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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/frame_messages.h"
#include "content/public/browser/message_port_delegate.h"
namespace content {
// static
void MessagePortProvider::PostMessageToFrame(
WebContents* web_contents,
const base::string16& source_origin,
const base::string16& target_origin,
const base::string16& data,
const std::vector<TransferredMessagePort>& ports) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
FrameMsg_PostMessage_Params 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()
// TODO(alexmos, sgurun): Clean this up once crbug.com/473258 is fixed.
// Once message ports can work with a null source frame,
// source_view_routing_id can be removed, and this can just pass in
// MSG_ROUTING_NONE for the source frame.
params.source_view_routing_id = web_contents->GetRoutingID();
params.source_routing_id = MSG_ROUTING_NONE;
params.source_origin = source_origin;
params.target_origin = target_origin;
params.message_ports = ports;
RenderProcessHostImpl* rph =
static_cast<RenderProcessHostImpl*>(web_contents->GetRenderProcessHost());
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&MessagePortMessageFilter::RouteMessageEventWithMessagePorts,
rph->message_port_message_filter(),
web_contents->GetMainFrame()->GetRoutingID(), 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 MessagePortMessage& message,
const std::vector<TransferredMessagePort>& sent_ports) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
MessagePortService* msp = MessagePortService::GetInstance();
msp->PostMessage(sender_port_id, message, 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::HoldMessages(int message_port_id) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
MessagePortService* msp = MessagePortService::GetInstance();
msp->HoldMessages(message_port_id);
}
// static
void MessagePortProvider::ReleaseMessages(int message_port_id) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
MessagePortService* msp = MessagePortService::GetInstance();
msp->ReleaseMessages(message_port_id);
}
// static
void MessagePortProvider::OnMessagePortDelegateClosing(
MessagePortDelegate* delegate) {
MessagePortService::GetInstance()->OnMessagePortDelegateClosing(delegate);
}
// static
void MessagePortProvider::UpdateMessagePort(int message_port_id,
MessagePortDelegate* delegate) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
MessagePortService::GetInstance()->UpdateMessagePort(message_port_id,
delegate,
message_port_id);
}
} // namespace content
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