68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
import JSZip from 'jszip';
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import axios from '~/lib/utils/axios_utils';
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import { __ } from '~/locale';
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export default class SketchLoader {
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constructor(container) {
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this.container = container;
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this.loadingIcon = this.container.querySelector('.js-loading-icon');
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this.load().catch(() => {
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this.error();
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});
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}
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async load() {
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const zipContents = await this.getZipContents();
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const previewContents = await zipContents.files['previews/preview.png'].async('uint8array');
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const blob = new Blob([previewContents], {
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type: 'image/png',
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});
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this.render(window.URL.createObjectURL(blob));
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}
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async getZipContents() {
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const { data } = await axios.get(this.container.dataset.endpoint, {
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responseType: 'arraybuffer',
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});
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return JSZip.loadAsync(data);
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}
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render(previewUrl) {
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const previewLink = document.createElement('a');
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const previewImage = document.createElement('img');
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previewLink.href = previewUrl;
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previewLink.target = '_blank';
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previewImage.src = previewUrl;
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previewImage.className = 'img-fluid';
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previewLink.appendChild(previewImage);
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this.container.appendChild(previewLink);
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this.removeLoadingIcon();
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}
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error() {
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const errorMsg = document.createElement('p');
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errorMsg.className = 'gl-mt-3 gl-mb-3 text-center';
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errorMsg.textContent = __(`
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Cannot show preview. For previews on sketch files, they must have the file format
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introduced by Sketch version 43 and above.
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`);
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this.container.appendChild(errorMsg);
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this.removeLoadingIcon();
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}
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removeLoadingIcon() {
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if (this.loadingIcon) {
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this.loadingIcon.remove();
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}
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}
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}
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