initial commit

modules/WindowList.qml

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+import Quickshell
+import Quickshell.Wayland
+import QtQuick
+import qs.config
+import qs.services
+
+// Middle section: one button per open window.
+//
+// Two sources, because no one protocol does the job everywhere:
+//
+// - wlr-foreign-toplevel-management, which works on any wlroots-based
+//   compositor without talking to a single window manager's IPC.
+// - attwm's socket, whenever it answers. Under river 0.4 the foreign-toplevel
+//   protocol can list windows but cannot focus one — see services/Attwm.qml —
+//   and its window ids are what make the click land on the right window.
+Item {
+    id: root
+
+    required property var bar
+
+    readonly property bool attwm: Attwm.available
+
+    readonly property string screenName: root.bar.screen ? root.bar.screen.name : ""
+
+    readonly property var windows: {
+        if (root.attwm) {
+            if (!Config.windowsPerScreen)
+                return Attwm.allWindows;
+
+            // attwm reports windows under the output they are on, so no
+            // filtering is needed — and none of them is screenless.
+            const out = Attwm.outputFor(root.screenName);
+            return out ? out.windows : [];
+        }
+
+        const all = [...ToplevelManager.toplevels.values];
+        if (!Config.windowsPerScreen)
+            return all;
+
+        // A toplevel with no reported screens yet is still shown, otherwise
+        // freshly mapped windows would flicker in late.
+        return all.filter(t => t.screens.length === 0 || t.screens.some(s => s && s.name === root.screenName));
+    }
+
+    ListView {
+        id: list
+
+        anchors.fill: parent
+        orientation: ListView.Horizontal
+        spacing: Theme.spacing
+        clip: true
+        boundsBehavior: Flickable.StopAtBounds
+
+        model: ScriptModel {
+            values: root.windows
+
+            // Toplevels are long-lived objects and diff by identity. attwm's
+            // are plain objects re-parsed on every state change, so they need a
+            // key, or each title change would rebuild every delegate.
+            objectProp: root.attwm ? "id" : ""
+        }
+
+        delegate: WindowButton {
+            required property var modelData
+
+            win: modelData
+            attwm: root.attwm
+            height: list.height - Theme.spacing
+            anchors.verticalCenter: parent ? parent.verticalCenter : undefined
+        }
+    }
+}