cc3a6563ee
The only reason, as far as I can tell, for parsing the Metadata on the main-thread is how it was originally implemented. When Metadata support was first implemented, it utilized the [`DOMParser`](https://developer.mozilla.org/en-US/docs/Web/API/DOMParser) which isn't available in workers. Today, with the custom XML-parser being used, that's no longer an issue and it seems reasonable to move the Metadata parsing to the worker-thread[1], since that's where all parsing should happen (for performance reasons). Based on these changes, we'll be able to reduce the now unnecessary duplication of the XML-parser (and related code) in both of the *built* `pdf.js`/`pdf.worker.js` files. Finally, this patch changes the `_repair` method to use "Array + join" rather than string concatenation. --- [1] This needed the previous patch, to enable sending of `Map`s between threads with workers disabled.
42 lines
1.0 KiB
JavaScript
42 lines
1.0 KiB
JavaScript
/* Copyright 2012 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 { objectFromEntries } from "../shared/util.js";
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class Metadata {
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constructor({ parsedData, rawData }) {
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this._metadataMap = parsedData;
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this._data = rawData;
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}
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getRaw() {
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return this._data;
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}
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get(name) {
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return this._metadataMap.get(name) ?? null;
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}
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getAll() {
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return objectFromEntries(this._metadataMap);
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}
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has(name) {
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return this._metadataMap.has(name);
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}
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}
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export { Metadata };
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