Refactoring of new IPC-only pepper implementation

content/renderer/pepper/renderer_ppapi_host_impl.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/renderer_ppapi_host_impl.h"
+
+#include "base/logging.h"
+#include "content/renderer/pepper/pepper_in_process_resource_creation.h"
+#include "content/renderer/pepper/pepper_in_process_router.h"
+#include "content/renderer/pepper/pepper_plugin_delegate_impl.h"
+#include "content/renderer/render_view_impl.h"
+#include "ppapi/proxy/host_dispatcher.h"
+#include "webkit/plugins/ppapi/host_globals.h"
+#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
+
+using webkit::ppapi::HostGlobals;
+using webkit::ppapi::PluginInstance;
+
+namespace content {
+
+// Out-of-process constructor.
+RendererPpapiHostImpl::RendererPpapiHostImpl(
+    webkit::ppapi::PluginModule* module,
+    ppapi::proxy::HostDispatcher* dispatcher,
+    const ppapi::PpapiPermissions& permissions)
+    : module_(module),
+      host_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
+  // Hook the PpapiHost up to the dispatcher for out-of-process communication.
+  ppapi_host_.reset(
+      new ppapi::host::PpapiHost(dispatcher, &host_factory_, permissions));
+  dispatcher->AddFilter(ppapi_host_.get());
+}
+
+// In-process constructor.
+RendererPpapiHostImpl::RendererPpapiHostImpl(
+    webkit::ppapi::PluginModule* module,
+    const ppapi::PpapiPermissions& permissions)
+    : module_(module),
+      host_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {
+  // Hook the host up to the in-process router.
+  in_process_router_.reset(new PepperInProcessRouter(this));
+  ppapi_host_.reset(new ppapi::host::PpapiHost(
+      in_process_router_->GetRendererToPluginSender(),
+      &host_factory_, permissions));
+}
+
+RendererPpapiHostImpl::~RendererPpapiHostImpl() {
+}
+
+// static
+RendererPpapiHostImpl* RendererPpapiHostImpl::CreateOnModuleForOutOfProcess(
+    webkit::ppapi::PluginModule* module,
+    ppapi::proxy::HostDispatcher* dispatcher,
+    const ppapi::PpapiPermissions& permissions) {
+  DCHECK(!module->GetEmbedderState());
+  RendererPpapiHostImpl* result = new RendererPpapiHostImpl(
+      module, dispatcher, permissions);
+
+  // Takes ownership of pointer.
+  module->SetEmbedderState(
+      scoped_ptr<webkit::ppapi::PluginModule::EmbedderState>(result));
+
+  return result;
+}
+
+// static
+RendererPpapiHostImpl* RendererPpapiHostImpl::CreateOnModuleForInProcess(
+    webkit::ppapi::PluginModule* module,
+    const ppapi::PpapiPermissions& permissions) {
+  DCHECK(!module->GetEmbedderState());
+  RendererPpapiHostImpl* result = new RendererPpapiHostImpl(
+      module, permissions);
+
+  // Takes ownership of pointer.
+  module->SetEmbedderState(
+      scoped_ptr<webkit::ppapi::PluginModule::EmbedderState>(result));
+
+  return result;
+}
+
+scoped_ptr< ::ppapi::thunk::ResourceCreationAPI>
+RendererPpapiHostImpl::CreateInProcessResourceCreationAPI(
+    webkit::ppapi::PluginInstance* instance) {
+  return scoped_ptr< ::ppapi::thunk::ResourceCreationAPI>(
+      new PepperInProcessResourceCreation(this, instance));
+}
+
+ppapi::host::PpapiHost* RendererPpapiHostImpl::GetPpapiHost() {
+  return ppapi_host_.get();
+}
+
+RenderView* RendererPpapiHostImpl::GetRenderViewForInstance(
+    PP_Instance instance) const {
+  PluginInstance* instance_object = GetAndValidateInstance(instance);
+  if (!instance_object)
+    return NULL;
+
+  // Since we're the embedder, we can make assumptions about the delegate on
+  // the instance and get back to our RenderView.
+  return static_cast<PepperPluginDelegateImpl*>(
+      instance_object->delegate())->render_view();
+}
+
+bool RendererPpapiHostImpl::IsValidInstance(
+    PP_Instance instance) const {
+  return !!GetAndValidateInstance(instance);
+}
+
+bool RendererPpapiHostImpl::HasUserGesture(PP_Instance instance) const {
+  PluginInstance* instance_object = GetAndValidateInstance(instance);
+  if (!instance_object)
+    return false;
+
+  if (instance_object->module()->permissions().HasPermission(
+          ppapi::PERMISSION_BYPASS_USER_GESTURE))
+    return true;
+  return instance_object->IsProcessingUserGesture();
+}
+
+PluginInstance* RendererPpapiHostImpl::GetAndValidateInstance(
+    PP_Instance pp_instance) const {
+  PluginInstance* instance = HostGlobals::Get()->GetInstance(pp_instance);
+  if (!instance)
+    return NULL;
+  if (instance->module() != module_)
+    return NULL;
+  return instance;
+}
+
+}  // namespace content