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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 UI_AURA_CLIENT_STACKING_CLIENT_H_
#define UI_AURA_CLIENT_STACKING_CLIENT_H_
#include "ui/aura/aura_export.h"
namespace gfx {
class Rect;
}
namespace aura {
class Window;
namespace client {
// An interface implemented by an object that stacks windows.
class AURA_EXPORT StackingClient {
public:
virtual ~StackingClient() {}
// Called by the Window when it looks for a default parent. Returns the
// window that |window| should be added to instead. |context| provides a
// Window (generally a RootWindow) that can be used to determine which
// desktop type the default parent should be chosen from. NOTE: this may
// have side effects. It should only be used when |window| is going to be
// immediately added.
//
// TODO(erg): Remove |context|, and maybe after oshima's patch lands,
// |bounds|.
virtual Window* GetDefaultParent(
Window* context,
Window* window,
const gfx::Rect& bounds) = 0;
};
// Set/Get a stacking client for a specific window. Setting the stacking client
// sets the stacking client on the window's RootWindow, not the window itself.
// Likewise getting obtains it from the window's RootWindow. If |window| is
// non-NULL it must be in a RootWindow. If |window| is NULL, the default
// stacking client is used.
AURA_EXPORT void SetStackingClient(Window* window,
StackingClient* stacking_client);
StackingClient* GetStackingClient(Window* window);
} // namespace client
} // namespace aura
#endif // UI_AURA_CLIENT_STACKING_CLIENT_H_
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