If visibleDate is set multiple times before paint, Scheduler goes into infinite loop

[ghulamghousdev]

Forum post

Hi, we are using the Calendar + Scheduler integration and we're currently experiencing a nasty bug that leads to a crash.

Steps to reproduce:

1. use the default demo (https://bryntum.com/products/calendar/examples/calendar-scheduler/)
2. Set the following config:

mode: "month"

and

date: new Date()

3. click on an event that's not in the current week; then click on the Timeline button.

Screen recording: https://www.dropbox.com/scl/fi/j27gd59nbujw77oytmslc/bryntum-freeze.mov?rlkey=i0avtppy125gekg20fpwknhhu&dl=0

Using Calendar 5.6.3.

bryntum-freeze-2.mov

[ExtAnimal]

TimelineBase.js needs

    updateVisibleDate(options) {
        const me = this;

        // Infinite scroll initialization takes care of its visibleDate after
        // calculating the optimum scroll range in TimelineScroll#initScroll
        if (!(me.infiniteScroll && me.isConfiguring)) {
            if (me.isPainted) {
                me.scrollToDate(options.date, options);
            }
            else if (!me.visibleDateProcessed) {
                me.whenVisible(() => me.updateVisibleDate(me.visibleDate));
                me.visibleDateProcessed = true;
            }
        }
    }