blob: 96763a66a219433ca3c4427b0cd4cc3058d4e271 [file] [log] [blame]
// 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.
#include <stdint.h>
#include "ash/app_list/app_list_presenter_delegate.h"
#include "ash/ash_export.h"
#include "ash/shelf/shelf.h"
#include "ash/shelf/shelf_observer.h"
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "ui/display/display_observer.h"
#include "ui/display/screen.h"
#include "ui/events/event_handler.h"
namespace ui {
class LocatedEvent;
} // namespace ui
namespace ash {
class AppListControllerImpl;
class AppListPresenterImpl;
class AppListView;
class AppListViewDelegate;
// Responsible for laying out the app list UI as well as updating the Shelf
// launch icon as the state of the app list changes. Listens to shell events
// and touches/mouse clicks outside the app list to auto dismiss the UI or
// update its layout as necessary.
class ASH_EXPORT AppListPresenterDelegateImpl : public AppListPresenterDelegate,
public ui::EventHandler,
public display::DisplayObserver,
public ShelfObserver {
explicit AppListPresenterDelegateImpl(AppListControllerImpl* controller);
~AppListPresenterDelegateImpl() override;
// AppListPresenterDelegate:
void SetPresenter(AppListPresenterImpl* presenter) override;
void Init(AppListView* view, int64_t display_id) override;
void ShowForDisplay(int64_t display_id) override;
void OnClosing() override;
void OnClosed() override;
bool IsTabletMode() const override;
AppListViewDelegate* GetAppListViewDelegate() override;
bool GetOnScreenKeyboardShown() override;
aura::Window* GetContainerForWindow(aura::Window* window) override;
aura::Window* GetRootWindowForDisplayId(int64_t display_id) override;
void OnVisibilityChanged(bool visible, int64_t display_id) override;
void OnVisibilityWillChange(bool visible, int64_t display_id) override;
bool IsVisible(const base::Optional<int64_t>& display_id) override;
// DisplayObserver overrides:
void OnDisplayMetricsChanged(const display::Display& display,
uint32_t changed_metrics) override;
// ShelfObserver:
void OnBackgroundTypeChanged(ShelfBackgroundType background_type,
AnimationChangeType change_type) override;
void ProcessLocatedEvent(ui::LocatedEvent* event);
// ui::EventHandler overrides:
void OnMouseEvent(ui::MouseEvent* event) override;
void OnGestureEvent(ui::GestureEvent* event) override;
void OnKeyEvent(ui::KeyEvent* event) override;
// Snaps the app list window bounds to fit the screen size. (See
void SnapAppListBoundsToDisplayEdge();
// Whether the app list is visible (or in the process of being shown).
bool is_visible_ = false;
// Not owned. Pointer is guaranteed to be valid while this object is alive.
AppListPresenterImpl* presenter_;
// Owned by its widget.
AppListView* view_ = nullptr;
// Not owned, owns this class.
AppListControllerImpl* const controller_ = nullptr;
// An observer that notifies AppListView when the display has changed.
ScopedObserver<display::Screen, display::DisplayObserver> display_observer_{
// An observer that notifies AppListView when the shelf state has changed.
ScopedObserver<Shelf, ShelfObserver> shelf_observer_{this};
} // namespace ash