feat(dialog): add "reason" for why dialog is about to close to event detail
#875
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PR Checklist
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Describe the new behavior?
The
forge-dialog-before-close
custom event will now contain an object in itsdetail
property that provides thereason
as to why the dialog is closing. This event will dispatch whenever a light dismiss action occurs (which will provide whether the escape key was pressed or the backdrop was clicked to trigger the light dismiss), or when the dialog is closed viaformmethod="dialog"
submission.Additional information
This primarily exposes the ability for developers to handle light dismiss actions differently whether that is triggered via escape key press or backdrop click, and potentially handle those to actions differently if desired.
Ideally light dismiss should be controlled via
persistent
as a whole, but there may be scenarios where handling each action differently is necessary.