From b7e07bab0ebf138413ae2c87d704046d2ebb51f8 Mon Sep 17 00:00:00 2001
From: lenemter <lenemter@gmail.com>
Date: Mon, 5 Jan 2026 18:24:04 +0900
Subject: [PATCH] Blur behind extended behavior protocol

---
 protocol/pantheon-desktop-shell-v1.xml | 22 +++++++++++--
 protocol/pantheon-desktop-shell.vapi   |  2 ++
 src/PantheonShell.vala                 | 44 +++++++++++++++++++++++---
 3 files changed, 62 insertions(+), 6 deletions(-)

diff --git a/protocol/pantheon-desktop-shell-v1.xml b/protocol/pantheon-desktop-shell-v1.xml
index f9d5af0cd..32fcd7b2d 100644
--- a/protocol/pantheon-desktop-shell-v1.xml
+++ b/protocol/pantheon-desktop-shell-v1.xml
@@ -107,7 +107,7 @@
 
     <request name="add_blur">
       <description summary="add blur">
-        Tell the window manager to add background blur.
+        Tell the window manager to add background blur. Deprecated.
       </description>
 
       <arg name="left" type="uint"/>
@@ -119,7 +119,7 @@
 
     <request name="remove_blur">
       <description summary="remove blur">
-        Tell the window manager to remove blur that was set in set_blur_region.
+        Tell the window manager to remove blur that was set in set_blur_region. Deprecated.
       </description>
     </request>
   </interface>
@@ -159,5 +159,23 @@
 
       <arg name="dim" type="uint" summary="1 to dim, 0 to not dim"/>
     </request>
+
+    <request name="add_blur">
+      <description summary="add blur">
+        Tell the window manager to add background blur.
+      </description>
+
+      <arg name="left" type="uint"/>
+      <arg name="right" type="uint"/>
+      <arg name="top" type="uint"/>
+      <arg name="bottom" type="uint"/>
+      <arg name="clip_radius" type="uint"/>
+    </request>
+
+    <request name="remove_blur">
+      <description summary="remove blur">
+        Tell the window manager to remove blur that was set in set_blur_region.
+      </description>
+    </request>
   </interface>
 </protocol>
diff --git a/protocol/pantheon-desktop-shell.vapi b/protocol/pantheon-desktop-shell.vapi
index 7b27752c6..4d92957bf 100644
--- a/protocol/pantheon-desktop-shell.vapi
+++ b/protocol/pantheon-desktop-shell.vapi
@@ -62,6 +62,8 @@ namespace Pantheon.Desktop {
         public MakeCentered make_centered;
         public Focus focus;
         public MakeModal make_modal;
+        public AddBlur add_blur;
+        public RemoveBlur remove_blur;
     }
 
     [CCode (has_target = false, has_typedef = false)]
diff --git a/src/PantheonShell.vala b/src/PantheonShell.vala
index 97202cfcb..e7276f020 100644
--- a/src/PantheonShell.vala
+++ b/src/PantheonShell.vala
@@ -40,8 +40,8 @@ namespace Gala {
             set_size,
             set_hide_mode,
             request_visible_in_multitasking_view,
-            add_blur,
-            remove_blur,
+            add_blur_old,
+            remove_blur_old,
         };
 
         wayland_pantheon_widget_interface = {
@@ -54,6 +54,8 @@ namespace Gala {
             make_centered,
             focus_extended_behavior,
             make_modal,
+            add_blur,
+            remove_blur,
         };
 
         PanelSurface.quark = GLib.Quark.from_string ("-gala-wayland-panel-surface-data");
@@ -313,7 +315,7 @@ namespace Gala {
         ShellClientsManager.get_instance ().request_visible_in_multitasking_view (window);
     }
 
-    internal static void add_blur (Wl.Client client, Wl.Resource resource, uint left, uint right, uint top, uint bottom, uint clip_radius) {
+    internal static void add_blur_old (Wl.Client client, Wl.Resource resource, uint left, uint right, uint top, uint bottom, uint clip_radius) {
         unowned PanelSurface? panel_surface = resource.get_user_data<PanelSurface> ();
         if (panel_surface.wayland_surface == null) {
             warning ("Window tried to set blur region but wayland surface is null.");
@@ -330,7 +332,7 @@ namespace Gala {
         BlurManager.get_instance ().add_blur (window, left, right, top, bottom, clip_radius);
     }
 
-    internal static void remove_blur (Wl.Client client, Wl.Resource resource) {
+    internal static void remove_blur_old (Wl.Client client, Wl.Resource resource) {
         unowned PanelSurface? panel_surface = resource.get_user_data<PanelSurface> ();
         if (panel_surface.wayland_surface == null) {
             warning ("Window tried to remove blur but wayland surface is null.");
@@ -392,6 +394,40 @@ namespace Gala {
         ShellClientsManager.get_instance ().make_modal (window, dim == 1);
     }
 
+    internal static void add_blur (Wl.Client client, Wl.Resource resource, uint left, uint right, uint top, uint bottom, uint clip_radius) {
+        unowned ExtendedBehaviorSurface? eb_surface = resource.get_user_data<ExtendedBehaviorSurface> ();
+        if (eb_surface.wayland_surface == null) {
+            warning ("Window tried to set blur region but wayland surface is null.");
+            return;
+        }
+
+        Meta.Window? window;
+        eb_surface.wayland_surface.get ("window", out window, null);
+        if (window == null) {
+            warning ("Window tried to set blur region but wayland surface had no associated window.");
+            return;
+        }
+
+        BlurManager.get_instance ().add_blur (window, left, right, top, bottom, clip_radius);
+    }
+
+    internal static void remove_blur (Wl.Client client, Wl.Resource resource) {
+        unowned ExtendedBehaviorSurface? eb_surface = resource.get_user_data<ExtendedBehaviorSurface> ();
+        if (eb_surface.wayland_surface == null) {
+            warning ("Window tried to remove blur but wayland surface is null.");
+            return;
+        }
+
+        Meta.Window? window;
+        eb_surface.wayland_surface.get ("window", out window, null);
+        if (window == null) {
+            warning ("Window tried to remove blur but wayland surface had no associated window.");
+            return;
+        }
+
+        BlurManager.get_instance ().remove_blur (window);
+    }
+
     internal static void destroy_panel_surface (Wl.Client client, Wl.Resource resource) {
         resource.destroy ();
     }