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// Copyright 2013 The Chromium Authors
// 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 "ash/host/ash_window_tree_host_delegate.h"
#include "base/memory/raw_ptr.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host_observer.h"
#include "ui/display/manager/display_manager.h"
#include "ui/display/manager/managed_display_info.h"
namespace aura {
class Window;
namespace client {
class ScreenPositionClient;
}
}
namespace display {
class Display;
class ManagedDisplayInfo;
}
namespace ash {
class AshWindowTreeHost;
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 AshWindowTreeHostDelegate {
public:
MirrorWindowController();
MirrorWindowController(const MirrorWindowController&) = delete;
MirrorWindowController& operator=(const MirrorWindowController&) = delete;
~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(aura::WindowTreeHost* host) override;
// 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;
// AshWindowTreeHostDelegate:
const display::Display* GetDisplayById(int64_t display_id) const override;
void SetCurrentEventTargeterSourceHost(
aura::WindowTreeHost* targeter_src_host) override;
const aura::WindowTreeHost* current_event_targeter_src_host() const {
return current_event_targeter_src_host_;
}
// Returns the mirroring window created to mirror the `display_id`'s root
// window.
const aura::Window* GetMirrorWindowForDisplayIdForTest(int64_t display_id);
private:
friend class 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, raw_ptr<MirroringHostInfo, CtnExperimental>>
MirroringHostInfoMap;
MirroringHostInfoMap mirroring_host_info_map_;
raw_ptr<aura::WindowTreeHost, DanglingUntriaged>
current_event_targeter_src_host_;
display::DisplayManager::MultiDisplayMode multi_display_mode_;
// The id of the display being mirrored.
int64_t reflecting_source_id_ = display::kInvalidDisplayId;
std::unique_ptr<aura::client::ScreenPositionClient> screen_position_client_;
};
} // namespace ash
#endif // ASH_DISPLAY_MIRROR_WINDOW_CONTROLLER_H_
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