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// Copyright 2014 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 EXTENSIONS_SHELL_BROWSER_SHELL_SCREEN_H_
#define EXTENSIONS_SHELL_BROWSER_SHELL_SCREEN_H_
#include "base/macros.h"
#include "ui/aura/window_observer.h"
#include "ui/display/display.h"
#include "ui/display/screen_base.h"
namespace aura {
class WindowTreeHost;
}
namespace gfx {
class Size;
}
namespace extensions {
// A minimal Aura implementation of a screen. Scale factor is locked at 1.0.
// When running on a Linux desktop resizing the main window resizes the screen.
class ShellScreen : public display::ScreenBase, public aura::WindowObserver {
public:
// Creates a screen occupying |size| physical pixels.
explicit ShellScreen(const gfx::Size& size);
~ShellScreen() override;
// Caller owns the returned object.
aura::WindowTreeHost* CreateHostForPrimaryDisplay();
// WindowObserver overrides:
void OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) override;
void OnWindowDestroying(aura::Window* window) override;
// display::Screen overrides:
gfx::Point GetCursorScreenPoint() override;
bool IsWindowUnderCursor(gfx::NativeWindow window) override;
gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
display::Display GetDisplayNearestWindow(gfx::NativeView view) const override;
private:
aura::WindowTreeHost* host_; // Not owned.
DISALLOW_COPY_AND_ASSIGN(ShellScreen);
};
} // namespace extensions
#endif // EXTENSIONS_SHELL_BROWSER_SHELL_SCREEN_H_
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