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
|
// 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/infobars/infobar_tab_helper.h"
#include "chrome/browser/tab_contents/infobar.h"
#include "chrome/browser/tab_contents/infobar_delegate.h"
#include "chrome/browser/tab_contents/insecure_content_infobar_delegate.h"
#include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
#include "chrome/common/chrome_notification_types.h"
#include "chrome/common/render_messages.h"
#include "content/common/notification_service.h"
#include "content/browser/tab_contents/tab_contents.h"
InfoBarTabHelper::InfoBarTabHelper(TabContentsWrapper* tab_contents)
: TabContentsObserver(tab_contents->tab_contents()),
infobars_enabled_(true),
tab_contents_wrapper_(tab_contents) {
DCHECK(tab_contents);
}
InfoBarTabHelper::~InfoBarTabHelper() {
// Destroy all remaining InfoBars. It's important to not animate here so that
// we guarantee that we'll delete all delegates before we do anything else.
//
// TODO(pkasting): If there is no InfoBarContainer, this leaks all the
// InfoBarDelegates. This will be fixed once we call CloseSoon() directly on
// Infobars.
RemoveAllInfoBars(false);
}
void InfoBarTabHelper::AddInfoBar(InfoBarDelegate* delegate) {
if (!infobars_enabled_) {
delegate->InfoBarClosed();
return;
}
for (size_t i = 0; i < infobars_.size(); ++i) {
if (GetInfoBarDelegateAt(i)->EqualsDelegate(delegate)) {
delegate->InfoBarClosed();
return;
}
}
infobars_.push_back(delegate);
NotificationService::current()->Notify(
chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_ADDED,
Source<TabContentsWrapper>(tab_contents_wrapper_),
Details<InfoBarAddedDetails>(delegate));
// Add ourselves as an observer for navigations the first time a delegate is
// added. We use this notification to expire InfoBars that need to expire on
// page transitions.
if (infobars_.size() == 1) {
registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
Source<NavigationController>(&tab_contents()->controller()));
}
}
void InfoBarTabHelper::RemoveInfoBar(InfoBarDelegate* delegate) {
RemoveInfoBarInternal(delegate, true);
}
void InfoBarTabHelper::ReplaceInfoBar(InfoBarDelegate* old_delegate,
InfoBarDelegate* new_delegate) {
if (!infobars_enabled_) {
AddInfoBar(new_delegate); // Deletes the delegate.
return;
}
size_t i;
for (i = 0; i < infobars_.size(); ++i) {
if (GetInfoBarDelegateAt(i) == old_delegate)
break;
}
DCHECK_LT(i, infobars_.size());
infobars_.insert(infobars_.begin() + i, new_delegate);
old_delegate->clear_owner();
InfoBarReplacedDetails replaced_details(old_delegate, new_delegate);
NotificationService::current()->Notify(
chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REPLACED,
Source<TabContentsWrapper>(tab_contents_wrapper_),
Details<InfoBarReplacedDetails>(&replaced_details));
infobars_.erase(infobars_.begin() + i + 1);
}
InfoBarDelegate* InfoBarTabHelper::GetInfoBarDelegateAt(size_t index) {
return infobars_[index];
}
void InfoBarTabHelper::RemoveInfoBarInternal(InfoBarDelegate* delegate,
bool animate) {
if (!infobars_enabled_) {
DCHECK(infobars_.empty());
return;
}
size_t i;
for (i = 0; i < infobars_.size(); ++i) {
if (GetInfoBarDelegateAt(i) == delegate)
break;
}
DCHECK_LT(i, infobars_.size());
InfoBarDelegate* infobar = infobars_[i];
infobar->clear_owner();
InfoBarRemovedDetails removed_details(infobar, animate);
NotificationService::current()->Notify(
chrome::NOTIFICATION_TAB_CONTENTS_INFOBAR_REMOVED,
Source<TabContentsWrapper>(tab_contents_wrapper_),
Details<InfoBarRemovedDetails>(&removed_details));
infobars_.erase(infobars_.begin() + i);
// Remove ourselves as an observer if we are tracking no more InfoBars.
if (infobars_.empty()) {
registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_COMMITTED,
Source<NavigationController>(&tab_contents()->controller()));
}
}
void InfoBarTabHelper::RemoveAllInfoBars(bool animate) {
while (!infobars_.empty())
RemoveInfoBarInternal(GetInfoBarDelegateAt(infobar_count() - 1), animate);
}
void InfoBarTabHelper::OnDidBlockDisplayingInsecureContent() {
// At most one infobar and do not supersede the stronger running content bar.
for (size_t i = 0; i < infobars_.size(); ++i) {
if (GetInfoBarDelegateAt(i)->AsInsecureContentInfoBarDelegate())
return;
}
AddInfoBar(new InsecureContentInfoBarDelegate(tab_contents_wrapper_,
InsecureContentInfoBarDelegate::DISPLAY));
}
void InfoBarTabHelper::OnDidBlockRunningInsecureContent() {
// At most one infobar superseding any weaker displaying content bar.
for (size_t i = 0; i < infobars_.size(); ++i) {
InsecureContentInfoBarDelegate* delegate =
GetInfoBarDelegateAt(i)->AsInsecureContentInfoBarDelegate();
if (delegate) {
if (delegate->type() != InsecureContentInfoBarDelegate::RUN) {
ReplaceInfoBar(delegate, new InsecureContentInfoBarDelegate(
tab_contents_wrapper_,
InsecureContentInfoBarDelegate::RUN));
}
return;
}
}
AddInfoBar(new InsecureContentInfoBarDelegate(tab_contents_wrapper_,
InsecureContentInfoBarDelegate::RUN));
}
void InfoBarTabHelper::RenderViewGone() {
RemoveAllInfoBars(true);
}
bool InfoBarTabHelper::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(InfoBarTabHelper, message)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_DidBlockDisplayingInsecureContent,
OnDidBlockDisplayingInsecureContent)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_DidBlockRunningInsecureContent,
OnDidBlockRunningInsecureContent)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void InfoBarTabHelper::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
switch (type) {
case content::NOTIFICATION_NAV_ENTRY_COMMITTED: {
DCHECK(&tab_contents()->controller() ==
Source<NavigationController>(source).ptr());
content::LoadCommittedDetails& committed_details =
*(Details<content::LoadCommittedDetails>(details).ptr());
// NOTE: It is not safe to change the following code to count upwards or
// use iterators, as the RemoveInfoBar() call synchronously modifies our
// delegate list.
for (size_t i = infobars_.size(); i > 0; --i) {
InfoBarDelegate* delegate = GetInfoBarDelegateAt(i - 1);
if (delegate->ShouldExpire(committed_details))
RemoveInfoBar(delegate);
}
break;
}
default:
NOTREACHED();
}
}
|
