275 lines
7.3 KiB
C
275 lines
7.3 KiB
C
/*
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* $Id: inputbox.c,v 1.93 2021/01/17 16:36:37 tom Exp $
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*
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* inputbox.c -- implements the input box
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*
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* Copyright 2000-2020,2021 Thomas E. Dickey
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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 Lesser General Public License, version 2.1
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to
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* Free Software Foundation, Inc.
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* 51 Franklin St., Fifth Floor
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* Boston, MA 02110, USA.
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*
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* An earlier version of this program lists as authors:
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* Savio Lam (lam836@cs.cuhk.hk)
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*/
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#include <dlg_internals.h>
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#include <dlg_keys.h>
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#define sTEXT -1
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#define NAVIGATE_BINDINGS \
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DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_DOWN ), \
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DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), \
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DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), \
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DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), \
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DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), \
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DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_UP )
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#define BTN_HIGH 1
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#define HDR_HIGH 1
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#define MIN_HIGH (HDR_HIGH + (MARGIN * 2 + 1) + (BTN_HIGH + MARGIN * 2))
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#define MIN_WIDE 26
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/*
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* Display a dialog box for entering a string
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*/
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int
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dialog_inputbox(const char *title, const char *cprompt, int height, int width,
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const char *init, const int password)
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{
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/* *INDENT-OFF* */
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static DLG_KEYS_BINDING binding[] = {
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HELPKEY_BINDINGS,
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ENTERKEY_BINDINGS,
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NAVIGATE_BINDINGS,
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TOGGLEKEY_BINDINGS,
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END_KEYS_BINDING
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};
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static DLG_KEYS_BINDING binding2[] = {
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INPUTSTR_BINDINGS,
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HELPKEY_BINDINGS,
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ENTERKEY_BINDINGS,
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NAVIGATE_BINDINGS,
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/* no TOGGLEKEY_BINDINGS, since that includes space... */
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END_KEYS_BINDING
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};
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/* *INDENT-ON* */
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#ifdef KEY_RESIZE
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int old_height = height;
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int old_width = width;
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#endif
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int xorg, yorg;
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int x, y, box_y, box_x, box_width;
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int show_buttons;
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int col_offset = 0;
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int chr_offset = 0;
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int key, fkey, code;
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int result = DLG_EXIT_UNKNOWN;
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int state;
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bool first;
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bool edited;
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char *input;
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WINDOW *dialog;
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WINDOW *editor;
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char *prompt = dlg_strclone(cprompt);
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const char **buttons = dlg_ok_labels();
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dlg_does_output();
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DLG_TRACE(("# inputbox args:\n"));
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DLG_TRACE2S("title", title);
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DLG_TRACE2S("message", cprompt);
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DLG_TRACE2N("height", height);
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DLG_TRACE2N("width", width);
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DLG_TRACE2S("init", init);
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DLG_TRACE2N("password", password);
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dlg_tab_correct_str(prompt);
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/* Set up the initial value */
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input = dlg_set_result(init);
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edited = FALSE;
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#ifdef KEY_RESIZE
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retry:
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#endif
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show_buttons = TRUE;
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state = dialog_vars.default_button >= 0 ? dlg_default_button() : sTEXT;
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first = (state == sTEXT);
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key = fkey = 0;
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if (init != NULL) {
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dlg_auto_size(title, prompt, &height, &width, MIN_HIGH,
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MIN(MAX(dlg_count_columns(init) + 7, MIN_WIDE),
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SCOLS - (dialog_vars.begin_set ?
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dialog_vars.begin_x : 0)));
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chr_offset = (int) strlen(init);
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} else {
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dlg_auto_size(title, prompt, &height, &width, MIN_HIGH, MIN_WIDE);
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}
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dlg_button_layout(buttons, &width);
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dlg_print_size(height, width);
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dlg_ctl_size(height, width);
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xorg = dlg_box_x_ordinate(width);
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yorg = dlg_box_y_ordinate(height);
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dialog = dlg_new_window(height, width, yorg, xorg);
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dlg_register_window(dialog, "inputbox", binding);
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dlg_register_buttons(dialog, "inputbox", buttons);
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dlg_mouse_setbase(xorg, yorg);
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dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr);
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dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr);
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dlg_draw_title(dialog, title);
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dlg_attrset(dialog, dialog_attr);
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dlg_draw_helpline(dialog, FALSE);
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dlg_print_autowrap(dialog, prompt, height, width);
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/* Draw the input field box */
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box_width = width - 6;
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getyx(dialog, y, x);
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(void) x;
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box_y = y + 2;
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box_x = (width - box_width) / 2;
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dlg_mouse_mkregion(y + 1, box_x - 1, 3, box_width + 2, 'i');
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dlg_draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
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border_attr, border2_attr);
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/* Make a window for the input-field, to associate bindings */
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editor = dlg_sub_window(dialog, 1, box_width, yorg + box_y, xorg + box_x);
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dlg_register_window(editor, "inputbox2", binding2);
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if (*input != '\0') {
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dlg_show_string(editor, input, chr_offset, inputbox_attr,
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0, 0, box_width, (bool) (password != 0), first);
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wsyncup(editor);
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wcursyncup(editor);
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}
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while (result == DLG_EXIT_UNKNOWN) {
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/*
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* The last field drawn determines where the cursor is shown:
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*/
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if (show_buttons) {
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show_buttons = FALSE;
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col_offset = dlg_edit_offset(input, chr_offset, box_width);
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(void) wmove(dialog, box_y, box_x + col_offset);
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dlg_draw_buttons(dialog, height - 2, 0, buttons, state, FALSE, width);
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}
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if (!first) {
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if (*input != '\0' && !edited) {
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dlg_show_string(editor, input, chr_offset, inputbox_attr,
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0, 0, box_width, (bool) (password != 0), first);
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wmove(editor, 0, chr_offset);
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wsyncup(editor);
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wcursyncup(editor);
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}
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key = dlg_mouse_wgetch((state == sTEXT) ? editor : dialog, &fkey);
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if (dlg_result_key(key, fkey, &result)) {
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if (!dlg_button_key(result, &code, &key, &fkey))
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break;
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}
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}
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/*
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* Handle mouse clicks first, since we want to know if this is a button,
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* or something that dlg_edit_string() should handle.
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*/
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if (fkey
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&& is_DLGK_MOUSE(key)
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&& (code = dlg_ok_buttoncode(key - M_EVENT)) >= 0) {
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result = code;
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continue;
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}
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if (state == sTEXT) { /* Input box selected */
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int edit = dlg_edit_string(input, &chr_offset, key, fkey, first);
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if (edit) {
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dlg_show_string(editor, input, chr_offset, inputbox_attr,
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0, 0, box_width, (bool) (password != 0), first);
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wsyncup(editor);
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wcursyncup(editor);
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first = FALSE;
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edited = TRUE;
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continue;
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} else if (first) {
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first = FALSE;
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continue;
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}
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}
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/* handle non-functionkeys */
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if (!fkey && (code = dlg_char_to_button(key, buttons)) >= 0) {
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dlg_del_window(dialog);
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result = dlg_ok_buttoncode(code);
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continue;
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}
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/* handle functionkeys */
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if (fkey) {
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switch (key) {
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case DLGK_MOUSE('i'): /* mouse enter events */
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state = 0;
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/* FALLTHRU */
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case DLGK_FIELD_PREV:
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show_buttons = TRUE;
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state = dlg_prev_ok_buttonindex(state, sTEXT);
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break;
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case DLGK_FIELD_NEXT:
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show_buttons = TRUE;
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state = dlg_next_ok_buttonindex(state, sTEXT);
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break;
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case DLGK_TOGGLE:
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case DLGK_ENTER:
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dlg_del_window(dialog);
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result = (state >= 0) ? dlg_enter_buttoncode(state) : DLG_EXIT_OK;
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break;
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case DLGK_LEAVE:
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if (state >= 0)
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result = dlg_ok_buttoncode(state);
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break;
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#ifdef KEY_RESIZE
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case KEY_RESIZE:
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dlg_will_resize(dialog);
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/* reset data */
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height = old_height;
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width = old_width;
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/* repaint */
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_dlg_resize_cleanup(dialog);
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goto retry;
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#endif
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default:
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beep();
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break;
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}
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} else if (key > 0) {
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beep();
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}
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}
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AddLastKey();
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dlg_unregister_window(editor);
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dlg_del_window(dialog);
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dlg_mouse_free_regions();
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free(prompt);
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return result;
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}
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