Revert of Move ScreenWin to ui/display

ui/gfx/screen_win.h

+// 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_GFX_SCREEN_WIN_H_
+#define UI_GFX_SCREEN_WIN_H_
+
+#include <windows.h>
+
+#include <vector>
+
+#include "base/macros.h"
+#include "ui/gfx/display_change_notifier.h"
+#include "ui/gfx/gfx_export.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 win {
+
+class DisplayInfo;
+class ScreenWinDisplay;
+
+}  // namespace win
+
+class GFX_EXPORT ScreenWin : public Screen {
+ public:
+  ScreenWin();
+  ~ScreenWin() override;
+
+  // Returns the HWND associated with the NativeView.
+  virtual HWND GetHWNDFromNativeView(NativeView window) const;
+
+  // Returns the NativeView associated with the HWND.
+  virtual 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(DisplayObserver* observer) override;
+  void RemoveObserver(DisplayObserver* observer) override;
+
+  void UpdateFromDisplayInfos(
+      const std::vector<gfx::win::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|.
+  gfx::win::ScreenWinDisplay GetScreenWinDisplayNearestHWND(HWND hwnd) const;
+
+  // Returns the ScreenWinDisplay closest to or enclosing |screen_rect|.
+  gfx::win::ScreenWinDisplay GetScreenWinDisplayNearestScreenRect(
+      const Rect& screen_rect) const;
+
+  // Returns the ScreenWinDisplay closest to or enclosing |screen_point|.
+  gfx::win::ScreenWinDisplay GetScreenWinDisplayNearestScreenPoint(
+      const Point& screen_point) const;
+
+  // Returns the ScreenWinDisplay corresponding to the primary monitor.
+  gfx::win::ScreenWinDisplay GetPrimaryScreenWinDisplay() const;
+
+  gfx::win::ScreenWinDisplay GetScreenWinDisplay(
+      const MONITORINFOEX& monitor_info) const;
+
+  // Helper implementing the DisplayObserver handling.
+  gfx::DisplayChangeNotifier change_notifier_;
+
+  scoped_ptr<SingletonHwndObserver> singleton_hwnd_observer_;
+
+  // Current list of ScreenWinDisplays.
+  std::vector<gfx::win::ScreenWinDisplay> screen_win_displays_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScreenWin);
+};
+
+}  // namespace gfx
+
+#endif  // UI_GFX_SCREEN_WIN_H_