refactor: performance

lib/widgets/chat_write.dart

@@ -0,0 +1,90 @@
+import 'package:flutter/material.dart';
+import 'package:ndk/ndk.dart';
+import 'package:zap_stream_flutter/main.dart';
+import 'package:zap_stream_flutter/theme.dart';
+import 'package:zap_stream_flutter/utils.dart';
+
+class WriteMessageWidget extends StatefulWidget {
+  final StreamEvent stream;
+
+  const WriteMessageWidget({super.key, required this.stream});
+
+  @override
+  State<StatefulWidget> createState() => __WriteMessageWidget();
+}
+
+class __WriteMessageWidget extends State<WriteMessageWidget> {
+  late final TextEditingController _controller;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = TextEditingController();
+  }
+
+  Future<void> _sendMessage() async {
+    final login = ndk.accounts.getLoggedAccount();
+    if (login == null) return;
+
+    final chatMsg = Nip01Event(
+      pubKey: login.pubkey,
+      kind: 1311,
+      content: _controller.text,
+      tags: [
+        ["a", widget.stream.aTag],
+      ],
+    );
+    _controller.text = "";
+    final res = ndk.broadcast.broadcast(nostrEvent: chatMsg);
+    await res.broadcastDoneFuture;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final canSign = ndk.accounts.canSign;
+    final isLogin = ndk.accounts.isLoggedIn;
+
+    return Container(
+      margin: EdgeInsets.fromLTRB(4, 8, 4, 0),
+      padding: EdgeInsets.symmetric(horizontal: 8),
+      decoration: BoxDecoration(color: LAYER_2, borderRadius: DEFAULT_BR),
+      child:
+          canSign
+              ? Row(
+                children: [
+                  Expanded(
+                    child: TextField(
+                      controller: _controller,
+                      onSubmitted: (_) => _sendMessage(),
+                      decoration: InputDecoration(
+                        labelText: "Write message",
+                        contentPadding: EdgeInsets.symmetric(vertical: 4),
+                        labelStyle: TextStyle(color: LAYER_4, fontSize: 14),
+                        border: InputBorder.none,
+                      ),
+                    ),
+                  ),
+                  //IconButton(onPressed: () {}, icon: Icon(Icons.mood)),
+                  IconButton(
+                    onPressed: () {
+                      _sendMessage();
+                    },
+                    icon: Icon(Icons.send),
+                  ),
+                ],
+              )
+              : Container(
+                padding: EdgeInsets.symmetric(vertical: 12),
+                child: Row(
+                  children: [
+                    Text(
+                      isLogin
+                          ? "Can't write messages with npub login"
+                          : "Please login to send messages",
+                    ),
+                  ],
+                ),
+              ),
+    );
+  }
+}