// #ifdef APP-VUE || H5
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/**
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* v-copyText 复制文本内容
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* Copyright (c) 2022 ruoyi
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* v-copyText="要复制的文本内容"
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* v-copyText:callback="复制成功后的回调函数"
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* 点击被标注的元素即可复制文本内容
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*/
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import type { Directive, DirectiveBinding } from "vue";
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interface ElType extends HTMLElement {
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$copyValue: string;
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$copyCallback: Function;
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$destroyCopy:Function;
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}
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const vCopyText:Directive = {
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beforeMount(el:ElType , binding:DirectiveBinding) {
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if (binding.arg === "callback") {
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el.$copyCallback = binding.value;
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} else {
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el.$copyValue = binding.value;
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const handler = () => {
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copyTextToClipboard(el.$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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export default vCopyText;
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function copyTextToClipboard(input:string, { target = document.body } = {}) {
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const element = document.createElement('textarea');
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const previouslyFocusedElement = document.activeElement as HTMLElement;
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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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if(!selection)return
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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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// #endif
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