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import { IEditorOption, IElement, RowFlex } from '..'
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import { ZERO } from '../dataset/constant/Common'
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import { TEXTLIKE_ELEMENT_TYPE } from '../dataset/constant/Element'
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import { ControlComponent } from '../dataset/enum/Control'
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import { ElementType } from '../dataset/enum/Element'
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import { DeepRequired } from '../interface/Common'
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import { zipElementList } from './element'
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export function writeClipboardItem(text: string, html: string) {
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if (!text || !html) return
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const plainText = new Blob([text], { type: 'text/plain' })
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const htmlText = new Blob([html], { type: 'text/html' })
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if (window.ClipboardItem) {
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// @ts-ignore
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const item = new ClipboardItem({
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[plainText.type]: plainText,
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[htmlText.type]: htmlText
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})
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window.navigator.clipboard.write([item])
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} else {
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const fakeElement = document.createElement('div')
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fakeElement.setAttribute('contenteditable', 'true')
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fakeElement.innerHTML = html
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document.body.append(fakeElement)
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// add new range
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const selection = window.getSelection()
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const range = document.createRange()
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range.selectNodeContents(fakeElement)
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selection?.removeAllRanges()
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selection?.addRange(range)
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document.execCommand('copy')
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fakeElement.remove()
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}
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}
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export function writeElementList(elementList: IElement[], options: DeepRequired<IEditorOption>) {
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const clipboardDom: HTMLDivElement = document.createElement('div')
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function buildDomFromElementList(payload: IElement[]) {
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for (let e = 0; e < payload.length; e++) {
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const element = payload[e]
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// 构造表格
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if (element.type === ElementType.TABLE) {
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const tableDom: HTMLTableElement = document.createElement('table')
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const trList = element.trList!
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for (let t = 0; t < trList.length; t++) {
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const trDom = document.createElement('tr')
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const tr = trList[t]
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for (let d = 0; d < tr.tdList.length; d++) {
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const tdDom = document.createElement('td')
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tdDom.style.border = '1px solid'
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const td = tr.tdList[d]
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tdDom.colSpan = td.colspan
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tdDom.rowSpan = td.rowspan
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tdDom.innerText = td.value[0]?.value || ''
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trDom.append(tdDom)
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}
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tableDom.append(trDom)
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}
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clipboardDom.append(tableDom)
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} else if (element.type === ElementType.HYPERLINK) {
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const a = document.createElement('a')
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a.innerText = element.valueList![0].value
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if (element.url) {
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a.href = element.url
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}
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clipboardDom.append(a)
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} else if (element.type === ElementType.IMAGE) {
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const img = document.createElement('img')
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if (element.value) {
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img.src = element.value
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img.width = element.width!
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img.height = element.height!
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}
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clipboardDom.append(img)
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} else if (element.type === ElementType.SEPARATOR) {
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const hr = document.createElement('hr')
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clipboardDom.append(hr)
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} else if (element.type === ElementType.CHECKBOX) {
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const checkbox = document.createElement('input')
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checkbox.type = 'checkbox'
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if (element.checkbox?.value) {
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checkbox.setAttribute('checked', 'true')
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}
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clipboardDom.append(checkbox)
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} else if (
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!element.type
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|| element.type === ElementType.LATEX
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|| TEXTLIKE_ELEMENT_TYPE.includes(element.type)
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) {
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let text = ''
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if (element.type === ElementType.CONTROL) {
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text = element.control!.value?.[0]?.value || ''
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} else if (element.type === ElementType.DATE) {
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text = element.valueList?.map(v => v.value).join('') || ''
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} else {
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text = element.value
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}
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if (!text) continue
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const isBlock = element.rowFlex === RowFlex.CENTER || element.rowFlex === RowFlex.RIGHT
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const dom = document.createElement(isBlock ? 'p' : 'span')
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dom.innerText = text.replace(new RegExp(`${ZERO}`, 'g'), '\n')
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dom.style.fontFamily = element.font || options.defaultFont
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if (element.rowFlex) {
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dom.style.textAlign = element.rowFlex
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}
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if (element.color) {
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dom.style.color = element.color
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}
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if (element.bold) {
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dom.style.fontWeight = '600'
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}
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if (element.italic) {
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dom.style.fontStyle = 'italic'
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}
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if (element.size) {
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dom.style.fontSize = `${element.size}px`
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}
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clipboardDom.append(dom)
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}
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}
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}
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buildDomFromElementList(zipElementList(elementList))
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// 写入剪贴板
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document.body.append(clipboardDom)
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const text = clipboardDom.innerText
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// 先追加后移除，否则innerText无法解析换行符
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clipboardDom.remove()
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const html = clipboardDom.innerHTML
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if (!text || !html) return
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writeClipboardItem(text, html)
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}
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export function getElementListByHTML(htmlText: string): IElement[] {
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const elementList: IElement[] = []
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function findTextNode(dom: Element | Node) {
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if (dom.nodeType === 3) {
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const style = window.getComputedStyle(dom.parentNode as Element)
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const value = dom.textContent
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if (value) {
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elementList.push({
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value,
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color: style.color,
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bold: Number(style.fontWeight) > 500,
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italic: style.fontStyle.includes('italic'),
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size: Math.floor(Number(style.fontSize.replace('px', '')))
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})
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}
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} else if (dom.nodeType === 1) {
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const childNodes = dom.childNodes
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for (let n = 0; n < childNodes.length; n++) {
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const node = childNodes[n]
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// br元素与display:block元素需换行
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if (node.nodeName === 'BR') {
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elementList.push({
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value: '\n'
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})
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} else if (node.nodeName === 'A') {
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const aElement = node as HTMLLinkElement
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const value = aElement.innerText
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if (value) {
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elementList.push({
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type: ElementType.HYPERLINK,
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value: '',
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valueList: [{
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value
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}],
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url: aElement.href
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})
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}
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} else if (node.nodeName === 'HR') {
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elementList.push({
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value: '\n',
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type: ElementType.SEPARATOR,
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})
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} else if (node.nodeName === 'IMG') {
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const { src, width, height } = node as HTMLImageElement
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if (src && width && height) {
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elementList.push({
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width,
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height,
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value: src,
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type: ElementType.IMAGE
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})
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}
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} else if (node.nodeName === 'INPUT' && (<HTMLInputElement>node).type === ControlComponent.CHECKBOX) {
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elementList.push({
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type: ElementType.CHECKBOX,
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value: '',
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checkbox: {
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value: (<HTMLInputElement>node).checked
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}
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})
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} else {
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findTextNode(node)
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if (node.nodeType === 1 && n !== childNodes.length - 1) {
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const display = window.getComputedStyle(node as Element).display
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if (display === 'block') {
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elementList.push({
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value: '\n'
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})
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}
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}
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}
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}
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}
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}
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// 追加dom
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const clipboardDom = document.createElement('div')
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clipboardDom.innerHTML = htmlText
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document.body.appendChild(clipboardDom)
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const deleteNodes: ChildNode[] = []
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clipboardDom.childNodes.forEach(child => {
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if (child.nodeType !== 1) {
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deleteNodes.push(child)
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}
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})
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deleteNodes.forEach(node => node.remove())
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// 搜索文本节点
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findTextNode(clipboardDom)
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// 移除dom
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clipboardDom.remove()
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return elementList
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}
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