launcher: add "Open with..." action to file search results (#3801)

quickshell/Modals/DLauncherV2/Controller.qml

@@ -1885,7 +1885,7 @@ Item {
     }
 
     function transformFileResult(file) {
-        return Transform.transformFileResult(file, I18n.tr("Open"), I18n.tr("Open folder"), I18n.tr("Copy path"), I18n.tr("Open in terminal"));
+        return Transform.transformFileResult(file, I18n.tr("Open"), I18n.tr("Open folder"), I18n.tr("Copy path"), I18n.tr("Open in terminal"), I18n.tr("Open with") + "…");
     }
 
     function transformClipboardEntry(entry) {
@@ -2753,6 +2753,9 @@ Item {
         case "open_folder":
             openFolder(item.data.path);
             break;
+        case "open_with":
+            openWith(item.data.path);
+            break;
         case "copy_path":
             copyToClipboard(item.data.path);
             break;
@@ -2847,6 +2850,15 @@ Item {
         SessionService.openPath(path.substring(0, path.lastIndexOf("/")));
     }
 
+    function openWith(path) {
+        if (!path)
+            return;
+        // No mimeType: it would limit the picker to declared handlers, and any app must stay pickable.
+        DMSService.appPickerRequested({
+            target: path
+        });
+    }
+
     function openTerminal(path) {
         if (!path)
             return;

quickshell/Modals/DLauncherV2/ItemTransformers.js

@@ -215,7 +215,7 @@ function transformClipboardItem(entry, copyLabel, pasteLabel, primaryLabel, imag
     };
 }
 
-function transformFileResult(file, openLabel, openFolderLabel, copyPathLabel, openTerminalLabel) {
+function transformFileResult(file, openLabel, openFolderLabel, copyPathLabel, openTerminalLabel, openWithLabel) {
     var filename = file.path ? file.path.split("/").pop() : "";
     var dirname = file.path ? file.path.substring(0, file.path.lastIndexOf("/")) : "";
     var isDir = file.is_dir || false;
@@ -240,6 +240,10 @@ function transformFileResult(file, openLabel, openFolderLabel, copyPathLabel, op
         name: copyPathLabel,
         icon: "content_copy",
         action: "copy_path"
+    }, {
+        name: openWithLabel,
+        icon: "apps",
+        action: "open_with"
     });
 
     return {