547b8276e6
- Change (most) fields/methods into private ones, since that's now supported. - Tweak the constructor-parameters, and simplify the sandbox initialization w.r.t. the viewer components. - Remove some unused function/method parameters. - Slightly simplify the "updatefromsandbox"-handler by using local variables and inverting some conditions.
69 lines
1.9 KiB
JavaScript
69 lines
1.9 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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import { getPdfFilenameFromUrl, loadScript } from "pdfjs-lib";
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async function docProperties(pdfDocument) {
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const url = "",
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baseUrl = url.split("#")[0];
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// eslint-disable-next-line prefer-const
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let { info, metadata, contentDispositionFilename, contentLength } =
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await pdfDocument.getMetadata();
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if (!contentLength) {
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const { length } = await pdfDocument.getDownloadInfo();
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contentLength = length;
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}
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return {
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...info,
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baseURL: baseUrl,
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filesize: contentLength,
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filename: contentDispositionFilename || getPdfFilenameFromUrl(url),
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metadata: metadata?.getRaw(),
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authors: metadata?.get("dc:creator"),
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numPages: pdfDocument.numPages,
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URL: url,
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};
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}
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class GenericScripting {
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constructor(sandboxBundleSrc) {
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this._ready = loadScript(
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sandboxBundleSrc,
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/* removeScriptElement = */ true
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).then(() => {
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return window.pdfjsSandbox.QuickJSSandbox();
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});
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}
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async createSandbox(data) {
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const sandbox = await this._ready;
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sandbox.create(data);
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}
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async dispatchEventInSandbox(event) {
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const sandbox = await this._ready;
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setTimeout(() => sandbox.dispatchEvent(event), 0);
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}
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async destroySandbox() {
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const sandbox = await this._ready;
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sandbox.nukeSandbox();
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}
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}
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export { docProperties, GenericScripting };
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