Custom Background

Script for adding a custom background to the Pianoverse!

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Greasemonkey 油猴子Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Userscripts ,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         Custom Background
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Script for adding a custom background to the Pianoverse!
// @author       Hustandant
// @match        https://pianoverse.net/*
// @icon         https://avatars.githubusercontent.com/u/84928386
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    window.onload = function () {
        if(localStorage.getItem("background") === null)
            localStorage.setItem("background", JSON.stringify({show: true, url: "", location: "center", size: "cover"}));

        const backgroundWindow = document.createElement("div");
        backgroundWindow.classList.add("pv-background");
        document.body.appendChild(backgroundWindow);

        document.querySelector(".pv-background").innerHTML = `
             <dialog class="popup" modal>
                  <div class="header">
                       <div class="title">
                            <i class="fa fa-file-image"></i> Custom background
                       </div>
                       <div class="x">
                            <i class="fas fa-xmark"></i>
                       </div>
                  </div>
                  <div class="content">
                       <div class="container">
                            <div class="field">
                                 <label>Show custom background</label>
                                 <label class="toggle">
                                      <input type="checkbox" class="show-background" checked>
                                      <span class="slider"></span>
                                 </label>
                            </div>
                            <div class="field">
                                 <label><i class="fa-solid fa-link"></i> Background URL</label>
                                 <input class="input" id="background-input" type="text" placeholder="https://example/image.png">
                            </div>
                            <div class="field">
                                 <label><i class="fa-solid fa-map-pin"></i> Background position</label>
                                 <select class="background-position">
                                      <option value="center">Center</option>
                                      <option value="top">Top</option>
                                      <option value="bottom">Bottom</option>
                                 </select>
                            </div>
                            <div class="field">
                                 <label><i class="fa-solid fa-expand"></i> Background size</label>
                                 <select class="background-size">
                                      <option value="cover">Cover</option>
                                      <option value="auto">Auto</option>
                                      <option value="contain">Contain</option>
                                 </select>
                            </div>
                       </div>
                  <div class="footer"><hr>
                  <label>For questions, contact <a href="https://discordapp.com/users/709787711522996286/" target="_blank">Hustandant</a> in Discord</label><br>
                  <label>Custom Background (1.0)</label>
                  </div>
             </div>
        </dialog>`;

        const background = document.querySelector(".bg-canvas");
        const parent = document.querySelector("pv-header .right");
        const theme = document.querySelector("pv-header .mode");
        const backgroundButton = document.createElement("div");
        const icon = document.createElement("i");
        const showBackground = document.querySelector(".pv-background .show-background");
        const input = document.querySelector(".pv-background #background-input");
        const backgroundPosition = document.querySelector(".pv-background .background-position");
        const backgroundSize = document.querySelector(".pv-background .background-size");
        const closeBackgroundWindow = document.querySelector(".pv-background .x");

        backgroundButton.classList.add("background", "icon");
        backgroundButton.ariaLabel = "Background";
        backgroundButton.setAttribute("data-tooltip", "Background");

        icon.classList.add("fa", "fa-file-image");

        backgroundButton.append(icon);

        parent.insertBefore(backgroundButton, theme);

        input.value = readData().url;
        backgroundPosition.value = readData().location;
        backgroundSize.value = readData().size;
        showBackground.checked = readData().show;

        background.style.backgroundRepeat = "no-repeat";
        background.style.backgroundSize = backgroundSize.value;
        background.style.backgroundPosition = backgroundPosition.value;
        background.style.backgroundImage = showBackground.checked ? `url(${input.value})` : "url('')";

        input.addEventListener("change", function () {
            let settings = readData();

            settings.url = this.value;

            if(showBackground.checked) {
                background.style.backgroundImage = `url(${this.value})`;
            }

            saveData(settings)
        });

        showBackground.addEventListener("change", function () {
            let settings = readData();

            settings.show = this.checked;
            background.style.backgroundImage = this.checked ? `url(${input.value})` : "";

            saveData(settings);
        });

        backgroundPosition.addEventListener("change", function () {
            let settings = readData();

            settings.location = this.value;
            background.style.backgroundPosition = this.value;

            saveData(settings);
        });

        backgroundSize.addEventListener("change", function () {
            let settings = readData();

            settings.size = this.value;
            background.style.backgroundSize = this.value;

            saveData(settings);
        });

        backgroundButton.addEventListener("click", function () {
            document.querySelector(".pv-background dialog").showModal();
        });

        closeBackgroundWindow.addEventListener("click", function () {
            let popup = document.querySelector(".pv-background dialog");

            popup.setAttribute("closing", "");
            popup.addEventListener("animationend", ( () => {
                popup.removeAttribute("closing");
                popup.close();
            }), {
                once: !0
            });
        });

        function readData() {
            return JSON.parse(localStorage.getItem("background"));
        }

        function saveData(settings) {
            localStorage.setItem("background", JSON.stringify(settings));
        }
   }
})();