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     gchar *file_path;
  45     gint i, j, n;
  46     gboolean has_id = FALSE, has_file = FALSE;
  47
  48     for (i = 1; !has_id && !has_file && i < sm_argc - 1; ++i) {
  49         if (!has_id && strcmp(sm_argv[i], "--sm-client-id") == 0)
  50             has_id = TRUE;
  51         if (!has_file && strcmp(sm_argv[i], "--sm-save-file") == 0)
  52             has_file = TRUE;
  53     }
  54
  55     n = (has_file ? sm_argc-2 : sm_argc);
  56     n = (has_id ? n-2 : n);
  57     prop_cmd.vals = g_new(SmPropValue, n);
  58     prop_cmd.num_vals = n;
  59     for (i = 0, j = 0; i < sm_argc; ++i, ++j) {
  60         if (strcmp (sm_argv[i], "--sm-client-id") == 0 ||
  61             strcmp (sm_argv[i], "--sm-save-file") == 0) {
  62             ++i, --j; /* skip the next as well, keep j where it is */
  63         } else {
  64             prop_cmd.vals[j].value = sm_argv[i];
  65             prop_cmd.vals[j].length = strlen(sm_argv[i]);
  66         }
  67     }
  68
  69     n = (has_file ? sm_argc : sm_argc+2);
  70     n = (has_id ? n-2 : n);
  71     prop_res.vals = g_new(SmPropValue, n);
  72     prop_res.num_vals = n;
  73     for (i = 0, j = 0; i < sm_argc; ++i, ++j) {
  74         if (strcmp (sm_argv[i], "--sm-client-id") == 0 ||
  75             strcmp (sm_argv[i], "--sm-save-file") == 0) {
  76             ++i, --j; /* skip the next as well, keep j where it is */
  77         } else {
  78             prop_res.vals[j].value = sm_argv[i];
  79             prop_res.vals[j].length = strlen(sm_argv[i]);
  80         }
  81     }
  82
  83     file_path = g_build_filename(g_get_home_dir(), ".openbox", "sessions",
  84                                  ob_sm_id, NULL);
  85
  86     prop_res.vals[j].value = "--sm-save-file";
  87     prop_res.vals[j++].length = strlen("--sm-save-file");
  88     prop_res.vals[j].value = file_path;
  89     prop_res.vals[j++].length = strlen(file_path);
  90
  91     props[0] = &prop_res;
  92     props[1] = &prop_cmd;
  93     SmcSetProperties(sm_conn, 1, props);
  94
  95     g_free(file_path);
  96     g_free(prop_res.vals);
  97     g_free(prop_cmd.vals);
  98 }
  99
 100 void session_startup(int argc, char **argv)
 101 {
 102 #define SM_ERR_LEN 1024
 103
 104     SmcCallbacks cb;
 105     char sm_err[SM_ERR_LEN];
 106
 107     sm_argc = argc;
 108     sm_argv = argv;
 109
 110     cb.save_yourself.callback = sm_save_yourself;
 111     cb.save_yourself.client_data = NULL;
 112
 113     cb.die.callback = sm_die;
 114     cb.die.client_data = NULL;
 115
 116     cb.save_complete.callback = sm_save_complete;
 117     cb.save_complete.client_data = NULL;
 118
 119     cb.shutdown_cancelled.callback = sm_shutdown_cancelled;
 120     cb.shutdown_cancelled.client_data = NULL;
 121
 122     sm_conn = SmcOpenConnection(NULL, NULL, 1, 0,
 123                                 SmcSaveYourselfProcMask |
 124                                 SmcDieProcMask |
 125                                 SmcSaveCompleteProcMask |
 126                                 SmcShutdownCancelledProcMask,
 127                                 &cb, ob_sm_id, &ob_sm_id,
 128                                 SM_ERR_LEN, sm_err);
 129     if (sm_conn == NULL)
 130         g_warning("Failed to connect to session manager: %s", sm_err);
 131     else {
 132         SmPropValue val_prog;
 133         SmPropValue val_uid;
 134         SmPropValue val_hint;
 135         SmPropValue val_pri;
 136         SmPropValue val_pid;
 137         SmProp prop_prog = { SmProgram, SmARRAY8, 1, };
 138         SmProp prop_uid = { SmUserID, SmARRAY8, 1, };
 139         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 140         SmProp prop_pid = { SmProcessID, SmARRAY8, 1, };
 141         SmProp prop_pri = { "_GSM_Priority", SmCARD8, 1, };
 142         SmProp *props[6];
 143         gulong hint, pri;
 144         gchar pid[32];
 145
 146         val_prog.value = argv[0];
 147         val_prog.length = strlen(argv[0]);
 148
 149         val_uid.value = g_strdup(g_get_user_name());
 150         val_uid.length = strlen(val_uid.value);
 151
 152         hint = SmRestartImmediately;
 153         val_hint.value = &hint;
 154         val_hint.length = 1;
 155
 156         sprintf(pid, "%ld", (long)getpid());
 157         val_pid.value = pid;
 158         val_pid.length = strlen(pid);
 159
 160         /* priority with gnome-session-manager, low to run before other apps */
 161         pri = 20;
 162         val_pri.value = &pri;
 163         val_pri.length = 1;
 164
 165         prop_prog.vals = &val_prog;
 166         prop_uid.vals = &val_uid;
 167         prop_hint.vals = &val_hint;
 168         prop_pid.vals = &val_pid;
 169         prop_pri.vals = &val_pri;
 170
 171         props[0] = &prop_prog;
 172         props[1] = &prop_uid;
 173         props[2] = &prop_hint;
 174         props[3] = &prop_pid;
 175         props[4] = &prop_pri;
 176
 177         SmcSetProperties(sm_conn, 5, props);
 178
 179         g_free(val_uid.value);
 180
 181         ob_debug("Connected to session manager with id %s\n", ob_sm_id);
 182     }
 183 }
 184
 185 void session_shutdown()
 186 {
 187     g_free(save_file);
 188
 189     if (sm_conn) {
 190         SmPropValue val_hint;
 191         SmProp prop_hint = { SmRestartStyleHint, SmCARD8, 1, };
 192         SmProp *props[1];
 193         gulong hint;
 194
 195         /* when we exit, we want to reset this to a more friendly state */
 196         hint = SmRestartIfRunning;
 197         val_hint.value = &hint;
 198         val_hint.length = 1;
 199
 200         prop_hint.vals = &val_hint;
 201
 202         props[0] = &prop_hint;
 203
 204         SmcSetProperties(sm_conn, 1, props);
 205
 206         SmcCloseConnection(sm_conn, 0, NULL);
 207     }
 208 }
 209
 210 static void sm_save_yourself(SmcConn conn, SmPointer data, int save_type,
 211                              Bool shutdown, int interact_style, Bool fast)
 212 {
 213     gchar *filename;
 214     FILE *f;
 215     GList *it;
 216     gboolean success = TRUE;
 217
 218     ob_debug("got SAVE YOURSELF from session manager\n");
 219
 220     /* this algo is from metacity */
 221     filename = g_strdup_printf("%d-%d-%u.obs",
 222                                (int) time(NULL),
 223                                (int) getpid(),
 224                                g_random_int());
 225     save_file = g_build_filename(g_get_home_dir(), ".openbox", "sessions",
 226                                  filename, NULL);
 227     g_free(filename);
 228
 229     f = fopen(save_file, "w");
 230     if (!f) {
 231         success = FALSE;
 232         g_warning("unable to save the session to %s: %s",
 233                   save_file, strerror(errno));
 234     } else {
 235         fprintf(f, "<?xml version=\"1.0\"?>\n\n");
 236         fprintf(f, "<openbox_session id=\"%s\">\n\n", ob_sm_id);
 237
 238         for (it = client_list; it; it = g_list_next(it)) {
 239             guint num;
 240             gint32 *dimensions;
 241             gint prex, prey, prew, preh;
 242             ObClient *c = it->data;
 243
 244             if (!client_normal(c))
 245                 continue;
 246
 247             prex = c->area.x;
 248             prey = c->area.y;
 249             prew = c->area.width;
 250             preh = c->area.height;
 251             if (PROP_GETA32(c->window, openbox_premax, cardinal,
 252                             (guint32**)&dimensions, &num)) {
 253                 if (num == 4) {
 254                     prex = dimensions[0];
 255                     prey = dimensions[1];
 256                     prew = dimensions[2];
 257                     preh = dimensions[3];
 258                 }
 259                 g_free(dimensions);
 260             }
 261
 262             fprintf(f, "\t<window id=\"%s\">\n",
 263                     g_markup_escape_text("XXX", -1));
 264             fprintf(f, "\t\t<name>%s</name>\n",
 265                     g_markup_escape_text(c->name, -1));
 266             fprintf(f, "\t\t<class>%s</class>\n",
 267                     g_markup_escape_text(c->class, -1));
 268             fprintf(f, "\t\t<role>%s</role>\n",
 269                     g_markup_escape_text(c->role, -1));
 270             fprintf(f, "\t\t<desktop>%d</desktop>\n", c->desktop);
 271             fprintf(f, "\t\t<x>%d</x>\n", prex);
 272             fprintf(f, "\t\t<y>%d</y>\n", prey);
 273             fprintf(f, "\t\t<width>%d</width>\n", prew);
 274             fprintf(f, "\t\t<height>%d</height>\n", preh);
 275             if (c->shaded)
 276                 fprintf(f, "\t\t<shaded />\n");
 277             if (c->iconic)
 278                 fprintf(f, "\t\t<iconic />\n");
 279             if (c->skip_pager)
 280                 fprintf(f, "\t\t<skip_pager />\n");
 281             if (c->skip_taskbar)
 282                 fprintf(f, "\t\t<skip_taskbar />\n");
 283             if (c->fullscreen)
 284                 fprintf(f, "\t\t<fullscreen />\n");
 285             if (c->above)
 286                 fprintf(f, "\t\t<above />\n");
 287             if (c->below)
 288                 fprintf(f, "\t\t<below />\n");
 289             if (c->max_horz)
 290                 fprintf(f, "\t\t<max_horz />\n");
 291             if (c->max_vert)
 292                 fprintf(f, "\t\t<max_vert />\n");
 293             fprintf(f, "\t</window>\n\n");
 294         }
 295
 296         fprintf(f, "</openbox_session>\n");
 297
 298         if (fflush(f)) {
 299             success = FALSE;
 300             g_warning("error while saving the session to %s: %s",
 301                       save_file, strerror(errno));
 302         }
 303         fclose(f);
 304     }
 305
 306     save_commands();
 307
 308     SmcSaveYourselfDone(conn, success);
 309 }
 310
 311 static void sm_die(SmcConn conn, SmPointer data)
 312 {
 313     ob_exit();
 314     ob_debug("got DIE from session manager\n");
 315 }
 316
 317 static void sm_save_complete(SmcConn conn, SmPointer data)
 318 {
 319     ob_debug("got SAVE COMPLETE from session manager\n");
 320 }
 321
 322 static void sm_shutdown_cancelled(SmcConn conn, SmPointer data)
 323 {
 324     ob_debug("got SHUTDOWN CANCELLED from session manager\n");
 325 }
 326
 327 void session_load(char *path)
 328 {
 329     xmlDocPtr doc;
 330     xmlNodePtr node, n;
 331     gchar *sm_id;
 332
 333     if (!parse_load(path, "openbox_session", &doc, &node))
 334         return;
 335
 336     if (!parse_attr_string("id", node, &sm_id))
 337         return;
 338     ob_sm_id = g_strdup(sm_id);
 339
 340     node = parse_find_node("window", node->xmlChildrenNode);
 341     while (node) {
 342         gchar *id, *name, *class, *role;
 343         guint desktop;
 344         gint x, y, w, h;
 345         gboolean shaded, iconic, skip_pager, skip_taskbar, fullscreen;
 346         gboolean above, below, max_horz, max_vert;
 347
 348         if (!parse_attr_string("id", node, &id))
 349             goto session_load_bail;
 350         if (!(n = parse_find_node("name", node->xmlChildrenNode)))
 351             goto session_load_bail;
 352         name = parse_string(doc, n);
 353         if (!(n = parse_find_node("class", node->xmlChildrenNode)))
 354             goto session_load_bail;
 355         class = parse_string(doc, n);
 356         if (!(n = parse_find_node("role", node->xmlChildrenNode)))
 357             goto session_load_bail;
 358         role = parse_string(doc, n);
 359         if (!(n = parse_find_node("desktop", node->xmlChildrenNode)))
 360             goto session_load_bail;
 361         desktop = parse_int(doc, n);
 362         if (!(n = parse_find_node("x", node->xmlChildrenNode)))
 363             goto session_load_bail;
 364         x = parse_int(doc, n);
 365         if (!(n = parse_find_node("y", node->xmlChildrenNode)))
 366             goto session_load_bail;
 367         y = parse_int(doc, n);
 368         if (!(n = parse_find_node("width", node->xmlChildrenNode)))
 369             goto session_load_bail;
 370         w = parse_int(doc, n);
 371         if (!(n = parse_find_node("height", node->xmlChildrenNode)))
 372             goto session_load_bail;
 373         h = parse_int(doc, n);
 374
 375         shaded = parse_find_node("shaded", node->xmlChildrenNode) != NULL;
 376         iconic = parse_find_node("iconic", node->xmlChildrenNode) != NULL;
 377         skip_pager = parse_find_node("skip_pager", node->xmlChildrenNode)
 378             != NULL;
 379         skip_taskbar = parse_find_node("skip_taskbar", node->xmlChildrenNode)
 380             != NULL;
 381         fullscreen = parse_find_node("fullscreen", node->xmlChildrenNode)
 382             != NULL;
 383         above = parse_find_node("above", node->xmlChildrenNode) != NULL;
 384         below = parse_find_node("below", node->xmlChildrenNode) != NULL;
 385         max_horz = parse_find_node("max_horz", node->xmlChildrenNode) != NULL;
 386         max_vert = parse_find_node("max_vert", node->xmlChildrenNode) != NULL;
 387
 388         g_message("read session window %s", name);
 389
 390         /* XXX save this */
 391
 392     session_load_bail:
 393
 394         node = parse_find_node("window", node->next);
 395     }
 396
 397     xmlFreeDoc(doc);
 398
 399     unlink(path);
 400 }
 401
 402 #endif