Initial commit

Add Space version 2.0.1

lib/widgets/page_callback_shortcuts.dart

@@ -0,0 +1,63 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/services.dart';
+
+import '../utils/custom_navigator.dart';
+
+class PageCallbackShortcuts extends StatefulWidget {
+  /// Constructs a [PageCallbackShortcuts] object.
+  ///
+  /// If [bindings] is not given, a default binding is used where pressing
+  /// "ESC" pops the current route.
+  PageCallbackShortcuts({
+    required this.child,
+    Map<ShortcutActivator, VoidCallback>? bindings,
+    Key? key,
+  })  : bindings = bindings ??
+            <ShortcutActivator, VoidCallback>{
+              LogicalKeySet(LogicalKeyboardKey.escape):
+                  CustomNavigator.getInstance().pop,
+            },
+        super(key: key);
+
+  final Map<ShortcutActivator, VoidCallback> bindings;
+  final Widget child;
+
+  @override
+  State<PageCallbackShortcuts> createState() => _PageCallbackShortcutsState();
+}
+
+class _PageCallbackShortcutsState extends State<PageCallbackShortcuts> {
+  @override
+  Widget build(BuildContext context) {
+    // Use FocusScope instead of Focus as quickfix for the UpsertCard page.
+    // Otherwise there is the bug that if the TextField has focus and one clicks
+    // on e.g. the TabBar the TextField loses focus.
+    //
+    // A clean solution would be to use FocusManager.instance.rootScope.onKey to
+    // directly enable the KeyBindings, but there the bug exists.
+    return FocusScope(
+      autofocus: true,
+      onKey: (node, event) {
+        var result = KeyEventResult.ignored;
+        for (final activator in widget.bindings.keys) {
+          result = _applyKeyBinding(activator, event)
+              ? KeyEventResult.handled
+              : result;
+        }
+
+        return result;
+      },
+      child: widget.child,
+    );
+  }
+
+  bool _applyKeyBinding(ShortcutActivator activator, RawKeyEvent event) {
+    if (activator.accepts(event, RawKeyboard.instance)) {
+      widget.bindings[activator]!.call();
+
+      return true;
+    }
+
+    return false;
+  }
+}