QV4::ReturnedValue QQmlJavaScriptExpression::qmlBinding(QQmlContextData *ctxt, QObject *qmlScope,
const QString &code, const QString &filename, quint16 line,
QV4::PersistentValue *qmlscope)
{
QQmlEngine *engine = ctxt->engine;
QQmlEnginePrivate *ep = QQmlEnginePrivate::get(engine);
QV4::ExecutionEngine *v4 = QV8Engine::getV4(ep->v8engine());
QV4::ExecutionContext *ctx = v4->currentContext();
QV4::Scope scope(v4);
QV4::ScopedObject qmlScopeObject(scope, QV4::QmlContextWrapper::qmlScope(ep->v8engine(), ctxt, qmlScope));
QV4::Script script(v4, qmlScopeObject, code, filename, line);
QV4::ScopedValue result(scope);
script.parse();
if (!v4->hasException)
result = script.qmlBinding();
if (v4->hasException) {
QQmlError error = QV4::ExecutionEngine::catchExceptionAsQmlError(ctx);
if (error.description().isEmpty())
error.setDescription(QLatin1String("Exception occurred during function evaluation"));
if (error.line() == -1)
error.setLine(line);
if (error.url().isEmpty())
error.setUrl(QUrl::fromLocalFile(filename));
error.setObject(qmlScope);
ep->warning(error);
return QV4::Encode::undefined();
}
if (qmlscope)
*qmlscope = qmlScopeObject;
return result.asReturnedValue();
}
void QQuickWindowQmlImpl::setWindowVisibility()
{
Q_D(QQuickWindowQmlImpl);
if (transientParent() && !transientParent()->isVisible())
return;
if (sender()) {
disconnect(transientParent(), &QWindow::visibleChanged, this,
&QQuickWindowQmlImpl::setWindowVisibility);
}
// We have deferred window creation until we have the full picture of what
// the user wanted in terms of window state, geometry, visibility, etc.
if ((d->visibility == Hidden && d->visible) || (d->visibility > AutomaticVisibility && !d->visible)) {
QQmlData *data = QQmlData::get(this);
Q_ASSERT(data && data->context);
QQmlError error;
error.setObject(this);
const QQmlContextData* urlContext = data->context;
while (urlContext && urlContext->url().isEmpty())
urlContext = urlContext->parent;
error.setUrl(urlContext ? urlContext->url() : QUrl());
QString objectId = data->context->findObjectId(this);
if (!objectId.isEmpty())
error.setDescription(QCoreApplication::translate("QQuickWindowQmlImpl",
"Conflicting properties 'visible' and 'visibility' for Window '%1'").arg(objectId));
else
error.setDescription(QCoreApplication::translate("QQuickWindowQmlImpl",
"Conflicting properties 'visible' and 'visibility'"));
QQmlEnginePrivate::get(data->context->engine)->warning(error);
}
if (d->visibility == AutomaticVisibility) {
setWindowState(QGuiApplicationPrivate::platformIntegration()->defaultWindowState(flags()));
setVisible(d->visible);
} else {
setVisibility(d->visibility);
}
}