blob: dbd86030df0db4dc26692023ddf6289d9a9d2f7a (
plain)
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
|
// Copyright (c) 2011 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/alternate_error_tab_observer.h"
#include "chrome/browser/google/google_util.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/pref_names.h"
#include "content/browser/renderer_host/render_view_host.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/public/browser/notification_service.h"
AlternateErrorPageTabObserver::AlternateErrorPageTabObserver(
TabContentsWrapper* wrapper)
: TabContentsObserver(wrapper->tab_contents()),
wrapper_(wrapper) {
PrefService* prefs = wrapper_->profile()->GetPrefs();
if (prefs) {
pref_change_registrar_.Init(prefs);
pref_change_registrar_.Add(prefs::kAlternateErrorPagesEnabled, this);
}
registrar_.Add(this, chrome::NOTIFICATION_GOOGLE_URL_UPDATED,
content::NotificationService::AllSources());
}
AlternateErrorPageTabObserver::~AlternateErrorPageTabObserver() {
}
// static
void AlternateErrorPageTabObserver::RegisterUserPrefs(PrefService* prefs) {
prefs->RegisterBooleanPref(prefs::kAlternateErrorPagesEnabled,
true,
PrefService::SYNCABLE_PREF);
}
////////////////////////////////////////////////////////////////////////////////
// TabContentsObserver overrides
void AlternateErrorPageTabObserver::RenderViewCreated(
RenderViewHost* render_view_host) {
UpdateAlternateErrorPageURL(render_view_host);
}
////////////////////////////////////////////////////////////////////////////////
// content::NotificationObserver overrides
void AlternateErrorPageTabObserver::Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
switch (type) {
case chrome::NOTIFICATION_GOOGLE_URL_UPDATED:
UpdateAlternateErrorPageURL(tab_contents()->GetRenderViewHost());
break;
case chrome::NOTIFICATION_PREF_CHANGED: {
std::string* pref_name = content::Details<std::string>(details).ptr();
DCHECK(content::Source<PrefService>(source).ptr() ==
wrapper_->profile()->GetPrefs());
if (*pref_name == prefs::kAlternateErrorPagesEnabled) {
UpdateAlternateErrorPageURL(tab_contents()->GetRenderViewHost());
} else {
NOTREACHED() << "unexpected pref change notification" << *pref_name;
}
break;
}
default:
NOTREACHED();
}
}
////////////////////////////////////////////////////////////////////////////////
// Internal helpers
GURL AlternateErrorPageTabObserver::GetAlternateErrorPageURL() const {
GURL url;
// Disable alternate error pages when in Incognito mode.
if (wrapper_->profile()->IsOffTheRecord())
return url;
PrefService* prefs = wrapper_->profile()->GetPrefs();
if (prefs->GetBoolean(prefs::kAlternateErrorPagesEnabled)) {
url = google_util::AppendGoogleLocaleParam(
GURL(google_util::kLinkDoctorBaseURL));
url = google_util::AppendGoogleTLDParam(url);
}
return url;
}
void AlternateErrorPageTabObserver::UpdateAlternateErrorPageURL(
RenderViewHost* rvh) {
rvh->SetAltErrorPageURL(GetAlternateErrorPageURL());
}
|
