优化

unknown

2024-05-31 6464d968c5049caa0a8c243e37058d237ad78b3e

 src/books/embedded/view/components/index.vue

@@ -29,16 +29,6 @@
import Viewer from "viewerjs";
import "viewerjs/dist/viewer.css";
export default {
  name: "pageContent",
  components: { pageHeader, chapterOne },
  computed: {
    fontSize() {
      return this.$store.state.qiankun.fontSize;
    },
    pageZoom() {
      return this.$store.state.qiankun.scale / 100;
    },
  },
  data() {
    return {
      catalogLength: 2, // 总章节数
@@ -51,8 +41,16 @@
      loadPageObserver: null,
      loadPageList: [],
      questionData: {},
      testData: {},
      renderSignMap: {}
    };
  },
  computed: {
    fontSize() {
      return this.$store.state.qiankun.fontSize;
    },
    pageZoom() {
      return this.$store.state.qiankun.scale / 100;
    }
  },
  watch: {
    showCatalogList: {
@@ -63,7 +61,7 @@
        ) {
          // 调用父层方法
          this.$store.state.qiankun.catalogChange({
            showCatalogList: newVal,
            showCatalogList: newVal
          });
        }
        // 启动页码观察
@@ -71,16 +69,17 @@
          this.initObservation();
          this.initThemeColor();
        }, 500);
      },
      }
    },
    loadPageList: {
      handler(newVal, oldVal) {
        console.log(newVal, "this.loadPageList");
        setTimeout(() => {
          this.initSwiper();
          this.initViewer();
        }, 200);
      },
    },
      }
    }
  },
  mounted() {
    // 默认加载章节
@@ -100,12 +99,14 @@
        },
        // 渲染笔记、高亮、划线
        renderSign: (type, data) => {
          this.renderSign(type, data);
          // 因为调整为页面懒加载，所以渲染标记也需要按照页面进行处理，先储存数据，页面加载完成再渲染对应的标记；
          this.handelSignData(type, data);
          // this.renderSign(type, data);
        },
        // 删除笔记、高亮、划线
        delSign: (data) => {
          this.delSign(data);
        },
        }
      });
    }

@@ -114,13 +115,13 @@
    this.observer = new IntersectionObserver(this.pageChangeCallback, {
      root: null, // 指定根元素，这里设为 null，表示选取整个视窗作为根元素。
      rootMargin: "0px", // 指定根元素的边界，这里设为 "0px"，表示根元素的边界和视窗的边界重合
      threshold: 0.5, // 指定交叉比例，这里设为 0.5，表示当目标元素一半或更多显示在视窗中时触发回调函数。
      threshold: 0.5 // 指定交叉比例，这里设为 0.5，表示当目标元素一半或更多显示在视窗中时触发回调函数。
    });

    this.loadPageObserver = new IntersectionObserver(this.loadPageCallback, {
      root: null, // 指定根元素，这里设为 null，表示选取整个视窗作为根元素。
      rootMargin: "0px", // 指定根元素的边界，这里设为 "0px"，表示根元素的边界和视窗的边界重合
      threshold: 0, // 指定交叉比例，这里设为 0.5，表示当目标元素一半或更多显示在视窗中时触发回调函数。
      threshold: 0 // 指定交叉比例，这里设为 0.5，表示当目标元素一半或更多显示在视窗中时触发回调函数。
    });

    // 启动页码观察
@@ -131,21 +132,21 @@

    // 测试页面跳转
    // setTimeout(() => {
    //   this.gotoPage(1, 11);
    //   //   setTimeout(() => {
    //   //     this.renderSign("Note", {
    //   //       id: "2ACA9359",
    //   //       txt: "营养素和热量，才能",
    //   //       page: "100",
    //   //       type: "Highlight",
    //   //       color: "#F5E12A"
    //   //     });
    //   //     setTimeout(() => {
    //   //       this.delSign({
    //   //         ids: ["2ACA9359"]
    //   //       });
    //   //     }, 2000);
    //   //   }, 1000);
    //   this.gotoPage(1, 10);
    //   setTimeout(() => {
    //     this.renderSign("Highlight", {
    //       id: "2ACA9359",
    //       txt: "题一学习主题一 运动",
    //       page: "10",
    //       type: "Highlight",
    //       color: "#F5E12A"
    //     });
    // setTimeout(() => {
    //   this.delSign({
    //     ids: ["2ACA9359"]
    //   });
    // }, 2000);
    //   }, 5000);
    // }, 1000);
  },
  methods: {
@@ -204,7 +205,7 @@
          this.showCatalogList = [
            this.catalogLength - 2,
            this.catalogLength - 1,
            this.catalogLength,
            this.catalogLength
          ];
        } else {
          this.showCatalogList = [catalog - 1, catalog, catalog + 1];
@@ -225,6 +226,19 @@
      }
    },

    // 处理标记数据
    handelSignData(type, data) {
      if (this.loadPageList.indexOf(Number(data.page)) > -1) {
        // 立即渲染
        this.renderSign(type, data);
      }
      // 储存数据
      if (!this.renderSignMap[type]) this.renderSignMap[type] = {};
      if (!this.renderSignMap[type][data.page])
        this.renderSignMap[type][data.page] = [];
      this.renderSignMap[type][data.page].push(data);
    },

    // 渲染标记
    renderSign(type, data) {
      const existence = (
@@ -235,29 +249,48 @@
        const pageDom = (
          this.container ? this.container : document
        ).querySelector(`[page="${data.page}"]`);
        let reg = new RegExp(`${data.txt}`, "ig");
        switch (type) {
          case "Highlight":
            // 高亮
            pageDom.innerHTML = pageDom.innerHTML.replace(
              reg,
              `<span datatype="Highlight" dataid="${data.id}" style="background: ${data.color};" class="highLight" onclick="signClick('Highlight','${data.id}','${data.chapterNum}')">${data.txt}</span>`
            );
            break;
          case "Dashing":
            // 划线
            pageDom.innerHTML = pageDom.innerHTML.replace(
              reg,
              `<span datatype="Dashing" dataid="${data.id}" style="text-decoration-color:${data.color};" class="underline" onclick="signClick('Dashing','${data.id}','${data.chapterNum}')">${data.txt}</span>`
            );
            break;
          case "Note":
            // 笔记
            pageDom.innerHTML = pageDom.innerHTML.replace(
              reg,
              `<span datatype="Note" dataid="${data.id}" style="border-bottom-color:${data.color}" class="notesline" onclick="signClick('Note','${data.id}','${data.chapterNum}')" onmouseover="noteHover('Note','${data.id}','${data.chapterNum}')" onmouseout="noteOut('Note')">${data.txt}<img src="${NoteIcon}"/></span>`
            );
            break;
        // 创建 createTreeWalker 迭代器，用于遍历文本节点，保存到一个数组
        const treeWalker = document.createTreeWalker(
          pageDom,
          NodeFilter.SHOW_TEXT
        );
        const allTextNodes = [];
        let currentNode = treeWalker.nextNode();
        while (currentNode) {
          allTextNodes.push(currentNode);
          currentNode = treeWalker.nextNode();
        }
        for (let i = 0; i < allTextNodes.length; i++) {
          const textDom = allTextNodes[i];
          if (textDom.textContent.indexOf(data.txt) > -1) {
            let reg = new RegExp(`${data.txt}`, "ig");
            switch (type) {
              case "Highlight":
                // 高亮
                textDom.parentNode.innerHTML =
                  textDom.parentNode.innerHTML.replace(
                    reg,
                    `<span datatype="Highlight" dataid="${data.id}" style="background: ${data.color};" class="highLight" onclick="signClick('Highlight','${data.id}','${data.chapterNum}')">${data.txt}</span>`
                  );
                break;
              case "Dashing":
                // 划线
                textDom.parentNode.innerHTML =
                  textDom.parentNode.innerHTML.replace(
                    reg,
                    `<span datatype="Dashing" dataid="${data.id}" style="text-decoration-color:${data.color};" class="underline" onclick="signClick('Dashing','${data.id}','${data.chapterNum}')">${data.txt}</span>`
                  );
                break;
              case "Note":
                // 笔记
                textDom.parentNode.innerHTML =
                  textDom.parentNode.innerHTML.replace(
                    reg,
                    `<span datatype="Note" dataid="${data.id}" style="border-bottom-color:${data.color}" class="notesline" onclick="signClick('Note','${data.id}','${data.chapterNum}')" onmouseover="noteHover('Note','${data.id}','${data.chapterNum}')" onmouseout="noteOut('Note')">${data.txt}<img src="${NoteIcon}"/></span>`
                  );
                break;
            }
          }
        }
      }
    },
@@ -303,7 +336,7 @@
            return false;
          }
        }
        //observer 观察每个元素，以便在它们进入或离开视窗时触发回调函数。
        // observer 观察每个元素，以便在它们进入或离开视窗时触发回调函数。
        const isObserver = section.getAttribute("observer");
        const isLoadObserver = section.getAttribute("loadObserver");
        if (!isObserver) {
@@ -416,10 +449,8 @@
            "chapter"
          );
          const catalog = catalogDom.getAttribute("num");
          console.log(page, "page", catalog, "catalog");
          let text = null;
          if (target.querySelector("p")) {
            console.log(target.querySelector("p").textContent.substring(0, 20));
            text = target.querySelector("p").textContent.substring(0, 20);
          }
          // 返回页码和章节信息
@@ -427,7 +458,7 @@
            this.$store.state.qiankun.pageChange({
              page: page,
              catalog: catalog,
              text,
              text
            });
          // const sections = Array.from(document.querySelectorAll(".section"));
          //sections：获取所有具有 .section 类名的元素，并转换为数组。
@@ -441,8 +472,7 @@
        if (entry.isIntersecting) {
          const target = entry.target;
          const page = target.getAttribute("page");
          if (this.loadPageList.indexOf(page) == -1) {
            //
          if (this.loadPageList.indexOf(Number(page)) == -1) {
            const catalogDom = this.tool.getParentNodeByClassName(
              target,
              "chapter"
@@ -457,6 +487,7 @@
            //           testData[catalog][page],
            //           this.config.activeBook
            //         );
                    
            //       } else {
            //         const obj = {};
            //         for (let key in testData[catalog][page]) {
@@ -468,11 +499,20 @@
            //         }
            //         this.questionData[page] = obj;
            //       }
            //       console.log('题目',this.questionData);
            //     }
            //   }
            // }
            // 添加页码
            this.loadPageList.push(Number(page));
            console.log('页码列表',this.loadPageList);
            // 渲染这一页的标记
            for (const key in this.renderSignMap) {
              if (this.renderSignMap[key][page]) {
                this.renderSignMap[key][page].forEach((item) => {
                  this.renderSign(key, item);
                });
              }
            }
            if (this.loadPageList.length > 5) {
              // 超过5页
              this.loadPageList.shift();
@@ -484,7 +524,7 @@
    initSwiper() {
      const doms = (
        this.container ? this.container : document
      ).querySelectorAll(".swiper-container");
      ).querySelectorAll(".swiper-img");
      for (let i = 0; i < doms.length; i++) {
        const dom = doms[i];
        new Swiper(dom, {
@@ -499,18 +539,65 @@
          spaceBetween: 30, // 间隔
          // 如果需要前进后退按钮
          navigation: {
            nextEl: ".swiper-button-next",
            prevEl: ".swiper-button-prev",
            nextEl: (this.container ? this.container : document).querySelector(
              ".swiper-button-next"
            ),
            prevEl: (this.container ? this.container : document).querySelector(
              ".swiper-button-prev"
            ),
          },
          // 窗口变化,重新init,针对F11全屏和放大缩小,必须加
          observer: true,
          observeParents: true,
          // // 如果需要分页器
          // pagination: {
          //   el: ".swiper-pagination",
          //   el: (this.container ? this.container : document).querySelector(
          //     ".swiper-pagination"
          //   ),
          //   clickable: true // 分页器可以点击
          // }
        });
      }
      const pptDoms = (
        this.container ? this.container : document
      ).querySelectorAll(".swiper_ppt");
      for (let i = 0; i < pptDoms.length; i++) {
        const dom = pptDoms[i];
        new Swiper(dom, {
        loop: false, // 无缝
        autoplay: false,
        paginationClickable: true,
        slidesPerView: 1, // 一组三个
        spaceBetween: 30, // 间隔
        // 如果需要前进后退按钮
        navigation: {
          nextEl: (this.container ? this.container : document).querySelector(
            ".swiper-button-next"
          ),
          prevEl: (this.container ? this.container : document).querySelector(
            ".swiper-button-prev"
          ),
        },
        // 窗口变化,重新init,针对F11全屏和放大缩小,必须加
        observer: true,
        observeParents: true,
        on: {
          init:(value) => {
            let currentPage = value.activeIndex + 1; // 获取当前页（从1开始计数）
            let totalPages = value.slides.length; // 获取总页数
            var paginationInfoEl = dom.querySelector('.pageBox');
            if(paginationInfoEl)
              paginationInfoEl.textContent = currentPage + '/' + totalPages;
          },
          slideChange:(value) => {
            let currentPage = value.activeIndex + 1; // 获取当前页（从1开始计数）
            let totalPages = value.slides.length; // 获取总页数
            var paginationInfoEl = dom.querySelector('.pageBox');
            if(paginationInfoEl)
              paginationInfoEl.textContent = currentPage + '/' + totalPages;
          },
        },
      });
      }
    },
    initViewer() {
@@ -520,13 +607,18 @@
      for (let i = 0; i < doms.length; i++) {
        const dom = doms[i];
        new Viewer(dom, {
          container: (this.container ? this.container.querySelector("#app") : "body"),
          navbar: true, // 显示导航栏
          toolbar: true, // 显示工具栏
          title: true, // 显示标题
          title: true // 显示标题
        });
      }
    },
    }
  },
  components: {
    pageHeader,
    chapterOne,
  }
};
</script>
<style scoped lang="less">