cachingimage: dont depend on sha256sum

quickshell/Modules/DankDash/WallpaperTab.qml

@@ -401,7 +401,7 @@ Item {
                         currentIndex = clampedIndex;
                         positionViewAtIndex(clampedIndex, GridView.Contain);
                     }
-                    enableAnimation = true;
+                    Qt.callLater(() => { enableAnimation = true; });
                 }
 
                 Connections {
@@ -465,12 +465,6 @@ Item {
                             }
                         }
 
-                        BusyIndicator {
-                            anchors.centerIn: parent
-                            running: thumbnailImage.status === Image.Loading
-                            visible: running
-                        }
-
                         StateLayer {
                             anchors.fill: parent
                             cornerRadius: parent.radius

quickshell/Widgets/CachingImage.qml

@@ -1,13 +1,24 @@
 import QtQuick
-import Quickshell.Io
 import qs.Common
 
 Image {
     id: root
 
     property string imagePath: ""
-    property string imageHash: ""
     property int maxCacheSize: 512
+
+    function djb2Hash(str) {
+        if (!str)
+            return "";
+        let hash = 5381;
+        for (let i = 0; i < str.length; i++) {
+            hash = ((hash << 5) + hash) + str.charCodeAt(i);
+            hash = hash & 0x7FFFFFFF;
+        }
+        return hash.toString(16).padStart(8, '0');
+    }
+
+    readonly property string imageHash: imagePath ? djb2Hash(imagePath) : ""
     readonly property string cachePath: imageHash ? `${Paths.stringify(Paths.imagecache)}/${imageHash}@${maxCacheSize}x${maxCacheSize}.png` : ""
 
     asynchronous: true
@@ -15,43 +26,27 @@ Image {
     sourceSize.width: maxCacheSize
     sourceSize.height: maxCacheSize
     smooth: true
+
     onImagePathChanged: {
         if (!imagePath) {
-            source = ""
-            imageHash = ""
-            return
+            source = "";
+            return;
         }
-        hashProcess.command = ["sha256sum", Paths.strip(imagePath)]
-        hashProcess.running = true
+        Paths.mkdir(Paths.imagecache);
+        source = cachePath || imagePath;
     }
-    onCachePathChanged: {
-        if (!imageHash || !cachePath)
-            return
 
-        Paths.mkdir(Paths.imagecache)
-        source = cachePath
-    }
     onStatusChanged: {
         if (source == cachePath && status === Image.Error) {
-            source = imagePath
-            return
+            source = imagePath;
+            return;
         }
-        if (source != imagePath || status !== Image.Ready || !imageHash || !cachePath)
-            return
-
-        Paths.mkdir(Paths.imagecache)
-        const grabPath = cachePath
-        if (visible && width > 0 && height > 0 && Window.window && Window.window.visible)
-            grabToImage(res => {
-                            return res.saveToFile(grabPath)
-                        })
-    }
-
-    Process {
-        id: hashProcess
-
-        stdout: StdioCollector {
-            onStreamFinished: root.imageHash = text.split(" ")[0]
+        if (source != imagePath || status !== Image.Ready || !cachePath)
+            return;
+        Paths.mkdir(Paths.imagecache);
+        const grabPath = cachePath;
+        if (visible && width > 0 && height > 0 && Window.window?.visible) {
+            grabToImage(res => res.saveToFile(grabPath));
         }
     }
 }