wf-background: Load the next background when receiving SIGUSR1.

WayfireWM · Dec 5, 2023 · e342815 · e342815
1 parent f734c79
commit e342815
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diff --git a/src/background/background.cpp b/src/background/background.cpp
@@ -15,6 +15,7 @@
 
 #include <gtk-utils.hpp>
 #include <gtk-layer-shell.h>
+#include <glib-unix.h>
 
 #include "background.hpp"
 
@@ -283,6 +284,8 @@ void WayfireBackground::setup_window()
     background_preserve_aspect.set_callback(reset_background);
     background_cycle_timeout.set_callback(reset_cycle);
 
+    g_unix_signal_add(SIGHUP, sigusr1_handler, this);
+
     window.property_scale_factor().signal_changed().connect(
         sigc::mem_fun(this, &WayfireBackground::set_background));
 }

diff --git a/src/background/background.hpp b/src/background/background.hpp
@@ -68,6 +68,13 @@ class WayfireBackground
     void set_background();
     void reset_cycle_timeout();
 
+    static int sigusr1_handler(void* thiz) {
+        std::cout << "Got SIGUSR1, reloading background" << std::endl;
+        ((WayfireBackground*) thiz)->change_background(0);
+        g_unix_signal_add(SIGUSR1, sigusr1_handler, thiz);
+        return 0;
+    }
+
     void setup_window();
 
   public: