feat(title_bar): window drag support

lib/src/widgets/title_bar.dart

@@ -2,32 +2,64 @@ import 'package:flutter/material.dart';
 import 'package:platform_ui/platform_ui.dart';
 import 'package:window_manager/window_manager.dart';
 
-class TitleBar extends PlatformAppBar {
-  TitleBar({
-    List<Widget>? actions,
-    super.backgroundColor,
-    super.centerTitle,
-    super.leading,
-    super.leadingWidth,
-    super.title,
-    super.titleSpacing,
-    super.toolbarOpacity,
-    super.toolbarTextStyle,
-    super.titleTextStyle,
-    super.actionsIconTheme,
-    super.automaticallyImplyLeading,
-    super.foregroundColor,
-    super.titleWidth,
-    super.key,
-  }) : super(
-          actions: [
-            ...actions ?? [],
-            const PlatformWindowButtons(),
-          ],
-        );
+class TitleBar extends StatelessWidget with PreferredSizeWidget {
+  final List<Widget>? actions;
+  final Widget? leading;
+  final bool automaticallyImplyLeading;
+  final Widget? title;
+  final Color? backgroundColor;
+  final Color? foregroundColor;
+  final IconThemeData? actionsIconTheme;
+  final bool? centerTitle;
+  final double? titleSpacing;
+  final double toolbarOpacity;
+  final double? leadingWidth;
+  final TextStyle? toolbarTextStyle;
+  final TextStyle? titleTextStyle;
+  final double? titleWidth;
+
+  const TitleBar({
+    this.actions,
+    this.leading,
+    this.automaticallyImplyLeading = true,
+    this.title,
+    this.backgroundColor,
+    this.foregroundColor,
+    this.actionsIconTheme,
+    this.centerTitle,
+    this.titleSpacing,
+    this.toolbarOpacity = 1.0,
+    this.leadingWidth,
+    this.toolbarTextStyle,
+    this.titleWidth,
+    this.titleTextStyle,
+    Key? key,
+  }) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
-    return DragToMoveArea(child: super.build(context));
+    return PlatformAppBar(
+      automaticallyImplyLeading: automaticallyImplyLeading,
+      backgroundColor: backgroundColor,
+      foregroundColor: foregroundColor,
+      centerTitle: centerTitle,
+      actionsIconTheme: actionsIconTheme,
+      leading: leading,
+      leadingWidth: leadingWidth,
+      title: title,
+      titleSpacing: titleSpacing,
+      toolbarOpacity: toolbarOpacity,
+      toolbarTextStyle: toolbarTextStyle,
+      titleTextStyle: titleTextStyle,
+      titleWidth: titleWidth,
+      onDrag: () => windowManager.startDragging(),
+      actions: [
+        ...?actions,
+        const PlatformWindowButtons(),
+      ],
+    );
   }
+
+  @override
+  Size get preferredSize => const Size.fromHeight(kToolbarHeight);
 }

pubspec.yaml

@@ -33,7 +33,7 @@ dependencies:
   platform_ui:
     git:
       url: https://github.com/KRTirtho/platform_ui.git
-      ref: 7eb00aef962f282463bc994ca5a6d31cc78f1fe3
+      ref: 073cefb9c419fcb01cbdfd6ca2f9714eec23c83b
   fluent_ui: ^4.1.2
   macos_ui: ^1.7.5
   libadwaita: ^1.2.5