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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.108 by sf-exg, Fri Oct 22 16:49:26 2010 UTC vs.
Revision 1.141 by sf-exg, Tue Oct 1 13:30:04 2013 UTC

1/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
2 * File: rxvttoolkit.C 2 * File: rxvttoolkit.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * 4 *
5 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
6 * Copyright (c) 2003-2007 Marc Lehmann <pcg@goof.com> 6 * Copyright (c) 2003-2011 Marc Lehmann <schmorp@schmorp.de>
7 * Copyright (c) 2011 Emanuele Giaquinta <e.giaquinta@glauco.it>
7 * 8 *
8 * This program is free software; you can redistribute it and/or modify 9 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 10 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 11 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version. 12 * (at your option) any later version.
33 34
34#if XFT 35#if XFT
35# include <X11/extensions/Xrender.h> 36# include <X11/extensions/Xrender.h>
36#endif 37#endif
37 38
38const char *const xa_names[] = 39static const char *const xa_names[] =
39{ 40{
40 "TEXT", 41 "TEXT",
41 "COMPOUND_TEXT", 42 "COMPOUND_TEXT",
42 "UTF8_STRING", 43 "UTF8_STRING",
43 "MULTIPLE", 44 "MULTIPLE",
65#endif 66#endif
66#if USE_XIM 67#if USE_XIM
67 "WM_LOCALE_NAME", 68 "WM_LOCALE_NAME",
68 "XIM_SERVERS", 69 "XIM_SERVERS",
69#endif 70#endif
70#ifdef ENABLE_TRANSPARENCY 71#if HAVE_IMG || ENABLE_PERL
71 "_XROOTPMAP_ID", 72 "_XROOTPMAP_ID",
72 "ESETROOT_PMAP_ID", 73 "ESETROOT_PMAP_ID",
73#endif 74#endif
74#if ENABLE_XEMBED 75#if ENABLE_XEMBED
75 "_XEMBED", 76 "_XEMBED",
152 put (*this->begin ()); 153 put (*this->begin ());
153} 154}
154 155
155///////////////////////////////////////////////////////////////////////////// 156/////////////////////////////////////////////////////////////////////////////
156 157
157#ifdef USE_XIM 158#if USE_XIM
158 159
159static void 160static void
160#if XIMCB_PROTO_BROKEN 161#if XIMCB_PROTO_BROKEN
161im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 162im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
162#else 163#else
227{ 228{
228} 229}
229 230
230rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h) 231rxvt_drawable &rxvt_screen::scratch_drawable (int w, int h)
231{ 232{
232 // it's actually faster to re-allocate every time. don't ask me
233 // why, but its likely no big deal there are no roundtrips
234 // (I think/hope).
235 if (!scratch_area || w > scratch_w || h > scratch_h || 1/*D*/) 233 if (!scratch_area || w > scratch_w || h > scratch_h)
236 { 234 {
237 if (scratch_area) 235 if (scratch_area)
238 { 236 {
239 XFreePixmap (dpy, scratch_area->drawable); 237 XFreePixmap (dpy, scratch_area->drawable);
240 delete scratch_area; 238 delete scratch_area;
262 depth = DefaultDepthOfScreen (screen); 260 depth = DefaultDepthOfScreen (screen);
263 visual = DefaultVisualOfScreen (screen); 261 visual = DefaultVisualOfScreen (screen);
264 cmap = DefaultColormapOfScreen (screen); 262 cmap = DefaultColormapOfScreen (screen);
265} 263}
266 264
265#if ENABLE_FRILLS
266
267void 267void
268rxvt_screen::select_visual (int bitdepth) 268rxvt_screen::select_visual (int id)
269{ 269{
270#if XFT
271 XVisualInfo vinfo; 270 XVisualInfo vinfo;
271 vinfo.visualid = id;
272 int n;
273
274 if (XVisualInfo *vi = XGetVisualInfo (dpy, VisualIDMask, &vinfo, &n))
275 {
276 depth = vi->depth;
277 visual = vi->visual;
278
279 XFree (vi);
280
281 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
282 }
283 else
284 rxvt_warn ("cannot requested visual id 0x%02x, using default visual.\n", id);
285}
286
287void
288rxvt_screen::select_depth (int bitdepth)
289{
290 XVisualInfo vinfo;
272 291
273 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo)) 292 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
274 {
275 depth = bitdepth;
276 visual = vinfo.visual; 293 select_visual (vinfo.visualid);
277 cmap = XCreateColormap (dpy, display->root, visual, AllocNone); 294 else
278 } 295 rxvt_warn ("no visual found for requested depth %d, using default visual.\n", bitdepth);
279#endif
280} 296}
297
298#endif
281 299
282void 300void
283rxvt_screen::clear () 301rxvt_screen::clear ()
284{ 302{
285#if XFT 303#if XFT
314 /* 332 /*
315 * get resources using the X library function 333 * get resources using the X library function
316 */ 334 */
317 char *displayResource, *xe; 335 char *displayResource, *xe;
318 XrmDatabase rdb1, database = 0; 336 XrmDatabase rdb1, database = 0;
337
338#if !XLIB_ILLEGAL_ACCESS
339 /* work around a bug in XrmSetDatabase where it frees the db, see ref_next */
340 database = XrmGetStringDatabase ("");
341#endif
319 342
320 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 343 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
321 // as opposed to "standard practise", we always read in ~/.Xdefaults 344 // as opposed to "standard practise", we always read in ~/.Xdefaults
322 345
323 // 6. System wide per application default file. 346 // 6. System wide per application default file.
362 XA_STRING, &actual_type, &actual_format, 385 XA_STRING, &actual_type, &actual_format,
363 &nitems, &nremaining, 386 &nitems, &nremaining,
364 (unsigned char **)&val) == Success 387 (unsigned char **)&val) == Success
365 && actual_type == XA_STRING 388 && actual_type == XA_STRING
366 && actual_format == 8) 389 && actual_format == 8)
367 displayResource = val; 390 displayResource = val;
368 else 391 else
369 { 392 {
370 displayResource = 0; 393 displayResource = 0;
371 394
372 if (val) 395 if (val)
373 XFree(val); 396 XFree (val);
374 } 397 }
375 398
376#if XLIB_ILLEGAL_ACCESS 399#if XLIB_ILLEGAL_ACCESS
377 dpy->xdefaults = displayResource; 400 dpy->xdefaults = displayResource;
378#endif 401#endif
379 } 402 }
427bool rxvt_display::ref_init () 450bool rxvt_display::ref_init ()
428{ 451{
429#ifdef LOCAL_X_IS_UNIX 452#ifdef LOCAL_X_IS_UNIX
430 if (id[0] == ':') 453 if (id[0] == ':')
431 { 454 {
432 if (!(val = rxvt_temp_buf<char> (5 + strlen (id) + 1))) 455 char *val = rxvt_temp_buf<char> (5 + strlen (id) + 1);
433 return false; 456
434 strcpy (val, "unix/"); 457 strcpy (val, "unix/");
435 strcat (val, id); 458 strcat (val, id);
459
436 dpy = XOpenDisplay (val); 460 dpy = XOpenDisplay (val);
437 } 461 }
438 else 462 else
439#endif 463#endif
440 dpy = 0; 464 dpy = 0;
446 return false; 470 return false;
447 471
448 screen = DefaultScreen (dpy); 472 screen = DefaultScreen (dpy);
449 root = DefaultRootWindow (dpy); 473 root = DefaultRootWindow (dpy);
450 474
451 assert (sizeof (xa_names) / sizeof (char *) == NUM_XA); 475 assert (ecb_array_length (xa_names) == NUM_XA);
452 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa); 476 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
453 477
454 XrmSetDatabase (dpy, get_resources (false)); 478 XrmSetDatabase (dpy, get_resources (false));
455 479
456#ifdef POINTER_BLANK 480#ifdef POINTER_BLANK
462 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ', 486 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
463 &blackcolour, &blackcolour); 487 &blackcolour, &blackcolour);
464 XUnloadFont (dpy, f); 488 XUnloadFont (dpy, f);
465#endif 489#endif
466 490
491 flags = 0;
492#if XRENDER
493 int major, minor;
494 if (XRenderQueryVersion (dpy, &major, &minor))
495 if (major > 0 || (major == 0 && minor >= 10))
496 {
497 flags |= DISPLAY_HAS_RENDER;
498
499#if 0
500 if (major > 0 || (major == 0 && minor >= 11))
501 flags |= DISPLAY_HAS_RENDER_MUL;
502#endif
503
504 if (XFilters *filters = XRenderQueryFilters (dpy, root))
505 {
506 for (int i = 0; i < filters->nfilter; i++)
507 if (!strcmp (filters->filter [i], FilterConvolution))
508 flags |= DISPLAY_HAS_RENDER_CONV;
509
510 XFree (filters);
511 }
512 }
513#endif
514
467 int fd = XConnectionNumber (dpy); 515 int fd = XConnectionNumber (dpy);
468 516
469 // try to detect whether we have a local connection. 517 // try to detect whether we have a local connection.
470 // assume unix domain socket == local, everything else not 518 // assume unix domain socket == local, everything else not
471 // TODO: might want to check for inet/127.0.0.1 519 // TODO: might want to check for inet/127.0.0.1
491rxvt_display::ref_next () 539rxvt_display::ref_next ()
492{ 540{
493 // TODO: somehow check whether the database files/resources changed 541 // TODO: somehow check whether the database files/resources changed
494 // before affording re-loading/parsing 542 // before affording re-loading/parsing
495 XrmDestroyDatabase (XrmGetDatabase (dpy)); 543 XrmDestroyDatabase (XrmGetDatabase (dpy));
544#if XLIB_ILLEGAL_ACCESS
545 /* work around a bug in XrmSetDatabase where it frees the db */
546 dpy->db = 0;
547#endif
496 XrmSetDatabase (dpy, get_resources (true)); 548 XrmSetDatabase (dpy, get_resources (true));
497} 549}
498 550
499rxvt_display::~rxvt_display () 551rxvt_display::~rxvt_display ()
500{ 552{
504#ifdef POINTER_BLANK 556#ifdef POINTER_BLANK
505 XFreeCursor (dpy, blank_cursor); 557 XFreeCursor (dpy, blank_cursor);
506#endif 558#endif
507 x_ev.stop (); 559 x_ev.stop ();
508 flush_ev.stop (); 560 flush_ev.stop ();
509#ifdef USE_XIM 561#if USE_XIM
510 xims.clear (); 562 xims.clear ();
511#endif 563#endif
564 XrmDestroyDatabase (XrmGetDatabase (dpy));
512 XCloseDisplay (dpy); 565 XCloseDisplay (dpy);
513} 566}
514 567
515#ifdef USE_XIM 568#if USE_XIM
516void rxvt_display::im_change_cb () 569void rxvt_display::im_change_cb ()
517{ 570{
518 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 571 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
519 (*i)->call (); 572 (*i)->call ();
520} 573}
528 unsigned long nitems, bytes_after; 581 unsigned long nitems, bytes_after;
529 582
530 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L, 583 if (XGetWindowProperty (dpy, root, xa[XA_XIM_SERVERS], 0L, 1000000L,
531 False, XA_ATOM, &actual_type, &actual_format, 584 False, XA_ATOM, &actual_type, &actual_format,
532 &nitems, &bytes_after, (unsigned char **)&atoms) 585 &nitems, &bytes_after, (unsigned char **)&atoms)
533 != Success ) 586 != Success)
534 return; 587 return;
535 588
536 if (actual_type == XA_ATOM && actual_format == 32) 589 if (actual_type == XA_ATOM && actual_format == 32)
537 for (int i = 0; i < nitems; i++) 590 for (int i = 0; i < nitems; i++)
538 if (XGetSelectionOwner (dpy, atoms[i])) 591 if (XGetSelectionOwner (dpy, atoms[i]))
539 { 592 {
540 im_change_cb (); 593 im_change_cb ();
541 break; 594 break;
556 do 609 do
557 { 610 {
558 XEvent xev; 611 XEvent xev;
559 XNextEvent (dpy, &xev); 612 XNextEvent (dpy, &xev);
560 613
561#ifdef USE_XIM 614#if USE_XIM
562 if (!XFilterEvent (&xev, None)) 615 if (!XFilterEvent (&xev, None))
563 { 616 {
564 if (xev.type == PropertyNotify 617 if (xev.type == PropertyNotify
565 && xev.xany.window == root 618 && xev.xany.window == root
566 && xev.xproperty.atom == xa[XA_XIM_SERVERS]) 619 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
574 if (!xw[i]) 627 if (!xw[i])
575 xw.erase_unordered (i); 628 xw.erase_unordered (i);
576 else if (xw[i]->window == xev.xany.window) 629 else if (xw[i]->window == xev.xany.window)
577 xw[i]->call (xev); 630 xw[i]->call (xev);
578 } 631 }
579#ifdef USE_XIM 632#if USE_XIM
580 } 633 }
581#endif 634#endif
582 } 635 }
583 while (XEventsQueued (dpy, QueuedAlready)); 636 while (XEventsQueued (dpy, QueuedAlready));
584 637
615 } 668 }
616 669
617 cur_owner = owner; 670 cur_owner = owner;
618} 671}
619 672
620#ifdef USE_XIM 673#if USE_XIM
621 674
622void rxvt_display::reg (im_watcher *w) 675void rxvt_display::reg (im_watcher *w)
623{ 676{
624 imw.push_back (w); 677 imw.push_back (w);
625} 678}
660Atom rxvt_display::atom (const char *name) 713Atom rxvt_display::atom (const char *name)
661{ 714{
662 return XInternAtom (dpy, name, False); 715 return XInternAtom (dpy, name, False);
663} 716}
664 717
718Pixmap
719rxvt_display::get_pixmap_property (Atom property)
720{
721 Pixmap pixmap = None;
722
723 int aformat;
724 unsigned long nitems, bytes_after;
725 Atom atype;
726 unsigned char *prop;
727 int result = XGetWindowProperty (dpy, root, property,
728 0L, 1L, False, XA_PIXMAP, &atype, &aformat,
729 &nitems, &bytes_after, &prop);
730 if (result == Success)
731 {
732 if (atype == XA_PIXMAP)
733 pixmap = *(Pixmap *)prop;
734 XFree (prop);
735 }
736
737 return pixmap;
738}
739
665///////////////////////////////////////////////////////////////////////////// 740/////////////////////////////////////////////////////////////////////////////
666 741
667template class refcache<rxvt_display>; 742template class refcache<rxvt_display>;
668refcache<rxvt_display> displays; 743refcache<rxvt_display> displays;
669 744
678 753
679bool 754bool
680rxvt_color::alloc (rxvt_screen *screen, const rgba &color) 755rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
681{ 756{
682 //TODO: only supports 24 bit 757 //TODO: only supports 24 bit
683 int alpha = color.a >= 0xff00 ? 0xffff : color.a; 758 unsigned int alpha = color.a >= 0xff00 ? 0xffff : color.a;
684 759
685#if XFT 760#if XFT
686 XRenderPictFormat *format; 761 XRenderPictFormat *format;
687 762
688 // FUCKING Xft gets it wrong, of course, so work around it. 763 // FUCKING Xft gets it wrong, of course, so work around it.
695 c.color.red = color.r; 770 c.color.red = color.r;
696 c.color.green = color.g; 771 c.color.green = color.g;
697 c.color.blue = color.b; 772 c.color.blue = color.b;
698 c.color.alpha = alpha; 773 c.color.alpha = alpha;
699 774
775 // Xft wants premultiplied alpha, but abuses the alpha channel
776 // as blend factor, and doesn't allow us to set the alpha channel
777 c.color.red = c.color.red * alpha / 0xffff;
778 c.color.green = c.color.green * alpha / 0xffff;
779 c.color.blue = c.color.blue * alpha / 0xffff;
780
700 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red ) 781 c.pixel = insert_component (c.color.red , format->direct.redMask , format->direct.red )
701 | insert_component (color.g, format->direct.greenMask, format->direct.green) 782 | insert_component (c.color.green, format->direct.greenMask, format->direct.green)
702 | insert_component (color.b, format->direct.blueMask , format->direct.blue ) 783 | insert_component (c.color.blue , format->direct.blueMask , format->direct.blue )
703 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha); 784 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
704 785
705 return true; 786 return true;
706 } 787 }
707 else 788 else
708 { 789 {
711 d.red = color.r; 792 d.red = color.r;
712 d.green = color.g; 793 d.green = color.g;
713 d.blue = color.b; 794 d.blue = color.b;
714 d.alpha = alpha; 795 d.alpha = alpha;
715 796
716 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c); 797 if (XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c))
798 return true;
717 } 799 }
718#else 800#else
719 c.red = color.r; 801 c.red = color.r;
720 c.green = color.g; 802 c.green = color.g;
721 c.blue = color.b; 803 c.blue = color.b;
722 804
723 if (screen->visual->c_class == TrueColor) 805 if (screen->visual->c_class == TrueColor)
724 { 806 {
725 c.pixel = (color.r >> (16 - rxvt_popcount (screen->visual->red_mask )) << rxvt_ctz (screen->visual->red_mask )) 807 c.pixel = (color.r >> (16 - ecb_popcount32 (screen->visual->red_mask )) << ecb_ctz32 (screen->visual->red_mask ))
726 | (color.g >> (16 - rxvt_popcount (screen->visual->green_mask)) << rxvt_ctz (screen->visual->green_mask)) 808 | (color.g >> (16 - ecb_popcount32 (screen->visual->green_mask)) << ecb_ctz32 (screen->visual->green_mask))
727 | (color.b >> (16 - rxvt_popcount (screen->visual->blue_mask )) << rxvt_ctz (screen->visual->blue_mask )); 809 | (color.b >> (16 - ecb_popcount32 (screen->visual->blue_mask )) << ecb_ctz32 (screen->visual->blue_mask ));
728 810
729 return true; 811 return true;
730 } 812 }
731 else if (XAllocColor (screen->dpy, screen->cmap, &c)) 813 else if (XAllocColor (screen->dpy, screen->cmap, &c))
732 return true; 814 return true;
733 else 815#endif
816
734 c.pixel = (color.r + color.g + color.b) > 128*3 817 c.pixel = (color.r + color.g + color.b) > 128*3
735 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy)) 818 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
736 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy)); 819 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
737#endif
738 820
739 return false; 821 return false;
740} 822}
741 823
742bool 824bool
827 909
828 return got; 910 return got;
829} 911}
830 912
831void 913void
832rxvt_color::get (rgba &color) 914rxvt_color::get (rgba &color) const
833{ 915{
834#if XFT 916#if XFT
835 color.r = c.color.red; 917 color.r = c.color.red;
836 color.g = c.color.green; 918 color.g = c.color.green;
837 color.b = c.color.blue; 919 color.b = c.color.blue;
843 color.a = rgba::MAX_CC; 925 color.a = rgba::MAX_CC;
844#endif 926#endif
845} 927}
846 928
847void 929void
848rxvt_color::get (XColor &color) 930rxvt_color::get (XColor &color) const
849{ 931{
850 rgba c; 932 rgba c;
851 get (c); 933 get (c);
852 934
853 color.red = c.r; 935 color.red = c.r;
884 lerp (c.a, to.a, percent) 966 lerp (c.a, to.a, percent)
885 ) 967 )
886 ); 968 );
887} 969}
888 970
971rxvt_selection::rxvt_selection (rxvt_display *disp, int selnum, Time tm, Window win, Atom prop, rxvt_term *term)
972: display (disp), request_time (tm), request_win (win), request_prop (prop), term (term)
973{
974 assert (selnum >= Sel_Primary && selnum <= Sel_Clipboard);
975
976 timer_ev.set<rxvt_selection, &rxvt_selection::timer_cb> (this);
977 timer_ev.repeat = 10.;
978 x_ev.set<rxvt_selection, &rxvt_selection::x_cb> (this);
979
980 incr_buf = 0;
981 incr_buf_size = incr_buf_fill = 0;
982 selection_wait = Sel_normal;
983 selection_type = selnum;
984 cb_sv = 0;
985}
986
987void
988rxvt_selection::stop ()
989{
990 free (incr_buf);
991 incr_buf = 0;
992 timer_ev.stop ();
993 x_ev.stop (display);
994}
995
996rxvt_selection::~rxvt_selection ()
997{
998 stop ();
999}
1000
1001void
1002rxvt_selection::run ()
1003{
1004 int selnum = selection_type;
1005
1006#if ENABLE_FRILLS
1007 if (selnum == Sel_Primary && display->selection_owner)
1008 {
1009 /* internal selection */
1010 char *str = rxvt_wcstombs (display->selection_owner->selection.text, display->selection_owner->selection.len);
1011 finish (str, strlen (str));
1012 free (str);
1013 return;
1014 }
1015#endif
1016
1017#if X_HAVE_UTF8_STRING
1018 selection_type = Sel_UTF8String;
1019 if (request (display->xa[XA_UTF8_STRING], selnum))
1020 return;
1021#else
1022 selection_type = Sel_CompoundText;
1023 if (request (display->xa[XA_COMPOUND_TEXT], selnum))
1024 return;
1025#endif
1026
1027 // fallback to CUT_BUFFER0 if the requested property has no owner
1028 handle_selection (display->root, XA_CUT_BUFFER0, false);
1029}
1030
1031void
1032rxvt_selection::finish (char *data, unsigned int len)
1033{
1034 if (!cb_sv)
1035 {
1036 if (data)
1037 term->paste (data, len);
1038
1039 term->selection_req = 0;
1040 delete this;
1041 }
1042#if ENABLE_PERL
1043 else
1044 {
1045 stop (); // we do not really trust perl callbacks
1046 rxvt_perl.selection_finish (this, data, len);
1047 }
1048#endif
1049}
1050
1051bool
1052rxvt_selection::request (Atom target, int selnum)
1053{
1054 Atom sel;
1055
1056 selection_type |= selnum;
1057
1058 if (selnum == Sel_Primary)
1059 sel = XA_PRIMARY;
1060 else if (selnum == Sel_Secondary)
1061 sel = XA_SECONDARY;
1062 else
1063 sel = display->xa[XA_CLIPBOARD];
1064
1065 if (XGetSelectionOwner (display->dpy, sel) != None)
1066 {
1067 XConvertSelection (display->dpy, sel, target, request_prop,
1068 request_win, request_time);
1069 x_ev.start (display, request_win);
1070 timer_ev.again ();
1071 return true;
1072 }
1073
1074 return false;
1075}
1076
1077void
1078rxvt_selection::handle_selection (Window win, Atom prop, bool delete_prop)
1079{
1080 Display *dpy = display->dpy;
1081 char *data = 0;
1082 unsigned int data_len = 0;
1083 unsigned long bytes_after;
1084 XTextProperty ct;
1085
1086 // check for failed XConvertSelection
1087 if (prop == None)
1088 {
1089 bool error = true;
1090 int selnum = selection_type & Sel_whereMask;
1091
1092 if (selection_type & Sel_CompoundText)
1093 {
1094 selection_type = 0;
1095 error = !request (XA_STRING, selnum);
1096 }
1097
1098 if (selection_type & Sel_UTF8String)
1099 {
1100 selection_type = Sel_CompoundText;
1101 error = !request (display->xa[XA_COMPOUND_TEXT], selnum);
1102 }
1103
1104 if (error)
1105 {
1106 ct.value = 0;
1107 goto bailout;
1108 }
1109
1110 return;
1111 }
1112
1113 // length == (2^31 - 1) / 4, as gdk
1114 if (XGetWindowProperty (dpy, win, prop,
1115 0, 0x1fffffff,
1116 delete_prop, AnyPropertyType,
1117 &ct.encoding, &ct.format,
1118 &ct.nitems, &bytes_after,
1119 &ct.value) != Success)
1120 {
1121 ct.value = 0;
1122 goto bailout;
1123 }
1124
1125 if (ct.encoding == None)
1126 goto bailout;
1127
1128 if (ct.value == 0)
1129 goto bailout;
1130
1131 if (ct.encoding == display->xa[XA_INCR])
1132 {
1133 // INCR selection, start handshake
1134 if (!delete_prop)
1135 XDeleteProperty (dpy, win, prop);
1136
1137 selection_wait = Sel_incr;
1138 timer_ev.again ();
1139
1140 goto bailout;
1141 }
1142
1143 if (ct.nitems == 0)
1144 {
1145 if (selection_wait == Sel_incr)
1146 {
1147 XFree (ct.value);
1148
1149 // finally complete, now paste the whole thing
1150 selection_wait = Sel_normal;
1151 ct.value = (unsigned char *)incr_buf;
1152 ct.nitems = incr_buf_fill;
1153 incr_buf = 0;
1154 timer_ev.stop ();
1155 }
1156 else
1157 {
1158 // avoid recursion
1159 if (win != display->root || prop != XA_CUT_BUFFER0)
1160 {
1161 XFree (ct.value);
1162
1163 // fallback to CUT_BUFFER0 if the requested property
1164 // has an owner but is empty
1165 handle_selection (display->root, XA_CUT_BUFFER0, False);
1166 return;
1167 }
1168
1169 goto bailout;
1170 }
1171 }
1172 else if (selection_wait == Sel_incr)
1173 {
1174 timer_ev.again ();
1175
1176 while (incr_buf_fill + ct.nitems > incr_buf_size)
1177 {
1178 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
1179 incr_buf = (char *)rxvt_realloc (incr_buf, incr_buf_size);
1180 }
1181
1182 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
1183 incr_buf_fill += ct.nitems;
1184
1185 goto bailout;
1186 }
1187
1188 char **cl;
1189 int cr;
1190
1191 // we honour the first item only
1192
1193#if !ENABLE_MINIMAL
1194 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
1195 // so recode it manually
1196 if (ct.encoding == display->xa[XA_UTF8_STRING])
1197 {
1198 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
1199 data = rxvt_wcstombs (w);
1200 free (w);
1201 }
1202 else
1203#endif
1204 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
1205 && cl)
1206 {
1207 data = strdup (cl[0]);
1208 XFreeStringList (cl);
1209 }
1210 else
1211 {
1212 // paste raw
1213 data = strdup ((const char *)ct.value);
1214 }
1215
1216 data_len = strlen (data);
1217
1218bailout:
1219 XFree (ct.value);
1220
1221 if (selection_wait == Sel_normal)
1222 {
1223 finish (data, data_len);
1224 free (data);
1225 }
1226}
1227
1228void
1229rxvt_selection::timer_cb (ev::timer &w, int revents)
1230{
1231 if (selection_wait == Sel_incr)
1232 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
1233
1234 finish ();
1235}
1236
1237void
1238rxvt_selection::x_cb (XEvent &xev)
1239{
1240 switch (xev.type)
1241 {
1242 case PropertyNotify:
1243 if (selection_wait == Sel_incr
1244 && xev.xproperty.atom == request_prop
1245 && xev.xproperty.state == PropertyNewValue)
1246 handle_selection (xev.xproperty.window, xev.xproperty.atom, true);
1247 break;
1248
1249 case SelectionNotify:
1250 if (selection_wait == Sel_normal
1251 && xev.xselection.time == request_time)
1252 {
1253 timer_ev.stop ();
1254 handle_selection (xev.xselection.requestor, xev.xselection.property, true);
1255 }
1256 break;
1257 }
1258}

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