Method _tryShow

src/component/tooltip/TooltipView.ts:453–515

(
        e: TryShowParams,
        dispatchAction: ExtensionAPI['dispatchAction']
    )

    }

    private _tryShow(
        e: TryShowParams,
        dispatchAction: ExtensionAPI['dispatchAction']
    ) {
        const el = e.target;
        const tooltipModel = this._tooltipModel;
        if (!tooltipModel) {
            return;
        }

        // Save mouse x, mouse y. So we can try to keep showing the tip if chart is refreshed
        this._lastX = e.offsetX;
        this._lastY = e.offsetY;

        const dataByCoordSys = e.dataByCoordSys;
        if (dataByCoordSys && dataByCoordSys.length) {
            this._showAxisTooltip(dataByCoordSys, e);
        }
        else if (el) {
            const ecData = getECData(el);
            if (ecData.ssrType === 'legend') {
                // Don't trigger tooltip for legend tooltip item
                return;
            }
            this._lastDataByCoordSys = null;
            this._cbParamsList = null;

            let seriesDispatcher: Element;
            let cmptDispatcher: Element;
            findEventDispatcher(el, function (target) {
                if ((target as ECElement).tooltipDisabled) {
                    seriesDispatcher = cmptDispatcher = null;
                    return true;
                }
                if (seriesDispatcher || cmptDispatcher) {
                    return;
                }
                // Always show item tooltip if mouse is on the element with dataIndex
                if (getECData(target).dataIndex != null) {
                    seriesDispatcher = target;
                }
                // Tooltip provided directly. Like legend.
                else if (getECData(target).tooltipConfig != null) {
                    cmptDispatcher = target;
                }
            }, true);

            if (seriesDispatcher) {
                this._showSeriesItemTooltip(e, seriesDispatcher, dispatchAction);
            }
            else if (cmptDispatcher) {
                this._showComponentItemTooltip(e, cmptDispatcher, dispatchAction);
            }
            else {
                this._hide(dispatchAction);
            }
        }
        else {