fix(gui): show revert buttons only when folder is idle (fixes #10191) (#10212)

Currently, the Revert Local Changes button for Receive Only folders, and
the Delete Unexpected Items button for Receive Encrypted folders buttons
are shown even when the folder is already performing other operations.
Because of the above, pressing the button seems to have no effect, as
its operation can only proceed after the previous operations have
completed. This confuses the user, who then may keep trying to press the
buttons again and again with no visible result.

Therefore, show the two buttons only when the folders are actually idle,
without performing other operations at the same time. This change makes
them behave similarly to the Override Changes button, which is also only
displayed for Send Only folders when they are idle.

Signed-off-by: Tomasz Wilczyński [email protected]

gui/default/index.html

@@ -619,10 +619,10 @@
                   <button type="button" class="btn btn-sm btn-danger pull-left" ng-click="revertOverrideConfirmationModal('override', folder.id)" ng-if="folderStatus(folder) == 'outofsync' && folder.type == 'sendonly'">
                     <span class="fas fa-arrow-circle-up"></span>&nbsp;<span translate>Override Changes</span>
                   </button>
-                  <button type="button" class="btn btn-sm btn-danger pull-left" ng-click="revertOverrideConfirmationModal('revert', folder.id)" ng-if="hasReceiveOnlyChanged(folder)">
+                  <button type="button" class="btn btn-sm btn-danger pull-left" ng-click="revertOverrideConfirmationModal('revert', folder.id)" ng-if="hasReceiveOnlyChanged(folder) && ['outofsync', 'faileditems', 'localadditions'].indexOf(folderStatus(folder)) >= 0">
                     <span class="fa fa-arrow-circle-down"></span>&nbsp;<span translate>Revert Local Changes</span>
                   </button>
-                  <button type="button" class="btn btn-sm btn-danger pull-left" ng-click="revertOverrideConfirmationModal('deleteEnc', folder.id)" ng-if="hasReceiveEncryptedItems(folder)">
+                  <button type="button" class="btn btn-sm btn-danger pull-left" ng-click="revertOverrideConfirmationModal('deleteEnc', folder.id)" ng-if="hasReceiveEncryptedItems(folder) && ['outofsync', 'faileditems', 'localunencrypted'].indexOf(folderStatus(folder)) >= 0">
                     <span class="fa fa-minus-circle"></span>&nbsp;<span translate>Delete Unexpected Items</span>
                   </button>
                   <span class="pull-right">