R4 Utils

R4 Utils Library

Tento skript by neměl být instalován přímo. Jedná se o knihovnu, kterou by měly jiné skripty využívat pomocí meta příkazu // @require https://update.greatest.deepsurf.us/scripts/482597/1301960/R4%20Utils.js

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name        R4 Utils
// @description R4 Utils Library
// @version     1.0.1
// ==/UserScript==
 
 
function R4Utils() {

    /* ------------------------------------------------- */
    /* --------------fromHTML--------------------------- */
    /* ------------------------------------------------- */

    function fromHTML(html, trim = true) {
        // Process the HTML string.
        html = trim ? html : html.trim();
        if (!html) return null;
      
        // Then set up a new template element.
        const template = document.createElement('template');
        template.innerHTML = html;
        const result = template.content.children;
      
        // Then return either an HTMLElement or HTMLCollection,
        // based on whether the input HTML had one or more roots.
        if (result.length === 1) return result[0];
        return result;
    }

    /* ------------------------------------------------- */
    /* --------------transliterate---------------------- */
    /* ------------------------------------------------- */

    function transliterate(word) {
        let answer = "";
        const a = {};

        a["Ё"] = "YO";
        a["Й"] = "I";
        a["Ц"] = "TS";
        a["У"] = "U";
        a["К"] = "K";
        a["Е"] = "E";
        a["Н"] = "N";
        a["Г"] = "G";
        a["Ш"] = "SH";
        a["Щ"] = "SCH";
        a["З"] = "Z";
        a["Х"] = "H";
        a["Ъ"] = "'";
        a["ё"] = "yo";
        a["й"] = "i";
        a["ц"] = "ts";
        a["у"] = "u";
        a["к"] = "k";
        a["е"] = "e";
        a["н"] = "n";
        a["г"] = "g";
        a["ш"] = "sh";
        a["щ"] = "sch";
        a["з"] = "z";
        a["х"] = "h";
        a["ъ"] = "'";
        a["Ф"] = "F";
        a["Ы"] = "I";
        a["В"] = "V";
        a["А"] = "A";
        a["П"] = "P";
        a["Р"] = "R";
        a["О"] = "O";
        a["Л"] = "L";
        a["Д"] = "D";
        a["Ж"] = "ZH";
        a["Э"] = "E";
        a["ф"] = "f";
        a["ы"] = "i";
        a["в"] = "v";
        a["а"] = "a";
        a["п"] = "p";
        a["р"] = "r";
        a["о"] = "o";
        a["л"] = "l";
        a["д"] = "d";
        a["ж"] = "zh";
        a["э"] = "e";
        a["Я"] = "Ya";
        a["Ч"] = "CH";
        a["С"] = "S";
        a["М"] = "M";
        a["И"] = "I";
        a["Т"] = "T";
        a["Ь"] = "'";
        a["Б"] = "B";
        a["Ю"] = "YU";
        a["я"] = "ya";
        a["ч"] = "ch";
        a["с"] = "s";
        a["м"] = "m";
        a["и"] = "i";
        a["т"] = "t";
        a["ь"] = "'";
        a["б"] = "b";
        a["ю"] = "yu";

        for (const i in word) {
            if (word.hasOwnProperty(i)) {
                answer += a[word[i]] === undefined ? word[i] : a[word[i]];
            }
        }
        return answer;
    }

    /* ------------------------------------------------- */
    /* --------------slugify---------------------------- */
    /* ------------------------------------------------- */

    function slugify(str) {
        return String(str)
            .normalize("NFKD") // split accented characters into their base characters and diacritical marks
            .replace(/[\u0300-\u036f]/g, "") // remove all the accents, which happen to be all in the \u03xx UNICODE block.
            .trim() // trim leading or trailing whitespace
            .toLowerCase() // convert to lowercase
            .replace(/[^a-z0-9 -]/g, "") // remove non-alphanumeric characters
            .replace(/\s+/g, "-") // replace spaces with hyphens
            .replace(/-+/g, "-"); // remove consecutive hyphens
    }

    /* ------------------------------------------------- */
    /* --------------executeLocation-------------------- */
    /* ------------------------------------------------- */

    class AsyncLock {
        constructor () {
            this.release = () => {}
            this.promise = Promise.resolve()
        }
    
        acquire () {
            this.promise = new Promise(resolve => this.release = resolve)
        }
    }

    const execute_location_lock = new AsyncLock();

    function executeLocation(func, vars = {}, prefix = "ExecuteLocation", lock = execute_location_lock) {
        return new Promise((resolve, reject) => {

            // Wait for the lock to be released
            lock.promise.then(() => {

                // Acquire the lock
                lock.acquire();

                try {
                    // Convert the function to a string of code
                    const funcString = `(${func.toString()})()`;

                    // Define a new CustomEvent that will be dispatched when the function finishes executing
                    const eventName = prefix + Math.random().toString(36).substring(7);

                    // Listen for the function executed event
                    document.addEventListener(eventName, (event) => {

                        resolve(event.detail.result);

                        // Release the lock
                        lock.release();
                    });

                    // Convert the vars object to a string of code that defines these variables
                    const varsString = Object.entries(vars).map(([name, value]) => {
                        return `var ${name} = ${JSON.stringify(value)};`;
                    }).join('');

                    // Use location.assign to execute the function in the global scope
                    // The function result is sent as a CustomEvent
                    location.assign(`javascript:(function() {
                        ${varsString}
                        const result = ${funcString};
                        const event = new CustomEvent('${eventName}', { detail: { result: result } });
                        document.dispatchEvent(event);
                    })();void(0)`);
                    
                } catch (e) {
                    
                    reject(e);

                    // Release the lock in case of an error
                    lock.release();

                }
            });
        });
    }

    return {
        fromHTML,
        transliterate,
        slugify,
        executeLocation,
    };
}