dc0df0a3c2
The polyfill that we use was recently split into two packages, and it now consists of a "core" package and a browser-specific package that build upon the former. Hence we need to update to use the "core" package, and slightly tweak the code that loads/initializes the polyfill; see also https://www.npmjs.com/package/path2d This patch was tested successfully with the [pdf2png example](https://github.com/mozilla/pdf.js/tree/master/examples/node/pdf2png), after running `gulp dist-install` locally, using [this PDF document](https://bug810214.bmoattachments.org/attachment.cgi?id=9254990) which contains Type3-fonts that render using `Path2D`.
118 lines
2.9 KiB
JavaScript
118 lines
2.9 KiB
JavaScript
/* Copyright 2020 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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import {
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BaseCanvasFactory,
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BaseCMapReaderFactory,
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BaseFilterFactory,
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BaseStandardFontDataFactory,
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} from "./base_factory.js";
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import { isNodeJS, warn } from "../shared/util.js";
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if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
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throw new Error(
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'Module "./node_utils.js" shall not be used with MOZCENTRAL builds.'
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);
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}
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let fs, canvas, path2d;
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if (isNodeJS) {
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// Native packages.
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fs = await __non_webpack_import__("fs");
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// Optional, third-party, packages.
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try {
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canvas = await __non_webpack_import__("canvas");
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} catch {}
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try {
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path2d = await __non_webpack_import__("path2d");
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} catch {}
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}
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if (typeof PDFJSDev !== "undefined" && !PDFJSDev.test("SKIP_BABEL")) {
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(function checkDOMMatrix() {
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if (globalThis.DOMMatrix || !isNodeJS) {
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return;
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}
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const DOMMatrix = canvas?.DOMMatrix;
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if (DOMMatrix) {
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globalThis.DOMMatrix = DOMMatrix;
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} else {
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warn("Cannot polyfill `DOMMatrix`, rendering may be broken.");
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}
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})();
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(function checkPath2D() {
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if (globalThis.Path2D || !isNodeJS) {
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return;
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}
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const CanvasRenderingContext2D = canvas?.CanvasRenderingContext2D;
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const applyPath2DToCanvasRenderingContext =
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path2d?.applyPath2DToCanvasRenderingContext;
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const Path2D = path2d?.Path2D;
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if (
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CanvasRenderingContext2D &&
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applyPath2DToCanvasRenderingContext &&
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Path2D
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) {
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applyPath2DToCanvasRenderingContext(CanvasRenderingContext2D);
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globalThis.Path2D = Path2D;
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} else {
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warn("Cannot polyfill `Path2D`, rendering may be broken.");
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}
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})();
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}
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const fetchData = function (url) {
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return fs.promises.readFile(url).then(data => new Uint8Array(data));
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};
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class NodeFilterFactory extends BaseFilterFactory {}
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class NodeCanvasFactory extends BaseCanvasFactory {
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/**
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* @ignore
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*/
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_createCanvas(width, height) {
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return canvas.createCanvas(width, height);
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}
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}
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class NodeCMapReaderFactory extends BaseCMapReaderFactory {
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/**
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* @ignore
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*/
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_fetchData(url, compressionType) {
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return fetchData(url).then(data => ({ cMapData: data, compressionType }));
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}
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}
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class NodeStandardFontDataFactory extends BaseStandardFontDataFactory {
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/**
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* @ignore
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*/
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_fetchData(url) {
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return fetchData(url);
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}
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}
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export {
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NodeCanvasFactory,
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NodeCMapReaderFactory,
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NodeFilterFactory,
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NodeStandardFontDataFactory,
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};
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