ActionScript for Flash MX: The Definitive Guide, Second Edition

Selection.addListener() Method

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ActionScript Language Reference

to the Submit button, because rollover events occur before the button is pressed. For

example:

submit_btn.onRollOver = function () {

// Note which field is focused before the button is pressed.

focusedField = Selection.getFocus();

// Note which characters are selected.

beginIdx = focusedField.getBeginIndex();

endIdx = focusedField.getEndIndex();

}

By storing the focused field in a variable, we can then operate on the selected characters in

that field or return focus to the field after, say, checking the user’s input for errors.

See Also

The Button class, _focusrect, the MovieClip class, the TextField class

Selection.addListener() Method

register an object to receive onSetFocus() event notices

Flash 6

Selection.addListener(listener)

Arguments

listener An object with an onSetFocus() method defined.

Description

The addListener() method adds listener to the list of objects notified when Selection’s

onSetFocus() event occurs. The

listener argument is an object of any class that defines a

method by the name onSetFocus; the method is invoked when the onSetFocus() event

occurs for Selection. To stop a

listener object from receiving events, use Selection.

removeListener().

Multiple objects can respond independently to each onSetFocus( ...