c6d400ed06
While e.g. the `simpleviewer` and `singlepageviewer` examples work, since they're based on the `BaseViewer`-class, the standalone `pageviewer` example currently doesn't support either XFA- or StructTree-layers. This seems like an obvious oversight, which can be easily addressed simply by exporting the necessary functionality through `pdf_viewer.component.js`, similar to the existing Text/Annotation-layers. While working on, and testing, these changes I happened to notice a number of smaller things that's also fixed in this patch: - Ensure that `XfaLayerBuilder.render` always have a *consistent* return type, to prevent possible run-time failures in `PDFPageView`; PR 13908 follow-up. - Change the order of the options in the `XfaLayerBuilder`-constructor to agree with the parameter order in the `DefaultXfaLayerFactory.createXfaLayerBuilder`-method. - Add a missing `textHighlighterFactory`-option, in the JSDocs for the `PDFPageView`-class. - A couple of small tweaks in the `TextLayerBuilder.render`-method: Re-use an existing Array rather than creating a new one, and replace an `if` with optional chaining instead. *Please note:* For now XFA-support is currently disabled by default, similar to the regular viewer.
68 lines
2.3 KiB
JavaScript
68 lines
2.3 KiB
JavaScript
/* Copyright 2014 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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"use strict";
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if (!pdfjsLib.getDocument || !pdfjsViewer.PDFPageView) {
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// eslint-disable-next-line no-alert
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alert("Please build the pdfjs-dist library using\n `gulp dist-install`");
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}
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// The workerSrc property shall be specified.
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//
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pdfjsLib.GlobalWorkerOptions.workerSrc =
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"../../node_modules/pdfjs-dist/build/pdf.worker.js";
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// Some PDFs need external cmaps.
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//
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const CMAP_URL = "../../node_modules/pdfjs-dist/cmaps/";
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const CMAP_PACKED = true;
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const DEFAULT_URL = "../../web/compressed.tracemonkey-pldi-09.pdf";
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const PAGE_TO_VIEW = 1;
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const SCALE = 1.0;
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const container = document.getElementById("pageContainer");
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const eventBus = new pdfjsViewer.EventBus();
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// Loading document.
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const loadingTask = pdfjsLib.getDocument({
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url: DEFAULT_URL,
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cMapUrl: CMAP_URL,
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cMapPacked: CMAP_PACKED,
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});
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loadingTask.promise.then(function (pdfDocument) {
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// Document loaded, retrieving the page.
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return pdfDocument.getPage(PAGE_TO_VIEW).then(function (pdfPage) {
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// Creating the page view with default parameters.
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const pdfPageView = new pdfjsViewer.PDFPageView({
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container,
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id: PAGE_TO_VIEW,
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scale: SCALE,
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defaultViewport: pdfPage.getViewport({ scale: SCALE }),
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eventBus,
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// We can enable text/annotation/xfa/struct-layers, as needed.
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textLayerFactory: new pdfjsViewer.DefaultTextLayerFactory(),
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annotationLayerFactory: new pdfjsViewer.DefaultAnnotationLayerFactory(),
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xfaLayerFactory: new pdfjsViewer.DefaultXfaLayerFactory(),
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structTreeLayerFactory: new pdfjsViewer.DefaultStructTreeLayerFactory(),
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});
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// Associate the actual page with the view, and draw it.
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pdfPageView.setPdfPage(pdfPage);
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return pdfPageView.draw();
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});
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});
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