tags should be persistent now during X server run

[dwm.git] / tag.c

diff --git a/tag.c b/tag.c
index bbed872..5161ae2 100644 (file)
--- a/tag.c
+++ b/tag.c
@@ -3,6 +3,8 @@
 #include <regex.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
+#include <X11/Xatom.h>
 #include <X11/Xutil.h>
 
 /* static */
@@ -23,6 +25,7 @@ RULES
 
 static Regs *regs = NULL;
 static unsigned int nrules = 0;
+static char prop[512];
 
 /* extern */
 
@@ -65,16 +68,32 @@ isvisible(Client *c) {
 
 void
 settags(Client *c, Client *trans) {
-       char prop[512];
        unsigned int i, j;
        regmatch_t tmp;
        Bool matched = trans != NULL;
        XClassHint ch = { 0 };
+       XTextProperty name;
 
-       if(matched)
+       if(matched) {
                for(i = 0; i < ntags; i++)
                        c->tags[i] = trans->tags[i];
+               return;
+       }
        else {
+               /* check if window has set a property */
+               name.nitems = 0;
+               XGetTextProperty(dpy, c->win, &name, dwmtags);
+               if(name.nitems && name.encoding == XA_STRING) {
+                       strncpy(prop, (char *)name.value, sizeof prop - 1);
+                       prop[sizeof prop - 1] = '\0';
+                       XFree(name.value);
+                       for(i = 0; i < ntags && i < sizeof prop - 1 && prop[i] != '\0'; i++)
+                               if((c->tags[i] = prop[i] == '+'))
+                                       matched = True;
+               }
+               if(matched)
+                       return;
+               /* rule matching */
                XGetClassHint(dpy, c->win, &ch);
                snprintf(prop, sizeof prop, "%s:%s:%s",
                                ch.res_class ? ch.res_class : "",
@@ -110,6 +129,12 @@ tag(const char *arg) {
        i = arg ? atoi(arg) : 0;
        if(i >= 0 && i < ntags)
                sel->tags[i] = True;
+       if(sel) {
+               for(i = 0; i < ntags && i < sizeof prop - 1; i++)
+                       prop[i] = sel->tags[i] ? '+' : '-';
+               prop[i] = '\0';
+               XChangeProperty(dpy, sel->win, dwmtags, XA_STRING, 8, PropModeReplace, (unsigned char *)prop, i);
+       }
        arrange();
 }