npm hotkeys-js
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// ==UserScript==
// @name hotkeys-js
// @namespace https://www.npmjs.com/package/hotkeys-js
// @version 3.8.7
// ==/UserScript==
/*!
* hotkeys-js v3.8.7
* A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.
*
* Copyright (c) 2021 kenny wong <wowohoo@qq.com>
* http://jaywcjlove.github.io/hotkeys
*
* 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';
var isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false; // 绑定事件
function addEvent(object, event, method) {
if (object.addEventListener) {
object.addEventListener(event, method, false);
} else if (object.attachEvent) {
object.attachEvent("on".concat(event), function () {
method(window.event);
});
}
} // 修饰键转换成对应的键码
function getMods(modifier, key) {
var mods = key.slice(0, key.length - 1);
for (var 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
var keys = key.split(','); // 同时设置多个快捷键，以','分割
var 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) {
var arr1 = a1.length >= a2.length ? a1 : a2;
var arr2 = a1.length >= a2.length ? a2 : a1;
var isIndex = true;
for (var i = 0; i < arr1.length; i++) {
if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
}
return isIndex;
}
var _keyMap = {
backspace: 8,
tab: 9,
clear: 12,
enter: 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
var _modifier = {
// shiftKey
'⇧': 16,
shift: 16,
// altKey
'⌥': 18,
alt: 18,
option: 18,
// ctrlKey
'⌃': 17,
ctrl: 17,
control: 17,
// metaKey
'⌘': 91,
cmd: 91,
command: 91
};
var modifierMap = {
16: 'shiftKey',
18: 'altKey',
17: 'ctrlKey',
91: 'metaKey',
shiftKey: 16,
ctrlKey: 17,
altKey: 18,
metaKey: 91
};
var _mods = {
16: false,
18: false,
17: false,
91: false
};
var _handlers = {}; // F1~F12 special key
for (var k = 1; k < 20; k++) {
_keyMap["f".concat(k)] = 111 + k;
}
var _downKeys = []; // 记录摁下的绑定键
var _scope = 'all'; // 默认热键范围
var elementHasBindEvent = []; // 已绑定事件的节点记录
// 返回键码
var code = function code(x) {
return _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
}; // 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);
} // 表单控件控件判断 返回 Boolean
// hotkey is effective only when filter return true
function filter(event) {
var target = event.target || event.srcElement;
var tagName = target.tagName;
var flag = true; // ignore: isContentEditable === 'true', <input> and <textarea> when readOnly state is false, <select>
if (target.isContentEditable || (tagName === 'INPUT' || 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) {
var handlers;
var i; // 没有指定scope，获取scope
if (!scope) scope = getScope();
for (var key in _handlers) {
if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
handlers = _handlers[key];
for (i = 0; i < handlers.length;) {
if (handlers[i].scope === scope) handlers.splice(i, 1);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) {
var key = event.keyCode || event.which || event.charCode;
var 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 (var k in _modifier) {
if (_modifier[k] === key) hotkeys[k] = false;
}
}
}
function unbind(keysInfo) {
// unbind(), unbind all keys
if (!keysInfo) {
Object.keys(_handlers).forEach(function (key) {
return delete _handlers[key];
});
} else if (Array.isArray(keysInfo)) {
// support like : unbind([{key: 'ctrl+a', scope: 's1'}, {key: 'ctrl-a', scope: 's2', splitKey: '-'}])
keysInfo.forEach(function (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
var scope = args[0],
method = args[1];
if (typeof scope === 'function') {
method = scope;
scope = '';
}
eachUnbind({
key: keysInfo,
scope: scope,
method: method,
splitKey: '+'
});
}
} // 解除绑定某个范围的快捷键
var eachUnbind = function eachUnbind(_ref) {
var key = _ref.key,
scope = _ref.scope,
method = _ref.method,
_ref$splitKey = _ref.splitKey,
splitKey = _ref$splitKey === void 0 ? '+' : _ref$splitKey;
var multipleKeys = getKeys(key);
multipleKeys.forEach(function (originKey) {
var unbindKeys = originKey.split(splitKey);
var len = unbindKeys.length;
var lastKey = unbindKeys[len - 1];
var 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();
var mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
_handlers[keyCode] = _handlers[keyCode].map(function (record) {
// 通过函数判断，是否解除绑定，函数相等直接返回
var isMatchingMethod = method ? record.method === method : true;
if (isMatchingMethod && record.scope === scope && compareArray(record.mods, mods)) {
return {};
}
return record;
});
});
}; // 对监听对应快捷键的回调函数进行处理
function eventHandler(event, handler, scope) {
var 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 (var 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 === '*') {
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) {
var asterisk = _handlers['*'];
var 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(function (keyName) {
var 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 (var 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 (var 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`
var scope = getScope(); // 对任何快捷键都需要做的处理
if (asterisk) {
for (var 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);
}
}
} // key 不在 _handlers 中返回
if (!(key in _handlers)) return;
for (var _i = 0; _i < _handlers[key].length; _i++) {
if (event.type === 'keydown' && _handlers[key][_i].keydown || event.type === 'keyup' && _handlers[key][_i].keyup) {
if (_handlers[key][_i].key) {
var record = _handlers[key][_i];
var splitKey = record.splitKey;
var keyShortcut = record.key.split(splitKey);
var _downKeysCurrent = []; // 记录当前按键键值
for (var 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);
}
}
}
}
} // 判断 element 是否已经绑定事件
function isElementBind(element) {
return elementHasBindEvent.indexOf(element) > -1;
}
function hotkeys(key, option, method) {
_downKeys = [];
var keys = getKeys(key); // 需要处理的快捷键列表
var mods = [];
var scope = 'all'; // scope默认为all，所有范围都有效
var element = document; // 快捷键事件绑定节点
var i = 0;
var keyup = false;
var keydown = true;
var splitKey = '+'; // 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 (typeof option.splitKey === 'string') splitKey = option.splitKey; // eslint-disable-line
}
if (typeof option === 'string') scope = option; // 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: keyup,
keydown: keydown,
scope: scope,
mods: mods,
shortcut: keys[i],
method: method,
key: keys[i],
splitKey: splitKey
});
} // 在全局document上设置快捷键
if (typeof element !== 'undefined' && !isElementBind(element) && window) {
elementHasBindEvent.push(element);
addEvent(element, 'keydown', function (e) {
dispatch(e);
});
addEvent(window, 'focus', function () {
_downKeys = [];
});
addEvent(element, 'keyup', function (e) {
dispatch(e);
clearModifier(e);
});
}
}
var _api = {
setScope: setScope,
getScope: getScope,
deleteScope: deleteScope,
getPressedKeyCodes: getPressedKeyCodes,
isPressed: isPressed,
filter: filter,
unbind: unbind
};
for (var a in _api) {
if (Object.prototype.hasOwnProperty.call(_api, a)) {
hotkeys[a] = _api[a];
}
}
if (typeof window !== 'undefined') {
var _hotkeys = window.hotkeys;
hotkeys.noConflict = function (deep) {
if (deep && window.hotkeys === hotkeys) {
window.hotkeys = _hotkeys;
}
return hotkeys;
};
window.hotkeys = hotkeys;
}
return hotkeys;
})));