代码重构

gear-ui3/src/directive/common/copyText.js

@@ -0,0 +1,65 @@
+/**
+* v-copyText 复制文本内容
+* Copyright (c) 2022 ruoyi
+*/
+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
+}