mirror of
https://codeup.aliyun.com/67762337eccfc218f6110e0e/vue/learning-system-portal.git
synced 2025-12-11 20:06:44 +08:00
案例pdf
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@@ -31,17 +31,21 @@
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<span v-if="loadedRatio !== 1" style="margin:0 10px;">0 / 0</span>
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<span v-else style="margin:0 10px;">{{ currentPage }} / {{ pageCount }}</span>
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<el-button @click="nextPage('footer')" :disabled="loadedRatio !== 1" icon="el-icon-arrow-right"></el-button> -->
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<span class="pag-text-msg" v-if="moreState == 1"> 加载更多 </span>
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<span class="pag-text-msg" v-if="moreState == 2">加载中</span>
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<span class="pag-text-msg" v-if="moreState == 3">没有更多数据了</span>
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<el-button type="primary" @click="clickMore()" v-if="moreState == 1">加载更多</el-button>
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</div>
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<div v-if="moreState == 1" class=" xcontent postfixt-bot">
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<interactBar :data="data" :type="3" :comments="false" :shares="true"></interactBar>
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<el-button>返回顶部</el-button>
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</div>
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</div>
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</template>
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<script >
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import interactBar from '@/components/Portal/interactBar.vue';
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import pdf from "vue-pdf";
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export default {
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components: { pdf },
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components: { pdf,interactBar },
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props: {
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filePath: {
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type: String,
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@@ -55,6 +59,9 @@ export default {
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type: Boolean,
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default: false,
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},
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data:{
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type:Array,
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}
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},
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data() {
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return {
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@@ -66,7 +73,7 @@ export default {
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loadedRatio:0,// 加载进度
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showProgress:true,
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moreState:1,// 1 加载更多 2 加载中 3无数据
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isscroll:true,
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isscroll:false,
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pdfpage:0,
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};
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},
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@@ -101,41 +108,49 @@ export default {
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},
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methods: {
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loadProgress(e){
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// console.log(e,'loadProgress');
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console.log(e,'loadProgress');
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},
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loadedPageHandle(e){
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console.log(e,'loadedPageHandle');
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this.pdfpage = e;
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},
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loadPdfHandle(e){
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// console.log(e,'loadPdfHandle');
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console.log(e,'loadPdfHandle');
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},
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clickMore(){
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if(this.totalPages>this.showPages){
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this.showPages++;
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this.moreState = 2;
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}
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// this.isscroll = true;
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},
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this.isscroll = true;
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},
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//加载页面
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loadInitPdf(url) {
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//console.log('加载pdf文件:'+url)
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//if(url && url.indexOf('.pdf')>-1){
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if(url && url.indexOf('.pdf')>-1){
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let loadingTask = pdf.createLoadingTask(url);
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this.src=loadingTask;
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loadingTask.promise.then((pdfrs) =>{
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this.totalPages=pdfrs.numPages;
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if(pdfrs.numPages>this.initNum){
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loadingTask.promise.then((pdf) =>{
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console.log(pdf)
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this.totalPages=pdf.numPages;
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if(pdf.numPages>this.initNum){
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this.showPages = this.initNum;
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} else{
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this.showPages =pdfrs.numPages;
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this.showPages =pdf.numPages;
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}
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}).catch((err) =>{
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this.$message.error("加载内容失败,请联系管理员");
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});
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//}
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}
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},
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handleScroll() {
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@@ -143,30 +158,39 @@ export default {
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let innerHeight = document.querySelector('#pdf-perView').clientHeight
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let outerHeight = document.documentElement.clientHeight
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let scrollTop = document.documentElement.scrollTop
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if((outerHeight + scrollTop + 350) >= innerHeight) {
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if(this.isscroll){
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this.debounce(this.clickMore(),6000);
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}
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if( this.showPages >= this.totalPages){
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this.isscroll = false
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}
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}
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if(this.isscroll){
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this.showPages++;
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this.moreState = 2;
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this.debounce(this.loadInitPdf(),5000);
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}
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// console.log(this.pdfpage,'000')
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// console.log(this.totalPages,this.pdfpage)
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if(this.pdfpage >= this.totalPages){
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this.isscroll = false
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this.moreState = 3
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this.isscroll = false;
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this.moreState = 3;
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// console.log('hcuewhf')
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}
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// if(scrollTop > 400) {
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// document.querySelector('#articleAnking').style.cssText = "position: fixed;top: 0;width:242.5px";
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// } else {
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// document.querySelector('#articleAnking').style.cssText = "position: static";
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// }
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},
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debounce(func, wait) {// 非立即执行
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let timeout;
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return function () {
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let context = this;
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let args = arguments;
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if (timeout) clearTimeout(timeout);
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timeout = setTimeout(() => {
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func.apply(context, args)
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}, wait);
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}
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},
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let timeout;
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return function () {
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let context = this;
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let args = arguments;
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if (timeout) clearTimeout(timeout);
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timeout = setTimeout(() => {
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func.apply(context, args)
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}, wait);
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}
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},
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prePage(type) {
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if (this.currentPage > 1) {
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this.currentPage--;
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@@ -210,12 +234,19 @@ export default {
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</script>
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<style scoped lang="scss">
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.postfixt-bot{
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height: 100px;
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width: 100%;
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position: fixed;
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bottom: 0;
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background-color: #666;
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z-index: 999;
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}
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.pdf-perView {
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.pdf-box {
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min-height: 300px;
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width: 100%;
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//border: 1px solid #dfdfdf;
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background-color: #e9e9e9;
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overflow-y: hidden;
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overflow-x: hidden;
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>span{
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