From e06ae737ef0a29e98363d6453ae3049aed164a64 Mon Sep 17 00:00:00 2001
From: Aylur <k.demeter@protonmail.com>
Date: Sat, 7 Sep 2024 18:00:17 +0200
Subject: feat: App monitor signals

---
 core/src/astal.vala | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'core/src')

diff --git a/core/src/astal.vala b/core/src/astal.vala
index 316da6b..134293b 100644
--- a/core/src/astal.vala
+++ b/core/src/astal.vala
@@ -8,6 +8,27 @@ public class Application : Gtk.Application {
 
     public string socket_path { get; private set; }
 
+    [DBus (visible=false)]
+    public signal void monitor_added(Gdk.Monitor monitor);
+
+    [DBus (visible=false)]
+    public signal void monitor_removed(Gdk.Monitor monitor);
+
+    [DBus (visible=false)]
+    public List<weak Gdk.Monitor> monitors {
+        owned get {
+            var display = Gdk.Display.get_default();
+            var list = new List<weak Gdk.Monitor>();
+            for (var i = 0; i <= display.get_n_monitors(); ++i) {
+                var mon = display.get_monitor(i);
+                if (mon != null) {
+                    list.append(mon);
+                }
+            }
+            return list;
+        }
+    }
+
     [DBus (visible=false)]
     public string instance_name {
         get { return _instance_name; }
@@ -219,6 +240,18 @@ public class Application : Gtk.Application {
         if (instance_name == null)
             instance_name = "astal";
 
+        activate.connect(() => {
+            var display = Gdk.Display.get_default();
+            display.monitor_added.connect((mon) => {
+                monitor_added(mon);
+                notify_property("monitors");
+            });
+            display.monitor_removed.connect((mon) => {
+                monitor_removed(mon);
+                notify_property("monitors");
+            });
+        });
+
         shutdown.connect(() => { try { quit(); } catch(Error err) {} });
         Unix.signal_add(1, () => { try { quit(); } catch(Error err) {} }, Priority.HIGH);
         Unix.signal_add(2, () => { try { quit(); } catch(Error err) {} }, Priority.HIGH);
-- 
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