Initial commit

lib/components/message.dart

@@ -0,0 +1,103 @@
+import 'dart:async';
+
+import 'package:fluent_ui/fluent_ui.dart';
+
+void showToast(BuildContext context, {required String message, IconData? icon}) {
+  var newEntry = OverlayEntry(
+      builder: (context) => ToastOverlay(message: message, icon: icon));
+
+  OverlayWidget.of(context)?.addOverlay(newEntry);
+
+  Timer(const Duration(seconds: 2), () => OverlayWidget.of(context)?.remove(newEntry));
+}
+
+class ToastOverlay extends StatelessWidget {
+  const ToastOverlay({required this.message, this.icon, super.key});
+
+  final String message;
+
+  final IconData? icon;
+
+  @override
+  Widget build(BuildContext context) {
+    return Positioned(
+      bottom: 24 + MediaQuery.of(context).viewInsets.bottom,
+      left: 0,
+      right: 0,
+      child: Align(
+        alignment: Alignment.bottomCenter,
+        child: PhysicalModel(
+          color: Colors.white,
+          borderRadius: BorderRadius.circular(4),
+          elevation: 1,
+          child: Container(
+            padding: const EdgeInsets.symmetric(vertical: 6, horizontal: 16),
+            child: Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                if (icon != null) Icon(icon),
+                if (icon != null)
+                  const SizedBox(
+                    width: 8,
+                  ),
+                Text(
+                  message,
+                  style: const TextStyle(
+                      fontSize: 16, fontWeight: FontWeight.w500),
+                  maxLines: 3,
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+class OverlayWidget extends StatefulWidget {
+  const OverlayWidget(this.child, {super.key});
+
+  final Widget child;
+
+  static OverlayWidgetState? of(BuildContext context) {
+    return LookupBoundary.findAncestorStateOfType<OverlayWidgetState>(context);
+  }
+
+  @override
+  State<OverlayWidget> createState() => OverlayWidgetState();
+}
+
+class OverlayWidgetState extends State<OverlayWidget> {
+  var overlayKey = GlobalKey<OverlayState>();
+
+  var entries = <OverlayEntry>[];
+
+  void addOverlay(OverlayEntry entry) {
+    if (overlayKey.currentState != null) {
+      overlayKey.currentState!.insert(entry);
+      entries.add(entry);
+    }
+  }
+
+  void remove(OverlayEntry entry) {
+    if (entries.remove(entry)) {
+      entry.remove();
+    }
+  }
+
+  void removeAll() {
+    for (var entry in entries) {
+      entry.remove();
+    }
+    entries.clear();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Overlay(
+      key: overlayKey,
+      initialEntries: [OverlayEntry(builder: (context) => widget.child)],
+    );
+  }
+}