1 files changed, 71 insertions, 0 deletions
diff --git a/browser/extensions/pictureinpicture/video-wrappers/hulu.js b/browser/extensions/pictureinpicture/video-wrappers/hulu.js
new file mode 100644
index 0000000000..fdaf6d7c18
--- /dev/null
+++ b/browser/extensions/pictureinpicture/video-wrappers/hulu.js
@@ -0,0 +1,71 @@
+/* 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 {
+  constructor(video) {
+    this.player = video.wrappedJSObject.__HuluDashPlayer__;
+  }
+  play() {
+    this.player.play();
+  }
+  pause() {
+    this.player.pause();
+  }
+  isMuted(video) {
+    return video.volume === 0;
+  }
+  setMuted(video, shouldMute) {
+    let muteButton = document.querySelector(".VolumeControl > div");
+
+    if (this.isMuted(video) !== shouldMute) {
+      muteButton.click();
+    }
+  }
+  setCurrentTime(video, position) {
+    this.player.currentTime = position;
+  }
+  setCaptionContainerObserver(video, updateCaptionsFunction) {
+    let container = document.querySelector(".ClosedCaption");
+
+    if (container) {
+      updateCaptionsFunction("");
+      const callback = function (mutationsList, observer) {
+        // This will get the subtitles for both live and regular playback videos
+        // and combine them to display. liveVideoText should be an empty string
+        // when the video is regular playback and vice versa. If both
+        // liveVideoText and regularVideoText are non empty strings, which
+        // doesn't seem to be the case, they will both show.
+        let liveVideoText = Array.from(
+          container.querySelectorAll(
+            "#inband-closed-caption > div > div > div"
+          ),
+          x => x.textContent.trim()
+        )
+          .filter(String)
+          .join("\n");
+        let regularVideoText = container.querySelector(".CaptionBox").innerText;
+
+        updateCaptionsFunction(liveVideoText + regularVideoText);
+      };
+
+      // immediately invoke the callback function to add subtitles to the PiP window
+      callback([1], null);
+
+      let captionsObserver = new MutationObserver(callback);
+
+      captionsObserver.observe(container, {
+        attributes: false,
+        childList: true,
+        subtree: true,
+      });
+    }
+  }
+  getDuration(video) {
+    return this.player.duration;
+  }
+}
+
+this.PictureInPictureVideoWrapper = PictureInPictureVideoWrapper;