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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 HEADLESS_LIB_BROWSER_HEADLESS_SCREEN_H_
#define HEADLESS_LIB_BROWSER_HEADLESS_SCREEN_H_
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "ui/aura/window_observer.h"
#include "ui/gfx/display.h"
#include "ui/gfx/screen.h"
namespace gfx {
class Insets;
class Rect;
class Transform;
}
namespace aura {
class Window;
class WindowTreeHost;
}
namespace headless {
class HeadlessScreen : public gfx::Screen, public aura::WindowObserver {
public:
// Creates a gfx::Screen of the specified size. If no size is specified, then
// creates a 800x600 screen. |size| is in physical pixels.
static HeadlessScreen* Create(const gfx::Size& size);
~HeadlessScreen() override;
aura::WindowTreeHost* CreateHostForPrimaryDisplay();
void SetDeviceScaleFactor(float device_scale_fator);
void SetDisplayRotation(gfx::Display::Rotation rotation);
void SetUIScale(float ui_scale);
void SetWorkAreaInsets(const gfx::Insets& insets);
protected:
gfx::Transform GetRotationTransform() const;
gfx::Transform GetUIScaleTransform() const;
// WindowObserver overrides:
void OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) override;
void OnWindowDestroying(aura::Window* window) override;
// gfx::Screen overrides:
gfx::Point GetCursorScreenPoint() override;
gfx::NativeWindow GetWindowUnderCursor() override;
gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
int GetNumDisplays() const override;
std::vector<gfx::Display> GetAllDisplays() const override;
gfx::Display GetDisplayNearestWindow(gfx::NativeView view) const override;
gfx::Display GetDisplayNearestPoint(const gfx::Point& point) const override;
gfx::Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
gfx::Display GetPrimaryDisplay() const override;
void AddObserver(gfx::DisplayObserver* observer) override;
void RemoveObserver(gfx::DisplayObserver* observer) override;
private:
explicit HeadlessScreen(const gfx::Rect& screen_bounds);
aura::WindowTreeHost* host_;
gfx::Display display_;
float ui_scale_;
DISALLOW_COPY_AND_ASSIGN(HeadlessScreen);
};
} // namespace headless
#endif // HEADLESS_LIB_BROWSER_HEADLESS_SCREEN_H_
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