65 lines
2.0 KiB
JavaScript
65 lines
2.0 KiB
JavaScript
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/* 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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/* globals __non_webpack_require__ */
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import { BaseCanvasFactory, BaseCMapReaderFactory } from "./display_utils.js";
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import { isNodeJS } from "../shared/is_node.js";
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import { unreachable } from "../shared/util.js";
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let NodeCanvasFactory = class {
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constructor() {
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unreachable("Not implemented: NodeCanvasFactory");
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}
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};
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let NodeCMapReaderFactory = class {
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constructor() {
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unreachable("Not implemented: NodeCMapReaderFactory");
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}
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};
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if ((typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) && isNodeJS) {
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NodeCanvasFactory = class extends BaseCanvasFactory {
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create(width, height) {
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if (width <= 0 || height <= 0) {
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throw new Error("Invalid canvas size");
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}
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const Canvas = __non_webpack_require__("canvas");
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const canvas = Canvas.createCanvas(width, height);
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return {
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canvas,
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context: canvas.getContext("2d"),
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};
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}
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};
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NodeCMapReaderFactory = class extends BaseCMapReaderFactory {
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_fetchData(url, compressionType) {
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return new Promise((resolve, reject) => {
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const fs = __non_webpack_require__("fs");
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fs.readFile(url, (error, data) => {
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if (error || !data) {
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reject(new Error(error));
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return;
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}
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resolve({ cMapData: new Uint8Array(data), compressionType });
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});
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});
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}
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};
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}
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export { NodeCanvasFactory, NodeCMapReaderFactory };
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