extensions/renderer/guest_view/guest_view_internal_custom_bindings.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/renderer/guest_view/guest_view_internal_custom_bindings.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "content/public/renderer/render_frame.h"
  11 #include "content/public/renderer/render_view.h"
  12 #include "content/public/renderer/v8_value_converter.h"
  13 #include "extensions/common/extension.h"
  14 #include "extensions/common/extension_messages.h"
  15 #include "extensions/renderer/script_context.h"
  16 #include "v8/include/v8.h"
  17
  18 using content::V8ValueConverter;
  19
  20 namespace extensions {
  21
  22 GuestViewInternalCustomBindings::GuestViewInternalCustomBindings(
  23     ScriptContext* context)
  24     : ObjectBackedNativeHandler(context) {
  25   RouteFunction("AttachGuest",
  26                 base::Bind(&GuestViewInternalCustomBindings::AttachGuest,
  27                            base::Unretained(this)));
  28 }
  29
  30 void GuestViewInternalCustomBindings::AttachGuest(
  31     const v8::FunctionCallbackInfo<v8::Value>& args) {
  32   CHECK(args.Length() == 3 && args[0]->IsInt32() && args[1]->IsInt32() &&
  33       args[2]->IsObject());
  34
  35   content::RenderFrame* render_frame = context()->GetRenderFrame();
  36   if (!render_frame)
  37     return;
  38
  39   int element_instance_id = args[0]->Int32Value();
  40   int guest_instance_id = args[1]->Int32Value();
  41
  42   scoped_ptr<base::DictionaryValue> params;
  43   {
  44     scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
  45     scoped_ptr<base::Value> params_as_value(
  46         converter->FromV8Value(args[2], context()->v8_context()));
  47     CHECK(params_as_value->IsType(base::Value::TYPE_DICTIONARY));
  48     params.reset(
  49         static_cast<base::DictionaryValue*>(params_as_value.release()));
  50   }
  51
  52   // Step 1, send the attach params to chrome/.
  53   render_frame->Send(new ExtensionHostMsg_AttachGuest(
  54       render_frame->GetRenderView()->GetRoutingID(),
  55       element_instance_id,
  56       guest_instance_id,
  57       *params));
  58
  59   // Step 2, attach plugin through content/.
  60   render_frame->AttachGuest(element_instance_id);
  61
  62   args.GetReturnValue().Set(v8::Boolean::New(context()->isolate(), true));
  63 }
  64
  65 }  // namespace extensions