extensions/renderer/app_runtime_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/app_runtime_custom_bindings.h"
   6
   7 #include "base/bind.h"
   8 #include "base/strings/string_number_conversions.h"
   9 #include "third_party/WebKit/public/platform/WebCString.h"
  10 #include "third_party/WebKit/public/platform/WebString.h"
  11 #include "third_party/WebKit/public/web/WebBlob.h"
  12 #include "third_party/WebKit/public/web/WebSerializedScriptValue.h"
  13
  14 using blink::WebBlob;
  15 using blink::WebSerializedScriptValue;
  16 using blink::WebString;
  17
  18 namespace {
  19
  20 void DeserializeString(const v8::FunctionCallbackInfo<v8::Value>& args) {
  21   DCHECK(args.Length() == 1);
  22   DCHECK(args[0]->IsString());
  23
  24   std::string data_v8(*v8::String::Utf8Value(args[0]));
  25   WebString data_webstring = WebString::fromUTF8(data_v8);
  26   WebSerializedScriptValue serialized =
  27       WebSerializedScriptValue::fromString(data_webstring);
  28   args.GetReturnValue().Set(serialized.deserialize());
  29 }
  30
  31 void SerializeToString(const v8::FunctionCallbackInfo<v8::Value>& args) {
  32   DCHECK(args.Length() == 1);
  33   WebSerializedScriptValue data = WebSerializedScriptValue::serialize(args[0]);
  34   WebString data_webstring = data.toString();
  35
  36   std::string v = std::string(data_webstring.utf8());
  37   args.GetReturnValue().Set(
  38       v8::String::NewFromUtf8(args.GetIsolate(), v.c_str()));
  39 }
  40
  41 void CreateBlob(const v8::FunctionCallbackInfo<v8::Value>& args) {
  42   DCHECK(args.Length() == 2);
  43   DCHECK(args[0]->IsString());
  44   DCHECK(args[1]->IsNumber());
  45
  46   std::string blob_file_path(*v8::String::Utf8Value(args[0]));
  47   std::string blob_length_string(*v8::String::Utf8Value(args[1]));
  48   int64 blob_length = 0;
  49   DCHECK(base::StringToInt64(blob_length_string, &blob_length));
  50   blink::WebBlob web_blob =
  51       WebBlob::createFromFile(WebString::fromUTF8(blob_file_path), blob_length);
  52   args.GetReturnValue().Set(
  53       web_blob.toV8Value(args.Holder(), args.GetIsolate()));
  54 }
  55
  56 }  // namespace
  57
  58 namespace extensions {
  59
  60 AppRuntimeCustomBindings::AppRuntimeCustomBindings(ScriptContext* context)
  61     : ObjectBackedNativeHandler(context) {
  62   RouteFunction("DeserializeString", base::Bind(&DeserializeString));
  63   RouteFunction("SerializeToString", base::Bind(&SerializeToString));
  64   RouteFunction("CreateBlob", base::Bind(&CreateBlob));
  65 }
  66
  67 }  // namespace extensions