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/blob_native_handler.h" 6 7 #include "base/bind.h" 8 #include "third_party/WebKit/public/platform/WebCString.h" 9 #include "third_party/WebKit/public/platform/WebURL.h" 10 #include "third_party/WebKit/public/web/WebBlob.h" 11 12 namespace { 13 14 // Expects a single Blob argument. Returns the Blob's UUID. 15 void GetBlobUuid(const v8::FunctionCallbackInfo<v8::Value>& args) { 16 DCHECK_EQ(1, args.Length()); 17 blink::WebBlob blob = blink::WebBlob::fromV8Value(args[0]); 18 args.GetReturnValue().Set( 19 v8::String::NewFromUtf8(args.GetIsolate(), blob.uuid().utf8().data())); 20 } 21 22 // Take ownership of a Blob created on the browser process. Expects the Blob's 23 // UUID, type, and size as arguments. Returns the Blob we just took to 24 // Javascript. The Blob reference in the browser process is dropped through 25 // a separate flow to avoid leaking Blobs if the script context is destroyed. 26 void TakeBrowserProcessBlob(const v8::FunctionCallbackInfo<v8::Value>& args) { 27 DCHECK_EQ(3, args.Length()); 28 DCHECK(args[0]->IsString()); 29 DCHECK(args[1]->IsString()); 30 DCHECK(args[2]->IsInt32()); 31 std::string uuid(*v8::String::Utf8Value(args[0]->ToString())); 32 std::string type(*v8::String::Utf8Value(args[1]->ToString())); 33 blink::WebBlob blob = 34 blink::WebBlob::createFromUUID(blink::WebString::fromUTF8(uuid), 35 blink::WebString::fromUTF8(type), 36 args[2]->Int32Value()); 37 args.GetReturnValue().Set(blob.toV8Value(args.Holder(), args.GetIsolate())); 38 } 39 40 } // namespace 41 42 namespace extensions { 43 44 BlobNativeHandler::BlobNativeHandler(ScriptContext* context) 45 : ObjectBackedNativeHandler(context) { 46 RouteFunction("GetBlobUuid", base::Bind(&GetBlobUuid)); 47 RouteFunction("TakeBrowserProcessBlob", base::Bind(&TakeBrowserProcessBlob)); 48 } 49 50 } // namespace extensions 51
