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49e8240c19
This adds a basic non-MOZCENTRAL polyfill for now, which we should be able to remove once the next QuickJS version is released; note the pending changelog at f1139494d1/Changelog (L7)
69 lines
2.1 KiB
JavaScript
69 lines
2.1 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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const VIEWER_TYPE = "PDF.js";
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const VIEWER_VARIATION = "Full";
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const VIEWER_VERSION = 21.00720099;
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const FORMS_VERSION = 21.00720099;
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const USERACTIVATION_CALLBACKID = 0;
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const USERACTIVATION_MAXTIME_VALIDITY = 5000;
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function serializeError(error) {
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const value = `${error.toString()}\n${error.stack}`;
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return { command: "error", value };
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}
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// Helpers for simple `Map.prototype.getOrInsertComputed()` invocations,
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// to avoid duplicate function creation.
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const makeArr = () => [];
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const makeMap = () => new Map();
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if (typeof PDFJSDev === "undefined" || !PDFJSDev.test("MOZCENTRAL")) {
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// TODO: Remove this once `Math.sumPrecise` is supported in QuickJS.
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//
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// Note that this isn't a "proper" polyfill, but since we're only using it to
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// replace `Array.prototype.reduce()` invocations it should be fine.
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if (typeof Math.sumPrecise !== "function") {
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Math.sumPrecise = function (numbers) {
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return numbers.reduce((a, b) => a + b, 0);
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};
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}
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// TODO: Remove this once `Map.prototype.getOrInsertComputed` is supported in
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// QuickJS.
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if (typeof Map.prototype.getOrInsertComputed !== "function") {
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// eslint-disable-next-line no-extend-native
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Map.prototype.getOrInsertComputed = function (key, callbackFn) {
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if (!this.has(key)) {
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this.set(key, callbackFn(key));
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}
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return this.get(key);
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};
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}
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}
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export {
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FORMS_VERSION,
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makeArr,
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makeMap,
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serializeError,
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USERACTIVATION_CALLBACKID,
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USERACTIVATION_MAXTIME_VALIDITY,
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VIEWER_TYPE,
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VIEWER_VARIATION,
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VIEWER_VERSION,
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};
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