Wikitube.js

// ==UserScript==
// @name         Wikitube - YouTube on Wikipedia & 百度百科
// @name:zh-CN   Wikitube - YouTube on 维基百科 & 百度百科
// @name:zh-TW   Wikitube - YouTube on 維基百科 & 百度百科
// @namespace    WYOWW
// @version      3.4
// @description  Adds relevant YouTube videos to Wikipedia & 百度百科
// @description:zh-cn  Adds relevant YouTube videos to 维基百科 & 百度百科
// @description:zh-TW  Adds relevant YouTube videos to 維基百科 & 百度百科
// @include      http*://*.wikipedia.org/wiki*
// @include      http*://www.wikiwand.com/*
// @include      http*://baike.baidu.com/item/*
// @require      http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
// @author       Mark Dunne | http://markdunne.github.io/ | https://chrome.google.com/webstore/detail/wikitube/aneddidibfifdpbeppmpoackniodpekj
// @developer    vinc, drhouse
// @icon         https://en.wikipedia.org/static/favicon/wikipedia.ico
// ==/UserScript==

$(document).ready(function () {

    const YOUTUBE_DATA_API_CREDENTIAL_ = 'AIzaSyC1ucHysupgOH1JQmPaGqfFGoO1QCCOhQA';
    const YOUTUBE_DATA_API_CREDENTIAL_1 = 'AIzaSyCRziwj9Gem35VEPYva9oHBvoLXKPpYI-o';

    // pages of wikipedia which should disable Wikitube
    var banned_paths = [
        '/wiki/Main_Page',
		];
    var banned_paths_prefix = [
        '/wiki/Help:',
        '/wiki/Wikipedia:',
        '/wiki/User:',
        '/wiki/Special:'
    ];

	function addGlobalStyle(css) {
		var head, style;
		head = document.getElementsByTagName('head')[0];
		if (!head) { return; }
		style = document.createElement('style');
		style.type = 'text/css';
		style.innerHTML = css;
		head.appendChild(style);
	}

	addGlobalStyle('#wikitube_container { padding-bottom: 30px; overflow-y:hidden; white-space: nowrap; }');
	addGlobalStyle('#wikitube_container::-webkit-scrollbar { width: 0px; background: transparent; }');
	addGlobalStyle('#wikitube_container div { width: auto; height: 200px; margin-right: 5px; display: inline-block; box-shadow: 0 0 5px #888; }');
	addGlobalStyle('#wikitube_container .plusBtn { width: 100px;	text-align: center;	border-radius: 5px;	background-color: rgb(192, 62, 62);	background-position: center;	background-repeat: no-repeat;	cursor: pointer;}');
	addGlobalStyle('#wikitube_container .plusBtn:hover { background-color: rgb(192, 92, 92); }');

	var allow_path = function(path){
        console.log(path);
        for (var i = 0; i < banned_paths_prefix.length; i++){
			if(path.startsWith(banned_paths_prefix[i])){
               return false;
            }
        }
		for (var i = 0; i < banned_paths.length; i++) {
            if(path == banned_paths[i]){
				return false;
            }
		}
		return true;
	}

	var title_text;
	var num_videos_to_load;
	var num_videos_loaded = 0;
	var more_videos_button = $('<div class="plusBtn" title="Load more videos!"></div>');
	var container = $('<div id="wikitube_container"></div>');

	var first_load = function(){
        if( $('#mw-content-text').length ){ // wikipedia
            container.insertBefore('#mw-content-text');
        } else if( $('.main-content').length ){ // 百度百科
            container.insertBefore('.main-content');
        } else if ($('#fullContent').length) { // wikiwand
            container.insertBefore('#fullContent');
        }
		container.append(more_videos_button);

		var plusImgURL = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAMAAACdt4HsAAAACXBIWXMAAAsTAAALEwEAmpwYAAAKT2lDQ1BQaG90b3Nob3AgSUNDIHByb2ZpbGUAAHjanVNnVFPpFj333vRCS4iAlEtv\
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PCsTq7cEhXHl662meXrqz21SRqn1Dx/M/L9xutmnjEud3T6wAAAABJRU5ErkJggg==';

		more_videos_button.css('background-image', 'url(' + plusImgURL + ')');

		more_videos_button.click(function(){
			load_new_videos(false);
		});

        $('iframe').ready(function(){
            vinc_set_horiz_scroll();
        });
	}

	var load_new_videos = function(is_first_load){
		var url = 'https://www.googleapis.com/youtube/v3/search?part=snippet&q='+title_text+'&key=' + YOUTUBE_DATA_API_CREDENTIAL_1 + '&maxResults='+(num_videos_loaded+num_videos_to_load);
		$.getJSON(url, function(response){
			if(response['items'].length > 0){
				if (is_first_load) {
					first_load();
				}
				var new_videos = videos = response['items'];
				new_videos = new_videos.slice(num_videos_loaded);
				num_videos_loaded += num_videos_to_load;
				add_videos_to_page(new_videos);
			}
		});
	}

	var add_videos_to_page = function(new_videos){
		for (var i = 0; i < new_videos.length; i++) {
			video = new_videos[i];
			var videoHtml = '<div class="vinc_yt"><iframe width="350" height="200" frameborder="0" allowfullscreen src="//www.youtube.com/embed/'+video['id']['videoId']+'"></iframe></div>';
			more_videos_button.before(videoHtml);
		};
	}

	var test_func = function(){
		url = 'https://www.googleapis.com/youtube/v3/search?part=snippet&q=memes&key=' + YOUTUBE_DATA_API_CREDENTIAL_1;
		$.getJSON(url, function(response){
			console.log(response);
		})
	}

    var vinc_set_horiz_scroll = function(){
        $('#wikitube_container').on('mousewheel DOMMouseScroll', function(e){
            var delt = null;

            if (e.type == 'mousewheel') {
                delt = (e.originalEvent.wheelDelta * -1);
            }
            else if (e.type == 'DOMMouseScroll') {
                delt = 40 * e.originalEvent.detail;
            }

            if (delt) {
                e.preventDefault();
                $(this).scrollLeft(delt + $(this).scrollLeft());
            }
        });
    }

    // main code
    if(allow_path(window.location.pathname)){
        if( $('#mw-content-text').length ){ // wikipedia

            // title_text = document.getElementById('firstHeading').innerText;
            title_text = $("#firstHeading")[0].textContent;
            num_videos_to_load = Math.floor($('#bodyContent').width() / 350) + 1; //video width = 350px

            // append a youtube link icon after title
            var search_url = "https://www.youtube.com/results?search_query=" + title_text;
            var youtube_icon_url = "data:image/png;base64,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"
            $("#firstHeading").append(" &nbsp;<a href='" + search_url + "' target='_blank'><img height='17px' src='" + youtube_icon_url + "'></img></a>")

        } else if( $('.main-content').length ){ // 百度百科
            title_text = $(".lemmaWgt-lemmaTitle-title h1")[0].textContent;
            num_videos_to_load = Math.floor($('.body-wrapper .content-wrapper .content').width() / 350) + 1; //video width = 350px

        } else if ($('#fullContent').length){ // wikiwand
            title_text = $('.firstHeading > span').text();
            num_videos_to_load = Math.floor($('#article_content_wrapper').width() / 350); //video width = 350px
        }
        load_new_videos(true);
    }

});