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

   1 #include "cwmcc_internal.h"
   2 #include "atom.h"
   3
   4 #include <X11/Xutil.h>
   5 #include <glib.h>
   6 #ifdef HAVE_STRING_H
   7 #  include <string.h>
   8 #endif
   9
  10 /* this just isn't used...
  11 static gboolean get(Window win, Atom prop, Atom type, int size,
  12                     guchar **data, gulong num)
  13 {
  14     gboolean ret = FALSE;
  15     int res;
  16     guchar *xdata = NULL;
  17     Atom ret_type;
  18     int ret_size;
  19     gulong ret_items, bytes_left;
  20     long num32 = 32 / size * num; /\* num in 32-bit elements *\/
  21
  22     res = XGetWindowProperty(cwmcc_display, win, prop, 0l, num32,
  23                              FALSE, type, &ret_type, &ret_size,
  24                              &ret_items, &bytes_left, &xdata);
  25     if (res == Success && ret_items && xdata) {
  26         if (ret_size == size && ret_items >= num) {
  27             *data = g_memdup(xdata, num * (size / 8));
  28             ret = TRUE;
  29         }
  30         XFree(xdata);
  31     }
  32     return ret;
  33 }
  34 */
  35
  36 static gboolean get_prealloc(Window win, Atom prop, Atom type, int size,
  37                              guchar *data, gulong num)
  38 {
  39     gboolean ret = FALSE;
  40     int res;
  41     guchar *xdata = NULL;
  42     Atom ret_type;
  43     int ret_size;
  44     gulong ret_items, bytes_left;
  45     long num32 = 32 / size * num; /* num in 32-bit elements */
  46
  47     res = XGetWindowProperty(cwmcc_display, win, prop, 0l, num32,
  48                              FALSE, type, &ret_type, &ret_size,
  49                              &ret_items, &bytes_left, &xdata);
  50     if (res == Success && ret_items && xdata) {
  51         if (ret_size == size && ret_items >= num) {
  52             gulong i;
  53             for (i = 0; i < num; ++i)
  54                 switch (size) {
  55                 case 8:
  56                     data[i] = xdata[i];
  57                     break;
  58                 case 16:
  59                     ((guint16*)data)[i] = ((guint16*)xdata)[i];
  60                     break;
  61                 case 32:
  62                     ((guint32*)data)[i] = ((guint32*)xdata)[i];
  63                     break;
  64                 default:
  65                     g_assert_not_reached(); /* unhandled size */
  66                 }
  67             ret = TRUE;
  68         }
  69         XFree(xdata);
  70     }
  71     return ret;
  72 }
  73
  74 static gboolean get_all(Window win, Atom prop, Atom type, int size,
  75                         guchar **data, gulong *num)
  76 {
  77     gboolean ret = FALSE;
  78     int res;
  79     guchar *xdata = NULL;
  80     Atom ret_type;
  81     int ret_size;
  82     gulong ret_items, bytes_left;
  83
  84     res = XGetWindowProperty(cwmcc_display, win, prop, 0l, G_MAXLONG,
  85                              FALSE, type, &ret_type, &ret_size,
  86                              &ret_items, &bytes_left, &xdata);
  87     if (res == Success) {
  88         if (ret_size == size && ret_items > 0) {
  89             *data = g_malloc(ret_items * (size / 8) + sizeof(guchar*));
  90             g_memmove(*data, xdata, ret_items * (size / 8));
  91             data[ret_items * (size / 8)] = NULL;
  92             *num = ret_items;
  93             ret = TRUE;
  94         }
  95         XFree(xdata);
  96     }
  97     return ret;
  98 }
  99
 100 static gboolean get_stringlist(Window win, Atom prop, char ***list, int *nstr)
 101 {
 102     XTextProperty tprop;
 103     gboolean ret = FALSE;
 104
 105     if (XGetTextProperty(cwmcc_display, win, &tprop, prop) && tprop.nitems) {
 106         if (XTextPropertyToStringList(&tprop, list, nstr))
 107             ret = TRUE;
 108         XFree(tprop.value);
 109     }
 110     return ret;
 111 }
 112
 113 gboolean prop_get32(Window win, Atom prop, Atom type, gulong *ret)
 114 {
 115     return get_prealloc(win, prop, type, 32, (guchar*)ret, 1);
 116 }
 117
 118 gboolean prop_get_array32(Window win, Atom prop, Atom type, gulong **ret,
 119                           gulong *nret)
 120 {
 121     return get_all(win, prop, type, 32, (guchar**)ret, nret);
 122 }
 123
 124 gboolean prop_get_string_locale(Window win, Atom prop, char **data)
 125 {
 126     char **list;
 127     int nstr;
 128
 129     if (get_stringlist(win, prop, &list, &nstr) && nstr) {
 130         *data = g_locale_to_utf8(list[0], -1, NULL, NULL, NULL);
 131         XFreeStringList(list);
 132         if (data) return TRUE;
 133     }
 134     return FALSE;
 135 }
 136
 137 gboolean prop_get_string_utf8(Window win, Atom prop, char **ret)
 138 {
 139     char *raw;
 140     gulong num;
 141
 142     if (get_all(win, prop, CWMCC_ATOM(type, utf8), 8, (guchar**)&raw, &num)) {
 143         *ret = g_strdup(raw); /* grab the first string from the list */
 144         g_free(raw);
 145         return TRUE;
 146     }
 147     return FALSE;
 148 }
 149
 150 gboolean prop_get_strings_utf8(Window win, Atom prop, char ***ret)
 151 {
 152     char *raw, *p;
 153     gulong num, i;
 154
 155     if (get_all(win, prop, CWMCC_ATOM(type, utf8), 8, (guchar**)&raw, &num)) {
 156         *ret = g_new(char*, num + 1);
 157         (*ret)[num] = NULL; /* null terminated list */
 158
 159         p = raw;
 160         for (i = 0; i < num; ++i) {
 161             (*ret)[i] = g_strdup(p);
 162             p = strchr(p, '\0');
 163         }
 164         g_free(raw);
 165         return TRUE;
 166     }
 167     return FALSE;
 168 }
 169
 170 gboolean prop_get_strings_locale(Window win, Atom prop, char ***ret)
 171 {
 172     char *raw, *p;
 173     gulong num, i;
 174
 175     if (get_all(win, prop, CWMCC_ATOM(type, string), 8, (guchar**)&raw, &num)){
 176         *ret = g_new(char*, num + 1);
 177         (*ret)[num] = NULL; /* null terminated list */
 178
 179         p = raw;
 180         for (i = 0; i < num; ++i) {
 181             (*ret)[i] = g_locale_to_utf8(p, -1, NULL, NULL, NULL);
 182             /* make sure translation did not fail */
 183             if (!(*ret)[i]) {
 184                 g_strfreev(*ret); /* free what we did so far */
 185                 break; /* the force is not strong with us */
 186             }
 187             p = strchr(p, '\0');
 188         }
 189         g_free(raw);
 190         if (i == num)
 191             return TRUE;
 192     }
 193     return FALSE;
 194 }
 195
 196 void prop_set_strings_utf8(Window win, Atom prop, char **strs)
 197 {
 198     GString *str;
 199     guint i;
 200
 201     str = g_string_sized_new(0);
 202     for (i = 0; strs[i]; ++i) {
 203         str = g_string_append(str, strs[i]);
 204         str = g_string_append_c(str, '\0');
 205     }
 206     XChangeProperty(cwmcc_display, win, prop, CWMCC_ATOM(type, utf8), 8,
 207                     PropModeReplace, (guchar*)str->str, str->len);
 208 }
 209
 210 void prop_erase(Window win, Atom prop)
 211 {
 212     XDeleteProperty(cwmcc_display, win, prop);
 213 }
 214