ready for staging

public/assets/custom/js/jquery-data-to.js

@@ -0,0 +1,119 @@
+(function ($) {
+ var CountTo = function (element, options) {
+   this.$element = $(element);
+   this.options  = $.extend({}, CountTo.DEFAULTS, this.dataOptions(), options);
+   this.init();
+ };
+
+ CountTo.DEFAULTS = {
+   from: 0,               // the number the element should start at
+   to: 0,                 // the number the element should end at
+   speed: 1000,           // how long it should take to count between the target numbers
+   refreshInterval: 100,  // how often the element should be updated
+   decimals: 0,           // the number of decimal places to show
+   formatter: formatter,  // handler for formatting the value before rendering
+   onUpdate: null,        // callback method for every time the element is updated
+   onComplete: null       // callback method for when the element finishes updating
+ };
+
+ CountTo.prototype.init = function () {
+   this.value     = this.options.from;
+   this.loops     = Math.ceil(this.options.speed / this.options.refreshInterval);
+   this.loopCount = 0;
+   this.increment = (this.options.to - this.options.from) / this.loops;
+ };
+
+ CountTo.prototype.dataOptions = function () {
+   var options = {
+     from:            this.$element.data('from'),
+     to:              this.$element.data('to'),
+     speed:           this.$element.data('speed'),
+     refreshInterval: this.$element.data('refresh-interval'),
+     decimals:        this.$element.data('decimals')
+   };
+
+   var keys = Object.keys(options);
+
+   for (var i in keys) {
+     var key = keys[i];
+
+     if (typeof(options[key]) === 'undefined') {
+       delete options[key];
+     }
+   }
+
+   return options;
+ };
+
+ CountTo.prototype.update = function () {
+   this.value += this.increment;
+   this.loopCount++;
+
+   this.render();
+
+   if (typeof(this.options.onUpdate) == 'function') {
+     this.options.onUpdate.call(this.$element, this.value);
+   }
+
+   if (this.loopCount >= this.loops) {
+     clearInterval(this.interval);
+     this.value = this.options.to;
+
+     if (typeof(this.options.onComplete) == 'function') {
+       this.options.onComplete.call(this.$element, this.value);
+     }
+   }
+ };
+
+ CountTo.prototype.render = function () {
+   var formattedValue = this.options.formatter.call(this.$element, this.value, this.options);
+   this.$element.text(formattedValue);
+ };
+
+ CountTo.prototype.restart = function () {
+   this.stop();
+   this.init();
+   this.start();
+ };
+
+ CountTo.prototype.start = function () {
+   this.stop();
+   this.render();
+   this.interval = setInterval(this.update.bind(this), this.options.refreshInterval);
+ };
+
+ CountTo.prototype.stop = function () {
+   if (this.interval) {
+     clearInterval(this.interval);
+   }
+ };
+
+ CountTo.prototype.toggle = function () {
+   if (this.interval) {
+     this.stop();
+   } else {
+     this.start();
+   }
+ };
+
+ function formatter(value, options) {
+   return value.toFixed(options.decimals);
+ }
+
+ $.fn.countTo = function (option) {
+   return this.each(function () {
+     var $this   = $(this);
+     var data    = $this.data('countTo');
+     var init    = !data || typeof(option) === 'object';
+     var options = typeof(option) === 'object' ? option : {};
+     var method  = typeof(option) === 'string' ? option : 'start';
+
+     if (init) {
+       if (data) data.stop();
+       $this.data('countTo', data = new CountTo(this, options));
+     }
+
+     data[method].call(data);
+   });
+ };
+}(jQuery));