lemmur-app-android/lib/widgets/write_comment.dart

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import 'package:flutter/material.dart';
import 'package:flutter_hooks/flutter_hooks.dart';
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import 'package:lemmy_api_client/v2.dart';
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import '../hooks/delayed_loading.dart';
import '../hooks/stores.dart';
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import '../l10n/l10n.dart';
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import 'markdown_mode_icon.dart';
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import 'markdown_text.dart';
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/// Modal for writing a comment to a given post/comment (aka reply)
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/// on submit pops the navigator stack with a [CommentView]
/// or `null` if cancelled
class WriteComment extends HookWidget {
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final Post post;
final Comment comment;
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const WriteComment.toPost(this.post) : comment = null;
const WriteComment.toComment({@required this.comment, @required this.post})
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: assert(comment != null),
assert(post != null);
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@override
Widget build(BuildContext context) {
final controller = useTextEditingController();
final showFancy = useState(false);
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final delayed = useDelayedLoading();
final accStore = useAccountsStore();
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final preview = () {
final body = MarkdownText(
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comment?.content ?? post.body,
instanceHost: post.instanceHost,
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);
if (post != null) {
return Column(
children: [
Text(
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post.name,
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style: const TextStyle(fontSize: 15, fontWeight: FontWeight.w600),
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),
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const SizedBox(height: 4),
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body,
],
);
}
return body;
}();
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handleSubmit() async {
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final api = LemmyApiV2(post.instanceHost);
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final token = accStore.defaultTokenFor(post.instanceHost);
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delayed.start();
try {
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final res = await api.run(CreateComment(
content: controller.text,
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postId: post.id,
parentId: comment?.id,
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auth: token.raw,
));
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Navigator.of(context).pop(res.commentView);
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// ignore: avoid_catches_without_on_clauses
} catch (e) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Failed to post comment')));
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}
delayed.cancel();
}
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return Scaffold(
appBar: AppBar(
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leading: const CloseButton(),
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actions: [
IconButton(
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icon: markdownModeIcon(fancy: showFancy.value),
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onPressed: () => showFancy.value = !showFancy.value,
),
],
),
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body: ListView(
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children: [
ConstrainedBox(
constraints: BoxConstraints(
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maxHeight: MediaQuery.of(context).size.height * .35),
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child: SingleChildScrollView(
padding: const EdgeInsets.all(8),
child: preview,
),
),
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const Divider(),
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IndexedStack(
index: showFancy.value ? 1 : 0,
children: [
TextField(
controller: controller,
autofocus: true,
minLines: 5,
maxLines: null,
),
Padding(
padding: const EdgeInsets.all(16),
child: MarkdownText(
controller.text,
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instanceHost: post.instanceHost,
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),
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)
],
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),
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Row(
mainAxisAlignment: MainAxisAlignment.end,
children: [
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TextButton(
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onPressed: delayed.pending ? () {} : handleSubmit,
child: delayed.loading
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? const CircularProgressIndicator()
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: Text(L10n.of(context).post),
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)
],
),
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],
),
);
}
}