UserscriptAPI

My API for userscripts.
As of 22.09.2021. See ბოლო ვერსია.
ეს სკრიპტი არ უნდა იყოს პირდაპირ დაინსტალირებული. ეს ბიბლიოთეკაა, სხვა სკრიპტებისთვის უნდა ჩართეთ მეტა-დირექტივაში // @require https://update.greatest.deepsurf.us/scripts/409641/972855/UserscriptAPI.js.
Ask a question, post a review, or report the script.
Wrap lines
/* exported UserscriptAPI */
/**
 * UserscriptAPI
 *
 * 需要引入模块方可工作，详见 `README.md`。
 * @version 2.1.1.20210921
 * @author Laster2800
 * @see {@link https://gitee.com/liangjiancang/userscript/tree/master/lib/UserscriptAPI UserscriptAPI}
 */
class UserscriptAPI {
  /** 可访问模块 */
  static #modules = {}
  /** 待添加模块样式队列 */
  #moduleCssQueue = []
 
  /**
   * @param {Object} [options] 选项
   * @param {string} [options.id='default'] 标识符
   * @param {string} [options.label] 日志标签，为空时不设置标签
   * @param {Object} [options.wait] `wait` API 默认选项（默认值见构造器代码）
   * @param {Object} [options.wait.condition] `wait` 条件 API 默认选项
   * @param {Object} [options.wait.element] `wait` 元素 API 默认选项
   * @param {number} [options.fadeTime=400] UI 渐变时间
   */
  constructor(options) {
    this.options = {
      id: 'default',
      label: null,
      fadeTime: 400,
      ...options,
      wait: {
        condition: {
          callback: result => api.logger.info(result),
          interval: 100,
          timeout: 10000,
          onTimeout: function() {
            api.logger[this.stopOnTimeout ? 'error' : 'warn'](['TIMEOUT', 'executeAfterConditionPassed', options])
          },
          stopOnTimeout: true,
          stopCondition: null,
          onStop: () => api.logger.error(['STOP', 'executeAfterConditionPassed', options]),
          stopInterval: 50,
          stopTimeout: 0,
          onError: e => api.logger.error(['ERROR', 'executeAfterConditionPassed', options, e]),
          stopOnError: true,
          timePadding: 0,
          ...options?.wait?.condition,
        },
        element: {
          base: document,
          exclude: null,
          callback: el => api.logger.info(el),
          subtree: true,
          multiple: false,
          repeat: false,
          throttleWait: 100,
          timeout: 10000,
          onTimeout: function() {
            api.logger[this.stopOnTimeout ? 'error' : 'warn'](['TIMEOUT', 'executeAfterElementLoaded', options])
          },
          stopOnTimeout: false,
          stopCondition: null,
          onStop: () => api.logger.error(['STOP', 'executeAfterElementLoaded', options]),
          onError: e => api.logger.error(['ERROR', 'executeAfterElementLoaded', options, e]),
          stopOnError: true,
          timePadding: 0,
          ...options?.wait?.element,
        },
      },
    }
 
    const win = typeof unsafeWindow == 'undefined' ? window : unsafeWindow
    /** @type {UserscriptAPI} */
    let api = win[`_userscriptAPI_${this.options.id}`]
    if (api) {
      api.options = this.options
      return api
    }
    api = win[`_userscriptAPI_${this.options.id}`] = this
 
    /** @type {UserscriptAPIDom} */
    this.dom = this.#getModuleInstance('dom')
    /** @type {UserscriptAPIMessage} */
    this.message = this.#getModuleInstance('message')
    /** @type {UserscriptAPIWait} */
    this.wait = this.#getModuleInstance('wait')
    /** @type {UserscriptAPIWeb} */
    this.web = this.#getModuleInstance('web')
 
    if (!this.message) {
      this.message = {
        api: this,
        alert: this.base.alert,
        confirm: this.base.confirm,
        prompt: this.base.prompt,
      }
    }
 
    for (const css of this.#moduleCssQueue) {
      api.base.addStyle(css)
    }
  }
 
  /**
   * 注册模块
   * @param {string} name 模块名称
   * @param {Object} module 模块类
   */
  static registerModule(name, module) {
    this.#modules[name] = module
  }
  /**
   * 获取模块实例
   * @param {string} name 模块名称
   * @returns {Object} 模块实例，无对应模块时返回 `null`
   */
  #getModuleInstance(name) {
    const module = UserscriptAPI.#modules[name]
    return module ? new module(this) : null
  }
 
  /**
   * 初始化模块样式（仅应在模块构造器中使用）
   * @param {string} css 样式
   */
  initModuleStyle(css) {
    this.#moduleCssQueue.push(css)
  }
 
  /**
   * UserscriptAPIBase
   * @version 1.0.1.20210922
   */
  base = new class UserscriptAPIBase {
    /**
     * @param {UserscriptAPI} api `UserscriptAPI`
     */
    constructor(api) {
      this.api = api
    }
 
    /**
     * 添加样式
     * @param {string} css 样式
     * @param {Document} [doc=document] 文档
     * @returns {HTMLStyleElement} `<style>`
     */
    addStyle(css, doc = document) {
      const api = this.api
      const style = doc.createElement('style')
      style.className = `${api.options.id}-style`
      style.textContent = css
      const parent = doc.head || doc.documentElement
      if (parent) {
        parent.append(style)
      } else { // 极端情况下会出现，DevTools 网络+CPU 双限制可模拟
        api.wait?.waitForConditionPassed({
          condition: () => doc.head || doc.documentElement,
          timeout: 0,
        }).then(parent => parent.append(style))
      }
      return style
    }
 
    /**
     * 判断给定 URL 是否匹配
     * @param {RegExp | RegExp[]} regex 用于判断是否匹配的正则表达式，或正则表达式数组
     * @param {'OR' | 'AND'} [mode='OR'] 匹配模式
     * @returns {boolean} 是否匹配
     */
    urlMatch(regex, mode = 'OR') {
      let result = false
      const href = location.href
      if (Array.isArray(regex)) {
        if (regex.length > 0) {
          if (mode == 'AND') {
            result = true
            for (const ex of regex) {
              if (!ex.test(href)) {
                result = false
                break
              }
            }
          } else if (mode == 'OR') {
            for (const ex of regex) {
              if (ex.test(href)) {
                result = true
                break
              }
            }
          }
        }
      } else {
        result = regex.test(href)
      }
      return result
    }
 
    /**
     * 初始化 `urlchange` 事件
     * @see {@link https://stackoverflow.com/a/52809105 How to detect if URL has changed after hash in JavaScript}
     */
    initUrlchangeEvent() {
      if (!history._urlchangeEventInitialized) {
        const urlEvent = () => {
          const event = new Event('urlchange')
          // 添加属性，使其与 Tampermonkey urlchange 保持一致
          event.url = location.href
          return event
        }
        history.pushState = (f => function pushState() {
          const ret = Reflect.apply(f, this, arguments)
          window.dispatchEvent(new Event('pushstate'))
          window.dispatchEvent(urlEvent())
          return ret
        })(history.pushState)
        history.replaceState = (f => function replaceState() {
          const ret = Reflect.apply(f, this, arguments)
          window.dispatchEvent(new Event('replacestate'))
          window.dispatchEvent(urlEvent())
          return ret
        })(history.replaceState)
        window.addEventListener('popstate', () => {
          window.dispatchEvent(urlEvent())
        })
        history._urlchangeEventInitialized = true
      }
    }
 
    /**
     * 生成消抖函数
     * @param {Function} fn 目标函数
     * @param {number} [wait=0] 消抖延迟
     * @param {Object} [options] 选项
     * @param {boolean} [options.leading] 是否在延迟开始前调用目标函数
     * @param {boolean} [options.trailing=true] 是否在延迟结束后调用目标函数
     * @param {number} [options.maxWait=0] 最大延迟时间（非准确），`0` 表示禁用
     * @returns {Function} 消抖函数 `debounced`，可调用 `debounced.cancel()` 取消执行
     */
    debounce(fn, wait = 0, options = {}) {
      options = {
        leading: false,
        trailing: true,
        maxWait: 0,
        ...options,
      }
 
      let tid = null
      let start = null
      let execute = null
      let callback = null
 
      function debounced() {
        execute = () => {
          Reflect.apply(fn, this, arguments)
          execute = null
        }
        callback = () => {
          if (options.trailing) {
            execute?.()
          }
          tid = null
          start = null
        }
 
        if (tid) {
          clearTimeout(tid)
          if (options.maxWait > 0 && Date.now() - start > options.maxWait) {
            callback()
          }
        }
 
        if (!tid && options.leading) {
          execute?.()
        }
 
        if (!start) {
          start = Date.now()
        }
 
        tid = setTimeout(callback, wait)
      }
 
      debounced.cancel = function() {
        if (tid) {
          clearTimeout(tid)
          tid = null
          start = null
        }
      }
 
      return debounced
    }
 
    /**
     * 生成节流函数
     * @param {Function} fn 目标函数
     * @param {number} [wait=0] 节流延迟（非准确）
     * @returns {Function} 节流函数 `throttled`，可调用 `throttled.cancel()` 取消执行
     */
    throttle(fn, wait = 0) {
      return this.debounce(fn, wait, {
        leading: true,
        trailing: true,
        maxWait: wait,
      })
    }
 
    /**
     * 创建基础提醒对话框
     *
     * 若没有引入 `message` 模块，可使用 `api.message.alert()` 引用该方法。
     * @param {string} msg 信息
     */
    async alert(msg) {
      const label = this.api.options.label
      alert(`${label ? `${label}\n\n` : ''}${msg}`)
    }
 
    /**
     * 创建基础确认对话框
     *
     * 若没有引入 `message` 模块，可使用 `api.message.confirm()` 引用该方法。
     * @param {string} msg 信息
     * @returns {Promise<boolean>} 用户输入
     */
    async confirm(msg) {
      const label = this.api.options.label
      return confirm(`${label ? `${label}\n\n` : ''}${msg}`)
    }
 
    /**
     * 创建基础输入对话框
     *
     * 若没有引入 `message` 模块，可使用 `api.message.prompt()` 引用该方法。
     * @param {string} msg 信息
     * @param {string} [val] 默认值
     * @returns {Promise<string>} 用户输入
     */
    async prompt(msg, val) {
      const label = this.api.options.label
      return prompt(`${label ? `${label}\n\n` : ''}${msg}`, val)
    }
  }(this)
 
  /**
   * UserscriptAPILogger
   * @version 1.1.0.20210910
   */
  logger = new class UserscriptAPILogger {
    #logCss = `
      background-color: black;
      color: white;
      border-radius: 2px;
      padding: 2px;
      margin-right: 4px;
    `
 
    /**
     * @param {UserscriptAPI} api `UserscriptAPI`
     */
    constructor(api) {
      this.api = api
    }
 
    /**
     * 打印格式化日志
     * @param {*} message 日志信息
     * @param {'log' | 'warn' | 'error'} fn 日志函数名
     */
    #log(message, fn) {
      if (message === undefined) {
        message = '[undefined]'
      } else if (message === null) {
        message = '[null]'
      } else if (message === '') {
        message = '[empty string]'
      }
      const output = console[fn]
      const label = this.api.options.label
      if (label) {
        const type = typeof message == 'string' ? '%s' : '%o'
        output(`%c${label}%c${type}`, this.#logCss, '', message)
      } else {
        output(message)
      }
    }
 
    /**
     * 打印日志
     * @param {*} message 日志信息
     */
    info(message) {
      this.#log(message, 'log')
    }
 
    /**
     * 打印警告日志
     * @param {*} message 警告日志信息
     */
    warn(message) {
      this.#log(message, 'warn')
    }
 
    /**
     * 打印错误日志
     * @param {*} message 错误日志信息
     */
    error(message) {
      this.#log(message, 'error')
    }
  }(this)
}