fix(control): check for main button

closes #25

control/frontend/deno.lock

@@ -3,7 +3,6 @@
   "specifiers": {
     "npm:@eslint/compat@^1.4.1": "1.4.1_eslint@9.39.2",
     "npm:@eslint/js@^9.39.2": "9.39.2",
-    "npm:@playwright/test@1.56.1": "1.56.1",
     "npm:@sveltejs/adapter-auto@^6.1.1": "6.1.1_@sveltejs+kit@2.49.3__@sveltejs+vite-plugin-svelte@6.2.3___svelte@5.46.1____acorn@8.15.0___vite@7.3.1____sass-embedded@1.97.2____picomatch@4.0.3___sass-embedded@1.97.2__svelte@5.46.1___acorn@8.15.0__typescript@5.9.3__vite@7.3.1___sass-embedded@1.97.2___picomatch@4.0.3__acorn@8.15.0__sass-embedded@1.97.2_@sveltejs+vite-plugin-svelte@6.2.3__svelte@5.46.1___acorn@8.15.0__vite@7.3.1___sass-embedded@1.97.2___picomatch@4.0.3__sass-embedded@1.97.2_svelte@5.46.1__acorn@8.15.0_typescript@5.9.3_vite@7.3.1__sass-embedded@1.97.2__picomatch@4.0.3_sass-embedded@1.97.2",
     "npm:@sveltejs/adapter-static@^3.0.10": "3.0.10_@sveltejs+kit@2.49.3__@sveltejs+vite-plugin-svelte@6.2.3___svelte@5.46.1____acorn@8.15.0___vite@7.3.1____sass-embedded@1.97.2____picomatch@4.0.3___sass-embedded@1.97.2__svelte@5.46.1___acorn@8.15.0__typescript@5.9.3__vite@7.3.1___sass-embedded@1.97.2___picomatch@4.0.3__acorn@8.15.0__sass-embedded@1.97.2_@sveltejs+vite-plugin-svelte@6.2.3__svelte@5.46.1___acorn@8.15.0__vite@7.3.1___sass-embedded@1.97.2___picomatch@4.0.3__sass-embedded@1.97.2_svelte@5.46.1__acorn@8.15.0_typescript@5.9.3_vite@7.3.1__sass-embedded@1.97.2__picomatch@4.0.3_sass-embedded@1.97.2",
     "npm:@sveltejs/kit@^2.49.3": "2.49.3_@sveltejs+vite-plugin-svelte@6.2.3__svelte@5.46.1___acorn@8.15.0__vite@7.3.1___sass-embedded@1.97.2___picomatch@4.0.3__sass-embedded@1.97.2_svelte@5.46.1__acorn@8.15.0_typescript@5.9.3_vite@7.3.1__sass-embedded@1.97.2__picomatch@4.0.3_acorn@8.15.0_sass-embedded@1.97.2",
@@ -369,13 +368,6 @@
       ],
       "scripts": true
     },
-    "@playwright/test@1.56.1": {
-      "integrity": "sha512-vSMYtL/zOcFpvJCW71Q/OEGQb7KYBPAdKh35WNSkaZA75JlAO8ED8UN6GUNTm3drWomcbcqRPFqQbLae8yBTdg==",
-      "dependencies": [
-        "playwright"
-      ],
-      "bin": true
-    },
     "@polka/url@1.0.0-next.29": {
       "integrity": "sha512-wwQAWhWSuHaag8c4q/KN/vCoeOJYshAIvMQwD4GpSb3OiZklFfvAgmj0VCBBImRpuF/aFgIRzllXlVX93Jevww=="
     },
@@ -1374,11 +1366,6 @@
     "flatted@3.3.3": {
       "integrity": "sha512-GX+ysw4PBCz0PzosHDepZGANEuFCMLrnRTiEy9McGjmkCQYwRq4A/X786G/fjM/+OjsWSU1ZrY5qyARZmO/uwg=="
     },
-    "fsevents@2.3.2": {
-      "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
-      "os": ["darwin"],
-      "scripts": true
-    },
     "fsevents@2.3.3": {
       "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
       "os": ["darwin"],
@@ -1694,20 +1681,6 @@
     "picomatch@4.0.3": {
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q=="
     },
-    "playwright-core@1.56.1": {
-      "integrity": "sha512-hutraynyn31F+Bifme+Ps9Vq59hKuUCz7H1kDOcBs+2oGguKkWTU50bBWrtz34OUWmIwpBTWDxaRPXrIXkgvmQ==",
-      "bin": true
-    },
-    "playwright@1.56.1": {
-      "integrity": "sha512-aFi5B0WovBHTEvpM3DzXTUaeN6eN0qWnTkKx4NQaH4Wvcmc153PdaY2UBdSYKaGYw+UyWXSVyxDUg5DoPEttjw==",
-      "dependencies": [
-        "playwright-core"
-      ],
-      "optionalDependencies": [
-        "fsevents@2.3.2"
-      ],
-      "bin": true
-    },
     "postcss-load-config@3.1.4_postcss@8.5.6": {
       "integrity": "sha512-6DiM4E7v4coTE4uzA8U//WhtPwyhiim3eyjEMFCnUpzbrkK9wJHgKDT2mR+HbtSrd/NubVaYTOpSpjUl8NQeRg==",
       "dependencies": [
@@ -1942,7 +1915,7 @@
         "@rollup/rollup-win32-ia32-msvc",
         "@rollup/rollup-win32-x64-gnu",
         "@rollup/rollup-win32-x64-msvc",
-        "fsevents@2.3.3"
+        "fsevents"
       ],
       "bin": true
     },
@@ -2291,7 +2264,7 @@
         "tinyglobby"
       ],
       "optionalDependencies": [
-        "fsevents@2.3.3"
+        "fsevents"
       ],
       "optionalPeers": [
         "sass-embedded"
@@ -2335,7 +2308,6 @@
       "dependencies": [
         "npm:@eslint/compat@^1.4.1",
         "npm:@eslint/js@^9.39.2",
-        "npm:@playwright/test@1.56.1",
         "npm:@sveltejs/adapter-auto@^6.1.1",
         "npm:@sveltejs/adapter-static@^3.0.10",
         "npm:@sveltejs/kit@^2.49.3",

control/frontend/e2e/basic.test.ts

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

control/frontend/embed.go

@@ -5,9 +5,6 @@ import (
 	"io/fs"
 )
 
-//go:generate deno install
-//go:generate deno task build
-
 //go:embed all:build
 var buildDir embed.FS
 

control/frontend/package.json

@@ -11,14 +11,11 @@
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"lint": "eslint . && prettier --check .",
-		"format": "prettier --write .",
-		"test:e2e": "playwright test",
-		"test": "deno task test:e2e"
+		"format": "prettier --write ."
 	},
 	"devDependencies": {
 		"@eslint/compat": "^1.4.1",
 		"@eslint/js": "^9.39.2",
-		"@playwright/test": "1.56.1",
 		"@sveltejs/adapter-auto": "^6.1.1",
 		"@sveltejs/adapter-static": "^3.0.10",
 		"@sveltejs/kit": "^2.49.3",

control/frontend/playwright.config.ts

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

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

@@ -1,6 +1,7 @@
 <script lang="ts">
 	import { get_shifted_color } from '$lib/ts/stores/ui_behavior';
 	import type { MenuOption } from '$lib/ts/types';
+	import type { Snippet } from 'svelte';
 	import { fade } from 'svelte/transition';
 
 	let {
@@ -26,7 +27,7 @@
 		menu_options?: MenuOption[];
 		menu_class?: string;
 		div_class?: string;
-		children?: any;
+		children: Snippet;
 	} = $props();
 
 	let menu_shown = $state(false);
@@ -158,14 +159,14 @@
 				e.stopPropagation();
 			}}
 		>
-			{#each menu_options as option}
+			{#each menu_options as option, i (i)}
 				<button
 					disabled={option.disabled ?? false}
 					class="bg-white/15 {option.disabled
 						? 'text-stone-500 cursor-not-allowed'
 						: 'hover:bg-white/35 active:bg-white/60 cursor-pointer ' +
 							option.class} rounded-lg p-2 transition-colors duration-200 select-none flex flex-row gap-2 items-center"
-					onclick={async (e) => {
+					onclick={async () => {
 						if (option.on_select) await option.on_select();
 						close_menu();
 					}}

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

@@ -3,11 +3,8 @@
 	import {
 		dnd_flip_duration_ms,
 		get_selectable_color_classes,
-		is_display_drag,
-		is_group_drag
+		is_display_drag
 	} from '$lib/ts/stores/ui_behavior';
-	import { cubicOut } from 'svelte/easing';
-	import { flip } from 'svelte/animate';
 	import DisplayObject from './DisplayObject.svelte';
 	import {
 		all_displays_of_group_selected,
@@ -18,10 +15,9 @@
 	} from '$lib/ts/stores/displays';
 	import DNDGrip from '$lib/components/DNDGrip.svelte';
 	import { fade } from 'svelte/transition';
-	import type { Display, DisplayIdGroup, MenuOption } from '$lib/ts/types';
+	import type { DisplayIdGroup, MenuOption } from '$lib/ts/types';
 	import { selected_display_ids } from '$lib/ts/stores/select';
 	import { liveQuery, type Observable } from 'dexie';
-	import { onMount } from 'svelte';
 	import { get_uuid } from '$lib/ts/utils';
 
 	let {
@@ -30,7 +26,7 @@
 		close_pinned_display
 	}: {
 		display_id_group: DisplayIdGroup;
-		get_display_menu_options: (display_id: string) => MenuOption[];
+		get_display_menu_options: (display_id: string, display_version: string|undefined) => MenuOption[];
 		close_pinned_display: () => void;
 	} = $props();
 

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

@@ -8,7 +8,7 @@
 	import DNDGrip from '$lib/components/DNDGrip.svelte';
 	import { Menu, Pin, PinOff, VideoOff } from 'lucide-svelte';
 	import OnlineState from './OnlineState.svelte';
-	import type { Display, DisplayIdObject, MenuOption } from '$lib/ts/types';
+	import type { DisplayIdObject, MenuOption } from '$lib/ts/types';
 	import { is_selected, select, selected_display_ids } from '$lib/ts/stores/select';
 	import { get_display_by_id, screenshot_loop } from '$lib/ts/stores/displays';
 	import { change_file_path, current_file_path } from '$lib/ts/stores/files';
@@ -20,7 +20,7 @@
 		close_pinned_display
 	}: {
 		display_id_object: DisplayIdObject;
-		get_display_menu_options: (display_id: string) => MenuOption[];
+		get_display_menu_options: (display_id: string, display_version: string|undefined) => MenuOption[];
 		close_pinned_display: () => void;
 	} = $props();
 
@@ -136,7 +136,7 @@
 				click_function={(e) => {
 					e.stopPropagation();
 				}}
-				menu_options={get_display_menu_options(display_id_object.id)}
+				menu_options={get_display_menu_options(display_id_object.id, $display?.version)}
 			>
 				<Menu />
 			</Button>

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

@@ -0,0 +1,176 @@
+<script lang="ts">
+	import { add_upload } from '$lib/ts/file_transfer_handler';
+	import { selected_online_display_ids } from '$lib/ts/stores/displays';
+	import { current_file_path } from '$lib/ts/stores/files';
+	import HighlightedText from './HighlightedText.svelte';
+
+	let { className } = $props();
+
+	let drop_zone: HTMLDivElement | undefined;
+
+	let is_dragging = $state(false);
+	let is_dragging_over_drop_zone = $state(false);
+	let is_dragging_multiple_files = $state(false);
+
+	let drag_counter = 0;
+
+	function contains_files(event: DragEvent): boolean {
+		return Array.from(event.dataTransfer?.types ?? []).includes('Files');
+	}
+
+	function reset_drag_vars(): void {
+		drag_counter = 0;
+		is_dragging = false;
+		is_dragging_over_drop_zone = false;
+		is_dragging_multiple_files = false;
+	}
+
+	function is_inside_drop_zone(event: DragEvent): boolean {
+		if (!drop_zone) return false;
+
+		const rect = drop_zone.getBoundingClientRect();
+
+		return (
+			event.clientX >= rect.left &&
+			event.clientX <= rect.right &&
+			event.clientY >= rect.top &&
+			event.clientY <= rect.bottom
+		);
+	}
+
+	function handle_window_drag_enter(event: DragEvent): void {
+		if (!contains_files(event)) return;
+
+		event.preventDefault();
+
+		drag_counter += 1;
+		is_dragging = true;
+		is_dragging_multiple_files =
+			(event.dataTransfer?.items.length ?? 0) > 1;
+
+		if (event.dataTransfer) {
+			event.dataTransfer.dropEffect = 'copy';
+		}
+	}
+
+	function handle_window_drag_over(event: DragEvent): void {
+		if (!contains_files(event)) return;
+
+		event.preventDefault();
+
+		is_dragging = true;
+		is_dragging_multiple_files =
+			(event.dataTransfer?.items.length ?? 0) > 1;
+
+		is_dragging_over_drop_zone =
+			$selected_online_display_ids.length > 0 &&
+			is_inside_drop_zone(event);
+
+		if (event.dataTransfer) {
+			event.dataTransfer.dropEffect = 'copy';
+		}
+	}
+
+	function handle_window_drag_leave(event: DragEvent): void {
+		if (!contains_files(event) && !is_dragging) return;
+
+		drag_counter = Math.max(0, drag_counter - 1);
+
+		if (drag_counter === 0) {
+			reset_drag_vars();
+		}
+	}
+
+	function handle_window_drop_capture(event: DragEvent): void {
+		if (!contains_files(event)) return;
+		event.preventDefault();
+	}
+
+	function handle_window_drop(event: DragEvent): void {
+		if (!contains_files(event)) return;
+
+		event.preventDefault();
+		reset_drag_vars();
+	}
+
+	async function handle_drop_zone_drop(
+		event: DragEvent
+	): Promise<void> {
+		if (!contains_files(event)) return;
+
+		event.preventDefault();
+		event.stopPropagation();
+
+		const may_import =
+			$selected_online_display_ids.length > 0 &&
+			is_inside_drop_zone(event);
+
+		const items = Array.from(event.dataTransfer?.items ?? []);
+
+		reset_drag_vars();
+
+		if (!may_import) return;
+
+		const transfer = new DataTransfer();
+
+		for (const item of items) {
+			if (item.kind !== 'file') continue;
+
+			const file = item.getAsFile();
+			const entry = item.webkitGetAsEntry?.();
+
+			if (file && (!entry || entry.isFile)) {
+				transfer.items.add(file);
+			}
+		}
+
+		if (transfer.files.length === 0) return;
+
+		await add_upload(
+			transfer.files,
+			$selected_online_display_ids,
+			$current_file_path
+		);
+	}
+</script>
+
+<svelte:window
+	ondragenter={handle_window_drag_enter}
+	ondragover={handle_window_drag_over}
+	ondragleave={handle_window_drag_leave}
+	ondrop={handle_window_drop}
+	ondropcapture={handle_window_drop_capture}
+/>
+
+<div
+	class="fixed {is_dragging
+		? 'bg-black/50 opacity-100'
+		: 'opacity-0'} pointer-events-none p-10 z-1000 inset-0 transition-all duration-100 flex items-center justify-center text-xl text-white font-bold select-none"
+>
+	{$selected_online_display_ids.length === 0
+		? 'Für das Hochladen von Dateien müssen erreichbare Displays ausgewählt werden!'
+		: ''}
+</div>
+
+<div
+	bind:this={drop_zone}
+	aria-hidden="true"
+	ondrop={handle_drop_zone_drop}
+	class="{className} absolute p-6 inset-0 flex z-1001 justify-center items-center transition-all duration-200 {$selected_online_display_ids.length >
+		0 && is_dragging
+		? 'opacity-100'
+		: 'opacity-0 pointer-events-none'} {is_dragging_over_drop_zone
+		? 'bg-stone-500'
+		: 'bg-stone-700'}"
+>
+	<p class="text-lg pointer-events-none">
+		Hier {is_dragging_multiple_files ? 'Dateien' : 'Datei'} ablegen, um sie auf {$selected_online_display_ids.length ===
+		1
+			? 'dem ausgewählten Display'
+			: 'den ausgewählten Displays'} in den Pfad <HighlightedText
+			className="transition-colors duration-200"
+			bg={is_dragging_over_drop_zone ? 'bg-stone-550' : 'bg-stone-750'}
+			>{$current_file_path}</HighlightedText
+		> hochzuladen
+	</p>
+</div>

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

@@ -1,11 +1,13 @@
 <script lang="ts">
+	import type { Snippet } from "svelte";
+
 	let {
 		children,
 		bg = 'bg-stone-750',
 		fg = 'text-stone-200',
 		className = ''
 	}: {
-		children: any;
+		children: Snippet;
 		bg?: string;
 		fg?: string;
 		className?: string;

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

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { ArrowRight, Ban, FileIcon, Folder, Play } from 'lucide-svelte';
+	import { ArrowRight, Ban, FileIcon, Folder, Play, TriangleAlert } from 'lucide-svelte';
 	import {
 		current_height,
 		get_selectable_color_classes,
@@ -10,7 +10,6 @@
 		supported_file_type_icon,
 		type Inode,
 		get_file_primary_key,
-		type FileOnDisplay,
 		type FileTransferTask,
 		is_folder
 	} from '$lib/ts/types';
@@ -18,7 +17,6 @@
 	import {
 		is_selected,
 		select,
-		selected_display_ids,
 		selected_file_ids
 	} from '$lib/ts/stores/select';
 	import {
@@ -31,11 +29,13 @@
 	import RefreshPlay from '../svgs/RefreshPlay.svelte';
 	import { get_file_size_display_string, get_file_type } from '$lib/ts/utils';
 	import { open_file } from '$lib/ts/api_handler';
-	import { get_display_by_id, run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import {
+		run_on_all_selected_displays,
+		selected_online_display_ids
+	} from '$lib/ts/stores/displays';
 	import { get_thumbnail_url } from '$lib/ts/stores/thumbnails';
 	import { liveQuery, type Observable } from 'dexie';
-	import { db } from '$lib/ts/database';
-	import { file_transfer_tasks } from '$lib/ts/file_transfer_handler';
+	import { add_sync_recursively, file_transfer_tasks } from '$lib/ts/file_transfer_handler';
 
 	let { file, not_interactable = false }: { file: Inode; not_interactable?: boolean } = $props();
 
@@ -45,18 +45,23 @@
 		| Observable<{ missing: string[]; colliding: string[] }>
 		| undefined = $state();
 	$effect(() => {
-		const s = $selected_file_ids;
-		missing_colliding_displays_ids = liveQuery(() => get_missing_colliding_display_ids(file, s));
+		const f = file;
+		const s = $selected_online_display_ids;
+		missing_colliding_displays_ids = liveQuery(() => get_missing_colliding_display_ids(f, s));
 	});
 
+	let colliding_warning: boolean = $derived(
+		!!$missing_colliding_displays_ids && $missing_colliding_displays_ids.colliding.length !== 0
+	);
+
 	let file_size: Observable<number> | undefined = $state();
 	$effect(() => {
 		const f = file;
 		file_size = liveQuery(() => get_size_recursively(f));
 	});
 
-	let file_transfer_task: FileTransferTask | null = $derived(
-		$file_transfer_tasks.hasOwnProperty(file_primary_key)
+	let file_transfer_task_list: FileTransferTask[] | null = $derived(
+		Object.hasOwn($file_transfer_tasks, file_primary_key)
 			? $file_transfer_tasks[file_primary_key]
 			: null
 	);
@@ -64,7 +69,7 @@
 	let loading_finished = $state(false);
 	let previous_loading_state = $state(false);
 	$effect(() => {
-		const ftt = file_transfer_task;
+		const ftt = file_transfer_task_list;
 		if (previous_loading_state && !ftt) {
 			loading_finished = true;
 			setTimeout(() => (loading_finished = false), 200);
@@ -136,7 +141,7 @@
 
 	function get_grayed_out_text_color_strings(is_selected: boolean): string {
 		if (not_interactable) return 'text-stone-400';
-		if (!!file_transfer_task) return 'text-white/20';
+		if (file_transfer_task_list) return 'text-white/20';
 		const color = is_selected ? 'text-stone-600' : 'text-stone-400';
 		const factor = is_selected ? -1 : 1;
 		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
@@ -144,14 +149,14 @@
 
 	function get_grayed_out_border_color_strings(is_selected: boolean): string {
 		if (not_interactable) return 'border-stone-550';
-		if (!!file_transfer_task) return 'border-white/10';
+		if (file_transfer_task_list) return 'border-white/10';
 		const color = is_selected ? 'border-stone-450' : 'border-stone-550';
 		const factor = is_selected ? 1 : 1;
 		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
 	}
 
 	function onclick(e: Event) {
-		if (not_interactable || !!file_transfer_task) return;
+		if (not_interactable || file_transfer_task_list) return;
 		select(selected_file_ids, file_primary_key, 'toggle');
 		e.stopPropagation();
 	}
@@ -159,6 +164,11 @@
 	async function open() {
 		if (file_is_folder) {
 			await change_file_path($current_file_path + file.name + '/');
+		} else if (
+			!!$missing_colliding_displays_ids &&
+			$missing_colliding_displays_ids.missing.length !== 0
+		) {
+			await add_sync_recursively(get_file_primary_key(file), $selected_online_display_ids, true);
 		} else {
 			const path_to_file = $current_file_path + file.name;
 			await run_on_all_selected_displays((d) => open_file(d.ip, path_to_file));
@@ -170,7 +180,7 @@
 
 		if (loading_finished) {
 			out += 'bg-stone-500 text-white/30';
-		} else if (!!file_transfer_task) {
+		} else if (file_transfer_task_list) {
 			out += 'bg-stone-700 text-white/30';
 		} else {
 			out += get_selectable_color_classes(
@@ -186,7 +196,7 @@
 
 		if (not_interactable) {
 			out += ' rounded-lg';
-		} else if (!!file_transfer_task) {
+		} else if (file_transfer_task_list) {
 			out += ' rounded-r-lg';
 		} else {
 			out += ' rounded-r-lg cursor-pointer';
@@ -195,7 +205,16 @@
 		return out;
 	}
 
-	function get_total_percentage(ftt: FileTransferTask): number {
+	function get_total_percentage(ftt_list: FileTransferTask[]): number {
+		let percentage_sum = 0;
+		for (const ftt of ftt_list) {
+			percentage_sum += get_percentage(ftt);
+		}
+		return Math.round(percentage_sum / ftt_list.length);
+	}
+
+
+	function get_percentage(ftt: FileTransferTask): number {
 		let total_percentage: number;
 		if (ftt.data.type === 'upload') {
 			total_percentage = ftt.loading_data.percentage;
@@ -215,7 +234,7 @@
 		if (is_folder(file)) {
 			const folder_elements = await get_folder_elements(
 				file.path + file.name + '/',
-				$selected_display_ids
+				$selected_online_display_ids
 			);
 			let out: number = 0;
 			for (const el of folder_elements) {
@@ -237,33 +256,43 @@
 	{#if !not_interactable}
 		<div class="h-{$current_height.file} aspect-square max-w-15 flex">
 			<Button
-				disabled={!file_is_folder && get_file_type(file) === null}
-				title={!file_is_folder && get_file_type(file) === null ? 'Dateityp nicht unterstützt' : ''}
+				disabled={(!file_is_folder && get_file_type(file) === null) || colliding_warning}
+				title={!file_is_folder && get_file_type(file) === null
+					? 'Dateityp nicht unterstützt'
+					: colliding_warning
+						? 'Dateien kollidieren auf verschiedenen Bildschirmen'
+						: ''}
 				className="flex rounded-l-lg rounded-r-none {file_is_folder
 					? 'text-stone-450'
 					: 'text-stone-800'} w-full"
 				div_class="w-full"
-				bg={get_selectable_color_classes(
-					!file_is_folder && get_file_type(file) !== null,
-					{
-						bg: true
-					},
-					-50
-				)}
-				hover_bg={get_selectable_color_classes(
-					!file_is_folder,
-					{
-						bg: true
-					},
-					50
-				)}
-				active_bg={get_selectable_color_classes(
-					!file_is_folder,
-					{
-						bg: true
-					},
-					100
-				)}
+				bg={colliding_warning
+					? 'bg-red-400'
+					: get_selectable_color_classes(
+							!file_is_folder && get_file_type(file) !== null,
+							{
+								bg: true
+							},
+							-50
+						)}
+				hover_bg={colliding_warning
+					? 'bg-red-500'
+					: get_selectable_color_classes(
+							!file_is_folder,
+							{
+								bg: true
+							},
+							50
+						)}
+				active_bg={colliding_warning
+					? 'bg-red-500'
+					: get_selectable_color_classes(
+							!file_is_folder,
+							{
+								bg: true
+							},
+							100
+						)}
 				click_function={(e) => {
 					open();
 					e.stopPropagation();
@@ -271,12 +300,14 @@
 			>
 				{#if file_is_folder}
 					<ArrowRight class="size-full" strokeWidth="3" />
-				{:else if $missing_colliding_displays_ids && $missing_colliding_displays_ids.missing.length !== 0}
-					<RefreshPlay className="size-full" />
-				{:else if get_file_type(file) !== null}
-					<Play class="size-full" strokeWidth="3" />
-				{:else}
+				{:else if get_file_type(file) === null}
 					<Ban class="size-full" strokeWidth="3" />
+				{:else if colliding_warning}
+					<TriangleAlert class="size-full" strokeWidth="3" />
+				{:else if !!$missing_colliding_displays_ids && $missing_colliding_displays_ids.missing.length !== 0}
+					<RefreshPlay className="size-full" />
+				{:else}
+					<Play class="size-full" strokeWidth="3" />
 				{/if}
 			</Button>
 		</div>
@@ -290,10 +321,10 @@
 		{onclick}
 		class="{get_main_classes()} relative transition-colors duration-200 gap-4 flex flex-row justify-between group w-full min-w-0"
 	>
-		{#if !!file_transfer_task}
+		{#if !!file_transfer_task_list}
 			<div
 				class="absolute pointer-events-none inset-y-0 left-0 transition-[width] duration-400 bg-stone-600 rounded-r-lg"
-				style={`width: ${get_total_percentage(file_transfer_task)}%;`}
+				style={`width: ${get_total_percentage(file_transfer_task_list)}%;`}
 			></div>
 		{/if}
 		<div class="flex flex-row gap-2 min-w-0 w-full z-10">
@@ -325,33 +356,6 @@
 				is_selected(file_primary_key, $selected_file_ids)
 			)} duration-200 transition-colors"
 		>
-			<!-- {#if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[1].length !== 0}
-				<Button
-					className="h-8 aspect-square transition-colors duration-200 !p-1.5 text-stone-100"
-					bg="bg-red-500"
-					click_function={(e) => {
-						e.stopPropagation();
-					}}
-				>
-					<TriangleAlert class="size-full" />
-				</Button>
-			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
-				<Button
-					className="h-8 aspect-square transition-colors duration-200 !p-1.5"
-					bg="bg-transparent"
-					hover_bg={get_selectable_color_classes(false, {
-						bg: true
-					})}
-					active_bg={get_selectable_color_classes(false, {
-						bg: true
-					})}
-					click_function={(e) => {
-						e.stopPropagation();
-					}}
-				>
-					<RefreshCcwDot class="size-full" />
-				</Button>
-			{/if} -->
 			<div
 				class="w-14 content-center text-center select-none text-xs whitespace-nowrap"
 				title={get_created_info($date_mapping, true)}

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

@@ -1,6 +1,6 @@
 <script lang="ts">
 	import type { NumberSetting } from '$lib/ts/types';
-	import { ChevronDown, ChevronUp, Minus, Plus } from 'lucide-svelte';
+	import { ChevronDown, ChevronUp } from 'lucide-svelte';
 	import Button from './Button.svelte';
 
 	let {

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

@@ -36,7 +36,7 @@
 
 {#if content.open}
 	<div
-		class="absolute inset-0 backdrop-blur flex justify-center items-center z-50 {className}"
+		class="popup absolute inset-0 backdrop-blur flex justify-center items-center z-50 {className}"
 		transition:fade={{ duration: 100 }}
 	>
 		<div

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

@@ -51,6 +51,17 @@ export async function show_html(ip: string, html: string): Promise<void> {
 	await request_display(ip, '/showHTML', options);
 }
 
+export async function open_website(ip: string, url: string): Promise<void> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			url: url
+		})
+	};
+	await request_display(ip, '/openWebsite', options);
+}
+
 export async function get_file_data(
 	ip: string,
 	path: string
@@ -73,9 +84,10 @@ export async function get_file_data(
     `;
 	const raw_response = await run_shell_command(ip, command);
 	if (!raw_response.ok || !raw_response.json) return null;
+	if (!raw_response.ok) return null;
+	if (handle_shell_error(ip, raw_response, command, true)) 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;
 	if (json_response.stdout.trim() === '') return null;
 
 	const response: FileInfo[] = json_response.stdout
@@ -105,11 +117,10 @@ export async function get_file_data(
 export async function get_file_tree_data(ip: string, path: string): Promise<TreeElement[] | null> {
 	const command = `cd ".${path}" && tree -Js`;
 	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok) return null;
+	if (handle_shell_error(ip, raw_response, command, true)) return null;
 
-	if (!raw_response.ok || !raw_response.json) return null;
 	const json_response = raw_response.json as ShellCommandResponse;
-	if (handle_shell_error(ip, json_response, command, true)) return null;
-
 	const tree_element: TreeElement | null = JSON.parse(json_response.stdout.trim())[0] || null;
 
 	return tree_element?.contents || null;
@@ -119,9 +130,8 @@ export async function create_path(ip: string, path: string): Promise<void> {
 	const command = `mkdir -p ".${path}"`;
 
 	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);
+	if (!raw_response.ok) return;
+	handle_shell_error(ip, raw_response, command, true);
 }
 
 export async function rename_file(
@@ -133,9 +143,8 @@ export async function rename_file(
 	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);
+	if (!raw_response.ok) return;
+	handle_shell_error(ip, raw_response, command, true);
 }
 
 export async function delete_files(
@@ -148,9 +157,8 @@ export async function delete_files(
 		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);
+	if (!raw_response.ok) return;
+	handle_shell_error(ip, raw_response, command, true);
 }
 
 export async function show_blackscreen(ip: string): Promise<void> {
@@ -175,15 +183,21 @@ export async function get_thumbnail_blob(ip: string, path_to_file: string): Prom
 	return raw_response.blob;
 }
 
-export async function ping_ip(ip: string): Promise<DisplayStatus> {
+export async function ping_ip(ip: string): Promise<{ status: DisplayStatus; version?: string }> {
 	const raw_response = await request_control(`/ping?ip=${ip}`, { method: 'GET' });
-	if (!raw_response.ok || !raw_response.json) return null;
+	if (!raw_response.ok || !raw_response.json) return { status: null };
 
-	const status = raw_response.json.status;
-	if (typeof status === 'string') {
-		return to_display_status(status);
+	const raw_status = raw_response.json.status;
+	if (typeof raw_status === 'string') {
+		const status = to_display_status(raw_status);
+		const version = raw_response.json.version;
+		if (typeof version === 'string') {
+			return { status, version };
+		} else {
+			return { status };
+		}
 	}
-	return null;
+	return { status: null };
 }
 
 async function request_display(
@@ -227,9 +241,6 @@ async function request(
 ): Promise<RequestResponse> {
 	try {
 		const cache_buster = `${url.includes('?') ? '&' : '?'}=${Date.now()}`;
-		if (dev) {
-			console.debug('Sending request: ', url + cache_buster, 'with', options.body ?? 'none');
-		}
 		const response = await fetch(url + cache_buster, options);
 		if (response.ok || supress_error_handling_http_codes.includes(response.status)) {
 			const contentType = response.headers.get('content-type') || '';
@@ -240,9 +251,6 @@ async function request(
 			} else {
 				const json: Record<string, unknown> = await response.json();
 				request_response = { ok: response.ok, http_code: response.status, json: json };
-				if (dev) {
-					console.debug(request_response);
-				}
 			}
 			return request_response;
 		}
@@ -277,11 +285,21 @@ async function request(
 
 function handle_shell_error(
 	ip: string,
-	shell_response: ShellCommandResponse,
+	response: RequestResponse,
 	shell_command: string,
-	command_includs_cd: boolean
+	command_includs_cd: boolean,
+	response_type: 'json' | 'blob' = 'json'
 ): boolean {
-	if (shell_response.exitCode !== 0) {
+	if (
+		(response_type === 'json' && !response.json) ||
+		(response_type === 'blob' && !response.blob)
+	) {
+		const error_string = `Did not receive ${response_type}: ${JSON.stringify(response)}`;
+		console.error(error_string);
+		notifications.push('error', `Fehler in API-Shell`, `${ip}\n${shell_command}\n${error_string}`);
+		return true;
+	} else if (response.json && response.json.exitCode !== 0) {
+		const shell_response = response.json as ShellCommandResponse;
 		if (
 			command_includs_cd &&
 			shell_response.stderr &&
@@ -314,8 +332,12 @@ async function run_shell_command(ip: string, command: string): Promise<RequestRe
 	return await request_display(ip, '/shellCommand', options);
 }
 
-export async function shutdown(ip: string): Promise<RequestResponse> {
-	return await run_shell_command(ip, 'xfce4-session-logout --halt');
+export async function shutdown(ip: string): Promise<boolean> {
+	const command = 'xfce4-session-logout --halt';
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok) return false;
+	if (handle_shell_error(ip, raw_response, command, true)) return false;
+	return true;
 }
 
 export async function startup(mac: string): Promise<RequestResponse> {

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

@@ -1,6 +1,6 @@
 import { get, writable, type Writable } from 'svelte/store';
 import { db } from './database';
-import { get_display_by_id } from './stores/displays';
+import { get_display_by_id, run_on_all_selected_displays } from './stores/displays';
 import {
 	create_path_on_all_selected_displays,
 	get_folder_elements,
@@ -20,6 +20,7 @@ import {
 	type ShortDisplay
 } from './types';
 import { get_sanitized_file_url, get_uuid, make_valid_name } from './utils';
+import { open_file } from './api_handler';
 
 const START_LOADING_DATA = {
 	percentage: 0,
@@ -27,12 +28,23 @@ const START_LOADING_DATA = {
 	seconds_until_finish: -1
 };
 
-export const file_transfer_tasks: Writable<Record<string, FileTransferTask>> = writable<
-	Record<string, FileTransferTask>
+export const file_transfer_tasks: Writable<Record<string, FileTransferTask[]>> = writable<
+	Record<string, FileTransferTask[]>
 >({});
 
 let is_processing: boolean = false;
 
+function add_file_transfer_task(file_primary_key: string, new_task: FileTransferTask) {
+	file_transfer_tasks.update((tasks) => {
+		if (Object.hasOwn(tasks, file_primary_key)) {
+			tasks[file_primary_key].push(new_task);
+			return tasks;
+		} else {
+			return { ...tasks, [file_primary_key]: [new_task] };
+		}
+	});
+}
+
 export async function add_upload(
 	file_list: FileList,
 	selected_display_ids: string[],
@@ -58,7 +70,7 @@ export async function add_upload(
 		};
 		const file_primary_key = get_file_primary_key(db_file);
 
-		if (Object.prototype.hasOwnProperty.call(file_transfer_tasks, file_primary_key))
+		if (Object.hasOwn(file_transfer_tasks, file_primary_key))
 			return show_already_in_tasks_error(db_file, 'upload'); // file is already in task
 
 		await db.files.put(db_file);
@@ -88,10 +100,7 @@ export async function add_upload(
 				loading_data: START_LOADING_DATA,
 				bytes_total: file.size
 			};
-			file_transfer_tasks.update((tasks) => ({
-				...tasks,
-				[file_primary_key]: new_task
-			}));
+			add_file_transfer_task(file_primary_key, new_task);
 		});
 
 		await Promise.all(upload_task_promises);
@@ -102,7 +111,8 @@ export async function add_upload(
 
 export async function add_sync_recursively(
 	selected_file_id: string,
-	selected_display_ids: string[]
+	selected_display_ids: string[],
+	open_file_afterwards: boolean = false
 ) {
 	const file_data = await find_file_data_on_active_selected_display(
 		selected_file_id,
@@ -134,7 +144,8 @@ export async function add_sync_recursively(
 			destination_display_data: file_data.short_displays_without_file.map((display) => ({
 				display,
 				loading_data: START_LOADING_DATA
-			}))
+			})),
+			open_file_afterwards_on_display_ids: open_file_afterwards ? selected_display_ids : []
 		},
 		display: file_data.short_display_with_file,
 		path: file_data.file.path,
@@ -143,10 +154,7 @@ export async function add_sync_recursively(
 		bytes_total: file_data.file.size
 	};
 
-	file_transfer_tasks.update((tasks) => ({
-		...tasks,
-		[selected_file_id]: new_task
-	}));
+	add_file_transfer_task(selected_file_id, new_task);
 
 	const display_ids_without_file = file_data.short_displays_without_file.map((d) => d.id);
 	const new_fods: FileOnDisplay[] = display_ids_without_file.map((display_id) => ({
@@ -227,15 +235,19 @@ function generate_valid_file_name(original_file_name: string, used_file_names: s
 	return name;
 }
 
-async function upload(file_primary_key: string, task: FileTransferTask): Promise<void> {
+async function upload(
+	file_primary_key: string,
+	task: FileTransferTask,
+	list_index: number
+): Promise<void> {
 	const task_data = task.data;
 	if (task_data.type !== 'upload' || !task_data.file)
 		return console.warn('Task cancelled: wrong task type:', task);
 
-	await upload_file_via_xhr(file_primary_key, task, task_data.file);
+	await upload_file_via_xhr(file_primary_key, list_index, task, task_data.file);
 }
 
-export async function sync(file_primary_key: string, task: FileTransferTask) {
+export async function sync(file_primary_key: string, task: FileTransferTask, list_index: number) {
 	if (task.data.type !== 'sync') return console.warn('Task cancelled: wrong task type:', task);
 
 	const hasOPFS =
@@ -270,21 +282,37 @@ export async function sync(file_primary_key: string, task: FileTransferTask) {
 			if (done) break;
 			if (!value) continue;
 
-			update_current_loading_data(file_primary_key, value.byteLength, start_time);
+			update_current_loading_data(file_primary_key, list_index, value.byteLength, start_time);
 			await writable.write(value);
 		}
 		await writable.close();
 
-		finish_loading_data(file_primary_key);
+		finish_loading_data(file_primary_key, list_index);
 
 		// 02 - send downloaded file to every destination_display
 		const temp_file = await file_handle.getFile();
 
 		for (const current_short_display of task.data.destination_display_data) {
-			await upload_file_via_xhr(file_primary_key, task, temp_file, current_short_display.display);
+			await upload_file_via_xhr(
+				file_primary_key,
+				list_index,
+				task,
+				temp_file,
+				current_short_display.display
+			);
 		}
 
 		await dir.removeEntry(temp_name);
+
+		// open file, if required
+		if (task.data.open_file_afterwards_on_display_ids.length !== 0) {
+			const path_to_file = task.path + task.file_name;
+			await run_on_all_selected_displays(
+				(d) => open_file(d.ip, path_to_file),
+				true,
+				task.data.open_file_afterwards_on_display_ids
+			);
+		}
 	} catch (e) {
 		show_general_error(file_primary_key, task, String(e));
 	}
@@ -295,8 +323,7 @@ export async function download_file(selected_file_id: string, selected_display_i
 		selected_file_id,
 		selected_display_ids
 	);
-	if (!file_data || is_folder(file_data.file))
-		return console.warn('Download cancelled: is folder');
+	if (!file_data || is_folder(file_data.file)) return console.warn('Download cancelled: is folder');
 
 	try {
 		const url = `http://${file_data.short_display_with_file.ip}:1323/api${get_sanitized_file_url(file_data.file.path + file_data.file.name)}`;
@@ -328,24 +355,37 @@ async function start_task_loop() {
 	while (Object.keys(get(file_transfer_tasks)).length > 0) {
 		const tasks = get(file_transfer_tasks);
 		const current_file_id = Object.keys(tasks)[0];
-		const current_task = tasks[current_file_id];
-		if (current_task.data.type === 'upload') {
-			await upload(current_file_id, current_task);
-		} else if (current_task.data.type === 'sync') {
-			await sync(current_file_id, current_task);
-		}
+		const current_task_list = tasks[current_file_id];
 
-		file_transfer_tasks.update((all_tasks) => {
-			const next = { ...all_tasks };
-			delete next[current_file_id];
-			return next;
-		});
+		for (const [list_index, current_task] of current_task_list.entries()) {
+			if (current_task.data.type === 'upload') {
+				await upload(current_file_id, current_task, list_index);
+			} else if (current_task.data.type === 'sync') {
+				await sync(current_file_id, current_task, list_index);
+			}
+			delete_current_task_if_needed(current_file_id);
+		}
 	}
 	is_processing = false;
 }
 
+function delete_current_task_if_needed(current_file_id: string) {
+	file_transfer_tasks.update((all_tasks) => {
+		const next = { ...all_tasks };
+		const current_tasks = next[current_file_id];
+		if (current_tasks.length !== 1) {
+			if (current_tasks.find((t) => t.loading_data.percentage !== 100)) {
+				return next; // not all tasks are finished -> do nothing
+			}
+		}
+		delete next[current_file_id];
+		return next;
+	});
+}
+
 async function upload_file_via_xhr(
 	file_primary_key: string,
+	list_index: number,
 	task: FileTransferTask,
 	current_file: File,
 	destination_short_display: ShortDisplay | null = null
@@ -365,6 +405,7 @@ async function upload_file_via_xhr(
 			const apply = async () => {
 				update_current_loading_data(
 					file_primary_key,
+					list_index,
 					e.loaded,
 					start_time,
 					destination_short_display ? destination_short_display.id : null
@@ -384,6 +425,7 @@ async function upload_file_via_xhr(
 					// set loading_data to 100%
 					finish_loading_data(
 						file_primary_key,
+						list_index,
 						destination_short_display ? destination_short_display.id : null
 					);
 					// Generate Thumbnail if not done already
@@ -408,38 +450,43 @@ async function upload_file_via_xhr(
 
 function finish_loading_data(
 	file_primary_key: string,
+	list_index: number,
 	destination_display_id: string | null = null
 ) {
 	file_transfer_tasks.update((tasks) => {
-		const task = tasks[file_primary_key];
 		const current_loading_data = {
 			percentage: 100,
 			bytes_per_second: 0,
 			seconds_until_finish: 0
 		};
+		const new_task_list = tasks[file_primary_key].map((task, index) =>
+			index === list_index
+				? get_updated_task(current_loading_data, destination_display_id, task)
+				: task
+		);
 
 		return {
 			...tasks,
-			[file_primary_key]: get_updated_task(current_loading_data, destination_display_id, task)
+			[file_primary_key]: new_task_list
 		};
 	});
 }
 
 function update_current_loading_data(
 	file_primary_key: string,
+	list_index: number,
 	current_bytes: number,
 	start_time: Date,
 	destination_display_id: string | null = null
 ) {
 	file_transfer_tasks.update((tasks) => {
-		const task = tasks[file_primary_key];
+		const task = tasks[file_primary_key][list_index];
 		if (!task) return tasks;
 
 		const current_percentage = Math.min(
 			task.bytes_total > 0 ? Math.round((current_bytes / task.bytes_total) * 100) : 1,
 			99
 		);
-
 		const prognosed_data = get_prognosed_data(start_time, current_bytes, task.bytes_total);
 
 		const current_loading_data: FileLoadingData = {
@@ -448,14 +495,24 @@ function update_current_loading_data(
 			seconds_until_finish: prognosed_data.seconds_until_finish
 		};
 
+		const new_task_list = tasks[file_primary_key].map((task, index) =>
+			index === list_index
+				? get_updated_task(current_loading_data, destination_display_id, task)
+				: task
+		);
+
 		return {
 			...tasks,
-			[file_primary_key]: get_updated_task(current_loading_data, destination_display_id, task)
+			[file_primary_key]: new_task_list
 		};
 	});
 }
 
-function get_updated_task(current_loading_data: FileLoadingData, destination_display_id: string | null, task: FileTransferTask): FileTransferTask {
+function get_updated_task(
+	current_loading_data: FileLoadingData,
+	destination_display_id: string | null,
+	task: FileTransferTask
+): FileTransferTask {
 	if (destination_display_id && task.data.type === 'sync') {
 		const updatedDestinations = task.data.destination_display_data.map((dd) =>
 			dd.display.id === destination_display_id ? { ...dd, loading_data: current_loading_data } : dd

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

@@ -1,8 +1,8 @@
 import { screenshot_loop } from './stores/displays';
 import { ping_ip } from './api_handler';
 import type { Display, DisplayStatus } from './types';
-import { update_folder_elements_recursively } from './stores/files';
 import { db } from './database';
+import { update_changed_directories } from './stores/files';
 
 const update_display_status_interval_seconds = 20;
 const update_display_loading_status_interval_seconds = 2;
@@ -10,8 +10,6 @@ const update_display_loading_status_interval_seconds = 2;
 const loading_display_ids: string[] = [];
 
 export async function on_app_start() {
-	await db.files.clear();
-	await db.files_on_display.clear();
 	await db.displays
 		.toCollection()
 		.modify({ status: null, preview: { currently_updating: false, url: null } });
@@ -40,22 +38,28 @@ async function update_all_display_status(only_loading_displays: boolean) {
 }
 
 export async function update_display_status(display: Display): Promise<DisplayStatus> {
-	const new_status = await ping_ip(display.ip);
-	if (new_status === null && display.status !== null) return null;
-	if (new_status !== display.status) {
+	const resp = await ping_ip(display.ip);
+	if (resp.version && display.version !== resp.version) {
+		display.version = resp.version;
+		await db.displays.put(display); // save
+	}
+	if (resp.status === null && display.status !== null) return null;
+	if (resp.status !== display.status) {
+		let run_on_display_start = false;
 		// status change
-		if (new_status === 'app_offline') {
+		if (resp.status === 'app_offline') {
 			loading_display_ids.push(display.id);
 		} else {
 			remove_display_from_loading_displays(display.id);
-			if (new_status === 'app_online') {
-				on_display_start(display);
+			if (resp.status === 'app_online') {
+				run_on_display_start = true;
 			}
 		}
-		display.status = new_status;
+		display.status = resp.status;
 		await db.displays.put(display); // save
+		if (run_on_display_start) await on_display_start(display);
 	}
-	return new_status;
+	return resp.status;
 }
 
 export function remove_display_from_loading_displays(display_id: string) {
@@ -66,6 +70,6 @@ export function remove_display_from_loading_displays(display_id: string) {
 }
 
 async function on_display_start(display: Display) {
-	await update_folder_elements_recursively(display, '/');
+	await update_changed_directories(display);
 	screenshot_loop(display.id);
 }

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

@@ -22,8 +22,12 @@ export const online_displays_sub = liveQuery(() =>
 	db.displays.where('status').equals('app_online').toArray()
 ).subscribe((value) => {
 	online_displays.set(value);
+	const current_online_display_ids = value.map((d) => d.id);
+	selected_online_display_ids.set(get(selected_display_ids).filter((id) => current_online_display_ids.includes(id)));
 });
 
+export const selected_online_display_ids: Writable<string[]> = writable<string[]>([]);
+
 export const local_displays: Writable<DisplayIdGroup[]> = writable<DisplayIdGroup[]>([]);
 
 export async function is_display_name_taken(name: string): Promise<boolean> {
@@ -193,17 +197,18 @@ export function screenshot_loop(display_id: string) {
 export async function run_on_all_selected_displays(
 	run_function: (display: Display) => void | Promise<void>,
 	update_screenshot_afterwards: boolean = true,
-	ignore_offline: boolean = true
+	display_ids: string[] | null = null
 ) {
+	if (!display_ids) display_ids = get(selected_online_display_ids);
 	const maybe_displays: (Display | null)[] = await Promise.all(
 		// fails when only a single promis fails
-		get(selected_display_ids).map(async (id) => await get_display_by_id(id))
+		display_ids.map(async (id) => await get_display_by_id(id))
 	);
 	const displays: Display[] = maybe_displays.filter((d): d is Display => d !== null);
 
-	Promise.all(
+	await Promise.all(
 		displays.map(async (display) => {
-			if (!display || (ignore_offline && display.status === 'host_offline')) return;
+			if (!display) return;
 			await run_function(display);
 			if (update_screenshot_afterwards) {
 				screenshot_loop(display.id);
@@ -269,15 +274,6 @@ export function set_new_display_order(display_id_group_id: string, new_data: Dis
 	});
 }
 
-export function no_active_display_selected(
-	selected_display_ids: string[],
-	online_displays: Display[]
-) {
-	const online_and_selected_displays = online_displays.filter((d) =>
-		selected_display_ids.includes(d.id)
-	);
-	return online_and_selected_displays.length === 0;
-}
 
 if (dev) {
 	setTimeout(add_testing_displays, 0);

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

@@ -7,7 +7,7 @@ import {
 	type Inode,
 	type TreeElement
 } from '../types';
-import { get_display_by_id } from './displays';
+import { get_display_by_id, online_displays, selected_online_display_ids } from './displays';
 import { is_selected, select, selected_display_ids, selected_file_ids } from './select';
 import { create_path, get_file_data, get_file_tree_data } from '../api_handler';
 import { deactivate_old_thumbnail_urls, generate_thumbnail } from './thumbnails';
@@ -26,15 +26,17 @@ export async function change_file_path(new_path: string) {
 
 	deactivate_old_thumbnail_urls();
 
-	const displays = await db.displays.toArray();
+	for (const display of get(online_displays)) {
+		await update_changed_directories(display, new_path);
+	}
+}
 
-	for (const display of displays) {
-		const changed_paths = await get_changed_directory_paths(display, new_path);
-		if (!changed_paths) continue;
-		console.debug('Update file system from', display.name, ':', changed_paths);
-		for (const path of changed_paths) {
-			await update_folder_elements_recursively(display, path);
-		}
+export async function update_changed_directories(display: Display, path: string = '/') {
+	const changed_paths = await get_changed_directory_paths(display, path);
+	if (!changed_paths) return;
+	console.debug('Update file system from', display.name, ':', changed_paths);
+	for (const path of changed_paths) {
+		await update_folder_elements_recursively(display, path);
 	}
 }
 
@@ -94,7 +96,10 @@ export async function update_current_folder_on_selected_displays() {
 	});
 	const current_path = get(current_file_path);
 
-	for (const display of await db.displays.where('id').anyOf(get(selected_display_ids)).toArray()) {
+	for (const display of await db.displays
+		.where('id')
+		.anyOf(get(selected_online_display_ids))
+		.toArray()) {
 		await update_folder_elements_recursively(display, current_path);
 	}
 }
@@ -107,13 +112,19 @@ export async function get_missing_colliding_display_ids(
 
 	const colliding: string[] = [];
 	const colliding_files = await db.files
-		.where('[path+name]')
-		.equals([file.path, file.name])
-		.filter((e) => e.size !== file.size || e.type !== file.type)
+		.where('name')
+		.equals(file.name)
+		.filter((e) => e.path === file.path && e.size !== file.size)
 		.toArray();
 	for (const colliding_file of colliding_files) {
 		colliding.push(
-			...(await get_display_ids_where_file_is_missing(colliding_file, selected_display_ids))
+			...(
+				await db.files_on_display
+					.where('file_primary_key')
+					.equals(get_file_primary_key(colliding_file))
+					.filter((fod) => selected_display_ids.includes(fod.display_id))
+					.toArray()
+			).map((fod) => fod.display_id)
 		);
 	}
 
@@ -226,7 +237,7 @@ async function get_recursive_changed_directory_paths(
 	return has_changed;
 }
 
-export async function update_folder_elements_recursively(
+async function update_folder_elements_recursively(
 	display: Display,
 	file_path: string = '/'
 ): Promise<void> {
@@ -371,7 +382,7 @@ export async function get_file_by_id(
 export async function run_for_selected_files_on_selected_displays(
 	action: (ip: string, file_names: string[]) => Promise<void>
 ): Promise<void> {
-	for (const display_id of get(selected_display_ids)) {
+	for (const display_id of get(selected_online_display_ids)) {
 		const file_key_strings_on_display: string[] = (
 			await db.files_on_display.where('display_id').equals(display_id).toArray()
 		).map((e) => e.file_primary_key);
@@ -409,12 +420,7 @@ export async function create_path_on_all_selected_displays(
 	}
 	setTimeout(async () => {
 		for (const display of displays_without_path) {
-			const changed_paths = await get_changed_directory_paths(display, '/');
-			if (!changed_paths) continue;
-			console.debug('Update file system from', display.name, ':', changed_paths);
-			for (const path of changed_paths) {
-				await update_folder_elements_recursively(display, path);
-			}
+			await update_changed_directories(display);
 		}
 	}, 0);
 }

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

@@ -1,4 +1,5 @@
-import { writable, type Writable } from 'svelte/store';
+import { get, writable, type Writable } from 'svelte/store';
+import { online_displays, selected_online_display_ids } from './displays';
 
 export const selected_file_ids: Writable<string[]> = writable<string[]>([]); // JSON.stringify([string, string, number, string])
 export const selected_display_ids: Writable<string[]> = writable<string[]>([]);
@@ -19,6 +20,11 @@ export function select(
 		}
 		return all_ids;
 	});
+	
+	if (selected_ids === selected_display_ids) {
+		const current_online_display_ids = get(online_displays).map((d) => d.id);
+		selected_online_display_ids.set(get(selected_display_ids).filter((id) => current_online_display_ids.includes(id)));
+	}
 }
 
 export function is_selected(id: string, selected_ids: string[]): boolean {

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

@@ -48,6 +48,7 @@ export type FileTransferTaskData =
 				display: ShortDisplay;
 				loading_data: FileLoadingData;
 			}[];
+			open_file_afterwards_on_display_ids: string[];
 	  };
 
 export type FileLoadingData = {
@@ -95,6 +96,7 @@ export type Display = {
 	group_id: string;
 	name: string;
 	status: DisplayStatus;
+	version?: string;
 };
 
 export type DisplayGroup = {
@@ -126,8 +128,8 @@ export type MenuOption = {
 
 export type PopupContent = {
 	open: boolean;
-	snippet: Snippet<[any]> | Snippet<[]> | Snippet | null | any;
-	snippet_arg?: any;
+	snippet: Snippet<[string]> | Snippet<[]> | null;
+	snippet_arg?: string;
 	title?: string;
 	title_class?: string;
 	title_icon?: typeof X | null;

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

@@ -100,7 +100,7 @@ export function display_status_to_info(status: DisplayStatus): string {
 			return 'Lädt';
 		case 'host_offline':
 			return 'Offline';
-		case null:
+		default:
 			return '???';
 	}
 }
@@ -113,3 +113,12 @@ export function get_sanitized_file_url(file_path: string, is_preview = false) {
 
 	return `/file/${is_preview ? 'preview/' : ''}${[...pathSegments].join('/')}`;
 }
+
+
+let keyboard_queue = Promise.resolve();
+
+export function add_to_keyboard_queue(task: () => Promise<void>) {
+	keyboard_queue = keyboard_queue.then(task).catch((err) => {
+		console.error('Error in input queue:', err);
+	});
+}

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

@@ -15,6 +15,7 @@
 </svelte:head>
 
 {#if !dev}
+	<!-- eslint-disable-next-line svelte/no-at-html-tags -->
 	{@html versionSplashScreen}
 {/if}
 

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

@@ -7,10 +7,8 @@
 		Trash2,
 		Menu,
 		ChevronDown,
-		icons,
 		SquareCheckBig,
 		Square,
-		X,
 		Info
 	} from 'lucide-svelte';
 	import Button from '$lib/components/Button.svelte';
@@ -37,6 +35,7 @@
 	import { preview_settings } from '$lib/ts/stores/ui_behavior';
 	import NumberSettingInput from '$lib/components/NumberSettingInput.svelte';
 	import { db } from '$lib/ts/database';
+	import version from './../../../../shared/version.txt?raw';
 
 	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))$/;
@@ -46,7 +45,7 @@
 		open: false,
 		snippet: null,
 		title: '',
-		title_class: '!text-xl',
+		title_class: '!text-xl'
 	});
 	let remove_display_name = $state('');
 
@@ -72,13 +71,13 @@
 		const mac = text_inputs_valid.mac.value === '' ? null : text_inputs_valid.mac.value;
 		const name = text_inputs_valid.name.value;
 		let display: Display | null = null;
-		if (!!existing_display_id) {
+		if (existing_display_id) {
 			display = await edit_display_data(existing_display_id, ip, mac, name);
 		} else {
-			const status = await ping_ip(text_inputs_valid.ip.value);
-			display = await add_display(ip, mac, name, status);
+			const resp = await ping_ip(text_inputs_valid.ip.value);
+			display = await add_display(ip, mac, name, resp.status);
 		}
-		if (!!display) {
+		if (display) {
 			await update_display_status(display);
 		}
 	}
@@ -120,7 +119,7 @@
 			title: 'Neuen Bildschirm Hinzufügen',
 			title_icon: Monitor,
 			title_class: '!text-xl',
-			window_class: 'w-3xl',
+			window_class: 'w-3xl'
 		};
 	};
 
@@ -131,7 +130,7 @@
 			title: 'Einstellungen',
 			title_icon: Settings,
 			title_class: '!text-xl',
-			window_class: 'w-3xl',
+			window_class: 'w-3xl'
 		};
 	};
 
@@ -143,7 +142,7 @@
 			snippet_arg: display_id,
 			title: 'Bildschirm wirklich löschen?',
 			title_class: 'text-red-400 !text-xl',
-			title_icon: Trash2,
+			title_icon: Trash2
 		};
 	};
 
@@ -161,7 +160,7 @@
 			snippet_arg: display_id,
 			title: 'Bildschirm bearbeiten',
 			title_icon: Monitor,
-			title_class: '!text-xl',
+			title_class: '!text-xl'
 		};
 	};
 
@@ -173,17 +172,21 @@
 			snippet: about_popup,
 			title: 'Über PLG MuDiCS',
 			title_icon: Info,
-			title_class: '!text-xl',
+			title_class: '!text-xl'
 		};
 	};
 </script>
 
+<!-- eslint-disable-next-line @typescript-eslint/no-unused-vars -->
 {#snippet about_popup(_: string)}
 	<div class="px-2">
+		<p>
+			{version}
+		</p>
 		<h3 class="text-lg font-bold mt-4">Entwickler</h3>
 		<p>
-			<a target="_blank" class="link" href="https://github.com/programmer-44">E44</a>
-			<a target="_blank" class="link" href="https://codeberg.org/2mal3">2mal3</a>,
+			<a target="_blank" class="link" href="https://github.com/programmer-44">E44</a>,
+			<a target="_blank" class="link" href="https://codeberg.org/2mal3">2mal3</a>
 		</p>
 
 		<h3 class="text-lg font-bold mt-4">Lizenz</h3>
@@ -249,7 +252,7 @@
 		title="Anzeigename"
 		placeholder="z.B. Beamer vorne links"
 		is_valid_function={async (input: string) => {
-			if (!!existing_display_id) {
+			if (existing_display_id) {
 				if (input === (await get_display_by_id(existing_display_id))?.name)
 					return [true, 'Gültiger Name'];
 			}
@@ -279,11 +282,11 @@
 				className="px-4 gap-2"
 				bg="bg-stone-750"
 				click_function={async () => {
-					const status = await ping_ip(text_inputs_valid.ip.value);
+					const resp = await ping_ip(text_inputs_valid.ip.value);
 					notifications.push(
 						'info',
 						`Ping '${text_inputs_valid.ip.value}'`,
-						`Aktueller Zustand: ${display_status_to_info(status)}`
+						`Aktueller Zustand: ${display_status_to_info(resp.status)}`
 					);
 				}}><Radio /> Ping</Button
 			>
@@ -313,7 +316,7 @@
 		{/if}
 		<Button
 			disabled={!all_text_inputs_valid()}
-			className="{!!existing_display_id ? 'px-4' : 'pl-3 pr-4 gap-2'} font-bold"
+			className="{existing_display_id ? 'px-4' : 'pl-3 pr-4 gap-2'} font-bold"
 			bg="bg-stone-650"
 			click_function={async () => {
 				await finalize_add_edit_display(existing_display_id);

control/frontend/src/routes/ControlView.svelte

@@ -21,19 +21,20 @@
 		show_blackscreen,
 		shutdown,
 		startup,
-		show_html
+		open_website
 	} from '$lib/ts/api_handler';
 	import {
 		get_display_by_id,
-		no_active_display_selected,
-		online_displays,
-		run_on_all_selected_displays
+		run_on_all_selected_displays,
+		selected_online_display_ids
 	} from '$lib/ts/stores/displays';
 	import { selected_display_ids } from '$lib/ts/stores/select';
 	import TipTapInput from './TipTapInput.svelte';
 	import { db } from '$lib/ts/database';
 	import { liveQuery, type Observable } from 'dexie';
 	import TextInput from '$lib/components/TextInput.svelte';
+	import { add_to_keyboard_queue } from '$lib/ts/utils';
+	import { onMount } from 'svelte';
 
 	let all_display_states: Observable<'on' | 'off' | 'mixed'> | undefined = $state();
 	$effect(() => {
@@ -44,11 +45,16 @@
 	let popup_content: PopupContent = $state({
 		open: false,
 		snippet: null,
-		title: '',
+		title: ''
 	});
 
 	let current_text = $state('');
 
+	const key_pressed = $state({
+		ArrowRight: false,
+		ArrowLeft: false
+	});
+
 	function popup_close_function() {
 		popup_content.open = false;
 	}
@@ -79,7 +85,7 @@
 			snippet: website_popup,
 			title: 'Webseite Anzeigen',
 			window_class: 'w-xl',
-			title_icon: Globe,
+			title_icon: Globe
 		};
 	};
 
@@ -102,15 +108,19 @@
 			open: true,
 			snippet: ask_shutdown_popup,
 			title: 'Bildschirm Herunterfahren',
-			title_icon: PowerOff,
+			title_icon: PowerOff
 		};
 	}
 
 	async function shutdown_action() {
 		popup_content.open = false;
-		await run_on_all_selected_displays((d) => {
-			shutdown(d.ip); // no await here because we want to be fast
-			db.displays.update(d.id, { status: 'app_offline', preview: { currently_updating: false, url: null} });
+		await run_on_all_selected_displays(async (d) => {
+			if (await shutdown(d.ip)) {
+				db.displays.update(d.id, {
+					status: 'app_offline',
+					preview: { currently_updating: false, url: null }
+				});
+			}
 		}, false);
 	}
 
@@ -122,7 +132,7 @@
 				db.displays.update(d.id, { status: 'app_offline' });
 			},
 			false,
-			false
+			$selected_display_ids
 		);
 	}
 
@@ -134,7 +144,7 @@
 
 	function validate_website_url(url: string): [boolean, string] {
 		if (url === '') return [true, ''];
-		const regex = /^https?:\/\/[\w\-]+(\.[\w\-]+)+([\w\-\._~:/?#\[\]@!$&'\(\)\*\+,;=.])*/;
+		const regex = /^https?:\/\/[\w-]+(\.[\w-]+)+([\w\-._~:/?#[\]@!$&'()*+,;=.])*/;
 		if (regex.test(url)) {
 			return [true, ''];
 		}
@@ -143,10 +153,58 @@
 
 	async function send_website() {
 		popup_content.open = false;
-		await run_on_all_selected_displays((d) =>
-			show_html(d.ip, `<iframe src="${website_url}"></iframe>`)
-		);
+		await run_on_all_selected_displays((d) => open_website(d.ip, website_url));
 	}
+
+	function has_open_popup(): boolean {
+		return document.querySelector('.popup') !== null;
+	}
+
+	function handle_key(
+		event: KeyboardEvent,
+		key: 'ArrowRight' | 'ArrowLeft',
+		action: 'press' | 'release'
+	) {
+		if (event.key === key) {
+			const current_press_state: boolean = key_pressed[key];
+			if (
+				(action === 'press' && (current_press_state === true || has_open_popup())) ||
+				(action === 'release' && current_press_state === false)
+			)
+				return;
+
+			key_pressed[key] = !current_press_state;
+			add_to_keyboard_queue(async () => {
+				await run_on_all_selected_displays(
+					(d) => send_keyboard_input(d.ip, [{ key, action }]),
+					true
+				);
+			});
+		}
+	}
+
+	function add_remove_event_listeners(
+		add_remove_function: (type: string, listener: (e: KeyboardEvent) => void) => void
+	) {
+		const actions = {
+			keydown: 'press',
+			keyup: 'release'
+		} as const;
+		const keys = ['ArrowRight', 'ArrowLeft'] as const;
+
+		for (const [action_type, action_value] of Object.entries(actions)) {
+			for (const key of keys) {
+				add_remove_function(action_type, (e: KeyboardEvent) => handle_key(e, key, action_value));
+			}
+		}
+	}
+
+	onMount(() => {
+		add_remove_event_listeners(window.addEventListener);
+		return () => {
+			add_remove_event_listeners(window.removeEventListener);
+		};
+	});
 </script>
 
 {#snippet website_popup()}
@@ -185,11 +243,11 @@
 {/snippet}
 
 {#snippet send_keys_popup()}
-	<KeyInput {popup_close_function}/>
+	<KeyInput {popup_close_function} />
 {/snippet}
 
 {#snippet text_popup()}
-	<TipTapInput bind:text={current_text}/>
+	<TipTapInput bind:text={current_text} />
 {/snippet}
 
 <div class="grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl min-w-0">
@@ -202,31 +260,43 @@
 				<div class="flex flex-row gap-2 w-75 justify-normal">
 					<button
 						title="Vorherige Folie (Pfeil nach Links) [gedrückt halten möglich]"
-						class="px-9 bg-stone-700 {$selected_display_ids.length === 0
+						class="px-9 {key_pressed.ArrowLeft
+							? 'bg-stone-500'
+							: 'bg-stone-700'} {$selected_online_display_ids.length === 0
 							? 'text-stone-500 cursor-not-allowed'
 							: 'hover:bg-stone-600 active:bg-stone-500 cursor-pointer'} py-2 rounded-xl flex justify-center items-center transition-colors duration-200"
-						disabled={$selected_display_ids.length === 0}
-						onmousedown={async () => {
-							await send_single_key_press('ArrowLeft', 'press');
+						disabled={$selected_online_display_ids.length === 0 || key_pressed.ArrowLeft}
+						onmousedown={(e: MouseEvent) => {
+							if (e.button !== 0) return;
+							add_to_keyboard_queue(async () => await send_single_key_press('ArrowLeft', 'press'));
 						}}
-						onmouseup={async () => {
-							await send_single_key_press('ArrowLeft', 'release');
+						onmouseup={(e: MouseEvent) => {
+							if (e.button !== 0) return;
+							add_to_keyboard_queue(
+								async () => await send_single_key_press('ArrowLeft', 'release')
+							);
 						}}
 					>
 						<ArrowBigLeft />
 					</button>
 
 					<button
-						title="Vorherige Folie (Pfeil nach Links) [gedrückt halten möglich]"
-						class="px-9 bg-stone-700 {$selected_display_ids.length === 0
-							? 'text-stone-500 cursor-not-allowed'
-							: 'hover:bg-stone-600 active:bg-stone-500 cursor-pointer'} py-2 rounded-xl flex justify-center items-center transition-colors duration-200"
-						disabled={$selected_display_ids.length === 0}
-						onmousedown={async () => {
-							await send_single_key_press('ArrowRight', 'press');
+						title="Nächste Folie (Pfeil nach Rechts) [gedrückt halten möglich]"
+						class="px-9 {key_pressed.ArrowRight
+							? 'bg-stone-500 cursor-not-allowed'
+							: `bg-stone-700 ${
+									$selected_online_display_ids.length === 0
+										? 'text-stone-500 cursor-not-allowed'
+										: 'hover:bg-stone-600 active:bg-stone-500 cursor-pointer'
+								}`}  py-2 rounded-xl flex justify-center items-center transition-colors duration-200"
+						disabled={$selected_online_display_ids.length === 0 || key_pressed.ArrowRight}
+						onmousedown={() => {
+							add_to_keyboard_queue(async () => await send_single_key_press('ArrowRight', 'press'));
 						}}
-						onmouseup={async () => {
-							await send_single_key_press('ArrowRight', 'release');
+						onmouseup={() => {
+							add_to_keyboard_queue(
+								async () => await send_single_key_press('ArrowRight', 'release')
+							);
 						}}
 					>
 						<ArrowBigRight />
@@ -236,19 +306,19 @@
 				<Button
 					className="px-3 flex gap-3 w-75 justify-normal"
 					click_function={show_text_popup}
-					disabled={no_active_display_selected($selected_display_ids, $online_displays)}
+					disabled={$selected_online_display_ids.length === 0}
 					><TextAlignStart /> Text Anzeigen</Button
 				>
 
 				<Button
 					className="px-3 flex gap-3 w-75 justify-normal"
-					disabled={no_active_display_selected($selected_display_ids, $online_displays)}
+					disabled={$selected_online_display_ids.length === 0}
 					click_function={show_website_popup}><Globe /> Webseite Anzeigen</Button
 				>
 
 				<Button
 					className="px-3 flex gap-3 w-75 justify-normal"
-					disabled={no_active_display_selected($selected_display_ids, $online_displays)}
+					disabled={$selected_online_display_ids.length === 0}
 					click_function={async () => {
 						await run_on_all_selected_displays((d) => show_blackscreen(d.ip));
 					}}><Presentation />Blackout</Button
@@ -263,7 +333,7 @@
 
 				<Button
 					className="px-3 flex gap-3 w-75 justify-normal"
-					disabled={no_active_display_selected($selected_display_ids, $online_displays)}
+					disabled={$selected_online_display_ids.length === 0}
 					click_function={show_send_keys_popup}><Keyboard /> Tastatur-Eingaben Senden</Button
 				>
 			</div>
@@ -271,8 +341,7 @@
 				<div class="flex flex-col gap-2">
 					<Button
 						className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
-						disabled={$all_display_states === 'on' ||
-							no_active_display_selected($selected_display_ids, $online_displays)}
+						disabled={$all_display_states === 'on' || $selected_display_ids.length === 0}
 						click_function={startup_action}
 					>
 						<Power /> Bildschirm Hochfahren
@@ -280,8 +349,7 @@
 
 					<Button
 						className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
-						disabled={$all_display_states === 'off' ||
-							no_active_display_selected($selected_display_ids, $online_displays)}
+						disabled={$all_display_states === 'off' || $selected_online_display_ids.length === 0}
 						click_function={ask_shutdown}
 					>
 						<PowerOff /> Bildschirm Herunterfahren</Button

control/frontend/src/routes/DisplayView.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-	import { fade, scale } from 'svelte/transition';
+	import { fade } from 'svelte/transition';
 	import {
 		all_displays_of_group_selected,
 		get_display_by_id,
@@ -13,6 +13,7 @@
 		change_height,
 		current_height,
 		dnd_flip_duration_ms,
+		get_selectable_color_classes,
 		is_display_drag,
 		is_group_drag,
 		next_height_step_size,
@@ -21,16 +22,13 @@
 	import { type Display, type DisplayGroup, type MenuOption } from '$lib/ts/types';
 	import Button from '$lib/components/Button.svelte';
 	import OnlineState from '../lib/components/OnlineState.svelte';
-	import { Menu, Pencil, PinOff, Trash2, VideoOff, ZoomIn, ZoomOut } from 'lucide-svelte';
+	import { History, Menu, Pencil, PinOff, Trash2, VideoOff, ZoomIn, ZoomOut } from 'lucide-svelte';
 	import { selected_display_ids } from '$lib/ts/stores/select';
 	import { dragHandleZone } from 'svelte-dnd-action';
 	import DisplayGroupObject from '../lib/components/DisplayGroupObject.svelte';
-	import { Pane, Splitpanes } from 'svelte-splitpanes';
+	import { Pane, Splitpanes, type IPaneSizingEvent } from 'svelte-splitpanes';
 	import HighlightedText from '$lib/components/HighlightedText.svelte';
 	import { liveQuery, type Observable } from 'dexie';
-	import { onMount } from 'svelte';
-	import { flip } from 'svelte/animate';
-	import { cubicOut } from 'svelte/easing';
 
 	let {
 		handle_display_deletion,
@@ -60,7 +58,7 @@
 	$effect(() => {
 		const d = $display_groups;
 		const sdi = $selected_display_ids;
-		all_groups_selected = liveQuery(() => all_selected(d || [], sdi));
+		all_groups_selected = liveQuery(() => d.length !== 0 && all_selected(d || [], sdi));
 	});
 
 	let last_pinned_pane_size: number = 45;
@@ -71,8 +69,13 @@
 		pinned_pane_size = 0;
 	}
 
-	function get_display_menu_options(display_id: string): MenuOption[] {
+	function get_display_menu_options(display_id: string, display_version: string|undefined): MenuOption[] {
 		return [
+			{
+				icon: History,
+				name: display_version ?? "Version unbekannt",
+				disabled: true,
+			},
 			{
 				icon: Pencil,
 				name: 'Bildschirm bearbeiten',
@@ -110,7 +113,7 @@
 		return true;
 	}
 
-	function handle_splitpane_resize(e: any) {
+	function handle_splitpane_resize(e: CustomEvent<IPaneSizingEvent[]>) {
 		if (e.detail[0].size === 0) {
 			$pinned_display_id = null;
 			pinned_pane_size = last_pinned_pane_size;
@@ -168,7 +171,7 @@
 									click_function={(e) => {
 										e.stopPropagation();
 									}}
-									menu_options={get_display_menu_options($pinned_display_id)}
+									menu_options={get_display_menu_options($pinned_display_id, $pinned_display?.version)}
 								>
 									<Menu />
 								</Button>
@@ -215,17 +218,28 @@
 					</span>
 					<div class="flex flex-row gap-1">
 						<button
-							class="min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors bg-stone-600"
+							disabled={$display_groups?.length === 0}
+							class="min-w-40 px-4 rounded-xl duration-200 transition-colors {$display_groups?.length ===
+				0
+					? 'text-stone-500 cursor-not-allowed'
+					: 'cursor-pointer'} {get_selectable_color_classes($all_groups_selected || false, {
+					bg: true,
+					hover: $display_groups?.length !== 0,
+					active: $display_groups?.length !== 0,
+					text: true
+				})}"
 							onclick={async () => await toggle_all_selected_displays($display_groups)}
 						>
 							<span>{$all_groups_selected || false ? 'Alle Abwählen' : 'Alle Auswählen'}</span>
 						</button>
+
+
 						<div class="flex flex-row">
 							<Button
 								title="Bildschirme größer darstellen"
 								className="aspect-square p-1.5! pr-1! rounded-r-none"
 								bg="bg-stone-600"
-								disabled={!Boolean(next_height_step_size('display', $current_height, 1))}
+								disabled={!next_height_step_size('display', $current_height, 1)}
 								click_function={() => {
 									change_height('display', 1);
 								}}
@@ -236,7 +250,7 @@
 								title="Bildschirme kleiner darstellen"
 								className="aspect-square p-1.5! pl-1! rounded-l-none"
 								bg="bg-stone-600"
-								disabled={!Boolean(next_height_step_size('display', $current_height, -1))}
+								disabled={!next_height_step_size('display', $current_height, -1)}
 								click_function={() => {
 									change_height('display', -1);
 								}}

control/frontend/src/routes/FileView.svelte

@@ -11,7 +11,12 @@
 		ZoomIn,
 		ZoomOut
 	} from 'lucide-svelte';
-	import { change_height, current_height, next_height_step_size } from '$lib/ts/stores/ui_behavior';
+	import {
+		change_height,
+		current_height,
+		get_selectable_color_classes,
+		next_height_step_size
+	} from '$lib/ts/stores/ui_behavior';
 	import Button from '$lib/components/Button.svelte';
 	import PathBar from './PathBar.svelte';
 	import { select, selected_display_ids, selected_file_ids } from '$lib/ts/stores/select';
@@ -23,7 +28,6 @@
 		update_current_folder_on_selected_displays,
 		get_displays_where_path_not_exists,
 		create_path_on_all_selected_displays
-
 	} from '$lib/ts/stores/files';
 	import { slide } from 'svelte/transition';
 	import InodeElement from '../lib/components/InodeElement.svelte';
@@ -39,7 +43,8 @@
 	import HighlightedText from '$lib/components/HighlightedText.svelte';
 	import { liveQuery, type Observable } from 'dexie';
 	import { download_file, add_upload, add_sync_recursively } from '$lib/ts/file_transfer_handler';
-	import { no_active_display_selected, online_displays } from '$lib/ts/stores/displays';
+	import { selected_online_display_ids } from '$lib/ts/stores/displays';
+	import FileDropZone from '$lib/components/FileDropZone.svelte';
 
 	let current_name: string = $state('');
 	let current_valid: boolean = $state(false);
@@ -50,26 +55,37 @@
 		const s = $selected_file_ids;
 		selected_files = liveQuery(() => get_selected_files(s));
 	});
+	let all_files_selected: boolean = $state(false);
+	$effect(() => {
+		const fe = $current_folder_elements;
+		const sfe_id = $selected_file_ids;
+		if (fe && sfe_id && fe.length !== 0) {
+			all_files_selected =
+				fe.length === sfe_id.length &&
+				!fe.find((inode) => !sfe_id.includes(get_file_primary_key(inode)));
+		}
+	});
 	let current_folder_elements: Observable<Inode[]> | undefined = $state();
 	$effect(() => {
 		const path = $current_file_path,
-			display_ids = $selected_display_ids;
+			display_ids = $selected_online_display_ids;
 		current_folder_elements = liveQuery(() => get_folder_elements(path, display_ids));
 	});
 	let one_file_selected: Observable<boolean> | undefined = $state();
 	$effect(() => {
 		const s = $selected_file_ids;
 		one_file_selected = liveQuery(async () => {
+			if (s.length !== 1) return false;
 			const inode = await get_file_by_id(s[0]);
 			if (!inode) return false;
-			return s.length === 1 && is_folder(inode);
+			return !is_folder(inode);
 		});
 	});
 
 	let popup_content: PopupContent = $state({
 		open: false,
 		snippet: null,
-		title: '',
+		title: ''
 	});
 
 	let file_input: HTMLInputElement;
@@ -79,7 +95,7 @@
 			const results = await Promise.all(selected_file_ids.map((id) => get_file_by_id(id)));
 			return results.filter((element) => element !== null);
 		} catch (e: unknown) {
-			console.error('Error on generating selected_files');
+			console.error('Error on generating selected_files', e);
 			return [];
 		}
 	}
@@ -91,7 +107,7 @@
 	async function create_new_folder() {
 		popup_close_function();
 		const path_with_folder_name = ($current_file_path += current_name.trim() + '/');
-		await create_path_on_all_selected_displays(path_with_folder_name, $selected_display_ids);
+		await create_path_on_all_selected_displays(path_with_folder_name, $selected_online_display_ids);
 		await update_current_folder_on_selected_displays();
 	}
 
@@ -119,7 +135,7 @@
 			snippet: edit_file_name_popup,
 			title: `${file_is_folder ? 'Ordner' : 'Datei'} umbenennen`,
 			title_icon: FolderPlus,
-			snippet_arg: extension,
+			snippet_arg: extension
 		};
 	};
 
@@ -127,13 +143,13 @@
 		current_name = '';
 		current_valid = false;
 		display_names_where_path_does_not_exist = (
-			await get_displays_where_path_not_exists($current_file_path, $selected_display_ids)
+			await get_displays_where_path_not_exists($current_file_path, $selected_online_display_ids)
 		).map((display) => display.name);
 		popup_content = {
 			open: true,
 			snippet: new_folder_popup,
 			title: 'Neuen Ordner erstellen',
-			title_icon: FolderPlus,
+			title_icon: FolderPlus
 		};
 	};
 
@@ -142,17 +158,31 @@
 			open: true,
 			snippet: delete_request_popup,
 			title: `${$selected_file_ids.length} ${$selected_file_ids.length === 1 ? 'Objekt' : 'Objekte'} wirklich löschen?`,
-			title_icon: Trash2,
+			title_icon: Trash2
 		};
 	};
 
+	async function toggle_all_selected_files(current_files: Inode[]) {
+		let action: 'select' | 'deselect';
+		if (all_files_selected === false) {
+			action = 'select';
+		} else {
+			action = 'deselect';
+		}
+		for (const file of current_files) {
+			await select(selected_file_ids, get_file_primary_key(file), action);
+		}
+	}
+
 	async function sync_selected_files(
 		current_selected_file_ids: string[],
 		selected_display_ids: string[],
 		current_folder_elements: Inode[]
 	) {
 		if (current_selected_file_ids.length === 0 && current_folder_elements.length > 0) {
-			current_selected_file_ids = current_folder_elements.map((inode) => get_file_primary_key(inode));
+			current_selected_file_ids = current_folder_elements.map((inode) =>
+				get_file_primary_key(inode)
+			);
 		}
 		if (current_selected_file_ids.length === 0) return;
 		// Mit For-Schleife über ausgewählte Elemente gehen
@@ -171,7 +201,7 @@
 			> existiert nicht auf {display_names_where_path_does_not_exist.length === 1
 				? 'dem Bildschirm'
 				: 'den Bildschirmen'}
-			{#each display_names_where_path_does_not_exist as display_name, i}
+			{#each display_names_where_path_does_not_exist as display_name, i (i)}
 				{#if i !== 0}
 					,
 				{/if}
@@ -246,7 +276,7 @@
 			>{`${$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-y-auto h-full min-h-0 grow-0">
-			{#each $selected_files || [] as file}
+			{#each $selected_files || [] as file, i (i)}
 				<InodeElement {file} not_interactable />
 			{/each}
 		</div>
@@ -276,38 +306,58 @@
 	bind:this={file_input}
 	multiple
 	accept={get_accepted_file_type_string()}
-	onchange={(e) =>
-		add_upload((e.target as HTMLInputElement).files!, $selected_display_ids, $current_file_path)}
+	onchange={async (e) => {
+		const target = e.target as HTMLInputElement;
+		await add_upload(target.files!, $selected_online_display_ids, $current_file_path);
+		target.value = '';
+	}}
 />
 
-<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
+<div class="bg-stone-800 size-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
 	<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
 		<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
 			Dateien Anzeigen und Verwalten
 		</span>
-		<div class="flex flex-row">
-			<Button
-				title="Dateien größer darstellen"
-				className="aspect-square p-1.5! pr-1! rounded-r-none"
-				bg="bg-stone-600"
-				disabled={!Boolean(next_height_step_size('file', $current_height, 1))}
-				click_function={() => {
-					change_height('file', 1);
-				}}
+		<div class="flex flex-row gap-1">
+			<button
+				disabled={$current_folder_elements?.length === 0}
+				class="min-w-40 px-4 rounded-xl duration-200 transition-colors {$current_folder_elements?.length ===
+				0
+					? 'text-stone-500 cursor-not-allowed'
+					: 'cursor-pointer'} {get_selectable_color_classes(all_files_selected, {
+					bg: true,
+					hover: $current_folder_elements?.length !== 0,
+					active: $current_folder_elements?.length !== 0,
+					text: true
+				})}"
+				onclick={async () => await toggle_all_selected_files($current_folder_elements ?? [])}
 			>
-				<ZoomIn class="size-full" />
-			</Button>
-			<Button
-				title="Dateien kleiner darstellen"
-				className="aspect-square p-1.5! pl-1! rounded-l-none"
-				bg="bg-stone-600"
-				disabled={!Boolean(next_height_step_size('file', $current_height, -1))}
-				click_function={() => {
-					change_height('file', -1);
-				}}
-			>
-				<ZoomOut class="size-full" />
-			</Button>
+				<span>{all_files_selected ? 'Alle Abwählen' : 'Alle Auswählen'}</span>
+			</button>
+			<div class="flex flex-row">
+				<Button
+					title="Dateien größer darstellen"
+					className="aspect-square p-1.5! pr-1! rounded-r-none"
+					bg="bg-stone-600"
+					disabled={!next_height_step_size('file', $current_height, 1)}
+					click_function={() => {
+						change_height('file', 1);
+					}}
+				>
+					<ZoomIn class="size-full" />
+				</Button>
+				<Button
+					title="Dateien kleiner darstellen"
+					className="aspect-square p-1.5! pl-1! rounded-l-none"
+					bg="bg-stone-600"
+					disabled={!next_height_step_size('file', $current_height, -1)}
+					click_function={() => {
+						change_height('file', -1);
+					}}
+				>
+					<ZoomOut class="size-full" />
+				</Button>
+			</div>
 		</div>
 	</div>
 	<div class="flex flex-col gap-2 p-2 overflow-hidden relative rounded-b-2xl">
@@ -319,7 +369,7 @@
 						title="Neuen Ordner erstellen (Neuen Ordner mit ausgewählten Objekten erstellen)"
 						className="px-3 flex"
 						click_function={show_new_folder_popup}
-						disabled={no_active_display_selected($selected_display_ids, $online_displays)}><FolderPlus /></Button
+						disabled={$selected_online_display_ids.length === 0}><FolderPlus /></Button
 					>
 					<div class="border border-stone-700 my-1"></div>
 					<Button
@@ -328,13 +378,13 @@
 						click_function={() => {
 							if (file_input) file_input.click();
 						}}
-						disabled={no_active_display_selected($selected_display_ids, $online_displays)}><Upload /></Button
+						disabled={$selected_online_display_ids.length === 0}><Upload /></Button
 					>
 					<Button
 						title="Ausgewählte Datei herunterladen"
 						className="px-3 flex"
 						click_function={async () =>
-							await download_file($selected_file_ids[0], $selected_display_ids)}
+							await download_file($selected_file_ids[0], $selected_online_display_ids)}
 						disabled={!$one_file_selected}><Download /></Button
 					>
 					<div class="border border-stone-700 my-1"></div>
@@ -344,10 +394,10 @@
 						click_function={async () =>
 							await sync_selected_files(
 								$selected_file_ids,
-								$selected_display_ids,
+								$selected_online_display_ids,
 								$current_folder_elements ?? []
 							)}
-						disabled={no_active_display_selected($selected_display_ids, $online_displays)}
+						disabled={$selected_online_display_ids.length === 0}
 						><RefreshCcw />
 						<span class="hidden 2xl:flex">Synchronisieren</span>
 					</Button>
@@ -361,7 +411,7 @@
 					<Button
 						title="Ausgewählte Datei(en) einfügen"
 						className="px-3 flex"
-						disabled={no_active_display_selected($selected_display_ids, $online_displays)}
+						disabled={$selected_online_display_ids.length === 0}
 					>
 						<ClipboardPaste />
 					</Button>
@@ -383,9 +433,13 @@
 				</div>
 			</div>
 		</div>
-		<div class="min-h-0 h-full overflow-y-auto overflow-x-hidden bg-stone-750 rounded-xl">
+
+		<div
+			class="min-h-0 size-full overflow-y-auto overflow-x-hidden bg-stone-750 rounded-xl relative"
+		>
+			<FileDropZone className="rounded-xl size-full" />
 			<div class="flex flex-col gap-2 p-2 min-h-0 max-w-full">
-				{#if no_active_display_selected($selected_display_ids, $online_displays)}
+				{#if $selected_online_display_ids.length === 0}
 					<span class="text-stone-450 px-10 py-6 leading-relaxed text-center">
 						Es sind keine Bildschirme ausgewählt.
 					</span>

control/frontend/src/routes/KeyInput.svelte

@@ -4,9 +4,10 @@
 	import { fade } from 'svelte/transition';
 	import { run_on_all_selected_displays } from '$lib/ts/stores/displays';
 	import { send_keyboard_input } from '$lib/ts/api_handler';
-	import { ArrowDownToLine, ArrowUpFromLine, Grid2x2, Grid2X2, Option } from 'lucide-svelte';
+	import { ArrowDownToLine, ArrowUpFromLine, Grid2x2, Option } from 'lucide-svelte';
 	import Button from '$lib/components/Button.svelte';
 	import { onDestroy } from 'svelte';
+	import { add_to_keyboard_queue } from '$lib/ts/utils';
 
 	let {
 		popup_close_function
@@ -58,17 +59,21 @@
 		const action: 'press' | 'release' = key_down ? 'press' : 'release';
 
 		add_to_last_keys(action.toUpperCase() + ' ' + key);
-		await run_on_all_selected_displays((d) => send_keyboard_input(d.ip, [{ key, action }]), true);
+		add_to_keyboard_queue(async () => {
+			await run_on_all_selected_displays((d) => send_keyboard_input(d.ip, [{ key, action }]), true);
+		});
 	}
 
-	async function release_all_pressed_keys() {
+	function release_all_pressed_keys() {
 		const inputs: { key: string; action: 'press' | 'release' }[] = [];
 		for (let i = current_keys.length - 1; i >= 0; i--) {
 			inputs.push({ key: current_keys[i], action: 'release' });
 			current_keys.splice(i, 1);
 		}
 
-		await run_on_all_selected_displays((d) => send_keyboard_input(d.ip, inputs), true);
+		add_to_keyboard_queue(async () => {
+			await run_on_all_selected_displays((d) => send_keyboard_input(d.ip, inputs), true);
+		});
 	}
 
 	onDestroy(() => {
@@ -91,7 +96,7 @@
 		}}
 		onblur={async () => {
 			active = false;
-			await release_all_pressed_keys();
+			release_all_pressed_keys();
 		}}
 		onkeydown={(e) => on_keyboard_input(e, true)}
 		onkeyup={(e) => on_keyboard_input(e, false)}
@@ -136,11 +141,13 @@
 			<button
 				title="Windows-/Meta-Taste [gedrückt halten möglich]"
 				class="px-3 bg-stone-700 py-2 gap-2 rounded-xl flex items-center transition-colors duration-200 hover:bg-stone-600 active:bg-stone-500 cursor-pointer"
-				onmousedown={async (e) => {
+				onmousedown={async (e: MouseEvent) => {
+					if (e.button !== 0) return;
 					e.preventDefault();
 					await on_key('MetaLeft', true);
 				}}
-				onmouseup={async () => {
+				onmouseup={async (e: MouseEvent) => {
+					if (e.button !== 0) return;
 					await on_key('MetaLeft', false);
 				}}
 			>

control/frontend/src/routes/TipTapInput.svelte

@@ -9,7 +9,6 @@
 		Highlighter,
 		Italic,
 		PaintBucket,
-		QrCode,
 		Strikethrough
 	} from 'lucide-svelte';
 	import Button from '$lib/components/Button.svelte';
@@ -149,7 +148,7 @@
 		editor_state.editor?.destroy();
 	});
 </script>
-
+
 {#each Object.values(color_states) as color_state, i (i)}
 	<input type="color" bind:this={color_state.el} bind:value={color_state.value} class="hidden" />
 {/each}
@@ -163,9 +162,9 @@
 	</div>
 
 	<div class="flex flex-col gap-2 justify-between">
-		<div class="flex flex-col gap-2">
+		<div class="flex flex-col gap-2">
 			{#each text_edit_options as edit_row, i (i)}
-				<div class="flex flex-row gap-1">
+				<div class="flex flex-row gap-1">
 					{#each edit_row as option, j (j)}
 						<div class="flex flex-row">
 							<button

control/justfile

@@ -0,0 +1,7 @@
+[working-directory: 'frontend']
+gen:
+    deno install
+    deno task build
+
+dev: gen
+    go run *.go

control/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"encoding/json"
 	"log/slog"
 	"net"
 	"net/http"
@@ -64,7 +65,7 @@ func main() {
 			os.Exit(1)
 		}
 	}()
-	err = shared.OpenBrowserWindow("http://localhost:"+port, false, "control")
+	err = openBrowserWindow("http://localhost:" + port)
 	if err != nil {
 		slog.Error("Failed to open browser window", "error", err)
 		os.Exit(1)
@@ -83,18 +84,40 @@ func pingRoute(ctx echo.Context) error {
 		return ctx.JSON(http.StatusOK, PingResponse{Status: "host_offline"})
 	}
 
-	conn, err := net.DialTimeout("tcp", ip+":1323", 5*time.Second)
+	client := http.Client{
+		Timeout: 5 * time.Second,
+	}
+
+	resp, err := client.Get("http://" + ip + ":1323/api/ping")
 	if err != nil {
 		return ctx.JSON(http.StatusOK, PingResponse{Status: "app_offline"})
 	}
-	conn.Close()
+	defer resp.Body.Close()
+	if resp.StatusCode != http.StatusOK {
+		return ctx.JSON(http.StatusOK, PingResponse{Status: "app_offline"})
+	}
 
-	return ctx.JSON(http.StatusOK, PingResponse{Status: "app_online"})
+	var appPing AppPingResponse
+	if err := json.NewDecoder(resp.Body).Decode(&appPing); err != nil {
+		return ctx.JSON(http.StatusOK, PingResponse{
+			Status: "app_offline",
+		})
+	}
+
+	return ctx.JSON(http.StatusOK, PingResponse{
+		Status:  "app_online",
+		Version: appPing.Version,
+	})
+}
+
+type AppPingResponse struct {
+	Version string `json:"version"`
 }
 
 type PingResponse struct {
-	Status string `json:"status"`
-	Error  string `json:"error"`
+	Status  string `json:"status"`
+	Version string `json:"version"`
+	Error   string `json:"error"`
 }
 
 type WakeOnLanRequest struct {

control/open_browser.go

@@ -1,4 +1,4 @@
-package shared
+package main
 
 import (
 	"errors"
@@ -6,35 +6,31 @@ import (
 	"os"
 	"os/exec"
 	"path/filepath"
+	"plg-mudics/shared"
 )
 
-func OpenBrowserWindow(url string, fullscreen bool, profile string) error {
+func openBrowserWindow(url string) error {
 	bins := []string{"chromium", "chromium-browser"}
 
 	home, err := os.UserHomeDir()
 	if err != nil {
 		return fmt.Errorf("unable to determine user home directory: %w", err)
 	}
-	browserProfileDirPath := filepath.Join(home, ".local", "share", "plg-mudics", fmt.Sprintf("browser-%s", profile))
+	browserProfileDirPath := filepath.Join(home, ".local", "share", "plg-mudics", "browser-control")
 	if err := os.MkdirAll(browserProfileDirPath, os.ModePerm); err != nil {
 		return fmt.Errorf("failed to create local config directory: %w", err)
 	}
 
 	args := []string{
 		fmt.Sprintf("--app=%s", url),
-		"--autoplay-policy=no-user-gesture-required",
 		fmt.Sprintf("--user-data-dir=%s", browserProfileDirPath),
-		"--allow-running-insecure-content",
-		"--disable-features=XFrameOptions",
-	}
-	if fullscreen {
-		args = append(args, "--start-fullscreen")
+		"--disable-features=Translate",
 	}
 
 	errs := []string{}
 	for _, bin := range bins {
 		cmd := exec.Command(bin, args...)
-		commandOutput := RunShellCommand(cmd)
+		commandOutput := shared.RunShellCommand(cmd)
 		if commandOutput.ExitCode == 0 {
 			return nil
 		}

display/README.md

@@ -62,6 +62,12 @@ Even when the command itself fails.
 
 The screenshot as binary in the response body.
 
+## PATCH `/openWebsite`
+
+### Request Body
+
+- `url`: string
+
 ## POST `/file/<path>` - Upload File
 
 ### Responses

display/browser/main.go

@@ -0,0 +1,83 @@
+package browser
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/chromedp/chromedp"
+)
+
+var Browser BrowserType = BrowserType{}
+
+type BrowserType struct {
+	Ctx    context.Context
+	Cancel context.CancelFunc
+}
+
+func (b *BrowserType) Init() error {
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return fmt.Errorf("unable to determine user home directory: %w", err)
+	}
+	browserProfileDirPath := filepath.Join(home, ".local", "share", "plg-mudics", "browser-display")
+	if err := os.MkdirAll(browserProfileDirPath, os.ModePerm); err != nil {
+		return fmt.Errorf("failed to create local config directory: %w", err)
+	}
+
+	opts := []chromedp.ExecAllocatorOption{
+		chromedp.Flag("headless", false),
+		chromedp.Flag("app", "http://example.com"), // app mode prevents a few unwanted features of chrome, the start url is directly overwritten
+		chromedp.Flag("start-fullscreen", true),
+		chromedp.Flag("hide-scrollbars", true),
+		chromedp.Flag("allow-file-access-from-files", true),
+		chromedp.Flag("user-data-dir", browserProfileDirPath),
+		chromedp.Flag("autoplay-policy", "no-user-gesture-required"),
+	}
+
+	initCtx, _ := chromedp.NewExecAllocator(context.Background(), opts...)
+	b.Ctx, b.Cancel = chromedp.NewContext(initCtx)
+
+	return nil
+}
+
+func (b *BrowserType) OpenPage(url string) error {
+	err := chromedp.Run(b.Ctx, chromedp.Navigate(url))
+	if err != nil {
+		return fmt.Errorf("navigate to URL: %w", err)
+	}
+	return nil
+}
+
+// Yes, we need that trick with creating a temp file and not directly sending html since
+// chrome only allows us to access local files via other local files
+func (b *BrowserType) OpenHTML(html string) error {
+	var err error
+
+	tempFile, err := os.CreateTemp("", "mudics-*.html")
+	if err != nil {
+		return fmt.Errorf("could not create tempfile: %w", err)
+	}
+	defer func() { _ = tempFile.Close() }()
+
+	_, err = tempFile.WriteString(html)
+	if err != nil {
+		return fmt.Errorf("could not write to tempfile: %w", err)
+	}
+
+	err = chromedp.Run(b.Ctx, chromedp.Navigate("file://"+tempFile.Name()))
+	if err != nil {
+		return fmt.Errorf("navigate to URL: %w", err)
+	}
+
+	return nil
+}
+
+func (b *BrowserType) OpenPDF(path string) error {
+	err := b.OpenPage("file://" + path + "#toolbar=0&view=Fit")
+	if err != nil {
+		return fmt.Errorf("open PDF: %w", err)
+	}
+	return nil
+}

display/go.mod

@@ -1,9 +1,10 @@
 module plg-mudics/display
 
-go 1.24.4
+go 1.25
 
 require (
-	github.com/a-h/templ v0.3.960
+	github.com/a-h/templ v0.3.977
+	github.com/chromedp/chromedp v0.14.2
 	github.com/gabriel-vasile/mimetype v1.4.11
 	github.com/labstack/echo/v4 v4.15.0
 	github.com/micmonay/keybd_event v1.1.2
@@ -14,9 +15,15 @@ require (
 	github.com/a-h/parse v0.0.0-20250122154542-74294addb73e // indirect
 	github.com/andybalholm/brotli v1.1.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
+	github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d // indirect
+	github.com/chromedp/sysutil v1.1.0 // indirect
 	github.com/cli/browser v1.3.0 // indirect
 	github.com/fatih/color v1.16.0 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e // indirect
+	github.com/gobwas/httphead v0.1.0 // indirect
+	github.com/gobwas/pool v0.2.1 // indirect
+	github.com/gobwas/ws v1.4.0 // 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
@@ -27,7 +34,7 @@ require (
 	golang.org/x/mod v0.30.0 // indirect
 	golang.org/x/net v0.48.0 // indirect
 	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/sys v0.40.0 // indirect
 	golang.org/x/text v0.32.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
 	golang.org/x/tools v0.39.0 // indirect

display/go.sum

@@ -2,10 +2,18 @@ github.com/a-h/parse v0.0.0-20250122154542-74294addb73e h1:HjVbSQHy+dnlS6C3XajZ6
 github.com/a-h/parse v0.0.0-20250122154542-74294addb73e/go.mod h1:3mnrkvGpurZ4ZrTDbYU84xhwXW2TjTKShSwjRi2ihfQ=
 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/a-h/templ v0.3.977 h1:kiKAPXTZE2Iaf8JbtM21r54A8bCNsncrfnokZZSrSDg=
+github.com/a-h/templ v0.3.977/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=
 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
+github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d h1:ZtA1sedVbEW7EW80Iz2GR3Ye6PwbJAJXjv7D74xG6HU=
+github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d/go.mod h1:NItd7aLkcfOA/dcMXvl8p1u+lQqioRMq/SqDp71Pb/k=
+github.com/chromedp/chromedp v0.14.2 h1:r3b/WtwM50RsBZHMUm9fsNhhzRStTHrKdr2zmwbZSzM=
+github.com/chromedp/chromedp v0.14.2/go.mod h1:rHzAv60xDE7VNy/MYtTUrYreSc0ujt2O1/C3bzctYBo=
+github.com/chromedp/sysutil v1.1.0 h1:PUFNv5EcprjqXZD9nJb9b/c9ibAbxiYo4exNWZyipwM=
+github.com/chromedp/sysutil v1.1.0/go.mod h1:WiThHUdltqCNKGc4gaU50XgYjwjYIhKWoHGPTUfWTJ8=
 github.com/cli/browser v1.3.0 h1:LejqCrpWr+1pRqmEPDGnTZOjsMe7sehifLynZJuqJpo=
 github.com/cli/browser v1.3.0/go.mod h1:HH8s+fOAxjhQoBUAsKuPCbqUuxZDhQ2/aD+SzsEfBTk=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -16,6 +24,14 @@ github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nos
 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/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e h1:Lf/gRkoycfOBPa42vU2bbgPurFong6zXeFtPoxholzU=
+github.com/go-json-experiment/json v0.0.0-20251027170946-4849db3c2f7e/go.mod h1:uNVvRXArCGbZ508SxYYTC5v1JWoz2voff5pm25jU1Ok=
+github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
+github.com/gobwas/httphead v0.1.0/go.mod h1:O/RXo79gxV8G+RqlR/otEwx4Q36zl9rqC5u12GKvMCM=
+github.com/gobwas/pool v0.2.1 h1:xfeeEhW7pwmX8nuLVlqbzVc7udMDrwetjEv+TZIz1og=
+github.com/gobwas/pool v0.2.1/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
+github.com/gobwas/ws v1.4.0 h1:CTaoG1tojrh4ucGPcoJFiAQUAsEWekEWvLy7GsVNqGs=
+github.com/gobwas/ws v1.4.0/go.mod h1:G3gNqMNtPppf5XUz7O4shetPpcZ1VJ7zt18dlUeakrc=
 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=
@@ -64,6 +80,8 @@ golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
 golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
 golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
 golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
 golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=

display/justfile

@@ -0,0 +1,5 @@
+gen:
+    go tool templ generate
+
+dev: gen
+    go run *.go

display/main.go

@@ -4,13 +4,11 @@ import (
 	"log/slog"
 	"os"
 
+	"plg-mudics/display/browser"
 	"plg-mudics/display/pkg"
 	"plg-mudics/display/web"
-	"plg-mudics/shared"
 )
 
-//go:generate go tool templ generate
-
 func main() {
 	var err error
 
@@ -19,16 +17,23 @@ func main() {
 	if err != nil {
 		slog.Error("Failed to get storage path", "error", err)
 		os.Exit(1)
-		return
 	}
 	port := "1323"
 
 	// 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(shared.Version, port)
-	err = shared.OpenBrowserWindow("http://localhost:"+port, true, "display")
+	go web.StartWebServer(port)
+
+	err = browser.Browser.Init()
 	if err != nil {
-		slog.Error("Failed to open browser window", "error", err)
+		slog.Error("Initialize browser", "error", err)
 		os.Exit(1)
 	}
+	err = pkg.OpenStartScreen()
+	if err != nil {
+		slog.Error("Open start screen", "error", err)
+		os.Exit(1)
+	}
+	defer browser.Browser.Cancel()
+	<-browser.Browser.Ctx.Done()
 }

display/pkg/file_handler.go

@@ -1,75 +0,0 @@
-package pkg
-
-import (
-	"fmt"
-	"log/slog"
-	"os"
-	"os/exec"
-	"path/filepath"
-	"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":
-		// yes, we need this weird workaround to delete lock files since libreoffice
-		// doesn't expose an option to ignore them or prevent their creation
-		// the --view argument for some reason doesn't work with --show
-		parent := filepath.Dir(path)
-		cmd := exec.Command("find", parent, "-name", ".~lock*", "-type", "f", "-delete")
-		result := shared.RunShellCommand(cmd)
-		if result.ExitCode != 0 {
-			slog.Warn("could not remove lock files", "path", parent, "stderr", result.Stderr, "exitCode", result.ExitCode)
-		}
-
-		fh.runningProgram = exec.Command("soffice", "--show", path, "--nologo", "--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/main.go

@@ -1,51 +1,23 @@
 package pkg
 
 import (
+	"bytes"
+	"context"
 	"errors"
 	"fmt"
-	"net"
+	"log/slog"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"strings"
 	"time"
 
+	"plg-mudics/display/browser"
 	"plg-mudics/shared"
 )
 
-func GetDeviceIp() (string, error) {
-	addrs, err := net.InterfaceAddrs()
-	if err != nil {
-		return "", fmt.Errorf("failed to get network interfaces: %w", err)
-	}
-	for _, addr := range addrs {
-		ipNet, ok := addr.(*net.IPNet)
-		if ok && !ipNet.IP.IsLoopback() && ipNet.IP.To4() != nil {
-			return ipNet.IP.String(), nil
-		}
-	}
-
-	return "", fmt.Errorf("no suitable IP address found")
-}
-
-func GetDeviceMac() (string, error) {
-	interfaces, err := net.Interfaces()
-	if err != nil {
-		return "", fmt.Errorf("failed to get network interfaces: %w", err)
-	}
-
-	for _, interf := range interfaces {
-		mac := interf.HardwareAddr.String()
-		if mac != "" {
-			return mac, nil
-		}
-	}
-
-	return "", fmt.Errorf("no suitable MAC address found")
-}
-
 func TakeScreenshot() (string, error) {
-	tempFilePath := filepath.Join(os.TempDir(), fmt.Sprintf("screenshot_%d.png", time.Now().Unix()))
+	tempFilePath := filepath.Join(os.TempDir(), fmt.Sprintf("screenshot_%d.jpg", time.Now().Unix()))
 
 	cmds := []*exec.Cmd{
 		exec.Command("gnome-screenshot", "-f", tempFilePath),
@@ -106,3 +78,20 @@ func ResolveStorageFilePath(pathParam string) (string, bool, error) {
 
 	return fullPath, true, nil
 }
+
+func ShowHTML(html string) error {
+	ResetView()
+
+	var templateBuffer bytes.Buffer
+	_ = htmlTemplate(html).Render(context.Background(), &templateBuffer)
+	err := browser.Browser.OpenHTML(templateBuffer.String())
+
+	return err
+}
+
+func ResetView() {
+	err := fileHandler.closeRunningProgram()
+	if err != nil {
+		slog.Error("Failed to close running program", "error", err)
+	}
+}

display/pkg/main.templ

@@ -0,0 +1,148 @@
+package pkg
+
+templ basicTemplate() {
+	<!DOCTYPE html>
+	<html lang="en">
+		<head>
+			<meta charset="UTF-8"/>
+			<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
+			<title>PLG MuDiCS Display</title>
+			<style>
+          		:root {
+         			--background-color: black;
+         			--foreground-color: oklch(92.3% 0.003 48.717);
+         			--font-size: 5rem;
+          		}
+
+          		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';
+         			cursor: none;
+          		}
+
+          		video,
+          		img {
+         			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>
+		</head>
+		<bod>
+			{ children... }
+		</bod>
+	</html>
+}
+
+templ videoTemplate(path string) {
+	@basicTemplate() {
+		<video autoplay>
+			<source src={ "file://" + path } type="video/mp4"/>
+		</video>
+	}
+}
+
+templ htmlTemplate(html string) {
+	@basicTemplate() {
+		@templ.Raw(html)
+	}
+}
+
+templ imageTemplate(path string) {
+	@basicTemplate() {
+		<img src={ "file://" + path }/>
+	}
+}
+
+templ deviceInfoTemplate(ip string, mac string, showQR bool) {
+	@basicTemplate() {
+		<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 }
+				<span style="text-transform: uppercase;">{ mac }</span>
+			</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>
+	}
+}
+
+templ startScreenTemplate(splashScreenHtml string, ip string, mac string, qrPath string) {
+	@basicTemplate() {
+		<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 }
+				<span style="text-transform: uppercase;">{ mac }</span>
+			</div>
+			if qrPath != "" {
+				<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={ "file://" + qrPath }
+							alt="QR-Code"
+						/>
+					</div>
+				</div>
+			}
+		</div>
+		@templ.Raw(splashScreenHtml)
+		<style>
+			:root {
+    			--splash-bg: transparent !important;
+    			--splash-fade-out-state: paused !important;
+                --background-color: oklch(21.6% 0.006 56.043);
+			}
+		</style>
+	}
+}

display/pkg/open_file.go

@@ -0,0 +1,112 @@
+package pkg
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"log/slog"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"plg-mudics/shared"
+	"syscall"
+
+	"github.com/gabriel-vasile/mimetype"
+
+	"plg-mudics/display/browser"
+)
+
+var fileHandler fileHandlerType = fileHandlerType{}
+
+type fileHandlerType struct {
+	runningProgram *exec.Cmd
+}
+
+func OpenFile(path string) error {
+	ResetView()
+
+	mType, err := mimetype.DetectFile(path)
+	if err != nil {
+		return fmt.Errorf("detect mime type of file %q: %w", path, err)
+	}
+
+	switch mType.String() {
+	case "video/mp4":
+		var templateBuffer bytes.Buffer
+		_ = videoTemplate(path).Render(context.Background(), &templateBuffer)
+		err = browser.Browser.OpenHTML(templateBuffer.String())
+	case "image/jpeg", "image/png", "image/gif":
+		var templateBuffer bytes.Buffer
+		_ = imageTemplate(path).Render(context.Background(), &templateBuffer)
+		err = browser.Browser.OpenHTML(templateBuffer.String())
+	case "application/pdf":
+		err = browser.Browser.OpenPDF(path)
+	case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
+		err = fileHandler.openFileWithApp(path)
+	default:
+		return fmt.Errorf("unsupported file type: %s", mType.String())
+	}
+
+	if err != nil {
+		return fmt.Errorf("failed to open file: %w", err)
+	}
+
+	return nil
+}
+
+func (fh *fileHandlerType) openFileWithApp(path string) error {
+	var err error
+
+	mType, err := mimetype.DetectFile(path)
+	if err != nil {
+		return fmt.Errorf("failed to detect mime type: %w", err)
+	}
+
+	switch mType.String() {
+	case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
+		err = fh.openLibreoffice(path)
+		if err != nil {
+			return err
+		}
+	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 *fileHandlerType) openLibreoffice(path string) error {
+	// yes, we need this weird workaround to delete lock files since libreoffice
+	// doesn't expose an option to ignore them or prevent their creation
+	// the --view argument for some reason doesn't work with --show
+	parent := filepath.Dir(path)
+	cmd := exec.Command("find", parent, "-name", ".~lock*", "-type", "f", "-delete")
+	result := shared.RunShellCommand(cmd)
+	if result.ExitCode != 0 {
+		slog.Warn("could not remove lock files", "path", parent, "stderr", result.Stderr, "exitCode", result.ExitCode)
+	}
+
+	tempDirPath, err := os.MkdirTemp("", "plg-mudics-program-profile-")
+	if err != nil {
+		return fmt.Errorf("failed to create temporary profile directory: %w", err)
+	}
+	fh.runningProgram = exec.Command("soffice", "--show", path, "--nologo", "--norestore", fmt.Sprintf("-env:UserInstallation=file://%s", tempDirPath))
+
+	return nil
+}
+
+func (fh *fileHandlerType) closeRunningProgram() error {
+	if fh.runningProgram == nil {
+		return nil
+	}
+	err := syscall.Kill(-fh.runningProgram.Process.Pid, syscall.SIGTERM)
+	fh.runningProgram = nil
+	return err
+}

display/pkg/start_screen.go

@@ -0,0 +1,120 @@
+package pkg
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"image/color"
+	"net"
+	"os"
+	"plg-mudics/shared"
+	"strings"
+
+	"plg-mudics/display/browser"
+
+	"github.com/skip2/go-qrcode"
+)
+
+func OpenStartScreen() error {
+	var err error
+
+	raw := shared.RawSplashScreenTemplate
+	html := strings.ReplaceAll(raw, "%%APP-VERSION%%", shared.Version)
+
+	ip, err := getDeviceIp()
+	if err != nil {
+		return fmt.Errorf("get device IP: %w", err)
+	}
+	mac, err := getDeviceMac()
+	if err != nil {
+		return fmt.Errorf("get device MAC address: %w", err)
+	}
+
+	port := 8080
+	showQrCode := !isPortFree(port)
+	qrCodePath := ""
+	if showQrCode {
+		qrCodePath, err = generateQRCode(fmt.Sprintf("http://%s:%d", ip, port))
+		if err != nil {
+			return fmt.Errorf("generate QR code: %w", err)
+		}
+	}
+
+	var templateBuffer bytes.Buffer
+	_ = startScreenTemplate(html, ip, mac, qrCodePath).Render(context.Background(), &templateBuffer)
+	err = browser.Browser.OpenHTML(templateBuffer.String())
+	if err != nil {
+		return fmt.Errorf("open start screen in browser: %w", err)
+	}
+	return nil
+}
+
+func getDeviceIp() (string, error) {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return "", fmt.Errorf("failed to get network interfaces: %w", err)
+	}
+	for _, addr := range addrs {
+		ipNet, ok := addr.(*net.IPNet)
+		if ok && !ipNet.IP.IsLoopback() && ipNet.IP.To4() != nil {
+			return ipNet.IP.String(), nil
+		}
+	}
+
+	return "", fmt.Errorf("no suitable IP address found")
+}
+
+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
+}
+
+func getDeviceMac() (string, error) {
+	interfaces, err := net.Interfaces()
+	if err != nil {
+		return "", fmt.Errorf("failed to get network interfaces: %w", err)
+	}
+
+	for _, interf := range interfaces {
+		mac := interf.HardwareAddr.String()
+		if mac != "" {
+			return mac, nil
+		}
+	}
+
+	return "", fmt.Errorf("no suitable MAC address found")
+}
+
+func generateQRCode(data string) (string, error) {
+	qr, err := qrcode.New(data, qrcode.Medium)
+	if err != nil {
+		return "", fmt.Errorf("could not generate qr code: %w", err)
+	}
+
+	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 "", fmt.Errorf("could not render qr code: %w", err)
+	}
+
+	file, err := os.CreateTemp("", "mudics-qr-code-*.png")
+	if err != nil {
+		return "", fmt.Errorf("could not save qr code: %w", err)
+	}
+	defer func() { _ = file.Close() }()
+
+	_, err = file.Write(png)
+	if err != nil {
+		return "", fmt.Errorf("could not write qr code to file: %w", err)
+	}
+
+	return file.Name(), nil
+}

display/requests/openWebsite.bru

@@ -0,0 +1,22 @@
+meta {
+  name: openWebsite
+  type: http
+  seq: 10
+}
+
+patch {
+  url: 127.0.0.1:1323/api/openWebsite
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "url": "https://example.com"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

display/web/embed.go

@@ -1,12 +0,0 @@
-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

@@ -1,53 +1,27 @@
 package web
 
 import (
-	"bytes"
-	"context"
 	"errors"
 	"fmt"
-	"image/color"
 	"io"
 	"log/slog"
-	"net"
 	"net/http"
 	"net/url"
 	"os"
 	"os/exec"
 	"path/filepath"
 	shared "plg-mudics/shared"
-	"strings"
 
-	"github.com/gabriel-vasile/mimetype"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
-	"github.com/skip2/go-qrcode"
 
+	"plg-mudics/display/browser"
 	"plg-mudics/display/pkg"
 )
 
-var version string
-var sseConnection chan string
-
-func StartWebServer(v string, port string) {
-	version = v
-
+func StartWebServer(port string) {
 	e := echo.New()
 
-	e.GET("/", indexRoute)
-	e.GET("/sse", sseRoute)
-	e.GET("/splash", func(ctx echo.Context) error {
-		html := shared.SplashScreenTemplate
-		html = strings.ReplaceAll(html, "%%APP-VERSION%%", version)
-		return ctx.HTML(http.StatusOK, html)
-	})
-	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())
 	apiGroup.GET("/ping", pingRoute)
@@ -55,6 +29,7 @@ func StartWebServer(v string, port string) {
 	apiGroup.PATCH("/keyboardInput", keyboardInputRoute)
 	apiGroup.PATCH("/showHTML", showHTMLRoute)
 	apiGroup.PATCH("/takeScreenshot", takeScreenshotRoute)
+	apiGroup.PATCH("/openWebsite", openWebsiteRoute)
 
 	fileGroup := apiGroup.Group("/file")
 	fileGroup.Use(extractFilePathMiddleware)
@@ -69,85 +44,6 @@ func StartWebServer(v string, port string) {
 	}
 }
 
-func indexRoute(ctx echo.Context) error {
-	return indexTemplate().Render(ctx.Request().Context(), ctx.Response().Writer)
-}
-
-func sseRoute(ctx echo.Context) error {
-	slog.Info("SSE client connected")
-
-	w := ctx.Response()
-	w.Header().Set("Content-Type", "text/event-stream")
-	w.Header().Set("Cache-Control", "no-cache")
-	w.Header().Set("Connection", "keep-alive")
-	w.WriteHeader(http.StatusOK)
-	flusher, _ := w.Writer.(http.Flusher)
-
-	sseConnection = make(chan string)
-
-	// init display
-	ip, err := pkg.GetDeviceIp()
-	if err != nil {
-		slog.Error("Failed to get device IP address", "error", err)
-	}
-	mac, err := pkg.GetDeviceMac()
-	if err != nil {
-		slog.Error("Failed to get device MAC address", "error", err)
-	}
-	showQR := !isPortFree(8080)
-	var status bytes.Buffer
-	deviceInfoTemplate(ip, mac, showQR).Render(context.Background(), &status)
-	connectedEvent := Event{
-		Data: status.Bytes(),
-	}
-	connectedEvent.MarshalTo(w)
-	flusher.Flush()
-
-	for {
-		select {
-		case <-ctx.Request().Context().Done():
-			slog.Info("SSE client disconnected")
-			sseConnection = nil
-			return nil
-
-		case event := <-sseConnection:
-			rawEvent := Event{
-				Event: []byte(""),
-				Data:  []byte(event),
-			}
-
-			if err := rawEvent.MarshalTo(w); err != nil {
-				slog.Warn("Error writing to client", "error", err)
-				return err
-			}
-			flusher.Flush()
-		}
-	}
-}
-
-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 {
 		raw := ctx.Param("path")
@@ -266,7 +162,10 @@ func uploadFileRoute(ctx echo.Context) error {
 			slog.Error("Failed to close file", "file", fullPath, "error", fileCloseErr)
 		}
 		if err != nil {
-			os.Remove(fullPath)
+			err = os.Remove(fullPath)
+			if err != nil {
+				slog.Warn("could not remove broken file", "file", fullPath, "error", err)
+			}
 		}
 	}()
 
@@ -295,14 +194,7 @@ func downloadFileRoute(ctx echo.Context) error {
 
 	slog.Info("Serving file for download", "path", fullPath)
 
-	file, err := os.Open(fullPath)
-	if err != nil {
-		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()
-
-	return ctx.Stream(http.StatusOK, "application/octet-stream", file)
+	return ctx.Attachment(fullPath, filepath.Base(fullPath))
 }
 
 func openFileRoute(ctx echo.Context) error {
@@ -315,38 +207,7 @@ func openFileRoute(ctx echo.Context) error {
 		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
-	if sseConnection == nil {
-		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Cant connect to display browser client"})
-	}
-
-	err = resetView()
-	if err != nil {
-		slog.Error("Failed to reset view", "error", err)
-	}
-
-	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 "image/jpeg", "image/png", "image/gif":
-		var templateBuffer bytes.Buffer
-		imageTemplate(pathParam).Render(context.Background(), &templateBuffer)
-		sseConnection <- templateBuffer.String()
-	case "application/pdf", "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
-		err = pkg.FileHandler.OpenFile(fullPath)
-	default:
-		slog.Info("Unsupported file type", "type", mType)
-		return ctx.JSON(http.StatusUnsupportedMediaType, shared.ErrorResponse{Description: "Unsupported file type: " + mType.String()})
-	}
-
+	err = pkg.OpenFile(fullPath)
 	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"})
@@ -365,13 +226,12 @@ func showHTMLRoute(ctx echo.Context) error {
 		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
-	err := resetView()
+	err := pkg.ShowHTML(request.HTML)
 	if err != nil {
-		slog.Error("Failed to reset view", "error", err)
+		slog.Error("Failed to open html", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open html"})
 	}
 
-	sseConnection <- request.HTML
-
 	slog.Info("HTML content sent to client")
 	return ctx.JSON(http.StatusOK, struct{}{})
 }
@@ -379,7 +239,7 @@ func showHTMLRoute(ctx echo.Context) error {
 func pingRoute(ctx echo.Context) error {
 	return ctx.JSON(http.StatusOK, struct {
 		Version string `json:"version"`
-	}{Version: version})
+	}{Version: shared.Version})
 }
 
 func takeScreenshotRoute(ctx echo.Context) error {
@@ -422,24 +282,24 @@ func previewRoute(ctx echo.Context) error {
 	return ctx.File(outputFilePath)
 }
 
-// Reset previous file views so they dont collide with the new one
-func resetView() error {
-	err := pkg.FileHandler.CloseRunningProgram()
-	if err != nil {
-		return fmt.Errorf("failed to close running program: %w", err)
+func openWebsiteRoute(ctx echo.Context) error {
+	var err error
+
+	var request struct {
+		URL string `json:"url"`
+	}
+	if err := ctx.Bind(&request); err != nil {
+		slog.Error("Failed to parse website input", "error", err)
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
-	sseConnection <- ""
+	slog.Info("Opening url")
 
-	return nil
-}
-
-func isPortFree(port int) bool {
-	addr := fmt.Sprintf("127.0.0.1:%d", port)
-	l, err := net.Listen("tcp", addr)
+	err = browser.Browser.OpenPage(request.URL)
 	if err != nil {
-		return false
+		slog.Error("Failed to open website", "url", request.URL, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open website"})
 	}
-	_ = l.Close()
-	return true
+
+	return ctx.JSON(http.StatusOK, struct{}{})
 }

display/web/main.templ

@@ -1,123 +0,0 @@
-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 MuDiCS 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;
-		}
-
-		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';
-			cursor: none;
-		}
-
-		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();
-					}
-				}
-			}
-		});
-	</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>
-}
-
-templ imageTemplate(path string) {
-	<img src={ "/api/file/" + path }/>
-}
-
-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 }
-			<span style="text-transform: uppercase;">{ mac }</span>
-		</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/sse.go

@@ -1,75 +0,0 @@
-package web
-
-import (
-	"bytes"
-	"fmt"
-	"io"
-)
-
-// Event represents Server-Sent Event.
-// SSE explanation: https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#event_stream_format
-type Event struct {
-	// ID is used to set the EventSource object's last event ID value.
-	ID []byte
-	// Data field is for the message. When the EventSource receives multiple consecutive lines
-	// that begin with data:, it concatenates them, inserting a newline character between each one.
-	// Trailing newlines are removed.
-	Data []byte
-	// Event is a string identifying the type of event described. If this is specified, an event
-	// will be dispatched on the browser to the listener for the specified event name; the website
-	// source code should use addEventListener() to listen for named events. The onmessage handler
-	// is called if no event name is specified for a message.
-	Event []byte
-	// Retry is the reconnection time. If the connection to the server is lost, the browser will
-	// wait for the specified time before attempting to reconnect. This must be an integer, specifying
-	// the reconnection time in milliseconds. If a non-integer value is specified, the field is ignored.
-	Retry []byte
-	// Comment line can be used to prevent connections from timing out; a server can send a comment
-	// periodically to keep the connection alive.
-	Comment []byte
-}
-
-// MarshalTo marshals Event to given Writer
-func (ev *Event) MarshalTo(w io.Writer) error {
-	// Marshalling part is taken from: https://github.com/r3labs/sse/blob/c6d5381ee3ca63828b321c16baa008fd6c0b4564/http.go#L16
-	if len(ev.Data) == 0 && len(ev.Comment) == 0 {
-		return nil
-	}
-
-	if len(ev.Data) > 0 {
-		if _, err := fmt.Fprintf(w, "id: %s\n", ev.ID); err != nil {
-			return err
-		}
-
-		sd := bytes.Split(ev.Data, []byte("\n"))
-		for i := range sd {
-			if _, err := fmt.Fprintf(w, "data: %s\n", sd[i]); err != nil {
-				return err
-			}
-		}
-
-		if len(ev.Event) > 0 {
-			if _, err := fmt.Fprintf(w, "event: %s\n", ev.Event); err != nil {
-				return err
-			}
-		}
-
-		if len(ev.Retry) > 0 {
-			if _, err := fmt.Fprintf(w, "retry: %s\n", ev.Retry); err != nil {
-				return err
-			}
-		}
-	}
-
-	if len(ev.Comment) > 0 {
-		if _, err := fmt.Fprintf(w, ": %s\n", ev.Comment); err != nil {
-			return err
-		}
-	}
-
-	if _, err := fmt.Fprint(w, "\n"); err != nil {
-		return err
-	}
-
-	return nil
-}

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

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

flake.nix

@@ -11,20 +11,13 @@
   in {
     devShells."x86_64-linux".default = pkgs.mkShell {
       packages = with pkgs; [
+        gcc
         libreoffice
         ungoogled-chromium
-        xreader
         imagemagick
         ffmpeg
-        ghostscript
         gnome-screenshot
-
-        playwright-driver.browsers
       ];
-
-      PLAYWRIGHT_BROWSERS_PATH = pkgs.playwright-driver.browsers;
-      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = "true";
-      PW_DISABLE_TS_ESM = "true";
     };
   };
 }

go.work.sum

@@ -1,15 +1,25 @@
 github.com/a-h/htmlformat v0.0.0-20250209131833-673be874c677/go.mod h1:FMIm5afKmEfarNbIXOaPHFY8X7fo+fRQB6I9MPG2nB0=
+github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80 h1:6Yzfa6GP0rIo/kULo2bwGEkFvCePZ3qHDDTC3/J9Swo=
+github.com/ledongthuc/pdf v0.0.0-20220302134840-0c2507a12d80/go.mod h1:imJHygn/1yfhB7XSJJKlFZKl/J+dCPAknuiaGOshXAs=
+github.com/mdlayher/raw v0.0.0-20190313224157-43dbcdd7739d h1:rjAS0af7FIYCScTtEU5KjIldC6qVaEScUJhABHC+ccM=
+github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde h1:x0TT0RDC7UhAVbbWWBzr41ElhJx5tXPWkIHA2HWPRuw=
+github.com/orisano/pixelmatch v0.0.0-20220722002657-fb0b55479cde/go.mod h1:nZgzbfBr3hhjoZnS66nKrHmduYNpc34ny7RK4z5/HM0=
+github.com/rs/cors v1.11.0 h1:0B9GE/r9Bc2UxRMMtymBkHTenPkHDv0CW4Y98GBY+po=
 github.com/rs/cors v1.11.0/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/yuin/goldmark v1.4.13 h1:fVcFKWvrslecOb/tg+Cc05dkeYx540o0FuFt3nUVDoE=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
 golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
 golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
 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/telemetry v0.0.0-20251111182119-bc8e575c7b54 h1:E2/AqCUMZGgd73TQkxUMcMla25GB9i/5HOdLr+uH7Vo=
 golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54/go.mod h1:hKdjCMrbv9skySur+Nek8Hd0uJ0GuxJIoIX2payrIdQ=
 golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=
 golang.org/x/term v0.33.0/go.mod h1:s18+ql9tYWp1IfpV9DmCtQDDSRBUjKaw9M1eAv5UeF0=
+golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
 golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
 golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

nixos/configuration.nix

@@ -92,20 +92,19 @@
     nushell
     unzip
     iputils
-    xreader
     tree
     jq
 
     # Libraries
     imagemagick
     ffmpeg
-    ghostscript
   ];
 
   home-manager.users.mudics = {
     xfconf.settings = {
       xfce4-power-manager."xfce4-power-manager/dpms-enabled" = false;
       xfce4-screensaver."saver/enabled" = false;
+      displays.Notify = 0; # disable popup when connecting new display
     };
 
     home.stateVersion = "25.05";

shared/embed.go

@@ -6,7 +6,7 @@ import (
 )
 
 //go:embed splash_screen.html
-var SplashScreenTemplate string
+var RawSplashScreenTemplate string
 
 //go:embed version.txt
 var versionNotTrimmed string

shared/splash_screen.html

@@ -170,15 +170,8 @@
 
   <span id="version-label" aria-label="Version">%%APP-VERSION%%</span>
 
-  <div class="fade-in">
-    <div
-      class="cursor-x"
-      style="
-        position: absolute;
-        left: calc(50cqw + var(--mouse-start-x));
-        top: calc(50cqh + var(--mouse-start-y));
-      "
-    >
+  <div class="fade-in cursor-layer" aria-hidden="true">
+    <div class="cursor-x">
       <svg class="cursor-y" width="50" height="50" viewBox="0 0 24 24">
         <g
           stroke="#ffffff"
@@ -223,8 +216,6 @@
 
     --mouse-size: 50px;
     --mouse-bounce-delay: 5s;
-    --mouse-start-x: calc((35 * 100vw) / 1920);
-    --mouse-start-y: calc((60 * 100vh) / 1080);
 
     --dur-x: 16s;
     --dur-y: 9s;
@@ -254,8 +245,12 @@
     align-items: center;
     justify-content: center;
     z-index: 9999;
-    height: 100vh;
-    width: 100vw;
+
+    width: 100dvw;
+    height: 100dvh;
+    overflow: hidden;
+
+    container: splash / size;
 
     animation-name: splash-fade;
     animation-duration: 1s;
@@ -342,7 +337,23 @@
     animation: start-button-hover-press 1s ease-in-out 450ms forwards;
   }
 
+  .cursor-layer {
+    position: absolute;
+    inset: 0;
+    overflow: hidden;
+    pointer-events: none;
+
+    --mouse-start-x: calc(100cqw * 35 / 1920);
+    --mouse-start-y: calc(100cqh * 60 / 1080);
+  }
+
   .cursor-x {
+    position: absolute;
+    left: calc(50cqw + var(--mouse-start-x));
+    top: calc(50cqh + var(--mouse-start-y));
+    width: var(--mouse-size);
+    height: var(--mouse-size);
+
     animation-name: move-mouse, mouse-bounceX;
     animation-duration: 1s, var(--dur-x);
     animation-delay: 0s, var(--mouse-bounce-delay);
@@ -354,6 +365,10 @@
   }
 
   .cursor-y {
+    width: 100%;
+    height: 100%;
+    display: block;
+
     animation-name: mouse-bounceY;
     animation-duration: var(--dur-y);
     animation-delay: var(--mouse-bounce-delay);
@@ -364,6 +379,10 @@
     will-change: transform;
   }
 
+  .cursor-y * {
+    vector-effect: non-scaling-stroke;
+  }
+
   @keyframes fade-in {
     to {
       opacity: 1;
@@ -383,7 +402,7 @@
       transform: translateX(0px);
     }
   }
-
+  
   @keyframes mouse-bounceX {
     0% {
       transform: translateX(0);
@@ -398,6 +417,10 @@
         calc(50cqw - var(--mouse-size) - var(--mouse-start-x))
       );
     }
+
+    100% {
+      transform: translateX(0);
+    }
   }
 
   @keyframes mouse-bounceY {
@@ -414,6 +437,10 @@
         calc(50cqh - var(--mouse-size) - var(--mouse-start-y))
       );
     }
+
+    100% {
+      transform: translateY(0);
+    }
   }
 
   @keyframes start-button-hover-press {

shared/supported_file_types.json

@@ -1,34 +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"
-    }
-}
+  ".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": ".odp"
+  },
+  ".pdf": {
+    "display_name": "PDF",
+    "mime_type": "application/pdf"
+  }
+}

shared/version.txt

@@ -1 +1 @@
-v0.0.18
+v0.1.5