The properties of the Event class carry basic information about an event, such as the event's type or whether the event's default behavior can be canceled. For many events, such as the events represented by the Event class constants, this basic information is sufficient. Other events, however, may require more detailed information. Events associated with a mouse click, for example, need to include additional information about the location of the click event and whether any keys were pressed during the click event. You can pass such additional information to event listeners by extending the Event class, which is what the MouseEvent class does. ActionScript 3.0 API defines several Event subclasses for common events that require additional information. Events associated with each of the Event subclasses are described in the documentation for each class.
The methods of the Event class can be used in event listener functions to affect the
behavior of the event object. Some events have an associated default behavior. For example,
the doubleClick event has an associated default behavior that highlights
the word under the mouse pointer at the time of the event.
Your event listener can cancel this
behavior by calling the preventDefault() method.
You can also make the current
event listener the last one to process an event by calling the stopPropogation()
or stopImmediatePropogation() method.
See also
| Property | Defined By | ||
|---|---|---|---|
| bubbles : Boolean
[read-only]
Indicates whether an event is a bubbling event.
| Event | ||
| cancelable : Boolean
[read-only]
Indicates whether the behavior associated with the event can be prevented.
| Event | ||
 | constructor : Object
A reference to the class object or constructor function for a given object instance.
| Object | |
| currentTarget : Object
[read-only]
The object that is actively processing the Event object with an event listener.
| Event | ||
| eventPhase : uint
[read-only]
The current phase in the event flow.
| Event | ||
| prototype : Object
[static]
A reference to the prototype object of a class or function object.
| Object | |
| target : Object
[read-only]
The event target.
| Event | ||
| type : String
[read-only]
The type of event.
| Event | ||
| Method | Defined By | ||
|---|---|---|---|
|
Creates an Event object to pass as a parameter to event listeners.
| Event | ||
|
Duplicates an instance of an Event subclass.
| Event | ||
|
A utility function for implementing the toString() method in custom
ActionScript 3.0 Event classes.
| Event | ||
|
Indicates whether an object has a specified property defined.
| Object | |
|
Checks whether the preventDefault() method has been called on the event.
| Event | ||
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter.
| Object | |
|
Cancels an event's default behavior if that behavior can be canceled.
| Event | ||
|
Indicates whether the specified property exists and is enumerable.
| Object | |
|
Sets the availability of a dynamic property for loop operations.
| Object | |
|
Prevents processing of any event listeners in the current node and any subsequent nodes in
the event flow.
| Event | ||
|
Prevents processing of any event listeners in nodes subsequent to the current node in the
event flow.
| Event | ||
|
Returns a string containing all the properties of the Event object.
| Event | ||
|
Returns the primitive value of the specified object.
| Object | |
| Constant | Defined By | ||
|---|---|---|---|
| ACTIVATE : String = "activate" [static]
The Event.ACTIVATE constant defines the value of the type property of an activate event object.
| Event | ||
| ADDED : String = "added" [static]
The Event.ADDED constant defines the value of the type property of
an added event object.
| Event | ||
| ADDED_TO_STAGE : String = "addedToStage" [static]
The Event.ADDED_TO_STAGE constant defines the value of the type
property of an addedToStage event object.
| Event | ||
| CANCEL : String = "cancel" [static]
The Event.CANCEL constant defines the value of the type property of a cancel event object.
| Event | ||
| CHANGE : String = "change" [static]
The Event.CHANGE constant defines the value of the type property of a change event object.
| Event | ||
| CLOSE : String = "close" [static]
The Event.CLOSE constant defines the value of the type property of a close event object.
| Event | ||
 CLOSING : String = "closing"[static]
The Event.CLOSING constant defines the value of the
type property of a closing event object.
| Event | ||
| COMPLETE : String = "complete" [static]
The Event.COMPLETE constant defines the value of the type property of a complete event object.
| Event | ||
| CONNECT : String = "connect" [static]
The Event.CONNECT constant defines the value of the type property of a connect event object.
| Event | ||
| DEACTIVATE : String = "deactivate" [static]
The Event.DEACTIVATE constant defines the value of the type property of a deactivate event object.
| Event | ||
| DISPLAYING : String = "displaying" [static]
Defines the value of the type property of a displaying event object.
| Event | ||
| ENTER_FRAME : String = "enterFrame" [static]
The Event.ENTER_FRAME constant defines the value of the type property of
an enterFrame event object.
| Event | ||
| EXITING : String = "exiting" [static]
The Event.EXITING constant defines the value of the type property of an exiting event object.
| Event | ||
| FULLSCREEN : String = "fullScreen" [static]
The Event.FULL_SCREEN constant defines the value of the type property of a fullScreen event object.
| Event | ||
| HTML_BOUNDS_CHANGE : String = "htmlBoundsChange" [static]
The Event.HTML_BOUNDS_CHANGE constant defines the value of the type property of an htmlBoundsChange event object.
| Event | ||
| HTML_DOM_INITIALIZE : String = "htmlDOMInitialize" [static]
The Event.HTML_DOM_INITIALIZE constant defines the value of the type property
of an htmlDOMInitialize event object.
| Event | ||
| HTML_RENDER : String = "htmlRender" [static]
The Event.HTML_RENDER constant defines the value of the type property of an htmlRender event object.
| Event | ||
| ID3 : String = "id3" [static]
The Event.ID3 constant defines the value of the type property of an id3 event object.
| Event | ||
| INIT : String = "init" [static]
The Event.INIT constant defines the value of the type property of an init event object.
| Event | ||
| LOCATION_CHANGE : String = "locationChange" [static]
The Event.LOCATION_CHANGE constant defines the value of the type property of a locationChange event object.
| Event | ||
| MOUSE_LEAVE : String = "mouseLeave" [static]
The Event.MOUSE_LEAVE constant defines the value of the type property of a mouseLeave event object.
| Event | ||
| NETWORK_CHANGE : String = "networkChange" [static]
The Event.NETWORK_CHANGE constant defines the value of the type property of a networkChange event object.
| Event | ||
| OPEN : String = "open" [static]
The Event.OPEN constant defines the value of the type property of an open event object.
| Event | ||
| REMOVED : String = "removed" [static]
The Event.REMOVED constant defines the value of the type property of
a removed event object.
| Event | ||
| REMOVED_FROM_STAGE : String = "removedFromStage" [static]
The Event.REMOVED_FROM_STAGE constant defines the value of the type
property of a removedFromStage event object.
| Event | ||
| RENDER : String = "render" [static]
The Event.RENDER constant defines the value of the type property of a render event object.
| Event | ||
| RESIZE : String = "resize" [static]
The Event.RESIZE constant defines the value of the type property of a resize event object.
| Event | ||
| SCROLL : String = "scroll" [static]
The Event.SCROLL constant defines the value of the type property of a scroll event object.
| Event | ||
| SELECT : String = "select" [static]
The Event.SELECT constant defines the value of the type property of a select event object.
| Event | ||
| SOUND_COMPLETE : String = "soundComplete" [static]
The Event.SOUND_COMPLETE constant defines the value of the type property of a soundComplete event object.
| Event | ||
| TAB_CHILDREN_CHANGE : String = "tabChildrenChange" [static]
The Event.TAB_CHILDREN_CHANGE constant defines the value of the type
property of a tabChildrenChange event object.
| Event | ||
| TAB_ENABLED_CHANGE : String = "tabEnabledChange" [static]
The Event.TAB_ENABLED_CHANGE constant defines the value of the type
property of a tabEnabledChange event object.
| Event | ||
| TAB_INDEX_CHANGE : String = "tabIndexChange" [static]
The Event.TAB_INDEX_CHANGE constant defines the value of the
type property of a tabIndexChange event object.
| Event | ||
| UNLOAD : String = "unload" [static]
The Event.UNLOAD constant defines the value of the type property of an unload event object.
| Event | ||
| USER_IDLE : String = "userIdle" [static]
The Event.USER_IDLE constant defines the value of the type property of a userIdle event object.
| Event | ||
| USER_PRESENT : String = "userPresent" [static]
The Event.USER_PRESENT constant defines the value of the type property of a userPresent event object.
| Event | ||
| bubbles | property |
Hide Inherited Public Properties
Show Inherited Public Propertiesbubbles:Boolean [read-only]
Indicates whether an event is a bubbling event. If the event can bubble,
this value is true; otherwise it is false.
When an event occurs, it moves through the three phases of the event flow: the capture phase, which flows from the top of the display list hierarchy to the node just before the target node; the target phase, which comprises the target node; and the bubbling phase, which flows from the node subsequent to the target node back up the display list hierarchy.
Some events, such as the activate and unload events, do not
have a bubbling phase. The bubbles property has a value of
false for events that do not have a bubbling phase.
public function get bubbles():Boolean
| cancelable | property |
cancelable:Boolean [read-only]
Indicates whether the behavior associated with the event can be prevented.
If the behavior can be canceled, this value is true; otherwise it is false.
public function get cancelable():Boolean
See also
| currentTarget | property |
currentTarget:Object [read-only] The object that is actively processing the Event object with an event listener. For example, if a user clicks an OK button, the current target could be the node containing that button or one of its ancestors that has registered an event listener for that event.
public function get currentTarget():Object
| eventPhase | property |
eventPhase:uint [read-only] The current phase in the event flow. This property can contain the following numeric values:
EventPhase.CAPTURING_PHASE).EventPhase.AT_TARGET).EventPhase.BUBBLING_PHASE). public function get eventPhase():uint
| target | property |
target:Object [read-only] The event target. This property contains the target node. For example, if a user clicks an OK button, the target node is the display list node containing that button.
public function get target():Object
| type | property |
type:String [read-only] The type of event. The type is case-sensitive.
public function get type():String
| Event | () | Constructor |
public function Event(type:String, bubbles:Boolean = false, cancelable:Boolean = false)
Creates an Event object to pass as a parameter to event listeners.
Parameterstype:String — The type of the event, accessible as Event.type.
|
|
bubbles:Boolean (default = false)false.
|
|
cancelable:Boolean (default = false)false.
|
| clone | () | method |
public function clone():Event
Duplicates an instance of an Event subclass.
Returns a new Event object that is a copy of the original instance of the Event object.
You do not normally call clone(); the EventDispatcher class calls it automatically
when you redispatch an event—that is, when you call dispatchEvent(event) from a handler
that is handling event.
The new Event object includes all the properties of the original.
When creating your own custom Event class, you must override the
inherited Event.clone() method in order for it to duplicate the
properties of your custom class. If you do not set all the properties that you add
in your event subclass, those properties will not have the correct values when listeners
handle the redispatched event.
In this example, PingEvent is a subclass of Event
and therefore implements its own version of clone().
class PingEvent extends Event {
var URL:String;
public override function clone():Event {
return new PingEvent(type, bubbles, cancelable, URL);
}
}
Event — A new Event object that is identical to the original.
|
| formatToString | () | method |
public function formatToString(className:String, ... arguments):String
A utility function for implementing the toString() method in custom
ActionScript 3.0 Event classes. Overriding the
toString() method is recommended, but not required.
class PingEvent extends Event {
var URL:String;
public override function toString():String {
return formatToString("PingEvent", "type", "bubbles", "cancelable", "eventPhase", "URL");
}
}
Parameters
className:String — The name of your custom Event class. In the previous example,
the className parameter is PingEvent.
|
|
... arguments — The properties of the Event class and the
properties that you add in your custom Event class. In the previous example, the ...arguments
parameter includes type, bubbles, cancelable,
eventPhase, and URL
.
|
String — The name of your custom Event class and the String value of your ...arguments
parameter.
|
| isDefaultPrevented | () | method |
public function isDefaultPrevented():Boolean
Checks whether the preventDefault() method has been called on the event. If the
preventDefault() method has been called,
returns true; otherwise, returns false.
Boolean — If preventDefault() has been called, returns true; otherwise,
returns false.
|
See also
| preventDefault | () | method |
public function preventDefault():void
Cancels an event's default behavior if that behavior can be canceled.
Many events have associated behaviors that are carried out by default.
For example, if a user types a character
into a text field, the default behavior is that the character is
displayed in the text field. Because the TextEvent.TEXT_INPUT
event's default behavior can be canceled, you can use the preventDefault()
method to prevent the character from appearing.
An example of a behavior that is not cancelable is the default behavior associated with
the Event.REMOVED event, which is generated whenever Flash Player is about to
remove a display object from the display list. The default behavior (removing the element)
cannot be canceled, so the preventDefault() method has no effect on this
default behavior.
You can use the Event.cancelable property to check whether you can prevent
the default behavior associated with a particular event. If the value of
Event.cancelable is true, then preventDefault() can
be used to cancel the event; otherwise, preventDefault() has no effect.
See also
| stopImmediatePropagation | () | method |
public function stopImmediatePropagation():void
Prevents processing of any event listeners in the current node and any subsequent nodes in
the event flow. This method takes effect immediately, and it affects event listeners
in the current node. In contrast, the stopPropagation() method doesn't take
effect until all the event listeners in the current node finish processing.
Note: This method does not cancel the behavior associated with this event; see preventDefault() for that functionality.
See also
| stopPropagation | () | method |
public function stopPropagation():void
Prevents processing of any event listeners in nodes subsequent to the current node in the
event flow. This method does not affect any event listeners in the current node
(currentTarget). In contrast, the stopImmediatePropagation() method
prevents processing of event listeners in both the current node and subsequent nodes.
Additional calls to this method have no effect. This method can be called in any phase
of the event flow.
Note: This method does not cancel the behavior associated with this event; see preventDefault() for that functionality.
See also
| toString | () | method |
public function toString():String
Returns a string containing all the properties of the Event object. The string is in the following format:
[Event type=value bubbles=value cancelable=value]
String — A string containing all the properties of the Event object.
|
| ACTIVATE | Constant |
public static const ACTIVATE:String = "activate"
The Event.ACTIVATE constant defines the value of the type property of an activate event object.
Note: This event does not go through a "capture phase" and is dispatched directly to the target, whether the target is on the display list or not.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | Any DisplayObject instance with a listener registered for the ACTIVATE event. |
See also
| ADDED | Constant |
public static const ADDED:String = "added"
The Event.ADDED constant defines the value of the type property of
an added event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | true |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The DisplayObject instance being added to the display list.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| ADDED_TO_STAGE | Constant |
public static const ADDED_TO_STAGE:String = "addedToStage"
The Event.ADDED_TO_STAGE constant defines the value of the type
property of an addedToStage event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The DisplayObject instance being added to the on stage display list,
either directly or through the addition of a sub tree in which the DisplayObject instance is contained.
If the DisplayObject instance is being directly added, the added event occurs before this event. |
See also
| CANCEL | Constant |
public static const CANCEL:String = "cancel"
The Event.CANCEL constant defines the value of the type property of a cancel event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | A reference to the object on which the operation is canceled. |
See also
| CHANGE | Constant |
public static const CHANGE:String = "change"
The Event.CHANGE constant defines the value of the type property of a change event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | true |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object that has had its value modified.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| CLOSE | Constant |
public static const CLOSE:String = "close"
The Event.CLOSE constant defines the value of the type property of a close event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object whose connection has been closed. |
See also
| CLOSING | Constant |
public static const CLOSING:String = "closing"
The Event.CLOSING constant defines the value of the
type property of a closing event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | true; canceling this event object stops the close operation. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object whose connection is to be closed. |
See also
| COMPLETE | Constant |
public static const COMPLETE:String = "complete"
The Event.COMPLETE constant defines the value of the type property of a complete event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The network object that has completed loading. |
See also
| CONNECT | Constant |
public static const CONNECT:String = "connect"
The Event.CONNECT constant defines the value of the type property of a connect event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Socket or XMLSocket object that has established a network connection. |
See also
| DEACTIVATE | Constant |
public static const DEACTIVATE:String = "deactivate"
The Event.DEACTIVATE constant defines the value of the type property of a deactivate event object.
Note: This event does not go through a "capture phase" and is dispatched directly to the target, whether the target is on the display list or not.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | Any DisplayObject instance with a listener registered for the DEACTIVATE event. |
See also
| DISPLAYING | Constant |
public static const DISPLAYING:String = "displaying"
Defines the value of the type property of a displaying event object.
Note: This event does not go through a "capture phase" and is dispatched directly to the target, whether the target is on the display list or not.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object that is about to be displayed. |
See also
| ENTER_FRAME | Constant |
public static const ENTER_FRAME:String = "enterFrame"
The Event.ENTER_FRAME constant defines the value of the type property of
an enterFrame event object.
Note: This event does not go through a "capture phase" and is dispatched directly to the target, whether the target is on the display list or not.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | Any DisplayObject instance with a listener registered for the ENTER_FRAME event. |
See also
| EXITING | Constant |
public static const EXITING:String = "exiting"
The Event.EXITING constant defines the value of the type property of an exiting event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | true; canceling this event object stops the exit operation. |
currentTarget | The NativeApplication object. |
target | The NativeApplication object. |
See also
| FULLSCREEN | Constant |
public static const FULLSCREEN:String = "fullScreen"
The Event.FULL_SCREEN constant defines the value of the type property of a fullScreen event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Stage object. |
See also
| HTML_BOUNDS_CHANGE | Constant |
public static const HTML_BOUNDS_CHANGE:String = "htmlBoundsChange"
The Event.HTML_BOUNDS_CHANGE constant defines the value of the type property of an htmlBoundsChange event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The HTMLLoader object. |
target | The HTMLLoader object. |
See also
| HTML_DOM_INITIALIZE | Constant |
public static const HTML_DOM_INITIALIZE:String = "htmlDOMInitialize"
The Event.HTML_DOM_INITIALIZE constant defines the value of the type property
of an htmlDOMInitialize event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The HTMLLoader object. |
target | The HTMLLoader object. |
See also
| HTML_RENDER | Constant |
public static const HTML_RENDER:String = "htmlRender"
The Event.HTML_RENDER constant defines the value of the type property of an htmlRender event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The HTMLLoader object. |
target | The HTMLLoader object. |
See also
| ID3 | Constant |
public static const ID3:String = "id3"
The Event.ID3 constant defines the value of the type property of an id3 event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Sound object loading the MP3 for which ID3 data is now available.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| INIT | Constant |
public static const INIT:String = "init"
The Event.INIT constant defines the value of the type property of an init event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The LoaderInfo object associated with the SWF file being loaded. |
See also
| LOCATION_CHANGE | Constant |
public static const LOCATION_CHANGE:String = "locationChange"
The Event.LOCATION_CHANGE constant defines the value of the type property of a locationChange event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The HTMLLoader object. |
target | The HTMLLoader object. |
See also
| MOUSE_LEAVE | Constant |
public static const MOUSE_LEAVE:String = "mouseLeave"
The Event.MOUSE_LEAVE constant defines the value of the type property of a mouseLeave event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Stage object.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| NETWORK_CHANGE | Constant |
public static const NETWORK_CHANGE:String = "networkChange"
The Event.NETWORK_CHANGE constant defines the value of the type property of a networkChange event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The NativeApplication object. |
See also
| OPEN | Constant |
public static const OPEN:String = "open"
The Event.OPEN constant defines the value of the type property of an open event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The network object that has opened a connection. |
See also
| REMOVED | Constant |
public static const REMOVED:String = "removed"
The Event.REMOVED constant defines the value of the type property of
a removed event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | true |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The DisplayObject instance to be removed from the display list.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| REMOVED_FROM_STAGE | Constant |
public static const REMOVED_FROM_STAGE:String = "removedFromStage"
The Event.REMOVED_FROM_STAGE constant defines the value of the type
property of a removedFromStage event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The DisplayObject instance being removed from the on stage display list,
either directly or through the removal of a sub tree in which the DisplayObject instance is contained.
If the DisplayObject instance is being directly removed, the removed event occurs before this event. |
See also
| RENDER | Constant |
public static const RENDER:String = "render"
The Event.RENDER constant defines the value of the type property of a render event object.
Note: This event does not go through a "capture phase" and is dispatched directly to the target, whether the target is on the display list or not.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; the default behavior cannot be canceled. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | Any DisplayObject instance with a listener registered for the RENDER event. |
See also
| RESIZE | Constant |
public static const RESIZE:String = "resize"
The Event.RESIZE constant defines the value of the type property of a resize event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Stage object. |
See also
| SCROLL | Constant |
public static const SCROLL:String = "scroll"
The Event.SCROLL constant defines the value of the type property of a scroll event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The TextField object that has been scrolled.
The target property is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| SELECT | Constant |
public static const SELECT:String = "select"
The Event.SELECT constant defines the value of the type property of a select event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object on which an item has been selected. |
See also
| SOUND_COMPLETE | Constant |
public static const SOUND_COMPLETE:String = "soundComplete"
The Event.SOUND_COMPLETE constant defines the value of the type property of a soundComplete event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The Sound object on which a sound has finished playing. |
See also
| TAB_CHILDREN_CHANGE | Constant |
public static const TAB_CHILDREN_CHANGE:String = "tabChildrenChange"
The Event.TAB_CHILDREN_CHANGE constant defines the value of the type
property of a tabChildrenChange event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | true |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object whose tabChildren flag has changed.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| TAB_ENABLED_CHANGE | Constant |
public static const TAB_ENABLED_CHANGE:String = "tabEnabledChange"
The Event.TAB_ENABLED_CHANGE constant defines the value of the type
property of a tabEnabledChange event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | true |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The InteractiveObject whose tabEnabled flag has changed.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| TAB_INDEX_CHANGE | Constant |
public static const TAB_INDEX_CHANGE:String = "tabIndexChange"
The Event.TAB_INDEX_CHANGE constant defines the value of the
type property of a tabIndexChange event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | true |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The object whose tabIndex has changed.
The target is not always the object in the display list
that registered the event listener. Use the currentTarget
property to access the object in the display list that is currently processing the event. |
See also
| UNLOAD | Constant |
public static const UNLOAD:String = "unload"
The Event.UNLOAD constant defines the value of the type property of an unload event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
currentTarget | The object that is actively processing the Event object with an event listener. |
target | The LoaderInfo object associated with the SWF file being unloaded or replaced. |
See also
| USER_IDLE | Constant |
public static const USER_IDLE:String = "userIdle"
The Event.USER_IDLE constant defines the value of the type property of a userIdle event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
target | The NativeApplication object. |
See also
| USER_PRESENT | Constant |
public static const USER_PRESENT:String = "userPresent"
The Event.USER_PRESENT constant defines the value of the type property of a userPresent event object.
This event has the following properties:
| Property | Value |
|---|---|
bubbles | false |
cancelable | false; there is no default behavior to cancel. |
target | The NativeApplication object. |
See also
EventExample class and the
Square custom class to demonstrate how to manage event bubbling.
package {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
public class EventExample extends Sprite {
public function EventExample() {
var square_0:Square = new Square(300, 0x336633);
addChild(square_0);
var square_1:Square = new Square(250, 0x669966);
square_0.addChild(square_1);
var square_2:Square = new Square(200, 0x66CC66);
square_1.addChild(square_2);
var square_3:Square = new Square(150, 0xAA0000);
square_3.shouldBubble = false;
square_2.addChild(square_3);
var square_4:Square = new Square(100, 0x66FF66);
square_3.addChild(square_4);
var square_5:Square = new Square(50, 0xCC0000);
square_5.shouldBubble = false;
square_4.addChild(square_5);
this.addEventListener(MouseEvent.CLICK, clickHandler);
}
private function clickHandler(e:Event):void {
trace(">> stage: " + e.type + " event from " + e.target.name + " called on " + this.name);
trace(">> --------------------------------------------");
}
}
}
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
class Square extends Sprite {
private var sideLen:int;
private var color:Number;
public var shouldBubble:Boolean = true;
public function Square(sideLen:int, color:Number) {
this.sideLen = sideLen;
this.color = color;
init();
draw();
}
private function init():void {
buttonMode = true;
this.addEventListener(MouseEvent.CLICK, firstClickHandler);
this.addEventListener(MouseEvent.CLICK, secondClickHandler);
this.addEventListener(MouseEvent.CLICK, thirdClickHandler);
}
private function draw():void {
this.graphics.beginFill(color);
this.graphics.drawRect(0, 0, sideLen, sideLen);
}
private function firstClickHandler(e:Event):void {
trace(">> 1e: " + e.type + " event from " + e.target.name + " called on " + this.name);
if(!shouldBubble) {
e.stopPropagation();
}
}
private function secondClickHandler(e:Event):void {
trace(">> 2e: " + e.type + " event from " + e.target.name + " called on " + this.name);
if(!shouldBubble) {
e.stopImmediatePropagation();
trace(">> --------------------------------------------");
}
}
private function thirdClickHandler(e:Event):void {
trace(">> 3e: " + e.type + " event from " + e.target.name + " called on " + this.name);
}
}ADDED and ADDED_TO_STAGE events,
as well as the difference between REMOVED and REMOVED_FROM_STAGE
events. Clicking a sprite will remove it from the stage as well as everything nested within it.
For example, clicking the largest sprite will cause a REMOVED event
as well as three REMOVED_FROM_STAGE events to fire.
package {
import flash.display.Sprite;
import flash.events.*;
public class EventExample2 extends Sprite {
public function EventExample2():void {
var parentSprite:Sprite = createSprite("parentSprite",200);
var childSprite:Sprite = createSprite("childSprite",100);
var childOfChildSprite:Sprite = createSprite("childOfChildSprite",50);
trace(":: Adding to Stage ::");
this.addChild(parentSprite);
trace(":: Adding to Stage ::");
parentSprite.addChild(childSprite);
trace(":: Adding to Stage ::");
childSprite.addChild(childOfChildSprite);
}
private function createSprite(name:String,size:uint):Sprite {
trace(":: Creating Sprite ::");
var newSprite:Sprite = new Sprite();
newSprite.name = name;
newSprite.graphics.beginFill(0xFFFFFF * Math.random(),1);
newSprite.graphics.drawRect(0,0,size,size);
newSprite.graphics.endFill();
newSprite.addEventListener(Event.ADDED, spriteAdded);
newSprite.addEventListener(Event.ADDED_TO_STAGE, spriteAddedToStage);
newSprite.addEventListener(Event.REMOVED, spriteRemoved);
newSprite.addEventListener(Event.REMOVED_FROM_STAGE, spriteRemovedFromStage);
newSprite.addEventListener(MouseEvent.CLICK, remove);
return newSprite;
}
private function remove(event:Event) {
if(event.target == event.currentTarget) {
trace(":: Removing Clicked Sprite ::");
var target:Sprite = Sprite(event.target);
target.parent.removeChild(target);
}
}
private function spriteRemovedFromStage(event:Event):void {
trace("REMOVED_FROM_STAGE: " + event.target.name + " : " + event.currentTarget.name);
}
private function spriteRemoved(event:Event):void {
trace("REMOVED: " + event.target.name + " from " + event.currentTarget.name);
}
private function spriteAddedToStage(event:Event):void {
trace("ADDED_TO_STAGE: " + event.target.name + " : " + event.currentTarget.name);
}
private function spriteAdded(event:Event):void {
trace("ADDED: " + event.target.name + " within " + event.currentTarget.name);
}
}
}