Summary:
"validate" singal is not supported in legacy.
only ELM_ENTRY_EVENT_VALIDATE is working.
Reviewers: herdsman
Subscribers: cedric
Differential Revision: https://phab.enlightenment.org/D5854
* @li "theme,changed": Called when the theme is changed.
* @li "undo,request": Called on undo request.
* @li "rejected": Called when some of inputs are rejected by the filter. (since 1.9)
- * @li "validate": Called when entry text ready to validate. (since 1.14)
*
* Default content parts of the entry items that you can use for are:
* @li "icon" - An icon in the entry