feat(ui5-combobox/multi-combobox): physical items

[MapTo0]

Passed items to the ui5-combobox and ui5-multi-combobox are now physically slotted to the internal list of the picker.

[MapTo0]

@dobrinyonkov I have some changes in the list if something is not clear please contact me.

Basically, Since the combobox and the multicombobox are filtering their items internally, I need to render inidividual slots just for filtered items. That breaks the Item Navigation in the list and I had to enhance it

@vladitasev

[elenastoyanovaa]

combobox:

• go to Items with grouping
• press A and navigate through items
• the input field will eventually have a value Zimbabve which is not present in the list
• it seems that this item is part of the second visible group, but should not be part of the filtered items and should not be selected on navigation as it is filtered out

[elenastoyanovaa]

combobox:

• go to Lazy Loading - example does not work on IE11
• type P
• delete the typeahead in order to show the rest of the list
• press arrow down to navigate through the list - everything breaks. the same works on main

[elenastoyanovaa]

combobox

• ComboBox - suggestions and show wrapping is broken

[elenastoyanovaa]

multicombobox:

1. the mcb item checkbox should have an accessible name. Check in UI5 and in the main of ui5 web components for the label and add it as an accessible name to the checkbox. It should be translatable as well.

2. Go to "Select all with groups". Press A to filter. Press the Select All - the items won't be selected. This works in main.

3. MultiComboBox with N-More and show wrapping - wrapping is broken

[elenastoyanovaa]

combobox:

• go to Items with grouping
• press A and navigate through items
• the input field will eventually have a value Zimbabve which is not present in the list
• it seems that this item is part of the second visible group, but should not be part of the filtered items and should not be selected on navigation as it is filtered out

As this is reproducible in main as well we will ignore this comment.

[MapTo0]

@nnaydenow please carefully check the cypress use case.

We have MultiComboBox Items now physical. They are slotted, this means mcbElement.items always returns full list of the items, but just some of them are forwarded to the list. for the forwarded we add slot. How we should select such items in the test?