src/chrome/renderer/extensions/document_custom_bindings.cc

   1 // Copyright 2013 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 "chrome/renderer/extensions/document_custom_bindings.h"
   6
   7 #include <string>
   8
   9 #include "base/bind.h"
  10 #include "chrome/renderer/extensions/chrome_v8_context.h"
  11 #include "third_party/WebKit/public/web/WebDocument.h"
  12 #include "third_party/WebKit/public/web/WebFrame.h"
  13 #include "v8/include/v8.h"
  14
  15 namespace extensions {
  16
  17 DocumentCustomBindings::DocumentCustomBindings(
  18     Dispatcher* dispatcher, ChromeV8Context* context)
  19     : ChromeV8Extension(dispatcher, context) {
  20   RouteFunction("RegisterElement",
  21       base::Bind(&DocumentCustomBindings::RegisterElement,
  22                  base::Unretained(this)));
  23 }
  24
  25 // Attach an event name to an object.
  26 void DocumentCustomBindings::RegisterElement(
  27     const v8::FunctionCallbackInfo<v8::Value>& args) {
  28   if (args.Length() != 2 || !args[0]->IsString() || !args[1]->IsObject()) {
  29     NOTREACHED();
  30     return;
  31   }
  32
  33   std::string element_name(*v8::String::Utf8Value(args[0]));
  34   v8::Local<v8::Object> options = args[1]->ToObject();
  35
  36   blink::WebExceptionCode ec = 0;
  37   blink::WebDocument document = context()->web_frame()->document();
  38   v8::Handle<v8::Value> constructor =
  39       document.registerEmbedderCustomElement(
  40           blink::WebString::fromUTF8(element_name), options, ec);
  41   args.GetReturnValue().Set(constructor);
  42 }
  43
  44 }  // namespace extensions