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-rw-r--r--browser/extensions/pictureinpicture/video-wrappers/edx.js33
1 files changed, 33 insertions, 0 deletions
diff --git a/browser/extensions/pictureinpicture/video-wrappers/edx.js b/browser/extensions/pictureinpicture/video-wrappers/edx.js
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+++ b/browser/extensions/pictureinpicture/video-wrappers/edx.js
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+class PictureInPictureVideoWrapper {
+ setCaptionContainerObserver(video, updateCaptionsFunction) {
+ let container = document.querySelector(".video-wrapper");
+
+ if (container) {
+ updateCaptionsFunction("");
+ const callback = function (mutationsList, observer) {
+ let text = container.querySelector(
+ ".closed-captions.is-visible"
+ )?.innerText;
+ updateCaptionsFunction(text);
+ };
+
+ callback([1], null);
+
+ let captionsObserver = new MutationObserver(callback);
+
+ captionsObserver.observe(container, {
+ attributes: true,
+ childList: true,
+ subtree: true,
+ });
+ }
+ }
+}
+
+this.PictureInPictureVideoWrapper = PictureInPictureVideoWrapper;