blob: 220cc12a60241c938100fb63f26c9c419a65df5b [file] [log] [blame]
// 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 "ash/ash_export.h"
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "ui/base/events/event.h"
namespace aura {
class RootWindow;
class Window;
namespace ash {
namespace internal {
// Provides functions for handling drag events inside and outside the root
// window where drag is started. This internally sets up a capture window for
// tracking drag events outside the root window where drag is initiated.
// ash/wm/coordinate_conversion.h is used internally and only X11 environment
// is supported for now.
class ASH_EXPORT DragDropTracker {
explicit DragDropTracker(aura::RootWindow* root_window);
// Gets the target located at |event| in the coordinates of the root window
// given to the constructor.
aura::Window* GetTarget(const ui::LocatedEvent& event);
// Converts the locations of |event| in the coordinates of the root window
// given to the constructor to the ones in |target|'s coordinates.
// Caller takes ownership of the returned object.
ui::MouseEvent* ConvertMouseEvent(aura::Window* target,
const ui::MouseEvent& event);
// A window for capturing drag events while dragging.
scoped_ptr<aura::Window> capture_window_;
} // namespace internal
} // namespace ash