src/misc.c

   1 /*
   2  *  Window Maker window manager
   3  *
   4  *  Copyright (c) 1997-2003 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 along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20 #include "wconfig.h"
  21
  22 #include <X11/Xlib.h>
  23 #include <X11/Xutil.h>
  24 #include <X11/Xatom.h>
  25 #include <sys/stat.h>
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <strings.h>
  30 #include <unistd.h>
  31 #include <fcntl.h>
  32 #include <stdarg.h>
  33 #include <pwd.h>
  34 #include <math.h>
  35 #include <time.h>
  36 #include <errno.h>
  37
  38 #include <X11/XKBlib.h>
  39
  40 #include <WINGs/WUtil.h>
  41 #include <wraster.h>
  42
  43 #include "window.h"
  44 #include "misc.h"
  45 #include "WindowMaker.h"
  46 #include "GNUstep.h"
  47 #include "screen.h"
  48 #include "wcore.h"
  49 #include "window.h"
  50 #include "framewin.h"
  51 #include "dialog.h"
  52 #include "xutil.h"
  53 #include "xmodifier.h"
  54 #include "main.h"
  55 #include "event.h"
  56
  57
  58 #define ICON_SIZE wPreferences.icon_size
  59
  60 /**** Local prototypes *****/
  61 static void UnescapeWM_CLASS(const char *str, char **name, char **class);
  62
  63 /* XFetchName Wrapper */
  64 Bool wFetchName(Display *dpy, Window win, char **winname)
  65 {
  66         XTextProperty text_prop;
  67         char **list;
  68         int num;
  69
  70         if (XGetWMName(dpy, win, &text_prop)) {
  71                 if (text_prop.value && text_prop.nitems > 0) {
  72                         if (text_prop.encoding == XA_STRING) {
  73                                 *winname = wstrdup((char *)text_prop.value);
  74                                 XFree(text_prop.value);
  75                         } else {
  76                                 text_prop.nitems = strlen((char *)text_prop.value);
  77                                 if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >=
  78                                     Success && num > 0 && *list) {
  79                                         XFree(text_prop.value);
  80                                         *winname = wstrdup(*list);
  81                                         XFreeStringList(list);
  82                                 } else {
  83                                         *winname = wstrdup((char *)text_prop.value);
  84                                         XFree(text_prop.value);
  85                                 }
  86                         }
  87                 } else {
  88                         /* the title is set, but it was set to none */
  89                         *winname = wstrdup("");
  90                 }
  91                 return True;
  92         } else {
  93                 /* the hint is probably not set */
  94                 *winname = NULL;
  95
  96                 return False;
  97         }
  98 }
  99
 100 /* XGetIconName Wrapper */
 101 Bool wGetIconName(Display *dpy, Window win, char **iconname)
 102 {
 103         XTextProperty text_prop;
 104         char **list;
 105         int num;
 106
 107         if (XGetWMIconName(dpy, win, &text_prop) != 0 && text_prop.value && text_prop.nitems > 0) {
 108                 if (text_prop.encoding == XA_STRING)
 109                         *iconname = (char *)text_prop.value;
 110                 else {
 111                         text_prop.nitems = strlen((char *)text_prop.value);
 112                         if (XmbTextPropertyToTextList(dpy, &text_prop, &list, &num) >= Success && num > 0 && *list) {
 113                                 XFree(text_prop.value);
 114                                 *iconname = wstrdup(*list);
 115                                 XFreeStringList(list);
 116                         } else
 117                                 *iconname = (char *)text_prop.value;
 118                 }
 119                 return True;
 120         }
 121         *iconname = NULL;
 122         return False;
 123 }
 124
 125 static void eatExpose(void)
 126 {
 127         XEvent event, foo;
 128
 129         /* compress all expose events into a single one */
 130
 131         if (XCheckMaskEvent(dpy, ExposureMask, &event)) {
 132                 /* ignore other exposure events for this window */
 133                 while (XCheckWindowEvent(dpy, event.xexpose.window, ExposureMask, &foo)) ;
 134                 /* eat exposes for other windows */
 135                 eatExpose();
 136
 137                 event.xexpose.count = 0;
 138                 XPutBackEvent(dpy, &event);
 139         }
 140 }
 141
 142 void move_window(Window win, int from_x, int from_y, int to_x, int to_y)
 143 {
 144 #ifdef USE_ANIMATIONS
 145         if (wPreferences.no_animations)
 146                 XMoveWindow(dpy, win, to_x, to_y);
 147         else
 148                 slide_window(win, from_x, from_y, to_x, to_y);
 149 #else
 150         XMoveWindow(dpy, win, to_x, to_y);
 151
 152         /* Tell the compiler it is normal that those parameters are not used in this case */
 153         (void) from_x;
 154         (void) from_y;
 155 #endif
 156 }
 157
 158 /* wins is an array of Window, sorted from left to right, the first is
 159  * going to be moved from (from_x,from_y) to (to_x,to_y) and the
 160  * following windows are going to be offset by (ICON_SIZE*i,0) */
 161 void slide_windows(Window wins[], int n, int from_x, int from_y, int to_x, int to_y)
 162 {
 163         time_t time0 = time(NULL);
 164         float dx, dy, x = from_x, y = from_y, px, py;
 165         Bool is_dx_nul, is_dy_nul;
 166         int dx_is_bigger = 0, dx_int, dy_int;
 167         int slide_delay, slide_steps, slide_slowdown;
 168         int i;
 169
 170         /* animation parameters */
 171         static const struct {
 172                 int delay;
 173                 int steps;
 174                 int slowdown;
 175         } apars[5] = {
 176                 {ICON_SLIDE_DELAY_UF, ICON_SLIDE_STEPS_UF, ICON_SLIDE_SLOWDOWN_UF},
 177                 {ICON_SLIDE_DELAY_F,  ICON_SLIDE_STEPS_F,  ICON_SLIDE_SLOWDOWN_F},
 178                 {ICON_SLIDE_DELAY_M,  ICON_SLIDE_STEPS_M,  ICON_SLIDE_SLOWDOWN_M},
 179                 {ICON_SLIDE_DELAY_S,  ICON_SLIDE_STEPS_S,  ICON_SLIDE_SLOWDOWN_S},
 180                 {ICON_SLIDE_DELAY_US, ICON_SLIDE_STEPS_US, ICON_SLIDE_SLOWDOWN_US}
 181         };
 182
 183         slide_slowdown = apars[(int)wPreferences.icon_slide_speed].slowdown;
 184         slide_steps = apars[(int)wPreferences.icon_slide_speed].steps;
 185         slide_delay = apars[(int)wPreferences.icon_slide_speed].delay;
 186
 187         dx_int = to_x - from_x;
 188         dy_int = to_y - from_y;
 189         is_dx_nul = (dx_int == 0);
 190         is_dy_nul = (dy_int == 0);
 191         dx = (float) dx_int;
 192         dy = (float) dy_int;
 193
 194         if (abs(dx_int) > abs(dy_int)) {
 195                 dx_is_bigger = 1;
 196         }
 197
 198         if (dx_is_bigger) {
 199                 px = dx / slide_slowdown;
 200                 if (px < slide_steps && px > 0)
 201                         px = slide_steps;
 202                 else if (px > -slide_steps && px < 0)
 203                         px = -slide_steps;
 204                 py = (is_dx_nul ? 0.0F : px * dy / dx);
 205         } else {
 206                 py = dy / slide_slowdown;
 207                 if (py < slide_steps && py > 0)
 208                         py = slide_steps;
 209                 else if (py > -slide_steps && py < 0)
 210                         py = -slide_steps;
 211                 px = (is_dy_nul ? 0.0F : py * dx / dy);
 212         }
 213
 214         while (((int)x) != to_x ||
 215                          ((int)y) != to_y) {
 216                 x += px;
 217                 y += py;
 218                 if ((px < 0 && (int)x < to_x) || (px > 0 && (int)x > to_x))
 219                         x = (float)to_x;
 220                 if ((py < 0 && (int)y < to_y) || (py > 0 && (int)y > to_y))
 221                         y = (float)to_y;
 222
 223                 if (dx_is_bigger) {
 224                         px = px * (1.0F - 1 / (float)slide_slowdown);
 225                         if (px < slide_steps && px > 0)
 226                                 px = slide_steps;
 227                         else if (px > -slide_steps && px < 0)
 228                                 px = -slide_steps;
 229                         py = (is_dx_nul ? 0.0F : px * dy / dx);
 230                 } else {
 231                         py = py * (1.0F - 1 / (float)slide_slowdown);
 232                         if (py < slide_steps && py > 0)
 233                                 py = slide_steps;
 234                         else if (py > -slide_steps && py < 0)
 235                                 py = -slide_steps;
 236                         px = (is_dy_nul ? 0.0F : py * dx / dy);
 237                 }
 238
 239                 for (i = 0; i < n; i++) {
 240                         XMoveWindow(dpy, wins[i], (int)x + i * ICON_SIZE, (int)y);
 241                 }
 242                 XFlush(dpy);
 243                 if (slide_delay > 0) {
 244                         wusleep(slide_delay * 1000L);
 245                 } else {
 246                         wusleep(1000L);
 247                 }
 248                 if (time(NULL) - time0 > MAX_ANIMATION_TIME)
 249                         break;
 250         }
 251         for (i = 0; i < n; i++) {
 252                 XMoveWindow(dpy, wins[i], to_x + i * ICON_SIZE, to_y);
 253         }
 254
 255         XSync(dpy, 0);
 256         /* compress expose events */
 257         eatExpose();
 258 }
 259
 260 char *ShrinkString(WMFont *font, const char *string, int width)
 261 {
 262         int w, w1 = 0;
 263         int p;
 264         char *pos;
 265         char *text;
 266         int p1, p2, t;
 267
 268         p = strlen(string);
 269         w = WMWidthOfString(font, string, p);
 270         text = wmalloc(strlen(string) + 8);
 271         strcpy(text, string);
 272         if (w <= width)
 273                 return text;
 274
 275         pos = strchr(text, ' ');
 276         if (!pos)
 277                 pos = strchr(text, ':');
 278
 279         if (pos) {
 280                 *pos = 0;
 281                 p = strlen(text);
 282                 w1 = WMWidthOfString(font, text, p);
 283                 if (w1 > width) {
 284                         p = 0;
 285                         *pos = ' ';
 286                         *text = 0;
 287                 } else {
 288                         *pos = 0;
 289                         width -= w1;
 290                         p++;
 291                 }
 292                 string += p;
 293                 p = strlen(string);
 294         } else {
 295                 *text = 0;
 296         }
 297         strcat(text, "...");
 298         width -= WMWidthOfString(font, "...", 3);
 299
 300         p1 = 0;
 301         p2 = p;
 302         t = (p2 - p1) / 2;
 303         while (p2 > p1 && p1 != t) {
 304                 w = WMWidthOfString(font, &string[p - t], t);
 305                 if (w > width) {
 306                         p2 = t;
 307                         t = p1 + (p2 - p1) / 2;
 308                 } else if (w < width) {
 309                         p1 = t;
 310                         t = p1 + (p2 - p1) / 2;
 311                 } else
 312                         p2 = p1 = t;
 313         }
 314         strcat(text, &string[p - p1]);
 315
 316         return text;
 317 }
 318
 319 char *FindImage(const char *paths, const char *file)
 320 {
 321         char *tmp, *path = NULL;
 322
 323         tmp = strrchr(file, ':');
 324         if (tmp) {
 325                 *tmp = 0;
 326                 path = wfindfile(paths, file);
 327                 *tmp = ':';
 328         }
 329         if (!tmp || !path)
 330                 path = wfindfile(paths, file);
 331
 332         return path;
 333 }
 334
 335 static void timeoutHandler(void *data)
 336 {
 337         *(int *)data = 1;
 338 }
 339
 340 static char *getTextSelection(WScreen * screen, Atom selection)
 341 {
 342         int buffer = -1;
 343
 344         switch (selection) {
 345         case XA_CUT_BUFFER0:
 346                 buffer = 0;
 347                 break;
 348         case XA_CUT_BUFFER1:
 349                 buffer = 1;
 350                 break;
 351         case XA_CUT_BUFFER2:
 352                 buffer = 2;
 353                 break;
 354         case XA_CUT_BUFFER3:
 355                 buffer = 3;
 356                 break;
 357         case XA_CUT_BUFFER4:
 358                 buffer = 4;
 359                 break;
 360         case XA_CUT_BUFFER5:
 361                 buffer = 5;
 362                 break;
 363         case XA_CUT_BUFFER6:
 364                 buffer = 6;
 365                 break;
 366         case XA_CUT_BUFFER7:
 367                 buffer = 7;
 368                 break;
 369         }
 370         if (buffer >= 0) {
 371                 char *data;
 372                 int size;
 373
 374                 data = XFetchBuffer(dpy, &size, buffer);
 375
 376                 return data;
 377         } else {
 378                 char *data;
 379                 int bits;
 380                 Atom rtype;
 381                 unsigned long len, bytes;
 382                 WMHandlerID timer;
 383                 int timeout = 0;
 384                 XEvent ev;
 385                 static Atom clipboard = 0;
 386
 387                 if (!clipboard)
 388                         clipboard = XInternAtom(dpy, "CLIPBOARD", False);
 389
 390                 XDeleteProperty(dpy, screen->info_window, clipboard);
 391
 392                 XConvertSelection(dpy, selection, XA_STRING, clipboard, screen->info_window, CurrentTime);
 393
 394                 timer = WMAddTimerHandler(1000, timeoutHandler, &timeout);
 395
 396                 while (!XCheckTypedWindowEvent(dpy, screen->info_window, SelectionNotify, &ev) && !timeout) ;
 397
 398                 if (!timeout) {
 399                         WMDeleteTimerHandler(timer);
 400                 } else {
 401                         wwarning("selection retrieval timed out");
 402                         return NULL;
 403                 }
 404
 405                 /* nobody owns the selection or the current owner has
 406                  * nothing to do with what we need */
 407                 if (ev.xselection.property == None) {
 408                         return NULL;
 409                 }
 410
 411                 if (XGetWindowProperty(dpy, screen->info_window,
 412                                        clipboard, 0, 1024,
 413                                        False, XA_STRING, &rtype, &bits, &len,
 414                                        &bytes, (unsigned char **)&data) != Success) {
 415                         return NULL;
 416                 }
 417                 if (rtype != XA_STRING || bits != 8) {
 418                         wwarning("invalid data in text selection");
 419                         if (data)
 420                                 XFree(data);
 421                         return NULL;
 422                 }
 423                 return data;
 424         }
 425 }
 426
 427 static char *getselection(WScreen * scr)
 428 {
 429         char *tmp;
 430
 431         tmp = getTextSelection(scr, XA_PRIMARY);
 432         if (!tmp)
 433                 tmp = getTextSelection(scr, XA_CUT_BUFFER0);
 434         return tmp;
 435 }
 436
 437 static char*
 438 parseuserinputpart(const char *line, int *ptr, const char *endchars)
 439 {
 440         int depth = 0, begin;
 441         char *value = NULL;
 442         begin = ++*ptr;
 443
 444         while(line[*ptr] != '\0') {
 445                 if(line[*ptr] == '(') {
 446                         ++depth;
 447                 } else if(depth > 0 && line[*ptr] == ')') {
 448                         --depth;
 449                 } else if(depth == 0 && strchr(endchars, line[*ptr]) != NULL) {
 450                         value = wmalloc(*ptr - begin + 1);
 451                         strncpy(value, line + begin, *ptr - begin);
 452                         value[*ptr - begin] = '\0';
 453                         break;
 454                 }
 455                 ++*ptr;
 456         }
 457
 458         return value;
 459 }
 460
 461 static char*
 462 getuserinput(WScreen *scr, const char *line, int *ptr, Bool advanced)
 463 {
 464     char *ret = NULL, *title = NULL, *prompt = NULL, *name = NULL;
 465     int rv;
 466
 467     if(line[*ptr] == '(')
 468         title = parseuserinputpart(line, ptr, ",)");
 469     if(title != NULL && line[*ptr] == ',')
 470         prompt = parseuserinputpart(line, ptr, ",)");
 471     if(prompt != NULL && line[*ptr] == ',')
 472         name = parseuserinputpart(line, ptr, ")");
 473
 474     if(advanced)
 475         rv = wAdvancedInputDialog(scr,
 476                 title ? _(title):_("Program Arguments"),
 477                 prompt ? _(prompt):_("Enter command arguments:"),
 478                 name, &ret);
 479     else
 480         rv = wInputDialog(scr,
 481                 title ? _(title):_("Program Arguments"),
 482                 prompt ? _(prompt):_("Enter command arguments:"),
 483                 &ret);
 484
 485     if(title) wfree(title);
 486     if(prompt) wfree(prompt);
 487     if(name) wfree(name);
 488
 489     return rv ? ret : NULL;
 490 }
 491
 492 #define S_NORMAL 0
 493 #define S_ESCAPE 1
 494 #define S_OPTION 2
 495
 496 /*
 497  * state        input   new-state       output
 498  * NORMAL       %       OPTION          <nil>
 499  * NORMAL       \       ESCAPE          <nil>
 500  * NORMAL       etc.    NORMAL          <input>
 501  * ESCAPE       any     NORMAL          <input>
 502  * OPTION       s       NORMAL          <selection buffer>
 503  * OPTION       w       NORMAL          <selected window id>
 504  * OPTION       a       NORMAL          <input text>
 505  * OPTION       d       NORMAL          <OffiX DND selection object>
 506  * OPTION       W       NORMAL          <current workspace>
 507  * OPTION       etc.    NORMAL          %<input>
 508  */
 509 #define TMPBUFSIZE 64
 510 char *ExpandOptions(WScreen *scr, const char *cmdline)
 511 {
 512         int ptr, optr, state, len, olen;
 513         char *out, *nout;
 514         char *selection = NULL;
 515         char *user_input = NULL;
 516         char tmpbuf[TMPBUFSIZE];
 517         int slen;
 518
 519         len = strlen(cmdline);
 520         olen = len + 1;
 521         out = malloc(olen);
 522         if (!out) {
 523                 wwarning(_("out of memory during expansion of \"%s\""), cmdline);
 524                 return NULL;
 525         }
 526         *out = 0;
 527         ptr = 0;                /* input line pointer */
 528         optr = 0;               /* output line pointer */
 529         state = S_NORMAL;
 530         while (ptr < len) {
 531                 switch (state) {
 532                 case S_NORMAL:
 533                         switch (cmdline[ptr]) {
 534                         case '\\':
 535                                 state = S_ESCAPE;
 536                                 break;
 537                         case '%':
 538                                 state = S_OPTION;
 539                                 break;
 540                         default:
 541                                 state = S_NORMAL;
 542                                 out[optr++] = cmdline[ptr];
 543                                 break;
 544                         }
 545                         break;
 546                 case S_ESCAPE:
 547                         switch (cmdline[ptr]) {
 548                         case 'n':
 549                                 out[optr++] = 10;
 550                                 break;
 551
 552                         case 'r':
 553                                 out[optr++] = 13;
 554                                 break;
 555
 556                         case 't':
 557                                 out[optr++] = 9;
 558                                 break;
 559
 560                         default:
 561                                 out[optr++] = cmdline[ptr];
 562                         }
 563                         state = S_NORMAL;
 564                         break;
 565                 case S_OPTION:
 566                         state = S_NORMAL;
 567                         switch (cmdline[ptr]) {
 568                         case 'w':
 569                                 if (scr->focused_window && scr->focused_window->flags.focused) {
 570                                         snprintf(tmpbuf, sizeof(tmpbuf), "0x%x",
 571                                                  (unsigned int)scr->focused_window->client_win);
 572                                         slen = strlen(tmpbuf);
 573                                         olen += slen;
 574                                         nout = realloc(out, olen);
 575                                         if (!nout) {
 576                                                 wwarning(_("out of memory during expansion of '%s' for command \"%s\""), "%w", cmdline);
 577                                                 goto error;
 578                                         }
 579                                         out = nout;
 580                                         strcat(out, tmpbuf);
 581                                         optr += slen;
 582                                 } else {
 583                                         out[optr++] = ' ';
 584                                 }
 585                                 break;
 586
 587                         case 'W':
 588                                 snprintf(tmpbuf, sizeof(tmpbuf), "0x%x", (unsigned int)scr->current_workspace + 1);
 589                                 slen = strlen(tmpbuf);
 590                                 olen += slen;
 591                                 nout = realloc(out, olen);
 592                                 if (!nout) {
 593                                         wwarning(_("out of memory during expansion of '%s' for command \"%s\""), "%W", cmdline);
 594                                         goto error;
 595                                 }
 596                                 out = nout;
 597                                 strcat(out, tmpbuf);
 598                                 optr += slen;
 599                                 break;
 600
 601                         case 'a':
 602                         case 'A':
 603                                 ptr++;
 604                                 user_input = getuserinput(scr, cmdline, &ptr, cmdline[ptr-1] == 'A');
 605                                 if (user_input) {
 606                                         slen = strlen(user_input);
 607                                         olen += slen;
 608                                         nout = realloc(out, olen);
 609                                         if (!nout) {
 610                                                 wwarning(_("out of memory during expansion of '%s' for command \"%s\""), "%a", cmdline);
 611                                                 goto error;
 612                                         }
 613                                         out = nout;
 614                                         strcat(out, user_input);
 615                                         optr += slen;
 616                                 } else {
 617                                         /* Not an error, but user has Canceled the dialog box.
 618                                          * This will make the command to not be performed. */
 619                                         goto error;
 620                                 }
 621                                 break;
 622
 623 #ifdef USE_DOCK_XDND
 624                         case 'd':
 625                                 if (!scr->xdestring) {
 626                                         scr->flags.dnd_data_convertion_status = 1;
 627                                         goto error;
 628                                 }
 629                                 slen = strlen(scr->xdestring);
 630                                 olen += slen;
 631                                 nout = realloc(out, olen);
 632                                 if (!nout) {
 633                                         wwarning(_("out of memory during expansion of '%s' for command \"%s\""), "%d", cmdline);
 634                                         goto error;
 635                                 }
 636                                 out = nout;
 637                                 strcat(out, scr->xdestring);
 638                                 optr += slen;
 639                                 break;
 640 #endif  /* USE_DOCK_XDND */
 641
 642                         case 's':
 643                                 if (!selection) {
 644                                         selection = getselection(scr);
 645                                 }
 646                                 if (!selection) {
 647                                         wwarning(_("selection not available"));
 648                                         goto error;
 649                                 }
 650                                 slen = strlen(selection);
 651                                 olen += slen;
 652                                 nout = realloc(out, olen);
 653                                 if (!nout) {
 654                                         wwarning(_("out of memory during expansion of '%s' for command \"%s\""), "%s", cmdline);
 655                                         goto error;
 656                                 }
 657                                 out = nout;
 658                                 strcat(out, selection);
 659                                 optr += slen;
 660                                 break;
 661
 662                         default:
 663                                 out[optr++] = '%';
 664                                 out[optr++] = cmdline[ptr];
 665                         }
 666                         break;
 667                 }
 668                 out[optr] = 0;
 669                 ptr++;
 670         }
 671         if (selection)
 672                 XFree(selection);
 673         return out;
 674
 675  error:
 676         wfree(out);
 677         if (selection)
 678                 XFree(selection);
 679         return NULL;
 680 }
 681
 682 void ParseWindowName(WMPropList *value, char **winstance, char **wclass, const char *where)
 683 {
 684         char *name;
 685
 686         *winstance = *wclass = NULL;
 687
 688         if (!WMIsPLString(value)) {
 689                 wwarning(_("bad window name value in %s state info"), where);
 690                 return;
 691         }
 692
 693         name = WMGetFromPLString(value);
 694         if (!name || strlen(name) == 0) {
 695                 wwarning(_("bad window name value in %s state info"), where);
 696                 return;
 697         }
 698
 699         UnescapeWM_CLASS(name, winstance, wclass);
 700 }
 701
 702 #if 0
 703 static char *keysymToString(KeySym keysym, unsigned int state)
 704 {
 705         XKeyEvent kev;
 706         char *buf = wmalloc(20);
 707         int count;
 708
 709         kev.display = dpy;
 710         kev.type = KeyPress;
 711         kev.send_event = False;
 712         kev.window = DefaultRootWindow(dpy);
 713         kev.root = DefaultRootWindow(dpy);
 714         kev.same_screen = True;
 715         kev.subwindow = kev.root;
 716         kev.serial = 0x12344321;
 717         kev.time = CurrentTime;
 718         kev.state = state;
 719         kev.keycode = XKeysymToKeycode(dpy, keysym);
 720         count = XLookupString(&kev, buf, 19, NULL, NULL);
 721         buf[count] = 0;
 722
 723         return buf;
 724 }
 725 #endif
 726
 727 char *GetShortcutString(const char *shortcut)
 728 {
 729         char *buffer = NULL;
 730         char *k, *tmp, *text;
 731
 732         tmp = text = wstrdup(shortcut);
 733
 734         /* get modifiers */
 735         while ((k = strchr(text, '+')) != NULL) {
 736                 int mod;
 737                 const char *lbl;
 738
 739                 *k = 0;
 740                 mod = wXModifierFromKey(text);
 741                 if (mod < 0) {
 742                         return wstrdup("bug");
 743                 }
 744                 lbl = wXModifierToShortcutLabel(mod);
 745                 if (lbl)
 746                         buffer = wstrappend(buffer, lbl);
 747                 else
 748                         buffer = wstrappend(buffer, text);
 749                 text = k + 1;
 750         }
 751
 752         buffer = wstrappend(buffer, text);
 753         wfree(tmp);
 754
 755         return buffer;
 756 }
 757
 758 char *GetShortcutKey(WShortKey key)
 759 {
 760         const char *key_name;
 761         char buffer[256];
 762         char *wr;
 763
 764         void append_string(const char *text)
 765         {
 766                 const char *string = text;
 767
 768                 while (*string) {
 769                         if (wr >= buffer + sizeof(buffer) - 1)
 770                                 break;
 771                         *wr++ = *string++;
 772                 }
 773         }
 774
 775         void append_modifier(int modifier_index, const char *fallback_name)
 776         {
 777                 if (wPreferences.modifier_labels[modifier_index]) {
 778                         append_string(wPreferences.modifier_labels[modifier_index]);
 779                 } else {
 780                         append_string(fallback_name);
 781                 }
 782         }
 783
 784         key_name = XKeysymToString(XkbKeycodeToKeysym(dpy, key.keycode, 0, 0));
 785         if (!key_name)
 786                 return NULL;
 787
 788         wr = buffer;
 789         if (key.modifier & ControlMask) append_modifier(1, "Control+");
 790         if (key.modifier & ShiftMask)   append_modifier(0, "Shift+");
 791         if (key.modifier & Mod1Mask)    append_modifier(2, "Mod1+");
 792         if (key.modifier & Mod2Mask)    append_modifier(3, "Mod2+");
 793         if (key.modifier & Mod3Mask)    append_modifier(4, "Mod3+");
 794         if (key.modifier & Mod4Mask)    append_modifier(5, "Mod4+");
 795         if (key.modifier & Mod5Mask)    append_modifier(6, "Mod5+");
 796         append_string(key_name);
 797         *wr = '\0';
 798
 799         return GetShortcutString(buffer);
 800 }
 801
 802 char *EscapeWM_CLASS(const char *name, const char *class)
 803 {
 804         char *ret;
 805         char *ename = NULL, *eclass = NULL;
 806         int i, j, l;
 807
 808         if (!name && !class)
 809                 return NULL;
 810
 811         if (name) {
 812                 l = strlen(name);
 813                 ename = wmalloc(l * 2 + 1);
 814                 j = 0;
 815                 for (i = 0; i < l; i++) {
 816                         if (name[i] == '\\') {
 817                                 ename[j++] = '\\';
 818                         } else if (name[i] == '.') {
 819                                 ename[j++] = '\\';
 820                         }
 821                         ename[j++] = name[i];
 822                 }
 823                 ename[j] = 0;
 824         }
 825         if (class) {
 826                 l = strlen(class);
 827                 eclass = wmalloc(l * 2 + 1);
 828                 j = 0;
 829                 for (i = 0; i < l; i++) {
 830                         if (class[i] == '\\') {
 831                                 eclass[j++] = '\\';
 832                         } else if (class[i] == '.') {
 833                                 eclass[j++] = '\\';
 834                         }
 835                         eclass[j++] = class[i];
 836                 }
 837                 eclass[j] = 0;
 838         }
 839
 840         if (ename && eclass) {
 841                 int len = strlen(ename) + strlen(eclass) + 4;
 842                 ret = wmalloc(len);
 843                 snprintf(ret, len, "%s.%s", ename, eclass);
 844                 wfree(ename);
 845                 wfree(eclass);
 846         } else if (ename) {
 847                 ret = wstrdup(ename);
 848                 wfree(ename);
 849         } else {
 850                 ret = wstrdup(eclass);
 851                 wfree(eclass);
 852         }
 853
 854         return ret;
 855 }
 856
 857 static void UnescapeWM_CLASS(const char *str, char **name, char **class)
 858 {
 859         int i, j, k, dot;
 860         int length_of_name;
 861
 862         j = strlen(str);
 863
 864         /* separate string in 2 parts */
 865         length_of_name = 0;
 866         dot = -1;
 867         for (i = 0; i < j; i++, length_of_name++) {
 868                 if (str[i] == '\\') {
 869                         i++;
 870                         continue;
 871                 } else if (str[i] == '.') {
 872                         dot = i;
 873                         break;
 874                 }
 875         }
 876
 877         /* unescape the name */
 878         if (length_of_name > 0) {
 879                 *name = wmalloc(length_of_name + 1);
 880                 for (i = 0, k = 0; i < dot; i++) {
 881                         if (str[i] != '\\')
 882                                 (*name)[k++] = str[i];
 883                 }
 884                 (*name)[k] = '\0';
 885         } else {
 886                 *name = NULL;
 887         }
 888
 889         /* unescape the class */
 890         if (dot < j-1) {
 891                 *class = wmalloc(j - (dot + 1) + 1);
 892                 for (i = dot + 1, k = 0; i < j; i++) {
 893                         if (str[i] != '\\')
 894                                 (*class)[k++] = str[i];
 895                 }
 896                 (*class)[k] = 0;
 897         } else {
 898                 *class = NULL;
 899         }
 900 }
 901
 902 static void track_bg_helper_death(pid_t pid, unsigned int status, void *client_data)
 903 {
 904         WScreen *scr = (WScreen *) client_data;
 905
 906         /* Parameter not used, but tell the compiler that it is ok */
 907         (void) pid;
 908         (void) status;
 909
 910         close(scr->helper_fd);
 911         scr->helper_fd = 0;
 912         scr->helper_pid = 0;
 913         scr->flags.backimage_helper_launched = 0;
 914 }
 915
 916 Bool start_bg_helper(WScreen *scr)
 917 {
 918         pid_t pid;
 919         int filedes[2];
 920
 921         if (pipe(filedes) < 0) {
 922                 werror(_("%s failed, can't set workspace specific background image (%s)"),
 923                        "pipe()", strerror(errno));
 924                 return False;
 925         }
 926
 927         pid = fork();
 928         if (pid < 0) {
 929                 werror(_("%s failed, can't set workspace specific background image (%s)"),
 930                        "fork()", strerror(errno));
 931                 close(filedes[0]);
 932                 close(filedes[1]);
 933                 return False;
 934
 935         } else if (pid == 0) {
 936                 const char *dither;
 937
 938                 /* We don't need this side of the pipe in the child process */
 939                 close(filedes[1]);
 940
 941                 SetupEnvironment(scr);
 942
 943                 close(STDIN_FILENO);
 944                 if (dup2(filedes[0], STDIN_FILENO) < 0) {
 945                         werror(_("%s failed, can't set workspace specific background image (%s)"),
 946                                "dup2()", strerror(errno));
 947                         exit(1);
 948                 }
 949                 close(filedes[0]);
 950
 951                 dither = wPreferences.no_dithering ? "-m" : "-d";
 952                 if (wPreferences.smooth_workspace_back)
 953                         execlp("wmsetbg", "wmsetbg", "-helper", "-S", dither, NULL);
 954                 else
 955                         execlp("wmsetbg", "wmsetbg", "-helper", dither, NULL);
 956
 957                 werror(_("could not execute \"%s\": %s"), "wmsetbg", strerror(errno));
 958                 exit(1);
 959
 960         } else {
 961                 /* We don't need this side of the pipe in the parent process */
 962                 close(filedes[0]);
 963
 964                 if (fcntl(filedes[1], F_SETFD, FD_CLOEXEC) < 0)
 965                         wwarning(_("could not set close-on-exec flag for bg_helper's communication file handle (%s)"),
 966                                  strerror(errno));
 967
 968                 scr->helper_fd = filedes[1];
 969                 scr->helper_pid = pid;
 970                 scr->flags.backimage_helper_launched = 1;
 971
 972                 wAddDeathHandler(pid, track_bg_helper_death, scr);
 973
 974                 return True;
 975         }
 976 }
 977
 978 void SendHelperMessage(WScreen *scr, char type, int workspace, const char *msg)
 979 {
 980         char *buffer;
 981         int len;
 982         int i;
 983         char buf[16];
 984
 985         if (!scr->flags.backimage_helper_launched) {
 986                 return;
 987         }
 988
 989         len = (msg ? strlen(msg) : 0) + (workspace >= 0 ? 4 : 0) + 1;
 990         buffer = wmalloc(len + 5);
 991         snprintf(buf, sizeof(buf), "%4i", len);
 992         memcpy(buffer, buf, 4);
 993         buffer[4] = type;
 994         i = 5;
 995         if (workspace >= 0) {
 996                 snprintf(buf, sizeof(buf), "%4i", workspace);
 997                 memcpy(&buffer[i], buf, 4);
 998                 i += 4;
 999                 buffer[i] = 0;
1000         }
1001         if (msg)
1002                 strcpy(&buffer[i], msg);
1003
1004         if (write(scr->helper_fd, buffer, len + 4) < 0) {
1005                 werror(_("could not send message to background image helper"));
1006         }
1007         wfree(buffer);
1008 }
1009
1010 Bool UpdateDomainFile(WDDomain * domain)
1011 {
1012         struct stat stbuf;
1013         char path[PATH_MAX];
1014         WMPropList *shared_dict, *dict;
1015         Bool result, freeDict = False;
1016
1017         dict = domain->dictionary;
1018         if (WMIsPLDictionary(domain->dictionary)) {
1019                 /* retrieve global system dictionary */
1020                 snprintf(path, sizeof(path), "%s/WindowMaker/%s", SYSCONFDIR, domain->domain_name);
1021                 if (stat(path, &stbuf) >= 0) {
1022                         shared_dict = WMReadPropListFromFile(path);
1023                         if (shared_dict) {
1024                                 if (WMIsPLDictionary(shared_dict)) {
1025                                         freeDict = True;
1026                                         dict = WMDeepCopyPropList(domain->dictionary);
1027                                         WMSubtractPLDictionaries(dict, shared_dict, True);
1028                                 }
1029                                 WMReleasePropList(shared_dict);
1030                         }
1031                 }
1032         }
1033
1034         result = WMWritePropListToFile(dict, domain->path);
1035
1036         if (freeDict) {
1037                 WMReleasePropList(dict);
1038         }
1039
1040         return result;
1041 }
1042
1043 char *StrConcatDot(const char *a, const char *b)
1044 {
1045         int len;
1046         char *str;
1047
1048         if (!a)
1049                 a = "";
1050         if (!b)
1051                 b = "";
1052
1053         len = strlen(a) + strlen(b) + 4;
1054         str = wmalloc(len);
1055
1056         snprintf(str, len, "%s.%s", a, b);
1057
1058         return str;
1059 }
1060
1061 static char *getCommandForWindow(Window win, int elements)
1062 {
1063         char **argv, *command = NULL;
1064         int argc;
1065
1066         if (XGetCommand(dpy, win, &argv, &argc)) {
1067                 if (argc > 0 && argv != NULL) {
1068                         if (elements == 0)
1069                                 elements = argc;
1070                         command = wtokenjoin(argv, WMIN(argc, elements));
1071                         if (command[0] == 0) {
1072                                 wfree(command);
1073                                 command = NULL;
1074                         }
1075                 }
1076                 if (argv) {
1077                         XFreeStringList(argv);
1078                 }
1079         }
1080
1081         return command;
1082 }
1083
1084 /* Free result when done */
1085 char *GetCommandForWindow(Window win)
1086 {
1087         return getCommandForWindow(win, 0);
1088 }