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// Copyright (c) 2012 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.
#ifndef CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_CHANNEL_MANAGER_H_
#define CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_CHANNEL_MANAGER_H_
#pragma once
#include <set>
#include "base/id_map.h"
#include "content/public/renderer/render_process_observer.h"
#include "content/renderer/browser_plugin/guest_to_embedder_channel.h"
#include "content/renderer/render_view_impl.h"
class GuestToEmbedderChannel;
struct ViewMsg_New_Params;
namespace content {
// BrowserPluginChannelManager manages the lifetime of GuestToEmbedderChannels.
// When a new RenderView is requested, it checks the embedder channel name
// in ViewMsg_New_Params and decides whether to reuse an existing channel or
// create a new channel. On the guest renderer process, it informs a
// RenderView once a channel has been established with its embedder.
// On the embedder side, it tells BrowserPlugin to load the guest
// PluginInstance once a channel has been established.
class BrowserPluginChannelManager
: public RenderProcessObserver {
public:
BrowserPluginChannelManager();
virtual ~BrowserPluginChannelManager();
void CreateRenderView(const ViewMsg_New_Params& params);
void ReportChannelToEmbedder(
RenderViewImpl* render_view,
const IPC::ChannelHandle& embedder_channel_handle,
const std::string& embedder_channel_name,
int embedder_container_id);
// Get the GuestToEmbedderChannel associated with the given
// embedder_channel_name.
GuestToEmbedderChannel* GetChannelByName(
const std::string& embedder_channel_name);
// Remove the pointer to the GuestToEmbedderChannel associated with the given
// routing_id.
void RemoveChannelByName(const std::string& embedder_channel_name);
void GuestReady(PP_Instance instance,
const std::string& embedder_channel_name,
int embedder_container_id);
private:
typedef std::map<std::string, scoped_refptr<GuestToEmbedderChannel> >
EmbedderChannelNameToChannelMap;
void OnLoadGuest(int instance_id,
int guest_renderer_id,
const IPC::ChannelHandle& channel_handle);
void OnAdvanceFocus(int instance_id, bool reverse);
// RenderProcessObserver override. Call on render thread.
virtual bool OnControlMessageReceived(const IPC::Message& message) OVERRIDE;
// Map from Host process ID to GuestToEmbedderChannel
EmbedderChannelNameToChannelMap embedder_channels_;
// Map from <embedder_channel_name, embedder_container_id> to RenderViewImpl
// that points to RenderViewImpl guests that have been constructed but don't
// have a PP_Instance and so they aren't yet ready to composite.
std::map<std::pair<std::string, int>,
base::WeakPtr<RenderViewImpl> > pending_guests_;
DISALLOW_COPY_AND_ASSIGN(BrowserPluginChannelManager);
};
} // namespace content
#endif // CONTENT_RENDERER_BROWSER_PLUGIN_BROWSER_PLUGIN_CHANNEL_MANAGER_H_
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