initial commit

app/components/chat/composer.js

@@ -0,0 +1,25 @@
+import Component from '@glimmer/component';
+import { tracked } from '@glimmer/tracking';
+import { action } from '@ember/object';
+
+export default class ChatComposer extends Component {
+  @tracked draft = '';
+
+  @action update(event) {
+    this.draft = event.target.value;
+  }
+
+  @action keydown(event) {
+    if (event.key === 'Enter' && !event.shiftKey) {
+      event.preventDefault();
+      this.submit();
+    }
+  }
+
+  @action submit() {
+    const content = this.draft.trim();
+    if (!content || this.args.disabled) return;
+    this.args.onSend(content);
+    this.draft = '';
+  }
+}