fix: unable to copy text in read-only mode (#251)

* style: refactor by eslint

* fix: unable to copy text in read-only mode

* Create nice-pens-kick.md

.changeset/nice-pens-kick.md

@@ -0,0 +1,5 @@
+---
+"@wangeditor-next/core": patch
+---
+
+163 bug只读模式下无法复制文本内容

packages/core/src/text-area/event-handlers/copy.ts

@@ -4,18 +4,20 @@
  */
 
 import { IDomEditor } from '../../editor/interface'
-// import { DomEditor } from '../../editor/dom-editor'
-import TextArea from '../TextArea'
 import { hasEditableTarget } from '../helpers'
+import TextArea from '../TextArea'
 
-function handleOnCopy(e: Event, textarea: TextArea, editor: IDomEditor) {
+function handleOnCopy(e: Event, _textarea: TextArea, editor: IDomEditor) {
   const event = e as ClipboardEvent
 
-  if (!hasEditableTarget(editor, event.target)) return
-  event.preventDefault()
+  if (!hasEditableTarget(editor, event.target)) { return }
+  const { readOnly } = editor.getConfig()
+
+  if (!readOnly) { event.preventDefault() }
 
   const data = event.clipboardData
-  if (data == null) return
+
+  if (data == null) { return }
   editor.setFragmentData(data)
 }