rename package folders

2021-02-01 15:45:58 +01:00
parent 6682ad5e8b
commit 964a428f2e
445 changed files with 1 additions and 343 deletions
@@ -0,0 +1,77 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
+
+import '../stream_chat_flutter.dart';
+
+/// It shows the current [Channel] name using a [Text] widget.
+///
+/// The widget uses a [StreamBuilder] to render the channel information image as soon as it updates.
+class ChannelName extends StatelessWidget {
+  /// Instantiate a new ChannelName
+  const ChannelName({
+    Key key,
+    this.textStyle,
+  }) : super(key: key);
+
+  /// The style of the text displayed
+  final TextStyle textStyle;
+
+  @override
+  Widget build(BuildContext context) {
+    final client = StreamChat.of(context);
+    final channel = StreamChannel.of(context).channel;
+
+    return StreamBuilder<Map<String, dynamic>>(
+      stream: channel.extraDataStream,
+      initialData: channel.extraData,
+      builder: (context, snapshot) {
+        return _buildName(snapshot.data, channel.state.members, client);
+      },
+    );
+  }
+
+  Widget _buildName(
+    Map<String, dynamic> extraData,
+    List<Member> members,
+    StreamChatState client,
+  ) {
+    return LayoutBuilder(
+      builder: (context, constraints) {
+        String title;
+        if (extraData['name'] == null) {
+          final otherMembers =
+              members.where((member) => member.userId != client.user.id);
+          if (otherMembers.isNotEmpty) {
+            final maxWidth = constraints.maxWidth;
+            final maxChars = maxWidth / textStyle.fontSize;
+            var currentChars = 0;
+            final currentMembers = <Member>[];
+            otherMembers.forEach((element) {
+              final newLength = currentChars + element.user.name.length;
+              if (newLength < maxChars) {
+                currentChars = newLength;
+                currentMembers.add(element);
+              }
+            });
+
+            final exceedingMembers =
+                otherMembers.length - currentMembers.length;
+            title =
+                '${currentMembers.map((e) => e.user.name).join(', ')} ${exceedingMembers > 0 ? '+ $exceedingMembers' : ''}';
+          } else {
+            title = 'No title';
+          }
+        } else {
+          title = extraData['name'];
+        }
+
+        return Text(
+          title,
+          style: textStyle,
+          overflow: TextOverflow.ellipsis,
+        );
+      },
+    );
+  }
+}