SelectiveSync: show a message in case of error or if there is no subfolder

Usefull when the folder does not exist (for example in case the theme
has a defaultServerFolder that does not yet exist, #2788)

But also to avoid confusion (issue #2663)

1 files changed, 21 insertions, 2 deletions

diff --git a/src/gui/selectivesyncdialog.cpp b/src/gui/selectivesyncdialog.cpp
index 243558a32..6652bbe16 100644
--- a/src/gui/selectivesyncdialog.cpp
+++ b/src/gui/selectivesyncdialog.cpp
@@ -58,6 +58,8 @@ void SelectiveSyncTreeView::refreshFolders()
     LsColJob *job = new LsColJob(_account, _folderPath, this);
     connect(job, SIGNAL(directoryListingSubfolders(QStringList)),
             this, SLOT(slotUpdateDirectories(QStringList)));
+    connect(job, SIGNAL(finishedWithError(QNetworkReply*)),
+            this, SLOT(slotLscolFinishedWithError(QNetworkReply*)));
     job->start();
     clear();
     _loading->show();
@@ -135,9 +137,16 @@ void SelectiveSyncTreeView::slotUpdateDirectories(const QStringList&list)
     QScopedValueRollback<bool> isInserting(_inserting);
     _inserting = true;
 
-    _loading->hide();
-
     QTreeWidgetItem *root = topLevelItem(0);
+
+    if (!root && list.size() <= 1) {
+        _loading->setText(tr("No subfolders currently on the server."));
+        _loading->resize(_loading->sizeHint()); // because it's not in a layout
+        return;
+    } else {
+        _loading->hide();
+    }
+
     if (!root) {
         root = new QTreeWidgetItem(this);
         root->setText(0, _rootName);
@@ -175,6 +184,16 @@ void SelectiveSyncTreeView::slotUpdateDirectories(const QStringList&list)
     root->setExpanded(true);
 }
 
+void SelectiveSyncTreeView::slotLscolFinishedWithError(QNetworkReply *r)
+{
+    if (r->error() == QNetworkReply::ContentNotFoundError) {
+        _loading->setText(tr("No subfolders currently on the server."));
+    } else {
+        _loading->setText(tr("An error occured while loading the list of sub folders."));
+    }
+    _loading->resize(_loading->sizeHint()); // because it's not in a layout
+}
+
 void SelectiveSyncTreeView::slotItemExpanded(QTreeWidgetItem *item)
 {
     QString dir = item->data(0, Qt::UserRole).toString();