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wwmoraes / Blackboard

// ==UserScript==
// @name            Blackboard
// @description     Fix some anoying limitations and problems of BB.
// @version         0.1
// @copyright       2018, William Moraes (https://william.moraes.nom.br)
// @license         GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt
// @icon            https://www.blackboard.com/images/favicon.ico
// @author          William Moraes <https:/>/scr.im/>wwm> (https://william.moraes.nom.br)
// @namespace       william.moraes.nom.br
// @homepageURL     https://github.com/wwmoraes/userscripts
// @supportURL      https://github.com/wwmoraes/userscripts/issues
// @contributionURL https://github.com/wwmoraes/userscripts
// @updateURL       https://openuserjs.org/meta/wwmoraes/Blackboard.meta.js
// @downloadURL     https://openuserjs.org/src/scripts/wwmoraes/Blackboard.js
// ==OpenUserJS==
// @author          wwmoraes
// ==/OpenUserJS==
// @match           https://*.blackboard.com/**/Flipping_book/**/basic-html/*
// @grant           none
// ==/UserScript==

/* global BasicPage, BASIC_PAGE */

(function() {
    'use strict';

    RegExp.escape = function(string) {
        return string.replace(/[-/\\^$*+?.()|[\]{}]/g, '\\$&')
    };

    function matchURL(url){
        var re = new RegExp("^"+RegExp.escape(url).replace(/(\\\*)+/g,".*?")+"$");
        return location.href.match(re) !== null;
    }


    if(matchURL("https://*.blackboard.com/**/Flipping_book/**/basic-html/*")){
        // Adds a method to zoom to width
        BasicPage.prototype.zoomToWidth = function(){
            var maxZoom = (this._getWindowWidth() - 100) / this._getFitScreenSizes(this.pageRect.width, this.pageRect.height).width;
            this.currentZoom = maxZoom;
            this._setSizes();
            this._fontCorrection();
        };

        // Zoom to Width on page load
        BASIC_PAGE.zoomToWidth();
    }
})();