[Feature Request]: Loading property behaviour in appropriate in ui5-combobox and ui5-multi-combobox

Feature Request Description

Impacted components: ui5-combobox and ui5-multi-combobox

Loading property behaviour is bit confusing, when loading property is true, what does this signify

1. loading only shows up if the list is empty(?)
2. loading shows up at the end of the list (“scroll-to-load”)
3. loading indicator is shown on a semi-transparent black background
   I guess, it is rather the 3rd entry, it's randomly shows loading on top of the dropdown items.

The busy indicator should not occupy the whole available height of the responsive popover over the drop-down items in the background, like in the above image. Rather it should much smaller and independent of the height of the responsive popover height and width.

Proposed Solution

As part of the solution, it would be more accurate if the loading or busy status should be shown in much smaller size without, depending on the size of the responsive popover. This is exact implementation in SAP UI5 control, where the loading/busy state would look like below:

Proposed Alternatives

No response

Organization

Ariba

Additional Context

No response

Priority

None

Privacy Policy

• I’m not disclosing any internal or sensitive information.

Start with the loading-property behavior of ui5-combobox and ui5-multi-combobox, then review how their responsive popovers display the loading indicator. Done means the loading or busy state is shown as a smaller indicator independent of the popover’s full height and width, matching the proposed behavior.