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_frame_helper.h"
  16 #include "extensions/renderer/extension_helper.h"
  17 #include "extensions/renderer/guest_view/extensions_guest_view_container.h"
  18 #include "extensions/renderer/guest_view/guest_view_container.h"
  19 #include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
  20 #include "extensions/shell/common/shell_extensions_client.h"
  21 #include "extensions/shell/renderer/shell_extensions_renderer_client.h"
  22 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  23
  24 #if !defined(DISABLE_NACL)
  25 #include "components/nacl/common/nacl_constants.h"
  26 #include "components/nacl/renderer/nacl_helper.h"
  27 #include "components/nacl/renderer/ppb_nacl_private.h"
  28 #include "components/nacl/renderer/ppb_nacl_private_impl.h"
  29 #endif
  30
  31 using blink::WebFrame;
  32 using blink::WebString;
  33 using content::RenderThread;
  34
  35 namespace extensions {
  36
  37 ShellContentRendererClient::ShellContentRendererClient() {
  38 }
  39
  40 ShellContentRendererClient::~ShellContentRendererClient() {
  41 }
  42
  43 void ShellContentRendererClient::RenderThreadStarted() {
  44   RenderThread* thread = RenderThread::Get();
  45
  46   extensions_client_.reset(CreateExtensionsClient());
  47   ExtensionsClient::Set(extensions_client_.get());
  48
  49   extensions_renderer_client_.reset(new ShellExtensionsRendererClient);
  50   ExtensionsRendererClient::Set(extensions_renderer_client_.get());
  51
  52   extension_dispatcher_delegate_.reset(new DefaultDispatcherDelegate());
  53
  54   // Must be initialized after ExtensionsRendererClient.
  55   extension_dispatcher_.reset(
  56       new Dispatcher(extension_dispatcher_delegate_.get()));
  57   thread->AddObserver(extension_dispatcher_.get());
  58
  59   // TODO(jamescook): Init WebSecurityPolicy for chrome-extension: schemes.
  60   // See ChromeContentRendererClient for details.
  61 }
  62
  63 void ShellContentRendererClient::RenderFrameCreated(
  64     content::RenderFrame* render_frame) {
  65   // ExtensionFrameHelper destroys itself when the RenderFrame is destroyed.
  66   new ExtensionFrameHelper(render_frame, extension_dispatcher_.get());
  67
  68   // TODO(jamescook): Do we need to add a new PepperHelper(render_frame) here?
  69   // It doesn't seem necessary for either Pepper or NaCl.
  70   // http://crbug.com/403004
  71 #if !defined(DISABLE_NACL)
  72   new nacl::NaClHelper(render_frame);
  73 #endif
  74 }
  75
  76 void ShellContentRendererClient::RenderViewCreated(
  77     content::RenderView* render_view) {
  78   new ExtensionHelper(render_view, extension_dispatcher_.get());
  79   extension_dispatcher_->OnRenderViewCreated(render_view);
  80 }
  81
  82 bool ShellContentRendererClient::OverrideCreatePlugin(
  83     content::RenderFrame* render_frame,
  84     blink::WebLocalFrame* frame,
  85     const blink::WebPluginParams& params,
  86     blink::WebPlugin** plugin) {
  87   // Allow the content module to create the plugin.
  88   return false;
  89 }
  90
  91 blink::WebPlugin* ShellContentRendererClient::CreatePluginReplacement(
  92     content::RenderFrame* render_frame,
  93     const base::FilePath& plugin_path) {
  94   // Don't provide a custom "failed to load" plugin.
  95   return NULL;
  96 }
  97
  98 bool ShellContentRendererClient::ShouldForwardToGuestContainer(
  99     const IPC::Message& msg) {
 100   return GuestViewContainer::HandlesMessage(msg);
 101 }
 102
 103 bool ShellContentRendererClient::WillSendRequest(
 104     blink::WebFrame* frame,
 105     ui::PageTransition transition_type,
 106     const GURL& url,
 107     const GURL& first_party_for_cookies,
 108     GURL* new_url) {
 109   // TODO(jamescook): Cause an error for bad extension scheme requests?
 110   return false;
 111 }
 112
 113 void ShellContentRendererClient::DidCreateScriptContext(
 114     WebFrame* frame,
 115     v8::Handle<v8::Context> context,
 116     int extension_group,
 117     int world_id) {
 118   extension_dispatcher_->DidCreateScriptContext(
 119       frame, context, extension_group, world_id);
 120 }
 121
 122 const void* ShellContentRendererClient::CreatePPAPIInterface(
 123     const std::string& interface_name) {
 124 #if !defined(DISABLE_NACL)
 125   if (interface_name == PPB_NACL_PRIVATE_INTERFACE)
 126     return nacl::GetNaClPrivateInterface();
 127 #endif
 128   return NULL;
 129 }
 130
 131 bool ShellContentRendererClient::IsExternalPepperPlugin(
 132     const std::string& module_name) {
 133 #if !defined(DISABLE_NACL)
 134   // TODO(bbudge) remove this when the trusted NaCl plugin has been removed.
 135   // We must defer certain plugin events for NaCl instances since we switch
 136   // from the in-process to the out-of-process proxy after instantiating them.
 137   return module_name == nacl::kNaClPluginName;
 138 #else
 139   return false;
 140 #endif
 141 }
 142
 143 bool ShellContentRendererClient::ShouldEnableSiteIsolationPolicy() const {
 144   // Extension renderers don't need site isolation.
 145   return false;
 146 }
 147
 148 content::BrowserPluginDelegate*
 149 ShellContentRendererClient::CreateBrowserPluginDelegate(
 150     content::RenderFrame* render_frame,
 151     const std::string& mime_type,
 152     const GURL& original_url) {
 153   if (mime_type == content::kBrowserPluginMimeType) {
 154     return new extensions::ExtensionsGuestViewContainer(render_frame);
 155   } else {
 156     return new extensions::MimeHandlerViewContainer(
 157         render_frame, mime_type, original_url);
 158   }
 159 }
 160
 161 ExtensionsClient* ShellContentRendererClient::CreateExtensionsClient() {
 162   return new ShellExtensionsClient;
 163 }
 164
 165 }  // namespace extensions