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
|
// Copyright (c) 2009 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/extensions/extension_browser_event_router.h"
#include "base/json_writer.h"
#include "base/values.h"
#include "chrome/browser/browser.h"
#include "chrome/browser/profile.h"
#include "chrome/browser/extensions/extension.h"
#include "chrome/browser/extensions/extension_message_service.h"
#include "chrome/browser/extensions/extension_tabs_module.h"
#include "chrome/common/notification_service.h"
const char* kOnWindowCreated = "window-created";
const char* kOnWindowRemoved = "window-removed";
const char* kOnTabCreated = "tab-created";
const char* kOnTabMoved = "tab-moved";
const char* kOnTabSelectionChanged = "tab-selection-changed";
const char* kOnTabAttached = "tab-attached";
const char* kOnTabDetached = "tab-detached";
const char* kOnTabRemoved = "tab-removed";
ExtensionBrowserEventRouter* ExtensionBrowserEventRouter::GetInstance() {
return Singleton<ExtensionBrowserEventRouter>::get();
}
static void DispatchEvent(Profile *profile,
const char* event_name,
const std::string json_args) {
ExtensionMessageService::GetInstance(profile->GetRequestContext())->
DispatchEventToRenderers(event_name, json_args);
}
void ExtensionBrowserEventRouter::Init() {
if (initialized_)
return;
NotificationService::current()->AddObserver(this,
NotificationType::BROWSER_OPENED, NotificationService::AllSources());
NotificationService::current()->AddObserver(this,
NotificationType::BROWSER_CLOSED, NotificationService::AllSources());
initialized_ = true;
}
ExtensionBrowserEventRouter::ExtensionBrowserEventRouter()
: initialized_(false) { }
// NotificationObserver
void ExtensionBrowserEventRouter::Observe(NotificationType type,
const NotificationSource& source, const NotificationDetails& details) {
Browser* browser;
switch (type.value) {
case(NotificationType::BROWSER_OPENED) :
browser = Source<Browser>(source).ptr();
browser->tabstrip_model()->AddObserver(this);
BrowserOpened(browser);
break;
case(NotificationType::BROWSER_CLOSED) :
browser = Source<Browser>(source).ptr();
browser->tabstrip_model()->RemoveObserver(this);
BrowserClosed(browser);
break;
default:
NOTREACHED();
break;
}
}
void ExtensionBrowserEventRouter::BrowserOpened(Browser* browser) {
int window_id = ExtensionTabUtil::GetWindowId(browser);
ListValue args;
args.Append(Value::CreateIntegerValue(window_id));
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(browser->profile(), kOnWindowCreated, json_args);
}
void ExtensionBrowserEventRouter::BrowserClosed(Browser* browser) {
int window_id = ExtensionTabUtil::GetWindowId(browser);
ListValue args;
args.Append(Value::CreateIntegerValue(window_id));
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(browser->profile(), kOnWindowRemoved, json_args);
}
void ExtensionBrowserEventRouter::TabInsertedAt(TabContents* contents,
int index,
bool foreground) {
const char* event_name = kOnTabAttached;
// If tab is new, send tab-created event.
int tab_id = ExtensionTabUtil::GetTabId(contents);
if (tab_ids_.find(tab_id) == tab_ids_.end()) {
tab_ids_.insert(tab_id);
event_name = kOnTabCreated;
}
ListValue args;
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"tabId", Value::CreateIntegerValue(tab_id));
object_args->Set(L"windowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(contents)));
object_args->Set(L"index", Value::CreateIntegerValue(index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), event_name, json_args);
}
void ExtensionBrowserEventRouter::TabDetachedAt(TabContents* contents,
int index) {
int tab_id = ExtensionTabUtil::GetTabId(contents);
if (tab_ids_.find(tab_id) == tab_ids_.end()) {
// The tab was removed. Don't send detach event.
return;
}
ListValue args;
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"tabId", Value::CreateIntegerValue(tab_id));
object_args->Set(L"windowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(contents)));
object_args->Set(L"index", Value::CreateIntegerValue(index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabDetached, json_args);
}
void ExtensionBrowserEventRouter::TabClosingAt(TabContents* contents,
int index) {
int tab_id = ExtensionTabUtil::GetTabId(contents);
ListValue args;
args.Append(Value::CreateIntegerValue(tab_id));
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabRemoved, json_args);
int removed_count = tab_ids_.erase(tab_id);
DCHECK(removed_count > 0);
}
void ExtensionBrowserEventRouter::TabSelectedAt(TabContents* old_contents,
TabContents* new_contents,
int index,
bool user_gesture) {
ListValue args;
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"tabId", Value::CreateIntegerValue(
ExtensionTabUtil::GetTabId(new_contents)));
object_args->Set(L"windowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(new_contents)));
object_args->Set(L"index", Value::CreateIntegerValue(index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(new_contents->profile(), kOnTabSelectionChanged, json_args);
}
void ExtensionBrowserEventRouter::TabMoved(TabContents* contents,
int from_index,
int to_index) {
ListValue args;
DictionaryValue *object_args = new DictionaryValue();
object_args->Set(L"tabId", Value::CreateIntegerValue(
ExtensionTabUtil::GetTabId(contents)));
object_args->Set(L"windowId", Value::CreateIntegerValue(
ExtensionTabUtil::GetWindowIdOfTab(contents)));
object_args->Set(L"fromIndex", Value::CreateIntegerValue(from_index));
object_args->Set(L"toIndex", Value::CreateIntegerValue(to_index));
args.Append(object_args);
std::string json_args;
JSONWriter::Write(&args, false, &json_args);
DispatchEvent(contents->profile(), kOnTabMoved, json_args);
}
void ExtensionBrowserEventRouter::TabChangedAt(TabContents* contents,
int index,
bool loading_only) { }
void ExtensionBrowserEventRouter::TabStripEmpty() { }
|
