Refactoring of new IPC-only pepper implementation

content/renderer/pepper/pepper_in_process_resource_creation.cc

 // 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.
 
 #include "content/renderer/pepper/pepper_in_process_resource_creation.h"
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "content/renderer/render_view_impl.h"
-#include "content/renderer/pepper/content_renderer_pepper_host_factory.h"
+#include "content/renderer/pepper/renderer_ppapi_host_impl.h"
+#include "content/renderer/pepper/pepper_in_process_router.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_message_macros.h"
 #include "ppapi/host/ppapi_host.h"
 #include "ppapi/proxy/file_chooser_resource.h"
 #include "ppapi/proxy/ppapi_messages.h"
 #include "ppapi/shared_impl/ppapi_globals.h"
 #include "ppapi/shared_impl/ppapi_permissions.h"
 #include "ppapi/shared_impl/resource_tracker.h"
 #include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
 
 // Note that the code in the creation functions in this file should generally
 // be the same as that in ppapi/proxy/resource_creation_proxy.cc. See
 // pepper_in_process_resource_creation.h for what this file is for.
 
 namespace content {
 
-// PluginResources take a plugin->browser channel in their constructor. When
-// in process, we don't have a per-plugin-module object in the browser. We
-// currently just don't support these resource objects in-process.
-//
-// But to keep things linking, we provide this dummy browser channel. It will
-// just assert if anything attempts to actually send a message.
-class PepperInProcessResourceCreation::DummyBrowserChannel
-    : public IPC::Sender {
- public:
-  DummyBrowserChannel() {}
-  ~DummyBrowserChannel() {}
-
-  // Sender implementation.
-  virtual bool Send(IPC::Message* msg) OVERRIDE {
-    NOTREACHED();
-    delete msg;
-    return false;
-  }
-};
-
-class PepperInProcessResourceCreation::PluginToHostRouter
-    : public IPC::Sender {
- public:
-  PluginToHostRouter(RenderViewImpl* render_view,
-                     PepperInstanceStateAccessor* state,
-                     IPC::Sender* host_to_plugin_sender,
-                     const ppapi::PpapiPermissions& perms);
-  virtual ~PluginToHostRouter() {}
-
-  ppapi::host::PpapiHost& host() { return host_; }
-
-  // Sender implementation.
-  virtual bool Send(IPC::Message* msg) OVERRIDE;
-
- private:
-  void DoSend(IPC::Message* msg);
-
-  base::WeakPtrFactory<PluginToHostRouter> weak_factory_;
-
-  ContentRendererPepperHostFactory factory_;
-  ppapi::host::PpapiHost host_;
-
-  DISALLOW_COPY_AND_ASSIGN(PluginToHostRouter);
-};
-
-PepperInProcessResourceCreation::PluginToHostRouter::PluginToHostRouter(
-    RenderViewImpl* render_view,
-    PepperInstanceStateAccessor* state,
-    IPC::Sender* host_to_plugin_sender,
-    const ppapi::PpapiPermissions& perms)
-    : weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
-      factory_(render_view, perms, state),
-      host_(host_to_plugin_sender, &factory_, perms) {
-}
-
-bool PepperInProcessResourceCreation::PluginToHostRouter::Send(
-    IPC::Message* msg) {
-  // Don't directly call into the message handler to avoid reentrancy. The IPC
-  // systen assumes everything is executed from the message loop, so emulate
-  // the same thing for in-process.
-  MessageLoop::current()->PostTask(FROM_HERE,
-      base::Bind(&PluginToHostRouter::DoSend, weak_factory_.GetWeakPtr(),
-                 base::Owned(msg)));
-  return true;
-}
-
-void PepperInProcessResourceCreation::PluginToHostRouter::DoSend(
-    IPC::Message* msg) {
-  host_.OnMessageReceived(*msg);
-}
-
-// HostToPluginRouter ---------------------------------------------------------
-
-class PepperInProcessResourceCreation::HostToPluginRouter
-    : public IPC::Sender {
- public:
-  HostToPluginRouter();
-  virtual ~HostToPluginRouter() {}
-
-  // Sender implementation.
-  virtual bool Send(IPC::Message* msg) OVERRIDE;
-
- private:
-  void DispatchMsg(IPC::Message* msg);
-
-  void OnMsgResourceReply(
-      const ppapi::proxy::ResourceMessageReplyParams& reply_params,
-      const IPC::Message& nested_msg);
-
-  base::WeakPtrFactory<HostToPluginRouter> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(HostToPluginRouter);
-};
-
-PepperInProcessResourceCreation::HostToPluginRouter::HostToPluginRouter()
-    : weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
-}
-
-bool PepperInProcessResourceCreation::HostToPluginRouter::Send(
-    IPC::Message* msg) {
-  // As in the PluginToHostRouter, dispatch from the message loop.
-  MessageLoop::current()->PostTask(FROM_HERE,
-      base::Bind(&HostToPluginRouter::DispatchMsg,
-                 weak_factory_.GetWeakPtr(),
-                 base::Owned(msg)));
-  return true;
-}
-
-void PepperInProcessResourceCreation::HostToPluginRouter::DispatchMsg(
-    IPC::Message* msg) {
-  // Emulate the proxy by dispatching the relevant message here.
-  IPC_BEGIN_MESSAGE_MAP(HostToPluginRouter, *msg)
-    IPC_MESSAGE_HANDLER(PpapiPluginMsg_ResourceReply, OnMsgResourceReply)
-  IPC_END_MESSAGE_MAP()
-}
-
-void PepperInProcessResourceCreation::HostToPluginRouter::OnMsgResourceReply(
-    const ppapi::proxy::ResourceMessageReplyParams& reply_params,
-    const IPC::Message& nested_msg) {
-  ppapi::Resource* resource =
-      ppapi::PpapiGlobals::Get()->GetResourceTracker()->GetResource(
-          reply_params.pp_resource());
-  if (!resource) {
-    // The resource could have been destroyed while the async processing was
-    // pending. Just drop the message.
-    return;
-  }
-  resource->OnReplyReceived(reply_params, nested_msg);
-}
-
 // PepperInProcessResourceCreation --------------------------------------------
 
 PepperInProcessResourceCreation::PepperInProcessResourceCreation(
-    RenderViewImpl* render_view,
-    webkit::ppapi::PluginInstance* instance,
-    const ppapi::PpapiPermissions& perms)
+    RendererPpapiHostImpl* host_impl,
+    webkit::ppapi::PluginInstance* instance)
     : ResourceCreationImpl(instance),
-      instance_state_(instance->module()),
-      dummy_browser_channel_(new DummyBrowserChannel),
-      host_to_plugin_router_(new HostToPluginRouter),
-      plugin_to_host_router_(
-          new PluginToHostRouter(render_view, &instance_state_,
-                                 host_to_plugin_router_.get(),
-                                 perms)) {
-  render_view->PpapiPluginCreated(&plugin_to_host_router_->host());
+      host_impl_(host_impl) {
 }
 
 PepperInProcessResourceCreation::~PepperInProcessResourceCreation() {
 }
 
 PP_Resource PepperInProcessResourceCreation::CreateFileChooser(
     PP_Instance instance,
     PP_FileChooserMode_Dev mode,
     const char* accept_types) {
   return (new ppapi::proxy::FileChooserResource(
-      GetConnection(),
+      host_impl_->in_process_router()->GetPluginConnection(),
       instance, mode, accept_types))->GetReference();
 }
 
-ppapi::proxy::Connection PepperInProcessResourceCreation::GetConnection() {
-  return ppapi::proxy::Connection(dummy_browser_channel_.get(),
-                                  plugin_to_host_router_.get());
-}
-
 }  // namespace content