add attwm support

widgets/Workspaces.qml

@@ -4,59 +4,86 @@ import Quickshell
 import Quickshell.I3
 import Quickshell.Hyprland
 import "../config"
+import "../services"
 
-// Workspace switcher for a single monitor. Works on both Sway/i3 and Hyprland:
-// the compositor is detected once from its instance env var, and the matching
-// Quickshell backend model is used. The two backends expose the same item shape
-// (name / active / focused / urgent / monitor.name / activate()), so a single
-// chip renderer covers both. The `?:` on `model` only evaluates the taken
-// branch, so the unused backend singleton is never instantiated (no stray IPC).
+// Workspace switcher for a single monitor. Three backends, one chip renderer
+// (WorkspaceChip):
+//
+//   * Sway/i3 and Hyprland expose the same item shape (name / active / focused
+//     / urgent / monitor.name / activate()), so both feed the same Repeater.
+//   * attwm is a different model entirely -- nine fixed tags addressed by
+//     bitmask, several of which can be viewed at once -- so it gets its own
+//     Repeater over an index range.
+//
+// Exactly one of the two Repeaters is ever non-empty. The `?:` and `&&` guards
+// only evaluate the taken branch, which is what keeps the unused backend
+// singletons from being instantiated (no stray IPC) -- see Compositor.
 Row {
     id: root
     required property var screen   // ShellScreen this bar lives on
     spacing: Theme.gap
 
-    // Which compositor are we under? Hyprland always exports this signature.
-    readonly property bool isHyprland: !!Quickshell.env("HYPRLAND_INSTANCE_SIGNATURE")
-
     // Name of the output this bar is on, used to filter workspaces.
     readonly property string monitorName: screen ? screen.name : ""
 
-    Repeater {
-        model: root.isHyprland ? Hyprland.workspaces : I3.workspaces
+    // attwm keeps tags, layout and geometry per output, so the tag row on this
+    // bar reflects this monitor rather than whichever one has focus.
+    readonly property var attwmOutput: Compositor.isAttwm
+        ? Attwm.outputFor(monitorName)
+        : null
 
-        Rectangle {
-            id: chip
+    // ── Sway/i3 and Hyprland ────────────────────────────────────────────────
+    Repeater {
+        model: Compositor.isAttwm ? 0
+             : Compositor.isHyprland ? Hyprland.workspaces
+             : I3.workspaces
+
+        WorkspaceChip {
             required property var modelData
+
             // only show workspaces belonging to this monitor. Both I3Workspace
             // and HyprlandWorkspace expose .monitor as an object with a .name.
             visible: modelData.monitor && modelData.monitor.name === root.monitorName
-            width: visible ? Math.max(height, label.implicitWidth + 16) : 0
-            height: Theme.barHeight - Theme.gap * 2
-            radius: Theme.radius
 
-            readonly property bool isFocused: modelData.focused
-            readonly property bool isUrgent: modelData.urgent
+            label: modelData.name
+            active: modelData.active
+            focused: modelData.focused
+            urgent: modelData.urgent
 
-            color: isUrgent ? Theme.red
-                 : isFocused ? Theme.blue
-                 : modelData.active ? Theme.surface1
-                 : Theme.surface0
+            onClicked: modelData.activate()
+        }
+    }
 
-            Text {
-                id: label
-                anchors.centerIn: parent
-                text: chip.modelData.name
-                font.family: Theme.font
-                font.pixelSize: Theme.fontSize
-                font.bold: chip.isFocused || chip.isUrgent
-                color: (chip.isFocused || chip.isUrgent) ? Theme.mantle : Theme.text
-            }
+    // ── attwm ───────────────────────────────────────────────────────────────
+    Repeater {
+        // 0 until the socket has produced a state object, so nothing is drawn
+        // if we guessed the window manager wrong.
+        model: Compositor.isAttwm ? Attwm.tagCount : 0
 
-            MouseArea {
-                anchors.fill: parent
-                cursorShape: Qt.PointingHandCursor
-                onClicked: chip.modelData.activate()
+        WorkspaceChip {
+            id: tag
+            required property int index
+
+            readonly property bool viewing: Attwm.tagActive(root.attwmOutput, index)
+            readonly property bool occupied: Attwm.tagOccupied(root.attwmOutput, index)
+
+            label: Attwm.tagNames[index] ?? (index + 1)
+            active: viewing
+            // Tags are per output and several outputs can view a tag at once;
+            // only the focused output's get the focused colour.
+            focused: viewing && !!root.attwmOutput && root.attwmOutput.focused
+            dimmed: !viewing && !occupied
+            dot: occupied && !viewing
+
+            // dwm's mouse bindings: view / toggle into view / send window there.
+            onClicked: button => {
+                const n = index + 1;
+                if (button === Qt.RightButton)
+                    Attwm.send(`toggle-view ${n}`);
+                else if (button === Qt.MiddleButton)
+                    Attwm.send(`tag ${n}`);
+                else
+                    Attwm.send(`view ${n}`);
             }
         }
     }