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Variables and Functions

Commonly used variables and functions

当前为 2021-06-24 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/428386/943654/Variables%20and%20Functions.js 

//jshint esversion: 6
//jshint asi: true

const url = new URL(location.href)
const page = (offset = 0) => url.pathname.split('/')[1 + offset]
const urlObj = url.searchParams
const domain = url.host

const setFname = str => {
    console.log(str)
    
    return str
}

const createBtn = (selector, count = 12) => {
    $(selector).append(`<button id="open-links" data-count="${count}">OpenLinks (${count})</button>`)
}

const ensureDomLoaded = callback => {
    if (['interactive', 'complete'].includes(document.readyState)) {
		callback()
		return
	}

	let triggered = false
	document.addEventListener('DOMContentLoaded', () => {
		if (!triggered) {
			triggered = true
			setTimeout(callback, 1)
		}
	})
}

const awaitElement = function (query, callback, time = null, err = null) {
	ensureDomLoaded(() => {
		let t = setInterval(() => {
			const e = $(query)
			if (e.length) {
				callback(e)
				clearInterval(t)
				return
			}

			if (time !== null) {
				setTimeout(() => {
					clearInterval(t)
					err(e)
					return
				}, time)
			}
		}, 10)
	})
}

const awaitTitleChange = (value, callback) => {
	let t = setInterval(() => {
		e = document.title
		if (e !== value) {
			callback(e)
			clearInterval(t)
		}
	}, 10)
}

const keyboardEvent = (callback, key = 'F19') => {
	document.addEventListener('keydown', e => {
		if (e.key.toLowerCase() === key.toLowerCase()) callback()
	})
}

const onFocus = (callback, persistent = false) => {
	if (persistent) {
		$(window).on('focus', callback)
		return
	} else if (document.hasFocus()) {
		callback()
		return
	}

	$(window).one('focus', callback)
}

const onBlur = (callback, persistent = false) => {
	if (persistent) {
		$(window).on('blur', callback)
		return
	} else if (!document.hasFocus()) {
		callback()
		return
	}

	$(window).one('blur', callback)
}

const onBlur_closeWindow = (persistent = false) => onBlur(window.close, persistent)
const onFocus_setClipboard = (data, persistent = false) => onFocus(() => setClipboard(data), persistent)
const setClipboard = data => GM_setClipboard(data)
const defaultCase = () => console.log(domain)