feat: работа с текстом

2026-07-26 12:32:38 +07:00
parent 6c084860b1
commit 310e1fdb4a
34 changed files with 2309 additions and 227 deletions
@@ -0,0 +1,163 @@
+import 'package:flutter/gestures.dart';
+import 'package:flutter/material.dart';
+
+import '../../../../backend/modules/messages.dart';
+import '../../../../models/attachment.dart';
+
+class _ControlSegment {
+  final String text;
+  final int? userId;
+
+  const _ControlSegment(this.text, [this.userId]);
+}
+
+class _ControlText {
+  final List<_ControlSegment> segments;
+  final int? tapUserId;
+
+  const _ControlText(this.segments, this.tapUserId);
+}
+
+class ControlBubble extends StatefulWidget {
+  final CachedMessage message;
+  final ColorScheme cs;
+  final void Function(int userId)? onUserTap;
+
+  const ControlBubble({
+    super.key,
+    required this.message,
+    required this.cs,
+    this.onUserTap,
+  });
+
+  @override
+  State<ControlBubble> createState() => _ControlBubbleState();
+}
+
+class _ControlBubbleState extends State<ControlBubble> {
+  final Map<int, TapGestureRecognizer> _recognizers = {};
+
+  @override
+  void dispose() {
+    for (final recognizer in _recognizers.values) {
+      recognizer.dispose();
+    }
+    super.dispose();
+  }
+
+  TapGestureRecognizer _recognizerFor(int userId) => _recognizers.putIfAbsent(
+    userId,
+    () => TapGestureRecognizer()..onTap = () => widget.onUserTap?.call(userId),
+  );
+
+  String _nameOf(int userId) => ContactCache.get(userId) ?? 'Пользователь';
+
+  int? _mentionedUser(ControlAttachment control) {
+    final direct = control.userId;
+    if (direct != null && direct != 0) return direct;
+    final ids = control.userIds;
+    if (ids != null && ids.length == 1) return ids.first;
+    return null;
+  }
+
+  _ControlText _resolveText(ControlAttachment control) {
+    final senderId = widget.message.senderId;
+    final sender = _ControlSegment(_nameOf(senderId), senderId);
+
+    switch (control.event) {
+      case 'new':
+        return _ControlText([
+          sender,
+          const _ControlSegment(' создал(а) чат'),
+        ], senderId);
+      case 'add':
+        final ids = control.userIds ?? const <int>[];
+        final segments = <_ControlSegment>[
+          sender,
+          const _ControlSegment(' добавил(а) '),
+        ];
+        for (var i = 0; i < ids.length; i++) {
+          if (i > 0) segments.add(const _ControlSegment(', '));
+          segments.add(_ControlSegment(_nameOf(ids[i]), ids[i]));
+        }
+        return _ControlText(segments, ids.length == 1 ? ids.first : null);
+      case 'leave':
+        return _ControlText([
+          sender,
+          const _ControlSegment(' покинул(а) чат'),
+        ], senderId);
+      case 'joinByLink':
+        return _ControlText([
+          sender,
+          const _ControlSegment(' присоединился(-ась) к чату'),
+        ], senderId);
+      case 'pin':
+        return _ControlText([
+          sender,
+          const _ControlSegment(' закрепил(а) сообщение'),
+        ], senderId);
+      default:
+        return _ControlText([
+          _ControlSegment(control.title ?? ''),
+        ], _mentionedUser(control) ?? senderId);
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final attachments = widget.message.attachments;
+    if (attachments == null || attachments.isEmpty) {
+      return const SizedBox.shrink();
+    }
+
+    final control = attachments.first;
+    if (control is! ControlAttachment) return const SizedBox.shrink();
+
+    final resolved = _resolveText(control);
+    if (resolved.segments.every((s) => s.text.isEmpty)) {
+      return const SizedBox.shrink();
+    }
+
+    final cs = widget.cs;
+    final interactive = widget.onUserTap != null;
+
+    final bubble = Container(
+      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 4),
+      decoration: BoxDecoration(
+        color: cs.surfaceContainerHighest.withValues(alpha: 0.6),
+        borderRadius: BorderRadius.circular(12),
+      ),
+      child: Text.rich(
+        TextSpan(
+          children: [
+            for (final segment in resolved.segments)
+              TextSpan(
+                text: segment.text,
+                style: interactive && segment.userId != null
+                    ? const TextStyle(fontWeight: FontWeight.w600)
+                    : null,
+                recognizer: interactive && segment.userId != null
+                    ? _recognizerFor(segment.userId!)
+                    : null,
+              ),
+          ],
+        ),
+        style: TextStyle(
+          color: cs.onSurfaceVariant,
+          fontSize: 12,
+          fontStyle: FontStyle.italic,
+        ),
+        textAlign: TextAlign.center,
+      ),
+    );
+
+    final tapUserId = resolved.tapUserId;
+    if (!interactive || tapUserId == null) return bubble;
+
+    return GestureDetector(
+      behavior: HitTestBehavior.opaque,
+      onTap: () => widget.onUserTap!(tapUserId),
+      child: bubble,
+    );
+  }
+}