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mirror of https://github.com/wbbaddons/Tims-Chat.git synced 2024-12-21 21:30:08 +00:00
Tims-Chat/files_wcf/js/Bastelstu.be/Chat/Helper.js
2020-11-20 00:08:57 +01:00

384 lines
8.8 KiB
JavaScript

/*
* Copyright (c) 2010-2018 Tim Düsterhus.
*
* Use of this software is governed by the Business Source License
* included in the LICENSE file.
*
* Change Date: 2024-11-20
*
* On the date above, in accordance with the Business Source
* License, use of this software will be governed by version 2
* or later of the General Public License.
*/
define(['WoltLabSuite/Core/Date/Util', 'WoltLabSuite/Core/Language'], function (
DateUtil,
Language
) {
'use strict'
class Helper {
static deepFreeze(obj) {
const propNames = Object.getOwnPropertyNames(obj)
propNames.forEach(function (name) {
let prop = obj[name]
if (typeof prop === 'object' && prop !== null) Helper.deepFreeze(prop)
})
return Object.freeze(obj)
}
/**
* Returns true if the given element is an input[type=text],
* input[type=password] or textarea.
*
* @param {Node} element
* @returns {boolean}
*/
static isInput(element) {
if (element.tagName === 'INPUT') {
if (
element.getAttribute('type') !== 'text' &&
element.getAttribute('type') !== 'password'
) {
return false
}
} else if (element.tagName !== 'TEXTAREA') {
return false
}
return true
}
static throttle(fn, threshold = 250, scope) {
let last = 0
let deferTimer = null
return function () {
const now = new Date().getTime()
const args = arguments
const context = scope || this
if (last && now < last + threshold) {
clearTimeout(deferTimer)
return (deferTimer = setTimeout(function () {
last = now
return fn.apply(context, args)
}, threshold))
} else {
last = now
return fn.apply(context, args)
}
}
}
/**
* Returns the caret position of the given element. If the element
* is not an input or textarea element -1 is returned.
*
* @param {Node} element
* @returns {number}
*/
static getCaret(element) {
if (!Helper.isInput(element)) throw new Error('Unsupported element')
let position = 0
if (element.selectionStart) {
position = element.selectionStart
}
return position
}
static setCaret(element, position) {
if (!Helper.isInput(element)) throw new Error('Unsupported element')
if (element.selectionStart) {
element.focus()
element.setSelectionRange(position, position)
}
}
static wrapElement(element, wrapper) {
wrapper = wrapper || document.createElement('div')
if (element.nextSibling) {
element.parentNode.insertBefore(wrapper, element.nextSibling)
} else {
element.parentNode.appendChild(wrapper)
}
return wrapper.appendChild(element)
}
// Based on https://github.com/alexdunphy/flexText
static makeFlexible(textarea) {
if (textarea.tagName !== 'TEXTAREA') {
throw new Error(`Unsupported element type: ${textarea.tagName}`)
}
const pre = document.createElement('pre')
const span = document.createElement('span')
const mirror = function () {
span.textContent = textarea.value
}
if (!textarea.parentNode.classList.contains('flexibleTextarea')) {
Helper.wrapElement(textarea)
textarea.parentNode.classList.add('flexibleTextarea')
}
textarea.classList.add('flexibleTextareaContent')
pre.classList.add('flexibleTextareaMirror')
pre.appendChild(span)
pre.appendChild(document.createElement('br'))
textarea.parentNode.insertBefore(pre, textarea)
textarea.addEventListener('input', mirror)
mirror()
}
static getCircularArray(size) {
class CircularArray extends Array {
constructor(size) {
super()
Object.defineProperty(this, 'size', {
enumerable: false,
value: size,
writable: false,
configurable: false,
})
}
push() {
super.push.apply(this, arguments)
if (this.length > this.size) {
super.shift()
}
return this.length
}
unshift() {
super.unshift.apply(this, arguments)
if (this.length > this.size) {
super.pop()
}
return this.length
}
first() {
return this[0]
}
last() {
return this[this.length - 1]
}
}
return new CircularArray(size)
}
static intToRGBHex(integer) {
const r = ((integer >> 16) & 0xff).toString(16)
const g = ((integer >> 8) & 0xff).toString(16)
const b = ((integer >> 0) & 0xff).toString(16)
const rr = r.length == 1 ? `0${r}` : r
const gg = g.length == 1 ? `0${g}` : g
const bb = b.length == 1 ? `0${b}` : b
return `#${rr}${gg}${bb}`
}
/**
* Returns the markup of a `time` element based on the given date just like a `time`
* element created by `wcf\system\template\plugin\TimeModifierTemplatePlugin`.
*
* @param {Date} date displayed date
* @returns {string} `time` element
*/
static getTimeElementHTML(date) {
const isFutureDate = date.getTime() > new Date().getTime()
let dateTime = ''
if (isFutureDate) {
dateTime = DateUtil.formatDateTime(date)
}
// WSC 3.1
if (typeof DateUtil.getTimeElement === 'function') {
const elem = DateUtil.getTimeElement(date)
// Work around a bug in DateUtil paired with Time/Relative
if (isFutureDate) elem.innerText = dateTime
return elem.outerHTML
}
return `<time class="datetime"
datetime="${DateUtil.format(date, 'c')}"
data-date="${DateUtil.formatDate(date)}"
data-time="${DateUtil.formatTime(date)}"
data-offset="${date.getTimezoneOffset() * 60}"
data-timestamp="${(date.getTime() - date.getMilliseconds()) / 1000}"
${isFutureDate ? 'data-is-future-date="true"' : ''}
>${dateTime}</time>`
}
/**
* Returns whether the supplied selection range covers the whole text inside the given node
*
* Source: https://stackoverflow.com/a/27686686/1112384
*
* @param {Range} range Selection range
* @param {Node}
* @return {Boolean}
*/
static rangeSpansTextContent(range, node) {
const treeWalker = document.createTreeWalker(node, NodeFilter.SHOW_TEXT)
let firstTextNode, lastTextNode
while (treeWalker.nextNode()) {
if (treeWalker.currentNode.nodeValue.trim() === '') continue
if (!firstTextNode) {
firstTextNode = treeWalker.currentNode
}
lastTextNode = treeWalker.currentNode
}
const nodeRange = range.cloneRange()
if (firstTextNode) {
nodeRange.setStart(firstTextNode, 0)
nodeRange.setEnd(lastTextNode, lastTextNode.length)
} else {
nodeRange.selectNodeContents(node)
}
const bp1 = range.compareBoundaryPoints(Range.START_TO_START, nodeRange)
const bp2 = range.compareBoundaryPoints(Range.END_TO_END, nodeRange)
return bp1 < 1 && bp2 > -1
}
/**
* Returns the text of a node and its children.
*
* @see {@link https://github.com/WoltLab/WCF/blob/a20be4267fc711299d6bde7c34a8b36199ae393f/wcfsetup/install/files/js/WCF.Message.js#L1180-L1264}
* @param {Node} node
* @return {String}
*/
static getTextContent(node) {
const acceptNode = (node) => {
if (node instanceof Element) {
if (node.tagName === 'SCRIPT' || node.tagName === 'STYLE')
return NodeFilter.FILTER_REJECT
}
return NodeFilter.FILTER_ACCEPT
}
let out = ''
const flags = NodeFilter.SHOW_TEXT | NodeFilter.SHOW_ELEMENT
const treeWalker = document.createTreeWalker(node, flags, { acceptNode })
const ignoredLinks = []
while (treeWalker.nextNode()) {
const node = treeWalker.currentNode
if (node instanceof Text) {
if (
node.parentNode.tagName === 'A' &&
ignoredLinks.indexOf(node.parentNode) >= 0
) {
continue
}
out += node.nodeValue.replace(/\n/g, '')
} else {
switch (node.tagName) {
case 'IMG': {
const alt = node.getAttribute('alt')
if (node.classList.contains('smiley')) {
out += ` ${alt} `
} else if (alt && alt !== '') {
out += ` ${alt} [Image ${node.src}] `
} else {
out += ` [Image ${node.src}] `
}
break
}
case 'BR':
case 'LI':
case 'UL':
case 'DIV':
case 'TR':
out += '\n'
break
case 'TH':
case 'TD':
out += '\t'
break
case 'P':
out += '\n\n'
break
case 'A': {
let link = node.href
const text = node.textContent.trim()
// handle named anchors
if (text !== '' && text !== node.href) {
ignoredLinks.push(node)
let truncated = false
if (text.indexOf('\u2026') >= 0) {
const parts = text.split(/\u2026/)
if (parts.length === 2) {
truncated =
node.href.startsWith(parts[0]) &&
node.href.endsWith(parts[1])
}
}
if (!truncated) {
link = `${node.textContent} [URL:${node.href}]`
}
}
out += link
break
}
}
}
}
return out
}
}
return Helper
})