From cf264864768d64a8e186e8e3a39f5a7932ee9bb9 Mon Sep 17 00:00:00 2001
From: Rafostar <40623528+Rafostar@users.noreply.github.com>
Date: Sun, 6 Dec 2020 23:12:09 +0100
Subject: [PATCH] Flatpak: Add GTK4 popover unrealize patch

This is a temporary workaround I came up with for app performance drop on Wayland after any popover is opened. We are waiting for a proper fix from GTK4 devs. Until then, this is still much better that nothing.
---
 pkgs/flatpak/lib/gtk4-popover-unrealize.patch | 31 +++++++++++++++++++
 pkgs/flatpak/lib/gtk4.json                    |  4 +++
 2 files changed, 35 insertions(+)
 create mode 100644 pkgs/flatpak/lib/gtk4-popover-unrealize.patch

diff --git a/pkgs/flatpak/lib/gtk4-popover-unrealize.patch b/pkgs/flatpak/lib/gtk4-popover-unrealize.patch
new file mode 100644
index 00000000..c5b90efd
--- /dev/null
+++ b/pkgs/flatpak/lib/gtk4-popover-unrealize.patch
@@ -0,0 +1,31 @@
+From b413ee2c7d458c7005d3d3d1da8822cd86893ac0 Mon Sep 17 00:00:00 2001
+From: Rafostar <40623528+Rafostar@users.noreply.github.com>
+Date: Fri, 4 Dec 2020 19:25:34 +0100
+Subject: [PATCH] popover: Call unrealize on hide
+
+When popover is shown "realize" method is called which creates a new
+surface for popup. Unfortunately this causes performance drop on Wayland until that
+surface is destroyed what happens inside "unrealize" method during popover destruction.
+
+This commit changes default behavior in a way that surface will be destroyed
+when popover is closed and app will ragain the performance it lost when
+popover was shown.
+---
+ gtk/gtkpopover.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/gtk/gtkpopover.c b/gtk/gtkpopover.c
+index 504dcd6cc1..a7a764d483 100644
+--- a/gtk/gtkpopover.c
++++ b/gtk/gtkpopover.c
+@@ -951,6 +951,7 @@ gtk_popover_hide (GtkWidget *widget)
+ 
+   gtk_popover_set_mnemonics_visible (GTK_POPOVER (widget), FALSE);
+   _gtk_widget_set_visible_flag (widget, FALSE);
++  gtk_widget_unrealize (widget);
+   gtk_widget_unmap (widget);
+   g_signal_emit (widget, signals[CLOSED], 0);
+ }
+-- 
+GitLab
+
diff --git a/pkgs/flatpak/lib/gtk4.json b/pkgs/flatpak/lib/gtk4.json
index f739a9f6..5f2a38eb 100644
--- a/pkgs/flatpak/lib/gtk4.json
+++ b/pkgs/flatpak/lib/gtk4.json
@@ -17,6 +17,10 @@
             "type": "git",
             "url": "https://gitlab.gnome.org/GNOME/gtk.git",
             "commit": "53cd499621b5f55df658725fb4f83d365a1319ad"
+        },
+        {
+            "type": "patch",
+            "path": "gtk4-popover-unrealize.patch"
         }
     ]
 }