src/session.c

   1 /* session.c - session state handling and R6 style session management
   2  *
   3  *  Copyright (c) 1998 Dan Pascu
   4  *  Copyright (c) 1998, 1999 Alfredo Kojima
   5  *
   6  *  Window Maker window manager
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  21  *  USA.
  22  */
  23
  24
  25 /*
  26  *
  27  * If defined(XSMP_ENABLED) and session manager is running then
  28  *      do normal stuff
  29  * else
  30  *      do pre-R6 session management stuff (save window state and relaunch)
  31  *
  32  * When doing a checkpoint:
  33  *
  34  * = Without XSMP
  35  * Open "Stop"/status Dialog
  36  * Send SAVE_YOURSELF to clients and wait for reply
  37  * Save restart info
  38  * Save state of clients
  39  *
  40  * = With XSMP
  41  * Send checkpoint request to sm
  42  *
  43  * When exiting:
  44  * -------------
  45  *
  46  * = Without XSMP
  47  *
  48  * Open "Exit Now"/status Dialog
  49  * Send SAVE_YOURSELF to clients and wait for reply
  50  * Save restart info
  51  * Save state of clients
  52  * Send DELETE to all clients
  53  * When no more clients are left or user hit "Exit Now", exit
  54  *
  55  * = With XSMP
  56  *
  57  * Send Shutdown request to session manager
  58  * if SaveYourself message received, save state of clients
  59  * if the Die message is received, exit.
  60  */
  61
  62 #include "wconfig.h"
  63
  64 #include <X11/Xlib.h>
  65 #include <X11/Xutil.h>
  66
  67 #ifdef XSMP_ENABLED
  68 #include <X11/SM/SMlib.h>
  69 #endif
  70
  71 #include <stdlib.h>
  72 #include <stdio.h>
  73 #include <string.h>
  74 #include <unistd.h>
  75 #include <time.h>
  76
  77
  78 #include "WindowMaker.h"
  79 #include "screen.h"
  80 #include "window.h"
  81 #include "client.h"
  82 #include "session.h"
  83 #include "wcore.h"
  84 #include "framewin.h"
  85 #include "workspace.h"
  86 #include "funcs.h"
  87 #include "properties.h"
  88 #include "application.h"
  89 #include "appicon.h"
  90
  91
  92 #include "dock.h"
  93
  94 #include "list.h"
  95
  96 #include <proplist.h>
  97
  98 /** Global **/
  99
 100 extern Atom _XA_WM_SAVE_YOURSELF;
 101
 102 extern Time LastTimestamp;
 103
 104 #ifdef XSMP_ENABLED
 105
 106 extern int wScreenCount;
 107
 108 /* requested for SaveYourselfPhase2 */
 109 static Bool sWaitingPhase2 = False;
 110
 111 static SmcConn sSMCConn = NULL;
 112
 113 static WMHandlerID sSMInputHandler = NULL;
 114
 115 /* our SM client ID */
 116 static char *sClientID = NULL;
 117 #endif
 118
 119
 120 static proplist_t sApplications = NULL;
 121 static proplist_t sCommand;
 122 static proplist_t sName;
 123 static proplist_t sHost;
 124 static proplist_t sWorkspace;
 125 static proplist_t sShaded;
 126 static proplist_t sMiniaturized;
 127 static proplist_t sHidden;
 128 static proplist_t sGeometry;
 129
 130 static proplist_t sDock;
 131
 132 static proplist_t sYes, sNo;
 133
 134
 135 static void
 136 make_keys()
 137 {
 138     if (sApplications!=NULL)
 139         return;
 140
 141     sApplications = PLMakeString("Applications");
 142     sCommand = PLMakeString("Command");
 143     sName = PLMakeString("Name");
 144     sHost = PLMakeString("Host");
 145     sWorkspace = PLMakeString("Workspace");
 146     sShaded = PLMakeString("Shaded");
 147     sMiniaturized = PLMakeString("Miniaturized");
 148     sHidden = PLMakeString("Hidden");
 149     sGeometry = PLMakeString("Geometry");
 150     sDock = PLMakeString("Dock");
 151
 152     sYes = PLMakeString("Yes");
 153     sNo = PLMakeString("No");
 154 }
 155
 156
 157
 158 static int
 159 getBool(proplist_t value)
 160 {
 161     char *val;
 162
 163     if (!PLIsString(value)) {
 164         return 0;
 165     }
 166     if (!(val = PLGetString(value))) {
 167         return 0;
 168     }
 169
 170     if ((val[1]=='\0' && (val[0]=='y' || val[0]=='Y'))
 171         || strcasecmp(val, "YES")==0) {
 172
 173         return 1;
 174     } else if ((val[1]=='\0' && (val[0]=='n' || val[0]=='N'))
 175              || strcasecmp(val, "NO")==0) {
 176         return 0;
 177     } else {
 178         int i;
 179         if (sscanf(val, "%i", &i)==1) {
 180             return (i!=0);
 181         } else {
 182             wwarning(_("can't convert \"%s\" to boolean"), val);
 183             return 0;
 184         }
 185     }
 186 }
 187
 188
 189
 190 static proplist_t
 191 makeWindowState(WWindow *wwin, WApplication *wapp)
 192 {
 193     WScreen *scr = wwin->screen_ptr;
 194     Window win;
 195     int argc;
 196     char **argv;
 197     char *class, *instance, *command=NULL, buffer[256];
 198     proplist_t win_state, cmd, name, workspace;
 199     proplist_t shaded, miniaturized, hidden, geometry;
 200     proplist_t dock;
 201
 202     if (wwin->main_window!=None && wwin->main_window!=wwin->client_win)
 203         win = wwin->main_window;
 204     else
 205         win = wwin->client_win;
 206
 207     if (XGetCommand(dpy, win, &argv, &argc) && argc>0) {
 208         command = FlattenStringList(argv, argc);
 209         XFreeStringList(argv);
 210     }
 211     if (!command)
 212         return NULL;
 213
 214     if (PropGetWMClass(win, &class, &instance)) {
 215         if (class && instance)
 216             sprintf(buffer, "%s.%s", instance, class);
 217         else if (instance)
 218             sprintf(buffer, "%s", instance);
 219         else if (class)
 220             sprintf(buffer, ".%s", class);
 221         else
 222             sprintf(buffer, ".");
 223
 224         name = PLMakeString(buffer);
 225         cmd = PLMakeString(command);
 226         /*sprintf(buffer, "%d", wwin->frame->workspace+1);
 227         workspace = PLMakeString(buffer);*/
 228         workspace = PLMakeString(scr->workspaces[wwin->frame->workspace]->name);
 229         shaded = wwin->flags.shaded ? sYes : sNo;
 230         miniaturized = wwin->flags.miniaturized ? sYes : sNo;
 231         hidden = wwin->flags.hidden ? sYes : sNo;
 232         sprintf(buffer, "%ix%i+%i+%i", wwin->client.width, wwin->client.height,
 233                 wwin->frame_x, wwin->frame_y);
 234         geometry = PLMakeString(buffer);
 235
 236         win_state = PLMakeDictionaryFromEntries(sName, name,
 237                                                 sCommand, cmd,
 238                                                 sWorkspace, workspace,
 239                                                 sShaded, shaded,
 240                                                 sMiniaturized, miniaturized,
 241                                                 sHidden, hidden,
 242                                                 sGeometry, geometry,
 243                                                 NULL);
 244
 245         PLRelease(name);
 246         PLRelease(cmd);
 247         PLRelease(workspace);
 248         PLRelease(geometry);
 249         if (wapp && wapp->app_icon && wapp->app_icon->dock) {
 250             int i;
 251             char *name;
 252             if (wapp->app_icon->dock == scr->dock) {
 253                 name="Dock";
 254             } else {
 255                 for(i=0; i<scr->workspace_count; i++)
 256                     if(scr->workspaces[i]->clip == wapp->app_icon->dock)
 257                         break;
 258                 assert( i < scr->workspace_count);
 259                 /*n = i+1;*/
 260                 name = scr->workspaces[i]->name;
 261             }
 262             dock = PLMakeString(name);
 263             PLInsertDictionaryEntry(win_state, sDock, dock);
 264             PLRelease(dock);
 265         }
 266     } else {
 267         win_state = NULL;
 268     }
 269
 270     if (instance) XFree(instance);
 271     if (class) XFree(class);
 272     if (command) free(command);
 273
 274     return win_state;
 275 }
 276
 277
 278 void
 279 wSessionSaveState(WScreen *scr)
 280 {
 281     WWindow *wwin = scr->focused_window;
 282     proplist_t win_info, wks;
 283     proplist_t list=NULL;
 284     LinkedList *wapp_list=NULL;
 285
 286
 287     make_keys();
 288
 289     if (!scr->session_state) {
 290         scr->session_state = PLMakeDictionaryFromEntries(NULL, NULL, NULL);
 291         if (!scr->session_state)
 292             return;
 293     }
 294
 295     list = PLMakeArrayFromElements(NULL);
 296
 297     while (wwin) {
 298         WApplication *wapp=wApplicationOf(wwin->main_window);
 299
 300         if (wwin->transient_for==None && list_find(wapp_list, wapp)==NULL
 301             && !WFLAGP(wwin, dont_save_session)) {
 302             /* A entry for this application was not yet saved. Save one. */
 303             if ((win_info = makeWindowState(wwin, wapp))!=NULL) {
 304                 list = PLAppendArrayElement(list, win_info);
 305                 PLRelease(win_info);
 306                 /* If we were succesful in saving the info for this window
 307                  * add the application the window belongs to, to the
 308                  * application list, so no multiple entries for the same
 309                  * application are saved.
 310                  */
 311                 wapp_list = list_cons(wapp, wapp_list);
 312             }
 313         }
 314         wwin = wwin->prev;
 315     }
 316     PLRemoveDictionaryEntry(scr->session_state, sApplications);
 317     PLInsertDictionaryEntry(scr->session_state, sApplications, list);
 318     PLRelease(list);
 319
 320     wks = PLMakeString(scr->workspaces[scr->current_workspace]->name);
 321     PLInsertDictionaryEntry(scr->session_state, sWorkspace, wks);
 322     PLRelease(wks);
 323
 324     list_free(wapp_list);
 325 }
 326
 327
 328 void
 329 wSessionClearState(WScreen *scr)
 330 {
 331     make_keys();
 332
 333     if (!scr->session_state)
 334         return;
 335
 336     PLRemoveDictionaryEntry(scr->session_state, sApplications);
 337     PLRemoveDictionaryEntry(scr->session_state, sWorkspace);
 338 }
 339
 340
 341 static pid_t
 342 execCommand(WScreen *scr, char *command, char *host)
 343 {
 344     pid_t pid;
 345     char **argv;
 346     int argc;
 347
 348     ParseCommand(command, &argv, &argc);
 349
 350     if (argv==NULL) {
 351         return 0;
 352     }
 353
 354     if ((pid=fork())==0) {
 355         char **args;
 356         int i;
 357
 358         SetupEnvironment(scr);
 359
 360         args = malloc(sizeof(char*)*(argc+1));
 361         if (!args)
 362             exit(111);
 363         for (i=0; i<argc; i++) {
 364             args[i] = argv[i];
 365         }
 366         args[argc] = NULL;
 367         execvp(argv[0], args);
 368         exit(111);
 369     }
 370     while (argc > 0)
 371         free(argv[--argc]);
 372     free(argv);
 373     return pid;
 374 }
 375
 376
 377 static WSavedState*
 378 getWindowState(WScreen *scr, proplist_t win_state)
 379 {
 380     WSavedState *state = wmalloc(sizeof(WSavedState));
 381     proplist_t value;
 382     char *tmp;
 383     int i;
 384
 385     memset(state, 0, sizeof(WSavedState));
 386     state->workspace = -1;
 387     value = PLGetDictionaryEntry(win_state, sWorkspace);
 388     if (value && PLIsString(value)) {
 389         tmp = PLGetString(value);
 390         if (sscanf(tmp, "%i", &state->workspace)!=1) {
 391             state->workspace = -1;
 392             for (i=0; i < scr->workspace_count; i++) {
 393                 if (strcmp(scr->workspaces[i]->name, tmp)==0) {
 394                     state->workspace = i;
 395                     break;
 396                 }
 397             }
 398         } else {
 399             state->workspace--;
 400         }
 401     }
 402     if ((value = PLGetDictionaryEntry(win_state, sShaded))!=NULL)
 403         state->shaded = getBool(value);
 404     if ((value = PLGetDictionaryEntry(win_state, sMiniaturized))!=NULL)
 405         state->miniaturized = getBool(value);
 406     if ((value = PLGetDictionaryEntry(win_state, sHidden))!=NULL)
 407         state->hidden = getBool(value);
 408
 409     value = PLGetDictionaryEntry(win_state, sGeometry);
 410     if (value && PLIsString(value)) {
 411         if (sscanf(PLGetString(value), "%ix%i+%i+%i",
 412                    &state->w, &state->h, &state->x, &state->y)==4 &&
 413             (state->w>0 && state->h>0)) {
 414             state->use_geometry = 1;
 415         } else if (sscanf(PLGetString(value), "%i,%i,%i,%i",
 416                    &state->x, &state->y, &state->w, &state->h)==4 &&
 417             (state->w>0 && state->h>0)) {
 418             /* TODO: remove redundant sscanf() in version 0.20.x */
 419             state->use_geometry = 1;
 420         }
 421
 422     }
 423
 424     return state;
 425 }
 426
 427
 428 #define SAME(x, y) (((x) && (y) && !strcmp((x), (y))) || (!(x) && !(y)))
 429
 430 void
 431 wSessionRestoreState(WScreen *scr)
 432 {
 433     WSavedState *state;
 434     char *instance, *class, *command, *host;
 435     proplist_t win_info, apps, cmd, value;
 436     pid_t pid;
 437     int i, count;
 438     WDock *dock;
 439     WAppIcon *btn=NULL;
 440     int j, n, found;
 441     char *tmp;
 442
 443     make_keys();
 444
 445     if (!scr->session_state)
 446         return;
 447
 448     PLSetStringCmpHook(NULL);
 449
 450     apps = PLGetDictionaryEntry(scr->session_state, sApplications);
 451     if (!apps)
 452         return;
 453
 454     count = PLGetNumberOfElements(apps);
 455     if (count==0)
 456         return;
 457
 458     for (i=0; i<count; i++) {
 459         win_info = PLGetArrayElement(apps, i);
 460
 461         cmd = PLGetDictionaryEntry(win_info, sCommand);
 462         if (!cmd || !PLIsString(cmd) || !(command = PLGetString(cmd))) {
 463             continue;
 464         }
 465
 466         value = PLGetDictionaryEntry(win_info, sName);
 467         if (!value)
 468             continue;
 469
 470         ParseWindowName(value, &instance, &class, "session");
 471         if (!instance && !class)
 472             continue;
 473
 474         value = PLGetDictionaryEntry(win_info, sHost);
 475         if (value && PLIsString(value))
 476             host = PLGetString(value);
 477         else
 478             host = NULL;
 479
 480         state = getWindowState(scr, win_info);
 481
 482         dock = NULL;
 483         value = PLGetDictionaryEntry(win_info, sDock);
 484         if (value && PLIsString(value) && (tmp = PLGetString(value))!=NULL) {
 485             if (sscanf(tmp, "%i", &n)!=1) {
 486                 if (!strcasecmp(tmp, "DOCK")) {
 487                     dock = scr->dock;
 488                 } else {
 489                     for (j=0; j < scr->workspace_count; j++) {
 490                         if (strcmp(scr->workspaces[j]->name, tmp)==0) {
 491                             dock = scr->workspaces[j]->clip;
 492                             break;
 493                         }
 494                     }
 495                 }
 496             } else {
 497                 if (n == 0) {
 498                     dock = scr->dock;
 499                 } else if (n>0 && n<=scr->workspace_count) {
 500                     dock = scr->workspaces[n-1]->clip;
 501                 }
 502             }
 503         }
 504
 505         found = 0;
 506         if (dock!=NULL) {
 507             for (j=0; j<dock->max_icons; j++) {
 508                 btn = dock->icon_array[j];
 509                 if (btn && SAME(instance, btn->wm_instance) &&
 510                     SAME(class, btn->wm_class) &&
 511                     SAME(command, btn->command)) {
 512                     found = 1;
 513                     break;
 514                 }
 515             }
 516         }
 517
 518         if (found) {
 519             wDockLaunchWithState(dock, btn, state);
 520         } else if ((pid = execCommand(scr, command, host)) > 0) {
 521             wWindowAddSavedState(instance, class, command, pid, state);
 522         } else {
 523             free(state);
 524         }
 525
 526         if (instance) free(instance);
 527         if (class) free(class);
 528     }
 529     /* clean up */
 530     PLSetStringCmpHook(StringCompareHook);
 531 }
 532
 533
 534 void
 535 wSessionRestoreLastWorkspace(WScreen *scr)
 536 {
 537     proplist_t wks;
 538     int w, i;
 539     char *tmp;
 540
 541     make_keys();
 542
 543     if (!scr->session_state)
 544         return;
 545
 546     PLSetStringCmpHook(NULL);
 547
 548     wks = PLGetDictionaryEntry(scr->session_state, sWorkspace);
 549     if (!wks || !PLIsString(wks))
 550         return;
 551
 552     tmp = PLGetString(wks);
 553
 554     /* clean up */
 555     PLSetStringCmpHook(StringCompareHook);
 556
 557     if (sscanf(tmp, "%i", &w)!=1) {
 558         w = -1;
 559         for (i=0; i < scr->workspace_count; i++) {
 560             if (strcmp(scr->workspaces[i]->name, tmp)==0) {
 561                 w = i;
 562                 break;
 563             }
 564         }
 565     } else {
 566         w--;
 567     }
 568
 569     if (w!=scr->current_workspace && w<scr->workspace_count) {
 570         wWorkspaceChange(scr, w);
 571     }
 572 }
 573
 574
 575 static void
 576 clearWaitingAckState(WScreen *scr)
 577 {
 578     WWindow *wwin;
 579     WApplication *wapp;
 580
 581     for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
 582         wwin->flags.waiting_save_ack = 0;
 583         if (wwin->main_window != None) {
 584             wapp = wApplicationOf(wwin->main_window);
 585             if (wapp)
 586                 wapp->main_window_desc->flags.waiting_save_ack = 0;
 587         }
 588     }
 589 }
 590
 591
 592 void
 593 wSessionSaveClients(WScreen *scr)
 594 {
 595
 596 }
 597
 598
 599 /*
 600  * With XSMP, this job is done by smproxy
 601  */
 602 void
 603 wSessionSendSaveYourself(WScreen *scr)
 604 {
 605     WWindow *wwin;
 606     int count;
 607
 608     /* freeze client interaction with clients */
 609     XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync,
 610                   CurrentTime);
 611     XGrabPointer(dpy, scr->root_win, False, ButtonPressMask|ButtonReleaseMask,
 612                  GrabModeAsync, GrabModeAsync, scr->root_win, None,
 613                  CurrentTime);
 614
 615     clearWaitingAckState(scr);
 616
 617     count = 0;
 618
 619     /* first send SAVE_YOURSELF for everybody */
 620     for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
 621         WWindow *mainWin;
 622
 623         mainWin = wWindowFor(wwin->main_window);
 624
 625         if (mainWin) {
 626             /* if the client is a multi-window client, only send message
 627              * to the main window */
 628             wwin = mainWin;
 629         }
 630
 631         /* make sure the SAVE_YOURSELF flag is up-to-date */
 632         PropGetProtocols(wwin->client_win, &wwin->protocols);
 633
 634         if (wwin->protocols.SAVE_YOURSELF) {
 635             if (!wwin->flags.waiting_save_ack) {
 636                 wClientSendProtocol(wwin, _XA_WM_SAVE_YOURSELF, LastTimestamp);
 637
 638                 wwin->flags.waiting_save_ack = 1;
 639                 count++;
 640             }
 641         } else {
 642             wwin->flags.waiting_save_ack = 0;
 643         }
 644     }
 645
 646     /* then wait for acknowledge */
 647     while (count > 0) {
 648
 649     }
 650
 651     XUngrabPointer(dpy, CurrentTime);
 652     XUngrabKeyboard(dpy, CurrentTime);
 653     XFlush(dpy);
 654 }
 655
 656
 657 #ifdef XSMP_ENABLED
 658 /*
 659  * With full session management support, the part of WMState
 660  * that store client window state will become obsolete (maybe we can reuse
 661  *                                                      the old code too),
 662  * but we still need to store state info like the dock and workspaces.
 663  * It is better to keep dock/wspace info in WMState because the user
 664  * might want to keep the dock configuration while not wanting to
 665  * resume a previously saved session.
 666  * So, wmaker specific state info can be saved in
 667  * ~/GNUstep/.AppInfo/WindowMaker/statename.state
 668  * Its better to not put it in the defaults directory because:
 669  * - its not a defaults file (having domain names like wmaker0089504baa
 670  * in the defaults directory wouldn't be very neat)
 671  * - this state file is not meant to be edited by users
 672  *
 673  * The old session code will become obsolete. When wmaker is
 674  * compiled with R6 sm support compiled in, itll be better to
 675  * use a totally rewritten state saving code, but we can keep
 676  * the current code for when XSMP_ENABLED is not compiled in.
 677  *
 678  * This will be confusing to old users (well get lots of "SAVE_SESSION broke!"
 679  * messages), but itll be better.
 680  *
 681  * -readme
 682  */
 683
 684
 685 /*
 686  * Windows are identified as:
 687  *      WM_CLASS(instance.class).WM_WINDOW_ROLE
 688  *
 689  * Saved Info:
 690  *
 691  * WM_CLASS.instance
 692  * WM_CLASSS.class
 693  * WM_WINDOW_ROLE
 694  * geometry
 695  * state = (miniaturized, shaded, etc)
 696  * attribute
 697  * workspace #
 698  * app state = (which dock, hidden)
 699  * window shortcut #
 700  */
 701
 702 static proplist_t
 703 makeAppState(WWindow *wwin)
 704 {
 705     WApplication *wapp;
 706     proplist_t state;
 707     WScreen *scr = wwin->screen_ptr;
 708
 709     state = PLMakeArrayWithElements(NULL, NULL);
 710
 711     wapp = wApplicationOf(wwin->main_window);
 712
 713     if (wapp) {
 714         if (wapp->app_icon && wapp->app_icon->dock) {
 715
 716             if (wapp->app_icon->dock == scr->dock) {
 717                 PLAppendArrayElement(state, PLMakeString("Dock"));
 718             } else {
 719                 int i;
 720
 721                 for(i=0; i<scr->workspace_count; i++)
 722                     if(scr->workspaces[i]->clip == wapp->app_icon->dock)
 723                         break;
 724
 725                 assert(i < scr->workspace_count);
 726
 727                 PLAppendArrayElement(state,
 728                                      PLMakeString(scr->workspaces[i]->name));
 729             }
 730         }
 731
 732         PLAppendArrayElement(state, PLMakeString(wapp->hidden ? "1" : "0"));
 733     }
 734
 735     return state;
 736 }
 737
 738
 739 static proplist_t
 740 makeAttributeState(WWindow *wwin)
 741 {
 742     unsigned int data1, data2;
 743     char buffer[256];
 744
 745 #define W_FLAG(wwin, FLAG)      ((wwin)->defined_user_flags.FLAG \
 746                                         ? (wwin)->user_flags.FLAG : -1)
 747
 748     sprintf(buffer, "%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
 749             W_FLAG(no_titlebar),
 750             W_FLAG(no_resizable),
 751             W_FLAG(no_closable),
 752             W_FLAG(no_miniaturizable),
 753             W_FLAG(no_resizebar),
 754             W_FLAG(no_close_button),
 755             W_FLAG(no_miniaturize_button),
 756             /*
 757             W_FLAG(broken_close),
 758             W_FLAG(kill_close),
 759              */
 760             W_FLAG(no_shadeable),
 761             W_FLAG(omnipresent),
 762             W_FLAG(skip_window_list),
 763             W_FLAG(floating),
 764             W_FLAG(sunken),
 765             W_FLAG(no_bind_keys),
 766             W_FLAG(no_bind_mouse),
 767             W_FLAG(no_hide_others),
 768             W_FLAG(no_appicon),
 769             W_FLAG(dont_move_off),
 770             W_FLAG(no_focusable),
 771             W_FLAG(always_user_icon),
 772             W_FLAG(start_miniaturized),
 773             W_FLAG(start_hidden),
 774             W_FLAG(start_maximized),
 775             W_FLAG(dont_save_session),
 776             W_FLAG(emulate_appicon));
 777
 778     return PLMakeString(buffer);
 779 }
 780
 781
 782 static proplist_t
 783 makeClientState(WWindow *wwin)
 784 {
 785     proplist_t state;
 786     proplist_t tmp;
 787     char *str;
 788     char buffer[256];
 789     int i;
 790
 791     state = PLMakeArrayWithElements(NULL, NULL);
 792
 793     /* spec */
 794     PLAppendArrayElement(state, PLMakeString(wwin->wm_instance));
 795     PLAppendArrayElement(state, PLMakeString(wwin->wm_class));
 796
 797     PLAppendArrayElement(state, PLMakeString(str));
 798
 799     /* geometry */
 800     sprintf(buffer, "%i %i %i %i", wwin->frame_x, wwin->frame_y,
 801             wwin->frame->core->width, wwin->frame->core->height);
 802     PLAppendArrayElement(state, PLMakeString(buffer));
 803
 804     /* state */
 805     sprintf(buffer, "%i %i %i", wwin->flags.miniaturized,
 806             wwin->flags.shaded, wwin->flags.maximized);
 807     PLAppendArrayElement(state, PLMakeString(buffer));
 808
 809     /* attributes */
 810     PLAppendArrayElement(state, makeAttributeState(wwin));
 811
 812     /* workspace */
 813     sprintf(buffer, "%i", wwin->frame->workspace);
 814     PLAppendArrayElement(state, PLMakeString(buffer));
 815
 816     /* app state (repeated for all windows of the app) */
 817     PLAppendArrayElement(state, makeAppState(wwin));
 818
 819     /* shortcuts */
 820     tmp = PLMakeArrayWithElements(NULL, NULL);
 821
 822     for (i = 0; i < MAX_WINDOW_SHORTCUTS; i++) {
 823
 824         if (scr->shortcutWindow[i] == wwin) {
 825
 826             sprintf(buffer, "%i", i);
 827             PLAppendArrayElement(tmp, PLMakeString(buffer));
 828         }
 829     }
 830     PLAppendArrayElement(state, tmp);
 831
 832     return state;
 833 }
 834
 835
 836 static void
 837 smSaveYourselfPhase2Proc(SmcConn smc_conn, SmPointer client_data)
 838 {
 839     SmProp props[4];
 840     SmPropValue prop1val, prop2val, prop3val, prop4val;
 841     char **argv = (char**)client_data;
 842     int argc;
 843     int i, j;
 844     Bool ok = False;
 845     char *statefile = NULL;
 846     char *prefix;
 847     Bool gsPrefix = False;
 848     char *discardCmd = NULL;
 849     time_t t;
 850     proplist_t state;
 851
 852 #ifdef DEBUG1
 853     puts("received SaveYourselfPhase2 SM message");
 854 #endif
 855
 856     /* save session state */
 857
 858     /* the file that will contain the state */
 859     prefix = getenv("SM_SAVE_DIR");
 860     if (!prefix) {
 861         prefix = wusergnusteppath();
 862         if (prefix)
 863             gsPrefix = True;
 864     }
 865     if (!prefix) {
 866         prefix = getenv("HOME");
 867     }
 868     if (!prefix)
 869         prefix = ".";
 870
 871     statefile = malloc(strlen(prefix)+64);
 872     if (!statefile) {
 873         wwarning(_("out of memory while saving session state"));
 874         goto fail;
 875     }
 876
 877     t = time();
 878     i = 0;
 879     do {
 880         if (gsPrefix)
 881             sprintf(statefile, "%s/.AppInfo/WindowMaker/wmaker.%l%i.state",
 882                     prefix, t, i);
 883         else
 884             sprintf(statefile, "%s/wmaker.%l%i.state", prefix, t, i);
 885         i++;
 886     } while (access(F_OK, statefile)!=-1);
 887
 888     /* save the states of all windows we're managing */
 889     state = PLMakeArrayFromElements(NULL, NULL);
 890
 891     /*
 892      * Format:
 893      *
 894      * state_file ::= dictionary with version_info ; state
 895      * version_info ::= 'version' = '1';
 896      * state ::= 'state' = array of screen_info
 897      * screen_info ::= array of (screen number, window_info, window_info, ...)
 898      * window_info ::=
 899      */
 900     for (i=0; i<wScreenCount; i++) {
 901         WScreen *scr;
 902         WWindow *wwin;
 903         char buf[32];
 904         proplist_t pscreen;
 905
 906         scr = wScreenWithNumber(i);
 907
 908         sprintf(buf, "%i", scr->screen);
 909         pscreen = PLMakeArrayFromElements(PLMakeString(buf), NULL);
 910
 911         wwin = scr->focused_window;
 912         while (wwin) {
 913             proplist_t pwindow;
 914
 915             pwindow = makeClientState(wwin);
 916             PLAppendArrayElement(pscreen, pwindow);
 917
 918             wwin = wwin->prev;
 919         }
 920
 921         PLAppendArrayElement(state, pscreen);
 922     }
 923
 924     {
 925         proplist_t statefile;
 926
 927         statefile = PLMakeDictionaryFromEntries(PLMakeString("Version"),
 928                                                 PLMakeString("1.0"),
 929
 930                                                 PLMakeString("Screens"),
 931                                                 state,
 932
 933                                                 NULL);
 934
 935         PLSetFilename(statefile, PLMakeString(statefile));
 936         PLSave(statefile, NO);
 937
 938         PLRelease(statefile);
 939     }
 940
 941     /* set the remaining properties that we didn't set at
 942      * startup time */
 943
 944     for (argc=0, i=0; argv[i]!=NULL; i++) {
 945         if (strcmp(argv[i], "-clientid")==0
 946             || strcmp(argv[i], "-restore")==0) {
 947             i++;
 948         } else {
 949             argc++;
 950         }
 951     }
 952
 953     prop[0].name = SmRestartCommand;
 954     prop[0].type = SmLISTofARRAY8;
 955     prop[0].vals = malloc(sizeof(SmPropValue)*(argc+4));
 956     prop[0].num_vals = argc+4;
 957
 958     prop[1].name = SmCloneCommand;
 959     prop[1].type = SmLISTofARRAY8;
 960     prop[1].vals = malloc(sizeof(SmPropValue)*(argc));
 961     prop[1].num_vals = argc;
 962
 963     if (!prop[0].vals || !prop[1].vals) {
 964         wwarning(_("end of memory while saving session state"));
 965         goto fail;
 966     }
 967
 968     for (j=0, i=0; i<argc+4; i++) {
 969         if (strcmp(argv[i], "-clientid")==0
 970             || strcmp(argv[i], "-restore")==0) {
 971             i++;
 972         } else {
 973             prop[0].vals[j].value = argv[i];
 974             prop[0].vals[j].length = strlen(argv[i]);
 975             prop[1].vals[j].value = argv[i];
 976             prop[1].vals[j].length = strlen(argv[i]);
 977             j++;
 978         }
 979     }
 980     prop[0].vals[j].value = "-clientid";
 981     prop[0].vals[j].length = 9;
 982     j++;
 983     prop[0].vals[j].value = sClientID;
 984     prop[0].vals[j].length = strlen(sClientID);
 985     j++;
 986     prop[0].vals[j].value = "-restore";
 987     prop[0].vals[j].length = 11;
 988     j++;
 989     prop[0].vals[j].value = statefile;
 990     prop[0].vals[j].length = strlen(statefile);
 991
 992     discardCmd = malloc(strlen(statefile)+8);
 993     if (!discardCmd)
 994         goto fail;
 995     sprintf(discardCmd, "rm %s", statefile);
 996     prop[2].name = SmDiscardCommand;
 997     prop[2].type = SmARRAY8;
 998     prop[2].vals[0] = discardCmd;
 999     prop[2].num_vals = 1;
1000
1001     SmcSetProperties(sSMCConn, 3, prop);
1002
1003     ok = True;
1004 fail:
1005     SmcSaveYourselfDone(smc_conn, ok);
1006
1007     if (prop[0].vals)
1008         free(prop[0].vals);
1009     if (prop[1].vals)
1010         free(prop[1].vals);
1011     if (discardCmd)
1012         free(discardCmd);
1013
1014     if (!ok) {
1015         remove(statefile);
1016     }
1017     if (statefile)
1018         free(statefile);
1019 }
1020
1021
1022 static void
1023 smSaveYourselfProc(SmcConn smc_conn, SmPointer client_data, int save_type,
1024                    Bool shutdown, int interact_style, Bool fast)
1025 {
1026 #ifdef DEBUG1
1027     puts("received SaveYourself SM message");
1028 #endif
1029
1030     if (!SmcRequestSaveYourselfPhase2(smc_conn, smSaveYourselfPhase2Proc,
1031                                       client_data)) {
1032
1033         SmcSaveYourselfDone(smc_conn, False);
1034         sWaitingPhase2 = False;
1035     } else {
1036 #ifdef DEBUG1
1037         puts("successfull request of SYS phase 2");
1038 #endif
1039         sWaitingPhase2 = True;
1040     }
1041 }
1042
1043
1044 static void
1045 smDieProc(SmcConn smc_conn, SmPointer client_data)
1046 {
1047 #ifdef DEBUG1
1048     puts("received Die SM message");
1049 #endif
1050
1051     wSessionDisconnectManager();
1052
1053     Shutdown(WSExitMode, True);
1054 }
1055
1056
1057
1058 static void
1059 smSaveCompleteProc(SmcConn smc_conn)
1060 {
1061     /* it means that we can resume doing things that can change our state */
1062 #ifdef DEBUG1
1063     puts("received SaveComplete SM message");
1064 #endif
1065 }
1066
1067
1068 static void
1069 smShutdownCancelledProc(SmcConn smc_conn, SmPointer client_data)
1070 {
1071     if (sWaitingPhase2) {
1072
1073         sWaitingPhase2 = False;
1074
1075         SmcSaveYourselfDone(smc_conn, False);
1076     }
1077 }
1078
1079
1080 static void
1081 iceMessageProc(int fd, int mask, void *clientData)
1082 {
1083     IceConn iceConn = (IceConn)clientData;
1084
1085     IceProcessMessages(iceConn, NULL, NULL);
1086 }
1087
1088
1089 static void
1090 iceIOErrorHandler(IceConnection ice_conn)
1091 {
1092     /* This is not fatal but can mean the session manager exited.
1093      * If the session manager exited normally we would get a
1094      * Die message, so this probably means an abnormal exit.
1095      * If the sm was the last client of session, then we'll die
1096      * anyway, otherwise we can continue doing our stuff.
1097      */
1098     wwarning(_("connection to the session manager was lost"));
1099     wSessionDisconnectManager();
1100 }
1101
1102
1103 void
1104 wSessionConnectManager(char **argv, int argc)
1105 {
1106     IceConn iceConn;
1107     char *previous_id = NULL;
1108     char buffer[256];
1109     SmcCallbacks callbacks;
1110     unsigned long mask;
1111     char uid[32];
1112     char pid[32];
1113     SmProp props[4];
1114     SmPropValue prop1val, prop2val, prop3val, prop4val;
1115     char restartStyle;
1116     int i;
1117
1118     mask = SmcSaveYourselfProcMask|SmcDieProcMask|SmcSaveCompleteProcMask
1119         |SmcShutdownCancelledProcMask;
1120
1121     callbacks.save_yourself.callback = smSaveYourselfProc;
1122     callbacks.save_yourself.client_data = argv;
1123
1124     callbacks.die.callback = smDieProc;
1125     callbacks.die.client_data = NULL;
1126
1127     callbacks.save_complete.callback = smSaveCompleteProc;
1128     callbacks.save_complete.client_data = NULL;
1129
1130     callbacks.shutdown_cancelled.callback = smShutdownCancelledProc;
1131     callbacks.shutdown_cancelled.client_data = NULL;
1132
1133     for (i=0; i<argc; i++) {
1134         if (strcmp(argv[i], "-clientid")==0) {
1135             previous_id = argv[i+1];
1136             break;
1137         }
1138     }
1139
1140     /* connect to the session manager */
1141     sSMCConn = SmcOpenConnection(NULL, NULL, SmProtoMajor, SmProtoMinor,
1142                                  mask, &callbacks, previous_id,
1143                                  &sClientID, 255, buffer);
1144     if (!sSMCConn) {
1145         return;
1146     }
1147 #ifdef DEBUG1
1148     puts("connected to the session manager");
1149 #endif
1150
1151 /*    IceSetIOErrorHandler(iceIOErrorHandler);*/
1152
1153     /* check for session manager clients */
1154     iceConn = SmcGetIceConnection(smcConn);
1155
1156     if (fcntl(IceConnectionNumber(iceConn), F_SETFD, FD_CLOEXEC) < 0) {
1157         wsyserror("error setting close-on-exec flag for ICE connection");
1158     }
1159
1160     sSMInputHandler = WMAddInputHandler(IceConnectionNumber(iceConn),
1161                                         WIReadMask, iceMessageProc, iceConn);
1162
1163     /* setup information about ourselves */
1164
1165     /* program name */
1166     prop1val.value = argv[0];
1167     prop1val.length = strlen(argv[0]);
1168     prop[0].name = SmProgram;
1169     prop[0].type = SmARRAY8;
1170     prop[0].num_vals = 1;
1171     prop[0].vals = &prop1val;
1172
1173     /* The XSMP doc from X11R6.1 says it contains the user name,
1174      * but every client implementation I saw places the uid # */
1175     sprintf(uid, "%i", getuid());
1176     prop2val.value = uid;
1177     prop2val.length = strlen(uid);
1178     prop[1].name = SmUserID;
1179     prop[1].type = SmARRAY8;
1180     prop[1].num_vals = 1;
1181     prop[1].vals = &prop2val;
1182
1183     /* Restart style. We should restart only if we were running when
1184      * the previous session finished. */
1185     restartStyle = SmRestartIfRunning;
1186     prop3val.value = &restartStyle;
1187     prop3val.length = 1;
1188     prop[2].name = SmRestartStyleHint;
1189     prop[2].type = SmCARD8;
1190     prop[2].num_vals = 1;
1191     prop[2].vals = &prop3val;
1192
1193     /* Our PID. Not required but might be usefull */
1194     sprintf(pid, "%i", getpid());
1195     prop4val.value = pid;
1196     prop4val.length = strlen(pid);
1197     prop[3].name = SmProcessID;
1198     prop[3].type = SmARRAY8;
1199     prop[3].num_vals = 1;
1200     prop[3].vals = &prop4val;
1201
1202     /* we'll set the rest of the hints later */
1203
1204     SmcSetProperties(sSMCConn, 4, props);
1205
1206 }
1207
1208
1209 void
1210 wSessionDisconnectManager(void)
1211 {
1212     if (sSMCConn) {
1213         WMDeleteInputHandler(sSMInputHandler);
1214         sSMInputHandler = NULL;
1215
1216         SmcCloseConnection(sSMCConn, 0, NULL);
1217         sSMCConn = NULL;
1218     }
1219 }
1220
1221 void
1222 wSessionRequestShutdown(void)
1223 {
1224     /* request a shutdown to the session manager */
1225     if (sSMCConn)
1226         SmcRequestSaveYourself(sSMCConn, SmSaveBoth, True, SmInteractStyleAny,
1227                                False, True);
1228 }
1229
1230
1231 Bool
1232 wSessionIsManaged(void)
1233 {
1234     return sSMCConn!=NULL;
1235 }
1236
1237 #endif /* !XSMP_ENABLED */