xdg-desktop-portal-gnome/SOURCES/windows-changed-signal.patch

From 396a999f3e9daa0e3511e590339915e5ad9b6b31 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Mon, 24 Oct 2022 16:10:00 -0300
Subject: [PATCH 1/4] screencastwidget: Trivial style cleanup

(cherry picked from commit 663994bc20a0d93264a0b68222522c68e8525ba4)
---
 src/screencastwidget.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/screencastwidget.c b/src/screencastwidget.c
index cdd57dc..0009a35 100644
--- a/src/screencastwidget.c
+++ b/src/screencastwidget.c
@@ -266,9 +266,9 @@ connect_windows_changed_listener (ScreenCastWidget *widget)
   g_assert (!widget->windows_changed_handler_id);
   widget->windows_changed_handler_id =
     g_signal_connect (widget->shell_introspect,
-                          "windows-changed",
-                          G_CALLBACK (on_windows_changed),
-                          widget);
+                      "windows-changed",
+                      G_CALLBACK (on_windows_changed),
+                      widget);
   shell_introspect_ref_listeners (widget->shell_introspect);
 }
 
-- 
2.38.1


From 5e7444c4ac4e0bc181a7cee9c00b3e542f77e0f6 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Mon, 24 Oct 2022 16:10:31 -0300
Subject: [PATCH 2/4] screencastwidget: Use g_clear_signal_handler

Small cleanup

(cherry picked from commit e0002330c41d62f49d9b58002ae1a607a79c67bf)
---
 src/meson.build        | 2 +-
 src/screencastwidget.c | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/meson.build b/src/meson.build
index 6d2e476..8341aa1 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -60,7 +60,7 @@ deps = [
   declare_dependency(sources: built_sources),
   meson.get_compiler('c').find_library('m'),
   dependency('fontconfig'),
-  dependency('glib-2.0', version: '>= 2.44'),
+  dependency('glib-2.0', version: '>= 2.62'),
   dependency('gio-unix-2.0'),
   dependency('gtk4', version: '>= 4.0'),
   dependency('gsettings-desktop-schemas'),
diff --git a/src/screencastwidget.c b/src/screencastwidget.c
index 0009a35..82dd3bd 100644
--- a/src/screencastwidget.c
+++ b/src/screencastwidget.c
@@ -276,9 +276,8 @@ static void
 disconnect_windows_changed_listener (ScreenCastWidget *widget)
 {
   g_assert (widget->windows_changed_handler_id);
-  g_signal_handler_disconnect (widget->shell_introspect,
-                               widget->windows_changed_handler_id);
-  widget->windows_changed_handler_id = 0;
+  g_clear_signal_handler (&widget->windows_changed_handler_id,
+                          widget->shell_introspect);
   shell_introspect_unref_listeners (widget->shell_introspect);
 }
 
-- 
2.38.1


From 6b491b555bb3514da4fcadb4147813217392724b Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Mon, 24 Oct 2022 18:55:51 -0300
Subject: [PATCH 3/4] Import newer org.gnome.Shell.Introspect.xml

It has a handy signal we will use soon, the "WindowsChanged" signal.

(cherry picked from commit 41277ae33a9c9d54e6df7d7277854ccc79265fc2)
---
 data/org.gnome.Shell.Introspect.xml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/data/org.gnome.Shell.Introspect.xml b/data/org.gnome.Shell.Introspect.xml
index d71f241..cb19cfe 100644
--- a/data/org.gnome.Shell.Introspect.xml
+++ b/data/org.gnome.Shell.Introspect.xml
@@ -18,6 +18,12 @@
     -->
     <signal name="RunningApplicationsChanged" />
 
+    <!--
+        WindowsChanged:
+        @short_description: Notifies when any window opens or closes
+    -->
+    <signal name="WindowsChanged" />
+
     <!--
         GetRunningApplications:
         @short_description: Retrieves the description of all running applications
@@ -70,6 +76,14 @@
     -->
     <property name="AnimationsEnabled" type="b" access="read"/>
 
+    <!--
+       ScreenSize:
+       @short_description: The size of the screen
+
+       Since: 3
+    -->
+    <property name="ScreenSize" type="(ii)" access="read"/>
+
     <property name="version" type="u" access="read"/>
   </interface>
 </node>
-- 
2.38.1


From 70b25b7abb8223876f0ca509852e21ec26e3f624 Mon Sep 17 00:00:00 2001
From: Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
Date: Mon, 24 Oct 2022 18:56:59 -0300
Subject: [PATCH 4/4] shellintrospect: React to "windows-changed" signal

In addition to fetching the list of windows whenever a new
listener registers, listen to the "windows-changed" signal
from the D-Bus proxy and update the list of windows when
Shell signals us.

Fixes
https://gitlab.gnome.org/GNOME/xdg-desktop-portal-gnome/-/issues/17

(cherry picked from commit ddc82436d623a7904882230ede0049a8e3ee6595)
---
 src/shellintrospect.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/shellintrospect.c b/src/shellintrospect.c
index 6b007b4..1fa8b93 100644
--- a/src/shellintrospect.c
+++ b/src/shellintrospect.c
@@ -189,6 +189,14 @@ shell_introspect_are_animations_enabled (ShellIntrospect *shell_introspect,
   return TRUE;
 }
 
+static void
+on_windows_changed_cb (GDBusProxy      *proxy,
+                       ShellIntrospect *shell_introspect)
+{
+  if (shell_introspect->num_listeners > 0)
+    sync_state (shell_introspect);
+}
+
 static void
 sync_animations_enabled (ShellIntrospect *shell_introspect)
 {
@@ -233,6 +241,10 @@ on_shell_introspect_proxy_acquired (GObject      *object,
 
   shell_introspect->proxy = proxy;
 
+  g_signal_connect (proxy, "windows-changed",
+                    G_CALLBACK (on_windows_changed_cb),
+                    shell_introspect);
+
   if (shell_introspect->num_listeners > 0)
     sync_state (shell_introspect);
 
-- 
2.38.1