src/chrome/renderer/extensions/tabs_custom_bindings.cc

   1 // Copyright (c) 2012 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/renderer/extensions/tabs_custom_bindings.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "content/public/renderer/render_view.h"
  11 #include "extensions/common/extension_messages.h"
  12 #include "extensions/renderer/script_context.h"
  13 #include "v8/include/v8.h"
  14
  15 namespace extensions {
  16
  17 TabsCustomBindings::TabsCustomBindings(ScriptContext* context)
  18     : ObjectBackedNativeHandler(context) {
  19   RouteFunction("OpenChannelToTab",
  20       base::Bind(&TabsCustomBindings::OpenChannelToTab,
  21                  base::Unretained(this)));
  22 }
  23
  24 void TabsCustomBindings::OpenChannelToTab(
  25     const v8::FunctionCallbackInfo<v8::Value>& args) {
  26   // Get the current RenderView so that we can send a routed IPC message from
  27   // the correct source.
  28   content::RenderView* renderview = context()->GetRenderView();
  29   if (!renderview)
  30     return;
  31
  32   if (args.Length() >= 3 && args[0]->IsInt32() && args[1]->IsString() &&
  33       args[2]->IsString()) {
  34     int tab_id = args[0]->Int32Value();
  35     std::string extension_id = *v8::String::Utf8Value(args[1]->ToString());
  36     std::string channel_name = *v8::String::Utf8Value(args[2]->ToString());
  37     int port_id = -1;
  38     renderview->Send(new ExtensionHostMsg_OpenChannelToTab(
  39       renderview->GetRoutingID(), tab_id, extension_id, channel_name,
  40         &port_id));
  41     args.GetReturnValue().Set(static_cast<int32_t>(port_id));
  42     return;
  43   }
  44 }
  45
  46 }  // namespace extensions