@instructure/canvas-rce
Version:
A component wrapping Canvas's usage of Tinymce
37 lines (36 loc) • 1.31 kB
JavaScript
/*
* Copyright (C) 2025 - present Instructure, Inc.
*
* This file is part of Canvas.
*
* Canvas is free software: you can redistribute it and/or modify it under
* the terms of the GNU Affero General Public License as published by the Free
* Software Foundation, version 3 of the License.
*
* Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
* details.
*
* You should have received a copy of the GNU Affero General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
export function findMediaPlayerIframe(elem) {
if (!elem) return null;
if (elem.tagName === 'IFRAME') {
// we have the iframe
return elem;
}
if (elem.firstElementChild?.tagName === 'IFRAME') {
// we have the shim tinymce puts around the iframe
return elem.firstElementChild;
}
if (elem.classList.contains('mce-shim')) {
// tinymce puts a <span class='mce-shin'> after the iframe (since v5, I think)
const prevSibling = elem.previousSibling;
if (prevSibling && 'tagName' in prevSibling && prevSibling.tagName === 'IFRAME') {
return prevSibling;
}
}
return null;
}