class Event
package openfl.events
extended by AccelerometerEvent, ActivityEvent, ContextMenuEvent, DNSResolverEvent, DatagramSocketDataEvent, DeviceRotationEvent, FileListEvent, FocusEvent, GameInputEvent, GeolocationEvent, HTTPStatusEvent, InvokeEvent, KeyboardEvent, MouseEvent, NativeProcessExitEvent, NativeWindowBoundsEvent, NativeWindowDisplayStateEvent, NetStatusEvent, OutputProgressEvent, PermissionEvent, ProgressEvent, RenderEvent, SampleDataEvent, ServerSocketConnectEvent, TextEvent, TimerEvent, TouchEvent, VideoTextureEvent
Available on all platforms
The Event class is used as the base class for the creation of Event objects, which are passed as parameters to event listeners when an event occurs.
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. The OpenFL 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 stopPropagation()
or
stopImmediatePropagation()
method.
Other sources of information include:
- A useful description about the timing of events, code execution, and rendering at runtime in Ted Patrick's blog entry: <a Flash Player Mental Model - The Elastic Racetrack.
- A blog entry by Johannes Tacskovics about the timing of frame events, such as ENTER_FRAME, EXIT_FRAME: The MovieClip Lifecycle.
- An article by Trevor McCauley about the order of ActionScript operations: Order of Operations in ActionScript.
- A blog entry by Matt Przybylski on creating custom events: AS3: Custom Events.
See also:
Static variables
staticinlineread onlyACTIVATE:EventType<Event> = "activate"
The ACTIVATE
constant defines the value of the type
property of an
activate
event object.
Note: This event has neither a "capture phase" nor a "bubble
phase", which means that event listeners must be added directly to any
potential targets, whether the target is on the display list or not.
AIR for TV devices never automatically dispatch this event. You can, however, dispatch it manually.
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. |
staticinlineread onlyADDED:EventType<Event> = "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. |
staticinlineread onlyADDED_TO_STAGE:EventType<Event> = "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. |
staticinlineread onlyCANCEL:EventType<Event> = "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. |
staticinlineread onlyCHANGE:EventType<Event> = "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. |
staticinlineread onlyCLEAR:EventType<Event> = "clear"
The Event.CLEAR
constant defines the value of the type
property of
a clear
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 | Any InteractiveObject instance with a listener registered for the clear event. |
Note: TextField objects do not dispatch clear
, copy
, cut
,
paste
, or selectAll
events. TextField objects always include Cut,
Copy, Paste, Clear, and Select All commands in the context menu. You
cannot remove these commands from the context menu for TextField
objects. For TextField objects, selecting these commands (or their
keyboard equivalents) does not generate clear
, copy
, cut
,
paste
, or selectAll
events. However, other classes that extend the
InteractiveObject class, including components built using the Flash
Text Engine (FTE), will dispatch these events in response to user
actions such as keyboard shortcuts and context menus.
staticinlineread onlyCLOSE:EventType<Event> = "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. |
staticinlineread onlyCLOSING:EventType<Event> = "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 has been closed. |
staticinlineread onlyCOMPLETE:EventType<Event> = "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. |
staticinlineread onlyCONNECT:EventType<Event> = "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. |
staticinlineread onlyCONTEXT3D_CREATE:EventType<Event> = "context3DCreate"
The Event.CONTEXT3D_CREATE
constant defines the value of the type property of a
context3Dcreate
event object. This event is raised only by Stage3D objects in
response to either a call to Stage3D.requestContext3D
or in response to an OS
triggered reset of the Context3D bound to the Stage3D object. Inspect the
Stage3D.context3D
property to get the newly created Context3D object.
staticinlineread onlyCOPY:EventType<Event> = "copy"
Defines the value of the type
property of a copy
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 | Any InteractiveObject instance with a listener registered for the copy event. |
Note: TextField objects do not dispatch clear
, copy
, cut
,
paste
, or selectAll
events. TextField objects always include Cut,
Copy, Paste, Clear, and Select All commands in the context menu. You
cannot remove these commands from the context menu for TextField
objects. For TextField objects, selecting these commands (or their
keyboard equivalents) does not generate clear
, copy
, cut
,
paste
, or selectAll
events. However, other classes that extend the
InteractiveObject class, including components built using the Flash
Text Engine (FTE), will dispatch these events in response to user
actions such as keyboard shortcuts and context menus.
staticinlineread onlyCUT:EventType<Event> = "cut"
Defines the value of the type
property of a cut
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 | Any InteractiveObject instance with a listener registered for the cut event. |
Note: TextField objects do not dispatch clear
, copy
, cut
,
paste
, or selectAll
events. TextField objects always include Cut,
Copy, Paste, Clear, and Select All commands in the context menu. You
cannot remove these commands from the context menu for TextField
objects. For TextField objects, selecting these commands (or their
keyboard equivalents) does not generate clear
, copy
, cut
,
paste
, or selectAll
events. However, other classes that extend the
InteractiveObject class, including components built using the Flash
Text Engine (FTE), will dispatch these events in response to user
actions such as keyboard shortcuts and context menus.
staticinlineread onlyDEACTIVATE:EventType<Event> = "deactivate"
The Event.DEACTIVATE
constant defines the value of the type
property of a deactivate
event object.
Note: This event has neither a "capture phase" nor a "bubble
phase", which means that event listeners must be added directly to any
potential targets, whether the target is on the display list or not.
AIR for TV devices never automatically dispatch this event. You can, however, dispatch it manually.
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. |
staticinlineread onlyENTER_FRAME:EventType<Event> = "enterFrame"
The Event.ENTER_FRAME
constant defines the value of the type
property of an enterFrame
event object.
Note: This event has neither a "capture phase" nor a "bubble
phase", which means that event listeners must be added directly to any
potential targets, 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 enterFrame event. |
staticinlineread onlyEXITING:EventType<Event> = "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. |
staticinlineread onlyEXIT_FRAME:EventType<Event> = "exitFrame"
The Event.EXIT_FRAME
constant defines the value of the type
property of an exitFrame
event object.
Note: This event has neither a "capture phase" nor a "bubble
phase", which means that event listeners must be added directly to any
potential targets, 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 enterFrame event. |
staticinlineread onlyFRAME_CONSTRUCTED:EventType<Event> = "frameConstructed"
The Event.FRAME_CONSTRUCTED
constant defines the value of the type
property of an frameConstructed
event object.
Note: This event has neither a "capture phase" nor a "bubble
phase", which means that event listeners must be added directly to any
potential targets, 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 frameConstructed event. |
staticinlineread onlyFRAME_LABEL:EventType<Event> = "frameLabel"
The Event.FRAME_LABEL
constant defines the value of the type property of a
frameLabel
event object.
Note: This event has neither a "capture phase" nor a "bubble phase", which means that event listeners must be added directly to FrameLabel objects.
This event has the following properties:
Property | Value |
---|---|
bubbles | false |
cancelable | false ; there is no default behavior to cancel. |
currentTarget | The FrameLabel object that is actively processing the Event object with an event listener. |
target | Any FrameLabel instance with a listener registered for the frameLabel event. |
staticinlineread onlyFULLSCREEN:EventType<Event> = "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. |
staticinlineread onlyID3:EventType<Event> = "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. |
staticinlineread onlyINIT:EventType<Event> = "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. |
staticinlineread onlyMOUSE_LEAVE:EventType<Event> = "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. |
staticinlineread onlyOPEN:EventType<Event> = "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. |
staticinlineread onlyPASTE:EventType<Event> = "paste"
The Event.PASTE
constant defines the value of the type
property of
a paste
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 | Any InteractiveObject instance with a listener registered for the paste event. |
Note: TextField objects do not dispatch clear
, copy
, cut
,
paste
, or selectAll
events. TextField objects always include Cut,
Copy, Paste, Clear, and Select All commands in the context menu. You
cannot remove these commands from the context menu for TextField
objects. For TextField objects, selecting these commands (or their
keyboard equivalents) does not generate clear
, copy
, cut
,
paste
, or selectAll
events. However, other classes that extend the
InteractiveObject class, including components built using the Flash
Text Engine (FTE), will dispatch these events in response to user
actions such as keyboard shortcuts and context menus.
staticinlineread onlyREMOVED:EventType<Event> = "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. |
staticinlineread onlyREMOVED_FROM_STAGE:EventType<Event> = "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. |
staticinlineread onlyRENDER:EventType<Event> = "render"
The Event.RENDER
constant defines the value of the type
property
of a render
event object.
Note: This event has neither a "capture phase" nor a "bubble
phase", which means that event listeners must be added directly to any
potential targets, 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. |
staticinlineread onlyRESIZE:EventType<Event> = "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. |
staticinlineread onlySCROLL:EventType<Event> = "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. |
staticinlineread onlySELECT:EventType<Event> = "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. |
staticinlineread onlySELECT_ALL:EventType<Event> = "selectAll"
The Event.SELECT_ALL
constant defines the value of the type
property of a selectAll
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 | Any InteractiveObject instance with a listener registered for the selectAll event. |
Note: TextField objects do not dispatch clear
, copy
, cut
,
paste
, or selectAll
events. TextField objects always include Cut,
Copy, Paste, Clear, and Select All commands in the context menu. You
cannot remove these commands from the context menu for TextField
objects. For TextField objects, selecting these commands (or their
keyboard equivalents) does not generate clear
, copy
, cut
,
paste
, or selectAll
events. However, other classes that extend the
InteractiveObject class, including components built using the Flash
Text Engine (FTE), will dispatch these events in response to user
actions such as keyboard shortcuts and context menus.
staticinlineread onlySOUND_COMPLETE:EventType<Event> = "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 SoundChannel object in which a sound has finished playing. |
staticinlineread onlyTAB_CHILDREN_CHANGE:EventType<Event> = "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. |
staticinlineread onlyTAB_ENABLED_CHANGE:EventType<Event> = "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. |
staticinlineread onlyTAB_INDEX_CHANGE:EventType<Event> = "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. |
staticinlineread onlyTEXTURE_READY:EventType<Event> = "textureReady"
The Event.TEXTURE_READY
constant defines the value of the type property of a
textureReady
event object. This event is dispatched by Texture and CubeTexture
objects to signal the completion of an asynchronous upload. Request an asynchronous
upload by using the uploadCompressedTextureFromByteArray()
method on Texture or
CubeTexture. This event neither bubbles nor is cancelable.
staticinlineread onlyUNLOAD:EventType<Event> = "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. |
Constructor
new(type:String, bubbles:Bool = false, cancelable:Bool = false)
Creates an Event object to pass as a parameter to event listeners.
Parameters:
type | The type of the event, accessible as
|
---|---|
bubbles | Determines whether the Event object participates in the
bubbling stage of the event flow. The default value is
|
cancelable | Determines whether the Event object can be canceled. The
default values is |
Variables
read onlybubbles:Bool
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.
read onlycancelable:Bool
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
.
read onlycurrentTarget:Object
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.
read onlyeventPhase:EventPhase
The current phase in the event flow. This property can contain the following numeric values:
- The capture phase(
EventPhase.CAPTURING_PHASE
). - The target phase(
EventPhase.AT_TARGET
). - The bubbling phase(
EventPhase.BUBBLING_PHASE
).
Methods
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()
.
Returns:
A new Event object that is identical to the original.
formatToString(className:String, ?p1:String, ?p2:String, ?p3:String, ?p4:String, ?p5:String):String
A utility function for implementing the toString()
method in custom
OpenFL Event classes. Overriding the toString()
method is
recommended, but not required.
class PingEvent extends Event {
var URL:String;
public function new() {
super();
}
public override function toString():String {
return formatToString("PingEvent", "type", "bubbles", "cancelable", "eventPhase", "URL");
}
}
Parameters:
className | The name of your custom Event class. In the previous
example, the |
---|
Returns:
The name of your custom Event class and the String value of
your ...arguments
parameter.
isDefaultPrevented():Bool
Checks whether the preventDefault()
method has been called on
the event. If the preventDefault()
method has been called,
returns true
; otherwise, returns false
.
Returns:
If preventDefault()
has been called, returns
true
; otherwise, returns false
.
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.
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.
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.