diff options
Diffstat (limited to 'src/quick/items/qquickvisualdatamodel.cpp')
| -rw-r--r-- | src/quick/items/qquickvisualdatamodel.cpp | 41 |
1 files changed, 39 insertions, 2 deletions
diff --git a/src/quick/items/qquickvisualdatamodel.cpp b/src/quick/items/qquickvisualdatamodel.cpp index 07ad3660be..70f8897b2d 100644 --- a/src/quick/items/qquickvisualdatamodel.cpp +++ b/src/quick/items/qquickvisualdatamodel.cpp @@ -450,6 +450,41 @@ QQuickVisualDataModel::ReleaseFlags QQuickVisualDataModel::release(QQuickItem *i return stat; } +// Cancel a requested async item +void QQuickVisualDataModel::cancel(int index) +{ + Q_D(QQuickVisualDataModel); + if (!d->m_delegate || index < 0 || index >= d->m_compositor.count(d->m_compositorGroup)) { + qWarning() << "VisualDataModel::cancel: index out range" << index << d->m_compositor.count(d->m_compositorGroup); + return; + } + + Compositor::iterator it = d->m_compositor.find(d->m_compositorGroup, index); + QQuickVisualDataModelItem *cacheItem = it->inCache() ? d->m_cache.at(it.cacheIndex) : 0; + if (cacheItem) { + if (cacheItem->incubationTask) { + delete cacheItem->incubationTask->incubatingContext; + cacheItem->incubationTask->incubatingContext = 0; + d->releaseIncubator(cacheItem->incubationTask); + cacheItem->incubationTask = 0; + } + if (cacheItem->object && !cacheItem->isObjectReferenced()) { + d->destroy(cacheItem->object); + if (QQuickPackage *package = qobject_cast<QQuickPackage *>(cacheItem->object)) + d->emitDestroyingPackage(package); + else if (QQuickItem *item = qobject_cast<QQuickItem *>(cacheItem->object)) + d->emitDestroyingItem(item); + cacheItem->object = 0; + } + if (!cacheItem->isReferenced()) { + d->m_compositor.clearFlags(Compositor::Cache, it.cacheIndex, 1, Compositor::CacheFlag); + d->m_cache.removeAt(it.cacheIndex); + delete cacheItem; + Q_ASSERT(d->m_cache.count() == d->m_compositor.count(Compositor::Cache)); + } + } +} + void QQuickVisualDataModelPrivate::group_append( QQmlListProperty<QQuickVisualDataGroup> *property, QQuickVisualDataGroup *group) { @@ -708,8 +743,10 @@ void QQuickVisualDataModelPrivate::incubatorStatusChanged(QVDMIncubationTask *in incubationTask->incubatingContext = 0; if (!cacheItem->isReferenced()) { int cidx = m_cache.indexOf(cacheItem); - m_compositor.clearFlags(Compositor::Cache, cidx, 1, Compositor::CacheFlag); - m_cache.removeAt(cidx); + if (cidx >= 0) { + m_compositor.clearFlags(Compositor::Cache, cidx, 1, Compositor::CacheFlag); + m_cache.removeAt(cidx); + } delete cacheItem; Q_ASSERT(m_cache.count() == m_compositor.count(Compositor::Cache)); } |