feat: Add Picture-in-Picture functionality to Player component

src/stories/player/_types.tsx

@@ -4,7 +4,8 @@ export interface PlayerArgs extends HTMLAttributes<HTMLVideoElement> {
   url: string;
   start?: number;
   end?: number;
-  enablePipOnScroll?: boolean;
+  pipMode?: "auto" | (() => boolean) | boolean;
+  onPipChange?: (isPip: boolean) => void;
   onCutHandler?: (time: number) => void;
   isCutting?: boolean;
   bookmarks?: IBookmark[];

src/stories/player/hooks/usePictureInPicture.ts

@@ -0,0 +1,93 @@
+import { useEffect } from "react";
+import { PlayerArgs } from "../_types";
+
+type PictureInPictureHook = (
+  videoRef?: HTMLVideoElement | null,
+  pipMode?: PlayerArgs["pipMode"],
+  onPipChange?: PlayerArgs["onPipChange"]
+) => void;
+
+export const usePictureInPicture: PictureInPictureHook = (videoRef, pipMode, onPipChange) => {
+
+  const getObserver = (videoRef: HTMLVideoElement, isVideoPlaying: () => boolean) => {
+    return new IntersectionObserver(
+      (entries) => {
+        entries.forEach((entry) => {
+          if (!entry.isIntersecting && isVideoPlaying()) {
+            videoRef.requestPictureInPicture();
+          }
+          if (
+            document.pictureInPictureElement &&
+            entry.isIntersecting &&
+            !isVideoPlaying()
+          ) {
+            document.exitPictureInPicture();
+          }
+        });
+      },
+      { threshold: 0.5 }
+    );
+  };
+
+  const handleManualPipMode = (videoRef: HTMLVideoElement, pipMode: boolean) => {
+    if (pipMode) {
+      videoRef.requestPictureInPicture();
+    }
+    if (!pipMode && document.pictureInPictureElement) {
+      document.exitPictureInPicture();
+    }
+  }
+
+  useEffect(() => {
+    // bail out if pipMode is not defined or videoRef is not defined or pip is not supported
+    if (typeof pipMode === "undefined")
+      return;
+    if (!document.pictureInPictureEnabled) {
+      console.warn("Picture-in-Picture is not supported in this browser");
+      return;
+    }
+    if (!videoRef)
+      return;
+
+    // if pipMode is auto, we will enter picture in picture mode when the video is not in view
+    if (pipMode === "auto") {
+      const isVideoPlaying = () =>
+        videoRef.currentTime > 0 &&
+        !videoRef.paused &&
+        !videoRef.ended &&
+        videoRef.readyState > 2;
+
+      const observer = getObserver(videoRef, isVideoPlaying);
+      observer.observe(videoRef);
+
+      return () => {
+        observer.disconnect();
+      };
+    } else if (typeof pipMode === "boolean") {
+      handleManualPipMode(videoRef, pipMode);
+    } else {
+      handleManualPipMode(videoRef, pipMode());
+    }
+  }, [pipMode, videoRef]);
+
+  useEffect(() => {
+    if (!document.pictureInPictureEnabled) {
+      return;
+    }
+    document.addEventListener("enterpictureinpicture", () => {
+      onPipChange?.(true);
+    });
+    document.addEventListener("leavepictureinpicture", () => {
+      onPipChange?.(false);
+    });
+
+    return () => {
+      document.removeEventListener("enterpictureinpicture", () => {
+        onPipChange?.(true);
+      });
+      document.removeEventListener("leavepictureinpicture", () => {
+        onPipChange?.(false);
+      });
+    };
+  }, [onPipChange]);
+}

src/stories/player/index.stories.tsx

@@ -5,12 +5,13 @@ import { Player, PlayerProvider } from ".";
 import { IBookmark, PlayerArgs } from "./_types";
 import { theme } from "../theme";
 import { Tag } from "@zendeskgarden/react-tags";
+import { Button } from "../buttons/button";
 
 const Container = styled.div`
   height: 80vh;
 `;
 
-interface PlayerStoryArgs extends PlayerArgs {}
+interface PlayerStoryArgs extends PlayerArgs { }
 
 const defaultArgs: PlayerStoryArgs = {
   url: "https://s3.eu-west-1.amazonaws.com/appq.static/demo/098648899205a00f8311d929d3073499ef9d664b_1715352138.mp4",
@@ -81,11 +82,65 @@ const TemplateWithCutter: StoryFn<PlayerStoryArgs> = ({
   );
 };
 
+const TemplateWithParagraphs: StoryFn<PlayerStoryArgs> = (args) => (
+  <Container id="player.story.container">
+    <Player {...args} />
+    {Array.from({ length: 10 }).map((_, index) => (
+      <p key={index}>
+        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod
+        tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
+        veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
+        commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
+        velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint
+        occaecat cupidatat non proident, sunt in culpa qui officia deserunt
+        mollit anim id est laborum.
+      </p>
+    ))}
+  </Container>
+);
+
+const TemplateWithButtonForPip: StoryFn<PlayerStoryArgs> = (args) => {
+  const [isPip, setIsPip] = useState(false);
+  const handlePipChange = useCallback((isPipFromPlayer: boolean) => {
+    setIsPip(isPipFromPlayer);
+  }, [setIsPip]);
+  return (
+    <Container id="player.story.container">
+      <Player {...args} pipMode={isPip} onPipChange={handlePipChange} />
+      <Button onClick={() => setIsPip(!isPip)}>
+        {isPip ? "Exit" : "Enter"} Picture in Picture
+      </Button>
+      {Array.from({ length: 10 }).map((_, index) => (
+        <p key={index}>
+          Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod
+          tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
+          veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
+          commodo consequat. Duis aute irure dolor in reprehenderit in voluptate
+          velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint
+          occaecat cupidatat non proident, sunt in culpa qui officia deserunt
+          mollit anim id est laborum.
+        </p>
+      ))}
+    </Container>
+  )
+};
+
 export const Basic = Template.bind({});
 Basic.args = {
   ...defaultArgs,
 };
 
+export const AutoPip = TemplateWithParagraphs.bind({});
+AutoPip.args = {
+  ...defaultArgs,
+  pipMode: "auto",
+};
+
+export const ButtonPip = TemplateWithButtonForPip.bind({});
+ButtonPip.args = {
+  ...defaultArgs
+};
+
 export const Streaming = Template.bind({});
 Streaming.args = {
   ...defaultArgs,

src/stories/player/index.tsx

@@ -12,6 +12,7 @@ import { Controls } from "./parts/controls";
 import { FloatingControls } from "./parts/floatingControls";
 import { VideoSpinner } from "./parts/spinner";
 import { ProgressContextProvider } from "./context/progressContext";
+import { usePictureInPicture } from "./hooks/usePictureInPicture";
 
 /**
  * The Player is a styled media tag with custom controls
@@ -28,7 +29,7 @@ const Player = forwardRef<HTMLVideoElement, PlayerArgs>((props, forwardRef) => (
 const PlayerCore = forwardRef<HTMLVideoElement, PlayerArgs>(
   (props, forwardRef) => {
     const { context, togglePlay, setIsPlaying } = useVideoContext();
-    const { onCutHandler, bookmarks, isCutting } = props;
+    const { onCutHandler, bookmarks, isCutting, pipMode, onPipChange } = props;
     const videoRef = context.player?.ref.current;
     const isLoaded = !!videoRef;
     const containerRef = useRef<HTMLDivElement>(null);
@@ -37,6 +38,8 @@ const PlayerCore = forwardRef<HTMLVideoElement, PlayerArgs>(
       videoRef,
     ]);
 
+    usePictureInPicture(videoRef, pipMode, onPipChange);
+
     useEffect(() => {
       if (videoRef) {
         videoRef.addEventListener("pause", () => {