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// Copyright (c) 2012 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 ASH_SCREEN_ASH_H_
#define ASH_SCREEN_ASH_H_
#include "ash/ash_export.h"
#include "base/compiler_specific.h"
#include "base/observer_list.h"
#include "ui/gfx/screen.h"
namespace gfx {
class Rect;
}
namespace ash {
// Aura implementation of gfx::Screen. Implemented here to avoid circular
// dependencies.
class ASH_EXPORT ScreenAsh : public gfx::Screen {
public:
ScreenAsh();
virtual ~ScreenAsh();
// Finds the display that contains |point| in screeen coordinates.
// Returns invalid display if there is no display that can satisfy
// the condition.
static gfx::Display FindDisplayContainingPoint(const gfx::Point& point);
// Returns the bounds for maximized windows in parent coordinates.
// Maximized windows trigger auto-hiding the shelf.
static gfx::Rect GetMaximizedWindowBoundsInParent(aura::Window* window);
// Returns the display bounds in parent coordinates.
static gfx::Rect GetDisplayBoundsInParent(aura::Window* window);
// Returns the display's work area bounds in parent coordinates.
static gfx::Rect GetDisplayWorkAreaBoundsInParent(aura::Window* window);
// Converts |rect| from |window|'s coordinates to the virtual screen
// coordinates.
static gfx::Rect ConvertRectToScreen(aura::Window* window,
const gfx::Rect& rect);
// Converts |rect| from virtual screen coordinates to the |window|'s
// coordinates.
static gfx::Rect ConvertRectFromScreen(aura::Window* window,
const gfx::Rect& rect);
// Returns a gfx::Display object for secondary display. Returns
// invalid display if there is no secondary display connected.
static const gfx::Display& GetSecondaryDisplay();
// Returns a gfx::Display object for the specified id. Returns
// invalid display if no such display is connected.
static const gfx::Display& GetDisplayForId(int64 display_id);
// Notifies observers of display configuration changes.
void NotifyBoundsChanged(const gfx::Display& display);
void NotifyDisplayAdded(const gfx::Display& display);
void NotifyDisplayRemoved(const gfx::Display& display);
protected:
// gfx::Screen overrides:
virtual bool IsDIPEnabled() OVERRIDE;
virtual gfx::Point GetCursorScreenPoint() OVERRIDE;
virtual gfx::NativeWindow GetWindowUnderCursor() OVERRIDE;
virtual gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point)
OVERRIDE;
virtual int GetNumDisplays() const OVERRIDE;
virtual std::vector<gfx::Display> GetAllDisplays() const OVERRIDE;
virtual gfx::Display GetDisplayNearestWindow(
gfx::NativeView view) const OVERRIDE;
virtual gfx::Display GetDisplayNearestPoint(
const gfx::Point& point) const OVERRIDE;
virtual gfx::Display GetDisplayMatching(
const gfx::Rect& match_rect) const OVERRIDE;
virtual gfx::Display GetPrimaryDisplay() const OVERRIDE;
virtual void AddObserver(gfx::DisplayObserver* observer) OVERRIDE;
virtual void RemoveObserver(gfx::DisplayObserver* observer) OVERRIDE;
private:
ObserverList<gfx::DisplayObserver> observers_;
DISALLOW_COPY_AND_ASSIGN(ScreenAsh);
};
} // namespace ash
#endif // ASH_SCREEN_ASH_H_
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