EncodedJSValue JSC_HOST_CALL JSAudioContextConstructor::constructJSAudioContext(ExecState* exec)
{
JSAudioContextConstructor* jsConstructor = jsCast<JSAudioContextConstructor*>(exec->callee());
if (!jsConstructor)
return throwVMError(exec, createReferenceError(exec, "AudioContext constructor callee is unavailable"));
ScriptExecutionContext* scriptExecutionContext = jsConstructor->scriptExecutionContext();
if (!scriptExecutionContext)
return throwVMError(exec, createReferenceError(exec, "AudioContext constructor script execution context is unavailable"));
if (!scriptExecutionContext->isDocument())
return throwVMError(exec, createReferenceError(exec, "AudioContext constructor called in a script execution context which is not a document"));
Document* document = static_cast<Document*>(scriptExecutionContext);
RefPtr<AudioContext> audioContext;
if (!exec->argumentCount()) {
// Constructor for default AudioContext which talks to audio hardware.
ExceptionCode ec = 0;
audioContext = AudioContext::create(document, ec);
if (ec) {
setDOMException(exec, ec);
return JSValue::encode(JSValue());
}
if (!audioContext.get())
return throwVMError(exec, createSyntaxError(exec, "audio resources unavailable for AudioContext construction"));
} else {
// Constructor for offline (render-target) AudioContext which renders into an AudioBuffer.
// new AudioContext(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
if (exec->argumentCount() < 3)
return throwVMError(exec, createNotEnoughArgumentsError(exec));
int32_t numberOfChannels = exec->argument(0).toInt32(exec);
int32_t numberOfFrames = exec->argument(1).toInt32(exec);
float sampleRate = exec->argument(2).toFloat(exec);
if (numberOfChannels <= 0 || numberOfChannels > 10)
return throwVMError(exec, createSyntaxError(exec, "Invalid number of channels"));
if (numberOfFrames <= 0)
return throwVMError(exec, createSyntaxError(exec, "Invalid number of frames"));
if (sampleRate <= 0)
return throwVMError(exec, createSyntaxError(exec, "Invalid sample rate"));
ExceptionCode ec = 0;
audioContext = AudioContext::createOfflineContext(document, numberOfChannels, numberOfFrames, sampleRate, ec);
if (ec) {
setDOMException(exec, ec);
return throwVMError(exec, createSyntaxError(exec, "Error creating OfflineAudioContext"));
}
}
if (!audioContext.get())
return throwVMError(exec, createReferenceError(exec, "Error creating AudioContext"));
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), AudioContext, audioContext.get()));
}
JSObject* createUndefinedVariableError(ExecState* exec, const Identifier& ident)
{
if (exec->propertyNames().isPrivateName(ident)) {
String message(makeString("Can't find private variable: @", exec->propertyNames().lookUpPublicName(ident).string()));
return createReferenceError(exec, message);
}
String message(makeString("Can't find variable: ", ident.string()));
return createReferenceError(exec, message);
}
EncodedJSValue JSC_HOST_CALL JSKeyboardEventConstructor::constructJSKeyboardEvent(ExecState* exec)
{
JSKeyboardEventConstructor* jsConstructor = jsCast<JSKeyboardEventConstructor*>(exec->callee());
ScriptExecutionContext* executionContext = jsConstructor->scriptExecutionContext();
if (!executionContext)
return throwVMError(exec, createReferenceError(exec, "Constructor associated execution context is unavailable"));
AtomicString eventType = exec->argument(0).toString(exec)->value(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
KeyboardEventInit eventInit;
JSValue initializerValue = exec->argument(1);
if (!initializerValue.isUndefinedOrNull()) {
// Given the above test, this will always yield an object.
JSObject* initializerObject = initializerValue.toObject(exec);
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(exec, initializerObject);
// Attempt to fill in the EventInit.
if (!fillKeyboardEventInit(eventInit, dictionary))
return JSValue::encode(jsUndefined());
}
RefPtr<KeyboardEvent> event = KeyboardEvent::create(eventType, eventInit);
return JSValue::encode(toJS(exec, jsConstructor->globalObject(), event.get()));
}
EncodedJSValue JSC_HOST_CALL constructJSRTCPeerConnection(ExecState* exec)
{
// Spec says that we must have at least one arument, the RTCConfiguration.
if (exec->argumentCount() < 1)
return throwVMError(exec, createNotEnoughArgumentsError(exec));
ExceptionCode ec = 0;
Dictionary rtcConfiguration(exec, exec->argument(0));
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (!rtcConfiguration.isObject())
return throwVMError(exec, createTypeError(exec, "RTCPeerConnection argument must be a valid Dictionary"));
DOMConstructorObject* jsConstructor = jsCast<DOMConstructorObject*>(exec->callee());
ScriptExecutionContext* scriptExecutionContext = jsConstructor->scriptExecutionContext();
if (!scriptExecutionContext)
return throwVMError(exec, createReferenceError(exec, "RTCPeerConnection constructor associated document is unavailable"));
auto peerConnection = RTCPeerConnection::create(*scriptExecutionContext, rtcConfiguration, ec);
if (ec == TYPE_MISMATCH_ERR) {
setDOMException(exec, ec);
return throwVMError(exec, createTypeError(exec, "Invalid RTCPeerConnection constructor arguments"));
}
if (ec) {
setDOMException(exec, ec);
return throwVMError(exec, createTypeError(exec, "Error creating RTCPeerConnection"));
}
return JSValue::encode(CREATE_DOM_WRAPPER(jsConstructor->globalObject(), RTCPeerConnection, peerConnection.releaseNonNull()));
}
EncodedJSValue JSC_HOST_CALL JSTestInterfaceConstructor::constructJSTestInterface(ExecState* exec)
{
ScriptExecutionContext* context = static_cast<JSTestInterfaceConstructor*>(exec->callee())->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "Reference error"));
return JSValue::encode(asObject(toJS(exec, static_cast<JSTestInterfaceConstructor*>(exec->callee())->globalObject(), TestInterface::create(context))));
}
static EncodedJSValue JSC_HOST_CALL constructHTMLOptionElement(ExecState* exec)
{
JSOptionConstructor* jsConstructor = static_cast<JSOptionConstructor*>(exec->callee());
Document* document = jsConstructor->document();
if (!document)
return throwVMError(exec, createReferenceError(exec, "Option constructor associated document is unavailable"));
String data;
if ((exec->argumentCount() >= 1) && !exec->argument(0).isUndefined())
data = ustringToString(exec->argument(0).toString(exec));
String value;
if ((exec->argumentCount() >= 2) && !exec->argument(1).isUndefined())
value = ustringToString(exec->argument(1).toString(exec));
bool defaultSelected = (exec->argumentCount() >= 3) && exec->argument(2).toBoolean(exec);
bool selected = (exec->argumentCount() >= 4) && exec->argument(3).toBoolean(exec);
ExceptionCode ec = 0;
RefPtr<HTMLOptionElement> element = HTMLOptionElement::createForJSConstructor(document, data, value, defaultSelected, selected, ec);
if (ec) {
setDOMException(exec, ec);
return JSValue::encode(JSValue());
}
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), element.release())));
}
static EncodedJSValue JSC_HOST_CALL constructImage(ExecState* exec)
{
JSImageConstructor* jsConstructor = jsCast<JSImageConstructor*>(exec->callee());
Document* document = jsConstructor->document();
if (!document)
return throwVMError(exec, createReferenceError(exec, "Image constructor associated document is unavailable"));
// Calling toJS on the document causes the JS document wrapper to be
// added to the window object. This is done to ensure that JSDocument::visit
// will be called, which will cause the image element to be marked if necessary.
toJS(exec, jsConstructor->globalObject(), document);
int width;
int height;
int* optionalWidth = 0;
int* optionalHeight = 0;
if (exec->argumentCount() > 0) {
width = exec->argument(0).toInt32(exec);
optionalWidth = &width;
}
if (exec->argumentCount() > 1) {
height = exec->argument(1).toInt32(exec);
optionalHeight = &height;
}
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(),
HTMLImageElement::createForJSConstructor(*document, optionalWidth, optionalHeight))));
}
EncodedJSValue JSC_HOST_CALL JSMessageChannelConstructor::constructJSMessageChannel(ExecState* exec)
{
JSMessageChannelConstructor* jsConstructor = static_cast<JSMessageChannelConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "MessageChannel constructor associated document is unavailable"));
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), MessageChannel::create(context))));
}
EncodedJSValue JSC_HOST_CALL JSMessageChannelConstructor::constructJSMessageChannel(ExecState* exec)
{
JSMessageChannelConstructor* castedThis = jsCast<JSMessageChannelConstructor*>(exec->callee());
ScriptExecutionContext* context = castedThis->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "MessageChannel constructor associated document is unavailable"));
RefPtr<MessageChannel> object = MessageChannel::create(*context);
return JSValue::encode(asObject(toJS(exec, castedThis->globalObject(), object.get())));
}
JSValue createUndefinedVariableError(ExecState* exec, const Identifier& ident, unsigned bytecodeOffset, CodeBlock* codeBlock)
{
int startOffset = 0;
int endOffset = 0;
int divotPoint = 0;
int line = codeBlock->expressionRangeForBytecodeOffset(exec, bytecodeOffset, divotPoint, startOffset, endOffset);
UString message(makeUString("Can't find variable: ", ident.ustring()));
JSObject* exception = addErrorInfo(exec, createReferenceError(exec, message), line, codeBlock->ownerExecutable()->source(), divotPoint, startOffset, endOffset);
return exception;
}
EncodedJSValue JSC_HOST_CALL JSXMLHttpRequestConstructor::constructJSXMLHttpRequest(ExecState* exec)
{
JSXMLHttpRequestConstructor* jsConstructor = static_cast<JSXMLHttpRequestConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "XMLHttpRequest constructor associated document is unavailable"));
RefPtr<XMLHttpRequest> xmlHttpRequest = XMLHttpRequest::create(context);
return JSValue::encode(CREATE_DOM_OBJECT_WRAPPER(exec, jsConstructor->globalObject(), XMLHttpRequest, xmlHttpRequest.get()));
}
EncodedJSValue JSC_HOST_CALL JSDeprecatedPeerConnectionConstructor::constructJSDeprecatedPeerConnection(ExecState* exec)
{
JSDeprecatedPeerConnectionConstructor* jsConstructor = static_cast<JSDeprecatedPeerConnectionConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "DeprecatedPeerConnection constructor associated document is unavailable"));
if (exec->argumentCount() < 2)
return throwVMError(exec, createTypeError(exec, "Not enough arguments"));
String serverConfiguration = ustringToString(exec->argument(0).toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(JSValue());
RefPtr<SignalingCallback> signalingCallback = createFunctionOnlyCallback<JSSignalingCallback>(exec, static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject()), exec->argument(1));
if (exec->hadException())
return JSValue::encode(JSValue());
RefPtr<DeprecatedPeerConnection> peerConnection = DeprecatedPeerConnection::create(context, serverConfiguration, signalingCallback.release());
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), DeprecatedPeerConnection, peerConnection.get()));
}
EncodedJSValue JSC_HOST_CALL JSWebSocketConstructor::constructJSWebSocket(ExecState* exec)
{
JSWebSocketConstructor* jsConstructor = static_cast<JSWebSocketConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "WebSocket constructor associated document is unavailable"));
if (!exec->argumentCount())
return throwVMError(exec, createSyntaxError(exec, "Not enough arguments"));
String urlString = ustringToString(exec->argument(0).toString(exec)->value(exec));
if (exec->hadException())
return throwVMError(exec, createSyntaxError(exec, "wrong URL"));
RefPtr<WebSocket> webSocket = WebSocket::create(context);
ExceptionCode ec = 0;
if (exec->argumentCount() < 2)
webSocket->connect(urlString, ec);
else {
JSValue protocolsValue = exec->argument(1);
if (isJSArray(protocolsValue)) {
Vector<String> protocols;
JSArray* protocolsArray = asArray(protocolsValue);
for (unsigned i = 0; i < protocolsArray->length(); ++i) {
String protocol = ustringToString(protocolsArray->getIndex(i).toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(JSValue());
protocols.append(protocol);
}
webSocket->connect(urlString, protocols, ec);
} else {
String protocol = ustringToString(protocolsValue.toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(JSValue());
webSocket->connect(urlString, protocol, ec);
}
}
setDOMException(exec, ec);
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), WebSocket, webSocket.get()));
}
EncodedJSValue JSC_HOST_CALL JSTestInterfaceConstructor::constructJSTestInterface(ExecState* exec)
{
JSTestInterfaceConstructor* jsConstructor = static_cast<JSTestInterfaceConstructor*>(exec->callee());
if (exec->argumentCount() < 1)
return throwVMError(exec, createTypeError(exec, "Not enough arguments"));
ExceptionCode ec = 0;
const String& str1(ustringToString(MAYBE_MISSING_PARAMETER(exec, 0, DefaultIsUndefined).isEmpty() ? UString() : MAYBE_MISSING_PARAMETER(exec, 0, DefaultIsUndefined).toString(exec)->value(exec)));
if (exec->hadException())
return JSValue::encode(jsUndefined());
const String& str2(ustringToString(MAYBE_MISSING_PARAMETER(exec, 1, DefaultIsUndefined).isEmpty() ? UString() : MAYBE_MISSING_PARAMETER(exec, 1, DefaultIsUndefined).toString(exec)->value(exec)));
if (exec->hadException())
return JSValue::encode(jsUndefined());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "TestInterface constructor associated document is unavailable"));
RefPtr<TestInterface> object = TestInterface::create(context, str1, str2, ec);
if (ec) {
setDOMException(exec, ec);
return JSValue::encode(JSValue());
}
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), object.get())));
}
EncodedJSValue JSC_HOST_CALL JSTestInterfaceConstructor::constructJSTestInterface(ExecState* exec)
{
JSTestInterfaceConstructor* castedThis = jsCast<JSTestInterfaceConstructor*>(exec->callee());
if (exec->argumentCount() < 1)
return throwVMError(exec, createNotEnoughArgumentsError(exec));
ExceptionCode ec = 0;
const String& str1(exec->argument(0).isEmpty() ? String() : exec->argument(0).toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
const String& str2(exec->argument(1).isEmpty() ? String() : exec->argument(1).toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
ScriptExecutionContext* context = castedThis->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "TestInterface constructor associated document is unavailable"));
RefPtr<TestInterface> object = TestInterface::create(context, str1, str2, ec);
if (ec) {
setDOMException(exec, ec);
return JSValue::encode(JSValue());
}
return JSValue::encode(asObject(toJS(exec, castedThis->globalObject(), object.get())));
}
static EncodedJSValue JSC_HOST_CALL constructAudio(ExecState* exec)
{
JSAudioConstructor* jsConstructor = static_cast<JSAudioConstructor*>(exec->callee());
Document* document = jsConstructor->document();
if (!document)
return throwVMError(exec, createReferenceError(exec, "Audio constructor associated document is unavailable"));
// Calling toJS on the document causes the JS document wrapper to be
// added to the window object. This is done to ensure that JSDocument::visitChildren
// will be called, which will cause the audio element to be marked if necessary.
toJS(exec, jsConstructor->globalObject(), document);
// FIXME: This converts an undefined argument to the string "undefined", but possibly we
// should treat it as if no argument was passed instead, by checking the value of exec->argument
// rather than looking at exec->argumentCount.
String src;
if (exec->argumentCount() > 0)
src = ustringToString(exec->argument(0).toString(exec));
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(),
HTMLAudioElement::createForJSConstructor(document, src))));
}
JSValue JSIDBObjectStore::createIndex(ExecState* exec)
{
ScriptExecutionContext* context = jsCast<JSDOMGlobalObject*>(exec->lexicalGlobalObject())->scriptExecutionContext();
if (!context)
return exec->vm().throwException(exec, createReferenceError(exec, "IDBObjectStore script execution context is unavailable"));
if (exec->argumentCount() < 2)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
String name = exec->argument(0).toString(exec)->value(exec);
if (exec->hadException())
return jsUndefined();
IDBKeyPath keyPath = idbKeyPathFromValue(exec, exec->argument(1));
if (exec->hadException())
return jsUndefined();
JSValue optionsValue = exec->argument(2);
if (!optionsValue.isUndefinedOrNull() && !optionsValue.isObject())
return throwTypeError(exec, "Not an object.");
bool unique = false;
bool multiEntry = false;
if (!optionsValue.isUndefinedOrNull()) {
unique = optionsValue.get(exec, Identifier(exec, "unique")).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
multiEntry = optionsValue.get(exec, Identifier(exec, "multiEntry")).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
}
ExceptionCode ec = 0;
JSValue result = toJS(exec, globalObject(), impl().createIndex(context, name, keyPath, unique, multiEntry, ec).get());
setDOMException(exec, ec);
return result;
}
EncodedJSValue JSC_HOST_CALL JSEventSourceConstructor::constructJSEventSource(ExecState* exec)
{
if (exec->argumentCount() < 1)
return throwVMError(exec, createTypeError(exec, "Not enough arguments"));
UString url = exec->argument(0).toString(exec);
if (exec->hadException())
return JSValue::encode(JSValue());
JSEventSourceConstructor* jsConstructor = static_cast<JSEventSourceConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "EventSource constructor associated document is unavailable"));
ExceptionCode ec = 0;
RefPtr<EventSource> eventSource = EventSource::create(ustringToString(url), context, ec);
if (ec) {
setDOMException(exec, ec);
return JSValue::encode(JSValue());
}
return JSValue::encode(asObject(toJS(exec, jsConstructor->globalObject(), eventSource.release())));
}
JSObject* createErrorForInvalidGlobalAssignment(ExecState* exec, const UString& propertyName)
{
return createReferenceError(exec, makeUString("Strict mode forbids implicit creation of global property '", propertyName, "'"));
}
JSObject* createUndefinedVariableError(ExecState* exec, const Identifier& ident)
{
UString message(makeUString("Can't find variable: ", ident.ustring()));
return createReferenceError(exec, message);
}
EncodedJSValue JSC_HOST_CALL JSBlobConstructor::constructJSBlob(ExecState* exec)
{
JSBlobConstructor* jsConstructor = jsCast<JSBlobConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "Blob constructor associated document is unavailable"));
if (!exec->argumentCount()) {
RefPtr<Blob> blob = Blob::create();
return JSValue::encode(CREATE_DOM_WRAPPER(jsConstructor->globalObject(), Blob, blob.get()));
}
unsigned blobPartsLength = 0;
JSObject* blobParts = toJSSequence(exec, exec->argument(0), blobPartsLength);
if (exec->hadException())
return JSValue::encode(jsUndefined());
ASSERT(blobParts);
String type;
String endings = ASCIILiteral("transparent");
if (exec->argumentCount() > 1) {
JSValue blobPropertyBagValue = exec->argument(1);
if (!blobPropertyBagValue.isObject())
return throwVMError(exec, createTypeError(exec, "Second argument of the constructor is not of type Object"));
// Given the above test, this will always yield an object.
JSObject* blobPropertyBagObject = blobPropertyBagValue.toObject(exec);
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(exec, blobPropertyBagObject);
// Attempt to get the endings property and validate it.
bool containsEndings = dictionary.get("endings", endings);
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (containsEndings) {
if (endings != "transparent" && endings != "native")
return throwVMError(exec, createTypeError(exec, "The endings property must be either \"transparent\" or \"native\""));
}
// Attempt to get the type property.
dictionary.get("type", type);
if (exec->hadException())
return JSValue::encode(jsUndefined());
}
ASSERT(endings == "transparent" || endings == "native");
BlobBuilder blobBuilder;
for (unsigned i = 0; i < blobPartsLength; ++i) {
JSValue item = blobParts->get(exec, i);
if (exec->hadException())
return JSValue::encode(jsUndefined());
#if ENABLE(BLOB)
if (ArrayBuffer* arrayBuffer = toArrayBuffer(item))
blobBuilder.append(arrayBuffer);
else if (RefPtr<ArrayBufferView> arrayBufferView = toArrayBufferView(item))
blobBuilder.append(arrayBufferView.release());
else
#endif
if (Blob* blob = toBlob(item))
blobBuilder.append(blob);
else {
String string = item.toString(exec)->value(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
blobBuilder.append(string, endings);
}
}
RefPtr<Blob> blob = Blob::create(blobBuilder.finalize(), Blob::normalizedContentType(type));
return JSValue::encode(CREATE_DOM_WRAPPER(jsConstructor->globalObject(), Blob, blob.get()));
}
JSObject* RuntimeObject::throwInvalidAccessError(ExecState* exec)
{
return exec->vm().throwException(exec, createReferenceError(exec, "Trying to access object from destroyed plug-in."));
}
JSObject* createTDZError(ExecState* exec)
{
return createReferenceError(exec, "Cannot access uninitialized variable.");
}
EncodedJSValue JSC_HOST_CALL JSBlobConstructor::constructJSBlob(ExecState* exec)
{
JSBlobConstructor* jsConstructor = jsCast<JSBlobConstructor*>(exec->callee());
ScriptExecutionContext* context = jsConstructor->scriptExecutionContext();
if (!context)
return throwVMError(exec, createReferenceError(exec, "Blob constructor associated document is unavailable"));
if (!exec->argumentCount()) {
RefPtr<Blob> blob = Blob::create();
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), Blob, blob.get()));
}
JSValue firstArg = exec->argument(0);
if (!isJSArray(firstArg))
return throwVMError(exec, createTypeError(exec, "First argument of the constructor is not of type Array"));
String type;
String endings = "transparent";
if (exec->argumentCount() > 1) {
JSValue blobPropertyBagValue = exec->argument(1);
if (!blobPropertyBagValue.isObject())
return throwVMError(exec, createTypeError(exec, "Second argument of the constructor is not of type Object"));
// Given the above test, this will always yield an object.
JSObject* blobPropertyBagObject = blobPropertyBagValue.toObject(exec);
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(exec, blobPropertyBagObject);
// Attempt to get the endings property and validate it.
bool containsEndings = dictionary.get("endings", endings);
if (exec->hadException())
return JSValue::encode(jsUndefined());
if (containsEndings) {
if (endings != "transparent" && endings != "native")
return throwVMError(exec, createTypeError(exec, "The endings property must be either \"transparent\" or \"native\""));
}
// Attempt to get the type property.
dictionary.get("type", type);
if (exec->hadException())
return JSValue::encode(jsUndefined());
}
ASSERT(endings == "transparent" || endings == "native");
// FIXME: this would be better if the WebKitBlobBuilder were a stack object to avoid the allocation.
RefPtr<WebKitBlobBuilder> blobBuilder = WebKitBlobBuilder::create();
JSArray* array = asArray(firstArg);
unsigned length = array->length();
for (unsigned i = 0; i < length; ++i) {
JSValue item = array->getIndex(i);
#if ENABLE(BLOB)
if (item.inherits(&JSArrayBuffer::s_info))
blobBuilder->append(toArrayBuffer(item));
else
#endif
if (item.inherits(&JSBlob::s_info))
blobBuilder->append(toBlob(item));
else {
String string = ustringToString(item.toString(exec)->value(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
blobBuilder->append(string, endings, ASSERT_NO_EXCEPTION);
}
}
RefPtr<Blob> blob = blobBuilder->getBlob(type);
return JSValue::encode(CREATE_DOM_WRAPPER(exec, jsConstructor->globalObject(), Blob, blob.get()));
}
EncodedJSValue JSC_HOST_CALL constructJSFile(ExecState& exec)
{
auto* constructor = jsCast<DOMConstructorObject*>(exec.callee());
ScriptExecutionContext* context = constructor->scriptExecutionContext();
if (!context)
return throwVMError(&exec, createReferenceError(&exec, "File constructor associated document is unavailable"));
JSValue arg = exec.argument(0);
if (arg.isUndefinedOrNull())
return throwVMTypeError(&exec, ASCIILiteral("First argument to File constructor must be a valid sequence, was undefined or null"));
unsigned blobPartsLength = 0;
JSObject* blobParts = toJSSequence(exec, arg, blobPartsLength);
if (exec.hadException())
return JSValue::encode(jsUndefined());
ASSERT(blobParts);
arg = exec.argument(1);
if (arg.isUndefined())
return throwVMTypeError(&exec, ASCIILiteral("Second argument to File constructor must be a valid string, was undefined"));
String filename = arg.toWTFString(&exec).replace('/', ':');
if (exec.hadException())
return JSValue::encode(jsUndefined());
String normalizedType;
Optional<int64_t> lastModified;
arg = exec.argument(2);
if (!arg.isUndefinedOrNull()) {
JSObject* filePropertyBagObject = arg.getObject();
if (!filePropertyBagObject)
return throwVMTypeError(&exec, ASCIILiteral("Third argument of the constructor is not of type Object"));
// Create the dictionary wrapper from the initializer object.
JSDictionary dictionary(&exec, filePropertyBagObject);
// Attempt to get the type property.
String type;
dictionary.get("type", type);
if (exec.hadException())
return JSValue::encode(jsUndefined());
normalizedType = Blob::normalizedContentType(type);
// Only try to parse the lastModified date if there was not an invalid type argument.
if (type.isEmpty() || !normalizedType.isEmpty()) {
dictionary.get("lastModified", lastModified);
if (exec.hadException())
return JSValue::encode(jsUndefined());
}
}
if (!lastModified)
lastModified = currentTimeMS();
BlobBuilder blobBuilder;
for (unsigned i = 0; i < blobPartsLength; ++i) {
JSValue item = blobParts->get(&exec, i);
if (exec.hadException())
return JSValue::encode(jsUndefined());
if (ArrayBuffer* arrayBuffer = toArrayBuffer(item))
blobBuilder.append(arrayBuffer);
else if (RefPtr<ArrayBufferView> arrayBufferView = toArrayBufferView(item))
blobBuilder.append(WTFMove(arrayBufferView));
else if (Blob* blob = JSBlob::toWrapped(item))
blobBuilder.append(blob);
else {
String string = item.toWTFString(&exec);
if (exec.hadException())
return JSValue::encode(jsUndefined());
blobBuilder.append(string, ASCIILiteral("transparent"));
}
}
auto file = File::create(blobBuilder.finalize(), filename, normalizedType, lastModified.value());
return JSValue::encode(CREATE_DOM_WRAPPER(constructor->globalObject(), File, WTFMove(file)));
}
EncodedJSValue JSC_HOST_CALL constructJSAudioContext(ExecState* exec)
{
DOMConstructorObject* jsConstructor = jsCast<DOMConstructorObject*>(exec->callee());
if (!jsConstructor)
return throwVMError(exec, createReferenceError(exec, "AudioContext constructor callee is unavailable"));
ScriptExecutionContext* scriptExecutionContext = jsConstructor->scriptExecutionContext();
if (!scriptExecutionContext)
return throwVMError(exec, createReferenceError(exec, "AudioContext constructor script execution context is unavailable"));
if (!scriptExecutionContext->isDocument())
return throwVMError(exec, createReferenceError(exec, "AudioContext constructor called in a script execution context which is not a document"));
Document& document = toDocument(*scriptExecutionContext);
RefPtr<AudioContext> audioContext;
if (!exec->argumentCount()) {
// Constructor for default AudioContext which talks to audio hardware.
ExceptionCode ec = 0;
audioContext = AudioContext::create(document, ec);
if (ec) {
setDOMException(exec, ec);
return JSValue::encode(JSValue());
}
if (!audioContext.get())
return throwVMError(exec, createSyntaxError(exec, "audio resources unavailable for AudioContext construction"));
} else {
#if ENABLE(LEGACY_WEB_AUDIO)
// Constructor for offline (render-target) AudioContext which renders into an AudioBuffer.
// new AudioContext(in unsigned long numberOfChannels, in unsigned long numberOfFrames, in float sampleRate);
document.addConsoleMessage(MessageSource::JS, MessageLevel::Warning, ASCIILiteral("Deprecated AudioContext constructor: use OfflineAudioContext instead"));
if (exec->argumentCount() < 3)
return throwVMError(exec, createNotEnoughArgumentsError(exec));
int32_t numberOfChannels = exec->argument(0).toInt32(exec);
int32_t numberOfFrames = exec->argument(1).toInt32(exec);
float sampleRate = exec->argument(2).toFloat(exec);
if (numberOfChannels <= 0 || numberOfChannels > 10)
return throwVMError(exec, createSyntaxError(exec, "Invalid number of channels"));
if (numberOfFrames <= 0)
return throwVMError(exec, createSyntaxError(exec, "Invalid number of frames"));
if (sampleRate <= 0)
return throwVMError(exec, createSyntaxError(exec, "Invalid sample rate"));
ExceptionCode ec = 0;
audioContext = OfflineAudioContext::create(document, numberOfChannels, numberOfFrames, sampleRate, ec);
if (ec) {
setDOMException(exec, ec);
return throwVMError(exec, createSyntaxError(exec, "Error creating OfflineAudioContext"));
}
#else
return throwVMError(exec, createSyntaxError(exec, "Illegal AudioContext constructor"));
#endif
}
if (!audioContext.get())
return throwVMError(exec, createReferenceError(exec, "Error creating AudioContext"));
return JSValue::encode(CREATE_DOM_WRAPPER(jsConstructor->globalObject(), AudioContext, audioContext.get()));
}
JSObject* JSNPObject::throwInvalidAccessError(ExecState* exec)
{
return throwError(exec, createReferenceError(exec, "Trying to access object from destroyed plug-in."));
}
JSObject* createReferenceError(ExecState* exec, const String& message)
{
return createReferenceError(exec->lexicalGlobalObject(), message);
}
JSObject* createReferenceError(ExecState* exec, const String& message)
{
return createReferenceError(exec, message, nullptr);
}
