launcher: fit grid rows in every host and drop the island inset literal

Port 2.0

quickshell/Modals/DLauncherV2/Components/LauncherMetrics.qml

@@ -41,9 +41,8 @@ Singleton {
     readonly property real spotlightWidth: Theme.launcherWidthWide
     readonly property real spotlightTopFraction: 0.33
     readonly property real spotlightInset: Theme.spacingM
-    readonly property real islandBottomInset: 18
-    // The footerless island sheet ends in ResultsList's spacingS plus its bottom inset, not spacingM.
-    readonly property real islandEdgeInset: islandBottomInset + Theme.spacingS - Theme.spacingM
+    // The footerless island sheet adds ResultsList's spacingS below its spacingM margin.
+    readonly property real islandEdgeInset: Theme.spacingS
 
     FontMetrics {
         id: tileLabelMetrics

quickshell/Modals/DLauncherV2/LauncherContent.qml

@@ -675,7 +675,6 @@ FocusScope {
                     focusReturnTarget: searchField
                     keyForwardTargets: [root]
                     anchors.fill: parent
-                    fitGridRows: true
                     resizing: actionPanel.animating
                     controller: root.controller
                     leadingSectionHeaderAtBottom: contentHolder.inverted

quickshell/Modals/DLauncherV2/ResultsList.qml

@@ -34,9 +34,10 @@ Item {
     readonly property int _densityLevel: Theme.densityLevel
     readonly property int pageRows: Math.max(1, Math.floor((height - LauncherMetrics.fadeLength) / (LauncherMetrics.rowHeight + LauncherMetrics.rowGap)))
     property real availableHeight: 0
-    property bool fitGridRows: false
     // Set while the host animates height, so fitted cells settle once instead of every frame
-    property bool resizing: false
+    required property bool resizing
+    // Content-sized hosts follow fittedHeight, so their cells fit the budget rather than the current height
+    readonly property real _fitSpace: availableHeight > 0 ? availableHeight : height
     readonly property real fittedHeight: {
         const rows = _visualModel.rows;
         const starts = _visualModel.heights;
@@ -132,8 +133,8 @@ Item {
                 var cols = root.controller?.getGridColumns(sectionId) ?? root.gridColumns;
                 var cellWidth = Math.floor(root.width / cols);
                 var cellHeight = mode === "tile" ? cellWidth * LauncherMetrics.tileImageRatio : cellWidth + LauncherMetrics.tileLabelHeight;
-                var gridSpace = root.height - sectionBand - LauncherMetrics.fadeLength;
-                if (root.fitGridRows && mode === "grid" && gridSpace > 0) {
+                var gridSpace = root._fitSpace - sectionBand - LauncherMetrics.fadeLength;
+                if (mode === "grid" && gridSpace > 0) {
                     // Never aim below what the icon and label need
                     var target = Math.max(cellHeight * LauncherMetrics.gridDensityScale, Math.min(cellHeight, LauncherMetrics.tileMinHeight));
                     cellHeight = gridSpace / Math.max(1, Math.round(gridSpace / target));
@@ -204,12 +205,12 @@ Item {
 
     onGridColumnsChanged: rebuildTimer.restart()
     onWidthChanged: rebuildTimer.restart()
-    onHeightChanged: _settleHeight()
+    on_FitSpaceChanged: _settleHeight()
     onResizingChanged: _settleHeight()
 
     // Only fitted grid cells depend on height
     function _settleHeight() {
-        if (!fitGridRows || resizing)
+        if (resizing)
             return;
         if (_visualModel.hasGrid)
             rebuildTimer.restart();

quickshell/Modals/DLauncherV2/SpotlightLauncherContent.qml

@@ -440,6 +440,7 @@ FocusScope {
             keyForwardTargets: [searchKeyHandler]
             readonly property real bottomInset: Theme.spacingS
             availableHeight: Math.max(0, root._maxResultsH - root._resultsTopGap - bottomInset)
+            resizing: actionPanel.animating
             anchors.fill: parent
             anchors.topMargin: root._resultsTopGap
             controller: root.controller

quickshell/Modules/DIsland/Activities/LauncherExpanded.qml

@@ -3,7 +3,6 @@ pragma ComponentBehavior: Bound
 import QtQuick
 import qs.Common
 import qs.Modals.DLauncherV2
-import qs.Modals.DLauncherV2.Components
 
 FocusScope {
     id: root
@@ -16,7 +15,6 @@ FocusScope {
     property real screenHeight: effectiveScreen?.height ?? 1080
     property real alignedX: 0
     property real alignedY: 0
-    property real bottomInset: LauncherMetrics.islandBottomInset
 
     clip: true
 
@@ -69,17 +67,14 @@ FocusScope {
         id: launcherContent
 
         anchors.fill: parent
-        anchors.leftMargin: Theme.spacingM
-        anchors.rightMargin: Theme.spacingM
-        anchors.topMargin: Theme.spacingM
-        anchors.bottomMargin: root.bottomInset
+        anchors.margins: Theme.spacingM
         parentModal: hostContract
         resultsInset: 0
         controllerOverride: root.launcherController
         transientSurfaceTracker: root.transientSurfaceTracker
         showResultsWithoutQuery: true
         resizeAnimated: false
-        maxResultsHeight: Math.max(120, root.controller.launcherExpandedTarget.height - Theme.spacingM - root.bottomInset - launcherContent.searchAreaHeight - launcherContent.actionPanelHeight)
+        maxResultsHeight: Math.max(120, root.controller.launcherExpandedTarget.height - Theme.spacingM * 2 - launcherContent.searchAreaHeight - launcherContent.actionPanelHeight)
     }
 
     onActiveFocusChanged: root.controller.launcherInputFocused = activeFocus