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/*!
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* hotkeys-js v3.4.1
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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) 2018 kenny wong <wowohoo@qq.com>
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* http://jaywcjlove.github.io/hotkeys
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*
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* Licensed under the MIT license.
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
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typeof define === 'function' && define.amd ? define(factory) :
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(global.hotkeys = factory());
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}(this, (function () { 'use strict';
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var 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) {
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if (object.addEventListener) {
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object.addEventListener(event, method, false);
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} else if (object.attachEvent) {
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object.attachEvent('on' + event, function () {
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method(window.event);
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});
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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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var mods = key.slice(0, key.length - 1);
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for (var i = 0; i < mods.length; i++) {
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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 (!key) 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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var keys = key.split(','); // 同时设置多个快捷键,以','分割
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var 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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var arr1 = a1.length >= a2.length ? a1 : a2;
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var arr2 = a1.length >= a2.length ? a2 : a1;
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var isIndex = true;
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for (var 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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var _keyMap = { // 特殊键
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backspace: 8,
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tab: 9,
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clear: 12,
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enter: 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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'⇪': 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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var _modifier = { // 修饰键
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'⇧': 16,
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shift: 16,
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'⌥': 18,
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alt: 18,
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option: 18,
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'⌃': 17,
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ctrl: 17,
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control: 17,
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'⌘': isff ? 224 : 91,
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cmd: isff ? 224 : 91,
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command: isff ? 224 : 91
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};
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var _downKeys = []; // 记录摁下的绑定键
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var modifierMap = {
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16: 'shiftKey',
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18: 'altKey',
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17: 'ctrlKey'
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};
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var _mods = { 16: false, 18: false, 17: false };
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var _handlers = {};
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// F1~F12 特殊键
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for (var k = 1; k < 20; k++) {
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_keyMap['f' + k] = 111 + k;
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}
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// 兼容Firefox处理
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modifierMap[isff ? 224 : 91] = 'metaKey';
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_mods[isff ? 224 : 91] = false;
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var _scope = 'all'; // 默认热键范围
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var isBindElement = false; // 是否绑定节点
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// 返回键码
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var code = function code(x) {
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return _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
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};
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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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// 表单控件控件判断 返回 Boolean
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function filter(event) {
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var target = event.target || event.srcElement;
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var tagName = target.tagName;
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// 忽略这些情况下快捷键无效
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return !(tagName === 'INPUT' || tagName === 'SELECT' || tagName === 'TEXTAREA' || target.isContentEditable);
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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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var handlers = void 0;
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var i = void 0;
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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 (var 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) handlers.splice(i, 1);else i++;
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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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var key = event.keyCode || event.which || event.charCode;
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var 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) _downKeys.splice(i, 1);
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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 (var k in _modifier) {
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if (_modifier[k] === key) hotkeys[k] = false;
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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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function unbind(key, scope, method) {
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var multipleKeys = getKeys(key);
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var keys = void 0;
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var mods = [];
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var obj = void 0;
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// 通过函数判断,是否解除绑定
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// https://github.com/jaywcjlove/hotkeys/issues/44
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if (typeof scope === 'function') {
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method = scope;
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scope = 'all';
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}
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for (var i = 0; i < multipleKeys.length; i++) {
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// 将组合快捷键拆分为数组
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keys = multipleKeys[i].split('+');
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// 记录每个组合键中的修饰键的键码 返回数组
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if (keys.length > 1) mods = getMods(_modifier, keys);
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// 获取除修饰键外的键值key
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key = keys[keys.length - 1];
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key = key === '*' ? '*' : code(key);
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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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// 如何key不在 _handlers 中返回不做处理
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if (!_handlers[key]) return;
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// 清空 handlers 中数据,
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// 让触发快捷键键之后没有事件执行到达解除快捷键绑定的目的
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for (var r = 0; r < _handlers[key].length; r++) {
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obj = _handlers[key][r];
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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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if (method && obj.method !== method) return;
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// 判断是否在范围内并且键值相同
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if (obj.scope === scope && compareArray(obj.mods, mods)) {
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_handlers[key][r] = {};
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}
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}
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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) {
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var modifiersMatch = void 0;
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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 (var 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) modifiersMatch = false;
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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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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) {
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var asterisk = _handlers['*'];
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var key = event.keyCode || event.which || event.charCode;
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// 搜集绑定的键
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if (_downKeys.indexOf(key) === -1) _downKeys.push(key);
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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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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 (var 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 (var 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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// 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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// 获取范围 默认为all
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var 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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|
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for (var i = 0; i < asterisk.length; i++) {
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|
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if (asterisk[i].scope === scope) eventHandler(event, asterisk[i], scope);
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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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for (var _i = 0; _i < _handlers[key].length; _i++) {
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// 找到处理内容
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|
|
eventHandler(event, _handlers[key][_i], scope);
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|
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}
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}
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function hotkeys(key, option, method) {
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|
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var keys = getKeys(key); // 需要处理的快捷键列表
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|
|
var mods = [];
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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;
|
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|
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|
|
// 对为设定范围的判断
|
|
|
|
|
if (method === undefined && typeof option === 'function') {
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|
|
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 (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('+'); // 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({
|
|
|
|
|
scope: scope,
|
|
|
|
|
mods: mods,
|
|
|
|
|
shortcut: keys[i],
|
|
|
|
|
method: method,
|
|
|
|
|
key: keys[i]
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
// 在全局document上设置快捷键
|
|
|
|
|
if (typeof element !== 'undefined' && !isBindElement) {
|
|
|
|
|
isBindElement = true;
|
|
|
|
|
addEvent(element, 'keydown', function (e) {
|
|
|
|
|
dispatch(e);
|
|
|
|
|
});
|
|
|
|
|
addEvent(element, 'keyup', function (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;
|
|
|
|
|
|
|
|
|
|
})));
|