first working version - nasty, but mostly works

1 files changed, 101 insertions, 0 deletions

diff --git a/src/hci/mucurses/kb.c b/src/hci/mucurses/kb.c
new file mode 100644
index 000000000..48de14cb9
--- /dev/null
+++ b/src/hci/mucurses/kb.c
@@ -0,0 +1,101 @@
+#include <curses.h>
+#include <stddef.h>
+#include "core.h"
+
+/** @file
+ *
+ * MuCurses keyboard input handling functions
+ */
+
+#define INPUT_BUFFER_LEN 80
+
+bool echo_on = FALSE;
+bool delay = FALSE;
+
+/**
+ *
+ */
+int has_key ( int ch ) {
+	return TRUE;
+}
+
+/**
+ * Push a character back onto the FIFO
+ *
+ * @v ch	char to push to head of input stream
+ * @ret rc	return status code
+ */
+int ungetch ( int ch ) {
+	stdscr->scr->pushc( stdscr->scr, ch );
+	return OK;
+}
+
+/**
+ * Pop a character from the FIFO into a window
+ *
+ * @v *win	window in which to echo input
+ * @ret ch	char from input stream
+ */
+int wgetch ( WINDOW *win ) {
+	int ch;
+	if ( win == NULL )
+		return ERR;
+
+	ch = win->scr->popc( win->scr );
+
+	if ( echo_on ) {
+		if ( ch == KEY_LEFT || ch == KEY_BACKSPACE ) {
+			if ( win->curs_x == 0 ) {
+				wmove( win, --(win->curs_y), win->width - 1 );
+				wdelch( win );
+			} else {
+				wmove( win, win->curs_y, --(win->curs_x) );
+				wdelch( win );
+			}
+		} else if ( ch >= 0401 && ch <= 0633 ) {
+			beep();
+		} else {
+			_wputch( win, (chtype)( ch | win->attrs ), WRAP );
+		}
+	}
+
+	return ch;
+}
+
+/**
+ * Read at most n characters from the FIFO into a window
+ *
+ * @v *win	window in which to echo input
+ * @v *str	pointer to string in which to store result
+ */
+int wgetnstr ( WINDOW *win, char *str, int n ) {
+	char *str_start;
+	int c;
+
+	if ( n < 0 )
+		return ERR;
+
+	str_start = str;
+
+	for ( ; ( c = wgetch(win) ) && n; n-- ) {
+		if ( n == 1 ) { // last character must be a newline...
+			if ( c == '\n' ) {
+				*str = '\0';
+			} else { // ...otherwise beep and wait for one
+				beep();
+				++n;
+				continue;
+			}
+		} else if ( c == '\n' ) {
+			*str = '\0';
+			break;
+		} else {
+			if ( c == KEY_LEFT || c == KEY_BACKSPACE ) {
+				if ( ! ( str == str_start ) )
+					str--;
+			} else { *str = c; str++; }
+		}
+	}
+
+	return OK;
+}