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// 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 UI_DISPLAY_WIN_SCREEN_WIN_H_
#define UI_DISPLAY_WIN_SCREEN_WIN_H_
#include <windows.h>
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "ui/display/display_export.h"
#include "ui/gfx/display_change_notifier.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/screen.h"
#include "ui/gfx/win/singleton_hwnd_observer.h"
namespace gfx {
class Display;
class Point;
class Rect;
} // namespace gfx
namespace display {
namespace win {
class DisplayInfo;
class ScreenWinDisplay;
class DISPLAY_EXPORT ScreenWin : public gfx::Screen {
public:
ScreenWin();
~ScreenWin() override;
// Returns the HWND associated with the NativeView.
virtual HWND GetHWNDFromNativeView(gfx::NativeView window) const;
// Returns the NativeView associated with the HWND.
virtual gfx::NativeWindow GetNativeWindowFromHWND(HWND hwnd) const;
protected:
// gfx::Screen:
gfx::Point GetCursorScreenPoint() override;
gfx::NativeWindow GetWindowUnderCursor() override;
gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
int GetNumDisplays() const override;
std::vector<gfx::Display> GetAllDisplays() const override;
gfx::Display GetDisplayNearestWindow(gfx::NativeView window) const override;
gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override;
gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
gfx::Display GetPrimaryDisplay() const override;
void AddObserver(gfx::DisplayObserver* observer) override;
void RemoveObserver(gfx::DisplayObserver* observer) override;
void UpdateFromDisplayInfos(const std::vector<DisplayInfo>& display_infos);
// Virtual to support mocking by unit tests.
virtual void Initialize();
virtual MONITORINFOEX MonitorInfoFromScreenPoint(
const gfx::Point& screen_point) const;
virtual MONITORINFOEX MonitorInfoFromScreenRect(const gfx::Rect& screen_rect)
const;
virtual MONITORINFOEX MonitorInfoFromWindow(HWND hwnd, DWORD default_options)
const;
virtual HWND GetRootWindow(HWND hwnd) const;
private:
void OnWndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
// Returns the ScreenWinDisplay closest to or enclosing |hwnd|.
ScreenWinDisplay GetScreenWinDisplayNearestHWND(HWND hwnd) const;
// Returns the ScreenWinDisplay closest to or enclosing |screen_rect|.
ScreenWinDisplay GetScreenWinDisplayNearestScreenRect(
const gfx::Rect& screen_rect) const;
// Returns the ScreenWinDisplay closest to or enclosing |screen_point|.
ScreenWinDisplay GetScreenWinDisplayNearestScreenPoint(
const gfx::Point& screen_point) const;
// Returns the ScreenWinDisplay corresponding to the primary monitor.
ScreenWinDisplay GetPrimaryScreenWinDisplay() const;
ScreenWinDisplay GetScreenWinDisplay(const MONITORINFOEX& monitor_info) const;
// Helper implementing the DisplayObserver handling.
gfx::DisplayChangeNotifier change_notifier_;
scoped_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_;
// Current list of ScreenWinDisplays.
std::vector<ScreenWinDisplay> screen_win_displays_;
DISALLOW_COPY_AND_ASSIGN(ScreenWin);
};
} // namespace win
} // namespace display
#endif // UI_DISPLAY_WIN_SCREEN_WIN_H_
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