blob: 44a26ea2669116dc5cc786a9a56b2b5e58765000 [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 <memory>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "ui/aura/window_observer.h"
namespace ash {
class WorkspaceLayoutManager;
// AlwaysOnTopController puts window into proper containers based on its
// 'AlwaysOnTop' property. That is, putting a window into the worskpace
// container if its "AlwaysOnTop" property is false. Otherwise, put it in
// |always_on_top_container_|.
class ASH_EXPORT AlwaysOnTopController : public aura::WindowObserver {
explicit AlwaysOnTopController(aura::Window* viewport);
~AlwaysOnTopController() override;
// Gets container for given |window| based on its "AlwaysOnTop" property.
aura::Window* GetContainer(aura::Window* window) const;
WorkspaceLayoutManager* GetLayoutManager() const;
void SetLayoutManagerForTest(
std::unique_ptr<WorkspaceLayoutManager> layout_manager);
// Overridden from aura::WindowObserver:
void OnWindowHierarchyChanged(const HierarchyChangeParams& params) override;
void OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) override;
void OnWindowDestroying(aura::Window* window) override;
aura::Window* always_on_top_container_;
} // namepsace ash