pdf.js/web/genericcom.js
Jonas Jenwald b2dfb55136 Re-factor the scripting getter in GENERIC-builds, since using the same sandbox for *multiple* PDF documents seems highly questionable
Similar to the previous patch, the GENERIC default viewer is capable of opening more than *one* PDF document and we should ensure that we handle that case correctly.
2020-12-06 14:21:49 +01:00

85 lines
2.3 KiB
JavaScript

/* Copyright 2017 Mozilla Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { DefaultExternalServices, PDFViewerApplication } from "./app.js";
import { AppOptions } from "./app_options.js";
import { BasePreferences } from "./preferences.js";
import { DownloadManager } from "./download_manager.js";
import { GenericL10n } from "./genericl10n.js";
import { loadScript } from "pdfjs-lib";
if (typeof PDFJSDev !== "undefined" && !PDFJSDev.test("GENERIC")) {
throw new Error(
'Module "pdfjs-web/genericcom" shall not be used outside ' +
"GENERIC build."
);
}
const GenericCom = {};
class GenericPreferences extends BasePreferences {
async _writeToStorage(prefObj) {
localStorage.setItem("pdfjs.preferences", JSON.stringify(prefObj));
}
async _readFromStorage(prefObj) {
return JSON.parse(localStorage.getItem("pdfjs.preferences"));
}
}
class GenericScripting {
constructor() {
this._ready = loadScript(AppOptions.get("sandboxBundleSrc")).then(() => {
return window.pdfjsSandbox.QuickJSSandbox();
});
}
async createSandbox(data) {
const sandbox = await this._ready;
sandbox.create(data);
}
async dispatchEventInSandbox(event) {
const sandbox = await this._ready;
sandbox.dispatchEvent(event);
}
async destroySandbox() {
const sandbox = await this._ready;
sandbox.nukeSandbox();
}
}
class GenericExternalServices extends DefaultExternalServices {
static createDownloadManager(options) {
return new DownloadManager();
}
static createPreferences() {
return new GenericPreferences();
}
static createL10n({ locale = "en-US" }) {
return new GenericL10n(locale);
}
static get scripting() {
return new GenericScripting();
}
}
PDFViewerApplication.externalServices = GenericExternalServices;
export { GenericCom };