js: Quicker keyboard access to menu items

Now pressing "1" to "9" or "0" activate the first ten items of the
current menu, to save so much pressing of the arrow keys.  There isn't
any visible indication of this, so it's a bit of an Easter egg.
This commit is contained in:
Ben Harris
2023-01-02 00:16:07 +00:00
parent b8e9bfa7f6
commit b0203e8f72

View File

@ -476,7 +476,9 @@ function initPuzzle() {
} }
// Keyboard handlers for the menus. // Keyboard handlers for the menus.
function menukey(event) { function menukey(event) {
var thisitem = event.target.closest("li"); var target = event.target;
var key = event.key;
var thisitem = target.closest("li");
var thismenu = thisitem.closest("ul"); var thismenu = thisitem.closest("ul");
var targetitem = null; var targetitem = null;
var parentitem; var parentitem;
@ -490,19 +492,30 @@ function initPuzzle() {
} }
if (dlg_dimmer !== null) if (dlg_dimmer !== null)
return; return;
if (["1", "2", "3", "4", "5", "6", "7", "8", "9", "0"]
.includes(key)) {
var shortcutitem = thismenu.querySelectorAll(
":scope > li:not([role='separator']")[(Number(key) + 9) % 10];
if (shortcutitem) {
target = shortcutitem.firstElementChild;
target.focus();
thisitem = target.closest("li");
key = "Enter";
}
}
if (!["ArrowLeft", "ArrowRight", "ArrowUp", "ArrowDown", "Enter", if (!["ArrowLeft", "ArrowRight", "ArrowUp", "ArrowDown", "Enter",
"Escape", "Backspace", "SoftRight", "F10"] "Escape", "Backspace", "SoftRight", "F10"]
.includes(event.key)) .includes(key))
return; return;
if (ishorizontal(thismenu)) { if (ishorizontal(thismenu)) {
// Top-level menu bar. // Top-level menu bar.
if (event.key == "ArrowLeft") if (key == "ArrowLeft")
targetitem = prevmenuitem(thisitem) || lastmenuitem(thismenu); targetitem = prevmenuitem(thisitem) || lastmenuitem(thismenu);
else if (event.key == "ArrowRight") else if (key == "ArrowRight")
targetitem = nextmenuitem(thisitem) || firstmenuitem(thismenu); targetitem = nextmenuitem(thisitem) || firstmenuitem(thismenu);
else if (event.key == "ArrowUp") else if (key == "ArrowUp")
targetitem = lastmenuitem(thisitem.querySelector("ul")); targetitem = lastmenuitem(thisitem.querySelector("ul"));
else if (event.key == "ArrowDown" || event.key == "Enter") else if (key == "ArrowDown" || key == "Enter")
targetitem = firstmenuitem(thisitem.querySelector("ul")); targetitem = firstmenuitem(thisitem.querySelector("ul"));
} else { } else {
// Ordinary vertical menu. // Ordinary vertical menu.
@ -513,29 +526,29 @@ function initPuzzle() {
else else
parentitem_sideways = parentitem; parentitem_sideways = parentitem;
} }
if (event.key == "ArrowUp") if (key == "ArrowUp")
targetitem = prevmenuitem(thisitem) || parentitem_up || targetitem = prevmenuitem(thisitem) || parentitem_up ||
lastmenuitem(thismenu); lastmenuitem(thismenu);
else if (event.key == "ArrowDown") else if (key == "ArrowDown")
targetitem = nextmenuitem(thisitem) || parentitem_up || targetitem = nextmenuitem(thisitem) || parentitem_up ||
firstmenuitem(thismenu); firstmenuitem(thismenu);
else if (event.key == "ArrowRight") else if (key == "ArrowRight")
targetitem = thisitem.querySelector("li") || targetitem = thisitem.querySelector("li") ||
(parentitem_up && nextmenuitem(parentitem_up)); (parentitem_up && nextmenuitem(parentitem_up));
else if (event.key == "Enter") else if (key == "Enter")
targetitem = thisitem.querySelector("li"); targetitem = thisitem.querySelector("li");
else if (event.key == "ArrowLeft") else if (key == "ArrowLeft")
targetitem = parentitem_sideways || targetitem = parentitem_sideways ||
(parentitem_up && prevmenuitem(parentitem_up)); (parentitem_up && prevmenuitem(parentitem_up));
else if (event.key == "Backspace") else if (key == "Backspace")
targetitem = parentitem; targetitem = parentitem;
} }
if (targetitem) if (targetitem)
targetitem.firstElementChild.focus(); targetitem.firstElementChild.focus();
else if (event.key == "Enter") else if (key == "Enter")
event.target.click(); target.click();
else if (event.key == "Escape" || event.key == "SoftRight" || else if (key == "Escape" || key == "SoftRight" ||
event.key == "F10" || event.key == "Backspace") key == "F10" || key == "Backspace")
// Leave the menu entirely. // Leave the menu entirely.
onscreen_canvas.focus(); onscreen_canvas.focus();
// Prevent default even if we didn't do anything, as long as this // Prevent default even if we didn't do anything, as long as this