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Key-Based Config

A script for interfacing with my Key-Based Config UI.

当前为 2021-08-01 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/419978/956314/Key-Based%20Config.js 

  1. // ==UserScript==
  2. // @name        Key-Based Config
  3. // @author      Callum Latham <callumtylerlatham@gmail.com> (https://github.com/ctl2/key-based-config)
  4. // @exclude     *
  5. // @description A script for interfacing with my Key-Based Config UI.
  6. // ==/UserScript==
  7.  
  8. let iframeExists = false;
  9.  
  10. function kbcConfigure(storageKey, title, metaTree) {
  11.     return new Promise((resolve, reject) => {
  12.         if (iframeExists) {
  13.             reject(new Error("A key-based-config iFrame already exists."));
  14.         } else if (typeof GM.getValue !== "function" || typeof GM.setValue !== "function") {
  15.             reject(new Error("The key-based config script requires GM.getValue and GM.setValue permissions."));
  16.         } else {
  17.             iframeExists = true;
  18.             const kbcSrc = "https://callumlatham.com/key-based-config/";
  19.  
  20.             // Make iFrame
  21.             let iframe = document.createElement("iframe");
  22.             iframe.src = kbcSrc;
  23.             iframe.style.position = "fixed";
  24.             iframe.style.height = "100vh";
  25.             iframe.style.width = "100vw";
  26.  
  27.             // Listen for iFrame communication
  28.             window.addEventListener("message", async (message) => {
  29.                 switch (message.data.event) {
  30.                     case "open":
  31.                         // Pass initilisation data
  32.                         const valueForest = await GM.getValue(storageKey);
  33.                         iframe.contentWindow.postMessage({
  34.                             title: title,
  35.                             metaTree: metaTree,
  36.                             valueForest: valueForest === undefined ? [] : valueForest
  37.                         }, "*");
  38.                         break;
  39.                     case "change":
  40.                         // Update stored value
  41.                         GM.setValue(storageKey, message.data.valueForest);
  42.                         break;
  43.                     case "close":
  44.                         // Close iFrame
  45.                         iframeExists = false;
  46.                         iframe.remove();
  47.                         // Resolve promise
  48.                         resolve(message.data.valueForest);
  49.                         break;
  50.                     default:
  51.                         // No need to error the promise here; I'm probably just observing a message from another script
  52.                         console.warn("Unrecognised message 'event' value observed by key-based config script: '" + message.data.type + "'");
  53.                 }
  54.             });
  55.  
  56.         }
  57.  
  58.     });
  59.  
  60. }