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/*
* Copyright (C) 2012 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 "config.h"
#include "Blob.h"
#include "Dictionary.h"
#include "V8ArrayBuffer.h"
#include "V8ArrayBufferView.h"
#include "V8Binding.h"
#include "V8Blob.h"
#include "V8File.h"
#include "V8Utilities.h"
#include "WebKitBlobBuilder.h"
#include <wtf/RefPtr.h>
namespace WebCore {
v8::Handle<v8::Value> toV8(Blob* impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
{
if (!impl)
return v8NullWithCheck(isolate);
if (impl->isFile())
return toV8(toFile(impl), creationContext, isolate);
return V8Blob::wrap(impl, creationContext, isolate);
}
v8::Handle<v8::Value> V8Blob::constructorCallback(const v8::Arguments& args)
{
INC_STATS("DOM.Blob.Constructor");
if (!args.IsConstructCall())
return throwTypeError("DOM object constructor cannot be called as a function.", args.GetIsolate());
if (ConstructorMode::current() == ConstructorMode::WrapExistingObject)
return args.Holder();
ScriptExecutionContext* context = getScriptExecutionContext();
if (!args.Length()) {
RefPtr<Blob> blob = Blob::create();
return toV8(blob.get(), args.Holder(), args.GetIsolate());
}
v8::Local<v8::Value> firstArg = args[0];
if (!firstArg->IsArray())
return throwTypeError("First argument of the constructor is not of type Array", args.GetIsolate());
String type;
String endings = ASCIILiteral("transparent");
if (args.Length() > 1) {
if (!args[1]->IsObject())
return throwTypeError("Second argument of the constructor is not of type Object", args.GetIsolate());
EXCEPTION_BLOCK(Dictionary, dictionary, Dictionary(args[1], args.GetIsolate()));
v8::TryCatch tryCatchEndings;
bool containsEndings = dictionary.get("endings", endings);
if (tryCatchEndings.HasCaught())
return throwError(tryCatchEndings.Exception(), args.GetIsolate());
if (containsEndings) {
if (endings != "transparent" && endings != "native")
return throwTypeError("The endings property must be either \"transparent\" or \"native\"", args.GetIsolate());
}
v8::TryCatch tryCatchType;
dictionary.get("type", type);
if (tryCatchType.HasCaught())
return throwError(tryCatchType.Exception(), args.GetIsolate());
if (!type.containsOnlyASCII())
return throwError(SyntaxError, "type must consist of ASCII characters", args.GetIsolate());
type.makeLower();
}
ASSERT(endings == "transparent" || endings == "native");
RefPtr<WebKitBlobBuilder> blobBuilder = WebKitBlobBuilder::create();
EXCEPTION_BLOCK(v8::Local<v8::Array>, blobParts, v8::Local<v8::Array>::Cast(firstArg));
uint32_t length = blobParts->Length();
for (uint32_t i = 0; i < length; ++i) {
v8::Local<v8::Value> item = blobParts->Get(v8::Uint32::New(i));
ASSERT(!item.IsEmpty());
#if ENABLE(BLOB)
if (V8ArrayBuffer::HasInstance(item)) {
ArrayBuffer* arrayBuffer = V8ArrayBuffer::toNative(v8::Handle<v8::Object>::Cast(item));
ASSERT(arrayBuffer);
blobBuilder->append(context, arrayBuffer);
} else if (V8ArrayBufferView::HasInstance(item)) {
ArrayBufferView* arrayBufferView = V8ArrayBufferView::toNative(v8::Handle<v8::Object>::Cast(item));
ASSERT(arrayBufferView);
blobBuilder->append(arrayBufferView);
} else
#endif
if (V8Blob::HasInstance(item)) {
Blob* blob = V8Blob::toNative(v8::Handle<v8::Object>::Cast(item));
ASSERT(blob);
blobBuilder->append(blob);
} else {
EXCEPTION_BLOCK(String, stringValue, toWebCoreString(item));
blobBuilder->append(stringValue, endings, ASSERT_NO_EXCEPTION);
}
}
RefPtr<Blob> blob = blobBuilder->getBlob(type, BlobConstructedByConstructor);
return toV8(blob.get(), args.Holder(), args.GetIsolate());
}
} // namespace WebCore
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