Configuration: prompt delete data on remove disk

Resolves #103

ConfigurationViews/VMConfigDrivesViewController.m

@@ -70,8 +70,10 @@ - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)
 - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
  NSAssert(indexPath.section == 0, @"Invalid section");
  if (editingStyle == UITableViewCellEditingStyleDelete) {
+ NSString *name = [self.configuration driveImagePathForIndex:indexPath.row];
  [self.configuration removeDriveAtIndex:indexPath.row];
  [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
+ [self promptDelete:name];
  }
 }
 
@@ -108,4 +110,38 @@ - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
  }
 }
 
+#pragma mark - Delete Disk
+
+- (void)showAlert:(NSString *)msg completion:(nullable void (^)(UIAlertAction *action))completion {
+ UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"" message:msg preferredStyle:UIAlertControllerStyleAlert];
+ UIAlertAction *okay = [UIAlertAction actionWithTitle:NSLocalizedString(@"OK", @"OK button") style:UIAlertActionStyleDefault handler:completion];
+ [alert addAction:okay];
+ dispatch_async(dispatch_get_main_queue(), ^{
+ [self presentViewController:alert animated:YES completion:nil];
+ });
+}
+
+- (void)promptDelete:(NSString *)name {
+ NSURL *path;
+ if (self.configuration.existingPath) {
+ path = [self.configuration.existingPath URLByAppendingPathComponent:[UTMConfiguration diskImagesDirectory] isDirectory:YES];
+ } else {
+ path = [[NSFileManager defaultManager].temporaryDirectory URLByAppendingPathComponent:[UTMConfiguration diskImagesDirectory] isDirectory:YES];
+ }
+ UIAlertController *alert = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"Delete Data", @"VMConfigDrivesViewController") message:NSLocalizedString(@"Do you want to also delete the disk image data? If yes, the data will be lost. Otherwise, you can create a new drive with the existing data.", @"VMConfigDrivesViewController") preferredStyle:UIAlertControllerStyleAlert];
+ UIAlertAction *delete = [UIAlertAction actionWithTitle:NSLocalizedString(@"Yes", @"Yes button") style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action){
+ NSError *err;
+ [[NSFileManager defaultManager] removeItemAtURL:[path URLByAppendingPathComponent:name] error:&err];
+ if (err) {
+ [self showAlert:err.localizedDescription completion:nil];
+ }
+ }];
+ UIAlertAction *cancel = [UIAlertAction actionWithTitle:NSLocalizedString(@"No", @"No button") style:UIAlertActionStyleCancel handler:nil];
+ [alert addAction:delete];
+ [alert addAction:cancel];
+ dispatch_async(dispatch_get_main_queue(), ^{
+ [self presentViewController:alert animated:YES completion:nil];
+ });
+}
+
 @end