From 9fab13452a26ed55c01047d4225f699f43bba20d Mon Sep 17 00:00:00 2001
From: Aylur <k.demeter@protonmail.com>
Date: Mon, 14 Oct 2024 16:45:03 +0000
Subject: feat: Astal3

---
 lib/astal/gtk3/src/widget/overlay.vala | 57 ++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 lib/astal/gtk3/src/widget/overlay.vala

(limited to 'lib/astal/gtk3/src/widget/overlay.vala')

diff --git a/lib/astal/gtk3/src/widget/overlay.vala b/lib/astal/gtk3/src/widget/overlay.vala
new file mode 100644
index 0000000..603ee66
--- /dev/null
+++ b/lib/astal/gtk3/src/widget/overlay.vala
@@ -0,0 +1,57 @@
+public class Astal.Overlay : Gtk.Overlay {
+    public bool pass_through { get; set; }
+
+    public Gtk.Widget? overlay {
+        get { return overlays.nth_data(0); }
+        set {
+            foreach (var ch in get_children()) {
+                if (ch != child)
+                    remove(ch);
+            }
+
+            if (value != null)
+                add_overlay(value);
+        }
+    }
+
+    public List<weak Gtk.Widget> overlays {
+        owned get { return get_children(); }
+        set {
+            foreach (var ch in get_children()) {
+                if (ch != child)
+                    remove(ch);
+            }
+
+            foreach (var ch in value)
+                add_overlay(ch);
+        }
+    }
+
+    public new Gtk.Widget? child {
+        get { return get_child(); }
+        set {
+            var ch = get_child();
+            if (ch != null)
+                remove(ch);
+
+            if (value != null)
+                add(value);
+        }
+    }
+
+    construct {
+        notify["pass-through"].connect(() => {
+            update_pass_through();
+        });
+    }
+
+    private void update_pass_through() {
+        foreach (var child in get_children())
+            set_overlay_pass_through(child, pass_through);
+    }
+
+    public new void add_overlay(Gtk.Widget widget) {
+        base.add_overlay(widget);
+        set_overlay_pass_through(widget, pass_through);
+    }
+}
-- 
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