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   ~TestScreen() override;
  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   void OnWindowBoundsChanged(Window* window,
  47                              const gfx::Rect& old_bounds,
  48                              const gfx::Rect& new_bounds) override;
  49   void OnWindowDestroying(Window* window) override;
  50
  51   // gfx::Screen overrides:
  52   gfx::Point GetCursorScreenPoint() override;
  53   gfx::NativeWindow GetWindowUnderCursor() override;
  54   gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
  55   int GetNumDisplays() const override;
  56   std::vector<gfx::Display> GetAllDisplays() const override;
  57   gfx::Display GetDisplayNearestWindow(gfx::NativeView view) const override;
  58   gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override;
  59   gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
  60   gfx::Display GetPrimaryDisplay() const override;
  61   void AddObserver(gfx::DisplayObserver* observer) override;
  62   void RemoveObserver(gfx::DisplayObserver* observer) override;
  63
  64  private:
  65   explicit TestScreen(const gfx::Rect& screen_bounds);
  66
  67   aura::WindowTreeHost* host_;
  68
  69   gfx::Display display_;
  70
  71   float ui_scale_;
  72
  73   DISALLOW_COPY_AND_ASSIGN(TestScreen);
  74 };
  75
  76 }  // namespace aura
  77
  78 #endif  // UI_AURA_TEST_TEST_SCREEN_H_