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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_DOM_BLOB_H_
#define COBALT_DOM_BLOB_H_
#include <algorithm>
#include <string>
#include <vector>
#include "cobalt/dom/url_registry.h"
#include "cobalt/script/array_buffer.h"
#include "cobalt/script/array_buffer_view.h"
#include "cobalt/script/data_view.h"
#include "cobalt/script/environment_settings.h"
#include "cobalt/script/sequence.h"
#include "cobalt/script/union_type.h"
#include "cobalt/script/wrappable.h"
#include "googleurl/src/gurl.h"
namespace cobalt {
namespace dom {
// This ensures this header can be included without depending on generated
// dictionaries.
class BlobPropertyBag;
// A Blob object refers to a byte sequence, and has a size attribute which is
// the total number of bytes in the byte sequence, and a type attribute, which
// is an ASCII-encoded string in lower case representing the media type of the
// byte sequence.
// https://www.w3.org/TR/FileAPI/#dfn-Blob
class Blob : public script::Wrappable {
public:
typedef UrlRegistry<Blob> Registry;
typedef script::UnionType4<script::Handle<script::ArrayBuffer>,
script::Handle<script::ArrayBufferView>,
script::Handle<script::DataView>,
scoped_refptr<Blob> >
BlobPart;
// settings is non-nullable.
Blob(script::EnvironmentSettings* settings,
const script::Handle<script::ArrayBuffer>& buffer =
script::Handle<script::ArrayBuffer>(),
const BlobPropertyBag& options = EmptyBlobPropertyBag());
// settings is non-nullable.
Blob(script::EnvironmentSettings* settings,
const script::Sequence<BlobPart>& blob_parts,
const BlobPropertyBag& options = EmptyBlobPropertyBag());
const uint8* data() {
return static_cast<uint8*>(buffer_reference_.value().Data());
}
uint64 size() const {
return static_cast<uint64>(buffer_reference_.value().ByteLength());
}
const std::string& type() const { return type_; }
DEFINE_WRAPPABLE_TYPE(Blob);
private:
static const BlobPropertyBag& EmptyBlobPropertyBag();
script::ScriptValue<script::ArrayBuffer>::Reference buffer_reference_;
std::string type_;
DISALLOW_COPY_AND_ASSIGN(Blob);
};
} // namespace dom
} // namespace cobalt
#endif // COBALT_DOM_BLOB_H_