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/dispatcher.h"
  13 #include "extensions/renderer/extension_helper.h"
  14 #include "extensions/shell/common/shell_extensions_client.h"
  15 #include "extensions/shell/renderer/shell_dispatcher_delegate.h"
  16 #include "extensions/shell/renderer/shell_extensions_renderer_client.h"
  17 #include "extensions/shell/renderer/shell_renderer_main_delegate.h"
  18
  19 using blink::WebFrame;
  20 using blink::WebString;
  21 using content::RenderThread;
  22
  23 namespace extensions {
  24
  25 namespace {
  26
  27 // TODO: promote ExtensionFrameHelper to a common place and share with this.
  28 class ShellFrameHelper
  29     : public content::RenderFrameObserver,
  30       public content::RenderFrameObserverTracker<ShellFrameHelper> {
  31  public:
  32   ShellFrameHelper(content::RenderFrame* render_frame,
  33                    Dispatcher* extension_dispatcher);
  34   virtual ~ShellFrameHelper();
  35
  36   // RenderFrameObserver implementation.
  37   virtual void WillReleaseScriptContext(v8::Handle<v8::Context>,
  38                                         int world_id) OVERRIDE;
  39
  40  private:
  41   Dispatcher* extension_dispatcher_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(ShellFrameHelper);
  44 };
  45
  46 ShellFrameHelper::ShellFrameHelper(content::RenderFrame* render_frame,
  47                                    Dispatcher* extension_dispatcher)
  48     : content::RenderFrameObserver(render_frame),
  49       content::RenderFrameObserverTracker<ShellFrameHelper>(render_frame),
  50       extension_dispatcher_(extension_dispatcher) {
  51 }
  52
  53 ShellFrameHelper::~ShellFrameHelper() {
  54 }
  55
  56 void ShellFrameHelper::WillReleaseScriptContext(v8::Handle<v8::Context> context,
  57                                                 int world_id) {
  58   extension_dispatcher_->WillReleaseScriptContext(
  59       render_frame()->GetWebFrame(), context, world_id);
  60 }
  61
  62 }  // namespace
  63
  64 ShellContentRendererClient::ShellContentRendererClient(
  65     scoped_ptr<ShellRendererMainDelegate> delegate)
  66     : delegate_(delegate.Pass()) {
  67 }
  68
  69 ShellContentRendererClient::~ShellContentRendererClient() {
  70 }
  71
  72 void ShellContentRendererClient::RenderThreadStarted() {
  73   RenderThread* thread = RenderThread::Get();
  74
  75   extensions_client_.reset(new ShellExtensionsClient);
  76   ExtensionsClient::Set(extensions_client_.get());
  77
  78   extensions_renderer_client_.reset(new ShellExtensionsRendererClient);
  79   ExtensionsRendererClient::Set(extensions_renderer_client_.get());
  80
  81   extension_dispatcher_delegate_.reset(new ShellDispatcherDelegate());
  82
  83   // Must be initialized after ExtensionsRendererClient.
  84   extension_dispatcher_.reset(
  85       new Dispatcher(extension_dispatcher_delegate_.get()));
  86   thread->AddObserver(extension_dispatcher_.get());
  87
  88   // TODO(jamescook): Init WebSecurityPolicy for chrome-extension: schemes.
  89   // See ChromeContentRendererClient for details.
  90   if (delegate_)
  91     delegate_->OnThreadStarted(thread);
  92 }
  93
  94 void ShellContentRendererClient::RenderFrameCreated(
  95     content::RenderFrame* render_frame) {
  96   // ShellFrameHelper destroyes itself when the RenderFrame is destroyed.
  97   new ShellFrameHelper(render_frame, extension_dispatcher_.get());
  98 }
  99
 100 void ShellContentRendererClient::RenderViewCreated(
 101     content::RenderView* render_view) {
 102   new ExtensionHelper(render_view, extension_dispatcher_.get());
 103   if (delegate_)
 104     delegate_->OnViewCreated(render_view);
 105 }
 106
 107 bool ShellContentRendererClient::WillSendRequest(
 108     blink::WebFrame* frame,
 109     content::PageTransition transition_type,
 110     const GURL& url,
 111     const GURL& first_party_for_cookies,
 112     GURL* new_url) {
 113   // TODO(jamescook): Cause an error for bad extension scheme requests?
 114   return false;
 115 }
 116
 117 void ShellContentRendererClient::DidCreateScriptContext(
 118     WebFrame* frame,
 119     v8::Handle<v8::Context> context,
 120     int extension_group,
 121     int world_id) {
 122   extension_dispatcher_->DidCreateScriptContext(
 123       frame, context, extension_group, world_id);
 124 }
 125
 126 bool ShellContentRendererClient::ShouldEnableSiteIsolationPolicy() const {
 127   // Extension renderers don't need site isolation.
 128   return false;
 129 }
 130
 131 }  // namespace extensions