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// 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 "content/public/browser/message_port_provider.h"
#include "base/basictypes.h"
#include "content/browser/browser_thread_impl.h"
#include "content/browser/message_port_message_filter.h"
#include "content/browser/message_port_service.h"
#include "content/browser/renderer_host/render_process_host_impl.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/common/view_messages.h"
#include "content/public/browser/message_port_delegate.h"
namespace content {
namespace {
void PostMessageOnIOThread(MessagePortMessageFilter* filter,
int routing_id,
ViewMsg_PostMessage_Params* params) {
if (!params->message_port_ids.empty()) {
filter->UpdateMessagePortsWithNewRoutes(params->message_port_ids,
¶ms->new_routing_ids);
}
filter->Send(new ViewMsg_PostMessageEvent(routing_id, *params));
}
} // namespace
// static
void MessagePortProvider::PostMessageToFrame(
WebContents* web_contents,
const base::string16& source_origin,
const base::string16& target_origin,
const base::string16& data,
const std::vector<int>& ports) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
ViewMsg_PostMessage_Params* params = new ViewMsg_PostMessage_Params();
params->is_data_raw_string = true;
params->data = data;
// Blink requires a source frame to transfer ports. This is why a
// source routing id is set here. See WebDOMMessageEvent::initMessageEvent()
params->source_routing_id = web_contents->GetRoutingID();
params->source_origin = source_origin;
params->target_origin = target_origin;
params->message_port_ids = ports;
RenderProcessHostImpl* rph =
static_cast<RenderProcessHostImpl*>(web_contents->GetRenderProcessHost());
MessagePortMessageFilter* mf = rph->message_port_message_filter();
BrowserThread::PostTask(
BrowserThread::IO,
FROM_HERE,
base::Bind(&PostMessageOnIOThread,
make_scoped_refptr(mf),
web_contents->GetRoutingID(),
base::Owned(params)));
}
// static
void MessagePortProvider::CreateMessageChannel(MessagePortDelegate* delegate,
int* port1,
int* port2) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
*port1 = 0;
*port2 = 0;
MessagePortService* msp = MessagePortService::GetInstance();
msp->Create(MSG_ROUTING_NONE, delegate, port1);
msp->Create(MSG_ROUTING_NONE, delegate, port2);
// Update the routing number of the message ports to be equal to the message
// port numbers.
msp->UpdateMessagePort(*port1, delegate, *port1);
msp->UpdateMessagePort(*port2, delegate, *port2);
msp->Entangle(*port1, *port2);
msp->Entangle(*port2, *port1);
}
// static
void MessagePortProvider::PostMessageToPort(
int sender_port_id,
const base::string16& data,
const std::vector<int>& sent_ports) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
MessagePortService* msp = MessagePortService::GetInstance();
msp->PostMessage(sender_port_id, data, sent_ports);
}
// static
void MessagePortProvider::ClosePort(int message_port_id) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
MessagePortService* msp = MessagePortService::GetInstance();
msp->ClosePort(message_port_id);
}
// static
void MessagePortProvider::OnMessagePortDelegateClosing(
MessagePortDelegate* delegate) {
MessagePortService::GetInstance()->OnMessagePortDelegateClosing(delegate);
}
} // namespace content
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