Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nihil opus est exemplis hoc facere longius. In his igitur partibus duabus nihil erat, quod Zeno commutare gestiret. Duo Reges: constructio interrete. Quid nunc honeste dicit? Age, inquies, ista parva sunt. Si id dicis, vicimus.
-
-
Primum quid tu dicis breve? Nam ista vestra: Si gravis, brevis; Tollenda est atque extrahenda radicitus. Recte dicis;Est enim effectrix multarum et magnarum voluptatum. Vide ne ista sint Manliana vestra aut maiora etiam, si imperes quod facere non possim. Qua tu etiam inprudens utebare non numquam. Atque haec ita iustitiae propria sunt, ut sint virtutum reliquarum communia.
-
-
- Nam neque virtute retinetur ille in vita, nec iis, qui sine
- virtute sunt, mors est oppetenda.
-
- Quid enim ab antiquis ex eo genere, quod ad disserendum
- valet, praetermissum est?
+
+
+ JQuery Scrollspy demo
+
+
+
+
+
+
+
+
+
+
Here's some text content before the navigation
+
+
+
+
+
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nihil opus est exemplis hoc facere longius. In his igitur partibus duabus nihil erat, quod Zeno commutare gestiret. Duo Reges: constructio interrete. Quid nunc honeste dicit? Age, inquies, ista parva sunt. Si id dicis, vicimus.
+
Primum quid tu dicis breve? Nam ista vestra: Si gravis, brevis; Tollenda est atque extrahenda radicitus. Recte dicis;Est enim effectrix multarum et magnarum voluptatum. Vide ne ista sint Manliana vestra aut maiora etiam, si imperes quod facere non possim. Qua tu etiam inprudens utebare non numquam. Atque haec ita iustitiae propria sunt, ut sint virtutum reliquarum communia.
+
+ Nam neque virtute retinetur ille in vita, nec iis, qui sine
+ virtute sunt, mors est oppetenda.
+
+ Quid enim ab antiquis ex eo genere, quod ad disserendum
+ valet, praetermissum est?
+
+
Immo videri fortasse. Minime vero istorum quidem, inquit. Pugnant Stoici cum Peripateticis. Sed quot homines, tot sententiae;
+
Haeret in salebra. Estne, quaeso, inquam, sitienti in bibendo voluptas? Octavio fuit, cum illam severitatem in eo filio adhibuit, quem in adoptionem D.
+ Scrupulum, inquam, abeunti; De malis autem et bonis ab iis animalibus, quae nondum depravata sint, ait optime iudicari. Cum id fugiunt, re eadem defendunt, quae Peripatetici, verba.
+
+
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nihil opus est exemplis hoc facere longius. In his igitur partibus duabus nihil erat, quod Zeno commutare gestiret. Duo Reges: constructio interrete. Quid nunc honeste dicit? Age, inquies, ista parva sunt. Si id dicis, vicimus.
+
Primum quid tu dicis breve? Nam ista vestra: Si gravis, brevis; Tollenda est atque extrahenda radicitus. Recte dicis;Est enim effectrix multarum et magnarum voluptatum. Vide ne ista sint Manliana vestra aut maiora etiam, si imperes quod facere non possim. Qua tu etiam inprudens utebare non numquam. Atque haec ita iustitiae propria sunt, ut sint virtutum reliquarum communia.
+
+ Nam neque virtute retinetur ille in vita, nec iis, qui sine
+ virtute sunt, mors est oppetenda.
+
+ Quid enim ab antiquis ex eo genere, quod ad disserendum
+ valet, praetermissum est?
-
-
-
Immo videri fortasse. Minime vero istorum quidem, inquit. Pugnant Stoici cum Peripateticis. Sed quot homines, tot sententiae;
-
-
Haeret in salebra. Estne, quaeso, inquam, sitienti in bibendo voluptas? Octavio fuit, cum illam severitatem in eo filio adhibuit, quem in adoptionem D. Scrupulum, inquam, abeunti; De malis autem et bonis ab iis animalibus, quae nondum depravata sint, ait optime iudicari. Cum id fugiunt, re eadem defendunt, quae Peripatetici, verba.
-
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nihil opus est exemplis hoc facere longius. In his igitur partibus duabus nihil erat, quod Zeno commutare gestiret. Duo Reges: constructio interrete. Quid nunc honeste dicit? Age, inquies, ista parva sunt. Si id dicis, vicimus.
-
-
Primum quid tu dicis breve? Nam ista vestra: Si gravis, brevis; Tollenda est atque extrahenda radicitus. Recte dicis;Est enim effectrix multarum et magnarum voluptatum. Vide ne ista sint Manliana vestra aut maiora etiam, si imperes quod facere non possim. Qua tu etiam inprudens utebare non numquam. Atque haec ita iustitiae propria sunt, ut sint virtutum reliquarum communia.
-
-
- Nam neque virtute retinetur ille in vita, nec iis, qui sine
- virtute sunt, mors est oppetenda.
-
- Quid enim ab antiquis ex eo genere, quod ad disserendum
- valet, praetermissum est?
-
-
-
-
Immo videri fortasse. Minime vero istorum quidem, inquit. Pugnant Stoici cum Peripateticis. Sed quot homines, tot sententiae;
-
-
Haeret in salebra. Estne, quaeso, inquam, sitienti in bibendo voluptas? Octavio fuit, cum illam severitatem in eo filio adhibuit, quem in adoptionem D. Scrupulum, inquam, abeunti; De malis autem et bonis ab iis animalibus, quae nondum depravata sint, ait optime iudicari. Cum id fugiunt, re eadem defendunt, quae Peripatetici, verba.
-
-
Tu enim ista lenius, hic Stoicorum more nos vexat.
-
-
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Dicet pro me ipsa virtus nec dubitabit isti vestro beato M. Sed residamus, inquit, si placet. Si quae forte-possumus. Quid censes in Latino fore? Duo Reges: constructio interrete. Nummus in Croesi divitiis obscuratur, pars est tamen divitiarum. An tu me de L. Quae contraria sunt his, malane? An potest, inquit ille, quicquam esse suavius quam nihil dolere? Itaque in rebus minime obscuris non multus est apud eos disserendi labor.
-
-
- Omne enim animal, simul et ortum est, se ipsum et omnes partes suas diligit duasque, quae maximae sunt, in primis amplectitur, animum et corpus, deinde utriusque partes.
-
-
-
-
Bonum incolumis acies: misera caecitas. Ego vero volo in virtute vim esse quam maximam; Traditur, inquit, ab Epicuro ratio neglegendi doloris. Quid de Platone aut de Democrito loquar? Inde igitur, inquit, ordiendum est. Philosophi autem in suis lectulis plerumque moriuntur. Quantum Aristoxeni ingenium consumptum videmus in musicis? Qui enim voluptatem ipsam contemnunt, iis licet dicere se acupenserem maenae non anteponere.
-
-
-
Sed quia studebat laudi et dignitati, multum in virtute processerat.
-
Quae similitudo in genere etiam humano apparet.
-
Beatus sibi videtur esse moriens.
-
Odium autem et invidiam facile vitabis.
-
Commoda autem et incommoda in eo genere sunt, quae praeposita et reiecta diximus;
-
-
-
-
Quorum altera prosunt, nocent altera. At, si voluptas esset bonum, desideraret. Haec para/doca illi, nos admirabilia dicamus. Et quidem iure fortasse, sed tamen non gravissimum est testimonium multitudinis. Illa argumenta propria videamus, cur omnia sint paria peccata. Hanc ergo intuens debet institutum illud quasi signum absolvere.
-
-
-
-
-
+
Immo videri fortasse. Minime vero istorum quidem, inquit. Pugnant Stoici cum Peripateticis. Sed quot homines, tot sententiae;
+
Haeret in salebra. Estne, quaeso, inquam, sitienti in bibendo voluptas? Octavio fuit, cum illam severitatem in eo filio adhibuit, quem in adoptionem D.
+ Scrupulum, inquam, abeunti; De malis autem et bonis ab iis animalibus, quae nondum depravata sint, ait optime iudicari. Cum id fugiunt, re eadem defendunt, quae Peripatetici, verba.
+
+
Tu enim ista lenius, hic Stoicorum more nos vexat.
+
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Dicet pro me ipsa virtus nec dubitabit isti vestro beato M. Sed residamus, inquit, si placet. Si quae forte-possumus. Quid censes in Latino fore? Duo Reges: constructio interrete. Nummus in Croesi divitiis obscuratur, pars est tamen divitiarum. An tu me de L. Quae contraria sunt his, malane? An potest, inquit ille, quicquam esse suavius quam nihil dolere? Itaque in rebus minime obscuris non multus est apud eos disserendi labor.
+
+ Omne enim animal, simul et ortum est, se ipsum et omnes partes suas diligit duasque, quae maximae sunt, in primis amplectitur, animum et corpus, deinde utriusque partes.
+
+
Bonum incolumis acies: misera caecitas. Ego vero volo in virtute vim esse quam maximam; Traditur, inquit, ab Epicuro ratio neglegendi doloris. Quid de Platone aut de Democrito loquar? Inde igitur, inquit, ordiendum est. Philosophi autem in suis lectulis plerumque moriuntur. Quantum Aristoxeni ingenium consumptum videmus in musicis? Qui enim voluptatem ipsam contemnunt, iis licet dicere se acupenserem maenae non anteponere.
+
+
Sed quia studebat laudi et dignitati, multum in virtute processerat.
+
Quae similitudo in genere etiam humano apparet.
+
Beatus sibi videtur esse moriens.
+
Odium autem et invidiam facile vitabis.
+
Commoda autem et incommoda in eo genere sunt, quae praeposita et reiecta diximus;
+
+
Quorum altera prosunt, nocent altera. At, si voluptas esset bonum, desideraret. Haec para/doca illi, nos admirabilia dicamus. Et quidem iure fortasse, sed tamen non gravissimum est testimonium multitudinis. Illa argumenta propria videamus, cur omnia sint paria peccata. Hanc ergo intuens debet institutum illud quasi signum absolvere.
+
+
+
-
-
-
-
-
+
+
+
+
+
diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644
index 0000000..4c7563c
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,65 @@
+/* global require */
+
+var gulp = require('gulp');
+var eslint = require('gulp-eslint');
+var gulpIf = require('gulp-if');
+var rename = require('gulp-rename');
+var uglify = require('gulp-uglify');
+
+// Assets for the project
+var Assets = {
+ main: './jquery-scrollspy.js',
+ minified: './jquery-scrollspy.min.js',
+ package: './package.json',
+ readme: './README.md',
+ source: './',
+};
+
+// See the uglify documentation for more details
+var _uglifySettings = {
+ compress: {
+ comparisons: true,
+ conditionals: true,
+ /* jscs: disable */
+ dead_code: true,
+ drop_console: true,
+ /* jscs: enable */
+ unsafe: true,
+ unused: true,
+ },
+};
+
+// Check the main js file(s) meets the following standards outlined in .eslintrc
+gulp.task('eslint', function esLintTask() {
+ // Has ESLint fixed the file contents?
+ function isFixed(file) {
+ return file.eslint !== undefined && file.eslint !== null && file.eslint.fixed;
+ }
+
+ return gulp.src(Assets.main)
+ .pipe(eslint({
+ fix: true,
+ useEslintrc: '.eslintrc',
+ }))
+ .pipe(eslint.format())
+ .pipe(gulpIf(isFixed, gulp.dest(Assets.source)));
+});
+
+// Uglify aka minify the main file
+gulp.task('uglify', function uglifyTask() {
+ return gulp.src(Assets.main)
+ .pipe(uglify(_uglifySettings))
+ .pipe(rename(Assets.minified))
+ .pipe(gulp.dest(Assets.source));
+});
+
+// Watch for changes to the main file
+gulp.task('watch', function watchTask() {
+ gulp.watch(Assets.main, ['eslint', 'uglify']);
+});
+
+// Register the default task
+gulp.task('default', ['eslint', 'uglify']);
+
+// 'gulp eslint' to check the syntax of the main js file(s)
+// 'gulp uglify' to uglify the main file
diff --git a/jquery-scrollspy.js b/jquery-scrollspy.js
index 7345496..4fd4f53 100644
--- a/jquery-scrollspy.js
+++ b/jquery-scrollspy.js
@@ -1,97 +1,267 @@
-/*!
- * jQuery Scrollspy Plugin
- * Author: @sxalexander
+/*
+ * jQuery ScrollSpy Plugin
+ * Author: @sxalexander, softwarespot
* Licensed under the MIT license
*/
-;(function ( $, window, document, undefined ) {
+(function jQueryScrollspy(window, $) {
+ // Plugin Logic
$.fn.extend({
- scrollspy: function ( options ) {
-
- var defaults = {
- min: 0,
- max: 0,
- mode: 'vertical',
- namespace: 'scrollspy',
- buffer: 0,
- container: window,
- onEnter: options.onEnter ? options.onEnter : [],
- onLeave: options.onLeave ? options.onLeave : [],
- onTick: options.onTick ? options.onTick : []
- }
-
- var options = $.extend( {}, defaults, options );
-
- return this.each(function (i) {
-
- var element = this;
- var o = options;
- var $container = $(o.container);
- var mode = o.mode;
- var buffer = o.buffer;
- var enters = leaves = 0;
- var inside = false;
-
- /* add listener to container */
- $container.bind('scroll.' + o.namespace, function(e){
- var position = {top: $(this).scrollTop(), left: $(this).scrollLeft()};
- var xy = (mode == 'vertical') ? position.top + buffer : position.left + buffer;
- var max = o.max;
- var min = o.min;
-
- /* fix max */
- if($.isFunction(o.max)){
- max = o.max();
- }
-
- /* fix max */
- if($.isFunction(o.min)){
- min = o.min();
- }
-
- if(max == 0){
- max = (mode == 'vertical') ? $container.height() : $container.outerWidth() + $(element).outerWidth();
- }
-
- /* if we have reached the minimum bound but are below the max ... */
- if(xy >= min && xy <= max){
- /* trigger enter event */
- if(!inside){
- inside = true;
- enters++;
-
- /* fire enter event */
- $(element).trigger('scrollEnter', {position: position})
- if($.isFunction(o.onEnter)){
- o.onEnter(element, position);
- }
-
- }
-
- /* trigger tick event */
- $(element).trigger('scrollTick', {position: position, inside: inside, enters: enters, leaves: leaves})
- if($.isFunction(o.onTick)){
- o.onTick(element, position, inside, enters, leaves);
- }
- }else{
-
- if(inside){
- inside = false;
- leaves++;
- /* trigger leave event */
- $(element).trigger('scrollLeave', {position: position, leaves:leaves})
-
- if($.isFunction(o.onLeave)){
- o.onLeave(element, position);
- }
+ scrollspy: function scrollspy(options, action) {
+ // If the options parameter is a string, then assume it's an 'action', therefore swap the parameters around
+ if (_isString(options)) {
+ var tempOptions = action;
+
+ // Set the action as the option parameter
+ action = options;
+
+ // Set to be the reference action pointed to
+ options = tempOptions;
+ }
+
+ // override the default options with those passed to the plugin
+ options = $.extend({}, _defaults, options);
+
+ // sanitize the following option with the default value if the predicate fails
+ _sanitizeOption(options, _defaults, 'container', _isObject);
+
+ // cache the jQuery object
+ var $container = $(options.container);
+
+ // check if it's a valid jQuery selector
+ if ($container.length === 0) {
+ return this;
+ }
+
+ // sanitize the following option with the default value if the predicate fails
+ _sanitizeOption(options, _defaults, 'namespace', _isString);
+
+ // check if the action is set to DESTROY/destroy
+ if (_isString(action) && action.toUpperCase() === 'DESTROY') {
+ $container.off('scroll.' + options.namespace);
+ return this;
+ }
+
+ // sanitize the following options with the default values if the predicates fails
+ _sanitizeOption(options, _defaults, 'buffer', $.isNumeric);
+ _sanitizeOption(options, _defaults, 'max', $.isNumeric);
+ _sanitizeOption(options, _defaults, 'min', $.isNumeric);
+
+ // callbacks
+ _sanitizeOption(options, _defaults, 'onEnter', $.isFunction);
+ _sanitizeOption(options, _defaults, 'onLeave', $.isFunction);
+ _sanitizeOption(options, _defaults, 'onLeaveTop', $.isFunction);
+ _sanitizeOption(options, _defaults, 'onLeaveBottom', $.isFunction);
+ _sanitizeOption(options, _defaults, 'onTick', $.isFunction);
+
+ if ($.isFunction(options.max)) {
+ options.max = options.max();
+ }
+
+ if ($.isFunction(options.min)) {
+ options.min = options.min();
+ }
+
+ // check if the mode is set to VERTICAL/vertical
+ var isVertical = window.String(options.mode).toUpperCase() === 'VERTICAL';
+
+ return this.each(function each() {
+ // cache this
+ var _this = this;
+
+ // cache the jQuery object
+ var $element = $(_this);
+
+ // count the number of times a container is entered
+ var enters = 0;
+
+ // determine if the scroll is with inside the container
+ var inside = false;
+
+ // count the number of times a container is left
+ var leaves = 0;
+
+ // create a scroll listener for the container
+ $container.on('scroll.' + options.namespace, function onScroll() {
+ // cache the jQuery object
+ var $this = $(this);
+
+ // create a position object literal
+ var position = {
+ top: $this.scrollTop(),
+ left: $this.scrollLeft(),
+ };
+
+ var containerHeight = $container.height();
+
+ var max = options.max;
+
+ var min = options.min;
+
+ var xAndY = isVertical ? position.top + options.buffer : position.left + options.buffer;
+
+ if (max === 0) {
+ // get the maximum value based on either the height or the outer width
+ max = isVertical ? containerHeight : $container.outerWidth() + $element.outerWidth();
}
- }
- });
- });
- }
+ // if we have reached the minimum bound, though are below the max
+ if (xAndY >= min && xAndY <= max) {
+ // trigger the 'scrollEnter' event
+ if (!inside) {
+ inside = true;
+ enters++;
+
+ // trigger the 'scrollEnter' event
+ $element.trigger('scrollEnter', {
+ position: position,
+ });
+
+ // call the 'onEnter' function
+ if (options.onEnter !== null) {
+ options.onEnter(_this, position);
+ }
+ }
+
+ // trigger the 'scrollTick' event
+ $element.trigger('scrollTick', {
+ position: position,
+ inside: inside,
+ enters: enters,
+ leaves: leaves,
+ });
+
+ // call the 'onTick' function
+ if (options.onTick !== null) {
+ options.onTick(_this, position, inside, enters, leaves);
+ }
+ } else {
+ if (inside) {
+ inside = false;
+ leaves++;
+
+ // trigger the 'scrollLeave' event
+ $element.trigger('scrollLeave', {
+ position: position,
+ leaves: leaves,
+ });
+
+ // call the 'onLeave' function
+ if (options.onLeave !== null) {
+ options.onLeave(_this, position);
+ }
+
+ if (xAndY <= min) {
+ // trigger the 'scrollLeaveTop' event
+ $element.trigger('scrollLeaveTop', {
+ position: position,
+ leaves: leaves,
+ });
+
+ // call the 'onLeaveTop' function
+ if (options.onLeaveTop !== null) {
+ options.onLeaveTop(_this, position);
+ }
+ } else if (xAndY >= max) {
+ // trigger the 'scrollLeaveBottom' event
+ $element.trigger('scrollLeaveBottom', {
+ position: position,
+ leaves: leaves,
+ });
+
+ // call the 'onLeaveBottom' function
+ if (options.onLeaveBottom !== null) {
+ options.onLeaveBottom(_this, position);
+ }
+ }
+ } else {
+ // Idea taken from: http://stackoverflow.com/questions/5353934/check-if-element-is-visible-on-screen
+ var containerScrollTop = $container.scrollTop();
+
+ // Get the element height
+ var elementHeight = $element.height();
+
+ // Get the element offset
+ var elementOffsetTop = $element.offset().top;
+
+ if ((elementOffsetTop < (containerHeight + containerScrollTop)) && (elementOffsetTop > (containerScrollTop - elementHeight))) {
+ // trigger the 'scrollView' event
+ $element.trigger('scrollView', {
+ position: position,
+ });
+
+ // call the 'onView' function
+ if (options.onView !== null) {
+ options.onView(_this, position);
+ }
+ }
+ }
+ }
+ });
+ });
+ },
+ });
+
+ // Fields (Private)
+
+ // Defaults
+
+ // default options
+ var _defaults = {
+ // the offset to be applied to the left and top positions of the container
+ buffer: 0,
+
+ // the element to apply the 'scrolling' event to (default window)
+ container: window,
+
+ // the maximum value of the X or Y coordinate, depending on mode the selected
+ max: 0,
+
+ // the maximum value of the X or Y coordinate, depending on mode the selected
+ min: 0,
+
+ // whether to listen to the X (horizontal) or Y (vertical) scrolling
+ mode: 'vertical',
+
+ // namespace to append to the 'scroll' event
+ namespace: 'scrollspy',
+
+ // call the following callback function every time the user enters the min / max zone
+ onEnter: null,
+
+ // call the following callback function every time the user leaves the min / max zone
+ onLeave: null,
+
+ // call the following callback function every time the user leaves the top zone
+ onLeaveTop: null,
+
+ // call the following callback function every time the user leaves the bottom zone
+ onLeaveBottom: null,
+
+ // call the following callback function on each scroll event within the min and max parameters
+ onTick: null,
+
+ // call the following callback function on each scroll event when the element is inside the viewable view port
+ onView: null,
+ };
+
+ // Methods (Private)
+
+ // check if a value is an object datatype
+ function _isObject(value) {
+ return $.type(value) === 'object';
+ }
- })
+ // check if a value is a string datatype with a length greater than zero when whitespace is stripped
+ function _isString(value) {
+ return $.type(value) === 'string' && $.trim(value).length > 0;
+ }
-
-})( jQuery, window, document, undefined );
+ // check if an option is correctly formatted using a predicate; otherwise, return the default value
+ function _sanitizeOption(options, defaults, property, predicate) {
+ // set the property to the default value if the predicate returned false
+ if (!predicate(options[property])) {
+ options[property] = defaults[property];
+ }
+ }
+}(window, window.jQuery));
diff --git a/jquery-scrollspy.min.js b/jquery-scrollspy.min.js
new file mode 100644
index 0000000..2782536
--- /dev/null
+++ b/jquery-scrollspy.min.js
@@ -0,0 +1 @@
+!function(e,n){function o(e){return"object"===n.type(e)}function i(e){return"string"===n.type(e)&&n.trim(e).length>0}function t(e,n,o,i){i(e[o])||(e[o]=n[o])}n.fn.extend({scrollspy:function(l,s){if(i(l)){var a=s;s=l,l=a}l=n.extend({},r,l),t(l,r,"container",o);var c=n(l.container);if(0===c.length)return this;if(t(l,r,"namespace",i),i(s)&&"DESTROY"===s.toUpperCase())return c.off("scroll."+l.namespace),this;t(l,r,"buffer",n.isNumeric),t(l,r,"max",n.isNumeric),t(l,r,"min",n.isNumeric),t(l,r,"onEnter",n.isFunction),t(l,r,"onLeave",n.isFunction),t(l,r,"onLeaveTop",n.isFunction),t(l,r,"onLeaveBottom",n.isFunction),t(l,r,"onTick",n.isFunction),n.isFunction(l.max)&&(l.max=l.max()),n.isFunction(l.min)&&(l.min=l.min());var u="VERTICAL"===e.String(l.mode).toUpperCase();return this.each(function(){var e=this,o=n(e),i=0,t=!1,r=0;c.on("scroll."+l.namespace,function(){var s=n(this),a={top:s.scrollTop(),left:s.scrollLeft()},f=c.height(),p=l.max,m=l.min,v=u?a.top+l.buffer:a.left+l.buffer;if(0===p&&(p=u?f:c.outerWidth()+o.outerWidth()),v>=m&&p>=v)t||(t=!0,i++,o.trigger("scrollEnter",{position:a}),null!==l.onEnter&&l.onEnter(e,a)),o.trigger("scrollTick",{position:a,inside:t,enters:i,leaves:r}),null!==l.onTick&&l.onTick(e,a,t,i,r);else if(t)t=!1,r++,o.trigger("scrollLeave",{position:a,leaves:r}),null!==l.onLeave&&l.onLeave(e,a),m>=v?(o.trigger("scrollLeaveTop",{position:a,leaves:r}),null!==l.onLeaveTop&&l.onLeaveTop(e,a)):v>=p&&(o.trigger("scrollLeaveBottom",{position:a,leaves:r}),null!==l.onLeaveBottom&&l.onLeaveBottom(e,a));else{var g=c.scrollTop(),L=o.height(),h=o.offset().top;f+g>h&&h>g-L&&(o.trigger("scrollView",{position:a}),null!==l.onView&&l.onView(e,a))}})})}});var r={buffer:0,container:e,max:0,min:0,mode:"vertical",namespace:"scrollspy",onEnter:null,onLeave:null,onLeaveTop:null,onLeaveBottom:null,onTick:null,onView:null}}(window,window.jQuery);
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..27ca196
--- /dev/null
+++ b/package.json
@@ -0,0 +1,21 @@
+{
+ "name": "jquery-scrollspy",
+ "version": "1.0.0",
+ "license": "MIT",
+ "repository": {
+ "type": "git",
+ "url": "https://github.com/softwarespot/jquery-scrollspy.git"
+ },
+ "devDependencies": {
+ "del": "^2.1.0",
+ "eslint": "^2.5.1",
+ "eslint-config-airbnb": "^6.2.0",
+ "gulp": "^3.9.1",
+ "gulp-eslint": "^2.0.0",
+ "gulp-if": "^2.0.0",
+ "gulp-rename": "~1.2.2",
+ "gulp-replace": "^0.5.4",
+ "gulp-uglify": "^1.5.3",
+ "merge2": "^1.0.1"
+ }
+}
diff --git a/test/demo.html b/test/demo.html
new file mode 100644
index 0000000..8a83975
--- /dev/null
+++ b/test/demo.html
@@ -0,0 +1,32 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/test/memory-leak.coffee b/test/memory-leak.coffee
new file mode 100644
index 0000000..006b8bc
--- /dev/null
+++ b/test/memory-leak.coffee
@@ -0,0 +1,22 @@
+drool = require('drool')
+assert = require('assert')
+path = require('path')
+
+driver = drool.start
+ chromeOptions: 'no-sandbox'
+
+webdriver = drool.webdriver
+
+drool.flow({
+ repeatCount: 5
+ setup: ->
+ driver.get('file://' + path.join(__dirname, '/demo.html'))
+ action: ->
+ driver.findElement(webdriver.By.css('#add')).click()
+ driver.findElement(webdriver.By.css('#remove')).click()
+ assert: (after, initial) ->
+ assert.equal(initial.nodes, after.nodes, 'node count should match')
+
+}, driver)
+
+driver.quit()
\ No newline at end of file
diff --git a/test/memory-leak.js b/test/memory-leak.js
new file mode 100644
index 0000000..0919b60
--- /dev/null
+++ b/test/memory-leak.js
@@ -0,0 +1,30 @@
+// Generated by CoffeeScript 1.9.3
+var assert, driver, drool, path, webdriver;
+
+drool = require('drool');
+
+assert = require('assert');
+
+path = require('path');
+
+driver = drool.start({
+ chromeOptions: 'no-sandbox'
+});
+
+webdriver = drool.webdriver;
+
+drool.flow({
+ repeatCount: 5,
+ setup: function() {
+ return driver.get('file://' + path.join(__dirname, '/demo.html'));
+ },
+ action: function() {
+ driver.findElement(webdriver.By.css('#add')).click();
+ return driver.findElement(webdriver.By.css('#remove')).click();
+ },
+ assert: function(after, initial) {
+ return assert.equal(initial.nodes, after.nodes, 'node count should match');
+ }
+}, driver);
+
+driver.quit();