简易的 Tampermonkey 脚本配置库
当前为
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.gf.qytechs.cn/scripts/470224/1428783/Tampermonkey%20Config.js
// ==UserScript==
// @name Tampermonkey Config
// @name:zh-CN Tampermonkey 配置
// @license gpl-3.0
// @namespace http://tampermonkey.net/
// @version 0.8.1
// @description Simple Tampermonkey script config library
// @description:zh-CN 简易的 Tampermonkey 脚本配置库
// @author PRO
// @match *
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_deleteValue
// @grant GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// ==/UserScript==
const GM_config_event = "GM_config_event"; // Compatibility with old versions
class GM_config {
/**
* The version of the GM_config library
*/
static get version() {
return "0.8.1";
}
/**
* Built-in processors for user input
* @type {Object<string, Function>}
*/
static #builtin_processors = {
same: (v) => v,
not: (v) => !v,
int: (s) => {
const value = parseInt(s);
if (isNaN(value)) throw `Invalid value: ${s}, expected integer!`;
return value;
},
int_range: (s, min_s, max_s) => {
const value = parseInt(s);
if (isNaN(value)) throw `Invalid value: ${s}, expected integer!`;
const min = (min_s === "") ? -Infinity : parseInt(min_s);
const max = (max_s === "") ? +Infinity : parseInt(max_s);
if (min !== NaN && value < min) throw `Invalid value: ${s}, expected integer >= ${min}!`;
if (max !== NaN && value > max) throw `Invalid value: ${s}, expected integer <= ${max}!`;
return value;
},
float: (s) => {
const value = parseFloat(s);
if (isNaN(value)) throw `Invalid value: ${s}, expected float!`;
return value;
},
float_range: (s, min_s, max_s) => {
const value = parseFloat(s);
if (isNaN(value)) throw `Invalid value: ${s}, expected float!`;
const min = (min_s === "") ? -Infinity : parseFloat(min_s);
const max = (max_s === "") ? +Infinity : parseFloat(max_s);
if (min !== NaN && value < min) throw `Invalid value: ${s}, expected float >= ${min}!`;
if (max !== NaN && value > max) throw `Invalid value: ${s}, expected float <= ${max}!`;
return value;
},
};
/**
* Built-in formatters for user input
* @type {Object<string, Function>}
*/
static #builtin_formatters = {
normal: (name, value) => `${name}: ${value}`,
boolean: (name, value) => `${name}: ${value ? "✔" : "✘"}`,
};
/**
* The proxied config object, to be initialized in the constructor
*/
proxy = {};
/**
* Whether to show debug information
* @type {boolean}
*/
debug = false;
/**
* The config description object, to be initialized in the constructor
*/
#desc = {};
/**
* The built-in input functions
* @type {Object<string, Function>}
*/
#builtin_inputs = {
current: (prop, orig) => orig,
prompt: (prop, orig) => {
const s = prompt(`🤔 New value for ${this.#desc[prop].name}:`, orig);
return s === null ? orig : s;
},
};
/**
* A mapping for the registered menu items, from property to menu id
*/
#registered = {};
/**
* The constructor of the GM_config class
* @param {Object} desc The config description object
* @param {Object} [options] Optional settings
* @param {boolean} [options.immediate=true] Whether to register menu items immediately
* @param {boolean} [options.debug=false] Whether to show debug information
*/
constructor(desc, options) { // Register menu items based on given config description
// Calc true default value
const $default = Object.assign({
input: "prompt",
processor: "same",
formatter: "normal"
}, desc["$default"] ?? {});
Object.assign(this.#desc, desc);
delete this.#desc.$default;
// Complete desc
for (const key in this.#desc) {
this.#desc[key] = Object.assign({}, $default, this.#desc[key]);
}
// Proxied config
this.proxy = new Proxy(this.#desc, {
get: (desc, prop) => {
return this.get(prop);
},
set: (desc, prop, value) => {
return this.set(prop, value);
}
});
// Register menu items
if (window === window.top) {
if (options?.immediate ?? true) {
this.#register();
} else {
// Register menu items after user clicks "Show configuration"
const id = GM_registerMenuCommand("Show configuration", () => {
this.#register();
}, {
autoClose: false,
title: "Show configuration options for this script"
});
this.#log(`+ Registered menu command: prop="Show configuration", id=${id}`);
this.#registered[null] = id;
}
this.addListener((e) => { // Auto update menu items
if (e.detail.type === "set" && e.detail.before !== e.detail.after) {
this.#log(`🔧 "${e.detail.prop}" changed from ${e.detail.before} to ${e.detail.after}`);
const id = this.#registered[e.detail.prop];
if (id !== undefined) {
this.#register_item(e.detail.prop);
} else {
this.#log(`+ Skipped updating menu since it's not registered: prop="${e.detail.prop}"`);
}
} else if (e.detail.type === "get") {
this.#log(`🔍 "${e.detail.prop}" requested, value is ${e.detail.after}`);
}
});
}
this.debug = options?.debug ?? this.debug;
}
/**
* Get the value of a property
* @param {string} prop The property name
* @returns {any} The value of the property
*/
get(prop) {
// Return stored value, else default value
const value = this.#get(prop);
// Dispatch get event
this.#dispatch({
type: "get",
prop: prop,
before: value,
after: value
});
return value;
}
/**
* Set the value of a property
* @param {string} prop The property name
* @param {any} value The value to be set
* @returns {boolean} Whether the value is set successfully
*/
set(prop, value) {
const before = this.#get(prop);
// Store value
const default_value = this.#desc[prop].value;
if (value === default_value && typeof GM_deleteValue === "function") {
GM_deleteValue(prop); // Delete stored value if it's the same as default value
this.#log(`🗑️ "${prop}" deleted`);
} else {
GM_setValue(prop, value);
}
// Dispatch set event
this.#dispatch({
type: "set",
prop: prop,
before: before,
after: value
});
return true;
}
/**
* Sets up a function that will be called whenever config is accessed or modified
* @param {null | Object | Function} listener The object that receives a notification (an object that implements the `Event` interface) when an event of the specified type occurs. This must be `null`, an object with a `handleEvent()` method, or a JavaScript function
* @param {Object} [options] An object that specifies characteristics about the event listener
* @param {boolean} [options.capture=false] A boolean value indicating that events of this type will be dispatched to the registered `listener` before being dispatched to any `EventTarget` beneath it in the DOM tree
* @param {boolean} [options.once=false] A boolean value indicating that the `listener` should be invoked at most once after being added. If `true`, the `listener` would be automatically removed when invoked
* @param {boolean} [options.passive=false] A boolean value that, if `true`, indicates that the function specified by listener will never call `preventDefault()`. If a passive listener does call preventDefault(), the user agent will do nothing other than generate a console warning
* @param {AbortSignal} [options.signal] An `AbortSignal`. The listener will be removed when the given `AbortSignal` object's `abort()` method is called
*/
addListener(listener, options) {
window.top.addEventListener(GM_config_event, listener, options);
}
/**
* Removes an event listener previously registered with `addListener()`
* @param {null | Object | Function} listener The object that receives a notification (an object that implements the `Event` interface) when an event of the specified type occurs. This must be `null`, an object with a `handleEvent()` method, or a JavaScript function
* @param {Object} [options] An object that specifies characteristics about the event listener
* @param {boolean} [options.capture=false] A boolean value indicating that events of this type will be dispatched to the registered `listener` before being dispatched to any `EventTarget` beneath it in the DOM tree
* @param {boolean} [options.once=false] A boolean value indicating that the `listener` should be invoked at most once after being added. If `true`, the `listener` would be automatically removed when invoked
* @param {boolean} [options.passive=false] A boolean value that, if `true`, indicates that the function specified by listener will never call `preventDefault()`. If a passive listener does call preventDefault(), the user agent will do nothing other than generate a console warning
* @param {AbortSignal} [options.signal] An `AbortSignal`. The listener will be removed when the given `AbortSignal` object's `abort()` method is called
*/
removeListener(listener, options) {
window.top.removeEventListener(GM_config_event, listener, options);
}
/**
* Get the value of a property (only for internal use; won't trigger events)
* @param {string} prop The property name
* @returns {any} The value of the property
*/
#get(prop) {
return GM_getValue(prop, this.#desc[prop].value);
}
/**
* Log a message if debug is enabled
* @param {...any} args The message to log
*/
#log(...args) {
if (this.debug) {
console.log("[GM_config]", ...args);
}
}
/**
* Dispatches the `GM_config_event` event
* @param {Object} detail The detail object
* @returns {boolean} Always `true`
*/
#dispatch(detail) {
const event = new CustomEvent(GM_config_event, {
detail: detail
});
return window.top.dispatchEvent(event);
}
/**
* Register menu items
*/
#register() {
// Unregister old menu items
for (const prop in this.#registered) {
const id = this.#registered[prop];
GM_unregisterMenuCommand(id);
delete this.#registered[prop];
this.#log(`- Unregistered menu command: prop="${prop}", id=${id}`);
}
for (const prop in this.#desc) {
this.#registered[prop] = this.#register_item(prop);
}
}
/**
* (Re-)register a single menu item, return its menu id
* @param {string} prop The property
*/
#register_item(prop) {
const name = this.#desc[prop].name;
const orig = this.#get(prop);
const input = this.#desc[prop].input;
const input_func = typeof input === "function" ? input : this.#builtin_inputs[input];
const formatter = this.#desc[prop].formatter;
const formatter_func = typeof formatter === "function" ? formatter : GM_config.#builtin_formatters[formatter];
const option = {
accessKey: this.#desc[prop].accessKey,
autoClose: this.#desc[prop].autoClose,
title: this.#desc[prop].title,
id: this.#registered[prop],
};
const id = GM_registerMenuCommand(formatter_func(name, orig), () => {
let value;
try {
value = input_func(prop, orig);
const processor = this.#desc[prop].processor;
if (typeof processor === "function") { // Process user input
value = processor(value);
} else if (typeof processor === "string") {
const parts = processor.split("-");
const processor_func = GM_config.#builtin_processors[parts[0]];
if (processor_func !== undefined) // Process user input
value = processor_func(value, ...parts.slice(1));
else // Unknown processor
throw `Unknown processor: ${processor}`;
} else {
throw `Unknown processor format: ${typeof processor}`;
}
} catch (error) {
alert("⚠️ " + error);
return;
}
if (value !== orig) {
this.set(prop, value);
}
}, option);
this.#log(`+ Registered menu command: prop="${prop}", id=${id}, option=`, option);
return id;
}
}
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