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1 // Copyright (c) 2011 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 "ui/aura_shell/modal_container_layout_manager.h" | |
6 | |
7 #include "base/bind.h" | |
8 #include "ui/aura/client/aura_constants.h" | |
9 #include "ui/aura/event.h" | |
10 #include "ui/aura/root_window.h" | |
11 #include "ui/aura/window.h" | |
12 #include "ui/aura_shell/modality_event_filter.h" | |
13 #include "ui/aura_shell/shell.h" | |
14 #include "ui/aura_shell/window_util.h" | |
15 #include "ui/gfx/canvas.h" | |
16 #include "ui/gfx/compositor/layer.h" | |
17 #include "ui/gfx/compositor/layer_animator.h" | |
18 #include "ui/views/view.h" | |
19 #include "ui/views/widget/widget.h" | |
20 | |
21 namespace aura_shell { | |
22 namespace internal { | |
23 | |
24 namespace { | |
25 | |
26 class ScreenView : public views::View { | |
27 public: | |
28 ScreenView() {} | |
29 virtual ~ScreenView() {} | |
30 | |
31 // Overridden from views::View: | |
32 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE { | |
33 canvas->FillRect(SK_ColorBLACK, GetLocalBounds()); | |
34 } | |
35 | |
36 private: | |
37 DISALLOW_COPY_AND_ASSIGN(ScreenView); | |
38 }; | |
39 | |
40 } // namespace | |
41 | |
42 //////////////////////////////////////////////////////////////////////////////// | |
43 // ModalContainerLayoutManager, public: | |
44 | |
45 ModalContainerLayoutManager::ModalContainerLayoutManager( | |
46 aura::Window* container) | |
47 : container_(container), | |
48 modal_screen_(NULL), | |
49 ALLOW_THIS_IN_INITIALIZER_LIST( | |
50 modality_filter_(new ModalityEventFilter(container, this))) { | |
51 } | |
52 | |
53 ModalContainerLayoutManager::~ModalContainerLayoutManager() { | |
54 } | |
55 | |
56 //////////////////////////////////////////////////////////////////////////////// | |
57 // ModalContainerLayoutManager, aura::LayoutManager implementation: | |
58 | |
59 void ModalContainerLayoutManager::OnWindowResized() { | |
60 if (modal_screen_) { | |
61 modal_screen_->SetBounds(gfx::Rect(0, 0, container_->bounds().width(), | |
62 container_->bounds().height())); | |
63 } | |
64 } | |
65 | |
66 void ModalContainerLayoutManager::OnWindowAddedToLayout( | |
67 aura::Window* child) { | |
68 child->AddObserver(this); | |
69 if (child->GetIntProperty(aura::client::kModalKey)) | |
70 AddModalWindow(child); | |
71 } | |
72 | |
73 void ModalContainerLayoutManager::OnWillRemoveWindowFromLayout( | |
74 aura::Window* child) { | |
75 child->RemoveObserver(this); | |
76 if (child->GetIntProperty(aura::client::kModalKey)) | |
77 RemoveModalWindow(child); | |
78 } | |
79 | |
80 void ModalContainerLayoutManager::OnChildWindowVisibilityChanged( | |
81 aura::Window* child, | |
82 bool visible) { | |
83 } | |
84 | |
85 void ModalContainerLayoutManager::SetChildBounds( | |
86 aura::Window* child, | |
87 const gfx::Rect& requested_bounds) { | |
88 SetChildBoundsDirect(child, requested_bounds); | |
89 } | |
90 | |
91 //////////////////////////////////////////////////////////////////////////////// | |
92 // ModalContainerLayoutManager, aura::WindowObserver implementation: | |
93 | |
94 void ModalContainerLayoutManager::OnWindowPropertyChanged(aura::Window* window, | |
95 const char* key, | |
96 void* old) { | |
97 if (key != aura::client::kModalKey) | |
98 return; | |
99 | |
100 if (window->GetIntProperty(aura::client::kModalKey)) { | |
101 AddModalWindow(window); | |
102 } else if (static_cast<int>(reinterpret_cast<intptr_t>(old))) { | |
103 RemoveModalWindow(window); | |
104 } | |
105 } | |
106 | |
107 //////////////////////////////////////////////////////////////////////////////// | |
108 // ModalContainerLayoutManager, ui::LayerAnimationObserver implementation: | |
109 | |
110 void ModalContainerLayoutManager::OnLayerAnimationEnded( | |
111 const ui::LayerAnimationSequence* sequence) { | |
112 if (modal_screen_ && !modal_screen_->GetNativeView()->layer()->ShouldDraw()) | |
113 DestroyModalScreen(); | |
114 } | |
115 | |
116 void ModalContainerLayoutManager::OnLayerAnimationAborted( | |
117 const ui::LayerAnimationSequence* sequence) { | |
118 } | |
119 | |
120 void ModalContainerLayoutManager::OnLayerAnimationScheduled( | |
121 const ui::LayerAnimationSequence* sequence) { | |
122 } | |
123 | |
124 //////////////////////////////////////////////////////////////////////////////// | |
125 // ModalContainerLayoutManager, ModalityEventFilter::Delegate implementation: | |
126 | |
127 bool ModalContainerLayoutManager::CanWindowReceiveEvents( | |
128 aura::Window* window) { | |
129 return GetActivatableWindow(window) == modal_window(); | |
130 } | |
131 | |
132 //////////////////////////////////////////////////////////////////////////////// | |
133 // ModalContainerLayoutManager, private: | |
134 | |
135 void ModalContainerLayoutManager::AddModalWindow(aura::Window* window) { | |
136 modal_windows_.push_back(window); | |
137 CreateModalScreen(); | |
138 } | |
139 | |
140 void ModalContainerLayoutManager::RemoveModalWindow(aura::Window* window) { | |
141 aura::Window::Windows::iterator it = | |
142 std::find(modal_windows_.begin(), modal_windows_.end(), window); | |
143 if (it != modal_windows_.end()) | |
144 modal_windows_.erase(it); | |
145 | |
146 if (modal_windows_.empty()) | |
147 HideModalScreen(); | |
148 else | |
149 aura_shell::ActivateWindow(modal_window()); | |
150 } | |
151 | |
152 void ModalContainerLayoutManager::CreateModalScreen() { | |
153 if (modal_screen_) | |
154 return; | |
155 modal_screen_ = new views::Widget; | |
156 views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL); | |
157 params.parent = container_; | |
158 params.bounds = gfx::Rect(0, 0, container_->bounds().width(), | |
159 container_->bounds().height()); | |
160 modal_screen_->Init(params); | |
161 modal_screen_->GetNativeView()->SetName( | |
162 "ModalContainerLayoutManager.ModalScreen"); | |
163 modal_screen_->SetContentsView(new ScreenView); | |
164 modal_screen_->GetNativeView()->layer()->SetOpacity(0.0f); | |
165 modal_screen_->GetNativeView()->layer()->GetAnimator()->AddObserver(this); | |
166 | |
167 Shell::GetInstance()->AddRootWindowEventFilter(modality_filter_.get()); | |
168 | |
169 ui::LayerAnimator::ScopedSettings settings( | |
170 modal_screen_->GetNativeView()->layer()->GetAnimator()); | |
171 modal_screen_->Show(); | |
172 modal_screen_->GetNativeView()->layer()->SetOpacity(0.5f); | |
173 container_->StackChildAtTop(modal_screen_->GetNativeView()); | |
174 } | |
175 | |
176 void ModalContainerLayoutManager::DestroyModalScreen() { | |
177 modal_screen_->GetNativeView()->layer()->GetAnimator()->RemoveObserver(this); | |
178 modal_screen_->Close(); | |
179 modal_screen_ = NULL; | |
180 } | |
181 | |
182 void ModalContainerLayoutManager::HideModalScreen() { | |
183 Shell::GetInstance()->RemoveRootWindowEventFilter(modality_filter_.get()); | |
184 ui::LayerAnimator::ScopedSettings settings( | |
185 modal_screen_->GetNativeView()->layer()->GetAnimator()); | |
186 modal_screen_->GetNativeView()->layer()->SetOpacity(0.0f); | |
187 } | |
188 | |
189 } // namespace internal | |
190 } // namespace aura_shell | |
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