/**
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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: any, { value, arg }: any) {
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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: string, { target = document.body } = {}) {
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const element = document.createElement('textarea');
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const previouslyFocusedElement = document.activeElement as HTMLInputElement;
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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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let originalRange;
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if (selection) {
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originalRange = selection?.rangeCount > 0 && selection.getRangeAt(0);
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}
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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 (err) {
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console.error(err);
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}
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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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