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