647 lines
24 KiB
JavaScript
647 lines
24 KiB
JavaScript
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/* offside-js 1.3.1 22-05-2016
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* Minimal JavaScript kit without library dependencies to push things off-canvas using just class manipulation
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* https://github.com/toomuchdesign/offside.git
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*
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* by Andrea Carraro
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* Available under the MIT license
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*/
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;(function ( window, document, undefined ) {
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/*
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* The first time Offside is called, it creates a singleton-factory object
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* and place it into "window.offside.factory".
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*
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* Offside factory serves the following purposes:
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* - DOM initialization
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* - Centralized Offside instances management and initialization
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*/
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'use strict';
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// Self-invoking function returning the object which contains
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// the "getInstance" method used for initializing
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// the Offside sigleton factory
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var offside = (function () {
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// Global Offside singleton-factory constructor
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function initOffsideFactory( options ) {
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// Utility functions
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// Shared among factory and Offside instances, too
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// Close all open Offsides.
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// If an Offside instance id is provided, it just closes the matching instance instead
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var closeAll = function( offsideId ) {
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// Look for an open Offside id
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if ( openOffsidesId.length > 0 ) {
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// Close matching Offside instance if an ID is provided
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if ( !isNaN( offsideId ) ) {
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instantiatedOffsides[ offsideId ].close();
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} else {
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// Close all Offside instances
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openOffsidesId.forEach( function( offsideId ) {
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instantiatedOffsides[ offsideId ].close();
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});
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}
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}
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},
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// Append a class to body in order to turn on elements CSS 3D transitions
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// only when happens the first interation with an Offside instance.
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// Otherwise we would see Offside instances being smoothly pushed
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// out of the screen during DOM initialization.
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turnOnCssTransitions = function() {
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addClass( body, transitionsClass );
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},
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addClass = function( el, c ) {
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if ( el.classList ) {
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el.classList.add(c);
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} else {
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el.className = ( el.className + ' ' + c ).trim();
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}
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},
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removeClass = function( el, c ) {
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if ( el.classList ) {
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el.classList.remove(c);
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} else {
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el.className = el.className.replace( new RegExp( '(^|\\b)' + c.split(' ').join('|') + '(\\b|$)', 'gi' ), ' ' );
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}
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},
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addEvent = function( el, eventName, eventHandler ) {
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el.addEventListener( eventName, eventHandler );
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},
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removeEvent = function( el, eventName, eventHandler ) {
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el.removeEventListener( eventName, eventHandler );
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},
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// Return a collection (array) of DOM elements from:
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// - A DOM element
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// - An array of DOM elements
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// - A string selector
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getDomElements = function( els ) {
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// "els" is a DOM element
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// http://stackoverflow.com/a/120275/2902821
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if( els instanceof HTMLElement ){
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return [ els ];
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}
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// "els" is an array
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else if( Array.isArray( els ) ) {
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return els;
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}
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// "els" is a string
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else if( typeof els === 'string' ) {
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// Convert Nodelist into an array
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// http://www.jstips.co/en/converting-a-node-list-to-an-array/
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return Array.apply( null, document.querySelectorAll( els ) );
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}
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return false;
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},
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// Check if a value exists in an array. Returns:
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// - array index if value exists
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// - "false" if value is not found
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// See: http://stackoverflow.com/a/5767357
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isInArray = function( arr, value ) {
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var index = arr.indexOf( value );
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return index > -1 ? index : false;
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};
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// Offside.js factory initialization
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var i,
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factorySettings; // Offside factory private settings
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// Default factory settings
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factorySettings = {
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slidingElementsSelector: '.offside-sliding-element', // String: Default sliding elements selectors ('#foo, #bar')
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disableCss3dTransforms: false, // Disable CSS 3d Transforms support (for testing purposes)
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debug: false, // Boolean: If true, print errors in console
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};
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// User defined factory settings
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for ( i in options ) {
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if ( factorySettings.hasOwnProperty( i ) ) {
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factorySettings[i] = options[i];
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}
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}
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// Private factory properties
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var globalClass = 'offside-js', // Global Offside classes namespace
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initClass = globalClass + '--init', // Class appended to body when Offside is intialized
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slidingElementsClass = 'offside-sliding-element', // Class appended to sliding elements
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transitionsClass = globalClass + '--interact', // Class appended to body when ready to turn on Offside CSS transitions (Added when first menu interaction happens)
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instantiatedOffsides = [], // Array containing all instantiated offside elements
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firstInteraction = true, // Keep track of first Offside interaction
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has3d = factorySettings.disableCss3dTransforms ? false : _has3d(), // Browser supports CSS 3d Transforms
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openOffsidesId = [], // Tracks opened Offside instances id's
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body = document.body,
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slidingElements = getDomElements( factorySettings.slidingElementsSelector ), // Sliding elements
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debug = factorySettings.debug;
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// Offside singleton-factory Dom initialization
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// It's called just once on Offside singleton-factory init.
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function _factoryDomInit() {
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// Add class to sliding elements
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slidingElements.forEach( function( item ) {
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addClass( item, slidingElementsClass );
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});
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// DOM Fallbacks when CSS transform 3d not available
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if ( !has3d ) {
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// No CSS 3d Transform fallback
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addClass( document.documentElement, 'no-csstransforms3d' ); //Adds Modernizr-like class to HTML element when CSS 3D Transforms not available
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}
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// Add init class to body
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addClass( body, initClass );
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}
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// Private Offside factory methods
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// Testing for CSS 3D Transform Support
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// https://gist.github.com/lorenzopolidori/3794226
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function _has3d() {
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if ( !window.getComputedStyle ) {
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return false;
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}
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var el = document.createElement('p'),
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has3d,
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transforms = {
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'webkitTransform':'-webkit-transform',
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'OTransform':'-o-transform',
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'msTransform':'-ms-transform',
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'MozTransform':'-moz-transform',
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'transform':'transform'
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};
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// Add it to the body to get the computed style
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document.body.insertBefore(el, null);
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for( var t in transforms ){
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if( el.style[t] !== undefined ){
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el.style[t] = 'translate3d(1px,1px,1px)';
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has3d = window.getComputedStyle(el).getPropertyValue(transforms[t]);
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}
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}
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document.body.removeChild(el);
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return ( has3d !== undefined && has3d.length > 0 && has3d !== 'none' );
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}
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// Offside constructor wrapper
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// It supplies a wrapper around OffsideInstance constructor
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// to prevent instance initialization when casted on a non-existing DOM element
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// See: http://stackoverflow.com/a/8618792
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function createOffsideInstance( el, options, offsideId ) {
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// Check if provided element exists before using it to instantiate an Offside instance
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var domEl = el !== undefined ?
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getDomElements( el ) :
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getDomElements( '.offside' );
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// If provided el exists initialize an Offside instance, else return null
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return domEl !== false ?
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new OffsideInstance( domEl[0], options, offsideId ) :
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null;
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}
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// Offside constructor
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// Set up and initialize a new Offside instance
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// Called by Offside factory "getOffsideInstance()" method
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function OffsideInstance( domEl, options, offsideId ) {
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var i,
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offsideSettings;
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// Default Offside instance settings
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offsideSettings = {
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buttonsSelector: '', // String: Offside toggle buttons selectors ('#foo, #bar')
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slidingSide: 'left', // String: Offside element pushed on left or right
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init: function(){}, // Function: After init callback
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beforeOpen: function(){}, // Function: Before open callback
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afterOpen: function(){}, // Function: After open callback
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beforeClose: function(){}, // Function: Before close callback
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afterClose: function(){}, // Function: After close callback
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beforeDestroy: function(){}, // Function: After destroy callback
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afterDestroy: function(){}, // Function: After destroy callback
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};
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// User defined Offside instance settings
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for ( i in options ) {
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if ( offsideSettings.hasOwnProperty( i ) ) {
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offsideSettings[i] = options[i];
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}
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}
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// Offside instance private properties
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var offside = domEl, // Hello, I'm the Offside instance
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offsideButtons = getDomElements( offsideSettings.buttonsSelector ), // Offside toggle buttons
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slidingSide = offsideSettings.slidingSide,
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offsideClass = 'offside', // Class added to Offside instance when initialized
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offsideSideClass = offsideClass + '--' + slidingSide, // Class added to Offside instance when initialized (eg. offside offside--left)
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offsideOpenClass = 'is-open', // Class appended to Offside instance when open
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offsideBodyOpenClass = globalClass + '--' + 'is-open', // Class appended to body when an Offside instance is open (offside-js--is-open)
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offsideBodyOpenSideClass = globalClass + '--is-' + slidingSide, // Class appended to body when Offside instance is open (eg. offside-js--is-left / offside-js--is-open)
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id = offsideId || 0; // Offside instance id
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// Offside instance private methods
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var _toggleOffside = function() {
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// Premise: Just 1 Offside instance at time can be open.
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// Check currently toggling Offside status
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isInArray( openOffsidesId, id ) === false ? _openOffside() : _closeOffside();
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},
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_openOffside = function() {
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// beforeOpen callback
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offsideSettings.beforeOpen();
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// Turn on CSS transitions on first interaction with an Offside instance
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if ( firstInteraction ) {
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firstInteraction = false;
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turnOnCssTransitions();
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}
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// If another Offside instance is already open,
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// close it before going on
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closeAll();
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// Set global body active class for current Offside instance
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addClass( body, offsideBodyOpenClass );
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addClass( body, offsideBodyOpenSideClass );
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// Add Offside instance open class
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addClass( offside, offsideOpenClass );
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// Update open Offside instances tracker
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openOffsidesId.push( id );
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// afterOpen callback
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offsideSettings.afterOpen();
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},
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_closeOffside = function() {
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// Proceed with closing stuff only if
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// current Offside instance is listed among openOffsidesId array
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var index = isInArray( openOffsidesId, id );
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if ( index !== false ) {
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// beforeClose callback
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offsideSettings.beforeClose();
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// Remove global body active class for current Offside instance
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removeClass( body, offsideBodyOpenClass );
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removeClass( body, offsideBodyOpenSideClass );
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// Remove Offside instance open class
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removeClass( offside, offsideOpenClass );
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// Update open Offside instances tracker
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openOffsidesId.splice( index, 1 );
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// afterClose callback
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offsideSettings.afterClose();
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}
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},
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_closeAll = function() {
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closeAll();
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},
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// Offside buttons click handler
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_onButtonClick = function( e ) {
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e.preventDefault();
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_toggleOffside();
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},
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/*
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// Get Offside instance unique ID
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_getId = function() {
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return id;
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}
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*/
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// Set up and initialize a new Offside instance
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_initOffside = function() {
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if ( debug ) {
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_checkElements();
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}
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// Append classes to Offside instance (.offside and .offside{slidingSide})
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addClass( offside, offsideClass );
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addClass( offside, offsideSideClass );
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// Toggle Offside on click event
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offsideButtons.forEach( function( item ) {
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addEvent( item, 'click', _onButtonClick );
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});
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// Init callback
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offsideSettings.init();
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},
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_destroyOffside = function() {
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// beforeDestroy callback
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offsideSettings.beforeDestroy();
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// Close Offside intance before destroy
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_closeOffside();
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// Remove click event from Offside buttons
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offsideButtons.forEach( function( item ) {
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removeEvent( item, 'click', _onButtonClick );
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});
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// Remove classes appended on init phase
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removeClass( offside, offsideClass );
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removeClass( offside, offsideSideClass );
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// Destroy Offside instance
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delete instantiatedOffsides[id];
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// afterDestroy callback
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offsideSettings.afterDestroy();
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},
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// Fire console errors if DOM elements are missing
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_checkElements = function() {
|
||
|
|
|
||
|
|
if ( !offside ) {
|
||
|
|
console.error( 'Offside alert: "offside" selector could not match any element' );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( !offsideButtons.length ) {
|
||
|
|
console.error( 'Offside alert: "buttonsSelector" selector could not match any element' );
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// Offside instances public methods
|
||
|
|
this.toggle = function() {
|
||
|
|
_toggleOffside();
|
||
|
|
};
|
||
|
|
|
||
|
|
this.open = function() {
|
||
|
|
_openOffside();
|
||
|
|
};
|
||
|
|
|
||
|
|
this.close = function() {
|
||
|
|
_closeOffside();
|
||
|
|
};
|
||
|
|
|
||
|
|
this.closeAll = function() {
|
||
|
|
_closeAll();
|
||
|
|
};
|
||
|
|
|
||
|
|
this.destroy = function() {
|
||
|
|
_destroyOffside();
|
||
|
|
};
|
||
|
|
|
||
|
|
// Ok, init Offside instance
|
||
|
|
_initOffside();
|
||
|
|
|
||
|
|
} // OffsideInstance constructor end
|
||
|
|
|
||
|
|
|
||
|
|
// DOM initialization
|
||
|
|
_factoryDomInit();
|
||
|
|
|
||
|
|
// This is the actual returned Offside factory
|
||
|
|
return {
|
||
|
|
|
||
|
|
//Offside factory public methods
|
||
|
|
closeOpenOffside: function() {
|
||
|
|
closeAll();
|
||
|
|
},
|
||
|
|
|
||
|
|
// This is the method responsible for creating a new Offside instance
|
||
|
|
// and register it into "instantiatedOffsides" array
|
||
|
|
getOffsideInstance: function( el, options ) {
|
||
|
|
|
||
|
|
// Get length of instantiated Offsides array
|
||
|
|
var offsideId = instantiatedOffsides.length || 0,
|
||
|
|
|
||
|
|
// Instantiate new Offside instance
|
||
|
|
offsideInstance = createOffsideInstance( el, options, offsideId );
|
||
|
|
|
||
|
|
// If Offside instance is sccessfully created
|
||
|
|
if ( offsideInstance !== null ) {
|
||
|
|
|
||
|
|
// Push new instance into "instantiatedOffsides" array and return it
|
||
|
|
|
||
|
|
/*jshint -W093 */
|
||
|
|
return instantiatedOffsides[ offsideId ] = offsideInstance;
|
||
|
|
/*jshint +W093 */
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
} // initOffsideFactory() end
|
||
|
|
|
||
|
|
return {
|
||
|
|
|
||
|
|
// Get the Singleton instance if one exists
|
||
|
|
// or create one if it doesn't
|
||
|
|
getInstance: function ( el, options ) {
|
||
|
|
|
||
|
|
if ( !window.offside.factory ) {
|
||
|
|
window.offside.factory = initOffsideFactory( options );
|
||
|
|
}
|
||
|
|
|
||
|
|
return window.offside.factory.getOffsideInstance( el, options );
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
})();
|
||
|
|
|
||
|
|
// Store in window a reference to the Offside singleton factory
|
||
|
|
if ( typeof module !== 'undefined' && module.exports ) {
|
||
|
|
module.exports = offside.getInstance;
|
||
|
|
} else {
|
||
|
|
window.offside = offside.getInstance;
|
||
|
|
}
|
||
|
|
|
||
|
|
})( window, document );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Start GP.
|
||
|
|
*/
|
||
|
|
var generateOffside = offside( '.slideout-navigation', {
|
||
|
|
slidingElementsSelector:'#slideout-container',
|
||
|
|
buttonsSelector: '.slideout-mobile .main-navigation .menu-toggle, .slideout-both .main-navigation .menu-toggle, .slideout-both .slideout-toggle, .slideout-desktop .slideout-toggle',
|
||
|
|
slidingSide: offSide.side,
|
||
|
|
beforeOpen: function() {
|
||
|
|
document.querySelector( '.slideout-navigation' ).classList.add( 'slideout-transition' );
|
||
|
|
},
|
||
|
|
afterOpen: function() {
|
||
|
|
setTimeout( function() {
|
||
|
|
document.querySelector( '.slideout-navigation' ).classList.remove( 'slideout-transition' );
|
||
|
|
}, 10 );
|
||
|
|
|
||
|
|
document.documentElement.classList.add( 'slide-opened' );
|
||
|
|
document.body.classList.add( 'slide-opened' );
|
||
|
|
|
||
|
|
if ( document.body.classList.contains( 'dropdown-hover' ) ) {
|
||
|
|
var dropdownItems = document.querySelector( '.slideout-navigation' ).querySelectorAll( 'li.menu-item-has-children' );
|
||
|
|
for ( var i = 0; i < dropdownItems.length; i++ ) {
|
||
|
|
var spanToggle = dropdownItems[i].querySelector( 'span.dropdown-menu-toggle' );
|
||
|
|
|
||
|
|
if ( spanToggle ) {
|
||
|
|
spanToggle.setAttribute( 'tabindex', 0 );
|
||
|
|
spanToggle.setAttribute( 'role', 'button' );
|
||
|
|
spanToggle.setAttribute( 'aria-expanded', true );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Focus the first focusable element.
|
||
|
|
var focusable = document.querySelector( '.slideout-navigation' ).querySelectorAll( 'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])' );
|
||
|
|
|
||
|
|
if ( focusable ) {
|
||
|
|
setTimeout( function() {
|
||
|
|
focusable[0].focus();
|
||
|
|
}, 200 );
|
||
|
|
}
|
||
|
|
},
|
||
|
|
beforeClose: function() {
|
||
|
|
document.querySelector( '.slideout-navigation' ).classList.add( 'slideout-transition' );
|
||
|
|
},
|
||
|
|
afterClose: function() {
|
||
|
|
setTimeout( function() {
|
||
|
|
document.querySelector( '.slideout-navigation' ).classList.remove( 'slideout-transition' );
|
||
|
|
}, 500 );
|
||
|
|
|
||
|
|
var body = document.body,
|
||
|
|
nav = document.querySelectorAll( '.main-navigation' );
|
||
|
|
|
||
|
|
for ( var i = 0; i < nav.length; i++ ) {
|
||
|
|
if ( nav[i].classList.contains( 'toggled' ) ) {
|
||
|
|
nav[i].classList.remove( 'toggled' );
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
document.documentElement.classList.remove( 'slide-opened' );
|
||
|
|
body.classList.remove( 'slide-opened' );
|
||
|
|
|
||
|
|
if ( 'true' === document.querySelector( '.main-navigation .menu-toggle' ).getAttribute( 'aria-expanded' ) ) {
|
||
|
|
document.querySelector( '.main-navigation .menu-toggle' ).setAttribute( 'aria-expanded', false );
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( body.classList.contains( 'dropdown-hover' ) ) {
|
||
|
|
var dropdownItems = document.querySelector( '.main-navigation:not(.slideout-navigation):not(.mobile-menu-control-wrapper)' ).querySelectorAll( 'li.menu-item-has-children' );
|
||
|
|
for ( var i = 0; i < dropdownItems.length; i++ ) {
|
||
|
|
var spanToggle = dropdownItems[i].querySelector( 'span.dropdown-menu-toggle' );
|
||
|
|
|
||
|
|
if ( spanToggle ) {
|
||
|
|
spanToggle.removeAttribute( 'tabindex' );
|
||
|
|
spanToggle.setAttribute( 'role', 'presentation' );
|
||
|
|
spanToggle.removeAttribute( 'aria-expanded' );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} );
|
||
|
|
|
||
|
|
var closeElements = document.querySelectorAll( '.slideout-overlay, .slideout-exit, .slider-exit a' );
|
||
|
|
for ( var i = 0; i < closeElements.length; i++ ) {
|
||
|
|
closeElements[i].addEventListener( 'click', function( e ) {
|
||
|
|
e.preventDefault();
|
||
|
|
generateOffside.close();
|
||
|
|
} );
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Closes the slideout navigation if the link does something.
|
||
|
|
* eg. Goes to an anchor link
|
||
|
|
*
|
||
|
|
* @since 1.7
|
||
|
|
*/
|
||
|
|
var slideoutLinks = document.querySelectorAll( '.slideout-navigation ul a' );
|
||
|
|
|
||
|
|
var closeOffsideOnAction = function() {
|
||
|
|
var url = this.getAttribute( 'href' );
|
||
|
|
|
||
|
|
if ( '#' !== url && '' !== url && ! navigator.userAgent.match( /iemobile/i ) ) {
|
||
|
|
setTimeout( function() {
|
||
|
|
generateOffside.close();
|
||
|
|
}, 200 );
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
for ( var i = 0; i < slideoutLinks.length; i++ ) {
|
||
|
|
slideoutLinks[i].addEventListener( 'click', closeOffsideOnAction, false );
|
||
|
|
};
|
||
|
|
|
||
|
|
document.addEventListener( 'keyup', function( e ) {
|
||
|
|
if ( document.body.classList.contains( 'slide-opened' ) ) {
|
||
|
|
e = e || window.event;
|
||
|
|
|
||
|
|
if ( e.keyCode == 27 ) {
|
||
|
|
generateOffside.close();
|
||
|
|
|
||
|
|
var body = document.body;
|
||
|
|
|
||
|
|
// Focus our slideout toggle.
|
||
|
|
if ( window.document.documentElement.clientWidth <= 768 ) {
|
||
|
|
if ( body.classList.contains( 'slideout-mobile' ) || body.classList.contains( 'slideout-both' ) ) {
|
||
|
|
document.querySelectorAll( '.main-navigation:not(.slideout-navigation)' ).forEach( function( navigation ) {
|
||
|
|
if ( navigation && navigation.style.display !== 'none' ) {
|
||
|
|
navigation.querySelector( '.menu-toggle' ).focus();
|
||
|
|
}
|
||
|
|
} );
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ( body.classList.contains( 'slideout-desktop' ) || body.classList.contains( 'slideout-both' ) ) {
|
||
|
|
document.querySelectorAll( '.main-navigation:not(.slideout-navigation)' ).forEach( function( navigation ) {
|
||
|
|
if ( navigation && navigation.style.display !== 'none' ) {
|
||
|
|
navigation.querySelector( '.slideout-toggle a' ).focus();
|
||
|
|
}
|
||
|
|
} );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} );
|
||
|
|
|
||
|
|
var toggles = document.querySelectorAll( '.slideout-toggle a' );
|
||
|
|
for ( var i = 0; i < toggles.length; i++ ) {
|
||
|
|
toggles[ i ].addEventListener( 'keypress', function( e ) {
|
||
|
|
if ( ' ' === e.key ) {
|
||
|
|
e.preventDefault();
|
||
|
|
generateOffside.open();
|
||
|
|
}
|
||
|
|
} );
|
||
|
|
};
|