Human readable key event binding for react.js
npm install keyeventsKeyEvents
=========
Installation
------------
``bash
$ npm install keyevents
`
Upgrading
-----
KeyEvents 2.0 is out! If you're not familiar with SemVer, that means you'll have to do some work to hop on the new version. See changes to componentKeyEvents below.
Usage
-----
This library takes the result of event.which, and returns the key in a human readable format (in english). It can be used as a mixin, or as a utility method (in case you're moving on to ES6 Classes). The main method, componentKeyEvents, runs on keydown, and returns the key assigned. The exact functionality is up to you.
` js
var KeyEvents = require('keyevents');
var ExampleComponent = React.createComponent({
mixins:[KeyEvents],
componentKeyEvents:function(keypressed){
var ExampleObject = {
// You can assign functions directly:
a:function() {
console.log('you pressed a!')
},
backspace: function() {
console.log('back that space up!')
},
// ... or use component methods!
p: this.componentMethod(arguments)
}
ExampleObject[keypressed]();
}
...
`
Again, how you handle it is up to you. You could run through your keybindings as with a switch. You can also define all your keybindings in an external file, then share them components.
#### this.componentKeyEvents()
Your component's method for handling key presses. It's run on keyDown.
#### this.destroyKeyEvents()
this removes all keydown event listners. When used as a mixin, it runs automatically on componentWillUnmount.
#### this.createKeyEvents()
this initializes keydown event listeners. When used as a mixin, it runs automatically on componentWillMount.
The keys included so far map as the following:
` js',
{
8 : 'backspace',
9 : 'tab',
13 : 'enter',
16 : 'shift',
17 : 'ctrl',
18 : 'alt',
19 : 'pause',
20 : 'capsLock',
27 : 'escape',
33 : 'pageUp',
34 : 'pageDown',
35 : 'end',
36 : 'home',
37 : 'left',
38 : 'up',
39 : 'right',
40 : 'down',
45 : 'insert',
46 : 'delete',
48 : '0',
49 : '1',
50 : '2',
51 : '3',
52 : '4',
53 : '5',
54 : '6',
55 : '7',
56 : '8',
57 : '9',
65 : 'a',
66 : 'b',
67 : 'c',
68 : 'd',
69 : 'e',
70 : 'f',
71 : 'g',
72 : 'h',
73 : 'i',
74 : 'j',
75 : 'k',
76 : 'l',
77 : 'm',
78 : 'n',
79 : 'o',
80 : 'p',
81 : 'q',
82 : 'r',
83 : 's',
84 : 't',
85 : 'u',
86 : 'v',
87 : 'w',
88 : 'x',
89 : 'y',
90 : 'z',
91 : 'leftWindowKey',
92 : 'rightWindowKey',
93 : 'select',
96 : 'numpad0',
97 : 'numpad1',
98 : 'numpad2',
99 : 'numpad3',
100 : 'numpad4',
101 : 'numpad5',
102 : 'numpad6',
103 : 'numpad7',
104 : 'numpad8',
105 : 'numpad9',
106 : 'multiply',
107 : 'add',
109 : 'subtract',
110 : 'decimal ',
111 : 'divide',
112 : 'f1',
113 : 'f2',
114 : 'f3',
115 : 'f4',
116 : 'f5',
117 : 'f6',
118 : 'f7',
119 : 'f8',
120 : 'f9',
121 : 'f10',
122 : 'f11',
123 : 'f12',
144 : 'numLock',
145 : 'scrollLock',
186 : ';',
187 : '=',
188 : ',',
189 : '-',
190 : '.',
191 : '/',
192 : '
219 : '{',
220 : '\\',
221 : '}',
22 : '\''
}
```