18e0b10d3c
With the changes in previous patches, the `disableCreateObjectURL` option/functionality is no longer used for anything in the API and/or in the Worker code. Note however that there's some functionality, mainly related to file loading/downloading, in the GENERIC version of the default viewer which still depends on this option. Hence the `disableCreateObjectURL` option (and related compatibility code) is moved into the viewer, see e.g. `web/app_options.js`, such that it's still available in the default viewer.
53 lines
1.9 KiB
JavaScript
53 lines
1.9 KiB
JavaScript
/* Copyright 2018 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 compatibilityParams = Object.create(null);
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if (typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")) {
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const userAgent =
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(typeof navigator !== "undefined" && navigator.userAgent) || "";
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const platform =
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(typeof navigator !== "undefined" && navigator.platform) || "";
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const maxTouchPoints =
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(typeof navigator !== "undefined" && navigator.maxTouchPoints) || 1;
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const isAndroid = /Android/.test(userAgent);
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const isIE = /Trident/.test(userAgent);
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const isIOS =
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/\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) ||
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(platform === "MacIntel" && maxTouchPoints > 1);
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const isIOSChrome = /CriOS/.test(userAgent);
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// Checks if possible to use URL.createObjectURL()
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// Support: IE, Chrome on iOS
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(function checkOnBlobSupport() {
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// Sometimes IE and Chrome on iOS losing the data created with
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// createObjectURL(), see issues #3977 and #8081.
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if (isIE || isIOSChrome) {
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compatibilityParams.disableCreateObjectURL = true;
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}
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})();
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// Limit canvas size to 5 mega-pixels on mobile.
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// Support: Android, iOS
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(function checkCanvasSizeLimitation() {
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if (isIOS || isAndroid) {
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compatibilityParams.maxCanvasPixels = 5242880;
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}
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})();
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}
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const viewerCompatibilityParams = Object.freeze(compatibilityParams);
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export { viewerCompatibilityParams };
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