feat: enter to delete list #376

src/editor/core/command/CommandAdapt.ts

@@ -559,34 +559,7 @@ export class CommandAdapt {
   public list(listType: ListType | null, listStyle?: ListStyle) {
     const isReadonly = this.draw.isReadonly()
     if (isReadonly) return
-    const { startIndex, endIndex } = this.range.getRange()
-    if (!~startIndex && !~endIndex) return
-    // 需要改变的元素列表
-    const changeElementList = this.range.getRangeParagraphElementList()
-    if (!changeElementList || !changeElementList.length) return
-    // 如果包含列表则设置为取消列表
-    const isUnsetList = changeElementList.find(
-      el => el.listType === listType && el.listStyle === listStyle
-    )
-    // 设置值
-    const listId = getUUID()
-    changeElementList.forEach(el => {
-      if (!isUnsetList && listType) {
-        el.listId = listId
-        el.listType = listType
-        el.listStyle = listStyle
-      } else {
-        if (el.listId) {
-          delete el.listId
-          delete el.listType
-          delete el.listStyle
-        }
-      }
-    })
-    // 光标定位
-    const isSetCursor = startIndex === endIndex
-    const curIndex = isSetCursor ? endIndex : startIndex
-    this.draw.render({ curIndex, isSetCursor })
+    this.draw.getListParticle().setList(listType, listStyle)
   }
 
   public rowFlex(payload: RowFlex) {

src/editor/core/draw/particle/ListParticle.ts

@@ -7,9 +7,13 @@ import { DeepRequired } from '../../../interface/Common'
 import { IEditorOption } from '../../../interface/Editor'
 import { IElement, IElementPosition } from '../../../interface/Element'
 import { IRow } from '../../../interface/Row'
+import { getUUID } from '../../../utils'
+import { RangeManager } from '../../range/RangeManager'
 import { Draw } from '../Draw'
 
 export class ListParticle {
+  private draw: Draw
+  private range: RangeManager
   private options: DeepRequired<IEditorOption>
 
   // 非递增样式直接返回默认值
@@ -18,9 +22,80 @@ export class ListParticle {
   private readonly LIST_GAP = 10
 
   constructor(draw: Draw) {
+    this.draw = draw
+    this.range = draw.getRange()
     this.options = draw.getOptions()
   }
 
+  public setList(listType: ListType | null, listStyle?: ListStyle) {
+    const isReadonly = this.draw.isReadonly()
+    if (isReadonly) return
+    const { startIndex, endIndex } = this.range.getRange()
+    if (!~startIndex && !~endIndex) return
+    // 需要改变的元素列表
+    const changeElementList = this.range.getRangeParagraphElementList()
+    if (!changeElementList || !changeElementList.length) return
+    // 如果包含列表则设置为取消列表
+    const isUnsetList = changeElementList.find(
+      el => el.listType === listType && el.listStyle === listStyle
+    )
+    if (isUnsetList || !listType) {
+      this.unsetList()
+      return
+    }
+    // 设置值
+    const listId = getUUID()
+    changeElementList.forEach(el => {
+      el.listId = listId
+      el.listType = listType
+      el.listStyle = listStyle
+    })
+    // 光标定位
+    const isSetCursor = startIndex === endIndex
+    const curIndex = isSetCursor ? endIndex : startIndex
+    this.draw.render({ curIndex, isSetCursor })
+  }
+
+  public unsetList() {
+    const isReadonly = this.draw.isReadonly()
+    if (isReadonly) return
+    const { startIndex, endIndex } = this.range.getRange()
+    if (!~startIndex && !~endIndex) return
+    // 需要改变的元素列表
+    const changeElementList = this.range
+      .getRangeParagraphElementList()
+      ?.filter(el => el.listId)
+    if (!changeElementList || !changeElementList.length) return
+    // 如果列表最后字符不是换行符则需插入换行符
+    const elementList = this.draw.getElementList()
+    const endElement = elementList[endIndex]
+    if (endElement.listId) {
+      let start = endIndex + 1
+      while (start < elementList.length) {
+        const element = elementList[start]
+        if (element.value === ZERO && !element.listWrap) break
+        if (element.listId !== endElement.listId) {
+          this.draw.spliceElementList(elementList, start, 0, {
+            value: ZERO
+          })
+          break
+        }
+        start++
+      }
+    }
+    // 取消设置
+    changeElementList.forEach(el => {
+      delete el.listId
+      delete el.listType
+      delete el.listStyle
+      delete el.listWrap
+    })
+    // 光标定位
+    const isSetCursor = startIndex === endIndex
+    const curIndex = isSetCursor ? endIndex : startIndex
+    this.draw.render({ curIndex, isSetCursor })
+  }
+
   public computeListStyle(
     ctx: CanvasRenderingContext2D,
     elementList: IElement[]

src/editor/core/event/handlers/keydown/enter.ts

@@ -0,0 +1,70 @@
+import { ZERO } from '../../../../dataset/constant/Common'
+import { IElement } from '../../../../interface/Element'
+import { formatElementContext } from '../../../../utils/element'
+import { CanvasEvent } from '../../CanvasEvent'
+
+export function enter(evt: KeyboardEvent, host: CanvasEvent) {
+  const draw = host.getDraw()
+  const isReadonly = draw.isReadonly()
+  const control = draw.getControl()
+  if (isReadonly || control.isPartRangeInControlOutside()) return
+  const rangeManager = draw.getRange()
+  const { startIndex, endIndex } = rangeManager.getRange()
+  const isCollapsed = rangeManager.getIsCollapsed()
+  const elementList = draw.getElementList()
+  const startElement = elementList[startIndex]
+  const endElement = elementList[endIndex]
+  // 最后一个列表项行首回车取消列表设置
+  if (
+    isCollapsed &&
+    endElement.listId &&
+    endElement.value === ZERO &&
+    elementList[endIndex + 1]?.listId !== endElement.listId
+  ) {
+    draw.getListParticle().unsetList()
+    return
+  }
+  // 列表块内换行
+  const enterText: IElement = {
+    value: ZERO
+  }
+  if (evt.shiftKey && startElement.listId) {
+    enterText.listWrap = true
+  }
+  // 标题结尾处回车无需格式化
+  if (
+    !(
+      endElement.titleId &&
+      endElement.titleId !== elementList[endIndex + 1]?.titleId
+    )
+  ) {
+    formatElementContext(elementList, [enterText], startIndex)
+  }
+  // 控件或文档插入换行元素
+  const activeControl = control.getActiveControl()
+  let curIndex: number
+  if (activeControl && !control.isRangInPostfix()) {
+    curIndex = control.setValue([enterText])
+  } else {
+    const position = draw.getPosition()
+    const cursorPosition = position.getCursorPosition()
+    if (!cursorPosition) return
+    const { index } = cursorPosition
+    if (isCollapsed) {
+      draw.spliceElementList(elementList, index + 1, 0, enterText)
+    } else {
+      draw.spliceElementList(
+        elementList,
+        startIndex + 1,
+        endIndex - startIndex,
+        enterText
+      )
+    }
+    curIndex = index + 1
+  }
+  if (~curIndex) {
+    rangeManager.setRange(curIndex, curIndex)
+    draw.render({ curIndex })
+  }
+  evt.preventDefault()
+}

src/editor/core/event/handlers/keydown/index.ts

@@ -1,12 +1,13 @@
-import { EditorMode, EditorZone } from '../../..'
-import { ZERO } from '../../../dataset/constant/Common'
-import { ElementType } from '../../../dataset/enum/Element'
-import { KeyMap } from '../../../dataset/enum/KeyMap'
-import { MoveDirection } from '../../../dataset/enum/Observer'
-import { IElement, IElementPosition } from '../../../interface/Element'
-import { formatElementContext } from '../../../utils/element'
-import { isMod } from '../../../utils/hotkey'
-import { CanvasEvent } from '../CanvasEvent'
+import { ZERO } from '../../../../dataset/constant/Common'
+import { EditorMode, EditorZone } from '../../../../dataset/enum/Editor'
+import { ElementType } from '../../../../dataset/enum/Element'
+import { KeyMap } from '../../../../dataset/enum/KeyMap'
+import { MoveDirection } from '../../../../dataset/enum/Observer'
+import { IElement, IElementPosition } from '../../../../interface/Element'
+import { formatElementContext } from '../../../../utils/element'
+import { isMod } from '../../../../utils/hotkey'
+import { CanvasEvent } from '../../CanvasEvent'
+import { enter } from './enter'
 
 export function keydown(evt: KeyboardEvent, host: CanvasEvent) {
   if (host.isComposing) return
@@ -85,46 +86,7 @@ export function keydown(evt: KeyboardEvent, host: CanvasEvent) {
     rangeManager.setRange(curIndex, curIndex)
     draw.render({ curIndex })
   } else if (evt.key === KeyMap.Enter) {
-    if (isReadonly || control.isPartRangeInControlOutside()) return
-    const enterText: IElement = {
-      value: ZERO
-    }
-    const startElement = elementList[startIndex]
-    const endElement = elementList[endIndex]
-    // 列表块内换行
-    if (evt.shiftKey && startElement.listId) {
-      enterText.listWrap = true
-    }
-    // 标题结尾处回车无需格式化
-    if (
-      !(
-        endElement.titleId &&
-        endElement.titleId !== elementList[endIndex + 1]?.titleId
-      )
-    ) {
-      formatElementContext(elementList, [enterText], startIndex)
-    }
-    let curIndex: number
-    if (activeControl && !control.isRangInPostfix()) {
-      curIndex = control.setValue([enterText])
-    } else {
-      if (isCollapsed) {
-        draw.spliceElementList(elementList, index + 1, 0, enterText)
-      } else {
-        draw.spliceElementList(
-          elementList,
-          startIndex + 1,
-          endIndex - startIndex,
-          enterText
-        )
-      }
-      curIndex = index + 1
-    }
-    if (~curIndex) {
-      rangeManager.setRange(curIndex, curIndex)
-      draw.render({ curIndex })
-    }
-    evt.preventDefault()
+    enter(evt, host)
   } else if (evt.key === KeyMap.Left) {
     if (isReadonly) return
     if (index > 0) {

src/editor/core/range/RangeManager.ts

@@ -154,9 +154,12 @@ export class RangeManager {
       if (!rowArray.includes(rowNo)) {
         rowArray.unshift(rowNo)
       }
+      const element = elementList[start]
+      const preElement = elementList[start - 1]
       if (
-        positionList[start]?.value === ZERO ||
-        elementList[start].titleId !== elementList[start - 1]?.titleId
+        (element.value === ZERO && !element.listWrap) ||
+        element.listId !== preElement?.listId ||
+        element.titleId !== preElement?.titleId
       ) {
         break
       }
@@ -181,9 +184,12 @@ export class RangeManager {
     // 向下查找
     let end = endIndex
     while (end < positionList.length) {
+      const element = elementList[end]
+      const nextElement = elementList[end + 1]
       if (
-        positionList[end].value === ZERO ||
-        elementList[end].titleId !== elementList[end + 1]?.titleId
+        (element.value === ZERO && !element.listWrap) ||
+        element.listId !== nextElement?.listId ||
+        element.titleId !== nextElement?.titleId
       ) {
         break
       }