feat: optimize paste title

src/editor/core/cursor/CursorAgent.ts

@@ -84,6 +84,7 @@ export class CursorAgent {
                 let start = 0
                 while (start < pasteElementList.length) {
                   const pasteElement = pasteElementList[start]
+                  if (anchorElement.titleId && /^\n/.test(pasteElement.value)) break
                   if (VIRTUAL_ELEMENT_TYPE.includes(pasteElement.type!)) {
                     pasteElementList.splice(start, 1)
                     if (pasteElement.valueList) {
@@ -99,7 +100,9 @@ export class CursorAgent {
                   start++
                 }
               }
-              formatElementContext(elementList, pasteElementList, startIndex)
+              formatElementContext(elementList, pasteElementList, startIndex, {
+                isBreakWhenWrap: true
+              })
             }
             this.draw.insertElementList(pasteElementList)
           })

src/editor/utils/element.ts

@@ -563,11 +563,17 @@ export function getAnchorElement(elementList: IElement[], anchorIndex: number):
     : anchorElement
 }
 
-export function formatElementContext(sourceElementList: IElement[], formatElementList: IElement[], anchorIndex: number) {
+export interface IFormatElementContextOption {
+  isBreakWhenWrap: boolean;
+}
+
+export function formatElementContext(sourceElementList: IElement[], formatElementList: IElement[], anchorIndex: number, options?: IFormatElementContextOption) {
   const copyElement = getAnchorElement(sourceElementList, anchorIndex)
   if (!copyElement) return
+  const { isBreakWhenWrap = false } = options || {}
   for (let e = 0; e < formatElementList.length; e++) {
     const targetElement = formatElementList[e]
+    if (isBreakWhenWrap && !copyElement.listId && /^\n/.test(targetElement.value)) break
     // 定位元素非列表，无需处理粘贴列表的上下文
     if (!copyElement.listId && targetElement.type === ElementType.LIST) continue
     if (targetElement.valueList && targetElement.valueList.length) {