Function initShowBoundingRects

test/lib/testHelper.js:1650–1803

* @param {EChartsInstance} chart * @param {Parameter ['boundingRect']} opt.boundingRect

(chart, echarts, opt, boundingRectsContainer)

     * @param {Parameter<testHelper.create, 2>['boundingRect']} opt.boundingRect
     */
    function initShowBoundingRects(chart, echarts, opt, boundingRectsContainer) {
        assert(chart.__testHelper);

        var _bRectZr;
        var _bRectGroup;
        // @type Parameter<testHelper.create, 2>['boundingRect']
        var _currBoundingRectOpt = false;

        chart.__testHelper.updateBoundingRects
            = chart.__testHelper.updateBoundingRect
            = chart.__testHelper.boundingRect
            = chart.__testHelper.boundingRects
            = updateBoundingRects;

        updateBoundingRects(opt.boundingRect);

        return;

        function updateBoundingRects(opt) {
            if (arguments.length > 0) {
                _currBoundingRectOpt = opt;
            } // If no opt, keep the last one.

            _currBoundingRectOpt
                ? buildBoundingRects(_currBoundingRectOpt)
                : disableBoundingRects();
        }

        function ensureBoundingRectsFacilities() {
            // zr requires size non-zero.
            boundingRectsContainer.style.width = chart.getWidth() + 'px';
            boundingRectsContainer.style.height = chart.getHeight() + 'px';

            if (_bRectZr) {
                _bRectZr.resize();
                return;
            }

            _bRectGroup = new echarts.graphic.Group();
            _bRectGroup.__testHelperBoundingRectsRoot = true;
            _bRectGroup.on('click', function (event) {
                var target = event.target;
                if (!target || !target.__testHelperBoundingRectTarget) {
                    return;
                }
                var wrapper = {
                    boundingRect: target,
                    rawElement: target.__testHelperBoundingRectTarget
                };
                console.log('boundingRect:', wrapper.boundingRect);
                console.log('rawElement:', wrapper.rawElement);
                window.$0 = wrapper;
            });
            _bRectZr = echarts.zrender.init(boundingRectsContainer);
            _bRectZr.add(_bRectGroup);
        }

        function disableBoundingRects() {