1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
// Copyright (c) 2012 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.
#include "ash/wm/system_modal_container_layout_manager.h"
#include "ash/ash_switches.h"
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ash/wm/system_modal_container_event_filter.h"
#include "ash/wm/window_animations.h"
#include "ash/wm/window_util.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/client/capture_client.h"
#include "ui/aura/root_window.h"
#include "ui/aura/shared/compound_event_filter.h"
#include "ui/aura/window.h"
#include "ui/base/events/event.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animator.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/gfx/canvas.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace ash {
namespace internal {
namespace {
class ScreenView : public views::View {
public:
ScreenView() {}
virtual ~ScreenView() {}
// Overridden from views::View:
virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE {
canvas->FillRect(GetLocalBounds(), GetOverlayColor());
}
private:
SkColor GetOverlayColor() {
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAuraGoogleDialogFrames)) {
return SK_ColorWHITE;
}
return SK_ColorBLACK;
}
DISALLOW_COPY_AND_ASSIGN(ScreenView);
};
} // namespace
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, public:
SystemModalContainerLayoutManager::SystemModalContainerLayoutManager(
aura::Window* container)
: container_(container),
modal_screen_(NULL),
ALLOW_THIS_IN_INITIALIZER_LIST(modality_filter_(
new SystemModalContainerEventFilter(this))) {
}
SystemModalContainerLayoutManager::~SystemModalContainerLayoutManager() {
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, aura::LayoutManager implementation:
void SystemModalContainerLayoutManager::OnWindowResized() {
if (modal_screen_) {
// Note: we have to set the entire bounds with the screen offset.
modal_screen_->SetBounds(container_->bounds());
}
if (!modal_windows_.empty()) {
aura::Window::Windows::iterator it = modal_windows_.begin();
for (it = modal_windows_.begin(); it != modal_windows_.end(); ++it) {
(*it)->SetBounds((*it)->bounds().AdjustToFit(container_->bounds()));
}
}
}
void SystemModalContainerLayoutManager::OnWindowAddedToLayout(
aura::Window* child) {
DCHECK((modal_screen_ && child == modal_screen_->GetNativeView()) ||
child->type() == aura::client::WINDOW_TYPE_NORMAL ||
child->type() == aura::client::WINDOW_TYPE_POPUP);
child->AddObserver(this);
if (child->GetProperty(aura::client::kModalKey) != ui::MODAL_TYPE_NONE)
AddModalWindow(child);
}
void SystemModalContainerLayoutManager::OnWillRemoveWindowFromLayout(
aura::Window* child) {
child->RemoveObserver(this);
if (child->GetProperty(aura::client::kModalKey) != ui::MODAL_TYPE_NONE)
RemoveModalWindow(child);
}
void SystemModalContainerLayoutManager::OnWindowRemovedFromLayout(
aura::Window* child) {
}
void SystemModalContainerLayoutManager::OnChildWindowVisibilityChanged(
aura::Window* child,
bool visible) {
}
void SystemModalContainerLayoutManager::SetChildBounds(
aura::Window* child,
const gfx::Rect& requested_bounds) {
SetChildBoundsDirect(child, requested_bounds);
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, aura::WindowObserver implementation:
void SystemModalContainerLayoutManager::OnWindowPropertyChanged(
aura::Window* window,
const void* key,
intptr_t old) {
if (key != aura::client::kModalKey)
return;
if (window->GetProperty(aura::client::kModalKey) != ui::MODAL_TYPE_NONE) {
AddModalWindow(window);
} else if (static_cast<ui::ModalType>(old) != ui::MODAL_TYPE_NONE) {
RemoveModalWindow(window);
}
}
void SystemModalContainerLayoutManager::OnWindowDestroying(
aura::Window* window) {
if (modal_screen_ && modal_screen_->GetNativeView() == window)
modal_screen_ = NULL;
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager,
// SystemModalContainerEventFilter::Delegate implementation:
bool SystemModalContainerLayoutManager::CanWindowReceiveEvents(
aura::Window* window) {
// This container can not handle events if the screen is locked and it is not
// above the lock screen layer (crbug.com/110920).
if (ash::Shell::GetInstance()->IsScreenLocked() &&
container_->id() < ash::internal::kShellWindowId_LockScreenContainer)
return true;
return wm::GetActivatableWindow(window) == modal_window();
}
bool SystemModalContainerLayoutManager::IsModalScreen(
aura::Window* window) {
int id = window->parent()->id();
return (id == internal::kShellWindowId_SystemModalContainer ||
id == internal::kShellWindowId_LockSystemModalContainer) &&
window->GetProperty(aura::client::kModalKey) == ui::MODAL_TYPE_NONE;
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, private:
void SystemModalContainerLayoutManager::AddModalWindow(aura::Window* window) {
if (modal_windows_.empty()) {
aura::Window* capture_window = aura::client::GetCaptureWindow(container_);
if (capture_window)
capture_window->ReleaseCapture();
}
modal_windows_.push_back(window);
CreateModalScreen();
}
void SystemModalContainerLayoutManager::RemoveModalWindow(
aura::Window* window) {
aura::Window::Windows::iterator it =
std::find(modal_windows_.begin(), modal_windows_.end(), window);
if (it != modal_windows_.end())
modal_windows_.erase(it);
if (modal_windows_.empty())
DestroyModalScreen();
else
wm::ActivateWindow(modal_window());
}
void SystemModalContainerLayoutManager::CreateModalScreen() {
if (!modal_screen_) {
modal_screen_ = new views::Widget;
views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL);
params.parent = container_;
params.bounds = gfx::Rect(0, 0, container_->bounds().width(),
container_->bounds().height());
modal_screen_->Init(params);
modal_screen_->GetNativeView()->SetName(
"SystemModalContainerLayoutManager.ModalScreen");
modal_screen_->SetContentsView(new ScreenView);
modal_screen_->GetNativeView()->layer()->SetOpacity(0.0f);
Shell::GetInstance()->env_filter()->AddFilter(modality_filter_.get());
}
ui::ScopedLayerAnimationSettings settings(
modal_screen_->GetNativeView()->layer()->GetAnimator());
modal_screen_->Show();
modal_screen_->GetNativeView()->layer()->SetOpacity(0.5f);
container_->StackChildAtTop(modal_screen_->GetNativeView());
}
void SystemModalContainerLayoutManager::DestroyModalScreen() {
Shell::GetInstance()->env_filter()->RemoveFilter(modality_filter_.get());
// modal_screen_ can be NULL when a root window is shutting down
// and OnWindowDestroying is called first.
if (modal_screen_) {
ui::ScopedLayerAnimationSettings settings(
modal_screen_->GetNativeView()->layer()->GetAnimator());
modal_screen_->Close();
settings.AddObserver(
CreateHidingWindowAnimationObserver(modal_screen_->GetNativeView()));
modal_screen_->GetNativeView()->layer()->SetOpacity(0.0f);
modal_screen_ = NULL;
}
}
} // namespace internal
} // namespace ash
|
