focusController.js - Key Handling

focusController.js

/**
* On a key press this method will handle moving the focus
* @function
* @param {int} event Browser key code
*/
FocusController.prototype.onKeyDown = function (event) {
    switch(event.keyCode) {
        case 9:
            // Tab
            break;
        case 37:
            // Left
            this.moveFocus({x: -1, y: 0});
            break;
        case 38:
            // Up
            this.moveFocus({x: 0, y: 1});
            break;
        case 39:
            // Right
            this.moveFocus({x: 1, y: 0});
            break;
        case 40:
            // Down
            this.moveFocus({x: 0, y: -1});
            break;
        case 13:
            // Enter
            if(this.getCurrentlyFocusedItem()) {
                this.getCurrentlyFocusedItem().onItemClick();
            }
            break;
    }
};