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react-keybinding-mixin

v0.0.8

Published

A ReactJS mixin that enables components to bind callbacks to keyboard events.

Downloads

5

Readme

react-keybinding-mixin

A ReactJS mixin that enables components to bind callbacks to keyboard events.

Install

npm install react-keybinding-mixin --save

Instructions

var KeybindingMixin = require('react-keybinding-mixin');

module.exports = React.createClass({
    mixins: [KeybindingMixin],

    componentDidMount: function() {
        this.onKey('f', function(event) {
            // Handle keyboard event.
        });

        this.onKey(this.KEYS.UP, function(event) {
            // Handle keyboard event.
        }, { ctrl: true, shift: true });
    }
}

Keybinding

The options argument to onKey() may contain booleans which describe the modifier keys to which the key-binding should apply. Additionally, if options.input is true, then the supplied callback will be invoked even if the keydown event is triggered on an input field or button.

The this.KEYS map is also available to make it easier to bind certain key combinations as in the example above.

DEFAULT_OPTIONS = {
    alt: false,
    ctrl: false,
    meta: false,
    shift: false,
    input: false
};

KEYS = {
    BACKSPACE: 8,
    TAB: 9,
    ENTER: 13,
    CAPS_LOCK: 20,
    ESC: 27,
    SPACE: 32,
    PAGE_UP: 33,
    PAGE_DOWN: 34,
    END: 35,
    HOME: 36,
    LEFT: 37,
    RIGHT: 39,
    UP: 38,
    DOWN: 40,
    INSERT: 45,
    DEL: 46,
    FORWARD_SLASH: 191,
    BACKSLASH: 222
};

The event object is passed to the callback function. You can use this to, among other things, prevent the default action from being triggered by calling event.preventDefault().

Contributing

Contributions of any sort are welcome.

License

MIT.