extensions/shell/renderer/shell_content_renderer_client.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "extensions/shell/renderer/shell_content_renderer_client.h"
   6
   7 #include "content/public/common/content_constants.h"
   8 #include "content/public/renderer/render_frame.h"
   9 #include "content/public/renderer/render_frame_observer.h"
  10 #include "content/public/renderer/render_frame_observer_tracker.h"
  11 #include "content/public/renderer/render_thread.h"
  12 #include "extensions/common/extensions_client.h"
  13 #include "extensions/renderer/default_dispatcher_delegate.h"
  14 #include "extensions/renderer/dispatcher.h"
  15 #include "extensions/renderer/extension_helper.h"
  16 #include "extensions/renderer/guest_view/extensions_guest_view_container.h"
  17 #include "extensions/renderer/guest_view/guest_view_container.h"
  18 #include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
  19 #include "extensions/shell/common/shell_extensions_client.h"
  20 #include "extensions/shell/renderer/shell_extensions_renderer_client.h"
  21 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  22
  23 #if !defined(DISABLE_NACL)
  24 #include "components/nacl/common/nacl_constants.h"
  25 #include "components/nacl/renderer/nacl_helper.h"
  26 #include "components/nacl/renderer/ppb_nacl_private.h"
  27 #include "components/nacl/renderer/ppb_nacl_private_impl.h"
  28 #endif
  29
  30 using blink::WebFrame;
  31 using blink::WebString;
  32 using content::RenderThread;
  33
  34 namespace extensions {
  35
  36 namespace {
  37
  38 // TODO: promote ExtensionFrameHelper to a common place and share with this.
  39 class ShellFrameHelper
  40     : public content::RenderFrameObserver,
  41       public content::RenderFrameObserverTracker<ShellFrameHelper> {
  42  public:
  43   ShellFrameHelper(content::RenderFrame* render_frame,
  44                    Dispatcher* extension_dispatcher);
  45   ~ShellFrameHelper() override;
  46
  47   // RenderFrameObserver implementation.
  48   void WillReleaseScriptContext(v8::Handle<v8::Context>, int world_id) override;
  49
  50  private:
  51   Dispatcher* extension_dispatcher_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(ShellFrameHelper);
  54 };
  55
  56 ShellFrameHelper::ShellFrameHelper(content::RenderFrame* render_frame,
  57                                    Dispatcher* extension_dispatcher)
  58     : content::RenderFrameObserver(render_frame),
  59       content::RenderFrameObserverTracker<ShellFrameHelper>(render_frame),
  60       extension_dispatcher_(extension_dispatcher) {
  61 }
  62
  63 ShellFrameHelper::~ShellFrameHelper() {
  64 }
  65
  66 void ShellFrameHelper::WillReleaseScriptContext(v8::Handle<v8::Context> context,
  67                                                 int world_id) {
  68   extension_dispatcher_->WillReleaseScriptContext(
  69       render_frame()->GetWebFrame(), context, world_id);
  70 }
  71
  72 }  // namespace
  73
  74 ShellContentRendererClient::ShellContentRendererClient() {
  75 }
  76
  77 ShellContentRendererClient::~ShellContentRendererClient() {
  78 }
  79
  80 void ShellContentRendererClient::RenderThreadStarted() {
  81   RenderThread* thread = RenderThread::Get();
  82
  83   extensions_client_.reset(CreateExtensionsClient());
  84   ExtensionsClient::Set(extensions_client_.get());
  85
  86   extensions_renderer_client_.reset(new ShellExtensionsRendererClient);
  87   ExtensionsRendererClient::Set(extensions_renderer_client_.get());
  88
  89   extension_dispatcher_delegate_.reset(new DefaultDispatcherDelegate());
  90
  91   // Must be initialized after ExtensionsRendererClient.
  92   extension_dispatcher_.reset(
  93       new Dispatcher(extension_dispatcher_delegate_.get()));
  94   thread->AddObserver(extension_dispatcher_.get());
  95
  96   // TODO(jamescook): Init WebSecurityPolicy for chrome-extension: schemes.
  97   // See ChromeContentRendererClient for details.
  98 }
  99
 100 void ShellContentRendererClient::RenderFrameCreated(
 101     content::RenderFrame* render_frame) {
 102   // ShellFrameHelper destroys itself when the RenderFrame is destroyed.
 103   new ShellFrameHelper(render_frame, extension_dispatcher_.get());
 104
 105   // TODO(jamescook): Do we need to add a new PepperHelper(render_frame) here?
 106   // It doesn't seem necessary for either Pepper or NaCl.
 107   // http://crbug.com/403004
 108 #if !defined(DISABLE_NACL)
 109   new nacl::NaClHelper(render_frame);
 110 #endif
 111 }
 112
 113 void ShellContentRendererClient::RenderViewCreated(
 114     content::RenderView* render_view) {
 115   new ExtensionHelper(render_view, extension_dispatcher_.get());
 116   extension_dispatcher_->OnRenderViewCreated(render_view);
 117 }
 118
 119 bool ShellContentRendererClient::OverrideCreatePlugin(
 120     content::RenderFrame* render_frame,
 121     blink::WebLocalFrame* frame,
 122     const blink::WebPluginParams& params,
 123     blink::WebPlugin** plugin) {
 124   // Allow the content module to create the plugin.
 125   return false;
 126 }
 127
 128 blink::WebPlugin* ShellContentRendererClient::CreatePluginReplacement(
 129     content::RenderFrame* render_frame,
 130     const base::FilePath& plugin_path) {
 131   // Don't provide a custom "failed to load" plugin.
 132   return NULL;
 133 }
 134
 135 bool ShellContentRendererClient::ShouldForwardToGuestContainer(
 136     const IPC::Message& msg) {
 137   return GuestViewContainer::HandlesMessage(msg);
 138 }
 139
 140 bool ShellContentRendererClient::WillSendRequest(
 141     blink::WebFrame* frame,
 142     ui::PageTransition transition_type,
 143     const GURL& url,
 144     const GURL& first_party_for_cookies,
 145     GURL* new_url) {
 146   // TODO(jamescook): Cause an error for bad extension scheme requests?
 147   return false;
 148 }
 149
 150 void ShellContentRendererClient::DidCreateScriptContext(
 151     WebFrame* frame,
 152     v8::Handle<v8::Context> context,
 153     int extension_group,
 154     int world_id) {
 155   extension_dispatcher_->DidCreateScriptContext(
 156       frame, context, extension_group, world_id);
 157 }
 158
 159 const void* ShellContentRendererClient::CreatePPAPIInterface(
 160     const std::string& interface_name) {
 161 #if !defined(DISABLE_NACL)
 162   if (interface_name == PPB_NACL_PRIVATE_INTERFACE)
 163     return nacl::GetNaClPrivateInterface();
 164 #endif
 165   return NULL;
 166 }
 167
 168 bool ShellContentRendererClient::IsExternalPepperPlugin(
 169     const std::string& module_name) {
 170 #if !defined(DISABLE_NACL)
 171   // TODO(bbudge) remove this when the trusted NaCl plugin has been removed.
 172   // We must defer certain plugin events for NaCl instances since we switch
 173   // from the in-process to the out-of-process proxy after instantiating them.
 174   return module_name == nacl::kNaClPluginName;
 175 #else
 176   return false;
 177 #endif
 178 }
 179
 180 bool ShellContentRendererClient::ShouldEnableSiteIsolationPolicy() const {
 181   // Extension renderers don't need site isolation.
 182   return false;
 183 }
 184
 185 content::BrowserPluginDelegate*
 186 ShellContentRendererClient::CreateBrowserPluginDelegate(
 187     content::RenderFrame* render_frame,
 188     const std::string& mime_type,
 189     const GURL& original_url) {
 190   if (mime_type == content::kBrowserPluginMimeType) {
 191     return new extensions::ExtensionsGuestViewContainer(render_frame);
 192   } else {
 193     return new extensions::MimeHandlerViewContainer(
 194         render_frame, mime_type, original_url);
 195   }
 196 }
 197
 198 ExtensionsClient* ShellContentRendererClient::CreateExtensionsClient() {
 199   return new ShellExtensionsClient;
 200 }
 201
 202 }  // namespace extensions