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5299eb2b83
Given that these classes are only used from the "FetchBinaryData" message handler, the `name`/`filename` parameters should never actually be missing and if they are that's a bug elsewhere in the code-base. Furthermore a missing `name`/`filename` parameter would result in a "nonsense" URL and the actual data fetching would then fail instead, hence keeping this old validation code just doesn't seem necessary.
60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
/* Copyright 2015 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 { fetchData } from "./display_utils.js";
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import { unreachable } from "../shared/util.js";
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class BaseWasmFactory {
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constructor({ baseUrl = null }) {
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if (
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(typeof PDFJSDev === "undefined" || PDFJSDev.test("TESTING")) &&
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this.constructor === BaseWasmFactory
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) {
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unreachable("Cannot initialize BaseWasmFactory.");
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}
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this.baseUrl = baseUrl;
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}
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async fetch({ filename }) {
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if (!this.baseUrl) {
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throw new Error("Ensure that the `wasmUrl` API parameter is provided.");
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}
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const url = `${this.baseUrl}${filename}`;
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return this._fetch(url).catch(reason => {
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throw new Error(`Unable to load wasm data at: ${url}`);
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});
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}
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/**
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* @ignore
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* @returns {Promise<Uint8Array>}
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*/
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async _fetch(url) {
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unreachable("Abstract method `_fetch` called.");
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}
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}
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class DOMWasmFactory extends BaseWasmFactory {
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/**
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* @ignore
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*/
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async _fetch(url) {
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return fetchData(url, /* type = */ "bytes");
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}
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}
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export { BaseWasmFactory, DOMWasmFactory };
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