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
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
|
// Copyright 2014 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 "chrome/browser/ui/views/session_crashed_bubble_view.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/metrics/field_trial.h"
#include "base/metrics/histogram.h"
#include "base/prefs/pref_service.h"
#include "base/strings/string_util.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/metrics/metrics_reporting_state.h"
#include "chrome/browser/sessions/session_restore.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_list_observer.h"
#include "chrome/browser/ui/startup/startup_browser_creator_impl.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/views/frame/browser_view.h"
#include "chrome/browser/ui/views/toolbar/toolbar_view.h"
#include "chrome/browser/ui/views/toolbar/wrench_toolbar_button.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/chromium_strings.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/installer/util/google_update_settings.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/web_contents.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/views/bubble/bubble_frame_view.h"
#include "ui/views/controls/button/checkbox.h"
#include "ui/views/controls/button/label_button.h"
#include "ui/views/controls/label.h"
#include "ui/views/controls/separator.h"
#include "ui/views/controls/styled_label.h"
#include "ui/views/layout/grid_layout.h"
#include "ui/views/layout/layout_constants.h"
#include "ui/views/widget/widget.h"
using views::GridLayout;
namespace {
// Fixed width of the column holding the description label of the bubble.
const int kWidthOfDescriptionText = 320;
// Distance between checkbox and the text to the right of it.
const int kCheckboxTextDistance = 4;
// The color of the text and background of the sub panel to offer UMA opt-in.
// These values match the BookmarkSyncPromoView colors.
const SkColor kBackgroundColor = SkColorSetRGB(245, 245, 245);
const SkColor kTextColor = SkColorSetRGB(102, 102, 102);
#if !defined(OS_CHROMEOS)
// The Finch study name and group name that enables session crashed bubble UI.
const char kEnableBubbleUIFinchName[] = "EnableSessionCrashedBubbleUI";
const char kDisableBubbleUIGroupPrefix[] = "Disabled";
#endif
enum SessionCrashedBubbleHistogramValue {
SESSION_CRASHED_BUBBLE_SHOWN,
SESSION_CRASHED_BUBBLE_ERROR,
SESSION_CRASHED_BUBBLE_RESTORED,
SESSION_CRASHED_BUBBLE_ALREADY_UMA_OPTIN,
SESSION_CRASHED_BUBBLE_UMA_OPTIN,
SESSION_CRASHED_BUBBLE_HELP,
SESSION_CRASHED_BUBBLE_IGNORED,
SESSION_CRASHED_BUBBLE_OPTIN_BAR_SHOWN,
SESSION_CRASHED_BUBBLE_MAX,
};
void RecordBubbleHistogramValue(SessionCrashedBubbleHistogramValue value) {
UMA_HISTOGRAM_ENUMERATION(
"SessionCrashed.Bubble", value, SESSION_CRASHED_BUBBLE_MAX);
}
// Whether or not the bubble UI should be used.
bool IsBubbleUIEnabled() {
// Function InitiateMetricsReportingChange (called when the user chooses to
// opt-in to UMA) does not support Chrome OS yet, so don't show the bubble on
// Chrome OS.
#if defined(OS_CHROMEOS)
return false;
#else
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
if (command_line.HasSwitch(switches::kDisableSessionCrashedBubble))
return false;
if (command_line.HasSwitch(switches::kEnableSessionCrashedBubble))
return true;
const std::string group_name = base::FieldTrialList::FindFullName(
kEnableBubbleUIFinchName);
// When |group_name| starts with |kDisableBubbleUIGroupPrefix|, disable the
// bubble UI. I.e. the default behavior is bubble enabled unless overridden.
// This is to accommodate potential new group names without needing to change
// the code here.
return !base::StartsWith(group_name, kDisableBubbleUIGroupPrefix,
base::CompareCase::SENSITIVE);
#endif
}
} // namespace
// A helper class that listens to browser removal event.
class SessionCrashedBubbleView::BrowserRemovalObserver
: public chrome::BrowserListObserver {
public:
explicit BrowserRemovalObserver(Browser* browser) : browser_(browser) {
DCHECK(browser_);
BrowserList::AddObserver(this);
}
~BrowserRemovalObserver() override { BrowserList::RemoveObserver(this); }
// Overridden from chrome::BrowserListObserver.
void OnBrowserRemoved(Browser* browser) override {
if (browser == browser_)
browser_ = NULL;
}
Browser* browser() const { return browser_; }
private:
Browser* browser_;
DISALLOW_COPY_AND_ASSIGN(BrowserRemovalObserver);
};
// static
bool SessionCrashedBubbleView::Show(Browser* browser) {
if (!IsBubbleUIEnabled())
return false;
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
if (browser->profile()->IsOffTheRecord())
return true;
// Observes browser removal event and will be deallocated in ShowForReal.
scoped_ptr<BrowserRemovalObserver> browser_observer(
new BrowserRemovalObserver(browser));
// Stats collection only applies to Google Chrome builds.
#if defined(GOOGLE_CHROME_BUILD)
// Schedule a task to run GoogleUpdateSettings::GetCollectStatsConsent() on
// FILE thread, since it does IO. Then, call
// SessionCrashedBubbleView::ShowForReal with the result.
content::BrowserThread::PostTaskAndReplyWithResult(
content::BrowserThread::FILE,
FROM_HERE,
base::Bind(&GoogleUpdateSettings::GetCollectStatsConsent),
base::Bind(&SessionCrashedBubbleView::ShowForReal,
base::Passed(&browser_observer)));
#else
SessionCrashedBubbleView::ShowForReal(browser_observer.Pass(), false);
#endif // defined(GOOGLE_CHROME_BUILD)
return true;
}
// static
void SessionCrashedBubbleView::ShowForReal(
scoped_ptr<BrowserRemovalObserver> browser_observer,
bool uma_opted_in_already) {
// Determine whether or not the UMA opt-in option should be offered. It is
// offered only when it is a Google chrome build, user hasn't opted in yet,
// and the preference is modifiable by the user.
bool offer_uma_optin = false;
#if defined(GOOGLE_CHROME_BUILD)
if (!uma_opted_in_already) {
offer_uma_optin = g_browser_process->local_state()->FindPreference(
prefs::kMetricsReportingEnabled)->IsUserModifiable();
}
#endif // defined(GOOGLE_CHROME_BUILD)
Browser* browser = browser_observer->browser();
if (!browser) {
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_ERROR);
return;
}
views::View* anchor_view =
BrowserView::GetBrowserViewForBrowser(browser)->toolbar()->app_menu();
content::WebContents* web_contents =
browser->tab_strip_model()->GetActiveWebContents();
if (!web_contents) {
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_ERROR);
return;
}
SessionCrashedBubbleView* crash_bubble =
new SessionCrashedBubbleView(anchor_view, browser, web_contents,
offer_uma_optin);
views::BubbleDelegateView::CreateBubble(crash_bubble)->Show();
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_SHOWN);
if (uma_opted_in_already)
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_ALREADY_UMA_OPTIN);
}
SessionCrashedBubbleView::SessionCrashedBubbleView(
views::View* anchor_view,
Browser* browser,
content::WebContents* web_contents,
bool offer_uma_optin)
: BubbleDelegateView(anchor_view, views::BubbleBorder::TOP_RIGHT),
content::WebContentsObserver(web_contents),
browser_(browser),
web_contents_(web_contents),
restore_button_(NULL),
uma_option_(NULL),
offer_uma_optin_(offer_uma_optin),
started_navigation_(false),
restored_(false) {
set_close_on_deactivate(false);
registrar_.Add(
this,
chrome::NOTIFICATION_TAB_CLOSING,
content::Source<content::NavigationController>(&(
web_contents->GetController())));
browser->tab_strip_model()->AddObserver(this);
}
SessionCrashedBubbleView::~SessionCrashedBubbleView() {
browser_->tab_strip_model()->RemoveObserver(this);
}
views::View* SessionCrashedBubbleView::GetInitiallyFocusedView() {
return restore_button_;
}
base::string16 SessionCrashedBubbleView::GetWindowTitle() const {
return l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_BUBBLE_TITLE);
}
bool SessionCrashedBubbleView::ShouldShowWindowTitle() const {
return true;
}
bool SessionCrashedBubbleView::ShouldShowCloseButton() const {
return true;
}
void SessionCrashedBubbleView::OnWidgetDestroying(views::Widget* widget) {
if (!restored_)
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_IGNORED);
BubbleDelegateView::OnWidgetDestroying(widget);
}
void SessionCrashedBubbleView::Init() {
// Description text label.
views::Label* text_label = new views::Label(
l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_VIEW_MESSAGE));
text_label->SetMultiLine(true);
text_label->SetLineHeight(20);
text_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
text_label->SizeToFit(kWidthOfDescriptionText);
// Restore button.
restore_button_ = new views::LabelButton(
this, l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_VIEW_RESTORE_BUTTON));
restore_button_->SetStyle(views::Button::STYLE_BUTTON);
restore_button_->SetIsDefault(true);
GridLayout* layout = new GridLayout(this);
SetLayoutManager(layout);
// Text row.
const int kTextColumnSetId = 0;
views::ColumnSet* cs = layout->AddColumnSet(kTextColumnSetId);
cs->AddPaddingColumn(0, GetBubbleFrameView()->GetTitleInsets().left());
cs->AddColumn(GridLayout::FILL, GridLayout::FILL, 1,
GridLayout::FIXED, kWidthOfDescriptionText, 0);
cs->AddPaddingColumn(0, GetBubbleFrameView()->GetTitleInsets().left());
// Restore button row.
const int kButtonColumnSetId = 1;
cs = layout->AddColumnSet(kButtonColumnSetId);
cs->AddColumn(GridLayout::TRAILING, GridLayout::CENTER, 1,
GridLayout::USE_PREF, 0, 0);
cs->AddPaddingColumn(0, GetBubbleFrameView()->GetTitleInsets().left());
layout->StartRow(0, kTextColumnSetId);
layout->AddView(text_label);
layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
layout->StartRow(0, kButtonColumnSetId);
layout->AddView(restore_button_);
layout->AddPaddingRow(0, views::kRelatedControlVerticalSpacing);
int bottom_margin = 1;
// Metrics reporting option.
if (offer_uma_optin_) {
const int kUMAOptionColumnSetId = 2;
cs = layout->AddColumnSet(kUMAOptionColumnSetId);
cs->AddColumn(
GridLayout::FILL, GridLayout::FILL, 1, GridLayout::USE_PREF, 0, 0);
layout->StartRow(1, kUMAOptionColumnSetId);
layout->AddView(new views::Separator(views::Separator::HORIZONTAL));
layout->StartRow(1, kUMAOptionColumnSetId);
layout->AddView(CreateUMAOptinView());
// Since the UMA opt-in row has a different background than the default
// background color of bubbles, the bottom margin has to be 0 to make sure
// the background extends to the bottom edge of the bubble.
bottom_margin = 0;
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_OPTIN_BAR_SHOWN);
}
set_margins(gfx::Insets(1, 0, bottom_margin, 0));
Layout();
}
views::View* SessionCrashedBubbleView::CreateUMAOptinView() {
// Checkbox for metric reporting setting.
// Since the text to the right of the checkbox can't be a simple string (needs
// a hyperlink in it), this checkbox contains an empty string as its label,
// and the real text will be added as a separate view.
uma_option_ = new views::Checkbox(base::string16());
uma_option_->SetChecked(false);
// The text to the right of the checkbox.
size_t offset;
base::string16 link_text =
l10n_util::GetStringUTF16(IDS_SESSION_CRASHED_BUBBLE_UMA_LINK_TEXT);
base::string16 uma_text = l10n_util::GetStringFUTF16(
IDS_SESSION_CRASHED_VIEW_UMA_OPTIN,
link_text,
&offset);
views::StyledLabel* uma_label = new views::StyledLabel(uma_text, this);
views::StyledLabel::RangeStyleInfo link_style =
views::StyledLabel::RangeStyleInfo::CreateForLink();
link_style.font_style = gfx::Font::NORMAL;
uma_label->AddStyleRange(gfx::Range(offset, offset + link_text.length()),
link_style);
views::StyledLabel::RangeStyleInfo uma_style;
uma_style.color = kTextColor;
gfx::Range before_link_range(0, offset);
if (!before_link_range.is_empty())
uma_label->AddStyleRange(before_link_range, uma_style);
gfx::Range after_link_range(offset + link_text.length(), uma_text.length());
if (!after_link_range.is_empty())
uma_label->AddStyleRange(after_link_range, uma_style);
// Shift the text down by 1px to align with the checkbox.
uma_label->SetBorder(views::Border::CreateEmptyBorder(1, 0, 0, 0));
// Create a view to hold the checkbox and the text.
views::View* uma_view = new views::View();
GridLayout* uma_layout = new GridLayout(uma_view);
uma_view->SetLayoutManager(uma_layout);
uma_view->set_background(
views::Background::CreateSolidBackground(kBackgroundColor));
int inset_left = GetBubbleFrameView()->GetTitleInsets().left();
// Bottom inset for UMA opt-in view in pixels.
const int kUMAOptinViewBottomInset = 10;
uma_layout->SetInsets(views::kRelatedControlVerticalSpacing, inset_left,
kUMAOptinViewBottomInset, inset_left);
const int kReportColumnSetId = 0;
views::ColumnSet* cs = uma_layout->AddColumnSet(kReportColumnSetId);
cs->AddColumn(GridLayout::CENTER, GridLayout::LEADING, 0,
GridLayout::USE_PREF, 0, 0);
cs->AddPaddingColumn(0, kCheckboxTextDistance);
cs->AddColumn(GridLayout::FILL, GridLayout::FILL, 0,
GridLayout::FIXED, kWidthOfDescriptionText, 0);
uma_layout->StartRow(0, kReportColumnSetId);
uma_layout->AddView(uma_option_);
uma_layout->AddView(uma_label);
return uma_view;
}
void SessionCrashedBubbleView::ButtonPressed(views::Button* sender,
const ui::Event& event) {
DCHECK_EQ(sender, restore_button_);
RestorePreviousSession(sender);
}
void SessionCrashedBubbleView::StyledLabelLinkClicked(const gfx::Range& range,
int event_flags) {
browser_->OpenURL(content::OpenURLParams(
GURL("https://support.google.com/chrome/answer/96817"),
content::Referrer(),
NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_LINK,
false));
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_HELP);
}
void SessionCrashedBubbleView::DidStartNavigationToPendingEntry(
const GURL& url,
content::NavigationController::ReloadType reload_type) {
started_navigation_ = true;
}
void SessionCrashedBubbleView::DidFinishLoad(
content::RenderFrameHost* render_frame_host,
const GURL& validated_url) {
if (started_navigation_)
CloseBubble();
}
void SessionCrashedBubbleView::WasShown() {
GetWidget()->Show();
}
void SessionCrashedBubbleView::WasHidden() {
GetWidget()->Hide();
}
void SessionCrashedBubbleView::Observe(
int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
if (type == chrome::NOTIFICATION_TAB_CLOSING)
CloseBubble();
}
void SessionCrashedBubbleView::TabDetachedAt(content::WebContents* contents,
int index) {
if (web_contents_ == contents)
CloseBubble();
}
void SessionCrashedBubbleView::RestorePreviousSession(views::Button* sender) {
SessionRestore::RestoreSessionAfterCrash(browser_);
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_RESTORED);
restored_ = true;
// Record user's choice for opt-in in to UMA.
// There's no opt-out choice in the crash restore bubble.
if (uma_option_ && uma_option_->checked()) {
InitiateMetricsReportingChange(true, OnMetricsReportingCallbackType());
RecordBubbleHistogramValue(SESSION_CRASHED_BUBBLE_UMA_OPTIN);
}
CloseBubble();
}
void SessionCrashedBubbleView::CloseBubble() {
GetWidget()->Close();
}
|