feat:add continuity page mode

src/assets/images/page-mode.svg

@@ -0,0 +1 @@
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g transform="translate(2 1)"><rect stroke="#3D4757" x=".5" y=".5" width="11" height="8" rx="1"/><path fill="#3D4757" fill-rule="nonzero" d="M2 3h4v1H2zm0 2h8v1H2z"/></g><g fill="#3D4757" fill-rule="nonzero"><path d="M14 15h-1v-5H3v5H2V9h12v6z"/><path d="M4 12h4v1H4zm0 2h8v1H4z"/></g></g></svg>

src/editor/core/command/Command.ts

@@ -1,5 +1,5 @@
 import { IElement } from '../..'
-import { EditorMode } from '../../dataset/enum/Editor'
+import { EditorMode, PageMode } from '../../dataset/enum/Editor'
 import { RowFlex } from '../../dataset/enum/Row'
 import { IDrawImagePayload, IPainterOptions } from '../../interface/Draw'
 import { IEditorResult } from '../../interface/Editor'
@@ -57,6 +57,7 @@ export class Command {
   private static print: Function
   private static getImage: Function
   private static getValue: Function
+  private static pageMode: Function
   private static pageScaleRecovery: Function
   private static pageScaleMinus: Function
   private static pageScaleAdd: Function
@@ -111,6 +112,7 @@ export class Command {
     Command.print = adapt.print.bind(adapt)
     Command.getImage = adapt.getImage.bind(adapt)
     Command.getValue = adapt.getValue.bind(adapt)
+    Command.pageMode = adapt.pageMode.bind(adapt)
     Command.pageScaleRecovery = adapt.pageScaleRecovery.bind(adapt)
     Command.pageScaleMinus = adapt.pageScaleMinus.bind(adapt)
     Command.pageScaleAdd = adapt.pageScaleAdd.bind(adapt)
@@ -313,7 +315,11 @@ export class Command {
     return Command.getValue()
   }
 
-  // 页面缩放
+  // 页面模式、页面缩放
+  public executePageMode(payload: PageMode) {
+    return Command.pageMode(payload)
+  }
+
   public executePageScaleRecovery() {
     return Command.pageScaleRecovery()
   }

src/editor/core/command/CommandAdapt.ts

@@ -2,7 +2,7 @@ import { WRAP, ZERO } from '../../dataset/constant/Common'
 import { EDITOR_ELEMENT_STYLE_ATTR } from '../../dataset/constant/Element'
 import { defaultWatermarkOption } from '../../dataset/constant/Watermark'
 import { ControlComponent } from '../../dataset/enum/Control'
-import { EditorContext, EditorMode } from '../../dataset/enum/Editor'
+import { EditorContext, EditorMode, PageMode } from '../../dataset/enum/Editor'
 import { ElementType } from '../../dataset/enum/Element'
 import { ElementStyleKey } from '../../dataset/enum/ElementStyle'
 import { RowFlex } from '../../dataset/enum/Row'
@@ -1243,6 +1243,10 @@ export class CommandAdapt {
     return this.draw.getValue()
   }
 
+  public pageMode(payload: PageMode) {
+    this.draw.setPageMode(payload)
+  }
+
   public pageScaleRecovery() {
     const { scale } = this.options
     if (scale !== 1) {

src/editor/core/draw/Draw.ts

@@ -34,7 +34,7 @@ import { SubscriptParticle } from './particle/Subscript'
 import { SeparatorParticle } from './particle/Separator'
 import { PageBreakParticle } from './particle/PageBreak'
 import { Watermark } from './frame/Watermark'
-import { EditorMode } from '../../dataset/enum/Editor'
+import { EditorMode, PageMode } from '../../dataset/enum/Editor'
 import { Control } from './control/Control'
 import { zipElementList } from '../../utils/element'
 import { CheckboxParticle } from './particle/CheckboxParticle'
@@ -97,7 +97,7 @@ export class Draw {
     this.pageList = []
     this.ctxList = []
     this.pageNo = 0
-    this.mode = options.defaultMode
+    this.mode = options.mode
     this.options = options
     this.elementList = elementList
     this.listener = listener
@@ -168,6 +168,16 @@ export class Draw {
     return Math.floor(this.options.height * this.options.scale)
   }
 
+  public getCanvasWidth(): number {
+    const page = this.getPage()
+    return page.width
+  }
+
+  public getCanvasHeight(): number {
+    const page = this.getPage()
+    return page.height
+  }
+
   public getInnerWidth(): number {
     const width = this.getWidth()
     const margins = this.getMargins()
@@ -394,6 +404,26 @@ export class Draw {
     })
   }
 
+  public setPageMode(payload: PageMode) {
+    if (!payload || this.options.pageMode === payload) return
+    this.options.pageMode = payload
+    // 纸张大小重置
+    if (payload === PageMode.PAGING) {
+      const { height } = this.options
+      const dpr = window.devicePixelRatio
+      const canvas = this.pageList[0]
+      canvas.style.height = `${height}px`
+      canvas.height = height * dpr
+    }
+    this.render({ isSubmitHistory: false, isSetCursor: false })
+    // 回调
+    setTimeout(() => {
+      if (this.listener.pageModeChange) {
+        this.listener.pageModeChange(payload)
+      }
+    })
+  }
+
   public setPageScale(payload: number) {
     this.options.scale = payload
     const width = this.getWidth()
@@ -855,12 +885,12 @@ export class Draw {
   }
 
   private _drawPage(positionList: IElementPosition[], rowList: IRow[], pageNo: number) {
-    const width = this.getWidth()
-    const height = this.getHeight()
+    const { pageMode } = this.options
     const margins = this.getMargins()
     const innerWidth = this.getInnerWidth()
     const ctx = this.ctxList[pageNo]
-    ctx.clearRect(0, 0, width, height)
+    const pageDom = this.pageList[pageNo]
+    ctx.clearRect(0, 0, pageDom.width, pageDom.height)
     // 绘制背景
     this.background.render(ctx)
     // 绘制页边距
@@ -891,12 +921,13 @@ export class Draw {
       this.search.render(ctx, pageNo)
     }
     // 绘制水印
-    if (this.options.watermark.data) {
+    if (pageMode !== PageMode.CONTINUITY && this.options.watermark.data) {
       this.waterMark.render(ctx)
     }
   }
 
   public render(payload?: IDrawOption) {
+    const { pageMode } = this.options
     const {
       isSubmitHistory = true,
       isSetCursor = true,
@@ -922,15 +953,32 @@ export class Draw {
     let pageHeight = marginHeight
     let pageNo = 0
     const pageRowList: IRow[][] = [[]]
-    for (let i = 0; i < this.rowList.length; i++) {
-      const row = this.rowList[i]
-      if (row.height + pageHeight > height || this.rowList[i - 1]?.isPageBreak) {
-        pageHeight = marginHeight + row.height
-        pageRowList.push([row])
-        pageNo++
+    if (pageMode === PageMode.CONTINUITY) {
+      pageRowList[0] = this.rowList
+      // 重置高度
+      pageHeight += this.rowList.reduce((pre, cur) => pre + cur.height, 0)
+      const dpr = window.devicePixelRatio
+      const pageDom = this.pageList[0]
+      const pageDomHeight = Number(pageDom.style.height.replace('px', ''))
+      if (pageHeight > pageDomHeight) {
+        pageDom.style.height = `${pageHeight}px`
+        pageDom.height = pageHeight * dpr
       } else {
-        pageHeight += row.height
-        pageRowList[pageNo].push(row)
+        const reduceHeight = pageHeight < height ? height : pageHeight
+        pageDom.style.height = `${reduceHeight}px`
+        pageDom.height = reduceHeight * dpr
+      }
+    } else {
+      for (let i = 0; i < this.rowList.length; i++) {
+        const row = this.rowList[i]
+        if (row.height + pageHeight > height || this.rowList[i - 1]?.isPageBreak) {
+          pageHeight = marginHeight + row.height
+          pageRowList.push([row])
+          pageNo++
+        } else {
+          pageHeight += row.height
+          pageRowList[pageNo].push(row)
+        }
       }
     }
     // 绘制元素

src/editor/core/draw/frame/Margin.ts

@@ -1,3 +1,4 @@
+import { PageMode } from '../../../dataset/enum/Editor'
 import { IEditorOption } from '../../../interface/Editor'
 import { Draw } from '../Draw'
 
@@ -12,9 +13,11 @@ export class Margin {
   }
 
   public render(ctx: CanvasRenderingContext2D) {
-    const { marginIndicatorColor } = this.options
+    const { marginIndicatorColor, pageMode } = this.options
     const width = this.draw.getWidth()
-    const height = this.draw.getHeight()
+    const height = pageMode === PageMode.CONTINUITY
+      ? this.draw.getCanvasHeight()
+      : this.draw.getHeight()
     const margins = this.draw.getMargins()
     const marginIndicatorSize = this.draw.getMarginIndicatorSize()
     ctx.save()

src/editor/core/draw/frame/PageNumber.ts

@@ -1,3 +1,4 @@
+import { PageMode } from '../../../dataset/enum/Editor'
 import { IEditorOption } from '../../../interface/Editor'
 import { Draw } from '../Draw'
 
@@ -12,9 +13,11 @@ export class PageNumber {
   }
 
   public render(ctx: CanvasRenderingContext2D, pageNo: number) {
-    const { pageNumberSize, pageNumberFont, scale } = this.options
+    const { pageNumberSize, pageNumberFont, scale, pageMode } = this.options
     const width = this.draw.getWidth()
-    const height = this.draw.getHeight()
+    const height = pageMode === PageMode.CONTINUITY
+      ? this.draw.getCanvasHeight()
+      : this.draw.getHeight()
     const pageNumberBottom = this.draw.getPageNumberBottom()
     ctx.save()
     ctx.fillStyle = '#00000'

src/editor/core/listener/Listener.ts

@@ -2,6 +2,7 @@ import {
   IContentChange,
   IControlChange,
   IIntersectionPageNoChange,
+  IPageModeChange,
   IPageScaleChange,
   IPageSizeChange,
   IRangeStyleChange,
@@ -19,6 +20,7 @@ export class Listener {
   public saved: ISaved | null
   public contentChange: IContentChange | null
   public controlChange: IControlChange | null
+  public pageModeChange: IPageModeChange | null
 
   constructor() {
     this.rangeStyleChange = null
@@ -29,6 +31,7 @@ export class Listener {
     this.saved = null
     this.contentChange = null
     this.controlChange = null
+    this.pageModeChange = null
   }
 
 }

src/editor/dataset/enum/Editor.ts

@@ -16,4 +16,9 @@ export enum EditorMode {
   EDIT = 'edit',
   CLEAN = 'clean',
   READONLY = 'readonly'
+}
+
+export enum PageMode {
+  PAGING = 'paging',
+  CONTINUITY = 'continuity'
 }

src/editor/index.ts

@@ -13,7 +13,7 @@ import { globalMenus } from './core/contextmenu/menus/globalMenus'
 import { ContextMenu } from './core/contextmenu/ContextMenu'
 import { tableMenus } from './core/contextmenu/menus/tableMenus'
 import { IContextMenuContext, IRegisterContextMenu } from './interface/contextmenu/ContextMenu'
-import { EditorComponent, EditorMode } from './dataset/enum/Editor'
+import { EditorComponent, EditorMode, PageMode } from './dataset/enum/Editor'
 import { EDITOR_COMPONENT } from './dataset/constant/Editor'
 import { IHeader } from './interface/Header'
 import { IWatermark } from './interface/Watermark'
@@ -51,7 +51,7 @@ export default class Editor {
     }
 
     const editorOptions: DeepRequired<IEditorOption> = {
-      defaultMode: EditorMode.EDIT,
+      mode: EditorMode.EDIT,
       defaultType: 'TEXT',
       defaultFont: 'Yahei',
       defaultSize: 16,
@@ -77,6 +77,7 @@ export default class Editor {
       marginIndicatorSize: 35,
       marginIndicatorColor: '#BABABA',
       margins: [100, 120, 100, 120],
+      pageMode: PageMode.PAGING,
       tdPadding: 5,
       defaultTdHeight: 40,
       defaultHyperlinkColor: '#0000FF',
@@ -116,7 +117,8 @@ export {
   ElementType,
   ControlType,
   EditorComponent,
-  EDITOR_COMPONENT
+  EDITOR_COMPONENT,
+  PageMode
 }
 
 // 对外类型

src/editor/interface/Editor.ts

@@ -1,12 +1,12 @@
 import { IElement } from '..'
-import { EditorMode } from '../dataset/enum/Editor'
+import { EditorMode, PageMode } from '../dataset/enum/Editor'
 import { ICheckboxOption } from './Checkbox'
 import { IControlOption } from './Control'
 import { IHeader } from './Header'
 import { IWatermark } from './Watermark'
 
 export interface IEditorOption {
-  defaultMode?: EditorMode;
+  mode?: EditorMode;
   defaultType?: string;
   defaultFont?: string;
   defaultSize?: number;
@@ -32,6 +32,7 @@ export interface IEditorOption {
   marginIndicatorSize?: number;
   marginIndicatorColor?: string,
   margins?: [top: number, right: number, bottom: number, left: number],
+  pageMode?: PageMode;
   tdPadding?: number;
   defaultTdHeight?: number;
   defaultHyperlinkColor?: string;

src/editor/interface/Listener.ts

@@ -1,4 +1,4 @@
-import { ElementType } from '..'
+import { ElementType, PageMode } from '..'
 import { RowFlex } from '../dataset/enum/Row'
 import { IControl } from './Control'
 import { IEditorResult } from './Editor'
@@ -34,4 +34,6 @@ export type ISaved = (payload: IEditorResult) => void
 
 export type IContentChange = () => void
 
-export type IControlChange = (payload: IControl | null) => void
+export type IControlChange = (payload: IControl | null) => void
+
+export type IPageModeChange = (payload: PageMode) => void

src/main.ts

@@ -1,7 +1,7 @@
 import { data, options } from './mock'
 import './style.css'
 import prism from 'prismjs'
-import Editor, { ControlType, EditorMode, ElementType, IElement } from './editor'
+import Editor, { ControlType, EditorMode, ElementType, IElement, PageMode } from './editor'
 import { Dialog } from './components/dialog/Dialog'
 import { formatPrismToken } from './utils/prism'
 
@@ -586,7 +586,17 @@ window.onload = function () {
     instance.command.executePrint()
   }
 
-  // 6. 纸张缩放
+  // 6. 页面模式 | 纸张缩放
+  const pageModeDom = document.querySelector<HTMLDivElement>('.page-mode')!
+  const pageModeOptionsDom = pageModeDom.querySelector<HTMLDivElement>('.options')!
+  pageModeDom.onclick = function () {
+    pageModeOptionsDom.classList.toggle('visible')
+  }
+  pageModeOptionsDom.onclick = function (evt) {
+    const li = evt.target as HTMLLIElement
+    instance.command.executePageMode(<PageMode>li.dataset.pageMode!)
+  }
+
   document.querySelector<HTMLDivElement>('.page-scale-percentage')!.onclick = function () {
     console.log('page-scale-recovery')
     instance.command.executePageScaleRecovery()
@@ -738,6 +748,12 @@ window.onload = function () {
     })
   }
 
+  instance.listener.pageModeChange = function (payload) {
+    const activeMode = pageModeOptionsDom.querySelector<HTMLLIElement>(`[data-page-mode='${payload}']`)!
+    pageModeOptionsDom.querySelectorAll('li').forEach(li => li.classList.remove('active'))
+    activeMode.classList.add('active')
+  }
+
   instance.listener.saved = function (payload) {
     console.log('elementList: ', payload)
   }

src/style.css

@@ -551,7 +551,6 @@ ul {
   justify-content: space-between;
   background: #f2f4f7;
   z-index: 9;
-  overflow: hidden;
   position: fixed;
   bottom: 0;
   left: 0;
@@ -560,6 +559,60 @@ ul {
   box-sizing: border-box;
 }
 
+.footer>div:first-child {
+  display: flex;
+  align-items: center;
+}
+
+.footer .page-mode {
+  padding: 1px;
+  position: relative;
+}
+
+.footer .page-mode i {
+  width: 16px;
+  height: 16px;
+  margin-right: 5px;
+  cursor: pointer;
+  display: inline-block;
+  background-image: url('./assets/images/page-mode.svg');
+}
+
+.footer .page-mode .options {
+  width: 70px;
+  position: absolute;
+  left: 0;
+  bottom: 25px;
+  padding: 10px;
+  background: #fff;
+  font-size: 14px;
+  box-shadow: 0 2px 12px 0 rgb(56 56 56 / 20%);
+  border: 1px solid #e2e6ed;
+  border-radius: 2px;
+  display: none;
+}
+
+.footer .page-mode .options.visible {
+  display: block;
+}
+
+.footer .page-mode .options li {
+  padding: 5px;
+  margin: 5px 0;
+  user-select: none;
+  transition: all .3s;
+  text-align: center;
+  cursor: pointer;
+}
+
+.footer .page-mode .options li:hover {
+  background-color: #ebecef;
+}
+
+.footer .page-mode .options li.active {
+  background-color: #e2e6ed;
+}
+
 .footer>div:first-child>span {
   display: inline-block;
   margin-right: 5px;