添加画布接口

src/renderer/src/api/eTextbook/index.js

@@ -0,0 +1,35 @@
+import request from '@/utils/request'
+
+// 新增pdf圈点勾画
+export const addsmartBookMark = (params) => {
+  return request({
+    url: '/smarttalk/bookMark/addSmartBookMark',
+    method: 'post',
+    data:params
+  })
+}
+
+// 修改pdf圈点勾画
+export const updateSmartBookMarkContent = (params) => {
+  return request({
+    url: '/smarttalk/bookMark/updateSmartBookMarkContent',
+    method: 'post',
+    data:params
+  })
+}
+
+// 根据书id获取pdf圈点勾画
+export const getBookMarkById = (bookId) => {
+  return request({
+    url: '/smarttalk/bookMark/' + bookId,
+    method: 'get'
+  })
+}
+
+//根据id删除对应页数
+export function deleteBookMark(ids) {
+  return request({
+    url: '/smarttalk/bookMark/' + ids,
+    method: 'delete'
+  })
+}

src/renderer/src/components/pdf/index.vue

@@ -1,16 +1,17 @@
-<template>
+pdfAdnFabric<template>
   <div class="canvasitem">
-    <div class="pdfAdnFabric" id="pdfAdnFabric"  @touchstart="handleTouchStart">
+    <div class="pdfAdnFabric" id="pdfAdnFabric" @touchstart="handleTouchStart">
       <!-- @touchmove="handleTouchMove"
-    @touchend="handleTouchEnd"
+            @touchend="handleTouchEnd"
-    @mousedown="handleMouseDown"
+            @mousedown="handleMouseDown"
-    @mousemove="handleMouseMove"
+            @mousemove="handleMouseMove"
-    @mouseup="handleMouseUp" -->
+            @mouseup="handleMouseUp" -->
-      <div >
+      <div :class="ispointer ? 'ispointer' : ''">
-        <canvas ref="fabriccanvas" style="pointer-events: none;" />
+        <canvas ref="fabriccanvas" />
       </div>
-      <div v-if="props.pdfObj.numberOfPdf === 2" style="pointer-events: none;" >
+      <!-- style="pointer-events: none;" -->
-        <canvas ref="fabriccanvas1"  />
+      <div v-if="props.pdfObj.numberOfPdf === 2" :class="ispointer ? 'ispointer' : ''">
+        <canvas ref="fabriccanvas1" />
       </div>
     </div>
   </div>
@@ -30,8 +31,8 @@ import {
 // import { fabric } from 'fabric'
 import { ElMessage } from 'element-plus'
 import { handleevent, savecanvsStore, initcanvasdata, displayData } from '@/utils/pdfAndFabric'
-import {fabricVue, TYPES} from '@/plugins/fabric'
+import { fabricVue, TYPES } from '@/plugins/fabric'
-
+import { updateSmartBookMarkContent, addsmartBookMark,getBookMarkById } from '@/api/eTextbook/index'
 const props = defineProps({
   pdfObj: {
     type: Object,
@@ -42,9 +43,9 @@ const props = defineProps({
     }
   }
 })
+const ispointer = ref(false) //是否画笔模式
 // canvas的所有数据
 const canvsStore = reactive({
-  id: 'xxxx',
   pageArr: []
 })
 const fabriccanvas = ref(null)
@@ -63,9 +64,9 @@ const renderPage = async (canvasobj) => {
   const pdf = await pdfjsLib.getDocument(props.pdfObj.pdfUrl).promise
   // 渲染当前页
   const page = await pdf.getPage(canvasobj.page)
-  var screenWidth = window.innerWidth/2-100;
+  var screenWidth = window.innerWidth / 2 - 100
-  var screenHeight = window.innerHeight;
+  var screenHeight = window.innerHeight
-  const viewport = page.getViewport({ scale:2})
+  const viewport = page.getViewport({ scale: 2 })
 
   const canvasElement = canvasobj.canvas
   canvasElement.width = viewport.width
@@ -74,7 +75,7 @@ const renderPage = async (canvasobj) => {
     canvasContext: canvasobj.context,
     viewport: viewport
   }
-  console.log(renderContext,22222222222222222222)
+  // console.log(renderContext,22222222222222222222)
 
   page.render(renderContext).promise.then((res) => {
     const img = document.createElement('img')
@@ -94,7 +95,6 @@ const renderPage = async (canvasobj) => {
           canvas1FabricVue.value.canvas.setWidth(screenWidth)
           canvas1FabricVue.value.canvas.setHeight(screenHeight)
           displayData(canvas1FabricVue, canvsStore, canvasobj, fabric, img)
-
         }
       } else {
         canvasFabricVue.value.canvas.setHeight(screenHeight)
@@ -102,7 +102,7 @@ const renderPage = async (canvasobj) => {
       }
       img.remove()
     }
-      // 判断imgarr的JSONdata在canvsStore.pageArr有没有
+    // 判断imgarr的JSONdata在canvsStore.pageArr有没有
     //   canvsStore.pageArr.forEach((item) => {
     //   if (item.page == canvasobj.page) {
     //     imgarr.value.forEach((img) => {
@@ -123,22 +123,52 @@ const loadPdf = async (canvasobj) => {
 }
 
 const initPdf = async (type = 'default') => {
-  if(imgarr.value?.length){
+  imgarr.value.forEach((a) => {
-    
+    if (a.index == 0) {
-  }
+      a.JSONdata = canvasFabricVue.value.canvas.toJSON()
-  imgarr.value.forEach(a=>{
+    } else {
-    if(a.index==0){
+      a.JSONdata = canvas1FabricVue.value.canvas.toJSON()
-      a.JSONdata=canvasFabricVue.value.canvas.toJSON()
-    }else{
-      a.JSONdata=canvas1FabricVue.value.canvas.toJSON()
     }
   })
-  // 保存数据
+  if (type != 'default') {
-   savecanvsStore(imgarr, canvsStore)
+    const nameMap = new Map(canvsStore.pageArr.map((item) => [item.page, item.id]))
+    // 创建一个用于存储所有异步操作的数组
+    let promises = []
+    imgarr.value.forEach((item) => {
+      if (nameMap.has(item.page)) {
+        const params = {
+          id: nameMap.get(item.page),
+          contentData: JSON.stringify(item.JSONdata.objects)
+        }
+        promises.push(updateSmartBookMarkContent([params]))  
+      } else {
+        promises.push(addsmartBookMark({
+          pageNum: item.page,
+          contentData: JSON.stringify(item.JSONdata.objects),
+          bookId: props.pdfObj.bookId,
+          type: '教材',
+          source: 'smarttalk'
+        }))
         
-  if(props.pdfObj.numberOfPdf == 1){
+      }
+    })
+    Promise.all(promises).then(res=>{
+      getBookMarkById(props.pdfObj.bookId).then(res=>{
+            const pageArr=getUniqueArrayByLastOccurrence(res.data)
+            canvsStore.pageArr=[]
+            pageArr.forEach((a) => {
+              canvsStore.pageArr.push({ page: a.pageNum, id: a.id, JSONdata: a.contentData })
+            })
+          })
+    })
+  }
+  // 保存数据
+  //  savecanvsStore(imgarr, canvsStore)
+
+  if (props.pdfObj.numberOfPdf == 1) {
+    // imgarr.value[0]
     canvasFabricVue.value.history.clean()
-  }else{
+  } else {
     canvasFabricVue.value.history.clean()
     canvas1FabricVue.value.history.clean()
   }
@@ -179,77 +209,91 @@ const initPdf = async (type = 'default') => {
     }
   }
 }
+//根据page去重
+const getUniqueArrayByLastOccurrence=(array)=> {
+  const uniqueItems = array.reduce((acc, current) => {
+    // 使用 Map 来跟踪最后一个出现的 pageNum 和它的对象
+    acc.set(current.pageNum, current);
+    return acc;
+  }, new Map());
+
+  // 将 Map 的值转换回数组
+  const resultArray = Array.from(uniqueItems.values());
+
+  return resultArray;
+}
 const initPdfone = async () => {
-  setTimeout( async() => {
+  setTimeout(async () => {
     const option = { freeDrawingCursor: 'default' }
     const canvas2 = new fabricVue()
     await canvas2.initCanvas(fabriccanvas1.value, option)
-    canvas2.canvas.setWidth(window.innerWidth/2-100)
+    canvas2.canvas.setWidth(window.innerWidth / 2 - 100)
-    canvas1FabricVue.value=canvas2
+    canvas1FabricVue.value = canvas2
     await initPdf('addOnePage')
   }, 0)
-  
 }
 onMounted(async () => {
   try {
     const pdf = await pdfjsLib.getDocument(props.pdfObj.pdfUrl).promise
     numPagesTotal.value = pdf.numPages
+
     //   初始化fabriccanvas
-    const option = { freeDrawingCursor: 'default'}
+    const option = { freeDrawingCursor: 'default' }
     const canvas1 = new fabricVue()
+    // canvas1.boardConfig.mode= TYPES.ActionMode.OTHER
+    // canvas1.boardConfig.mode= TYPES.ActionMode.ERASE
     await canvas1.initCanvas(fabriccanvas.value, option)
-    canvas1.canvas.setWidth(window.innerWidth/2-100)
+    canvas1.canvas.setWidth(window.innerWidth / 2 - 100)
     // canvas1.canvas.isDrawingMode=false
-    canvas1.canvas.selectable = false;
+    canvasFabricVue.value = canvas1
-    canvas1.canvas.evented = false;
-    canvasFabricVue.value=canvas1
     const canvas2 = new fabricVue()
+    canvas2.boardConfig.mode = TYPES.ActionMode.DRAW
     await canvas2.initCanvas(fabriccanvas1.value, option)
-    canvas2.canvas.setWidth(window.innerWidth/2-100)
+    canvas2.canvas.setWidth(window.innerWidth / 2 - 100)
-    canvas2.canvas.isDrawingMode=false
+    // canvas2.canvas.isDrawingMode=false
-    canvas1FabricVue.value=canvas2
+    canvas1FabricVue.value = canvas2
-    window.test={canvas1,canvas2}
+    window.test = { canvas1, canvas2 }
     emit('update:numPagesTotal', pdf.numPages)
 
-    initPdf()
+    if (props.pdfObj.allPageData.length) {
-  }catch (error) {
+      props.pdfObj.allPageData.forEach((a) => {
+        if (a.pageNum == 1 || a.pageNum == 2) {
+          canvsStore.pageArr.push({ page: a.pageNum, id: a.id, JSONdata: a.contentData })
+        }
+      })
+    }
+    await initPdf()
+  } catch (error) {
     console.log(error)
     ElMessage.error('pdf文件错误')
   }
   // 监听2个canvas事件
   // handleevent(fabriccanvas.value, imgarr)
   // handleevent(fabriccanvas1.value, imgarr, 'two')
-  
 })
 const handleTouchStart = (e) => {
   console.log(e)
-
+}
-};
 
 const handleTouchMove = (e) => {
   console.log(e)
-};
+}
 
 const handleTouchEnd = (e) => {
   console.log(e)
-  
+}
-};
 
 const handleMouseDown = (e) => {
   // console.log(e)
-};
+}
 
 const handleMouseMove = (e) => {
   // console.log(e)
-
+}
- 
-};
 
 const handleMouseUp = (e) => {
   // console.log(e)
-
+}
-
-};
 
 defineExpose({
   initPdf,
@@ -273,4 +317,7 @@ defineExpose({
     margin-right: 10px;
   }
 }
+.ispointer {
+  pointer-events: none;
+}
 </style>

src/renderer/src/plugins/fabric/index.js

@@ -1615,6 +1615,7 @@ export class fabricVue {
         break
       case TYPES.ActionMode.OTHER: // 其他(工具选择)
         this.canvas.isDrawingMode = false
+        objectSet.selectable = false
         this.canvas.freeDrawingCursor = 'default'
         break
       default:

src/renderer/src/utils/pdfAndFabric.js

@@ -1,3 +1,4 @@
+
 // 所有事件
 export function handleevent(canvas, imgarr, type = 'defalut') {
   // // 鼠标按下
@@ -35,12 +36,12 @@ export function savecanvsStore(imgarr, canvsStore) {
 }
 //   重显数据
 export function displayData(FabricVue, canvsStore, canvasobj, fabric, img) {
+
   // 初始化
   const canvas = FabricVue.value.canvas
   if (!canvas) {
     return
   }
-  
   if (!canvsStore.pageArr.length) {
     fabric.Image.fromURL(
       img.src,
@@ -49,11 +50,15 @@ export function displayData(FabricVue, canvsStore, canvasobj, fabric, img) {
                 left: 0,
                 top: 0,
                 scaleX: canvas.width / img.width,
-                scaleY: canvas.height / img.height
+                scaleY: canvas.height / img.height,
+                erasable: false // 不允许擦拭
               })
         //  FabricVue.setBackgroundImage(image, FabricVue.renderAll.bind(FabricVue))
         // setBackgroundImage(image,FabricVue)
+            // canvas.setBackgroundImage(image, canvas.renderAll.bind(canvas));
+
         canvas.setBackgroundImage(image, () => {
+          canvas.renderAll.bind(canvas)
           FabricVue.value.render()
         })
       },
@@ -61,16 +66,44 @@ export function displayData(FabricVue, canvsStore, canvasobj, fabric, img) {
     )
     return
   }
-  canvsStore.pageArr.forEach((item) => {
+
-    //初始化
+ const isfind=findObjectByPage(canvsStore.pageArr,canvasobj.page)
-    if (item.page == canvasobj.page) {
+ if(isfind){
-      canvas.loadFromJSON(item.JSONdata, () => {
+  const canvdata={
-        // 在所有对象加载完成后重新渲染画布
+    objects:JSON.parse(isfind.JSONdata),
-        // Utils.handleCanvasJSONLoaded(canvas)
+     version: "5.3.0"
-        canvas.requestRenderAll() // 批量重绘
+  }
-      })
+  requestAnimationFrame(function () {
-    } else {
+    canvas.loadFromJSON(canvdata, () => {
-      // 使用 requestAnimationFrame 来更新画布，确保在下一帧进行重绘
+      // 在所有对象加载完成后重新渲染画布
+      // Utils.handleCanvasJSONLoaded(canvas)
+      canvas.requestRenderAll() // 批量重绘
+    })
+    fabric.Image.fromURL(
+      img.src,
+      (image) => {
+            image.set({
+                left: 0,
+                top: 0,
+                scaleX: canvas.width / img.width,
+                scaleY: canvas.height / img.height,
+                selectable: false,
+                evented: false,
+                erasable: false // 不允许擦拭
+              })
+        // canvas.setBackgroundImage(image, canvas.renderAll.bind(canvas));
+        canvas.setBackgroundImage(image, () => {
+          canvas.renderAll.bind(canvas)
+          FabricVue.value.render()
+        })
+      },
+      {crossOrigin: 'anonymous'}
+    )
+    // 渲染所有对象
+    canvas.requestRenderAll() // 批量重绘
+  })
+ }else{
+  // 使用 requestAnimationFrame 来更新画布，确保在下一帧进行重绘
       //  // 清除 Canvas
       // canvas.clear()
       requestAnimationFrame(function () {
@@ -81,9 +114,14 @@ export function displayData(FabricVue, canvsStore, canvasobj, fabric, img) {
                     left: 0,
                     top: 0,
                     scaleX: canvas.width / img.width,
-                    scaleY: canvas.height / img.height
+                    scaleY: canvas.height / img.height,
+                    selectable: false,
+                    evented: false,
+                    erasable: false // 不允许擦拭
                   })
+            // canvas.setBackgroundImage(image, canvas.renderAll.bind(canvas));
             canvas.setBackgroundImage(image, () => {
+              canvas.renderAll.bind(canvas)
               FabricVue.value.render()
             })
           },
@@ -92,8 +130,53 @@ export function displayData(FabricVue, canvsStore, canvasobj, fabric, img) {
         // 渲染所有对象
         canvas.requestRenderAll() // 批量重绘
       })
-    }
+ }
-  })
+
+  // canvsStore.pageArr.forEach((item) => {
+  //   //初始化
+  //   if (item.page == canvasobj.page) {
+  //     // item.JSONdata
+  //     canvas.loadFromJSON(JSON.parse(item.JSONdata), () => {
+  //       // 在所有对象加载完成后重新渲染画布
+  //       // Utils.handleCanvasJSONLoaded(canvas)
+  //       canvas.requestRenderAll() // 批量重绘
+  //     })
+  //   } else {
+     
+  //     // 使用 requestAnimationFrame 来更新画布，确保在下一帧进行重绘
+  //     //  // 清除 Canvas
+  //     // canvas.clear()
+  //     requestAnimationFrame(function () {
+  //       fabric.Image.fromURL(
+  //         img.src,
+  //         (image) => {
+  //               image.set({
+  //                   left: 0,
+  //                   top: 0,
+  //                   scaleX: canvas.width / img.width,
+  //                   scaleY: canvas.height / img.height,
+  //                   selectable: false,
+  //                   evented: false,
+  //                   erasable: false // 不允许擦拭
+  //                 })
+  //           // canvas.setBackgroundImage(image, canvas.renderAll.bind(canvas));
+  //           canvas.setBackgroundImage(image, () => {
+  //             canvas.renderAll.bind(canvas)
+  //             FabricVue.value.render()
+  //           })
+  //         },
+  //         {crossOrigin: 'anonymous'}
+  //       )
+  //       // 渲染所有对象
+  //       canvas.requestRenderAll() // 批量重绘
+  //     })
+  //   }
+  // })
+}
+// 找到page一样的
+const findObjectByPage=(array, page)=> {
+  const foundObject = array.find(obj => obj.page === page);
+  return foundObject || false;
 }
 
 //page 一样替换

src/renderer/src/views/classBegins/index.vue

@@ -33,19 +33,26 @@
 
 <script setup>
 import { ref, onMounted, watch, reactive } from 'vue'
+import { useRoute } from 'vue-router';
 import * as pdfjsLib from 'pdfjs-dist/legacy/build/pdf'
 import pdfCanvas from '@/components/pdf/index.vue'
 import { getStaticUrl } from '@/utils/tool'
 const { ipcRenderer } = require('electron')
+import { getBookMarkById } from '@/api/eTextbook/index'
+//  const getStaticUrl=(url)=>{
+//   return url
+//  }
 pdfjsLib.GlobalWorkerOptions.workerSrc = getStaticUrl('/lib/build/pdf.worker.mjs')
 
 // 传过去的参数
 const pdfObj = reactive({
   numberOfPdf: 2, //显示几页
   pdfUrl: getStaticUrl('aaa.pdf', 'user', 'selfFile', true),
+  allPageData:[],
+  bookId:null,
   numPages: 1 //当前页数
 })
-
+const textbookId=ref(null)
 // 总条数
 const numPagesTotal = ref(0)
 const pdfCanvaslist = ref(null)
@@ -60,7 +67,7 @@ const navtopage = (type) => {
     pdfObj.numPages += num
   }
   if (pdfObj.numPages > numPagesTotal.value) return
-  pdfCanvaslist.value.initPdf()
+  pdfCanvaslist.value.initPdf('rest')
 }
 // 最小化窗口
 const minimize = () => {
@@ -70,7 +77,7 @@ const handleUpdate = (data) => {
   numPagesTotal.value = data
   if (numPagesTotal.value == 1) {
     pdfObj.numberOfPdf = 1
-    pdfCanvaslist.value.initPdf('restone')
+    pdfCanvaslist.value.initPdf('rest')
   }
 }
 // 单双页切换
@@ -87,10 +94,33 @@ const switchPageMode = () => {
   } else {
     // 多页切单页
     pdfObj.numberOfPdf = 1
-    pdfCanvaslist.value.initPdf('restone')
+    pdfCanvaslist.value.initPdf('rest')
   }
 }
-onMounted(async () => {})
+onMounted(async () => {
+  const route = useRoute();
+  textbookId.value = route.query.textbookId
+  pdfObj.bookId=textbookId.value
+  getBookMarkById(textbookId.value).then(res=>{
+    pdfObj.allPageData=getUniqueArrayByLastOccurrence(res.data)
+    console.log(pdfObj.allPageData)
+  })
+})
+
+//根据page去重
+const getUniqueArrayByLastOccurrence=(array)=> {
+  const uniqueItems = array.reduce((acc, current) => {
+    // 使用 Map 来跟踪最后一个出现的 pageNum 和它的对象
+    acc.set(current.pageNum, current);
+    return acc;
+  }, new Map());
+
+  // 将 Map 的值转换回数组
+  const resultArray = Array.from(uniqueItems.values());
+
+  return resultArray;
+}
+
 </script>
 
 <style lang="scss" scoped>

src/renderer/src/views/prepare/index.vue

@@ -437,7 +437,8 @@ export default {
     },
     // 打开PDF-课件
     navtoPdf() {
-      createWindow('open-PDF', { url: '/classBegins/index' })
+      console.log(this.uploadData.textbookId) 
+      createWindow('open-PDF', { url: '/classBegins/index?textbookId='+this.uploadData.textbookId })
     },
     // 上课-工具类悬浮
     openLesson() {