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 <pwd.h>
  32 #include <math.h>
  33 #include <time.h>
  34
  35 #include <WUtil.h>
  36 #include <wraster.h>
  37
  38
  39 #include "WindowMaker.h"
  40 #include "GNUstep.h"
  41 #include "screen.h"
  42 #include "wcore.h"
  43 #include "window.h"
  44 #include "framewin.h"
  45 #include "funcs.h"
  46 #include "defaults.h"
  47 #include "dialog.h"
  48 #include "xutil.h"
  49 #include "xmodifier.h"
  50
  51 #include "list.h"
  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
 120     line = wmalloc(MAXLINE);
 121     *line = 0;
 122     i=1;
 123     if ((buf=getenv("HOSTNAME"))!=NULL) {
 124         if (buf[0]=='(') {
 125             wwarning(_("your machine is misconfigured. HOSTNAME is set to %s"),
 126                      buf);
 127         } else
 128           putdef(line, " -DHOST=", buf);
 129     } else if ((buf=getenv("HOST"))!=NULL) {
 130         if (buf[0]=='(') {
 131             wwarning(_("your machine is misconfigured. HOST is set to %s"),
 132                      buf);
 133         } else
 134           putdef(line, " -DHOST=", buf);
 135     }
 136     buf = username();
 137     if (buf)
 138       putdef(line, " -DUSER=", buf);
 139     putidef(line, " -DUID=", getuid());
 140     buf = XDisplayName(DisplayString(dpy));
 141     putdef(line, " -DDISPLAY=", buf);
 142     putdef(line, " -DWM_VERSION=", VERSION);
 143
 144     visual = DefaultVisual(dpy, DefaultScreen(dpy));
 145     putidef(line, " -DVISUAL=", visual->class);
 146
 147     putidef(line, " -DDEPTH=", DefaultDepth(dpy, DefaultScreen(dpy)));
 148
 149     putidef(line, " -DSCR_WIDTH=", WidthOfScreen(DefaultScreenOfDisplay(dpy)));
 150     putidef(line, " -DSCR_HEIGHT=",
 151             HeightOfScreen(DefaultScreenOfDisplay(dpy)));
 152
 153     #if 0
 154     strcpy(buffer, path);
 155     buf = strrchr(buffer, '/');
 156     if (buf) *buf = 0; /* trunc filename */
 157     putdef(line, " -I", buffer);
 158     #endif
 159
 160
 161
 162     /* this should be done just once, but it works this way */
 163     strcpy(buffer, DEF_CONFIG_PATHS);
 164     buf = strtok(buffer, ":");
 165
 166     do {
 167       char fullpath[MAXLINE];
 168
 169       if (buf[0]!='~') {
 170         strcpy(fullpath, buf);
 171       } else {
 172         char * wgethomedir();
 173         /* home is statically allocated. Don't free it! */
 174         char *home = wgethomedir();
 175
 176         strcpy(fullpath, home);
 177         strcat(fullpath, &(buf[1]));
 178       }
 179
 180       putdef(line, " -I", fullpath);
 181
 182     } while ((buf = strtok(NULL, ":"))!=NULL);
 183
 184 #undef arg
 185 #ifdef DEBUG
 186     puts("CPP ARGS");
 187     puts(line);
 188 #endif
 189     return line;
 190 }
 191 #endif /* USECPP */
 192
 193
 194 WWindow*
 195 NextFocusWindow(WScreen *scr)
 196 {
 197     WWindow *tmp, *wwin, *closest, *min;
 198     Window d;
 199
 200     if (!(wwin = scr->focused_window))
 201         return NULL;
 202     tmp = wwin->prev;
 203     closest = NULL;
 204     min = wwin;
 205     d = 0xffffffff;
 206     while (tmp) {
 207         if (wWindowCanReceiveFocus(tmp)
 208             && (!WFLAGP(tmp, skip_window_list)|| tmp->flags.internal_window)) {
 209             if (min->client_win > tmp->client_win)
 210               min = tmp;
 211             if (tmp->client_win > wwin->client_win
 212                 && (!closest
 213                     || (tmp->client_win - wwin->client_win) < d)) {
 214                 closest = tmp;
 215                 d = tmp->client_win - wwin->client_win;
 216             }
 217         }
 218         tmp = tmp->prev;
 219     }
 220     if (!closest||closest==wwin)
 221       return min;
 222     return closest;
 223 }
 224
 225
 226 WWindow*
 227 PrevFocusWindow(WScreen *scr)
 228 {
 229     WWindow *tmp, *wwin, *closest, *max;
 230     Window d;
 231
 232     if (!(wwin = scr->focused_window))
 233         return NULL;
 234     tmp = wwin->prev;
 235     closest = NULL;
 236     max = wwin;
 237     d = 0xffffffff;
 238     while (tmp) {
 239         if (wWindowCanReceiveFocus(tmp) &&
 240             (!WFLAGP(tmp, skip_window_list) || tmp->flags.internal_window)) {
 241             if (max->client_win < tmp->client_win)
 242               max = tmp;
 243             if (tmp->client_win < wwin->client_win
 244                 && (!closest
 245                     || (wwin->client_win - tmp->client_win) < d)) {
 246                 closest = tmp;
 247                 d = wwin->client_win - tmp->client_win;
 248             }
 249         }
 250         tmp = tmp->prev;
 251     }
 252     if (!closest||closest==wwin)
 253       return max;
 254     return closest;
 255 }
 256
 257
 258
 259 #if 0
 260 /*
 261  * Is win2 below win1?
 262  */
 263 static Bool
 264 isBelow(WWindow *win1, WWindow *win2)
 265 {
 266     int i;
 267     WCoreWindow *tmp;
 268
 269     tmp = win1->frame->core->stacking->under;
 270     while (tmp) {
 271         if (tmp == win2->frame->core)
 272             return True;
 273         tmp = tmp->stacking->under;
 274     }
 275
 276     for (i=win1->frame->core->stacking->window_level-1; i>=0; i--) {
 277         tmp = win1->screen_ptr->stacking_list[i];
 278         while (tmp) {
 279             if (tmp == win2->frame->core)
 280                 return True;
 281             tmp = tmp->stacking->under;
 282         }
 283     }
 284     return True;
 285 }
 286 #endif
 287
 288
 289
 290 /*
 291  *  XFetchName Wrapper
 292  *
 293  */
 294 Bool wFetchName(dpy, win, winname)
 295 Display *dpy;
 296 Window win;
 297 char **winname;
 298 {
 299     XTextProperty text_prop;
 300     char **list;
 301     int num;
 302
 303     if (XGetWMName(dpy, win, &text_prop)) {
 304         if (text_prop.value && text_prop.nitems > 0) {
 305             if (text_prop.encoding == XA_STRING) {
 306                 *winname = wstrdup((char *)text_prop.value);
 307                 XFree(text_prop.value);
 308             } else {
 309                 text_prop.nitems = strlen((char *)text_prop.value);
 310                 if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
 311                     Success && num > 0 && *list) {
 312                     XFree(text_prop.value);
 313                     *winname = wstrdup(*list);
 314                     XFreeStringList(list);
 315                 } else {
 316                     *winname = wstrdup((char *)text_prop.value);
 317                     XFree(text_prop.value);
 318                 }
 319             }
 320         } else {
 321             /* the title is set, but it was set to none */
 322             *winname = wstrdup("");
 323         }
 324         return True;
 325     } else {
 326         /* the hint is probably not set */
 327         *winname = NULL;
 328
 329         return False;
 330     }
 331 }
 332
 333 /*
 334  *  XGetIconName Wrapper
 335  *
 336  */
 337
 338 Bool wGetIconName(dpy, win, iconname)
 339 Display *dpy;
 340 Window win;
 341 char **iconname;
 342 {
 343     XTextProperty text_prop;
 344     char **list;
 345     int num;
 346
 347     if (XGetWMIconName(dpy, win, &text_prop) != 0 && text_prop.value
 348         && text_prop.nitems > 0) {
 349         if (text_prop.encoding == XA_STRING)
 350             *iconname = (char *)text_prop.value;
 351         else {
 352             text_prop.nitems = strlen((char *)text_prop.value);
 353             if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
 354                 Success && num > 0 && *list) {
 355                 XFree(text_prop.value);
 356                 *iconname = wstrdup(*list);
 357                 XFreeStringList(list);
 358             } else
 359                 *iconname = (char *)text_prop.value;
 360         }
 361         return True;
 362     }
 363     *iconname = NULL;
 364     return False;
 365 }
 366
 367
 368 #if 0
 369 #ifdef I18N_MB
 370 void
 371 wTextWidth(XFontSet font, char *text, int length)
 372 {
 373     XRectangle rect;
 374     XRectangle AIXsucks;
 375
 376     XmbTextExtents(font, text, length, &AIXsucks, &rec);
 377
 378     return rect.width;
 379 }
 380 #else
 381 void
 382 wTextWidth(XFontStruct *font, char *text, int length)
 383 {
 384     return XTextWidth(font, text, length);
 385 }
 386 #endif
 387 #endif
 388
 389 static void
 390 eatExpose()
 391 {
 392     XEvent event, foo;
 393
 394     /* compress all expose events into a single one */
 395
 396     if (XCheckMaskEvent(dpy, ExposureMask, &event)) {
 397         /* ignore other exposure events for this window */
 398         while (XCheckWindowEvent(dpy, event.xexpose.window, ExposureMask,
 399                                &foo));
 400         /* eat exposes for other windows */
 401         eatExpose();
 402
 403         event.xexpose.count = 0;
 404         XPutBackEvent(dpy, &event);
 405     }
 406 }
 407
 408
 409 void
 410 SlideWindow(Window win, int from_x, int from_y, int to_x, int to_y)
 411 {
 412     time_t time0 = time(NULL);
 413     float dx, dy, x=from_x, y=from_y, sx, sy, px, py;
 414     int dx_is_bigger=0;
 415
 416     /* animation parameters */
 417     static struct {
 418         int delay;
 419         int steps;
 420         int slowdown;
 421     } apars[5] = {
 422         {ICON_SLIDE_DELAY_UF, ICON_SLIDE_STEPS_UF, ICON_SLIDE_SLOWDOWN_UF},
 423         {ICON_SLIDE_DELAY_F, ICON_SLIDE_STEPS_F, ICON_SLIDE_SLOWDOWN_F},
 424         {ICON_SLIDE_DELAY_M, ICON_SLIDE_STEPS_M, ICON_SLIDE_SLOWDOWN_M},
 425         {ICON_SLIDE_DELAY_S, ICON_SLIDE_STEPS_S, ICON_SLIDE_SLOWDOWN_S},
 426         {ICON_SLIDE_DELAY_U, ICON_SLIDE_STEPS_U, ICON_SLIDE_SLOWDOWN_U}};
 427
 428
 429
 430     dx = (float)(to_x-from_x);
 431     dy = (float)(to_y-from_y);
 432     sx = (dx == 0 ? 0 : fabs(dx)/dx);
 433     sy = (dy == 0 ? 0 : fabs(dy)/dy);
 434
 435     if (fabs(dx) > fabs(dy)) {
 436         dx_is_bigger = 1;
 437     }
 438
 439     if (dx_is_bigger) {
 440         px = dx / apars[(int)wPreferences.icon_slide_speed].slowdown;
 441         if (px < apars[(int)wPreferences.icon_slide_speed].steps && px > 0)
 442             px = apars[(int)wPreferences.icon_slide_speed].steps;
 443         else if (px > -apars[(int)wPreferences.icon_slide_speed].steps && px < 0)
 444             px = -apars[(int)wPreferences.icon_slide_speed].steps;
 445         py = (sx == 0 ? 0 : px*dy/dx);
 446     } else {
 447         py = dy / apars[(int)wPreferences.icon_slide_speed].slowdown;
 448         if (py < apars[(int)wPreferences.icon_slide_speed].steps && py > 0)
 449             py = apars[(int)wPreferences.icon_slide_speed].steps;
 450         else if (py > -apars[(int)wPreferences.icon_slide_speed].steps && py < 0)
 451             py = -apars[(int)wPreferences.icon_slide_speed].steps;
 452         px = (sy == 0 ? 0 : py*dx/dy);
 453     }
 454
 455     while (x != to_x || y != to_y) {
 456         x += px;
 457         y += py;
 458         if ((px<0 && (int)x < to_x) || (px>0 && (int)x > to_x))
 459             x = (float)to_x;
 460         if ((py<0 && (int)y < to_y) || (py>0 && (int)y > to_y))
 461             y = (float)to_y;
 462
 463         if (dx_is_bigger) {
 464             px = px * (1.0 - 1/(float)apars[(int)wPreferences.icon_slide_speed].slowdown);
 465             if (px < apars[(int)wPreferences.icon_slide_speed].steps && px > 0)
 466                 px = apars[(int)wPreferences.icon_slide_speed].steps;
 467             else if (px > -apars[(int)wPreferences.icon_slide_speed].steps && px < 0)
 468                 px = -apars[(int)wPreferences.icon_slide_speed].steps;
 469             py = (sx == 0 ? 0 : px*dy/dx);
 470         } else {
 471             py = py * (1.0 - 1/(float)apars[(int)wPreferences.icon_slide_speed].slowdown);
 472             if (py < apars[(int)wPreferences.icon_slide_speed].steps && py > 0)
 473                 py = apars[(int)wPreferences.icon_slide_speed].steps;
 474             else if (py > -apars[(int)wPreferences.icon_slide_speed].steps && py < 0)
 475                 py = -apars[(int)wPreferences.icon_slide_speed].steps;
 476             px = (sy == 0 ? 0 : py*dx/dy);
 477         }
 478
 479         XMoveWindow(dpy, win, (int)x, (int)y);
 480         XFlush(dpy);
 481         if (apars[(int)wPreferences.icon_slide_speed].delay > 0) {
 482             wusleep(apars[(int)wPreferences.icon_slide_speed].delay*1000L);
 483         }
 484         if (time(NULL) - time0 > MAX_ANIMATION_TIME)
 485             break;
 486     }
 487     XMoveWindow(dpy, win, to_x, to_y);
 488
 489     XSync(dpy, 0);
 490     /* compress expose events */
 491     eatExpose();
 492 }
 493
 494
 495 char*
 496 ShrinkString(WFont *font, char *string, int width)
 497 {
 498 #ifndef I18N_MB
 499     int w, w1=0;
 500     int p;
 501     char *pos;
 502     char *text;
 503     int p1, p2, t;
 504 #endif
 505
 506 #ifdef I18N_MB
 507     return wstrdup(string);
 508 #else
 509     p = strlen(string);
 510     w = wTextWidth(font->font, string, p);
 511     text = wmalloc(strlen(string)+8);
 512     strcpy(text, string);
 513     if (w<=width)
 514       return text;
 515
 516     pos = strchr(text, ' ');
 517     if (!pos)
 518       pos = strchr(text, ':');
 519
 520     if (pos) {
 521         *pos = 0;
 522         p = strlen(text);
 523         w1=wTextWidth(font->font, text, p);
 524         if (w1>width) {
 525             w1 = 0;
 526             p = 0;
 527             *pos = ' ';
 528             *text = 0;
 529         } else {
 530             *pos = 0;
 531             width -= w1;
 532             p++;
 533         }
 534         string += p;
 535         p=strlen(string);
 536     } else {
 537         *text=0;
 538     }
 539     strcat(text, "...");
 540     width -= wTextWidth(font->font, "...", 3);
 541
 542     pos = string;
 543     p1=0;
 544     p2=p;
 545     t = (p2-p1)/2;
 546     while (p2>p1 && p1!=t) {
 547         w = wTextWidth(font->font, &string[p-t], t);
 548         if (w>width) {
 549             p2 = t;
 550             t = p1+(p2-p1)/2;
 551         } else if (w<width) {
 552             p1 = t;
 553             t = p1+(p2-p1)/2;
 554         } else
 555           p2=p1=t;
 556     }
 557     strcat(text, &string[p-p1]);
 558     return text;
 559 #endif /* I18N_MB */
 560 }
 561
 562
 563 char*
 564 FindImage(char *paths, char *file)
 565 {
 566     char *tmp, *path;
 567
 568     tmp = strrchr(file, ':');
 569     if (tmp) {
 570         *tmp = 0;
 571         path = wfindfile(paths, file);
 572         *tmp = ':';
 573     }
 574     if (!tmp || !path) {
 575         path = wfindfile(paths, file);
 576     }
 577
 578     return path;
 579 }
 580
 581
 582 char*
 583 FlattenStringList(char **list, int count)
 584 {
 585     int i, j;
 586     char *flat_string, *wspace;
 587
 588     j = 0;
 589     for (i=0; i<count; i++) {
 590         if (list[i]!=NULL && list[i][0]!=0) {
 591             j += strlen(list[i]);
 592             if (strpbrk(list[i], " \t"))
 593                 j += 2;
 594         }
 595     }
 596
 597     flat_string = malloc(j+count+1);
 598     if (!flat_string) {
 599         return NULL;
 600     }
 601
 602     *flat_string = 0;
 603     for (i=0; i<count; i++) {
 604         if (list[i]!=NULL && list[i][0]!=0) {
 605             if (i>0)
 606                 strcat(flat_string, " ");
 607             wspace = strpbrk(list[i], " \t");
 608             if (wspace)
 609                 strcat(flat_string, "\"");
 610             strcat(flat_string, list[i]);
 611             if (wspace)
 612                 strcat(flat_string, "\"");
 613         }
 614     }
 615
 616     return flat_string;
 617 }
 618
 619
 620
 621 /*
 622  *----------------------------------------------------------------------
 623  * ParseCommand --
 624  *      Divides a command line into a argv/argc pair.
 625  *----------------------------------------------------------------------
 626  */
 627 #define PRC_ALPHA       0
 628 #define PRC_BLANK       1
 629 #define PRC_ESCAPE      2
 630 #define PRC_DQUOTE      3
 631 #define PRC_EOS         4
 632 #define PRC_SQUOTE      5
 633
 634 typedef struct {
 635     short nstate;
 636     short output;
 637 } DFA;
 638
 639
 640 static DFA mtable[9][6] = {
 641     {{3,1},{0,0},{4,0},{1,0},{8,0},{6,0}},
 642     {{1,1},{1,1},{2,0},{3,0},{5,0},{1,1}},
 643     {{1,1},{1,1},{1,1},{1,1},{5,0},{1,1}},
 644     {{3,1},{5,0},{4,0},{1,0},{5,0},{6,0}},
 645     {{3,1},{3,1},{3,1},{3,1},{5,0},{3,1}},
 646     {{-1,-1},{0,0},{0,0},{0,0},{0,0},{0,0}}, /* final state */
 647     {{6,1},{6,1},{7,0},{6,1},{5,0},{3,0}},
 648     {{6,1},{6,1},{6,1},{6,1},{5,0},{6,1}},
 649     {{-1,-1},{0,0},{0,0},{0,0},{0,0},{0,0}}, /* final state */
 650 };
 651
 652 char*
 653 next_token(char *word, char **next)
 654 {
 655     char *ptr;
 656     char *ret, *t;
 657     int state, ctype;
 658
 659     t = ret = wmalloc(strlen(word)+1);
 660     ptr = word;
 661
 662     state = 0;
 663     *t = 0;
 664     while (1) {
 665         if (*ptr==0)
 666             ctype = PRC_EOS;
 667         else if (*ptr=='\\')
 668             ctype = PRC_ESCAPE;
 669         else if (*ptr=='"')
 670             ctype = PRC_DQUOTE;
 671         else if (*ptr=='\'')
 672             ctype = PRC_SQUOTE;
 673         else if (*ptr==' ' || *ptr=='\t')
 674             ctype = PRC_BLANK;
 675         else
 676             ctype = PRC_ALPHA;
 677
 678         if (mtable[state][ctype].output) {
 679             *t = *ptr; t++;
 680             *t = 0;
 681         }
 682         state = mtable[state][ctype].nstate;
 683         ptr++;
 684         if (mtable[state][0].output<0) {
 685             break;
 686         }
 687     }
 688
 689     if (*ret==0)
 690         t = NULL;
 691     else
 692         t = wstrdup(ret);
 693
 694     free(ret);
 695
 696     if (ctype==PRC_EOS)
 697         *next = NULL;
 698     else
 699         *next = ptr;
 700
 701     return t;
 702 }
 703
 704
 705 void
 706 ParseCommand(char *command, char ***argv, int *argc)
 707 {
 708     LinkedList *list = NULL;
 709     char *token, *line;
 710     int count, i;
 711
 712     line = command;
 713     do {
 714         token = next_token(line, &line);
 715         if (token) {
 716             list = list_cons(token, list);
 717         }
 718     } while (token!=NULL && line!=NULL);
 719
 720     count = list_length(list);
 721     *argv = wmalloc(sizeof(char*)*count);
 722     i = count;
 723     while (list!=NULL) {
 724         (*argv)[--i] = list->head;
 725         list_remove_head(&list);
 726     }
 727     *argc = count;
 728 }
 729
 730 #if 0
 731 static void
 732 timeup(void *foo)
 733 {
 734     *(int*)foo=1;
 735 }
 736 #endif
 737 static char*
 738 getselection(WScreen *scr)
 739 {
 740     char *tmp;
 741     extern char *W_GetTextSelection(); /* in WINGs */
 742
 743     tmp = W_GetTextSelection(scr->wmscreen, XA_PRIMARY);
 744     if (!tmp)
 745         tmp = W_GetTextSelection(scr->wmscreen, XA_CUT_BUFFER0);
 746     return tmp;
 747
 748 #if 0
 749     XEvent event;
 750     int timeover=0;
 751     WMHandlerID *id;
 752
 753 #ifdef DEBUG
 754     puts("getting selection");
 755 #endif
 756     RequestSelection(dpy, scr->no_focus_win, LastTimestamp);
 757     /* timeout on 1 sec. */
 758     id = WMAddTimerHandler(1000, timeup, &timeover);
 759     while (!timeover) {
 760         WMNextEvent(dpy, &event);
 761         if (event.type == SelectionNotify
 762             && event.xany.window==scr->no_focus_win) {
 763             WMDeleteTimerHandler(id);
 764 #ifdef DEBUG
 765             puts("selection ok");
 766 #endif
 767             return GetSelection(dpy, scr->no_focus_win);
 768         } else {
 769             WMHandleEvent(&event);
 770         }
 771     }
 772     wwarning(_("selection timed-out"));
 773     return NULL;
 774 #endif
 775 }
 776
 777
 778 static char*
 779 getuserinput(WScreen *scr, char *line, int *ptr)
 780 {
 781     char *ret;
 782     char *title;
 783     char *prompt;
 784     int j, state;
 785     int begin;
 786     char tbuffer[256], pbuffer[256];
 787
 788     title = _("Program Arguments");
 789     prompt = _("Enter command arguments:");
 790     ret = NULL;
 791
 792 #define _STARTING 0
 793 #define _TITLE 1
 794 #define _PROMPT 2
 795 #define _DONE 3
 796
 797     state = _STARTING;
 798     j = 0;
 799     for (; line[*ptr]!=0 && state!=_DONE; (*ptr)++) {
 800         switch (state) {
 801          case _STARTING:
 802             if (line[*ptr]=='(') {
 803                 state = _TITLE;
 804                 begin = *ptr+1;
 805             } else {
 806                 state = _DONE;
 807             }
 808             break;
 809
 810          case _TITLE:
 811             if (j <= 0 && line[*ptr]==',') {
 812
 813                 j = 0;
 814                 if (*ptr > begin) {
 815                     strncpy(tbuffer, &line[begin], WMIN(*ptr-begin, 255));
 816                     tbuffer[WMIN(*ptr-begin, 255)] = 0;
 817                     title = (char*)tbuffer;
 818                 }
 819                 begin = *ptr+1;
 820                 state = _PROMPT;
 821
 822             } else if (j <= 0 && line[*ptr]==')') {
 823
 824                 if (*ptr > begin) {
 825                     strncpy(tbuffer, &line[begin], WMIN(*ptr-begin, 255));
 826                     tbuffer[WMIN(*ptr-begin, 255)] = 0;
 827                     title = (char*)tbuffer;
 828                 }
 829                 state = _DONE;
 830
 831             } else if (line[*ptr]=='(') {
 832                 j++;
 833             } else if (line[*ptr]==')') {
 834                 j--;
 835             }
 836
 837             break;
 838
 839          case _PROMPT:
 840             if (line[*ptr]==')' && j==0) {
 841
 842                 if (*ptr-begin > 1) {
 843                     strncpy(pbuffer, &line[begin], WMIN(*ptr-begin, 255));
 844                     pbuffer[WMIN(*ptr-begin, 255)] = 0;
 845                     prompt = (char*)pbuffer;
 846                 }
 847                 state = _DONE;
 848             } else if (line[*ptr]=='(')
 849                     j++;
 850             else if (line[*ptr]==')')
 851                 j--;
 852             break;
 853         }
 854     }
 855     (*ptr)--;
 856 #undef _STARTING
 857 #undef _TITLE
 858 #undef _PROMPT
 859 #undef _DONE
 860
 861     if (!wInputDialog(scr, title, prompt, &ret))
 862         return NULL;
 863     else
 864         return ret;
 865 }
 866
 867
 868 #ifdef OFFIX_DND
 869 static char*
 870 get_dnd_selection(WScreen *scr)
 871 {
 872     XTextProperty text_ret;
 873     int result;
 874     char **list;
 875     char *flat_string;
 876     int count;
 877
 878 #ifdef XDE_DND
 879     if(scr->xdestring) {
 880         return (wstrdup(scr->xdestring));
 881     }
 882 #endif
 883     result=XGetTextProperty(dpy, scr->root_win, &text_ret, _XA_DND_SELECTION);
 884
 885     if (result==0 || text_ret.value==NULL || text_ret.encoding==None
 886         || text_ret.format==0 || text_ret.nitems == 0) {
 887         wwarning(_("unable to get dropped data from DND drop"));
 888         return NULL;
 889     }
 890
 891     XTextPropertyToStringList(&text_ret, &list, &count);
 892
 893     if (!list || count<1) {
 894         XFree(text_ret.value);
 895         wwarning(_("error getting dropped data from DND drop"));
 896         return NULL;
 897     }
 898
 899     flat_string = FlattenStringList(list, count);
 900     if (!flat_string) {
 901         wwarning(_("out of memory while getting data from DND drop"));
 902     }
 903
 904     XFreeStringList(list);
 905     XFree(text_ret.value);
 906     return flat_string;
 907 }
 908 #endif /* OFFIX_DND */
 909
 910
 911 #define S_NORMAL 0
 912 #define S_ESCAPE 1
 913 #define S_OPTION 2
 914
 915 /*
 916  * state        input   new-state       output
 917  * NORMAL       %       OPTION          <nil>
 918  * NORMAL       \       ESCAPE          <nil>
 919  * NORMAL       etc.    NORMAL          <input>
 920  * ESCAPE       any     NORMAL          <input>
 921  * OPTION       s       NORMAL          <selection buffer>
 922  * OPTION       w       NORMAL          <selected window id>
 923  * OPTION       a       NORMAL          <input text>
 924  * OPTION       d       NORMAL          <OffiX DND selection object>
 925  * OPTION       W       NORMAL          <current workspace>
 926  * OPTION       etc.    NORMAL          %<input>
 927  */
 928 #define TMPBUFSIZE 64
 929 char*
 930 ExpandOptions(WScreen *scr, char *cmdline)
 931 {
 932     int ptr, optr, state, len, olen;
 933     char *out, *nout;
 934     char *selection=NULL;
 935     char *user_input=NULL;
 936 #ifdef OFFIX_DND
 937     char *dropped_thing=NULL;
 938 #endif
 939     char tmpbuf[TMPBUFSIZE];
 940     int slen;
 941
 942     len = strlen(cmdline);
 943     olen = len+1;
 944     out = malloc(olen);
 945     if (!out) {
 946         wwarning(_("out of memory during expansion of \"%s\""));
 947         return NULL;
 948     }
 949     *out = 0;
 950     ptr = 0;                           /* input line pointer */
 951     optr = 0;                          /* output line pointer */
 952     state = S_NORMAL;
 953     while (ptr < len) {
 954         switch (state) {
 955          case S_NORMAL:
 956             switch (cmdline[ptr]) {
 957              case '\\':
 958                 state = S_ESCAPE;
 959                 break;
 960              case '%':
 961                 state = S_OPTION;
 962                 break;
 963              default:
 964                 state = S_NORMAL;
 965                 out[optr++]=cmdline[ptr];
 966                 break;
 967             }
 968             break;
 969          case S_ESCAPE:
 970             switch (cmdline[ptr]) {
 971              case 'n':
 972                 out[optr++]=10;
 973                 break;
 974
 975              case 'r':
 976                 out[optr++]=13;
 977                 break;
 978
 979              case 't':
 980                 out[optr++]=9;
 981                 break;
 982
 983              default:
 984                 out[optr++]=cmdline[ptr];
 985             }
 986             state = S_NORMAL;
 987             break;
 988          case S_OPTION:
 989             state = S_NORMAL;
 990             switch (cmdline[ptr]) {
 991              case 'w':
 992                 if (scr->focused_window
 993                     && scr->focused_window->flags.focused) {
 994                     sprintf(tmpbuf, "0x%x",
 995                             (unsigned int)scr->focused_window->client_win);
 996                     slen = strlen(tmpbuf);
 997                     olen += slen;
 998                     nout = realloc(out,olen);
 999                     if (!nout) {
1000                         wwarning(_("out of memory during expansion of \"%w\""));
1001                         goto error;
1002                     }
1003                     out = nout;
1004                     strcat(out,tmpbuf);
1005                     optr+=slen;
1006                 } else {
1007                     out[optr++]=' ';
1008                 }
1009                 break;
1010
1011              case 'W':
1012                 sprintf(tmpbuf, "0x%x",
1013                         (unsigned int)scr->current_workspace + 1);
1014                 slen = strlen(tmpbuf);
1015                 olen += slen;
1016                 nout = realloc(out,olen);
1017                 if (!nout) {
1018                     wwarning(_("out of memory during expansion of \"%W\""));
1019                     goto error;
1020                 }
1021                 out = nout;
1022                 strcat(out,tmpbuf);
1023                 optr+=slen;
1024                 break;
1025
1026              case 'a':
1027                 ptr++;
1028                 user_input = getuserinput(scr, cmdline, &ptr);
1029                 if (user_input) {
1030                     slen = strlen(user_input);
1031                     olen += slen;
1032                     nout = realloc(out,olen);
1033                     if (!nout) {
1034                         wwarning(_("out of memory during expansion of \"%a\""));
1035                         goto error;
1036                     }
1037                     out = nout;
1038                     strcat(out,user_input);
1039                     optr+=slen;
1040                 } else {
1041                     /* Not an error, but user has Canceled the dialog box.
1042                      * This will make the command to not be performed. */
1043                     goto error;
1044                 }
1045                 break;
1046
1047 #ifdef OFFIX_DND
1048              case 'd':
1049                 if (!dropped_thing) {
1050                     dropped_thing = get_dnd_selection(scr);
1051                 }
1052                 if (!dropped_thing) {
1053                     scr->flags.dnd_data_convertion_status = 1;
1054                     goto error;
1055                 }
1056                 slen = strlen(dropped_thing);
1057                 olen += slen;
1058                 nout = realloc(out,olen);
1059                 if (!nout) {
1060                     wwarning(_("out of memory during expansion of \"%d\""));
1061                     goto error;
1062                 }
1063                 out = nout;
1064                 strcat(out,dropped_thing);
1065                 optr+=slen;
1066                 break;
1067 #endif /* OFFIX_DND */
1068
1069              case 's':
1070                 if (!selection) {
1071                     selection = getselection(scr);
1072                 }
1073                 if (!selection) {
1074                     wwarning(_("selection not available"));
1075                     goto error;
1076                 }
1077                 slen = strlen(selection);
1078                 olen += slen;
1079                 nout = realloc(out,olen);
1080                 if (!nout) {
1081                     wwarning(_("out of memory during expansion of \"%s\""));
1082                     goto error;
1083                 }
1084                 out = nout;
1085                 strcat(out,selection);
1086                 optr+=slen;
1087                 break;
1088              default:
1089                 out[optr++]='%';
1090                 out[optr++]=cmdline[ptr];
1091             }
1092             break;
1093         }
1094         out[optr]=0;
1095         ptr++;
1096     }
1097     if (selection)
1098       XFree(selection);
1099     return out;
1100
1101     error:
1102     free(out);
1103     if (selection)
1104       XFree(selection);
1105     return NULL;
1106 }
1107
1108
1109 /* We don't care for upper/lower case in comparing the keys; so we
1110    have to define our own comparison function here */
1111 BOOL
1112 StringCompareHook(proplist_t pl1, proplist_t pl2)
1113 {
1114     char *str1, *str2;
1115
1116     str1 = PLGetString(pl1);
1117     str2 = PLGetString(pl2);
1118
1119     if (strcasecmp(str1, str2)==0)
1120       return YES;
1121     else
1122       return NO;
1123 }
1124
1125
1126 /* feof doesn't seem to work on pipes */
1127 int
1128 IsEof(FILE * stream)
1129 {
1130     static struct stat stinfo;
1131
1132     fstat(fileno(stream), &stinfo);
1133     return ((S_ISFIFO(stinfo.st_dev) && stinfo.st_size == 0) ||
1134             feof(stream));
1135 }
1136
1137
1138 void
1139 ParseWindowName(proplist_t value, char **winstance, char **wclass, char *where)
1140 {
1141     char *name;
1142
1143     *winstance = *wclass = NULL;
1144
1145     if (!PLIsString(value)) {
1146         wwarning(_("bad window name value in %s state info"), where);
1147         return;
1148     }
1149
1150     name = PLGetString(value);
1151     if (!name || strlen(name)==0) {
1152         wwarning(_("bad window name value in %s state info"), where);
1153         return;
1154     }
1155
1156     UnescapeWM_CLASS(name, winstance, wclass);
1157 }
1158
1159
1160 #if 0
1161 static char*
1162 keysymToString(KeySym keysym, unsigned int state)
1163 {
1164     XKeyEvent kev;
1165     char *buf = wmalloc(20);
1166     int count;
1167
1168     kev.display = dpy;
1169     kev.type = KeyPress;
1170     kev.send_event = False;
1171     kev.window = DefaultRootWindow(dpy);
1172     kev.root = DefaultRootWindow(dpy);
1173     kev.same_screen = True;
1174     kev.subwindow = kev.root;
1175     kev.serial = 0x12344321;
1176     kev.time = CurrentTime;
1177     kev.state = state;
1178     kev.keycode = XKeysymToKeycode(dpy, keysym);
1179     count = XLookupString(&kev, buf, 19, NULL, NULL);
1180     buf[count] = 0;
1181
1182     return buf;
1183 }
1184 #endif
1185
1186 char*
1187 GetShortcutString(char *text)
1188 {
1189     char *buffer = NULL;
1190     char *k;
1191     int modmask = 0;
1192 /*    KeySym ksym;*/
1193     int control = 0;
1194     char *tmp;
1195
1196     tmp = text = wstrdup(text);
1197
1198     /* get modifiers */
1199     while ((k = strchr(text, '+'))!=NULL) {
1200         int mod;
1201
1202         *k = 0;
1203         mod = wXModifierFromKey(text);
1204         if (mod<0) {
1205             return wstrdup("bug");
1206         }
1207
1208         modmask |= mod;
1209
1210         if (strcasecmp(text, "Meta")==0) {
1211             buffer = wstrappend(buffer, "M+");
1212         } else if (strcasecmp(text, "Alt")==0) {
1213             buffer = wstrappend(buffer, "A+");
1214         } else if (strcasecmp(text, "Shift")==0) {
1215             buffer = wstrappend(buffer, "Sh+");
1216         } else if (strcasecmp(text, "Mod1")==0) {
1217             buffer = wstrappend(buffer, "M1+");
1218         } else if (strcasecmp(text, "Mod2")==0) {
1219             buffer = wstrappend(buffer, "M2+");
1220         } else if (strcasecmp(text, "Mod3")==0) {
1221             buffer = wstrappend(buffer, "M3+");
1222         } else if (strcasecmp(text, "Mod4")==0) {
1223             buffer = wstrappend(buffer, "M4+");
1224         } else if (strcasecmp(text, "Mod5")==0) {
1225             buffer = wstrappend(buffer, "M5+");
1226         } else if (strcasecmp(text, "Control")==0) {
1227             control = 1;
1228         } else {
1229             buffer = wstrappend(buffer, text);
1230         }
1231         text = k+1;
1232     }
1233
1234     if (control) {
1235         buffer = wstrappend(buffer, "^");
1236     }
1237     buffer = wstrappend(buffer, text);
1238
1239     /* get key */
1240 /*    ksym = XStringToKeysym(text);
1241     tmp = keysymToString(ksym, modmask);
1242     puts(tmp);
1243     buffer = wstrappend(buffer, tmp);
1244 */
1245     free(tmp);
1246
1247     return buffer;
1248 }
1249
1250
1251 char*
1252 EscapeWM_CLASS(char *name, char *class)
1253 {
1254     char *ret;
1255     char *ename = NULL, *eclass = NULL;
1256     int i, j, l;
1257
1258     if (!name && !class)
1259         return NULL;
1260
1261     if (name) {
1262         l = strlen(name);
1263         ename = wmalloc(l*2);
1264         j = 0;
1265         for (i=0; i<l; i++) {
1266             if (name[i]=='\\') {
1267                 ename[j++] = '\\';
1268             } else if (name[i]=='.') {
1269                 ename[j++] = '\\';
1270             }
1271             ename[j++] = name[i];
1272         }
1273         ename[j] = 0;
1274     }
1275     if (class) {
1276         l = strlen(class);
1277         eclass = wmalloc(l*2);
1278         j = 0;
1279         for (i=0; i<l; i++) {
1280             if (class[i]=='\\') {
1281                 eclass[j++] = '\\';
1282             } else if (class[i]=='.') {
1283                 eclass[j++] = '\\';
1284             }
1285             eclass[j++] = class[i];
1286         }
1287         eclass[j] = 0;
1288     }
1289
1290     if (ename && eclass) {
1291         ret = wmalloc(strlen(ename)+strlen(eclass)+4);
1292         sprintf(ret, "%s.%s", ename, eclass);
1293         free(ename);
1294         free(eclass);
1295     } else if (ename) {
1296         ret = wstrdup(ename);
1297         free(ename);
1298     } else {
1299         ret = wstrdup(eclass);
1300         free(eclass);
1301     }
1302
1303     return ret;
1304 }
1305
1306
1307 void
1308 UnescapeWM_CLASS(char *str, char **name, char **class)
1309 {
1310     int i, j, k, dot;
1311     Bool esc;
1312
1313     j = strlen(str);
1314     *name = wmalloc(j);
1315     **name = 0;
1316     *class = wmalloc(j);
1317     **class = 0;
1318
1319     /* separate string in 2 parts */
1320     esc = False;
1321     dot = 0;
1322     for (i = 0; i < j; i++) {
1323         if (!esc) {
1324             if (str[i]=='\\') {
1325                 esc = True;
1326             } else if (str[i]=='.') {
1327                 dot = i;
1328                 break;
1329             }
1330         } else {
1331             esc = False;
1332         }
1333     }
1334
1335     /* unescape strings */
1336     esc = False;
1337     k = 0;
1338     for (i = 0; i < dot; i++) {
1339         if (!esc) {
1340             if (str[i]=='\\') {
1341                 esc = True;
1342             } else {
1343                 (*name)[k++] = str[i];
1344             }
1345         } else {
1346             (*name)[k++] = str[i];
1347             esc = False;
1348         }
1349     }
1350     (*name)[k] = 0;
1351
1352     esc = False;
1353     k = 0;
1354     for (i = dot+1; i<j; i++) {
1355         if (!esc) {
1356             if (str[i]=='\\') {
1357                 esc = True;
1358             } else {
1359                 (*class)[k++] = str[i];
1360             }
1361         } else {
1362             esc = False;
1363         }
1364     }
1365     (*class)[k] = 0;
1366
1367     if (!*name) {
1368         free(*name);
1369         *name = NULL;
1370     }
1371     if (!*class) {
1372         free(*class);
1373         *class = NULL;
1374     }
1375 }
1376
1377
1378
1379 void
1380 SendHelperMessage(WScreen *scr, char type, int workspace, char *msg)
1381 {
1382     unsigned char *buffer;
1383     int len;
1384     int i;
1385     char buf[16];
1386
1387     if (!scr->flags.backimage_helper_launched) {
1388         return;
1389     }
1390
1391     len = (msg ? strlen(msg) : 0) + (workspace >=0 ? 4 : 0) + 1 ;
1392     buffer = wmalloc(len+5);
1393     sprintf(buf, "%4i", len);
1394     memcpy(buffer, buf, 4);
1395     buffer[4] = type;
1396     i = 5;
1397     if (workspace >= 0) {
1398         sprintf(buf, "%4i", workspace);
1399         memcpy(&buffer[i], buf, 4);
1400         i += 4;
1401         buffer[i] = 0;
1402     }
1403     if (msg)
1404         strcpy(&buffer[i], msg);
1405
1406     if (write(scr->helper_fd, buffer, len+4) < 0) {
1407         wsyserror(_("could not send message to background image helper"));
1408     }
1409     free(buffer);
1410 }
1411
1412
1413 void
1414 ExecuteShellCommand(WScreen *scr, char *command)
1415 {
1416     static char *shell = NULL;
1417     pid_t pid;
1418
1419     /*
1420      * This have a problem: if the shell is tcsh (not sure about others)
1421      * and ~/.tcshrc have /bin/stty erase ^H somewhere on it, the shell
1422      * will block and the command will not be executed.
1423     if (!shell) {
1424         shell = getenv("SHELL");
1425         if (!shell)
1426             shell = "/bin/sh";
1427     }
1428      */
1429     shell = "/bin/sh";
1430
1431     pid = fork();
1432     if (pid==0) {
1433
1434         SetupEnvironment(scr);
1435
1436 #ifdef HAVE_SETPGID
1437         setpgid(0, 0);
1438 #endif
1439         execl(shell, shell, "-c", wstrappend("exec ", command), NULL);
1440         wsyserror("could not execute %s -c %s", shell, command);
1441         Exit(-1);
1442     } else if (pid < 0) {
1443         wsyserror("cannot fork a new process");
1444     }
1445 }