/**
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* v-copyText 复制文本内容
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* Copyright (c) 2022 ruoyi
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*/
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export default {
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beforeMount(el, { value, arg }) {
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if (arg === "callback") {
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el.$copyCallback = value
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} else {
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el.$copyValue = value
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const handler = () => {
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copyTextToClipboard(el.$copyValue)
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if (el.$copyCallback) {
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el.$copyCallback(el.$copyValue)
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}
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}
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el.addEventListener("click", handler)
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el.$destroyCopy = () => el.removeEventListener("click", handler)
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}
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}
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}
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function copyTextToClipboard(input, { target = document.body } = {}) {
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const element = document.createElement('textarea')
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const previouslyFocusedElement = document.activeElement
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element.value = input
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// Prevent keyboard from showing on mobile
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element.setAttribute('readonly', '')
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element.style.contain = 'strict'
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element.style.position = 'absolute'
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element.style.left = '-9999px'
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element.style.fontSize = '12pt' // Prevent zooming on iOS
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const selection = document.getSelection()
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const originalRange = selection.rangeCount > 0 && selection.getRangeAt(0)
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target.append(element)
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element.select()
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// Explicit selection workaround for iOS
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element.selectionStart = 0
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element.selectionEnd = input.length
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let isSuccess = false
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try {
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isSuccess = document.execCommand('copy')
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} catch { }
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element.remove()
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if (originalRange) {
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selection.removeAllRanges()
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selection.addRange(originalRange)
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}
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// Get the focus back on the previously focused element, if any
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if (previouslyFocusedElement) {
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previouslyFocusedElement.focus()
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}
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return isSuccess
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}
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