4cc6797f17
Note how the `getFontID`-method in `src/core/fonts.js` is *completely* global, rather than properly tied to the current document. This means that if you repeatedly open and parse/render, and then close, even the *same* PDF document the `fontID`s will still be incremented continuously. For comparison the `createObjId` method, on `idFactory`, will always create a *consistent* id, assuming of course that the document and its pages are parsed/rendered in the same order. In order to address this inconsistency, it thus seems reasonable to add a new `createFontId` method on the `idFactory` and use that when obtaining `fontID`s. (When the current `getFontID` method was added the `idFactory` didn't actually exist yet, which explains why the code looks the way it does.) *Please note:* Since the document id is (still) part of the `loadedName`, it's thus not possible for different documents to have identical font names.
131 lines
3.1 KiB
JavaScript
131 lines
3.1 KiB
JavaScript
/* Copyright 2017 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 { Page, PDFDocument } from "../../src/core/document.js";
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import { assert } from "../../src/shared/util.js";
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import { isNodeJS } from "../../src/shared/is_node.js";
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import { isRef } from "../../src/core/primitives.js";
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import { StringStream } from "../../src/core/stream.js";
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class DOMFileReaderFactory {
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static async fetch(params) {
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const response = await fetch(params.path);
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if (!response.ok) {
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throw new Error(response.statusText);
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}
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return new Uint8Array(await response.arrayBuffer());
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}
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}
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class NodeFileReaderFactory {
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static async fetch(params) {
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const fs = require("fs");
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return new Promise((resolve, reject) => {
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fs.readFile(params.path, (error, data) => {
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if (error || !data) {
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reject(error || new Error(`Empty file for: ${params.path}`));
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return;
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}
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resolve(new Uint8Array(data));
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});
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});
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}
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}
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const TEST_PDFS_PATH = {
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dom: "../pdfs/",
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node: "./test/pdfs/",
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};
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function buildGetDocumentParams(filename, options) {
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const params = Object.create(null);
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if (isNodeJS) {
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params.url = TEST_PDFS_PATH.node + filename;
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} else {
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params.url = new URL(TEST_PDFS_PATH.dom + filename, window.location).href;
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}
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for (const option in options) {
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params[option] = options[option];
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}
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return params;
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}
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class XRefMock {
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constructor(array) {
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this._map = Object.create(null);
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for (const key in array) {
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const obj = array[key];
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this._map[obj.ref.toString()] = obj.data;
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}
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}
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fetch(ref) {
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return this._map[ref.toString()];
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}
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fetchAsync(ref) {
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return Promise.resolve(this.fetch(ref));
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}
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fetchIfRef(obj) {
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if (!isRef(obj)) {
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return obj;
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}
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return this.fetch(obj);
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}
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fetchIfRefAsync(obj) {
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return Promise.resolve(this.fetchIfRef(obj));
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}
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}
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function createIdFactory(pageIndex) {
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const pdfManager = {
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get docId() {
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return "d0";
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},
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};
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const stream = new StringStream("Dummy_PDF_data");
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const pdfDocument = new PDFDocument(pdfManager, stream);
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const page = new Page({
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pdfManager: pdfDocument.pdfManager,
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xref: pdfDocument.xref,
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pageIndex,
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globalIdFactory: pdfDocument._globalIdFactory,
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});
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return page._localIdFactory;
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}
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function isEmptyObj(obj) {
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assert(
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typeof obj === "object" && obj !== null,
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"isEmptyObj - invalid argument."
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);
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return Object.keys(obj).length === 0;
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}
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export {
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DOMFileReaderFactory,
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NodeFileReaderFactory,
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XRefMock,
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buildGetDocumentParams,
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TEST_PDFS_PATH,
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createIdFactory,
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isEmptyObj,
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};
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