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# Hotkeys
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[![](https://img.shields.io/github/issues/jaywcjlove/hotkeys.svg)](https://github.com/jaywcjlove/hotkeys/issues) [![](https://img.shields.io/github/forks/jaywcjlove/hotkeys.svg)](https://github.com/jaywcjlove/hotkeys/network) [![](https://img.shields.io/github/stars/jaywcjlove/hotkeys.svg)](https://github.com/jaywcjlove/hotkeys/stargazers) [![](https://img.shields.io/github/release/jaywcjlove/hotkeys.svg)](https://github.com/jaywcjlove/hotkeys/releases) ![](http://jaywcjlove.github.io/sb/status/no-dependencies.svg) [![Build Status](https://www.travis-ci.org/jaywcjlove/hotkeys.svg?branch=master)](https://www.travis-ci.org/jaywcjlove/hotkeys) [![Coverage Status](https://coveralls.io/repos/github/jaywcjlove/hotkeys/badge.svg?branch=master)](https://coveralls.io/github/jaywcjlove/hotkeys?branch=master) [![jaywcjlove/sb](https://jaywcjlove.github.io/sb/lang/english.svg)](./README.md)
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这是一个强健的 Javascript 库用于捕获键盘输入和输入的组合键,它没有依赖,压缩只有(~3kb),gzip:1.9k。[官方文档DEMO预览](http://jaywcjlove.github.io/hotkeys/?lang=cn),[更多实例](https://github.com/jaywcjlove/hotkeys/issues?q=label%3ADemo+).
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```shell
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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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## 创建
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您将需要在您的系统上安装的 Node.js。
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```sh
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# bower 安装
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$ bower install hotkeysjs
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# npm 安装
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$ npm install hotkeys-js
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$ npm run build # 编译
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$ npm run watch # 开发模式
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```
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```js
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import hotkeys from 'hotkeys-js';
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hotkeys('f5', function(event, handler){
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// Prevent the default refresh event under WINDOWS system
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event.preventDefault()
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alert('you pressed F5!')
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});
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```
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或者在您的HTML中手动下载并引入 **hotkeys.js**,你也可以通过 [UNPKG](https://unpkg.com/hotkeys-js/dist/) 进行下载:
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```html
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<script src="https://unpkg.com/hotkeys-js/dist/hotkeys.min.js"></script>
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<script type="text/javascript">
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hotkeys('ctrl+a,ctrl+b,r,f', function(event,handler) {
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switch(handler.key){
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case "ctrl+a":alert('you pressed ctrl+a!');break;
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case "ctrl+b":alert('you pressed ctrl+b!');break;
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case "r":alert('you pressed r!');break;
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case "f":alert('you pressed f!');break;
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}
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});
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</script>
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```
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## React中使用
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[react-hotkeys](https://github.com/jaywcjlove/react-hotkeys),安装如下:
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```sh
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npm i -S react-hot-keys
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```
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例子
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```js
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import React, { Component } from 'react';
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import Hotkeys from 'react-hot-keys';
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export default class HotkeysDemo extends Component {
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constructor(props) {
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super(props);
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this.state = {
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output: 'Hello, I am a component that listens to keydown and keyup of a',
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}
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}
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onKeyUp(keyName, e, handle) {
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console.log("test:onKeyUp", e, handle)
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this.setState({ output: `onKeyUp ${keyName}` });
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}
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onKeyDown(keyName, e, handle) {
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console.log("test:onKeyDown", keyName, e, handle)
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this.setState({ output: `onKeyDown ${keyName}` });
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}
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render() {
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return (
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<Hotkeys
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keyName="shift+a,alt+s"
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onKeyDown={this.onKeyDown.bind(this)}
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onKeyUp={this.onKeyUp.bind(this)}
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>
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<div style={{ padding: "50px" }}> {this.state.output} </div>
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</Hotkeys>
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)
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}
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}
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```
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## 使用
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传统调用
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```html
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<script type="text/javascript" src="./js/hotkeys.js"></script>
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```
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包加载
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```js
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import hotkeys from 'hotkeys-js';
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hotkeys('shift+a,alt+d, w', function(e){
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console.log('干点活儿',e);
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if(hotkeys.shift) console.log('大哥你摁下了 shift 键!');
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if(hotkeys.ctrl) console.log('大哥你摁下了 ctrl 键!');
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if(hotkeys.alt) console.log('大哥你摁下了 alt 键!');
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});
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```
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## 支持的键
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`⇧`, `shift`, `option`, `⌥`, `alt`, `ctrl`, `control`, `command`, `⌘`
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`⌘` Command()
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`⌃` Control
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`⌥` Option(alt)
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`⇧` Shift
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`⇪` Caps Lock(大写)
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~~`fn` 功能键就是fn(不支持)~~
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`↩︎` return/enter
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`space` 空格键
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## 修饰键判断
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可以对下面的修饰键判断 `shift` `alt` `option` `ctrl` `control` `command`,特别注意`+`和`=`键值相同,组合键设置`⌘+=`
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```js
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hotkeys('shift+a,alt+d, w', function(e){
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console.log('干点活儿',e);
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if(hotkeys.shift) console.log('您摁下了 shift 键!');
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if(hotkeys.ctrl) console.log('您摁下了 ctrl 键!');
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if(hotkeys.alt) console.log('您摁下了 alt 键!');
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if(hotkeys.option) console.log('您摁下了 option 键!');
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if(hotkeys.control) console.log('您摁下了 control 键!');
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if(hotkeys.cmd) console.log('您摁下了 cmd 键!');
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if(hotkeys.command) console.log('您摁下了 command 键!');
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});
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```
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## 定义快捷键
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> `hotkeys([keys:<String>], [option:[string|object|function]], [callback:<function>])`
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```js
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// 定义 F5 快捷键
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hotkeys('f5', function(event,handler){
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//event.srcElement: input
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//event.target: input
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// 阻止WINDOWS系统下的默认刷新事件
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event.preventDefault()
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alert('你按下了 F5 键!')
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});
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// 返回 false 将停止活动,并阻止默认浏览器事件
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// Mac OS 系统 定义 `command+r` 为刷新快捷键
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hotkeys('ctrl+r, command+r', function(){
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alert('停止刷新!');
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return false;
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});
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// 定义a快捷键
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hotkeys('a', function(event,handler){
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//event.srcElement: input
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//event.target: input
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if(event.target === "input"){
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alert('你在输入框中按下了 a!')
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}
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alert('你按下了 a!')
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});
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// 定义 ctrl+a、ctrl+b、r、f 四组快捷键
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hotkeys('ctrl+a,ctrl+b,r,f', function(event,handler){
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switch(handler.key){
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case "ctrl+a": alert('你按下了ctrl+a!'); break;
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case "ctrl+b": alert('你按下了ctrl+b!'); break;
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case "r": alert('你按下了r!'); break;
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case "f": alert('你按下了f!'); break;
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}
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//handler.scope 范围
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});
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// 多个快捷方式做同样的事情
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hotkeys('⌘+r, ctrl+r', function(){ });
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// 对所有摁键执行任务
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hotkeys('*','wcj', function(e){
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console.log('干点活儿',e);
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console.log("key.getScope()::",hotkeys.getScope());
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if(hotkeys.shift) console.log('大哥你摁下了 shift 键!');
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if(hotkeys.ctrl) console.log('大哥你摁下了 ctrl 键!');
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if(hotkeys.alt) console.log('大哥你摁下了 alt 键!');
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});
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```
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#### option
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- `scope<String>`
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- `element<HTMLElement>`
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- `keyup<Boolean>`
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- `keydown<Boolean>`
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```js
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hotkeys('o, enter', {
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scope: 'wcj',
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element: document.getElementById('warpper'),
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}, function(){
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console.log('do something else');
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});
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```
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## 切换快捷键
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如果在单页面在不同的区域,相同的快捷键,干不同的事儿,之间来回切换。O(∩_∩)O !
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```js
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// 一个快捷键,有可能干的活儿不一样哦
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hotkeys('ctrl+o, ctrl+alt+enter', 'scope1', function(){
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console.log('你好看');
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});
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hotkeys('ctrl+o, enter', 'scope2', function(){
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console.log('你好丑陋啊!');
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});
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// 你摁 “ctrl+o”组合键
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// 当scope等于 scope1 ,执行 回调事件打印出 “你好看”,
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// 当scope等于 scope2 ,执行 回调事件打印出 “你好丑陋啊!”,
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// 通过setScope设定范围scope
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hotkeys.setScope('scope1'); // 默认所有事儿都干哦
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```
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## 标记快捷键范围
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**删除** 区域范围标记
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```js
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hotkeys.deleteScope('scope1');
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```
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**获取** 区域范围标记
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```js
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hotkeys.getScope();
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```
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**设置** 区域范围标记
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```js
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hotkeys.setScope('scope1');
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```
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## 解除绑定
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`hotkeys.unbind("ctrl+o, ctrl+alt+enter")` 解除绑定两组快捷键
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`hotkeys.unbind("ctrl+o","files")` 解除绑定名字叫files钟的一组快捷键
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```js
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// 解除绑定 'a' 程序函数
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hotkeys.unbind('a');
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// 仅针对单个范围解除绑定快捷键
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// 如果未指定范围,则默认为当前范围(hotkeys.getScope())
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hotkeys.unbind('o, enter', 'issues');
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hotkeys.unbind('o, enter', 'files');
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```
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通过函数来解除绑定
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```js
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function example(){}
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hotkeys('a', example);
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hotkeys.unbind('a', example);
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hotkeys('a', 'issues', example);
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hotkeys.unbind('a', 'issues', example);
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```
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## 键判断
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判断摁下的键是否为某个键
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```js
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hotkeys('a', function(){
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console.log(hotkeys.isPressed("a")); //=> true
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console.log(hotkeys.isPressed("A")); //=> true
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console.log(hotkeys.isPressed(65)); //=> true
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});
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```
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## 获取摁下键值
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获取摁下绑定键的键值 `hotkeys.getPressedKeyCodes()`
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```js
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hotkeys('command+ctrl+shift+a,f', function(){
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console.log(hotkeys.getPressedKeyCodes()); //=> [17, 65] 或者 [70]
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})
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```
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## keyup
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**key down** 和 **key up** 将都执行回调事件。
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```js
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hotkeys('ctrl+a,alt+a+s', { keyup: true }, (evn, handler) => {
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if(evn.type === 'keydown') {
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console.log('keydown:', evn.type, handler, handler.key);
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}
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if(evn.type === 'keyup') {
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console.log('keyup:', evn.type, handler, handler.key);
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}
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});
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```
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## 过滤
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`INPUT` `SELECT` `TEXTAREA` 默认不处理。
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`hotkeys.filter` 返回 `true` 快捷键设置才会起作用,`false` 快捷键设置失效。
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|
|
|
|
|
|
|
```javascript
|
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|
hotkeys.filter = function(event){
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|
return true;
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|
|
|
|
}
|
|
|
|
|
// 如何增加过滤可编辑标签 <div contentEditable="true"></div>
|
|
|
|
|
// contentEditable老浏览器不支持滴
|
|
|
|
|
hotkeys.filter = function(event) {
|
|
|
|
|
var tagName = (event.target || event.srcElement).tagName;
|
|
|
|
|
return !(tagName.isContentEditable ||
|
|
|
|
|
tagName == 'INPUT' ||
|
|
|
|
|
tagName == 'SELECT' ||
|
|
|
|
|
tagName == 'TEXTAREA');
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
//
|
|
|
|
|
hotkeys.filter = function(event){
|
|
|
|
|
var tagName = (event.target || event.srcElement).tagName;
|
|
|
|
|
hotkeys.setScope(/^(INPUT|TEXTAREA|SELECT)$/.test(tagName) ? 'input' : 'other');
|
|
|
|
|
return true;
|
|
|
|
|
}
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## 兼容模式
|
|
|
|
|
|
|
|
|
|
```js
|
|
|
|
|
var k = hotkeys.noConflict();
|
|
|
|
|
k('a', function() {
|
|
|
|
|
console.log("这里可以干一些事儿")
|
|
|
|
|
});
|
|
|
|
|
|
|
|
|
|
hotkeys()
|
|
|
|
|
// -->Uncaught TypeError: hotkeys is not a function(anonymous function)
|
|
|
|
|
// @ VM2170:2InjectedScript._evaluateOn
|
|
|
|
|
// @ VM2165:883InjectedScript._evaluateAndWrap
|
|
|
|
|
// @ VM2165:816InjectedScript.evaluate @ VM2165:682
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## 开发
|
|
|
|
|
|
|
|
|
|
安装依赖,运行自重载构建,获取代码:
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
$ git https://github.com/jaywcjlove/hotkeys.git
|
|
|
|
|
$ cd hotkeys # 进入目录
|
|
|
|
|
$ npm install # 或者使用 yarn install 安装依赖
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
运行下面命令自动重载构建:
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
$ npm run watch
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
运行稳定环境
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
$ npm run doc:dev
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
如果要贡献,请 fork `Hotkeys.js`, 并添加您的测试代码(在 test 目录中),并提交一个 PR。
|
|
|
|
|
|
|
|
|
|
```shell
|
|
|
|
|
$ npm run test
|
|
|
|
|
$ npm run test:watch # Development model
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## License
|
|
|
|
|
|
|
|
|
|
[MIT © Kenny Wong](./LICENSE)
|