Browser plugin: Implement titleChanged event.

content/renderer/browser_plugin/browser_plugin.cc

 // Copyright (c) 2012 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 "content/renderer/browser_plugin/browser_plugin.h"
 
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #if defined (OS_WIN)
 #include "base/sys_info.h"
@@ skipping 24 matching lines @@
 using WebKit::WebPluginParams;
 using WebKit::WebPoint;
 using WebKit::WebString;
 using WebKit::WebRect;
 using WebKit::WebURL;
 using WebKit::WebVector;
 
 namespace content {
 
 namespace {
+
+// Adding a new event?  Update InitializeEvents as well.
 const char kExitEventName[] = "exit";
 const char kIsTopLevel[] = "isTopLevel";
 const char kLoadAbortEventName[] = "loadabort";
 const char kLoadCommitEventName[] = "loadcommit";
 const char kLoadRedirectEventName[] = "loadredirect";
 const char kLoadStartEventName[] = "loadstart";
 const char kLoadStopEventName[] = "loadstop";
+const char kTitleChangeEventName[] = "titlechange";
+
 const char kNewURL[] = "newUrl";
 const char kOldURL[] = "oldUrl";
 const char kPartitionAttribute[] = "partition";
 const char kPersistPrefix[] = "persist:";
 const char kProcessId[] = "processId";
 const char kSrcAttribute[] = "src";
+const char kTitle[] = "title";
 const char kType[] = "type";
 const char kURL[] = "url";
 
 static std::string TerminationStatusToString(base::TerminationStatus status) {
   switch (status) {
     case base::TERMINATION_STATUS_NORMAL_TERMINATION:
       return "normal";
     case base::TERMINATION_STATUS_ABNORMAL_TERMINATION:
       return "abnormal";
     case base::TERMINATION_STATUS_PROCESS_WAS_KILLED:
@@ skipping 178 matching lines @@
   return render_view_->GetWebView()->deviceScaleFactor();
 }
 
 void BrowserPlugin::InitializeEvents() {
   event_listener_map_[kExitEventName] = EventListeners();
   event_listener_map_[kLoadAbortEventName] = EventListeners();
   event_listener_map_[kLoadCommitEventName] = EventListeners();
   event_listener_map_[kLoadRedirectEventName] = EventListeners();
   event_listener_map_[kLoadStartEventName] = EventListeners();
   event_listener_map_[kLoadStopEventName] = EventListeners();
+  event_listener_map_[kTitleChangeEventName] = EventListeners();
 }
 
 void BrowserPlugin::RemoveEventListeners() {
   EventListenerMap::iterator event_listener_map_iter =
       event_listener_map_.begin();
   for (; event_listener_map_iter != event_listener_map_.end();
        ++event_listener_map_iter) {
     EventListeners& listeners =
         event_listener_map_[event_listener_map_iter->first];
     EventListeners::iterator it = listeners.begin();
@@ skipping 286 matching lines @@
   event->Set(v8::String::New(kNewURL, sizeof(kNewURL) - 1),
              v8::String::New(new_url.spec().data(), new_url.spec().size()),
              v8::ReadOnly);
   event->Set(v8::String::New(kIsTopLevel, sizeof(kIsTopLevel) - 1),
              v8::Boolean::New(is_top_level),
              v8::ReadOnly);
 
   TriggerEvent(kLoadRedirectEventName, &event);
 }
 
+void BrowserPlugin::TitleChange(const string16& title) {
+  if (!HasListeners(kTitleChangeEventName))
+    return;
+
+  WebKit::WebElement plugin = container()->element();
+  v8::HandleScope handle_scope;
+  v8::Context::Scope context_scope(
+      plugin.document().frame()->mainWorldScriptContext());
+
+  // Construct the titlechanged event object.
+  v8::Local<v8::Object> event = v8::Object::New();
+  event->Set(v8::String::New(kTitle, sizeof(kTitle) - 1),
+             v8::String::New(title.data(), title.size()),
+             v8::ReadOnly);
+
+  TriggerEvent(kTitleChangeEventName, &event);
+}
+
 void BrowserPlugin::AdvanceFocus(bool reverse) {
   // We do not have a RenderView when we are testing.
   if (render_view_)
     render_view_->GetWebView()->advanceFocus(reverse);
 }
 
 void BrowserPlugin::GuestContentWindowReady(int content_window_routing_id) {
   DCHECK(content_window_routing_id != MSG_ROUTING_NONE);
   content_window_routing_id_ = content_window_routing_id;
 }
@@ skipping 318 matching lines @@
                                                  void* notify_data) {
 }
 
 void BrowserPlugin::didFailLoadingFrameRequest(
     const WebKit::WebURL& url,
     void* notify_data,
     const WebKit::WebURLError& error) {
 }
 
 }  // namespace content