/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "public/web/WebBlob.h"

#include "bindings/core/v8/V8Binding.h"
#include "bindings/core/v8/V8Blob.h"
#include "core/fileapi/Blob.h"
#include "platform/FileMetadata.h"
#include "platform/blob/BlobData.h"
#include <memory>

namespace blink {

WebBlob WebBlob::createFromUUID(const WebString& uuid,
                                const WebString& type,
                                long long size) {
  return Blob::create(BlobDataHandle::create(uuid, type, size));
}

WebBlob WebBlob::createFromFile(const WebString& path, long long size) {
  std::unique_ptr<BlobData> blobData = BlobData::create();
  blobData->appendFile(path, 0, size, invalidFileTime());
  return Blob::create(BlobDataHandle::create(std::move(blobData), size));
}

WebBlob WebBlob::fromV8Value(v8::Local<v8::Value> value) {
  if (V8Blob::hasInstance(value, v8::Isolate::GetCurrent())) {
    v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
    Blob* blob = V8Blob::toImpl(object);
    DCHECK(blob);
    return blob;
  }
  return WebBlob();
}

void WebBlob::reset() {
  m_private.reset();
}

void WebBlob::assign(const WebBlob& other) {
  m_private = other.m_private;
}

WebString WebBlob::uuid() {
  if (!m_private.get())
    return WebString();
  return m_private->uuid();
}

v8::Local<v8::Value> WebBlob::toV8Value(v8::Local<v8::Object> creationContext,
                                        v8::Isolate* isolate) {
  // We no longer use |creationContext| because it's often misused and points
  // to a context faked by user script.
  DCHECK(creationContext->CreationContext() == isolate->GetCurrentContext());
  if (!m_private.get())
    return v8::Local<v8::Value>();
  return toV8(m_private.get(), isolate->GetCurrentContext()->Global(), isolate);
}

WebBlob::WebBlob(Blob* blob) : m_private(blob) {}

WebBlob& WebBlob::operator=(Blob* blob) {
  m_private = blob;
  return *this;
}

}  // namespace blink