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 <wraster.h>
  36
  37 #include "WindowMaker.h"
  38 #include "GNUstep.h"
  39 #include "screen.h"
  40 #include "wcore.h"
  41 #include "window.h"
  42 #include "framewin.h"
  43 #include "funcs.h"
  44 #include "defaults.h"
  45 #include "dialog.h"
  46 #include "xutil.h"
  47 #include "xmodifier.h"
  48
  49 #include "list.h"
  50
  51 /**** global variables *****/
  52
  53 extern char *DisplayName;
  54
  55 extern WPreferences wPreferences;
  56
  57 extern Time LastTimestamp;
  58
  59
  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
 195 WWindow*
 196 NextFocusWindow(WScreen *scr)
 197 {
 198     WWindow *tmp, *wwin, *closest, *min;
 199     Window d;
 200
 201     if (!(wwin = scr->focused_window))
 202         return NULL;
 203     tmp = wwin->prev;
 204     closest = NULL;
 205     min = wwin;
 206     d = 0xffffffff;
 207     while (tmp) {
 208         if (wWindowCanReceiveFocus(tmp)
 209             && (!WFLAGP(tmp, skip_window_list)|| tmp->flags.internal_window)) {
 210             if (min->client_win > tmp->client_win)
 211               min = tmp;
 212             if (tmp->client_win > wwin->client_win
 213                 && (!closest
 214                     || (tmp->client_win - wwin->client_win) < d)) {
 215                 closest = tmp;
 216                 d = tmp->client_win - wwin->client_win;
 217             }
 218         }
 219         tmp = tmp->prev;
 220     }
 221     if (!closest||closest==wwin)
 222       return min;
 223     return closest;
 224 }
 225
 226
 227 WWindow*
 228 PrevFocusWindow(WScreen *scr)
 229 {
 230     WWindow *tmp, *wwin, *closest, *max;
 231     Window d;
 232
 233     if (!(wwin = scr->focused_window))
 234         return NULL;
 235     tmp = wwin->prev;
 236     closest = NULL;
 237     max = wwin;
 238     d = 0xffffffff;
 239     while (tmp) {
 240         if (wWindowCanReceiveFocus(tmp) &&
 241             (!WFLAGP(tmp, skip_window_list) || tmp->flags.internal_window)) {
 242             if (max->client_win < tmp->client_win)
 243               max = tmp;
 244             if (tmp->client_win < wwin->client_win
 245                 && (!closest
 246                     || (wwin->client_win - tmp->client_win) < d)) {
 247                 closest = tmp;
 248                 d = wwin->client_win - tmp->client_win;
 249             }
 250         }
 251         tmp = tmp->prev;
 252     }
 253     if (!closest||closest==wwin)
 254       return max;
 255     return closest;
 256 }
 257
 258
 259
 260 #if 0
 261 /*
 262  * Is win2 below win1?
 263  */
 264 static Bool
 265 isBelow(WWindow *win1, WWindow *win2)
 266 {
 267     int i;
 268     WCoreWindow *tmp;
 269
 270     tmp = win1->frame->core->stacking->under;
 271     while (tmp) {
 272         if (tmp == win2->frame->core)
 273             return True;
 274         tmp = tmp->stacking->under;
 275     }
 276
 277     for (i=win1->frame->core->stacking->window_level-1; i>=0; i--) {
 278         tmp = win1->screen_ptr->stacking_list[i];
 279         while (tmp) {
 280             if (tmp == win2->frame->core)
 281                 return True;
 282             tmp = tmp->stacking->under;
 283         }
 284     }
 285     return True;
 286 }
 287 #endif
 288
 289
 290
 291 /*
 292  *  XFetchName Wrapper
 293  *
 294  */
 295 Bool wFetchName(dpy, win, winname)
 296 Display *dpy;
 297 Window win;
 298 char **winname;
 299 {
 300     XTextProperty text_prop;
 301     char **list;
 302     int num;
 303
 304     if (XGetWMName(dpy, win, &text_prop)) {
 305         if (text_prop.value && text_prop.nitems > 0) {
 306             if (text_prop.encoding == XA_STRING) {
 307                 *winname = wstrdup((char *)text_prop.value);
 308                 XFree(text_prop.value);
 309             } else {
 310                 text_prop.nitems = strlen((char *)text_prop.value);
 311                 if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
 312                     Success && num > 0 && *list) {
 313                     XFree(text_prop.value);
 314                     *winname = wstrdup(*list);
 315                     XFreeStringList(list);
 316                 } else {
 317                     *winname = wstrdup((char *)text_prop.value);
 318                     XFree(text_prop.value);
 319                 }
 320             }
 321         } else {
 322             /* the title is set, but it was set to none */
 323             *winname = wstrdup("");
 324         }
 325         return True;
 326     } else {
 327         /* the hint is probably not set */
 328         *winname = NULL;
 329
 330         return False;
 331     }
 332 }
 333
 334 /*
 335  *  XGetIconName Wrapper
 336  *
 337  */
 338
 339 Bool wGetIconName(dpy, win, iconname)
 340 Display *dpy;
 341 Window win;
 342 char **iconname;
 343 {
 344     XTextProperty text_prop;
 345     char **list;
 346     int num;
 347
 348     if (XGetWMIconName(dpy, win, &text_prop) != 0 && text_prop.value
 349         && text_prop.nitems > 0) {
 350         if (text_prop.encoding == XA_STRING)
 351             *iconname = (char *)text_prop.value;
 352         else {
 353             text_prop.nitems = strlen((char *)text_prop.value);
 354             if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
 355                 Success && num > 0 && *list) {
 356                 XFree(text_prop.value);
 357                 *iconname = wstrdup(*list);
 358                 XFreeStringList(list);
 359             } else
 360                 *iconname = (char *)text_prop.value;
 361         }
 362         return True;
 363     }
 364     *iconname = NULL;
 365     return False;
 366 }
 367
 368
 369 #if 0
 370 #ifdef I18N_MB
 371 void
 372 wTextWidth(XFontSet font, char *text, int length)
 373 {
 374     XRectangle rect;
 375     XRectangle AIXsucks;
 376
 377     XmbTextExtents(font, text, length, &AIXsucks, &rec);
 378
 379     return rect.width;
 380 }
 381 #else
 382 void
 383 wTextWidth(XFontStruct *font, char *text, int length)
 384 {
 385     return XTextWidth(font, text, length);
 386 }
 387 #endif
 388 #endif
 389
 390 static void
 391 eatExpose()
 392 {
 393     XEvent event, foo;
 394
 395     /* compress all expose events into a single one */
 396
 397     if (XCheckMaskEvent(dpy, ExposureMask, &event)) {
 398         /* ignore other exposure events for this window */
 399         while (XCheckWindowEvent(dpy, event.xexpose.window, ExposureMask,
 400                                &foo));
 401         /* eat exposes for other windows */
 402         eatExpose();
 403
 404         event.xexpose.count = 0;
 405         XPutBackEvent(dpy, &event);
 406     }
 407 }
 408
 409
 410 void
 411 SlideWindow(Window win, int from_x, int from_y, int to_x, int to_y)
 412 {
 413     time_t time0 = time(NULL);
 414     float dx, dy, x=from_x, y=from_y, sx, sy, px, py;
 415     int dx_is_bigger=0;
 416
 417     /* animation parameters */
 418     static struct {
 419         int delay;
 420         int steps;
 421         int slowdown;
 422     } apars[5] = {
 423         {ICON_SLIDE_DELAY_UF, ICON_SLIDE_STEPS_UF, ICON_SLIDE_SLOWDOWN_UF},
 424         {ICON_SLIDE_DELAY_F, ICON_SLIDE_STEPS_F, ICON_SLIDE_SLOWDOWN_F},
 425         {ICON_SLIDE_DELAY_M, ICON_SLIDE_STEPS_M, ICON_SLIDE_SLOWDOWN_M},
 426         {ICON_SLIDE_DELAY_S, ICON_SLIDE_STEPS_S, ICON_SLIDE_SLOWDOWN_S},
 427         {ICON_SLIDE_DELAY_U, ICON_SLIDE_STEPS_U, ICON_SLIDE_SLOWDOWN_U}};
 428
 429
 430
 431     dx = (float)(to_x-from_x);
 432     dy = (float)(to_y-from_y);
 433     sx = (dx == 0 ? 0 : fabs(dx)/dx);
 434     sy = (dy == 0 ? 0 : fabs(dy)/dy);
 435
 436     if (fabs(dx) > fabs(dy)) {
 437         dx_is_bigger = 1;
 438     }
 439
 440     if (dx_is_bigger) {
 441         px = dx / apars[(int)wPreferences.icon_slide_speed].slowdown;
 442         if (px < apars[(int)wPreferences.icon_slide_speed].steps && px > 0)
 443             px = apars[(int)wPreferences.icon_slide_speed].steps;
 444         else if (px > -apars[(int)wPreferences.icon_slide_speed].steps && px < 0)
 445             px = -apars[(int)wPreferences.icon_slide_speed].steps;
 446         py = (sx == 0 ? 0 : px*dy/dx);
 447     } else {
 448         py = dy / apars[(int)wPreferences.icon_slide_speed].slowdown;
 449         if (py < apars[(int)wPreferences.icon_slide_speed].steps && py > 0)
 450             py = apars[(int)wPreferences.icon_slide_speed].steps;
 451         else if (py > -apars[(int)wPreferences.icon_slide_speed].steps && py < 0)
 452             py = -apars[(int)wPreferences.icon_slide_speed].steps;
 453         px = (sy == 0 ? 0 : py*dx/dy);
 454     }
 455
 456     while (x != to_x || y != to_y) {
 457         x += px;
 458         y += py;
 459         if ((px<0 && (int)x < to_x) || (px>0 && (int)x > to_x))
 460             x = (float)to_x;
 461         if ((py<0 && (int)y < to_y) || (py>0 && (int)y > to_y))
 462             y = (float)to_y;
 463
 464         if (dx_is_bigger) {
 465             px = px * (1.0 - 1/(float)apars[(int)wPreferences.icon_slide_speed].slowdown);
 466             if (px < apars[(int)wPreferences.icon_slide_speed].steps && px > 0)
 467                 px = apars[(int)wPreferences.icon_slide_speed].steps;
 468             else if (px > -apars[(int)wPreferences.icon_slide_speed].steps && px < 0)
 469                 px = -apars[(int)wPreferences.icon_slide_speed].steps;
 470             py = (sx == 0 ? 0 : px*dy/dx);
 471         } else {
 472             py = py * (1.0 - 1/(float)apars[(int)wPreferences.icon_slide_speed].slowdown);
 473             if (py < apars[(int)wPreferences.icon_slide_speed].steps && py > 0)
 474                 py = apars[(int)wPreferences.icon_slide_speed].steps;
 475             else if (py > -apars[(int)wPreferences.icon_slide_speed].steps && py < 0)
 476                 py = -apars[(int)wPreferences.icon_slide_speed].steps;
 477             px = (sy == 0 ? 0 : py*dx/dy);
 478         }
 479
 480         XMoveWindow(dpy, win, (int)x, (int)y);
 481         XFlush(dpy);
 482         if (apars[(int)wPreferences.icon_slide_speed].delay > 0) {
 483             wusleep(apars[(int)wPreferences.icon_slide_speed].delay*1000L);
 484         }
 485         if (time(NULL) - time0 > MAX_ANIMATION_TIME)
 486             break;
 487     }
 488     XMoveWindow(dpy, win, to_x, to_y);
 489
 490     XSync(dpy, 0);
 491     /* compress expose events */
 492     eatExpose();
 493 }
 494
 495
 496 char*
 497 ShrinkString(WFont *font, char *string, int width)
 498 {
 499 #ifndef I18N_MB
 500     int w, w1=0;
 501     int p;
 502     char *pos;
 503     char *text;
 504     int p1, p2, t;
 505 #endif
 506
 507 #ifdef I18N_MB
 508     return wstrdup(string);
 509 #else
 510     p = strlen(string);
 511     w = wTextWidth(font->font, string, p);
 512     text = wmalloc(strlen(string)+8);
 513     strcpy(text, string);
 514     if (w<=width)
 515       return text;
 516
 517     pos = strchr(text, ' ');
 518     if (!pos)
 519       pos = strchr(text, ':');
 520
 521     if (pos) {
 522         *pos = 0;
 523         p = strlen(text);
 524         w1=wTextWidth(font->font, text, p);
 525         if (w1>width) {
 526             w1 = 0;
 527             p = 0;
 528             *pos = ' ';
 529             *text = 0;
 530         } else {
 531             *pos = 0;
 532             width -= w1;
 533             p++;
 534         }
 535         string += p;
 536         p=strlen(string);
 537     } else {
 538         *text=0;
 539     }
 540     strcat(text, "...");
 541     width -= wTextWidth(font->font, "...", 3);
 542
 543     pos = string;
 544     p1=0;
 545     p2=p;
 546     t = (p2-p1)/2;
 547     while (p2>p1 && p1!=t) {
 548         w = wTextWidth(font->font, &string[p-t], t);
 549         if (w>width) {
 550             p2 = t;
 551             t = p1+(p2-p1)/2;
 552         } else if (w<width) {
 553             p1 = t;
 554             t = p1+(p2-p1)/2;
 555         } else
 556           p2=p1=t;
 557     }
 558     strcat(text, &string[p-p1]);
 559     return text;
 560 #endif /* I18N_MB */
 561 }
 562
 563
 564 char*
 565 FindImage(char *paths, char *file)
 566 {
 567     char *tmp, *path;
 568
 569     tmp = strrchr(file, ':');
 570     if (tmp) {
 571         *tmp = 0;
 572         path = wfindfile(paths, file);
 573         *tmp = ':';
 574     }
 575     if (!tmp || !path) {
 576         path = wfindfile(paths, file);
 577     }
 578
 579     return path;
 580 }
 581
 582
 583 char*
 584 FlattenStringList(char **list, int count)
 585 {
 586     int i, j;
 587     char *flat_string, *wspace;
 588
 589     j = 0;
 590     for (i=0; i<count; i++) {
 591         if (list[i]!=NULL && list[i][0]!=0) {
 592             j += strlen(list[i]);
 593             if (strpbrk(list[i], " \t"))
 594                 j += 2;
 595         }
 596     }
 597
 598     flat_string = malloc(j+count+1);
 599     if (!flat_string) {
 600         return NULL;
 601     }
 602
 603     *flat_string = 0;
 604     for (i=0; i<count; i++) {
 605         if (list[i]!=NULL && list[i][0]!=0) {
 606             if (i>0)
 607                 strcat(flat_string, " ");
 608             wspace = strpbrk(list[i], " \t");
 609             if (wspace)
 610                 strcat(flat_string, "\"");
 611             strcat(flat_string, list[i]);
 612             if (wspace)
 613                 strcat(flat_string, "\"");
 614         }
 615     }
 616
 617     return flat_string;
 618 }
 619
 620
 621
 622 /*
 623  *----------------------------------------------------------------------
 624  * ParseCommand --
 625  *      Divides a command line into a argv/argc pair.
 626  *----------------------------------------------------------------------
 627  */
 628 #define PRC_ALPHA       0
 629 #define PRC_BLANK       1
 630 #define PRC_ESCAPE      2
 631 #define PRC_DQUOTE      3
 632 #define PRC_EOS         4
 633 #define PRC_SQUOTE      5
 634
 635 typedef struct {
 636     short nstate;
 637     short output;
 638 } DFA;
 639
 640
 641 static DFA mtable[9][6] = {
 642     {{3,1},{0,0},{4,0},{1,0},{8,0},{6,0}},
 643     {{1,1},{1,1},{2,0},{3,0},{5,0},{1,1}},
 644     {{1,1},{1,1},{1,1},{1,1},{5,0},{1,1}},
 645     {{3,1},{5,0},{4,0},{1,0},{5,0},{6,0}},
 646     {{3,1},{3,1},{3,1},{3,1},{5,0},{3,1}},
 647     {{-1,-1},{0,0},{0,0},{0,0},{0,0},{0,0}}, /* final state */
 648     {{6,1},{6,1},{7,0},{6,1},{5,0},{3,0}},
 649     {{6,1},{6,1},{6,1},{6,1},{5,0},{6,1}},
 650     {{-1,-1},{0,0},{0,0},{0,0},{0,0},{0,0}}, /* final state */
 651 };
 652
 653 char*
 654 next_token(char *word, char **next)
 655 {
 656     char *ptr;
 657     char *ret, *t;
 658     int state, ctype;
 659
 660     t = ret = wmalloc(strlen(word)+1);
 661     ptr = word;
 662
 663     state = 0;
 664     *t = 0;
 665     while (1) {
 666         if (*ptr==0)
 667             ctype = PRC_EOS;
 668         else if (*ptr=='\\')
 669             ctype = PRC_ESCAPE;
 670         else if (*ptr=='"')
 671             ctype = PRC_DQUOTE;
 672         else if (*ptr=='\'')
 673             ctype = PRC_SQUOTE;
 674         else if (*ptr==' ' || *ptr=='\t')
 675             ctype = PRC_BLANK;
 676         else
 677             ctype = PRC_ALPHA;
 678
 679         if (mtable[state][ctype].output) {
 680             *t = *ptr; t++;
 681             *t = 0;
 682         }
 683         state = mtable[state][ctype].nstate;
 684         ptr++;
 685         if (mtable[state][0].output<0) {
 686             break;
 687         }
 688     }
 689
 690     if (*ret==0)
 691         t = NULL;
 692     else
 693         t = wstrdup(ret);
 694
 695     free(ret);
 696
 697     if (ctype==PRC_EOS)
 698         *next = NULL;
 699     else
 700         *next = ptr;
 701
 702     return t;
 703 }
 704
 705
 706 void
 707 ParseCommand(char *command, char ***argv, int *argc)
 708 {
 709     LinkedList *list = NULL;
 710     char *token, *line;
 711     int count, i;
 712
 713     line = command;
 714     do {
 715         token = next_token(line, &line);
 716         if (token) {
 717             list = list_cons(token, list);
 718         }
 719     } while (token!=NULL && line!=NULL);
 720
 721     count = list_length(list);
 722     *argv = wmalloc(sizeof(char*)*count);
 723     i = count;
 724     while (list!=NULL) {
 725         (*argv)[--i] = list->head;
 726         list_remove_head(&list);
 727     }
 728     *argc = count;
 729 }
 730
 731 #if 0
 732 static void
 733 timeup(void *foo)
 734 {
 735     *(int*)foo=1;
 736 }
 737 #endif
 738 static char*
 739 getselection(WScreen *scr)
 740 {
 741     char *tmp;
 742     extern char *W_GetTextSelection(); /* in WINGs */
 743
 744     tmp = W_GetTextSelection(scr->wmscreen, XA_PRIMARY);
 745     if (!tmp)
 746         tmp = W_GetTextSelection(scr->wmscreen, XA_CUT_BUFFER0);
 747     return tmp;
 748
 749 #if 0
 750     XEvent event;
 751     int timeover=0;
 752     WMHandlerID *id;
 753
 754 #ifdef DEBUG
 755     puts("getting selection");
 756 #endif
 757     RequestSelection(dpy, scr->no_focus_win, LastTimestamp);
 758     /* timeout on 1 sec. */
 759     id = WMAddTimerHandler(1000, timeup, &timeover);
 760     while (!timeover) {
 761         WMNextEvent(dpy, &event);
 762         if (event.type == SelectionNotify
 763             && event.xany.window==scr->no_focus_win) {
 764             WMDeleteTimerHandler(id);
 765 #ifdef DEBUG
 766             puts("selection ok");
 767 #endif
 768             return GetSelection(dpy, scr->no_focus_win);
 769         } else {
 770             WMHandleEvent(&event);
 771         }
 772     }
 773     wwarning(_("selection timed-out"));
 774     return NULL;
 775 #endif
 776 }
 777
 778
 779 static char*
 780 getuserinput(WScreen *scr, char *line, int *ptr)
 781 {
 782     char *ret;
 783     char *title;
 784     char *prompt;
 785     int j, state;
 786     int begin;
 787     char tbuffer[256], pbuffer[256];
 788
 789     title = _("Program Arguments");
 790     prompt = _("Enter command arguments:");
 791     ret = NULL;
 792
 793 #define _STARTING 0
 794 #define _TITLE 1
 795 #define _PROMPT 2
 796 #define _DONE 3
 797
 798     state = _STARTING;
 799     j = 0;
 800     for (; line[*ptr]!=0 && state!=_DONE; (*ptr)++) {
 801         switch (state) {
 802          case _STARTING:
 803             if (line[*ptr]=='(') {
 804                 state = _TITLE;
 805                 begin = *ptr+1;
 806             } else {
 807                 state = _DONE;
 808             }
 809             break;
 810
 811          case _TITLE:
 812             if (j <= 0 && line[*ptr]==',') {
 813
 814                 j = 0;
 815                 if (*ptr > begin) {
 816                     strncpy(tbuffer, &line[begin], WMIN(*ptr-begin, 255));
 817                     tbuffer[WMIN(*ptr-begin, 255)] = 0;
 818                     title = (char*)tbuffer;
 819                 }
 820                 begin = *ptr+1;
 821                 state = _PROMPT;
 822
 823             } else if (j <= 0 && line[*ptr]==')') {
 824
 825                 if (*ptr > begin) {
 826                     strncpy(tbuffer, &line[begin], WMIN(*ptr-begin, 255));
 827                     tbuffer[WMIN(*ptr-begin, 255)] = 0;
 828                     title = (char*)tbuffer;
 829                 }
 830                 state = _DONE;
 831
 832             } else if (line[*ptr]=='(') {
 833                 j++;
 834             } else if (line[*ptr]==')') {
 835                 j--;
 836             }
 837
 838             break;
 839
 840          case _PROMPT:
 841             if (line[*ptr]==')' && j==0) {
 842
 843                 if (*ptr-begin > 1) {
 844                     strncpy(pbuffer, &line[begin], WMIN(*ptr-begin, 255));
 845                     pbuffer[WMIN(*ptr-begin, 255)] = 0;
 846                     prompt = (char*)pbuffer;
 847                 }
 848                 state = _DONE;
 849             } else if (line[*ptr]=='(')
 850                     j++;
 851             else if (line[*ptr]==')')
 852                 j--;
 853             break;
 854         }
 855     }
 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);
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             esc = False;
1347         }
1348     }
1349     (*name)[k] = 0;
1350
1351     esc = False;
1352     k = 0;
1353     for (i = dot+1; i<j; i++) {
1354         if (!esc) {
1355             if (str[i]=='\\') {
1356                 esc = True;
1357             } else {
1358                 (*class)[k++] = str[i];
1359             }
1360         } else {
1361             esc = False;
1362         }
1363     }
1364     (*class)[k] = 0;
1365
1366     if (!*name) {
1367         free(*name);
1368         *name = NULL;
1369     }
1370     if (!*class) {
1371         free(*class);
1372         *class = NULL;
1373     }
1374 }
1375
1376
1377
1378 void
1379 SendHelperMessage(WScreen *scr, char type, int workspace, char *msg)
1380 {
1381     unsigned char *buffer;
1382     int len;
1383     int i;
1384     char buf[16];
1385
1386     if (!scr->flags.backimage_helper_launched) {
1387         return;
1388     }
1389
1390     len = (msg ? strlen(msg) : 0) + (workspace >=0 ? 4 : 0) + 1 ;
1391     buffer = wmalloc(len+5);
1392     sprintf(buf, "%4i", len);
1393     memcpy(buffer, buf, 4);
1394     buffer[4] = type;
1395     i = 5;
1396     if (workspace >= 0) {
1397         sprintf(buf, "%4i", workspace);
1398         memcpy(&buffer[i], buf, 4);
1399         i += 4;
1400         buffer[i] = 0;
1401     }
1402     if (msg)
1403         strcpy(&buffer[i], msg);
1404
1405     if (write(scr->helper_fd, buffer, len+4) < 0) {
1406         wsyserror(_("could not send message to background image helper"));
1407     }
1408     free(buffer);
1409 }
1410
1411
1412 void
1413 ExecuteShellCommand(WScreen *scr, char *command)
1414 {
1415     static char *shell = NULL;
1416     pid_t pid;
1417
1418     /*
1419      * This have a problem: if the shell is tcsh (not sure about others)
1420      * and ~/.tcshrc have /bin/stty erase ^H somewhere on it, the shell
1421      * will block and the command will not be executed.
1422     if (!shell) {
1423         shell = getenv("SHELL");
1424         if (!shell)
1425             shell = "/bin/sh";
1426     }
1427      */
1428     shell = "/bin/sh";
1429
1430     pid = fork();
1431     if (pid==0) {
1432
1433         SetupEnvironment(scr);
1434
1435 #ifdef HAVE_SETPGID
1436         setpgid(0, 0);
1437 #endif
1438         execl(shell, shell, "-c", command, NULL);
1439         wsyserror("could not execute %s -c %s", shell, command);
1440         Exit(-1);
1441     } else if (pid < 0) {
1442         wsyserror("cannot fork a new process");
1443     }
1444 }