add dart client to packages

2021-01-07 12:09:26 -04:00
parent e7eb0a27f6
commit f28cc91301
160 changed files with 26368 additions and 0 deletions
@@ -0,0 +1,128 @@
+import 'dart:async';
+
+import 'package:flutter/material.dart';
+import 'package:rxdart/rxdart.dart';
+import 'package:stream_chat/stream_chat.dart';
+
+class StreamChannel extends StatefulWidget {
+  StreamChannel({
+    Key key,
+    @required this.child,
+    @required this.channelClient,
+  }) : super(
+          key: key,
+        );
+
+  final Widget child;
+  final Channel channelClient;
+
+  static StreamChannelState of(BuildContext context) {
+    StreamChannelState streamChannelState;
+
+    streamChannelState = context.findAncestorStateOfType<StreamChannelState>();
+
+    if (streamChannelState == null) {
+      throw Exception(
+          'You must have a StreamChannel widget at the top of your widget tree');
+    }
+
+    return streamChannelState;
+  }
+
+  @override
+  StreamChannelState createState() => StreamChannelState();
+}
+
+class StreamChannelState extends State<StreamChannel> {
+  StreamChannelState();
+
+  Channel get channelClient => widget.channelClient;
+
+  Channel get channel => widget.channelClient;
+
+  Stream<ChannelState> get channelStateStream =>
+      widget.channelClient.state.channelStateStream;
+
+  final BehaviorSubject<bool> _queryMessageController = BehaviorSubject();
+
+  Stream<bool> get queryMessage => _queryMessageController.stream;
+
+  void queryMessages() {
+    _queryMessageController.add(true);
+
+    String firstId;
+    if (channel.state.messages.isNotEmpty) {
+      firstId = channel.state.messages.first.id;
+    }
+
+    widget.channelClient
+        .query(
+      messagesPagination: PaginationParams(
+        lessThan: firstId,
+        limit: 100,
+      ),
+    )
+        .then((res) {
+      _queryMessageController.add(false);
+    }).catchError((e, stack) {
+      _queryMessageController.addError(e, stack);
+    });
+  }
+
+  Future<void> getReplies(String parentId) async {
+    _queryMessageController.add(true);
+
+    String firstId;
+    if (widget.channelClient.state.threads.containsKey(parentId)) {
+      firstId = widget.channelClient.state.threads[parentId].first.id;
+    }
+
+    return widget.channelClient
+        .getReplies(
+      parentId,
+      PaginationParams(
+        lessThan: firstId,
+        limit: 100,
+      ),
+    )
+        .then((res) {
+      _queryMessageController.add(false);
+    }).catchError((e, stack) {
+      _queryMessageController.addError(e, stack);
+    });
+  }
+
+  @override
+  void dispose() {
+    _queryMessageController.close();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (widget.channelClient == null) {
+      return Center(
+        child: CircularProgressIndicator(),
+      );
+    }
+    return FutureBuilder<bool>(
+      future: widget.channelClient.initialized,
+      initialData: widget.channelClient.state != null,
+      builder: (context, snapshot) {
+        if (!snapshot.hasData) {
+          return Scaffold(
+            body: Center(
+              child: CircularProgressIndicator(),
+            ),
+          );
+        } else if (snapshot.hasError) {
+          return Center(
+            child: Text(snapshot.error),
+          );
+        } else {
+          return widget.child;
+        }
+      },
+    );
+  }
+}