cc: allow sliders to shrink to 0.5 height

related #3880
port 2.0

(cherry picked from commit 6bd0e24bd4)

quickshell/Modules/ControlCenter/Widgets/CcSliderRow.qml

@@ -17,6 +17,8 @@ Item {
     property real columns: 4
     property real rows: 1
     property bool compact: columns <= 2 && rows === 1
+    property bool small: false
+    readonly property real bodyInset: small ? Math.max(0, (height - CcMetrics.smallRowHeight) / 2) : 0
     property string iconName: ""
     property string iconLabel: ""
     property string iconTooltip: ""
@@ -135,13 +137,13 @@ Item {
                 onSliderValueChanged: newValue => root.sliderValueChanged(newValue)
 
                 Binding on trackHeight {
-                    when: !root.tall
+                    when: !root.tall && !root.small
                     value: CcMetrics.stripTrackHeight
                     restoreMode: Binding.RestoreBinding
                 }
 
                 Binding on handleHeight {
-                    when: !root.tall
+                    when: !root.tall && !root.small
                     value: CcMetrics.stripHandleHeight
                     restoreMode: Binding.RestoreBinding
                 }

quickshell/Modules/ControlCenter/utils/widgets.js

@@ -17,7 +17,7 @@ function isSliderWidget(id) {
 }
 
 function canShrink(id) {
-    return id !== "user" && !isSliderWidget(id);
+    return id !== "user";
 }
 
 function isSmall(widget, rows) {
@@ -25,7 +25,7 @@ function isSmall(widget, rows) {
 }
 
 function canGroup(widget) {
-    return canShrink(widget?.id) && widget?.id !== GROUP_ID;
+    return canShrink(widget?.id) && !isSliderWidget(widget?.id) && widget?.id !== GROUP_ID;
 }
 
 // Members of a group that no longer exists fall back to the grid.
@@ -38,10 +38,12 @@ function inGroup(widget, ids) {
 }
 
 function groupMembers(widgets, groupId) {
-    return widgets.reduce((members, widget, index) => widget?.group === groupId && isShown(widget) ? members.concat([{
+    return widgets.reduce((members, widget, index) => widget?.group === groupId && isShown(widget) ? members.concat([
+            {
                 "index": index,
                 "widget": widget
-            }]) : members, []);
+            }
+        ]) : members, []);
 }
 
 function isRemovable(widget) {