Method dispatchAction

src/core/echarts.ts:1573–1623

* @param opt If pass boolean, means opt.silent * @param opt.silent Default `false`. Whether trigger events. * @param opt.flush Default `undefined`. * true: Flush immediately, and then pixel in canvas can be fetched * immediately. Caution: it might affect perform

(
        payload: Payload,
        opt?: boolean | {
            silent?: boolean,
            flush?: boolean | undefined
        }
    )

     *        undefined: Auto decide whether perform flush.
     */
    dispatchAction(
        payload: Payload,
        opt?: boolean | {
            silent?: boolean,
            flush?: boolean | undefined
        }
    ): void {
        if (this._disposed) {
            disposedWarning(this.id);
            return;
        }

        if (!isObject(opt)) {
            opt = {silent: !!opt};
        }

        if (!actions[payload.type]) {
            return;
        }

        // Avoid dispatch action before setOption. Especially in `connect`.
        if (!this._model) {
            return;
        }

        // May dispatchAction in rendering procedure
        if (this[IN_EC_CYCLE_KEY]) {
            this._pendingActions.push(payload);
            return;
        }

        const silent = opt.silent;
        doDispatchAction.call(this, payload, silent);

        const flush = opt.flush;
        if (flush) {
            this._zr.flush();
        }
        else if (flush !== false && env.browser.weChat) {
            // In WeChat embedded browser, `requestAnimationFrame` and `setInterval`
            // hang when sliding page (on touch event), which cause that zr does not
            // refresh until user interaction finished, which is not expected.
            // But `dispatchAction` may be called too frequently when pan on touch
            // screen, which impacts performance if do not throttle them.
            this._throttledZrFlush();
        }

        flushPendingActions.call(this, silent);

        triggerUpdatedEvent.call(this, silent);
    }

    updateLabelLayout() {
        lifecycle.trigger('series:layoutlabels', this._model, this._api, {