content/browser/message_port_provider.cc

   1 // Copyright 2014 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 "content/public/browser/message_port_provider.h"
   6
   7 #include "base/basictypes.h"
   8 #include "content/browser/browser_thread_impl.h"
   9 #include "content/browser/message_port_message_filter.h"
  10 #include "content/browser/message_port_service.h"
  11 #include "content/browser/renderer_host/render_process_host_impl.h"
  12 #include "content/browser/renderer_host/render_view_host_impl.h"
  13 #include "content/browser/web_contents/web_contents_impl.h"
  14 #include "content/common/view_messages.h"
  15
  16 namespace content {
  17
  18 void MessagePortProvider::PostMessageToFrame(
  19     WebContents* web_contents,
  20     const base::string16& source_origin,
  21     const base::string16& target_origin,
  22     const base::string16& data,
  23     const std::vector<int>& ports) {
  24   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  25
  26   RenderViewHost* rvh = web_contents->GetRenderViewHost();
  27   if (!rvh)
  28     return;
  29
  30   ViewMsg_PostMessage_Params params;
  31   params.is_data_raw_string = true;
  32   params.data = data;
  33   params.source_routing_id = web_contents->GetRoutingID();
  34   params.source_origin = source_origin;
  35   params.target_origin = target_origin;
  36   RenderProcessHostImpl* rph =
  37       static_cast<RenderProcessHostImpl*>(
  38           web_contents->GetRenderProcessHost());
  39   MessagePortMessageFilter* mf = rph->message_port_message_filter();
  40
  41   if (!ports.empty()) {
  42     params.message_port_ids = ports;
  43     mf->UpdateMessagePortsWithNewRoutes(params.message_port_ids,
  44                                         &params.new_routing_ids);
  45   }
  46   rvh->Send(new ViewMsg_PostMessageEvent(
  47                 web_contents->GetRenderViewHost()->GetRoutingID(),
  48                 params));
  49 }
  50
  51 void MessagePortProvider::CreateMessageChannel(WebContents* web_contents,
  52                                                int* port1,
  53                                                int* port2) {
  54   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
  55
  56   *port1 = 0;
  57   *port2 = 0;
  58
  59   RenderProcessHostImpl* rph =
  60       static_cast<RenderProcessHostImpl*>(
  61           web_contents->GetRenderProcessHost());
  62   MessagePortMessageFilter* mf = rph->message_port_message_filter();
  63   MessagePortService* msp = MessagePortService::GetInstance();
  64   msp->Create(mf->GetNextRoutingID(), mf, port1);
  65   msp->Create(mf->GetNextRoutingID(), mf, port2);
  66 }
  67
  68 } // namespace content