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Comparing rxvt-unicode/src/rxvttoolkit.C (file contents):
Revision 1.109 by sf-exg, Mon Dec 13 08:29:25 2010 UTC vs.
Revision 1.145 by root, Sat Dec 13 10:47:32 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
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 ("no visual found for requested 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.
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 >= 11))
496 {
497 flags |= DISPLAY_HAS_RENDER;
498
499 if (XFilters *filters = XRenderQueryFilters (dpy, root))
500 {
501 for (int i = 0; i < filters->nfilter; i++)
502 if (!strcmp (filters->filter [i], FilterConvolution))
503 flags |= DISPLAY_HAS_RENDER_CONV;
504
505 XFree (filters);
506 }
507 }
508#endif
509
467 int fd = XConnectionNumber (dpy); 510 int fd = XConnectionNumber (dpy);
468 511
469 // try to detect whether we have a local connection. 512 // try to detect whether we have a local connection.
470 // assume unix domain socket == local, everything else not 513 // assume unix domain socket == local, everything else not
471 // TODO: might want to check for inet/127.0.0.1 514 // TODO: might want to check for inet/127.0.0.1
491rxvt_display::ref_next () 534rxvt_display::ref_next ()
492{ 535{
493 // TODO: somehow check whether the database files/resources changed 536 // TODO: somehow check whether the database files/resources changed
494 // before affording re-loading/parsing 537 // before affording re-loading/parsing
495 XrmDestroyDatabase (XrmGetDatabase (dpy)); 538 XrmDestroyDatabase (XrmGetDatabase (dpy));
539#if XLIB_ILLEGAL_ACCESS
540 /* work around a bug in XrmSetDatabase where it frees the db */
541 dpy->db = 0;
542#endif
496 XrmSetDatabase (dpy, get_resources (true)); 543 XrmSetDatabase (dpy, get_resources (true));
497} 544}
498 545
499rxvt_display::~rxvt_display () 546rxvt_display::~rxvt_display ()
500{ 547{
504#ifdef POINTER_BLANK 551#ifdef POINTER_BLANK
505 XFreeCursor (dpy, blank_cursor); 552 XFreeCursor (dpy, blank_cursor);
506#endif 553#endif
507 x_ev.stop (); 554 x_ev.stop ();
508 flush_ev.stop (); 555 flush_ev.stop ();
509#ifdef USE_XIM 556#if USE_XIM
510 xims.clear (); 557 xims.clear ();
511#endif 558#endif
559 XrmDestroyDatabase (XrmGetDatabase (dpy));
512 XCloseDisplay (dpy); 560 XCloseDisplay (dpy);
513} 561}
514 562
515#ifdef USE_XIM 563#if USE_XIM
516void rxvt_display::im_change_cb () 564void rxvt_display::im_change_cb ()
517{ 565{
518 for (im_watcher **i = imw.begin (); i != imw.end (); ++i) 566 for (im_watcher **i = imw.begin (); i != imw.end (); ++i)
519 (*i)->call (); 567 (*i)->call ();
520} 568}
556 do 604 do
557 { 605 {
558 XEvent xev; 606 XEvent xev;
559 XNextEvent (dpy, &xev); 607 XNextEvent (dpy, &xev);
560 608
561#ifdef USE_XIM 609#if USE_XIM
562 if (!XFilterEvent (&xev, None)) 610 if (!XFilterEvent (&xev, None))
563 { 611 {
564 if (xev.type == PropertyNotify 612 if (xev.type == PropertyNotify
565 && xev.xany.window == root 613 && xev.xany.window == root
566 && xev.xproperty.atom == xa[XA_XIM_SERVERS]) 614 && xev.xproperty.atom == xa[XA_XIM_SERVERS])
574 if (!xw[i]) 622 if (!xw[i])
575 xw.erase_unordered (i); 623 xw.erase_unordered (i);
576 else if (xw[i]->window == xev.xany.window) 624 else if (xw[i]->window == xev.xany.window)
577 xw[i]->call (xev); 625 xw[i]->call (xev);
578 } 626 }
579#ifdef USE_XIM 627#if USE_XIM
580 } 628 }
581#endif 629#endif
582 } 630 }
583 while (XEventsQueued (dpy, QueuedAlready)); 631 while (XEventsQueued (dpy, QueuedAlready));
584 632
615 } 663 }
616 664
617 cur_owner = owner; 665 cur_owner = owner;
618} 666}
619 667
620#ifdef USE_XIM 668#if USE_XIM
621 669
622void rxvt_display::reg (im_watcher *w) 670void rxvt_display::reg (im_watcher *w)
623{ 671{
624 imw.push_back (w); 672 imw.push_back (w);
625} 673}
660Atom rxvt_display::atom (const char *name) 708Atom rxvt_display::atom (const char *name)
661{ 709{
662 return XInternAtom (dpy, name, False); 710 return XInternAtom (dpy, name, False);
663} 711}
664 712
713Pixmap
714rxvt_display::get_pixmap_property (Atom property)
715{
716 Pixmap pixmap = None;
717
718 int aformat;
719 unsigned long nitems, bytes_after;
720 Atom atype;
721 unsigned char *prop;
722 int result = XGetWindowProperty (dpy, root, property,
723 0L, 1L, False, XA_PIXMAP, &atype, &aformat,
724 &nitems, &bytes_after, &prop);
725 if (result == Success)
726 {
727 if (atype == XA_PIXMAP)
728 pixmap = *(Pixmap *)prop;
729 XFree (prop);
730 }
731
732 return pixmap;
733}
734
665///////////////////////////////////////////////////////////////////////////// 735/////////////////////////////////////////////////////////////////////////////
666 736
667template class refcache<rxvt_display>; 737template class refcache<rxvt_display>;
668refcache<rxvt_display> displays; 738refcache<rxvt_display> displays;
669 739
678 748
679bool 749bool
680rxvt_color::alloc (rxvt_screen *screen, const rgba &color) 750rxvt_color::alloc (rxvt_screen *screen, const rgba &color)
681{ 751{
682 //TODO: only supports 24 bit 752 //TODO: only supports 24 bit
683 int alpha = color.a >= 0xff00 ? 0xffff : color.a; 753 unsigned int alpha = color.a >= 0xff00 ? 0xffff : color.a;
684 754
685#if XFT 755#if XFT
686 XRenderPictFormat *format; 756 XRenderPictFormat *format;
687 757
688 // FUCKING Xft gets it wrong, of course, so work around it. 758 // FUCKING Xft gets it wrong, of course, so work around it.
695 c.color.red = color.r; 765 c.color.red = color.r;
696 c.color.green = color.g; 766 c.color.green = color.g;
697 c.color.blue = color.b; 767 c.color.blue = color.b;
698 c.color.alpha = alpha; 768 c.color.alpha = alpha;
699 769
770 // Xft wants premultiplied alpha, but abuses the alpha channel
771 // as blend factor, and doesn't allow us to set the alpha channel
772 c.color.red = c.color.red * alpha / 0xffff;
773 c.color.green = c.color.green * alpha / 0xffff;
774 c.color.blue = c.color.blue * alpha / 0xffff;
775
700 c.pixel = insert_component (color.r, format->direct.redMask , format->direct.red ) 776 c.pixel = insert_component (c.color.red , format->direct.redMask , format->direct.red )
701 | insert_component (color.g, format->direct.greenMask, format->direct.green) 777 | insert_component (c.color.green, format->direct.greenMask, format->direct.green)
702 | insert_component (color.b, format->direct.blueMask , format->direct.blue ) 778 | insert_component (c.color.blue , format->direct.blueMask , format->direct.blue )
703 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha); 779 | insert_component (alpha , format->direct.alphaMask, format->direct.alpha);
704 780
705 return true; 781 return true;
706 } 782 }
707 else 783 else
708 { 784 {
711 d.red = color.r; 787 d.red = color.r;
712 d.green = color.g; 788 d.green = color.g;
713 d.blue = color.b; 789 d.blue = color.b;
714 d.alpha = alpha; 790 d.alpha = alpha;
715 791
716 return XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c); 792 if (XftColorAllocValue (screen->dpy, screen->visual, screen->cmap, &d, &c))
793 return true;
717 } 794 }
718#else 795#else
719 c.red = color.r; 796 c.red = color.r;
720 c.green = color.g; 797 c.green = color.g;
721 c.blue = color.b; 798 c.blue = color.b;
722 799
723 if (screen->visual->c_class == TrueColor) 800 if (screen->visual->c_class == TrueColor)
724 { 801 {
725 c.pixel = (color.r >> (16 - rxvt_popcount (screen->visual->red_mask )) << rxvt_ctz (screen->visual->red_mask )) 802 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)) 803 | (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 )); 804 | (color.b >> (16 - ecb_popcount32 (screen->visual->blue_mask )) << ecb_ctz32 (screen->visual->blue_mask ));
728 805
729 return true; 806 return true;
730 } 807 }
731 else if (XAllocColor (screen->dpy, screen->cmap, &c)) 808 else if (XAllocColor (screen->dpy, screen->cmap, &c))
732 return true; 809 return true;
733 else 810#endif
811
734 c.pixel = (color.r + color.g + color.b) > 128*3 812 c.pixel = (color.r + color.g + color.b) > 128*3
735 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy)) 813 ? WhitePixelOfScreen (DefaultScreenOfDisplay (screen->dpy))
736 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy)); 814 : BlackPixelOfScreen (DefaultScreenOfDisplay (screen->dpy));
737#endif
738 815
739 return false; 816 return false;
740} 817}
741 818
742bool 819bool
798 875
799 // many kilobytes transfer per colour, but pseudocolor isn't worth 876 // many kilobytes transfer per colour, but pseudocolor isn't worth
800 // many extra optimisations. 877 // many extra optimisations.
801 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size); 878 XQueryColors (screen->dpy, screen->cmap, colors, cmap_size);
802 879
880 while (cmap_size)
881 {
803 int diff = 0x7fffffffUL; 882 int diff = 0x7fffffffUL;
804 XColor *best = colors; 883 XColor *best = colors;
805 884
806 for (int i = 0; i < cmap_size; i++) 885 for (int i = 0; i < cmap_size; i++)
807 {
808 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
809 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
810 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
811
812 if (d < diff)
813 { 886 {
887 int d = (squared_diff<int> (color.r >> 2, colors [i].red >> 2))
888 + (squared_diff<int> (color.g >> 2, colors [i].green >> 2))
889 + (squared_diff<int> (color.b >> 2, colors [i].blue >> 2));
890
891 if (d < diff)
892 {
814 diff = d; 893 diff = d;
815 best = colors + i; 894 best = colors + i;
895 }
816 } 896 }
817 }
818 897
819 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d)\n", 898 //rxvt_warn ("could not allocate %04x %04x %04x, getting %04x %04x %04x instead (%d,%d)\n",
820 // color.r, color.g, color.b, best->red, best->green, best->blue, diff); 899 // color.r, color.g, color.b, best->red, best->green, best->blue, diff, best - colors);
821 900
822 got = alloc (screen, rgba (best->red, best->green, best->blue)); 901 got = alloc (screen, rgba (best->red, best->green, best->blue));
902
903 if (got)
904 break;
905
906 *best = colors [--cmap_size];
907 }
823 908
824 delete [] colors; 909 delete [] colors;
825 } 910 }
826#endif 911#endif
827 912
828 return got; 913 return got;
829} 914}
830 915
831void 916void
832rxvt_color::get (rgba &color) 917rxvt_color::get (rgba &color) const
833{ 918{
834#if XFT 919#if XFT
835 color.r = c.color.red; 920 color.r = c.color.red;
836 color.g = c.color.green; 921 color.g = c.color.green;
837 color.b = c.color.blue; 922 color.b = c.color.blue;
843 color.a = rgba::MAX_CC; 928 color.a = rgba::MAX_CC;
844#endif 929#endif
845} 930}
846 931
847void 932void
848rxvt_color::get (XColor &color) 933rxvt_color::get (XColor &color) const
849{ 934{
850 rgba c; 935 rgba c;
851 get (c); 936 get (c);
852 937
853 color.red = c.r; 938 color.red = c.r;
884 lerp (c.a, to.a, percent) 969 lerp (c.a, to.a, percent)
885 ) 970 )
886 ); 971 );
887} 972}
888 973
974rxvt_selection::rxvt_selection (rxvt_display *disp, int selnum, Time tm, Window win, Atom prop, rxvt_term *term)
975: display (disp), request_time (tm), request_win (win), request_prop (prop), term (term)
976{
977 assert (selnum >= Sel_Primary && selnum <= Sel_Clipboard);
978
979 timer_ev.set<rxvt_selection, &rxvt_selection::timer_cb> (this);
980 timer_ev.repeat = 10.;
981 x_ev.set<rxvt_selection, &rxvt_selection::x_cb> (this);
982
983 incr_buf = 0;
984 incr_buf_size = incr_buf_fill = 0;
985 selection_wait = Sel_normal;
986 selection_type = selnum;
987 cb_sv = 0;
988}
989
990void
991rxvt_selection::stop ()
992{
993 free (incr_buf);
994 incr_buf = 0;
995 timer_ev.stop ();
996 x_ev.stop (display);
997}
998
999rxvt_selection::~rxvt_selection ()
1000{
1001 stop ();
1002}
1003
1004void
1005rxvt_selection::run ()
1006{
1007 int selnum = selection_type;
1008
1009#if ENABLE_FRILLS
1010 if (selnum == Sel_Primary && display->selection_owner)
1011 {
1012 /* internal selection */
1013 char *str = rxvt_wcstombs (display->selection_owner->selection.text, display->selection_owner->selection.len);
1014 finish (str, strlen (str));
1015 free (str);
1016 return;
1017 }
1018#endif
1019
1020#if X_HAVE_UTF8_STRING
1021 selection_type = Sel_UTF8String;
1022 if (request (display->xa[XA_UTF8_STRING], selnum))
1023 return;
1024#else
1025 selection_type = Sel_CompoundText;
1026 if (request (display->xa[XA_COMPOUND_TEXT], selnum))
1027 return;
1028#endif
1029
1030 // fallback to CUT_BUFFER0 if the requested property has no owner
1031 handle_selection (display->root, XA_CUT_BUFFER0, false);
1032}
1033
1034void
1035rxvt_selection::finish (char *data, unsigned int len)
1036{
1037 if (!cb_sv)
1038 {
1039 if (data)
1040 term->paste (data, len);
1041
1042 term->selection_req = 0;
1043 delete this;
1044 }
1045#if ENABLE_PERL
1046 else
1047 {
1048 stop (); // we do not really trust perl callbacks
1049 rxvt_perl.selection_finish (this, data, len);
1050 }
1051#endif
1052}
1053
1054bool
1055rxvt_selection::request (Atom target, int selnum)
1056{
1057 Atom sel;
1058
1059 selection_type |= selnum;
1060
1061 if (selnum == Sel_Primary)
1062 sel = XA_PRIMARY;
1063 else if (selnum == Sel_Secondary)
1064 sel = XA_SECONDARY;
1065 else
1066 sel = display->xa[XA_CLIPBOARD];
1067
1068 if (XGetSelectionOwner (display->dpy, sel) != None)
1069 {
1070 XConvertSelection (display->dpy, sel, target, request_prop,
1071 request_win, request_time);
1072 x_ev.start (display, request_win);
1073 timer_ev.again ();
1074 return true;
1075 }
1076
1077 return false;
1078}
1079
1080void
1081rxvt_selection::handle_selection (Window win, Atom prop, bool delete_prop)
1082{
1083 Display *dpy = display->dpy;
1084 char *data = 0;
1085 unsigned int data_len = 0;
1086 unsigned long bytes_after;
1087 XTextProperty ct;
1088
1089 // check for failed XConvertSelection
1090 if (prop == None)
1091 {
1092 bool error = true;
1093 int selnum = selection_type & Sel_whereMask;
1094
1095 if (selection_type & Sel_CompoundText)
1096 {
1097 selection_type = 0;
1098 error = !request (XA_STRING, selnum);
1099 }
1100
1101 if (selection_type & Sel_UTF8String)
1102 {
1103 selection_type = Sel_CompoundText;
1104 error = !request (display->xa[XA_COMPOUND_TEXT], selnum);
1105 }
1106
1107 if (error)
1108 {
1109 ct.value = 0;
1110 goto bailout;
1111 }
1112
1113 return;
1114 }
1115
1116 // length == (2^31 - 1) / 4, as gdk
1117 if (XGetWindowProperty (dpy, win, prop,
1118 0, 0x1fffffff,
1119 delete_prop, AnyPropertyType,
1120 &ct.encoding, &ct.format,
1121 &ct.nitems, &bytes_after,
1122 &ct.value) != Success)
1123 {
1124 ct.value = 0;
1125 goto bailout;
1126 }
1127
1128 if (ct.encoding == None)
1129 goto bailout;
1130
1131 if (ct.value == 0)
1132 goto bailout;
1133
1134 if (ct.encoding == display->xa[XA_INCR])
1135 {
1136 // INCR selection, start handshake
1137 if (!delete_prop)
1138 XDeleteProperty (dpy, win, prop);
1139
1140 selection_wait = Sel_incr;
1141 timer_ev.again ();
1142
1143 goto bailout;
1144 }
1145
1146 if (ct.nitems == 0)
1147 {
1148 if (selection_wait == Sel_incr)
1149 {
1150 XFree (ct.value);
1151
1152 // finally complete, now paste the whole thing
1153 selection_wait = Sel_normal;
1154 ct.value = (unsigned char *)incr_buf;
1155 ct.nitems = incr_buf_fill;
1156 incr_buf = 0;
1157 timer_ev.stop ();
1158 }
1159 else
1160 {
1161 // avoid recursion
1162 if (win != display->root || prop != XA_CUT_BUFFER0)
1163 {
1164 XFree (ct.value);
1165
1166 // fallback to CUT_BUFFER0 if the requested property
1167 // has an owner but is empty
1168 handle_selection (display->root, XA_CUT_BUFFER0, False);
1169 return;
1170 }
1171
1172 goto bailout;
1173 }
1174 }
1175 else if (selection_wait == Sel_incr)
1176 {
1177 timer_ev.again ();
1178
1179 while (incr_buf_fill + ct.nitems > incr_buf_size)
1180 {
1181 incr_buf_size = incr_buf_size ? incr_buf_size * 2 : 128*1024;
1182 incr_buf = (char *)rxvt_realloc (incr_buf, incr_buf_size);
1183 }
1184
1185 memcpy (incr_buf + incr_buf_fill, ct.value, ct.nitems);
1186 incr_buf_fill += ct.nitems;
1187
1188 goto bailout;
1189 }
1190
1191 char **cl;
1192 int cr;
1193
1194 // we honour the first item only
1195
1196#if !ENABLE_MINIMAL
1197 // xlib is horribly broken with respect to UTF8_STRING, and nobody cares to fix it
1198 // so recode it manually
1199 if (ct.encoding == display->xa[XA_UTF8_STRING])
1200 {
1201 wchar_t *w = rxvt_utf8towcs ((const char *)ct.value, ct.nitems);
1202 data = rxvt_wcstombs (w);
1203 free (w);
1204 }
1205 else
1206#endif
1207 if (XmbTextPropertyToTextList (dpy, &ct, &cl, &cr) >= 0
1208 && cl)
1209 {
1210 data = strdup (cl[0]);
1211 XFreeStringList (cl);
1212 }
1213 else
1214 {
1215 // paste raw
1216 data = strdup ((const char *)ct.value);
1217 }
1218
1219 data_len = strlen (data);
1220
1221bailout:
1222 XFree (ct.value);
1223
1224 if (selection_wait == Sel_normal)
1225 {
1226 finish (data, data_len);
1227 free (data);
1228 }
1229}
1230
1231void
1232rxvt_selection::timer_cb (ev::timer &w, int revents)
1233{
1234 if (selection_wait == Sel_incr)
1235 rxvt_warn ("data loss: timeout on INCR selection paste, ignoring.\n");
1236
1237 finish ();
1238}
1239
1240void
1241rxvt_selection::x_cb (XEvent &xev)
1242{
1243 switch (xev.type)
1244 {
1245 case PropertyNotify:
1246 if (selection_wait == Sel_incr
1247 && xev.xproperty.atom == request_prop
1248 && xev.xproperty.state == PropertyNewValue)
1249 handle_selection (xev.xproperty.window, xev.xproperty.atom, true);
1250 break;
1251
1252 case SelectionNotify:
1253 if (selection_wait == Sel_normal
1254 && xev.xselection.time == request_time)
1255 {
1256 timer_ev.stop ();
1257 handle_selection (xev.xselection.requestor, xev.xselection.property, true);
1258 }
1259 break;
1260 }
1261}

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