Handle monitor change in screenshield and make it a local variable

Author: leolost2605

src/Widgets/ScreenShield.vala

@@ -141,6 +141,9 @@ namespace Gala {
 
             expand_to_screen_size ();
 
+            unowned var monitor_manager = wm.get_display ().get_context ().get_backend ().get_monitor_manager ();
+            monitor_manager.monitors_changed.connect (expand_to_screen_size);
+
             init_dbus_interfaces.begin ();
         }
 
@@ -196,7 +199,7 @@ namespace Gala {
             connected_to_buses = success;
         }
 
-        public void expand_to_screen_size () {
+        private void expand_to_screen_size () {
             int screen_width, screen_height;
             wm.get_display ().get_size (out screen_width, out screen_height);
             width = screen_width;

src/WindowManager.vala

@@ -47,9 +47,7 @@ namespace Gala {
         /**
          * {@inheritDoc}
          */
-         public Gala.ActivatableComponent workspace_view { get; protected set; }
-
-        public ScreenShield? screen_shield { get; private set; }
+        public Gala.ActivatableComponent workspace_view { get; protected set; }
 
         public PointerLocator pointer_locator { get; private set; }
 
@@ -184,9 +182,6 @@ namespace Gala {
         private void show_stage () {
             unowned Meta.Display display = get_display ();
 
-            screen_shield = new ScreenShield (this);
-            screensaver = new ScreenSaverManager (screen_shield);
-
             DBus.init (this);
             DBusAccelerator.init (display);
             MediaFeedback.init ();
@@ -200,11 +195,6 @@ namespace Gala {
 
             notification_stack = new NotificationStack (display);
 
-            // Due to a bug which enables access to the stage when using multiple monitors
-            // in the screensaver, we have to listen for changes and make sure the input area
-            // is set to NONE when we are in locked mode
-            screensaver.active_changed.connect (update_input_area);
-
             stage = display.get_stage () as Clutter.Stage;
             var background_settings = new GLib.Settings ("org.gnome.desktop.background");
             var color = background_settings.get_string ("primary-color");
@@ -309,8 +299,15 @@ namespace Gala {
             ui_group.add_child (pointer_locator);
             ui_group.add_child (new DwellClickTimer (display));
 
+            var screen_shield = new ScreenShield (this);
             ui_group.add_child (screen_shield);
 
+            screensaver = new ScreenSaverManager (screen_shield);
+            // Due to a bug which enables access to the stage when using multiple monitors
+            // in the screensaver, we have to listen for changes and make sure the input area
+            // is set to NONE when we are in locked mode
+            screensaver.active_changed.connect (update_input_area);
+
             FilterManager.init (this);
 
             /*keybindings*/
@@ -373,7 +370,7 @@ namespace Gala {
             }
 
             unowned var monitor_manager = display.get_context ().get_backend ().get_monitor_manager ();
-            monitor_manager.monitors_changed.connect (on_monitors_changed);
+            monitor_manager.monitors_changed.connect (update_ui_group_size);
 
             hot_corner_manager = new HotCornerManager (this, behavior_settings, new_behavior_settings);
             hot_corner_manager.on_configured.connect (update_input_area);
@@ -440,11 +437,6 @@ namespace Gala {
             }
         }
 
-        private void on_monitors_changed () {
-            update_ui_group_size ();
-            screen_shield.expand_to_screen_size ();
-        }
-
         [CCode (instance_pos = -1)]
         private void handle_cycle_workspaces (Meta.Display display, Meta.Window? window, Clutter.KeyEvent event,
             Meta.KeyBinding binding) {