Canceling a delete confirmation

gistfile1.m

- (void)willTransitionToState:(UITableViewCellStateMask)state {
    
    if ((state & UITableViewCellStateShowingDeleteConfirmationMask) == UITableViewCellStateShowingDeleteConfirmationMask) {

        // ...

        _showingConfirmation = YES;
        
        _cancelDeleteGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(deleteConfirmation:)];
        [_table addGestureRecognizer:_cancelDeleteGesture];
        
    } else {
        // ...
    }

    // ...
}


- (void)didTransitionToState:(UITableViewCellStateMask)state {
    if (_showingConfirmation) {
        if ((state & UITableViewCellStateShowingDeleteConfirmationMask) != UITableViewCellStateShowingDeleteConfirmationMask) {
            _showingConfirmation = NO;
            
            if (_cancelDeleteGesture) {
                [_table removeGestureRecognizer:_cancelDeleteGesture];
                _cancelDeleteGesture = nil;
            }
        }
    }

    [super didTransitionToState:state];
}


// In iOS5 the tap gesture is fired before the touch on the delete button, even though the highlight happens
// In iOS6 the touch on the button fires before the tap gesture

- (void)deleteConfirmation:(UITapGestureRecognizer *)sender {
    if ([sender state] == UIGestureRecognizerStateEnded) {
        UITableViewCellEditingStyle editStyle = UITableViewCellEditingStyleNone;
        
        // Determine if we actually tapped on the delete button
        CGPoint curLocation = [sender locationInView:self];
        if (CGRectContainsPoint([_deleteButton frame], curLocation)) {
            _isDeleting = YES;
            editStyle = UITableViewCellEditingStyleDelete;
        }

        [self commitEdit:editStyle];
    }
}