bool VoidCallbackFunctionInterfaceArg::call(ScriptWrappable* scriptWrappable, HTMLDivElement* divElement) {
if (!m_scriptState->contextIsValid())
return false;
ExecutionContext* context = m_scriptState->getExecutionContext();
DCHECK(context);
if (context->activeDOMObjectsAreSuspended() || context->isContextDestroyed())
return false;
if (m_callback.isEmpty())
return false;
// TODO(bashi): Make sure that using DummyExceptionStateForTesting is OK.
// crbug.com/653769
DummyExceptionStateForTesting exceptionState;
ScriptState::Scope scope(m_scriptState.get());
v8::Local<v8::Value> divElementArgument = toV8(divElement, m_scriptState->context()->Global(), m_scriptState->isolate());
v8::Local<v8::Value> thisValue = toV8(scriptWrappable, m_scriptState->context()->Global(), m_scriptState->isolate());
v8::Local<v8::Value> argv[] = { divElementArgument };
v8::Local<v8::Value> v8ReturnValue;
v8::TryCatch exceptionCatcher(m_scriptState->isolate());
exceptionCatcher.SetVerbose(true);
if (V8ScriptRunner::callFunction(m_callback.newLocal(m_scriptState->isolate()), m_scriptState->getExecutionContext(), thisValue, 1, argv, m_scriptState->isolate()).ToLocal(&v8ReturnValue)) {
return true;
}
return false;
}
void SuspendableScriptExecutor::run()
{
suspendIfNeeded();
ExecutionContext* context = executionContext();
ASSERT(context);
if (context && !context->activeDOMObjectsAreSuspended())
executeAndDestroySelf();
}
void SuspendableScriptExecutor::run()
{
ExecutionContext* context = getExecutionContext();
DCHECK(context);
if (!context->activeDOMObjectsAreSuspended()) {
suspendIfNeeded();
executeAndDestroySelf();
return;
}
startOneShot(0, BLINK_FROM_HERE);
suspendIfNeeded();
}
void IntersectionObserverController::deliverIntersectionObservations() {
ExecutionContext* context = getExecutionContext();
if (!context) {
m_pendingIntersectionObservers.clear();
return;
}
if (context->activeDOMObjectsAreSuspended()) {
m_callbackFiredWhileSuspended = true;
return;
}
HeapHashSet<Member<IntersectionObserver>> observers;
m_pendingIntersectionObservers.swap(observers);
for (auto& observer : observers)
observer->deliver();
}
void DOMTimer::fired()
{
ExecutionContext* context = getExecutionContext();
ASSERT(context);
context->timers()->setTimerNestingLevel(m_nestingLevel);
ASSERT(!context->activeDOMObjectsAreSuspended());
// Only the first execution of a multi-shot timer should get an affirmative user gesture indicator.
UserGestureIndicator gestureIndicator(m_userGestureToken.release());
TRACE_EVENT1("devtools.timeline", "TimerFire", "data", InspectorTimerFireEvent::data(context, m_timeoutID));
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willFireTimer(context, m_timeoutID);
// Simple case for non-one-shot timers.
if (isActive()) {
if (repeatInterval() && repeatInterval() < minimumInterval) {
m_nestingLevel++;
if (m_nestingLevel >= maxTimerNestingLevel)
augmentRepeatInterval(minimumInterval - repeatInterval());
}
// No access to member variables after this point, it can delete the timer.
m_action->execute(context);
InspectorInstrumentation::didFireTimer(cookie);
return;
}
RawPtr<DOMTimer> protect(this);
// Unregister the timer from ExecutionContext before executing the action
// for one-shot timers.
RawPtr<ScheduledAction> action = m_action.release();
context->timers()->removeTimeoutByID(m_timeoutID);
action->execute(context);
InspectorInstrumentation::didFireTimer(cookie);
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "UpdateCounters", TRACE_EVENT_SCOPE_THREAD, "data", InspectorUpdateCountersEvent::data());
// ExecutionContext might be already gone when we executed action->execute().
if (getExecutionContext())
getExecutionContext()->timers()->setTimerNestingLevel(0);
}
void DOMTimer::fired()
{
ExecutionContext* context = executionContext();
timerNestingLevel = m_nestingLevel;
ASSERT(!context->activeDOMObjectsAreSuspended());
// Only the first execution of a multi-shot timer should get an affirmative user gesture indicator.
UserGestureIndicator gestureIndicator(m_userGestureToken.release());
TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "TimerFire", "data", InspectorTimerFireEvent::data(context, m_timeoutID));
// FIXME(361045): remove InspectorInstrumentation calls once DevTools Timeline migrates to tracing.
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willFireTimer(context, m_timeoutID);
// Simple case for non-one-shot timers.
if (isActive()) {
if (repeatInterval() && repeatInterval() < minimumInterval) {
m_nestingLevel++;
if (m_nestingLevel >= maxTimerNestingLevel)
augmentRepeatInterval(minimumInterval - repeatInterval());
}
// No access to member variables after this point, it can delete the timer.
m_action->execute(context);
InspectorInstrumentation::didFireTimer(cookie);
return;
}
// Delete timer before executing the action for one-shot timers.
OwnPtr<ScheduledAction> action = m_action.release();
// This timer is being deleted; no access to member variables allowed after this point.
context->removeTimeoutByID(m_timeoutID);
action->execute(context);
InspectorInstrumentation::didFireTimer(cookie);
TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "UpdateCounters", "data", InspectorUpdateCountersEvent::data());
timerNestingLevel = 0;
}
void DOMTimer::fired()
{
ExecutionContext* context = executionContext();
timerNestingLevel = m_nestingLevel;
ASSERT(!context->activeDOMObjectsAreSuspended());
// Only the first execution of a multi-shot timer should get an affirmative user gesture indicator.
UserGestureIndicator gestureIndicator(m_userGestureToken.release());
InspectorInstrumentationCookie cookie = InspectorInstrumentation::willFireTimer(context, m_timeoutID);
// Simple case for non-one-shot timers.
if (isActive()) {
if (repeatInterval() && repeatInterval() < minimumInterval) {
m_nestingLevel++;
if (m_nestingLevel >= maxTimerNestingLevel)
augmentRepeatInterval(minimumInterval - repeatInterval());
}
// No access to member variables after this point, it can delete the timer.
m_action->execute(context);
InspectorInstrumentation::didFireTimer(cookie);
return;
}
// Delete timer before executing the action for one-shot timers.
OwnPtr<ScheduledAction> action = m_action.release();
// This timer is being deleted; no access to member variables allowed after this point.
context->removeTimeoutByID(m_timeoutID);
action->execute(context);
InspectorInstrumentation::didFireTimer(cookie);
timerNestingLevel = 0;
}
bool StringSequenceCallbackFunctionLongSequenceArg::call(ScriptState* scriptState, ScriptWrappable* scriptWrappable, const Vector<int>& arg, Vector<String>& returnValue)
{
if (!scriptState->contextIsValid())
return false;
ExecutionContext* context = scriptState->getExecutionContext();
DCHECK(context);
if (context->activeDOMObjectsAreSuspended() || context->activeDOMObjectsAreStopped())
return false;
if (m_callback.isEmpty())
return false;
// TODO(bashi): Make sure that using TrackExceptionState is OK.
// crbug.com/653769
TrackExceptionState exceptionState;
ScriptState::Scope scope(scriptState);
v8::Local<v8::Value> argArgument = toV8(arg, scriptState->context()->Global(), scriptState->isolate());
v8::Local<v8::Value> thisValue = toV8(scriptWrappable, scriptState->context()->Global(), scriptState->isolate());
v8::Local<v8::Value> argv[] = { argArgument };
v8::Local<v8::Value> v8ReturnValue;
v8::TryCatch exceptionCatcher(scriptState->isolate());
exceptionCatcher.SetVerbose(true);
if (V8ScriptRunner::callFunction(m_callback.newLocal(scriptState->isolate()), scriptState->getExecutionContext(), thisValue, 1, argv, scriptState->isolate()).ToLocal(&v8ReturnValue))
{
Vector<String> cppValue = toImplArray<Vector<String>>(v8ReturnValue, 0, scriptState->isolate(), exceptionState);
if (exceptionState.hadException())
return false;
returnValue = cppValue;
return true;
}
return false;
}
bool ActiveDOMCallback::canInvokeCallback() const
{
ExecutionContext* context = executionContext();
return context && !context->activeDOMObjectsAreSuspended() && !context->activeDOMObjectsAreStopped();
}