| | |
| | | <template> |
| | | <div ref="imageBox" class="imageBox"> |
| | | <img |
| | | id="image" |
| | | ref="image" |
| | | @onload="initFun" |
| | | @ondragstart="dragStart" |
| | | @onwheel="handleScroll" |
| | | :src="currentPageSrc" |
| | | alt="" |
| | | /> |
| | | <div class="preview" v-if="this.preViewMd5"> |
| | | <div id="imageParent" class="imageBox"></div> |
| | | <div class="bottom_tool"> |
| | | <svg |
| | | @click="downloadPdf" |
| | | t="1718251204993" |
| | | class="icon" |
| | | viewBox="0 0 1024 1024" |
| | | version="1.1" |
| | | xmlns="http://www.w3.org/2000/svg" |
| | | p-id="4418" |
| | | xmlns:xlink="http://www.w3.org/1999/xlink" |
| | | width="25" |
| | | height="25" |
| | | > |
| | | <path |
| | | d="M557 564.974l153.188-181.04c16.054-18.972 44.448-21.34 63.42-5.286 18.972 16.054 21.338 44.448 5.284 63.42L550.56 711.92a44.982 44.982 0 0 1-8.95 10.254 44.872 44.872 0 0 1-15.082 8.432A44.944 44.944 0 0 1 512 733c-16.264 0-30.512-8.628-38.42-21.556L245.65 442.068c-16.052-18.972-13.686-47.366 5.286-63.42 18.972-16.052 47.366-13.686 63.42 5.286l152.646 180.4V157c0-24.852 20.148-45 45-45s45 20.148 45 45v407.974zM823 630c0-24.852 20.148-45 45-45s45 20.148 45 45v238c0 24.87-20.176 45.026-45.046 45l-710-0.726c-24.834-0.026-44.954-20.166-44.954-45V630c0-24.852 20.148-45 45-45s45 20.148 45 45v192.32l620 0.634V630z" |
| | | p-id="4419" |
| | | ></path> |
| | | </svg> |
| | | </div> |
| | | </div> |
| | | </template> |
| | | <script> |
| | | import Viewer from "viewerjs"; |
| | | import "viewerjs/dist/viewer.css"; |
| | | import { getResourcePath } from "@/assets/methods/resources"; |
| | | export default { |
| | | name: "pdf_view", |
| | | props: { |
| | |
| | | title: { |
| | | type: String, |
| | | }, |
| | | isClear: { |
| | | type: Boolean, |
| | | default: false, |
| | | }, |
| | | }, |
| | | data() { |
| | | return { |
| | | currentPageSrc: "", |
| | | fileLoading: false, |
| | | visible: true, |
| | | close: null, |
| | | currentPage: 1, |
| | | totalPage: 1, |
| | | rcViewerOptions: { |
| | | // inline: true |
| | | }, |
| | | zoom: 1, |
| | | catalogVisible: false, |
| | | tocData: [], |
| | | generateList: [], |
| | | expandedKeys: [], |
| | | searchValue: "", |
| | | autoExpandParent: true, |
| | | drawerSize: "default", |
| | | viewerCon: null, |
| | | preViewMd5: "", |
| | | }; |
| | | }, |
| | | watch: { |
| | | isClear: { |
| | | immediate: true, |
| | | handler(val) { |
| | | if (val == true) this.preViewMd5 = ""; |
| | | }, |
| | | }, |
| | | md5: { |
| | | handler(newVal, oldVal) { |
| | | if (newVal) { |
| | | this.getFileInfo(); |
| | | immediate: true, |
| | | handler(val) { |
| | | if (val) { |
| | | this.preViewMd5 = val; |
| | | this.currentPage = 1; |
| | | this.currentPageSrc = ""; |
| | | this.totalPage = 1; |
| | | this.viewerCon?.destroy(); |
| | | } |
| | | }, |
| | | }, |
| | | }, |
| | | created() { |
| | | this.getFileInfo(); |
| | | }, |
| | | mounted(){ |
| | | // this.initFun() |
| | | this.scrollBottom(); |
| | | this.clearDom(); |
| | | this.getFileInfo(); |
| | | }, |
| | | methods: { |
| | | initFun() { |
| | | // 初始化拖拽 |
| | | let image = this.$refs.image; |
| | | console.log(this,8989); |
| | | if (image) { |
| | | let imageBox = this.$refs.imageBox; |
| | | let initLeft = imageBox.offsetWidth / 2 - image.offsetWidth / 2; |
| | | image.style.left = 0 + "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; |
| | | } |
| | | async downloadPdf() { |
| | | window.open(await getResourcePath(this.preViewMd5)); |
| | | }, |
| | | dragStart(e) { |
| | | console.log(e,'dragStart') |
| | | if (e && e.preventDefault) { |
| | | e.preventDefault(); |
| | | } else { |
| | | window.event.returnValue = false; |
| | | } |
| | | domViewer() { |
| | | let ele = (this.container ? this.container : document).getElementById( |
| | | "imageParent" |
| | | ); |
| | | this.viewerCon = new Viewer(ele, { |
| | | inline: false, |
| | | 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 |
| | | }); |
| | | }, |
| | | handleScroll(e) { |
| | | console.log(e,'handleScroll') |
| | | 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 = (this.container ? this.container : document).getElementById( |
| | | "imageParent" |
| | | ); |
| | | ele.innerHtml = ""; |
| | | }, |
| | | createDom(page) { |
| | | var that = this; |
| | | let ele = (this.container ? this.container : document).getElementById( |
| | | "imageParent" |
| | | ); |
| | | const img = document.createElement("img"); |
| | | img.src = this.getPageImage(page); |
| | | img.alt = ""; |
| | | img.style.maxWidth = "90%"; |
| | | img.style.padding = "30px 5%"; |
| | | img.className = "imgHover"; |
| | | img.onclick = () => { |
| | | that.viewerCon?.destroy(); |
| | | that.domViewer(); |
| | | }; |
| | | ele.appendChild(img); |
| | | }, |
| | | scrollBottom() { |
| | | var that = this; |
| | | var ele = (this.container ? this.container : document).getElementById( |
| | | "imageParent" |
| | | ); |
| | | ele.addEventListener("scroll", function () { |
| | | // 计算滚动条距离底部的位置 |
| | | const scrollBottom = |
| | | ele.scrollHeight - ele.scrollTop - ele.clientHeight; |
| | | if (scrollBottom <= 10) { |
| | | that.currentPage++; |
| | | if (that.currentPage <= that.totalPage) { |
| | | that.createDom(that.currentPage, ele); |
| | | } |
| | | } |
| | | }); |
| | | }, |
| | | getFileInfo() { |
| | | // 获取目录 |
| | | this.MG.file |
| | | .getPdfInfo({ md5: this.md5 }) |
| | | .getPdfInfo({ md5: this.preViewMd5 }) |
| | | .then((res) => { |
| | | this.totalPage = res.totalPages; |
| | | this.getPageImage(this.currentPage); |
| | | this.createDom(this.currentPage); |
| | | }) |
| | | .catch((err) => { |
| | | this.totalPage = 1; |
| | | this.createDom(this.currentPage); |
| | | console.error(err); |
| | | }); |
| | | }, |
| | | getPageImage(page) { |
| | | const ctx = process.env.VUE_APP_API_URL; |
| | | this.fileLoading = true; |
| | | this.currentPageSrc = |
| | | return ( |
| | | ctx + |
| | | "/file/GetPdfPageImage" + |
| | | "?md5=" + |
| | | this.md5 + |
| | | this.preViewMd5 + |
| | | "&index=" + |
| | | page + |
| | | "&dpi=150"; |
| | | "&dpi=200" |
| | | ); |
| | | }, |
| | | }, |
| | | }; |
| | | </script> |
| | | <style scoped lang="less"> |
| | | .imageBox { |
| | | .preview { |
| | | width: 100%; |
| | | height: 300px; |
| | | overflow: auto; |
| | | position: relative; |
| | | img { |
| | | position: absolute; |
| | | width: auto; |
| | | height: 100%; |
| | | transition: transform 0.5s, width 0.3s, height 0.3s; |
| | | |
| | | .imageBox { |
| | | height: calc(100% - 30px); |
| | | overflow-x: hidden; |
| | | overflow-y: auto; |
| | | background: #ccc; |
| | | box-sizing: border-box; |
| | | } |
| | | |
| | | .imageBox:hover { |
| | | cursor: zoom-in !important; |
| | | } |
| | | |
| | | .bottom_tool { |
| | | height: 30px; |
| | | background-color: rgba(0, 0, 0, 0.8); |
| | | display: flex; |
| | | justify-content: flex-end; |
| | | align-items: center; |
| | | svg { |
| | | margin-right: 10px; |
| | | fill: #999; |
| | | } |
| | | svg:hover { |
| | | fill: #fff; |
| | | cursor: pointer; |
| | | } |
| | | } |
| | | } |
| | | </style> |