1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "chrome/browser/extensions/extension_devtools_bridge.h"
6
7 #include "base/json/json_writer.h"
8 #include "base/message_loop.h"
9 #include "base/string_util.h"
10 #include "base/stringprintf.h"
11 #include "base/values.h"
12 #include "chrome/browser/debugger/devtools_manager.h"
13 #include "chrome/browser/extensions/extension_devtools_events.h"
14 #include "chrome/browser/extensions/extension_devtools_manager.h"
15 #include "chrome/browser/extensions/extension_event_router.h"
16 #include "chrome/browser/extensions/extension_tabs_module.h"
17 #include "chrome/browser/profiles/profile.h"
18 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
19 #include "chrome/common/devtools_messages.h"
20 #include "content/browser/tab_contents/tab_contents.h"
21
ExtensionDevToolsBridge(int tab_id,Profile * profile)22 ExtensionDevToolsBridge::ExtensionDevToolsBridge(int tab_id,
23 Profile* profile)
24 : tab_id_(tab_id),
25 profile_(profile),
26 on_page_event_name_(
27 ExtensionDevToolsEvents::OnPageEventNameForTab(tab_id)),
28 on_tab_close_event_name_(
29 ExtensionDevToolsEvents::OnTabCloseEventNameForTab(tab_id)) {
30 extension_devtools_manager_ = profile_->GetExtensionDevToolsManager();
31 DCHECK(extension_devtools_manager_.get());
32 }
33
~ExtensionDevToolsBridge()34 ExtensionDevToolsBridge::~ExtensionDevToolsBridge() {
35 }
36
FormatDevToolsMessage(int id,const std::string & method)37 static std::string FormatDevToolsMessage(int id, const std::string& method) {
38 DictionaryValue message;
39 message.SetInteger("id", id);
40 message.SetString("method", method);
41
42 std::string json;
43 base::JSONWriter::Write(&message, false, &json);
44 return json;
45 }
46
RegisterAsDevToolsClientHost()47 bool ExtensionDevToolsBridge::RegisterAsDevToolsClientHost() {
48 DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
49
50 Browser* browser;
51 TabStripModel* tab_strip;
52 TabContentsWrapper* contents;
53 int tab_index;
54 if (ExtensionTabUtil::GetTabById(tab_id_, profile_, true,
55 &browser, &tab_strip,
56 &contents, &tab_index)) {
57 DevToolsManager* devtools_manager = DevToolsManager::GetInstance();
58 if (devtools_manager->GetDevToolsClientHostFor(contents->
59 render_view_host()) != NULL)
60 return false;
61
62 devtools_manager->RegisterDevToolsClientHostFor(
63 contents->render_view_host(), this);
64
65 // Following messages depend on inspector protocol that is not yet
66 // finalized.
67
68 // 1. Report front-end is loaded.
69 devtools_manager->ForwardToDevToolsAgent(
70 this,
71 DevToolsAgentMsg_FrontendLoaded());
72
73 // 2. Start timeline profiler.
74 devtools_manager->ForwardToDevToolsAgent(
75 this,
76 DevToolsAgentMsg_DispatchOnInspectorBackend(
77 FormatDevToolsMessage(2, "Timeline.start")));
78
79 // 3. Enable network resource tracking.
80 devtools_manager->ForwardToDevToolsAgent(
81 this,
82 DevToolsAgentMsg_DispatchOnInspectorBackend(
83 FormatDevToolsMessage(3, "Network.enable")));
84
85 return true;
86 }
87 return false;
88 }
89
UnregisterAsDevToolsClientHost()90 void ExtensionDevToolsBridge::UnregisterAsDevToolsClientHost() {
91 DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
92
93 NotifyCloseListener();
94 }
95
96 // If the tab we are looking at is going away then we fire a closing event at
97 // the extension.
InspectedTabClosing()98 void ExtensionDevToolsBridge::InspectedTabClosing() {
99 DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
100
101 // TODO(knorton): Remove this event in favor of the standard tabs.onRemoved
102 // event in extensions.
103 std::string json("[{}]");
104 profile_->GetExtensionEventRouter()->DispatchEventToRenderers(
105 on_tab_close_event_name_, json, profile_, GURL());
106
107 // This may result in this object being destroyed.
108 extension_devtools_manager_->BridgeClosingForTab(tab_id_);
109 }
110
SendMessageToClient(const IPC::Message & msg)111 void ExtensionDevToolsBridge::SendMessageToClient(const IPC::Message& msg) {
112 IPC_BEGIN_MESSAGE_MAP(ExtensionDevToolsBridge, msg)
113 IPC_MESSAGE_HANDLER(DevToolsClientMsg_DispatchOnInspectorFrontend,
114 OnDispatchOnInspectorFrontend);
115 IPC_MESSAGE_UNHANDLED_ERROR()
116 IPC_END_MESSAGE_MAP()
117 }
118
TabReplaced(TabContentsWrapper * new_tab)119 void ExtensionDevToolsBridge::TabReplaced(TabContentsWrapper* new_tab) {
120 DCHECK_EQ(profile_, new_tab->profile());
121 // We don't update the tab id as it needs to remain the same so that we can
122 // properly unregister.
123 }
124
OnDispatchOnInspectorFrontend(const std::string & data)125 void ExtensionDevToolsBridge::OnDispatchOnInspectorFrontend(
126 const std::string& data) {
127 DCHECK_EQ(MessageLoop::current()->type(), MessageLoop::TYPE_UI);
128
129 std::string json = base::StringPrintf("[%s]", data.c_str());
130 profile_->GetExtensionEventRouter()->DispatchEventToRenderers(
131 on_page_event_name_, json, profile_, GURL());
132 }
133