Bidirectional binding enhancement

[Eric Bresie]

Regarding the enumeration…

As was touched on separately, would a “TIMER” or “TIME” based case be worth considering?

For the FOCUS/ACTION…with ACTION It does FOCUS + Event, should there be one that is just “Event” (I.e. not accounting for loss of focus)?
Would it need to account for “multiple Enums” being applied at one time (combination of types)?

Eric Bresie
Ebresie at gmail.com

> On November 9, 2021 at 11:45:46 PM CST, Michael Strauß <michaelstrau2 at gmail.com (mailto:michaelstrau2 at gmail.com)> wrote:.
>
> For this reason, I propose to add a new type of binding to the
> javafx.beans.binding.Bindings class:
>
> void bindBidirectional(Property<T> target, Property<T> source,
> UpdateSourceTrigger trigger)
>
> UpdateSourceTrigger is an enumeration that allows developers to
> specify the condition on which changes of the target property will
> update the source property. Its values are:
>
> DEFAULT: Updates the source property on every change (this is the
> default behavior of bidirectional bindings).
> FOCUS: Updates the source property when the UI control loses input focus.
> ACTION: Updates the source property when the UI control loses input
> focus or when it receives an ActionEvent (in the case of TextField,
> this corresponds to the ENTER key).
>
> Note that this setting only applies to changes of the target property.
> When the source property is changed instead, the target property is
> always immediately updated.
>
> Any feedback on this proposal is appreciated.