extensions/renderer/document_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/document_custom_bindings.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "extensions/renderer/script_context.h"
  11 #include "third_party/WebKit/public/web/WebDocument.h"
  12 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  13 #include "v8/include/v8.h"
  14
  15 namespace extensions {
  16
  17 DocumentCustomBindings::DocumentCustomBindings(ScriptContext* context)
  18     : ObjectBackedNativeHandler(context) {
  19   RouteFunction("RegisterElement",
  20                 base::Bind(&DocumentCustomBindings::RegisterElement,
  21                            base::Unretained(this)));
  22 }
  23
  24 // Attach an event name to an object.
  25 void DocumentCustomBindings::RegisterElement(
  26     const v8::FunctionCallbackInfo<v8::Value>& args) {
  27   if (args.Length() != 2 || !args[0]->IsString() || !args[1]->IsObject()) {
  28     NOTREACHED();
  29     return;
  30   }
  31
  32   std::string element_name(*v8::String::Utf8Value(args[0]));
  33   v8::Local<v8::Object> options = v8::Local<v8::Object>::Cast(args[1]);
  34
  35   blink::WebExceptionCode ec = 0;
  36   blink::WebDocument document = context()->web_frame()->document();
  37   v8::Handle<v8::Value> constructor = document.registerEmbedderCustomElement(
  38       blink::WebString::fromUTF8(element_name), options, ec);
  39   args.GetReturnValue().Set(constructor);
  40 }
  41
  42 }  // namespace extensions