Prepare declarativeContent API for new script injection feature. Added Javascript types and functio…

extensions/renderer/dispatcher.cc

 // Copyright 2014 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 "extensions/renderer/dispatcher.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/debug/alias.h"
@@ skipping 158 matching lines @@
 
   void GetChrome(const v8::FunctionCallbackInfo<v8::Value>& args) {
     args.GetReturnValue().Set(GetOrCreateChrome(context()));
   }
 };
 
 }  // namespace
 
 Dispatcher::Dispatcher(DispatcherDelegate* delegate)
     : delegate_(delegate),
-      content_watcher_(new ContentWatcher()),
       source_map_(&ResourceBundle::GetSharedInstance()),
       v8_schema_registry_(new V8SchemaRegistry),
       is_webkit_initialized_(false),
       user_script_set_observer_(this) {
   const CommandLine& command_line = *(CommandLine::ForCurrentProcess());
   is_extension_process_ =
       command_line.HasSwitch(extensions::switches::kExtensionProcess) ||
       command_line.HasSwitch(::switches::kSingleProcess);
 
   if (is_extension_process_) {
@@ skipping 142 matching lines @@
     std::string stylesheet = ResourceBundle::GetSharedInstance()
                                  .GetRawDataResource(IDR_PLATFORM_APP_CSS)
                                  .as_string();
     ReplaceFirstSubstringAfterOffset(
         &stylesheet, 0, "$FONTFAMILY", system_font_family_);
     ReplaceFirstSubstringAfterOffset(
         &stylesheet, 0, "$FONTSIZE", system_font_size_);
     frame->document().insertStyleSheet(WebString::fromUTF8(stylesheet));
   }
 
-  content_watcher_->DidCreateDocumentElement(frame);
+  for (ContentWatcherMap::iterator it = content_watchers_.begin();
+       it != content_watchers_.end(); ++it) {
+    it->second->DidCreateDocumentElement(frame);
+  }
 }
 
 void Dispatcher::DidMatchCSS(
     blink::WebFrame* frame,
     const blink::WebVector<blink::WebString>& newly_matching_selectors,
     const blink::WebVector<blink::WebString>& stopped_matching_selectors) {
-  content_watcher_->DidMatchCSS(
-      frame, newly_matching_selectors, stopped_matching_selectors);
+  for (ContentWatcherMap::iterator it = content_watchers_.begin();
+       it != content_watchers_.end(); ++it) {
+    it->second->DidMatchCSS(
+        frame, newly_matching_selectors, stopped_matching_selectors);
+  }
 }
 
 void Dispatcher::OnExtensionResponse(int request_id,
                                      bool success,
                                      const base::ListValue& response,
                                      const std::string& error) {
   request_sender_->HandleResponse(request_id, success, response, error);
 }
 
 bool Dispatcher::CheckContextAccessToExtensionAPI(
@@ skipping 109 matching lines @@
                       OnSetScriptingWhitelist)
   IPC_MESSAGE_HANDLER(ExtensionMsg_SetSystemFont, OnSetSystemFont)
   IPC_MESSAGE_HANDLER(ExtensionMsg_ShouldSuspend, OnShouldSuspend)
   IPC_MESSAGE_HANDLER(ExtensionMsg_Suspend, OnSuspend)
   IPC_MESSAGE_HANDLER(ExtensionMsg_TransferBlobs, OnTransferBlobs)
   IPC_MESSAGE_HANDLER(ExtensionMsg_Unloaded, OnUnloaded)
   IPC_MESSAGE_HANDLER(ExtensionMsg_UpdatePermissions, OnUpdatePermissions)
   IPC_MESSAGE_HANDLER(ExtensionMsg_UpdateTabSpecificPermissions,
                       OnUpdateTabSpecificPermissions)
   IPC_MESSAGE_HANDLER(ExtensionMsg_UsingWebRequestAPI, OnUsingWebRequestAPI)
-  IPC_MESSAGE_FORWARD(ExtensionMsg_WatchPages,
-                      content_watcher_.get(),
-                      ContentWatcher::OnWatchPages)
+  IPC_MESSAGE_HANDLER(ExtensionMsg_WatchPages,
+                      OnWatchPages)
   IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void Dispatcher::WebKitInitialized() {
   // For extensions, we want to ensure we call the IdleHandler every so often,
   // even if the extension keeps up activity.
   if (is_extension_process_) {
@@ skipping 286 matching lines @@
 void Dispatcher::OnUsingWebRequestAPI(bool webrequest_used) {
   delegate_->HandleWebRequestAPIUsage(webrequest_used);
 }
 
 void Dispatcher::OnUserScriptsUpdated(
       const std::set<std::string>& changed_extensions,
       const std::vector<UserScript*>& scripts) {
   UpdateActiveExtensions();
 }
 
+void Dispatcher::OnWatchPages(
+    const std::string& event_name,
+    const std::vector<std::string>& css_selectors) {
+  ContentWatcherMap::iterator it = content_watchers_.find(event_name);
+  if (it == content_watchers_.end()) {
+    content_watchers_[event_name] = make_linked_ptr(
+        new ContentWatcher(event_name));
+  }
+  content_watchers_[event_name]->OnWatchPages(css_selectors);
+}
+
 void Dispatcher::UpdateActiveExtensions() {
   std::set<std::string> active_extensions = active_extension_ids_;
   user_script_set_->GetActiveExtensionIds(&active_extensions);
   delegate_->OnActiveExtensionsUpdated(active_extensions);
 }
 
 void Dispatcher::InitOriginPermissions(const Extension* extension) {
   delegate_->InitOriginPermissions(extension,
                                    IsExtensionActive(extension->id()));
   UpdateOriginPermissions(
@@ skipping 426 matching lines @@
     return v8::Handle<v8::Object>();
 
   if (bind_name)
     *bind_name = split.back();
 
   return bind_object.IsEmpty() ? AsObjectOrEmpty(GetOrCreateChrome(context))
                                : bind_object;
 }
 
 }  // namespace extensions