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// Native Javascript for Bootstrap 3 | Dropdown
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// by dnp_theme
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(function(factory){
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// CommonJS/RequireJS and "native" compatibility
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if(typeof module !== "undefined" && typeof exports == "object") {
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// A commonJS/RequireJS environment
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if(typeof window != "undefined") {
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// Window and document exist, so return the factory's return value.
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module.exports = factory();
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} else {
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// Let the user give the factory a Window and Document.
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module.exports = factory;
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}
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} else {
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// Assume a traditional browser.
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window.Dropdown = factory();
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}
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})(function(root){
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// DROPDOWN DEFINITION
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// ===================
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var Dropdown = function( element) {
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this.menu = typeof element === 'object' ? element : document.querySelector(element);
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this.init();
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}
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// DROPDOWN METHODS
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// ================
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Dropdown.prototype = {
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init : function() {
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this.actions();
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this.menu.setAttribute('tabindex', '0'); // Fix onblur on Chrome | Safari
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document.addEventListener('click', this.handle, false);
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},
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actions : function() {
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var self = this;
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this.handle = function(e) { // fix some Safari bug with <button>
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var target = e.target || e.currentTarget,
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children = [], c = self.menu.parentNode.getElementsByTagName('*');
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for ( var i=0, l = c.length||0; i<l; i++) { l && children.push(c[i]); }
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if ( target === self.menu || target.parentNode === self.menu ) {
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self.toggle(e);
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} else if ( children && children.indexOf(target) > -1 ) {
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return;
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} else { self.close(); }
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/\#$/g.test(target.href) && e.preventDefault();
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}
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this.toggle = function(e) {
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if (/open/.test(this.menu.parentNode.className)) {
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this.close();
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document.removeEventListener('keydown', this.key, false);
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} else {
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this.menu.parentNode.className += ' open';
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this.menu.setAttribute('aria-expanded',true);
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document.addEventListener('keydown', this.key, false);
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}
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}
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this.key = function(e) {
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if (e.which == 27) {self.close();}
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}
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this.close = function() {
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self.menu.parentNode.className = self.menu.parentNode.className.replace(' open','');
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self.menu.setAttribute('aria-expanded',false);
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}
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}
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}
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// DROPDOWN DATA API
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// =================
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var Dropdowns = document.querySelectorAll('[data-toggle=dropdown]'), i = 0, ddl = Dropdowns.length;
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for (i;i<ddl;i++) {
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new Dropdown(Dropdowns[i]);
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}
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return Dropdown;
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});
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