unlockDialog: Use inheritance instead of composition

The screen shield creates the unlock dialog based on the session mode.

However since commit 0c0d76f7d6990 turned LoginDialog into an actor
subclass (while UnlockDialog kept using the delegate pattern), it is
no longer possible to handle both objects the same way without warnings.

Allow this again by turning UnlockDialog into an actor subclass as well.

https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/736

diff --git a/js/ui/unlockDialog.js b/js/ui/unlockDialog.js
index 08dbfdd068c8ae3e366458b56b06e0fc969c9ea7..5af1b4823f8a1d2890705cead036aa1f5ac687b2 100644 (file)
--- a/js/ui/unlockDialog.js
+++ b/js/ui/unlockDialog.js
@@ -2,8 +2,7 @@
 /* exported UnlockDialog */
 
 const { AccountsService, Atk, Clutter,
-        Gdm, Gio, GLib, Meta, Shell, St } = imports.gi;
-const Signals = imports.signals;
+        Gdm, Gio, GLib, GObject, Meta, Shell, St } = imports.gi;
 
 const Layout = imports.ui.layout;
 const Main = imports.ui.main;
@@ -13,15 +12,19 @@ const AuthPrompt = imports.gdm.authPrompt;
 // The timeout before going back automatically to the lock screen (in seconds)
 const IDLE_TIMEOUT = 2 * 60;
 
-var UnlockDialog = class {
-    constructor(parentActor) {
-        this.actor = new St.Widget({ accessible_role: Atk.Role.WINDOW,
-                                     style_class: 'login-dialog',
-                                     layout_manager: new Clutter.BoxLayout(),
-                                     visible: false });
+var UnlockDialog = GObject.registerClass({
+    Signals: { 'failed': {} },
+}, class UnlockDialog extends St.Widget {
+    _init(parentActor) {
+        super._init({
+            accessible_role: Atk.Role.WINDOW,
+            style_class: 'login-dialog',
+            layout_manager: new Clutter.BoxLayout(),
+            visible: false,
+        });
 
-        this.actor.add_constraint(new Layout.MonitorConstraint({ primary: true }));
-        parentActor.add_child(this.actor);
+        this.add_constraint(new Layout.MonitorConstraint({ primary: true }));
+        parentActor.add_child(this);
 
         this._userManager = AccountsService.UserManager.get_default();
         this._userName = GLib.get_user_name();
@@ -32,7 +35,7 @@ var UnlockDialog = class {
                                              y_align: Clutter.ActorAlign.CENTER,
                                              x_expand: true,
                                              y_expand: true });
-        this.actor.add_child(this._promptBox);
+        this.add_child(this._promptBox);
 
         this._authPrompt = new AuthPrompt.AuthPrompt(new Gdm.Client(), AuthPrompt.AuthPromptMode.UNLOCK_ONLY);
         this._authPrompt.connect('failed', this._fail.bind(this));
@@ -64,10 +67,12 @@ var UnlockDialog = class {
         this._authPrompt.reset();
         this._updateSensitivity(true);
 
-        Main.ctrlAltTabManager.addGroup(this.actor, _("Unlock Window"), 'dialog-password-symbolic');
+        Main.ctrlAltTabManager.addGroup(this, _("Unlock Window"), 'dialog-password-symbolic');
 
         this._idleMonitor = Meta.IdleMonitor.get_core();
         this._idleWatchId = this._idleMonitor.add_idle_watch(IDLE_TIMEOUT * 1000, this._escape.bind(this));
+
+        this.connect('destroy', this._onDestroy.bind(this));
     }
 
     _updateSensitivity(sensitive) {
@@ -106,9 +111,8 @@ var UnlockDialog = class {
         this._authPrompt.cancel();
     }
 
-    destroy() {
+    _onDestroy() {
         this.popModal();
-        this.actor.destroy();
 
         if (this._idleWatchId) {
             this._idleMonitor.remove_watch(this._idleWatchId);
@@ -131,13 +135,16 @@ var UnlockDialog = class {
     }
 
     open(timestamp) {
-        this.actor.show();
+        this.show();
 
         if (this._isModal)
             return true;
 
-        if (!Main.pushModal(this.actor, { timestamp: timestamp,
-                                          actionMode: Shell.ActionMode.UNLOCK_SCREEN }))
+        let modalParams = {
+            timestamp,
+            actionMode: Shell.ActionMode.UNLOCK_SCREEN,
+        };
+        if (!Main.pushModal(this, modalParams))
             return false;
 
         this._isModal = true;
@@ -147,9 +154,8 @@ var UnlockDialog = class {
 
     popModal(timestamp) {
         if (this._isModal) {
-            Main.popModal(this.actor, timestamp);
+            Main.popModal(this, timestamp);
             this._isModal = false;
         }
     }
-};
-Signals.addSignalMethods(UnlockDialog.prototype);
+});