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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.
#include "ui/aura/aura_export.h"
#include "ui/aura/window.h"
namespace gfx {
class Display;
class Rect;
namespace aura {
class Window;
namespace client {
// An interface implemented by an object that changes coordinates within a root
// Window into system coordinates.
class AURA_EXPORT ScreenPositionClient {
virtual ~ScreenPositionClient() {}
// Converts the |screen_point| from a given |window|'s coordinate space
// into screen coordinate space.
// TODO( remove int version of point conversion when
// current usage are changed to use float version.
virtual void ConvertPointToScreen(const Window* window,
gfx::PointF* point) = 0;
virtual void ConvertPointFromScreen(const Window* window,
gfx::PointF* point) = 0;
void ConvertPointToScreen(const Window* window, gfx::Point* point);
void ConvertPointFromScreen(const Window* window, gfx::Point* point);
// Converts the |screen_point| from root window host's coordinate of
// into screen coordinate space.
// A typical example of using this function instead of ConvertPointToScreen is
// when X's native input is captured by a drag operation.
// See the comments for ash::GetRootWindowRelativeToWindow for details.
virtual void ConvertHostPointToScreen(Window* root_window,
gfx::Point* point) = 0;
// Sets the bounds of the window. The implementation is responsible
// for finding out and translating the right coordinates for the |window|.
virtual void SetBounds(Window* window,
const gfx::Rect& bounds,
const display::Display& display) = 0;
// Sets/Gets the activation client on the Window.
AURA_EXPORT void SetScreenPositionClient(Window* root_window,
ScreenPositionClient* client);
AURA_EXPORT ScreenPositionClient* GetScreenPositionClient(
const Window* root_window);
} // namespace client
} // namespace aura