void USBLinkTreeWidget::usblink_dirlist_callback(struct usblink_file *file, bool is_error, void *data)
{
if(is_error)
return;
QTreeWidget *w = static_cast<QTreeWidget*>(data);
//End of enumeration or error
if(!file)
{
//Find a dir to fill with entries
for(int i = 0; i < w->topLevelItemCount(); ++i)
if(usblink_dirlist_nested(w->topLevelItem(i)))
return;
// FIXME: If a file is transferred concurrently, this may never be set to false.
if(usblink_queue_size() == 1)
usblink_tree->doing_dirlist = false;
return;
}
//Add directory entry to tree widget
emit usblink_tree->wantToAddTreeItem(itemForUSBLinkFile(file), nullptr);
}
void USBLinkTreeWidget::usblink_dirlist_callback_nested(struct usblink_file *file, bool is_error, void *data)
{
QTreeWidgetItem *w = static_cast<QTreeWidgetItem*>(data);
//End of enumeration or error
if(!file)
{
w->setData(1, Qt::UserRole, QVariant(true)); //Dir is now filled
if(!is_error)
{
//Find a dir to fill with entries
for(int i = 0; i < w->treeWidget()->topLevelItemCount(); ++i)
if(usblink_dirlist_nested(w->treeWidget()->topLevelItem(i)))
return;
}
// FIXME: If a file is transferred concurrently, this may never be set to false.
if(usblink_queue_size() == 1)
usblink_tree->doing_dirlist = false;
return;
}
//Add directory entry to tree widget item (parent)
emit usblink_tree->wantToAddTreeItem(itemForUSBLinkFile(file), w);
}
static bool usblink_dirlist_nested(QTreeWidgetItem *w)
{
if(w->data(0, Qt::UserRole).value<bool>() == false) //Not a directory
return false;
if(w->data(1, Qt::UserRole).value<bool>() == false) //Not filled yet
{
QByteArray path_utf8 = usblink_path_item(w).toUtf8();
usblink_queue_dirlist(path_utf8.data(), MainWindow::usblink_dirlist_callback_nested, w);
return true;
}
else
{
for(int i = 0; i < w->childCount(); ++i)
if(usblink_dirlist_nested(w->child(i)))
return true;
}
return false;
}
bool USBLinkTreeWidget::usblink_dirlist_nested(QTreeWidgetItem *w)
{
// Find a directory (w or its children) to fill
if(w->data(0, Qt::UserRole).value<bool>() == false) //Not a directory
return false;
if(w->data(1, Qt::UserRole).value<bool>() == false) //Not filled yet
{
std::string path_utf8 = usblink_path_item(w).toStdString();
usblink_queue_dirlist(path_utf8, USBLinkTreeWidget::usblink_dirlist_callback_nested, w);
return true;
}
else
{
for(int i = 0; i < w->childCount(); ++i)
if(usblink_dirlist_nested(w->child(i)))
return true;
}
return false;
}
void MainWindow::usblink_dirlist_callback(struct usblink_file *file, void *data)
{
QTreeWidget *w = static_cast<QTreeWidget*>(data);
//End of enumeration or error
if(!file)
{
refresh_filebrowser = true;
//Find a dir to fill with entries
for(int i = 0; i < w->topLevelItemCount(); ++i)
if(usblink_dirlist_nested(w->topLevelItem(i)))
return;
return;
}
//Add directory entry to tree widget
QTreeWidgetItem *item = new QTreeWidgetItem({QString::fromUtf8(file->filename), file->is_dir ? "" : naturalSize(file->size)});
item->setData(0, Qt::UserRole, QVariant(file->is_dir));
item->setData(1, Qt::UserRole, QVariant(false));
w->addTopLevelItem(item);
}
