function setFocus()

in _dist/alertify/alertify.js [1375:1420]

• 34 lines of code
• 15 McCabe index (conditional complexity)

        function setFocus(instance, resetTarget) {
            // reset target has already been determined.
            if (resetTarget) {
                resetTarget.focus();
            } else {
                // current instance focus settings
                var focus = instance.__internal.focus;
                // the focus element.
                var element = focus.element;

                switch (typeof focus.element) {
                // a number means a button index
                case 'number':
                    if (instance.__internal.buttons.length > focus.element) {
                        //in basic view, skip focusing the buttons.
                        if (instance.get('basic') === true) {
                            element = instance.elements.reset[0];
                        } else {
                            element = instance.__internal.buttons[focus.element].element;
                        }
                    }
                    break;
                // a string means querySelector to select from dialog body contents.
                case 'string':
                    element = instance.elements.body.querySelector(focus.element);
                    break;
                // a function should return the focus element.
                case 'function':
                    element = focus.element.call(instance);
                    break;
                }

                // if no focus element, default to first reset element.
                if (instance.get('defaultFocusOff') === true || ((typeof element === 'undefined' || element === null) && instance.__internal.buttons.length === 0)) {
                    element = instance.elements.reset[0];
                }
                // focus
                if (element && element.focus) {
                    element.focus();
                    // if selectable
                    if (focus.select && element.select) {
                        element.select();
                    }
                }
            }
        }