AutoComplete no empty message if forceSelection is false or introduce a new attribute showEmptyMessage

[pizzi80]

Description

Solution 1:
do not show the emptyMessage if forceSelection="false"

Solution 2:
introduce a new attribute showEmptyMessage

Describe the solution you would like

If the selection of a suggested element is not mandatory,
and there are no result from the completeMethod,
usually I'm just writing a new value and
I'm not interested if the are no suggested values...

Additional context

No response

[melloware]

@pizzi80 can you be a little more clear on your scenario? Maybe a reproducer showing the issue.
PrimeFaces Test

[pizzi80]

if the user is not forced to select an item from the suggested list of values
the empty message only brings confusion, for example

If you type something in the first input in the autocomple showcase,
the emptyMessage it's not what an user expect ...

https://www.primefaces.org/showcase/ui/input/autoComplete.xhtml?jfwid=d1c1b

[pizzi80]

I've found that if you set
emptyMessage="#{null}" or emptyMessage=""

the emptyMessage is not displayed

[pizzi80]

only as a reminder ... the emptyMessage attribute it's not documented at all

https://primefaces.github.io/primefaces/13_0_0/#/components/autocomplete?id=autocomplete

[melloware]

Yep i was going to say that but in PF14 this will be different as we removed the EmptyMesage property as labels got moved to the client side from the server side. So in 14 this would be either

MonkeyPatch:

if (PrimeFaces.widget.AutoComplete) {
    PrimeFaces.widget.AutoComplete.prototype.configureLocale = function() {
        this.emptyMessage = '';
        this.resultsMessage = PrimeFaces.getLocaleLabel('searchMessage');
        if (this.dropdown) {
            this.dropdown.attr('aria-label', PrimeFaces.getLocaleLabel('choose'));
        }
    }
};

Or change your local to have an empty search label this.emptyMessage = PrimeFaces.getLocaleLabel('emptySearchMessage');

[melloware]

i think for 14.0 we need to add showEmptyMessage like PrimeReact has https://primereact.org/autocomplete/#api.AutoComplete.props.showEmptyMessage

[pizzi80]

probably it's better, in this way you'll cover all the situations ;)