content/shell/renderer/binding_helpers.h

   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 #ifndef CONTENT_SHELL_RENDERER_BINDING_HELPERS_H_
   6 #define CONTENT_SHELL_RENDERER_BINDING_HELPERS_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/memory/scoped_ptr.h"
  12 #include "gin/handle.h"
  13 #include "gin/wrappable.h"
  14 #include "third_party/WebKit/public/web/WebFrame.h"
  15 #include "third_party/WebKit/public/web/WebKit.h"
  16
  17 namespace content {
  18
  19 template<class WrappedClass>
  20 void InstallAsWindowProperties(WrappedClass* wrapped,
  21                                blink::WebFrame* frame,
  22                                const std::vector<std::string>& names) {
  23   v8::Isolate* isolate = blink::mainThreadIsolate();
  24   v8::HandleScope handle_scope(isolate);
  25   v8::Handle<v8::Context> context = frame->mainWorldScriptContext();
  26   if (context.IsEmpty())
  27     return;
  28
  29   v8::Context::Scope context_scope(context);
  30
  31   gin::Handle<WrappedClass> bindings = gin::CreateHandle(isolate, wrapped);
  32   if (bindings.IsEmpty())
  33     return;
  34   v8::Handle<v8::Object> global = context->Global();
  35   v8::Handle<v8::Value> v8_bindings = bindings.ToV8();
  36   for (size_t i = 0; i < names.size(); ++i)
  37     global->Set(gin::StringToV8(isolate, names[i].c_str()), v8_bindings);
  38 }
  39
  40 }  // namespace content
  41
  42 #endif  // CONTENT_SHELL_RENDERER_BINDING_HELPERS_H_