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
  95 #include <proplist.h>
  96
  97 /** Global **/
  98
  99 extern Atom _XA_WM_SAVE_YOURSELF;
 100
 101 extern Time LastTimestamp;
 102
 103 #ifdef XSMP_ENABLED
 104
 105 extern int wScreenCount;
 106
 107 /* requested for SaveYourselfPhase2 */
 108 static Bool sWaitingPhase2 = False;
 109
 110 static SmcConn sSMCConn = NULL;
 111
 112 static WMHandlerID sSMInputHandler = NULL;
 113
 114 /* our SM client ID */
 115 static char *sClientID = NULL;
 116 #endif
 117
 118
 119 static proplist_t sApplications = NULL;
 120 static proplist_t sCommand;
 121 static proplist_t sName;
 122 static proplist_t sHost;
 123 static proplist_t sWorkspace;
 124 static proplist_t sShaded;
 125 static proplist_t sMiniaturized;
 126 static proplist_t sHidden;
 127 static proplist_t sGeometry;
 128
 129 static proplist_t sDock;
 130
 131 static proplist_t sYes, sNo;
 132
 133
 134 static void
 135 make_keys()
 136 {
 137     if (sApplications!=NULL)
 138         return;
 139
 140     sApplications = PLMakeString("Applications");
 141     sCommand = PLMakeString("Command");
 142     sName = PLMakeString("Name");
 143     sHost = PLMakeString("Host");
 144     sWorkspace = PLMakeString("Workspace");
 145     sShaded = PLMakeString("Shaded");
 146     sMiniaturized = PLMakeString("Miniaturized");
 147     sHidden = PLMakeString("Hidden");
 148     sGeometry = PLMakeString("Geometry");
 149     sDock = PLMakeString("Dock");
 150
 151     sYes = PLMakeString("Yes");
 152     sNo = PLMakeString("No");
 153 }
 154
 155
 156
 157 static int
 158 getBool(proplist_t value)
 159 {
 160     char *val;
 161
 162     if (!PLIsString(value)) {
 163         return 0;
 164     }
 165     if (!(val = PLGetString(value))) {
 166         return 0;
 167     }
 168
 169     if ((val[1]=='\0' && (val[0]=='y' || val[0]=='Y'))
 170         || strcasecmp(val, "YES")==0) {
 171
 172         return 1;
 173     } else if ((val[1]=='\0' && (val[0]=='n' || val[0]=='N'))
 174              || strcasecmp(val, "NO")==0) {
 175         return 0;
 176     } else {
 177         int i;
 178         if (sscanf(val, "%i", &i)==1) {
 179             return (i!=0);
 180         } else {
 181             wwarning(_("can't convert \"%s\" to boolean"), val);
 182             return 0;
 183         }
 184     }
 185 }
 186
 187
 188
 189 static proplist_t
 190 makeWindowState(WWindow *wwin, WApplication *wapp)
 191 {
 192     WScreen *scr = wwin->screen_ptr;
 193     Window win;
 194     int argc;
 195     char **argv;
 196     char *class, *instance, *command=NULL, buffer[256];
 197     proplist_t win_state, cmd, name, workspace;
 198     proplist_t shaded, miniaturized, hidden, geometry;
 199     proplist_t dock;
 200
 201     if (wwin->main_window!=None && wwin->main_window!=wwin->client_win)
 202         win = wwin->main_window;
 203     else
 204         win = wwin->client_win;
 205
 206     if (XGetCommand(dpy, win, &argv, &argc) && argc>0) {
 207         command = FlattenStringList(argv, argc);
 208         XFreeStringList(argv);
 209     }
 210     if (!command)
 211         return NULL;
 212
 213     if (PropGetWMClass(win, &class, &instance)) {
 214         if (class && instance)
 215             sprintf(buffer, "%s.%s", instance, class);
 216         else if (instance)
 217             sprintf(buffer, "%s", instance);
 218         else if (class)
 219             sprintf(buffer, ".%s", class);
 220         else
 221             sprintf(buffer, ".");
 222
 223         name = PLMakeString(buffer);
 224         cmd = PLMakeString(command);
 225         /*sprintf(buffer, "%d", wwin->frame->workspace+1);
 226         workspace = PLMakeString(buffer);*/
 227         workspace = PLMakeString(scr->workspaces[wwin->frame->workspace]->name);
 228         shaded = wwin->flags.shaded ? sYes : sNo;
 229         miniaturized = wwin->flags.miniaturized ? sYes : sNo;
 230         hidden = wwin->flags.hidden ? sYes : sNo;
 231         sprintf(buffer, "%ix%i+%i+%i", wwin->client.width, wwin->client.height,
 232                 wwin->frame_x, wwin->frame_y);
 233         geometry = PLMakeString(buffer);
 234
 235         win_state = PLMakeDictionaryFromEntries(sName, name,
 236                                                 sCommand, cmd,
 237                                                 sWorkspace, workspace,
 238                                                 sShaded, shaded,
 239                                                 sMiniaturized, miniaturized,
 240                                                 sHidden, hidden,
 241                                                 sGeometry, geometry,
 242                                                 NULL);
 243
 244         PLRelease(name);
 245         PLRelease(cmd);
 246         PLRelease(workspace);
 247         PLRelease(geometry);
 248         if (wapp && wapp->app_icon && wapp->app_icon->dock) {
 249             int i;
 250             char *name;
 251             if (wapp->app_icon->dock == scr->dock) {
 252                 name="Dock";
 253             } else {
 254                 for(i=0; i<scr->workspace_count; i++)
 255                     if(scr->workspaces[i]->clip == wapp->app_icon->dock)
 256                         break;
 257                 assert( i < scr->workspace_count);
 258                 /*n = i+1;*/
 259                 name = scr->workspaces[i]->name;
 260             }
 261             dock = PLMakeString(name);
 262             PLInsertDictionaryEntry(win_state, sDock, dock);
 263             PLRelease(dock);
 264         }
 265     } else {
 266         win_state = NULL;
 267     }
 268
 269     if (instance) XFree(instance);
 270     if (class) XFree(class);
 271     if (command) free(command);
 272
 273     return win_state;
 274 }
 275
 276
 277 void
 278 wSessionSaveState(WScreen *scr)
 279 {
 280     WWindow *wwin = scr->focused_window;
 281     proplist_t win_info, wks;
 282     proplist_t list=NULL;
 283     WMBag *wapp_list=NULL;
 284
 285
 286     make_keys();
 287
 288     if (!scr->session_state) {
 289         scr->session_state = PLMakeDictionaryFromEntries(NULL, NULL, NULL);
 290         if (!scr->session_state)
 291             return;
 292     }
 293
 294     list = PLMakeArrayFromElements(NULL);
 295
 296     while (wwin) {
 297         WApplication *wapp=wApplicationOf(wwin->main_window);
 298
 299         if (wwin->transient_for==None && WMGetFirstInBag(wapp_list, wapp)<0
 300             && !WFLAGP(wwin, dont_save_session)) {
 301             /* A entry for this application was not yet saved. Save one. */
 302             if ((win_info = makeWindowState(wwin, wapp))!=NULL) {
 303                 list = PLAppendArrayElement(list, win_info);
 304                 PLRelease(win_info);
 305                 /* If we were succesful in saving the info for this window
 306                  * add the application the window belongs to, to the
 307                  * application list, so no multiple entries for the same
 308                  * application are saved.
 309                  */
 310                 WMPutInBag(wapp_list, wapp);
 311             }
 312         }
 313         wwin = wwin->prev;
 314     }
 315     PLRemoveDictionaryEntry(scr->session_state, sApplications);
 316     PLInsertDictionaryEntry(scr->session_state, sApplications, list);
 317     PLRelease(list);
 318
 319     wks = PLMakeString(scr->workspaces[scr->current_workspace]->name);
 320     PLInsertDictionaryEntry(scr->session_state, sWorkspace, wks);
 321     PLRelease(wks);
 322
 323     WMFreeBag(wapp_list);
 324 }
 325
 326
 327 void
 328 wSessionClearState(WScreen *scr)
 329 {
 330     make_keys();
 331
 332     if (!scr->session_state)
 333         return;
 334
 335     PLRemoveDictionaryEntry(scr->session_state, sApplications);
 336     PLRemoveDictionaryEntry(scr->session_state, sWorkspace);
 337 }
 338
 339
 340 static pid_t
 341 execCommand(WScreen *scr, char *command, char *host)
 342 {
 343     pid_t pid;
 344     char **argv;
 345     int argc;
 346
 347     ParseCommand(command, &argv, &argc);
 348
 349     if (argv==NULL) {
 350         return 0;
 351     }
 352
 353     if ((pid=fork())==0) {
 354         char **args;
 355         int i;
 356
 357         SetupEnvironment(scr);
 358
 359         args = malloc(sizeof(char*)*(argc+1));
 360         if (!args)
 361             exit(111);
 362         for (i=0; i<argc; i++) {
 363             args[i] = argv[i];
 364         }
 365         args[argc] = NULL;
 366         execvp(argv[0], args);
 367         exit(111);
 368     }
 369     while (argc > 0)
 370         free(argv[--argc]);
 371     free(argv);
 372     return pid;
 373 }
 374
 375
 376 static WSavedState*
 377 getWindowState(WScreen *scr, proplist_t win_state)
 378 {
 379     WSavedState *state = wmalloc(sizeof(WSavedState));
 380     proplist_t value;
 381     char *tmp;
 382     int i;
 383
 384     memset(state, 0, sizeof(WSavedState));
 385     state->workspace = -1;
 386     value = PLGetDictionaryEntry(win_state, sWorkspace);
 387     if (value && PLIsString(value)) {
 388         tmp = PLGetString(value);
 389         if (sscanf(tmp, "%i", &state->workspace)!=1) {
 390             state->workspace = -1;
 391             for (i=0; i < scr->workspace_count; i++) {
 392                 if (strcmp(scr->workspaces[i]->name, tmp)==0) {
 393                     state->workspace = i;
 394                     break;
 395                 }
 396             }
 397         } else {
 398             state->workspace--;
 399         }
 400     }
 401     if ((value = PLGetDictionaryEntry(win_state, sShaded))!=NULL)
 402         state->shaded = getBool(value);
 403     if ((value = PLGetDictionaryEntry(win_state, sMiniaturized))!=NULL)
 404         state->miniaturized = getBool(value);
 405     if ((value = PLGetDictionaryEntry(win_state, sHidden))!=NULL)
 406         state->hidden = getBool(value);
 407
 408     value = PLGetDictionaryEntry(win_state, sGeometry);
 409     if (value && PLIsString(value)) {
 410         if (sscanf(PLGetString(value), "%ix%i+%i+%i",
 411                    &state->w, &state->h, &state->x, &state->y)==4 &&
 412             (state->w>0 && state->h>0)) {
 413             state->use_geometry = 1;
 414         } else if (sscanf(PLGetString(value), "%i,%i,%i,%i",
 415                    &state->x, &state->y, &state->w, &state->h)==4 &&
 416             (state->w>0 && state->h>0)) {
 417             /* TODO: remove redundant sscanf() in version 0.20.x */
 418             state->use_geometry = 1;
 419         }
 420
 421     }
 422
 423     return state;
 424 }
 425
 426
 427 #define SAME(x, y) (((x) && (y) && !strcmp((x), (y))) || (!(x) && !(y)))
 428
 429 void
 430 wSessionRestoreState(WScreen *scr)
 431 {
 432     WSavedState *state;
 433     char *instance, *class, *command, *host;
 434     proplist_t win_info, apps, cmd, value;
 435     pid_t pid;
 436     int i, count;
 437     WDock *dock;
 438     WAppIcon *btn=NULL;
 439     int j, n, found;
 440     char *tmp;
 441
 442     make_keys();
 443
 444     if (!scr->session_state)
 445         return;
 446
 447     PLSetStringCmpHook(NULL);
 448
 449     apps = PLGetDictionaryEntry(scr->session_state, sApplications);
 450     if (!apps)
 451         return;
 452
 453     count = PLGetNumberOfElements(apps);
 454     if (count==0)
 455         return;
 456
 457     for (i=0; i<count; i++) {
 458         win_info = PLGetArrayElement(apps, i);
 459
 460         cmd = PLGetDictionaryEntry(win_info, sCommand);
 461         if (!cmd || !PLIsString(cmd) || !(command = PLGetString(cmd))) {
 462             continue;
 463         }
 464
 465         value = PLGetDictionaryEntry(win_info, sName);
 466         if (!value)
 467             continue;
 468
 469         ParseWindowName(value, &instance, &class, "session");
 470         if (!instance && !class)
 471             continue;
 472
 473         value = PLGetDictionaryEntry(win_info, sHost);
 474         if (value && PLIsString(value))
 475             host = PLGetString(value);
 476         else
 477             host = NULL;
 478
 479         state = getWindowState(scr, win_info);
 480
 481         dock = NULL;
 482         value = PLGetDictionaryEntry(win_info, sDock);
 483         if (value && PLIsString(value) && (tmp = PLGetString(value))!=NULL) {
 484             if (sscanf(tmp, "%i", &n)!=1) {
 485                 if (!strcasecmp(tmp, "DOCK")) {
 486                     dock = scr->dock;
 487                 } else {
 488                     for (j=0; j < scr->workspace_count; j++) {
 489                         if (strcmp(scr->workspaces[j]->name, tmp)==0) {
 490                             dock = scr->workspaces[j]->clip;
 491                             break;
 492                         }
 493                     }
 494                 }
 495             } else {
 496                 if (n == 0) {
 497                     dock = scr->dock;
 498                 } else if (n>0 && n<=scr->workspace_count) {
 499                     dock = scr->workspaces[n-1]->clip;
 500                 }
 501             }
 502         }
 503
 504         found = 0;
 505         if (dock!=NULL) {
 506             for (j=0; j<dock->max_icons; j++) {
 507                 btn = dock->icon_array[j];
 508                 if (btn && SAME(instance, btn->wm_instance) &&
 509                     SAME(class, btn->wm_class) &&
 510                     SAME(command, btn->command)) {
 511                     found = 1;
 512                     break;
 513                 }
 514             }
 515         }
 516
 517         if (found) {
 518             wDockLaunchWithState(dock, btn, state);
 519         } else if ((pid = execCommand(scr, command, host)) > 0) {
 520             wWindowAddSavedState(instance, class, command, pid, state);
 521         } else {
 522             free(state);
 523         }
 524
 525         if (instance) free(instance);
 526         if (class) free(class);
 527     }
 528     /* clean up */
 529     PLSetStringCmpHook(StringCompareHook);
 530 }
 531
 532
 533 void
 534 wSessionRestoreLastWorkspace(WScreen *scr)
 535 {
 536     proplist_t wks;
 537     int w, i;
 538     char *tmp;
 539
 540     make_keys();
 541
 542     if (!scr->session_state)
 543         return;
 544
 545     PLSetStringCmpHook(NULL);
 546
 547     wks = PLGetDictionaryEntry(scr->session_state, sWorkspace);
 548     if (!wks || !PLIsString(wks))
 549         return;
 550
 551     tmp = PLGetString(wks);
 552
 553     /* clean up */
 554     PLSetStringCmpHook(StringCompareHook);
 555
 556     if (sscanf(tmp, "%i", &w)!=1) {
 557         w = -1;
 558         for (i=0; i < scr->workspace_count; i++) {
 559             if (strcmp(scr->workspaces[i]->name, tmp)==0) {
 560                 w = i;
 561                 break;
 562             }
 563         }
 564     } else {
 565         w--;
 566     }
 567
 568     if (w!=scr->current_workspace && w<scr->workspace_count) {
 569         wWorkspaceChange(scr, w);
 570     }
 571 }
 572
 573
 574 static void
 575 clearWaitingAckState(WScreen *scr)
 576 {
 577     WWindow *wwin;
 578     WApplication *wapp;
 579
 580     for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
 581         wwin->flags.waiting_save_ack = 0;
 582         if (wwin->main_window != None) {
 583             wapp = wApplicationOf(wwin->main_window);
 584             if (wapp)
 585                 wapp->main_window_desc->flags.waiting_save_ack = 0;
 586         }
 587     }
 588 }
 589
 590
 591 void
 592 wSessionSaveClients(WScreen *scr)
 593 {
 594
 595 }
 596
 597
 598 /*
 599  * With XSMP, this job is done by smproxy
 600  */
 601 void
 602 wSessionSendSaveYourself(WScreen *scr)
 603 {
 604     WWindow *wwin;
 605     int count;
 606
 607     /* freeze client interaction with clients */
 608     XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync,
 609                   CurrentTime);
 610     XGrabPointer(dpy, scr->root_win, False, ButtonPressMask|ButtonReleaseMask,
 611                  GrabModeAsync, GrabModeAsync, scr->root_win, None,
 612                  CurrentTime);
 613
 614     clearWaitingAckState(scr);
 615
 616     count = 0;
 617
 618     /* first send SAVE_YOURSELF for everybody */
 619     for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
 620         WWindow *mainWin;
 621
 622         mainWin = wWindowFor(wwin->main_window);
 623
 624         if (mainWin) {
 625             /* if the client is a multi-window client, only send message
 626              * to the main window */
 627             wwin = mainWin;
 628         }
 629
 630         /* make sure the SAVE_YOURSELF flag is up-to-date */
 631         PropGetProtocols(wwin->client_win, &wwin->protocols);
 632
 633         if (wwin->protocols.SAVE_YOURSELF) {
 634             if (!wwin->flags.waiting_save_ack) {
 635                 wClientSendProtocol(wwin, _XA_WM_SAVE_YOURSELF, LastTimestamp);
 636
 637                 wwin->flags.waiting_save_ack = 1;
 638                 count++;
 639             }
 640         } else {
 641             wwin->flags.waiting_save_ack = 0;
 642         }
 643     }
 644
 645     /* then wait for acknowledge */
 646     while (count > 0) {
 647
 648     }
 649
 650     XUngrabPointer(dpy, CurrentTime);
 651     XUngrabKeyboard(dpy, CurrentTime);
 652     XFlush(dpy);
 653 }
 654
 655
 656 #ifdef XSMP_ENABLED
 657 /*
 658  * With full session management support, the part of WMState
 659  * that store client window state will become obsolete (maybe we can reuse
 660  *                                                      the old code too),
 661  * but we still need to store state info like the dock and workspaces.
 662  * It is better to keep dock/wspace info in WMState because the user
 663  * might want to keep the dock configuration while not wanting to
 664  * resume a previously saved session.
 665  * So, wmaker specific state info can be saved in
 666  * ~/GNUstep/.AppInfo/WindowMaker/statename.state
 667  * Its better to not put it in the defaults directory because:
 668  * - its not a defaults file (having domain names like wmaker0089504baa
 669  * in the defaults directory wouldn't be very neat)
 670  * - this state file is not meant to be edited by users
 671  *
 672  * The old session code will become obsolete. When wmaker is
 673  * compiled with R6 sm support compiled in, itll be better to
 674  * use a totally rewritten state saving code, but we can keep
 675  * the current code for when XSMP_ENABLED is not compiled in.
 676  *
 677  * This will be confusing to old users (well get lots of "SAVE_SESSION broke!"
 678  * messages), but itll be better.
 679  *
 680  * -readme
 681  */
 682
 683
 684 static char*
 685 getWindowRole(Window window)
 686 {
 687     XTextProperty prop;
 688     static Atom atom = 0;
 689
 690     if (!atom)
 691         atom = XInternAtom(dpy, "WM_WINDOW_ROLE", False);
 692
 693     if (XGetTextProperty(dpy, window, &prop, atom)) {
 694         if (prop.encoding == XA_STRING && prop.format == 8 && prop.nitems > 0)
 695             return prop.value;
 696     }
 697
 698     return NULL;
 699 }
 700
 701
 702 /*
 703  *
 704  * Saved Info:
 705  *
 706  * WM_WINDOW_ROLE
 707  *
 708  * WM_CLASS.instance
 709  * WM_CLASS.class
 710  * WM_NAME
 711  * WM_COMMAND
 712  *
 713  * geometry
 714  * state = (miniaturized, shaded, etc)
 715  * attribute
 716  * workspace #
 717  * app state = (which dock, hidden)
 718  * window shortcut #
 719  */
 720
 721 static proplist_t
 722 makeAppState(WWindow *wwin)
 723 {
 724     WApplication *wapp;
 725     proplist_t state;
 726     WScreen *scr = wwin->screen_ptr;
 727
 728     state = PLMakeArrayWithElements(NULL, NULL);
 729
 730     wapp = wApplicationOf(wwin->main_window);
 731
 732     if (wapp) {
 733         if (wapp->app_icon && wapp->app_icon->dock) {
 734
 735             if (wapp->app_icon->dock == scr->dock) {
 736                 PLAppendArrayElement(state, PLMakeString("Dock"));
 737             } else {
 738                 int i;
 739
 740                 for(i=0; i<scr->workspace_count; i++)
 741                     if(scr->workspaces[i]->clip == wapp->app_icon->dock)
 742                         break;
 743
 744                 assert(i < scr->workspace_count);
 745
 746                 PLAppendArrayElement(state,
 747                                      PLMakeString(scr->workspaces[i]->name));
 748             }
 749         }
 750
 751         PLAppendArrayElement(state, PLMakeString(wapp->hidden ? "1" : "0"));
 752     }
 753
 754     return state;
 755 }
 756
 757
 758
 759 Bool
 760 wSessionGetStateFor(WWindow *wwin, WSessionData *state)
 761 {
 762     char *str;
 763     proplist_t slist;
 764     proplist_t elem;
 765     proplist_t value;
 766     int index = 0;
 767
 768     index = 3;
 769
 770     /* geometry */
 771     value = PLGetArrayElement(slist, index++);
 772     str = PLGetString(value);
 773
 774     sscanf(str, "%i %i %i %i %i %i", &state->x, &state->y,
 775            &state->width, &state->height,
 776            &state->user_changed_width, &state->user_changed_height);
 777
 778
 779     /* state */
 780     value = PLGetArrayElement(slist, index++);
 781     str = PLGetString(value);
 782
 783     sscanf(str, "%i %i %i", &state->miniaturized, &state->shaded,
 784            &state->maximized);
 785
 786
 787     /* attributes */
 788     value = PLGetArrayElement(slist, index++);
 789     str = PLGetString(value);
 790
 791     getAttributeState(str, &state->mflags, &state->flags);
 792
 793
 794     /* workspace */
 795     value = PLGetArrayElement(slist, index++);
 796     str = PLGetString(value);
 797
 798     sscanf(str, "%i", &state->workspace);
 799
 800
 801     /* app state (repeated for all windows of the app) */
 802     value = PLGetArrayElement(slist, index++);
 803     str = PLGetString(value);
 804
 805     /* ???? */
 806
 807     /* shortcuts */
 808     value = PLGetArrayElement(slist, index++);
 809     str = PLGetString(value);
 810
 811     sscanf(str, "%i", &state->shortcuts);
 812 }
 813
 814
 815
 816 static proplist_t
 817 makeAttributeState(WWindow *wwin)
 818 {
 819     unsigned int data1, data2;
 820     char buffer[256];
 821
 822 #define W_FLAG(wwin, FLAG)      ((wwin)->defined_user_flags.FLAG \
 823                                         ? (wwin)->user_flags.FLAG : -1)
 824
 825     sprintf(buffer,
 826             "%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
 827             W_FLAG(no_titlebar),
 828             W_FLAG(no_resizable),
 829             W_FLAG(no_closable),
 830             W_FLAG(no_miniaturizable),
 831             W_FLAG(no_resizebar),
 832             W_FLAG(no_close_button),
 833             W_FLAG(no_miniaturize_button),
 834             /*
 835             W_FLAG(broken_close),
 836             W_FLAG(kill_close),
 837              */
 838             W_FLAG(no_shadeable),
 839             W_FLAG(omnipresent),
 840             W_FLAG(skip_window_list),
 841             W_FLAG(floating),
 842             W_FLAG(sunken),
 843             W_FLAG(no_bind_keys),
 844             W_FLAG(no_bind_mouse),
 845             W_FLAG(no_hide_others),
 846             W_FLAG(no_appicon),
 847             W_FLAG(dont_move_off),
 848             W_FLAG(no_focusable),
 849             W_FLAG(always_user_icon),
 850             W_FLAG(start_miniaturized),
 851             W_FLAG(start_hidden),
 852             W_FLAG(start_maximized),
 853             W_FLAG(dont_save_session),
 854             W_FLAG(emulate_appicon));
 855
 856     return PLMakeString(buffer);
 857 }
 858
 859
 860 static void
 861 appendStringInArray(proplist_t array, char *str)
 862 {
 863     proplist_t val;
 864
 865     val = PLMakeString(str);
 866     PLAppendArrayElement(array, val);
 867     PLRelease(val);
 868 }
 869
 870
 871 static proplist_t
 872 makeClientState(WWindow *wwin)
 873 {
 874     proplist_t state;
 875     proplist_t tmp;
 876     char *str;
 877     char buffer[256];
 878     int i;
 879     unsigned shortcuts;
 880
 881     state = PLMakeArrayWithElements(NULL, NULL);
 882
 883     /* WM_WINDOW_ROLE */
 884     str = getWindowRole(wwin->client_win);
 885     if (!str)
 886         appendStringInArray(state, "");
 887     else {
 888         appendStringInArray(state, str);
 889         XFree(str);
 890     }
 891
 892     /* WM_CLASS.instance */
 893     appendStringInArray(state, wwin->wm_instance);
 894
 895     /* WM_CLASS.class */
 896     appendStringInArray(state, wwin->wm_class);
 897
 898     /* WM_NAME */
 899     if (wwin->flags.wm_name_changed)
 900         appendStringInArray(state, "");
 901     else
 902         appendStringInArray(state, wwin->frame->name);
 903
 904     /* geometry */
 905     sprintf(buffer, "%i %i %i %i %i %i", wwin->frame_x, wwin->frame_y,
 906             wwin->client.width, wwin->client.height,
 907             wwin->flags.user_changed_width, wwin->flags.user_changed_height);
 908     appendStringInArray(state, buffer);
 909
 910     /* state */
 911     sprintf(buffer, "%i %i %i", wwin->flags.miniaturized,
 912             wwin->flags.shaded, wwin->flags.maximized);
 913     appendStringInArray(state, buffer);
 914
 915     /* attributes */
 916     tmp = makeAttributeState(wwin);
 917     PLAppendArrayElement(state, tmp);
 918     PLRelease(tmp);
 919
 920     /* workspace */
 921     sprintf(buffer, "%i", wwin->frame->workspace);
 922     appendStringInArray(state, buffer);
 923
 924     /* app state (repeated for all windows of the app) */
 925     tmp = makeAppState(wwin);
 926     PLAppendArrayElement(state, tmp);
 927     PLRelease(tmp);
 928
 929     /* shortcuts */
 930     shortcuts = 0;
 931     for (i = 0; i < MAX_WINDOW_SHORTCUTS; i++) {
 932         if (scr->shortcutWindow[i] == wwin) {
 933             shortcuts |= 1 << i;
 934         }
 935     }
 936     sprintf(buffer, "%ui", shortcuts);
 937     appendStringInArray(tmp, buffer);
 938
 939     return state;
 940 }
 941
 942
 943 static void
 944 smSaveYourselfPhase2Proc(SmcConn smc_conn, SmPointer client_data)
 945 {
 946     SmProp props[4];
 947     SmPropValue prop1val, prop2val, prop3val, prop4val;
 948     char **argv = (char**)client_data;
 949     int argc;
 950     int i, j;
 951     Bool ok = False;
 952     char *statefile = NULL;
 953     char *prefix;
 954     Bool gsPrefix = False;
 955     char *discardCmd = NULL;
 956     time_t t;
 957     proplist_t state;
 958
 959 #ifdef DEBUG1
 960     puts("received SaveYourselfPhase2 SM message");
 961 #endif
 962
 963     /* save session state */
 964
 965     /* the file that will contain the state */
 966     prefix = getenv("SM_SAVE_DIR");
 967     if (!prefix) {
 968         prefix = wusergnusteppath();
 969         if (prefix)
 970             gsPrefix = True;
 971     }
 972     if (!prefix) {
 973         prefix = getenv("HOME");
 974     }
 975     if (!prefix)
 976         prefix = ".";
 977
 978     statefile = malloc(strlen(prefix)+64);
 979     if (!statefile) {
 980         wwarning(_("out of memory while saving session state"));
 981         goto fail;
 982     }
 983
 984     t = time();
 985     i = 0;
 986     do {
 987         if (gsPrefix)
 988             sprintf(statefile, "%s/.AppInfo/WindowMaker/wmaker.%l%i.state",
 989                     prefix, t, i);
 990         else
 991             sprintf(statefile, "%s/wmaker.%l%i.state", prefix, t, i);
 992         i++;
 993     } while (access(F_OK, statefile)!=-1);
 994
 995     /* save the states of all windows we're managing */
 996     state = PLMakeArrayFromElements(NULL, NULL);
 997
 998     /*
 999      * Format:
1000      *
1001      * state_file ::= dictionary with version_info ; state
1002      * version_info ::= 'version' = '1';
1003      * state ::= 'state' = array of screen_info
1004      * screen_info ::= array of (screen number, window_info, window_info, ...)
1005      * window_info ::=
1006      */
1007     for (i=0; i<wScreenCount; i++) {
1008         WScreen *scr;
1009         WWindow *wwin;
1010         char buf[32];
1011         proplist_t pscreen;
1012
1013         scr = wScreenWithNumber(i);
1014
1015         sprintf(buf, "%i", scr->screen);
1016         pscreen = PLMakeArrayFromElements(PLMakeString(buf), NULL);
1017
1018         wwin = scr->focused_window;
1019         while (wwin) {
1020             proplist_t pwindow;
1021
1022             pwindow = makeClientState(wwin);
1023             PLAppendArrayElement(pscreen, pwindow);
1024
1025             wwin = wwin->prev;
1026         }
1027
1028         PLAppendArrayElement(state, pscreen);
1029     }
1030
1031     {
1032         proplist_t statefile;
1033
1034         statefile = PLMakeDictionaryFromEntries(PLMakeString("Version"),
1035                                                 PLMakeString("1.0"),
1036
1037                                                 PLMakeString("Screens"),
1038                                                 state,
1039
1040                                                 NULL);
1041
1042         PLSetFilename(statefile, PLMakeString(statefile));
1043         PLSave(statefile, NO);
1044
1045         PLRelease(statefile);
1046     }
1047
1048     /* set the remaining properties that we didn't set at
1049      * startup time */
1050
1051     for (argc=0, i=0; argv[i]!=NULL; i++) {
1052         if (strcmp(argv[i], "-clientid")==0
1053             || strcmp(argv[i], "-restore")==0) {
1054             i++;
1055         } else {
1056             argc++;
1057         }
1058     }
1059
1060     prop[0].name = SmRestartCommand;
1061     prop[0].type = SmLISTofARRAY8;
1062     prop[0].vals = malloc(sizeof(SmPropValue)*(argc+4));
1063     prop[0].num_vals = argc+4;
1064
1065     prop[1].name = SmCloneCommand;
1066     prop[1].type = SmLISTofARRAY8;
1067     prop[1].vals = malloc(sizeof(SmPropValue)*(argc));
1068     prop[1].num_vals = argc;
1069
1070     if (!prop[0].vals || !prop[1].vals) {
1071         wwarning(_("end of memory while saving session state"));
1072         goto fail;
1073     }
1074
1075     for (j=0, i=0; i<argc+4; i++) {
1076         if (strcmp(argv[i], "-clientid")==0
1077             || strcmp(argv[i], "-restore")==0) {
1078             i++;
1079         } else {
1080             prop[0].vals[j].value = argv[i];
1081             prop[0].vals[j].length = strlen(argv[i]);
1082             prop[1].vals[j].value = argv[i];
1083             prop[1].vals[j].length = strlen(argv[i]);
1084             j++;
1085         }
1086     }
1087     prop[0].vals[j].value = "-clientid";
1088     prop[0].vals[j].length = 9;
1089     j++;
1090     prop[0].vals[j].value = sClientID;
1091     prop[0].vals[j].length = strlen(sClientID);
1092     j++;
1093     prop[0].vals[j].value = "-restore";
1094     prop[0].vals[j].length = 11;
1095     j++;
1096     prop[0].vals[j].value = statefile;
1097     prop[0].vals[j].length = strlen(statefile);
1098
1099     discardCmd = malloc(strlen(statefile)+8);
1100     if (!discardCmd)
1101         goto fail;
1102     sprintf(discardCmd, "rm %s", statefile);
1103     prop[2].name = SmDiscardCommand;
1104     prop[2].type = SmARRAY8;
1105     prop[2].vals[0] = discardCmd;
1106     prop[2].num_vals = 1;
1107
1108     SmcSetProperties(sSMCConn, 3, prop);
1109
1110     ok = True;
1111 fail:
1112     SmcSaveYourselfDone(smc_conn, ok);
1113
1114     if (prop[0].vals)
1115         free(prop[0].vals);
1116     if (prop[1].vals)
1117         free(prop[1].vals);
1118     if (discardCmd)
1119         free(discardCmd);
1120
1121     if (!ok) {
1122         remove(statefile);
1123     }
1124     if (statefile)
1125         free(statefile);
1126 }
1127
1128
1129 static void
1130 smSaveYourselfProc(SmcConn smc_conn, SmPointer client_data, int save_type,
1131                    Bool shutdown, int interact_style, Bool fast)
1132 {
1133 #ifdef DEBUG1
1134     puts("received SaveYourself SM message");
1135 #endif
1136
1137     if (!SmcRequestSaveYourselfPhase2(smc_conn, smSaveYourselfPhase2Proc,
1138                                       client_data)) {
1139
1140         SmcSaveYourselfDone(smc_conn, False);
1141         sWaitingPhase2 = False;
1142     } else {
1143 #ifdef DEBUG1
1144         puts("successfull request of SYS phase 2");
1145 #endif
1146         sWaitingPhase2 = True;
1147     }
1148 }
1149
1150
1151 static void
1152 smDieProc(SmcConn smc_conn, SmPointer client_data)
1153 {
1154 #ifdef DEBUG1
1155     puts("received Die SM message");
1156 #endif
1157
1158     wSessionDisconnectManager();
1159
1160     Shutdown(WSExitMode, True);
1161 }
1162
1163
1164
1165 static void
1166 smSaveCompleteProc(SmcConn smc_conn)
1167 {
1168     /* it means that we can resume doing things that can change our state */
1169 #ifdef DEBUG1
1170     puts("received SaveComplete SM message");
1171 #endif
1172 }
1173
1174
1175 static void
1176 smShutdownCancelledProc(SmcConn smc_conn, SmPointer client_data)
1177 {
1178     if (sWaitingPhase2) {
1179
1180         sWaitingPhase2 = False;
1181
1182         SmcSaveYourselfDone(smc_conn, False);
1183     }
1184 }
1185
1186
1187 static void
1188 iceMessageProc(int fd, int mask, void *clientData)
1189 {
1190     IceConn iceConn = (IceConn)clientData;
1191
1192     IceProcessMessages(iceConn, NULL, NULL);
1193 }
1194
1195
1196 static void
1197 iceIOErrorHandler(IceConnection ice_conn)
1198 {
1199     /* This is not fatal but can mean the session manager exited.
1200      * If the session manager exited normally we would get a
1201      * Die message, so this probably means an abnormal exit.
1202      * If the sm was the last client of session, then we'll die
1203      * anyway, otherwise we can continue doing our stuff.
1204      */
1205     wwarning(_("connection to the session manager was lost"));
1206     wSessionDisconnectManager();
1207 }
1208
1209
1210 void
1211 wSessionConnectManager(char **argv, int argc)
1212 {
1213     IceConn iceConn;
1214     char *previous_id = NULL;
1215     char buffer[256];
1216     SmcCallbacks callbacks;
1217     unsigned long mask;
1218     char uid[32];
1219     char pid[32];
1220     SmProp props[4];
1221     SmPropValue prop1val, prop2val, prop3val, prop4val;
1222     char restartStyle;
1223     int i;
1224
1225     mask = SmcSaveYourselfProcMask|SmcDieProcMask|SmcSaveCompleteProcMask
1226         |SmcShutdownCancelledProcMask;
1227
1228     callbacks.save_yourself.callback = smSaveYourselfProc;
1229     callbacks.save_yourself.client_data = argv;
1230
1231     callbacks.die.callback = smDieProc;
1232     callbacks.die.client_data = NULL;
1233
1234     callbacks.save_complete.callback = smSaveCompleteProc;
1235     callbacks.save_complete.client_data = NULL;
1236
1237     callbacks.shutdown_cancelled.callback = smShutdownCancelledProc;
1238     callbacks.shutdown_cancelled.client_data = NULL;
1239
1240     for (i=0; i<argc; i++) {
1241         if (strcmp(argv[i], "-clientid")==0) {
1242             previous_id = argv[i+1];
1243             break;
1244         }
1245     }
1246
1247     /* connect to the session manager */
1248     sSMCConn = SmcOpenConnection(NULL, NULL, SmProtoMajor, SmProtoMinor,
1249                                  mask, &callbacks, previous_id,
1250                                  &sClientID, 255, buffer);
1251     if (!sSMCConn) {
1252         return;
1253     }
1254 #ifdef DEBUG1
1255     puts("connected to the session manager");
1256 #endif
1257
1258 /*    IceSetIOErrorHandler(iceIOErrorHandler);*/
1259
1260     /* check for session manager clients */
1261     iceConn = SmcGetIceConnection(smcConn);
1262
1263     if (fcntl(IceConnectionNumber(iceConn), F_SETFD, FD_CLOEXEC) < 0) {
1264         wsyserror("error setting close-on-exec flag for ICE connection");
1265     }
1266
1267     sSMInputHandler = WMAddInputHandler(IceConnectionNumber(iceConn),
1268                                         WIReadMask, iceMessageProc, iceConn);
1269
1270     /* setup information about ourselves */
1271
1272     /* program name */
1273     prop1val.value = argv[0];
1274     prop1val.length = strlen(argv[0]);
1275     prop[0].name = SmProgram;
1276     prop[0].type = SmARRAY8;
1277     prop[0].num_vals = 1;
1278     prop[0].vals = &prop1val;
1279
1280     /* The XSMP doc from X11R6.1 says it contains the user name,
1281      * but every client implementation I saw places the uid # */
1282     sprintf(uid, "%i", getuid());
1283     prop2val.value = uid;
1284     prop2val.length = strlen(uid);
1285     prop[1].name = SmUserID;
1286     prop[1].type = SmARRAY8;
1287     prop[1].num_vals = 1;
1288     prop[1].vals = &prop2val;
1289
1290     /* Restart style. We should restart only if we were running when
1291      * the previous session finished. */
1292     restartStyle = SmRestartIfRunning;
1293     prop3val.value = &restartStyle;
1294     prop3val.length = 1;
1295     prop[2].name = SmRestartStyleHint;
1296     prop[2].type = SmCARD8;
1297     prop[2].num_vals = 1;
1298     prop[2].vals = &prop3val;
1299
1300     /* Our PID. Not required but might be usefull */
1301     sprintf(pid, "%i", getpid());
1302     prop4val.value = pid;
1303     prop4val.length = strlen(pid);
1304     prop[3].name = SmProcessID;
1305     prop[3].type = SmARRAY8;
1306     prop[3].num_vals = 1;
1307     prop[3].vals = &prop4val;
1308
1309     /* we'll set the rest of the hints later */
1310
1311     SmcSetProperties(sSMCConn, 4, props);
1312
1313 }
1314
1315
1316 void
1317 wSessionDisconnectManager(void)
1318 {
1319     if (sSMCConn) {
1320         WMDeleteInputHandler(sSMInputHandler);
1321         sSMInputHandler = NULL;
1322
1323         SmcCloseConnection(sSMCConn, 0, NULL);
1324         sSMCConn = NULL;
1325     }
1326 }
1327
1328 void
1329 wSessionRequestShutdown(void)
1330 {
1331     /* request a shutdown to the session manager */
1332     if (sSMCConn)
1333         SmcRequestSaveYourself(sSMCConn, SmSaveBoth, True, SmInteractStyleAny,
1334                                False, True);
1335 }
1336
1337
1338 Bool
1339 wSessionIsManaged(void)
1340 {
1341     return sSMCConn!=NULL;
1342 }
1343
1344 #endif /* !XSMP_ENABLED */