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// Copyright 2014 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_LOCK_LAYOUT_MANAGER_H_
#define ASH_WM_LOCK_LAYOUT_MANAGER_H_
#include "ash/ash_export.h"
#include "ash/shell_delegate.h"
#include "ash/snap_to_pixel_layout_manager.h"
#include "ash/wm/wm_types.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "ui/aura/layout_manager.h"
#include "ui/aura/window_observer.h"
#include "ui/gfx/rect.h"
#include "ui/keyboard/keyboard_controller.h"
#include "ui/keyboard/keyboard_controller_observer.h"
namespace aura {
class RootWindow;
class Window;
}
namespace ui {
class Layer;
}
namespace ash {
namespace wm {
class WindowState;
class WMEvent;
}
// LockLayoutManager is used for the windows created in LockScreenContainer.
// For Chrome OS this includes out-of-box/login/lock/multi-profile login use
// cases. LockScreenContainer does not use default work area definition.
// By default work area is defined as display area minus shelf, docked windows
// and minus virtual keyboard bounds.
// For windows in LockScreenContainer work area is display area minus virtual
// keyboard bounds (only if keyboard overscroll is disabled). If keyboard
// overscroll is enabled then work area always equals to display area size since
// virtual keyboard changes inner workspace of each WebContents.
// For all windows in LockScreenContainer default wm::WindowState is replaced
// with LockWindowState.
class ASH_EXPORT LockLayoutManager
: public SnapToPixelLayoutManager,
public aura::WindowObserver,
public VirtualKeyboardStateObserver,
public keyboard::KeyboardControllerObserver {
public:
explicit LockLayoutManager(aura::Window* window);
virtual ~LockLayoutManager();
// Overridden from aura::LayoutManager:
virtual void OnWindowResized() OVERRIDE;
virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
virtual void OnWindowRemovedFromLayout(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;
// Overriden from aura::WindowObserver:
virtual void OnWindowHierarchyChanged(
const WindowObserver::HierarchyChangeParams& params) OVERRIDE;
virtual void OnWindowPropertyChanged(aura::Window* window,
const void* key,
intptr_t old) OVERRIDE;
virtual void OnWindowStackingChanged(aura::Window* window) OVERRIDE;
virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
virtual void OnWindowBoundsChanged(aura::Window* window,
const gfx::Rect& old_bounds,
const gfx::Rect& new_bounds) OVERRIDE;
// VirtualKeyboardStateObserver overrides:
virtual void OnVirtualKeyboardStateChanged(bool activated) OVERRIDE;
// keyboard::KeyboardControllerObserver overrides:
virtual void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) OVERRIDE;
private:
// Adjusts the bounds of all managed windows when the display area changes.
// This happens when the display size, work area insets has changed.
void AdjustWindowsForWorkAreaChange(const wm::WMEvent* event);
aura::Window* window_;
aura::Window* root_window_;
// True is subscribed as keyboard controller observer.
bool is_observing_keyboard_;
// The bounds of the keyboard.
gfx::Rect keyboard_bounds_;
DISALLOW_COPY_AND_ASSIGN(LockLayoutManager);
};
} // namespace ash
#endif // ASH_WM_LOCK_LAYOUT_MANAGER_H_
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