Files
stream-chat-flutter/packages/stream_chat_flutter/lib/src/attachment/giphy_attachment.dart
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337 lines
12 KiB
Dart

import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:shimmer/shimmer.dart';
import 'package:stream_chat_flutter/src/attachment/attachment_widget.dart';
import 'package:stream_chat_flutter/src/extension.dart';
import 'package:stream_chat_flutter/src/visible_footnote.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
/// Widget for showing a GIF attachment
class GiphyAttachment extends AttachmentWidget {
/// Constructor for creating a [GiphyAttachment] widget
const GiphyAttachment({
Key? key,
required Message message,
required Attachment attachment,
Size? size,
this.onShowMessage,
this.onReturnAction,
this.onAttachmentTap,
}) : super(
key: key,
message: message,
attachment: attachment,
size: size,
);
/// Callback when show message is tapped
final ShowMessageCallback? onShowMessage;
/// Callback when attachment is returned to from other screens
final ValueChanged<ReturnActionType>? onReturnAction;
/// Callback when attachment is tapped
final VoidCallback? onAttachmentTap;
@override
Widget build(BuildContext context) {
final imageUrl =
attachment.thumbUrl ?? attachment.imageUrl ?? attachment.assetUrl;
if (imageUrl == null) {
return const AttachmentError();
}
if (attachment.actions.isNotEmpty) {
return _buildSendingAttachment(context, imageUrl);
}
return _buildSentAttachment(context, imageUrl);
}
Widget _buildSendingAttachment(BuildContext context, String imageUrl) {
final streamChannel = StreamChannel.of(context);
return Column(
mainAxisSize: MainAxisSize.min,
children: [
Card(
color: StreamChatTheme.of(context).colorTheme.barsBg,
elevation: 2,
clipBehavior: Clip.hardEdge,
shape: const RoundedRectangleBorder(
borderRadius: BorderRadius.only(
topRight: Radius.circular(16),
topLeft: Radius.circular(16),
bottomLeft: Radius.circular(16),
),
),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8),
child: Row(
children: [
StreamSvgIcon.giphyIcon(),
const SizedBox(width: 8),
Text(
context.translations.giphyLabel,
style: const TextStyle(fontWeight: FontWeight.bold),
),
const SizedBox(width: 8),
if (attachment.title != null)
Flexible(
child: Text(
attachment.title!,
style: TextStyle(
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.5),
),
overflow: TextOverflow.ellipsis,
maxLines: 1,
),
),
],
),
),
Padding(
padding: const EdgeInsets.all(2),
child: GestureDetector(
onTap: () {
if (onAttachmentTap != null) {
onAttachmentTap?.call();
} else {
_onImageTap(context);
}
},
child: CachedNetworkImage(
height: size?.height,
width: size?.width,
placeholder: (_, __) => SizedBox(
width: size?.width,
height: size?.height,
child: const Center(
child: CircularProgressIndicator(),
),
),
imageUrl: imageUrl,
errorWidget: (context, url, error) =>
AttachmentError(size: size),
fit: BoxFit.cover,
),
),
),
Container(
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.2),
width: double.infinity,
height: 0.5,
),
Row(
children: [
Expanded(
child: SizedBox(
height: 50,
child: TextButton(
onPressed: () {
streamChannel.channel.sendAction(message, {
'image_action': 'cancel',
});
},
child: Text(
context.translations.cancelLabel
.toLowerCase()
.capitalize(),
style: StreamChatTheme.of(context)
.textTheme
.bodyBold
.copyWith(
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.5),
),
),
),
),
),
Container(
width: 0.5,
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.2),
height: 50,
),
Expanded(
child: SizedBox(
height: 50,
child: TextButton(
onPressed: () {
streamChannel.channel.sendAction(message, {
'image_action': 'shuffle',
});
},
child: Text(
context.translations.shuffleLabel,
style: StreamChatTheme.of(context)
.textTheme
.bodyBold
.copyWith(
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.5),
),
maxLines: 1,
),
),
),
),
Container(
width: 0.5,
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.2),
height: 50,
),
Expanded(
child: SizedBox(
height: 50,
child: TextButton(
onPressed: () {
streamChannel.channel.sendAction(message, {
'image_action': 'send',
});
},
child: Text(
context.translations.sendLabel,
style: TextStyle(
color: StreamChatTheme.of(context)
.colorTheme
.accentPrimary,
fontWeight: FontWeight.bold,
),
),
),
),
),
],
),
],
),
),
const SizedBox(height: 4),
const Align(
alignment: Alignment.centerRight,
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
child: VisibleFootnote(),
),
),
],
);
}
void _onImageTap(BuildContext context) async {
final res = await Navigator.push(
context,
MaterialPageRoute(
builder: (_) {
final channel = StreamChannel.of(context).channel;
return StreamChannel(
channel: channel,
child: FullScreenMedia(
mediaAttachments: message.attachments,
startIndex: message.attachments.indexOf(attachment),
userName: message.user?.name,
message: message,
onShowMessage: onShowMessage,
),
);
},
),
);
if (res != null) onReturnAction?.call(res);
}
Widget _buildSentAttachment(BuildContext context, String imageUrl) =>
SizedBox(
child: GestureDetector(
onTap: () {
if (onAttachmentTap != null) {
onAttachmentTap?.call();
} else {
_onImageTap(context);
}
},
child: Stack(
children: [
CachedNetworkImage(
height: size?.height,
width: size?.width,
placeholder: (_, __) {
final image = Image.asset(
'images/placeholder.png',
fit: BoxFit.cover,
package: 'stream_chat_flutter',
);
final colorTheme = StreamChatTheme.of(context).colorTheme;
return Shimmer.fromColors(
baseColor: colorTheme.disabled,
highlightColor: colorTheme.inputBg,
child: image,
);
},
imageUrl: imageUrl,
errorWidget: (context, url, error) =>
AttachmentError(size: size),
fit: BoxFit.cover,
),
Positioned(
bottom: 8,
left: 8,
child: Material(
color: StreamChatTheme.of(context)
.colorTheme
.textHighEmphasis
.withOpacity(0.5),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
child: Padding(
padding: const EdgeInsets.symmetric(
horizontal: 8,
vertical: 4,
),
child: Row(
children: [
StreamSvgIcon.lightning(
color: StreamChatTheme.of(context).colorTheme.barsBg,
size: 16,
),
Text(
context.translations.giphyLabel.toUpperCase(),
style: TextStyle(
color:
StreamChatTheme.of(context).colorTheme.barsBg,
fontWeight: FontWeight.bold,
fontSize: 11,
),
),
],
),
),
),
),
],
),
),
);
}