c3_chart_internal_fn.generateEventRectsForMultipleXs = function()

in TestApplications/Web/js/lib/components/c3-0.4.2/c3.js [2351:2449]
65 lines of code
20 McCabe index (conditional complexity)

    c3_chart_internal_fn.generateEventRectsForMultipleXs = function (eventRectEnter) {
        var $$ = this, d3 = $$.d3, config = $$.config;

        function mouseout() {
            $$.svg.select('.' + CLASS.eventRect).style('cursor', null);
            $$.hideXGridFocus();
            $$.hideTooltip();
            $$.unexpandCircles();
            $$.unexpandBars();
        }

        eventRectEnter.append('rect')
            .attr('x', 0)
            .attr('y', 0)
            .attr('width', $$.width)
            .attr('height', $$.height)
            .attr('class', CLASS.eventRect)
            .on('mouseout', function () {
                if ($$.hasArcType()) { return; }
                mouseout();
            })
            .on('mousemove', function () {
                var targetsToShow = $$.filterTargetsToShow($$.data.targets);
                var mouse, closest, sameXData, selectedData;

                if ($$.dragging) { return; } // do nothing when dragging
                if ($$.hasArcType(targetsToShow)) { return; }

                mouse = d3.mouse(this);
                closest = $$.findClosestFromTargets(targetsToShow, mouse);

                if ($$.mouseover && (!closest || closest.id !== $$.mouseover.id)) {
                    config.data_onmouseout.call($$, $$.mouseover);
                    $$.mouseover = undefined;
                }

                if (! closest) {
                    mouseout();
                    return;
                }

                if ($$.isScatterType(closest) || !config.tooltip_grouped) {
                    sameXData = [closest];
                } else {
                    sameXData = $$.filterByX(targetsToShow, closest.x);
                }

                // show tooltip when cursor is close to some point
                selectedData = sameXData.map(function (d) {
                    return $$.addName(d);
                });
                $$.showTooltip(selectedData, mouse);

                // expand points
                if (config.point_focus_expand_enabled) {
                    $$.expandCircles(closest.index, closest.id, true);
                }
                $$.expandBars(closest.index, closest.id, true);

                // Show xgrid focus line
                $$.showXGridFocus(selectedData);

                // Show cursor as pointer if point is close to mouse position
                if ($$.isBarType(closest.id) || $$.dist(closest, mouse) < 100) {
                    $$.svg.select('.' + CLASS.eventRect).style('cursor', 'pointer');
                    if (!$$.mouseover) {
                        config.data_onmouseover.call($$, closest);
                        $$.mouseover = closest;
                    }
                }
            })
            .on('click', function () {
                var targetsToShow = $$.filterTargetsToShow($$.data.targets);
                var mouse, closest;

                if ($$.hasArcType(targetsToShow)) { return; }

                mouse = d3.mouse(this);
                closest = $$.findClosestFromTargets(targetsToShow, mouse);

                if (! closest) { return; }

                // select if selection enabled
                if ($$.isBarType(closest.id) || $$.dist(closest, mouse) < 100) {
                    $$.main.selectAll('.' + CLASS.shapes + $$.getTargetSelectorSuffix(closest.id)).select('.' + CLASS.shape + '-' + closest.index).each(function () {
                        if (config.data_selection_grouped || $$.isWithinShape(this, closest)) {
                            $$.toggleShape(this, closest, closest.index);
                            $$.config.data_onclick.call($$.api, closest, this);
                        }
                    });
                }
            })
            .call(
                d3.behavior.drag().origin(Object)
                    .on('drag', function () { $$.drag(d3.mouse(this)); })
                    .on('dragstart', function () { $$.dragstart(d3.mouse(this)); })
                    .on('dragend', function () { $$.dragend(); })
            );
    };