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