void InspectorAnimationAgent::resolveAnimation(
ErrorString* errorString,
const String& animationId,
std::unique_ptr<v8_inspector::protocol::Runtime::API::RemoteObject>*
result) {
blink::Animation* animation = assertAnimation(errorString, animationId);
if (!animation)
return;
if (m_idToAnimationClone.get(animationId))
animation = m_idToAnimationClone.get(animationId);
const Element* element = toKeyframeEffect(animation->effect())->target();
Document* document = element->ownerDocument();
LocalFrame* frame = document ? document->frame() : nullptr;
ScriptState* scriptState = frame ? ScriptState::forMainWorld(frame) : nullptr;
if (!scriptState) {
*errorString = "Element not associated with a document.";
return;
}
ScriptState::Scope scope(scriptState);
static const char kAnimationObjectGroup[] = "animation";
m_v8Session->releaseObjectGroup(
toV8InspectorStringView(kAnimationObjectGroup));
*result = m_v8Session->wrapObject(
scriptState->context(),
toV8(animation, scriptState->context()->Global(), scriptState->isolate()),
toV8InspectorStringView(kAnimationObjectGroup));
if (!*result)
*errorString = "Element not associated with a document.";
}
void V8InjectedScriptHost::inspectCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
{
if (info.Length() < 2)
return;
InjectedScriptHost* host = V8InjectedScriptHost::unwrap(info.GetIsolate()->GetCurrentContext(), info.Holder());
ScriptState* scriptState = ScriptState::current(info.GetIsolate());
ScriptState::Scope scope(scriptState);
host->inspectImpl(toJSONValue(scriptState->context(), info[0]), toJSONValue(scriptState->context(), info[1]));
}
void injectInternalsObject(v8::Local<v8::Context> context)
{
ScriptState* scriptState = ScriptState::from(context);
ScriptState::Scope scope(scriptState);
v8::Local<v8::Object> global = scriptState->context()->Global();
ExecutionContext* executionContext = scriptState->executionContext();
if (executionContext->isDocument()) {
v8::Local<v8::Value> internals = toV8(Internals::create(toDocument(executionContext)), global, scriptState->isolate());
ASSERT(!internals.IsEmpty());
v8CallOrCrash(global->Set(scriptState->context(), v8AtomicString(scriptState->isolate(), Internals::internalsId), internals));
}
}
// Create a V8 object with an interceptor of NPObjectPropertyGetter.
bool ScriptController::bindToWindowObject(LocalFrame* frame, const String& key, NPObject* object)
{
ScriptState* scriptState = ScriptState::forMainWorld(frame);
if (!scriptState->contextIsValid())
return false;
ScriptState::Scope scope(scriptState);
v8::Local<v8::Object> value = createV8ObjectForNPObject(isolate(), object, 0);
// Attach to the global object.
return v8CallBoolean(scriptState->context()->Global()->Set(scriptState->context(), v8String(isolate(), key), value));
}
static void promiseRejectHandler(v8::PromiseRejectMessage data, RejectedPromises& rejectedPromises, const String& fallbackResourceName)
{
if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
rejectedPromises.handlerAdded(data);
return;
}
ASSERT(data.GetEvent() == v8::kPromiseRejectWithNoHandler);
v8::Local<v8::Promise> promise = data.GetPromise();
v8::Isolate* isolate = promise->GetIsolate();
ScriptState* scriptState = ScriptState::current(isolate);
v8::Local<v8::Value> exception = data.GetValue();
if (V8DOMWrapper::isWrapper(isolate, exception)) {
// Try to get the stack & location from a wrapped exception object (e.g. DOMException).
ASSERT(exception->IsObject());
v8::Local<v8::Object> obj = v8::Local<v8::Object>::Cast(exception);
v8::Local<v8::Value> error = V8HiddenValue::getHiddenValue(scriptState, obj, V8HiddenValue::error(isolate));
if (!error.IsEmpty())
exception = error;
}
int scriptId = 0;
int lineNumber = 0;
int columnNumber = 0;
String resourceName = fallbackResourceName;
String errorMessage;
AccessControlStatus corsStatus = NotSharableCrossOrigin;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = nullptr;
v8::Local<v8::Message> message = v8::Exception::CreateMessage(isolate, exception);
if (!message.IsEmpty()) {
V8StringResource<> v8ResourceName(message->GetScriptOrigin().ResourceName());
if (v8ResourceName.prepare())
resourceName = v8ResourceName;
scriptId = message->GetScriptOrigin().ScriptID()->Value();
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
// message->Get() can be empty here. https://crbug.com/450330
errorMessage = toCoreStringWithNullCheck(message->Get());
callStack = extractCallStack(isolate, message, &scriptId);
if (message->IsSharedCrossOrigin())
corsStatus = SharableCrossOrigin;
}
String messageForConsole = extractMessageForConsole(isolate, data.GetValue());
if (!messageForConsole.isEmpty())
errorMessage = "Uncaught " + messageForConsole;
rejectedPromises.rejectedWithNoHandler(scriptState, data, errorMessage, resourceName, scriptId, lineNumber, columnNumber, callStack, corsStatus);
}
static void messageHandlerInMainThread(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
ASSERT(isMainThread());
v8::Isolate* isolate = v8::Isolate::GetCurrent();
// If called during context initialization, there will be no entered window.
LocalDOMWindow* enteredWindow = enteredDOMWindow(isolate);
if (!enteredWindow || !enteredWindow->isCurrentlyDisplayedInFrame())
return;
int scriptId = 0;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = extractCallStack(isolate, message, &scriptId);
String resourceName = extractResourceName(message, enteredWindow->document());
AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
if (message->IsOpaque())
accessControlStatus = OpaqueResource;
else if (message->IsSharedCrossOrigin())
accessControlStatus = SharableCrossOrigin;
ScriptState* scriptState = ScriptState::current(isolate);
String errorMessage = toCoreStringWithNullCheck(message->Get());
int lineNumber = 0;
int columnNumber = 0;
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, resourceName, lineNumber, columnNumber, &scriptState->world());
String messageForConsole = extractMessageForConsole(isolate, data);
if (!messageForConsole.isEmpty())
event->setUnsanitizedMessage("Uncaught " + messageForConsole);
// This method might be called while we're creating a new context. In this case, we
// avoid storing the exception object, as we can't create a wrapper during context creation.
// FIXME: Can we even get here during initialization now that we bail out when GetEntered returns an empty handle?
LocalFrame* frame = enteredWindow->document()->frame();
if (frame && frame->script().existingWindowProxy(scriptState->world())) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(isolate, event.get(), data, scriptState->context()->Global());
}
if (scriptState->world().isPrivateScriptIsolatedWorld()) {
// We allow a private script to dispatch error events even in a EventDispatchForbiddenScope scope.
// Without having this ability, it's hard to debug the private script because syntax errors
// in the private script are not reported to console (the private script just crashes silently).
// Allowing error events in private scripts is safe because error events don't propagate to
// other isolated worlds (which means that the error events won't fire any event listeners
// in user's scripts).
EventDispatchForbiddenScope::AllowUserAgentEvents allowUserAgentEvents;
enteredWindow->document()->reportException(event.release(), scriptId, callStack, accessControlStatus);
} else {
enteredWindow->document()->reportException(event.release(), scriptId, callStack, accessControlStatus);
}
}
void V8MessageEvent::dataAttributeGetterCustom(
const v8::FunctionCallbackInfo<v8::Value>& info) {
ScriptState* scriptState = ScriptState::current(info.GetIsolate());
auto privateCachedData =
V8PrivateProperty::getMessageEventCachedData(info.GetIsolate());
v8::Local<v8::Value> cachedData =
privateCachedData.get(scriptState->context(), info.Holder());
if (!cachedData.IsEmpty()) {
v8SetReturnValue(info, cachedData);
return;
}
MessageEvent* event = V8MessageEvent::toImpl(info.Holder());
v8::Local<v8::Value> result;
switch (event->getDataType()) {
case MessageEvent::DataTypeScriptValue:
result = event->dataAsScriptValue().v8ValueFor(scriptState);
if (result.IsEmpty())
result = v8::Null(info.GetIsolate());
break;
case MessageEvent::DataTypeSerializedScriptValue:
if (SerializedScriptValue* serializedValue =
event->dataAsSerializedScriptValue()) {
MessagePortArray ports = event->ports();
result = serializedValue->deserialize(info.GetIsolate(), &ports);
} else {
result = v8::Null(info.GetIsolate());
}
break;
case MessageEvent::DataTypeString:
result = v8String(info.GetIsolate(), event->dataAsString());
break;
case MessageEvent::DataTypeBlob:
result = toV8(event->dataAsBlob(), info.Holder(), info.GetIsolate());
break;
case MessageEvent::DataTypeArrayBuffer:
result =
toV8(event->dataAsArrayBuffer(), info.Holder(), info.GetIsolate());
break;
}
// Store the result as a private value so this callback returns the cached
// result in future invocations.
privateCachedData.set(scriptState->context(), info.Holder(), result);
v8SetReturnValue(info, result);
}
void InspectorAnimationAgent::resolveAnimation(ErrorString* errorString, const String& animationId, RefPtr<TypeBuilder::Runtime::RemoteObject>& result)
{
Animation* animation = assertAnimation(errorString, animationId);
if (!animation)
return;
if (m_idToAnimationClone.get(animationId))
animation = m_idToAnimationClone.get(animationId);
const Element* element = toKeyframeEffect(animation->effect())->target();
Document* document = element->ownerDocument();
LocalFrame* frame = document ? document->frame() : nullptr;
if (!frame) {
*errorString = "Element not associated with a document.";
return;
}
ScriptState* scriptState = ScriptState::forMainWorld(frame);
InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(scriptState);
if (injectedScript.isEmpty())
return;
ScriptState::Scope scope(scriptState);
v8::Isolate* isolate = scriptState->isolate();
ScriptValue scriptValue = ScriptValue(scriptState, toV8(animation, scriptState->context()->Global(), isolate));
injectedScript.releaseObjectGroup("animation");
result = injectedScript.wrapObject(scriptValue, "animation");
}
static void messageHandlerInWorker(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
V8PerIsolateData* perIsolateData = V8PerIsolateData::from(isolate);
// During the frame teardown, there may not be a valid context.
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
// Exceptions that occur in error handler should be ignored since in that case
// WorkerGlobalScope::reportException will send the exception to the worker object.
if (perIsolateData->isReportingException())
return;
perIsolateData->setReportingException(true);
ExecutionContext* context = scriptState->getExecutionContext();
std::unique_ptr<SourceLocation> location = SourceLocation::fromMessage(isolate, message, context);
ErrorEvent* event = ErrorEvent::create(toCoreStringWithNullCheck(message->Get()), std::move(location), &scriptState->world());
AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;
// If execution termination has been triggered as part of constructing
// the error event from the v8::Message, quietly leave.
if (!isolate->IsExecutionTerminating()) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(scriptState, event, data, scriptState->context()->Global());
scriptState->getExecutionContext()->reportException(event, corsStatus);
}
perIsolateData->setReportingException(false);
}
void WebDevToolsFrontendImpl::didClearWindowObject(WebLocalFrameImpl* frame)
{
if (m_webFrame == frame) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
ScriptState* scriptState = ScriptState::forMainWorld(m_webFrame->frame());
ScriptState::Scope scope(scriptState);
if (m_devtoolsHost)
m_devtoolsHost->disconnectClient();
m_devtoolsHost = DevToolsHost::create(this, m_webFrame->frame());
v8::Local<v8::Object> global = scriptState->context()->Global();
v8::Local<v8::Value> devtoolsHostObj = toV8(m_devtoolsHost.get(), global, scriptState->isolate());
ASSERT(!devtoolsHostObj.IsEmpty());
global->Set(v8AtomicString(isolate, "DevToolsHost"), devtoolsHostObj);
}
if (m_injectedScriptForOrigin.isEmpty())
return;
String origin = frame->securityOrigin().toString();
String script = m_injectedScriptForOrigin.get(origin);
if (script.isEmpty())
return;
static int s_lastScriptId = 0;
StringBuilder scriptWithId;
scriptWithId.append(script);
scriptWithId.append('(');
scriptWithId.appendNumber(++s_lastScriptId);
scriptWithId.append(')');
frame->frame()->script().executeScriptInMainWorld(scriptWithId.toString());
}
static void messageHandlerInMainThread(v8::Local<v8::Message> message,
v8::Local<v8::Value> data) {
ASSERT(isMainThread());
v8::Isolate* isolate = v8::Isolate::GetCurrent();
if (isolate->GetEnteredContext().IsEmpty())
return;
// If called during context initialization, there will be no entered context.
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
ExecutionContext* context = scriptState->getExecutionContext();
std::unique_ptr<SourceLocation> location =
SourceLocation::fromMessage(isolate, message, context);
AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
if (message->IsOpaque())
accessControlStatus = OpaqueResource;
else if (message->IsSharedCrossOrigin())
accessControlStatus = SharableCrossOrigin;
ErrorEvent* event =
ErrorEvent::create(toCoreStringWithNullCheck(message->Get()),
std::move(location), &scriptState->world());
String messageForConsole = extractMessageForConsole(isolate, data);
if (!messageForConsole.isEmpty())
event->setUnsanitizedMessage("Uncaught " + messageForConsole);
// This method might be called while we're creating a new context. In this
// case, we avoid storing the exception object, as we can't create a wrapper
// during context creation.
// FIXME: Can we even get here during initialization now that we bail out when
// GetEntered returns an empty handle?
if (context->isDocument()) {
LocalFrame* frame = toDocument(context)->frame();
if (frame && frame->script().existingWindowProxy(scriptState->world())) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(
scriptState, event, data, scriptState->context()->Global());
}
}
if (scriptState->world().isPrivateScriptIsolatedWorld()) {
// We allow a private script to dispatch error events even in a
// EventDispatchForbiddenScope scope. Without having this ability, it's
// hard to debug the private script because syntax errors in the private
// script are not reported to console (the private script just crashes
// silently). Allowing error events in private scripts is safe because
// error events don't propagate to other isolated worlds (which means that
// the error events won't fire any event listeners in user's scripts).
EventDispatchForbiddenScope::AllowUserAgentEvents allowUserAgentEvents;
context->dispatchErrorEvent(event, accessControlStatus);
} else {
context->dispatchErrorEvent(event, accessControlStatus);
}
}
static void messageHandlerInMainThread(v8::Handle<v8::Message> message, v8::Handle<v8::Value> data)
{
ASSERT(isMainThread());
// It's possible that messageHandlerInMainThread() is invoked while we're initializing a window.
// In that half-baked situation, we don't have a valid context nor a valid world,
// so just return immediately.
if (DOMWrapperWorld::windowIsBeingInitialized())
return;
v8::Isolate* isolate = v8::Isolate::GetCurrent();
// If called during context initialization, there will be no entered window.
LocalDOMWindow* enteredWindow = enteredDOMWindow(isolate);
if (!enteredWindow)
return;
String errorMessage = toCoreString(message->Get());
v8::Handle<v8::StackTrace> stackTrace = message->GetStackTrace();
RefPtr<ScriptCallStack> callStack = nullptr;
int scriptId = message->GetScriptOrigin().ScriptID()->Value();
// Currently stack trace is only collected when inspector is open.
if (!stackTrace.IsEmpty() && stackTrace->GetFrameCount() > 0) {
callStack = createScriptCallStack(stackTrace, ScriptCallStack::maxCallStackSizeToCapture, isolate);
bool success = false;
int topScriptId = callStack->at(0).scriptId().toInt(&success);
if (success && topScriptId == scriptId)
scriptId = 0;
} else {
Vector<ScriptCallFrame> callFrames;
callStack = ScriptCallStack::create(callFrames);
}
v8::Handle<v8::Value> resourceName = message->GetScriptOrigin().ResourceName();
bool shouldUseDocumentURL = resourceName.IsEmpty() || !resourceName->IsString();
String resource = shouldUseDocumentURL ? enteredWindow->document()->url() : toCoreString(resourceName.As<v8::String>());
ScriptState* scriptState = ScriptState::current(isolate);
RefPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, resource, message->GetLineNumber(), message->GetStartColumn() + 1, &scriptState->world());
if (V8DOMWrapper::isDOMWrapper(data)) {
v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(data);
const WrapperTypeInfo* type = toWrapperTypeInfo(obj);
if (V8DOMException::wrapperTypeInfo.isSubclass(type)) {
DOMException* exception = V8DOMException::toNative(obj);
if (exception && !exception->messageForConsole().isEmpty())
event->setUnsanitizedMessage("Uncaught " + exception->toStringForConsole());
}
}
// This method might be called while we're creating a new context. In this case, we
// avoid storing the exception object, as we can't create a wrapper during context creation.
// FIXME: Can we even get here during initialization now that we bail out when GetEntered returns an empty handle?
LocalFrame* frame = enteredWindow->document()->frame();
if (frame && frame->script().existingWindowProxy(scriptState->world())) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(event.get(), data, scriptState->context()->Global(), isolate);
}
enteredWindow->document()->reportException(event.release(), scriptId, callStack);
}
void injectInternalsObject(v8::Local<v8::Context> context)
{
ScriptState* scriptState = ScriptState::from(context);
ScriptState::Scope scope(scriptState);
v8::Handle<v8::Object> global = scriptState->context()->Global();
ExecutionContext* executionContext = scriptState->executionContext();
if (executionContext->isDocument())
global->Set(v8::String::NewFromUtf8(scriptState->isolate(), Internals::internalsId), toV8(Internals::create(toDocument(executionContext)), global, scriptState->isolate()));
}
static void promiseRejectHandlerInWorker(v8::PromiseRejectMessage data)
{
v8::Local<v8::Promise> promise = data.GetPromise();
// Bail out if called during context initialization.
v8::Isolate* isolate = promise->GetIsolate();
ScriptState* scriptState = ScriptState::current(isolate);
if (!scriptState->contextIsValid())
return;
ExecutionContext* executionContext = scriptState->executionContext();
if (!executionContext)
return;
ASSERT(executionContext->isWorkerGlobalScope());
WorkerScriptController* scriptController = toWorkerGlobalScope(executionContext)->script();
ASSERT(scriptController);
if (data.GetEvent() == v8::kPromiseHandlerAddedAfterReject) {
scriptController->rejectedPromises()->handlerAdded(data);
return;
}
ASSERT(data.GetEvent() == v8::kPromiseRejectWithNoHandler);
int scriptId = 0;
int lineNumber = 0;
int columnNumber = 0;
String resourceName;
String errorMessage;
v8::Local<v8::Message> message = v8::Exception::CreateMessage(data.GetValue());
if (!message.IsEmpty()) {
TOSTRING_VOID(V8StringResource<>, resourceName, message->GetScriptOrigin().ResourceName());
scriptId = message->GetScriptOrigin().ScriptID()->Value();
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
// message->Get() can be empty here. https://crbug.com/450330
errorMessage = toCoreStringWithNullCheck(message->Get());
}
scriptController->rejectedPromises()->rejectedWithNoHandler(scriptState, data, errorMessage, resourceName, scriptId, lineNumber, columnNumber, nullptr);
}
void MainThreadDebugger::exceptionThrown(ExecutionContext* context,
ErrorEvent* event) {
LocalFrame* frame = nullptr;
ScriptState* scriptState = nullptr;
if (context->isDocument()) {
frame = toDocument(context)->frame();
if (!frame)
return;
scriptState = event->world() ? ScriptState::forWorld(frame, *event->world())
: nullptr;
} else if (context->isMainThreadWorkletGlobalScope()) {
frame = toMainThreadWorkletGlobalScope(context)->frame();
if (!frame)
return;
scriptState = toMainThreadWorkletGlobalScope(context)
->scriptController()
->getScriptState();
} else {
NOTREACHED();
}
frame->console().reportMessageToClient(JSMessageSource, ErrorMessageLevel,
event->messageForConsole(),
event->location());
const String defaultMessage = "Uncaught";
if (scriptState && scriptState->contextIsValid()) {
ScriptState::Scope scope(scriptState);
v8::Local<v8::Value> exception =
V8ErrorHandler::loadExceptionFromErrorEventWrapper(
scriptState, event, scriptState->context()->Global());
SourceLocation* location = event->location();
String message = event->messageForConsole();
String url = location->url();
v8Inspector()->exceptionThrown(
scriptState->context(), toV8InspectorStringView(defaultMessage),
exception, toV8InspectorStringView(message),
toV8InspectorStringView(url), location->lineNumber(),
location->columnNumber(), location->takeStackTrace(),
location->scriptId());
}
}
void V8HTMLElement::HTMLConstructor(
const v8::FunctionCallbackInfo<v8::Value>& info) {
DCHECK(info.IsConstructCall());
v8::Isolate* isolate = info.GetIsolate();
ScriptState* scriptState = ScriptState::current(isolate);
if (!RuntimeEnabledFeatures::customElementsV1Enabled() ||
!scriptState->world().isMainWorld()) {
V8ThrowException::throwTypeError(info.GetIsolate(), "Illegal constructor");
return;
}
LocalDOMWindow* window = scriptState->domWindow();
ScriptCustomElementDefinition* definition =
ScriptCustomElementDefinition::forConstructor(
scriptState, window->customElements(), info.NewTarget());
if (!definition) {
V8ThrowException::throwTypeError(isolate, "Illegal constructor");
return;
}
ExceptionState exceptionState(ExceptionState::ConstructionContext,
"HTMLElement", info.Holder(), isolate);
Element* element;
if (definition->constructionStack().isEmpty()) {
// This is an element being created with 'new' from script
element = definition->createElementForConstructor(*window->document());
} else {
element = definition->constructionStack().last();
if (element) {
// This is an element being upgraded that has called super
definition->constructionStack().last().clear();
} else {
// During upgrade an element has invoked the same constructor
// before calling 'super' and that invocation has poached the
// element.
exceptionState.throwDOMException(InvalidStateError,
"this instance is already constructed");
return;
}
}
const WrapperTypeInfo* wrapperType = element->wrapperTypeInfo();
v8::Local<v8::Object> wrapper = V8DOMWrapper::associateObjectWithWrapper(
isolate, element, wrapperType, info.Holder());
// If the element had a wrapper, we now update and return that
// instead.
v8SetReturnValue(info, wrapper);
wrapper->SetPrototype(scriptState->context(), definition->prototype())
.ToChecked();
}
// Create a V8 object with an interceptor of NPObjectPropertyGetter.
void ScriptController::bindToWindowObject(LocalFrame* frame, const String& key, NPObject* object)
{
ScriptState* scriptState = ScriptState::forMainWorld(frame);
if (!scriptState->contextIsValid())
return;
ScriptState::Scope scope(scriptState);
v8::Handle<v8::Object> value = createV8ObjectForNPObject(m_isolate, object, 0);
// Attach to the global object.
scriptState->context()->Global()->Set(v8String(m_isolate, key), value);
}
static void messageHandlerInWorker(v8::Local<v8::Message> message, v8::Local<v8::Value> data)
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
V8PerIsolateData* perIsolateData = V8PerIsolateData::from(isolate);
// Exceptions that occur in error handler should be ignored since in that case
// WorkerGlobalScope::reportException will send the exception to the worker object.
if (perIsolateData->isReportingException())
return;
perIsolateData->setReportingException(true);
ScriptState* scriptState = ScriptState::current(isolate);
// During the frame teardown, there may not be a valid context.
if (ExecutionContext* context = scriptState->executionContext()) {
String errorMessage = toCoreStringWithNullCheck(message->Get());
TOSTRING_VOID(V8StringResource<>, sourceURL, message->GetScriptOrigin().ResourceName());
int scriptId = 0;
RefPtrWillBeRawPtr<ScriptCallStack> callStack = extractCallStack(isolate, message, &scriptId);
int lineNumber = 0;
int columnNumber = 0;
if (v8Call(message->GetLineNumber(scriptState->context()), lineNumber)
&& v8Call(message->GetStartColumn(scriptState->context()), columnNumber))
++columnNumber;
RefPtrWillBeRawPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, sourceURL, lineNumber, columnNumber, &DOMWrapperWorld::current(isolate));
AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;
// If execution termination has been triggered as part of constructing
// the error event from the v8::Message, quietly leave.
if (!v8::V8::IsExecutionTerminating(isolate)) {
V8ErrorHandler::storeExceptionOnErrorEventWrapper(isolate, event.get(), data, scriptState->context()->Global());
context->reportException(event.release(), scriptId, callStack, corsStatus);
}
}
perIsolateData->setReportingException(false);
}
void AcceptConnectionObserver::responseWasResolved(const ScriptValue& value)
{
ASSERT(executionContext());
if (!m_resolver) {
// TODO(mek): Get rid of this block when observer is only used for
// service port connect events.
if (!value.v8Value()->IsTrue()) {
responseWasRejected();
return;
}
ServiceWorkerGlobalScopeClient::from(executionContext())->didHandleCrossOriginConnectEvent(m_eventID, true);
m_state = Done;
return;
}
ScriptState* scriptState = m_resolver->scriptState();
ExceptionState exceptionState(ExceptionState::UnknownContext, nullptr, nullptr, scriptState->context()->Global(), scriptState->isolate());
ServicePortConnectResponse response = ScriptValue::to<ServicePortConnectResponse>(scriptState->isolate(), value, exceptionState);
if (exceptionState.hadException()) {
exceptionState.reject(m_resolver.get());
m_resolver = nullptr;
responseWasRejected();
return;
}
if (!response.hasAccept() || !response.accept()) {
responseWasRejected();
return;
}
WebServicePort webPort;
webPort.targetUrl = m_targetURL;
if (response.hasName())
webPort.name = response.name();
if (response.hasData()) {
webPort.data = SerializedScriptValueFactory::instance().create(scriptState->isolate(), response.data(), nullptr, exceptionState)->toWireString();
if (exceptionState.hadException()) {
exceptionState.reject(m_resolver.get());
m_resolver = nullptr;
responseWasRejected();
return;
}
}
webPort.id = m_portID;
ServicePort* port = ServicePort::create(m_collection, webPort);
m_collection->addPort(port);
m_resolver->resolve(port);
m_callbacks->onSuccess(&webPort);
m_state = Done;
}
WebDevToolsFrontendImpl::~WebDevToolsFrontendImpl()
{
if (m_devtoolsHost)
m_devtoolsHost->disconnectClient();
if (!m_devtoolsHost || !m_webFrame)
return;
v8::Isolate* isolate = v8::Isolate::GetCurrent();
ScriptState* scriptState = ScriptState::forMainWorld(m_webFrame->frame());
ScriptState::Scope scope(scriptState);
v8::Local<v8::Object> global = scriptState->context()->Global();
global->Delete(v8AtomicString(isolate, "DevToolsHost"));
m_devtoolsHost = nullptr;
}
bool _NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npObject, NPString* npScript, NPVariant* result)
{
ScriptForbiddenScope::AllowSuperUnsafeScript thisShouldBeRemoved;
VOID_TO_NPVARIANT(*result);
if (!npObject)
return false;
V8NPObject* v8NpObject = npObjectToV8NPObject(npObject);
if (!v8NpObject)
return false;
v8::Isolate* isolate = v8::Isolate::GetCurrent();
ScriptState* scriptState = mainWorldScriptState(isolate, npp, npObject);
if (!scriptState)
return false;
ScriptState::Scope scope(scriptState);
ExceptionCatcher exceptionCatcher;
// FIXME: Is this branch still needed after switching to using UserGestureIndicator?
String filename;
if (!popupsAllowed)
filename = "npscript";
LocalFrame* frame = v8NpObject->rootObject->frame();
ASSERT(frame);
String script = String::fromUTF8(npScript->UTF8Characters, npScript->UTF8Length);
UserGestureIndicator gestureIndicator(popupsAllowed ? DefinitelyProcessingNewUserGesture : PossiblyProcessingUserGesture);
v8::Local<v8::Value> v8result = frame->script().executeScriptAndReturnValue(scriptState->context(), ScriptSourceCode(script, KURL(ParsedURLString, filename)));
if (v8result.IsEmpty())
return false;
if (_NPN_IsAlive(npObject))
convertV8ObjectToNPVariant(v8result, npObject, result, isolate);
return true;
}
ScriptObject InjectedScriptManager::injectWebGLScript(const String& scriptSource, const ScriptObject& glContext)
{
v8::HandleScope scope;
ScriptState* inspectedScriptState = glContext.scriptState();
v8::Local<v8::Context> inspectedContext = inspectedScriptState->context();
v8::Context::Scope contextScope(inspectedContext);
v8::Local<v8::Object> windowGlobal = inspectedContext->Global();
v8::Local<v8::Script> script = v8::Script::Compile(v8String(scriptSource));
V8RecursionScope::MicrotaskSuppression recursionScope;
v8::Local<v8::Value> v = script->Run();
ASSERT(!v.IsEmpty());
ASSERT(v->IsFunction());
v8::Handle<v8::Value> args[] = {
glContext.v8Value(),
};
v8::Local<v8::Value> injectedScriptValue = v8::Function::Cast(*v)->Call(windowGlobal, 1, args);
return ScriptObject(inspectedScriptState, v8::Handle<v8::Object>::Cast(injectedScriptValue));
}
void V8LazyEventListener::prepareListenerObject(ExecutionContext* executionContext)
{
if (!executionContext)
return;
// A ScriptState used by the event listener needs to be calculated based on
// the ExecutionContext that fired the the event listener and the world
// that installed the event listener.
v8::HandleScope handleScope(toIsolate(executionContext));
v8::Local<v8::Context> v8Context = toV8Context(executionContext, world());
if (v8Context.IsEmpty())
return;
ScriptState* scriptState = ScriptState::from(v8Context);
if (!scriptState->contextIsValid())
return;
if (!executionContext->isDocument())
return;
if (!toDocument(executionContext)->allowInlineEventHandlers(m_node, this, m_sourceURL, m_position.m_line)) {
clearListenerObject();
return;
}
if (hasExistingListenerObject())
return;
ScriptState::Scope scope(scriptState);
// FIXME: Remove the following 'with' hack.
//
// Nodes other than the document object, when executing inline event
// handlers push document, form owner, and the target node on the scope chain.
// We do this by using 'with' statement.
// See chrome/fast/forms/form-action.html
// chrome/fast/forms/selected-index-value.html
// base/fast/overflow/onscroll-layer-self-destruct.html
//
// Don't use new lines so that lines in the modified handler
// have the same numbers as in the original code.
// FIXME: V8 does not allow us to programmatically create object environments so
// we have to do this hack! What if m_code escapes to run arbitrary script?
//
// Call with 4 arguments instead of 3, pass additional null as the last parameter.
// By calling the function with 4 arguments, we create a setter on arguments object
// which would shadow property "3" on the prototype.
String code = "(function() {"
"with (this[2]) {"
"with (this[1]) {"
"with (this[0]) {"
"return function(" + m_eventParameterName + ") {" +
m_code + "\n" // Insert '\n' otherwise //-style comments could break the handler.
"};"
"}}}})";
v8::Local<v8::String> codeExternalString = v8String(isolate(), code);
v8::Local<v8::Value> result;
if (!V8ScriptRunner::compileAndRunInternalScript(codeExternalString, isolate(), m_sourceURL, m_position).ToLocal(&result))
return;
// Call the outer function to get the inner function.
if (!result->IsFunction())
return;
v8::Local<v8::Function> intermediateFunction = result.As<v8::Function>();
HTMLFormElement* formElement = 0;
if (m_node && m_node->isHTMLElement())
formElement = toHTMLElement(m_node)->formOwner();
v8::Local<v8::Object> nodeWrapper = toObjectWrapper<Node>(m_node, scriptState);
v8::Local<v8::Object> formWrapper = toObjectWrapper<HTMLFormElement>(formElement, scriptState);
v8::Local<v8::Object> documentWrapper = toObjectWrapper<Document>(m_node ? m_node->ownerDocument() : 0, scriptState);
v8::Local<v8::Object> thisObject = v8::Object::New(isolate());
if (thisObject.IsEmpty())
return;
if (!v8CallBoolean(thisObject->ForceSet(scriptState->context(), v8::Integer::New(isolate(), 0), nodeWrapper)))
return;
if (!v8CallBoolean(thisObject->ForceSet(scriptState->context(), v8::Integer::New(isolate(), 1), formWrapper)))
return;
if (!v8CallBoolean(thisObject->ForceSet(scriptState->context(), v8::Integer::New(isolate(), 2), documentWrapper)))
return;
// FIXME: Remove this code when we stop doing the 'with' hack above.
v8::Local<v8::Value> innerValue;
if (!V8ScriptRunner::callInternalFunction(intermediateFunction, thisObject, 0, 0, isolate()).ToLocal(&innerValue) || !innerValue->IsFunction())
return;
v8::Local<v8::Function> wrappedFunction = innerValue.As<v8::Function>();
// Change the toString function on the wrapper function to avoid it
// returning the source for the actual wrapper function. Instead it
// returns source for a clean wrapper function with the event
// argument wrapping the event source code. The reason for this is
// that some web sites use toString on event functions and eval the
// source returned (sometimes a RegExp is applied as well) for some
// other use. That fails miserably if the actual wrapper source is
// returned.
v8::Local<v8::Function> toStringFunction = v8::Function::New(isolate(), V8LazyEventListenerToString);
if (toStringFunction.IsEmpty())
return;
String toStringString = "function " + m_functionName + "(" + m_eventParameterName + ") {\n " + m_code + "\n}";
V8HiddenValue::setHiddenValue(isolate(), wrappedFunction, V8HiddenValue::toStringString(isolate()), v8String(isolate(), toStringString));
if (!v8CallBoolean(wrappedFunction->Set(scriptState->context(), v8AtomicString(isolate(), "toString"), toStringFunction)))
return;
wrappedFunction->SetName(v8String(isolate(), m_functionName));
// FIXME: Remove the following comment-outs.
// See https://bugs.webkit.org/show_bug.cgi?id=85152 for more details.
//
// For the time being, we comment out the following code since the
// second parsing can happen.
// // Since we only parse once, there's no need to keep data used for parsing around anymore.
// m_functionName = String();
// m_code = String();
// m_eventParameterName = String();
// m_sourceURL = String();
setListenerObject(wrappedFunction);
}
// https://html.spec.whatwg.org/multipage/dom.html#html-element-constructors
void V8HTMLConstructor::htmlConstructor(
const v8::FunctionCallbackInfo<v8::Value>& info,
const WrapperTypeInfo& wrapperTypeInfo,
const HTMLElementType elementInterfaceName) {
TRACE_EVENT0("blink", "HTMLConstructor");
DCHECK(info.IsConstructCall());
v8::Isolate* isolate = info.GetIsolate();
ScriptState* scriptState = ScriptState::current(isolate);
v8::Local<v8::Value> newTarget = info.NewTarget();
if (!scriptState->contextIsValid()) {
V8ThrowException::throwError(isolate, "The context has been destroyed");
return;
}
if (!RuntimeEnabledFeatures::customElementsV1Enabled() ||
!scriptState->world().isMainWorld()) {
V8ThrowException::throwTypeError(isolate, "Illegal constructor");
return;
}
// 2. If NewTarget is equal to the active function object, then
// throw a TypeError and abort these steps.
v8::Local<v8::Function> activeFunctionObject =
scriptState->perContextData()->constructorForType(
&V8HTMLElement::wrapperTypeInfo);
if (newTarget == activeFunctionObject) {
V8ThrowException::throwTypeError(isolate, "Illegal constructor");
return;
}
LocalDOMWindow* window = scriptState->domWindow();
CustomElementRegistry* registry = window->customElements();
// 3. Let definition be the entry in registry with constructor equal to
// NewTarget.
// If there is no such definition, then throw a TypeError and abort these
// steps.
ScriptCustomElementDefinition* definition =
ScriptCustomElementDefinition::forConstructor(scriptState, registry,
newTarget);
if (!definition) {
V8ThrowException::throwTypeError(isolate, "Illegal constructor");
return;
}
const AtomicString& localName = definition->descriptor().localName();
const AtomicString& name = definition->descriptor().name();
if (localName == name) {
// Autonomous custom element
// 4.1. If the active function object is not HTMLElement, then throw a
// TypeError
if (!V8HTMLElement::wrapperTypeInfo.equals(&wrapperTypeInfo)) {
V8ThrowException::throwTypeError(isolate,
"Illegal constructor: autonomous custom "
"elements must extend HTMLElement");
return;
}
} else {
// Customized built-in element
// 5. If local name is not valid for interface, throw TypeError
if (htmlElementTypeForTag(localName) != elementInterfaceName) {
V8ThrowException::throwTypeError(isolate,
"Illegal constructor: localName does "
"not match the HTML element interface");
return;
}
}
ExceptionState exceptionState(isolate, ExceptionState::ConstructionContext,
"HTMLElement");
v8::TryCatch tryCatch(isolate);
// 6. Let prototype be Get(NewTarget, "prototype"). Rethrow any exceptions.
v8::Local<v8::Value> prototype;
v8::Local<v8::String> prototypeString = v8AtomicString(isolate, "prototype");
if (!v8Call(newTarget.As<v8::Object>()->Get(scriptState->context(),
prototypeString),
prototype)) {
return;
}
// 7. If Type(prototype) is not Object, then: ...
if (!prototype->IsObject()) {
if (V8PerContextData* perContextData = V8PerContextData::from(
newTarget.As<v8::Object>()->CreationContext())) {
prototype =
perContextData->prototypeForType(&V8HTMLElement::wrapperTypeInfo);
} else {
V8ThrowException::throwError(isolate, "The context has been destroyed");
return;
}
}
// 8. If definition's construction stack is empty...
Element* element;
if (definition->constructionStack().isEmpty()) {
// This is an element being created with 'new' from script
element = definition->createElementForConstructor(*window->document());
} else {
element = definition->constructionStack().last();
if (element) {
// This is an element being upgraded that has called super
definition->constructionStack().last().clear();
} else {
// During upgrade an element has invoked the same constructor
// before calling 'super' and that invocation has poached the
// element.
exceptionState.throwDOMException(InvalidStateError,
"this instance is already constructed");
return;
}
}
const WrapperTypeInfo* wrapperType = element->wrapperTypeInfo();
v8::Local<v8::Object> wrapper = V8DOMWrapper::associateObjectWithWrapper(
isolate, element, wrapperType, info.Holder());
// If the element had a wrapper, we now update and return that
// instead.
v8SetReturnValue(info, wrapper);
// 11. Perform element.[[SetPrototypeOf]](prototype). Rethrow any exceptions.
// Note: I don't think this prototype set *can* throw exceptions.
wrapper->SetPrototype(scriptState->context(), prototype.As<v8::Object>())
.ToChecked();
}
v8::Local<v8::Context> MainThreadDebugger::ensureDefaultContextInGroup(
int contextGroupId) {
LocalFrame* frame = WeakIdentifierMap<LocalFrame>::lookup(contextGroupId);
ScriptState* scriptState = frame ? ScriptState::forMainWorld(frame) : nullptr;
return scriptState ? scriptState->context() : v8::Local<v8::Context>();
}
Page* InspectorOverlay::overlayPage() {
if (m_overlayPage)
return m_overlayPage.get();
ScriptForbiddenScope::AllowUserAgentScript allowScript;
DEFINE_STATIC_LOCAL(FrameLoaderClient, dummyFrameLoaderClient,
(EmptyFrameLoaderClient::create()));
Page::PageClients pageClients;
fillWithEmptyClients(pageClients);
DCHECK(!m_overlayChromeClient);
m_overlayChromeClient = InspectorOverlayChromeClient::create(
m_frameImpl->frame()->host()->chromeClient(), *this);
pageClients.chromeClient = m_overlayChromeClient.get();
m_overlayPage = Page::create(pageClients);
Settings& settings = m_frameImpl->frame()->host()->settings();
Settings& overlaySettings = m_overlayPage->settings();
overlaySettings.genericFontFamilySettings().updateStandard(
settings.genericFontFamilySettings().standard());
overlaySettings.genericFontFamilySettings().updateSerif(
settings.genericFontFamilySettings().serif());
overlaySettings.genericFontFamilySettings().updateSansSerif(
settings.genericFontFamilySettings().sansSerif());
overlaySettings.genericFontFamilySettings().updateCursive(
settings.genericFontFamilySettings().cursive());
overlaySettings.genericFontFamilySettings().updateFantasy(
settings.genericFontFamilySettings().fantasy());
overlaySettings.genericFontFamilySettings().updatePictograph(
settings.genericFontFamilySettings().pictograph());
overlaySettings.setMinimumFontSize(settings.minimumFontSize());
overlaySettings.setMinimumLogicalFontSize(settings.minimumLogicalFontSize());
overlaySettings.setScriptEnabled(true);
overlaySettings.setPluginsEnabled(false);
overlaySettings.setLoadsImagesAutomatically(true);
// FIXME: http://crbug.com/363843. Inspector should probably create its
// own graphics layers and attach them to the tree rather than going
// through some non-composited paint function.
overlaySettings.setAcceleratedCompositingEnabled(false);
LocalFrame* frame = LocalFrame::create(&dummyFrameLoaderClient,
&m_overlayPage->frameHost(), 0);
frame->setView(FrameView::create(*frame));
frame->init();
FrameLoader& loader = frame->loader();
frame->view()->setCanHaveScrollbars(false);
frame->view()->setTransparent(true);
const WebData& overlayPageHTMLResource =
Platform::current()->loadResource("InspectorOverlayPage.html");
RefPtr<SharedBuffer> data = SharedBuffer::create(
overlayPageHTMLResource.data(), overlayPageHTMLResource.size());
loader.load(FrameLoadRequest(
0, blankURL(), SubstituteData(data, "text/html", "UTF-8", KURL(),
ForceSynchronousLoad)));
v8::Isolate* isolate = toIsolate(frame);
ScriptState* scriptState = ScriptState::forMainWorld(frame);
DCHECK(scriptState);
ScriptState::Scope scope(scriptState);
v8::Local<v8::Object> global = scriptState->context()->Global();
v8::Local<v8::Value> overlayHostObj =
toV8(m_overlayHost.get(), global, isolate);
DCHECK(!overlayHostObj.IsEmpty());
global
->Set(scriptState->context(),
v8AtomicString(isolate, "InspectorOverlayHost"), overlayHostObj)
.ToChecked();
#if OS(WIN)
evaluateInOverlay("setPlatform", "windows");
#elif OS(MACOSX)
evaluateInOverlay("setPlatform", "mac");
#elif OS(POSIX)
evaluateInOverlay("setPlatform", "linux");
#endif
return m_overlayPage.get();
}
void V8LazyEventListener::prepareListenerObject(ExecutionContext* executionContext)
{
if (!executionContext)
return;
// A ScriptState used by the event listener needs to be calculated based on
// the ExecutionContext that fired the the event listener and the world
// that installed the event listener.
v8::HandleScope handleScope(toIsolate(executionContext));
v8::Local<v8::Context> v8Context = toV8Context(executionContext, world());
if (v8Context.IsEmpty())
return;
ScriptState* scriptState = ScriptState::from(v8Context);
if (!scriptState->contextIsValid())
return;
if (!executionContext->isDocument())
return;
if (!toDocument(executionContext)->allowInlineEventHandlers(m_node, this, m_sourceURL, m_position.m_line)) {
clearListenerObject();
return;
}
if (hasExistingListenerObject())
return;
ScriptState::Scope scope(scriptState);
// Nodes other than the document object, when executing inline event
// handlers push document, form owner, and the target node on the scope chain.
// We do this by using 'with' statement.
// See fast/forms/form-action.html
// fast/forms/selected-index-value.html
// fast/overflow/onscroll-layer-self-destruct.html
HTMLFormElement* formElement = 0;
if (m_node && m_node->isHTMLElement())
formElement = toHTMLElement(m_node)->formOwner();
v8::Local<v8::Object> scopes[3];
scopes[2] = toObjectWrapper<Node>(m_node, scriptState);
scopes[1] = toObjectWrapper<HTMLFormElement>(formElement, scriptState);
scopes[0] = toObjectWrapper<Document>(m_node ? m_node->ownerDocument() : 0, scriptState);
v8::Local<v8::String> parameterName = v8String(isolate(), m_eventParameterName);
v8::ScriptOrigin origin(
v8String(isolate(), m_sourceURL),
v8::Integer::New(isolate(), m_position.m_line.zeroBasedInt()),
v8::Integer::New(isolate(), m_position.m_column.zeroBasedInt()),
v8::True(isolate()),
v8::Local<v8::Integer>(),
v8::True(isolate()));
v8::ScriptCompiler::Source source(v8String(isolate(), m_code), origin);
v8::Local<v8::Function> wrappedFunction;
{
// JavaScript compilation error shouldn't be reported as a runtime
// exception because we're not running any program code. Instead,
// it should be reported as an ErrorEvent.
v8::TryCatch block(isolate());
wrappedFunction = v8::ScriptCompiler::CompileFunctionInContext(isolate(), &source, v8Context, 1, ¶meterName, 3, scopes);
if (block.HasCaught()) {
fireErrorEvent(v8Context, executionContext, block.Message());
return;
}
}
// Change the toString function on the wrapper function to avoid it
// returning the source for the actual wrapper function. Instead it
// returns source for a clean wrapper function with the event
// argument wrapping the event source code. The reason for this is
// that some web sites use toString on event functions and eval the
// source returned (sometimes a RegExp is applied as well) for some
// other use. That fails miserably if the actual wrapper source is
// returned.
v8::Local<v8::Function> toStringFunction = v8::Function::New(isolate(), V8LazyEventListenerToString);
if (toStringFunction.IsEmpty())
return;
String toStringString = "function " + m_functionName + "(" + m_eventParameterName + ") {\n " + m_code + "\n}";
V8HiddenValue::setHiddenValue(scriptState, wrappedFunction, V8HiddenValue::toStringString(isolate()), v8String(isolate(), toStringString));
if (!v8CallBoolean(wrappedFunction->Set(scriptState->context(), v8AtomicString(isolate(), "toString"), toStringFunction)))
return;
wrappedFunction->SetName(v8String(isolate(), m_functionName));
// FIXME: Remove the following comment-outs.
// See https://bugs.webkit.org/show_bug.cgi?id=85152 for more details.
//
// For the time being, we comment out the following code since the
// second parsing can happen.
// // Since we only parse once, there's no need to keep data used for parsing around anymore.
// m_functionName = String();
// m_code = String();
// m_eventParameterName = String();
// m_sourceURL = String();
setListenerObject(wrappedFunction, scriptState);
}
void WebDevToolsFrontendImpl::windowObjectCleared()
{
v8::Isolate* isolate = v8::Isolate::GetCurrent();
Page* page = m_webViewImpl->page();
ASSERT(page->mainFrame());
ScriptState* scriptState = ScriptState::forMainWorld(page->deprecatedLocalMainFrame());
ScriptState::Scope scope(scriptState);
if (m_frontendHost)
m_frontendHost->disconnectClient();
m_frontendHost = InspectorFrontendHost::create(this, page);
v8::Handle<v8::Object> global = scriptState->context()->Global();
v8::Handle<v8::Value> frontendHostObj = toV8(m_frontendHost.get(), global, scriptState->isolate());
global->Set(v8::String::NewFromUtf8(isolate, "InspectorFrontendHost"), frontendHostObj);
ScriptController* scriptController = page->mainFrame() ? &page->deprecatedLocalMainFrame()->script() : 0;
if (scriptController) {
String installAdditionalAPI =
"" // Wrap messages that go to embedder.
"(function(host, methodEntries) {"
" host._lastCallId = 0;"
" host._callbacks = [];"
" host.embedderMessageAck = function(id, error)"
" {"
" var callback = host._callbacks[id];"
" delete host._callbacks[id];"
" if (callback)"
" callback(error);"
" };"
" function dispatch(methodName, argumentCount)"
" {"
" var callId = ++host._lastCallId;"
" var argsArray = Array.prototype.slice.call(arguments, 2);"
" var callback = argsArray[argsArray.length - 1];"
" if (typeof callback === \"function\") {"
" argsArray.pop();"
" host._callbacks[callId] = callback;"
" }"
" var message = { \"id\": callId, \"method\": methodName };"
" argsArray = argsArray.slice(0, argumentCount);"
" if (argsArray.length)"
" message.params = argsArray;"
" host.sendMessageToEmbedder(JSON.stringify(message));"
" };"
" methodEntries.forEach(function(methodEntry) { host[methodEntry[0]] = dispatch.bind(null, methodEntry[0], methodEntry[1]); });"
"})(InspectorFrontendHost,"
" [['addFileSystem', 0],"
" ['append', 2],"
" ['bringToFront', 0],"
" ['closeWindow', 0],"
" ['indexPath', 2],"
" ['inspectElementCompleted', 0],"
" ['inspectedURLChanged', 1],"
" ['moveWindowBy', 2],"
" ['openInNewTab', 1],"
" ['openUrlOnRemoteDeviceAndInspect', 2],"
" ['removeFileSystem', 1],"
" ['requestFileSystems', 0],"
" ['resetZoom', 0],"
" ['save', 3],"
" ['searchInPath', 3],"
" ['setDeviceCountUpdatesEnabled', 1],"
" ['setDevicesUpdatesEnabled', 1],"
" ['setWhitelistedShortcuts', 1],"
" ['setContentsResizingStrategy', 2],"
" ['setInspectedPageBounds', 1],"
" ['setIsDocked', 1],"
" ['stopIndexing', 1],"
" ['zoomIn', 0],"
" ['zoomOut', 0]]);"
""
"" // Support for legacy front-ends (<M34). Do not add items here.
"InspectorFrontendHost.requestSetDockSide = function(dockSide)"
"{"
" InspectorFrontendHost.setIsDocked(dockSide !== \"undocked\");"
"};"
"InspectorFrontendHost.supportsFileSystems = function() { return true; };"
""
"" // Support for legacy front-ends (<M28). Do not add items here.
"InspectorFrontendHost.canInspectWorkers = function() { return true; };"
"InspectorFrontendHost.canSaveAs = function() { return true; };"
"InspectorFrontendHost.canSave = function() { return true; };"
"InspectorFrontendHost.loaded = function() {};"
"InspectorFrontendHost.hiddenPanels = function() { return ""; };"
"InspectorFrontendHost.localizedStringsURL = function() { return ""; };"
"InspectorFrontendHost.close = function(url) { };";
scriptController->executeScriptInMainWorld(installAdditionalAPI, ScriptController::ExecuteScriptWhenScriptsDisabled);
}
}