pdf.js/examples/svgviewer/viewer.js
Jonas Jenwald 276fa4ad8f Replace *most* cases of var with let/const in the examples/ folder
These changes were done automatically, by using the `gulp lint --fix` command, in preparation for the next patch.
2021-03-12 17:16:59 +01:00

71 lines
2.0 KiB
JavaScript

/* Copyright 2014 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
"use strict";
if (!pdfjsLib.getDocument || !pdfjsViewer.PDFViewer) {
// eslint-disable-next-line no-alert
alert("Please build the pdfjs-dist library using\n `gulp dist-install`");
}
// The workerSrc property shall be specified.
//
pdfjsLib.GlobalWorkerOptions.workerSrc =
"../../node_modules/pdfjs-dist/build/pdf.worker.js";
// Some PDFs need external cmaps.
//
const CMAP_URL = "../../node_modules/pdfjs-dist/cmaps/";
const CMAP_PACKED = true;
const DEFAULT_URL = "../../web/compressed.tracemonkey-pldi-09.pdf";
const container = document.getElementById("viewerContainer");
const eventBus = new pdfjsViewer.EventBus();
// (Optionally) enable hyperlinks within PDF files.
const pdfLinkService = new pdfjsViewer.PDFLinkService({
eventBus,
});
const pdfViewer = new pdfjsViewer.PDFViewer({
container,
eventBus,
linkService: pdfLinkService,
renderer: "svg",
textLayerMode: 0,
});
pdfLinkService.setViewer(pdfViewer);
eventBus.on("pagesinit", function () {
// We can use pdfViewer now, e.g. let's change default scale.
pdfViewer.currentScaleValue = "page-width";
});
// Loading document.
const loadingTask = pdfjsLib.getDocument({
url: DEFAULT_URL,
cMapUrl: CMAP_URL,
cMapPacked: CMAP_PACKED,
});
loadingTask.promise.then(function (pdfDocument) {
// Document loaded, specifying document for the viewer and
// the (optional) linkService.
pdfViewer.setDocument(pdfDocument);
pdfLinkService.setDocument(pdfDocument, null);
});