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.
4
5 #include "ash/wm/lock_layout_manager.h"
6
7 #include "ash/shell.h"
8 #include "ash/shell_delegate.h"
9 #include "ash/wm/lock_window_state.h"
10 #include "ash/wm/window_state.h"
11 #include "ash/wm/wm_event.h"
12 #include "ui/aura/window.h"
13 #include "ui/aura/window_observer.h"
14 #include "ui/events/event.h"
15 #include "ui/keyboard/keyboard_controller.h"
16 #include "ui/keyboard/keyboard_util.h"
17
18 namespace ash {
19
LockLayoutManager(aura::Window * window)20 LockLayoutManager::LockLayoutManager(aura::Window* window)
21 : window_(window),
22 root_window_(window->GetRootWindow()),
23 is_observing_keyboard_(false) {
24 Shell::GetInstance()->delegate()->AddVirtualKeyboardStateObserver(this);
25 root_window_->AddObserver(this);
26 if (keyboard::KeyboardController::GetInstance()) {
27 keyboard::KeyboardController::GetInstance()->AddObserver(this);
28 is_observing_keyboard_ = true;
29 }
30 }
31
~LockLayoutManager()32 LockLayoutManager::~LockLayoutManager() {
33 if (root_window_)
34 root_window_->RemoveObserver(this);
35
36 for (aura::Window::Windows::const_iterator it = window_->children().begin();
37 it != window_->children().end(); ++it) {
38 (*it)->RemoveObserver(this);
39 }
40
41 Shell::GetInstance()->delegate()->RemoveVirtualKeyboardStateObserver(this);
42
43 if (keyboard::KeyboardController::GetInstance() && is_observing_keyboard_) {
44 keyboard::KeyboardController::GetInstance()->RemoveObserver(this);
45 is_observing_keyboard_ = false;
46 }
47 }
48
OnWindowResized()49 void LockLayoutManager::OnWindowResized() {
50 const wm::WMEvent event(wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED);
51 AdjustWindowsForWorkAreaChange(&event);
52 }
53
OnWindowAddedToLayout(aura::Window * child)54 void LockLayoutManager::OnWindowAddedToLayout(aura::Window* child) {
55 child->AddObserver(this);
56
57 // LockWindowState replaces default WindowState of a child.
58 wm::WindowState* window_state = LockWindowState::SetLockWindowState(child);
59 wm::WMEvent event(wm::WM_EVENT_ADDED_TO_WORKSPACE);
60 window_state->OnWMEvent(&event);
61 }
62
OnWillRemoveWindowFromLayout(aura::Window * child)63 void LockLayoutManager::OnWillRemoveWindowFromLayout(aura::Window* child) {
64 child->RemoveObserver(this);
65 }
66
OnWindowRemovedFromLayout(aura::Window * child)67 void LockLayoutManager::OnWindowRemovedFromLayout(aura::Window* child) {
68 }
69
OnChildWindowVisibilityChanged(aura::Window * child,bool visible)70 void LockLayoutManager::OnChildWindowVisibilityChanged(aura::Window* child,
71 bool visible) {
72 }
73
SetChildBounds(aura::Window * child,const gfx::Rect & requested_bounds)74 void LockLayoutManager::SetChildBounds(aura::Window* child,
75 const gfx::Rect& requested_bounds) {
76 wm::WindowState* window_state = wm::GetWindowState(child);
77 wm::SetBoundsEvent event(wm::WM_EVENT_SET_BOUNDS, requested_bounds);
78 window_state->OnWMEvent(&event);
79 }
80
OnWindowHierarchyChanged(const WindowObserver::HierarchyChangeParams & params)81 void LockLayoutManager::OnWindowHierarchyChanged(
82 const WindowObserver::HierarchyChangeParams& params) {
83 }
84
OnWindowPropertyChanged(aura::Window * window,const void * key,intptr_t old)85 void LockLayoutManager::OnWindowPropertyChanged(aura::Window* window,
86 const void* key,
87 intptr_t old) {
88 }
89
OnWindowStackingChanged(aura::Window * window)90 void LockLayoutManager::OnWindowStackingChanged(aura::Window* window) {
91 }
92
OnWindowDestroying(aura::Window * window)93 void LockLayoutManager::OnWindowDestroying(aura::Window* window) {
94 window->RemoveObserver(this);
95 if (root_window_ == window)
96 root_window_ = NULL;
97 }
98
OnWindowBoundsChanged(aura::Window * window,const gfx::Rect & old_bounds,const gfx::Rect & new_bounds)99 void LockLayoutManager::OnWindowBoundsChanged(aura::Window* window,
100 const gfx::Rect& old_bounds,
101 const gfx::Rect& new_bounds) {
102 if (root_window_ == window) {
103 const wm::WMEvent wm_event(wm::WM_EVENT_DISPLAY_BOUNDS_CHANGED);
104 AdjustWindowsForWorkAreaChange(&wm_event);
105 }
106 }
107
OnVirtualKeyboardStateChanged(bool activated)108 void LockLayoutManager::OnVirtualKeyboardStateChanged(bool activated) {
109 if (keyboard::KeyboardController::GetInstance()) {
110 if (activated) {
111 if (!is_observing_keyboard_) {
112 keyboard::KeyboardController::GetInstance()->AddObserver(this);
113 is_observing_keyboard_ = true;
114 }
115 } else {
116 keyboard::KeyboardController::GetInstance()->RemoveObserver(this);
117 is_observing_keyboard_ = false;
118 }
119 }
120 }
121
OnKeyboardBoundsChanging(const gfx::Rect & new_bounds)122 void LockLayoutManager::OnKeyboardBoundsChanging(const gfx::Rect& new_bounds) {
123 keyboard_bounds_ = new_bounds;
124 OnWindowResized();
125 }
126
AdjustWindowsForWorkAreaChange(const wm::WMEvent * event)127 void LockLayoutManager::AdjustWindowsForWorkAreaChange(
128 const wm::WMEvent* event) {
129 DCHECK(event->type() == wm::WM_EVENT_DISPLAY_BOUNDS_CHANGED ||
130 event->type() == wm::WM_EVENT_WORKAREA_BOUNDS_CHANGED);
131
132 for (aura::Window::Windows::const_iterator it = window_->children().begin();
133 it != window_->children().end();
134 ++it) {
135 wm::GetWindowState(*it)->OnWMEvent(event);
136 }
137 }
138
139 } // namespace ash
140