From 218a14d5f6a72eea95453a233d8c53784d2fcf26 Mon Sep 17 00:00:00 2001
From: Jelle van Snik <jellevs@gmail.com>
Date: Sun, 8 Jan 2023 16:23:42 +0100
Subject: [PATCH] fullscreen video

---
 src/components/video/VideoContext.tsx         |  3 +-
 src/components/video/VideoPlayer.tsx          | 14 +++++--
 .../video/controls/FullscreenControl.tsx      | 39 +++++++++----------
 .../video/controls/PauseControl.tsx           | 10 +++--
 src/components/video/hooks/controlVideo.ts    | 17 +++++++-
 src/components/video/hooks/useVideoPlayer.ts  | 29 +++++++++++---
 src/views/TestView.tsx                        | 12 +++---
 7 files changed, 84 insertions(+), 40 deletions(-)

diff --git a/src/components/video/VideoContext.tsx b/src/components/video/VideoContext.tsx
index bc1bedea..bf8d4e95 100644
--- a/src/components/video/VideoContext.tsx
+++ b/src/components/video/VideoContext.tsx
@@ -53,8 +53,9 @@ export const VideoPlayerDispatchContext = createContext<
 export function VideoPlayerContextProvider(props: {
   children: React.ReactNode;
   player: MutableRefObject<HTMLVideoElement | null>;
+  wrapper: MutableRefObject<HTMLDivElement | null>;
 }) {
-  const { playerState } = useVideoPlayer(props.player);
+  const { playerState } = useVideoPlayer(props.player, props.wrapper);
   const [videoData, dispatch] = useReducer<typeof videoPlayerContextReducer>(
     videoPlayerContextReducer,
     initial
diff --git a/src/components/video/VideoPlayer.tsx b/src/components/video/VideoPlayer.tsx
index d1b7f341..1dddbb1f 100644
--- a/src/components/video/VideoPlayer.tsx
+++ b/src/components/video/VideoPlayer.tsx
@@ -9,7 +9,7 @@ const VideoPlayerInternals = forwardRef<HTMLVideoElement>((_, ref) => {
   const video = useContext(VideoPlayerContext);
 
   return (
-    <video controls ref={ref}>
+    <video ref={ref} className="h-full w-full">
       {video.source ? <source src={video.source} type="video/mp4" /> : null}
     </video>
   );
@@ -17,11 +17,17 @@ const VideoPlayerInternals = forwardRef<HTMLVideoElement>((_, ref) => {
 
 export function VideoPlayer(props: VideoPlayerProps) {
   const playerRef = useRef<HTMLVideoElement | null>(null);
+  const playerWrapperRef = useRef<HTMLDivElement | null>(null);
 
   return (
-    <VideoPlayerContextProvider player={playerRef}>
-      <VideoPlayerInternals ref={playerRef} />
-      {props.children}
+    <VideoPlayerContextProvider player={playerRef} wrapper={playerWrapperRef}>
+      <div
+        className="relative aspect-video w-full bg-black"
+        ref={playerWrapperRef}
+      >
+        <VideoPlayerInternals ref={playerRef} />
+        <div className="absolute inset-0">{props.children}</div>
+      </div>
     </VideoPlayerContextProvider>
   );
 }
diff --git a/src/components/video/controls/FullscreenControl.tsx b/src/components/video/controls/FullscreenControl.tsx
index 62c9e9f3..1cd2ce41 100644
--- a/src/components/video/controls/FullscreenControl.tsx
+++ b/src/components/video/controls/FullscreenControl.tsx
@@ -1,27 +1,24 @@
-// import { useCallback, useContext } from "react";
-// import {
-//   VideoPlayerContext,
-//   VideoPlayerDispatchContext,
-// } from "../VideoContext";
+import { useCallback } from "react";
+import { useVideoPlayerState } from "../VideoContext";
 
 export function FullscreenControl() {
-  return <p>Hello world</p>;
-  // const dispatch = useContext(VideoPlayerDispatchContext);
-  // const video = useContext(VideoPlayerContext);
+  const { videoState } = useVideoPlayerState();
 
-  // const handleClick = useCallback(() => {
-  //   dispatch({
-  //     type: "FULLSCREEN",
-  //     do: video.fullscreen ? "EXIT" : "ENTER",
-  //   });
-  // }, [video, dispatch]);
+  const handleClick = useCallback(() => {
+    if (videoState.isFullscreen) videoState.exitFullscreen();
+    else videoState.enterFullscreen();
+  }, [videoState]);
 
-  // let text = "not fullscreen";
-  // if (video.fullscreen) text = "in fullscreen";
+  let text = "not fullscreen";
+  if (videoState.isFullscreen) text = "in fullscreen";
 
-  // return (
-  //   <button type="button" onClick={handleClick}>
-  //     {text}
-  //   </button>
-  // );
+  return (
+    <button
+      className="m-1 rounded bg-denim-100 p-1 text-white hover:opacity-75"
+      type="button"
+      onClick={handleClick}
+    >
+      {text}
+    </button>
+  );
 }
diff --git a/src/components/video/controls/PauseControl.tsx b/src/components/video/controls/PauseControl.tsx
index 3b4c408d..3f19100d 100644
--- a/src/components/video/controls/PauseControl.tsx
+++ b/src/components/video/controls/PauseControl.tsx
@@ -9,11 +9,15 @@ export function PauseControl() {
     else videoState.play();
   }, [videoState]);
 
-  let text = "paused";
-  if (videoState?.isPlaying) text = "playing";
+  let text =
+    videoState.isPlaying || videoState.isSeeking ? "playing" : "paused";
 
   return (
-    <button type="button" onClick={handleClick}>
+    <button
+      className="m-1 rounded bg-denim-100 p-1 text-white hover:opacity-75"
+      type="button"
+      onClick={handleClick}
+    >
       {text}
     </button>
   );
diff --git a/src/components/video/hooks/controlVideo.ts b/src/components/video/hooks/controlVideo.ts
index 4b980526..824a8d42 100644
--- a/src/components/video/hooks/controlVideo.ts
+++ b/src/components/video/hooks/controlVideo.ts
@@ -1,14 +1,21 @@
 export interface PlayerControls {
   play(): void;
   pause(): void;
+  exitFullscreen(): void;
+  enterFullscreen(): void;
 }
 
 export const initialControls: PlayerControls = {
   play: () => null,
   pause: () => null,
+  enterFullscreen: () => null,
+  exitFullscreen: () => null,
 };
 
-export function populateControls(player: HTMLVideoElement): PlayerControls {
+export function populateControls(
+  player: HTMLVideoElement,
+  wrapper: HTMLDivElement
+): PlayerControls {
   return {
     play() {
       player.play();
@@ -16,5 +23,13 @@ export function populateControls(player: HTMLVideoElement): PlayerControls {
     pause() {
       player.pause();
     },
+    enterFullscreen() {
+      if (!document.fullscreenEnabled || document.fullscreenElement) return;
+      wrapper.requestFullscreen();
+    },
+    exitFullscreen() {
+      if (!document.fullscreenElement) return;
+      document.exitFullscreen();
+    },
   };
 }
diff --git a/src/components/video/hooks/useVideoPlayer.ts b/src/components/video/hooks/useVideoPlayer.ts
index 2e513951..029f8cc8 100644
--- a/src/components/video/hooks/useVideoPlayer.ts
+++ b/src/components/video/hooks/useVideoPlayer.ts
@@ -8,11 +8,15 @@ import {
 export type PlayerState = {
   isPlaying: boolean;
   isPaused: boolean;
+  isSeeking: boolean;
+  isFullscreen: boolean;
 } & PlayerControls;
 
-export const initialPlayerState = {
+export const initialPlayerState: PlayerState = {
   isPlaying: false,
   isPaused: true,
+  isFullscreen: false,
+  isSeeking: false,
   ...initialControls,
 };
 
@@ -24,6 +28,8 @@ function readState(player: HTMLVideoElement, update: SetPlayer) {
   };
   state.isPaused = player.paused;
   state.isPlaying = !player.paused;
+  state.isFullscreen = !!document.fullscreenElement;
+  state.isSeeking = player.seeking;
 
   update(state);
 }
@@ -35,19 +41,32 @@ function registerListeners(player: HTMLVideoElement, update: SetPlayer) {
   player.addEventListener("play", () => {
     update((s) => ({ ...s, isPaused: false, isPlaying: true }));
   });
+  player.addEventListener("seeking", () => {
+    update((s) => ({ ...s, isSeeking: true }));
+  });
+  player.addEventListener("seeked", () => {
+    update((s) => ({ ...s, isSeeking: false }));
+  });
+  document.addEventListener("fullscreenchange", () => {
+    update((s) => ({ ...s, isFullscreen: !!document.fullscreenElement }));
+  });
 }
 
-export function useVideoPlayer(ref: MutableRefObject<HTMLVideoElement | null>) {
+export function useVideoPlayer(
+  ref: MutableRefObject<HTMLVideoElement | null>,
+  wrapperRef: MutableRefObject<HTMLDivElement | null>
+) {
   const [state, setState] = useState(initialPlayerState);
 
   useEffect(() => {
     const player = ref.current;
-    if (player) {
+    const wrapper = wrapperRef.current;
+    if (player && wrapper) {
       readState(player, setState);
       registerListeners(player, setState);
-      setState((s) => ({ ...s, ...populateControls(player) }));
+      setState((s) => ({ ...s, ...populateControls(player, wrapper) }));
     }
-  }, [ref]);
+  }, [ref, wrapperRef]);
 
   return {
     playerState: state,
diff --git a/src/views/TestView.tsx b/src/views/TestView.tsx
index 01e0af45..c87eceba 100644
--- a/src/views/TestView.tsx
+++ b/src/views/TestView.tsx
@@ -7,10 +7,12 @@ import { VideoPlayer } from "@/components/video/VideoPlayer";
 
 export function TestView() {
   return (
-    <VideoPlayer>
-      <PauseControl />
-      <FullscreenControl />
-      <SourceControl source="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" />
-    </VideoPlayer>
+    <div className="w-[40rem] max-w-full">
+      <VideoPlayer>
+        <PauseControl />
+        <FullscreenControl />
+        <SourceControl source="http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" />
+      </VideoPlayer>
+    </div>
   );
 }