1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef ASH_WM_LOCK_LAYOUT_MANAGER_H_
6 #define ASH_WM_LOCK_LAYOUT_MANAGER_H_
8 #include "ash/ash_export.h"
9 #include "ash/shell_delegate.h"
10 #include "ash/wm/wm_types.h"
11 #include "base/basictypes.h"
12 #include "base/compiler_specific.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "ui/aura/layout_manager.h"
15 #include "ui/aura/window_observer.h"
16 #include "ui/gfx/rect.h"
17 #include "ui/keyboard/keyboard_controller.h"
18 #include "ui/keyboard/keyboard_controller_observer.h"
35 // LockLayoutManager is used for the windows created in LockScreenContainer.
36 // For Chrome OS this includes out-of-box/login/lock/multi-profile login use
37 // cases. LockScreenContainer does not use default work area definition.
38 // By default work area is defined as display area minus shelf, docked windows
39 // and minus virtual keyboard bounds.
40 // For windows in LockScreenContainer work area is display area minus virtual
41 // keyboard bounds (only if keyboard overscroll is disabled). If keyboard
42 // overscroll is enabled then work area always equals to display area size since
43 // virtual keyboard changes inner workspace of each WebContents.
44 // For all windows in LockScreenContainer default wm::WindowState is replaced
45 // with LockWindowState.
46 class ASH_EXPORT LockLayoutManager
47 : public aura::LayoutManager,
48 public aura::WindowObserver,
49 public VirtualKeyboardStateObserver,
50 public keyboard::KeyboardControllerObserver {
52 explicit LockLayoutManager(aura::Window* window);
53 virtual ~LockLayoutManager();
55 // Overridden from aura::LayoutManager:
56 virtual void OnWindowResized() OVERRIDE;
57 virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE;
58 virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE;
59 virtual void OnWindowRemovedFromLayout(aura::Window* child) OVERRIDE;
60 virtual void OnChildWindowVisibilityChanged(aura::Window* child,
61 bool visibile) OVERRIDE;
62 virtual void SetChildBounds(aura::Window* child,
63 const gfx::Rect& requested_bounds) OVERRIDE;
65 // Overriden from aura::WindowObserver:
66 virtual void OnWindowHierarchyChanged(
67 const WindowObserver::HierarchyChangeParams& params) OVERRIDE;
68 virtual void OnWindowPropertyChanged(aura::Window* window,
70 intptr_t old) OVERRIDE;
71 virtual void OnWindowStackingChanged(aura::Window* window) OVERRIDE;
72 virtual void OnWindowDestroying(aura::Window* window) OVERRIDE;
73 virtual void OnWindowBoundsChanged(aura::Window* window,
74 const gfx::Rect& old_bounds,
75 const gfx::Rect& new_bounds) OVERRIDE;
77 // VirtualKeyboardStateObserver overrides:
78 virtual void OnVirtualKeyboardStateChanged(bool activated) OVERRIDE;
80 // keyboard::KeyboardControllerObserver overrides:
81 virtual void OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) OVERRIDE;
84 // Adjusts the bounds of all managed windows when the display area changes.
85 // This happens when the display size, work area insets has changed.
86 void AdjustWindowsForWorkAreaChange(const wm::WMEvent* event);
88 aura::Window* window_;
89 aura::Window* root_window_;
91 // True is subscribed as keyboard controller observer.
92 bool is_observing_keyboard_;
94 // The bounds of the keyboard.
95 gfx::Rect keyboard_bounds_;
97 DISALLOW_COPY_AND_ASSIGN(LockLayoutManager);
102 #endif // ASH_WM_LOCK_LAYOUT_MANAGER_H_