676 lines
19 KiB
JavaScript
676 lines
19 KiB
JavaScript
/**!
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* hotkeys-js v3.13.7
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* A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.
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*
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* Copyright (c) 2024 kenny wong <wowohoo@qq.com>
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* https://github.com/jaywcjlove/hotkeys-js.git
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*
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* @website: https://jaywcjlove.github.io/hotkeys-js
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* Licensed under the MIT license
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*/
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const isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
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// 绑定事件
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function addEvent(object, event, method, useCapture) {
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if (object.addEventListener) {
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object.addEventListener(event, method, useCapture);
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} else if (object.attachEvent) {
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object.attachEvent("on".concat(event), method);
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}
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}
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function removeEvent(object, event, method, useCapture) {
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if (object.removeEventListener) {
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object.removeEventListener(event, method, useCapture);
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} else if (object.detachEvent) {
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object.detachEvent("on".concat(event), method);
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}
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}
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// 修饰键转换成对应的键码
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function getMods(modifier, key) {
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const mods = key.slice(0, key.length - 1);
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for (let i = 0; i < mods.length; i++) mods[i] = modifier[mods[i].toLowerCase()];
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return mods;
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}
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// 处理传的key字符串转换成数组
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function getKeys(key) {
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if (typeof key !== 'string') key = '';
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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
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const keys = key.split(','); // 同时设置多个快捷键，以','分割
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let index = keys.lastIndexOf('');
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// 快捷键可能包含','，需特殊处理
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for (; index >= 0;) {
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keys[index - 1] += ',';
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keys.splice(index, 1);
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index = keys.lastIndexOf('');
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}
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return keys;
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}
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// 比较修饰键的数组
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function compareArray(a1, a2) {
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const arr1 = a1.length >= a2.length ? a1 : a2;
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const arr2 = a1.length >= a2.length ? a2 : a1;
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let isIndex = true;
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for (let i = 0; i < arr1.length; i++) {
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if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
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}
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return isIndex;
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}
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// Special Keys
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const _keyMap = {
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backspace: 8,
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'⌫': 8,
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tab: 9,
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clear: 12,
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enter: 13,
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'↩': 13,
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return: 13,
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esc: 27,
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escape: 27,
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space: 32,
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left: 37,
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up: 38,
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right: 39,
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down: 40,
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del: 46,
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delete: 46,
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ins: 45,
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insert: 45,
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home: 36,
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end: 35,
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pageup: 33,
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pagedown: 34,
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capslock: 20,
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num_0: 96,
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num_1: 97,
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num_2: 98,
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num_3: 99,
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num_4: 100,
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num_5: 101,
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num_6: 102,
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num_7: 103,
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num_8: 104,
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num_9: 105,
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num_multiply: 106,
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num_add: 107,
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num_enter: 108,
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num_subtract: 109,
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num_decimal: 110,
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num_divide: 111,
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'⇪': 20,
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',': 188,
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'.': 190,
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'/': 191,
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'`': 192,
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'-': isff ? 173 : 189,
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'=': isff ? 61 : 187,
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';': isff ? 59 : 186,
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'\'': 222,
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'[': 219,
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']': 221,
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'\\': 220
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};
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// Modifier Keys
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const _modifier = {
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// shiftKey
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'⇧': 16,
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shift: 16,
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// altKey
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'⌥': 18,
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alt: 18,
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option: 18,
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// ctrlKey
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'⌃': 17,
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ctrl: 17,
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control: 17,
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// metaKey
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'⌘': 91,
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cmd: 91,
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command: 91
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};
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const modifierMap = {
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16: 'shiftKey',
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18: 'altKey',
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17: 'ctrlKey',
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91: 'metaKey',
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shiftKey: 16,
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ctrlKey: 17,
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altKey: 18,
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metaKey: 91
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};
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const _mods = {
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16: false,
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18: false,
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17: false,
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91: false
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};
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const _handlers = {};
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// F1~F12 special key
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for (let k = 1; k < 20; k++) {
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_keyMap["f".concat(k)] = 111 + k;
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}
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let _downKeys = []; // 记录摁下的绑定键
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let winListendFocus = null; // window是否已经监听了focus事件
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let _scope = 'all'; // 默认热键范围
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const elementEventMap = new Map(); // 已绑定事件的节点记录
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// 返回键码
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const code = x => _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
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const getKey = x => Object.keys(_keyMap).find(k => _keyMap[k] === x);
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const getModifier = x => Object.keys(_modifier).find(k => _modifier[k] === x);
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// 设置获取当前范围（默认为'所有'）
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function setScope(scope) {
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_scope = scope || 'all';
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}
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// 获取当前范围
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function getScope() {
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return _scope || 'all';
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}
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// 获取摁下绑定键的键值
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function getPressedKeyCodes() {
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return _downKeys.slice(0);
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}
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function getPressedKeyString() {
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return _downKeys.map(c => getKey(c) || getModifier(c) || String.fromCharCode(c));
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}
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function getAllKeyCodes() {
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const result = [];
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Object.keys(_handlers).forEach(k => {
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_handlers[k].forEach(_ref => {
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let {
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key,
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scope,
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mods,
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shortcut
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} = _ref;
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result.push({
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scope,
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shortcut,
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mods,
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keys: key.split('+').map(v => code(v))
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});
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});
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});
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return result;
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}
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// 表单控件控件判断 返回 Boolean
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// hotkey is effective only when filter return true
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function filter(event) {
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const target = event.target || event.srcElement;
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const {
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tagName
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} = target;
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let flag = true;
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const isInput = tagName === 'INPUT' && !['checkbox', 'radio', 'range', 'button', 'file', 'reset', 'submit', 'color'].includes(target.type);
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// ignore: isContentEditable === 'true', <input> and <textarea> when readOnly state is false, <select>
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if (target.isContentEditable || (isInput || tagName === 'TEXTAREA' || tagName === 'SELECT') && !target.readOnly) {
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flag = false;
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}
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return flag;
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}
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// 判断摁下的键是否为某个键，返回true或者false
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function isPressed(keyCode) {
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if (typeof keyCode === 'string') {
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keyCode = code(keyCode); // 转换成键码
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}
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return _downKeys.indexOf(keyCode) !== -1;
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}
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// 循环删除handlers中的所有 scope(范围)
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function deleteScope(scope, newScope) {
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let handlers;
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let i;
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// 没有指定scope，获取scope
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if (!scope) scope = getScope();
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for (const key in _handlers) {
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if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
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handlers = _handlers[key];
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for (i = 0; i < handlers.length;) {
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if (handlers[i].scope === scope) {
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const deleteItems = handlers.splice(i, 1);
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deleteItems.forEach(_ref2 => {
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let {
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element
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} = _ref2;
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return removeKeyEvent(element);
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});
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} else {
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i++;
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}
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}
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}
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}
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// 如果scope被删除，将scope重置为all
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if (getScope() === scope) setScope(newScope || 'all');
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}
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// 清除修饰键
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function clearModifier(event) {
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let key = event.keyCode || event.which || event.charCode;
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const i = _downKeys.indexOf(key);
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// 从列表中清除按压过的键
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if (i >= 0) {
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_downKeys.splice(i, 1);
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}
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// 特殊处理 cmmand 键，在 cmmand 组合快捷键 keyup 只执行一次的问题
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if (event.key && event.key.toLowerCase() === 'meta') {
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_downKeys.splice(0, _downKeys.length);
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}
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// 修饰键 shiftKey altKey ctrlKey (command||metaKey) 清除
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if (key === 93 || key === 224) key = 91;
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if (key in _mods) {
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_mods[key] = false;
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// 将修饰键重置为false
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for (const k in _modifier) if (_modifier[k] === key) hotkeys[k] = false;
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}
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}
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function unbind(keysInfo) {
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// unbind(), unbind all keys
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if (typeof keysInfo === 'undefined') {
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Object.keys(_handlers).forEach(key => {
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Array.isArray(_handlers[key]) && _handlers[key].forEach(info => eachUnbind(info));
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delete _handlers[key];
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});
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removeKeyEvent(null);
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} else if (Array.isArray(keysInfo)) {
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// support like : unbind([{key: 'ctrl+a', scope: 's1'}, {key: 'ctrl-a', scope: 's2', splitKey: '-'}])
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keysInfo.forEach(info => {
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if (info.key) eachUnbind(info);
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});
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} else if (typeof keysInfo === 'object') {
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// support like unbind({key: 'ctrl+a, ctrl+b', scope:'abc'})
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if (keysInfo.key) eachUnbind(keysInfo);
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} else if (typeof keysInfo === 'string') {
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for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
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args[_key - 1] = arguments[_key];
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}
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// support old method
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// eslint-disable-line
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let [scope, method] = args;
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if (typeof scope === 'function') {
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method = scope;
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scope = '';
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}
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eachUnbind({
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key: keysInfo,
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scope,
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method,
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splitKey: '+'
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});
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}
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}
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// 解除绑定某个范围的快捷键
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const eachUnbind = _ref3 => {
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let {
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key,
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scope,
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method,
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splitKey = '+'
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} = _ref3;
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const multipleKeys = getKeys(key);
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multipleKeys.forEach(originKey => {
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const unbindKeys = originKey.split(splitKey);
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const len = unbindKeys.length;
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const lastKey = unbindKeys[len - 1];
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const keyCode = lastKey === '*' ? '*' : code(lastKey);
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if (!_handlers[keyCode]) return;
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// 判断是否传入范围，没有就获取范围
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if (!scope) scope = getScope();
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const mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
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const unbindElements = [];
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_handlers[keyCode] = _handlers[keyCode].filter(record => {
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// 通过函数判断，是否解除绑定，函数相等直接返回
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const isMatchingMethod = method ? record.method === method : true;
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const isUnbind = isMatchingMethod && record.scope === scope && compareArray(record.mods, mods);
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if (isUnbind) unbindElements.push(record.element);
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return !isUnbind;
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});
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unbindElements.forEach(element => removeKeyEvent(element));
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});
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};
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// 对监听对应快捷键的回调函数进行处理
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function eventHandler(event, handler, scope, element) {
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if (handler.element !== element) {
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return;
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}
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let modifiersMatch;
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// 看它是否在当前范围
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if (handler.scope === scope || handler.scope === 'all') {
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// 检查是否匹配修饰符（如果有返回true）
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modifiersMatch = handler.mods.length > 0;
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for (const y in _mods) {
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if (Object.prototype.hasOwnProperty.call(_mods, y)) {
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if (!_mods[y] && handler.mods.indexOf(+y) > -1 || _mods[y] && handler.mods.indexOf(+y) === -1) {
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modifiersMatch = false;
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}
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}
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}
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// 调用处理程序，如果是修饰键不做处理
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if (handler.mods.length === 0 && !_mods[16] && !_mods[18] && !_mods[17] && !_mods[91] || modifiersMatch || handler.shortcut === '*') {
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handler.keys = [];
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handler.keys = handler.keys.concat(_downKeys);
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if (handler.method(event, handler) === false) {
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if (event.preventDefault) event.preventDefault();else event.returnValue = false;
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if (event.stopPropagation) event.stopPropagation();
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if (event.cancelBubble) event.cancelBubble = true;
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}
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}
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}
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}
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// 处理keydown事件
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function dispatch(event, element) {
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const asterisk = _handlers['*'];
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let key = event.keyCode || event.which || event.charCode;
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// 表单控件过滤 默认表单控件不触发快捷键
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if (!hotkeys.filter.call(this, event)) return;
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// Gecko(Firefox)的command键值224，在Webkit(Chrome)中保持一致
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// Webkit左右 command 键值不一样
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if (key === 93 || key === 224) key = 91;
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/**
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* Collect bound keys
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* If an Input Method Editor is processing key input and the event is keydown, return 229.
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* https://stackoverflow.com/questions/25043934/is-it-ok-to-ignore-keydown-events-with-keycode-229
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* http://lists.w3.org/Archives/Public/www-dom/2010JulSep/att-0182/keyCode-spec.html
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*/
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if (_downKeys.indexOf(key) === -1 && key !== 229) _downKeys.push(key);
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/**
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* Jest test cases are required.
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* ===============================
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*/
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['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(keyName => {
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const keyNum = modifierMap[keyName];
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if (event[keyName] && _downKeys.indexOf(keyNum) === -1) {
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_downKeys.push(keyNum);
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} else if (!event[keyName] && _downKeys.indexOf(keyNum) > -1) {
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_downKeys.splice(_downKeys.indexOf(keyNum), 1);
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} else if (keyName === 'metaKey' && event[keyName] && _downKeys.length === 3) {
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/**
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* Fix if Command is pressed:
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* ===============================
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*/
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if (!(event.ctrlKey || event.shiftKey || event.altKey)) {
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_downKeys = _downKeys.slice(_downKeys.indexOf(keyNum));
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}
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}
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});
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/**
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* -------------------------------
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*/
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if (key in _mods) {
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_mods[key] = true;
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// 将特殊字符的key注册到 hotkeys 上
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for (const k in _modifier) {
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if (_modifier[k] === key) hotkeys[k] = true;
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}
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if (!asterisk) return;
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}
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// 将 modifierMap 里面的修饰键绑定到 event 中
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for (const e in _mods) {
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if (Object.prototype.hasOwnProperty.call(_mods, e)) {
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_mods[e] = event[modifierMap[e]];
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}
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}
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/**
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* https://github.com/jaywcjlove/hotkeys/pull/129
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* This solves the issue in Firefox on Windows where hotkeys corresponding to special characters would not trigger.
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* An example of this is ctrl+alt+m on a Swedish keyboard which is used to type μ.
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* Browser support: https://caniuse.com/#feat=keyboardevent-getmodifierstate
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*/
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if (event.getModifierState && !(event.altKey && !event.ctrlKey) && event.getModifierState('AltGraph')) {
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if (_downKeys.indexOf(17) === -1) {
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_downKeys.push(17);
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}
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if (_downKeys.indexOf(18) === -1) {
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_downKeys.push(18);
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}
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_mods[17] = true;
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_mods[18] = true;
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}
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// 获取范围 默认为 `all`
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const scope = getScope();
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// 对任何快捷键都需要做的处理
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if (asterisk) {
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for (let i = 0; i < asterisk.length; i++) {
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if (asterisk[i].scope === scope && (event.type === 'keydown' && asterisk[i].keydown || event.type === 'keyup' && asterisk[i].keyup)) {
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eventHandler(event, asterisk[i], scope, element);
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}
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}
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}
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// key 不在 _handlers 中返回
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if (!(key in _handlers)) return;
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const handlerKey = _handlers[key];
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const keyLen = handlerKey.length;
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for (let i = 0; i < keyLen; i++) {
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if (event.type === 'keydown' && handlerKey[i].keydown || event.type === 'keyup' && handlerKey[i].keyup) {
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if (handlerKey[i].key) {
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const record = handlerKey[i];
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const {
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splitKey
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} = record;
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const keyShortcut = record.key.split(splitKey);
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const _downKeysCurrent = []; // 记录当前按键键值
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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;
|
||
}
|
||
|
||
export { hotkeys as default };
|