openbox/session.c

   1 /* This session code is largely inspired by metacity code. */
   2
   3 #ifndef USE_SM
   4
   5 void session_load(char *path) {}
   6 void session_startup(int argc, char **argv) {}
   7 void session_shutdown() {}
   8
   9 #else
  10
  11 #include "debug.h"
  12 #include "openbox.h"
  13 #include "session.h"
  14 #include "client.h"
  15 #include "prop.h"
  16 #include "parser/parse.h"
  17
  18 #include <time.h>
  19 #include <errno.h>
  20 #include <stdio.h>
  21
  22 #ifdef HAVE_UNISTD_H
  23 #  include <sys/types.h>
  24 #  include <unistd.h>
  25 #endif
  26
  27 #include <X11/SM/SMlib.h>
  28
  29 static SmcConn     sm_conn;
  30 static gchar      *save_file;
  31 static gint        sm_argc;
  32 static gchar     **sm_argv;
  33 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
  34                              Bool shutdown, int interact_style, Bool fast);
  35 static void sm_die(SmcConn conn, SmPointer data);
  36 static void sm_save_complete(SmcConn conn, SmPointer data);
  37 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data);
  38
  39 static void save_commands()
  40 {
  41     SmProp *props[2];
  42     SmProp prop_cmd = { SmCloneCommand, SmLISTofARRAY8, 1, };
  43     SmProp prop_res = { SmRestartCommand, SmLISTofARRAY8, };
  44     gint i, j, n;
  45     gboolean has_id = FALSE, has_file = FALSE;
  46
  47     for (i = 1; !has_id && !has_file && i < sm_argc - 1; ++i) {
  48         if (!has_id && strcmp(sm_argv[i], "--sm-client-id") == 0)
  49             has_id = TRUE;
  50         if (!has_file && strcmp(sm_argv[i], "--sm-save-file") == 0)
  51             has_file = TRUE;
  52     }
  53
  54     n = (has_file ? sm_argc-2 : sm_argc);
  55     n = (has_id ? n-2 : n);
  56     prop_cmd.vals = g_new(SmPropValue, n);
  57     prop_cmd.num_vals = n;
  58     for (i = 0, j = 0; i < sm_argc; ++i, ++j) {
  59         if (strcmp (sm_argv[i], "--sm-client-id") == 0 ||
  60             strcmp (sm_argv[i], "--sm-save-file") == 0) {
  61             ++i, --j; /* skip the next as well, keep j where it is */
  62         } else {
  63             prop_cmd.vals[j].value = sm_argv[i];
  64             prop_cmd.vals[j].length = strlen(sm_argv[i]);
  65         }
  66     }
  67
  68     n = (has_file ? sm_argc : sm_argc+2);
  69     n = (has_id ? n-2 : n);
  70     prop_res.vals = g_new(SmPropValue, n);
  71     prop_res.num_vals = n;
  72     for (i = 0, j = 0; i < sm_argc; ++i, ++j) {
  73         if (strcmp (sm_argv[i], "--sm-client-id") == 0 ||
  74             strcmp (sm_argv[i], "--sm-save-file") == 0) {
  75             ++i, --j; /* skip the next as well, keep j where it is */
  76         } else {
  77             prop_res.vals[j].value = sm_argv[i];
  78             prop_res.vals[j].length = strlen(sm_argv[i]);
  79         }
  80     }
  81
  82     prop_res.vals[j].value = "--sm-save-file";
  83     prop_res.vals[j++].length = strlen("--sm-save-file");
  84     prop_res.vals[j].value = save_file;
  85     prop_res.vals[j++].length = strlen(save_file);
  86
  87     props[0] = &prop_res;
  88     props[1] = &prop_cmd;
  89     SmcSetProperties(sm_conn, 1, props);
  90
  91     g_free(prop_res.vals);
  92     g_free(prop_cmd.vals);
  93 }
  94
  95 void session_startup(int argc, char **argv)
  96 {
  97 #define SM_ERR_LEN 1024
  98
  99     SmcCallbacks cb;
 100     char sm_err[SM_ERR_LEN];
 101
 102     sm_argc = argc;
 103     sm_argv = argv;
 104
 105     cb.save_yourself.callback = sm_save_yourself;
 106     cb.save_yourself.client_data = NULL;
 107
 108     cb.die.callback = sm_die;
 109     cb.die.client_data = NULL;
 110
 111     cb.save_complete.callback = sm_save_complete;
 112     cb.save_complete.client_data = NULL;
 113
 114     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 115     cb.shutdown_cancelled.client_data = NULL;
 116
 117     sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 118                                 SmcSaveYourselfProcMask |
 119                                 SmcDieProcMask |
 120                                 SmcSaveCompleteProcMask |
 121                                 SmcShutdownCancelledProcMask,
 122                                 &cb, ob_sm_id, &ob_sm_id,
 123                                 SM_ERR_LEN, sm_err);
 124     if (sm_conn == NULL)
 125         g_warning("Failed to connect to session manager: %s", sm_err);
 126     else {
 127         SmPropValue val_prog;
 128         SmPropValue val_uid;
 129         SmPropValue val_hint;
 130         SmPropValue val_pri;
 131         SmPropValue val_pid;
 132         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 133         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 134         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 135         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 136         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 137         SmProp *props[6];
 138         gulong hint, pri;
 139         gchar pid[32];
 140
 141         val_prog.value = argv[0];
 142         val_prog.length = strlen(argv[0]);
 143
 144         val_uid.value = g_strdup(g_get_user_name());
 145         val_uid.length = strlen(val_uid.value);
 146
 147         hint = SmRestartImmediately;
 148         val_hint.value = &hint;
 149         val_hint.length = 1;
 150
 151         sprintf(pid, "%ld", (long)getpid());
 152         val_pid.value = pid;
 153         val_pid.length = strlen(pid);
 154
 155         /* priority with gnome-session-manager, low to run before other apps */
 156         pri = 20;
 157         val_pri.value = &pri;
 158         val_pri.length = 1;
 159
 160         prop_prog.vals = &val_prog;
 161         prop_uid.vals = &val_uid;
 162         prop_hint.vals = &val_hint;
 163         prop_pid.vals = &val_pid;
 164         prop_pri.vals = &val_pri;
 165
 166         props[0] = &prop_prog;
 167         props[1] = &prop_uid;
 168         props[2] = &prop_hint;
 169         props[3] = &prop_pid;
 170         props[4] = &prop_pri;
 171
 172         SmcSetProperties(sm_conn, 5, props);
 173
 174         g_free(val_uid.value);
 175
 176         ob_debug("Connected to session manager with id %s\n", ob_sm_id);
 177     }
 178 }
 179
 180 void session_shutdown()
 181 {
 182     g_free(save_file);
 183
 184     if (sm_conn) {
 185         SmPropValue val_hint;
 186         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 187         SmProp *props[1];
 188         gulong hint;
 189
 190         /* when we exit, we want to reset this to a more friendly state */
 191         hint = SmRestartIfRunning;
 192         val_hint.value = &hint;
 193         val_hint.length = 1;
 194
 195         prop_hint.vals = &val_hint;
 196
 197         props[0] = &prop_hint;
 198
 199         SmcSetProperties(sm_conn, 1, props);
 200
 201         SmcCloseConnection(sm_conn, 0, NULL);
 202     }
 203 }
 204
 205 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 206                              Bool shutdown, int interact_style, Bool fast)
 207 {
 208     gchar *filename;
 209     FILE *f;
 210     GList *it;
 211     gboolean success = TRUE;
 212
 213     ob_debug("got SAVE YOURSELF from session manager\n");
 214
 215     /* this algo is from metacity */
 216     filename = g_strdup_printf("%d-%d-%u.obs",
 217                                (int) time(NULL),
 218                                (int) getpid(),
 219                                g_random_int());
 220     save_file = g_build_filename(g_get_home_dir(), ".openbox", "sessions",
 221                                  filename, NULL);
 222     g_free(filename);
 223
 224     f = fopen(save_file, "w");
 225     if (!f) {
 226         success = FALSE;
 227         g_warning("unable to save the session to %s: %s",
 228                   save_file, strerror(errno));
 229     } else {
 230         fprintf(f, "<?xml version=\"1.0\"?>\n\n");
 231         fprintf(f, "<openbox_session id=\"%s\">\n\n", ob_sm_id);
 232
 233         for (it = client_list; it; it = g_list_next(it)) {
 234             guint num;
 235             gint32 *dimensions;
 236             gint prex, prey, prew, preh;
 237             ObClient *c = it->data;
 238
 239             if (!client_normal(c))
 240                 continue;
 241
 242             prex = c->area.x;
 243             prey = c->area.y;
 244             prew = c->area.width;
 245             preh = c->area.height;
 246             if (PROP_GETA32(c->window, openbox_premax, cardinal,
 247                             (guint32**)&dimensions, &num)) {
 248                 if (num == 4) {
 249                     prex = dimensions[0];
 250                     prey = dimensions[1];
 251                     prew = dimensions[2];
 252                     preh = dimensions[3];
 253                 }
 254                 g_free(dimensions);
 255             }
 256
 257             fprintf(f, "\t<window id=\"%s\">\n",
 258                     g_markup_escape_text("XXX", -1));
 259             fprintf(f, "\t\t<name>%s</name>\n",
 260                     g_markup_escape_text(c->name, -1));
 261             fprintf(f, "\t\t<class>%s</class>\n",
 262                     g_markup_escape_text(c->class, -1));
 263             fprintf(f, "\t\t<role>%s</role>\n",
 264                     g_markup_escape_text(c->role, -1));
 265             fprintf(f, "\t\t<desktop>%d</desktop>\n", c->desktop);
 266             fprintf(f, "\t\t<x>%d</x>\n", prex);
 267             fprintf(f, "\t\t<y>%d</y>\n", prey);
 268             fprintf(f, "\t\t<width>%d</width>\n", prew);
 269             fprintf(f, "\t\t<height>%d</height>\n", preh);
 270             if (c->shaded)
 271                 fprintf(f, "\t\t<shaded />\n");
 272             if (c->iconic)
 273                 fprintf(f, "\t\t<iconic />\n");
 274             if (c->skip_pager)
 275                 fprintf(f, "\t\t<skip_pager />\n");
 276             if (c->skip_taskbar)
 277                 fprintf(f, "\t\t<skip_taskbar />\n");
 278             if (c->fullscreen)
 279                 fprintf(f, "\t\t<fullscreen />\n");
 280             if (c->above)
 281                 fprintf(f, "\t\t<above />\n");
 282             if (c->below)
 283                 fprintf(f, "\t\t<below />\n");
 284             if (c->max_horz)
 285                 fprintf(f, "\t\t<max_horz />\n");
 286             if (c->max_vert)
 287                 fprintf(f, "\t\t<max_vert />\n");
 288             fprintf(f, "\t</window>\n\n");
 289         }
 290
 291         fprintf(f, "</openbox_session>\n");
 292
 293         if (fflush(f)) {
 294             success = FALSE;
 295             g_warning("error while saving the session to %s: %s",
 296                       save_file, strerror(errno));
 297         }
 298         fclose(f);
 299     }
 300
 301     save_commands();
 302
 303     SmcSaveYourselfDone(conn, success);
 304 }
 305
 306 static void sm_die(SmcConn conn, SmPointer data)
 307 {
 308     ob_exit();
 309     ob_debug("got DIE from session manager\n");
 310 }
 311
 312 static void sm_save_complete(SmcConn conn, SmPointer data)
 313 {
 314     ob_debug("got SAVE COMPLETE from session manager\n");
 315 }
 316
 317 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 318 {
 319     ob_debug("got SHUTDOWN CANCELLED from session manager\n");
 320 }
 321
 322 void session_load(char *path)
 323 {
 324     xmlDocPtr doc;
 325     xmlNodePtr node, n;
 326     gchar *sm_id;
 327
 328     if (!parse_load(path, "openbox_session", &doc, &node))
 329         return;
 330
 331     if (!parse_attr_string("id", node, &sm_id))
 332         return;
 333     ob_sm_id = g_strdup(sm_id);
 334
 335     node = parse_find_node("window", node->xmlChildrenNode);
 336     while (node) {
 337         gchar *id, *name, *class, *role;
 338         guint desktop;
 339         gint x, y, w, h;
 340         gboolean shaded, iconic, skip_pager, skip_taskbar, fullscreen;
 341         gboolean above, below, max_horz, max_vert;
 342
 343         if (!parse_attr_string("id", node, &id))
 344             goto session_load_bail;
 345         if (!(n = parse_find_node("name", node->xmlChildrenNode)))
 346             goto session_load_bail;
 347         name = parse_string(doc, n);
 348         if (!(n = parse_find_node("class", node->xmlChildrenNode)))
 349             goto session_load_bail;
 350         class = parse_string(doc, n);
 351         if (!(n = parse_find_node("role", node->xmlChildrenNode)))
 352             goto session_load_bail;
 353         role = parse_string(doc, n);
 354         if (!(n = parse_find_node("desktop", node->xmlChildrenNode)))
 355             goto session_load_bail;
 356         desktop = parse_int(doc, n);
 357         if (!(n = parse_find_node("x", node->xmlChildrenNode)))
 358             goto session_load_bail;
 359         x = parse_int(doc, n);
 360         if (!(n = parse_find_node("y", node->xmlChildrenNode)))
 361             goto session_load_bail;
 362         y = parse_int(doc, n);
 363         if (!(n = parse_find_node("width", node->xmlChildrenNode)))
 364             goto session_load_bail;
 365         w = parse_int(doc, n);
 366         if (!(n = parse_find_node("height", node->xmlChildrenNode)))
 367             goto session_load_bail;
 368         h = parse_int(doc, n);
 369
 370         shaded = parse_find_node("shaded", node->xmlChildrenNode) != NULL;
 371         iconic = parse_find_node("iconic", node->xmlChildrenNode) != NULL;
 372         skip_pager = parse_find_node("skip_pager", node->xmlChildrenNode)
 373             != NULL;
 374         skip_taskbar = parse_find_node("skip_taskbar", node->xmlChildrenNode)
 375             != NULL;
 376         fullscreen = parse_find_node("fullscreen", node->xmlChildrenNode)
 377             != NULL;
 378         above = parse_find_node("above", node->xmlChildrenNode) != NULL;
 379         below = parse_find_node("below", node->xmlChildrenNode) != NULL;
 380         max_horz = parse_find_node("max_horz", node->xmlChildrenNode) != NULL;
 381         max_vert = parse_find_node("max_vert", node->xmlChildrenNode) != NULL;
 382
 383         g_message("read session window %s", name);
 384
 385         /* XXX save this */
 386
 387     session_load_bail:
 388
 389         node = parse_find_node("window", node->next);
 390     }
 391
 392     xmlFreeDoc(doc);
 393
 394     unlink(path);
 395 }
 396
 397 #endif