Made build portable

dependencies/bitsdojo_window-0.1.5/lib/src/app_window.dart

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+import 'package:bitsdojo_window_platform_interface/bitsdojo_window_platform_interface.dart';
+import 'package:bitsdojo_window_platform_interface/method_channel_bitsdojo_window.dart';
+import 'package:bitsdojo_window_windows/bitsdojo_window_windows.dart';
+import 'package:bitsdojo_window_macos/bitsdojo_window_macos.dart';
+import 'package:bitsdojo_window_linux/bitsdojo_window_linux.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'dart:io' show Platform;
+
+bool _platformInstanceNeedsInit = true;
+
+void initPlatformInstance() {
+  if (!kIsWeb) {
+    if (BitsdojoWindowPlatform.instance is MethodChannelBitsdojoWindow) {
+      if (Platform.isWindows) {
+        BitsdojoWindowPlatform.instance = BitsdojoWindowWindows();
+      } else if (Platform.isMacOS) {
+        BitsdojoWindowPlatform.instance = BitsdojoWindowMacOS();
+      } else if (Platform.isLinux) {
+        BitsdojoWindowPlatform.instance = BitsdojoWindowLinux();
+      }
+    }
+  } else {
+    BitsdojoWindowPlatform.instance = BitsdojoWindowPlatformNotImplemented();
+  }
+}
+
+BitsdojoWindowPlatform get _platform {
+  var needsInit = _platformInstanceNeedsInit;
+  if (needsInit) {
+    initPlatformInstance();
+    _platformInstanceNeedsInit = false;
+  }
+  return BitsdojoWindowPlatform.instance;
+}
+
+void doWhenWindowReady(VoidCallback callback) {
+  _platform.doWhenWindowReady(callback);
+}
+
+DesktopWindow get appWindow {
+  return _platform.appWindow;
+}

dependencies/bitsdojo_window-0.1.5/lib/src/icons/icons.dart

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+import 'dart:math';
+
+import 'package:flutter/widgets.dart';
+
+// Switched to CustomPaint icons by https://github.com/esDotDev
+
+/// Close
+class CloseIcon extends StatelessWidget {
+  final Color color;
+  CloseIcon({Key? key, required this.color}) : super(key: key);
+  @override
+  Widget build(BuildContext context) => Align(
+        alignment: Alignment.topLeft,
+        child: Stack(children: [
+          // Use rotated containers instead of a painter because it renders slightly crisper than a painter for some reason.
+          Transform.rotate(
+              angle: pi * .25,
+              child:
+                  Center(child: Container(width: 14, height: 1, color: color))),
+          Transform.rotate(
+              angle: pi * -.25,
+              child:
+                  Center(child: Container(width: 14, height: 1, color: color))),
+        ]),
+      );
+}
+
+/// Maximize
+class MaximizeIcon extends StatelessWidget {
+  final Color color;
+  MaximizeIcon({Key? key, required this.color}) : super(key: key);
+  @override
+  Widget build(BuildContext context) => _AlignedPaint(_MaximizePainter(color));
+}
+
+class _MaximizePainter extends _IconPainter {
+  _MaximizePainter(Color color) : super(color);
+  @override
+  void paint(Canvas canvas, Size size) {
+    Paint p = getPaint(color);
+    canvas.drawRect(Rect.fromLTRB(0, 0, size.width - 1, size.height - 1), p);
+  }
+}
+
+/// Restore
+class RestoreIcon extends StatelessWidget {
+  final Color color;
+  RestoreIcon({
+    Key? key,
+    required this.color,
+  }) : super(key: key);
+  @override
+  Widget build(BuildContext context) => _AlignedPaint(_RestorePainter(color));
+}
+
+class _RestorePainter extends _IconPainter {
+  _RestorePainter(Color color) : super(color);
+  @override
+  void paint(Canvas canvas, Size size) {
+    Paint p = getPaint(color);
+    canvas.drawRect(Rect.fromLTRB(0, 2, size.width - 2, size.height), p);
+    canvas.drawLine(Offset(2, 2), Offset(2, 0), p);
+    canvas.drawLine(Offset(2, 0), Offset(size.width, 0), p);
+    canvas.drawLine(
+        Offset(size.width, 0), Offset(size.width, size.height - 2), p);
+    canvas.drawLine(Offset(size.width, size.height - 2),
+        Offset(size.width - 2, size.height - 2), p);
+  }
+}
+
+/// Minimize
+class MinimizeIcon extends StatelessWidget {
+  final Color color;
+  MinimizeIcon({Key? key, required this.color}) : super(key: key);
+  @override
+  Widget build(BuildContext context) => _AlignedPaint(_MinimizePainter(color));
+}
+
+class _MinimizePainter extends _IconPainter {
+  _MinimizePainter(Color color) : super(color);
+  @override
+  void paint(Canvas canvas, Size size) {
+    Paint p = getPaint(color);
+    canvas.drawLine(
+        Offset(0, size.height / 2), Offset(size.width, size.height / 2), p);
+  }
+}
+
+/// Helpers
+abstract class _IconPainter extends CustomPainter {
+  _IconPainter(this.color);
+  final Color color;
+
+  @override
+  bool shouldRepaint(covariant CustomPainter oldDelegate) => false;
+}
+
+class _AlignedPaint extends StatelessWidget {
+  const _AlignedPaint(this.painter, {Key? key}) : super(key: key);
+  final CustomPainter painter;
+
+  @override
+  Widget build(BuildContext context) {
+    return Align(
+        alignment: Alignment.center,
+        child: CustomPaint(size: Size(10, 10), painter: painter));
+  }
+}
+
+Paint getPaint(Color color, [bool isAntiAlias = false]) => Paint()
+  ..color = color
+  ..style = PaintingStyle.stroke
+  ..isAntiAlias = isAntiAlias
+  ..strokeWidth = 1;

dependencies/bitsdojo_window-0.1.5/lib/src/widgets/mouse_state_builder.dart

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+import 'package:flutter/widgets.dart';
+
+typedef MouseStateBuilderCB = Widget Function(
+    BuildContext context, MouseState mouseState);
+
+class MouseState {
+  bool isMouseOver = false;
+  bool isMouseDown = false;
+  MouseState();
+  @override
+  String toString() {
+    return "isMouseDown: ${this.isMouseDown} - isMouseOver: ${this.isMouseOver}";
+  }
+}
+
+T? _ambiguate<T>(T? value) => value;
+
+class MouseStateBuilder extends StatefulWidget {
+  final MouseStateBuilderCB builder;
+  final VoidCallback? onPressed;
+  MouseStateBuilder({Key? key, required this.builder, this.onPressed})
+      : super(key: key);
+  @override
+  _MouseStateBuilderState createState() => _MouseStateBuilderState();
+}
+
+class _MouseStateBuilderState extends State<MouseStateBuilder> {
+  late MouseState _mouseState;
+  _MouseStateBuilderState() {
+    _mouseState = MouseState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return MouseRegion(
+        onEnter: (event) {
+          setState(() {
+            _mouseState.isMouseOver = true;
+          });
+        },
+        onExit: (event) {
+          setState(() {
+            _mouseState.isMouseOver = false;
+          });
+        },
+        child: GestureDetector(
+            onTapDown: (_) {
+              setState(() {
+                _mouseState.isMouseDown = true;
+              });
+            },
+            onTapCancel: () {
+              setState(() {
+                _mouseState.isMouseDown = false;
+              });
+            },
+            onTap: () {
+              setState(() {
+                _mouseState.isMouseDown = false;
+                _mouseState.isMouseOver = false;
+              });
+              _ambiguate(WidgetsBinding.instance)!.addPostFrameCallback((_) {
+                if (widget.onPressed != null) {
+                  widget.onPressed!();
+                }
+              });
+            },
+            onTapUp: (_) {},
+            child: widget.builder(context, _mouseState)));
+  }
+}

dependencies/bitsdojo_window-0.1.5/lib/src/widgets/window_border.dart

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+import 'package:bitsdojo_window_windows/bitsdojo_window_windows.dart'
+    show WinDesktopWindow;
+import 'package:flutter/foundation.dart';
+import 'package:flutter/widgets.dart';
+import '../app_window.dart';
+
+class WindowBorder extends StatelessWidget {
+  final Widget child;
+  final Color color;
+  final double? width;
+
+  WindowBorder({Key? key, required this.child, required this.color, this.width})
+      : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    bool isWindowsApp =
+        (!kIsWeb) && (defaultTargetPlatform == TargetPlatform.windows);
+    bool isLinuxApp =
+        (!kIsWeb) && (defaultTargetPlatform == TargetPlatform.linux);
+
+    // Only show border on Windows and Linux
+    if (!(isWindowsApp || isLinuxApp)) {
+      return child;
+    }
+
+    var borderWidth = width ?? 1;
+    var topBorderWidth = width ?? 1;
+
+    if (appWindow is WinDesktopWindow) {
+      appWindow as WinDesktopWindow..setWindowCutOnMaximize(borderWidth.ceil());
+    }
+
+    if (isWindowsApp) {
+      topBorderWidth += 1 / appWindow.scaleFactor;
+    }
+    final topBorderSide = BorderSide(color: this.color, width: topBorderWidth);
+    final borderSide = BorderSide(color: this.color, width: borderWidth);
+
+    return Container(
+        child: child,
+        decoration: BoxDecoration(
+            border: Border(
+                top: topBorderSide,
+                left: borderSide,
+                right: borderSide,
+                bottom: borderSide)));
+  }
+}

dependencies/bitsdojo_window-0.1.5/lib/src/widgets/window_button.dart

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+import 'package:flutter/material.dart';
+
+import './mouse_state_builder.dart';
+import '../icons/icons.dart';
+import '../app_window.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
+import 'dart:io' show Platform;
+
+typedef WindowButtonIconBuilder = Widget Function(
+    WindowButtonContext buttonContext);
+typedef WindowButtonBuilder = Widget Function(
+    WindowButtonContext buttonContext, Widget icon);
+
+class WindowButtonContext {
+  BuildContext context;
+  MouseState mouseState;
+  Color? backgroundColor;
+  Color iconColor;
+  WindowButtonContext(
+      {required this.context,
+      required this.mouseState,
+      this.backgroundColor,
+      required this.iconColor});
+}
+
+class WindowButtonColors {
+  late Color normal;
+  late Color mouseOver;
+  late Color mouseDown;
+  late Color iconNormal;
+  late Color iconMouseOver;
+  late Color iconMouseDown;
+  WindowButtonColors(
+      {Color? normal,
+      Color? mouseOver,
+      Color? mouseDown,
+      Color? iconNormal,
+      Color? iconMouseOver,
+      Color? iconMouseDown}) {
+    this.normal = normal ?? _defaultButtonColors.normal;
+    this.mouseOver = mouseOver ?? _defaultButtonColors.mouseOver;
+    this.mouseDown = mouseDown ?? _defaultButtonColors.mouseDown;
+    this.iconNormal = iconNormal ?? _defaultButtonColors.iconNormal;
+    this.iconMouseOver = iconMouseOver ?? _defaultButtonColors.iconMouseOver;
+    this.iconMouseDown = iconMouseDown ?? _defaultButtonColors.iconMouseDown;
+  }
+}
+
+final _defaultButtonColors = WindowButtonColors(
+    normal: Colors.transparent,
+    iconNormal: Color(0xFF805306),
+    mouseOver: Color(0xFF404040),
+    mouseDown: Color(0xFF202020),
+    iconMouseOver: Color(0xFFFFFFFF),
+    iconMouseDown: Color(0xFFF0F0F0));
+
+class WindowButton extends StatelessWidget {
+  final WindowButtonBuilder? builder;
+  final WindowButtonIconBuilder? iconBuilder;
+  late final WindowButtonColors colors;
+  final bool animate;
+  final EdgeInsets? padding;
+  final VoidCallback? onPressed;
+
+  WindowButton(
+      {Key? key,
+      WindowButtonColors? colors,
+      this.builder,
+      @required this.iconBuilder,
+      this.padding,
+      this.onPressed,
+      this.animate = false})
+      : super(key: key) {
+    this.colors = colors ?? _defaultButtonColors;
+  }
+
+  Color getBackgroundColor(MouseState mouseState) {
+    if (mouseState.isMouseDown) return colors.mouseDown;
+    if (mouseState.isMouseOver) return colors.mouseOver;
+    return colors.normal;
+  }
+
+  Color getIconColor(MouseState mouseState) {
+    if (mouseState.isMouseDown) return colors.iconMouseDown;
+    if (mouseState.isMouseOver) return colors.iconMouseOver;
+    return colors.iconNormal;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (kIsWeb) {
+      return Container();
+    } else {
+      // Don't show button on macOS
+      if (Platform.isMacOS) {
+        return Container();
+      }
+    }
+    final buttonSize = appWindow.titleBarButtonSize;
+    return MouseStateBuilder(
+      builder: (context, mouseState) {
+        WindowButtonContext buttonContext = WindowButtonContext(
+            mouseState: mouseState,
+            context: context,
+            backgroundColor: getBackgroundColor(mouseState),
+            iconColor: getIconColor(mouseState));
+
+        var icon = (this.iconBuilder != null)
+            ? this.iconBuilder!(buttonContext)
+            : Container();
+        double borderSize = appWindow.borderSize;
+        double defaultPadding =
+            (appWindow.titleBarHeight - borderSize) / 3 - (borderSize / 2);
+        // Used when buttonContext.backgroundColor is null, allowing the AnimatedContainer to fade-out smoothly.
+        var fadeOutColor =
+            getBackgroundColor(MouseState()..isMouseOver = true).withOpacity(0);
+        var padding = this.padding ?? EdgeInsets.zero;
+        var animationMs =
+            mouseState.isMouseOver ? (animate ? 100 : 0) : (animate ? 200 : 0);
+        Widget iconWithPadding = Padding(padding: padding, child: icon);
+        iconWithPadding = AnimatedContainer(
+            curve: Curves.easeOut,
+            duration: Duration(milliseconds: animationMs),
+            color: buttonContext.backgroundColor ?? fadeOutColor,
+            child: iconWithPadding);
+        var button = (this.builder != null)
+            ? this.builder!(buttonContext, icon)
+            : iconWithPadding;
+        return SizedBox(
+            width: 48, height: 48, child: button);
+      },
+      onPressed: () {
+        if (this.onPressed != null) this.onPressed!();
+      },
+    );
+  }
+}
+
+class MinimizeWindowButton extends WindowButton {
+  MinimizeWindowButton(
+      {Key? key,
+      WindowButtonColors? colors,
+      VoidCallback? onPressed,
+      bool? animate})
+      : super(
+            key: key,
+            colors: colors,
+            animate: animate ?? false,
+            iconBuilder: (buttonContext) =>
+                MinimizeIcon(color: buttonContext.iconColor),
+            onPressed: onPressed ?? () => appWindow.minimize());
+}
+
+class MaximizeWindowButton extends WindowButton {
+  MaximizeWindowButton(
+      {Key? key,
+      WindowButtonColors? colors,
+      VoidCallback? onPressed,
+      bool? animate})
+      : super(
+            key: key,
+            colors: colors,
+            animate: animate ?? false,
+            iconBuilder: (buttonContext) =>
+                MaximizeIcon(color: buttonContext.iconColor),
+            onPressed: onPressed ?? () => appWindow.maximizeOrRestore());
+}
+
+class RestoreWindowButton extends WindowButton {
+  RestoreWindowButton(
+      {Key? key,
+      WindowButtonColors? colors,
+      VoidCallback? onPressed,
+      bool? animate})
+      : super(
+            key: key,
+            colors: colors,
+            animate: animate ?? false,
+            iconBuilder: (buttonContext) =>
+                RestoreIcon(color: buttonContext.iconColor),
+            onPressed: onPressed ?? () => appWindow.maximizeOrRestore());
+}
+
+final _defaultCloseButtonColors = WindowButtonColors(
+    mouseOver: Color(0xFFD32F2F),
+    mouseDown: Color(0xFFB71C1C),
+    iconNormal: Color(0xFF805306),
+    iconMouseOver: Color(0xFFFFFFFF));
+
+class CloseWindowButton extends WindowButton {
+  CloseWindowButton(
+      {Key? key,
+      WindowButtonColors? colors,
+      VoidCallback? onPressed,
+      bool? animate})
+      : super(
+            key: key,
+            colors: colors ?? _defaultCloseButtonColors,
+            animate: animate ?? false,
+            iconBuilder: (buttonContext) =>
+                CloseIcon(color: buttonContext.iconColor),
+            onPressed: onPressed ?? () => appWindow.close());
+}

dependencies/bitsdojo_window-0.1.5/lib/src/widgets/window_caption.dart

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+import 'package:flutter/widgets.dart';
+import '../app_window.dart';
+import 'package:flutter/foundation.dart' show kIsWeb;
+
+class _MoveWindow extends StatelessWidget {
+  _MoveWindow({Key? key, this.child, this.onDoubleTap}) : super(key: key);
+  final Widget? child;
+  final VoidCallback? onDoubleTap;
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+        behavior: HitTestBehavior.translucent,
+        onPanStart: (details) {
+          appWindow.startDragging();
+        },
+        onDoubleTap: this.onDoubleTap ?? () => appWindow.maximizeOrRestore(),
+        child: this.child ?? Container());
+  }
+}
+
+class MoveWindow extends StatelessWidget {
+  final Widget? child;
+  final VoidCallback? onDoubleTap;
+  MoveWindow({Key? key, this.child, this.onDoubleTap}) : super(key: key);
+  @override
+  Widget build(BuildContext context) {
+    if (child == null) return _MoveWindow(onDoubleTap: this.onDoubleTap);
+    return _MoveWindow(
+      onDoubleTap: this.onDoubleTap,
+      child: Column(
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: [Expanded(child: this.child!)]),
+    );
+  }
+}
+
+class WindowTitleBarBox extends StatelessWidget {
+  final Widget? child;
+  WindowTitleBarBox({Key? key, this.child}) : super(key: key);
+  @override
+  Widget build(BuildContext context) {
+    if (kIsWeb) {
+      return Container();
+    }
+    final titlebarHeight = appWindow.titleBarHeight;
+    return SizedBox(height: titlebarHeight, child: this.child ?? Container());
+  }
+}