lyoptions.c

基于rtos开发的浏览器！

			    local_exec = FALSE;
			    local_exec_on_local_files = FALSE;
			    break;
			case 1:
			    local_exec = FALSE;
			    local_exec_on_local_files = TRUE;
			    break;
#ifndef NEVER_ALLOW_REMOTE_EXEC
			case 2:
			    local_exec = TRUE;
			    local_exec_on_local_files = FALSE;
			    break;
#endif /* !NEVER_ALLOW_REMOTE_EXEC */
		    } /* end switch */
		}
		response = ' ';
		if (LYSelectPopups) {
#if !defined(VMS) || defined(USE_SLANG)
		    if (exec_frozen || term_options) {
			term_options = FALSE;
		    } else {
			AddValueAccepted = TRUE;
		    }
		    goto draw_options;
#else
		    term_options = FALSE;
#endif /* !VMS || USE_SLANG */
		}
		break;
#endif /* ALLOW_USERS_TO_CHANGE_EXEC_WITHIN_OPTIONS */

	    case '>':	/* Save current options to RC file. */
		if (!no_option_save) {
		    option_statusline(SAVING_OPTIONS);
		    if (save_rc()) {
			LYrcShowColor = LYChosenShowColor;
			option_statusline(OPTIONS_SAVED);
		    } else {
			HTAlert(OPTIONS_NOT_SAVED);
		    }
		} else {
		    option_statusline(R_TO_RETURN_TO_LYNX);
		    /*
		     *	Change response so that we don't exit
		     *	the options menu.
		     */
		    response = ' ';
		}
		break;

	    case 'r':	/* Return to document (quit options menu). */
	    case 'R':
		break;

	    default:
		if (!no_option_save) {
		    option_statusline(SAVE_OR_R_TO_RETURN_TO_LYNX);
		} else {
		    option_statusline(R_TO_RETURN_TO_LYNX);
		}
	}  /* end switch */
    }  /* end while */

    term_options = FALSE;
    signal(SIGINT, cleanup_sig);
}

/*
 *  Take a boolean status,prompt the user for a new status,
 *  and return it.
 */
PRIVATE int boolean_choice ARGS4(
	int,		cur_choice,
	int,		line,
	int,		column,
	char **,	choices)
{
    int response = 0;
    int cmd = 0;
    int number = 0;
    int col = (column >= 0 ? column : COL_OPTION_VALUES);
    int orig_choice = cur_choice;
#ifdef VMS
    extern BOOLEAN HadVMSInterrupt; /* Flag from cleanup_sig() AST */
#endif /* VMS */

    /*
     *	Get the number of choices and then make
     *	number zero-based.
     */
    for (number = 0; choices[number] != NULL; number++)
	;  /* empty loop body */
    number--;

    /*
     *	Update the statusline.
     */
    option_statusline(ANY_KEY_CHANGE_RET_ACCEPT);

    /*
     *	Highlight the current choice.
     */
    move(line, col);
    start_reverse();
    addstr(choices[cur_choice]);
    if (LYShowCursor)
	move(line, (col - 1));
    refresh();

    /*
     *	Get the keyboard entry, and leave the
     *	cursor at the choice, to indicate that
     *	it can be changed, until the user accepts
     *	the current choice.
     */
    term_options = FALSE;
    while (1) {
	move(line, col);
	if (term_options == FALSE) {
	    response = LYgetch();
	}
	if (term_options || response == 7 || response == 3) {
	     /*
	      *  Control-C or Control-G.
	      */
	    response = '\n';
	    term_options = TRUE;
	    cur_choice = orig_choice;
	}
#ifdef VMS
	if (HadVMSInterrupt) {
	    HadVMSInterrupt = FALSE;
	    response = '\n';
	    term_options = TRUE;
	    cur_choice = orig_choice;
	}
#endif /* VMS */
	if ((response != '\n' && response != '\r') &&
	    (cmd = keymap[response+1]) != LYK_ACTIVATE) {
	    switch (cmd) {
		case LYK_HOME:
		    cur_choice = 0;
		    break;

		case LYK_END:
		    cur_choice = number;
		    break;

		case LYK_REFRESH:
		    lynx_force_repaint();
		    refresh();
		    break;

		case LYK_QUIT:
		case LYK_ABORT:
		case LYK_PREV_DOC:
		    cur_choice = orig_choice;
		    term_options = TRUE;
		    break;

		case LYK_PREV_PAGE:
		case LYK_UP_HALF:
		case LYK_UP_TWO:
		case LYK_PREV_LINK:
		case LYK_UP_LINK:
		case LYK_LEFT_LINK:
		    if (cur_choice == 0)
			cur_choice = number;  /* go back to end */
		    else
			cur_choice--;
		    break;

		case LYK_1:
		case LYK_2:
		case LYK_3:
		case LYK_4:
		case LYK_5:
		case LYK_6:
		case LYK_7:
		case LYK_8:
		case LYK_9:
		    if((cmd - LYK_1 + 1) <= number) {
			cur_choice = cmd -LYK_1 + 1;
			break;
		    }  /* else fall through! */
		default:
		    if (cur_choice == number)
			cur_choice = 0;  /* go over the top and around */
		    else
			cur_choice++;
	    }  /* end of switch */
	    addstr(choices[cur_choice]);
	    if (LYShowCursor)
		move(line, (col - 1));
	    refresh();
	} else {
	    /*
	     *	Unhighlight choice.
	     */
	    move(line, col);
	    stop_reverse();
	    addstr(choices[cur_choice]);

	    if (term_options) {
		term_options = FALSE;
		option_statusline(CANCELLED);
		sleep(InfoSecs);
		option_statusline("");
	    } else {
		option_statusline(VALUE_ACCEPTED);
	    }
	    return(cur_choice);
	}
    }
}

PRIVATE void terminate_options ARGS1(
	int,		sig GCC_UNUSED)
{
    term_options = TRUE;
    /*
     *	Reassert the AST.
     */
    signal(SIGINT, terminate_options);
#ifdef VMS
    /*
     *	Refresh the screen to get rid of the "interrupt" message.
     */
    if (!dump_output_immediately) {
	lynx_force_repaint();
	refresh();
    }
#endif /* VMS */
}

/*
 *  Multi-Bookmark On-Line editing support. - FMG & FM
 */
PUBLIC void edit_bookmarks NOARGS
{
    int response = 0, def_response = 0, ch;
    int MBM_current = 1;
#define MULTI_OFFSET 8
    int a; /* misc counter */
    char MBM_tmp_line[256]; /* buffer for LYgetstr */
    char ehead_buffer[265];

    /*
     *	We need (MBM_V_MAXFILES + MULTI_OFFSET) lines to display
     *	the whole list at once.  Otherwise break it up into two
     *	segments.  We know it won't be less than that because
     *	'o'ptions needs 23-24 at LEAST.
     */
    term_options = FALSE;
    signal(SIGINT, terminate_options);

draw_bookmark_list:
    /*
     *	Display menu of bookmarks.  NOTE that we avoid printw()'s
     *	to increase the chances that any non-ASCII or multibyte/CJK
     *	characters will be handled properly. - FM
     */
#if defined(FANCY_CURSES) || defined (USE_SLANG)
    if (enable_scrollback) {
	clear();
    } else {
	erase();
    }
#else
    clear();
#endif /* FANCY_CURSES || USE_SLANG */
    move(0, 5);
    lynx_start_h1_color ();
    if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET)) {
	sprintf(ehead_buffer, MULTIBOOKMARKS_EHEAD_MASK, MBM_current);
	addstr(ehead_buffer);
    } else {
	addstr(MULTIBOOKMARKS_EHEAD);
    }
    lynx_stop_h1_color ();

    if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET)) {
	for (a = ((MBM_V_MAXFILES/2 + 1) * (MBM_current - 1));
		      a <= ((float)MBM_V_MAXFILES/2 * MBM_current); a++) {
	    move((3 + a) - ((MBM_V_MAXFILES/2 + 1)*(MBM_current - 1)), 5);
	    addch((unsigned char)(a + 'A'));
	    addstr(" : ");
	    if (MBM_A_subdescript[a])
		addstr(MBM_A_subdescript[a]);
	    move((3 + a) - ((MBM_V_MAXFILES/2 + 1)*(MBM_current - 1)), 35);
	    addstr("| ");
	    if (MBM_A_subbookmark[a]) {
		addstr(MBM_A_subbookmark[a]);
	    }
	}
    } else {
	for (a = 0; a <= MBM_V_MAXFILES; a++) {
	    move(3 + a, 5);
	    addch((unsigned char)(a + 'A'));
	    addstr(" : ");
	    if (MBM_A_subdescript[a])
		addstr(MBM_A_subdescript[a]);
	    move(3 + a, 35);
	    addstr("| ");
	    if (MBM_A_subbookmark[a]) {
		addstr(MBM_A_subbookmark[a]);
	    }
	}
    }

    /*
     *	Only needed when we have 2 screens.
     */
    if (LYlines < MBM_V_MAXFILES + MULTI_OFFSET) {
	move((LYlines - 4), 0);
	addstr("'");
	start_bold();
	addstr("[");
	stop_bold();
	addstr("' ");
	addstr(PREVIOUS);
	addstr(", '");
	start_bold();
	addstr("]");
	stop_bold();
	addstr("' ");
	addstr(NEXT_SCREEN);
    }

    move((LYlines - 3), 0);
    if (!no_option_save) {
	addstr("'");
	start_bold();
	addstr(">");
	stop_bold();
	addstr("'");
	addstr(TO_SAVE_SEGMENT);
    }
    addstr(OR_SEGMENT);
    addstr("'");
    start_bold();
    addstr("^G");
    stop_bold();
    addstr("'");
    addstr(TO_RETURN_SEGMENT);

    while (!term_options &&
	   !LYisNonAlnumKeyname(response, LYK_PREV_DOC) &&
	   response != 7 && response != 3 &&
	   response != '>') {

	move((LYlines - 2), 0);
	lynx_start_prompt_color ();
	addstr(MULTIBOOKMARKS_LETTER);
	lynx_stop_prompt_color ();

	refresh();
	response = (def_response ? def_response : LYgetch());
	def_response = 0;

	/*
	 *  Check for a cancel.
	 */
	if (term_options ||
	    response == 7 || response == 3 ||
	    LYisNonAlnumKeyname(response, LYK_PREV_DOC))
	    continue;

	/*
	 *  Check for a save.
	 */
	if (response == '>') {
	    if (!no_option_save) {
		option_statusline(SAVING_OPTIONS);
		if (save_rc())
		    option_statusline(OPTIONS_SAVED);
		else
		    HTAlert(OPTIONS_NOT_SAVED);
	    } else {
		option_statusline(R_TO_RETURN_TO_LYNX);
		/*
		 *  Change response so that we don't exit
		 *  the options menu.
		 */
		response = ' ';
	    }
	    continue;
	}

	/*
	 *  Check for a refresh.
	 */
	if (LYisNonAlnumKeyname(response, LYK_REFRESH)) {
	    lynx_force_repaint();
	    continue;
	}

	/*
	 *  Move between the screens - if we can't show it all at once.
	 */
	if ((response == ']' ||
	     LYisNonAlnumKeyname(response, LYK_NEXT_PAGE)) &&
	    LYlines < (MBM_V_MAXFILES + MULTI_OFFSET)) {
	    MBM_current++;
	    if (MBM_current >= 3)
		MBM_current = 1;
	    goto draw_bookmark_list;
	}
	if ((response == '[' ||
	     LYisNonAlnumKeyname(response, LYK_PREV_PAGE)) &&
	    LYlines < (MBM_V_MAXFILES + MULTI_OFFSET)) {
	    MBM_current--;
	    if (MBM_current <= 0)
		MBM_current = 2;
	    goto draw_bookmark_list;
	}

	/*
	 *  Instead of using 26 case statements, we set up
	 *  a scan through the letters and edit the lines
	 *  that way.
	 */
	for (a = 0; a <= MBM_V_MAXFILES; a++) {
	    if ((TOUPPER(response) - 'A') == a) {
		if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET)) {
		    if (MBM_current == 1 && a > (MBM_V_MAXFILES/2)) {
			MBM_current = 2;
			def_response = response;
			goto draw_bookmark_list;
		    }
		    if (MBM_current == 2 && a < (MBM_V_MAXFILES/2)) {
			MBM_current = 1;
			def_response = response;
			goto draw_bookmark_list;
		    }
		}
		option_statusline(ACCEPT_DATA);

		if (a > 0) {
		    start_bold();
		    if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET))
			move(
			 (3 + a) - ((MBM_V_MAXFILES/2 + 1)*(MBM_current - 1)),
			     9);
		    else
			move((3 + a), 9);
		    strcpy(MBM_tmp_line,
			   (!MBM_A_subdescript[a] ?
					       "" : MBM_A_subdescript[a]));
		    ch = LYgetstr(MBM_tmp_line, VISIBLE,
				  sizeof(MBM_tmp_line), NORECALL);
		    stop_bold();

		    if (strlen(MBM_tmp_line) < 1) {
			FREE(MBM_A_subdescript[a]);
		    } else {
			StrAllocCopy(MBM_A_subdescript[a], MBM_tmp_line);
		    }
		    if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET))
			move(
			 (3 + a) - ((MBM_V_MAXFILES/2 + 1)*(MBM_current - 1)),
			     5);
		    else
			move((3 + a), 5);
		    addch((unsigned char)(a + 'A'));
		    addstr(" : ");
		    if (MBM_A_subdescript[a])
			addstr(MBM_A_subdescript[a]);
		    clrtoeol();
		    refresh();
		}

		if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET))
		    move((3 + a) - ((MBM_V_MAXFILES/2 + 1)*(MBM_current - 1)),
			 35);
		else
		    move((3 + a), 35);
		addstr("| ");

		start_bold();
		strcpy(MBM_tmp_line,
		       (!MBM_A_subbookmark[a] ? "" : MBM_A_subbookmark[a]));
		ch = LYgetstr(MBM_tmp_line, VISIBLE,
			      sizeof(MBM_tmp_line), NORECALL);
		stop_bold();

		if (*MBM_tmp_line == '\0') {
		    if (a == 0)
			StrAllocCopy(MBM_A_subbookmark[a], bookmark_page);
		    else
			FREE(MBM_A_subbookmark[a]);
		} else if (!LYPathOffHomeOK(MBM_tmp_line,
					    sizeof(MBM_tmp_line))) {
			LYMBM_statusline(USE_PATH_OFF_HOME);
			sleep(AlertSecs);
		} else {
		    StrAllocCopy(MBM_A_subbookmark[a], MBM_tmp_line);
		    if (a == 0) {
			StrAllocCopy(bookmark_page, MBM_A_subbookmark[a]);
		    }
		}
		if (LYlines < (MBM_V_MAXFILES + MULTI_OFFSET))
		    move((3 + a) - ((MBM_V_MAXFILES/2 + 1)*(MBM_current-1)),
			 35);
		else
		    move((3 + a), 35);
		addstr("| ");
		if (MBM_A_subbookmark[a])
		    addstr(MBM_A_subbookmark[a]);
		clrtoeol();
		move(LYlines-1, 0);
		clrtoeol();
		break;
	    }