feat: set title at paragraph level

src/editor/core/command/CommandAdapt.ts

@@ -391,14 +391,14 @@ export class CommandAdapt {
     const elementList = this.draw.getElementList()
     if (startIndex === endIndex) {
       // 选区行信息
-      const rangeRow = this.range.getRangeRow()
+      const rangeRow = this.range.getRangeParagraph()
       if (!rangeRow) return
       const positionList = this.position.getPositionList()
       for (let p = 0; p < positionList.length; p++) {
         const position = positionList[p]
-        const rowSet = rangeRow.get(position.pageNo)
-        if (!rowSet) continue
-        if (rowSet.has(position.rowNo)) {
+        const rowArray = rangeRow.get(position.pageNo)
+        if (!rowArray) continue
+        if (rowArray.includes(position.rowNo)) {
           changeElementList.push(elementList[p])
         }
       }

src/editor/core/range/RangeManager.ts

@@ -4,7 +4,7 @@ import { TEXTLIKE_ELEMENT_TYPE } from '../../dataset/constant/Element'
 import { ControlComponent } from '../../dataset/enum/Control'
 import { IEditorOption } from '../../interface/Editor'
 import { IElement } from '../../interface/Element'
-import { IRange, RangeRowMap } from '../../interface/Range'
+import { IRange, RangeRowArray, RangeRowMap } from '../../interface/Range'
 import { Draw } from '../draw/Draw'
 import { HistoryManager } from '../history/HistoryManager'
 import { Listener } from '../listener/Listener'
@@ -72,6 +72,52 @@ export class RangeManager {
     return rangeRow
   }
 
+  // 获取选取段落信息
+  public getRangeParagraph(): RangeRowArray | null {
+    const { startIndex, endIndex } = this.range
+    if (!~startIndex && !~endIndex) return null
+    const positionList = this.position.getPositionList()
+    const elementList = this.draw.getElementList()
+    const rangeRow: RangeRowArray = new Map()
+    // 向上查找
+    let start = startIndex
+    while (start > 0) {
+      if (
+        positionList[start].value === ZERO ||
+        (elementList[start].titleId !== elementList[start - 1]?.titleId)
+      ) break
+      const { pageNo, rowNo } = positionList[start]
+      let rowArray = rangeRow.get(pageNo)
+      if (!rowArray) {
+        rowArray = []
+        rangeRow.set(pageNo, rowArray)
+      }
+      if (!rowArray.includes(rowNo)) {
+        rowArray.unshift(rowNo)
+      }
+      start--
+    }
+    // 向下查找
+    let end = endIndex
+    while (end < positionList.length) {
+      if (
+        positionList[end].value === ZERO ||
+        elementList[end].titleId !== elementList[end + 1]?.titleId
+      ) break
+      const { pageNo, rowNo } = positionList[end]
+      let rowArray = rangeRow.get(pageNo)
+      if (!rowArray) {
+        rowArray = []
+        rangeRow.set(pageNo, rowArray)
+      }
+      if (!rowArray.includes(rowNo)) {
+        rowArray.push(rowNo)
+      }
+      end++
+    }
+    return rangeRow
+  }
+
   public getIsPointInRange(x: number, y: number): boolean {
     const { startIndex, endIndex } = this.range
     const positionList = this.position.getPositionList()

src/editor/interface/Range.ts

@@ -12,4 +12,6 @@ export interface IRange {
   zone?: EditorZone;
 }
 
+export type RangeRowArray = Map<number, number[]>
+
 export type RangeRowMap = Map<number, Set<number>>