === 'Space') {
-				        event.preventDefault();
-				        var video = document.querySelector('video');
-				        if (video) {
-				            if (video.paused) {
-				                video.play();
-				            } else {
-				                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>
+			}
+		});
+	</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>
-		<source src={ "/api/file/" + path } type="video/mp4"/>
-	</video>
+<video autoplay>
+	<source src={ "/api/file/" + path } type="video/mp4" />
+</video>
 }
 
 templ imageTemplate(path string) {
-	<img src={ "/api/file/" + path }/>
+<img src={ "/api/file/" + path } />
 }
 
-templ deviceInfoTemplate(ip string, mac string) {
-	<p>
+templ deviceInfoTemplate(ip string, mac string, showQR bool) {
+<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}})();

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 +1,153 @@
+{
+  config,
+  pkgs,
+  ...
+}: {
+  imports = [
+    ./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
+  ];
+
+  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 +1,27 @@
+{
+  "nodes": {
+    "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": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nixos/flake.nix

@@ -0,0 +1,21 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  } @ inputs: {
+    nixosConfigurations.mudics = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      specialArgs = {
+        inherit inputs;
+      };
+      modules = [
+        ./configuration.nix
+      ];
+    };
+  };
+}

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/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

@@ -2,8 +2,10 @@ package shared
 
 import (
 	"bytes"
+	"context"
 	"errors"
 	"os/exec"
+	"time"
 )
 
 type CommandResponse struct {
@@ -12,7 +14,11 @@ type CommandResponse struct {
 	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
@@ -20,6 +26,34 @@ func RunShellCommand(cmd *exec.Cmd) CommandResponse {
 	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(),

shared/open_browser.go

@@ -23,13 +23,15 @@ func OpenBrowserWindow(url string, fullscreen bool, temp bool) error {
 		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("chromium not found in PATH")
+	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
-			x="325"
-			y="350"
-			width="300"
-			height="168.75"
-			rx="8"
-			ry="8"
-			class="splash-control-monitor"
-		/>
+		<rect 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
-			class="cursor"
-			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"
-			>
+		<svg class="cursor" 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 {

shared/supported_file_types.json

@@ -0,0 +1,34 @@
+{
+    ".mp4": {
+        "display_name": "MP4",
+        "mime_type": "video/mp4"
+    },
+    ".jpg": {
+        "display_name": "JPG",
+        "mime_type": "image/jpg"
+    },
+    ".jpeg": {
+        "display_name": "JPG",
+        "mime_type": "image/jpeg"
+    },
+    ".png": {
+        "display_name": "PNG",
+        "mime_type": "image/png"
+    },
+    ".gif": {
+        "display_name": "GIF",
+        "mime_type": "image/gif"
+    },
+    ".pptx": {
+        "display_name": "PPTX",
+        "mime_type": "application/vnd.openxmlformats-officedocument.presentationml.presentation"
+    },
+    ".odp": {
+        "display_name": "ODP",
+        "mime_type": "application/vnd.oasis.opendocument.presentation"
+    },
+    ".pdf": {
+        "display_name": "PDF",
+        "mime_type": "application/pdf"
+    }
+}