toosoon-events/lib/keyboard.js

Project providing services implemented as singleton class instances

import { EventsManager } from './index';
/**
 * Utility class for creating keyboard events listeners
 *
 * @class KeyboardManager
 * @extends EventsManager<KeyboardEventKey, KeyboardListener>
 */
class KeyboardManager extends EventsManager {
    listeners = {
        down: [],
        up: [],
        press: []
    };
    bind(eventKey) {
        switch (eventKey) {
            case 'down':
                window.addEventListener('keydown', this._onKeyDown);
                break;
            case 'up':
                window.addEventListener('keyup', this._onKeyUp);
                break;
            case 'press':
                window.addEventListener('keypress', this._onKeyPress);
                break;
        }
    }
    unbind(eventKey) {
        switch (eventKey) {
            case 'down':
                window.removeEventListener('keydown', this._onKeyDown);
                break;
            case 'up':
                window.removeEventListener('keyup', this._onKeyUp);
                break;
            case 'press':
                window.removeEventListener('keypress', this._onKeyPress);
                break;
        }
    }
    _onKeyDown = (event) => {
        this.emit('down', event);
    };
    _onKeyUp = (event) => {
        this.emit('up', event);
    };
    _onKeyPress = (event) => {
        this.emit('press', event);
    };
}
export default new KeyboardManager();