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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_DISPLAY_SCREEN_BASE_H_
#define UI_DISPLAY_SCREEN_BASE_H_
#include <vector>
#include "ui/display/display.h"
#include "ui/display/display_export.h"
#include "ui/display/display_list.h"
#include "ui/display/screen.h"
namespace display {
// Simple screen implementation with a display list.
class DISPLAY_EXPORT ScreenBase : public Screen {
public:
ScreenBase();
~ScreenBase() override;
DisplayList& display_list() { return display_list_; };
const DisplayList& display_list() const { return display_list_; };
// Screen:
gfx::Point GetCursorScreenPoint() override;
bool IsWindowUnderCursor(gfx::NativeWindow window) override;
gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
Display GetPrimaryDisplay() const override;
Display GetDisplayNearestWindow(gfx::NativeWindow window) const override;
Display GetDisplayNearestPoint(const gfx::Point& point) const override;
int GetNumDisplays() const override;
const std::vector<Display>& GetAllDisplays() const override;
Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
void AddObserver(DisplayObserver* observer) override;
void RemoveObserver(DisplayObserver* observer) override;
protected:
// Invoked when a display changed in some way, including being added.
// If |is_primary| is true, |changed_display| is the primary display.
void ProcessDisplayChanged(const Display& changed_display, bool is_primary);
private:
DisplayList display_list_;
DISALLOW_COPY_AND_ASSIGN(ScreenBase);
};
} // namespace display
#endif // UI_DISPLAY_SCREEN_BASE_H_
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