Ports LockLayoutManager/LockWindowState to ash/common

ash/wm/lock_layout_manager.h

-// 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/common/shell_observer.h"
-#include "ash/common/wm/wm_types.h"
-#include "ash/snap_to_pixel_layout_manager.h"
-#include "base/macros.h"
-#include "ui/aura/layout_manager.h"
-#include "ui/aura/window_observer.h"
-#include "ui/gfx/geometry/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 ShellObserver,
-      public keyboard::KeyboardControllerObserver {
- public:
-  explicit LockLayoutManager(aura::Window* window);
-  ~LockLayoutManager() override;
-
-  // Overridden from aura::LayoutManager:
-  void OnWindowResized() override;
-  void OnWindowAddedToLayout(aura::Window* child) override;
-  void OnWillRemoveWindowFromLayout(aura::Window* child) override;
-  void OnWindowRemovedFromLayout(aura::Window* child) override;
-  void OnChildWindowVisibilityChanged(aura::Window* child,
-                                      bool visibile) override;
-  void SetChildBounds(aura::Window* child,
-                      const gfx::Rect& requested_bounds) override;
-
-  // Overriden from aura::WindowObserver:
-  void OnWindowHierarchyChanged(
-      const WindowObserver::HierarchyChangeParams& params) override;
-  void OnWindowPropertyChanged(aura::Window* window,
-                               const void* key,
-                               intptr_t old) override;
-  void OnWindowStackingChanged(aura::Window* window) override;
-  void OnWindowDestroying(aura::Window* window) override;
-  void OnWindowBoundsChanged(aura::Window* window,
-                             const gfx::Rect& old_bounds,
-                             const gfx::Rect& new_bounds) override;
-
-  // ShellObserver:
-  void OnVirtualKeyboardStateChanged(bool activated) override;
-
-  // keyboard::KeyboardControllerObserver overrides:
-  void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) override;
-  void OnKeyboardClosed() 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_