Ubooquity Currently Reading

themeScript.js

// Anonymous "self-invoking" function
(function() {
	var startingTime = new Date().getTime();
	// Load the script
	var script = document.createElement("SCRIPT");
	script.src = 'https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js';
	script.type = 'text/javascript';
	document.getElementsByTagName("head")[0].appendChild(script);

	// Poll for jQuery to come into existance
	var checkReady = function(callback) {
		if (window.jQuery) {
			callback(jQuery);
		} else {
			window.setTimeout(function() { checkReady(callback); }, 20);
		}
	};

	// Start polling...
	checkReady(function($) {
		//////////////////////////////////
		//Add currently reading condition to comic
		//////////////////////////////////
		$('.thumb a img').each(function(){
			raw_src = $(this).attr('src')
			page_num = '0';
			//sort comics from folders
			if (raw_src.search("folder") >= 0){
				//console.log("raw_src: "+raw_src);
			} else {
				//extract Comic ID
				thing = $(this);
				src = $(this).attr('src');				//console.log("source: "+src);
				$(this).closest('.thumb').append('');
				var comicid = src.split('/');			//console.log("Comic ID: "+comicid[2]);
				//get comic meta from server
				json_url = window.location.origin+"/user-api/bookmark?docId="+comicid[2];		//console.log("url: "+json_url);
				$.getJSON( json_url, function() {
					//console.log( "json_url success" );
				}).done(function( data ) {
					current_this = thing;
					if (data != null){
						var items = [];
						var c_id = '';
						var c_pages = '';
						var page_num = '';
						$.each( data, function( key, val ) {
							if (key == 'docId'){ c_id = val;}
							if (key == 'mark'){	page_num = val;}
						});
						if (page_num != '0'){
							// get total pages from server
							content_url = window.location.origin+"/comicdetails/"+c_id;	//console.log("url: "+content_url);
							$.get( content_url, function() {
								//console.log( "content_url success" );
							}).done(function( data ) {
								details = $('<details>').append($.parseHTML(data));
								size_div = $('#details_size', details).html();
								c_pages = size_div.match(/\d+/)[0];

								thumb = $("img[src*='"+c_id+"']").closest('.thumb');
								thumb.css({ 'display' : 'flex',
											'justify-content' : 'flex-end',
											'flex-direction' : 'column'});
								base_thumb_content = thumb.html();
								// set reading if page_num < total_pages
								if (page_num >= (c_pages - 1)) {
									progress_percent = 100;
									progress_string = "Completed";
								} else {
									progress_percent = ((page_num/c_pages) * 100);
									page_int = Number(page_num);
									progress_string = (page_int++) + " of " + c_pages;
								}
								modified_thumb_content = "<div class='progress-container'  style='position: absolute; z-index: 9; width: -webkit-fill-available; background: rgba(00, 00, 00, 0.6)' >" +
															"<div class='progress_percent' style='bottom: 0px; left: 0px; background: rgba(50, 200, 50, 0.7); width: " + progress_percent + "%;'>&nbsp;</div>" +
															"<div class='progress_string'  style='bottom: 0px; left: 0px; position: absolute; color: #FFF; width: 100%; height: 100%;'>" + progress_string + "</div>" +
														 "</div>" + base_thumb_content;
								console.log(modified_thumb_content);
								thumb.html(modified_thumb_content);
							});
						}
						//console.log("page_num "+page_num);
					}
				}).fail(function(){});
			}
		//console.log("triggered");
		});
	});
})();
// end Anonymous "self-invoking" function

HI, is there any chance to modify this script for ebooks (epub)? I have been looking for API specifications, but cannot find anything... I am using Material theme (as you do, i recon)..
Thanks in advance!