Infinite scrolling for the NJPW World video library, powered by Metafizzy's Infinite-Scroll.js
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// ==UserScript== // @name NJPW World Infinite Video Scrolling // @version 1.0.2 // @description Infinite scrolling for the NJPW World video library, powered by Metafizzy's Infinite-Scroll.js // @namespace http://about.me/daveyjacobson // @author Davey Jacobson <[email protected]> // @match *://njpwworld.com/search/latest* // @require https://unpkg.com/infinite-scroll@3/dist/infinite-scroll.pkgd.min.js // @grant none // @noframes // ==/UserScript== (function( win, undefined ) { 'use strict'; // Standard globals. var doc = document, html = doc.documentElement, head = doc.head, body = doc.body; // Begin NJPW Infinite Scroll. var njpwInfScroll = { containerParent: '.contents-left', container: '.second-movie-box', target: '.movieArea', paginate: '.pager', nextPage: 'a.next', pageLoadStatusClass: '.page-load-status', pageLoadStatus: '<style id="infAnimation">.loader-wheel{font-size:64px;position:relative;height:1em;width:1em;padding-left:.45em;overflow:hidden;margin:0 auto;animation:loader-wheel-rotate .5s steps(12) infinite}.loader-wheel i{display:block;position:absolute;height:.3em;width:.1em;border-radius:.05em;background:#333;opacity:.8;transform:rotate(-30deg);transform-origin:center .5em}@keyframes loader-wheel-rotate{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}</style><p class="infinite-scroll-request"><div class="loader-wheel"><i><i><i><i><i><i><i><i><i><i><i><i></i></i></i></i></i></i></i></i></i></i></i></i></div></p><p class="infinite-scroll-last">End of content</p><p class="infinite-scroll-error">No more pages to load</p>', /** * jQuery's `$.extend` in pure vanilla JS. * * @author Chris Ferdinandi <[email protected]> * @see {@link https://gomakethings.com/vanilla-javascript-version-of-jquery-extend} * * For a deep extend, set the `deep` argument to `true`. */ extend: function () { // Variables var extended = {}, deep = false, i = 0, length = arguments.length; // Check if a deep merge if ( Object.prototype.toString.call( arguments[0] ) === '[object Boolean]' ) { deep = arguments[0]; i++; } // Merge the object into the extended object var merge = function (obj) { for ( var prop in obj ) { if ( Object.prototype.hasOwnProperty.call( obj, prop ) ) { // If deep merge and property is an object, merge properties if ( deep && Object.prototype.toString.call(obj[prop]) === '[object Object]' ) { extended[prop] = extend( true, extended[prop], obj[prop] ); } else { extended[prop] = obj[prop]; } } } }; // Loop through each object and conduct a merge for ( ; i < length; i++ ) { var obj = arguments[i]; merge(obj); } return extended; }, /** * New Mutation Observer * * @memberof njpwInfScroll * @function * @requires njpwInfScroll#parseArgs * * @param {Object} args { * Default function arguments. * * @type {String} targetNode Element selector string. * @type {Function|String} callback Custom callback function. * @type {Bool} foundation Checks if `callback` is Foundation selector. * } */ mutant: function( args ) { var defaults = { 'targetNode': '', 'callback': '', 'foundation': false, 'childList': true, 'attributes': false, 'subtree': true }; args = this.parseArgs( args, defaults ); // Check for any abnormalities. var // Make sure we know the node selector we're dealing with. isClass = ( '#' === args.targetNode.charAt(0) ? false : true ), // Get the proper method based on the node. method = ( false === isClass ? 'getElementById' : 'getElementsByClassName' ), // Clean up the selector. selector = ( null !== args.targetNode.charAt(0).match( /(\#|\.)/ ) ? args.targetNode.slice(1) : args.targetNode ), // Select the node that will be observed for mutations. element = ( 'getElementById' === method ? doc[ method ]( selector ) : doc[ method ]( selector )[0] ), // Options for the observer (which mutations to observe). config = { attributes: args.attributes, childList: args.childList, subtree: args.subtree }; // Listener function to execute when mutations are observed. var listen = function( mutationsList, observer ) { for ( var mutation of mutationsList ) { if ( args.childList && 'childList' === mutation.type ) { if ( ! args.foundation && args.callback && 'function' === typeof( args.callback ) ) { args.callback(); } else { mutation.addedNodes.forEach( function( el ) { $( el ).find( args.callback ).foundation(); }); } } else if ( args.attributes && 'attributes' === mutation.type ) { console.log( mutation.attributeName ); } else { console.log( mutation ); } } }; // Create an observer instance linked to the callback function win.observer = new MutationObserver( listen ); // Start observing the target node for configured mutations observer.observe( element, config ); }, /** * Disconnect `mutant` listener. * * @return void */ mutantDisconnect: function() { if ( ! win.observer ) { return; } else { observer.disconnect(); } }, /** * `ParseArgs` for JavaScript; like `wp_parse_args`. * * @memberof njpwInfScroll * @function * * @param {Object} args Function parameters. * @param {Object} defaults Function parameter default values. */ parseArgs: function( args, defaults ) { if ( typeof args !== 'object' ) { args = {}; } if ( typeof defaults !== 'object' ) { defaults = {}; } return this.extend( {}, defaults, args ); }, /** * Add the necessary nodes and styles. * * @memberof njpwInfScroll * @function */ stylesAndSettings: function() { var self = this; // The node location to insert the actual `spinning wheel` HTML. var videoWall = doc.querySelectorAll( self.containerParent )[0], videoPaged = videoWall.children[3], spinWheel = doc.createElement( 'div' ); // Spinning Wheel attributes. spinWheel.className = this.pageLoadStatusClass.slice(1); spinWheel.innerHTML = this.pageLoadStatus; spinWheel.style.marginTop = '-25px'; spinWheel.style.marginBottom = '25px'; spinWheel.style.textAlign = 'center'; // Insert `spinning wheel`. videoWall.insertBefore( spinWheel, videoPaged ); }, init: function() { var self = this, loadInfScroll = function() { if ( win.InfiniteScroll ) { var infScroll = new InfiniteScroll( self.container, { path: 'latest?page={{#}}', append: self.target, checkLastPage: self.nextPage, hideNav: self.paginate, status: self.pageLoadStatusClass, debug: false }); } }, args = { targetNode: self.container, callback: loadInfScroll }; this.stylesAndSettings(); this.mutant( args ); if ( '/search/latest' !== location.pathname ) { this.mutantDisconnect(); } } }; njpwInfScroll.init(); })(window);
