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82624a5e50
Compared to regular Objects there's a number of advantages to using Maps: - They support proper iteration. - They have a simple way to check for the existence of data. - They have a simple/efficient way to check the number of elements. If this functionality was added today, I cannot imagine that we'd choose an Object for this data. In the Firefox PDF Viewer sending Maps to the scripting-implementation should be fine, since it uses the browser `Cu.cloneInto` functionality; see https://searchfox.org/firefox-main/source/toolkit/components/pdfjs/content/PdfSandbox.sys.mjs However with QuickJS, used by the GENERIC viewer, all data needs to be stringified and Maps are converted into regular Objects (see also PR 21664). Hence the `objects` property, in the scripting-implementation, is converted back into a Map using the (renamed) `createMap` helper function.
51 lines
1.3 KiB
JavaScript
51 lines
1.3 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 FieldType = {
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none: 0,
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number: 1,
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percent: 2,
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date: 3,
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time: 4,
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};
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function createMap(val) {
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return val instanceof Map ? val : new Map(val ? Object.entries(val) : null);
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}
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function getFieldType(actions) {
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let format = actions.get("Format");
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if (!format) {
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return FieldType.none;
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}
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format = format[0].trim();
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if (format.startsWith("AFNumber_")) {
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return FieldType.number;
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}
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if (format.startsWith("AFPercent_")) {
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return FieldType.percent;
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}
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if (format.startsWith("AFDate_")) {
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return FieldType.date;
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}
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if (format.startsWith("AFTime_")) {
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return FieldType.time;
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}
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return FieldType.none;
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}
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export { createMap, FieldType, getFieldType };
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