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plugin/cim: safe async this

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Fixes wallpaper picker crash on fast input
This commit is contained in:
2 * r + 2 * t 2025-08-30 23:03:55 +10:00
parent e5722af7db
commit c72338655f
1 changed files with 19 additions and 18 deletions
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37
plugin/src/Caelestia/cachingimagemanager.cpp
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@ -108,34 +108,35 @@ void CachingImageManager::updateSource(const QString& path) {
m_shaPath = path;
QThreadPool::globalInstance()->start([path, this] {
const QString sha = sha256sum(path);
QPointer<CachingImageManager> self(this);
QThreadPool::globalInstance()->start([path, self] {
const QString sha = self->sha256sum(path);
QMetaObject::invokeMethod(this, [path, sha, this]() {
if (m_path != path) {
// Path has changed, ignore
QMetaObject::invokeMethod(self, [path, sha, self]() {
if (!self || self->m_path != path) {
// Object is destroyed or path has changed, ignore
return;
}
int width = effectiveWidth();
int height = effectiveHeight();
int width = self->effectiveWidth();
int height = self->effectiveHeight();
if (!m_item || !width || !height) {
if (!self->m_item || !width || !height) {
return;
}
const QString fillMode = m_item->property("fillMode").toString();
const QString fillMode = self->m_item->property("fillMode").toString();
const QString filename = QString("%1@%2x%3-%4.png")
.arg(sha).arg(width).arg(height)
.arg(fillMode == "PreserveAspectCrop" ? "crop" : fillMode == "PreserveAspectFit" ? "fit" : "stretch");
const QUrl cache = m_cacheDir.resolved(QUrl(filename));
if (m_cachePath == cache) {
const QUrl cache = self->m_cacheDir.resolved(QUrl(filename));
if (self->m_cachePath == cache) {
return;
}
m_cachePath = cache;
emit cachePathChanged();
self->m_cachePath = cache;
emit self->cachePathChanged();
if (!cache.isLocalFile()) {
qWarning() << "CachingImageManager::updateSource: cachePath" << cache << "is not a local file";
@ -145,15 +146,15 @@ void CachingImageManager::updateSource(const QString& path) {
bool cacheExists = QFile::exists(cache.toLocalFile());
if (cacheExists) {
m_item->setProperty("source", cache);
self->m_item->setProperty("source", cache);
} else {
m_item->setProperty("source", QUrl::fromLocalFile(path));
createCache(path, cache.toLocalFile(), fillMode, QSize(width, height));
self->m_item->setProperty("source", QUrl::fromLocalFile(path));
self->createCache(path, cache.toLocalFile(), fillMode, QSize(width, height));
}
// Clear current running sha if same
if (m_shaPath == path) {
m_shaPath = QString();
if (self->m_shaPath == path) {
self->m_shaPath = QString();
}
}, Qt::QueuedConnection);
});