MultitaskingView: Use ShellClients state for panel hiding

Author: leolost2605

src/Widgets/MultitaskingView.vala

@@ -631,7 +631,7 @@ namespace Gala {
                 wm.background_group.hide ();
                 wm.window_group.hide ();
                 wm.top_window_group.hide ();
-                wm.shell_group.hide ();
+                //  wm.shell_group.hide ();
                 show ();
                 grab_key_focus ();
 
@@ -676,9 +676,9 @@ namespace Gala {
             }
 
             if (opening) {
-                show_docks (with_gesture, is_cancel_animation);
+                ShellClientsManager.get_instance ().add_state (MULTITASKING_VIEW, multitasking_gesture_tracker);
             } else {
-                hide_docks (with_gesture, is_cancel_animation);
+                ShellClientsManager.get_instance ().remove_state (MULTITASKING_VIEW, multitasking_gesture_tracker);
             }
 
             GestureTracker.OnEnd on_animation_end = (percentage, completions) => {
@@ -718,107 +718,6 @@ namespace Gala {
             }
         }
 
-        private void show_docks (bool with_gesture, bool is_cancel_animation) {
-            unowned GLib.List<Meta.WindowActor> window_actors = display.get_window_actors ();
-            foreach (unowned Meta.WindowActor actor in window_actors) {
-                const int MAX_OFFSET = 200;
-
-                if (actor.is_destroyed () || !actor.visible || actor.translation_y != 0) {
-                    continue;
-                }
-
-                unowned Meta.Window window = actor.get_meta_window ();
-                var monitor = window.get_monitor ();
-
-                if (window.window_type != Meta.WindowType.DOCK) {
-                    continue;
-                }
-
-                if (NotificationStack.is_notification (window)) {
-                    continue;
-                }
-
-                if (display.get_monitor_in_fullscreen (monitor)) {
-                    continue;
-                }
-
-                var monitor_geom = display.get_monitor_geometry (monitor);
-
-                var window_geom = window.get_frame_rect ();
-                var top = monitor_geom.y + MAX_OFFSET > window_geom.y;
-                var bottom = monitor_geom.y + monitor_geom.height - MAX_OFFSET < window_geom.y;
-
-                if (!top && !bottom) {
-                    continue;
-                }
-
-                var initial_x = actor.x;
-                var initial_y = actor.y;
-                var target_y = (top)
-                    ? actor.y - actor.height
-                    : actor.y + actor.height;
-
-                var clone = new SafeWindowClone (window, true);
-                dock_clones.add_child (clone);
-
-                clone.set_position (initial_x, initial_y);
-
-                GestureTracker.OnUpdate on_animation_update = (percentage) => {
-                    var y = GestureTracker.animation_value (initial_y, target_y, percentage);
-                    clone.y = y;
-                };
-
-                GestureTracker.OnEnd on_animation_end = (percentage, completions) => {
-                    if (completions == 0) {
-                        return;
-                    }
-
-                    clone.save_easing_state ();
-                    clone.set_easing_mode (Clutter.AnimationMode.EASE_OUT_QUAD);
-                    clone.set_easing_duration ((!is_cancel_animation && AnimationsSettings.get_enable_animations ()) ? ANIMATION_DURATION : 0);
-                    clone.y = target_y;
-                    clone.restore_easing_state ();
-                };
-
-                if (!with_gesture || !AnimationsSettings.get_enable_animations ()) {
-                    on_animation_end (1, 1, 0);
-                } else {
-                    multitasking_gesture_tracker.connect_handlers (null, (owned) on_animation_update, (owned) on_animation_end);
-                }
-            }
-        }
-
-        private void hide_docks (bool with_gesture, bool is_cancel_animation) {
-            foreach (unowned var child in dock_clones.get_children ()) {
-                var dock = (Clutter.Clone) child;
-                var initial_y = dock.y;
-                var target_y = dock.source.y;
-
-                GestureTracker.OnUpdate on_animation_update = (percentage) => {
-                    var y = GestureTracker.animation_value (initial_y, target_y, percentage);
-                    dock.y = y;
-                };
-
-                GestureTracker.OnEnd on_animation_end = (percentage, completions) => {
-                    if (completions == 0) {
-                        return;
-                    }
-
-                    dock.save_easing_state ();
-                    dock.set_easing_mode (Clutter.AnimationMode.EASE_OUT_QUAD);
-                    dock.set_easing_duration (AnimationsSettings.get_animation_duration (ANIMATION_DURATION));
-                    dock.y = target_y;
-                    dock.restore_easing_state ();
-                };
-
-                if (!with_gesture || !AnimationsSettings.get_enable_animations ()) {
-                    on_animation_end (1, 1, 0);
-                } else {
-                    multitasking_gesture_tracker.connect_handlers (null, (owned) on_animation_update, (owned) on_animation_end);
-                }
-            }
-        }
-
         private bool keybinding_filter (Meta.KeyBinding binding) {
             var action = Meta.Prefs.get_keybinding_action (binding.get_name ());