ui/aura/test/test_screen.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 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
  13 namespace gfx {
  14 class Insets;
  15 class Rect;
  16 class Transform;
  17 }
  18
  19 namespace aura {
  20 class Window;
  21 class WindowTreeHost;
  22
  23 // A minimal, testing Aura implementation of gfx::Screen.
  24 class 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_