src/misc.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997, 1998 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  19  *  USA.
  20  */
  21 #include "wconfig.h"
  22
  23 #include <X11/Xlib.h>
  24 #include <X11/Xutil.h>
  25 #include <X11/Xatom.h>
  26 #include <sys/stat.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <unistd.h>
  31 #include <stdarg.h>
  32 #include <pwd.h>
  33 #include <math.h>
  34 #include <time.h>
  35
  36 #include <WUtil.h>
  37 #include <wraster.h>
  38
  39
  40 #include "WindowMaker.h"
  41 #include "GNUstep.h"
  42 #include "screen.h"
  43 #include "wcore.h"
  44 #include "window.h"
  45 #include "framewin.h"
  46 #include "funcs.h"
  47 #include "defaults.h"
  48 #include "dialog.h"
  49 #include "xutil.h"
  50 #include "xmodifier.h"
  51
  52
  53 /**** global variables *****/
  54
  55 extern char *DisplayName;
  56
  57 extern WPreferences wPreferences;
  58
  59 extern Time LastTimestamp;
  60
  61 #ifdef OFFIX_DND
  62 extern Atom _XA_DND_SELECTION;
  63 #endif
  64
  65
  66 #ifdef USECPP
  67 static void
  68 putdef(char *line, char *name, char *value)
  69 {
  70     if (!value) {
  71         wwarning(_("could not define value for %s for cpp"), name);
  72         return;
  73     }
  74     strcat(line, name);
  75     strcat(line, value);
  76 }
  77
  78
  79
  80 static void
  81 putidef(char *line, char *name, int value)
  82 {
  83     char tmp[64];
  84     sprintf(tmp, "%i", value);
  85     strcat(line, name);
  86     strcat(line, tmp);
  87 }
  88
  89
  90 static char*
  91 username()
  92 {
  93     char *tmp;
  94
  95     tmp = getlogin();
  96     if (!tmp) {
  97         struct passwd *user;
  98
  99         user = getpwuid(getuid());
 100         if (!user) {
 101             wsyserror(_("could not get password entry for UID %i"), getuid());
 102             return NULL;
 103         }
 104         if (!user->pw_name) {
 105             return NULL;
 106         } else {
 107             return user->pw_name;
 108         }
 109     }
 110     return tmp;
 111 }
 112
 113 char *
 114 MakeCPPArgs(char *path)
 115 {
 116     int i;
 117     char buffer[MAXLINE], *buf, *line;
 118     Visual *visual;
 119     char *tmp;
 120
 121     line = wmalloc(MAXLINE);
 122     *line = 0;
 123     i=1;
 124     if ((buf=getenv("HOSTNAME"))!=NULL) {
 125         if (buf[0]=='(') {
 126             wwarning(_("your machine is misconfigured. HOSTNAME is set to %s"),
 127                      buf);
 128         } else
 129           putdef(line, " -DHOST=", buf);
 130     } else if ((buf=getenv("HOST"))!=NULL) {
 131         if (buf[0]=='(') {
 132             wwarning(_("your machine is misconfigured. HOST is set to %s"),
 133                      buf);
 134         } else
 135           putdef(line, " -DHOST=", buf);
 136     }
 137     buf = username();
 138     if (buf)
 139       putdef(line, " -DUSER=", buf);
 140     putidef(line, " -DUID=", getuid());
 141     buf = XDisplayName(DisplayString(dpy));
 142     putdef(line, " -DDISPLAY=", buf);
 143     putdef(line, " -DWM_VERSION=", VERSION);
 144
 145     visual = DefaultVisual(dpy, DefaultScreen(dpy));
 146     putidef(line, " -DVISUAL=", visual->class);
 147
 148     putidef(line, " -DDEPTH=", DefaultDepth(dpy, DefaultScreen(dpy)));
 149
 150     putidef(line, " -DSCR_WIDTH=", WidthOfScreen(DefaultScreenOfDisplay(dpy)));
 151     putidef(line, " -DSCR_HEIGHT=",
 152             HeightOfScreen(DefaultScreenOfDisplay(dpy)));
 153
 154     /* put the dir where the menu is being read from to the
 155      * search path */
 156     if (path) {
 157         tmp = wstrdup(path);
 158         buf = strchr(tmp+1, ' ');
 159         if (buf) {
 160             *buf = 0;
 161         }
 162         buf = strrchr(tmp, '/');
 163         if (buf) {
 164             *buf = 0; /* trunc filename */
 165             putdef(line, " -I", tmp);
 166         }
 167         free(tmp);
 168     }
 169
 170
 171     /* this should be done just once, but it works this way */
 172     strcpy(buffer, DEF_CONFIG_PATHS);
 173     buf = strtok(buffer, ":");
 174
 175     do {
 176       char fullpath[MAXLINE];
 177
 178       if (buf[0]!='~') {
 179         strcpy(fullpath, buf);
 180       } else {
 181         char * wgethomedir();
 182         /* home is statically allocated. Don't free it! */
 183         char *home = wgethomedir();
 184
 185         strcpy(fullpath, home);
 186         strcat(fullpath, &(buf[1]));
 187       }
 188
 189       putdef(line, " -I", fullpath);
 190
 191     } while ((buf = strtok(NULL, ":"))!=NULL);
 192
 193 #undef arg
 194 #ifdef DEBUG
 195     puts("CPP ARGS");
 196     puts(line);
 197 #endif
 198     return line;
 199 }
 200 #endif /* USECPP */
 201
 202
 203
 204
 205
 206 WWindow*
 207 NextToFocusAfter(WWindow *wwin)
 208 {
 209     WWindow *tmp = wwin->prev;
 210
 211     while (tmp) {
 212         if (wWindowCanReceiveFocus(tmp) && !WFLAGP(tmp, skip_window_list)) {
 213             return tmp;
 214         }
 215         tmp = tmp->prev;
 216     }
 217
 218     tmp = wwin;
 219     /* start over from the beginning of the list */
 220     while (tmp->next)
 221         tmp = tmp->next;
 222
 223     while (tmp && tmp != wwin) {
 224         if (wWindowCanReceiveFocus(tmp) && !WFLAGP(tmp, skip_window_list)) {
 225             return tmp;
 226         }
 227         tmp = tmp->prev;
 228     }
 229
 230     return wwin;
 231 }
 232
 233
 234 WWindow*
 235 NextToFocusBefore(WWindow *wwin)
 236 {
 237     WWindow *tmp = wwin->next;
 238
 239     while (tmp) {
 240         if (wWindowCanReceiveFocus(tmp) && !WFLAGP(tmp, skip_window_list)) {
 241             return tmp;
 242         }
 243         tmp = tmp->next;
 244     }
 245
 246     /* start over from the beginning of the list */
 247     tmp = wwin;
 248     while (tmp->prev)
 249         tmp = tmp->prev;
 250
 251     while (tmp && tmp != wwin) {
 252         if (wWindowCanReceiveFocus(tmp) && !WFLAGP(tmp, skip_window_list)) {
 253
 254             return tmp;
 255         }
 256         tmp = tmp->next;
 257     }
 258
 259     return wwin;
 260 }
 261
 262
 263 #if 0
 264 /*
 265  * Is win2 below win1?
 266  */
 267 static Bool
 268 isBelow(WWindow *win1, WWindow *win2)
 269 {
 270     int i;
 271     WCoreWindow *tmp;
 272
 273     tmp = win1->frame->core->stacking->under;
 274     while (tmp) {
 275         if (tmp == win2->frame->core)
 276             return True;
 277         tmp = tmp->stacking->under;
 278     }
 279
 280     for (i=win1->frame->core->stacking->window_level-1; i>=0; i--) {
 281         tmp = win1->screen_ptr->stacking_list[i];
 282         while (tmp) {
 283             if (tmp == win2->frame->core)
 284                 return True;
 285             tmp = tmp->stacking->under;
 286         }
 287     }
 288     return True;
 289 }
 290 #endif
 291
 292
 293
 294 /*
 295  *  XFetchName Wrapper
 296  *
 297  */
 298 Bool wFetchName(dpy, win, winname)
 299 Display *dpy;
 300 Window win;
 301 char **winname;
 302 {
 303     XTextProperty text_prop;
 304     char **list;
 305     int num;
 306
 307     if (XGetWMName(dpy, win, &text_prop)) {
 308         if (text_prop.value && text_prop.nitems > 0) {
 309             if (text_prop.encoding == XA_STRING) {
 310                 *winname = wstrdup((char *)text_prop.value);
 311                 XFree(text_prop.value);
 312             } else {
 313                 text_prop.nitems = strlen((char *)text_prop.value);
 314                 if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
 315                     Success && num > 0 && *list) {
 316                     XFree(text_prop.value);
 317                     *winname = wstrdup(*list);
 318                     XFreeStringList(list);
 319                 } else {
 320                     *winname = wstrdup((char *)text_prop.value);
 321                     XFree(text_prop.value);
 322                 }
 323             }
 324         } else {
 325             /* the title is set, but it was set to none */
 326             *winname = wstrdup("");
 327         }
 328         return True;
 329     } else {
 330         /* the hint is probably not set */
 331         *winname = NULL;
 332
 333         return False;
 334     }
 335 }
 336
 337 /*
 338  *  XGetIconName Wrapper
 339  *
 340  */
 341
 342 Bool wGetIconName(dpy, win, iconname)
 343 Display *dpy;
 344 Window win;
 345 char **iconname;
 346 {
 347     XTextProperty text_prop;
 348     char **list;
 349     int num;
 350
 351     if (XGetWMIconName(dpy, win, &text_prop) != 0 && text_prop.value
 352         && text_prop.nitems > 0) {
 353         if (text_prop.encoding == XA_STRING)
 354             *iconname = (char *)text_prop.value;
 355         else {
 356             text_prop.nitems = strlen((char *)text_prop.value);
 357             if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
 358                 Success && num > 0 && *list) {
 359                 XFree(text_prop.value);
 360                 *iconname = wstrdup(*list);
 361                 XFreeStringList(list);
 362             } else
 363                 *iconname = (char *)text_prop.value;
 364         }
 365         return True;
 366     }
 367     *iconname = NULL;
 368     return False;
 369 }
 370
 371
 372 static void
 373 eatExpose()
 374 {
 375     XEvent event, foo;
 376
 377     /* compress all expose events into a single one */
 378
 379     if (XCheckMaskEvent(dpy, ExposureMask, &event)) {
 380         /* ignore other exposure events for this window */
 381         while (XCheckWindowEvent(dpy, event.xexpose.window, ExposureMask,
 382                                &foo));
 383         /* eat exposes for other windows */
 384         eatExpose();
 385
 386         event.xexpose.count = 0;
 387         XPutBackEvent(dpy, &event);
 388     }
 389 }
 390
 391
 392 void
 393 SlideWindow(Window win, int from_x, int from_y, int to_x, int to_y)
 394 {
 395     time_t time0 = time(NULL);
 396     float dx, dy, x=from_x, y=from_y, sx, sy, px, py;
 397     int dx_is_bigger=0;
 398
 399     /* animation parameters */
 400     static struct {
 401         int delay;
 402         int steps;
 403         int slowdown;
 404     } apars[5] = {
 405         {ICON_SLIDE_DELAY_UF, ICON_SLIDE_STEPS_UF, ICON_SLIDE_SLOWDOWN_UF},
 406         {ICON_SLIDE_DELAY_F, ICON_SLIDE_STEPS_F, ICON_SLIDE_SLOWDOWN_F},
 407         {ICON_SLIDE_DELAY_M, ICON_SLIDE_STEPS_M, ICON_SLIDE_SLOWDOWN_M},
 408         {ICON_SLIDE_DELAY_S, ICON_SLIDE_STEPS_S, ICON_SLIDE_SLOWDOWN_S},
 409         {ICON_SLIDE_DELAY_U, ICON_SLIDE_STEPS_U, ICON_SLIDE_SLOWDOWN_U}};
 410
 411
 412
 413     dx = (float)(to_x-from_x);
 414     dy = (float)(to_y-from_y);
 415     sx = (dx == 0 ? 0 : fabs(dx)/dx);
 416     sy = (dy == 0 ? 0 : fabs(dy)/dy);
 417
 418     if (fabs(dx) > fabs(dy)) {
 419         dx_is_bigger = 1;
 420     }
 421
 422     if (dx_is_bigger) {
 423         px = dx / apars[(int)wPreferences.icon_slide_speed].slowdown;
 424         if (px < apars[(int)wPreferences.icon_slide_speed].steps && px > 0)
 425             px = apars[(int)wPreferences.icon_slide_speed].steps;
 426         else if (px > -apars[(int)wPreferences.icon_slide_speed].steps && px < 0)
 427             px = -apars[(int)wPreferences.icon_slide_speed].steps;
 428         py = (sx == 0 ? 0 : px*dy/dx);
 429     } else {
 430         py = dy / apars[(int)wPreferences.icon_slide_speed].slowdown;
 431         if (py < apars[(int)wPreferences.icon_slide_speed].steps && py > 0)
 432             py = apars[(int)wPreferences.icon_slide_speed].steps;
 433         else if (py > -apars[(int)wPreferences.icon_slide_speed].steps && py < 0)
 434             py = -apars[(int)wPreferences.icon_slide_speed].steps;
 435         px = (sy == 0 ? 0 : py*dx/dy);
 436     }
 437
 438     while (x != to_x || y != to_y) {
 439         x += px;
 440         y += py;
 441         if ((px<0 && (int)x < to_x) || (px>0 && (int)x > to_x))
 442             x = (float)to_x;
 443         if ((py<0 && (int)y < to_y) || (py>0 && (int)y > to_y))
 444             y = (float)to_y;
 445
 446         if (dx_is_bigger) {
 447             px = px * (1.0 - 1/(float)apars[(int)wPreferences.icon_slide_speed].slowdown);
 448             if (px < apars[(int)wPreferences.icon_slide_speed].steps && px > 0)
 449                 px = apars[(int)wPreferences.icon_slide_speed].steps;
 450             else if (px > -apars[(int)wPreferences.icon_slide_speed].steps && px < 0)
 451                 px = -apars[(int)wPreferences.icon_slide_speed].steps;
 452             py = (sx == 0 ? 0 : px*dy/dx);
 453         } else {
 454             py = py * (1.0 - 1/(float)apars[(int)wPreferences.icon_slide_speed].slowdown);
 455             if (py < apars[(int)wPreferences.icon_slide_speed].steps && py > 0)
 456                 py = apars[(int)wPreferences.icon_slide_speed].steps;
 457             else if (py > -apars[(int)wPreferences.icon_slide_speed].steps && py < 0)
 458                 py = -apars[(int)wPreferences.icon_slide_speed].steps;
 459             px = (sy == 0 ? 0 : py*dx/dy);
 460         }
 461
 462         XMoveWindow(dpy, win, (int)x, (int)y);
 463         XFlush(dpy);
 464         if (apars[(int)wPreferences.icon_slide_speed].delay > 0) {
 465             wusleep(apars[(int)wPreferences.icon_slide_speed].delay*1000L);
 466         }
 467         if (time(NULL) - time0 > MAX_ANIMATION_TIME)
 468             break;
 469     }
 470     XMoveWindow(dpy, win, to_x, to_y);
 471
 472     XSync(dpy, 0);
 473     /* compress expose events */
 474     eatExpose();
 475 }
 476
 477
 478 char*
 479 ShrinkString(WMFont *font, char *string, int width)
 480 {
 481     int w, w1=0;
 482     int p;
 483     char *pos;
 484     char *text;
 485     int p1, p2, t;
 486
 487     if (wPreferences.multi_byte_text)
 488         return wstrdup(string);
 489
 490     p = strlen(string);
 491     w = WMWidthOfString(font, string, p);
 492     text = wmalloc(strlen(string)+8);
 493     strcpy(text, string);
 494     if (w<=width)
 495       return text;
 496
 497     pos = strchr(text, ' ');
 498     if (!pos)
 499       pos = strchr(text, ':');
 500
 501     if (pos) {
 502         *pos = 0;
 503         p = strlen(text);
 504         w1 = WMWidthOfString(font, text, p);
 505         if (w1 > width) {
 506             w1 = 0;
 507             p = 0;
 508             *pos = ' ';
 509             *text = 0;
 510         } else {
 511             *pos = 0;
 512             width -= w1;
 513             p++;
 514         }
 515         string += p;
 516         p=strlen(string);
 517     } else {
 518         *text=0;
 519     }
 520     strcat(text, "...");
 521     width -= WMWidthOfString(font, "...", 3);
 522
 523     pos = string;
 524     p1=0;
 525     p2=p;
 526     t = (p2-p1)/2;
 527     while (p2>p1 && p1!=t) {
 528         w = WMWidthOfString(font, &string[p-t], t);
 529         if (w>width) {
 530             p2 = t;
 531             t = p1+(p2-p1)/2;
 532         } else if (w<width) {
 533             p1 = t;
 534             t = p1+(p2-p1)/2;
 535         } else
 536           p2=p1=t;
 537     }
 538     strcat(text, &string[p-p1]);
 539
 540     return text;
 541 }
 542
 543
 544 char*
 545 FindImage(char *paths, char *file)
 546 {
 547     char *tmp, *path;
 548
 549     tmp = strrchr(file, ':');
 550     if (tmp) {
 551         *tmp = 0;
 552         path = wfindfile(paths, file);
 553         *tmp = ':';
 554     }
 555     if (!tmp || !path) {
 556         path = wfindfile(paths, file);
 557     }
 558
 559     return path;
 560 }
 561
 562
 563 char*
 564 FlattenStringList(char **list, int count)
 565 {
 566     int i, j;
 567     char *flat_string, *wspace;
 568
 569     j = 0;
 570     for (i=0; i<count; i++) {
 571         if (list[i]!=NULL && list[i][0]!=0) {
 572             j += strlen(list[i]);
 573             if (strpbrk(list[i], " \t"))
 574                 j += 2;
 575         }
 576     }
 577
 578     flat_string = malloc(j+count+1);
 579     if (!flat_string) {
 580         return NULL;
 581     }
 582
 583     *flat_string = 0;
 584     for (i=0; i<count; i++) {
 585         if (list[i]!=NULL && list[i][0]!=0) {
 586             if (i>0)
 587                 strcat(flat_string, " ");
 588             wspace = strpbrk(list[i], " \t");
 589             if (wspace)
 590                 strcat(flat_string, "\"");
 591             strcat(flat_string, list[i]);
 592             if (wspace)
 593                 strcat(flat_string, "\"");
 594         }
 595     }
 596
 597     return flat_string;
 598 }
 599
 600
 601
 602 /*
 603  *----------------------------------------------------------------------
 604  * ParseCommand --
 605  *      Divides a command line into a argv/argc pair.
 606  *----------------------------------------------------------------------
 607  */
 608 #define PRC_ALPHA       0
 609 #define PRC_BLANK       1
 610 #define PRC_ESCAPE      2
 611 #define PRC_DQUOTE      3
 612 #define PRC_EOS         4
 613 #define PRC_SQUOTE      5
 614
 615 typedef struct {
 616     short nstate;
 617     short output;
 618 } DFA;
 619
 620
 621 static DFA mtable[9][6] = {
 622     {{3,1},{0,0},{4,0},{1,0},{8,0},{6,0}},
 623     {{1,1},{1,1},{2,0},{3,0},{5,0},{1,1}},
 624     {{1,1},{1,1},{1,1},{1,1},{5,0},{1,1}},
 625     {{3,1},{5,0},{4,0},{1,0},{5,0},{6,0}},
 626     {{3,1},{3,1},{3,1},{3,1},{5,0},{3,1}},
 627     {{-1,-1},{0,0},{0,0},{0,0},{0,0},{0,0}}, /* final state */
 628     {{6,1},{6,1},{7,0},{6,1},{5,0},{3,0}},
 629     {{6,1},{6,1},{6,1},{6,1},{5,0},{6,1}},
 630     {{-1,-1},{0,0},{0,0},{0,0},{0,0},{0,0}}, /* final state */
 631 };
 632
 633 char*
 634 next_token(char *word, char **next)
 635 {
 636     char *ptr;
 637     char *ret, *t;
 638     int state, ctype;
 639
 640     t = ret = wmalloc(strlen(word)+1);
 641     ptr = word;
 642
 643     state = 0;
 644     *t = 0;
 645     while (1) {
 646         if (*ptr==0)
 647             ctype = PRC_EOS;
 648         else if (*ptr=='\\')
 649             ctype = PRC_ESCAPE;
 650         else if (*ptr=='"')
 651             ctype = PRC_DQUOTE;
 652         else if (*ptr=='\'')
 653             ctype = PRC_SQUOTE;
 654         else if (*ptr==' ' || *ptr=='\t')
 655             ctype = PRC_BLANK;
 656         else
 657             ctype = PRC_ALPHA;
 658
 659         if (mtable[state][ctype].output) {
 660             *t = *ptr; t++;
 661             *t = 0;
 662         }
 663         state = mtable[state][ctype].nstate;
 664         ptr++;
 665         if (mtable[state][0].output<0) {
 666             break;
 667         }
 668     }
 669
 670     if (*ret==0)
 671         t = NULL;
 672     else
 673         t = wstrdup(ret);
 674
 675     free(ret);
 676
 677     if (ctype==PRC_EOS)
 678         *next = NULL;
 679     else
 680         *next = ptr;
 681
 682     return t;
 683 }
 684
 685
 686 void
 687 ParseCommand(char *command, char ***argv, int *argc)
 688 {
 689     WMBag *bag = WMCreateBag(4);
 690     char *token, *line;
 691     int count, j;
 692
 693     line = command;
 694     do {
 695         token = next_token(line, &line);
 696         if (token) {
 697             WMPutInBag(bag, token);
 698         }
 699     } while (token!=NULL && line!=NULL);
 700
 701     count = WMGetBagItemCount(bag);
 702     *argv = wmalloc(sizeof(char*)*count);
 703     for (j = 0; j < count; j++) {
 704         (*argv)[j] = WMGetFromBag(bag, j);
 705     }
 706     *argc = count;
 707
 708     WMFreeBag(bag);
 709 }
 710
 711 #if 0
 712 static void
 713 timeup(void *foo)
 714 {
 715     *(int*)foo=1;
 716 }
 717 #endif
 718 static char*
 719 getselection(WScreen *scr)
 720 {
 721     char *tmp;
 722     extern char *W_GetTextSelection(); /* in WINGs */
 723
 724     tmp = W_GetTextSelection(scr->wmscreen, XA_PRIMARY);
 725     if (!tmp)
 726         tmp = W_GetTextSelection(scr->wmscreen, XA_CUT_BUFFER0);
 727     return tmp;
 728
 729 #if 0
 730     XEvent event;
 731     int timeover=0;
 732     WMHandlerID *id;
 733
 734 #ifdef DEBUG
 735     puts("getting selection");
 736 #endif
 737     RequestSelection(dpy, scr->no_focus_win, LastTimestamp);
 738     /* timeout on 1 sec. */
 739     id = WMAddTimerHandler(1000, timeup, &timeover);
 740     while (!timeover) {
 741         WMNextEvent(dpy, &event);
 742         if (event.type == SelectionNotify
 743             && event.xany.window==scr->no_focus_win) {
 744             WMDeleteTimerHandler(id);
 745 #ifdef DEBUG
 746             puts("selection ok");
 747 #endif
 748             return GetSelection(dpy, scr->no_focus_win);
 749         } else {
 750             WMHandleEvent(&event);
 751         }
 752     }
 753     wwarning(_("selection timed-out"));
 754     return NULL;
 755 #endif
 756 }
 757
 758
 759 static char*
 760 getuserinput(WScreen *scr, char *line, int *ptr)
 761 {
 762     char *ret;
 763     char *title;
 764     char *prompt;
 765     int j, state;
 766     int begin = 0;
 767     char tbuffer[256], pbuffer[256];
 768
 769     title = _("Program Arguments");
 770     prompt = _("Enter command arguments:");
 771     ret = NULL;
 772
 773 #define _STARTING 0
 774 #define _TITLE 1
 775 #define _PROMPT 2
 776 #define _DONE 3
 777
 778     state = _STARTING;
 779     j = 0;
 780     for (; line[*ptr]!=0 && state!=_DONE; (*ptr)++) {
 781         switch (state) {
 782          case _STARTING:
 783             if (line[*ptr]=='(') {
 784                 state = _TITLE;
 785                 begin = *ptr+1;
 786             } else {
 787                 state = _DONE;
 788             }
 789             break;
 790
 791          case _TITLE:
 792             if (j <= 0 && line[*ptr]==',') {
 793
 794                 j = 0;
 795                 if (*ptr > begin) {
 796                     strncpy(tbuffer, &line[begin], WMIN(*ptr-begin, 255));
 797                     tbuffer[WMIN(*ptr-begin, 255)] = 0;
 798                     title = (char*)tbuffer;
 799                 }
 800                 begin = *ptr+1;
 801                 state = _PROMPT;
 802
 803             } else if (j <= 0 && line[*ptr]==')') {
 804
 805                 if (*ptr > begin) {
 806                     strncpy(tbuffer, &line[begin], WMIN(*ptr-begin, 255));
 807                     tbuffer[WMIN(*ptr-begin, 255)] = 0;
 808                     title = (char*)tbuffer;
 809                 }
 810                 state = _DONE;
 811
 812             } else if (line[*ptr]=='(') {
 813                 j++;
 814             } else if (line[*ptr]==')') {
 815                 j--;
 816             }
 817
 818             break;
 819
 820          case _PROMPT:
 821             if (line[*ptr]==')' && j==0) {
 822
 823                 if (*ptr-begin > 1) {
 824                     strncpy(pbuffer, &line[begin], WMIN(*ptr-begin, 255));
 825                     pbuffer[WMIN(*ptr-begin, 255)] = 0;
 826                     prompt = (char*)pbuffer;
 827                 }
 828                 state = _DONE;
 829             } else if (line[*ptr]=='(')
 830                     j++;
 831             else if (line[*ptr]==')')
 832                 j--;
 833             break;
 834         }
 835     }
 836     (*ptr)--;
 837 #undef _STARTING
 838 #undef _TITLE
 839 #undef _PROMPT
 840 #undef _DONE
 841
 842     if (!wInputDialog(scr, title, prompt, &ret))
 843         return NULL;
 844     else
 845         return ret;
 846 }
 847
 848
 849 #ifdef OFFIX_DND
 850 static char*
 851 get_dnd_selection(WScreen *scr)
 852 {
 853     XTextProperty text_ret;
 854     int result;
 855     char **list;
 856     char *flat_string;
 857     int count;
 858
 859     result=XGetTextProperty(dpy, scr->root_win, &text_ret, _XA_DND_SELECTION);
 860
 861     if (result==0 || text_ret.value==NULL || text_ret.encoding==None
 862         || text_ret.format==0 || text_ret.nitems == 0) {
 863         wwarning(_("unable to get dropped data from DND drop"));
 864         return NULL;
 865     }
 866
 867     XTextPropertyToStringList(&text_ret, &list, &count);
 868
 869     if (!list || count<1) {
 870         XFree(text_ret.value);
 871         wwarning(_("error getting dropped data from DND drop"));
 872         return NULL;
 873     }
 874
 875     flat_string = FlattenStringList(list, count);
 876     if (!flat_string) {
 877         wwarning(_("out of memory while getting data from DND drop"));
 878     }
 879
 880     XFreeStringList(list);
 881     XFree(text_ret.value);
 882     return flat_string;
 883 }
 884 #endif /* OFFIX_DND */
 885
 886
 887 #define S_NORMAL 0
 888 #define S_ESCAPE 1
 889 #define S_OPTION 2
 890
 891 /*
 892  * state        input   new-state       output
 893  * NORMAL       %       OPTION          <nil>
 894  * NORMAL       \       ESCAPE          <nil>
 895  * NORMAL       etc.    NORMAL          <input>
 896  * ESCAPE       any     NORMAL          <input>
 897  * OPTION       s       NORMAL          <selection buffer>
 898  * OPTION       w       NORMAL          <selected window id>
 899  * OPTION       a       NORMAL          <input text>
 900  * OPTION       d       NORMAL          <OffiX DND selection object>
 901  * OPTION       W       NORMAL          <current workspace>
 902  * OPTION       etc.    NORMAL          %<input>
 903  */
 904 #define TMPBUFSIZE 64
 905 char*
 906 ExpandOptions(WScreen *scr, char *cmdline)
 907 {
 908     int ptr, optr, state, len, olen;
 909     char *out, *nout;
 910     char *selection=NULL;
 911     char *user_input=NULL;
 912 #if defined(OFFIX_DND) || defined(XDND)
 913     char *dropped_thing=NULL;
 914 #endif
 915     char tmpbuf[TMPBUFSIZE];
 916     int slen;
 917
 918     len = strlen(cmdline);
 919     olen = len+1;
 920     out = malloc(olen);
 921     if (!out) {
 922         wwarning(_("out of memory during expansion of \"%s\""));
 923         return NULL;
 924     }
 925     *out = 0;
 926     ptr = 0;                           /* input line pointer */
 927     optr = 0;                          /* output line pointer */
 928     state = S_NORMAL;
 929     while (ptr < len) {
 930         switch (state) {
 931          case S_NORMAL:
 932             switch (cmdline[ptr]) {
 933              case '\\':
 934                 state = S_ESCAPE;
 935                 break;
 936              case '%':
 937                 state = S_OPTION;
 938                 break;
 939              default:
 940                 state = S_NORMAL;
 941                 out[optr++]=cmdline[ptr];
 942                 break;
 943             }
 944             break;
 945          case S_ESCAPE:
 946             switch (cmdline[ptr]) {
 947              case 'n':
 948                 out[optr++]=10;
 949                 break;
 950
 951              case 'r':
 952                 out[optr++]=13;
 953                 break;
 954
 955              case 't':
 956                 out[optr++]=9;
 957                 break;
 958
 959              default:
 960                 out[optr++]=cmdline[ptr];
 961             }
 962             state = S_NORMAL;
 963             break;
 964          case S_OPTION:
 965             state = S_NORMAL;
 966             switch (cmdline[ptr]) {
 967              case 'w':
 968                 if (scr->focused_window
 969                     && scr->focused_window->flags.focused) {
 970                     sprintf(tmpbuf, "0x%x",
 971                             (unsigned int)scr->focused_window->client_win);
 972                     slen = strlen(tmpbuf);
 973                     olen += slen;
 974                     nout = realloc(out,olen);
 975                     if (!nout) {
 976                         wwarning(_("out of memory during expansion of \"%w\""));
 977                         goto error;
 978                     }
 979                     out = nout;
 980                     strcat(out,tmpbuf);
 981                     optr+=slen;
 982                 } else {
 983                     out[optr++]=' ';
 984                 }
 985                 break;
 986
 987              case 'W':
 988                 sprintf(tmpbuf, "0x%x",
 989                         (unsigned int)scr->current_workspace + 1);
 990                 slen = strlen(tmpbuf);
 991                 olen += slen;
 992                 nout = realloc(out,olen);
 993                 if (!nout) {
 994                     wwarning(_("out of memory during expansion of \"%W\""));
 995                     goto error;
 996                 }
 997                 out = nout;
 998                 strcat(out,tmpbuf);
 999                 optr+=slen;
1000                 break;
1001
1002              case 'a':
1003                 ptr++;
1004                 user_input = getuserinput(scr, cmdline, &ptr);
1005                 if (user_input) {
1006                     slen = strlen(user_input);
1007                     olen += slen;
1008                     nout = realloc(out,olen);
1009                     if (!nout) {
1010                         wwarning(_("out of memory during expansion of \"%a\""));
1011                         goto error;
1012                     }
1013                     out = nout;
1014                     strcat(out,user_input);
1015                     optr+=slen;
1016                 } else {
1017                     /* Not an error, but user has Canceled the dialog box.
1018                      * This will make the command to not be performed. */
1019                     goto error;
1020                 }
1021                 break;
1022
1023 #if defined(OFFIX_DND) || defined(XDND)
1024              case 'd':
1025 #ifdef XDND
1026         if(scr->xdestring) {
1027             dropped_thing = wstrdup(scr->xdestring);
1028         }
1029 #endif
1030                 if (!dropped_thing) {
1031                     dropped_thing = get_dnd_selection(scr);
1032                 }
1033                 if (!dropped_thing) {
1034                     scr->flags.dnd_data_convertion_status = 1;
1035                     goto error;
1036                 }
1037                 slen = strlen(dropped_thing);
1038                 olen += slen;
1039                 nout = realloc(out,olen);
1040                 if (!nout) {
1041                     wwarning(_("out of memory during expansion of \"%d\""));
1042                     goto error;
1043                 }
1044                 out = nout;
1045                 strcat(out,dropped_thing);
1046                 optr+=slen;
1047                 break;
1048 #endif /* OFFIX_DND */
1049
1050              case 's':
1051                 if (!selection) {
1052                     selection = getselection(scr);
1053                 }
1054                 if (!selection) {
1055                     wwarning(_("selection not available"));
1056                     goto error;
1057                 }
1058                 slen = strlen(selection);
1059                 olen += slen;
1060                 nout = realloc(out,olen);
1061                 if (!nout) {
1062                     wwarning(_("out of memory during expansion of \"%s\""));
1063                     goto error;
1064                 }
1065                 out = nout;
1066                 strcat(out,selection);
1067                 optr+=slen;
1068                 break;
1069              default:
1070                 out[optr++]='%';
1071                 out[optr++]=cmdline[ptr];
1072             }
1073             break;
1074         }
1075         out[optr]=0;
1076         ptr++;
1077     }
1078     if (selection)
1079       XFree(selection);
1080     return out;
1081
1082     error:
1083     free(out);
1084     if (selection)
1085       XFree(selection);
1086     return NULL;
1087 }
1088
1089
1090 /* We don't care for upper/lower case in comparing the keys; so we
1091    have to define our own comparison function here */
1092 BOOL
1093 StringCompareHook(proplist_t pl1, proplist_t pl2)
1094 {
1095     char *str1, *str2;
1096
1097     str1 = PLGetString(pl1);
1098     str2 = PLGetString(pl2);
1099
1100     if (strcasecmp(str1, str2)==0)
1101       return YES;
1102     else
1103       return NO;
1104 }
1105
1106
1107 /* feof doesn't seem to work on pipes */
1108 int
1109 IsEof(FILE * stream)
1110 {
1111     static struct stat stinfo;
1112
1113     fstat(fileno(stream), &stinfo);
1114     return ((S_ISFIFO(stinfo.st_dev) && stinfo.st_size == 0) ||
1115             feof(stream));
1116 }
1117
1118
1119 void
1120 ParseWindowName(proplist_t value, char **winstance, char **wclass, char *where)
1121 {
1122     char *name;
1123
1124     *winstance = *wclass = NULL;
1125
1126     if (!PLIsString(value)) {
1127         wwarning(_("bad window name value in %s state info"), where);
1128         return;
1129     }
1130
1131     name = PLGetString(value);
1132     if (!name || strlen(name)==0) {
1133         wwarning(_("bad window name value in %s state info"), where);
1134         return;
1135     }
1136
1137     UnescapeWM_CLASS(name, winstance, wclass);
1138 }
1139
1140
1141 #if 0
1142 static char*
1143 keysymToString(KeySym keysym, unsigned int state)
1144 {
1145     XKeyEvent kev;
1146     char *buf = wmalloc(20);
1147     int count;
1148
1149     kev.display = dpy;
1150     kev.type = KeyPress;
1151     kev.send_event = False;
1152     kev.window = DefaultRootWindow(dpy);
1153     kev.root = DefaultRootWindow(dpy);
1154     kev.same_screen = True;
1155     kev.subwindow = kev.root;
1156     kev.serial = 0x12344321;
1157     kev.time = CurrentTime;
1158     kev.state = state;
1159     kev.keycode = XKeysymToKeycode(dpy, keysym);
1160     count = XLookupString(&kev, buf, 19, NULL, NULL);
1161     buf[count] = 0;
1162
1163     return buf;
1164 }
1165 #endif
1166
1167 static char *
1168 appendrealloc(char *a, char *b)
1169 {
1170     if (a == NULL)
1171         return wstrdup(b);
1172     else {
1173         char *c = wstrappend(a, b);
1174         free(a);
1175         return c;
1176     }
1177 }
1178
1179
1180 char*
1181 GetShortcutString(char *text)
1182 {
1183     char *buffer = NULL;
1184     char *k;
1185     int modmask = 0;
1186 /*    KeySym ksym;*/
1187     int control = 0;
1188     char *tmp;
1189
1190     tmp = text = wstrdup(text);
1191
1192     /* get modifiers */
1193     while ((k = strchr(text, '+'))!=NULL) {
1194         int mod;
1195
1196         *k = 0;
1197         mod = wXModifierFromKey(text);
1198         if (mod<0) {
1199             return wstrdup("bug");
1200         }
1201
1202         modmask |= mod;
1203
1204         if (strcasecmp(text, "Meta")==0) {
1205             buffer = appendrealloc(buffer, "M+");
1206         } else if (strcasecmp(text, "Alt")==0) {
1207             buffer = appendrealloc(buffer, "A+");
1208         } else if (strcasecmp(text, "Shift")==0) {
1209             buffer = appendrealloc(buffer, "Sh+");
1210         } else if (strcasecmp(text, "Mod1")==0) {
1211             buffer = appendrealloc(buffer, "M1+");
1212         } else if (strcasecmp(text, "Mod2")==0) {
1213             buffer = appendrealloc(buffer, "M2+");
1214         } else if (strcasecmp(text, "Mod3")==0) {
1215             buffer = appendrealloc(buffer, "M3+");
1216         } else if (strcasecmp(text, "Mod4")==0) {
1217             buffer = appendrealloc(buffer, "M4+");
1218         } else if (strcasecmp(text, "Mod5")==0) {
1219             buffer = appendrealloc(buffer, "M5+");
1220         } else if (strcasecmp(text, "Control")==0) {
1221             control = 1;
1222         } else {
1223             buffer = appendrealloc(buffer, text);
1224         }
1225         text = k+1;
1226     }
1227
1228     if (control) {
1229         buffer = appendrealloc(buffer, "^");
1230     }
1231     buffer = appendrealloc(buffer, text);
1232
1233     /* get key */
1234 /*    ksym = XStringToKeysym(text);
1235     tmp = keysymToString(ksym, modmask);
1236     puts(tmp);
1237     buffer = wstrappend(buffer, tmp);
1238 */
1239     free(tmp);
1240
1241     return buffer;
1242 }
1243
1244
1245 char*
1246 EscapeWM_CLASS(char *name, char *class)
1247 {
1248     char *ret;
1249     char *ename = NULL, *eclass = NULL;
1250     int i, j, l;
1251
1252     if (!name && !class)
1253         return NULL;
1254
1255     if (name) {
1256         l = strlen(name);
1257         ename = wmalloc(l*2);
1258         j = 0;
1259         for (i=0; i<l; i++) {
1260             if (name[i]=='\\') {
1261                 ename[j++] = '\\';
1262             } else if (name[i]=='.') {
1263                 ename[j++] = '\\';
1264             }
1265             ename[j++] = name[i];
1266         }
1267         ename[j] = 0;
1268     }
1269     if (class) {
1270         l = strlen(class);
1271         eclass = wmalloc(l*2);
1272         j = 0;
1273         for (i=0; i<l; i++) {
1274             if (class[i]=='\\') {
1275                 eclass[j++] = '\\';
1276             } else if (class[i]=='.') {
1277                 eclass[j++] = '\\';
1278             }
1279             eclass[j++] = class[i];
1280         }
1281         eclass[j] = 0;
1282     }
1283
1284     if (ename && eclass) {
1285         ret = wmalloc(strlen(ename)+strlen(eclass)+4);
1286         sprintf(ret, "%s.%s", ename, eclass);
1287         free(ename);
1288         free(eclass);
1289     } else if (ename) {
1290         ret = wstrdup(ename);
1291         free(ename);
1292     } else {
1293         ret = wstrdup(eclass);
1294         free(eclass);
1295     }
1296
1297     return ret;
1298 }
1299
1300
1301 void
1302 UnescapeWM_CLASS(char *str, char **name, char **class)
1303 {
1304     int i, j, k, dot;
1305     Bool esc;
1306
1307     j = strlen(str);
1308     *name = wmalloc(j);
1309     **name = 0;
1310     *class = wmalloc(j);
1311     **class = 0;
1312
1313     /* separate string in 2 parts */
1314     esc = False;
1315     dot = 0;
1316     for (i = 0; i < j; i++) {
1317         if (!esc) {
1318             if (str[i]=='\\') {
1319                 esc = True;
1320             } else if (str[i]=='.') {
1321                 dot = i;
1322                 break;
1323             }
1324         } else {
1325             esc = False;
1326         }
1327     }
1328
1329     /* unescape strings */
1330     esc = False;
1331     k = 0;
1332     for (i = 0; i < dot; i++) {
1333         if (!esc) {
1334             if (str[i]=='\\') {
1335                 esc = True;
1336             } else {
1337                 (*name)[k++] = str[i];
1338             }
1339         } else {
1340             (*name)[k++] = str[i];
1341             esc = False;
1342         }
1343     }
1344     (*name)[k] = 0;
1345
1346     esc = False;
1347     k = 0;
1348     for (i = dot+1; i<j; i++) {
1349         if (!esc) {
1350             if (str[i]=='\\') {
1351                 esc = True;
1352             } else {
1353                 (*class)[k++] = str[i];
1354             }
1355         } else {
1356             esc = False;
1357         }
1358     }
1359     (*class)[k] = 0;
1360
1361     if (!*name) {
1362         free(*name);
1363         *name = NULL;
1364     }
1365     if (!*class) {
1366         free(*class);
1367         *class = NULL;
1368     }
1369 }
1370
1371
1372
1373 void
1374 SendHelperMessage(WScreen *scr, char type, int workspace, char *msg)
1375 {
1376     unsigned char *buffer;
1377     int len;
1378     int i;
1379     char buf[16];
1380
1381     if (!scr->flags.backimage_helper_launched) {
1382         return;
1383     }
1384
1385     len = (msg ? strlen(msg) : 0) + (workspace >=0 ? 4 : 0) + 1 ;
1386     buffer = wmalloc(len+5);
1387     sprintf(buf, "%4i", len);
1388     memcpy(buffer, buf, 4);
1389     buffer[4] = type;
1390     i = 5;
1391     if (workspace >= 0) {
1392         sprintf(buf, "%4i", workspace);
1393         memcpy(&buffer[i], buf, 4);
1394         i += 4;
1395         buffer[i] = 0;
1396     }
1397     if (msg)
1398         strcpy(&buffer[i], msg);
1399
1400     if (write(scr->helper_fd, buffer, len+4) < 0) {
1401         wsyserror(_("could not send message to background image helper"));
1402     }
1403     free(buffer);
1404 }