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/**!
* hotkeys-js v3.13.7
* A simple micro-library for defining and dispatching keyboard shortcuts.
It has no dependencies.
*
* Copyright (c) 2024 kenny wong <wowohoo@qq.com>
* https://github.com/jaywcjlove/hotkeys-js.git
*
* @website: https://jaywcjlove.github.io/hotkeys-js
* Licensed under the MIT license
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !==
'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ?
define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis :
global || self, global.hotkeys = factory());
})(this, (function () { 'use strict';
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".concat(event), method);
}
}
function removeEvent(object, event, method, useCapture) {
if (object.removeEventListener) {
object.removeEventListener(event, method, useCapture);
} else if (object.detachEvent) {
object.detachEvent("on".concat(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;
}
// Special Keys
const _keyMap = {
backspace: 8,
'⌫': 8,
tab: 9,
clear: 12,
enter: 13,
'↩': 13,
return: 13,
esc: 27,
escape: 27,
space: 32,
left: 37,
up: 38,
right: 39,
down: 40,
del: 46,
delete: 46,
ins: 45,
insert: 45,
home: 36,
end: 35,
pageup: 33,
pagedown: 34,
capslock: 20,
num_0: 96,
num_1: 97,
num_2: 98,
num_3: 99,
num_4: 100,
num_5: 101,
num_6: 102,
num_7: 103,
num_8: 104,
num_9: 105,
num_multiply: 106,
num_add: 107,
num_enter: 108,
num_subtract: 109,
num_decimal: 110,
num_divide: 111,
'⇪': 20,
',': 188,
'.': 190,
'/': 191,
'`': 192,
'-': isff ? 173 : 189,
'=': isff ? 61 : 187,
';': isff ? 59 : 186,
'\'': 222,
'[': 219,
']': 221,
'\\': 220
};
// Modifier Keys
const _modifier = {
// shiftKey
'⇧': 16,
shift: 16,
// altKey
'⌥': 18,
alt: 18,
option: 18,
// ctrlKey
'⌃': 17,
ctrl: 17,
control: 17,
// metaKey
'⌘': 91,
cmd: 91,
command: 91
};
const modifierMap = {
16: 'shiftKey',
18: 'altKey',
17: 'ctrlKey',
91: 'metaKey',
shiftKey: 16,
ctrlKey: 17,
altKey: 18,
metaKey: 91
};
const _mods = {
16: false,
18: false,
17: false,
91: false
};
const _handlers = {};
// F1~F12 special key
for (let k = 1; k < 20; k++) {
_keyMap["f".concat(k)] = 111 + k;
}
let _downKeys = []; // 记录摁下的绑定键
let winListendFocus = null; // window是否已经监听了focus事件
let _scope = 'all'; // 默认热键范围
const elementEventMap = new Map(); // 已绑定事件的节点记录
// 返回键码
const code = x => _keyMap[x.toLowerCase()] ||
_modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
const getKey = x => Object.keys(_keyMap).find(k => _keyMap[k] ===
x);
const getModifier = x => Object.keys(_modifier).find(k =>
_modifier[k] === x);
// 设置获取当前范围（默认为'所有'）
function setScope(scope) {
_scope = scope || 'all';
}
// 获取当前范围
function getScope() {
return _scope || 'all';
}
// 获取摁下绑定键的键值
function getPressedKeyCodes() {
return _downKeys.slice(0);
}
function getPressedKeyString() {
return _downKeys.map(c => getKey(c) || getModifier(c) ||
String.fromCharCode(c));
}
function getAllKeyCodes() {
const result = [];
Object.keys(_handlers).forEach(k => {
_handlers[k].forEach(_ref => {
let {
key,
scope,
mods,
shortcut
} = _ref;
result.push({
scope,
shortcut,
mods,
keys: key.split('+').map(v => code(v))
});
});
});
return result;
}
// 表单控件控件判断 返回 Boolean
// hotkey is effective only when filter return true
function filter(event) {
const target = event.target || event.srcElement;
const {
tagName
} = target;
let flag = true;
const isInput = tagName === 'INPUT' &&
!['checkbox', 'radio', 'range',
'button', 'file', 'reset',
'submit', 'color'].includes(target.type);
// ignore: isContentEditable === 'true', <input> and
<textarea> when readOnly state is false, <select>
if (target.isContentEditable || (isInput || tagName ===
'TEXTAREA' || tagName === 'SELECT') &&
!target.readOnly) {
flag = false;
}
return flag;
}
// 判断摁下的键是否为某个键，返回true或者false
function isPressed(keyCode) {
if (typeof keyCode === 'string') {
keyCode = code(keyCode); // 转换成键码
}
return _downKeys.indexOf(keyCode) !== -1;
}
// 循环删除handlers中的所有 scope(范围)
function deleteScope(scope, newScope) {
let handlers;
let i;
// 没有指定scope，获取scope
if (!scope) scope = getScope();
for (const key in _handlers) {
if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
handlers = _handlers[key];
for (i = 0; i < handlers.length;) {
if (handlers[i].scope === scope) {
const deleteItems = handlers.splice(i, 1);
deleteItems.forEach(_ref2 => {
let {
element
} = _ref2;
return removeKeyEvent(element);
});
} else {
i++;
}
}
}
}
// 如果scope被删除，将scope重置为all
if (getScope() === scope) setScope(newScope || 'all');
}
// 清除修饰键
function clearModifier(event) {
let key = event.keyCode || event.which || event.charCode;
const i = _downKeys.indexOf(key);
// 从列表中清除按压过的键
if (i >= 0) {
_downKeys.splice(i, 1);
}
// 特殊处理 cmmand 键，在 cmmand 组合快捷键 keyup
只执行一次的问题
if (event.key && event.key.toLowerCase() === 'meta')
{
_downKeys.splice(0, _downKeys.length);
}
// 修饰键 shiftKey altKey ctrlKey (command||metaKey) 清除
if (key === 93 || key === 224) key = 91;
if (key in _mods) {
_mods[key] = false;
// 将修饰键重置为false
for (const k in _modifier) if (_modifier[k] === key) hotkeys[k] =
false;
}
}
function unbind(keysInfo) {
// unbind(), unbind all keys
if (typeof keysInfo === 'undefined') {
Object.keys(_handlers).forEach(key => {
Array.isArray(_handlers[key]) &&
_handlers[key].forEach(info => eachUnbind(info));
delete _handlers[key];
});
removeKeyEvent(null);
} else if (Array.isArray(keysInfo)) {
// support like : unbind([{key: 'ctrl+a', scope:
's1'}, {key: 'ctrl-a', scope: 's2', splitKey:
'-'}])
keysInfo.forEach(info => {
if (info.key) eachUnbind(info);
});
} else if (typeof keysInfo === 'object') {
// support like unbind({key: 'ctrl+a, ctrl+b',
scope:'abc'})
if (keysInfo.key) eachUnbind(keysInfo);
} else if (typeof keysInfo === 'string') {
for (var _len = arguments.length, args = new Array(_len > 1 ? _len
- 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
// support old method
// eslint-disable-line
let [scope, method] = args;
if (typeof scope === 'function') {
method = scope;
scope = '';
}
eachUnbind({
key: keysInfo,
scope,
method,
splitKey: '+'
});
}
}
// 解除绑定某个范围的快捷键
const eachUnbind = _ref3 => {
let {
key,
scope,
method,
splitKey = '+'
} = _ref3;
const multipleKeys = getKeys(key);
multipleKeys.forEach(originKey => {
const unbindKeys = originKey.split(splitKey);
const len = unbindKeys.length;
const lastKey = unbindKeys[len - 1];
const keyCode = lastKey === '*' ? '*' :
code(lastKey);
if (!_handlers[keyCode]) return;
// 判断是否传入范围，没有就获取范围
if (!scope) scope = getScope();
const mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
const unbindElements = [];
_handlers[keyCode] = _handlers[keyCode].filter(record => {
//
通过函数判断，是否解除绑定，函数相等直接返回
const isMatchingMethod = method ? record.method === method : true;
const isUnbind = isMatchingMethod && record.scope === scope
&& compareArray(record.mods, mods);
if (isUnbind) unbindElements.push(record.element);
return !isUnbind;
});
unbindElements.forEach(element => removeKeyEvent(element));
});
};
// 对监听对应快捷键的回调函数进行处理
function eventHandler(event, handler, scope, element) {
if (handler.element !== element) {
return;
}
let modifiersMatch;
// 看它是否在当前范围
if (handler.scope === scope || handler.scope === 'all') {
// 检查是否匹配修饰符（如果有返回true）
modifiersMatch = handler.mods.length > 0;
for (const y in _mods) {
if (Object.prototype.hasOwnProperty.call(_mods, y)) {
if (!_mods[y] && handler.mods.indexOf(+y) > -1 ||
_mods[y] && handler.mods.indexOf(+y) === -1) {
modifiersMatch = false;
}
}
}
// 调用处理程序，如果是修饰键不做处理
if (handler.mods.length === 0 && !_mods[16] &&
!_mods[18] && !_mods[17] && !_mods[91] || modifiersMatch ||
handler.shortcut === '*') {
handler.keys = [];
handler.keys = handler.keys.concat(_downKeys);
if (handler.method(event, handler) === false) {
if (event.preventDefault) event.preventDefault();else
event.returnValue = false;
if (event.stopPropagation) event.stopPropagation();
if (event.cancelBubble) event.cancelBubble = true;
}
}
}
}
// 处理keydown事件
function dispatch(event, element) {
const asterisk = _handlers['*'];
let key = event.keyCode || event.which || event.charCode;
// 表单控件过滤 默认表单控件不触发快捷键
if (!hotkeys.filter.call(this, event)) return;
// Gecko(Firefox)的command键值224，在Webkit(Chrome)中保持一致
// Webkit左右 command 键值不一样
if (key === 93 || key === 224) key = 91;
/**
* Collect bound keys
* If an Input Method Editor is processing key input and the event is
keydown, return 229.
*
https://stackoverflow.com/questions/25043934/is-it-ok-to-ignore-keydown-events-with-keycode-229
*
http://lists.w3.org/Archives/Public/www-dom/2010JulSep/att-0182/keyCode-spec.html
*/
if (_downKeys.indexOf(key) === -1 && key !== 229)
_downKeys.push(key);
/**
* Jest test cases are required.
* ===============================
*/
['ctrlKey', 'altKey', 'shiftKey',
'metaKey'].forEach(keyName => {
const keyNum = modifierMap[keyName];
if (event[keyName] && _downKeys.indexOf(keyNum) === -1) {
_downKeys.push(keyNum);
} else if (!event[keyName] && _downKeys.indexOf(keyNum) >
-1) {
_downKeys.splice(_downKeys.indexOf(keyNum), 1);
} else if (keyName === 'metaKey' && event[keyName]
&& _downKeys.length === 3) {
/**
* Fix if Command is pressed:
* ===============================
*/
if (!(event.ctrlKey || event.shiftKey || event.altKey)) {
_downKeys = _downKeys.slice(_downKeys.indexOf(keyNum));
}
}
});
/**
* -------------------------------
*/
if (key in _mods) {
_mods[key] = true;
// 将特殊字符的key注册到 hotkeys 上
for (const k in _modifier) {
if (_modifier[k] === key) hotkeys[k] = true;
}
if (!asterisk) return;
}
// 将 modifierMap 里面的修饰键绑定到 event 中
for (const e in _mods) {
if (Object.prototype.hasOwnProperty.call(_mods, e)) {
_mods[e] = event[modifierMap[e]];
}
}
/**
* https://github.com/jaywcjlove/hotkeys/pull/129
* This solves the issue in Firefox on Windows where hotkeys
corresponding to special characters would not trigger.
* An example of this is ctrl+alt+m on a Swedish keyboard which is used
to type μ.
* Browser support:
https://caniuse.com/#feat=keyboardevent-getmodifierstate
*/
if (event.getModifierState && !(event.altKey &&
!event.ctrlKey) && event.getModifierState('AltGraph')) {
if (_downKeys.indexOf(17) === -1) {
_downKeys.push(17);
}
if (_downKeys.indexOf(18) === -1) {
_downKeys.push(18);
}
_mods[17] = true;
_mods[18] = true;
}
// 获取范围 默认为 `all`
const scope = getScope();
// 对任何快捷键都需要做的处理
if (asterisk) {
for (let i = 0; i < asterisk.length; i++) {
if (asterisk[i].scope === scope && (event.type ===
'keydown' && asterisk[i].keydown || event.type ===
'keyup' && asterisk[i].keyup)) {
eventHandler(event, asterisk[i], scope, element);
}
}
}
// key 不在 _handlers 中返回
if (!(key in _handlers)) return;
const handlerKey = _handlers[key];
const keyLen = handlerKey.length;
for (let i = 0; i < keyLen; i++) {
if (event.type === 'keydown' &&
handlerKey[i].keydown || event.type === 'keyup' &&
handlerKey[i].keyup) {
if (handlerKey[i].key) {
const record = handlerKey[i];
const {
splitKey
} = record;
const keyShortcut = record.key.split(splitKey);
const _downKeysCurrent = []; // 记录当前按键键值
for (let a = 0; a < keyShortcut.length; a++) {
_downKeysCurrent.push(code(keyShortcut[a]));
}
if (_downKeysCurrent.sort().join('') ===
_downKeys.sort().join('')) {
// 找到处理内容
eventHandler(event, record, scope, element);
}
}
}
}
}
function hotkeys(key, option, method) {
_downKeys = [];
const keys = getKeys(key); // 需要处理的快捷键列表
let mods = [];
let scope = 'all'; //
scope默认为all，所有范围都有效
let element = document; // 快捷键事件绑定节点
let i = 0;
let keyup = false;
let keydown = true;
let splitKey = '+';
let capture = false;
let single = false; // 单个callback
// 对为设定范围的判断
if (method === undefined && typeof option ===
'function') {
method = option;
}
if (Object.prototype.toString.call(option) === '[object
Object]') {
if (option.scope) scope = option.scope; // eslint-disable-line
if (option.element) element = option.element; // eslint-disable-line
if (option.keyup) keyup = option.keyup; // eslint-disable-line
if (option.keydown !== undefined) keydown = option.keydown; //
eslint-disable-line
if (option.capture !== undefined) capture = option.capture; //
eslint-disable-line
if (typeof option.splitKey === 'string') splitKey =
option.splitKey; // eslint-disable-line
if (option.single === true) single = true; // eslint-disable-line
}
if (typeof option === 'string') scope = option;
// 如果只允许单个callback，先unbind
if (single) unbind(key, scope);
// 对于每个快捷键进行处理
for (; i < keys.length; i++) {
key = keys[i].split(splitKey); // 按键列表
mods = [];
// 如果是组合快捷键取得组合快捷键
if (key.length > 1) mods = getMods(_modifier, key);
// 将非修饰键转化为键码
key = key[key.length - 1];
key = key === '*' ? '*' : code(key); //
*表示匹配所有快捷键
// 判断key是否在_handlers中，不在就赋一个空数组
if (!(key in _handlers)) _handlers[key] = [];
_handlers[key].push({
keyup,
keydown,
scope,
mods,
shortcut: keys[i],
method,
key: keys[i],
splitKey,
element
});
}
// 在全局document上设置快捷键
if (typeof element !== 'undefined' && window) {
if (!elementEventMap.has(element)) {
const keydownListener = function () {
let event = arguments.length > 0 && arguments[0] !==
undefined ? arguments[0] : window.event;
return dispatch(event, element);
};
const keyupListenr = function () {
let event = arguments.length > 0 && arguments[0] !==
undefined ? arguments[0] : window.event;
dispatch(event, element);
clearModifier(event);
};
elementEventMap.set(element, {
keydownListener,
keyupListenr,
capture
});
addEvent(element, 'keydown', keydownListener, capture);
addEvent(element, 'keyup', keyupListenr, capture);
}
if (!winListendFocus) {
const listener = () => {
_downKeys = [];
};
winListendFocus = {
listener,
capture
};
addEvent(window, 'focus', listener, capture);
}
}
}
function trigger(shortcut) {
let scope = arguments.length > 1 && arguments[1] !==
undefined ? arguments[1] : 'all';
Object.keys(_handlers).forEach(key => {
const dataList = _handlers[key].filter(item => item.scope ===
scope && item.shortcut === shortcut);
dataList.forEach(data => {
if (data && data.method) {
data.method();
}
});
});
}
//
销毁事件,unbind之后判断element上是否还有键盘快捷键，如果没有移除监听
function removeKeyEvent(element) {
const values = Object.values(_handlers).flat();
const findindex = values.findIndex(_ref4 => {
let {
element: el
} = _ref4;
return el === element;
});
if (findindex < 0) {
const {
keydownListener,
keyupListenr,
capture
} = elementEventMap.get(element) || {};
if (keydownListener && keyupListenr) {
removeEvent(element, 'keyup', keyupListenr, capture);
removeEvent(element, 'keydown', keydownListener,
capture);
elementEventMap.delete(element);
}
}
if (values.length <= 0 || elementEventMap.size <= 0) {
// 移除所有的元素上的监听
const eventKeys = Object.keys(elementEventMap);
eventKeys.forEach(el => {
const {
keydownListener,
keyupListenr,
capture
} = elementEventMap.get(el) || {};
if (keydownListener && keyupListenr) {
removeEvent(el, 'keyup', keyupListenr, capture);
removeEvent(el, 'keydown', keydownListener, capture);
elementEventMap.delete(el);
}
});
// 清空 elementEventMap
elementEventMap.clear();
// 清空 _handlers
Object.keys(_handlers).forEach(key => delete _handlers[key]);
// 移除window上的focus监听
if (winListendFocus) {
const {
listener,
capture
} = winListendFocus;
removeEvent(window, 'focus', listener, capture);
winListendFocus = null;
}
}
}
const _api = {
getPressedKeyString,
setScope,
getScope,
deleteScope,
getPressedKeyCodes,
getAllKeyCodes,
isPressed,
filter,
trigger,
unbind,
keyMap: _keyMap,
modifier: _modifier,
modifierMap
};
for (const a in _api) {
if (Object.prototype.hasOwnProperty.call(_api, a)) {
hotkeys[a] = _api[a];
}
}
if (typeof window !== 'undefined') {
const _hotkeys = window.hotkeys;
hotkeys.noConflict = deep => {
if (deep && window.hotkeys === hotkeys) {
window.hotkeys = _hotkeys;
}
return hotkeys;
};
window.hotkeys = hotkeys;
}
return hotkeys;
}));