continues press gesture recognizer

cp.m

-(void) syncButtonViewDidPassedSyncTreshhold:(CPRSyncButtonView*) syncView {
    self.didFinishSync = YES;
}

-(void) syncButtonViewDidShowSyncConfirmation:(CPRSyncButtonView*) syncView {
    self.didFinishSync = NO;
    self.desktopSyncView.hidden = YES;
    self.accessoryView.hidden = NO;
}

-(void) _beginSyncProcessAnimationIfNeeded {
    if (!self.isSyncing && self.touchStartTimestamp + (self.syncStartThreasholds*1000) >= [[NSDate date] timeIntervalSince1970]) {
        self.isSyncing = YES;
        self.desktopSyncView.hidden = NO;
        self.accessoryView.hidden = YES;
        [self.desktopSyncView animateSync:self.syncHoldThreasholds];
    }
}

-(void) _onLongPress:(UILongPressGestureRecognizer*) sender {
    if (!self.canSyncWithDesktop) return;
    switch (sender.state) {
        case UIGestureRecognizerStateBegan: //first touch
            self.touchStartTimestamp = [[NSDate date] timeIntervalSince1970];
            self.syncingStartTimer = [NSTimer scheduledTimerWithTimeInterval:self.syncStartThreasholds target:self selector:@selector(_beginSyncProcessAnimationIfNeeded) userInfo:nil repeats:NO];
            break;
        case UIGestureRecognizerStateCancelled:
        case UIGestureRecognizerStateEnded: //finger is removed
            self.isSyncing = NO;
            [self.syncingStartTimer invalidate];
            self.syncingStartTimer = nil;
            
            if (!self.didFinishSync) {
                [self.desktopSyncView stopSyncAnimation];
                self.desktopSyncView.hidden = YES;
                self.accessoryView.hidden = NO;
            }
        case UIGestureRecognizerStateChanged:
            break;
        break;
        default:
            break;
    }
}