chore: restore product scaffold to rollback baseline

apps/chanora_flutter/lib/widgets/input_dialogs.dart

@@ -4,9 +4,6 @@ import 'package:flutter/services.dart';
 import '../l10n/generated/app_localizations.dart';
 import '../src/rust/api.dart' as rust;
 
-const int pttMouseBackButtonBitmask = 0x08;
-const int pttMouseForwardButtonBitmask = 0x10;
-
 /// Translate a [LogicalKeyboardKey] into the platform-neutral label
 /// stored by the PTT binding flow.
 String? pttDisplayLabelForKey(LogicalKeyboardKey k) {
@@ -49,27 +46,6 @@ String? pttDisplayLabelForKey(LogicalKeyboardKey k) {
   return fallback;
 }
 
-String? pttMouseSideButtonPlatformKeyForLogicalKey(LogicalKeyboardKey key) {
-  return switch (key) {
-    LogicalKeyboardKey.browserBack ||
-    LogicalKeyboardKey.goBack => 'mouse-side-button:$pttMouseBackButtonBitmask',
-    LogicalKeyboardKey.browserForward =>
-      'mouse-side-button:$pttMouseForwardButtonBitmask',
-    _ => null,
-  };
-}
-
-String? pttMouseSideButtonPlatformKeyForButtons(int buttons) {
-  if ((buttons & pttMouseBackButtonBitmask) == pttMouseBackButtonBitmask) {
-    return 'mouse-side-button:$pttMouseBackButtonBitmask';
-  }
-  if ((buttons & pttMouseForwardButtonBitmask) ==
-      pttMouseForwardButtonBitmask) {
-    return 'mouse-side-button:$pttMouseForwardButtonBitmask';
-  }
-  return null;
-}
-
 /// Result of a successful PTT binding capture.
 class CapturedBinding {
   const CapturedBinding({required this.inputClass, required this.platformKey});
@@ -205,16 +181,6 @@ class _PttBindingCaptureDialogState extends State<PttBindingCaptureDialog> {
 
   KeyEventResult _onKeyEvent(FocusNode node, KeyEvent event) {
     if (event is! KeyDownEvent) return KeyEventResult.ignored;
-    final mouseSideButton = pttMouseSideButtonPlatformKeyForLogicalKey(
-      event.logicalKey,
-    );
-    if (mouseSideButton != null) {
-      setState(() {
-        _captured = mouseSideButton;
-        _capturedClass = rust.BridgePttInputClass.mouseSideButton;
-      });
-      return KeyEventResult.handled;
-    }
     final label = pttDisplayLabelForKey(event.logicalKey);
     if (label == null) return KeyEventResult.ignored;
     setState(() {
@@ -224,9 +190,9 @@ class _PttBindingCaptureDialogState extends State<PttBindingCaptureDialog> {
     return KeyEventResult.handled;
   }
 
-  void _captureMouseSideButton(String platformKey) {
+  void _captureMouseSideButton(int button) {
     setState(() {
-      _captured = platformKey;
+      _captured = 'mouse-side-button:$button';
       _capturedClass = rust.BridgePttInputClass.mouseSideButton;
     });
   }
@@ -237,57 +203,59 @@ class _PttBindingCaptureDialogState extends State<PttBindingCaptureDialog> {
     final theme = Theme.of(context);
     return AlertDialog(
       title: Text(l10n.pttConfigureTitle),
-      content: SizedBox(
-        width: 360,
-        child: Focus(
-          focusNode: _focusNode,
-          onKeyEvent: _onKeyEvent,
-          autofocus: true,
-          child: Listener(
-            behavior: HitTestBehavior.opaque,
-            onPointerDown: (e) {
-              final platformKey = pttMouseSideButtonPlatformKeyForButtons(
-                e.buttons,
-              );
-              if (platformKey != null) {
-                _captureMouseSideButton(platformKey);
-              }
-            },
-            child: Column(
-              mainAxisSize: MainAxisSize.min,
-              crossAxisAlignment: CrossAxisAlignment.start,
-              children: [
-                Text(
-                  l10n.pttConfigurePrompt,
-                  style: theme.textTheme.bodyMedium,
-                ),
-                const SizedBox(height: 12),
-                Container(
-                  padding: const EdgeInsets.symmetric(
-                    vertical: 12,
-                    horizontal: 16,
+      content: ConstrainedBox(
+        constraints: const BoxConstraints(maxWidth: 360),
+        child: SingleChildScrollView(
+          child: Focus(
+            focusNode: _focusNode,
+            onKeyEvent: _onKeyEvent,
+            autofocus: true,
+            child: Listener(
+              behavior: HitTestBehavior.opaque,
+              onPointerDown: (e) {
+                const int back = 0x08;
+                const int forward = 0x10;
+                if (e.buttons == back || e.buttons == forward) {
+                  _captureMouseSideButton(e.buttons);
+                }
+              },
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: [
+                  Text(
+                    l10n.pttConfigurePrompt,
+                    style: theme.textTheme.bodyMedium,
                   ),
-                  decoration: BoxDecoration(
-                    color: theme.colorScheme.surfaceContainerHighest,
-                    borderRadius: BorderRadius.circular(6),
-                  ),
-                  child: Text(
-                    _captured == null
-                        ? l10n.pttConfigureWaiting
-                        : '${l10n.pttConfigureCaptured}: $_captured',
-                    style: theme.textTheme.bodyMedium?.copyWith(
-                      fontFamily: 'monospace',
+                  const SizedBox(height: 12),
+                  Container(
+                    width: double.infinity,
+                    padding: const EdgeInsets.symmetric(
+                      vertical: 12,
+                      horizontal: 16,
+                    ),
+                    decoration: BoxDecoration(
+                      color: theme.colorScheme.surfaceContainerHighest,
+                      borderRadius: BorderRadius.circular(6),
+                    ),
+                    child: Text(
+                      _captured == null
+                          ? l10n.pttConfigureWaiting
+                          : '${l10n.pttConfigureCaptured}: $_captured',
+                      style: theme.textTheme.bodyMedium?.copyWith(
+                        fontFamily: 'monospace',
+                      ),
                     ),
                   ),
-                ),
-                const SizedBox(height: 12),
-                Text(
-                  l10n.pttConfigurePrivacyNote,
-                  style: theme.textTheme.bodySmall?.copyWith(
-                    color: theme.colorScheme.onSurfaceVariant,
+                  const SizedBox(height: 12),
+                  Text(
+                    l10n.pttConfigurePrivacyNote,
+                    style: theme.textTheme.bodySmall?.copyWith(
+                      color: theme.colorScheme.onSurfaceVariant,
+                    ),
                   ),
-                ),
-              ],
+                ],
+              ),
             ),
           ),
         ),