Dogcows Code - chaz/openbox/blob - cwmcc/prop.c

   1 #include "cwmcc_internal.h"
   2
   3 #include <X11/Xutil.h>
   4 #include <glib.h>
   5 #ifdef HAVE_STRING_H
   6 #  include <string.h>
   7 #endif
   8
   9 /* this just isn't used...
  10 static gboolean get(Window win, Atom prop, Atom type, int size,
  11                     guchar **data, gulong num)
  12 {
  13     gboolean ret = FALSE;
  14     int res;
  15     guchar *xdata = NULL;
  16     Atom ret_type;
  17     int ret_size;
  18     gulong ret_items, bytes_left;
  19     long num32 = 32 / size * num; /\* num in 32-bit elements *\/
  20
  21     res = XGetWindowProperty(cwmcc_display, win, prop, 0l, num32,
  22                              FALSE, type, &ret_type, &ret_size,
  23                              &ret_items, &bytes_left, &xdata);
  24     if (res == Success && ret_items && xdata) {
  25         if (ret_size == size && ret_items >= num) {
  26             *data = g_memdup(xdata, num * (size / 8));
  27             ret = TRUE;
  28         }
  29         XFree(xdata);
  30     }
  31     return ret;
  32 }
  33 */
  34
  35 static gboolean get_prealloc(Window win, Atom prop, Atom type, int size,
  36                              guchar *data, gulong num)
  37 {
  38     gboolean ret = FALSE;
  39     int res;
  40     guchar *xdata = NULL;
  41     Atom ret_type;
  42     int ret_size;
  43     gulong ret_items, bytes_left;
  44     long num32 = 32 / size * num; /* num in 32-bit elements */
  45
  46     res = XGetWindowProperty(cwmcc_display, win, prop, 0l, num32,
  47                              FALSE, type, &ret_type, &ret_size,
  48                              &ret_items, &bytes_left, &xdata);
  49     if (res == Success && ret_items && xdata) {
  50         if (ret_size == size && ret_items >= num) {
  51             gulong i;
  52             for (i = 0; i < num; ++i)
  53                 switch (size) {
  54                 case 8:
  55                     data[i] = xdata[i];
  56                     break;
  57                 case 16:
  58                     ((guint16*)data)[i] = ((guint16*)xdata)[i];
  59                     break;
  60                 case 32:
  61                     ((guint32*)data)[i] = ((guint32*)xdata)[i];
  62                     break;
  63                 default:
  64                     g_assert_not_reached(); /* unhandled size */
  65                 }
  66             ret = TRUE;
  67         }
  68         XFree(xdata);
  69     }
  70     return ret;
  71 }
  72
  73 static gboolean get_all(Window win, Atom prop, Atom type, int size,
  74                         guchar **data, gulong *num)
  75 {
  76     gboolean ret = FALSE;
  77     int res;
  78     guchar *xdata = NULL;
  79     Atom ret_type;
  80     int ret_size;
  81     gulong ret_items, bytes_left;
  82
  83     res = XGetWindowProperty(cwmcc_display, win, prop, 0l, G_MAXLONG,
  84                              FALSE, type, &ret_type, &ret_size,
  85                              &ret_items, &bytes_left, &xdata);
  86     if (res == Success) {
  87         if (ret_size == size && ret_items > 0) {
  88             *data = g_memdup(xdata, ret_items * (size / 8));
  89             *num = ret_items;
  90             ret = TRUE;
  91         }
  92         XFree(xdata);
  93     }
  94     return ret;
  95 }
  96
  97 static gboolean get_stringlist(Window win, Atom prop, char ***list, int *nstr)
  98 {
  99     XTextProperty tprop;
 100     gboolean ret = FALSE;
 101
 102     if (XGetTextProperty(cwmcc_display, win, &tprop, prop) && tprop.nitems) {
 103         if (XTextPropertyToStringList(&tprop, list, nstr))
 104             ret = TRUE;
 105         XFree(tprop.value);
 106     }
 107     return ret;
 108 }
 109
 110 gboolean prop_get32(Window win, Atom prop, Atom type, gulong *ret)
 111 {
 112     return get_prealloc(win, prop, type, 32, (guchar*)ret, 1);
 113 }
 114
 115 gboolean prop_get_array32(Window win, Atom prop, Atom type, gulong **ret,
 116                           gulong *nret)
 117 {
 118     return get_all(win, prop, type, 32, (guchar**)ret, nret);
 119 }
 120
 121 gboolean prop_get_string_locale(Window win, Atom prop, char **data)
 122 {
 123     char **list;
 124     int nstr;
 125
 126     if (get_stringlist(win, prop, &list, &nstr) && nstr) {
 127         *data = g_locale_to_utf8(list[0], -1, NULL, NULL, NULL);
 128         XFreeStringList(list);
 129         if (data) return TRUE;
 130     }
 131     return FALSE;
 132 }
 133
 134 gboolean prop_get_string_utf(Window win, Atom prop, Atom type, char **ret)
 135 {
 136     char *raw;
 137     gulong num;
 138
 139     if (get_all(win, prop, type, 8, (guchar**)&raw, &num)) {
 140         *ret = g_strdup(raw); /* grab the first string from the list */
 141         g_free(raw);
 142         return TRUE;
 143     }
 144     return FALSE;
 145 }
 146
 147 gboolean prop_get_strings_utf(Window win, Atom prop, Atom type, char ***ret)
 148 {
 149     char *raw, *p;
 150     gulong num, i;
 151
 152     if (get_all(win, prop, type, 8, (guchar**)&raw, &num)) {
 153         *ret = g_new(char*, num + 1);
 154         (*ret)[num] = NULL; /* null terminated list */
 155
 156         p = raw;
 157         for (i = 0; i < num; ++i) {
 158             (*ret)[i] = g_strdup(p);
 159             p = strchr(p, '\0');
 160         }
 161         g_free(raw);
 162         return TRUE;
 163     }
 164     return FALSE;
 165 }
 166
 167 gboolean prop_get_strings_locale(Window win, Atom prop, Atom type,char ***ret){
 168     char *raw, *p;
 169     gulong num, i;
 170
 171     if (get_all(win, prop, type, 8, (guchar**)&raw, &num)) {
 172         *ret = g_new(char*, num + 1);
 173         (*ret)[num] = NULL; /* null terminated list */
 174
 175         p = raw;
 176         for (i = 0; i < num; ++i) {
 177             (*ret)[i] = g_locale_to_utf8(p, -1, NULL, NULL, NULL);
 178             /* make sure translation did not fail */
 179             if (!(*ret)[i]) {
 180                 g_strfreev(*ret); /* free what we did so far */
 181                 break; /* the force is not strong with us */
 182             }
 183             p = strchr(p, '\0');
 184         }
 185         g_free(raw);
 186         if (i == num)
 187             return TRUE;
 188     }
 189     return FALSE;
 190 }
 191
 192 void prop_set_strings_utf(Window win, Atom prop, Atom type, char **strs)
 193 {
 194     GString *str;
 195     guint i;
 196
 197     str = g_string_sized_new(0);
 198     for (i = 0; strs[i]; ++i) {
 199         str = g_string_append(str, strs[i]);
 200         str = g_string_append_c(str, '\0');
 201     }
 202     XChangeProperty(cwmcc_display, win, prop, type, 8,
 203                     PropModeReplace, (guchar*)str->str, str->len);
 204 }
 205
 206 void prop_erase(Window win, Atom prop)
 207 {
 208     XDeleteProperty(cwmcc_display, win, prop);
 209 }
 210