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 +1,61 @@
+import 'package:flutter/material.dart';
+import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
+
+import 'stream_chat.dart';
+
+/// Widget that builds itself based on the latest snapshot of interaction with
+/// a [Stream] of type [ConnectionStatus].
+///
+/// The widget will use the closest [StreamChatClient.wsConnectionStatusStream] in case no
+/// stream is provided.
+class ConnectionStatusBuilder extends StatelessWidget {
+  /// Creates a new ConnectionStatusBuilder
+  const ConnectionStatusBuilder({
+    Key key,
+    @required this.statusBuilder,
+    this.initialStatus = ConnectionStatus.disconnected,
+    this.connectionStatusStream,
+    this.errorBuilder,
+    this.loadingBuilder,
+  })  : assert(statusBuilder != null),
+        super(key: key);
+
+  /// The connection status that will be used to create the initial snapshot.
+  final ConnectionStatus initialStatus;
+
+  /// The asynchronous computation to which this builder is currently connected.
+  final Stream<ConnectionStatus> connectionStatusStream;
+
+  /// The builder that will be used in case of error
+  final Widget Function(BuildContext context, Object error) errorBuilder;
+
+  /// The builder that will be used in case of loading
+  final WidgetBuilder loadingBuilder;
+
+  /// The builder that will be used in case of data
+  final Widget Function(BuildContext context, ConnectionStatus status)
+      statusBuilder;
+
+  @override
+  Widget build(BuildContext context) {
+    final stream = connectionStatusStream ??
+        StreamChat.of(context).client.wsConnectionStatusStream;
+    return StreamBuilder<ConnectionStatus>(
+      initialData: initialStatus,
+      stream: stream,
+      builder: (context, snapshot) {
+        if (snapshot.hasError) {
+          if (errorBuilder != null) {
+            return errorBuilder(context, snapshot.error);
+          }
+          return Offstage();
+        }
+        if (!snapshot.hasData) {
+          if (loadingBuilder != null) return loadingBuilder(context);
+          return Offstage();
+        }
+        return statusBuilder(context, snapshot.data);
+      },
+    );
+  }
+}