359 lines
12 KiB
Dart
359 lines
12 KiB
Dart
import 'package:cached_network_image/cached_network_image.dart';
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import 'package:flutter/material.dart';
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import 'package:shimmer/shimmer.dart';
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import 'package:stream_chat_flutter/src/attachment/attachment_widget.dart';
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import 'package:stream_chat_flutter/stream_chat_flutter.dart';
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import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
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/// Widget for showing a GIF attachment
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class GiphyAttachment extends AttachmentWidget {
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/// Constructor for creating a [GiphyAttachment] widget
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const GiphyAttachment({
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Key? key,
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required Message message,
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required Attachment attachment,
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Size? size,
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this.onShowMessage,
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this.onReturnAction,
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this.onAttachmentTap,
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}) : super(
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key: key,
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message: message,
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attachment: attachment,
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size: size,
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);
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/// Callback when show message is tapped
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final ShowMessageCallback? onShowMessage;
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/// Callback when attachment is returned to from other screens
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final ValueChanged<ReturnActionType>? onReturnAction;
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/// Callback when attachment is tapped
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final VoidCallback? onAttachmentTap;
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@override
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Widget build(BuildContext context) {
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final imageUrl =
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attachment.thumbUrl ?? attachment.imageUrl ?? attachment.assetUrl;
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if (imageUrl == null) {
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return const AttachmentError();
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}
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if (attachment.actions.isNotEmpty) {
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return _buildSendingAttachment(context, imageUrl);
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}
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return _buildSentAttachment(context, imageUrl);
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}
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Widget _buildSendingAttachment(BuildContext context, String imageUrl) {
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final streamChannel = StreamChannel.of(context);
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return Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Card(
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color: StreamChatTheme.of(context).colorTheme.white,
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elevation: 2,
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clipBehavior: Clip.hardEdge,
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shape: const RoundedRectangleBorder(
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borderRadius: BorderRadius.only(
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topRight: Radius.circular(16),
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topLeft: Radius.circular(16),
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bottomLeft: Radius.circular(16),
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),
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),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: <Widget>[
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Padding(
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padding: const EdgeInsets.all(8),
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child: Row(
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children: [
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StreamSvgIcon.giphyIcon(),
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const SizedBox(width: 8),
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const Text(
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'Giphy',
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style: TextStyle(fontWeight: FontWeight.bold),
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),
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const SizedBox(width: 8),
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if (attachment.title != null)
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Flexible(
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child: Text(
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attachment.title!,
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style: TextStyle(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.5),
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),
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overflow: TextOverflow.ellipsis,
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maxLines: 1,
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),
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),
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],
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),
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),
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Padding(
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padding: const EdgeInsets.all(2),
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child: GestureDetector(
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onTap: () => onAttachmentTap ?? _onImageTap(context),
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child: CachedNetworkImage(
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height: size?.height,
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width: size?.width,
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placeholder: (_, __) => SizedBox(
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width: size?.width,
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height: size?.height,
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child: const Center(
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child: CircularProgressIndicator(),
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),
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),
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imageUrl: imageUrl,
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errorWidget: (context, url, error) =>
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AttachmentError(size: size),
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fit: BoxFit.cover,
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),
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),
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),
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Container(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.2),
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width: double.infinity,
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height: 0.5,
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),
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Row(
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children: [
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Expanded(
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child: SizedBox(
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height: 50,
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child: TextButton(
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onPressed: () {
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streamChannel.channel.sendAction(message, {
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'image_action': 'cancel',
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});
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},
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child: Text(
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'Cancel',
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style: StreamChatTheme.of(context)
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.textTheme
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.bodyBold
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.copyWith(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.5),
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),
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),
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),
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),
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),
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Container(
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width: 0.5,
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.2),
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height: 50,
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),
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Expanded(
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child: SizedBox(
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height: 50,
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child: TextButton(
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onPressed: () {
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streamChannel.channel.sendAction(message, {
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'image_action': 'shuffle',
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});
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},
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child: Text(
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'Shuffle',
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style: StreamChatTheme.of(context)
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.textTheme
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.bodyBold
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.copyWith(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.5),
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),
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maxLines: 1,
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),
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),
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),
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),
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Container(
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width: 0.5,
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.2),
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height: 50,
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),
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Expanded(
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child: SizedBox(
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height: 50,
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child: TextButton(
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onPressed: () {
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streamChannel.channel.sendAction(message, {
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'image_action': 'send',
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});
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},
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child: Text(
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'Send',
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style: TextStyle(
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color: StreamChatTheme.of(context)
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.colorTheme
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.accentBlue,
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fontWeight: FontWeight.bold,
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),
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),
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),
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),
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),
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],
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),
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],
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),
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),
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const SizedBox(height: 4),
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Align(
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alignment: Alignment.centerRight,
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
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child: Row(
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mainAxisSize: MainAxisSize.min,
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children: [
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StreamSvgIcon.eye(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.5),
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size: 16,
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),
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const SizedBox(
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width: 8,
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),
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Text(
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'Only visible to you',
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style: StreamChatTheme.of(context)
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.textTheme
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.footnote
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.copyWith(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(0.5)),
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),
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],
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),
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),
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),
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],
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);
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}
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void _onImageTap(BuildContext context) async {
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final res = await Navigator.push(
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context,
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MaterialPageRoute(
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builder: (_) {
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final channel = StreamChannel.of(context).channel;
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return StreamChannel(
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channel: channel,
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child: FullScreenMedia(
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mediaAttachments: [attachment],
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userName: message.user?.name,
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message: message,
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onShowMessage: onShowMessage,
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),
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);
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},
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),
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);
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if (res != null) onReturnAction?.call(res);
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}
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Widget _buildSentAttachment(BuildContext context, String imageUrl) =>
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SizedBox(
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child: GestureDetector(
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onTap: () async {
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final res =
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await Navigator.push(context, MaterialPageRoute(builder: (_) {
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final channel = StreamChannel.of(context).channel;
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return StreamChannel(
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channel: channel,
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child: FullScreenMedia(
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mediaAttachments: [attachment],
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userName: message.user?.name,
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message: message,
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onShowMessage: onShowMessage,
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),
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);
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}));
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if (res != null) onReturnAction!(res);
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},
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child: Stack(
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children: [
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CachedNetworkImage(
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height: size?.height,
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width: size?.width,
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placeholder: (_, __) {
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final image = Image.asset(
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'images/placeholder.png',
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fit: BoxFit.cover,
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package: 'stream_chat_flutter',
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);
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final colorTheme = StreamChatTheme.of(context).colorTheme;
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return Shimmer.fromColors(
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baseColor: colorTheme.greyGainsboro,
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highlightColor: colorTheme.whiteSmoke,
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child: image,
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);
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},
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imageUrl: imageUrl,
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errorWidget: (context, url, error) =>
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AttachmentError(size: size),
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fit: BoxFit.cover,
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),
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Positioned(
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bottom: 8,
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left: 8,
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child: Material(
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color: StreamChatTheme.of(context)
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.colorTheme
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.black
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.withOpacity(.5),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12),
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),
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child: Padding(
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padding: const EdgeInsets.symmetric(
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horizontal: 8,
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vertical: 4,
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),
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child: Row(
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children: [
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StreamSvgIcon.lightning(
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color: StreamChatTheme.of(context).colorTheme.white,
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size: 16,
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),
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Text(
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'GIPHY',
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style: TextStyle(
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color: StreamChatTheme.of(context).colorTheme.white,
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fontWeight: FontWeight.bold,
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fontSize: 11,
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),
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),
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],
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),
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),
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),
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),
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],
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),
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),
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);
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}
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