/* * Copyright (C) 1996-2000 Michael R. Elkins * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA. */ #include "mutt.h" #include "mutt_menu.h" #include "mutt_curses.h" #include "keymap.h" #include "history.h" #include #include #include #include #include #include #include #include /* macro to print control chars in reverse-video */ #define ADDCH(x) addch (IsPrint (x) ? x : (ColorDefs[MT_COLOR_MARKERS] | (x + '@'))) /* redraw flags for mutt_enter_string() */ enum { M_REDRAW_INIT = 1, /* recalculate lengths */ M_REDRAW_LINE, /* redraw entire line */ M_REDRAW_EOL, /* redraw from current position to eol */ M_REDRAW_PREV_EOL, /* redraw from curpos-1 to eol */ M_REDRAW_COMPLETION /* recalculate lengths after autocompletion */ }; /* Returns: * 1 need to redraw the screen and call me again * 0 if input was given * -1 if abort. * */ int _mutt_enter_string (unsigned char *buf, size_t buflen, int y, int x, int flags, int multiple, char ***files, int *numfiles) { event_t event; int curpos = 0; /* the location of the cursor */ int lastchar = 0; /* offset of the last char in the string */ int begin = 0; /* first character displayed on the line */ int ch; /* last typed character */ int width = COLS - x - 1; /* width of field */ int redraw = M_REDRAW_INIT; /* when/what to redraw */ int pass = (flags == M_PASS); int first = 1; int j; char tempbuf[_POSIX_PATH_MAX] = ""; history_class_t hclass; int tabs = 0; /* number of *consecutive* TABs */ char savebuf[HUGE_STRING] = ""; /* part after autocompletion point */ static int save_len = -1; /* length of savebuf */ static int last_begin = -1; /* saved value of begin */ if (last_begin >= 0) { /* Coming back after return (1); */ begin = last_begin; redraw = M_REDRAW_COMPLETION; last_begin = -1; } if (flags & (M_FILE | M_EFILE)) hclass = HC_FILE; else if (flags & M_CMD) hclass = HC_CMD; else if (flags & M_ALIAS) hclass = HC_ALIAS; else if (flags & M_COMMAND) hclass = HC_COMMAND; else if (flags & M_PATTERN) hclass = HC_PATTERN; else hclass = HC_OTHER; FOREVER { if (redraw) { if (redraw == M_REDRAW_INIT) { /* full redraw */ lastchar = curpos = mutt_strlen ((char *) buf); begin = lastchar - width; } else if (redraw == M_REDRAW_COMPLETION) { /* full redraw, move to the point of autocompletion */ lastchar = mutt_strlen ((char *) buf); curpos = lastchar - save_len; if (curpos >= begin + width - 1 || curpos <= begin) begin = curpos - width / 2; } if (begin < 0) begin = 0; switch (redraw) { case M_REDRAW_PREV_EOL: j = curpos - 1; break; case M_REDRAW_EOL: j = curpos; break; default: j = begin; } move (y, x + j - begin); for (; j < lastchar && j < begin + width; j++) ADDCH (buf[j]); clrtoeol (); if (redraw != M_REDRAW_INIT) move (y, x + curpos - begin); redraw = 0; } mutt_refresh (); /* first look to see if a keypress is an editor operation. km_dokey() * returns 0 if there is no entry in the keymap, so restore the last * keypress and continue normally. */ if ((ch = km_dokey (MENU_EDITOR)) == -1) { buf[curpos] = 0; return (-1); } if (ch != OP_NULL) { first = 0; /* make sure not to clear the buffer */ if (ch != OP_EDITOR_COMPLETE) tabs = 0; switch (ch) { case OP_EDITOR_HISTORY_UP: if (!pass) { strfcpy ((char *) buf, mutt_history_prev (hclass), buflen); redraw = M_REDRAW_INIT; } break; case OP_EDITOR_HISTORY_DOWN: if (!pass) { strfcpy ((char *) buf, mutt_history_next (hclass), buflen); redraw = M_REDRAW_INIT; } break; case OP_EDITOR_BACKSPACE: if (curpos == 0) { BEEP (); break; } for (j = curpos ; j < lastchar ; j++) buf[j - 1] = buf[j]; curpos--; lastchar--; if (!pass) { if (curpos > begin) { if (lastchar == curpos) { move (y, x + curpos - begin); delch (); } else redraw = M_REDRAW_EOL; } else { begin -= width / 2; redraw = M_REDRAW_LINE; } } break; case OP_EDITOR_BOL: /* reposition the cursor at the begininning of the line */ curpos = 0; if (!pass) { if (begin) { /* the first char is not displayed, so readjust */ begin = 0; redraw = M_REDRAW_LINE; } else move (y, x); } break; case OP_EDITOR_EOL: curpos = lastchar; if (!pass) { if (lastchar < begin + width) move (y, x + lastchar - begin); else { begin = lastchar - width / 2; redraw = M_REDRAW_LINE; } } break; case OP_EDITOR_KILL_LINE: lastchar = curpos = 0; if (!pass) { begin = 0; redraw = M_REDRAW_LINE; } break; case OP_EDITOR_KILL_EOL: lastchar = curpos; if (!pass) clrtoeol (); break; case OP_EDITOR_BACKWARD_CHAR: if (curpos == 0) { BEEP (); } else { curpos--; if (!pass) { if (curpos < begin) { begin -= width / 2; redraw = M_REDRAW_LINE; } else move (y, x + curpos - begin); } } break; case OP_EDITOR_FORWARD_CHAR: if (curpos == lastchar) { BEEP (); } else { curpos++; if (!pass) { if (curpos >= begin + width) { begin = curpos - width / 2; redraw = M_REDRAW_LINE; } else move (y, x + curpos - begin); } } break; case OP_EDITOR_DELETE_CHAR: if (curpos != lastchar) { for (j = curpos; j < lastchar; j++) buf[j] = buf[j + 1]; lastchar--; if (!pass) redraw = M_REDRAW_EOL; } else BEEP (); break; case OP_EDITOR_KILL_WORD: /* delete to begining of word */ if (curpos != 0) { j = curpos; while (j > 0 && ISSPACE (buf[j - 1])) j--; if (j > 0) { if (isalnum (buf[j - 1])) { for (j--; j > 0 && isalnum (buf[j - 1]); j--) ; } else j--; } ch = j; /* save current position */ while (curpos < lastchar) buf[j++] = buf[curpos++]; lastchar = j; curpos = ch; /* restore current position */ /* update screen */ if (!pass) { if (curpos < begin) { begin = curpos - width / 2; redraw = M_REDRAW_LINE; } else redraw = M_REDRAW_EOL; } } break; case OP_EDITOR_BUFFY_CYCLE: if (flags & M_EFILE) { first = 1; /* clear input if user types a real key later */ buf[curpos] = 0; mutt_buffy ((char *) buf); redraw = M_REDRAW_INIT; break; } else if (!(flags & M_FILE)) goto self_insert; /* fall through to completion routine (M_FILE) */ case OP_EDITOR_COMPLETE: tabs++; if (flags & M_CMD) { buf[lastchar] = 0; strfcpy (savebuf, (char *) buf + curpos, sizeof(savebuf)); buf[curpos] = 0; for (j = curpos - 1; j >= 0 && buf[j] != ' '; j--); if (mutt_strcmp (tempbuf, (char *) buf + j + 1) == 0) { mutt_select_file ((char *) buf + j + 1, buflen - j - 1, 0); set_option (OPTNEEDREDRAW); if (!buf[j + 1]) /* file selection cancelled */ strfcpy ((char *) buf + j + 1, tempbuf, buflen - j - 1); j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); last_begin = begin; return (1); } if (mutt_complete ((char *) buf + j + 1, buflen - (j + 1)) == 0) strfcpy (tempbuf, (char *) buf + j + 1, sizeof (tempbuf)); else BEEP (); j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); redraw = M_REDRAW_COMPLETION; } else if (flags & M_ALIAS) { /* invoke the alias-menu to get more addresses */ buf[lastchar] = 0; strfcpy (savebuf, (char *) buf + curpos, sizeof(savebuf)); buf[curpos] = 0; for (j = curpos - 1 ; j >= 0 && buf[j] != ',' ; j--); for (++j; buf[j] == ' '; j++) ; if (mutt_alias_complete ((char *) buf + j, buflen - j)) { j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); redraw = M_REDRAW_COMPLETION; continue; } j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); last_begin = begin; return (1); } else if (flags & M_COMMAND) { buf[lastchar] = 0; strfcpy (savebuf, (char *) buf + curpos, sizeof(savebuf)); buf[curpos] = 0; if (buf[curpos - 1] == '=' && mutt_var_value_complete ((char *) buf, buflen, curpos)) { tabs = 0; } else if (!mutt_command_complete ((char *) buf, buflen, curpos, tabs)) BEEP (); j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); redraw = M_REDRAW_COMPLETION; } else if (flags & (M_FILE | M_EFILE)) { buf[lastchar] = 0; strfcpy (savebuf, (char *) buf + curpos, sizeof(savebuf)); buf[curpos] = 0; /* see if the path has changed from the last time */ if (mutt_strcmp (tempbuf, (char *) buf) == 0) { _mutt_select_file ((char *) buf, buflen, 0, multiple, files, numfiles); set_option (OPTNEEDREDRAW); if (buf[0]) { mutt_pretty_mailbox ((char *) buf); mutt_history_add (hclass, (char *) buf); return (0); } /* file selection cancelled */ strfcpy ((char *) buf, tempbuf, buflen); j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); last_begin = begin; return (1); } if (mutt_complete ((char *) buf, buflen) == 0) strfcpy (tempbuf, (char *) buf, sizeof (tempbuf)); else BEEP (); /* let the user know that nothing matched */ j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); redraw = M_REDRAW_COMPLETION; } else goto self_insert; break; case OP_EDITOR_COMPLETE_QUERY: if (flags & M_ALIAS) { /* invoke the query-menu to get more addresses */ buf[lastchar] = 0; strfcpy (savebuf, (char *) buf + curpos, sizeof(savebuf)); buf[curpos] = 0; if (curpos) { for (j = curpos - 1 ; j >= 0 && buf[j] != ',' ; j--); for (j++; buf[j] == ' '; j++); mutt_query_complete ((char *) buf + j, buflen - j); } else mutt_query_menu ((char *) buf, buflen); j = mutt_strlen ((char *) buf); strfcpy ((char *) buf + j, savebuf, buflen - j); save_len = mutt_strlen (savebuf); last_begin = begin; return (1); } else goto self_insert; case OP_EDITOR_QUOTE_CHAR: ADDCH (LastKey); event = mutt_getch (); if(event.ch != -1) { LastKey = event.ch; move (y, x + curpos - begin); goto self_insert; } default: BEEP (); } } else { self_insert: tabs = 0; /* use the raw keypress */ ch = LastKey; if (first && (flags & M_CLEAR)) { first = 0; if (IsPrint (ch)) { mutt_ungetch (ch, 0); buf[0] = 0; redraw = M_REDRAW_INIT; continue; } } if (CI_is_return (ch)) { buf[lastchar] = 0; if (!pass) mutt_history_add (hclass, (char *) buf); if (multiple) { char **tfiles; *numfiles = 1; tfiles = safe_malloc (*numfiles * sizeof (char *)); mutt_expand_path ((char *) buf, buflen); tfiles[0] = safe_strdup ((char *) buf); *files = tfiles; } return (0); } else if ((ch < ' ' || IsPrint (ch)) && (lastchar + 1 < buflen)) { for (j = lastchar; j > curpos; j--) buf[j] = buf[j - 1]; buf[curpos++] = ch; lastchar++; if (!pass) { if (curpos >= begin + width) { begin = curpos - width / 2; redraw = M_REDRAW_LINE; } else if (curpos == lastchar) ADDCH (ch); else redraw = M_REDRAW_PREV_EOL; } } else { mutt_flushinp (); BEEP (); } } } /* not reached */ }