Prevent datacollector from running when operating on files

This stuff was racy from the beginning. It could happen that the model
got reset after we fetched the selected indexes. Add a mutex and lock it
before operating on the file view. Hopefully this will many, if not all
random crashes.

1 files changed, 8 insertions, 0 deletions

diff --git a/filesystemwidget.cpp b/filesystemwidget.cpp
index 4c05640..79ef2ab 100644
--- a/filesystemwidget.cpp
+++ b/filesystemwidget.cpp
@@ -163,6 +163,7 @@ void FilesystemWidget::directoryEdited(){
 }
 
 void FilesystemWidget::fileViewActivated(const QModelIndex &idx){
+    QMutexLocker l(&mFileModel->collector()->hold());
 	QModelIndex real = mFileProxy->mapToSource(idx);
     if(mFileModel->isDir(real)){
 		if(idx.data().toString() == ".."){
@@ -216,6 +217,7 @@ void FilesystemWidget::goBack(){
 }
 
 void FilesystemWidget::deleteFiles(){
+    QMutexLocker l(&mFileModel->collector()->hold());
     QSortFilterProxyModel *proxy = qobject_cast<QSortFilterProxyModel*>(mFileView->model());
 	QModelIndexList selected = mFileView->selectionModel()->selectedRows();
     if(selected.isEmpty()){
@@ -233,6 +235,7 @@ void FilesystemWidget::deleteFiles(){
 }
 
 void FilesystemWidget::toClipboard(int clipmode){
+    QMutexLocker l(&mFileModel->collector()->hold());
 	mClipboardMode = clipmode;
 	QClipboard *clip = qApp->clipboard();
 	QModelIndexList selected = mFileView->selectionModel()->selectedRows();
@@ -309,6 +312,7 @@ void FilesystemWidget::playSelected(const QString &player){
 }
 
 void FilesystemWidget::readSettings(){
+    QMutexLocker l(&mFileModel->collector()->hold());
 	QSettings s;
 	QStringList expandedDirs = s.value("paths/expandeddirs").toStringList();
 	if(expandedDirs.isEmpty()){
@@ -337,6 +341,7 @@ void FilesystemWidget::readSettings(){
 }
 
 void FilesystemWidget::writeSettings(){
+    QMutexLocker l(&mFileModel->collector()->hold());
 	QSettings s;
 	s.setValue("paths/expandeddirs", mExpandedDirs);
 	QModelIndex currentDir = mDirView->selectionModel()->currentIndex();
@@ -356,6 +361,7 @@ void FilesystemWidget::configChanged(){
 }
 
 void FilesystemWidget::dvdMount(){
+    QMutexLocker l(&mFileModel->collector()->hold());
 	QSettings s;
 	QString mountDir = s.value("paths/dvdmount").toString();
 	if(isMounted()){
@@ -414,6 +420,7 @@ void FilesystemWidget::selectAllPV(){
 }
 
 void FilesystemWidget::setWindowTitle(){
+    QMutexLocker l(&mFileModel->collector()->hold());
     QModelIndex curIdx = mDirView->selectionModel()->currentIndex();
     QString dir = curIdx.data(QFileSystemModel::FilePathRole).toString();
     mWindowTitle = QString(tr("Filemanager - [%1]")).arg(dir);
@@ -501,6 +508,7 @@ void FilesystemWidget::copyRecursive(const QFileInfo &start, const QString &dest
 }
 
 const QString FilesystemWidget::selectedDir(){
+    QMutexLocker l(&mFileModel->collector()->hold());
 	const QModelIndexList selected = mDirView->selectionModel()->selectedRows();
 	if(!selected.isEmpty()){
 		return selected.at(0).data(QFileSystemModel::FilePathRole).toString();