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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.113 by sf-exg, Fri Jan 14 11:09:54 2011 UTC vs.
Revision 1.149 by root, Wed Dec 17 16:03:51 2014 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 3 of the License, or
11 * (at your option) any later version. 12 * (at your option) any later version.
12 * 13 *
13 * This program is distributed in the hope that it will be useful, 14 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
… …
21 *----------------------------------------------------------------------*/ 22 *----------------------------------------------------------------------*/
22 23
23#include "../config.h" 24#include "../config.h"
24#include <rxvt.h> 25#include <rxvt.h>
25#include <rxvttoolkit.h> 26#include <rxvttoolkit.h>
27
28#include <stdlib.h>
26 29
27#include <unistd.h> 30#include <unistd.h>
28#include <fcntl.h> 31#include <fcntl.h>
29 32
30#include <sys/utsname.h> 33#include <sys/utsname.h>
… …
65#endif 68#endif
66#if USE_XIM 69#if USE_XIM
67 "WM_LOCALE_NAME", 70 "WM_LOCALE_NAME",
68 "XIM_SERVERS", 71 "XIM_SERVERS",
69#endif 72#endif
70#ifdef ENABLE_TRANSPARENCY 73#if HAVE_IMG || ENABLE_PERL
71 "_XROOTPMAP_ID", 74 "_XROOTPMAP_ID",
72 "ESETROOT_PMAP_ID", 75 "ESETROOT_PMAP_ID",
73#endif 76#endif
74#if ENABLE_XEMBED 77#if ENABLE_XEMBED
75 "_XEMBED", 78 "_XEMBED",
… …
152 put (*this->begin ()); 155 put (*this->begin ());
153} 156}
154 157
155///////////////////////////////////////////////////////////////////////////// 158/////////////////////////////////////////////////////////////////////////////
156 159
157#ifdef USE_XIM 160#if USE_XIM
158 161
159static void 162static void
160#if XIMCB_PROTO_BROKEN 163#if XIMCB_PROTO_BROKEN
161im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3) 164im_destroy_cb (XIC unused1, XPointer client_data, XPointer unused3)
162#else 165#else
… …
259 depth = DefaultDepthOfScreen (screen); 262 depth = DefaultDepthOfScreen (screen);
260 visual = DefaultVisualOfScreen (screen); 263 visual = DefaultVisualOfScreen (screen);
261 cmap = DefaultColormapOfScreen (screen); 264 cmap = DefaultColormapOfScreen (screen);
262} 265}
263 266
267#if ENABLE_FRILLS
268
264void 269void
265rxvt_screen::select_visual (int bitdepth) 270rxvt_screen::select_visual (int id)
266{ 271{
267#if XFT
268 XVisualInfo vinfo; 272 XVisualInfo vinfo;
273 vinfo.visualid = id;
274 int n;
275
276 if (XVisualInfo *vi = XGetVisualInfo (dpy, VisualIDMask, &vinfo, &n))
277 {
278 depth = vi->depth;
279 visual = vi->visual;
280
281 XFree (vi);
282
283 cmap = XCreateColormap (dpy, display->root, visual, AllocNone);
284 }
285 else
286 rxvt_warn ("no visual found for requested id 0x%02x, using default visual.\n", id);
287}
288
289void
290rxvt_screen::select_depth (int bitdepth)
291{
292 XVisualInfo vinfo;
269 293
270 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo)) 294 if (XMatchVisualInfo (dpy, display->screen, bitdepth, TrueColor, &vinfo))
271 {
272 depth = bitdepth;
273 visual = vinfo.visual; 295 select_visual (vinfo.visualid);
274 cmap = XCreateColormap (dpy, display->root, visual, AllocNone); 296 else
275 } 297 rxvt_warn ("no visual found for requested depth %d, using default visual.\n", bitdepth);
276#endif
277} 298}
299
300#endif
278 301
279void 302void
280rxvt_screen::clear () 303rxvt_screen::clear ()
281{ 304{
282#if XFT 305#if XFT
… …
311 /* 334 /*
312 * get resources using the X library function 335 * get resources using the X library function
313 */ 336 */
314 char *displayResource, *xe; 337 char *displayResource, *xe;
315 XrmDatabase rdb1, database = 0; 338 XrmDatabase rdb1, database = 0;
339
340#if !XLIB_ILLEGAL_ACCESS
341 /* work around a bug in XrmSetDatabase where it frees the db, see ref_next */
342 database = XrmGetStringDatabase ("");
343#endif
316 344
317 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20 345 // for ordering, see for example http://www.faqs.org/faqs/Xt-FAQ/ Subject: 20
318 // as opposed to "standard practise", we always read in ~/.Xdefaults 346 // as opposed to "standard practise", we always read in ~/.Xdefaults
319 347
320 // 6. System wide per application default file. 348 // 6. System wide per application default file.
… …
424bool rxvt_display::ref_init () 452bool rxvt_display::ref_init ()
425{ 453{
426#ifdef LOCAL_X_IS_UNIX 454#ifdef LOCAL_X_IS_UNIX
427 if (id[0] == ':') 455 if (id[0] == ':')
428 { 456 {
429 if (!(val = rxvt_temp_buf<char> (5 + strlen (id) + 1))) 457 char *val = rxvt_temp_buf<char> (5 + strlen (id) + 1);
430 return false; 458
431 strcpy (val, "unix/"); 459 strcpy (val, "unix/");
432 strcat (val, id); 460 strcat (val, id);
461
433 dpy = XOpenDisplay (val); 462 dpy = XOpenDisplay (val);
434 } 463 }
435 else 464 else
436#endif 465#endif
437 dpy = 0; 466 dpy = 0;
… …
443 return false; 472 return false;
444 473
445 screen = DefaultScreen (dpy); 474 screen = DefaultScreen (dpy);
446 root = DefaultRootWindow (dpy); 475 root = DefaultRootWindow (dpy);
447 476
448 assert (ARRAY_LENGTH(xa_names) == NUM_XA); 477 assert (ecb_array_length (xa_names) == NUM_XA);
449 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa); 478 XInternAtoms (dpy, (char **)xa_names, NUM_XA, False, xa);
450 479
451 XrmSetDatabase (dpy, get_resources (false)); 480 XrmSetDatabase (dpy, get_resources (false));
452 481
453#ifdef POINTER_BLANK 482#ifdef POINTER_BLANK
… …
459 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ', 488 blank_cursor = XCreateGlyphCursor (dpy, f, f, ' ', ' ',
460 &blackcolour, &blackcolour); 489 &blackcolour, &blackcolour);
461 XUnloadFont (dpy, f); 490 XUnloadFont (dpy, f);
462#endif 491#endif
463 492
493 flags = 0;
494#if XRENDER
495 int major, minor;
496 if (XRenderQueryVersion (dpy, &major, &minor))
497 if (major > 0 || (major == 0 && minor >= 11))
498 {
499 flags |= DISPLAY_HAS_RENDER;
500
501 if (XFilters *filters = XRenderQueryFilters (dpy, root))
502 {
503 for (int i = 0; i < filters->nfilter; i++)
504 if (!strcmp (filters->filter [i], FilterConvolution))
505 flags |= DISPLAY_HAS_RENDER_CONV;
506
507 XFree (filters);
508 }
509 }
510#endif
511
464 int fd = XConnectionNumber (dpy); 512 int fd = XConnectionNumber (dpy);
465 513
466 // try to detect whether we have a local connection. 514 // try to detect whether we have a local connection.
467 // assume unix domain socket == local, everything else not 515 // assume unix domain socket == local, everything else not
468 // TODO: might want to check for inet/127.0.0.1 516 // TODO: might want to check for inet/127.0.0.1
… …
488rxvt_display::ref_next () 536rxvt_display::ref_next ()
489{ 537{
490 // TODO: somehow check whether the database files/resources changed 538 // TODO: somehow check whether the database files/resources changed
491 // before affording re-loading/parsing 539 // before affording re-loading/parsing
492 XrmDestroyDatabase (XrmGetDatabase (dpy)); 540 XrmDestroyDatabase (XrmGetDatabase (dpy));
541#if XLIB_ILLEGAL_ACCESS
542 /* work around a bug in XrmSetDatabase where it frees the db */
543 dpy->db = 0;
544#endif
493 XrmSetDatabase (dpy, get_resources (true)); 545 XrmSetDatabase (dpy, get_resources (true));
494} 546}
495 547
496rxvt_display::~rxvt_display () 548rxvt_display::~rxvt_display ()
497{ 549{
… …
501#ifdef POINTER_BLANK 553#ifdef POINTER_BLANK
502 XFreeCursor (dpy, blank_cursor); 554 XFreeCursor (dpy, blank_cursor);
503#endif 555#endif
504 x_ev.stop (); 556 x_ev.stop ();
505 flush_ev.stop (); 557 flush_ev.stop ();
506#ifdef USE_XIM 558#if USE_XIM
507 xims.clear (); 559 xims.clear ();
508#endif 560#endif
509 XrmDestroyDatabase (XrmGetDatabase (dpy)); 561 XrmDestroyDatabase (XrmGetDatabase (dpy));
510 XCloseDisplay (dpy); 562 XCloseDisplay (dpy);
511} 563}
512 564
513#ifdef USE_XIM 565#if USE_XIM
514void rxvt_display::im_change_cb () 566void rxvt_display::im_change_cb ()
515{ 567{
516 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 568 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
517 (*i)->call (); 569 (*i)->call ();
518} 570}
… …
554 do 606 do
555 { 607 {
556 XEvent xev; 608 XEvent xev;
557 XNextEvent (dpy, &xev); 609 XNextEvent (dpy, &xev);
558 610
559#ifdef USE_XIM 611#if USE_XIM
560 if (!XFilterEvent (&xev, None)) 612 if (!XFilterEvent (&xev, None))
561 { 613 {
562 if (xev.type == PropertyNotify 614 if (xev.type == PropertyNotify
563 && xev.xany.window == root 615 && xev.xany.window == root
564 && xev.xproperty.atom == xa[XA_XIM_SERVERS]) 616 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
… …
572 if (!xw[i]) 624 if (!xw[i])
573 xw.erase_unordered (i); 625 xw.erase_unordered (i);
574 else if (xw[i]->window == xev.xany.window) 626 else if (xw[i]->window == xev.xany.window)
575 xw[i]->call (xev); 627 xw[i]->call (xev);
576 } 628 }
577#ifdef USE_XIM 629#if USE_XIM
578 } 630 }
579#endif 631#endif
580 } 632 }
581 while (XEventsQueued (dpy, QueuedAlready)); 633 while (XEventsQueued (dpy, QueuedAlready));
582 634
… …
613 } 665 }
614 666
615 cur_owner = owner; 667 cur_owner = owner;
616} 668}
617 669
618#ifdef USE_XIM 670#if USE_XIM
619 671
620void rxvt_display::reg (im_watcher *w) 672void rxvt_display::reg (im_watcher *w)
621{ 673{
622 imw.push_back (w); 674 imw.push_back (w);
623} 675}
… …
658Atom rxvt_display::atom (const char *name) 710Atom rxvt_display::atom (const char *name)
659{ 711{
660 return XInternAtom (dpy, name, False); 712 return XInternAtom (dpy, name, False);
661} 713}
662 714
715Pixmap
716rxvt_display::get_pixmap_property (Atom property)
717{
718 Pixmap pixmap = None;
719
720 int aformat;
721 unsigned long nitems, bytes_after;
722 Atom atype;
723 unsigned char *prop;
724 int result = XGetWindowProperty (dpy, root, property,
725 0L, 1L, False, XA_PIXMAP, &atype, &aformat,
726 &nitems, &bytes_after, &prop);
727 if (result == Success)
728 {
729 if (atype == XA_PIXMAP)
730 pixmap = *(Pixmap *)prop;
731 XFree (prop);
732 }
733
734 return pixmap;
735}
736
663///////////////////////////////////////////////////////////////////////////// 737/////////////////////////////////////////////////////////////////////////////
664 738
665template class refcache<rxvt_display>; 739template class refcache<rxvt_display>;
666refcache<rxvt_display> displays; 740refcache<rxvt_display> displays;
667 741
… …
676 750
677bool 751bool
678rxvt_color::alloc (rxvt_screen *screen, const rgba &color) 752rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
679{ 753{
680 //TODO: only supports 24 bit 754 //TODO: only supports 24 bit
681 int alpha = color.a >= 0xff00 ? 0xffff : color.a; 755 unsigned int alpha = color.a >= 0xff00 ? 0xffff : color.a;
682 756
683#if XFT 757#if XFT
684 XRenderPictFormat *format; 758 XRenderPictFormat *format;
759
760 // not needed by XftColorAlloc, but by the other paths (ours
761 // and fallback), so just set all components here.
762 c.color.red = color.r;
763 c.color.green = color.g;
764 c.color.blue = color.b;
765 c.color.alpha = alpha;
685 766
686 // FUCKING Xft gets it wrong, of course, so work around it. 767 // FUCKING Xft gets it wrong, of course, so work around it.
687 // Transparency users should eat shit and die, and then 768 // Transparency users should eat shit and die, and then
688 // XRenderQueryPictIndexValues themselves plenty. 769 // XRenderQueryPictIndexValues themselves plenty.
689 if ((screen->visual->c_class == TrueColor) 770 if ((screen->visual->c_class == TrueColor)
690 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual))) 771 && (format = XRenderFindVisualFormat (screen->dpy, screen->visual)))
691 { 772 {
692 // the fun lies in doing everything manually... 773 // the fun lies in doing everything manually...
693 c.color.red = color.r;
694 c.color.green = color.g;
695 c.color.blue = color.b;
696 c.color.alpha = alpha;
697 774
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
698 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 )
699 | insert_component (color.g, format->direct.greenMask, format->direct.green) 782 | insert_component (c.color.green, format->direct.greenMask, format->direct.green)
700 | insert_component (color.b, format->direct.blueMask , format->direct.blue ) 783 | insert_component (c.color.blue , format->direct.blueMask , format->direct.blue )
701 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha); 784 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
702 785
703 return true; 786 return true;
704 } 787 }
705 else 788 else
706 { 789 {
… …
709 d.red = color.r; 792 d.red = color.r;
710 d.green = color.g; 793 d.green = color.g;
711 d.blue = color.b; 794 d.blue = color.b;
712 d.alpha = alpha; 795 d.alpha = alpha;
713 796
797 // XftColorAlloc always returns 100% transparent pixels(!)
714 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c); 798 if (XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c))
799 return true;
715 } 800 }
716#else 801#else
717 c.red = color.r; 802 c.red = color.r;
718 c.green = color.g; 803 c.green = color.g;
719 c.blue = color.b; 804 c.blue = color.b;
720 805
721 if (screen->visual->c_class == TrueColor) 806 if (screen->visual->c_class == TrueColor)
722 { 807 {
723 c.pixel = (color.r >> (16 - rxvt_popcount (screen->visual->red_mask )) << rxvt_ctz (screen->visual->red_mask )) 808 c.pixel = (color.r >> (16 - ecb_popcount32 (screen->visual->red_mask )) << ecb_ctz32 (screen->visual->red_mask ))
724 | (color.g >> (16 - rxvt_popcount (screen->visual->green_mask)) << rxvt_ctz (screen->visual->green_mask)) 809 | (color.g >> (16 - ecb_popcount32 (screen->visual->green_mask)) << ecb_ctz32 (screen->visual->green_mask))
725 | (color.b >> (16 - rxvt_popcount (screen->visual->blue_mask )) << rxvt_ctz (screen->visual->blue_mask )); 810 | (color.b >> (16 - ecb_popcount32 (screen->visual->blue_mask )) << ecb_ctz32 (screen->visual->blue_mask ));
726 811
727 return true; 812 return true;
728 } 813 }
729 else if (XAllocColor (screen->dpy, screen->cmap, &c)) 814 else if (XAllocColor (screen->dpy, screen->cmap, &c))
730 return true; 815 return true;
731 else 816#endif
817
732 c.pixel = (color.r + color.g + color.b) > 128*3 818 c.pixel = (color.r * 2 + color.g * 3 + color.b) >= 0x8000 * 6
733 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy)) 819 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
734 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy)); 820 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
735#endif
736 821
737 return false; 822 return false;
738} 823}
739 824
740bool 825bool
… …
796 881
797 // many kilobytes transfer per colour, but pseudocolor isn't worth 882 // many kilobytes transfer per colour, but pseudocolor isn't worth
798 // many extra optimisations. 883 // many extra optimisations.
799 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size); 884 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
800 885
886 while (cmap_size)
887 {
801 int diff = 0x7fffffffUL; 888 int diff = 0x7fffffffL;
802 XColor *best = colors; 889 XColor *best = colors;
803 890
804 for (int i = 0; i < cmap_size; i++) 891 for (int i = 0; i < cmap_size; i++)
805 {
806 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
807 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
808 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
809
810 if (d < diff)
811 { 892 {
893 // simple weighted rgb distance sucks, but keeps it simple
894 int d = abs (color.r - colors [i].red ) * 2
895 + abs (color.g - colors [i].green) * 3
896 + abs (color.b - colors [i].blue );
897
898 if (d < diff)
899 {
812 diff = d; 900 diff = d;
813 best = colors + i; 901 best = colors + i;
902 }
814 } 903 }
815 }
816 904
817 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n", 905 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d,%d)\n",
818 // color.r, color.g, color.b, best->red, best->green, best->blue, diff); 906 // color.r, color.g, color.b, best->red, best->green, best->blue, diff, best - colors);
819 907
820 got = alloc (screen, rgba (best->red, best->green, best->blue)); 908 got = alloc (screen, rgba (best->red, best->green, best->blue));
909
910 if (got)
911 break;
912
913 *best = colors [--cmap_size];
914 }
821 915
822 delete [] colors; 916 delete [] colors;
823 } 917 }
824#endif 918#endif
825 919
826 return got; 920 return got;
827} 921}
828 922
829void 923void
830rxvt_color::get (rgba &color) 924rxvt_color::get (rgba &color) const
831{ 925{
832#if XFT 926#if XFT
927
833 color.r = c.color.red; 928 color.r = c.color.red;
834 color.g = c.color.green; 929 color.g = c.color.green;
835 color.b = c.color.blue; 930 color.b = c.color.blue;
836 color.a = c.color.alpha; 931 color.a = c.color.alpha;
932
933 if (IN_RANGE_INC (color.a, 0x0001, 0xfffe))
934 {
935 color.r = color.r * 0xffff / color.a;
936 color.g = color.g * 0xffff / color.a;
937 color.b = color.b * 0xffff / color.a;
938 }
939
837#else 940#else
941
838 color.r = c.red; 942 color.r = c.red;
839 color.g = c.green; 943 color.g = c.green;
840 color.b = c.blue; 944 color.b = c.blue;
841 color.a = rgba::MAX_CC; 945 color.a = rgba::MAX_CC;
842#endif
843}
844 946
947#endif
948}
949
845void 950void
846rxvt_color::get (XColor &color) 951rxvt_color::get (XColor &color) const
847{ 952{
848 rgba c; 953 rgba c;
849 get (c); 954 get (c);
850 955
851 color.red = c.r; 956 color.red = c.r;
… …
882 lerp (c.a, to.a, percent) 987 lerp (c.a, to.a, percent)
883 ) 988 )
884 ); 989 );
885} 990}
886 991
992rxvt_selection::rxvt_selection (rxvt_display *disp, int selnum, Time tm, Window win, Atom prop, rxvt_term *term)
993: display (disp), request_time (tm), request_win (win), request_prop (prop), term (term)
994{
995 assert (selnum >= Sel_Primary && selnum <= Sel_Clipboard);
996
997 timer_ev.set<rxvt_selection, &rxvt_selection::timer_cb> (this);
998 timer_ev.repeat = 10.;
999 x_ev.set<rxvt_selection, &rxvt_selection::x_cb> (this);
1000
1001 incr_buf = 0;
1002 incr_buf_size = incr_buf_fill = 0;
1003 selection_wait = Sel_normal;
1004 selection_type = selnum;
1005 cb_sv = 0;
1006}
1007
1008void
1009rxvt_selection::stop ()
1010{
1011 free (incr_buf);
1012 incr_buf = 0;
1013 timer_ev.stop ();
1014 x_ev.stop (display);
1015}
1016
1017rxvt_selection::~rxvt_selection ()
1018{
1019 stop ();
1020}
1021
1022void
1023rxvt_selection::run ()
1024{
1025 int selnum = selection_type;
1026
1027#if ENABLE_FRILLS
1028 if (selnum == Sel_Primary && display->selection_owner)
1029 {
1030 /* internal selection */
1031 char *str = rxvt_wcstombs (display->selection_owner->selection.text, display->selection_owner->selection.len);
1032 finish (str, strlen (str));
1033 free (str);
1034 return;
1035 }
1036#endif
1037
1038#if X_HAVE_UTF8_STRING
1039 selection_type = Sel_UTF8String;
1040 if (request (display->xa[XA_UTF8_STRING], selnum))
1041 return;
1042#else
1043 selection_type = Sel_CompoundText;
1044 if (request (display->xa[XA_COMPOUND_TEXT], selnum))
1045 return;
1046#endif
1047
1048 // fallback to CUT_BUFFER0 if the requested property has no owner
1049 handle_selection (display->root, XA_CUT_BUFFER0, false);
1050}
1051
1052void
1053rxvt_selection::finish (char *data, unsigned int len)
1054{
1055 if (!cb_sv)
1056 {
1057 if (data)
1058 term->paste (data, len);
1059
1060 term->selection_req = 0;
1061 delete this;
1062 }
1063#if ENABLE_PERL
1064 else
1065 {
1066 stop (); // we do not really trust perl callbacks
1067 rxvt_perl.selection_finish (this, data, len);
1068 }
1069#endif
1070}
1071
1072bool
1073rxvt_selection::request (Atom target, int selnum)
1074{
1075 Atom sel;
1076
1077 selection_type |= selnum;
1078
1079 if (selnum == Sel_Primary)
1080 sel = XA_PRIMARY;
1081 else if (selnum == Sel_Secondary)
1082 sel = XA_SECONDARY;
1083 else
1084 sel = display->xa[XA_CLIPBOARD];
1085
1086 if (XGetSelectionOwner (display->dpy, sel) != None)
1087 {
1088 XConvertSelection (display->dpy, sel, target, request_prop,
1089 request_win, request_time);
1090 x_ev.start (display, request_win);
1091 timer_ev.again ();
1092 return true;
1093 }
1094
1095 return false;
1096}
1097
1098void
1099rxvt_selection::handle_selection (Window win, Atom prop, bool delete_prop)
1100{
1101 Display *dpy = display->dpy;
1102 char *data = 0;
1103 unsigned int data_len = 0;
1104 unsigned long bytes_after;
1105 XTextProperty ct;
1106
1107 // check for failed XConvertSelection
1108 if (prop == None)
1109 {
1110 bool error = true;
1111 int selnum = selection_type & Sel_whereMask;
1112
1113 if (selection_type & Sel_CompoundText)
1114 {
1115 selection_type = 0;
1116 error = !request (XA_STRING, selnum);
1117 }
1118
1119 if (selection_type & Sel_UTF8String)
1120 {
1121 selection_type = Sel_CompoundText;
1122 error = !request (display->xa[XA_COMPOUND_TEXT], selnum);
1123 }
1124
1125 if (error)
1126 {
1127 ct.value = 0;
1128 goto bailout;
1129 }
1130
1131 return;
1132 }
1133
1134 // length == (2^31 - 1) / 4, as gdk
1135 if (XGetWindowProperty (dpy, win, prop,
1136 0, 0x1fffffff,
1137 delete_prop, AnyPropertyType,
1138 &ct.encoding, &ct.format,
1139 &ct.nitems, &bytes_after,
1140 &ct.value) != Success)
1141 {
1142 ct.value = 0;
1143 goto bailout;
1144 }
1145
1146 if (ct.encoding == None)
1147 goto bailout;
1148
1149 if (ct.value == 0)
1150 goto bailout;
1151
1152 if (ct.encoding == display->xa[XA_INCR])
1153 {
1154 // INCR selection, start handshake
1155 if (!delete_prop)
1156 XDeleteProperty (dpy, win, prop);
1157
1158 selection_wait = Sel_incr;
1159 timer_ev.again ();
1160
1161 goto bailout;
1162 }
1163
1164 if (ct.nitems == 0)
1165 {
1166 if (selection_wait == Sel_incr)
1167 {
1168 XFree (ct.value);
1169
1170 // finally complete, now paste the whole thing
1171 selection_wait = Sel_normal;
1172 ct.value = (unsigned char *)incr_buf;
1173 ct.nitems = incr_buf_fill;
1174 incr_buf = 0;
1175 timer_ev.stop ();
1176 }
1177 else
1178 {
1179 // avoid recursion
1180 if (win != display->root || prop != XA_CUT_BUFFER0)
1181 {
1182 XFree (ct.value);
1183
1184 // fallback to CUT_BUFFER0 if the requested property
1185 // has an owner but is empty
1186 handle_selection (display->root, XA_CUT_BUFFER0, False);
1187 return;
1188 }
1189
1190 goto bailout;
1191 }
1192 }
1193 else if (selection_wait == Sel_incr)
1194 {
1195 timer_ev.again ();
1196
1197 while (incr_buf_fill + ct.nitems > incr_buf_size)
1198 {
1199 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
1200 incr_buf = (char *)rxvt_realloc (incr_buf, incr_buf_size);
1201 }
1202
1203 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
1204 incr_buf_fill += ct.nitems;
1205
1206 goto bailout;
1207 }
1208
1209 char **cl;
1210 int cr;
1211
1212 // we honour the first item only
1213
1214#if !ENABLE_MINIMAL
1215 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
1216 // so recode it manually
1217 if (ct.encoding == display->xa[XA_UTF8_STRING])
1218 {
1219 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
1220 data = rxvt_wcstombs (w);
1221 free (w);
1222 }
1223 else
1224#endif
1225 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
1226 && cl)
1227 {
1228 data = strdup (cl[0]);
1229 XFreeStringList (cl);
1230 }
1231 else
1232 {
1233 // paste raw
1234 data = strdup ((const char *)ct.value);
1235 }
1236
1237 data_len = strlen (data);
1238
1239bailout:
1240 XFree (ct.value);
1241
1242 if (selection_wait == Sel_normal)
1243 {
1244 finish (data, data_len);
1245 free (data);
1246 }
1247}
1248
1249void
1250rxvt_selection::timer_cb (ev::timer &w, int revents)
1251{
1252 if (selection_wait == Sel_incr)
1253 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
1254
1255 finish ();
1256}
1257
1258void
1259rxvt_selection::x_cb (XEvent &xev)
1260{
1261 switch (xev.type)
1262 {
1263 case PropertyNotify:
1264 if (selection_wait == Sel_incr
1265 && xev.xproperty.atom == request_prop
1266 && xev.xproperty.state == PropertyNewValue)
1267 handle_selection (xev.xproperty.window, xev.xproperty.atom, true);
1268 break;
1269
1270 case SelectionNotify:
1271 if (selection_wait == Sel_normal
1272 && xev.xselection.time == request_time)
1273 {
1274 timer_ev.stop ();
1275 handle_selection (xev.xselection.requestor, xev.xselection.property, true);
1276 }
1277 break;
1278 }
1279}

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