hotkeys/src/utils.js

63 lines
1.7 KiB
JavaScript

const isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
// 绑定事件
function addEvent(object, event, method, useCapture) {
if (object.addEventListener) {
object.addEventListener(event, method, useCapture);
} else if (object.attachEvent) {
object.attachEvent(`on${event}`, method);
}
}
function removeEvent(object, event, method, useCapture) {
if (object.removeEventListener) {
object.removeEventListener(event, method, useCapture);
} else if (object.detachEvent) {
object.detachEvent(`on${event}`, method);
}
}
// 修饰键转换成对应的键码
function getMods(modifier, key) {
const mods = key.slice(0, key.length - 1);
for (let i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
return mods;
}
// 处理传的key字符串转换成数组
function getKeys(key) {
if (typeof key !== 'string') key = '';
key = key.replace(/\s/g, ''); // 匹配任何空白字符,包括空格、制表符、换页符等等
const keys = key.split(','); // 同时设置多个快捷键,以','分割
let index = keys.lastIndexOf('');
// 快捷键可能包含',',需特殊处理
for (; index >= 0;) {
keys[index - 1] += ',';
keys.splice(index, 1);
index = keys.lastIndexOf('');
}
return keys;
}
// 比较修饰键的数组
function compareArray(a1, a2) {
const arr1 = a1.length >= a2.length ? a1 : a2;
const arr2 = a1.length >= a2.length ? a2 : a1;
let isIndex = true;
for (let i = 0; i < arr1.length; i++) {
if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
}
return isIndex;
}
export {
isff,
getMods,
getKeys,
addEvent,
removeEvent,
compareArray,
};