Edge Local File Enhancer

Enhance the experience of viewing local files on Edge.

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

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

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Edge Local File Enhancer
// @namespace    http://tampermonkey.net/
// @version      0.1.5
// @description  Enhance the experience of viewing local files on Edge.
// @author       PRO
// @match        file:///*/
// @icon         data:image/png;base64,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
// @grant        none
// @run-at       document-end
// @license      gpl-3.0
// ==/UserScript==

(function() {
    'use strict';
    // Helper functions
    const path = location.href;
    if (!path.startsWith("file:///") || !path.endsWith("/")) return;
    const debug = false;
    const log = debug ? console.log.bind(console, "[ELFE]") : () => {};
    const $ = document.querySelector.bind(document);
    const $$ = document.querySelectorAll.bind(document);
    const getModifier = (e) => (e.ctrlKey << 2 | e.shiftKey << 1 | e.altKey);
    const hasModifier = (e, test = 0b111) => Boolean(getModifier(e) & test);
    const modifierDict = (e) => {
        return {
            "button": e.button || 0,
            "ctrlKey": e.ctrlKey,
            "shiftKey": e.shiftKey,
            "altKey": e.altKey,
            "bubble": false,
        }
    };

    // CSS
    const header = $("h1#header");
    const css = document.createElement("style");
    css.id = "elfe-css";
    css.textContent = `
        html { scroll-behavior: smooth; }
        h1#header > a { color: initial; text-decoration: none; transition: color 0.2s ease-in-out; }
        h1#header > a:hover { color: -webkit-link; }
        table { margin: 0.5rem 0; width: auto; }
        table td, table th { padding: 0.3rem 0.5rem; vertical-align: middle; }
        div#parentDirLinkBox { display: none !important; }
        #parentDir { padding: 0 0.5em 0; }
        thead th { border-left: 1px solid gray; border-right: 1px solid gray; }
        thead th, tbody tr { transition: background-color 0.2s ease-in-out; cursor: pointer; }
        thead th:hover, tbody tr:hover { background-color: #333333; }
        tbody tr.selected { background-color: #4d4d4d; }
    `;
    $("head").appendChild(css);

    // Navigation
    const delimeter = header.textContent.includes("\\") ? "\\" : "/";
    const split = header.textContent.split(delimeter);
    log(split);
    const parts = split.slice(0, -1);
    header.innerHTML = '<a href="../" id="parentDir">↑</a>'
        + parts.map((part, i) =>
            `<a href="${parts.slice(0, i + 1).join(delimeter)}${delimeter}">${part}</a>`
        ).join(delimeter) + delimeter + split.slice(-1)[0];

    // Table
    const rows = $$("tbody tr");
    rows.forEach(row => {
        row.addEventListener("click", e => {
            if (e.button != 0) return true;
            log(e);
            e.preventDefault();
            row.querySelector("a").dispatchEvent(new MouseEvent("click", modifierDict(e)));
            return true;
        });
    });
    $$("td").forEach(td => {
        td.title = td.getAttribute("data-value") || td.textContent;
    });

    // Shortcuts
    const parentDir = $("#parentDir");
    const count = rows.length;
    var selected = 0;
    function select(i) {
        rows[selected].classList.remove("selected");
        selected = i;
        rows[selected].classList.add("selected");
        rows[selected].scrollIntoView({ block: "center" });
    }
    function delta(d) {
        select((selected + d + count) % count);
    }
    document.addEventListener("keydown", e => {
        switch (e.key) {
            case "ArrowUp":
                e.preventDefault();
                if (e.altKey && parentDir) { // Go to parent directory
                    parentDir.click();
                    break;
                }
                if (e.ctrlKey) { // Scroll up
                    window.scrollBy({ top: -window.innerHeight / 2});
                    break;
                }
                if (count == 0) break;
                if (e.shiftKey) { // Select top
                    select(0);
                    break;
                }
                // Select previous
                delta(-1);
                break;
            case "ArrowDown":
                e.preventDefault();
                if (e.ctrlKey) { // Scroll down
                    window.scrollBy({ top: window.innerHeight / 2});
                    break;
                }
                if (count == 0) break;
                if (e.shiftKey) { // Select bottom
                    select(count - 1);
                    break;
                }
                // Select next
                delta(1);
                break;
            case "ArrowLeft":
                if (hasModifier(e)) break; // Try to be none-intrusive
                history.back(); break;
            case "ArrowRight":
                if (hasModifier(e)) break;
                history.forward(); break;
            case "Enter": {
                if (count == 0) break;
                e.preventDefault();
                const link = rows[selected].querySelector("a");
                link.dispatchEvent(new MouseEvent("click", modifierDict(e)));
                break;
            }
            default: break;
        }
    });
})();