ash/display/screen_position_controller.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef ASH_DISPLAY_SCREEN_POSITION_CONTROLLER_H_
   6 #define ASH_DISPLAY_SCREEN_POSITION_CONTROLLER_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "ui/aura/client/screen_position_client.h"
  12
  13 namespace ash {
  14
  15 class ScreenPositionController : public aura::client::ScreenPositionClient {
  16  public:
  17   // Finds the root window at |location| in |window|'s coordinates
  18   // from given |root_windows| and returns the found root window and
  19   // location in that root window's coordinates. The function usually
  20   // returns |window->GetRootWindow()|, but if the mouse pointer is
  21   // moved outside the |window|'s root while the mouse is captured, it
  22   // returns the other root window.
  23   static void ConvertHostPointToRelativeToRootWindow(
  24       aura::Window* root_window,
  25       const std::vector<aura::Window*>& root_windows,
  26       gfx::Point* point_in_host,
  27       aura::Window** target_window);
  28
  29   ScreenPositionController() {}
  30   ~ScreenPositionController() override {}
  31
  32   // aura::client::ScreenPositionClient overrides:
  33   void ConvertPointToScreen(const aura::Window* window,
  34                             gfx::Point* point) override;
  35   void ConvertPointFromScreen(const aura::Window* window,
  36                               gfx::Point* point) override;
  37   void ConvertHostPointToScreen(aura::Window* window,
  38                                 gfx::Point* point) override;
  39   void SetBounds(aura::Window* window,
  40                  const gfx::Rect& bounds,
  41                  const gfx::Display& display) override;
  42
  43  private:
  44   DISALLOW_COPY_AND_ASSIGN(ScreenPositionController);
  45 };
  46
  47 }  // namespace ash
  48
  49 #endif  // ASH_DISPLAY_SCREEN_POSITION_CONTROLLER_H_