Trait droom_ui::control::text::TextAction [−] [src]

pub trait TextAction where Self: Element + 'static {
    fn set_action<F>(&mut self, cb: F) -> Self where F: Callback<(Self, Option<char>, String)> { ... }
    fn remove_action(&mut self)
                     -> Option<Box<Callback<(Self, Option<char>, String)>>> { ... }
}

Action generated when the text is edited, but before its value is actually changed.

Can be generated when using the keyboard, undo system or from the clipboard.

The following values can be returned from the callback: + CallbackReturn::Default or () for the default reaction. + CallbackReturn::Close will be processed, but the change will be ignored. + CallbackReturn::Ignore ignores the new value. + An CallbackReturn::Char, if the received c is None or NUL is returned it'll act just like CallbackReturn::Default otherwise the returned character will be used instead of the one sent to the callback.

The VALUE attribute can be changed only if CallbackReturn::Ignore is returned.

NOTE: The character received and returned must be in the ASCII range of UTF-8 (0-127). No restriction on the newvalue string, when the value added to the VALUE is a non-ASCII character the c parameter will be None but the value is still used for updating the VALUE attribute.

Provided Methods

Implementors