windowAttentionHandler: remove notification fallback, re-add all

5.2 names to the pass-thru list.

- Some people don't use window lists, but 3rd-party docks instead,
so there's no need for notifications. Assume we have window lists
or a dock for attention grabbing.
- Tests seemed to indicate focus issues were resolved with the apps
originally listed as 'pass-thru', but with more users now it seems
not to entirely be the case, so just restore the entire list.

Fixes #11024
Fixes #11018

data/org.cinnamon.gschema.xml

@@ -543,7 +543,7 @@
     </key>
 
     <key type="as" name="demands-attention-passthru-wm-classes">
-      <default>['firefox']</default>
+      <default>['gnome-screenshot', 'lxterminal', 'xfce4-terminal', 'firefox', 'libreoffice', 'soffice']</default>
       <summary>WM class names to always give focus to in windowAttentionHandler.js</summary>
     </key>
     <key name="app-menu-icon-name" type="s">

js/ui/windowAttentionHandler.js

@@ -34,42 +34,21 @@ WindowAttentionHandler.prototype = {
          * user's attention (like blinking in the window list). Some windows aren't
          * directly tied to a user action, but are generated by the user's action anyhow -
          * these we make an exception for and focus them. */
-        try {
-            if (!window || window.has_focus() || window.is_skip_taskbar() || !Main.isInteresting(window)) {
-                return;
-            }
+        if (!window || window.has_focus() || window.is_skip_taskbar() || !Main.isInteresting(window)) {
+            return;
+        }
 
-            let wmclass = window.get_wm_class();
+        let wmclass = window.get_wm_class();
 
-            if (wmclass) {
-                let ignored_classes = global.settings.get_strv("demands-attention-passthru-wm-classes");
+        if (wmclass) {
+            let ignored_classes = global.settings.get_strv("demands-attention-passthru-wm-classes");
 
-                for (let i = 0; i < ignored_classes.length; i++) {
-                    if (wmclass.toLowerCase().includes(ignored_classes[i].toLowerCase())) {
-                        window.activate(global.get_current_time());
-                        return;
-                    }
+            for (let i = 0; i < ignored_classes.length; i++) {
+                if (wmclass.toLowerCase().includes(ignored_classes[i].toLowerCase())) {
+                    window.activate(global.get_current_time());
+                    return;
                 }
             }
-
-            if (AppletManager.get_role_provider_exists(Main.AppletManager.Roles.WINDOW_ATTENTION_HANDLER)) {
-                return;
-            }
-
-            let app = this._tracker.get_window_app(window);
-
-            let name = ""
-            if (app !== null) {
-                name = app.get_name();
-            }
-
-            let source = new WindowHandlerSource(app, window);
-            Main.messageTray.add(source);
-
-            let notification = new MessageTray.Notification(source, name, window.get_title());
-            source.notify(notification);
-        } catch (e) {
-            global.logError('Error showing window demanding attention', e);
         }
     }
 };