ui/gfx/test/test_screen.h

   1 // Copyright 2015 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 #include <vector>
   6
   7 #include "base/macros.h"
   8 #include "ui/gfx/display.h"
   9 #include "ui/gfx/screen.h"
  10
  11 namespace gfx {
  12 namespace test {
  13
  14 // A dummy implementation of gfx::Screen that contains a single gfx::Display
  15 // only. The contained gfx::Display can be accessed and modified via
  16 // TestScreen::display().
  17 //
  18 // NOTE: Adding and removing gfx::DisplayOberver's are no-ops and observers will
  19 // NOT be notified ever.
  20 class TestScreen : public gfx::Screen {
  21  public:
  22   TestScreen();
  23   ~TestScreen() override;
  24
  25   gfx::Display* display() { return &display_; }
  26
  27   // gfx::Screen:
  28   gfx::Point GetCursorScreenPoint() override;
  29   gfx::NativeWindow GetWindowUnderCursor() override;
  30   gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
  31   int GetNumDisplays() const override;
  32   std::vector<gfx::Display> GetAllDisplays() const override;
  33   gfx::Display GetDisplayNearestWindow(gfx::NativeView view) const override;
  34   gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override;
  35   gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
  36   gfx::Display GetPrimaryDisplay() const override;
  37   void AddObserver(gfx::DisplayObserver* observer) override;
  38   void RemoveObserver(gfx::DisplayObserver* observer) override;
  39
  40  private:
  41   // The only display.
  42   gfx::Display display_;
  43
  44   DISALLOW_COPY_AND_ASSIGN(TestScreen);
  45 };
  46
  47 }  // namespace test
  48 }  // namespace gfx