pdf.js/web/viewer_compatibility.js
Jonas Jenwald 349b7d5e9c Remove the disableFullscreen hack for embedded IE 11 (issue 9585)
It appears that Microsoft silently fixed the problem that required disabling of fullscreen mode, in e.g. `iframe`s, in IE 11; please see issue 4711 and PR 5525 for historical context.

Unfortunately my Google-fu isn't strong enough to find any *official* information regarding the fixing of the browser bug in IE. However testing of the default viewer in IE 11, with this patch applied, it now appears that Presentation Mode is working correctly even in an `iframe` in IE 11.
Further anecdotal evidence that the bug is in fact fixed, is for example that jQuery previously contained a work-around for the IE bug. However, that's removed over two years ago now; see ff1a0822f7 and the issues referenced there.

Given that the default viewer isn't intended to be used as-is anyway (in custom deployments), it didn't seem necessary to keep the `disableFullscreen` option around since it was *only* ever added for compatibility purposes.

Fixes 9585.
2018-06-14 12:25:28 +02:00

33 lines
1.2 KiB
JavaScript

/* Copyright 2018 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.
*/
let compatibilityParams = Object.create(null);
if (typeof PDFJSDev === 'undefined' || PDFJSDev.test('GENERIC')) {
const userAgent =
(typeof navigator !== 'undefined' && navigator.userAgent) || '';
const isAndroid = /Android/.test(userAgent);
const isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent);
// Limit canvas size to 5 mega-pixels on mobile.
// Support: Android, iOS
(function checkCanvasSizeLimitation() {
if (isIOS || isAndroid) {
compatibilityParams.maxCanvasPixels = 5242880;
}
})();
}
exports.viewerCompatibilityParams = Object.freeze(compatibilityParams);