w-slider-controller.js

/**
 * Extends Webflow Slider with public methods to swich between slides
 *
 * Paste this code on the Custom Code panel to get started:
 * 
 *   var slider = new W_SLIDER_CONTROLLER( '#element_id' );
 *   slider.setup('drag_disabled') // removes the drag-and-slide interaction
 *   slider.goto( 2 ); // jumps to the second slide
 */
var W_SLIDER_CONTROLLER = function( el ){
	// force it to instance
	// http://jsfiddle.net/vXbLL/
	if (!this instanceof W_SLIDER_CONTROLLER)
			return new W_SLIDER_CONTROLLER( el );
	
	// WF is already using jQuery lets keep it that way
	var $el = $( el );
	if(!$el[0]){
		console.error("Cannot find any Webflow Slider present!");
		return;//exit
	}

	var _self = this;
	
	// save DOM references that will act as slider controls
	_self.$el = $el;
	_self.$slides = $el.children('.w-slider-mask').children('.w-slide');
	_self.$nav = $el.children('.w-slider-nav').children('.w-slider-dot');

	_self.$el.attr('data-status', 'initialized');

	return this;
};

/**
 * @method count
 * @return {Number}		Qty of slides
 */
W_SLIDER_CONTROLLER.prototype.count = function(){
	return this.$slides.length;
}

/**
 * @method current
 * @return {Number}			Current index [begins at 1]
 */
W_SLIDER_CONTROLLER.prototype.current = function(){
	return this.$nav.filter('.w-active').index() + 1
}

/**
 * Jumps to the pervious slider (cyclic)
 *
 * @method prev
 */
W_SLIDER_CONTROLLER.prototype.prev = function(){
	var tgt =  this.current() - 1;
	if(tgt > this.count())
		tgt = 0;
	else if(tgt < 0)
		tgt = this.count();

	this.goto( tgt );
};

/**
* Jumps to the next slider (cyclic)
*
* @method prev
*/
W_SLIDER_CONTROLLER.prototype.next = function(){
	var tgt = this.current();
	if(tgt > this.count())
		tgt = 0;
	else if(tgt < 0)
		tgt = this.count();

	this.goto( tgt );
};

/**
* Jumps to the specified slider
*
* Triggers W_BEFORE_SLIDE and W_ON_SLIDE for futher interactions
*
* @method prev
* @param	{Number}	index		Desired slide index
*/
W_SLIDER_CONTROLLER.prototype.goto = function( index ){
	$(this.$el).trigger('W_BEFORE_SLIDE');

	$(this.$nav[index]).trigger('tap');

	$(this.$el).trigger('W_ON_SLIDE');
};

/**
 * Allows to configure the slider features
 *
 * @method setup
 * @param	{String}		Desired action string
 */
W_SLIDER_CONTROLLER.prototype.setup = function(action){
	var _self = this;

	switch(action){
		case 'drag_disabled':
			// http://forum.webflow.com/t/disable-dragging-for-sliders/3225/6
			Webflow.push(function() {
				_self.$el.off('swipe');
			});
		break;
		case 'infinite_loop':
			// http://forum.webflow.com/t/disable-dragging-for-sliders/3225/6
			Webflow.push(function() {
				$('.w-slider').off('mousedown.w-slider touchstart.w-slider');
			});
		break;
	}
};

Hi,
I think this is what I'm looking for. Could it be used to test for an active slide, and if so, fire an event? Something like:
if (slider.current == 4) {
element.hide();
} else {
element.show();
}
Thanks for any insights!

Update: I just found the "Affect different elements" checkbox in the interactions pane. That did the trick. So you can ignore and delete this if you want. I will bookmark if I have a need for more in depth hooks into the slider. Thanks!