MEGA Print Working Directory

Show current location in title when using MEGA cloud storage.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name         MEGA Print Working Directory
// @namespace    net.myitian.js.mega.pwd
// @description  Show current location in title when using MEGA cloud storage.
// @source       https://github.com/Myitian/MEGA-PWD
// @author       Myitian
// @license      MIT
// @version      0.3
// @match        https://mega.nz/*
// @grant        GM_registerMenuCommand
// ==/UserScript==

/** @param {string[]} selectors */
function simpleCallback(...selectors) {
    const title = document.title.trim();
    if (title.length === 0) {
        return;
    }
    const dlkey = document.querySelector(".dlkey-dialog:not(.hidden)");
    if (dlkey) {
        /** @type {HTMLElement} */
        const element = dlkey.querySelector("#dlkey-dialog-title");
        mName = element?.innerText.replace("\n", "") ?? "";
    } else {
        mName = "";
        for (const selector of selectors) {
            /** @type {HTMLElement} */
            const element = document.querySelector(selector);
            if (element) {
                if (mName) {
                    mName += "/";
                }
                mName += element.innerText.trim().replace("\n", "");
            }
        }
    }
    if (!mName) {
        return;
    }
    if (baseTitle === null || /^[^\|]+MEGA[^\|]+$/.test(title)) {
        baseTitle = title;
    }
    const newTitle = `${mName} | ${baseTitle}`.trim();
    if (title !== newTitle) {
        document.title = newTitle;
    }
}
function folderCallback() {
    const title = document.title.trim();
    if (title.length === 0) {
        return;
    }
    const dlkey = document.querySelector(".dlkey-dialog:not(.hidden)");
    if (dlkey) {
        /** @type {HTMLElement} */
        const dlkeyTitle = dlkey.querySelector("#dlkey-dialog-title");
        mName = dlkeyTitle?.innerText.replace("\n", "") ?? "";
    } else {
        mName = "";
        /** @type {NodeListOf<HTMLElement>} */
        const es = document.querySelectorAll(".fm-right-files-block .breadcrumb-dropdown span");
        if (es.length > 0) {
            for (const e of es) {
                mName = `${e.innerText.trim()}/${mName}`;
            }
            /** @type {HTMLElement} */
            const element = document.querySelector(".fm-right-files-block .fm-breadcrumbs-block a:last-child .simpletip-tc");
            mName += element?.innerText;
        } else {
            /** @type {NodeListOf<HTMLElement>} */
            const es2 = document.querySelectorAll(".fm-right-files-block .fm-breadcrumbs-block .simpletip-tc");
            for (let i = 0; i < es2.length; i++) {
                mName += es2[i].innerText.trim();
                if (i < es2.length - 1) {
                    mName += "/";
                }
            }
        }
    }
    if (!mName) {
        return;
    }
    if (baseTitle === null || /^[^\|]+MEGA[^\|]+$/.test(title)) {
        baseTitle = title;
    }
    const newTitle = `${mName} | ${baseTitle}`.trim();
    if (title !== newTitle) {
        document.title = newTitle;
    }
}
/** @param {number} t */
function delay(t) {
    return new Promise((rs, _) => setTimeout(rs, t));
}

/** @typedef {"password"|"file"|"folder"|"fm"|"fm-chat"|"fm-contacts"|"fm-pwm"|"fm-account"|"fm-shares"|"fm-media"|"fm-dashboard"|null} Mode */

/** @type {MutationObserverInit} */
const OBSERVER_CONFIG = { attributes: true, childList: true, subtree: true };
GM_registerMenuCommand("PWD", () => prompt("Value", mName));
let forceRefresh = false;
let mName = null;
let baseTitle = null;
/** @type {MutationObserver|null} */
let observer = null;
/** @type {Mode} */
let prevMode = null;

window.addEventListener("hashchange", e => main(new URL(e.newURL)));
const originalPushState = history.pushState;
history.pushState = (data, unused, url) => {
    main(new URL(url, window.location.href));
    return originalPushState.call(history, data, unused, url);
}
main(window.location);

/** @param {URL|Location} url */
async function main(url) {
    /** @type {Mode} */
    let mode = null;
    if (url.hash.startsWith("#P!")) {
        mode = "password";
    } else if (url.pathname.startsWith("/file/")) {
        mode = "file";
    } else if (url.pathname.startsWith("/folder/")
        || url.pathname.match(/^\/fm(?:\/(?:[0-9A-Za-z]{8})?)?$/)) {
        mode = "folder";
    } else if (url.pathname.startsWith("/fm/chat/contacts")) {
        mode = "fm-contacts";
    } else if (url.pathname.startsWith("/fm/chat")) {
        mode = "fm-chat";
    } else if (url.pathname.startsWith("/fm/pwm")) {
        mode = "fm-pwm";
    } else if (url.pathname.startsWith("/fm/account")) {
        mode = "fm-account";
    } else if (url.pathname.startsWith("/fm/shares")
        || url.pathname.startsWith("/fm/out-shares")
        || url.pathname.startsWith("/fm/public-links")
        || url.pathname.startsWith("/fm/file-requests")) {
        mode = "fm-shares";
    } else if (url.pathname.startsWith("/fm/photos")
        || url.pathname.startsWith("/fm/albums")) {
        mode = "fm-media";
    } else if (url.pathname.startsWith("/fm/dashboard")) {
        mode = "fm-dashboard";
    } else if (url.pathname.startsWith("/fm/")) {
        mode = "fm";
    }
    if (mode !== prevMode || forceRefresh) {
        forceRefresh = false;
        observer?.disconnect();
        console.debug("[MEGA-PWD]", "SwitchMode:", prevMode, "->", mode);
        prevMode = mode;
        if (mode !== null) {
            /** @type {{callback:()=>void,selector:string}|null} */
            let config = null;
            switch (mode) {
                case "password":
                    config = {
                        selector: "#password-dialog-title",
                        callback: () => simpleCallback("#password-dialog-title")
                    };
                    break;
                case "file":
                    config = {
                        selector: ".title-block",
                        callback: () => simpleCallback(".title-block")
                    };
                    break;
                case "folder":
                    config = {
                        selector: ".fm-right-files-block .fm-breadcrumbs-wrapper",
                        callback: folderCallback
                    };
                    break;
                case "fm-contacts":
                    config = {
                        selector: ".contacts-navigation",
                        callback: () => simpleCallback(".contacts-navigation .active")
                    };
                    break;
                case "fm-chat":
                    config = {
                        selector: ".lhp-nav",
                        callback: () => simpleCallback(".lhp-nav-container.active")
                    };
                    break;
                case "fm-pwm":
                    config = {
                        selector: ".top-nav .primary-text",
                        callback: () => simpleCallback(".top-nav .primary-text")
                    };
                    break;
                case "fm-account":
                    config = {
                        selector: ".account .lp-content-wrap",
                        callback: () => simpleCallback(".account .lp-header", ".account .settings-button.active .head-title")
                    };
                    break;
                case "fm-shares":
                    config = {
                        selector: ".shares-tabs-bl",
                        callback: () => simpleCallback(".mega-component.active .primary-text", ".shares-tab-lnk.active")
                    };
                    break;
                case "fm-media":
                    config = {
                        selector: "#media-tabs",
                        callback: () => simpleCallback(".mega-component.active .primary-text", "#media-tabs .active")
                    };
                    break;
                case "fm-dashboard":
                    config = {
                        selector: ".to-my-profile .primary-text",
                        callback: () => simpleCallback(".to-my-profile .primary-text")
                    };
                    break;
                case "fm":
                    config = {
                        selector: ".menu.ps",
                        callback: () => simpleCallback(".mega-component.active .primary-text")
                    };
                    break;
            }
            let element = null;
            observer = new MutationObserver(config.callback);
            if (mode === "file" || mode === "folder") {
                while (!(element = document.querySelector(".dlkey-dialog"))) {
                    await delay(50);
                }
                config.callback();
                observer.observe(element, OBSERVER_CONFIG);
                if (mode === "file") {
                    const largeChangeObserver = new MutationObserver(records => {
                        if (records.find(
                            it => Array.from(it.removedNodes).find(
                                iit => iit instanceof Element && iit.classList.contains("bottom-page")))) {
                            largeChangeObserver.disconnect();
                            forceRefresh = true;
                        }
                    });
                    largeChangeObserver.observe(document.querySelector("#startholder"), OBSERVER_CONFIG);
                }
            }
            while (!(element = document.querySelector(config.selector))) {
                await delay(50);
            }
            config.callback();
            observer.observe(document.querySelector("title"), OBSERVER_CONFIG);
            observer.observe(element, OBSERVER_CONFIG);
        }
    }
}