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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 ASH_WM_COMPACT_LAYOUT_MANAGER_H_
#define ASH_WM_COMPACT_LAYOUT_MANAGER_H_
#pragma once
#include "ash/ash_export.h"
#include "ash/wm/base_layout_manager.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/gtest_prod_util.h"
#include "ui/gfx/compositor/layer_animation_observer.h"
namespace views {
class Widget;
}
namespace ash {
namespace internal {
// CompactLayoutManager is the LayoutManager used in compact window mode,
// which emulates the traditional Chrome OS window manager. Windows are always
// maximized, fill the screen, and only one tabbed browser window is visible at
// a time. The status area appears in the top-right corner of the screen.
class ASH_EXPORT CompactLayoutManager : public BaseLayoutManager,
public ui::ImplicitAnimationObserver {
public:
CompactLayoutManager();
virtual ~CompactLayoutManager();
void set_status_area_widget(views::Widget* widget) {
status_area_widget_ = widget;
}
// LayoutManager overrides:
virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
virtual void OnChildWindowVisibilityChanged(aura::Window* child,
bool visibile) OVERRIDE;
virtual void SetChildBounds(aura::Window* child,
const gfx::Rect& requested_bounds) OVERRIDE;
// aura::WindowObserver overrides:
virtual void OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) OVERRIDE;
virtual void OnWindowStackingChanged(aura::Window* window) OVERRIDE;
// ui::LayerAnimationObserver overrides:
virtual void OnImplicitAnimationsCompleted() OVERRIDE;
private:
FRIEND_TEST_ALL_PREFIXES(CompactLayoutManagerTest, TransitionTest);
FRIEND_TEST_ALL_PREFIXES(CompactLayoutManagerTest, CloseAllWindows);
// Hides the status area if we are managing it and full screen windows are
// visible.
void UpdateStatusAreaVisibility();
// Start a slide in / out animation sequence for the layer.
// The underlying layer is translated to -|offset_x| position.
void AnimateSlideTo(int offset_x);
// Layout all browser windows currently in the window cycle list.
// skip |skip_this_window| if we do not want the window to be laid out.
void LayoutWindows(aura::Window* skip_this_window);
// Hides all but the |current_window_| in the windows list. If we
// cannot determine the |current_window_|, we do not hide any.
void HideWindows();
// Returns the next window after |window| in the window cycle list.
// This could return NULL if we cannot find a next window.
aura::Window* FindReplacementWindow(aura::Window* window);
// Switches to a replacement window of |current_window_|.
void SwitchToReplacementWindow();
// Status area with clock, network, battery, etc. icons. May be NULL if the
// shelf is managing the status area.
views::Widget* status_area_widget_;
// The browser window currently in the viewport.
aura::Window* current_window_;
DISALLOW_COPY_AND_ASSIGN(CompactLayoutManager);
};
} // namespace ash
} // namespace internal
#endif // ASH_WM_COMPACT_LAYOUT_MANAGER_H_
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