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// Copyright 2016 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 COMPONENTS_EXO_WM_HELPER_MUS_H_
#define COMPONENTS_EXO_WM_HELPER_MUS_H_
#include "base/macros.h"
#include "components/exo/wm_helper.h"
#include "ui/aura/client/focus_change_observer.h"
#include "ui/aura/mus/focus_synchronizer_observer.h"
#include "ui/events/devices/input_device_event_observer.h"
namespace wm {
class ActivationClient;
}
namespace exo {
// A helper class for accessing WindowManager related features.
// This is only used for mash. Mushrome uses WMHelperAsh.
class WMHelperMus : public WMHelper,
public ui::InputDeviceEventObserver,
public aura::FocusSynchronizerObserver,
public aura::client::FocusChangeObserver {
public:
WMHelperMus();
~WMHelperMus() override;
// Overridden from WMHelper:
const display::ManagedDisplayInfo& GetDisplayInfo(
int64_t display_id) const override;
aura::Window* GetPrimaryDisplayContainer(int container_id) override;
aura::Window* GetActiveWindow() const override;
aura::Window* GetFocusedWindow() const override;
ui::CursorSize GetCursorSize() const override;
const display::Display& GetCursorDisplay() const override;
void AddPreTargetHandler(ui::EventHandler* handler) override;
void PrependPreTargetHandler(ui::EventHandler* handler) override;
void RemovePreTargetHandler(ui::EventHandler* handler) override;
void AddPostTargetHandler(ui::EventHandler* handler) override;
void RemovePostTargetHandler(ui::EventHandler* handler) override;
bool IsTabletModeWindowManagerEnabled() const override;
// Overridden from aura::FocusSynchronizerObserver:
void OnActiveFocusClientChanged(aura::client::FocusClient* focus_client,
aura::Window* focus_client_root) override;
// Overridden from ui::client::FocusChangeObserver:
void OnWindowFocused(aura::Window* gained_focus,
aura::Window* lost_focus) override;
// Overridden from ui::InputDeviceEventObserver:
void OnKeyboardDeviceConfigurationChanged() override;
private:
void SetActiveFocusClient(aura::client::FocusClient* focus_client,
aura::Window* window);
void SetActiveWindow(aura::Window* window);
void SetFocusedWindow(aura::Window* window);
wm::ActivationClient* GetActivationClient();
// Current FocusClient.
aura::client::FocusClient* active_focus_client_ = nullptr;
// This is the window that |active_focus_client_| comes from (may be null).
aura::Window* root_with_active_focus_client_ = nullptr;
aura::Window* active_window_ = nullptr;
aura::Window* focused_window_ = nullptr;
DISALLOW_COPY_AND_ASSIGN(WMHelperMus);
};
} // namespace exo
#endif // COMPONENTS_EXO_WM_HELPER_H_
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