feat(bar-scroll-actions): implement Niri content scrolling for mouse wheel action

Assets/settings-default.json

@@ -68,7 +68,6 @@
         }
       ]
     },
-    "enableWorkspaceScroll": false,
     "mouseWheelAction": "none",
     "screenOverrides": []
   },

Commons/Settings.qml

@@ -252,7 +252,6 @@ Singleton {
           }
         ]
       }
-      property bool enableWorkspaceScroll: false
       property string mouseWheelAction: "none"
       // Per-screen overrides for position and widgets
       // Format: [{ "name": "HDMI-1", "position": "left" }, { "name": "DP-1", "position": "bottom", "widgets": {...} }]

Modules/Bar/Bar.qml

@@ -185,9 +185,7 @@ Item {
         property int barWheelAccumulatedDelta: 0
         property bool barWheelCooldown: false
         readonly property string barWheelAction: {
-          if (Settings.data.bar.mouseWheelAction !== undefined && Settings.data.bar.mouseWheelAction !== "")
-            return Settings.data.bar.mouseWheelAction;
-          return Settings.data.bar.enableWorkspaceScroll ? "workspace" : "none";
+          return Settings.data.bar.mouseWheelAction || "none";
         }
 
         // Position and size the bar content based on orientation
@@ -367,7 +365,7 @@ Item {
           id: barWheelHandler
           target: bar
           acceptedDevices: PointerDevice.Mouse | PointerDevice.TouchPad
-          enabled: bar.barWheelAction === "workspace"
+          enabled: bar.barWheelAction !== "none"
           
           onWheel: function (event) {
             if (bar.barWheelCooldown)
@@ -386,7 +384,11 @@ Item {
               var direction = bar.barWheelAccumulatedDelta > 0 ? -1 : 1;
               if (Settings.data.general.reverseScroll)
                 direction *= -1;
+              if (bar.barWheelAction === "workspace") {
                 bar.switchWorkspaceByOffset(direction);
+              } else if (bar.barWheelAction === "content") {
+                CompositorService.scrollWorkspaceContent(direction);
+              }
               bar.barWheelCooldown = true;
               barWheelDebounce.restart();
               bar.barWheelAccumulatedDelta = 0;

Modules/Panels/Settings/Tabs/Bar/BehaviorSubTab.qml

@@ -10,11 +10,7 @@ ColumnLayout {
   spacing: Style.marginL
   Layout.fillWidth: true
 
-  readonly property string effectiveWheelAction: {
-    if (Settings.data.bar.mouseWheelAction !== undefined && Settings.data.bar.mouseWheelAction !== "")
-      return Settings.data.bar.mouseWheelAction;
-    return Settings.data.bar.enableWorkspaceScroll ? "workspace" : "none";
-  }
+  readonly property string effectiveWheelAction: Settings.data.bar.mouseWheelAction || "none"
 
   NComboBox {
     Layout.fillWidth: true
@@ -41,9 +37,6 @@ ColumnLayout {
     }
     currentKey: root.effectiveWheelAction
     defaultValue: Settings.getDefaultValue("bar.mouseWheelAction")
-    onSelected: key => {
-                  Settings.data.bar.mouseWheelAction = key;
-                  Settings.data.bar.enableWorkspaceScroll = (key === "workspace");
-                }
+    onSelected: key => Settings.data.bar.mouseWheelAction = key
   }
 }

Services/Compositor/CompositorService.qml

@@ -375,6 +375,13 @@ Singleton {
     }
   }
 
+  // Scrollable workspace content (Niri)
+  function scrollWorkspaceContent(direction) {
+    if (backend && backend.scrollWorkspaceContent) {
+      backend.scrollWorkspaceContent(direction);
+    }
+  }
+
   // Get current workspace
   function getCurrentWorkspace() {
     for (var i = 0; i < workspaces.count; i++) {

Services/Compositor/NiriService.qml

@@ -456,6 +456,15 @@ Item {
     }
   }
 
+  function scrollWorkspaceContent(direction) {
+    try {
+      var action = direction < 0 ? "focus-column-left" : "focus-column-right";
+      Quickshell.execDetached(["niri", "msg", "action", action]);
+    } catch (e) {
+      Logger.e("NiriService", "Failed to scroll workspace content:", e);
+    }
+  }
+
   function focusWindow(window) {
     try {
       Quickshell.execDetached(["niri", "msg", "action", "focus-window", "--id", window.id.toString()]);