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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/renderer/blob_native_handler.h"
#include "base/bind.h"
#include "extensions/renderer/script_context.h"
#include "third_party/WebKit/public/platform/WebURL.h"
#include "third_party/WebKit/public/web/WebBlob.h"
namespace {
// Expects a single Blob argument. Returns the Blob's UUID.
void GetBlobUuid(const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(1, args.Length());
blink::WebBlob blob = blink::WebBlob::fromV8Value(args[0]);
args.GetReturnValue().Set(
v8::String::NewFromUtf8(args.GetIsolate(), blob.uuid().utf8().data()));
}
} // namespace
namespace extensions {
BlobNativeHandler::BlobNativeHandler(ScriptContext* context)
: ObjectBackedNativeHandler(context) {
RouteFunction("GetBlobUuid", base::Bind(&GetBlobUuid));
RouteFunction("TakeBrowserProcessBlob",
base::Bind(&BlobNativeHandler::TakeBrowserProcessBlob,
base::Unretained(this)));
}
// Take ownership of a Blob created on the browser process. Expects the Blob's
// UUID, type, and size as arguments. Returns the Blob we just took to
// Javascript. The Blob reference in the browser process is dropped through
// a separate flow to avoid leaking Blobs if the script context is destroyed.
void BlobNativeHandler::TakeBrowserProcessBlob(
const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(3, args.Length());
CHECK(args[0]->IsString());
CHECK(args[1]->IsString());
CHECK(args[2]->IsInt32());
std::string uuid(*v8::String::Utf8Value(args[0]));
std::string type(*v8::String::Utf8Value(args[1]));
blink::WebBlob blob =
blink::WebBlob::createFromUUID(blink::WebString::fromUTF8(uuid),
blink::WebString::fromUTF8(type),
args[2]->Int32Value());
args.GetReturnValue().Set(blob.toV8Value(
context()->v8_context()->Global(), args.GetIsolate()));
}
} // namespace extensions
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