User Guide
1480 Window component
A component instance (windowInstance) dispatches an event (in this case, complete) and
the event is handled by a function, also called a handler, on a listener object
(
listenerObject) that you create. You define a method with the same name as the event on
the listener object; the method is called when the event is triggered. When the event is
triggered, it automatically passes an event object (
eventObject) to the listener object
method. The event object has properties that contain information about the event. You can
use these properties to write code that handles the event. Finally, you call the
EventDispatcher.addEventListener() method on the component instance that
broadcasts the event to register the listener with the instance. When the instance dispatches
the event, the listener is called.
For more information, see “EventDispatcher class” on page 499.
Example
The following example creates a window and then defines a complete handler that resizes the
window to fit its contents. You drag a Window component from the Components panel to
the current document’s library, and then add the following code to Frame 1:
/**
Requires:
- Window component in library
*/
import mx.managers.PopUpManager;
import mx.containers.Window;
System.security.allowDomain("http://www.flash-mx.com");
var my_win:MovieClip = PopUpManager.createPopUp(this, Window, true,
{closeButton:true, contentPath:"http://www.flash-mx.com/images/
image1.jpg"});
var winListener:Object = new Object();
winListener.click = function(evt_obj:Object) {
my_win.deletePopUp();
};
winListener.complete = function(evt_obj:Object) {
my_win.setSize(my_win.content._width, my_win.content._height + 25);
}
my_win.addEventListener("click", winListener);
my_win.addEventListener("complete", winListener);
See also
EventDispatcher.addEventListener()