Function dragScrollBar

test/jasmine/tests/updatemenus_test.js:1364–1366

(node, position, deltaX, deltaY)

    }

    function dragScrollBar(node, position, deltaX, deltaY) {
        drag(node, position.x, position.y, deltaX, deltaY);
    }

    function wheel(node, deltaY) {
        node.dispatchEvent(new WheelEvent('wheel', {