LockScreen: use cached wallpaper

2026-05-11 17:08:27 +08:00 · 2025-12-25 17:13:58 +01:00
parent 82951b6bcf
commit 21f10d50af
1 changed files with 80 additions and 1 deletions
@@ -114,11 +114,90 @@ Loader {
            property string currentLayout: KeyboardLayoutService.currentLayout
          }

+          // Cached wallpaper path
+          property string cachedWallpaperPath: ""
+
+          // Request preprocessed wallpaper when lock screen becomes active or dimensions change
+          Component.onCompleted: {
+            if (screen) {
+              Qt.callLater(requestCachedWallpaper);
+            }
+          }
+
+          onWidthChanged: {
+            if (screen && width > 0 && height > 0) {
+              Qt.callLater(requestCachedWallpaper);
+            }
+          }
+
+          onHeightChanged: {
+            if (screen && width > 0 && height > 0) {
+              Qt.callLater(requestCachedWallpaper);
+            }
+          }
+
+          // Listen for wallpaper changes
+          Connections {
+            target: WallpaperService
+            function onWallpaperChanged(screenName, path) {
+              if (screen && screenName === screen.name) {
+                Qt.callLater(requestCachedWallpaper);
+              }
+            }
+          }
+
+          // Listen for display scale changes
+          Connections {
+            target: CompositorService
+            function onDisplayScalesChanged() {
+              if (screen && width > 0 && height > 0) {
+                Qt.callLater(requestCachedWallpaper);
+              }
+            }
+          }
+
+          function requestCachedWallpaper() {
+            if (!screen || width <= 0 || height <= 0) {
+              return;
+            }
+
+            if (!WallpaperCacheService || !WallpaperCacheService.initialized) {
+              // Fallback to original if services not ready
+              const wallpaperPath = WallpaperService.getWallpaper(screen.name);
+              cachedWallpaperPath = wallpaperPath || "";
+              return;
+            }
+
+            const wallpaperPath = WallpaperService.getWallpaper(screen.name);
+            if (!wallpaperPath) {
+              cachedWallpaperPath = "";
+              return;
+            }
+
+            const compositorScale = CompositorService.getDisplayScale(screen.name);
+            const targetWidth = Math.round(width * compositorScale);
+            const targetHeight = Math.round(height * compositorScale);
+
+            if (targetWidth <= 0 || targetHeight <= 0) {
+              cachedWallpaperPath = wallpaperPath;
+              return;
+            }
+
+            WallpaperCacheService.getPreprocessed(wallpaperPath, screen.name, targetWidth, targetHeight, function (cachedPath, success) {
+              if (success) {
+                cachedWallpaperPath = cachedPath;
+              } else {
+                // Fallback to original
+                cachedWallpaperPath = wallpaperPath;
+              }
+            });
+          }
+
          Image {
            id: lockBgImage
            anchors.fill: parent
            fillMode: Image.PreserveAspectCrop
-            source: screen ? WallpaperService.getWallpaper(screen.name) : ""
+            source: cachedWallpaperPath || (screen ? WallpaperService.getWallpaper(screen.name) : "")
            cache: true
            smooth: true
            mipmap: false