Reland of AppListController refactoring part 3: Switching over to use AppListShower in Ash.

ash/wm/app_list_controller.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ASH_WM_APP_LIST_CONTROLLER_H_
-#define ASH_WM_APP_LIST_CONTROLLER_H_
-
-#include "ash/shelf/shelf_icon_observer.h"
-#include "ash/shell_observer.h"
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "ui/app_list/pagination_model_observer.h"
-#include "ui/aura/client/focus_change_observer.h"
-#include "ui/aura/window_observer.h"
-#include "ui/compositor/layer_animation_observer.h"
-#include "ui/events/event_handler.h"
-#include "ui/gfx/geometry/rect.h"
-#include "ui/keyboard/keyboard_controller_observer.h"
-#include "ui/views/widget/widget_observer.h"
-
-namespace app_list {
-class ApplicationDragAndDropHost;
-class AppListView;
-}
-
-namespace ui {
-class LocatedEvent;
-}
-
-namespace ash {
-namespace test {
-class AppListControllerTestApi;
-}
-
-// AppListController is a controller that manages app list UI for shell.
-// It creates AppListView and schedules showing/hiding animation.
-// While the UI is visible, it monitors things such as app list widget's
-// activation state and desktop mouse click to auto dismiss the UI.
-class AppListController : public ui::EventHandler,
-                          public aura::client::FocusChangeObserver,
-                          public aura::WindowObserver,
-                          public ui::ImplicitAnimationObserver,
-                          public views::WidgetObserver,
-                          public keyboard::KeyboardControllerObserver,
-                          public ShellObserver,
-                          public ShelfIconObserver,
-                          public app_list::PaginationModelObserver {
- public:
-  AppListController();
-  ~AppListController() override;
-
-  // Show/hide app list window. The |window| is used to deterime in
-  // which display (in which the |window| exists) the app list should
-  // be shown.
-  void Show(aura::Window* window);
-  void Dismiss();
-
-  // Whether app list window is visible (shown or being shown).
-  bool IsVisible() const;
-
-  // Returns target visibility. This differs from IsVisible() if an animation
-  // is ongoing.
-  bool GetTargetVisibility() const { return is_visible_; }
-
-  // Returns app list window or NULL if it is not visible.
-  aura::Window* GetWindow();
-
-  // Returns app list view if one exists, or NULL otherwise.
-  app_list::AppListView* GetView() { return view_; }
-
- private:
-  friend class test::AppListControllerTestApi;
-
-  // If |drag_and_drop_host| is not NULL it will be called upon drag and drop
-  // operations outside the application list.
-  void SetDragAndDropHostOfCurrentAppList(
-      app_list::ApplicationDragAndDropHost* drag_and_drop_host);
-
-  // Sets the app list view and attempts to show it.
-  void SetView(app_list::AppListView* view);
-
-  // Forgets the view.
-  void ResetView();
-
-  // Starts show/hide animation.
-  void ScheduleAnimation();
-
-  void ProcessLocatedEvent(ui::LocatedEvent* event);
-
-  // Makes app list bubble update its bounds.
-  void UpdateBounds();
-
-  // ui::EventHandler overrides:
-  void OnMouseEvent(ui::MouseEvent* event) override;
-  void OnGestureEvent(ui::GestureEvent* event) override;
-
-  // aura::client::FocusChangeObserver overrides:
-  void OnWindowFocused(aura::Window* gained_focus,
-                       aura::Window* lost_focus) override;
-
-  // aura::WindowObserver overrides:
-  void OnWindowBoundsChanged(aura::Window* root,
-                             const gfx::Rect& old_bounds,
-                             const gfx::Rect& new_bounds) override;
-
-  // ui::ImplicitAnimationObserver overrides:
-  void OnImplicitAnimationsCompleted() override;
-
-  // views::WidgetObserver overrides:
-  void OnWidgetDestroying(views::Widget* widget) override;
-
-  // KeyboardControllerObserver overrides:
-  void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) override;
-
-  // ShellObserver overrides:
-  void OnShelfAlignmentChanged(aura::Window* root_window) override;
-  void OnMaximizeModeStarted() override;
-  void OnMaximizeModeEnded() override;
-
-  // ShelfIconObserver overrides:
-  void OnShelfIconPositionsChanged() override;
-
-  // app_list::PaginationModelObserver overrides:
-  void TotalPagesChanged() override;
-  void SelectedPageChanged(int old_selected, int new_selected) override;
-  void TransitionStarted() override;
-  void TransitionChanged() override;
-
-  // Whether we should show or hide app list widget.
-  bool is_visible_;
-
-  // Whether the app list should remain centered.
-  bool is_centered_;
-
-  // The AppListView this class manages, owned by its widget.
-  app_list::AppListView* view_;
-
-  // The current page of the AppsGridView of |view_|. This is stored outside of
-  // the view's PaginationModel, so that it persists when the view is destroyed.
-  int current_apps_page_;
-
-  // Cached bounds of |view_| for snapping back animation after over-scroll.
-  gfx::Rect view_bounds_;
-
-  // Whether should schedule snap back animation.
-  bool should_snap_back_;
-
-  DISALLOW_COPY_AND_ASSIGN(AppListController);
-};
-
-}  // namespace ash
-
-#endif  // ASH_WM_APP_LIST_CONTROLLER_H_