Method _getThumbnailInfo

src/chart/graph/GraphView.ts:336–353

* Get thumbnail data structure only if supported.

()

     * Get thumbnail data structure only if supported.
     */
    private _getThumbnailInfo(): {
        bridge: ThumbnailBridge
        coordSys: View
    } | NullUndefined {
        const model = this._model;
        const coordSys = model.coordinateSystem;
        if (coordSys.type !== 'view') {
            return;
        }
        const bridge = getThumbnailBridge(model);
        if (!bridge) {
            return;
        }
        return {
            bridge,
            coordSys: coordSys as View,
        };
    }

    private _updateThumbnailWindow() {
        const info = this._getThumbnailInfo();