Function installUniversalTransition

src/animation/universalTransition.ts:723–785

(registers: EChartsExtensionInstallRegisters)

}

export function installUniversalTransition(registers: EChartsExtensionInstallRegisters) {

    registers.registerUpdateLifecycle('series:beforeupdate', (ecMOdel, api, params) => {
        each(normalizeToArray(params.seriesTransition), transOpt => {
            each(normalizeToArray(transOpt.to), (finder) => {
                const series = params.updatedSeries;
                for (let i = 0; i < series.length; i++) {
                    if (finder.seriesIndex != null && finder.seriesIndex === series[i].seriesIndex
                        || finder.seriesId != null && finder.seriesId === series[i].id) {
                        series[i][SERIES_UNIVERSAL_TRANSITION_PROP] = true;
                    }
                }
            });
        });
    });
    registers.registerUpdateLifecycle('series:transition', (ecModel, api, params) => {
        // TODO api provide an namespace that can save stuff per instance
        const globalStore = getUniversalTransitionGlobalStore(api);

        // TODO multiple to multiple series.
        if (globalStore.oldSeries && params.updatedSeries && params.optionChanged) {
            // TODO transitionOpt was used in an old implementation and can be removed now
            // Use give transition config if its' give;
            const transitionOpt = params.seriesTransition;
            if (transitionOpt) {
                each(normalizeToArray(transitionOpt), opt => {
                    transitionSeriesFromOpt(opt, globalStore, params, api);
                });
            }
            else {  // Else guess from series based on transition series key.
                const updateBatches = findTransitionSeriesBatches(globalStore, params);
                each(updateBatches.keys(), key => {
                    const batch = updateBatches.get(key);
                    transitionBetween(batch.oldSeries, batch.newSeries, api);
                });
            }

            // Reset
            each(params.updatedSeries, series => {
                // Reset;
                if (series[SERIES_UNIVERSAL_TRANSITION_PROP]) {
                    series[SERIES_UNIVERSAL_TRANSITION_PROP] = false;
                }
            });
        }

        // Save all series of current update. Not only the updated one.
        const allSeries = ecModel.getSeries();
        const savedSeries: SeriesModel[] = globalStore.oldSeries = [];
        const savedDataGroupIds: string[] = globalStore.oldDataGroupIds = [];
        const savedData: SeriesData[] = globalStore.oldData = [];
        for (let i = 0; i < allSeries.length; i++) {
            const data = allSeries[i].getData();
            // Only save the data that can have transition.
            // Avoid large data costing too much extra memory
            if (data.count() < DATA_COUNT_THRESHOLD) {
                savedSeries.push(allSeries[i]);
                savedDataGroupIds.push(allSeries[i].get('dataGroupId') as string);