嵌入式优化

闫增涛

2024-06-06 57ebfaedfe6364ab0c3beb1afe01c00fe2798a2c

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

@@ -18,12 +18,18 @@
        :showPageList="loadPageList"
      ></chapterOne>
    </div>
    <miniAudio
      :path="audioPath"
      :currentTime="currentTime"
      ref="audioPlayer"
    ></miniAudio>
  </div>
</template>

<script>
import pageHeader from "./header.vue";
import chapterOne from "./chapter001.vue";
import miniAudio from "@/components/miniAudio/index.vue";
import NoteIcon from "@/assets/images/biji.png";
import _ from "lodash";
import Swiper from "swiper/bundle";
@@ -31,9 +37,10 @@
import Viewer from "viewerjs";
import "viewerjs/dist/viewer.css";
export default {
  name: "page-main",
  data() {
    return {
      catalogLength: 13, // 总章节数
      catalogLength: 2, // 总章节数
      showCatalogList: [], // 显示的章节
      loadThreshold: 300, // 触发加载阈值
      throttleThreshold: 100, // 节流阈值
@@ -44,6 +51,9 @@
      loadPageList: [],
      questionData: {},
      renderSignMap: {},
      audioPath: "",
      currentTime: null,
      videoList: [],
    };
  },
  computed: {
@@ -155,6 +165,7 @@
    scrollFun(event) {
      // 判断向上滚动还是向下滚动
      if (event.target.scrollTop > this.previousScrollTop) {
        this.getAduio();
        // 向下
        const currentScrollTop =
          event.target.scrollTop + event.target.offsetHeight;
@@ -178,6 +189,7 @@
          }
        }
      } else if (event.target.scrollTop < this.previousScrollTop) {
        this.handleAudio();
        // 向上
        const currentScrollTop = event.target.scrollTop;
        if (currentScrollTop <= this.loadThreshold) {
@@ -559,6 +571,47 @@
          // }
        });
      }
      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() {
      const doms = (
@@ -581,7 +634,7 @@
      console.log("生僻字", event, word);
      if (this.$store.state.qiankun && this.$store.state.qiankun.chooseWords) {
        this.$store.state.qiankun.chooseWords({
          type:"word",
          type: "word",
          word,
          x: event.pageX,
          y: event.pageY,
@@ -589,10 +642,56 @@
      }
      // chooseWords
    },
    // 页面向下滚动，音频小窗播放功能
    getAduio() {
      let allVideo = (
        this.container ? this.container : document
      ).querySelectorAll(".audio");
      allVideo = Array.from(allVideo);
      this.videoList = allVideo;
      if (allVideo.length) {
        // 查找播放状态的最后一条音频
        const playAudio = allVideo
          .reverse()
          .find((item) => item.paused == false);
        if (playAudio) {
          const bottomGap = playAudio.getBoundingClientRect().bottom;
          if (bottomGap < 0) {
            playAudio.pause();
            this.audioPath = playAudio.src;
            this.currentTime = playAudio.currentTime;
          }
        }
      }
    },
    // 页面向上滚动，音频小窗回收
    handleAudio() {
      if (!this.audioPath) return false;
      let allVideo = (
        this.container ? this.container : document
      ).querySelectorAll(".audio");
      allVideo = Array.from(allVideo);
      if (allVideo.length) {
        //查找与小窗播放音频同源的页面audio DOM
        const playAudio = allVideo.find((item) => item.src == this.audioPath);
        if (playAudio) {
          const bottomGap = playAudio.getBoundingClientRect().bottom;
          if (bottomGap >= 0) {
            if (this.$refs.audioPlayer) {
              const playerState = this.$refs.audioPlayer.getVideoPlayer();
              this.audioPath = "";
              playAudio.currentTime = playerState.currentTime;
              if (!playerState.paused) playAudio.play();
            }
          }
        }
      }
    },
  },
  components: {
    pageHeader,
    chapterOne,
    miniAudio,
  },
};
</script>