osu-web

Library to modify static and dynamic components of osu web pages

Tento skript by nemal byť nainštalovaný priamo. Je to knižnica pre ďalšie skripty, ktorú by mali používať cez meta príkaz // @require https://update.greasyfork.org/scripts/473977/1249295/osu-web.js 

// ==UserScript==
// @name         osu-web
// @namespace    osu
// @version      1.1.6
// @description  Library to modify static and dynamic components of osu web pages
// @author       Magnus Cosmos
// ==/UserScript==

let self;
try {
    self = unsafeWindow;
} catch (err) {
    self = window;
}

// Utils
self.isNonEmptyObj = self.isNonEmptyObj || ((obj) => {
    if (obj === null || (typeof obj !== "function" && typeof obj !== "object")) {
        return false;
    }
    for (const _key in obj) {
        return true;
    }
    return false;
});

self.loaded = self.loaded || ((selector, parent = document, options = { childList: true }) => {
    return new Promise((resolve) => {
        const el = parent.querySelector(selector);
        if (el) {
            resolve(el);
        } else {
            new MutationObserver(function (_mutations, observer) {
                const el = parent.querySelector(selector);
                if (el) {
                    resolve(el);
                    observer = observer ? observer : this;
                    observer.disconnect();
                }
            }).observe(parent, options);
        }
    });
});

// Classes
self.Webpack = self.Webpack || (function () {
    "use strict";
    let _instance;
    const inject = (entryPoint, data) => {
        try {
            self[entryPoint].push(data);
        } catch (err) {
            throw new Error(`Injection failed: ${err.message}`);
        }
    }
    class Webpack {
        constructor(options) {
            if (_instance) {
                return _instance;
            }
            _instance = this;
            this.modules = {};
            let { moduleId, chunkId, entryPoint } = options || {};
            moduleId = moduleId || Math.random().toString(36).substring(2, 6);
            chunkId = chunkId || Math.floor(101 + Math.random() * 899);
            entryPoint = entryPoint || "webpackJsonp";
            const data = [
                [chunkId],
                {
                    [moduleId]: (_module, _exports, require) => {
                        for (const key of Object.keys(require.m)) {
                            const exports = require(key);
                            if (self.isNonEmptyObj(exports)) {
                                this.modules[key] = exports;
                            }
                        }
                    },
                },
                (require) => {
                    require(require.s = moduleId);
                },
            ];
            inject(entryPoint, data);
        }
    }
    return Webpack;
}());

self.OsuWeb = self.OsuWeb || (function () {
    "use strict";
    let _instance;
    const _static = [];
    const _dynamic = [];
    const _before = {};
    const _after = {};
    const _keys = [];
    const appendStyle = (function () {
        const style = document.querySelector("#osu-web");
        if (!(style || this.style)) {
            this.style = document.createElement("style");
            this.style.id = "osu-web";
            document.head.append(this.style);
        }
    });
    const getTurboLinks = (function () {
        for (const id in this.webpack.modules) {
            const exports = this.webpack.modules[id];
            if ("controller" in exports) {
                this.turbolinks = exports;
                return;
            }
        }
    });
    const getReactModules = (function () {
        const reactModules = new Set();
        for (const id in this.webpack.modules) {
            const exports = this.webpack.modules[id];
            if ("__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED" in exports) {
                reactModules.add(exports);
            }
        }
        [this.React, this.ReactDOM] = reactModules;
    });
    const modify = ((obj, fn, key) => {
        const oldFn = obj[fn];
        obj[fn] = function () {
            beforeFn(key, arguments);
            const r = oldFn.apply(this, arguments);
            afterFn(key, arguments, r);
            return r;
        };
    });
    const beforeFn = ((key, args) => {
        const arr = _before[key] || [];
        for (const fn of arr) {
            fn(args);
        }
    });
    const afterFn = ((key, args, r) => {
        const arr = _after[key] || [];
        for (const fn of arr) {
            fn(args, r);
        }
    });
    const modifyFn = ((obj, fn, key, before, after) => {
        if (!_keys.includes(key)) {
            _keys.push(key);
            _before[key] = [];
            _after[key] = [];
            modify(obj, fn, key);
        }
        if (before) {
            _before[key].push(before);
        }
        if (after) {
            _after[key].push(after);
        }
    });
    const init = (function (body) {
        this.webpack = new self.Webpack({entryPoint: "webpackChunk"});
        this.modifyFn = modifyFn;
        getTurboLinks.call(this);
        getReactModules.call(this);
        appendStyle.call(this);
        for (const fn of _static) {
            fn.call(this, body);
        }
        const controller = this.turbolinks.controller;
        modifyFn(controller, "render", "turbolinks.render", null, (args, r) => {
            for (const fn of _static) {
                fn.call(this, r.newBody);
            }
        });
        for (const fn of _dynamic) {
            fn.call(this);
        }
    });
    class OsuWeb {
        constructor(staticFn, dynamicFn) {
            if (staticFn) {
                _static.push(staticFn);
            }
            if (dynamicFn) {
                _dynamic.push(dynamicFn);
            }
            if (_instance) {
                return _instance;
            }
            _instance = this;
            self.loaded("html", document).then((html) => {
                self.loaded("body", html).then((body) => {
                    init.call(_instance, body);
                });
            });
        }

        addStyle(css) {
            this.style.innerHTML += `\n${css}`;
        }
    }
    return OsuWeb;
}());