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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
|
// Copyright (c) 2013 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 "ui/message_center/views/toast_contents_view.h"
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "ui/accessibility/ax_view_state.h"
#include "ui/gfx/animation/animation_delegate.h"
#include "ui/gfx/animation/slide_animation.h"
#include "ui/gfx/display.h"
#include "ui/gfx/screen.h"
#include "ui/message_center/message_center_style.h"
#include "ui/message_center/notification.h"
#include "ui/message_center/views/message_popup_collection.h"
#include "ui/message_center/views/message_view.h"
#include "ui/views/background.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_delegate.h"
#if defined(OS_WIN) && defined(USE_ASH)
#include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
#endif
using gfx::Screen;
namespace message_center {
namespace {
// The width of a toast before animated reveal and after closing.
const int kClosedToastWidth = 5;
// FadeIn/Out look a bit better if they are slightly longer then default slide.
const int kFadeInOutDuration = 200;
} // namespace.
// static
gfx::Size ToastContentsView::GetToastSizeForView(const views::View* view) {
int width = kNotificationWidth + view->GetInsets().width();
return gfx::Size(width, view->GetHeightForWidth(width));
}
ToastContentsView::ToastContentsView(
const std::string& notification_id,
base::WeakPtr<MessagePopupCollection> collection)
: collection_(collection),
id_(notification_id),
is_animating_bounds_(false),
is_closing_(false),
closing_animation_(NULL) {
set_notify_enter_exit_on_child(true);
// Sets the transparent background. Then, when the message view is slid out,
// the whole toast seems to slide although the actual bound of the widget
// remains. This is hacky but easier to keep the consistency.
set_background(views::Background::CreateSolidBackground(0, 0, 0, 0));
fade_animation_.reset(new gfx::SlideAnimation(this));
fade_animation_->SetSlideDuration(kFadeInOutDuration);
CreateWidget(collection->parent());
}
// This is destroyed when the toast window closes.
ToastContentsView::~ToastContentsView() {
if (collection_)
collection_->ForgetToast(this);
}
void ToastContentsView::SetContents(MessageView* view,
bool a11y_feedback_for_updates) {
bool already_has_contents = child_count() > 0;
RemoveAllChildViews(true);
AddChildView(view);
preferred_size_ = GetToastSizeForView(view);
Layout();
// If it has the contents already, this invocation means an update of the
// popup toast, and the new contents should be read through a11y feature.
// The notification type should be ALERT, otherwise the accessibility message
// won't be read for this view which returns ROLE_WINDOW.
if (already_has_contents && a11y_feedback_for_updates)
NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, false);
}
void ToastContentsView::UpdateContents(const Notification& notification,
bool a11y_feedback_for_updates) {
DCHECK_GT(child_count(), 0);
MessageView* message_view = static_cast<MessageView*>(child_at(0));
message_view->UpdateWithNotification(notification);
if (a11y_feedback_for_updates)
NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, false);
}
void ToastContentsView::RevealWithAnimation(gfx::Point origin) {
// Place/move the toast widgets. Currently it stacks the widgets from the
// right-bottom of the work area.
// TODO(mukai): allow to specify the placement policy from outside of this
// class. The policy should be specified from preference on Windows, or
// the launcher alignment on ChromeOS.
origin_ = gfx::Point(origin.x() - preferred_size_.width(),
origin.y() - preferred_size_.height());
gfx::Rect stable_bounds(origin_, preferred_size_);
SetBoundsInstantly(GetClosedToastBounds(stable_bounds));
StartFadeIn();
SetBoundsWithAnimation(stable_bounds);
}
void ToastContentsView::CloseWithAnimation() {
if (is_closing_)
return;
is_closing_ = true;
StartFadeOut();
}
void ToastContentsView::SetBoundsInstantly(gfx::Rect new_bounds) {
if (new_bounds == bounds())
return;
origin_ = new_bounds.origin();
if (!GetWidget())
return;
GetWidget()->SetBounds(new_bounds);
}
void ToastContentsView::SetBoundsWithAnimation(gfx::Rect new_bounds) {
if (new_bounds == bounds())
return;
origin_ = new_bounds.origin();
if (!GetWidget())
return;
// This picks up the current bounds, so if there was a previous animation
// half-done, the next one will pick up from the current location.
// This is the only place that should query current location of the Widget
// on screen, the rest should refer to the bounds_.
animated_bounds_start_ = GetWidget()->GetWindowBoundsInScreen();
animated_bounds_end_ = new_bounds;
if (collection_)
collection_->IncrementDeferCounter();
if (bounds_animation_.get())
bounds_animation_->Stop();
bounds_animation_.reset(new gfx::SlideAnimation(this));
bounds_animation_->Show();
}
void ToastContentsView::StartFadeIn() {
// The decrement is done in OnBoundsAnimationEndedOrCancelled callback.
if (collection_)
collection_->IncrementDeferCounter();
fade_animation_->Stop();
GetWidget()->SetOpacity(0);
GetWidget()->ShowInactive();
fade_animation_->Reset(0);
fade_animation_->Show();
}
void ToastContentsView::StartFadeOut() {
// The decrement is done in OnBoundsAnimationEndedOrCancelled callback.
if (collection_)
collection_->IncrementDeferCounter();
fade_animation_->Stop();
closing_animation_ = (is_closing_ ? fade_animation_.get() : NULL);
fade_animation_->Reset(1);
fade_animation_->Hide();
}
void ToastContentsView::OnBoundsAnimationEndedOrCancelled(
const gfx::Animation* animation) {
if (is_closing_ && closing_animation_ == animation && GetWidget()) {
views::Widget* widget = GetWidget();
// TODO(dewittj): This is a workaround to prevent a nasty bug where
// closing a transparent widget doesn't actually remove the window,
// causing entire areas of the screen to become unresponsive to clicks.
// See crbug.com/243469
widget->Hide();
#if defined(OS_WIN)
widget->SetOpacity(0xFF);
#endif
widget->Close();
}
// This cannot be called before GetWidget()->Close(). Decrementing defer count
// will invoke update, which may invoke another close animation with
// incrementing defer counter. Close() after such process will cause a
// mismatch between increment/decrement. See crbug.com/238477
if (collection_)
collection_->DecrementDeferCounter();
}
// gfx::AnimationDelegate
void ToastContentsView::AnimationProgressed(const gfx::Animation* animation) {
if (animation == bounds_animation_.get()) {
gfx::Rect current(animation->CurrentValueBetween(
animated_bounds_start_, animated_bounds_end_));
GetWidget()->SetBounds(current);
} else if (animation == fade_animation_.get()) {
unsigned char opacity =
static_cast<unsigned char>(fade_animation_->GetCurrentValue() * 255);
GetWidget()->SetOpacity(opacity);
}
}
void ToastContentsView::AnimationEnded(const gfx::Animation* animation) {
OnBoundsAnimationEndedOrCancelled(animation);
}
void ToastContentsView::AnimationCanceled(
const gfx::Animation* animation) {
OnBoundsAnimationEndedOrCancelled(animation);
}
// views::WidgetDelegate
views::View* ToastContentsView::GetContentsView() {
return this;
}
void ToastContentsView::WindowClosing() {
if (!is_closing_ && collection_.get())
collection_->ForgetToast(this);
}
void ToastContentsView::OnDisplayChanged() {
views::Widget* widget = GetWidget();
if (!widget)
return;
gfx::NativeView native_view = widget->GetNativeView();
if (!native_view || !collection_.get())
return;
collection_->OnDisplayMetricsChanged(
Screen::GetScreenFor(native_view)->GetDisplayNearestWindow(native_view),
gfx::DisplayObserver::DISPLAY_METRIC_BOUNDS |
gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
}
void ToastContentsView::OnWorkAreaChanged() {
views::Widget* widget = GetWidget();
if (!widget)
return;
gfx::NativeView native_view = widget->GetNativeView();
if (!native_view || !collection_.get())
return;
collection_->OnDisplayMetricsChanged(
Screen::GetScreenFor(native_view)->GetDisplayNearestWindow(native_view),
gfx::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
}
// views::View
void ToastContentsView::OnMouseEntered(const ui::MouseEvent& event) {
if (collection_)
collection_->OnMouseEntered(this);
}
void ToastContentsView::OnMouseExited(const ui::MouseEvent& event) {
if (collection_)
collection_->OnMouseExited(this);
}
void ToastContentsView::Layout() {
if (child_count() > 0) {
child_at(0)->SetBounds(
0, 0, preferred_size_.width(), preferred_size_.height());
}
}
gfx::Size ToastContentsView::GetPreferredSize() const {
return child_count() ? GetToastSizeForView(child_at(0)) : gfx::Size();
}
void ToastContentsView::GetAccessibleState(ui::AXViewState* state) {
if (child_count() > 0)
child_at(0)->GetAccessibleState(state);
state->role = ui::AX_ROLE_WINDOW;
}
void ToastContentsView::ClickOnNotification(
const std::string& notification_id) {
if (collection_)
collection_->ClickOnNotification(notification_id);
}
void ToastContentsView::RemoveNotification(
const std::string& notification_id,
bool by_user) {
if (collection_)
collection_->RemoveNotification(notification_id, by_user);
}
scoped_ptr<ui::MenuModel> ToastContentsView::CreateMenuModel(
const NotifierId& notifier_id,
const base::string16& display_source) {
// Should not reach, the context menu should be handled in
// MessagePopupCollection.
NOTREACHED();
return scoped_ptr<ui::MenuModel>();
}
bool ToastContentsView::HasClickedListener(
const std::string& notification_id) {
if (!collection_)
return false;
return collection_->HasClickedListener(notification_id);
}
void ToastContentsView::ClickOnNotificationButton(
const std::string& notification_id,
int button_index) {
if (collection_)
collection_->ClickOnNotificationButton(notification_id, button_index);
}
void ToastContentsView::CreateWidget(gfx::NativeView parent) {
views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
params.keep_on_top = true;
if (parent)
params.parent = parent;
else
params.top_level = true;
params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
params.delegate = this;
views::Widget* widget = new views::Widget();
widget->set_focus_on_creation(false);
#if defined(OS_WIN) && defined(USE_ASH)
// We want to ensure that this toast always goes to the native desktop,
// not the Ash desktop (since there is already another toast contents view
// there.
if (!params.parent)
params.native_widget = new views::DesktopNativeWidgetAura(widget);
#endif
widget->Init(params);
}
gfx::Rect ToastContentsView::GetClosedToastBounds(gfx::Rect bounds) {
return gfx::Rect(bounds.x() + bounds.width() - kClosedToastWidth,
bounds.y(),
kClosedToastWidth,
bounds.height());
}
} // namespace message_center
|