LayoutNodeInstance::Pointer LayoutNodeInstance::create(QObject *object)
{
QQuickItem *item = qobject_cast<QQuickItem*>(object);
Q_ASSERT(item);
Pointer instance(new LayoutNodeInstance(item));
instance->setHasContent(anyItemHasContent(item));
item->setFlag(QQuickItem::ItemHasContents, true);
static_cast<QQmlParserStatus*>(item)->classBegin();
instance->populateResetHashes();
return instance;
}
void OffscreenSurface::finishQmlLoad(QQmlComponent* qmlComponent,
QQmlContext* qmlContext,
QQuickItem* parent,
const QmlContextObjectCallback& callback) {
disconnect(qmlComponent, &QQmlComponent::statusChanged, this, 0);
if (qmlComponent->isError()) {
for (const auto& error : qmlComponent->errors()) {
qCWarning(qmlLogging) << error.url() << error.line() << error;
}
qmlComponent->deleteLater();
return;
}
QObject* newObject = qmlComponent->beginCreate(qmlContext);
if (qmlComponent->isError()) {
for (const auto& error : qmlComponent->errors()) {
qCWarning(qmlLogging) << error.url() << error.line() << error;
}
if (!getRootItem()) {
qFatal("Unable to finish loading QML root");
}
qmlComponent->deleteLater();
return;
}
if (!newObject) {
if (!getRootItem()) {
qFatal("Could not load object as root item");
return;
}
qCWarning(qmlLogging) << "Unable to load QML item";
return;
}
qmlContext->engine()->setObjectOwnership(this, QQmlEngine::CppOwnership);
// All quick items should be focusable
QQuickItem* newItem = qobject_cast<QQuickItem*>(newObject);
if (newItem) {
// Make sure we make items focusable (critical for
// supporting keyboard shortcuts)
newItem->setFlag(QQuickItem::ItemIsFocusScope, true);
#ifdef DEBUG
for (auto frame : newObject->findChildren<QQuickItem *>("Frame")) {
frame->setProperty("qmlFile", qmlComponent->url());
}
#endif
}
bool rootCreated = getRootItem() != nullptr;
// Make sure we will call callback for this codepath
// Call this before qmlComponent->completeCreate() otherwise ghost window appears
// If we already have a root, just set a couple of flags and the ancestry
if (rootCreated) {
callback(qmlContext, newItem);
if (!parent) {
parent = getRootItem();
}
// Allow child windows to be destroyed from JS
QQmlEngine::setObjectOwnership(newObject, QQmlEngine::JavaScriptOwnership);
newObject->setParent(parent);
newItem->setParentItem(parent);
} else {
// The root item is ready. Associate it with the window.
_sharedObject->setRootItem(newItem);
}
qmlComponent->completeCreate();
qmlComponent->deleteLater();
onItemCreated(qmlContext, newItem);
if (!rootCreated) {
connect(newItem, SIGNAL(sendToScript(QVariant)), this, SIGNAL(fromQml(QVariant)));
onRootCreated();
emit rootItemCreated(newItem);
// Call this callback after rootitem is set, otherwise VrMenu wont work
callback(qmlContext, newItem);
}
}