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<script>
import { getDocument, GlobalWorkerOptions } from 'pdfjs-dist/legacy/build/pdf';
import Page from './page/index.vue';
GlobalWorkerOptions.workerSrc = '/assets/webpack/pdfjs/pdf.worker.min.js';
export default {
components: { Page },
props: {
pdf: {
type: [String, Uint8Array],
required: true,
},
},
data() {
return {
pages: [],
};
},
computed: {
document() {
return typeof this.pdf === 'string' ? this.pdf : { data: this.pdf };
},
hasPDF() {
return this.pdf && this.pdf.length > 0;
},
availablePages() {
return this.pages.filter(Boolean);
},
},
watch: { pdf: 'load' },
mounted() {
if (this.hasPDF) this.load();
},
methods: {
load() {
this.pages = [];
return getDocument({
url: this.document,
cMapUrl: '/assets/webpack/pdfjs/cmaps/',
cMapPacked: true,
})
.promise.then(this.renderPages)
.then((pages) => {
this.pages = pages;
this.$emit('pdflabload', pages.length);
})
.catch((error) => {
this.$emit('pdflaberror', error);
});
},
renderPages(pdf) {
const pagePromises = [];
for (let num = 1; num <= pdf.numPages; num += 1) {
pagePromises.push(pdf.getPage(num));
}
return Promise.all(pagePromises);
},
},
};
</script>
<template>
<div v-if="hasPDF" class="pdf-viewer">
<page v-for="(page, index) in availablePages" :key="index" :page="page" :number="index + 1" />
</div>
</template>
<style>
.pdf-viewer {
background: url('./assets/img/bg.gif');
display: flex;
flex-flow: column nowrap;
}
</style>
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