Editor form input type enum.
INPUT_TEXT
Default text field.
INPUT_PASSWORD
Password text field.
INPUT_FILE
File.
INPUT_VALUE
Uneditable value.
INPUT_TEXTAREA
Text area.
INPUT_SELECT
Drowdown list of values.
INPUT_HEADER
Group header.
INPUT_JSON
JSON-string.
INPUT_CHECKBOX
Checkbox.
INPUT_DATETIME
Date/Time string (DD.MM.YYYY HH:MM).
INPUT_HIDDEN
Hidden field with a given value.