Files
stream-chat-flutter/lib/src/image_attachment.dart
T
2021-01-04 16:00:20 +05:30

119 lines
3.7 KiB
Dart

import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import '../stream_chat_flutter.dart';
import 'attachment_error.dart';
import 'attachment_title.dart';
import 'full_screen_media.dart';
import 'utils.dart';
class ImageAttachment extends StatelessWidget {
final Attachment attachment;
final Message message;
final MessageTheme messageTheme;
final Size size;
final bool showTitle;
final ShowMessageCallback onShowMessage;
const ImageAttachment({
Key key,
@required this.attachment,
@required this.message,
@required this.size,
this.messageTheme,
this.showTitle = true,
this.onShowMessage,
}) : super(key: key);
@override
Widget build(BuildContext context) {
if (attachment.thumbUrl == null &&
attachment.imageUrl == null &&
attachment.assetUrl == null) {
return AttachmentError(
attachment: attachment,
);
}
return ConstrainedBox(
constraints: BoxConstraints.loose(size),
child: Stack(
children: <Widget>[
Column(
children: <Widget>[
Expanded(
child: GestureDetector(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (_) {
final channel = StreamChannel.of(context).channel;
return StreamChannel(
channel: channel,
child: FullScreenMedia(
mediaAttachments: [
attachment,
],
userName: message.user.name,
sentAt: message.createdAt,
message: message,
onShowMessage: onShowMessage,
),
);
},
),
);
},
child: CachedNetworkImage(
height: size?.height,
width: size?.width,
placeholder: (_, __) {
return Container(
width: size?.width,
height: size?.height,
child: Center(
child: CircularProgressIndicator(),
),
);
},
imageUrl: attachment.thumbUrl ??
attachment.imageUrl ??
attachment.assetUrl,
errorWidget: (context, url, error) => AttachmentError(
attachment: attachment,
size: size,
),
fit: BoxFit.cover,
),
),
),
if (showTitle && attachment.title != null)
Material(
color: messageTheme.messageBackgroundColor,
child: AttachmentTitle(
messageTheme: messageTheme,
attachment: attachment,
),
),
],
),
if (showTitle &&
(attachment.titleLink != null || attachment.ogScrapeUrl != null))
Positioned.fill(
child: Material(
color: Colors.transparent,
child: InkWell(
onTap: () => launchURL(
context,
attachment.titleLink ?? attachment.ogScrapeUrl,
),
),
),
),
],
),
);
}
}