pragma-views2/webcomponents/lib/base-shortcuts.js

export class BaseShortcuts {
    constructor() {
        this.keyCodes = {
            leftArrow: 37,
            rightArrow: 39,
            upArrow: 38,
            downArrow: 40,
            space: 32,
            home: 36,
            end: 35, 
            enter: 13
        };
    }

    dispose() {
        this.keyCodes = null;
    }

    /**
     * Sets the tabs index to 0 and focuses the element
     * @param element
     */
    focus(element) {
        if (element) {
            element.setAttribute("tabindex", "0");
            element.focus();
        }
    }

    /**
     * Sets tabindex to -1 and removes focus from the element
     * @param element
     */
    blur(element) {
        if (element) {
            element.setAttribute("tabindex", "-1");
            element.blur();
        }
    }
}