Function _dblclick

test/jasmine/tests/legend_test.js:1843–1854

(index)

        }

        function _dblclick(index) {
            return function () {
                var item = d3SelectAll('rect.legendtoggle')[0][index || 0];
                return new Promise(function (resolve) {
                    item.dispatchEvent(new MouseEvent('mousedown'));
                    item.dispatchEvent(new MouseEvent('mouseup'));
                    item.dispatchEvent(new MouseEvent('mousedown'));
                    item.dispatchEvent(new MouseEvent('mouseup'));
                    setTimeout(resolve, 20);
                });
            };
        }

        function assertVisible(gd, expectation) {
            var actual = gd._fullData.map(function (trace) {