ShellClients: Introduce an OSKWindow

Author: leolost2605

src/ShellClients/OSKWindow.vala

@@ -0,0 +1,54 @@
+/*
+ * Copyright 2026 elementary, Inc. (https://elementary.io)
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ * Authored by: Leonhard Kargl <leo.kargl@proton.me>
+ */
+
+public class Gala.OSKWindow : ShellWindow, RootTarget {
+    public OSKManager manager { private get; construct; }
+
+    public Clutter.Actor? actor { get { return (Clutter.Actor) window.get_compositor_private (); } }
+
+    private GestureController gesture_controller;
+
+    public OSKWindow (OSKManager manager, Meta.Window window) {
+        Object (manager: manager, window: window);
+    }
+
+    construct {
+        gesture_controller = new GestureController (CUSTOM) {
+            progress = 1
+        };
+        add_gesture_controller (gesture_controller);
+
+        window.size_changed.connect (update_target);
+        update_target ();
+
+        manager.notify["visible"].connect (sync_visible);
+        sync_visible ();
+    }
+
+    private void update_target () {
+        var actor = (Clutter.Actor) window.get_compositor_private ();
+        hide_target = new PropertyTarget (CUSTOM, actor, "translation-y", typeof (float), 0f, actor.height);
+    }
+
+    private void sync_visible () {
+        if (manager.visible) {
+            gesture_controller.goto (0);
+        } else {
+            gesture_controller.goto (1);
+        }
+    }
+
+    protected override double get_hidden_progress () {
+        return gesture_controller.progress;
+    }
+
+    protected override void get_window_position (Mtk.Rectangle window_rect, out int x, out int y) {
+        var monitor_geom = window.display.get_monitor_geometry (manager.monitor);
+        x = monitor_geom.x + (monitor_geom.width - window_rect.width) / 2;
+        y = monitor_geom.y + monitor_geom.height - window_rect.height;
+    }
+}

src/ShellClients/ShellClientsManager.vala

@@ -8,12 +8,12 @@
 public class Gala.ShellClientsManager : Object, GestureTarget {
     private static ShellClientsManager instance;
 
-    public static void init (WindowManager wm, InputMethod im) {
+    public static void init (WindowManager wm, InputMethod im, OSKManager osk_manager) {
         if (instance != null) {
             return;
         }
 
-        instance = new ShellClientsManager (wm, im);
+        instance = new ShellClientsManager (wm, im, osk_manager);
     }
 
     public static unowned ShellClientsManager? get_instance () {
@@ -22,6 +22,7 @@ public class Gala.ShellClientsManager : Object, GestureTarget {
 
     public WindowManager wm { get; construct; }
     public InputMethod im { get; construct; }
+    public OSKManager osk_manager { get; construct; }
 
     private NotificationsClient notifications_client;
     private ManagedClient[] protocol_clients = {};
@@ -31,9 +32,10 @@ public class Gala.ShellClientsManager : Object, GestureTarget {
     private GLib.HashTable<Meta.Window, PanelWindow> panel_windows = new GLib.HashTable<Meta.Window, PanelWindow> (null, null);
     private GLib.HashTable<Meta.Window, ExtendedBehaviorWindow> positioned_windows = new GLib.HashTable<Meta.Window, ExtendedBehaviorWindow> (null, null);
     private IBusCandidateWindow? ibus_candidate_window = null;
+    private OSKWindow? osk_window = null;
 
-    private ShellClientsManager (WindowManager wm, InputMethod im) {
-        Object (wm: wm, im: im);
+    private ShellClientsManager (WindowManager wm, InputMethod im, OSKManager osk_manager) {
+        Object (wm: wm, im: im, osk_manager: osk_manager);
     }
 
     construct {
@@ -252,6 +254,12 @@ public class Gala.ShellClientsManager : Object, GestureTarget {
         window.unmanaged.connect_after (() => ibus_candidate_window = null);
     }
 
+    public void make_osk_window (Meta.Window window) requires (osk_window == null) {
+        osk_window = new OSKWindow (osk_manager, window);
+
+        window.unmanaged.connect_after (() => osk_window = null);
+    }
+
     public void propagate (UpdateType update_type, GestureAction action, double progress) {
         foreach (var window in positioned_windows.get_values ()) {
             window.propagate (update_type, action, progress);

src/WindowManager.vala

@@ -142,7 +142,7 @@ namespace Gala {
 
             osk_manager = new OSKManager (get_display (), input_method);
 
-            ShellClientsManager.init (this, input_method);
+            ShellClientsManager.init (this, input_method, osk_manager);
             BlurManager.init (this);
             daemon_manager = new DaemonManager (get_display ());
 

src/meson.build

@@ -52,6 +52,7 @@ gala_bin_sources = files(
     'ShellClients/IBusCandidateWindow.vala',
     'ShellClients/ManagedClient.vala',
     'ShellClients/NotificationsClient.vala',
+    'ShellClients/OSKWindow.vala',
     'ShellClients/PanelWindow.vala',
     'ShellClients/PositionedWindow.vala',
     'ShellClients/ShellClientsManager.vala',