You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1.1 KiB
41 lines
1.1 KiB
var Emitter = require('./Emitter');
|
|
var keyCode = require('./keyCode');
|
|
var each = require('./each');
|
|
var unique = require('./unique');
|
|
var trim = require('./trim');
|
|
var map = require('./map');
|
|
exports = {
|
|
on: function(keys, listener) {
|
|
keys = keys.split(regComma);
|
|
each(keys, function(key) {
|
|
emitter.on(normalizeKey(key), listener);
|
|
});
|
|
},
|
|
off: function(keys, listener) {
|
|
keys = keys.split(regComma);
|
|
each(keys, function(key) {
|
|
emitter.off(normalizeKey(key), listener);
|
|
});
|
|
}
|
|
};
|
|
var emitter = new Emitter();
|
|
document.addEventListener('keydown', function(e) {
|
|
var keys = [];
|
|
if (e.ctrlKey) keys.push('ctrl');
|
|
if (e.shiftKey) keys.push('shift');
|
|
keys.push(keyCode(e.keyCode));
|
|
emitter.emit(normalizeKey(keys.join('+')), e);
|
|
});
|
|
function normalizeKey(keyStr) {
|
|
var keys = keyStr.split(regPlus);
|
|
keys = map(keys, function(key) {
|
|
return trim(key);
|
|
});
|
|
keys = unique(keys);
|
|
keys.sort();
|
|
return keys.join('+');
|
|
}
|
|
var regComma = /,/g;
|
|
var regPlus = /\+/g;
|
|
|
|
module.exports = exports;
|
|
|