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bootstrap/node_modules/css-emitter-component/index.js

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+/**
+ * Module Dependencies
+ */
+
+var events = require('event');
+
+// CSS events
+
+var watch = [
+  'transitionend'
+, 'webkitTransitionEnd'
+, 'oTransitionEnd'
+, 'MSTransitionEnd'
+, 'animationend'
+, 'webkitAnimationEnd'
+, 'oAnimationEnd'
+, 'MSAnimationEnd'
+];
+
+/**
+ * Expose `CSSnext`
+ */
+
+module.exports = CssEmitter;
+
+/**
+ * Initialize a new `CssEmitter`
+ *
+ */
+
+function CssEmitter(element){
+  if (!(this instanceof CssEmitter)) return new CssEmitter(element);
+  this.el = element;
+}
+
+/**
+ * Bind CSS events.
+ *
+ * @api public
+ */
+
+CssEmitter.prototype.bind = function(fn){
+  for (var i=0; i < watch.length; i++) {
+    events.bind(this.el, watch[i], fn);
+  }
+  return this;
+};
+
+/**
+ * Unbind CSS events
+ * 
+ * @api public
+ */
+
+CssEmitter.prototype.unbind = function(fn){
+  for (var i=0; i < watch.length; i++) {
+    events.unbind(this.el, watch[i], fn);
+  }
+  return this;
+};
+
+/**
+ * Fire callback only once
+ * 
+ * @api public
+ */
+
+CssEmitter.prototype.once = function(fn){
+  var self = this;
+  function on(){
+    self.unbind(on);
+    fn.apply(self.el, arguments);
+  }
+  self.bind(on);
+  return this;
+};
+