wallpapers: add fallback magick thumbnailer script

.config/quickshell/ii/scripts/thumbnails/generate-thumbnails-magick.sh

@@ -0,0 +1,122 @@
+#!/usr/bin/env bash
+
+# Generate thumbnails for files using ImageMagick, following Freedesktop spec
+# Usage:
+#   ./generate-thumbnails-magick.sh --file <path>
+#   ./generate-thumbnails-magick.sh --directory <path>
+
+set -e
+
+# Thumbnail sizes mapping
+get_thumbnail_size() {
+    case "$1" in
+        normal) echo 128 ;;
+        large) echo 256 ;;
+        x-large) echo 512 ;;
+        xx-large) echo 1024 ;;
+        *) echo 128 ;;
+    esac
+}
+
+usage() {
+    echo "Usage: $0 --file <path> | --directory <path>"
+    exit 1
+}
+
+md5() {
+    # Calculate md5 hash of the file's absolute path
+    echo -n "$1" | md5sum | awk '{print $1}'
+}
+
+urlencode() {
+    # Percent-encode a string for use in a URI, but do not encode slashes
+    local str="$1"
+    local encoded=""
+    local c
+    for ((i=0; i<${#str}; i++)); do
+        c="${str:$i:1}"
+        case "$c" in
+            [a-zA-Z0-9.~_-]|/) encoded+="$c" ;;
+            *) printf -v hex '%%%02X' "'${c}'"; encoded+="$hex" ;;
+        esac
+    done
+    echo "$encoded"
+}
+
+generate_thumbnail() {
+    local src="$1"
+    local abs_path
+    abs_path="$(realpath "$src")"
+    local encoded_path
+    encoded_path="$(urlencode "$abs_path")"
+    local uri
+    uri="file://$encoded_path"
+    local hash
+    hash="$(md5 "$uri")"
+    local out="$CACHE_DIR/$hash.png"
+    mkdir -p "$CACHE_DIR"
+    if [ -f "$out" ]; then
+        return
+    fi
+    magick "$abs_path" -resize ${THUMBNAIL_SIZE}x${THUMBNAIL_SIZE} "$out"
+}
+
+# Parse arguments
+SIZE_NAME="normal"
+MODE=""
+TARGET=""
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        --file|-f)
+            MODE="file"
+            TARGET="$2"
+            shift 2
+            ;;
+        --directory|-d)
+            MODE="dir"
+            TARGET="$2"
+            shift 2
+            ;;
+        --size|-s)
+            SIZE_NAME="$2"
+            shift 2
+            ;;
+        *)
+            usage
+            ;;
+    esac
+    # Only one mode allowed
+    [[ -n "$MODE" ]] && break
+done
+
+THUMBNAIL_SIZE="$(get_thumbnail_size "$SIZE_NAME")"
+CACHE_DIR="$HOME/.cache/thumbnails/$SIZE_NAME"
+
+if [ -z "$MODE" ] || [ -z "$TARGET" ]; then
+    usage
+fi
+
+case "$MODE" in
+    file)
+        if [ ! -f "$TARGET" ]; then
+            echo "File not found: $TARGET"
+            exit 2
+        fi
+        generate_thumbnail "$TARGET"
+        ;;
+    dir)
+        if [ ! -d "$TARGET" ]; then
+            echo "Directory not found: $TARGET"
+            exit 2
+        fi
+        for f in "$TARGET"/*; do
+            [ -f "$f" ] || continue
+            generate_thumbnail "$f" &
+        done
+        wait
+        ;;
+    *)
+        usage
+        ;;
+esac
+

.config/quickshell/ii/services/Wallpapers.qml

@@ -15,6 +15,7 @@ Singleton {
     id: root
 
     property string thumbgenScriptPath: `${FileUtils.trimFileProtocol(Directories.scriptPath)}/thumbnails/thumbgen.py`
+    property string generateThumbnailsMagicScriptPath: `${FileUtils.trimFileProtocol(Directories.scriptPath)}/thumbnails/generate-thumbnails-magick.sh`
     property string directory: FileUtils.trimFileProtocol(`${Directories.pictures}/Wallpapers`)
     property alias folderModel: folderModel // Expose for direct binding when needed
     property string searchQuery: ""
@@ -124,9 +125,8 @@ Singleton {
         thumbgenProc.directory = root.directory
         thumbgenProc.running = false
         thumbgenProc.command = [
-            thumbgenScriptPath,
+            "bash", "-c",
-            "--size", size,
+            `${thumbgenScriptPath} --size ${size} -d ${root.directory} || ${generateThumbnailsMagicScriptPath} --size ${size} -d ${root.directory}`,
-            "-d", `${root.directory}`
         ]
         thumbgenProc.running = true
     }