<!-- @format -->
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<template>
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<div class="pdfBox-component">
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<div class="preview" v-if="this.preViewMd5">
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<div id="imageParent" class="imageBox"></div>
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<div class="bottom_tool">
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<!-- <svg
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t="1718330411310"
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@click="downloadPdf"
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class="icon"
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viewBox="0 0 1024 1024"
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version="1.1"
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xmlns="http://www.w3.org/2000/svg"
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p-id="7121"
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width="20"
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height="20"
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>
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<path
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d="M1022.955204 522.570753c0 100.19191-81.516572 181.698249-181.718715 181.698249l-185.637977 0c-11.2973 0-20.466124-9.168824-20.466124-20.466124 0-11.307533 9.168824-20.466124 20.466124-20.466124l185.637977 0c77.628008 0 140.786467-63.148226 140.786467-140.766001 0-77.423347-62.841234-140.448776-140.203182-140.766001-0.419556 0.030699-0.818645 0.051165-1.217734 0.061398-5.945409 0.143263-11.686157-2.292206-15.687284-6.702656-4.001127-4.400217-5.894244-10.335393-5.167696-16.250102 1.330298-10.806113 1.944282-19.760043 1.944282-28.192086 0-60.763922-23.658839-117.884874-66.617234-160.833035-42.968627-42.968627-100.089579-66.617234-160.843268-66.617234-47.368844 0-92.742241 14.449084-131.208321 41.781592-37.616736 26.738991-65.952084 63.700811-81.925894 106.884332-2.425236 6.538927-8.012488 11.399631-14.827707 12.893658-6.815219 1.483794-13.927197-0.603751-18.859533-5.54632-19.289322-19.330254-44.943608-29.972639-72.245418-29.972639-56.322773 0-102.146425 45.813419-102.146425 102.125959 0 0.317225 0.040932 0.982374 0.092098 1.627057 0.061398 0.920976 0.122797 1.831718 0.153496 2.762927 0.337691 9.465582-5.863545 17.928325-15.001669 20.455891-32.356942 8.933463-61.541635 28.550243-82.181721 55.217602-21.305235 27.516704-32.571836 60.508096-32.571836 95.41307 0 86.244246 70.188572 156.422585 156.443052 156.422585l169.981393 0c11.2973 0 20.466124 9.15859 20.466124 20.466124 0 11.2973-9.168824 20.466124-20.466124 20.466124l-169.981393 0c-108.828614 0-197.3753-88.536452-197.3753-197.354833 0-44.053332 14.223956-85.712127 41.126676-120.473839 22.809495-29.460985 53.897537-52.086285 88.710414-64.816215 5.065366-74.322729 67.149353-133.2447 142.751215-133.2447 28.386514 0 55.504128 8.217149 78.651314 23.52581 19.657712-39.868009 48.842405-74.169233 85.497233-100.212376 45.434795-32.295544 99.004875-49.354058 154.918325-49.354058 71.692832 0 139.087778 27.915793 189.782368 78.600149 50.694589 50.694589 78.610382 118.089535 78.610382 189.782368 0 3.704368-0.102331 7.470135-0.296759 11.368932C952.633602 352.568894 1022.955204 429.511287 1022.955204 522.570753zM629.258611 820.711014l-102.023628 102.013395c-3.990894 4.001127-9.230222 5.996574-14.46955 5.996574s-10.478655-1.995447-14.46955-5.996574l-102.023628-102.013395c-7.992021-7.992021-7.992021-20.947078 0-28.939099s20.947078-8.002254 28.939099 0l67.087954 67.077721 0-358.699522c0-11.2973 9.15859-20.466124 20.466124-20.466124 11.307533 0 20.466124 9.168824 20.466124 20.466124l0 358.699522 67.087954-67.077721c7.992021-8.002254 20.947078-7.992021 28.939099 0S637.250632 812.718993 629.258611 820.711014z"
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p-id="7122"
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></path>
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</svg> -->
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</div>
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</div>
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<div class="notBox" v-if="totalPage == 0 && !loading">
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<el-empty description="暂无数据"></el-empty>
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</div>
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<div class="notBox" v-if="loading" v-loading="loading"></div>
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</div>
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</template>
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<script>
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import Viewer from 'viewerjs'
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import 'viewerjs/dist/viewer.css'
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import { getResourcePath } from '@/assets/methods/resources'
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export default {
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name: 'pdf_view',
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props: {
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md5: {
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type: String,
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},
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title: {
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type: String,
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},
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isClear: {
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type: Boolean,
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default: false,
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},
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},
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data() {
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return {
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currentPageSrc: '',
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currentPage: 1,
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totalPage: 1,
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viewerCon: null,
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preViewMd5: '',
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loading: false,
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}
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},
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watch: {
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isClear: {
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immediate: true,
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handler(val) {
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if (val == true) this.preViewMd5 = ''
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},
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},
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md5: {
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immediate: true,
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handler(val) {
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if (val) {
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this.preViewMd5 = val
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this.currentPage = 1
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this.currentPageSrc = ''
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this.totalPage = 1
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this.viewerCon?.destroy()
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}
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},
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},
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},
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mounted() {
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this.scrollBottom()
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this.clearDom()
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this.getFileInfo()
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},
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methods: {
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async downloadPdf() {
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window.open(await getResourcePath(this.preViewMd5))
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},
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domViewer() {
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// let ele = (this.container ? this.container : document).getElementById(
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// 'imageParent'
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// )
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let ele = document.getElementById('imageParent')
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this.viewerCon = new Viewer(ele, {
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inline: false,
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container: this.container
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? this.container.querySelector('#app')
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: 'body',
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navbar: true, // 显示导航栏
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toolbar: true, // 显示工具栏
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title: true, // 显示标题
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})
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},
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clearDom() {
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let ele = document.getElementById('imageParent')
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ele.innerHtml = ''
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},
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createDom(page) {
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var that = this
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let ele = document.getElementById('imageParent')
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const img = document.createElement('img')
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img.src = this.getPageImage(page)
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img.alt = ''
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img.style.maxWidth = '90%'
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img.style.padding = '30px 5%'
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img.className = 'imgHover'
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img.onclick = () => {
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that.viewerCon?.destroy()
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that.domViewer()
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}
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ele.appendChild(img)
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},
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scrollBottom() {
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var that = this
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var ele = document.getElementById('imageParent')
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ele.addEventListener('scroll', function () {
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// 计算滚动条距离底部的位置
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const scrollBottom = ele.scrollHeight - ele.scrollTop - ele.clientHeight
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if (scrollBottom <= 10) {
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that.currentPage++
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if (that.currentPage <= that.totalPage) {
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that.createDom(that.currentPage, ele)
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}
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}
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})
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},
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getFileInfo() {
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// 获取目录
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this.loading = true
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this.MG.file
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.getPdfInfo({ md5: this.preViewMd5 })
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.then((res) => {
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try {
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if(typeof res === 'string' && res !== null ){
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this.totalPage = JSON.parse(res).totalPages
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}else if(typeof res === 'object' && res !== null) {
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this.totalPage = res.totalPages
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}
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} catch (error) {
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console.log(error,'pdf返回值类型错误');
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}
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this.createDom(this.currentPage)
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this.loading = false
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})
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.catch((err) => {
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this.totalPage = 0
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this.createDom(this.currentPage)
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console.error(err)
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this.loading = false
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})
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},
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getPageImage(page) {
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const ctx = process.env.VUE_APP_API_URL
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return (
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ctx +
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'/file/GetPdfPageImage' +
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'?md5=' +
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this.preViewMd5 +
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'&index=' +
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page +
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'&dpi=200'
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)
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},
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},
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}
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</script>
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