keys[keylabels[i].innerHTML] = keylabels[i].parentNode;
}
var input = e.charCode || e.keyCode;
+
+ // find key element matching input
for (var i = 0; i < keylabels.length; i++) {
var key = keylabels[i].parentNode;
- if (!key.onclick) continue;
+ if (!key.onclick) continue; // link
var keychar = key.className.match(/ chr(\d+)$/);
- if (!keychar) continue; // not enterable
+ if (!keychar) continue; // has code
keychar = keychar[1];
- if (keychar != input) continue; // different key
+ if (keychar != input) continue; // matches code
+
+ // match mode (visibility)
var row = key.parentNode;
+ var shown = row.style.display != 'none';
+ if (!shown) continue;
+
+ // match key modifiers
var keymod = row.className;
- if ((keymod.search(/\bctrl\b/) != -1) != e.ctrlKey) continue; // modifier mismatch
+ if ((keymod.search(/\bctrl\b/) != -1) != e.ctrlKey) continue;
if ((keymod.search(/\bmeta\b/) != -1) != e.altKey) continue;
- var shown = row.style.display != 'none';
- if (!shown) continue; // foreign mode
+
+ // select
if (keyfocus) keyfocus.style.outline = '';
key.style.outline = '1px solid red';
keyfocus = key;