visual nesting indicator for quick tab switcher

apps/weblibre/lib/features/user/data/models/general_settings.dart

@@ -40,6 +40,13 @@ const minUiScaleFactor = 0.5;
 const maxUiScaleFactor = 1.5;
 const uiScaleFactorStep = 0.05;
 
+/// Max number of inline chevron glyphs shown on a quick tab switcher chip
+/// before the depth indicator collapses into a single icon + count badge.
+/// A value of 0 hides the hierarchy indicator entirely.
+const defaultQuickTabSwitcherHierarchyGlyphs = 2;
+const minQuickTabSwitcherHierarchyGlyphs = 0;
+const maxQuickTabSwitcherHierarchyGlyphs = 4;
+
 enum TabBarSwipeAction { switchLastOpened, navigateOrderedTabs }
 
 enum QuickTabSwitcherMode { lastUsedTabs, containerTabs }
@@ -106,6 +113,7 @@ class GeneralSettings with FastEquatable {
   final bool allowClipboardAccess;
   final bool tabListShowFavicons;
   final bool quickTabSwitcherShowTitles;
+  final int quickTabSwitcherHierarchyGlyphs;
   final bool quickTabSwitcherShowHistorySuggestions;
   final String syncServerOverride;
   final String syncTokenServerOverride;
@@ -173,6 +181,7 @@ class GeneralSettings with FastEquatable {
     required this.allowClipboardAccess,
     required this.tabListShowFavicons,
     required this.quickTabSwitcherShowTitles,
+    required this.quickTabSwitcherHierarchyGlyphs,
     required this.quickTabSwitcherShowHistorySuggestions,
     required this.syncServerOverride,
     required this.syncTokenServerOverride,
@@ -232,6 +241,7 @@ class GeneralSettings with FastEquatable {
     bool? allowClipboardAccess,
     bool? tabListShowFavicons,
     bool? quickTabSwitcherShowTitles,
+    int? quickTabSwitcherHierarchyGlyphs,
     bool? quickTabSwitcherShowHistorySuggestions,
     String? syncServerOverride,
     String? syncTokenServerOverride,
@@ -293,6 +303,9 @@ class GeneralSettings with FastEquatable {
        allowClipboardAccess = allowClipboardAccess ?? true,
        tabListShowFavicons = tabListShowFavicons ?? false,
        quickTabSwitcherShowTitles = quickTabSwitcherShowTitles ?? true,
+       quickTabSwitcherHierarchyGlyphs =
+           quickTabSwitcherHierarchyGlyphs ??
+           defaultQuickTabSwitcherHierarchyGlyphs,
        quickTabSwitcherShowHistorySuggestions =
            quickTabSwitcherShowHistorySuggestions ?? true,
        syncServerOverride = syncServerOverride ?? '',
@@ -407,6 +420,7 @@ class GeneralSettings with FastEquatable {
     allowClipboardAccess,
     tabListShowFavicons,
     quickTabSwitcherShowTitles,
+    quickTabSwitcherHierarchyGlyphs,
     quickTabSwitcherShowHistorySuggestions,
     syncServerOverride,
     syncTokenServerOverride,

apps/weblibre/lib/features/user/data/models/general_settings.g.dart

@@ -91,6 +91,10 @@ abstract class _$GeneralSettingsCWProxy {
 
   GeneralSettings quickTabSwitcherShowTitles(bool quickTabSwitcherShowTitles);
 
+  GeneralSettings quickTabSwitcherHierarchyGlyphs(
+    int quickTabSwitcherHierarchyGlyphs,
+  );
+
   GeneralSettings quickTabSwitcherShowHistorySuggestions(
     bool quickTabSwitcherShowHistorySuggestions,
   );
@@ -182,6 +186,7 @@ abstract class _$GeneralSettingsCWProxy {
     bool allowClipboardAccess,
     bool tabListShowFavicons,
     bool quickTabSwitcherShowTitles,
+    int quickTabSwitcherHierarchyGlyphs,
     bool quickTabSwitcherShowHistorySuggestions,
     String syncServerOverride,
     String syncTokenServerOverride,
@@ -360,6 +365,11 @@ class _$GeneralSettingsCWProxyImpl implements _$GeneralSettingsCWProxy {
   GeneralSettings quickTabSwitcherShowTitles(bool quickTabSwitcherShowTitles) =>
       call(quickTabSwitcherShowTitles: quickTabSwitcherShowTitles);
 
+  @override
+  GeneralSettings quickTabSwitcherHierarchyGlyphs(
+    int quickTabSwitcherHierarchyGlyphs,
+  ) => call(quickTabSwitcherHierarchyGlyphs: quickTabSwitcherHierarchyGlyphs);
+
   @override
   GeneralSettings quickTabSwitcherShowHistorySuggestions(
     bool quickTabSwitcherShowHistorySuggestions,
@@ -495,6 +505,7 @@ class _$GeneralSettingsCWProxyImpl implements _$GeneralSettingsCWProxy {
     Object? allowClipboardAccess = const $CopyWithPlaceholder(),
     Object? tabListShowFavicons = const $CopyWithPlaceholder(),
     Object? quickTabSwitcherShowTitles = const $CopyWithPlaceholder(),
+    Object? quickTabSwitcherHierarchyGlyphs = const $CopyWithPlaceholder(),
     Object? quickTabSwitcherShowHistorySuggestions =
         const $CopyWithPlaceholder(),
     Object? syncServerOverride = const $CopyWithPlaceholder(),
@@ -723,6 +734,12 @@ class _$GeneralSettingsCWProxyImpl implements _$GeneralSettingsCWProxy {
           ? _value.quickTabSwitcherShowTitles
           // ignore: cast_nullable_to_non_nullable
           : quickTabSwitcherShowTitles as bool,
+      quickTabSwitcherHierarchyGlyphs:
+          quickTabSwitcherHierarchyGlyphs == const $CopyWithPlaceholder() ||
+              quickTabSwitcherHierarchyGlyphs == null
+          ? _value.quickTabSwitcherHierarchyGlyphs
+          // ignore: cast_nullable_to_non_nullable
+          : quickTabSwitcherHierarchyGlyphs as int,
       quickTabSwitcherShowHistorySuggestions:
           quickTabSwitcherShowHistorySuggestions ==
                   const $CopyWithPlaceholder() ||
@@ -943,6 +960,8 @@ GeneralSettings _$GeneralSettingsFromJson(
   allowClipboardAccess: json['allowClipboardAccess'] as bool?,
   tabListShowFavicons: json['tabListShowFavicons'] as bool?,
   quickTabSwitcherShowTitles: json['quickTabSwitcherShowTitles'] as bool?,
+  quickTabSwitcherHierarchyGlyphs:
+      (json['quickTabSwitcherHierarchyGlyphs'] as num?)?.toInt(),
   quickTabSwitcherShowHistorySuggestions:
       json['quickTabSwitcherShowHistorySuggestions'] as bool?,
   syncServerOverride: json['syncServerOverride'] as String?,
@@ -1023,6 +1042,7 @@ Map<String, dynamic> _$GeneralSettingsToJson(
   'allowClipboardAccess': instance.allowClipboardAccess,
   'tabListShowFavicons': instance.tabListShowFavicons,
   'quickTabSwitcherShowTitles': instance.quickTabSwitcherShowTitles,
+  'quickTabSwitcherHierarchyGlyphs': instance.quickTabSwitcherHierarchyGlyphs,
   'quickTabSwitcherShowHistorySuggestions':
       instance.quickTabSwitcherShowHistorySuggestions,
   'syncServerOverride': instance.syncServerOverride,