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// Copyright (c) 2013 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_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_
#define ASH_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_
#include <stdint.h>
#include <map>
#include <memory>
#include <vector>
#include "ash/ash_export.h"
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host_observer.h"
#include "ui/display/manager/display_manager.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_widget_types.h"
namespace aura {
class Window;
namespace client {
class ScreenPositionClient;
}
}
namespace display {
class Display;
class ManagedDisplayInfo;
}
namespace ui {
class Reflector;
}
namespace ash {
class AshWindowTreeHost;
class RootWindowTransformer;
namespace test {
class MirrorWindowTestApi;
}
// An object that copies the content of the primary root window to a
// mirror window. This also draws a mouse cursor as the mouse cursor
// is typically drawn by the window system.
class ASH_EXPORT MirrorWindowController : public aura::WindowTreeHostObserver {
public:
MirrorWindowController();
~MirrorWindowController() override;
// Updates the root window's bounds using |display_info|.
// Creates the new root window if one doesn't exist.
void UpdateWindow(
const std::vector<display::ManagedDisplayInfo>& display_info);
// Same as above, but using existing display info
// for the mirrored display.
void UpdateWindow();
// Close the mirror window if they're not necessary any longer.
void CloseIfNotNecessary();
// aura::WindowTreeHostObserver overrides:
void OnHostResized(const aura::WindowTreeHost* host) override;
// Return the root window used to mirror the content. NULL if the
// display is not mirrored by the compositor path.
aura::Window* GetWindow();
// Returns the display::Display for the mirroring root window.
display::Display GetDisplayForRootWindow(const aura::Window* root) const;
// Returns the AshWindwoTreeHost created for |display_id|.
AshWindowTreeHost* GetAshWindowTreeHostForDisplayId(int64_t display_id);
// Returns all root windows hosting mirroring displays.
aura::Window::Windows GetAllRootWindows() const;
private:
friend class test::MirrorWindowTestApi;
struct MirroringHostInfo;
// Close the mirror window. When |delay_host_deletion| is true, the window
// tree host will be deleted in an another task on UI thread. This is
// necessary to safely delete the WTH that is currently handling input events.
void Close(bool delay_host_deletion);
void CloseAndDeleteHost(MirroringHostInfo* host_info,
bool delay_host_deletion);
typedef std::map<int64_t, MirroringHostInfo*> MirroringHostInfoMap;
MirroringHostInfoMap mirroring_host_info_map_;
display::DisplayManager::MultiDisplayMode multi_display_mode_;
std::unique_ptr<aura::client::ScreenPositionClient> screen_position_client_;
std::unique_ptr<ui::Reflector> reflector_;
DISALLOW_COPY_AND_ASSIGN(MirrorWindowController);
};
} // namespace ash
#endif // ASH_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_