feat: image element floating #363

docs/en/guide/contextmenu-internal.md

@@ -19,8 +19,10 @@
 - Change the picture
 - Save as picture
 - Text wrapping
-- Embedded type
-- Upper and lower surrounding
+  - Embedded
+  - Upper and lower surrounding
+  - Float above text
+  - Float below text
 
 ## Table
 

docs/guide/contextmenu-internal.md

@@ -21,6 +21,8 @@
 - 文字环绕
   - 嵌入型
   - 上下型环绕
+  - 浮于文字上方
+  - 衬于文字下方
 
 ## 表格
 

src/editor/assets/css/index.css

@@ -68,4 +68,10 @@
   to {
     opacity: 1
   }
+}
+
+.ce-float-image {
+  position: absolute;
+  opacity: 0.5;
+  pointer-events: none;
 }

src/editor/assets/css/resizer/resizer.css

@@ -54,6 +54,7 @@
   height: 20px;
   white-space: nowrap;
   position: absolute;
+  z-index: 9;
   top: -30px;
   left: 0;
   opacity: .9;

src/editor/core/command/CommandAdapt.ts

@@ -2,7 +2,8 @@ import { NBSP, WRAP, ZERO } from '../../dataset/constant/Common'
 import { EDITOR_ELEMENT_STYLE_ATTR } from '../../dataset/constant/Element'
 import { titleSizeMapping } from '../../dataset/constant/Title'
 import { defaultWatermarkOption } from '../../dataset/constant/Watermark'
-import { ControlComponent, ImageDisplay } from '../../dataset/enum/Control'
+import { ImageDisplay } from '../../dataset/enum/Common'
+import { ControlComponent } from '../../dataset/enum/Control'
 import {
   EditorContext,
   EditorMode,
@@ -1944,6 +1945,22 @@ export class CommandAdapt {
   public changeImageDisplay(element: IElement, display: ImageDisplay) {
     if (element.imgDisplay === display) return
     element.imgDisplay = display
+    if (
+      display === ImageDisplay.FLOAT_TOP ||
+      display === ImageDisplay.FLOAT_BOTTOM
+    ) {
+      const positionList = this.position.getPositionList()
+      const { startIndex } = this.range.getRange()
+      const {
+        coordinate: { leftTop }
+      } = positionList[startIndex]
+      element.imgFloatPosition = {
+        x: leftTop[0],
+        y: leftTop[1]
+      }
+    } else {
+      delete element.imgFloatPosition
+    }
     this.draw.getPreviewer().clearResizer()
     this.draw.render({
       isSetCursor: false

src/editor/core/contextmenu/menus/imageMenus.ts

@@ -1,5 +1,5 @@
 import { INTERNAL_CONTEXT_MENU_KEY } from '../../../dataset/constant/ContextMenu'
-import { ImageDisplay } from '../../../dataset/enum/Control'
+import { ImageDisplay } from '../../../dataset/enum/Common'
 import { ElementType } from '../../../dataset/enum/Element'
 import {
   IContextMenuContext,
@@ -7,7 +7,15 @@ import {
 } from '../../../interface/contextmenu/ContextMenu'
 import { Command } from '../../command/Command'
 const {
-  IMAGE: { CHANGE, SAVE_AS, TEXT_WRAP, TEXT_WRAP_EMBED, TEXT_WRAP_UP_DOWN }
+  IMAGE: {
+    CHANGE,
+    SAVE_AS,
+    TEXT_WRAP,
+    TEXT_WRAP_EMBED,
+    TEXT_WRAP_UP_DOWN,
+    TEXT_WRAP_FLOAT_TOP,
+    TEXT_WRAP_FLOAT_BOTTOM
+  }
 } = INTERNAL_CONTEXT_MENU_KEY
 
 export const imageMenus: IRegisterContextMenu[] = [
@@ -86,6 +94,28 @@ export const imageMenus: IRegisterContextMenu[] = [
             ImageDisplay.INLINE
           )
         }
+      },
+      {
+        key: TEXT_WRAP_FLOAT_TOP,
+        i18nPath: 'contextmenu.image.textWrapType.floatTop',
+        when: () => true,
+        callback: (command: Command, context: IContextMenuContext) => {
+          command.executeChangeImageDisplay(
+            context.startElement!,
+            ImageDisplay.FLOAT_TOP
+          )
+        }
+      },
+      {
+        key: TEXT_WRAP_FLOAT_BOTTOM,
+        i18nPath: 'contextmenu.image.textWrapType.floatBottom',
+        when: () => true,
+        callback: (command: Command, context: IContextMenuContext) => {
+          command.executeChangeImageDisplay(
+            context.startElement!,
+            ImageDisplay.FLOAT_BOTTOM
+          )
+        }
       }
     ]
   }

src/editor/core/draw/Draw.ts

@@ -3,6 +3,7 @@ import { ZERO } from '../../dataset/constant/Common'
 import { RowFlex } from '../../dataset/enum/Row'
 import {
   IAppendElementListOption,
+  IDrawFloatPayload,
   IDrawOption,
   IDrawPagePayload,
   IDrawRowPayload,
@@ -66,8 +67,7 @@ import { CheckboxParticle } from './particle/CheckboxParticle'
 import { DeepRequired, IPadding } from '../../interface/Common'
 import {
   ControlComponent,
-  ControlIndentation,
-  ImageDisplay
+  ControlIndentation
 } from '../../dataset/enum/Control'
 import { formatElementList } from '../../utils/element'
 import { WorkerManager } from '../worker/WorkerManager'
@@ -87,6 +87,7 @@ import { EventBus } from '../event/eventbus/EventBus'
 import { EventBusMap } from '../../interface/EventBus'
 import { Group } from './interactive/Group'
 import { Override } from '../override/Override'
+import { ImageDisplay } from '../../dataset/enum/Common'
 
 export class Draw {
   private container: HTMLDivElement
@@ -1106,28 +1107,39 @@ export class Draw {
         element.type === ElementType.IMAGE ||
         element.type === ElementType.LATEX
       ) {
-        const elementWidth = element.width! * scale
-        const elementHeight = element.height! * scale
-        // 图片超出尺寸后自适应
-        const curRowWidth =
-          element.imgDisplay === ImageDisplay.INLINE ? 0 : curRow.width
-        if (curRowWidth + elementWidth > availableWidth) {
-          // 计算剩余大小
-          const surplusWidth = availableWidth - curRowWidth
-          const adaptiveWidth =
-            surplusWidth > 0
-              ? surplusWidth
-              : Math.min(elementWidth, availableWidth)
-          const adaptiveHeight = (elementHeight * adaptiveWidth) / elementWidth
-          element.width = adaptiveWidth / scale
-          element.height = adaptiveHeight / scale
-          metrics.width = adaptiveWidth
-          metrics.height = adaptiveHeight
-          metrics.boundingBoxDescent = adaptiveHeight
+        // 浮动图片无需计算数据
+        if (
+          element.imgDisplay === ImageDisplay.FLOAT_TOP ||
+          element.imgDisplay === ImageDisplay.FLOAT_BOTTOM
+        ) {
+          metrics.width = 0
+          metrics.height = 0
+          metrics.boundingBoxDescent = 0
         } else {
-          metrics.width = elementWidth
-          metrics.height = elementHeight
-          metrics.boundingBoxDescent = elementHeight
+          const elementWidth = element.width! * scale
+          const elementHeight = element.height! * scale
+          // 图片超出尺寸后自适应
+          const curRowWidth =
+            element.imgDisplay === ImageDisplay.INLINE ? 0 : curRow.width
+          if (curRowWidth + elementWidth > availableWidth) {
+            // 计算剩余大小
+            const surplusWidth = availableWidth - curRowWidth
+            const adaptiveWidth =
+              surplusWidth > 0
+                ? surplusWidth
+                : Math.min(elementWidth, availableWidth)
+            const adaptiveHeight =
+              (elementHeight * adaptiveWidth) / elementWidth
+            element.width = adaptiveWidth / scale
+            element.height = adaptiveHeight / scale
+            metrics.width = adaptiveWidth
+            metrics.height = adaptiveHeight
+            metrics.boundingBoxDescent = adaptiveHeight
+          } else {
+            metrics.width = elementWidth
+            metrics.height = elementHeight
+            metrics.boundingBoxDescent = elementHeight
+          }
         }
         metrics.boundingBoxAscent = 0
       } else if (element.type === ElementType.TABLE) {
@@ -1607,7 +1619,13 @@ export class Draw {
         // 元素绘制
         if (element.type === ElementType.IMAGE) {
           this._drawRichText(ctx)
-          this.imageParticle.render(ctx, element, x, y + offsetY)
+          // 浮动图片单独绘制
+          if (
+            element.imgDisplay !== ImageDisplay.FLOAT_TOP &&
+            element.imgDisplay !== ImageDisplay.FLOAT_BOTTOM
+          ) {
+            this.imageParticle.render(ctx, element, x, y + offsetY)
+          }
         } else if (element.type === ElementType.LATEX) {
           this._drawRichText(ctx)
           this.laTexParticle.render(ctx, element, x, y + offsetY)
@@ -1816,6 +1834,31 @@ export class Draw {
     }
   }
 
+  private _drawFloat(
+    ctx: CanvasRenderingContext2D,
+    payload: IDrawFloatPayload
+  ) {
+    const floatPositionList = this.position.getFloatPositionList()
+    const { imgDisplay, pageNo } = payload
+    for (let e = 0; e < floatPositionList.length; e++) {
+      const floatPosition = floatPositionList[e]
+      const element = floatPosition.element
+      if (
+        pageNo === floatPosition.pageNo &&
+        element.imgDisplay === imgDisplay &&
+        element.type === ElementType.IMAGE
+      ) {
+        const imgFloatPosition = element.imgFloatPosition!
+        this.imageParticle.render(
+          ctx,
+          element,
+          imgFloatPosition.x,
+          imgFloatPosition.y
+        )
+      }
+    }
+  }
+
   private _clearPage(pageNo: number) {
     const ctx = this.ctxList[pageNo]
     const pageDom = this.pageList[pageNo]
@@ -1837,6 +1880,11 @@ export class Draw {
     if (this.mode !== EditorMode.PRINT) {
       this.margin.render(ctx, pageNo)
     }
+    // 渲染衬于文字下方元素
+    this._drawFloat(ctx, {
+      pageNo,
+      imgDisplay: ImageDisplay.FLOAT_BOTTOM
+    })
     // 控件高亮
     this.control.renderHighlightList(ctx, pageNo)
     // 渲染元素
@@ -1864,6 +1912,11 @@ export class Draw {
         this.footer.render(ctx, pageNo)
       }
     }
+    // 渲染浮于文字上方元素
+    this._drawFloat(ctx, {
+      pageNo,
+      imgDisplay: ImageDisplay.FLOAT_TOP
+    })
     // 搜索匹配绘制
     if (this.search.getSearchKeyword()) {
       this.search.render(ctx, pageNo)

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

@@ -1,3 +1,5 @@
+import { EDITOR_PREFIX } from '../../../dataset/constant/Editor'
+import { ImageDisplay } from '../../../dataset/enum/Common'
 import { IEditorOption } from '../../../interface/Editor'
 import { IElement } from '../../../interface/Element'
 import { convertStringToBase64 } from '../../../utils'
@@ -7,11 +9,62 @@ export class ImageParticle {
   private draw: Draw
   protected options: Required<IEditorOption>
   protected imageCache: Map<string, HTMLImageElement>
+  private container: HTMLDivElement
+  private floatImageContainer: HTMLDivElement | null
+  private floatImage: HTMLImageElement | null
 
   constructor(draw: Draw) {
     this.draw = draw
     this.options = draw.getOptions()
+    this.container = draw.getContainer()
     this.imageCache = new Map()
+    this.floatImageContainer = null
+    this.floatImage = null
+  }
+
+  public createFloatImage(element: IElement) {
+    const { scale } = this.options
+    // 复用浮动元素
+    let floatImageContainer = this.floatImageContainer
+    let floatImage = this.floatImage
+    if (!floatImageContainer) {
+      floatImageContainer = document.createElement('div')
+      floatImageContainer.classList.add(`${EDITOR_PREFIX}-float-image`)
+      this.container.append(floatImageContainer)
+      this.floatImageContainer = floatImageContainer
+    }
+    if (!floatImage) {
+      floatImage = document.createElement('img')
+      floatImageContainer.append(floatImage)
+      this.floatImage = floatImage
+    }
+    floatImageContainer.style.display = 'none'
+    floatImage.style.width = `${element.width! * scale}px`
+    floatImage.style.height = `${element.height! * scale}px`
+    // 浮动图片初始信息
+    const height = this.draw.getHeight()
+    const pageGap = this.draw.getPageGap()
+    const preY = this.draw.getPageNo() * (height + pageGap)
+    const imgFloatPosition = element.imgFloatPosition!
+    floatImageContainer.style.left = `${imgFloatPosition.x}px`
+    floatImageContainer.style.top = `${preY + imgFloatPosition.y}px`
+    floatImage.src = element.value
+  }
+
+  public dragFloatImage(movementX: number, movementY: number) {
+    if (!this.floatImageContainer) return
+    this.floatImageContainer.style.display = 'block'
+    // 之前的坐标加移动长度
+    const x = parseFloat(this.floatImageContainer.style.left) + movementX
+    const y = parseFloat(this.floatImageContainer.style.top) + movementY
+    this.floatImageContainer.style.left = `${x}px`
+    this.floatImageContainer.style.top = `${y}px`
+  }
+
+  public destroyFloatImage() {
+    if (this.floatImageContainer) {
+      this.floatImageContainer.style.display = 'none'
+    }
   }
 
   protected addImageObserver(promise: Promise<unknown>) {
@@ -58,9 +111,18 @@ export class ImageParticle {
         img.setAttribute('crossOrigin', 'Anonymous')
         img.src = element.value
         img.onload = () => {
-          ctx.drawImage(img, x, y, width, height)
           this.imageCache.set(element.id!, img)
           resolve(element)
+          // 衬于文字下方图片需要重新首先绘制
+          if (element.imgDisplay === ImageDisplay.FLOAT_BOTTOM) {
+            this.draw.render({
+              isCompute: false,
+              isSetCursor: false,
+              isSubmitHistory: false
+            })
+          } else {
+            ctx.drawImage(img, x, y, width, height)
+          }
         }
         img.onerror = error => {
           const fallbackImage = this.getFallbackImage(width, height)

src/editor/core/draw/particle/previewer/Previewer.ts

@@ -63,6 +63,32 @@ export class Previewer {
     this.previewerImage = null
   }
 
+  private _getElementPosition(
+    element: IElement,
+    position: IElementPosition | null = null
+  ): { x: number; y: number } {
+    let x = 0
+    let y = 0
+    const height = this.draw.getHeight()
+    const pageGap = this.draw.getPageGap()
+    const preY = this.draw.getPageNo() * (height + pageGap)
+    // 优先使用浮动位置
+    if (element.imgFloatPosition) {
+      x = element.imgFloatPosition.x!
+      y = element.imgFloatPosition.y + preY
+    } else if (position) {
+      const {
+        coordinate: {
+          leftTop: [left, top]
+        },
+        ascent
+      } = position
+      x = left
+      y = top + preY + ascent
+    }
+    return { x, y }
+  }
+
   private _createResizerDom(): IPreviewerCreateResult {
     // 拖拽边框
     const resizerSelection = document.createElement('div')
@@ -114,10 +140,8 @@ export class Previewer {
 
   private _mousedown(evt: MouseEvent) {
     this.canvas = this.draw.getPage()
-    if (!this.curPosition || !this.curElement) return
+    if (!this.curElement) return
     const { scale } = this.options
-    const height = this.draw.getHeight()
-    const pageGap = this.draw.getPageGap()
     this.mousedownX = evt.x
     this.mousedownY = evt.y
     const target = evt.target as HTMLDivElement
@@ -129,15 +153,13 @@ export class Previewer {
     // 拖拽图片镜像
     this.resizerImage.src = this.curElementSrc
     this.resizerImageContainer.style.display = 'block'
-    const {
-      coordinate: {
-        leftTop: [left, top]
-      },
-      ascent
-    } = this.curPosition
-    const prePageHeight = this.draw.getPageNo() * (height + pageGap)
-    this.resizerImageContainer.style.left = `${left}px`
-    this.resizerImageContainer.style.top = `${top + prePageHeight + ascent}px`
+    // 优先使用浮动位置信息
+    const { x: resizerLeft, y: resizerTop } = this._getElementPosition(
+      this.curElement,
+      this.curPosition
+    )
+    this.resizerImageContainer.style.left = `${resizerLeft}px`
+    this.resizerImageContainer.style.top = `${resizerTop}px`
     this.resizerImage.style.width = `${this.curElement.width! * scale}px`
     this.resizerImage.style.height = `${this.curElement.height! * scale}px`
     // 追加全局事件
@@ -147,7 +169,7 @@ export class Previewer {
       'mouseup',
       () => {
         // 改变尺寸
-        if (this.curElement && this.curPosition) {
+        if (this.curElement) {
           this.curElement.width = this.width
           this.curElement.height = this.height
           this.draw.render({ isSetCursor: false })
@@ -398,27 +420,22 @@ export class Previewer {
 
   public drawResizer(
     element: IElement,
-    position: IElementPosition,
+    position: IElementPosition | null = null,
     options: IPreviewerDrawOption = {}
   ) {
     this.previewerDrawOption = options
     const { scale } = this.options
-    const {
-      coordinate: {
-        leftTop: [left, top]
-      },
-      ascent
-    } = position
     const elementWidth = element.width! * scale
     const elementHeight = element.height! * scale
-    const height = this.draw.getHeight()
-    const pageGap = this.draw.getPageGap()
-    const preY = this.draw.getPageNo() * (height + pageGap)
     // 尺寸预览
     this._updateResizerSizeView(elementWidth, elementHeight)
-    // 边框
-    this.resizerSelection.style.left = `${left}px`
-    this.resizerSelection.style.top = `${top + preY + ascent}px`
+    // 优先使用浮动位置信息
+    const { x: resizerLeft, y: resizerTop } = this._getElementPosition(
+      element,
+      position
+    )
+    this.resizerSelection.style.left = `${resizerLeft}px`
+    this.resizerSelection.style.top = `${resizerTop}px`
     // 更新预览包围框尺寸
     this._updateResizerRect(elementWidth, elementHeight)
     this.resizerSelection.style.display = 'block'

src/editor/core/event/handlers/mousedown.ts

@@ -1,3 +1,4 @@
+import { ImageDisplay } from '../../../dataset/enum/Common'
 import { ElementType } from '../../../dataset/enum/Element'
 import { MouseEventButton } from '../../../dataset/enum/Event'
 import { deepClone } from '../../../utils'
@@ -60,7 +61,9 @@ export function mousedown(evt: MouseEvent, host: CanvasEvent) {
   // 记录选区开始位置
   host.mouseDownStartPosition = {
     ...positionResult,
-    index: isTable ? tdValueIndex! : index
+    index: isTable ? tdValueIndex! : index,
+    x: evt.offsetX,
+    y: evt.offsetY
   }
   const elementList = draw.getElementList()
   const positionList = position.getPositionList()
@@ -129,6 +132,13 @@ export function mousedown(evt: MouseEvent, host: CanvasEvent) {
     })
     // 点击图片允许拖拽调整位置
     setRangeCache(host)
+    // 浮动元素创建镜像图片
+    if (
+      curElement.imgDisplay === ImageDisplay.FLOAT_TOP ||
+      curElement.imgDisplay === ImageDisplay.FLOAT_BOTTOM
+    ) {
+      draw.getImageParticle().createFloatImage(curElement)
+    }
   }
   // 表格工具组件
   const tableTool = draw.getTableTool()

src/editor/core/event/handlers/mousemove.ts

@@ -1,3 +1,5 @@
+import { ImageDisplay } from '../../../dataset/enum/Common'
+import { ElementType } from '../../../dataset/enum/Element'
 import { CanvasEvent } from '../CanvasEvent'
 
 export function mousemove(evt: MouseEvent, host: CanvasEvent) {
@@ -22,6 +24,19 @@ export function mousemove(evt: MouseEvent, host: CanvasEvent) {
         return
       }
     }
+    const cacheStartIndex = host.cacheRange?.startIndex
+    if (cacheStartIndex) {
+      // 浮动元素拖拽调整位置
+      const dragElement = host.cacheElementList![cacheStartIndex]
+      if (
+        dragElement?.type === ElementType.IMAGE &&
+        (dragElement.imgDisplay === ImageDisplay.FLOAT_TOP ||
+          dragElement.imgDisplay === ImageDisplay.FLOAT_BOTTOM)
+      ) {
+        draw.getPreviewer().clearResizer()
+        draw.getImageParticle().dragFloatImage(evt.movementX, evt.movementY)
+      }
+    }
     host.dragover(evt)
     host.isAllowDrop = true
     return

src/editor/core/event/handlers/mouseup.ts

@@ -1,4 +1,5 @@
 import { EDITOR_ELEMENT_STYLE_ATTR } from '../../../dataset/constant/Element'
+import { ImageDisplay } from '../../../dataset/enum/Common'
 import { ControlComponent, ControlType } from '../../../dataset/enum/Control'
 import { ElementType } from '../../../dataset/enum/Element'
 import { IElement } from '../../../interface/Element'
@@ -18,6 +19,28 @@ function getElementIndexByDragId(dragId: string, elementList: IElement[]) {
   return (<IDragElement[]>elementList).findIndex(el => el.dragId === dragId)
 }
 
+// 移动悬浮图片位置
+function moveImgPosition(
+  element: IElement,
+  evt: MouseEvent,
+  host: CanvasEvent
+) {
+  const draw = host.getDraw()
+  if (
+    element.imgDisplay === ImageDisplay.FLOAT_TOP ||
+    element.imgDisplay === ImageDisplay.FLOAT_BOTTOM
+  ) {
+    const moveX = evt.offsetX - host.mouseDownStartPosition!.x!
+    const moveY = evt.offsetY - host.mouseDownStartPosition!.y!
+    const imgFloatPosition = element.imgFloatPosition!
+    element.imgFloatPosition = {
+      x: imgFloatPosition.x + moveX,
+      y: imgFloatPosition.y + moveY
+    }
+  }
+  draw.getImageParticle().destroyFloatImage()
+}
+
 export function mouseup(evt: MouseEvent, host: CanvasEvent) {
   // 判断是否允许拖放
   if (host.isAllowDrop) {
@@ -42,13 +65,34 @@ export function mouseup(evt: MouseEvent, host: CanvasEvent) {
       range.startIndex >= cacheStartIndex &&
       range.endIndex <= cacheEndIndex
     ) {
+      // 清除渲染副作用
+      draw.clearSideEffect()
+      // 浮动元素拖拽需要提交历史
+      let isSubmitHistory = false
+      if (isCacheRangeCollapsed) {
+        // 图片移动
+        const dragElement = cacheElementList[cacheEndIndex]
+        if (dragElement.type === ElementType.IMAGE) {
+          moveImgPosition(dragElement, evt, host)
+          if (
+            dragElement.imgDisplay === ImageDisplay.FLOAT_TOP ||
+            dragElement.imgDisplay === ImageDisplay.FLOAT_BOTTOM
+          ) {
+            draw.getPreviewer().drawResizer(dragElement)
+            isSubmitHistory = true
+          } else {
+            const cachePosition = cachePositionList[cacheEndIndex]
+            draw.getPreviewer().drawResizer(dragElement, cachePosition)
+          }
+        }
+      }
       rangeManager.replaceRange({
         ...cacheRange
       })
       draw.render({
         isSetCursor: false,
         isCompute: false,
-        isSubmitHistory: false
+        isSubmitHistory
       })
       return
     }
@@ -207,11 +251,35 @@ export function mouseup(evt: MouseEvent, host: CanvasEvent) {
       range.startTrIndex,
       range.endTrIndex
     )
+    // 清除渲染副作用
+    draw.clearSideEffect()
+    // 移动图片
+    let imgElement: IElement | null = null
+    if (isCacheRangeCollapsed) {
+      const elementList = draw.getElementList()
+      const dragElement = elementList[rangeEndIndex]
+      if (dragElement.type === ElementType.IMAGE) {
+        moveImgPosition(dragElement, evt, host)
+        imgElement = dragElement
+      }
+    }
     // 重新渲染
     draw.render({
       isSetCursor: false
     })
-    draw.clearSideEffect()
+    // 拖拽后渲染图片工具
+    if (imgElement) {
+      if (
+        imgElement.imgDisplay === ImageDisplay.FLOAT_TOP ||
+        imgElement.imgDisplay === ImageDisplay.FLOAT_BOTTOM
+      ) {
+        draw.getPreviewer().drawResizer(imgElement)
+      } else {
+        const dragPositionList = position.getPositionList()
+        const dragPosition = dragPositionList[rangeEndIndex]
+        draw.getPreviewer().drawResizer(imgElement, dragPosition)
+      }
+    }
   } else if (host.isAllowDrag) {
     // 如果是允许拖拽不允许拖放则光标重置
     host.mousedown(evt)

src/editor/core/i18n/lang/en.json

@@ -21,7 +21,9 @@
       "textWrap": "Text wrap",
       "textWrapType": {
         "embed": "Embed",
-        "upDown": "Up down"
+        "upDown": "Up down",
+        "floatTop": "Float above text",
+        "floatBottom": "Float below text"
       }
     },
     "table": {

src/editor/core/i18n/lang/zh-CN.json

@@ -21,7 +21,9 @@
       "textWrap": "文字环绕",
       "textWrapType": {
         "embed": "嵌入型",
-        "upDown": "上下型环绕"
+        "upDown": "上下型环绕",
+        "floatTop": "浮于文字上方",
+        "floatBottom": "衬于文字下方"
       }
     },
     "table": {

src/editor/core/position/Position.ts

@@ -1,10 +1,12 @@
 import { ElementType, RowFlex, VerticalAlign } from '../..'
 import { ZERO } from '../../dataset/constant/Common'
-import { ControlComponent, ImageDisplay } from '../../dataset/enum/Control'
+import { ControlComponent } from '../../dataset/enum/Control'
 import {
   IComputePageRowPositionPayload,
   IComputePageRowPositionResult,
-  IComputeRowPositionPayload
+  IComputeRowPositionPayload,
+  IFloatPosition,
+  IGetFloatPositionByXYPayload
 } from '../../interface/Position'
 import { IEditorOption } from '../../interface/Editor'
 import { IElement, IElementPosition } from '../../interface/Element'
@@ -16,17 +18,20 @@ import {
 import { Draw } from '../draw/Draw'
 import { EditorMode, EditorZone } from '../../dataset/enum/Editor'
 import { deepClone } from '../../utils'
+import { ImageDisplay } from '../../dataset/enum/Common'
 
 export class Position {
   private cursorPosition: IElementPosition | null
   private positionContext: IPositionContext
   private positionList: IElementPosition[]
+  private floatPositionList: IFloatPosition[]
 
   private draw: Draw
   private options: Required<IEditorOption>
 
   constructor(draw: Draw) {
     this.positionList = []
+    this.floatPositionList = []
     this.cursorPosition = null
     this.positionContext = {
       isTable: false,
@@ -37,6 +42,10 @@ export class Position {
     this.options = draw.getOptions()
   }
 
+  public getFloatPositionList(): IFloatPosition[] {
+    return this.floatPositionList
+  }
+
   public getTablePositionList(
     sourceElementList: IElement[]
   ): IElementPosition[] {
@@ -149,6 +158,28 @@ export class Position {
             rightBottom: [x + metrics.width, y + curRow.height]
           }
         }
+        // 缓存浮动元素信息
+        if (
+          element.imgDisplay === ImageDisplay.FLOAT_TOP ||
+          element.imgDisplay === ImageDisplay.FLOAT_BOTTOM
+        ) {
+          // 浮动元素使用上一位置信息
+          const prePosition = positionList[positionList.length - 1]
+          if (prePosition) {
+            positionItem.metrics = prePosition.metrics
+            positionItem.coordinate = prePosition.coordinate
+          }
+          this.floatPositionList.push({
+            pageNo,
+            element,
+            position: positionItem,
+            isTable: payload.isTable,
+            index: payload.index,
+            tdIndex: payload.tdIndex,
+            trIndex: payload.trIndex,
+            tdValueIndex: index
+          })
+        }
         positionList.push(positionItem)
         index++
         x += metrics.width
@@ -170,7 +201,11 @@ export class Position {
                 startIndex: 0,
                 startX: (td.x! + tdPadding[3]) * scale + tablePreX,
                 startY: (td.y! + tdPadding[0]) * scale + tablePreY,
-                innerWidth: (td.width! - tdPaddingWidth) * scale
+                innerWidth: (td.width! - tdPaddingWidth) * scale,
+                isTable: true,
+                index: index - 1,
+                tdIndex: d,
+                trIndex: t
               })
               // 垂直对齐方式
               if (
@@ -217,6 +252,7 @@ export class Position {
   public computePositionList() {
     // 置空原位置信息
     this.positionList = []
+    this.floatPositionList = []
     // 按每页行计算
     const innerWidth = this.draw.getInnerWidth()
     const pageRowList = this.draw.getPageRowList()
@@ -291,6 +327,15 @@ export class Position {
     const curPageNo = payload.pageNo ?? this.draw.getPageNo()
     const isMainActive = zoneManager.isMainActive()
     const positionNo = isMainActive ? curPageNo : 0
+    // 验证浮于文字上方元素
+    if (!isTable) {
+      const floatTopPosition = this.getFloatPositionByXY({
+        ...payload,
+        imgDisplay: ImageDisplay.FLOAT_TOP
+      })
+      if (floatTopPosition) return floatTopPosition
+    }
+    // 普通元素
     for (let j = 0; j < positionList.length; j++) {
       const {
         index,
@@ -388,6 +433,14 @@ export class Position {
         }
       }
     }
+    // 验证衬于文字下方元素
+    if (!isTable) {
+      const floatBottomPosition = this.getFloatPositionByXY({
+        ...payload,
+        imgDisplay: ImageDisplay.FLOAT_BOTTOM
+      })
+      if (floatBottomPosition) return floatBottomPosition
+    }
     // 非命中区域
     let isLastArea = false
     let curPositionIndex = -1
@@ -493,6 +546,55 @@ export class Position {
     }
   }
 
+  public getFloatPositionByXY(
+    payload: IGetFloatPositionByXYPayload
+  ): ICurrentPosition | void {
+    const { x, y } = payload
+    for (let f = 0; f < this.floatPositionList.length; f++) {
+      const {
+        position,
+        element,
+        isTable,
+        index,
+        trIndex,
+        tdIndex,
+        tdValueIndex
+      } = this.floatPositionList[f]
+      if (
+        element.type === ElementType.IMAGE &&
+        element.imgDisplay === payload.imgDisplay
+      ) {
+        const imgFloatPosition = element.imgFloatPosition!
+        if (
+          x >= imgFloatPosition.x &&
+          x <= imgFloatPosition.x + element.width! &&
+          y >= imgFloatPosition.y &&
+          y <= imgFloatPosition.y + element.height!
+        ) {
+          if (isTable) {
+            return {
+              index: index!,
+              isDirectHit: true,
+              isImage: true,
+              isTable,
+              trIndex,
+              tdIndex,
+              tdValueIndex,
+              tdId: element.tdId,
+              trId: element.trId,
+              tableId: element.tableId
+            }
+          }
+          return {
+            index: position.index,
+            isDirectHit: true,
+            isImage: true
+          }
+        }
+      }
+    }
+  }
+
   public adjustPositionContext(
     payload: IGetPositionByXYPayload
   ): ICurrentPosition | null {

src/editor/dataset/constant/ContextMenu.ts

@@ -23,7 +23,9 @@ export const INTERNAL_CONTEXT_MENU_KEY = {
     SAVE_AS: 'imageSaveAs',
     TEXT_WRAP: 'imageTextWrap',
     TEXT_WRAP_EMBED: 'imageTextWrapEmbed',
-    TEXT_WRAP_UP_DOWN: 'imageTextWrapUpDown'
+    TEXT_WRAP_UP_DOWN: 'imageTextWrapUpDown',
+    TEXT_WRAP_FLOAT_TOP: 'imageTextWrapFloatTop',
+    TEXT_WRAP_FLOAT_BOTTOM: 'imageTextWrapFloatBottom'
   },
   TABLE: {
     BORDER: 'border',

src/editor/dataset/constant/Element.ts

@@ -64,7 +64,9 @@ export const EDITOR_ELEMENT_ZIP_ATTR: Array<keyof IElement> = [
   'listStyle',
   'listWrap',
   'groupIds',
-  'conceptId'
+  'conceptId',
+  'imgDisplay',
+  'imgFloatPosition'
 ]
 
 export const TABLE_TD_ZIP_ATTR: Array<keyof ITd> = [

src/editor/dataset/enum/Common.ts

@@ -8,3 +8,10 @@ export enum NumberType {
   ARABIC = 'arabic',
   CHINESE = 'chinese'
 }
+
+export enum ImageDisplay {
+  INLINE = 'inline',
+  BLOCK = 'block',
+  FLOAT_TOP = 'float-top',
+  FLOAT_BOTTOM = 'float-bottom'
+}

src/editor/dataset/enum/Control.ts

@@ -12,11 +12,6 @@ export enum ControlComponent {
   CHECKBOX = 'checkbox'
 }
 
-export enum ImageDisplay {
-  INLINE = 'inline',
-  BLOCK = 'block'
-}
-
 // 控件内容缩进方式
 export enum ControlIndentation {
   ROW_START = 'rowStart', // 从行起始位置缩进

src/editor/index.ts

@@ -6,6 +6,7 @@ import { Command } from './core/command/Command'
 import { CommandAdapt } from './core/command/CommandAdapt'
 import { Listener } from './core/listener/Listener'
 import { RowFlex } from './dataset/enum/Row'
+import { ImageDisplay } from './dataset/enum/Common'
 import { ElementType } from './dataset/enum/Element'
 import { formatElementList } from './utils/element'
 import { Register } from './core/register/Register'
@@ -27,11 +28,7 @@ import { IHeader } from './interface/Header'
 import { IWatermark } from './interface/Watermark'
 import { defaultHeaderOption } from './dataset/constant/Header'
 import { defaultWatermarkOption } from './dataset/constant/Watermark'
-import {
-  ControlIndentation,
-  ControlType,
-  ImageDisplay
-} from './dataset/enum/Control'
+import { ControlIndentation, ControlType } from './dataset/enum/Control'
 import { defaultControlOption } from './dataset/constant/Control'
 import { IControlOption } from './interface/Control'
 import { ICheckboxOption } from './interface/Checkbox'

src/editor/interface/Draw.ts

@@ -1,3 +1,4 @@
+import { ImageDisplay } from '../dataset/enum/Common'
 import { EditorMode, EditorZone } from '../dataset/enum/Editor'
 import { IElement, IElementPosition } from './Element'
 import { IRow } from './Row'
@@ -32,6 +33,11 @@ export interface IDrawRowPayload {
   zone?: EditorZone
 }
 
+export interface IDrawFloatPayload {
+  pageNo: number
+  imgDisplay: ImageDisplay
+}
+
 export interface IDrawPagePayload {
   elementList: IElement[]
   positionList: IElementPosition[]

src/editor/interface/Element.ts

@@ -1,4 +1,5 @@
-import { ControlComponent, ImageDisplay } from '../dataset/enum/Control'
+import { ImageDisplay } from '../dataset/enum/Common'
+import { ControlComponent } from '../dataset/enum/Control'
 import { ElementType } from '../dataset/enum/Element'
 import { ListStyle, ListType } from '../dataset/enum/List'
 import { RowFlex } from '../dataset/enum/Row'
@@ -100,6 +101,10 @@ export interface IDateElement {
 
 export interface IImageElement {
   imgDisplay?: ImageDisplay
+  imgFloatPosition?: {
+    x: number
+    y: number
+  }
 }
 
 export interface IBlockElement {

src/editor/interface/Position.ts

@@ -1,4 +1,4 @@
-import { IElement } from '..'
+import { IElement, ImageDisplay } from '..'
 import { EditorZone } from '../dataset/enum/Editor'
 import { IElementPosition } from './Element'
 import { IRow } from './Row'
@@ -6,6 +6,8 @@ import { ITd } from './table/Td'
 
 export interface ICurrentPosition {
   index: number
+  x?: number
+  y?: number
   isCheckbox?: boolean
   isControl?: boolean
   isImage?: boolean
@@ -32,6 +34,10 @@ export interface IGetPositionByXYPayload {
   positionList?: IElementPosition[]
 }
 
+export type IGetFloatPositionByXYPayload = IGetPositionByXYPayload & {
+  imgDisplay: ImageDisplay
+}
+
 export interface IPositionContext {
   isTable: boolean
   isCheckbox?: boolean
@@ -58,6 +64,11 @@ export interface IComputePageRowPositionPayload {
   startX: number
   startY: number
   innerWidth: number
+  isTable?: boolean
+  index?: number
+  tdIndex?: number
+  trIndex?: number
+  tdValueIndex?: number
 }
 
 export interface IComputePageRowPositionResult {
@@ -65,3 +76,14 @@ export interface IComputePageRowPositionResult {
   y: number
   index: number
 }
+
+export interface IFloatPosition {
+  pageNo: number
+  element: IElement
+  position: IElementPosition
+  isTable?: boolean
+  index?: number
+  tdIndex?: number
+  trIndex?: number
+  tdValueIndex?: number
+}