feat(window-switcher): the overlay skeleton, and a proven Escape

A fifth component, so the same keepalive window as the other four: a
config with no visible window exits without reporting anything, and this
overlay is hidden almost always.

Escape is handled on a focused Item inside the PanelWindow rather than on
the window, because key events reach a focused item and
Keys.onEscapePressed on a PanelWindow never fires. Proven before the grid
is built on top of it, since keyboard navigation depends on the same
grab.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SYg4wYHq5XNbiVmMeKRb1S

1 files changed, 26 insertions, 0 deletions

diff --git a/window-switcher/shell.qml b/window-switcher/shell.qml
new file mode 100644
index 0000000..1581f62
--- /dev/null
+++ b/window-switcher/shell.qml
@@ -0,0 +1,26 @@
+// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License version 2 as
+// published by the Free Software Foundation.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+import Quickshell
+import Quickshell.Io
+
+ShellRoot {
+    Switcher { id: switcher }
+
+    // Bound to ALT + TAB in Hyprland:
+    // `qs -p <this dir> ipc call switcher toggle`
+    IpcHandler {
+        target: "switcher"
+        function toggle() { switcher.toggle(); }
+        function show() { switcher.open = true; }
+        function close() { switcher.close(); }
+    }
+}