refactor(mobile): widgets (#9291)

* refactor(mobile): widgets

* update

mobile/lib/widgets/common/immich_thumbnail.dart

@@ -0,0 +1,88 @@
+import 'dart:typed_data';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:immich_mobile/providers/image/immich_local_thumbnail_provider.dart';
+import 'package:immich_mobile/providers/image/immich_remote_thumbnail_provider.dart';
+import 'package:immich_mobile/entities/asset.entity.dart';
+import 'package:immich_mobile/shared/ui/hooks/blurhash_hook.dart';
+import 'package:immich_mobile/widgets/common/immich_image.dart';
+import 'package:immich_mobile/widgets/common/thumbhash_placeholder.dart';
+import 'package:octo_image/octo_image.dart';
+
+class ImmichThumbnail extends HookWidget {
+  const ImmichThumbnail({
+    this.asset,
+    this.width = 250,
+    this.height = 250,
+    this.fit = BoxFit.cover,
+    super.key,
+  });
+
+  final Asset? asset;
+  final double width;
+  final double height;
+  final BoxFit fit;
+
+  /// Helper function to return the image provider for the asset thumbnail
+  /// either by using the asset ID or the asset itself
+  /// [asset] is the Asset to request, or else use [assetId] to get a remote
+  /// image provider
+  static ImageProvider imageProvider({
+    Asset? asset,
+    String? assetId,
+    int thumbnailSize = 256,
+  }) {
+    if (asset == null && assetId == null) {
+      throw Exception('Must supply either asset or assetId');
+    }
+
+    if (asset == null) {
+      return ImmichRemoteThumbnailProvider(
+        assetId: assetId!,
+      );
+    }
+
+    if (ImmichImage.useLocal(asset)) {
+      return ImmichLocalThumbnailProvider(
+        asset: asset,
+        height: thumbnailSize,
+        width: thumbnailSize,
+      );
+    } else {
+      return ImmichRemoteThumbnailProvider(
+        assetId: asset.remoteId!,
+        height: thumbnailSize,
+        width: thumbnailSize,
+      );
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    Uint8List? blurhash = useBlurHashRef(asset).value;
+    if (asset == null) {
+      return Container(
+        color: Colors.grey,
+        width: width,
+        height: height,
+        child: const Center(
+          child: Icon(Icons.no_photography),
+        ),
+      );
+    }
+
+    return OctoImage.fromSet(
+      placeholderFadeInDuration: Duration.zero,
+      fadeInDuration: Duration.zero,
+      fadeOutDuration: const Duration(milliseconds: 100),
+      octoSet: blurHashOrPlaceholder(blurhash),
+      image: ImmichThumbnail.imageProvider(
+        asset: asset,
+      ),
+      width: width,
+      height: height,
+      fit: fit,
+    );
+  }
+}