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/*--------------------------------*-C-*---------------------------------* |
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* File: main.C |
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*----------------------------------------------------------------------* |
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* |
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* All portions of code are copyright by their respective author/s. |
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* Copyright (c) 1992 John Bovey, University of Kent at Canterbury <jdb@ukc.ac.uk> |
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* - original version |
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* Copyright (c) 1994 Robert Nation <nation@rocket.sanders.lockheed.com> |
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* - extensive modifications |
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* Copyright (c) 1995 Garrett D'Amore <garrett@netcom.com> |
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* Copyright (c) 1997 mj olesen <olesen@me.QueensU.CA> |
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* - extensive modifications |
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* Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> |
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* Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com> |
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* - extensive modifications |
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* Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*---------------------------------------------------------------------*/ |
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|
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#include "../config.h" /* NECESSARY */ |
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#include "rxvt.h" /* NECESSARY */ |
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#include "keyboard.h" |
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#include "rxvtperl.h" |
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|
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#include <limits> |
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|
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#include <csignal> |
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#include <cstring> |
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|
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#ifdef TTY_GID_SUPPORT |
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# include <grp.h> |
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#endif |
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|
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#ifdef HAVE_TERMIOS_H |
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# include <termios.h> |
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#endif |
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|
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#if (defined(HAVE_SETEUID) || defined(HAVE_SETREUID)) && !defined(__CYGWIN32__) |
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static uid_t saved_euid; |
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static gid_t saved_egid; |
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#endif |
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|
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bool |
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rxvt_tainted () |
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{ |
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#if (defined(HAVE_SETEUID) || defined(HAVE_SETREUID)) && !defined(__CYGWIN32__) |
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return getuid () != saved_euid || getgid () != saved_egid; |
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#else |
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return false; |
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#endif |
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} |
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|
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vector<rxvt_term *> rxvt_term::termlist; |
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|
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static char curlocale[128], savelocale[128]; |
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|
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bool |
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rxvt_set_locale (const char *locale) |
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{ |
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if (!locale || !strncmp (locale, curlocale, 128)) |
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return false; |
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|
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strncpy (curlocale, locale, 128); |
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setlocale (LC_CTYPE, curlocale); |
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return true; |
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} |
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|
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void |
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rxvt_push_locale (const char *locale) |
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{ |
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strcpy (savelocale, curlocale); |
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rxvt_set_locale (locale); |
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} |
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|
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void |
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rxvt_pop_locale () |
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{ |
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rxvt_set_locale (savelocale); |
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} |
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|
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#if ENABLE_COMBINING |
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class rxvt_composite_vec rxvt_composite; |
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|
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text_t rxvt_composite_vec::compose (unicode_t c1, unicode_t c2) |
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{ |
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compose_char *cc; |
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|
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// break compose chains, as stupid readline really likes to duplicate |
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// composing characters for some reason near the end of a line. |
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cc = (*this)[c1]; |
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while (cc) |
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{ |
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if (cc->c2 == c2) return c1; |
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cc = (*this)[cc->c1]; |
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} |
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|
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// check to see wether this combination already exists otherwise |
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for (cc = v.end (); cc-- > v.begin (); ) |
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{ |
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if (cc->c1 == c1 && cc->c2 == c2) |
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return COMPOSE_LO + (cc - v.begin ()); |
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} |
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|
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// allocate a new combination |
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if (v.size () == COMPOSE_HI - COMPOSE_LO + 1) |
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{ |
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static int seen; |
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|
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if (!seen++) |
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fprintf (stderr, "too many unrepresentable composite characters, try --enable-unicode3\n"); |
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|
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return REPLACEMENT_CHAR; |
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} |
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|
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v.push_back (compose_char (c1, c2)); |
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|
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return v.size () - 1 + COMPOSE_LO; |
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} |
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|
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int rxvt_composite_vec::expand (unicode_t c, wchar_t *r) |
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{ |
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compose_char *cc = (*this)[c]; |
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|
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if (!cc) |
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{ |
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if (r) *r = c; |
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return 1; |
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} |
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|
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int len = expand (cc->c1, r); |
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|
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if (r) r += len; |
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|
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if (cc->c2 != NOCHAR) |
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{ |
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len++; |
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if (r) *r++ = cc->c2; |
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} |
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|
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return len; |
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|
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} |
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#endif |
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|
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rxvt_term::rxvt_term () |
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: |
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#if TRANSPARENT |
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rootwin_ev (this, &rxvt_term::rootwin_cb), |
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#endif |
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#ifdef HAVE_SCROLLBARS |
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scrollbar_ev (this, &rxvt_term::x_cb), |
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#endif |
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#ifdef MENUBAR |
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menubar_ev (this, &rxvt_term::x_cb), |
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#endif |
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#ifdef CURSOR_BLINK |
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cursor_blink_ev (this, &rxvt_term::cursor_blink_cb), |
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#endif |
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#ifdef TEXT_BLINK |
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text_blink_ev (this, &rxvt_term::text_blink_cb), |
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#endif |
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#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING |
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cont_scroll_ev (this, &rxvt_term::cont_scroll_cb), |
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#endif |
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#ifdef SELECTION_SCROLLING |
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sel_scroll_ev (this, &rxvt_term::sel_scroll_cb), |
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#endif |
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#if defined(MOUSE_WHEEL) && defined(MOUSE_SLIP_WHEELING) |
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slip_wheel_ev (this, &rxvt_term::slip_wheel_cb), |
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#endif |
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#ifdef POINTER_BLANK |
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pointer_ev (this, &rxvt_term::pointer_cb), |
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#endif |
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#ifdef USE_XIM |
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im_ev (this, &rxvt_term::im_cb), |
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#endif |
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termwin_ev (this, &rxvt_term::x_cb), |
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vt_ev (this, &rxvt_term::x_cb), |
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check_ev (this, &rxvt_term::check_cb), |
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flush_ev (this, &rxvt_term::flush_cb), |
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destroy_ev (this, &rxvt_term::destroy_cb), |
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pty_ev (this, &rxvt_term::pty_cb), |
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incr_ev (this, &rxvt_term::incr_cb) |
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{ |
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cmdbuf_ptr = cmdbuf_endp = cmdbuf_base; |
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|
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termlist.push_back (this); |
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|
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#ifdef KEYSYM_RESOURCE |
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keyboard = new keyboard_manager; |
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|
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if (!keyboard) |
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rxvt_fatal ("out of memory, aborting.\n"); |
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#endif |
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} |
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|
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// clean up the most important stuff, do *not* call x or free mem etc. |
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// for use before an emergency exit |
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void rxvt_term::emergency_cleanup () |
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{ |
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if (cmd_pid) |
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kill (-cmd_pid, SIGHUP); |
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|
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#ifdef UTMP_SUPPORT |
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privileged_utmp (RESTORE); |
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#endif |
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|
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pty.put (); |
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} |
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|
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rxvt_term::~rxvt_term () |
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{ |
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HOOK_INVOKE ((this, HOOK_DESTROY, DT_END)); |
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|
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termlist.erase (find (termlist.begin (), termlist.end(), this)); |
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|
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emergency_cleanup (); |
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|
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#if ENABLE_STYLES |
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for (int i = RS_styleCount; --i; ) |
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if (fontset[i] != fontset[0]) |
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delete fontset[i]; |
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#endif |
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delete fontset[0]; |
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|
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if (display) |
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{ |
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dDisp; |
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|
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selection_clear (); |
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|
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#ifdef USE_XIM |
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im_destroy (); |
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#endif |
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#ifdef MENUBAR |
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if (menubarGC) XFreeGC (disp, menubarGC); |
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#endif |
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#ifdef XTERM_SCROLLBAR |
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if (xscrollbarGC) XFreeGC (disp, xscrollbarGC); |
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if (ShadowGC) XFreeGC (disp, ShadowGC); |
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#endif |
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#ifdef PLAIN_SCROLLBAR |
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if (pscrollbarGC) XFreeGC (disp, pscrollbarGC); |
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#endif |
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#ifdef NEXT_SCROLLBAR |
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if (blackGC) XFreeGC (disp, blackGC); |
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if (whiteGC) XFreeGC (disp, whiteGC); |
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if (grayGC) XFreeGC (disp, grayGC); |
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if (darkGC) XFreeGC (disp, darkGC); |
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if (stippleGC) XFreeGC (disp, stippleGC); |
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if (dimple) XFreePixmap (disp, dimple); |
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if (upArrow) XFreePixmap (disp, upArrow); |
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if (downArrow) XFreePixmap (disp, downArrow); |
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if (upArrowHi) XFreePixmap (disp, upArrowHi); |
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if (downArrowHi) XFreePixmap (disp, downArrowHi); |
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#endif |
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#if defined(MENUBAR) || defined(RXVT_SCROLLBAR) |
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if (topShadowGC) XFreeGC (disp, topShadowGC); |
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if (botShadowGC) XFreeGC (disp, botShadowGC); |
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if (scrollbarGC) XFreeGC (disp, scrollbarGC); |
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#endif |
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if (gc) XFreeGC (disp, gc); |
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|
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#if defined(MENUBAR) && (MENUBAR_MAX > 1) |
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delete menuBar.drawable; |
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//if (menuBar.win) |
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// XDestroyWindow (disp, menuBar.win); |
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#endif |
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delete drawable; |
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// destroy all windows |
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if (parent[0]) |
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XDestroyWindow (disp, parent[0]); |
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} |
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|
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// TODO: free pixcolours, colours should become part of rxvt_display |
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delete pix_colors_focused; |
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#if OFF_FOCUS_FADING |
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delete pix_colors_unfocused; |
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#endif |
293 |
|
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displays.put (display); |
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|
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scr_release (); |
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|
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/* clear all resources */ |
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for (int i = 0; i < allocated.size (); i++) |
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free (allocated [i]); |
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|
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free (selection.text); |
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// TODO: manage env vars in child only(!) |
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free (env_windowid); |
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free (env_display); |
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free (env_term); |
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free (env_colorfgbg); |
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free (locale); |
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free (v_buffer); |
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free (incr_buf); |
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|
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delete envv; |
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delete argv; |
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|
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#ifdef KEYSYM_RESOURCE |
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delete keyboard; |
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#endif |
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} |
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|
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void |
321 |
rxvt_term::child_exit () |
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{ |
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cmd_pid = 0; |
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|
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if (!OPTION (Opt_hold)) |
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destroy (); |
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} |
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|
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void |
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rxvt_term::destroy () |
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{ |
332 |
if (destroy_ev.active) |
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return; |
334 |
|
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#if ENABLE_OVERLAY |
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scr_overlay_off (); |
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#endif |
338 |
|
339 |
if (display) |
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{ |
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#if USE_XIM |
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im_ev.stop (display); |
343 |
#endif |
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#if HAVE_SCROLLBARS |
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scrollbar_ev.stop (display); |
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#endif |
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#if MENUBAR |
348 |
menubar_ev.stop (display); |
349 |
#endif |
350 |
#if TRANSPARENT |
351 |
rootwin_ev.stop (display); |
352 |
#endif |
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incr_ev.stop (); |
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termwin_ev.stop (display); |
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vt_ev.stop (display); |
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} |
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|
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check_ev.stop (); |
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pty_ev.stop (); |
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#ifdef CURSOR_BLINK |
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cursor_blink_ev.stop (); |
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#endif |
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#ifdef TEXT_BLINK |
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text_blink_ev.stop (); |
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#endif |
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#ifndef NO_SCROLLBAR_BUTTON_CONTINUAL_SCROLLING |
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cont_scroll_ev.stop (); |
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#endif |
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#ifdef SELECTION_SCROLLING |
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sel_scroll_ev.stop (); |
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#endif |
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#ifdef POINTER_BLANK |
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pointer_ev.stop (); |
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#endif |
375 |
|
376 |
destroy_ev.start (0); |
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} |
378 |
|
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void |
380 |
rxvt_term::destroy_cb (time_watcher &w) |
381 |
{ |
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SET_R (this); |
383 |
|
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delete this; |
385 |
} |
386 |
|
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/*----------------------------------------------------------------------*/ |
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/* |
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* Exit gracefully, clearing the utmp entry and restoring tty attributes |
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* TODO: if debugging, this should free up any known resources if we can |
391 |
*/ |
392 |
static XErrorHandler old_xerror_handler; |
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|
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static void |
395 |
rxvt_emergency_cleanup () |
396 |
{ |
397 |
for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++) |
398 |
(*t)->emergency_cleanup (); |
399 |
} |
400 |
|
401 |
#if ENABLE_FRILLS |
402 |
static void |
403 |
print_x_error (Display *dpy, XErrorEvent *event) |
404 |
{ |
405 |
char buffer[BUFSIZ]; |
406 |
char mesg[BUFSIZ]; |
407 |
char number[32]; |
408 |
char *mtype = "XlibMessage"; |
409 |
XGetErrorText(dpy, event->error_code, buffer, BUFSIZ); |
410 |
XGetErrorDatabaseText(dpy, mtype, "XError", "X Error", mesg, BUFSIZ); |
411 |
rxvt_warn ("An X Error occured, trying to continue after report.\n"); |
412 |
rxvt_warn ("%s: %s\n", mesg, buffer); |
413 |
XGetErrorDatabaseText(dpy, mtype, "MajorCode", "Request Major code %d", mesg, BUFSIZ); |
414 |
rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->request_code); |
415 |
sprintf(number, "%d", event->request_code); |
416 |
XGetErrorDatabaseText(dpy, "XRequest", number, "", buffer, BUFSIZ); |
417 |
rxvt_warn ("(which is %s)\n", buffer); |
418 |
if (event->request_code >= 128) { |
419 |
XGetErrorDatabaseText(dpy, mtype, "MinorCode", "Request Minor code %d", |
420 |
mesg, BUFSIZ); |
421 |
rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->minor_code); |
422 |
} |
423 |
if ((event->error_code == BadWindow) || |
424 |
(event->error_code == BadPixmap) || |
425 |
(event->error_code == BadCursor) || |
426 |
(event->error_code == BadFont) || |
427 |
(event->error_code == BadDrawable) || |
428 |
(event->error_code == BadColor) || |
429 |
(event->error_code == BadGC) || |
430 |
(event->error_code == BadIDChoice) || |
431 |
(event->error_code == BadValue) || |
432 |
(event->error_code == BadAtom)) { |
433 |
if (event->error_code == BadValue) |
434 |
XGetErrorDatabaseText(dpy, mtype, "Value", "Value 0x%x", |
435 |
mesg, BUFSIZ); |
436 |
else if (event->error_code == BadAtom) |
437 |
XGetErrorDatabaseText(dpy, mtype, "AtomID", "AtomID 0x%x", |
438 |
mesg, BUFSIZ); |
439 |
else |
440 |
XGetErrorDatabaseText(dpy, mtype, "ResourceID", "ResourceID 0x%x", |
441 |
mesg, BUFSIZ); |
442 |
rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->resourceid); |
443 |
} |
444 |
XGetErrorDatabaseText(dpy, mtype, "ErrorSerial", "Error Serial #%d", |
445 |
mesg, BUFSIZ); |
446 |
rxvt_warn (strncat (mesg, "\n", BUFSIZ), event->serial); |
447 |
} |
448 |
#endif |
449 |
|
450 |
int |
451 |
rxvt_xerror_handler (Display *display, XErrorEvent *event) |
452 |
{ |
453 |
if (GET_R->allowedxerror == -1) |
454 |
GET_R->allowedxerror = event->error_code; |
455 |
else |
456 |
{ |
457 |
// GET_R is most likely not the terminal which caused the error, |
458 |
// so just output the error and continue |
459 |
#if ENABLE_FRILLS |
460 |
print_x_error (display, event); |
461 |
#else |
462 |
old_xerror_handler (display, event); |
463 |
#endif |
464 |
} |
465 |
|
466 |
return 0; |
467 |
} |
468 |
|
469 |
int |
470 |
rxvt_xioerror_handler (Display *display) |
471 |
{ |
472 |
rxvt_warn ("X connection to '%s' broken, unable to recover, exiting.\n", |
473 |
DisplayString (display)); |
474 |
rxvt_emergency_cleanup (); |
475 |
_exit (EXIT_FAILURE); |
476 |
} |
477 |
|
478 |
/*----------------------------------------------------------------------*/ |
479 |
bool |
480 |
rxvt_term::init (int argc, const char *const *argv) |
481 |
{ |
482 |
SET_R (this); |
483 |
|
484 |
const char **cmd_argv; |
485 |
|
486 |
{ |
487 |
TEMP_ENV; // few things in X do not call setlocale :( |
488 |
|
489 |
set_locale (""); |
490 |
|
491 |
if (!init_vars ()) |
492 |
return false; |
493 |
|
494 |
init_secondary (); |
495 |
|
496 |
cmd_argv = init_resources (argc, argv); |
497 |
|
498 |
#ifdef KEYSYM_RESOURCE |
499 |
keyboard->register_done (); |
500 |
#endif |
501 |
|
502 |
#if MENUBAR_MAX |
503 |
menubar_read (rs[Rs_menu]); |
504 |
#endif |
505 |
#ifdef HAVE_SCROLLBARS |
506 |
if (OPTION (Opt_scrollBar)) |
507 |
scrollBar.setIdle (); /* set existence for size calculations */ |
508 |
#endif |
509 |
} |
510 |
|
511 |
#if ENABLE_PERL |
512 |
if (!rs[Rs_perl_ext_1]) |
513 |
rs[Rs_perl_ext_1] = "default"; |
514 |
|
515 |
if ((rs[Rs_perl_ext_1] && *rs[Rs_perl_ext_1]) |
516 |
|| (rs[Rs_perl_ext_2] && *rs[Rs_perl_ext_2]) |
517 |
|| (rs[Rs_perl_eval] && *rs[Rs_perl_eval])) |
518 |
{ |
519 |
#if (defined(HAVE_SETEUID) || defined(HAVE_SETREUID)) && !defined(__CYGWIN32__) |
520 |
// ignore some perl-related arguments if some bozo installed us set[ug]id |
521 |
if (rxvt_tainted ()) |
522 |
{ |
523 |
if ((rs[Rs_perl_lib] && *rs[Rs_perl_lib]) |
524 |
|| (rs[Rs_perl_eval] && *rs[Rs_perl_eval])) |
525 |
{ |
526 |
rxvt_warn ("running with elevated privileges: ignoring perl-lib and perl-eval.\n"); |
527 |
rs[Rs_perl_lib] = 0; |
528 |
rs[Rs_perl_eval] = 0; |
529 |
} |
530 |
} |
531 |
#endif |
532 |
rxvt_perl.init (); |
533 |
setlocale (LC_CTYPE, curlocale); // perl destroys this info |
534 |
HOOK_INVOKE ((this, HOOK_INIT, DT_END)); |
535 |
} |
536 |
#endif |
537 |
|
538 |
{ |
539 |
TEMP_ENV; |
540 |
|
541 |
create_windows (argc, argv); |
542 |
|
543 |
dDisp; |
544 |
|
545 |
init_xlocale (); |
546 |
|
547 |
scr_reset (); // initialize screen |
548 |
|
549 |
#if 0 |
550 |
XSynchronize (disp, True); |
551 |
#endif |
552 |
|
553 |
#ifdef HAVE_SCROLLBARS |
554 |
if (OPTION (Opt_scrollBar)) |
555 |
resize_scrollbar (); /* create and map scrollbar */ |
556 |
#endif |
557 |
#if (MENUBAR_MAX) |
558 |
if (menubar_visible ()) |
559 |
XMapWindow (disp, menuBar.win); |
560 |
#endif |
561 |
#ifdef TRANSPARENT |
562 |
if (OPTION (Opt_transparent)) |
563 |
{ |
564 |
XSelectInput (disp, display->root, PropertyChangeMask); |
565 |
check_our_parents (); |
566 |
rootwin_ev.start (display, display->root); |
567 |
} |
568 |
#endif |
569 |
|
570 |
XMapWindow (disp, vt); |
571 |
XMapWindow (disp, parent[0]); |
572 |
|
573 |
set_colorfgbg (); |
574 |
|
575 |
init_command (cmd_argv); |
576 |
|
577 |
free (cmd_argv); |
578 |
|
579 |
if (pty.pty >= 0) |
580 |
pty_ev.start (pty.pty, EVENT_READ); |
581 |
|
582 |
check_ev.start (); |
583 |
|
584 |
HOOK_INVOKE ((this, HOOK_START, DT_END)); |
585 |
} |
586 |
|
587 |
return true; |
588 |
} |
589 |
|
590 |
static struct sig_handlers |
591 |
{ |
592 |
sig_watcher sw_chld, sw_term, sw_int; |
593 |
|
594 |
void sig_chld (sig_watcher &w) |
595 |
{ |
596 |
// we are being called for every SIGCHLD, find the corresponding term |
597 |
int pid; |
598 |
|
599 |
while ((pid = waitpid (-1, NULL, WNOHANG)) > 0) |
600 |
for (rxvt_term **t = rxvt_term::termlist.begin (); t < rxvt_term::termlist.end (); t++) |
601 |
if (pid == (*t)->cmd_pid) |
602 |
{ |
603 |
(*t)->child_exit (); |
604 |
break; |
605 |
} |
606 |
} |
607 |
|
608 |
/* |
609 |
* Catch a fatal signal and tidy up before quitting |
610 |
*/ |
611 |
void |
612 |
sig_term (sig_watcher &w) |
613 |
{ |
614 |
#ifdef DEBUG_CMD |
615 |
rxvt_warn ("caught signal %d, exiting.\n", w.signum); |
616 |
#endif |
617 |
rxvt_emergency_cleanup (); |
618 |
signal (w.signum, SIG_DFL); |
619 |
kill (getpid (), w.signum); |
620 |
} |
621 |
|
622 |
sig_handlers () |
623 |
: sw_chld (this, &sig_handlers::sig_chld), |
624 |
sw_term (this, &sig_handlers::sig_term), |
625 |
sw_int (this, &sig_handlers::sig_term) |
626 |
{ |
627 |
} |
628 |
} sig_handlers; |
629 |
|
630 |
void |
631 |
rxvt_init () |
632 |
{ |
633 |
/* |
634 |
* Save and then give up any super-user privileges |
635 |
* If we need privileges in any area then we must specifically request it. |
636 |
* We should only need to be root in these cases: |
637 |
* 1. write utmp entries on some systems |
638 |
* 2. chown tty on some systems |
639 |
*/ |
640 |
rxvt_privileges (SAVE); |
641 |
rxvt_privileges (IGNORE); |
642 |
|
643 |
signal (SIGHUP, SIG_IGN); |
644 |
signal (SIGPIPE, SIG_IGN); |
645 |
|
646 |
sig_handlers.sw_chld.start (SIGCHLD); |
647 |
sig_handlers.sw_term.start (SIGTERM); |
648 |
sig_handlers.sw_int.start (SIGINT); |
649 |
|
650 |
/* need to trap SIGURG for SVR4 (Unixware) rlogin */ |
651 |
/* signal (SIGURG, SIG_DFL); */ |
652 |
|
653 |
old_xerror_handler = XSetErrorHandler ((XErrorHandler) rxvt_xerror_handler); |
654 |
// TODO: handle this with exceptions and tolerate the memory loss |
655 |
XSetIOErrorHandler (rxvt_xioerror_handler); |
656 |
|
657 |
XrmInitialize (); |
658 |
} |
659 |
|
660 |
/* ------------------------------------------------------------------------- * |
661 |
* MEMORY ALLOCATION WRAPPERS * |
662 |
* ------------------------------------------------------------------------- */ |
663 |
void * |
664 |
rxvt_malloc (size_t size) |
665 |
{ |
666 |
void *p = malloc (size); |
667 |
|
668 |
if (!p) |
669 |
rxvt_fatal ("memory allocation failure. aborting.\n"); |
670 |
|
671 |
return p; |
672 |
} |
673 |
|
674 |
void * |
675 |
rxvt_calloc (size_t number, size_t size) |
676 |
{ |
677 |
void *p = calloc (number, size); |
678 |
|
679 |
if (!p) |
680 |
rxvt_fatal ("memory allocation failure. aborting.\n"); |
681 |
|
682 |
return p; |
683 |
} |
684 |
|
685 |
void * |
686 |
rxvt_realloc (void *ptr, size_t size) |
687 |
{ |
688 |
void *p = realloc (ptr, size); |
689 |
|
690 |
if (!p) |
691 |
rxvt_fatal ("memory allocation failure. aborting.\n"); |
692 |
|
693 |
return p; |
694 |
} |
695 |
|
696 |
/* ------------------------------------------------------------------------- * |
697 |
* PRIVILEGED OPERATIONS * |
698 |
* ------------------------------------------------------------------------- */ |
699 |
/* take care of suid/sgid super-user (root) privileges */ |
700 |
void |
701 |
rxvt_privileges (rxvt_privaction action) |
702 |
{ |
703 |
#if ! defined(__CYGWIN32__) |
704 |
# if !defined(HAVE_SETEUID) && defined(HAVE_SETREUID) |
705 |
/* setreuid () is the poor man's setuid (), seteuid () */ |
706 |
# define seteuid(a) setreuid(-1, (a)) |
707 |
# define setegid(a) setregid(-1, (a)) |
708 |
# define HAVE_SETEUID |
709 |
# endif |
710 |
# ifdef HAVE_SETEUID |
711 |
switch (action) |
712 |
{ |
713 |
case IGNORE: |
714 |
/* |
715 |
* change effective uid/gid - not real uid/gid - so we can switch |
716 |
* back to root later, as required |
717 |
*/ |
718 |
setegid (getgid ()); |
719 |
seteuid (getuid ()); |
720 |
break; |
721 |
case SAVE: |
722 |
saved_egid = getegid (); |
723 |
saved_euid = geteuid (); |
724 |
break; |
725 |
case RESTORE: |
726 |
setegid (saved_egid); |
727 |
seteuid (saved_euid); |
728 |
break; |
729 |
} |
730 |
# else |
731 |
switch (action) |
732 |
{ |
733 |
case IGNORE: |
734 |
setgid (getgid ()); |
735 |
setuid (getuid ()); |
736 |
/* FALLTHROUGH */ |
737 |
case SAVE: |
738 |
/* FALLTHROUGH */ |
739 |
case RESTORE: |
740 |
break; |
741 |
} |
742 |
# endif |
743 |
#endif |
744 |
} |
745 |
|
746 |
#ifdef UTMP_SUPPORT |
747 |
void |
748 |
rxvt_term::privileged_utmp (rxvt_privaction action) |
749 |
{ |
750 |
if (OPTION (Opt_utmpInhibit) |
751 |
|| !pty.name || !*pty.name) |
752 |
return; |
753 |
|
754 |
rxvt_privileges (RESTORE); |
755 |
|
756 |
if (action == SAVE) |
757 |
makeutent (pty.name, rs[Rs_display_name]); |
758 |
else |
759 |
cleanutent (); |
760 |
|
761 |
rxvt_privileges (IGNORE); |
762 |
} |
763 |
#endif |
764 |
|
765 |
/*----------------------------------------------------------------------*/ |
766 |
/* |
767 |
* window size/position calculcations for XSizeHint and other storage. |
768 |
* if width/height are non-zero then override calculated width/height |
769 |
*/ |
770 |
void |
771 |
rxvt_term::window_calc (unsigned int newwidth, unsigned int newheight) |
772 |
{ |
773 |
short recalc_x, recalc_y; |
774 |
int x, y, sb_w, mb_h, flags; |
775 |
unsigned int w, h; |
776 |
unsigned int max_width, max_height; |
777 |
dDisp; |
778 |
|
779 |
D_SIZE ((stderr, "< Cols/Rows: %3d x %3d ; Width/Height: %4d x %4d", |
780 |
ncol, nrow, szHint.width, szHint.height)); |
781 |
|
782 |
szHint.flags = PMinSize | PResizeInc | PBaseSize | PWinGravity; |
783 |
szHint.win_gravity = NorthWestGravity; |
784 |
/* szHint.min_aspect.x = szHint.min_aspect.y = 1; */ |
785 |
|
786 |
recalc_x = recalc_y = 0; |
787 |
flags = 0; |
788 |
|
789 |
if (!parsed_geometry) |
790 |
{ |
791 |
parsed_geometry = 1; |
792 |
|
793 |
if (rs[Rs_geometry]) |
794 |
flags = XParseGeometry (rs[Rs_geometry], &x, &y, &w, &h); |
795 |
|
796 |
if (flags & WidthValue) |
797 |
{ |
798 |
ncol = clamp (w, 0, std::numeric_limits<int16_t>::max ()); |
799 |
szHint.flags |= USSize; |
800 |
} |
801 |
|
802 |
if (flags & HeightValue) |
803 |
{ |
804 |
nrow = clamp (h, 0, std::numeric_limits<int16_t>::max ()); |
805 |
szHint.flags |= USSize; |
806 |
} |
807 |
|
808 |
if (flags & XValue) |
809 |
{ |
810 |
szHint.x = x; |
811 |
szHint.flags |= USPosition; |
812 |
|
813 |
if (flags & XNegative) |
814 |
{ |
815 |
recalc_x = 1; |
816 |
szHint.win_gravity = NorthEastGravity; |
817 |
} |
818 |
} |
819 |
|
820 |
if (flags & YValue) |
821 |
{ |
822 |
szHint.y = y; |
823 |
szHint.flags |= USPosition; |
824 |
|
825 |
if (flags & YNegative) |
826 |
{ |
827 |
recalc_y = 1; |
828 |
|
829 |
if (szHint.win_gravity == NorthEastGravity) |
830 |
szHint.win_gravity = SouthEastGravity; |
831 |
else |
832 |
szHint.win_gravity = SouthWestGravity; |
833 |
} |
834 |
} |
835 |
} |
836 |
|
837 |
/* TODO: BOUNDS */ |
838 |
width = ncol * fwidth; |
839 |
height = nrow * fheight; |
840 |
max_width = MAX_COLS * fwidth; |
841 |
max_height = MAX_ROWS * fheight; |
842 |
|
843 |
szHint.base_width = szHint.base_height = 2 * int_bwidth; |
844 |
|
845 |
sb_w = mb_h = 0; |
846 |
window_vt_x = window_vt_y = int_bwidth; |
847 |
|
848 |
if (scrollbar_visible ()) |
849 |
{ |
850 |
sb_w = scrollbar_TotalWidth (); |
851 |
szHint.base_width += sb_w; |
852 |
if (!OPTION (Opt_scrollBar_right)) |
853 |
window_vt_x += sb_w; |
854 |
} |
855 |
|
856 |
if (menubar_visible ()) |
857 |
{ |
858 |
mb_h = menuBar_TotalHeight (); |
859 |
szHint.base_height += mb_h; |
860 |
window_vt_y += mb_h; |
861 |
} |
862 |
|
863 |
szHint.width_inc = fwidth; |
864 |
szHint.height_inc = fheight; |
865 |
szHint.min_width = szHint.base_width + szHint.width_inc; |
866 |
szHint.min_height = szHint.base_height + szHint.height_inc; |
867 |
|
868 |
if (newwidth && newwidth - szHint.base_width < max_width) |
869 |
{ |
870 |
szHint.width = newwidth; |
871 |
width = newwidth - szHint.base_width; |
872 |
} |
873 |
else |
874 |
{ |
875 |
min_it (width, max_width); |
876 |
szHint.width = szHint.base_width + width; |
877 |
} |
878 |
|
879 |
if (newheight && newheight - szHint.base_height < max_height) |
880 |
{ |
881 |
szHint.height = newheight; |
882 |
height = newheight - szHint.base_height; |
883 |
} |
884 |
else |
885 |
{ |
886 |
min_it (height, max_height); |
887 |
szHint.height = szHint.base_height + height; |
888 |
} |
889 |
|
890 |
if (scrollbar_visible () && OPTION (Opt_scrollBar_right)) |
891 |
window_sb_x = szHint.width - sb_w; |
892 |
|
893 |
if (recalc_x) |
894 |
szHint.x += DisplayWidth (disp, display->screen) - szHint.width - 2 * ext_bwidth; |
895 |
if (recalc_y) |
896 |
szHint.y += DisplayHeight (disp, display->screen) - szHint.height - 2 * ext_bwidth; |
897 |
|
898 |
ncol = width / fwidth; |
899 |
nrow = height / fheight; |
900 |
D_SIZE ((stderr, "> Cols/Rows: %3d x %3d ; Width/Height: %4d x %4d", |
901 |
ncol, nrow, szHint.width, |
902 |
szHint.height)); |
903 |
return; |
904 |
} |
905 |
|
906 |
/*----------------------------------------------------------------------*/ |
907 |
/* |
908 |
* Tell the teletype handler what size the window is. |
909 |
* Called after a window size change. |
910 |
*/ |
911 |
void |
912 |
rxvt_term::tt_winch () |
913 |
{ |
914 |
if (pty.pty < 0) |
915 |
return; |
916 |
|
917 |
struct winsize ws; |
918 |
|
919 |
ws.ws_col = ncol; |
920 |
ws.ws_row = nrow; |
921 |
ws.ws_xpixel = width; |
922 |
ws.ws_ypixel = height; |
923 |
(void)ioctl (pty.pty, TIOCSWINSZ, &ws); |
924 |
|
925 |
#if 0 |
926 |
// TIOCSWINSZ⎈ is supposed to do this automatically and correctly |
927 |
if (cmd_pid) /* force through to the command */ |
928 |
kill (-cmd_pid, SIGWINCH); |
929 |
#endif |
930 |
} |
931 |
|
932 |
/*----------------------------------------------------------------------*/ |
933 |
/* set_fonts () - load and set the various fonts |
934 |
* |
935 |
* init = 1 - initialize |
936 |
* |
937 |
* fontname == FONT_UP - switch to bigger font |
938 |
* fontname == FONT_DN - switch to smaller font |
939 |
*/ |
940 |
bool |
941 |
rxvt_term::set_fonts () |
942 |
{ |
943 |
rxvt_fontset *fs = new rxvt_fontset (this); |
944 |
rxvt_fontprop prop; |
945 |
|
946 |
if (!fs |
947 |
|| !fs->populate (rs[Rs_font] ? rs[Rs_font] : "fixed") |
948 |
|| !fs->realize_font (1)) |
949 |
{ |
950 |
delete fs; |
951 |
return false; |
952 |
} |
953 |
|
954 |
#if ENABLE_STYLES |
955 |
for (int i = RS_styleCount; --i; ) |
956 |
if (fontset[i] != fontset[0]) |
957 |
delete fontset[i]; |
958 |
#endif |
959 |
|
960 |
delete fontset[0]; |
961 |
fontset[0] = fs; |
962 |
|
963 |
prop = (*fs)[1]->properties (); |
964 |
prop.height += lineSpace; |
965 |
fs->set_prop (prop); |
966 |
|
967 |
fwidth = prop.width; |
968 |
fheight = prop.height; |
969 |
fbase = prop.ascent; |
970 |
|
971 |
for (int style = 1; style < 4; style++) |
972 |
{ |
973 |
#if ENABLE_STYLES |
974 |
const char *res = rs[Rs_font + style]; |
975 |
|
976 |
if (res && !*res) |
977 |
fontset[style] = fontset[0]; |
978 |
else |
979 |
{ |
980 |
fontset[style] = fs = new rxvt_fontset (this); |
981 |
rxvt_fontprop prop2 = prop; |
982 |
|
983 |
if (res) |
984 |
prop2.weight = prop2.slant = rxvt_fontprop::unset; |
985 |
else |
986 |
{ |
987 |
res = fontset[0]->fontdesc; |
988 |
|
989 |
if (SET_STYLE (0, style) & RS_Bold) prop2.weight = rxvt_fontprop::bold; |
990 |
if (SET_STYLE (0, style) & RS_Italic) prop2.slant = rxvt_fontprop::italic; |
991 |
} |
992 |
|
993 |
fs->populate (res); |
994 |
fs->set_prop (prop2); |
995 |
} |
996 |
#else |
997 |
fontset[style] = fontset[0]; |
998 |
#endif |
999 |
} |
1000 |
|
1001 |
if (parent[0]) |
1002 |
{ |
1003 |
resize_all_windows (0, 0, 0); |
1004 |
scr_remap_chars (); |
1005 |
scr_touch (true); |
1006 |
} |
1007 |
|
1008 |
return true; |
1009 |
} |
1010 |
|
1011 |
void rxvt_term::set_string_property (Atom prop, const char *str, int len) |
1012 |
{ |
1013 |
XChangeProperty (display->display, parent[0], |
1014 |
prop, XA_STRING, 8, PropModeReplace, |
1015 |
(const unsigned char *)str, len >= 0 ? len : strlen (str)); |
1016 |
} |
1017 |
|
1018 |
void rxvt_term::set_utf8_property (Atom prop, const char *str, int len) |
1019 |
{ |
1020 |
wchar_t *ws = rxvt_mbstowcs (str, len); |
1021 |
char *s = rxvt_wcstoutf8 (ws); |
1022 |
|
1023 |
XChangeProperty (display->display, parent[0], |
1024 |
prop, xa[XA_UTF8_STRING], 8, PropModeReplace, |
1025 |
(const unsigned char *)s, strlen (s)); |
1026 |
|
1027 |
free (s); |
1028 |
free (ws); |
1029 |
} |
1030 |
|
1031 |
/*----------------------------------------------------------------------*/ |
1032 |
/*----------------------------------------------------------------------*/ |
1033 |
/* xterm sequences - title, iconName, color (exptl) */ |
1034 |
void |
1035 |
rxvt_term::set_title (const char *str) |
1036 |
{ |
1037 |
set_string_property (XA_WM_NAME, str); |
1038 |
#if ENABLE_EWMH |
1039 |
set_utf8_property (xa[XA_NET_WM_NAME], str); |
1040 |
#endif |
1041 |
} |
1042 |
|
1043 |
void |
1044 |
rxvt_term::set_icon_name (const char *str) |
1045 |
{ |
1046 |
set_string_property (XA_WM_ICON_NAME, str); |
1047 |
#if ENABLE_EWMH |
1048 |
set_utf8_property (xa[XA_NET_WM_ICON_NAME], str); |
1049 |
#endif |
1050 |
} |
1051 |
|
1052 |
#ifdef XTERM_COLOR_CHANGE |
1053 |
void |
1054 |
rxvt_term::set_window_color (int idx, const char *color) |
1055 |
{ |
1056 |
rxvt_color xcol; |
1057 |
int i; |
1058 |
|
1059 |
if (color == NULL || *color == '\0') |
1060 |
return; |
1061 |
|
1062 |
/* handle color aliases */ |
1063 |
if (isdigit (*color)) |
1064 |
{ |
1065 |
i = atoi (color); |
1066 |
|
1067 |
if (i >= 8 && i <= 15) |
1068 |
{ /* bright colors */ |
1069 |
i -= 8; |
1070 |
pix_colors_focused[idx] = pix_colors_focused[minBrightCOLOR + i]; |
1071 |
SET_PIXCOLOR (idx); |
1072 |
goto done; |
1073 |
} |
1074 |
|
1075 |
if (i >= 0 && i <= 7) |
1076 |
{ /* normal colors */ |
1077 |
pix_colors_focused[idx] = pix_colors_focused[minCOLOR + i]; |
1078 |
SET_PIXCOLOR (idx); |
1079 |
goto done; |
1080 |
} |
1081 |
} |
1082 |
|
1083 |
if (!rXParseAllocColor (&xcol, color)) |
1084 |
return; |
1085 |
|
1086 |
/* XStoreColor (display->display, display->cmap, XColor*); */ |
1087 |
|
1088 |
/* |
1089 |
* FIXME: should free colors here, but no idea how to do it so instead, |
1090 |
* so just keep gobbling up the colormap |
1091 |
*/ |
1092 |
# if 0 |
1093 |
for (i = Color_Black; i <= Color_White; i++) |
1094 |
if (pix_colors[idx] == pix_colors[i]) |
1095 |
break; |
1096 |
if (i > Color_White) |
1097 |
{ |
1098 |
/* fprintf (stderr, "XFreeColors: pix_colors [%d] = %lu\n", idx, pix_colors [idx]); */ |
1099 |
XFreeColors (display->display, display->cmap, (pix_colors + idx), 1, |
1100 |
DisplayPlanes (display->display, display->screen)); |
1101 |
} |
1102 |
# endif |
1103 |
|
1104 |
pix_colors_focused[idx] = xcol; |
1105 |
SET_PIXCOLOR (idx); |
1106 |
|
1107 |
/* XSetWindowAttributes attr; */ |
1108 |
/* Cursor cursor; */ |
1109 |
done: |
1110 |
|
1111 |
#if OFF_FOCUS_FADING |
1112 |
if (rs[Rs_fade]) |
1113 |
pix_colors_unfocused[idx] = pix_colors_focused[idx].fade (display, atoi (rs[Rs_fade]), pix_colors[Color_fade]); |
1114 |
#endif |
1115 |
|
1116 |
/*TODO: handle Color_BD, scrollbar background, etc. */ |
1117 |
|
1118 |
recolour_cursor (); |
1119 |
scr_recolour (); |
1120 |
} |
1121 |
|
1122 |
#else |
1123 |
# define set_window_color (idx,color) ((void)0) |
1124 |
#endif /* XTERM_COLOR_CHANGE */ |
1125 |
|
1126 |
void |
1127 |
rxvt_term::recolour_cursor () |
1128 |
{ |
1129 |
XColor xcol[2]; |
1130 |
|
1131 |
xcol[0].pixel = ISSET_PIXCOLOR (Color_pointer_fg) |
1132 |
? pix_colors_focused[Color_pointer_fg] |
1133 |
: pix_colors_focused[Color_fg]; |
1134 |
xcol[1].pixel = ISSET_PIXCOLOR (Color_pointer_bg) |
1135 |
? pix_colors_focused[Color_pointer_bg] |
1136 |
: pix_colors_focused[Color_bg]; |
1137 |
|
1138 |
XQueryColors (display->display, display->cmap, xcol, 2); |
1139 |
XRecolorCursor (display->display, TermWin_cursor, xcol + 0, xcol + 1); |
1140 |
} |
1141 |
|
1142 |
/*----------------------------------------------------------------------*/ |
1143 |
/* |
1144 |
* find if fg/bg matches any of the normal (low-intensity) colors |
1145 |
*/ |
1146 |
void |
1147 |
rxvt_term::set_colorfgbg () |
1148 |
{ |
1149 |
unsigned int i; |
1150 |
const char *xpmb = "\0"; |
1151 |
char fstr[sizeof ("default") + 1], bstr[sizeof ("default") + 1]; |
1152 |
|
1153 |
env_colorfgbg = (char *)rxvt_malloc (sizeof ("COLORFGBG=default;default;bg") + 1); |
1154 |
strcpy (fstr, "default"); |
1155 |
strcpy (bstr, "default"); |
1156 |
for (i = Color_Black; i <= Color_White; i++) |
1157 |
if (pix_colors[Color_fg] == pix_colors[i]) |
1158 |
{ |
1159 |
sprintf (fstr, "%d", (i - Color_Black)); |
1160 |
break; |
1161 |
} |
1162 |
|
1163 |
for (i = Color_Black; i <= Color_White; i++) |
1164 |
if (pix_colors[Color_bg] == pix_colors[i]) |
1165 |
{ |
1166 |
sprintf (bstr, "%d", (i - Color_Black)); |
1167 |
#ifdef XPM_BACKGROUND |
1168 |
xpmb = "default;"; |
1169 |
#endif |
1170 |
break; |
1171 |
} |
1172 |
|
1173 |
sprintf (env_colorfgbg, "COLORFGBG=%s;%s%s", fstr, xpmb, bstr); |
1174 |
} |
1175 |
|
1176 |
/*----------------------------------------------------------------------*/ |
1177 |
|
1178 |
int |
1179 |
rxvt_term::rXParseAllocColor (rxvt_color *screen_in_out, const char *colour) |
1180 |
{ |
1181 |
if (!screen_in_out->set (display, colour)) |
1182 |
{ |
1183 |
rxvt_warn ("can't get colour '%s', continuing without.\n", colour); |
1184 |
return false; |
1185 |
} |
1186 |
|
1187 |
return true; |
1188 |
} |
1189 |
|
1190 |
/* -------------------------------------------------------------------- * |
1191 |
* - WINDOW RESIZING - * |
1192 |
* -------------------------------------------------------------------- */ |
1193 |
void |
1194 |
rxvt_term::resize_all_windows (unsigned int newwidth, unsigned int newheight, int ignoreparent) |
1195 |
{ |
1196 |
int fix_screen; |
1197 |
int old_width = szHint.width, old_height = szHint.height; |
1198 |
dDisp; |
1199 |
|
1200 |
window_calc (newwidth, newheight); |
1201 |
XSetWMNormalHints (disp, parent[0], &szHint); |
1202 |
|
1203 |
if (!ignoreparent) |
1204 |
{ |
1205 |
#ifdef SMART_RESIZE |
1206 |
/* |
1207 |
* resize by Marius Gedminas <marius.gedminas@uosis.mif.vu.lt> |
1208 |
* reposition window on resize depending on placement on screen |
1209 |
*/ |
1210 |
int x, y, x1, y1; |
1211 |
int dx, dy; |
1212 |
unsigned int unused_w1, unused_h1, unused_b1, unused_d1; |
1213 |
Window unused_cr; |
1214 |
|
1215 |
XTranslateCoordinates (disp, parent[0], display->root, |
1216 |
0, 0, &x, &y, &unused_cr); |
1217 |
XGetGeometry (disp, parent[0], &unused_cr, &x1, &y1, |
1218 |
&unused_w1, &unused_h1, &unused_b1, &unused_d1); |
1219 |
/* |
1220 |
* if display->root isn't the parent window, a WM will probably have offset |
1221 |
* our position for handles and decorations. Counter it |
1222 |
*/ |
1223 |
if (x1 != x || y1 != y) |
1224 |
{ |
1225 |
x -= x1; |
1226 |
y -= y1; |
1227 |
} |
1228 |
|
1229 |
x1 = (DisplayWidth (disp, display->screen) - old_width) / 2; |
1230 |
y1 = (DisplayHeight (disp, display->screen) - old_height) / 2; |
1231 |
dx = old_width - szHint.width; |
1232 |
dy = old_height - szHint.height; |
1233 |
|
1234 |
/* Check position of the center of the window */ |
1235 |
if (x < x1) /* left half */ |
1236 |
dx = 0; |
1237 |
else if (x == x1) /* exact center */ |
1238 |
dx /= 2; |
1239 |
if (y < y1) /* top half */ |
1240 |
dy = 0; |
1241 |
else if (y == y1) /* exact center */ |
1242 |
dy /= 2; |
1243 |
|
1244 |
XMoveResizeWindow (disp, parent[0], x + dx, y + dy, |
1245 |
szHint.width, szHint.height); |
1246 |
#else |
1247 |
XResizeWindow (disp, parent[0], szHint.width, szHint.height); |
1248 |
#endif |
1249 |
} |
1250 |
|
1251 |
fix_screen = ncol != prev_ncol || nrow != prev_nrow; |
1252 |
|
1253 |
if (fix_screen || newwidth != old_width || newheight != old_height) |
1254 |
{ |
1255 |
if (scrollbar_visible ()) |
1256 |
{ |
1257 |
XMoveResizeWindow (disp, scrollBar.win, |
1258 |
window_sb_x, 0, |
1259 |
scrollbar_TotalWidth (), szHint.height); |
1260 |
resize_scrollbar (); |
1261 |
} |
1262 |
|
1263 |
if (menubar_visible ()) |
1264 |
XMoveResizeWindow (disp, menuBar.win, |
1265 |
window_vt_x, 0, |
1266 |
width, menuBar_TotalHeight ()); |
1267 |
|
1268 |
XMoveResizeWindow (disp, vt, |
1269 |
window_vt_x, window_vt_y, |
1270 |
width, height); |
1271 |
|
1272 |
scr_clear (); |
1273 |
#ifdef XPM_BACKGROUND |
1274 |
resize_pixmap (); |
1275 |
#endif |
1276 |
} |
1277 |
|
1278 |
if (fix_screen || old_height == 0) |
1279 |
{ |
1280 |
int curr_screen = -1; |
1281 |
int old_ncol = prev_ncol; |
1282 |
|
1283 |
/* scr_reset only works on the primary screen */ |
1284 |
if (old_height) /* this is not the first time through */ |
1285 |
{ |
1286 |
unsigned int ocol = ncol; |
1287 |
ncol = prev_ncol; // save b/c scr_blank_screen_mem uses this |
1288 |
curr_screen = scr_change_screen (PRIMARY); |
1289 |
ncol = ocol; |
1290 |
} |
1291 |
|
1292 |
scr_reset (); |
1293 |
|
1294 |
if (curr_screen >= 0) /* this is not the first time through */ |
1295 |
{ |
1296 |
scr_change_screen (curr_screen); |
1297 |
selection_check (old_ncol != ncol ? 4 : 0); |
1298 |
} |
1299 |
} |
1300 |
|
1301 |
old_width = szHint.width; |
1302 |
old_height = szHint.height; |
1303 |
|
1304 |
#ifdef XPM_BACKGROUND |
1305 |
if (pixmap) |
1306 |
scr_touch (false); |
1307 |
#endif |
1308 |
|
1309 |
#ifdef USE_XIM |
1310 |
IMSetStatusPosition (); |
1311 |
#endif |
1312 |
} |
1313 |
|
1314 |
/* |
1315 |
* Set the width/height of the vt window in characters. Units are pixels. |
1316 |
* good for toggling 80/132 columns |
1317 |
*/ |
1318 |
void |
1319 |
rxvt_term::set_widthheight (unsigned int newwidth, unsigned int newheight) |
1320 |
{ |
1321 |
XWindowAttributes wattr; |
1322 |
|
1323 |
if (newwidth == 0 || newheight == 0) |
1324 |
{ |
1325 |
XGetWindowAttributes (display->display, display->root, &wattr); |
1326 |
|
1327 |
if (newwidth == 0) |
1328 |
newwidth = wattr.width - szHint.base_width; |
1329 |
if (newheight == 0) |
1330 |
newheight = wattr.height - szHint.base_height; |
1331 |
} |
1332 |
|
1333 |
if (newwidth != width || newheight != height) |
1334 |
{ |
1335 |
newwidth += szHint.base_width; |
1336 |
newheight += szHint.base_height; |
1337 |
resize_all_windows (newwidth, newheight, 0); |
1338 |
} |
1339 |
} |
1340 |
|
1341 |
/* -------------------------------------------------------------------- * |
1342 |
* - X INPUT METHOD ROUTINES - * |
1343 |
* -------------------------------------------------------------------- */ |
1344 |
#ifdef USE_XIM |
1345 |
|
1346 |
void |
1347 |
rxvt_term::im_set_color (unsigned long &fg, unsigned long &bg) |
1348 |
{ |
1349 |
fg = pix_colors[Color_fg]; |
1350 |
bg = pix_colors[Color_bg]; |
1351 |
} |
1352 |
|
1353 |
void |
1354 |
rxvt_term::im_set_size (XRectangle &size) |
1355 |
{ |
1356 |
// the int_bwidth terms make no sense to me |
1357 |
size.x = int_bwidth; |
1358 |
size.y = int_bwidth; |
1359 |
size.width = Width2Pixel (ncol) + int_bwidth; |
1360 |
size.height = Height2Pixel (nrow) + int_bwidth; |
1361 |
} |
1362 |
|
1363 |
void |
1364 |
rxvt_term::im_set_preedit_area (XRectangle &preedit_rect, |
1365 |
XRectangle &status_rect, |
1366 |
const XRectangle &needed_rect) |
1367 |
{ |
1368 |
preedit_rect.x = needed_rect.width; |
1369 |
preedit_rect.y = 0; |
1370 |
preedit_rect.width = Width2Pixel (ncol) - needed_rect.width + 1; |
1371 |
preedit_rect.height = fheight; |
1372 |
|
1373 |
status_rect.x = 0; |
1374 |
status_rect.y = 0; |
1375 |
status_rect.width = needed_rect.width ? needed_rect.width : Width2Pixel (ncol) + 1; |
1376 |
status_rect.height = fheight; |
1377 |
} |
1378 |
|
1379 |
/* Checking whether input method is running. */ |
1380 |
bool |
1381 |
rxvt_term::IMisRunning () |
1382 |
{ |
1383 |
char *p; |
1384 |
Atom atom; |
1385 |
Window win; |
1386 |
char server[IMBUFSIZ]; |
1387 |
|
1388 |
/* get current locale modifier */ |
1389 |
if ((p = XSetLocaleModifiers (NULL)) != NULL) |
1390 |
{ |
1391 |
strcpy (server, "@server="); |
1392 |
strncat (server, & (p[4]), IMBUFSIZ - 9); /* skip "@im=" */ |
1393 |
|
1394 |
if ((p = strchr (server + 1, '@')) != NULL) /* first one only */ |
1395 |
*p = '\0'; |
1396 |
|
1397 |
atom = XInternAtom (display->display, server, False); |
1398 |
win = XGetSelectionOwner (display->display, atom); |
1399 |
|
1400 |
if (win != None) |
1401 |
return True; |
1402 |
} |
1403 |
|
1404 |
return False; |
1405 |
} |
1406 |
|
1407 |
void |
1408 |
rxvt_term::IMSendSpot () |
1409 |
{ |
1410 |
XPoint nspot; |
1411 |
XVaNestedList preedit_attr; |
1412 |
|
1413 |
if (!Input_Context |
1414 |
|| !focus |
1415 |
|| !(input_style & XIMPreeditPosition)) |
1416 |
return; |
1417 |
|
1418 |
im_set_position (nspot); |
1419 |
|
1420 |
if (nspot.x == spot.x && nspot.y == spot.y) |
1421 |
return; |
1422 |
|
1423 |
spot = nspot; |
1424 |
|
1425 |
preedit_attr = XVaCreateNestedList (0, XNSpotLocation, &spot, NULL); |
1426 |
XSetICValues (Input_Context, XNPreeditAttributes, preedit_attr, NULL); |
1427 |
XFree (preedit_attr); |
1428 |
} |
1429 |
|
1430 |
void |
1431 |
rxvt_term::im_destroy () |
1432 |
{ |
1433 |
if (input_method) |
1434 |
{ |
1435 |
if (Input_Context && input_method->xim) |
1436 |
XDestroyIC (Input_Context); |
1437 |
|
1438 |
display->put_xim (input_method); |
1439 |
input_method = 0; |
1440 |
} |
1441 |
|
1442 |
Input_Context = 0; |
1443 |
} |
1444 |
|
1445 |
/* |
1446 |
* Try to open a XIM with the current modifiers, then see if we can |
1447 |
* open a suitable preedit type |
1448 |
*/ |
1449 |
bool |
1450 |
rxvt_term::IM_get_IC (const char *modifiers) |
1451 |
{ |
1452 |
int i, j, found; |
1453 |
XIM xim; |
1454 |
XPoint spot; |
1455 |
XRectangle rect, status_rect, needed_rect; |
1456 |
unsigned long fg, bg; |
1457 |
const char *p; |
1458 |
char **s; |
1459 |
XIMStyles *xim_styles; |
1460 |
|
1461 |
TEMP_ENV; |
1462 |
|
1463 |
if (! ((p = XSetLocaleModifiers (modifiers)) && *p)) |
1464 |
return false; |
1465 |
|
1466 |
D_MAIN ((stderr, "rxvt_IM_get_IC ()")); |
1467 |
input_method = display->get_xim (locale, modifiers); |
1468 |
if (input_method == NULL) |
1469 |
return false; |
1470 |
|
1471 |
xim = input_method->xim; |
1472 |
spot.x = spot.y = -1; |
1473 |
|
1474 |
xim_styles = NULL; |
1475 |
if (XGetIMValues (xim, XNQueryInputStyle, &xim_styles, NULL) |
1476 |
|| !xim_styles || !xim_styles->count_styles) |
1477 |
{ |
1478 |
im_destroy (); |
1479 |
return false; |
1480 |
} |
1481 |
|
1482 |
const char *pet[] = { rs[Rs_preeditType], "OverTheSpot,OffTheSpot,Root,None" }; |
1483 |
|
1484 |
for (int pi = 0; pi < 2; pi++) |
1485 |
{ |
1486 |
p = pet[pi]; |
1487 |
|
1488 |
if (!p) |
1489 |
continue; |
1490 |
|
1491 |
s = rxvt_splitcommastring (p); |
1492 |
|
1493 |
for (i = found = 0; !found && s[i]; i++) |
1494 |
{ |
1495 |
if (!strcmp (s[i], "OverTheSpot")) |
1496 |
input_style = (XIMPreeditPosition | XIMStatusNothing); |
1497 |
else if (!strcmp (s[i], "OffTheSpot")) |
1498 |
input_style = (XIMPreeditArea | XIMStatusArea); |
1499 |
else if (!strcmp (s[i], "Root")) |
1500 |
input_style = (XIMPreeditNothing | XIMStatusNothing); |
1501 |
else if (!strcmp (s[i], "None")) |
1502 |
input_style = (XIMPreeditNone | XIMStatusNone); |
1503 |
|
1504 |
for (j = 0; j < xim_styles->count_styles; j++) |
1505 |
if (input_style == xim_styles->supported_styles[j]) |
1506 |
{ |
1507 |
rxvt_freecommastring (s); |
1508 |
|
1509 |
found = 1; |
1510 |
goto foundpet; |
1511 |
} |
1512 |
|
1513 |
} |
1514 |
|
1515 |
rxvt_freecommastring (s); |
1516 |
} |
1517 |
|
1518 |
foundpet: |
1519 |
|
1520 |
XFree (xim_styles); |
1521 |
|
1522 |
if (!found) |
1523 |
{ |
1524 |
im_destroy (); |
1525 |
return false; |
1526 |
} |
1527 |
|
1528 |
XFontSet fs = 0; |
1529 |
XVaNestedList preedit_attr = 0, status_attr = 0; |
1530 |
|
1531 |
if (input_style & (XIMPreeditPosition | XIMPreeditArea)) |
1532 |
{ |
1533 |
// fake us a font-set, please |
1534 |
char **missing_charset_list; |
1535 |
int missing_charset_count; |
1536 |
char *def_string; |
1537 |
char pat[512]; |
1538 |
|
1539 |
sprintf (pat, |
1540 |
"-*-*-*-R-*-*-%d-*-*-*-*-*-*," |
1541 |
"-*-*-*-R-*-*-%d-*-*-*-*-*-*," |
1542 |
"-*-*-*-R-*-*-%d-*-*-*-*-*-*," |
1543 |
"-*-*-*-R-*-*-%d-*-*-*-*-*-*," |
1544 |
"-*-*-*-R-*-*-%d-*-*-*-*-*-*," |
1545 |
"*", |
1546 |
fheight, |
1547 |
fheight + 1, fheight - 1, |
1548 |
fheight - 2, fheight + 2); |
1549 |
|
1550 |
fs = XCreateFontSet (display->display, rs[Rs_imFont] ? rs[Rs_imFont] : pat, |
1551 |
&missing_charset_list, &missing_charset_count, &def_string); |
1552 |
|
1553 |
if (missing_charset_list) |
1554 |
XFreeStringList (missing_charset_list); |
1555 |
|
1556 |
if (!fs) |
1557 |
{ |
1558 |
input_style &= ~(XIMPreeditPosition | XIMPreeditArea); |
1559 |
rxvt_warn ("unable to create fontset for input method, try \"-pt Root\". Continuing.\n"); |
1560 |
} |
1561 |
} |
1562 |
|
1563 |
if (input_style & XIMPreeditPosition) |
1564 |
{ |
1565 |
im_set_size (rect); |
1566 |
im_set_position (spot); |
1567 |
im_set_color (fg, bg); |
1568 |
|
1569 |
preedit_attr = XVaCreateNestedList (0, |
1570 |
XNForeground, fg, |
1571 |
XNBackground, bg, |
1572 |
XNArea, &rect, |
1573 |
XNSpotLocation, &spot, |
1574 |
XNFontSet, fs, |
1575 |
NULL); |
1576 |
} |
1577 |
else if (input_style & XIMPreeditArea) |
1578 |
{ |
1579 |
im_set_color (fg, bg); |
1580 |
|
1581 |
/* |
1582 |
* The necessary width of preedit area is unknown |
1583 |
* until create input context. |
1584 |
*/ |
1585 |
needed_rect.width = 0; |
1586 |
im_set_preedit_area (rect, status_rect, needed_rect); |
1587 |
|
1588 |
preedit_attr = XVaCreateNestedList (0, |
1589 |
XNForeground, fg, |
1590 |
XNBackground, bg, |
1591 |
XNArea, &rect, |
1592 |
XNFontSet, fs, |
1593 |
NULL); |
1594 |
status_attr = XVaCreateNestedList (0, |
1595 |
XNForeground, fg, |
1596 |
XNBackground, bg, |
1597 |
XNArea, &status_rect, |
1598 |
XNFontSet, fs, |
1599 |
NULL); |
1600 |
} |
1601 |
|
1602 |
Input_Context = XCreateIC (xim, |
1603 |
XNInputStyle, input_style, |
1604 |
XNClientWindow, vt, |
1605 |
XNFocusWindow, parent[0], |
1606 |
preedit_attr ? XNPreeditAttributes : NULL, |
1607 |
preedit_attr, |
1608 |
status_attr ? XNStatusAttributes : NULL, |
1609 |
status_attr, NULL); |
1610 |
|
1611 |
if (preedit_attr) XFree (preedit_attr); |
1612 |
if (status_attr) XFree (status_attr); |
1613 |
if (fs) XFreeFontSet (display->display, fs); |
1614 |
|
1615 |
if (Input_Context == NULL) |
1616 |
{ |
1617 |
rxvt_warn ("failed to create input context, continuing without XIM.\n"); |
1618 |
im_destroy (); |
1619 |
return false; |
1620 |
} |
1621 |
|
1622 |
if (input_style & XIMPreeditArea) |
1623 |
IMSetStatusPosition (); |
1624 |
|
1625 |
D_MAIN ((stderr, "rxvt_IM_get_IC () - successful connection")); |
1626 |
return true; |
1627 |
} |
1628 |
|
1629 |
void |
1630 |
rxvt_term::im_cb () |
1631 |
{ |
1632 |
int i; |
1633 |
const char *p; |
1634 |
char **s; |
1635 |
char buf[IMBUFSIZ]; |
1636 |
|
1637 |
SET_R (this); |
1638 |
|
1639 |
im_destroy (); |
1640 |
|
1641 |
D_MAIN ((stderr, "rxvt_IMInstantiateCallback ()")); |
1642 |
if (Input_Context) |
1643 |
return; |
1644 |
|
1645 |
#if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE) |
1646 |
if (rs[Rs_imLocale]) |
1647 |
SET_LOCALE (rs[Rs_imLocale]); |
1648 |
#endif |
1649 |
|
1650 |
p = rs[Rs_inputMethod]; |
1651 |
if (p && *p) |
1652 |
{ |
1653 |
bool found = false; |
1654 |
|
1655 |
s = rxvt_splitcommastring (p); |
1656 |
|
1657 |
for (i = 0; s[i]; i++) |
1658 |
{ |
1659 |
if (*s[i]) |
1660 |
{ |
1661 |
strcpy (buf, "@im="); |
1662 |
strncat (buf, s[i], IMBUFSIZ - 5); |
1663 |
if (IM_get_IC (buf)) |
1664 |
{ |
1665 |
found = true; |
1666 |
break; |
1667 |
} |
1668 |
} |
1669 |
} |
1670 |
|
1671 |
rxvt_freecommastring (s); |
1672 |
|
1673 |
if (found) |
1674 |
goto done; |
1675 |
} |
1676 |
|
1677 |
/* try with XMODIFIERS env. var. */ |
1678 |
if (IM_get_IC ("")) |
1679 |
goto done; |
1680 |
|
1681 |
/* try with no modifiers base IF the user didn't specify an IM */ |
1682 |
if (IM_get_IC ("@im=none")) |
1683 |
goto done; |
1684 |
|
1685 |
done: |
1686 |
#if defined(HAVE_XSETLOCALE) || defined(HAVE_SETLOCALE) |
1687 |
if (rs[Rs_imLocale]) |
1688 |
SET_LOCALE (locale); |
1689 |
#endif |
1690 |
} |
1691 |
|
1692 |
void |
1693 |
rxvt_term::IMSetStatusPosition () |
1694 |
{ |
1695 |
XRectangle preedit_rect, status_rect, *needed_rect; |
1696 |
XVaNestedList preedit_attr, status_attr; |
1697 |
|
1698 |
if (!Input_Context |
1699 |
|| !focus |
1700 |
|| !(input_style & XIMPreeditArea) |
1701 |
|| !IMisRunning ()) |
1702 |
return; |
1703 |
|
1704 |
/* Getting the necessary width of preedit area */ |
1705 |
status_attr = XVaCreateNestedList (0, XNAreaNeeded, &needed_rect, NULL); |
1706 |
XGetICValues (Input_Context, XNStatusAttributes, status_attr, NULL); |
1707 |
XFree (status_attr); |
1708 |
|
1709 |
im_set_preedit_area (preedit_rect, status_rect, *needed_rect); |
1710 |
XFree (needed_rect); |
1711 |
|
1712 |
preedit_attr = XVaCreateNestedList (0, XNArea, &preedit_rect, NULL); |
1713 |
status_attr = XVaCreateNestedList (0, XNArea, &status_rect, NULL); |
1714 |
|
1715 |
XSetICValues (Input_Context, |
1716 |
XNPreeditAttributes, preedit_attr, |
1717 |
XNStatusAttributes, status_attr, NULL); |
1718 |
|
1719 |
XFree (preedit_attr); |
1720 |
XFree (status_attr); |
1721 |
} |
1722 |
#endif /* USE_XIM */ |
1723 |
|
1724 |
/*----------------------------------------------------------------------*/ |
1725 |
rxvt_t rxvt_current_term; |
1726 |
|
1727 |
/*----------------------- end-of-file (C source) -----------------------*/ |