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 UI_AURA_TEST_TEST_SCREEN_H_
6#define UI_AURA_TEST_TEST_SCREEN_H_
7
8#include "base/compiler_specific.h"
9#include "ui/aura/window_observer.h"
10#include "ui/gfx/display.h"
11#include "ui/gfx/screen.h"
12
13namespace gfx {
14class Insets;
15class Rect;
16class Transform;
17}
18
19namespace aura {
20class Window;
21class WindowTreeHost;
22
23// A minimal, testing Aura implementation of gfx::Screen.
24class TestScreen : public gfx::Screen,
25                   public WindowObserver {
26 public:
27  // Creates a gfx::Screen of the specified size. If no size is specified, then
28  // creates a 800x600 screen. |size| is in physical pixels.
29  static TestScreen* Create(const gfx::Size& size);
30  // Creates a TestScreen that uses fullscreen for the display.
31  static TestScreen* CreateFullscreen();
32  virtual ~TestScreen();
33
34  WindowTreeHost* CreateHostForPrimaryDisplay();
35
36  void SetDeviceScaleFactor(float device_scale_fator);
37  void SetDisplayRotation(gfx::Display::Rotation rotation);
38  void SetUIScale(float ui_scale);
39  void SetWorkAreaInsets(const gfx::Insets& insets);
40
41 protected:
42  gfx::Transform GetRotationTransform() const;
43  gfx::Transform GetUIScaleTransform() const;
44
45  // WindowObserver overrides:
46  virtual void OnWindowBoundsChanged(Window* window,
47                                     const gfx::Rect& old_bounds,
48                                     const gfx::Rect& new_bounds) OVERRIDE;
49  virtual void OnWindowDestroying(Window* window) OVERRIDE;
50
51  // gfx::Screen overrides:
52  virtual bool IsDIPEnabled() OVERRIDE;
53  virtual gfx::Point GetCursorScreenPoint() OVERRIDE;
54  virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE;
55  virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
56      OVERRIDE;
57  virtual int GetNumDisplays() const OVERRIDE;
58  virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE;
59  virtual gfx::Display GetDisplayNearestWindow(
60      gfx::NativeView view) const OVERRIDE;
61  virtual gfx::Display GetDisplayNearestPoint(
62      const gfx::Point& point) const OVERRIDE;
63  virtual gfx::Display GetDisplayMatching(
64      const gfx::Rect& match_rect) const OVERRIDE;
65  virtual gfx::Display GetPrimaryDisplay() const OVERRIDE;
66  virtual void AddObserver(gfx::DisplayObserver* observer) OVERRIDE;
67  virtual void RemoveObserver(gfx::DisplayObserver* observer) OVERRIDE;
68
69 private:
70  explicit TestScreen(const gfx::Rect& screen_bounds);
71
72  aura::WindowTreeHost* host_;
73
74  gfx::Display display_;
75
76  float ui_scale_;
77
78  DISALLOW_COPY_AND_ASSIGN(TestScreen);
79};
80
81}  // namespace aura
82
83#endif  // UI_AURA_TEST_TEST_SCREEN_H_
84