Fixed crash in systray with non-Latin languagess (thanks zcodes)

ChangeLog

@@ -1,3 +1,10 @@
+2016-05-07 master
+- Fixes:
+  - Fixed crash in systray with non-Latin languagess (thanks zcodes)
+  - Invalidate cached pixmaps on resize/move (issue #576)
+  - Battery: do not show negative durations when the sensors return garbage
+  - Proper workaround for issue #555
+
 2016-04-02 0.12.9
 - Fixes:
   - Regression: Do not detect empty areas as clickable (issue #572)

src/systray/systraybar.c

@@ -33,6 +33,7 @@
 #include "systraybar.h"
 #include "server.h"
 #include "panel.h"
+#include "window.h"
 
 GSList *icons;
 
@@ -534,15 +535,7 @@ gboolean add_icon(Window win)
 
 	XSelectInput(server.display, win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
 
-	XTextProperty xname;
-	char *name;
-	if (XGetWMName(server.display, win, &xname)) {
-		name = strdup((char *)xname.value);
-		XFree(xname.value);
-	} else {
-		name = strdup("");
-	}
-
+    char *name = get_window_name(win);
 	if (systray_profile)
 		fprintf(stderr, "[%f] %s:%d win = %lu (%s)\n", profiling_get_time(), __FUNCTION__, __LINE__, win, name);
 	Panel *panel = systray.area.panel;
@@ -1068,15 +1061,7 @@ void systray_property_notify(TrayWindow *traywin, XEvent *e)
 	Atom at = e->xproperty.atom;
 	if (at == server.atom.WM_NAME) {
 		free(traywin->name);
-
-		XTextProperty xname;
-		if (XGetWMName(server.display, traywin->win, &xname)) {
-			traywin->name = strdup((char *)xname.value);
-			XFree(xname.value);
-		} else {
-			traywin->name = strdup("");
-		}
-
+        traywin->name = get_window_name(traywin->win);
 		if (systray.sort == SYSTRAY_SORT_ASCENDING || systray.sort == SYSTRAY_SORT_DESCENDING) {
 			systray.list_icons = g_slist_sort(systray.list_icons, compare_traywindows);
 			// print_icons();

src/util/window.c

@@ -320,3 +320,32 @@ gulong *get_best_icon(gulong *data, int icon_count, int num, int *iw, int *ih, i
 	*ih = height[icon_num];
 	return icon_data[icon_num];
 }
+
+// Thanks zcodes!
+char *get_window_name(Window win)
+{
+    XTextProperty text_property;
+    Status status = XGetWMName(server.display, win, &text_property);
+    if (!status || !text_property.value || !text_property.nitems) {
+        return strdup("");
+    }
+
+    char **name_list;
+    int count;
+    status = Xutf8TextPropertyToTextList(server.display, &text_property, &name_list, &count);
+    if (status < Success || !count) {
+        XFree(text_property.value);
+        return strdup("");
+    }
+
+    if (!name_list[0]) {
+        XFreeStringList(name_list);
+        XFree(text_property.value);
+        return strdup("");
+    }
+
+    char *result = strdup(name_list[0]);
+    XFreeStringList(name_list);
+    XFree(text_property.value);
+    return result;
+}

src/util/window.h

@@ -33,4 +33,6 @@ void change_window_desktop(Window win, int desktop);
 int get_icon_count(gulong *data, int num);
 gulong *get_best_icon(gulong *data, int icon_count, int num, int *iw, int *ih, int best_icon_size);
 
+char *get_window_name(Window win);
+
 #endif