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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_AURA_CLIENT_WINDOW_PARENTING_CLIENT_H_
#define UI_AURA_CLIENT_WINDOW_PARENTING_CLIENT_H_
#include <cstdint>
#include "ui/aura/aura_export.h"
namespace gfx {
class Rect;
}
namespace aura {
class Window;
namespace client {
// Implementations of this object are used to help locate a default parent for
// NULL-parented Windows.
class AURA_EXPORT WindowParentingClient {
public:
virtual ~WindowParentingClient() {}
// Called by the Window when it looks for a default parent. Returns the
// window that |window| should be added to instead. NOTE: this may have
// side effects. It should only be used when |window| is going to be
// immediately added.
virtual Window* GetDefaultParent(Window* window,
const gfx::Rect& bounds,
const int64_t display_id) = 0;
};
// Set/Get a window tree client for the RootWindow containing |window|. |window|
// must not be NULL.
AURA_EXPORT void SetWindowParentingClient(
Window* window,
WindowParentingClient* window_tree_client);
AURA_EXPORT WindowParentingClient* GetWindowParentingClient(Window* window);
// Adds |window| to an appropriate parent by consulting an implementation of
// WindowParentingClient attached at the root Window resolved by 'context',
// 'screen_bounds' and 'display_id'. The final location may be a window
// hierarchy other than the one supplied via |context|, which must not be
// NULL. `screen_bounds` may be empty and `display_id` maybe invalid.
AURA_EXPORT void ParentWindowWithContext(Window* window,
Window* context,
const gfx::Rect& screen_bounds,
const int64_t display_id);
} // namespace client
} // namespace aura
#endif // UI_AURA_CLIENT_WINDOW_PARENTING_CLIENT_H_
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