See a preview when using the timeline to export footage (#14321)

* custom hook and generic video player component

* add export preview dialog

* export preview dialog when using timeline export

* refactor search detail dialog to use new generic video player component

* clean up

web/src/components/player/GenericVideoPlayer.tsx

@@ -0,0 +1,52 @@
+import React, { useState, useRef } from "react";
+import { useVideoDimensions } from "@/hooks/use-video-dimensions";
+import HlsVideoPlayer from "./HlsVideoPlayer";
+import ActivityIndicator from "../indicators/activity-indicator";
+
+type GenericVideoPlayerProps = {
+  source: string;
+  onPlaying?: () => void;
+  children?: React.ReactNode;
+};
+
+export function GenericVideoPlayer({
+  source,
+  onPlaying,
+  children,
+}: GenericVideoPlayerProps) {
+  const [isLoading, setIsLoading] = useState(true);
+  const videoRef = useRef<HTMLVideoElement | null>(null);
+  const containerRef = useRef<HTMLDivElement | null>(null);
+  const { videoDimensions, setVideoResolution } =
+    useVideoDimensions(containerRef);
+
+  return (
+    <div ref={containerRef} className="relative flex h-full w-full flex-col">
+      <div className="relative flex flex-grow items-center justify-center">
+        {isLoading && (
+          <ActivityIndicator className="absolute left-1/2 top-1/2 z-10 -translate-x-1/2 -translate-y-1/2" />
+        )}
+        <div
+          className="relative flex items-center justify-center"
+          style={videoDimensions}
+        >
+          <HlsVideoPlayer
+            videoRef={videoRef}
+            currentSource={source}
+            hotKeys
+            visible
+            frigateControls={false}
+            fullscreen={false}
+            supportsFullscreen={false}
+            onPlaying={() => {
+              setIsLoading(false);
+              onPlaying?.();
+            }}
+            setFullResolution={setVideoResolution}
+          />
+          {!isLoading && children}
+        </div>
+      </div>
+    </div>
+  );
+}