[Select] Keyboard navigation on select with no enabled items causes infinite loop

[Goddak]

Environment

• Package version(s): 3.7.0
• Browser and OS versions: Chrome 72 (Ubuntu 18.04)

Steps to reproduce

1. Navigate to: https://blueprintjs.com/docs/#select/select-component
2. Turn on "Disable films before 2000" prop
3. Open drop-down and filter with 'the god'
4. Press down arrow

Actual behaviour

Crashes.

Expected behaviour

Same as when no results (filter by "thegod" to test) - nothing should happen when I press an arrow key.

Possible solution

Not investigated

[adidahiya]

Good catch, thanks for the clear repro steps

[Goddak]

@adidahiya - Hey bud, any update on this bug?

[vedadeepta]

@adidahiya - seems like this bug is caused due to an infinite loop in getFirstEnabledItem() in select/src/components/query-list/ component when startIndex = -1 and all items are disabled the index variable is stuck in the range of 0 - maxIndex.