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stream-chat-flutter/packages/stream_chat_flutter/lib/src/attachment/giphy_attachment.dart
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2023-07-28 21:07:02 +05:30

107 lines
3.1 KiB
Dart

import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/src/attachment/thumbnail/giphy_attachment_thumbnail.dart';
import 'package:stream_chat_flutter/src/misc/giphy_chip.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
/// {@template streamGiphyAttachment}
/// Shows a GIF attachment in a [StreamMessageWidget].
/// {@endtemplate}
class StreamGiphyAttachment extends StatelessWidget {
/// {@macro streamGiphyAttachment}
const StreamGiphyAttachment({
super.key,
required this.message,
required this.giphy,
this.type = GiphyInfoType.original,
this.shape,
this.constraints = const BoxConstraints(),
});
/// The [Message] that the giphy is attached to.
final Message message;
/// The [Attachment] object containing the giphy information.
final Attachment giphy;
/// The type of giphy to display.
///
/// Defaults to [GiphyInfoType.fixedHeight].
final GiphyInfoType type;
/// The shape of the attachment.
///
/// Defaults to [RoundedRectangleBorder] with a radius of 14.
final ShapeBorder? shape;
/// The constraints to use when displaying the giphy.
final BoxConstraints constraints;
@override
Widget build(BuildContext context) {
BoxFit? fit;
final giphyInfo = giphy.giphyInfo(type);
Size? giphySize;
if (giphyInfo != null) {
giphySize = Size(giphyInfo.width, giphyInfo.height);
}
// If attachment size is available, we will tighten the constraints max
// size to the attachment size.
var constraints = this.constraints;
if (giphySize != null) {
constraints = constraints.tightenMaxSize(giphySize);
} else {
// For backward compatibility, we will fill the available space if the
// attachment size is not available.
fit = BoxFit.cover;
}
final chatTheme = StreamChatTheme.of(context);
final colorTheme = chatTheme.colorTheme;
final shape = this.shape ??
RoundedRectangleBorder(
side: BorderSide(
color: colorTheme.borders,
strokeAlign: BorderSide.strokeAlignOutside,
),
borderRadius: BorderRadius.circular(14),
);
return Container(
constraints: constraints,
clipBehavior: Clip.hardEdge,
decoration: ShapeDecoration(shape: shape),
child: AspectRatio(
aspectRatio: giphySize?.aspectRatio ?? 1,
child: Stack(
alignment: Alignment.center,
children: [
StreamGiphyAttachmentThumbnail(
type: type,
giphy: giphy,
fit: fit,
width: double.infinity,
height: double.infinity,
),
if (giphy.uploadState.isSuccess)
const Positioned(
bottom: 8,
left: 8,
child: GiphyChip(),
)
else
Padding(
padding: const EdgeInsets.all(8),
child: StreamAttachmentUploadStateBuilder(
message: message,
attachment: giphy,
),
),
],
),
),
);
}
}