Run labwc-gtktheme.py if labwc-theme-name is GTK

Author: johanmalm

README.md

@@ -8,6 +8,9 @@ purposes of testing labwc during development. Don't expect too much :smile:
 
 <img src="https://user-images.githubusercontent.com/1019119/151689576-e9934712-f134-44a7-b5e7-3c05181b1a38.png" />
 
+If you install labwc-gtktheme.py and set labwc-theme to GTK it'll
+automatically sync with the selected GTK theme.
+
 ### build
 
 ```
@@ -23,6 +26,5 @@ ninja -C build install
 
 This installs the binary to /usr/local/bin and data files to their respective locations.
 
-
 If you find it a useful tool and want to expand its scope, feel free.
 

main.c

@@ -1,4 +1,5 @@
 #define _POSIX_C_SOURCE 200809L
+#include <assert.h>
 #include <gio/gio.h>
 #include <gtk/gtk.h>
 #include <string.h>
@@ -21,6 +22,19 @@ static struct themes cursor_themes = { 0 };
 
 static GSettings *settings;
 
+void
+spawn_sync(char const *command)
+{
+	GError *err = NULL;
+	assert(command);
+	g_spawn_command_line_sync(command, NULL, NULL, NULL, &err);
+	if (err) {
+		fprintf(stderr, "warn: could not find %s\n", command);
+		g_error_free(err);
+	}
+}
+
+
 static void
 environment_set(const char *key, const char *value)
 {
@@ -85,6 +99,11 @@ update(GtkWidget *widget, gpointer data)
 	/* ~/.config/labwc/environment */
 	environment_set("XCURSOR_THEME", COMBO_TEXT(cursor_theme_name));
 
+
+	if (!strcmp(COMBO_TEXT(openbox_theme_name), "GTK")) {
+		spawn_sync("labwc-gtktheme.py");
+	}
+
 	/* reconfigure labwc */
 	if (!fork()) {
 		execl("/bin/sh", "/bin/sh", "-c", "killall -s SIGHUP labwc", (void *)NULL);