feat: initial video wallpaper implementation

Helpers/Wallpapers.qml

@@ -18,6 +18,8 @@ Searcher {
 	property string actualCurrent: WallpaperPath.currentWallpaperPath
 	property alias crops: adapter.monitorCrops
 	readonly property string current: showPreview ? previewPath : actualCurrent
+	readonly property string currentThumbnail: thumbnailFor(current)
+	readonly property bool currentIsVideo: isVideoPath(current)
 	property alias monitorCrops: monitorCrops
 	property bool pendingPreviewClear
 	property bool previewColorLock
@@ -32,6 +34,29 @@ Searcher {
 		return category;
 	}
 
+	readonly property var videoExts: ["mp4", "mkv", "webm", "avi", "mov", "wmv", "flv", "m4v", "mpg", "mpeg", "3gp", "ogv", "ts", "vob"]
+
+	function isVideoPath(path: string): bool {
+		if (!path)
+			return false;
+		const dot = path.lastIndexOf(".");
+		if (dot < 0)
+			return false;
+		return videoExts.includes(path.slice(dot + 1).toLowerCase());
+	}
+
+	function thumbnailFor(path: string): string {
+		if (!isVideoPath(path))
+			return path;
+
+		for (const entry of root.list) {
+			if (entry.path === path && entry.thumbnailPath)
+				return entry.thumbnailPath;
+		}
+
+		return path;
+	}
+
 	function getCrop(screen: string): var {
 		return root.crops[screen];
 	}
@@ -125,7 +150,7 @@ Searcher {
 	FileSystemModel {
 		id: wallpapers
 
-		filter: FileSystemModel.Images
+		filter: FileSystemModel.Media
 		path: Config.general.wallpaperPath
 		recursive: true
 	}