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 static proplist_t sShortcutMask;
 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     sShortcutMask = PLMakeString("ShortcutMask");
 152
 153     sYes = PLMakeString("Yes");
 154     sNo = PLMakeString("No");
 155 }
 156
 157
 158
 159 static int
 160 getBool(proplist_t value)
 161 {
 162     char *val;
 163
 164     if (!PLIsString(value)) {
 165         return 0;
 166     }
 167     if (!(val = PLGetString(value))) {
 168         return 0;
 169     }
 170
 171     if ((val[1]=='\0' && (val[0]=='y' || val[0]=='Y'))
 172         || strcasecmp(val, "YES")==0) {
 173
 174         return 1;
 175     } else if ((val[1]=='\0' && (val[0]=='n' || val[0]=='N'))
 176              || strcasecmp(val, "NO")==0) {
 177         return 0;
 178     } else {
 179         int i;
 180         if (sscanf(val, "%i", &i)==1) {
 181             return (i!=0);
 182         } else {
 183             wwarning(_("can't convert \"%s\" to boolean"), val);
 184             return 0;
 185         }
 186     }
 187 }
 188
 189
 190 static unsigned
 191 getInt(proplist_t value)
 192 {
 193     char *val;
 194     unsigned n;
 195
 196     if (!PLIsString(value))
 197         return 0;
 198     val = PLGetString(value);
 199     if (!val)
 200         return 0;
 201     if (sscanf(val, "%u", &n) != 1)
 202         return 0;
 203
 204     return n;
 205 }
 206
 207
 208
 209 static proplist_t
 210 makeWindowState(WWindow *wwin, WApplication *wapp)
 211 {
 212     WScreen *scr = wwin->screen_ptr;
 213     Window win;
 214     int argc;
 215     char **argv;
 216     int i;
 217     unsigned mask;
 218     char *class, *instance, *command=NULL, buffer[256];
 219     proplist_t win_state, cmd, name, workspace;
 220     proplist_t shaded, miniaturized, hidden, geometry;
 221     proplist_t dock, shortcut;
 222
 223     if (wwin->main_window!=None && wwin->main_window!=wwin->client_win)
 224         win = wwin->main_window;
 225     else
 226         win = wwin->client_win;
 227
 228     if (XGetCommand(dpy, win, &argv, &argc) && argc>0) {
 229         command = FlattenStringList(argv, argc);
 230         XFreeStringList(argv);
 231     }
 232     if (!command)
 233         return NULL;
 234
 235     if (PropGetWMClass(win, &class, &instance)) {
 236         if (class && instance)
 237             sprintf(buffer, "%s.%s", instance, class);
 238         else if (instance)
 239             sprintf(buffer, "%s", instance);
 240         else if (class)
 241             sprintf(buffer, ".%s", class);
 242         else
 243             sprintf(buffer, ".");
 244
 245         name = PLMakeString(buffer);
 246         cmd = PLMakeString(command);
 247         /*sprintf(buffer, "%d", wwin->frame->workspace+1);
 248         workspace = PLMakeString(buffer);*/
 249         workspace = PLMakeString(scr->workspaces[wwin->frame->workspace]->name);
 250         shaded = wwin->flags.shaded ? sYes : sNo;
 251         miniaturized = wwin->flags.miniaturized ? sYes : sNo;
 252         hidden = wwin->flags.hidden ? sYes : sNo;
 253         sprintf(buffer, "%ix%i+%i+%i", wwin->client.width, wwin->client.height,
 254                 wwin->frame_x, wwin->frame_y);
 255         geometry = PLMakeString(buffer);
 256
 257         for (mask = 0, i = 0; i < MAX_WINDOW_SHORTCUTS; i++) {
 258             if (scr->shortcutWindows[i] != NULL &&
 259                 WMGetFirstInBag(scr->shortcutWindows[i], wwin) != WBNotFound) {
 260                 mask |= 1<<i;
 261             }
 262         }
 263
 264         sprintf(buffer, "%u", mask);
 265         shortcut = PLMakeString(buffer);
 266
 267         win_state = PLMakeDictionaryFromEntries(sName, name,
 268                                                 sCommand, cmd,
 269                                                 sWorkspace, workspace,
 270                                                 sShaded, shaded,
 271                                                 sMiniaturized, miniaturized,
 272                                                 sHidden, hidden,
 273                                                 sShortcutMask, shortcut,
 274                                                 sGeometry, geometry,
 275                                                 NULL);
 276
 277         PLRelease(name);
 278         PLRelease(cmd);
 279         PLRelease(workspace);
 280         PLRelease(geometry);
 281         PLRelease(shortcut);
 282         if (wapp && wapp->app_icon && wapp->app_icon->dock) {
 283             int i;
 284             char *name;
 285             if (wapp->app_icon->dock == scr->dock) {
 286                 name="Dock";
 287             } else {
 288                 for(i=0; i<scr->workspace_count; i++)
 289                     if(scr->workspaces[i]->clip == wapp->app_icon->dock)
 290                         break;
 291                 assert( i < scr->workspace_count);
 292                 /*n = i+1;*/
 293                 name = scr->workspaces[i]->name;
 294             }
 295             dock = PLMakeString(name);
 296             PLInsertDictionaryEntry(win_state, sDock, dock);
 297             PLRelease(dock);
 298         }
 299     } else {
 300         win_state = NULL;
 301     }
 302
 303     if (instance) XFree(instance);
 304     if (class) XFree(class);
 305     if (command) free(command);
 306
 307     return win_state;
 308 }
 309
 310
 311 void
 312 wSessionSaveState(WScreen *scr)
 313 {
 314     WWindow *wwin = scr->focused_window;
 315     proplist_t win_info, wks;
 316     proplist_t list=NULL;
 317     WMBag *wapp_list=NULL;
 318
 319
 320     make_keys();
 321
 322     if (!scr->session_state) {
 323         scr->session_state = PLMakeDictionaryFromEntries(NULL, NULL, NULL);
 324         if (!scr->session_state)
 325             return;
 326     }
 327
 328     list = PLMakeArrayFromElements(NULL);
 329
 330     wapp_list = WMCreateBag(16);
 331
 332     while (wwin) {
 333         WApplication *wapp=wApplicationOf(wwin->main_window);
 334
 335         if (wwin->transient_for==None
 336             && WMGetFirstInBag(wapp_list, wapp)==WBNotFound
 337             && !WFLAGP(wwin, dont_save_session)) {
 338             /* A entry for this application was not yet saved. Save one. */
 339             if ((win_info = makeWindowState(wwin, wapp))!=NULL) {
 340                 list = PLAppendArrayElement(list, win_info);
 341                 PLRelease(win_info);
 342                 /* If we were succesful in saving the info for this window
 343                  * add the application the window belongs to, to the
 344                  * application list, so no multiple entries for the same
 345                  * application are saved.
 346                  */
 347                 WMPutInBag(wapp_list, wapp);
 348             }
 349         }
 350         wwin = wwin->prev;
 351     }
 352     PLRemoveDictionaryEntry(scr->session_state, sApplications);
 353     PLInsertDictionaryEntry(scr->session_state, sApplications, list);
 354     PLRelease(list);
 355
 356     wks = PLMakeString(scr->workspaces[scr->current_workspace]->name);
 357     PLInsertDictionaryEntry(scr->session_state, sWorkspace, wks);
 358     PLRelease(wks);
 359
 360     WMFreeBag(wapp_list);
 361 }
 362
 363
 364 void
 365 wSessionClearState(WScreen *scr)
 366 {
 367     make_keys();
 368
 369     if (!scr->session_state)
 370         return;
 371
 372     PLRemoveDictionaryEntry(scr->session_state, sApplications);
 373     PLRemoveDictionaryEntry(scr->session_state, sWorkspace);
 374 }
 375
 376
 377 static pid_t
 378 execCommand(WScreen *scr, char *command, char *host)
 379 {
 380     pid_t pid;
 381     char **argv;
 382     int argc;
 383
 384     ParseCommand(command, &argv, &argc);
 385
 386     if (argv==NULL) {
 387         return 0;
 388     }
 389
 390     if ((pid=fork())==0) {
 391         char **args;
 392         int i;
 393
 394         SetupEnvironment(scr);
 395
 396         args = malloc(sizeof(char*)*(argc+1));
 397         if (!args)
 398             exit(111);
 399         for (i=0; i<argc; i++) {
 400             args[i] = argv[i];
 401         }
 402         args[argc] = NULL;
 403         execvp(argv[0], args);
 404         exit(111);
 405     }
 406     while (argc > 0)
 407         free(argv[--argc]);
 408     free(argv);
 409     return pid;
 410 }
 411
 412
 413 static WSavedState*
 414 getWindowState(WScreen *scr, proplist_t win_state)
 415 {
 416     WSavedState *state = wmalloc(sizeof(WSavedState));
 417     proplist_t value;
 418     char *tmp;
 419     unsigned mask;
 420     int i;
 421
 422     memset(state, 0, sizeof(WSavedState));
 423     state->workspace = -1;
 424     value = PLGetDictionaryEntry(win_state, sWorkspace);
 425     if (value && PLIsString(value)) {
 426         tmp = PLGetString(value);
 427         if (sscanf(tmp, "%i", &state->workspace)!=1) {
 428             state->workspace = -1;
 429             for (i=0; i < scr->workspace_count; i++) {
 430                 if (strcmp(scr->workspaces[i]->name, tmp)==0) {
 431                     state->workspace = i;
 432                     break;
 433                 }
 434             }
 435         } else {
 436             state->workspace--;
 437         }
 438     }
 439     if ((value = PLGetDictionaryEntry(win_state, sShaded))!=NULL)
 440         state->shaded = getBool(value);
 441     if ((value = PLGetDictionaryEntry(win_state, sMiniaturized))!=NULL)
 442         state->miniaturized = getBool(value);
 443     if ((value = PLGetDictionaryEntry(win_state, sHidden))!=NULL)
 444         state->hidden = getBool(value);
 445     if ((value = PLGetDictionaryEntry(win_state, sShortcutMask))!=NULL) {
 446         mask = getInt(value);
 447         state->window_shortcuts = mask;
 448     }
 449
 450     value = PLGetDictionaryEntry(win_state, sGeometry);
 451     if (value && PLIsString(value)) {
 452         if (!(sscanf(PLGetString(value), "%ix%i+%i+%i",
 453                    &state->w, &state->h, &state->x, &state->y)==4 &&
 454               (state->w>0 && state->h>0))) {
 455             state->w = 0;
 456             state->h = 0;
 457         }
 458     }
 459
 460     return state;
 461 }
 462
 463
 464 #define SAME(x, y) (((x) && (y) && !strcmp((x), (y))) || (!(x) && !(y)))
 465
 466 void
 467 wSessionRestoreState(WScreen *scr)
 468 {
 469     WSavedState *state;
 470     char *instance, *class, *command, *host;
 471     proplist_t win_info, apps, cmd, value;
 472     pid_t pid;
 473     int i, count;
 474     WDock *dock;
 475     WAppIcon *btn=NULL;
 476     int j, n, found;
 477     char *tmp;
 478
 479     make_keys();
 480
 481     if (!scr->session_state)
 482         return;
 483
 484     PLSetStringCmpHook(NULL);
 485
 486     apps = PLGetDictionaryEntry(scr->session_state, sApplications);
 487     if (!apps)
 488         return;
 489
 490     count = PLGetNumberOfElements(apps);
 491     if (count==0)
 492         return;
 493
 494     for (i=0; i<count; i++) {
 495         win_info = PLGetArrayElement(apps, i);
 496
 497         cmd = PLGetDictionaryEntry(win_info, sCommand);
 498         if (!cmd || !PLIsString(cmd) || !(command = PLGetString(cmd))) {
 499             continue;
 500         }
 501
 502         value = PLGetDictionaryEntry(win_info, sName);
 503         if (!value)
 504             continue;
 505
 506         ParseWindowName(value, &instance, &class, "session");
 507         if (!instance && !class)
 508             continue;
 509
 510         value = PLGetDictionaryEntry(win_info, sHost);
 511         if (value && PLIsString(value))
 512             host = PLGetString(value);
 513         else
 514             host = NULL;
 515
 516         state = getWindowState(scr, win_info);
 517
 518         dock = NULL;
 519         value = PLGetDictionaryEntry(win_info, sDock);
 520         if (value && PLIsString(value) && (tmp = PLGetString(value))!=NULL) {
 521             if (sscanf(tmp, "%i", &n)!=1) {
 522                 if (!strcasecmp(tmp, "DOCK")) {
 523                     dock = scr->dock;
 524                 } else {
 525                     for (j=0; j < scr->workspace_count; j++) {
 526                         if (strcmp(scr->workspaces[j]->name, tmp)==0) {
 527                             dock = scr->workspaces[j]->clip;
 528                             break;
 529                         }
 530                     }
 531                 }
 532             } else {
 533                 if (n == 0) {
 534                     dock = scr->dock;
 535                 } else if (n>0 && n<=scr->workspace_count) {
 536                     dock = scr->workspaces[n-1]->clip;
 537                 }
 538             }
 539         }
 540
 541         found = 0;
 542         if (dock!=NULL) {
 543             for (j=0; j<dock->max_icons; j++) {
 544                 btn = dock->icon_array[j];
 545                 if (btn && SAME(instance, btn->wm_instance) &&
 546                     SAME(class, btn->wm_class) &&
 547                     SAME(command, btn->command) &&
 548                     !btn->launching) {
 549                     found = 1;
 550                     break;
 551                 }
 552             }
 553         }
 554
 555         if (found) {
 556             wDockLaunchWithState(dock, btn, state);
 557         } else if ((pid = execCommand(scr, command, host)) > 0) {
 558             wWindowAddSavedState(instance, class, command, pid, state);
 559         } else {
 560             free(state);
 561         }
 562
 563         if (instance) free(instance);
 564         if (class) free(class);
 565     }
 566     /* clean up */
 567     PLSetStringCmpHook(StringCompareHook);
 568 }
 569
 570
 571 void
 572 wSessionRestoreLastWorkspace(WScreen *scr)
 573 {
 574     proplist_t wks;
 575     int w, i;
 576     char *tmp;
 577
 578     make_keys();
 579
 580     if (!scr->session_state)
 581         return;
 582
 583     PLSetStringCmpHook(NULL);
 584
 585     wks = PLGetDictionaryEntry(scr->session_state, sWorkspace);
 586     if (!wks || !PLIsString(wks))
 587         return;
 588
 589     tmp = PLGetString(wks);
 590
 591     /* clean up */
 592     PLSetStringCmpHook(StringCompareHook);
 593
 594     if (sscanf(tmp, "%i", &w)!=1) {
 595         w = -1;
 596         for (i=0; i < scr->workspace_count; i++) {
 597             if (strcmp(scr->workspaces[i]->name, tmp)==0) {
 598                 w = i;
 599                 break;
 600             }
 601         }
 602     } else {
 603         w--;
 604     }
 605
 606     if (w!=scr->current_workspace && w<scr->workspace_count) {
 607         wWorkspaceChange(scr, w);
 608     }
 609 }
 610
 611
 612 static void
 613 clearWaitingAckState(WScreen *scr)
 614 {
 615     WWindow *wwin;
 616     WApplication *wapp;
 617
 618     for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
 619         wwin->flags.waiting_save_ack = 0;
 620         if (wwin->main_window != None) {
 621             wapp = wApplicationOf(wwin->main_window);
 622             if (wapp)
 623                 wapp->main_window_desc->flags.waiting_save_ack = 0;
 624         }
 625     }
 626 }
 627
 628
 629 void
 630 wSessionSaveClients(WScreen *scr)
 631 {
 632
 633 }
 634
 635
 636 /*
 637  * With XSMP, this job is done by smproxy
 638  */
 639 void
 640 wSessionSendSaveYourself(WScreen *scr)
 641 {
 642     WWindow *wwin;
 643     int count;
 644
 645     /* freeze client interaction with clients */
 646     XGrabKeyboard(dpy, scr->root_win, False, GrabModeAsync, GrabModeAsync,
 647                   CurrentTime);
 648     XGrabPointer(dpy, scr->root_win, False, ButtonPressMask|ButtonReleaseMask,
 649                  GrabModeAsync, GrabModeAsync, scr->root_win, None,
 650                  CurrentTime);
 651
 652     clearWaitingAckState(scr);
 653
 654     count = 0;
 655
 656     /* first send SAVE_YOURSELF for everybody */
 657     for (wwin = scr->focused_window; wwin != NULL; wwin = wwin->prev) {
 658         WWindow *mainWin;
 659
 660         mainWin = wWindowFor(wwin->main_window);
 661
 662         if (mainWin) {
 663             /* if the client is a multi-window client, only send message
 664              * to the main window */
 665             wwin = mainWin;
 666         }
 667
 668         /* make sure the SAVE_YOURSELF flag is up-to-date */
 669         PropGetProtocols(wwin->client_win, &wwin->protocols);
 670
 671         if (wwin->protocols.SAVE_YOURSELF) {
 672             if (!wwin->flags.waiting_save_ack) {
 673                 wClientSendProtocol(wwin, _XA_WM_SAVE_YOURSELF, LastTimestamp);
 674
 675                 wwin->flags.waiting_save_ack = 1;
 676                 count++;
 677             }
 678         } else {
 679             wwin->flags.waiting_save_ack = 0;
 680         }
 681     }
 682
 683     /* then wait for acknowledge */
 684     while (count > 0) {
 685
 686     }
 687
 688     XUngrabPointer(dpy, CurrentTime);
 689     XUngrabKeyboard(dpy, CurrentTime);
 690     XFlush(dpy);
 691 }
 692
 693
 694 #ifdef XSMP_ENABLED
 695 /*
 696  * With full session management support, the part of WMState
 697  * that store client window state will become obsolete (maybe we can reuse
 698  *                                                      the old code too),
 699  * but we still need to store state info like the dock and workspaces.
 700  * It is better to keep dock/wspace info in WMState because the user
 701  * might want to keep the dock configuration while not wanting to
 702  * resume a previously saved session.
 703  * So, wmaker specific state info can be saved in
 704  * ~/GNUstep/.AppInfo/WindowMaker/statename.state
 705  * Its better to not put it in the defaults directory because:
 706  * - its not a defaults file (having domain names like wmaker0089504baa
 707  * in the defaults directory wouldn't be very neat)
 708  * - this state file is not meant to be edited by users
 709  *
 710  * The old session code will become obsolete. When wmaker is
 711  * compiled with R6 sm support compiled in, itll be better to
 712  * use a totally rewritten state saving code, but we can keep
 713  * the current code for when XSMP_ENABLED is not compiled in.
 714  *
 715  * This will be confusing to old users (well get lots of "SAVE_SESSION broke!"
 716  * messages), but itll be better.
 717  *
 718  * -readme
 719  */
 720
 721
 722 static char*
 723 getWindowRole(Window window)
 724 {
 725     XTextProperty prop;
 726     static Atom atom = 0;
 727
 728     if (!atom)
 729         atom = XInternAtom(dpy, "WM_WINDOW_ROLE", False);
 730
 731     if (XGetTextProperty(dpy, window, &prop, atom)) {
 732         if (prop.encoding == XA_STRING && prop.format == 8 && prop.nitems > 0)
 733             return prop.value;
 734     }
 735
 736     return NULL;
 737 }
 738
 739
 740 /*
 741  *
 742  * Saved Info:
 743  *
 744  * WM_WINDOW_ROLE
 745  *
 746  * WM_CLASS.instance
 747  * WM_CLASS.class
 748  * WM_NAME
 749  * WM_COMMAND
 750  *
 751  * geometry
 752  * state = (miniaturized, shaded, etc)
 753  * attribute
 754  * workspace #
 755  * app state = (which dock, hidden)
 756  * window shortcut #
 757  */
 758
 759 static proplist_t
 760 makeAppState(WWindow *wwin)
 761 {
 762     WApplication *wapp;
 763     proplist_t state;
 764     WScreen *scr = wwin->screen_ptr;
 765
 766     state = PLMakeArrayWithElements(NULL, NULL);
 767
 768     wapp = wApplicationOf(wwin->main_window);
 769
 770     if (wapp) {
 771         if (wapp->app_icon && wapp->app_icon->dock) {
 772
 773             if (wapp->app_icon->dock == scr->dock) {
 774                 PLAppendArrayElement(state, PLMakeString("Dock"));
 775             } else {
 776                 int i;
 777
 778                 for(i=0; i<scr->workspace_count; i++)
 779                     if(scr->workspaces[i]->clip == wapp->app_icon->dock)
 780                         break;
 781
 782                 assert(i < scr->workspace_count);
 783
 784                 PLAppendArrayElement(state,
 785                                      PLMakeString(scr->workspaces[i]->name));
 786             }
 787         }
 788
 789         PLAppendArrayElement(state, PLMakeString(wapp->hidden ? "1" : "0"));
 790     }
 791
 792     return state;
 793 }
 794
 795
 796
 797 Bool
 798 wSessionGetStateFor(WWindow *wwin, WSessionData *state)
 799 {
 800     char *str;
 801     proplist_t slist;
 802     proplist_t elem;
 803     proplist_t value;
 804     int index = 0;
 805
 806     index = 3;
 807
 808     /* geometry */
 809     value = PLGetArrayElement(slist, index++);
 810     str = PLGetString(value);
 811
 812     sscanf(str, "%i %i %i %i %i %i", &state->x, &state->y,
 813            &state->width, &state->height,
 814            &state->user_changed_width, &state->user_changed_height);
 815
 816
 817     /* state */
 818     value = PLGetArrayElement(slist, index++);
 819     str = PLGetString(value);
 820
 821     sscanf(str, "%i %i %i", &state->miniaturized, &state->shaded,
 822            &state->maximized);
 823
 824
 825     /* attributes */
 826     value = PLGetArrayElement(slist, index++);
 827     str = PLGetString(value);
 828
 829     getAttributeState(str, &state->mflags, &state->flags);
 830
 831
 832     /* workspace */
 833     value = PLGetArrayElement(slist, index++);
 834     str = PLGetString(value);
 835
 836     sscanf(str, "%i", &state->workspace);
 837
 838
 839     /* app state (repeated for all windows of the app) */
 840     value = PLGetArrayElement(slist, index++);
 841     str = PLGetString(value);
 842
 843     /* ???? */
 844
 845     /* shortcuts */
 846     value = PLGetArrayElement(slist, index++);
 847     str = PLGetString(value);
 848
 849     sscanf(str, "%i", &state->shortcuts);
 850 }
 851
 852
 853
 854 static proplist_t
 855 makeAttributeState(WWindow *wwin)
 856 {
 857     unsigned int data1, data2;
 858     char buffer[256];
 859
 860 #define W_FLAG(wwin, FLAG)      ((wwin)->defined_user_flags.FLAG \
 861                                         ? (wwin)->user_flags.FLAG : -1)
 862
 863     sprintf(buffer,
 864             "%i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i %i",
 865             W_FLAG(no_titlebar),
 866             W_FLAG(no_resizable),
 867             W_FLAG(no_closable),
 868             W_FLAG(no_miniaturizable),
 869             W_FLAG(no_resizebar),
 870             W_FLAG(no_close_button),
 871             W_FLAG(no_miniaturize_button),
 872             /*
 873             W_FLAG(broken_close),
 874             W_FLAG(kill_close),
 875              */
 876             W_FLAG(no_shadeable),
 877             W_FLAG(omnipresent),
 878             W_FLAG(skip_window_list),
 879             W_FLAG(floating),
 880             W_FLAG(sunken),
 881             W_FLAG(no_bind_keys),
 882             W_FLAG(no_bind_mouse),
 883             W_FLAG(no_hide_others),
 884             W_FLAG(no_appicon),
 885             W_FLAG(dont_move_off),
 886             W_FLAG(no_focusable),
 887             W_FLAG(always_user_icon),
 888             W_FLAG(start_miniaturized),
 889             W_FLAG(start_hidden),
 890             W_FLAG(start_maximized),
 891             W_FLAG(dont_save_session),
 892             W_FLAG(emulate_appicon));
 893
 894     return PLMakeString(buffer);
 895 }
 896
 897
 898 static void
 899 appendStringInArray(proplist_t array, char *str)
 900 {
 901     proplist_t val;
 902
 903     val = PLMakeString(str);
 904     PLAppendArrayElement(array, val);
 905     PLRelease(val);
 906 }
 907
 908
 909 static proplist_t
 910 makeClientState(WWindow *wwin)
 911 {
 912     proplist_t state;
 913     proplist_t tmp;
 914     char *str;
 915     char buffer[256];
 916     int i;
 917     unsigned shortcuts;
 918
 919     state = PLMakeArrayWithElements(NULL, NULL);
 920
 921     /* WM_WINDOW_ROLE */
 922     str = getWindowRole(wwin->client_win);
 923     if (!str)
 924         appendStringInArray(state, "");
 925     else {
 926         appendStringInArray(state, str);
 927         XFree(str);
 928     }
 929
 930     /* WM_CLASS.instance */
 931     appendStringInArray(state, wwin->wm_instance);
 932
 933     /* WM_CLASS.class */
 934     appendStringInArray(state, wwin->wm_class);
 935
 936     /* WM_NAME */
 937     if (wwin->flags.wm_name_changed)
 938         appendStringInArray(state, "");
 939     else
 940         appendStringInArray(state, wwin->frame->name);
 941
 942     /* geometry */
 943     sprintf(buffer, "%i %i %i %i %i %i", wwin->frame_x, wwin->frame_y,
 944             wwin->client.width, wwin->client.height,
 945             wwin->flags.user_changed_width, wwin->flags.user_changed_height);
 946     appendStringInArray(state, buffer);
 947
 948     /* state */
 949     sprintf(buffer, "%i %i %i", wwin->flags.miniaturized,
 950             wwin->flags.shaded, wwin->flags.maximized);
 951     appendStringInArray(state, buffer);
 952
 953     /* attributes */
 954     tmp = makeAttributeState(wwin);
 955     PLAppendArrayElement(state, tmp);
 956     PLRelease(tmp);
 957
 958     /* workspace */
 959     sprintf(buffer, "%i", wwin->frame->workspace);
 960     appendStringInArray(state, buffer);
 961
 962     /* app state (repeated for all windows of the app) */
 963     tmp = makeAppState(wwin);
 964     PLAppendArrayElement(state, tmp);
 965     PLRelease(tmp);
 966
 967     /* shortcuts */
 968     shortcuts = 0;
 969     for (i = 0; i < MAX_WINDOW_SHORTCUTS; i++) {
 970         if (scr->shortcutWindow[i] == wwin) {
 971             shortcuts |= 1 << i;
 972         }
 973     }
 974     sprintf(buffer, "%ui", shortcuts);
 975     appendStringInArray(tmp, buffer);
 976
 977     return state;
 978 }
 979
 980
 981 static void
 982 smSaveYourselfPhase2Proc(SmcConn smc_conn, SmPointer client_data)
 983 {
 984     SmProp props[4];
 985     SmPropValue prop1val, prop2val, prop3val, prop4val;
 986     char **argv = (char**)client_data;
 987     int argc;
 988     int i, j;
 989     Bool ok = False;
 990     char *statefile = NULL;
 991     char *prefix;
 992     Bool gsPrefix = False;
 993     char *discardCmd = NULL;
 994     time_t t;
 995     proplist_t state;
 996
 997 #ifdef DEBUG1
 998     puts("received SaveYourselfPhase2 SM message");
 999 #endif
1000
1001     /* save session state */
1002
1003     /* the file that will contain the state */
1004     prefix = getenv("SM_SAVE_DIR");
1005     if (!prefix) {
1006         prefix = wusergnusteppath();
1007         if (prefix)
1008             gsPrefix = True;
1009     }
1010     if (!prefix) {
1011         prefix = getenv("HOME");
1012     }
1013     if (!prefix)
1014         prefix = ".";
1015
1016     statefile = malloc(strlen(prefix)+64);
1017     if (!statefile) {
1018         wwarning(_("out of memory while saving session state"));
1019         goto fail;
1020     }
1021
1022     t = time();
1023     i = 0;
1024     do {
1025         if (gsPrefix)
1026             sprintf(statefile, "%s/.AppInfo/WindowMaker/wmaker.%l%i.state",
1027                     prefix, t, i);
1028         else
1029             sprintf(statefile, "%s/wmaker.%l%i.state", prefix, t, i);
1030         i++;
1031     } while (access(F_OK, statefile)!=-1);
1032
1033     /* save the states of all windows we're managing */
1034     state = PLMakeArrayFromElements(NULL, NULL);
1035
1036     /*
1037      * Format:
1038      *
1039      * state_file ::= dictionary with version_info ; state
1040      * version_info ::= 'version' = '1';
1041      * state ::= 'state' = array of screen_info
1042      * screen_info ::= array of (screen number, window_info, window_info, ...)
1043      * window_info ::=
1044      */
1045     for (i=0; i<wScreenCount; i++) {
1046         WScreen *scr;
1047         WWindow *wwin;
1048         char buf[32];
1049         proplist_t pscreen;
1050
1051         scr = wScreenWithNumber(i);
1052
1053         sprintf(buf, "%i", scr->screen);
1054         pscreen = PLMakeArrayFromElements(PLMakeString(buf), NULL);
1055
1056         wwin = scr->focused_window;
1057         while (wwin) {
1058             proplist_t pwindow;
1059
1060             pwindow = makeClientState(wwin);
1061             PLAppendArrayElement(pscreen, pwindow);
1062
1063             wwin = wwin->prev;
1064         }
1065
1066         PLAppendArrayElement(state, pscreen);
1067     }
1068
1069     {
1070         proplist_t statefile;
1071
1072         statefile = PLMakeDictionaryFromEntries(PLMakeString("Version"),
1073                                                 PLMakeString("1.0"),
1074
1075                                                 PLMakeString("Screens"),
1076                                                 state,
1077
1078                                                 NULL);
1079
1080         PLSetFilename(statefile, PLMakeString(statefile));
1081         PLSave(statefile, NO);
1082
1083         PLRelease(statefile);
1084     }
1085
1086     /* set the remaining properties that we didn't set at
1087      * startup time */
1088
1089     for (argc=0, i=0; argv[i]!=NULL; i++) {
1090         if (strcmp(argv[i], "-clientid")==0
1091             || strcmp(argv[i], "-restore")==0) {
1092             i++;
1093         } else {
1094             argc++;
1095         }
1096     }
1097
1098     prop[0].name = SmRestartCommand;
1099     prop[0].type = SmLISTofARRAY8;
1100     prop[0].vals = malloc(sizeof(SmPropValue)*(argc+4));
1101     prop[0].num_vals = argc+4;
1102
1103     prop[1].name = SmCloneCommand;
1104     prop[1].type = SmLISTofARRAY8;
1105     prop[1].vals = malloc(sizeof(SmPropValue)*(argc));
1106     prop[1].num_vals = argc;
1107
1108     if (!prop[0].vals || !prop[1].vals) {
1109         wwarning(_("end of memory while saving session state"));
1110         goto fail;
1111     }
1112
1113     for (j=0, i=0; i<argc+4; i++) {
1114         if (strcmp(argv[i], "-clientid")==0
1115             || strcmp(argv[i], "-restore")==0) {
1116             i++;
1117         } else {
1118             prop[0].vals[j].value = argv[i];
1119             prop[0].vals[j].length = strlen(argv[i]);
1120             prop[1].vals[j].value = argv[i];
1121             prop[1].vals[j].length = strlen(argv[i]);
1122             j++;
1123         }
1124     }
1125     prop[0].vals[j].value = "-clientid";
1126     prop[0].vals[j].length = 9;
1127     j++;
1128     prop[0].vals[j].value = sClientID;
1129     prop[0].vals[j].length = strlen(sClientID);
1130     j++;
1131     prop[0].vals[j].value = "-restore";
1132     prop[0].vals[j].length = 11;
1133     j++;
1134     prop[0].vals[j].value = statefile;
1135     prop[0].vals[j].length = strlen(statefile);
1136
1137     discardCmd = malloc(strlen(statefile)+8);
1138     if (!discardCmd)
1139         goto fail;
1140     sprintf(discardCmd, "rm %s", statefile);
1141     prop[2].name = SmDiscardCommand;
1142     prop[2].type = SmARRAY8;
1143     prop[2].vals[0] = discardCmd;
1144     prop[2].num_vals = 1;
1145
1146     SmcSetProperties(sSMCConn, 3, prop);
1147
1148     ok = True;
1149 fail:
1150     SmcSaveYourselfDone(smc_conn, ok);
1151
1152     if (prop[0].vals)
1153         free(prop[0].vals);
1154     if (prop[1].vals)
1155         free(prop[1].vals);
1156     if (discardCmd)
1157         free(discardCmd);
1158
1159     if (!ok) {
1160         remove(statefile);
1161     }
1162     if (statefile)
1163         free(statefile);
1164 }
1165
1166
1167 static void
1168 smSaveYourselfProc(SmcConn smc_conn, SmPointer client_data, int save_type,
1169                    Bool shutdown, int interact_style, Bool fast)
1170 {
1171 #ifdef DEBUG1
1172     puts("received SaveYourself SM message");
1173 #endif
1174
1175     if (!SmcRequestSaveYourselfPhase2(smc_conn, smSaveYourselfPhase2Proc,
1176                                       client_data)) {
1177
1178         SmcSaveYourselfDone(smc_conn, False);
1179         sWaitingPhase2 = False;
1180     } else {
1181 #ifdef DEBUG1
1182         puts("successfull request of SYS phase 2");
1183 #endif
1184         sWaitingPhase2 = True;
1185     }
1186 }
1187
1188
1189 static void
1190 smDieProc(SmcConn smc_conn, SmPointer client_data)
1191 {
1192 #ifdef DEBUG1
1193     puts("received Die SM message");
1194 #endif
1195
1196     wSessionDisconnectManager();
1197
1198     Shutdown(WSExitMode, True);
1199 }
1200
1201
1202
1203 static void
1204 smSaveCompleteProc(SmcConn smc_conn)
1205 {
1206     /* it means that we can resume doing things that can change our state */
1207 #ifdef DEBUG1
1208     puts("received SaveComplete SM message");
1209 #endif
1210 }
1211
1212
1213 static void
1214 smShutdownCancelledProc(SmcConn smc_conn, SmPointer client_data)
1215 {
1216     if (sWaitingPhase2) {
1217
1218         sWaitingPhase2 = False;
1219
1220         SmcSaveYourselfDone(smc_conn, False);
1221     }
1222 }
1223
1224
1225 static void
1226 iceMessageProc(int fd, int mask, void *clientData)
1227 {
1228     IceConn iceConn = (IceConn)clientData;
1229
1230     IceProcessMessages(iceConn, NULL, NULL);
1231 }
1232
1233
1234 static void
1235 iceIOErrorHandler(IceConnection ice_conn)
1236 {
1237     /* This is not fatal but can mean the session manager exited.
1238      * If the session manager exited normally we would get a
1239      * Die message, so this probably means an abnormal exit.
1240      * If the sm was the last client of session, then we'll die
1241      * anyway, otherwise we can continue doing our stuff.
1242      */
1243     wwarning(_("connection to the session manager was lost"));
1244     wSessionDisconnectManager();
1245 }
1246
1247
1248 void
1249 wSessionConnectManager(char **argv, int argc)
1250 {
1251     IceConn iceConn;
1252     char *previous_id = NULL;
1253     char buffer[256];
1254     SmcCallbacks callbacks;
1255     unsigned long mask;
1256     char uid[32];
1257     char pid[32];
1258     SmProp props[4];
1259     SmPropValue prop1val, prop2val, prop3val, prop4val;
1260     char restartStyle;
1261     int i;
1262
1263     mask = SmcSaveYourselfProcMask|SmcDieProcMask|SmcSaveCompleteProcMask
1264         |SmcShutdownCancelledProcMask;
1265
1266     callbacks.save_yourself.callback = smSaveYourselfProc;
1267     callbacks.save_yourself.client_data = argv;
1268
1269     callbacks.die.callback = smDieProc;
1270     callbacks.die.client_data = NULL;
1271
1272     callbacks.save_complete.callback = smSaveCompleteProc;
1273     callbacks.save_complete.client_data = NULL;
1274
1275     callbacks.shutdown_cancelled.callback = smShutdownCancelledProc;
1276     callbacks.shutdown_cancelled.client_data = NULL;
1277
1278     for (i=0; i<argc; i++) {
1279         if (strcmp(argv[i], "-clientid")==0) {
1280             previous_id = argv[i+1];
1281             break;
1282         }
1283     }
1284
1285     /* connect to the session manager */
1286     sSMCConn = SmcOpenConnection(NULL, NULL, SmProtoMajor, SmProtoMinor,
1287                                  mask, &callbacks, previous_id,
1288                                  &sClientID, 255, buffer);
1289     if (!sSMCConn) {
1290         return;
1291     }
1292 #ifdef DEBUG1
1293     puts("connected to the session manager");
1294 #endif
1295
1296 /*    IceSetIOErrorHandler(iceIOErrorHandler);*/
1297
1298     /* check for session manager clients */
1299     iceConn = SmcGetIceConnection(smcConn);
1300
1301     if (fcntl(IceConnectionNumber(iceConn), F_SETFD, FD_CLOEXEC) < 0) {
1302         wsyserror("error setting close-on-exec flag for ICE connection");
1303     }
1304
1305     sSMInputHandler = WMAddInputHandler(IceConnectionNumber(iceConn),
1306                                         WIReadMask, iceMessageProc, iceConn);
1307
1308     /* setup information about ourselves */
1309
1310     /* program name */
1311     prop1val.value = argv[0];
1312     prop1val.length = strlen(argv[0]);
1313     prop[0].name = SmProgram;
1314     prop[0].type = SmARRAY8;
1315     prop[0].num_vals = 1;
1316     prop[0].vals = &prop1val;
1317
1318     /* The XSMP doc from X11R6.1 says it contains the user name,
1319      * but every client implementation I saw places the uid # */
1320     sprintf(uid, "%i", getuid());
1321     prop2val.value = uid;
1322     prop2val.length = strlen(uid);
1323     prop[1].name = SmUserID;
1324     prop[1].type = SmARRAY8;
1325     prop[1].num_vals = 1;
1326     prop[1].vals = &prop2val;
1327
1328     /* Restart style. We should restart only if we were running when
1329      * the previous session finished. */
1330     restartStyle = SmRestartIfRunning;
1331     prop3val.value = &restartStyle;
1332     prop3val.length = 1;
1333     prop[2].name = SmRestartStyleHint;
1334     prop[2].type = SmCARD8;
1335     prop[2].num_vals = 1;
1336     prop[2].vals = &prop3val;
1337
1338     /* Our PID. Not required but might be usefull */
1339     sprintf(pid, "%i", getpid());
1340     prop4val.value = pid;
1341     prop4val.length = strlen(pid);
1342     prop[3].name = SmProcessID;
1343     prop[3].type = SmARRAY8;
1344     prop[3].num_vals = 1;
1345     prop[3].vals = &prop4val;
1346
1347     /* we'll set the rest of the hints later */
1348
1349     SmcSetProperties(sSMCConn, 4, props);
1350
1351 }
1352
1353
1354 void
1355 wSessionDisconnectManager(void)
1356 {
1357     if (sSMCConn) {
1358         WMDeleteInputHandler(sSMInputHandler);
1359         sSMInputHandler = NULL;
1360
1361         SmcCloseConnection(sSMCConn, 0, NULL);
1362         sSMCConn = NULL;
1363     }
1364 }
1365
1366 void
1367 wSessionRequestShutdown(void)
1368 {
1369     /* request a shutdown to the session manager */
1370     if (sSMCConn)
1371         SmcRequestSaveYourself(sSMCConn, SmSaveBoth, True, SmInteractStyleAny,
1372                                False, True);
1373 }
1374
1375
1376 Bool
1377 wSessionIsManaged(void)
1378 {
1379     return sSMCConn!=NULL;
1380 }
1381
1382 #endif /* !XSMP_ENABLED */