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Add "delete" key support #38

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Add "delete" key support #38

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29 changes: 15 additions & 14 deletions cross.js
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Original file line number Diff line number Diff line change
Expand Up @@ -14,18 +14,19 @@
// ------------------------------------------------------------------------

const keyboard = {
"a": 65, "b": 66, "c": 67, "d": 68, "e": 69, "f": 70, "g": 71, "h": 72,
"i": 73, "j": 74, "k": 75, "l": 76, "m": 77, "n": 78, "o": 79, "p": 80,
"q": 81, "r": 82, "s": 83, "t": 84, "u": 85, "v": 86, "w": 87, "x": 88, "y": 89,
"z": 90,
"black": 190, ".": 190,
"delete": 8,
"enter": 13,
"space": 32,
"left": 37,
"up": 38,
"right": 39,
"down": 40
"a": 65, "b": 66, "c": 67, "d": 68, "e": 69, "f": 70, "g": 71, "h": 72,
"i": 73, "j": 74, "k": 75, "l": 76, "m": 77, "n": 78, "o": 79, "p": 80,
"q": 81, "r": 82, "s": 83, "t": 84, "u": 85, "v": 86, "w": 87, "x": 88, "y": 89,
"z": 90,
"black": 190, ".": 190,
"delete": 8,
"deleteForward": 46,
"enter": 13,
"space": 32,
"left": 37,
"up": 38,
"right": 39,
"down": 40
};
const BLACK = ".";
const DASH = "-";
Expand Down Expand Up @@ -377,15 +378,15 @@ function keyboardHandler(e) {
if (e.which == keyboard.enter) {
current.direction = (current.direction == ACROSS) ? DOWN : ACROSS;
}
if (e.which == keyboard.delete) {
if (e.which == keyboard.delete || e.which == keyboard.deleteForward) {
e.preventDefault();
let oldContent = xw.fill[current.row][current.col];
xw.fill[current.row] = xw.fill[current.row].slice(0, current.col) + BLANK + xw.fill[current.row].slice(current.col + 1);
if (oldContent == BLACK) {
if (isSymmetrical) {
xw.fill[symRow] = xw.fill[symRow].slice(0, symCol) + BLANK + xw.fill[symRow].slice(symCol + 1);
}
} else { // move the cursor
} else if (e.which == keyboard.delete) { // move the cursor
e = new Event('keydown');
if (current.direction == ACROSS) {
e.which = keyboard.left;
Expand Down