Dogcows Code - chaz/openbox/blob - plugins/placement/history.c

   1 #include "kernel/openbox.h"
   2 #include "kernel/dispatch.h"
   3 #include "kernel/frame.h"
   4 #include "kernel/client.h"
   5 #include "kernel/screen.h"
   6 #include <glib.h>
   7 #include <string.h>
   8 #ifdef HAVE_STDLIB_H
   9 #  include <stdlib.h>
  10 #endif
  11
  12 struct HistoryItem {
  13     char *name;
  14     char *class;
  15     char *role;
  16     int x;
  17     int y;
  18     gboolean placed;
  19 };
  20
  21 static GSList *history = NULL;
  22 static char *history_path = NULL;
  23
  24 static struct HistoryItem *find_history(Client *c)
  25 {
  26     GSList *it;
  27     struct HistoryItem *hi = NULL;
  28
  29     /* find the client */
  30     for (it = history; it != NULL; it = it->next) {
  31         hi = it->data;
  32         g_assert(hi->name != NULL);
  33         g_assert(hi->class != NULL);
  34         g_assert(hi->role != NULL);
  35         g_assert(c->name != NULL);
  36         g_assert(c->class != NULL);
  37         g_assert(c->role != NULL);
  38         if (!strcmp(hi->name, c->name) &&
  39             !strcmp(hi->class, c->class) &&
  40             !strcmp(hi->role, c->role))
  41             return hi;
  42     }
  43     return NULL;
  44 }
  45
  46 gboolean place_history(Client *c)
  47 {
  48     struct HistoryItem *hi;
  49     int x, y;
  50
  51     hi = find_history(c);
  52
  53     if (hi != NULL && !hi->placed) {
  54         hi->placed = TRUE;
  55         if (ob_state != State_Starting) {
  56             x = hi->x;
  57             y = hi->y;
  58
  59             /* make sure the window is on the display */
  60             if (x >= screen_physical_size.width ||
  61                 y >= screen_physical_size.height ||
  62                 x + c->frame->area.width < 1 ||
  63                 y + c->frame->area.height < 1)
  64                 return FALSE;
  65
  66             frame_frame_gravity(c->frame, &x, &y); /* get where the client
  67                                                       should be */
  68             client_configure(c, Corner_TopLeft, x, y,
  69                              c->area.width, c->area.height,
  70                              TRUE, TRUE);
  71         }
  72         return TRUE;
  73     }
  74
  75     return FALSE;
  76 }
  77
  78 static void strip_tabs(char *s)
  79 {
  80     while (*s != '\0') {
  81         if (*s == '\t')
  82             *s = ' ';
  83         ++s;
  84     }
  85 }
  86
  87 static void set_history(Client *c)
  88 {
  89     struct HistoryItem *hi;
  90
  91     hi = find_history(c);
  92
  93     if (hi == NULL) {
  94         hi = g_new(struct HistoryItem, 1);
  95         history = g_slist_append(history, hi);
  96         hi->name = g_strdup(c->name);
  97         strip_tabs(hi->name);
  98         hi->class = g_strdup(c->class);
  99         strip_tabs(hi->class);
 100         hi->role = g_strdup(c->role);
 101         strip_tabs(hi->role);
 102     }
 103
 104     hi->x = c->frame->area.x;
 105     hi->y = c->frame->area.y;
 106     hi->placed = FALSE;
 107 }
 108
 109 static void event(ObEvent *e, void *foo)
 110 {
 111     g_assert(e->type == Event_Client_Destroy);
 112
 113     set_history(e->data.c.client);
 114 }
 115
 116 static void save_history()
 117 {
 118     GError *err = NULL;
 119     GIOChannel *io;
 120     GString *buf;
 121     GSList *it;
 122     struct HistoryItem *hi;
 123     gsize ret;
 124
 125     io = g_io_channel_new_file(history_path, "w", &err);
 126     if (io != NULL) {
 127         for (it = history; it != NULL; it = it->next) {
 128             hi = it->data;
 129             buf = g_string_sized_new(0);
 130             buf=g_string_append(buf, hi->name);
 131             g_string_append_c(buf, '\t');
 132             buf=g_string_append(buf, hi->class);
 133             g_string_append_c(buf, '\t');
 134             buf=g_string_append(buf, hi->role);
 135             g_string_append_c(buf, '\t');
 136             g_string_append_printf(buf, "%d", hi->x);
 137             buf=g_string_append_c(buf, '\t');
 138             g_string_append_printf(buf, "%d", hi->y);
 139             buf=g_string_append_c(buf, '\n');
 140             if (g_io_channel_write_chars(io, buf->str, buf->len, &ret, &err) !=
 141                 G_IO_STATUS_NORMAL)
 142                 break;
 143             g_string_free(buf, TRUE);
 144         }
 145         g_io_channel_unref(io);
 146     }
 147 }
 148
 149 static void load_history()
 150 {
 151     GError *err = NULL;
 152     GIOChannel *io;
 153     char *buf = NULL;
 154     char *b, *c;
 155     struct HistoryItem *hi = NULL;
 156
 157     io = g_io_channel_new_file(history_path, "r", &err);
 158     if (io != NULL) {
 159         while (g_io_channel_read_line(io, &buf, NULL, NULL, &err) ==
 160                G_IO_STATUS_NORMAL) {
 161             hi = g_new0(struct HistoryItem, 1);
 162
 163             b = buf;
 164             if ((c = strchr(b, '\t')) == NULL) break;
 165             *c = '\0';
 166             hi->name = g_strdup(b);
 167
 168             b = c + 1;
 169             if ((c = strchr(b, '\t')) == NULL) break;
 170             *c = '\0';
 171             hi->class = g_strdup(b);
 172
 173             b = c + 1;
 174             if ((c = strchr(b, '\t')) == NULL) break;
 175             *c = '\0';
 176             hi->role = g_strdup(b);
 177
 178             b = c + 1;
 179             if ((c = strchr(b, '\t')) == NULL) break;
 180             *c = '\0';
 181             hi->x = atoi(b);
 182
 183             b = c + 1;
 184             if ((c = strchr(b, '\n')) == NULL) break;
 185             *c = '\0';
 186             hi->y = atoi(b);
 187
 188             hi->placed = FALSE;
 189
 190             g_free(buf);
 191             buf = NULL;
 192
 193             history = g_slist_append(history, hi);
 194             hi = NULL;
 195         }
 196         g_io_channel_unref(io);
 197     }
 198
 199     g_free(buf);
 200
 201     if (hi != NULL) {
 202         g_free(hi->name);
 203         g_free(hi->class);
 204         g_free(hi->role);
 205     }
 206     g_free(hi);
 207 }
 208
 209 void history_startup()
 210 {
 211     char *path;
 212
 213     history = NULL;
 214
 215     path = g_build_filename(g_get_home_dir(), ".openbox", "history", NULL);
 216     history_path = g_strdup_printf("%s.%d", path, ob_screen);
 217     g_free(path);
 218
 219     load_history(); /* load from the historydb file */
 220
 221     dispatch_register(Event_Client_Destroy, (EventHandler)event, NULL);
 222 }
 223
 224 void history_shutdown()
 225 {
 226     GSList *it;
 227
 228     save_history(); /* save to the historydb file */
 229     for (it = history; it != NULL; it = it->next)
 230         g_free(it->data);
 231     g_slist_free(history);
 232
 233     dispatch_register(0, (EventHandler)event, NULL);
 234
 235     g_free(history_path);
 236 }