From bb584963c6abe77c5577cbcad3c9956b69444ae9 Mon Sep 17 00:00:00 2001
From: zhongshujie <2862698242@qq.com>
Date: 星期二, 01 七月 2025 17:17:30 +0800
Subject: [PATCH] 无人机样章

---
 src/components/pdfview/index.vue |  345 ++++++++++++++++++++++++++++++---------------------------
 1 files changed, 181 insertions(+), 164 deletions(-)

diff --git a/src/components/pdfview/index.vue b/src/components/pdfview/index.vue
index 04edf5e..845bf08 100644
--- a/src/components/pdfview/index.vue
+++ b/src/components/pdfview/index.vue
@@ -1,16 +1,30 @@
+<!-- @format -->
 <template>
-  <div class="imgbox">
-    <img
-      ref="image"
-      :onLoad="initFun"
-      :onDragStart="dragStart"
-      :onWheel="handleScroll"
-      :src="currentPageSrc"
-      alt=""
-    />
-  </div>
+  <el-dialog :visible.sync="localDialogVisible" @open="hadleOpenDialog" width="60vw" top="2vh" append-to-body
+    lock-scroll :show-close="false" class="custom-dialog">
+    <div slot="title" class="header_title">
+      <span>{{ pdfTitle }}</span>
+      <span @click="closeDialog"> x </span>
+    </div>
+    <div class="pdfModal" v-if="localDialogVisible">
+      <!-- 鍘熸湁鐨勫唴瀹� -->
+      <div class="pdfBox-component">
+        <div class="preview" v-if="this.preViewMd5">
+          <div id="imageParent" class="imageBox"></div>
+          <div class="bottom_tool"></div>
+        </div>
+        <div class="notBox" v-if="totalPage == 0 && !loading">
+          <el-empty description="鏆傛棤鏁版嵁"></el-empty>
+        </div>
+        <div class="notBox" v-if="loading" v-loading="loading"></div>
+      </div>
+    </div>
+  </el-dialog>
 </template>
 <script>
+import Viewer from "viewerjs";
+import "viewerjs/dist/viewer.css";
+import { getResourcePath } from "@/assets/methods/resources";
 export default {
   name: "pdf_view",
   props: {
@@ -20,186 +34,189 @@
     title: {
       type: String,
     },
+    isClear: {
+      type: Boolean,
+      default: false,
+    },
+    pdfTitle: {
+      type: String,
+    },
   },
   data() {
     return {
+      localDialogVisible: false,
       currentPageSrc: "",
-      fileLoading: false,
-      visible: true,
-      close: null,
-      currentPage: 1,
+      currentPage: 3,
       totalPage: 1,
-      rcViewerOptions: {
-        // inline: true
-      },
-      zoom: 1,
-      catalogVisible: false,
-      tocData: [],
-      generateList: [],
-      expandedKeys: [],
-      searchValue: "",
-      autoExpandParent: true,
-      drawerSize: "default",
+      viewerCon: null,
+      preViewMd5: "",
+      loading: false,
     };
   },
   watch: {
-    md5: {
-      handler(newVal, oldVal) {
-        if (newVal) {
-          this.getFileInfo();
-        }
-      },
-    },
-  },
-  created(){
-    this.getFileInfo();
+    // md5: {
+    //   immediate: true,
+    //   handler(val) {
+    //     if (val) {
+    //       // this.preViewMd5 = val
+    //       this.currentPage = 1
+    //       this.currentPageSrc = ''
+    //       this.totalPage = 1
+    //       this.viewerCon?.destroy()
+    //     }
+    //   },
+    // },
+    // dialogVisibleProp(newVal) {
+    //   this.localDialogVisible = newVal;
+    //   if (newVal) {
+    //     this.currentPage = 1;
+    //     this.loading = true;
+    //     this.clearDom();
+    //     this.getFileInfo();
+    //     this.$nextTick(() => {
+    //       this.scrollBottom()
+    //     });
+    //   } else {
+    //     this.viewerCon?.destroy();
+    //   }
+    // },
   },
   methods: {
-    initFun() {
-      // 鍒濆鍖栨嫋鎷�
-      let image = this.refs.image;
-      let imageBox = this.refs.imageBox;
-      let initLeft = imageBox.offsetWidth / 2 - image.offsetWidth / 2;
-      image.style.left = initLeft + "px";
-      image.style.top = 0 + "px";
-      let canMove = false;
-      let offsetX, offsetY, oldLeft, oldTop;
-      image.onmousedown = function (e) {
-        canMove = true;
-        offsetX = e.x;
-        offsetY = e.y;
-        oldLeft = parseFloat(image.style.left.split("px")[0]);
-        oldTop = parseFloat(image.style.top.split("px")[0]);
-      };
-      imageBox.onmousemove = function (e) {
-        if (canMove == true) {
-          let left = e.clientX - offsetX;
-          let top = e.clientY - offsetY;
-          image.style.left = oldLeft + left + "px";
-          image.style.top = oldTop + top + "px";
-        }
-      };
-      image.onmouseup = function () {
-        canMove = false;
-      };
-      this.fileLoading = false;
+    hadleOpenDialog() {
+      this.preViewMd5 = this.md5;
+      this.currentPage = 3;
+      this.currentPageSrc = "";
+      this.totalPage = 1;
+      this.viewerCon?.destroy();
+      this.loading = true;
+      this.clearDom();
+      this.getFileInfo();
+      this.$nextTick(() => {
+        this.scrollBottom();
+      });
     },
-    dragStart(e) {
-      if (e && e.preventDefault) {
-        e.preventDefault();
-      } else {
-        window.event.returnValue = false;
+    closeDialog() {
+      this.localDialogVisible = false;
+    },
+    openDialog() {
+      this.localDialogVisible = true;
+    },
+    async downloadPdf() {
+      console.log(await getResourcePath(this.preViewMd5), "12345");
+
+      window.open(await getResourcePath(this.preViewMd5));
+    },
+    domViewer() {
+      // let ele = (this.container ? this.container : document).getElementById(
+      //   'imageParent'
+      // )
+      let ele = document.getElementById("imageParent");
+      if (ele) {
+        this.viewerCon = new Viewer(ele, {
+          inline: false,
+          container: this.container
+            ? this.container.querySelector("#app")
+            : "body",
+          navbar: true, // 鏄剧ず瀵艰埅鏍�
+          toolbar: true, // 鏄剧ず宸ュ叿鏍�
+          title: true, // 鏄剧ず鏍囬
+        });
       }
     },
-    handleScroll(e) {
-      if (e.nativeEvent.deltaY <= 0) {
-        if (this.zoom < 3) {
-          let newZoom = this.zoom + 0.1;
-          this.zoom = newZoom;
-          this.refs.image.style.height = newZoom * 100 + "%";
-        }
-      } else {
-        if (this.zoom > 0.5) {
-          let newZoom = this.zoom - 0.1;
-          this.zoom = newZoom;
-          this.refs.image.style.height = newZoom * 100 + "%";
-        }
+    clearDom() {
+      let ele = document.getElementById("imageParent");
+      if (ele) {
+        ele.innerHTML = "";
       }
     },
+    createDom(page) {
+      var that = this;
+      let ele = document.getElementById("imageParent");
+      const img = document.createElement("img");
+      img.src = this.getPageImage(page);
+      // 鎵嬪姩瑙﹀彂婊氬姩浜嬩欢
+      // ele.dispatchEvent(new Event("scroll"));
+      img.alt = "";
+      img.style.maxWidth = "90%";
+      img.style.padding = "30px 5%";
+      img.className = "imgHover";
+      img.onclick = () => {
+        that.viewerCon?.destroy();
+        that.domViewer();
+      };
+      if (ele) {
+        ele.appendChild(img);
+      }
+    },
+
+    scrollBottom() {
+      const ele = document.getElementById("imageParent");
+      if (ele) {
+        let lastScrollTop = 0;
+        ele.addEventListener("scroll", () => {
+          const scrollTop = ele.scrollTop;
+          const scrollBottom = ele.scrollHeight - scrollTop - ele.clientHeight;
+          if (scrollBottom < 10 && scrollTop > lastScrollTop) {
+            console.log(
+              "婊氬姩鍒板簳閮紝褰撳墠椤碉細",
+              this.currentPage,
+              "鎬婚〉鏁帮細",
+              this.totalPage
+            );
+            if (this.currentPage < this.totalPage) {
+              this.currentPage++;
+              if (this.currentPage <= this.totalPage) {
+                this.createDom(this.currentPage);
+              }
+            }
+          }
+          lastScrollTop = scrollTop;
+        });
+      }
+    },
+
+
     getFileInfo() {
       // 鑾峰彇鐩綍
-      // this.MG.file
-      //   .GetPdfToc({ md5: this.md5 })
-      //   .then((tocRes) => {
-      //     console.log(tocRes, "3232---3232----32");
-      //     if (tocRes && tocRes.length && tocRes[0]) {
-      //       let tocDataList = [];
-      //       for (let i = 0; i < tocRes.length; i++) {
-      //         const tacItem = tocRes[i];
-      //         if (tacItem) {
-      //           let itemInfo = tacItem.split(" ");
-      //           let obj = {
-      //             page: itemInfo[0],
-      //             level: itemInfo[1],
-      //             title: itemInfo[2] + " ( " + itemInfo[0] + " )",
-      //             children: [],
-      //           };
-      //           tocDataList.push(obj);
-      //         }
-      //       }
-      //       let cLevel = 0;
-      //       let tocData = [];
-      //       let generateList = []; // 鐢ㄤ簬妫�绱㈢殑Data
-      //       let memorySrc = null;
-      //       for (let j = 0; j < tocDataList.length; j++) {
-      //         const tocItem = tocDataList[j];
-      //         if (tocItem.level == 0) {
-      //           tocItem.key = tocData.length;
-      //           tocData.push(tocItem);
-      //           generateList.push(tocItem);
-      //           cLevel = 0;
-      //         } else if (tocItem.level == cLevel) {
-      //           tocItem.key = memorySrc.key + "-" + memorySrc.children.length;
-      //           memorySrc.children.push(tocItem);
-      //           generateList.push(tocItem);
-      //         } else if (tocItem.level > cLevel) {
-      //           memorySrc = this.handleDocData(tocData, cLevel);
-      //           tocItem.key = memorySrc.key + "-" + memorySrc.children.length;
-      //           memorySrc.children.push(tocItem);
-      //           generateList.push(tocItem);
-      //           cLevel = tocItem.level;
-      //         } else if (tocItem.level < cLevel) {
-      //           memorySrc = this.handleDocData(tocData, tocItem.level - 1);
-      //           tocItem.key = memorySrc.key + "-" + memorySrc.children.length;
-      //           memorySrc.children.push(tocItem);
-      //           generateList.push(tocItem);
-      //           cLevel = tocItem.level;
-      //         }
-      //       }
-      //       this.tocData = tocData;
-      //       this.generateList = generateList;
-      //       console.log(tocData, generateList, 1221212121211);
-      //     }
-
-          // 鑾峰彇鎬婚〉鏁�
-          this.MG.file
-            .getPdfInfo({ md5: this.md5 })
-            .then((res) => {
-              console.log(res, 79879879879797979);
+      this.loading = true;
+      this.MG.file
+        .getPdfInfo({ md5: this.preViewMd5 })
+        .then((res) => {
+          try {
+            if (typeof res === "string" && res !== null) {
+              this.totalPage = JSON.parse(res).totalPages;
+            } else if (typeof res === "object" && res !== null) {
               this.totalPage = res.totalPages;
-              this.getPageImage(this.currentPage - 1);
-            })
-            .catch((err) => {
-              console.error(err);
-            });
-        // })
-        // .catch((err) => {
-        //   console.error(err);
-        // });
+            }
+          } catch (error) {
+            console.log(error, "pdf杩斿洖鍊肩被鍨嬮敊璇�");
+          }
+          const maxPages = Math.min(3, this.totalPage);
+          for (let i = 0; i < maxPages; i++) {
+            this.createDom(i + 1);
+          }
+          this.loading = false;
+        })
+        .catch((err) => {
+          this.totalPage = 0;
+          this.createDom(this.currentPage);
+          console.error(err);
+          this.loading = false;
+        });
     },
+
     getPageImage(page) {
-      console.log(page, "page");
       const ctx = process.env.VUE_APP_API_URL;
-      this.fileLoading = true;
-      this.currentPageSrc =
+      return (
         ctx +
-        "/file/Preview/GetPageImage" +
+        "/file/GetPdfPageImage" +
         "?md5=" +
-        this.md5 +
+        this.preViewMd5 +
         "&index=" +
         page +
-        "&dpi=150";
+        "&dpi=200"
+      );
     },
   },
 };
 </script>
-<style scoped lang="less">
-.imgbox {
-  width: 100%;
-  height: 100%;
-  background-color: aquamarine;
-  img {
-    width: 100%;
-  }
-}
-</style>

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