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Commit 87727d45 authored by Wang YanQing's avatar Wang YanQing Committed by Yann E. MORIN
Browse files

menuconfig:inputbox: support navigate input position 



This patch add support navigate input position *inside* the input
field with LEFT/RIGHT, so it is possible to modify the text in place.

Signed-off-by: default avatarWang YanQing <udknight@gmail.com>
Tested-by: default avatar"Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: default avatar"Yann E. MORIN" <yann.morin.1998@free.fr>
parent 16974326

scripts/kconfig/lxdialog/inputbox.c

+92 −29
Original line number Original line Diff line number Diff line
@@ -45,7 +45,8 @@ int dialog_inputbox(const char *title, const char *prompt, int height, int width 
                    const char *init)

                    const char *init)

{

{

	int i, x, y, box_y, box_x, box_width;

	int i, x, y, box_y, box_x, box_width;

	int input_x = 0, scroll = 0, key = 0, button = -1;

	int input_x = 0, key = 0, button = -1;

	int show_x, len, pos;

	char *instr = dialog_input_result;

	char *instr = dialog_input_result;

	WINDOW *dialog;

	WINDOW *dialog;
@@ -97,14 +98,17 @@ do_resize: 
	wmove(dialog, box_y, box_x);

	wmove(dialog, box_y, box_x);

	wattrset(dialog, dlg.inputbox.atr);

	wattrset(dialog, dlg.inputbox.atr);





	input_x = strlen(instr);

	len = strlen(instr);

	pos = len;





	if (input_x >= box_width) {

	if (len >= box_width) {

		scroll = input_x - box_width + 1;

		show_x = len - box_width + 1;

		input_x = box_width - 1;

		input_x = box_width - 1;

		for (i = 0; i < box_width - 1; i++)

		for (i = 0; i < box_width - 1; i++)

			waddch(dialog, instr[scroll + i]);

			waddch(dialog, instr[show_x + i]);

	} else {

	} else {

		show_x = 0;

		input_x = len;

		waddstr(dialog, instr);

		waddstr(dialog, instr);

	}

	}
@@ -121,45 +125,104 @@ do_resize: 
			case KEY_UP:

			case KEY_UP:

			case KEY_DOWN:

			case KEY_DOWN:

				break;

				break;

			case KEY_LEFT:

				continue;

			case KEY_RIGHT:

				continue;

			case KEY_BACKSPACE:

			case KEY_BACKSPACE:

			case 127:

			case 127:

				if (input_x || scroll) {

				if (pos) {

					wattrset(dialog, dlg.inputbox.atr);

					wattrset(dialog, dlg.inputbox.atr);

					if (!input_x) {

					if (input_x == 0) {

						scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1);

						show_x--;

						wmove(dialog, box_y, box_x);

						for (i = 0; i < box_width; i++)

							waddch(dialog,

							       instr[scroll + input_x + i] ?

							       instr[scroll + input_x + i] : ' ');

						input_x = strlen(instr) - scroll;

					} else

					} else

						input_x--;

						input_x--;

					instr[scroll + input_x] = '\0';



					mvwaddch(dialog, box_y, input_x + box_x, ' ');

					if (pos < len) {

						for (i = pos - 1; i < len; i++) {

							instr[i] = instr[i+1];

						}

					}



					pos--;

					len--;

					instr[len] = '\0';

					wmove(dialog, box_y, box_x);

					for (i = 0; i < box_width; i++) {

						if (!instr[show_x + i]) {

							waddch(dialog, ' ');

							break;

						}

						waddch(dialog, instr[show_x + i]);

					}

					wmove(dialog, box_y, input_x + box_x);

					wmove(dialog, box_y, input_x + box_x);

					wrefresh(dialog);

					wrefresh(dialog);

				}

				}

				continue;

				continue;

			case KEY_LEFT:

				if (pos > 0) {

					if (input_x > 0) {

						wmove(dialog, box_y, --input_x + box_x);

					} else if (input_x == 0) {

						show_x--;

						wmove(dialog, box_y, box_x);

						for (i = 0; i < box_width; i++) {

							if (!instr[show_x + i]) {

								waddch(dialog, ' ');

								break;

							}

							waddch(dialog, instr[show_x + i]);

						}

						wmove(dialog, box_y, box_x);

					}

					pos--;

				}

				continue;

			case KEY_RIGHT:

				if (pos < len) {

					if (input_x < box_width - 1) {

						wmove(dialog, box_y, ++input_x + box_x);

					} else if (input_x == box_width - 1) {

						show_x++;

						wmove(dialog, box_y, box_x);

						for (i = 0; i < box_width; i++) {

							if (!instr[show_x + i]) {

								waddch(dialog, ' ');

								break;

							}

							waddch(dialog, instr[show_x + i]);

						}

						wmove(dialog, box_y, input_x + box_x);

					}

					pos++;

				}

				continue;

			default:

			default:

				if (key < 0x100 && isprint(key)) {

				if (key < 0x100 && isprint(key)) {

					if (scroll + input_x < MAX_LEN) {

					if (len < MAX_LEN) {

						wattrset(dialog, dlg.inputbox.atr);

						wattrset(dialog, dlg.inputbox.atr);

						instr[scroll + input_x] = key;

						if (pos < len) {

						instr[scroll + input_x + 1] = '\0';

							for (i = len; i > pos; i--)

								instr[i] = instr[i-1];

							instr[pos] = key;

						} else {

							instr[len] = key;

						}

						pos++;

						len++;

						instr[len] = '\0';



						if (input_x == box_width - 1) {

						if (input_x == box_width - 1) {

							scroll++;

							show_x++;

							wmove(dialog, box_y, box_x);

							for (i = 0; i < box_width - 1; i++)

								waddch(dialog, instr [scroll + i]);

						} else {

						} else {

							wmove(dialog, box_y, input_x++ + box_x);

							input_x++;

							waddch(dialog, key);

						}



						wmove(dialog, box_y, box_x);

						for (i = 0; i < box_width; i++) {

							if (!instr[show_x + i]) {

								waddch(dialog, ' ');

								break;

							}

							}

							waddch(dialog, instr[show_x + i]);

						}

						wmove(dialog, box_y, input_x + box_x);

						wrefresh(dialog);

						wrefresh(dialog);

					} else

					} else

						flash();	/* Alarm user about overflow */

						flash();	/* Alarm user about overflow */