Package | mx.core |
Class | public class ScrollControlBase |
Inheritance | ScrollControlBase UIComponent FlexSprite flash.display.Sprite |
Subclasses | ListBase, TextArea |
The <ScrollControlBase>
tag inherits all the tag attributes
of its superclass, and adds the following tag attributes:
<mx:tagname Properties border="object of border skin style" horizontalScrollPolicy="off|on|auto" horizontalScrollPosition="0" liveScrolling="true|false" maxHorizontalScrollPosition="NaN" maxVerticalScrollPosition="NaN" scrollTipFunction="undefined" showScrollTips="false|true" verticalScrollPolicy="auto|off|on" verticalScrollPosition="0" Styles backgroundAlpha="1.0" backgroundColor="undefined" backgroundImage="undefined" backgroundSize="auto" borderColor="0xAAB3B3" borderSides="left top right bottom" borderSkin="ClassReference('mx.skins.halo.HaloBorder')" borderStyle="inset" borderThickness="1" color="0x0B333C" cornerRadius="0" disabledColor="0xAAB3B3" dropShadowColor="0x000000" dropShadowEnabled="false" fontFamily="Verdana" fontSize="10" fontStyle="normal|italic" fontWeight="normal|bold" horizontalScrollBarStyleName="" leading="2" shadowDirection="center" shadowDistance="2" textAlign="value; see detail." textDecoration="none|underline" textIndent="0" verticalScrollBarStyleName="" Events scroll="No default" />
Property | Defined by | ||
---|---|---|---|
activeEffects : Array
The list of effects that are currently playing on the component,
as an Array of EffectInstance instances.
| UIComponent | ||
automationDelegate : Object
The delegate object that handles the automation-related functionality.
| UIComponent | ||
automationName : String
Name that can be used as an identifier for this object.
| UIComponent | ||
automationTabularData : Object
An implementation of the
IAutomationTabularData interface, which
can be used to retrieve the data. | UIComponent | ||
automationValue : Array
This value generally corresponds to the rendered appearance of the
object and should be usable for correlating the identifier with
the object as it appears visually within the application.
| UIComponent | ||
baselinePosition : Number
The y-coordinate of the baseline
of the first line of text of the component.
| UIComponent | ||
borderMetrics : EdgeMetrics
[read-only]
Returns an EdgeMetrics object that has four properties:
left , top , right ,
and bottom . | ScrollControlBase | ||
cacheHeuristic : Boolean
Used by Flex to suggest bitmap caching for the object.
| UIComponent | ||
cachePolicy : String
Specifies the bitmap caching policy for this object.
| UIComponent | ||
className : String
The name of this instance's class, such as
"Button" . | UIComponent | ||
contentMouseX : Number
Returns the x position of the mouse, in the content coordinate system.
| UIComponent | ||
contentMouseY : Number
Returns the y position of the mouse, in the content coordinate system.
| UIComponent | ||
currentLooperData : Object
When using this component as the child of a DataLooper element, this holds the current element's corresponding looping data.
| UIComponent | ||
currentState : String
The current view state of the component.
| UIComponent | ||
cursorManager : ICursorManager
Gets the CursorManager that controls the cursor for this component
and its peers.
| UIComponent | ||
descriptor : UIComponentDescriptor
Reference to the UIComponentDescriptor, if any, that was used
by the
createComponentFromDescriptor() method to create this
UIComponent instance. | UIComponent | ||
document : Object
A reference to the document object associated with this UIComponent.
| UIComponent | ||
doubleClickEnabled : Boolean
Specifies whether the UIComponent object receives
doubleClick events. | UIComponent | ||
enabled : Boolean
Whether the component can accept user interaction.
| UIComponent | ||
errorString : String
The text that will be displayed by a component's error tip when a
component is monitored by a Validator and validation fails.
| UIComponent | ||
explicitHeight : Number
Number that specifies the explicit height of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
explicitMaxHeight : Number
Number that specifies the maximum height of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
explicitMaxWidth : Number
Number that specifies the maximum width of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
explicitMinHeight : Number
Number that specifies the minimum height of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
explicitMinWidth : Number
Number that specifies the minimum width of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
explicitWidth : Number
Number that specifies the explicit width of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
flexContextMenu : IFlexContextMenu
The context menu for this UIComponent.
| UIComponent | ||
focusEnabled : Boolean
Indicates whether the component can receive focus when tabbed to.
| UIComponent | ||
focusManager : IFocusManager
Gets the FocusManager that controls focus for this component
and its peers.
| UIComponent | ||
focusPane : Sprite
The focus pane associated with this object.
| UIComponent | ||
globalX : Number | UIComponent | ||
globalY : Number | UIComponent | ||
height : Number
Number that specifies the height of the component, in pixels,
in the parent's coordinates.
| UIComponent | ||
horizontalScrollPolicy : String
A property that indicates whether the horizontal scroll
bar is always on, always off,
or automatically changes based on the parameters passed to the
setScrollBarProperties() method. | ScrollControlBase | ||
horizontalScrollPosition : Number
The offset into the content from the left edge.
| ScrollControlBase | ||
id : String
ID of the component.
| UIComponent | ||
includeInLayout : Boolean
Specifies whether this component is included in the layout of the
parent container.
| UIComponent | ||
inheritingStyles : Object
The beginning of this component's chain of inheriting styles.
| UIComponent | ||
initialized : Boolean
A flag that determines if an object has been through all three phases
of layout: commitment, measurement, and layout (provided that any were required).
| UIComponent | ||
instanceIndex : int
The index of a repeated component.
| UIComponent | ||
instanceIndices : Array
An Array containing the indices required to reference
this UIComponent object from its parent document.
| UIComponent | ||
isDocument : Boolean
Determines whether this UIComponent instance is a document object,
that is, whether it is at the top of the hierarchy of a Flex
application, MXML component, or ActionScript component.
| UIComponent | ||
isPopUp : Boolean
Set to
true by the PopUpManager to indicate
that component has been popped up. | UIComponent | ||
liveScrolling : Boolean = true
A flag that indicates whether scrolling is live as the
scrollbar thumb is moved
or the view is not updated until the thumb is released.
| ScrollControlBase | ||
maxHeight : Number
Number that specifies the maximum height of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
maxHorizontalScrollPosition : Number
The maximum value for the
horizontalScrollPosition property. | ScrollControlBase | ||
maxVerticalScrollPosition : Number
The maximum value for the
verticalScrollPosition property. | ScrollControlBase | ||
maxWidth : Number
Number that specifies the maximum width of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
measuredHeight : Number
The default height of the component, in pixels.
| UIComponent | ||
measuredMinHeight : Number
The default minimum height of the component, in pixels.
| UIComponent | ||
measuredMinWidth : Number
The default minimum width of the component, in pixels.
| UIComponent | ||
measuredWidth : Number
The default width of the component, in pixels.
| UIComponent | ||
minHeight : Number
Number that specifies the minimum height of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
minWidth : Number
Number that specifies the minimum width of the component,
in pixels, in the component's coordinates.
| UIComponent | ||
miscHolder : Object
A utility holder for any various properties
| UIComponent | ||
moduleFactory : IFlexModuleFactory
The moduleFactory that is used to create TextFields in the correct SWF context.
| UIComponent | ||
mouseFocusEnabled : Boolean
Whether you can receive focus when clicked on.
| UIComponent | ||
move_enableProtection : Boolean = false | UIComponent | ||
nestLevel : int
Depth of this object in the containment hierarchy.
| UIComponent | ||
nonInheritingStyles : Object
The beginning of this component's chain of non-inheriting styles.
| UIComponent | ||
numAutomationChildren : int
The number of automation children this container has.
| UIComponent | ||
owner : DisplayObjectContainer
The owner of this UIComponent.
| UIComponent | ||
parent : DisplayObjectContainer
The parent container or component for this component.
| UIComponent | ||
parentApplication : Object
A reference to the Application object that contains this UIComponent
instance.
| UIComponent | ||
parentDocument : Object
A reference to the parent document object for this UIComponent.
| UIComponent | ||
percentHeight : Number
Number that specifies the height of a component as a percentage
of its parent's size.
| UIComponent | ||
percentWidth : Number
Number that specifies the width of a component as a percentage
of its parent's size.
| UIComponent | ||
processedDescriptors : Boolean
Set to
true after immediate or deferred child creation,
depending on which one happens. | UIComponent | ||
repeater : IRepeater
A reference to the Repeater object
in the parent document that produced this UIComponent.
| UIComponent | ||
repeaterIndex : int
The index of the item in the data provider
of the Repeater that produced this UIComponent.
| UIComponent | ||
repeaterIndices : Array
An Array containing the indices of the items in the data provider
of the Repeaters in the parent document that produced this UIComponent.
| UIComponent | ||
repeaters : Array
An Array containing references to the Repeater objects
in the parent document that produced this UIComponent.
| UIComponent | ||
scaleX : Number
Number that specifies the horizontal scaling factor.
| UIComponent | ||
scaleY : Number
Number that specifies the vertical scaling factor.
| UIComponent | ||
screen : Rectangle
Returns an object that contains the size and position of the base
drawing surface for this object.
| UIComponent | ||
scrollTipFunction : Function
A function that computes the string to be displayed as the ScrollTip.
| ScrollControlBase | ||
setActualSize_enableProtection : Boolean = false | UIComponent | ||
setVisible_enableProtection : Boolean = true | UIComponent | ||
showInAutomationHierarchy : Boolean
A flag that determines if an automation object
shows in the automation hierarchy.
| UIComponent | ||
showScrollTips : Boolean = false
A flag that indicates whether a tooltip should appear
near the scroll thumb when it is being dragged.
| ScrollControlBase | ||
states : Array
The view states that are defined for this component.
| UIComponent | ||
styleClassOverridesInline : Boolean = true
Specifies if class-specific styles (as defined by the
styleName property) override inline styles. | UIComponent | ||
styleDeclaration : CSSStyleDeclaration
Storage for the inline inheriting styles on this object.
| UIComponent | ||
styleName : Object
The class style used by this component.
| UIComponent | ||
systemManager : ISystemManager
Returns the SystemManager object used by this component.
| UIComponent | ||
toolTip : String
Text to display in the ToolTip.
| UIComponent | ||
transitions : Array
An Array of Transition objects, where each Transition object defines a
set of effects to play when a view state change occurs.
| UIComponent | ||
tweeningProperties : Array
Array of properties that are currently being tweened on this object.
| UIComponent | ||
uid : String
A unique identifier for the object.
| UIComponent | ||
updateCompletePendingFlag : Boolean
A flag that determines if an object has been through all three phases
of layout validation (provided that any were required).
| UIComponent | ||
validationSubField : String
Used by a validator to associate a subfield with this component.
| UIComponent | ||
verticalScrollPolicy : String
A property that indicates whether the vertical scroll bar is always on, always off,
or automatically changes based on the parameters passed to the
setScrollBarProperties() method. | ScrollControlBase | ||
verticalScrollPosition : Number
The offset into the content from the top edge.
| ScrollControlBase | ||
viewMetrics : EdgeMetrics
[read-only]
An EdgeMetrics object taking into account the scroll bars,
if visible.
| ScrollControlBase | ||
visible : Boolean
Controls the visibility of this UIComponent.
| UIComponent | ||
visible_unprotected : Boolean
If setVisible_enableProtection is enabled, this allows access to determine what the pseudo-state is -- that is, what's been requested, regardless of any prevention of default behavior.
| UIComponent | ||
width : Number
Number that specifies the width of the component, in pixels,
in the parent's coordinates.
| UIComponent | ||
x : Number
Number that specifies the component's horizontal position,
in pixels, within its parent container.
| UIComponent | ||
xmlDescriptor : XML
For certain dynamically created elements, this represents the XML node used to create that element.
| UIComponent | ||
y : Number
Number that specifies the component's vertical position,
in pixels, within its parent container.
| UIComponent |
Property | Defined by | ||
---|---|---|---|
border : IFlexDisplayObject
The border object.
| ScrollControlBase | ||
horizontalScrollBar : ScrollBar
The horizontal scroll bar.
| ScrollControlBase | ||
maskShape : Shape
The mask.
| ScrollControlBase | ||
scrollAreaChanged : Boolean
A flag that the scrolling area changed due to the appearance or disappearance of
scrollbars.
| ScrollControlBase | ||
unscaledHeight : Number
A convenience method for determining the unscaled height
of the component.
| UIComponent | ||
unscaledWidth : Number
A convenience method for determining the unscaled width
of the component
All of a component's drawing and child layout should be done
within a bounding rectangle of this width, which is also passed
as an argument to
updateDisplayList() . | UIComponent | ||
verticalScrollBar : ScrollBar
The vertical scroll bar.
| ScrollControlBase |
Method | Defined by | ||
---|---|---|---|
Constructor.
| ScrollControlBase | ||
callLater(method:Function, args:Array = null):void
Queues a function to be called later.
| UIComponent | ||
clearStyle(styleProp:String):void
Deletes a style property from this component instance.
| UIComponent | ||
contentToGlobal(point:Point):Point
Converts a
Point object from content coordinates to global coordinates. | UIComponent | ||
contentToLocal(point:Point):Point
Converts a
Point object from content to local coordinates. | UIComponent | ||
createAutomationIDPart(child:IAutomationObject):Object
Returns a set of properties that identify the child within
this container.
| UIComponent | ||
createReferenceOnParentDocument(parentDocument:IFlexDisplayObject):void
Creates an
id reference to this IUIComponent object
on its parent document object. | UIComponent | ||
deleteReferenceOnParentDocument(parentDocument:IFlexDisplayObject):void
Deletes the
id reference to this IUIComponent object
on its parent document object. | UIComponent | ||
Returns a UITextFormat object corresponding to the text styles
for this UIComponent.
| UIComponent | ||
dispatchEvent(event:Event):Boolean
Dispatches an event into the event flow.
| UIComponent | ||
drawFocus(isFocused:Boolean):void
Shows or hides the focus indicator around this component.
| UIComponent | ||
drawRoundRect(x:Number, y:Number, w:Number, h:Number, r:Object = null, c:Object = null, alpha:Object = null, rot:Object = null, gradient:String = null, ratios:Array = null, hole:Object = null):void
Programatically draws a rectangle into this skin's Graphics object.
| UIComponent | ||
effectFinished(effectInst:IEffectInstance):void
Called by the effect instance when it stops playing on the component.
| UIComponent | ||
effectStarted(effectInst:IEffectInstance):void
Called by the effect instance when it starts playing on the component.
| UIComponent | ||
endEffectsStarted():void
Ends all currently playing effects on the component.
| UIComponent | ||
executeBindings(recurse:Boolean = false):void
Executes the data bindings into this UIComponent object.
| UIComponent | ||
finishPrint(obj:Object, target:IFlexDisplayObject):void
Called after printing is complete.
| UIComponent | ||
getAutomationChildAt(index:int):IAutomationObject
Provides the automation object at the specified index.
| UIComponent | ||
getClassStyleDeclarations():Array
Finds the type selectors for this UIComponent instance.
| UIComponent | ||
getConstraintValue(constraintName:String):*
Returns a layout constraint value, which is the same as
getting the constraint style for this component.
| UIComponent | ||
getDescendantByName(name:String):DisplayObject
Searches all children for the first child named with the passed value; returns that child, or null if not found.
| UIComponent | ||
getDescendantsByName(name:String):Array
Searches all children for all children named with the passed value; returns an array with those children, or an empty array if none found.
| UIComponent | ||
getExplicitOrMeasuredHeight():Number
A convenience method for determining whether to use the
explicit or measured height
| UIComponent | ||
getExplicitOrMeasuredWidth():Number
A convenience method for determining whether to use the
explicit or measured width
| UIComponent | ||
getFocus():InteractiveObject
Gets the object that currently has focus.
| UIComponent | ||
getRepeaterItem(whichRepeater:int = -1):Object
Returns the item in the
dataProvider that was used
by the specified Repeater to produce this Repeater, or
null if this Repeater isn't repeated. | UIComponent | ||
getStyle(styleProp:String):*
Gets a style property that has been set anywhere in this
component's style lookup chain.
| UIComponent | ||
getVisibleRect(targetParent:DisplayObject = null):Rectangle
MOVED OVER FROM SDK 3.2 UIComponent - Allows for popped-up alerts to be displayed correctly - NGR MOVED 11-20-08
| UIComponent | ||
globalToContent(point:Point):Point
Converts a
Point object from global to content coordinates. | UIComponent | ||
horizontalGradientMatrix(x:Number, y:Number, width:Number, height:Number):Matrix
Returns a box Matrix which can be passed to the
drawRoundRect() method
as the rot parameter when drawing a horizontal gradient. | UIComponent | ||
initialize():void
Initializes the internal structure of this component.
| UIComponent | ||
initializeRepeaterArrays(parent:IRepeaterClient):void
Initializes various properties which keep track of repeated instances
of this component.
| UIComponent | ||
invalidateDisplayList():void
Marks a component so that its
updateDisplayList()
method gets called during a later screen update. | UIComponent | ||
invalidateProperties():void
Marks a component so that its
commitProperties()
method gets called during a later screen update. | UIComponent | ||
invalidateSize():void
Marks a component so that its
measure()
method gets called during a later screen update. | UIComponent | ||
localToContent(point:Point):Point
Converts a
Point object from local to content coordinates. | UIComponent | ||
measureHTMLText(htmlText:String):TextLineMetrics
Measures the specified HTML text, which may contain HTML tags such
as
<font> and <b> ,
assuming that it is displayed
in a single-line UITextField using a UITextFormat
determined by the styles of this UIComponent. | UIComponent | ||
measureText(text:String):TextLineMetrics
Measures the specified text, assuming that it is displayed
in a single-line UITextField using a UITextFormat
determined by the styles of this UIComponent.
| UIComponent | ||
move(x:Number, y:Number):void
Moves the component to a specified position within its parent.
| UIComponent | ||
move_unprotected(x:Number, y:Number):void
Same as move, but cannot be prevented via the protection_move event.
| UIComponent | ||
notifyStyleChangeInChildren(styleProp:String, recursive:Boolean):void
Propagates style changes to the children.
| UIComponent | ||
owns(child:DisplayObject):Boolean
Returns
true if the chain of owner properties
points from child to this UIComponent. | UIComponent | ||
parentChanged(p:DisplayObjectContainer):void
Called by Flex when a UIComponent object is added to or removed from a parent.
| UIComponent | ||
prepareToPrint(target:IFlexDisplayObject):Object
Prepares an IFlexDisplayObject for printing.
| UIComponent | ||
regenerateStyleCache(recursive:Boolean):void
Builds or rebuilds the CSS style cache for this component
and, if the
recursive parameter is true ,
for all descendants of this component as well. | UIComponent | ||
registerEffects(effects:Array):void
For each effect event, registers the EffectManager
as one of the event listeners.
| UIComponent | ||
replayAutomatableEvent(event:Event):Boolean
Replays the specified event.
| UIComponent | ||
resolveAutomationIDPart(criteria:Object):Array
Resolves a child by using the id provided.
| UIComponent | ||
resumeBackgroundProcessing():void
[static]
Resumes the background processing of methods
queued by
callLater() , after a call to
suspendBackgroundProcessing() . | UIComponent | ||
setActualSize(w:Number, h:Number):void
Sizes the object.
| UIComponent | ||
setActualSize_unprotected(w:Number, h:Number):void
Same as setActualSize, but is not cancelable via the protection_size event.
| UIComponent | ||
setConstraintValue(constraintName:String, value:*):void
Sets a layout constraint value, which is the same as
setting the constraint style for this component.
| UIComponent | ||
setCurrentState(stateName:String, playTransition:Boolean = true):void
Set the current state.
| UIComponent | ||
setFocus():void
Sets the focus to this component.
| UIComponent | ||
setStyle(styleProp:String, newValue:*):void
Sets a style property on this component instance.
| UIComponent | ||
setVisible(value:Boolean, noEvent:Boolean = false):void
Called when the
visible property changes. | UIComponent | ||
setVisible_unprotected(value:Boolean, noEvent:Boolean = false):void
Same as setVisible, but cannot be prevented.
| UIComponent | ||
styleChanged(styleProp:String):void
Detects changes to style properties.
| UIComponent | ||
stylesInitialized():void
Flex calls the
stylesInitialized() method when
the styles for a component are first initialized. | UIComponent | ||
suspendBackgroundProcessing():void
[static]
Blocks the background processing of methods
queued by
callLater() ,
until resumeBackgroundProcessing() is called. | UIComponent | ||
toString():String
Returns a string indicating the location of this object
within the hierarchy of DisplayObjects in the Application.
| FlexSprite | ||
validateDisplayList():void
Validates the position and size of children and draws other
visuals.
| UIComponent | ||
validateNow():void
Validate and update the properties and layout of this object
and redraw it, if necessary.
| UIComponent | ||
validateProperties():void
Used by layout logic to validate the properties of a component
by calling the
commitProperties() method. | UIComponent | ||
validateSize(recursive:Boolean = false):void
Validates the measured size of the component
If the
LayoutManager.invalidateSize() method is called with
this ILayoutManagerClient, then the validateSize() method
is called when it's time to do measurements. | UIComponent | ||
validationResultHandler(event:ValidationResultEvent):void
Handles both the
valid and invalid events from a
validator assigned to this component. | UIComponent | ||
verticalGradientMatrix(x:Number, y:Number, width:Number, height:Number):Matrix
Returns a box Matrix which can be passed to
drawRoundRect()
as the rot parameter when drawing a vertical gradient. | UIComponent |
Method | Defined by | ||
---|---|---|---|
adjustFocusRect(obj:DisplayObject = null):void
Adjust the focus rectangle.
| UIComponent | ||
attachOverlay():void
This is an internal method used by the Flex framework
to support the Dissolve effect.
| UIComponent | ||
childrenCreated():void
Performs any final processing after child objects are created.
| UIComponent | ||
commitProperties():void
Processes the properties set on the component.
| UIComponent | ||
createBorder():void
Creates the border for this component.
| ScrollControlBase | ||
createChildren():void
Creates objects that are children of this ScrollControlBase,
which in this case are the border and mask.
| ScrollControlBase | ||
createInFontContext(classObj:Class):Object
Creates a new object using a context
based on the embedded font being used.
| UIComponent | ||
createInModuleContext(moduleFactory:IFlexModuleFactory, className:String):Object
Creates the object using a given moduleFactory.
| UIComponent | ||
focusInHandler(event:FocusEvent):void
The event handler called when a UIComponent object gets focus.
| UIComponent | ||
focusOutHandler(event:FocusEvent):void
The event handler called when a UIComponent object loses focus.
| UIComponent | ||
initializationComplete():void
Finalizes the initialization of this component.
| UIComponent | ||
initializeAccessibility():void
Initializes this component's accessibility code.
| UIComponent | ||
isOurFocus(target:DisplayObject):Boolean
Typically overridden by components containing UITextField objects,
where the UITextField object gets focus.
| UIComponent | ||
keyDownHandler(event:KeyboardEvent):void
The event handler called for a
keyDown event. | UIComponent | ||
keyUpHandler(event:KeyboardEvent):void
The event handler called for a
keyUp event. | UIComponent | ||
layoutChrome(unscaledWidth:Number, unscaledHeight:Number):void
Responds to size changes by setting the positions and sizes
of this control's borders.
| ScrollControlBase | ||
measure():void
Calculates the default size, and optionally the default minimum size,
of the component.
| UIComponent | ||
mouseWheelHandler(event:MouseEvent):void
Event handler for the mouse wheel scroll event.
| ScrollControlBase | ||
resourcesChanged():void
This method is called when a UIComponent is constructed,
and again whenever the ResourceManager dispatches
a
"change" Event to indicate
that the localized resources have changed in some way. | UIComponent | ||
roomForScrollBar(bar:ScrollBar, unscaledWidth:Number, unscaledHeight:Number):Boolean
Determines if there is enough space in this component to display
a given scrollbar.
| ScrollControlBase | ||
scrollHandler(event:Event):void
Default event handler for the
scroll event. | ScrollControlBase | ||
setScrollBarProperties(totalColumns:int, visibleColumns:int, totalRows:int, visibleRows:int):void
Causes the ScrollControlBase to show or hide scrollbars based
on the parameters passed in.
| ScrollControlBase | ||
updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
Draws the object and/or sizes and positions its children.
| UIComponent |
Event | Summary | Defined by | ||
---|---|---|---|---|
Dispatched when the component is added to a container as a content child
by using the addChild() or addChildAt() method. | UIComponent | |||
Dispatched when the component has finished its construction, property processing, measuring, layout, and drawing. | UIComponent | |||
Dispatched after the view state has changed. | UIComponent | |||
Dispatched after the currentState property changes,
but before the view state changes. | UIComponent | |||
Dispatched by the drag initiator (the component that is the source of the data being dragged) when the drag operation completes, either when you drop the dragged data onto a drop target or when you end the drag-and-drop operation without performing a drop. | UIComponent | |||
Dispatched by the drop target when the user releases the mouse over it. | UIComponent | |||
Dispatched by a component when the user moves the mouse over the component during a drag operation. | UIComponent | |||
Dispatched by the component when the user drags outside the component, but does not drop the data onto the target. | UIComponent | |||
Dispatched by a component when the user moves the mouse while over the component during a drag operation. | UIComponent | |||
Dispatched by the drag initiator when starting a drag operation. | UIComponent | |||
Dispatched after an effect ends. | UIComponent | |||
Dispatched just before an effect starts. | UIComponent | |||
Dispatched after the component has returned to the root view state. | UIComponent | |||
Dispatched before the component exits from the root view state. | UIComponent | |||
Dispatched when an object's state changes from visible to invisible. | UIComponent | |||
Dispatched when the component has finished its construction and has all initialization properties set. | UIComponent | |||
Dispatched when a component is monitored by a Validator and the validation failed. | UIComponent | |||
Dispatched from a component opened using the PopUpManager when the user clicks outside it. | UIComponent | |||
Dispatched from a component opened using the PopUpManager when the user scrolls the mouse wheel outside it. | UIComponent | |||
Dispatched when the object has moved. | UIComponent | |||
Dispatched at the beginning of the component initialization sequence. | UIComponent | |||
Dispatched when the component is about to be hidden (visible = false); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is about to be moved via move(); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is about to be shown (visible = true); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is about to be sized via setActualSize(); calling event.preventDefault() will stop the action from occuring. | UIComponent | |||
Dispatched when the component is removed from a container as a content child
by using the removeChild() or removeChildAt() method. | UIComponent | |||
Dispatched when the component is resized. | UIComponent | |||
Dispatched when the content is scrolled. | ScrollControlBase | |||
Dispatched when an object's state changes from invisible to visible. | UIComponent | |||
Dispatched by the component when it is time to create a ToolTip. | UIComponent | |||
Dispatched by the component when its ToolTip has been hidden and will be discarded soon. | UIComponent | |||
Dispatched by the component when its ToolTip is about to be hidden. | UIComponent | |||
Dispatched by the component when its ToolTip is about to be shown. | UIComponent | |||
Dispatched by the component when its ToolTip has been shown. | UIComponent | |||
Dispatched by a component whose toolTip property is set,
as soon as the user moves the mouse over it. | UIComponent | |||
Dispatched when an object has had its commitProperties() ,
measure() , and
updateDisplayList() methods called (if needed). | UIComponent | |||
Dispatched when a component is monitored by a Validator and the validation succeeded. | UIComponent | |||
Dispatched when values are changed programmatically or by user interaction. | UIComponent |
Style | Description | Defined by | ||
---|---|---|---|---|
backgroundAlpha
| Type: Number CSS Inheritance: no Alpha level of the color defined by the backgroundColor
property, of the image or SWF file defined by the backgroundImage
style.
Valid values range from 0.0 to 1.0. For most controls, the default value is 1.0,
but for ToolTip controls, the default value is 0.95 and for Alert controls, the default value is 0.9.
The default value is 1.0 . | ScrollControlBase | ||
backgroundColor
| Type: uint Format: Color CSS Inheritance: no Background color of a component. You can have both a backgroundColor and a
backgroundImage set.
Some components do not have a background.
The DataGrid control ignores this style.
The default value is undefined , which means it is not set.
If both this style and the backgroundImage style
are undefined , the component has a transparent background.
For the Application container, this style specifies the background color while the application loads, and a background gradient while it is running. Flex calculates the gradient pattern between a color slightly darker than the specified color, and a color slightly lighter than the specified color. The default skins of most Flex controls are partially transparent. As a result, the background color of
a container partially "bleeds through" to controls that are in that container. You can avoid this by setting the
alpha values of the control's <mx:Container backgroundColor="0x66CC66"/> <mx:ControlName ... fillAlphas="[1,1]"/> </mx:Container> | ScrollControlBase | ||
backgroundDisabledColor
| Type: uint Format: Color CSS Inheritance: yes Background color of the component when it is disabled. The global default value is undefined .
The default value for List controls is 0xDDDDDD (light gray).
If a container is disabled, the background is dimmed, and the degree of
dimming is controlled by the disabledOverlayAlpha style.
| ScrollControlBase | ||
backgroundImage
| Type: Object Format: File CSS Inheritance: no Background image of a component. This can be an absolute or relative URL or class. You can either have both a backgroundColor and a
backgroundImage set at the same time. The background image is displayed
on top of the background color.
The default value is undefined , meaning "not set".
If this style and the backgroundColor style are undefined,
the component has a transparent background.
The default skins of most Flex controls are partially transparent. As a result, the background image of
a container partially "bleeds through" to controls that are in that container. You can avoid this by setting the
alpha values of the control's <mx:Container backgroundColor="0x66CC66"/> <mx:ControlName ... fillAlphas="[1,1]"/> </mx:Container> | ScrollControlBase | ||
backgroundSize
| Type: String CSS Inheritance: no Scales the image specified by backgroundImage
to different percentage sizes.
A value of "100%" stretches the image
to fit the entire component.
To specify a percentage value, you must include the percent sign (%).
The default for the Application container is 100% .
The default value for all other containers is auto , which maintains
the original size of the image.
| ScrollControlBase | ||
Type: String CSS Inheritance: no The vertical distance in pixels from the top edge of the content area to the control's baseline position. | UIComponent | |||
borderColor
| Type: uint Format: Color CSS Inheritance: no Color of the border. The default value depends on the component class; if not overridden for the class, the default value is 0xB7BABC .
| ScrollControlBase | ||
borderSides
| Type: String CSS Inheritance: no Bounding box sides. A space-delimited String that specifies the sides of the border to show. The String can contain "left" , "top" ,
"right" , and "bottom" in any order.
The default value is "left top right bottom" ,
which shows all four sides.
This style is only used when borderStyle is "solid" .
| ScrollControlBase | ||
borderSkin
| Type: Class CSS Inheritance: no The border skin class of the component. The mx.skins.halo.HaloBorder class is the default value for all components that do not explicitly set their own default. The Panel container has a default value of mx.skins.halo.PanelSkin. To determine the default value for a component, see the default.css file. The default value is mx.skins.halo.HaloBorder . | ScrollControlBase | ||
borderStyle
| Type: String CSS Inheritance: no Bounding box style. The possible values are "none" , "solid" ,
"inset" , and "outset" .
The default value depends on the component class;
if not overridden for the class, the default value is "inset" .
The default value for most Containers is "none" .
| ScrollControlBase | ||
borderThickness
| Type: Number Format: Length CSS Inheritance: no Bounding box thickness. Only used when borderStyle is set to "solid" .
The default value is 1 . | ScrollControlBase | ||
Type: String CSS Inheritance: no The vertical distance in pixels from the lower edge of the component to the lower edge of its content area. | UIComponent | |||
Type: Number CSS Inheritance: no The color brightness of the component. | UIComponent | |||
color
| Type: uint Format: Color CSS Inheritance: yes Color of text in the component, including the component label. The default value is 0x0B333C . | ScrollControlBase | ||
Type: Number CSS Inheritance: no The color contrast of the component. | UIComponent | |||
cornerRadius
| Type: Number Format: Length CSS Inheritance: no Radius of component corners. The default value depends on the component class; if not overriden for the class, the default value is 0. The default value for ApplicationControlBar is 5. | ScrollControlBase | ||
disabledColor
| Type: uint Format: Color CSS Inheritance: yes Color of text in the component if it is disabled. The default value is 0xAAB3B3 . | ScrollControlBase | ||
dropShadowColor
| Type: uint Format: Color CSS Inheritance: yes Color of the drop shadow. The default value is 0x000000 . | ScrollControlBase | ||
dropShadowEnabled
| Type: Boolean CSS Inheritance: no Boolean property that specifies whether the component has a visible drop shadow. This style is used with borderStyle="solid" .
The default value is false .
Note: For drop shadows to appear on containers, set
| ScrollControlBase | ||
Type: uint Format: Color CSS Inheritance: yes Color of the component highlight when validation fails. | UIComponent | |||
Type: String CSS Inheritance: no Blend mode used by the focus rectangle. | UIComponent | |||
Type: Class CSS Inheritance: no Skin used to draw the focus rectangle. | UIComponent | |||
Type: Number Format: Length CSS Inheritance: no Thickness, in pixels, of the focus rectangle outline. | UIComponent | |||
fontAntiAliasType
| Type: String CSS Inheritance: yes Sets the antiAliasType property of internal TextFields. The possible values are
"normal" (flash.text.AntiAliasType.NORMAL )
and "advanced" (flash.text.AntiAliasType.ADVANCED ).
The default value is This style has no effect for system fonts. This style applies to all the text in a TextField subcontrol; you cannot apply it to some characters and not others. The default value is"advanced" . | ScrollControlBase | ||
fontFamily
| Type: String CSS Inheritance: yes Name of the font to use. Unlike in a full CSS implementation, comma-separated lists are not supported. You can use any font family name. If you specify a generic font name, it is converted to an appropriate device font. The default value is "Verdana" . | ScrollControlBase | ||
fontGridFitType
| Type: String CSS Inheritance: yes Sets the gridFitType property of internal TextFields that represent text in Flex controls.
The possible values are "none" (flash.text.GridFitType.NONE ),
"pixel" (flash.text.GridFitType.PIXEL ),
and "subpixel" (flash.text.GridFitType.SUBPIXEL ).
This property only applies when you are using an embedded font
and the This style has no effect for system fonts. This style applies to all the text in a TextField subcontrol; you can't apply it to some characters and not others. The default value is"pixel" . | ScrollControlBase | ||
fontSharpness
| Type: Number CSS Inheritance: yes Sets the sharpness property of internal TextFields that represent text in Flex controls.
This property specifies the sharpness of the glyph edges. The possible values are Numbers
from -400 through 400.
This property only applies when you are using an embedded font
and the This style has no effect for system fonts. This style applies to all the text in a TextField subcontrol; you can't apply it to some characters and not others. The default value is0 . | ScrollControlBase | ||
fontSize
| Type: Number Format: Length CSS Inheritance: yes Height of the text, in pixels. The default value is 10 for all controls except the ColorPicker control. For the ColorPicker control, the default value is 11. | ScrollControlBase | ||
fontStyle
| Type: String CSS Inheritance: yes Determines whether the text is italic font. Recognized values are "normal" and "italic" .
The default value is "normal" . | ScrollControlBase | ||
fontThickness
| Type: Number CSS Inheritance: yes Sets the thickness property of internal TextFields that represent text in Flex controls.
This property specifies the thickness of the glyph edges.
The possible values are Numbers from -200 to 200.
This property only applies when you are using an embedded font
and the This style has no effect on system fonts. This style applies to all the text in a TextField subcontrol; you can't apply it to some characters and not others. The default value is0 . | ScrollControlBase | ||
fontWeight
| Type: String CSS Inheritance: yes Determines whether the text is boldface. Recognized values are normal and bold .
The default value for Button controls is bold .
The default value for all other controls is normal .
| ScrollControlBase | ||
Type: String CSS Inheritance: no The horizontal distance in pixels from the center of the component's content area to the center of the component. | UIComponent | |||
horizontalScrollBarStyleName
| Type: String CSS Inheritance: no Style name for horizontal scrollbar. This allows more control over the appearance of the scrollbar. The default value is undefined . | ScrollControlBase | ||
Type: Number CSS Inheritance: no The color hue of the component. | UIComponent | |||
kerning
| Type: Boolean CSS Inheritance: yes A Boolean value that indicates whether kerning is enabled ( true ) or disabled (false ).
Kerning adjusts the gap between certain character pairs
to improve readability, and should be used only when necessary,
such as with headings in large fonts.
Kerning is supported for embedded fonts only.
Certain fonts, such as Verdana, and monospaced fonts,
such as Courier New, do not support kerning.
The default value is false . | ScrollControlBase | ||
leading
| Type: Number Format: Length CSS Inheritance: yes Additional vertical space between lines of text. The default value is 2. The default value for the ComboBox control is 0. | ScrollControlBase | ||
Type: String CSS Inheritance: no The horizontal distance in pixels from the left edge of the component's content area to the left edge of the component. | UIComponent | |||
letterSpacing
| Type: Number CSS Inheritance: yes The number of additional pixels to appear between each character. A positive value increases the character spacing beyond the normal spacing, while a negative value decreases it. The default value is 0 . | ScrollControlBase | ||
Type: Number CSS Inheritance: no The opacity of the component. | UIComponent | |||
Type: String CSS Inheritance: no The horizontal distance in pixels from the right edge of the component to the right edge of its content area. | UIComponent | |||
Type: Number CSS Inheritance: no The color saturation of the component. | UIComponent | |||
shadowDirection
| Type: String CSS Inheritance: no Direction of the drop shadow. Possible values are "left" , "center" ,
and "right" .
The default value is "center" . | ScrollControlBase | ||
shadowDistance
| Type: Number Format: Length CSS Inheritance: no Distance of the drop shadow. If the property is set to a negative value, the shadow appears above the component. The default value is 2 . | ScrollControlBase | ||
textAlign
| Type: String CSS Inheritance: yes Alignment of text within a container. Possible values are "left" , "right" ,
or "center" .
The default value for most components is | ScrollControlBase | ||
textDecoration
| Type: String CSS Inheritance: yes Determines whether the text is underlined. Possible values are "none" and "underline" .
The default value is "none" . | ScrollControlBase | ||
textIndent
| Type: Number Format: Length CSS Inheritance: yes Offset of first line of text from the left side of the container, in pixels. The default value is 0 . | ScrollControlBase | ||
Type: uint Format: Color CSS Inheritance: yes Theme color of a component. | UIComponent | |||
Type: String CSS Inheritance: no The vertical distance in pixels from the top edge of the control's content area to the top edge of the component. | UIComponent | |||
Type: String CSS Inheritance: no The vertical distance in pixels from the center of the component's content area to the center of the component. | UIComponent | |||
verticalScrollBarStyleName
| Type: String CSS Inheritance: no Style name for vertical scrollbar. This allows more control over the appearance of the scrollbar. The default value is undefined . | ScrollControlBase |
border | property |
protected var border:IFlexDisplayObject
The border object.
borderMetrics | property |
borderMetrics:EdgeMetrics
[read-only]
Returns an EdgeMetrics object that has four properties:
left
, top
, right
,
and bottom
.
The value of each property is equal to the thickness of one side
of the border, expressed in pixels.
public function get borderMetrics():EdgeMetrics
horizontalScrollBar | property |
protected var horizontalScrollBar:ScrollBar
The horizontal scroll bar.
This property is null if no horizontal scroll bar
is currently displayed.
In general you do not access this property directly.
Manipulation of the horizontalScrollPolicy
and horizontalScrollPosition
properties should provide sufficient control over the scroll bar.
horizontalScrollPolicy | property |
horizontalScrollPolicy:String
[read-write]
A property that indicates whether the horizontal scroll
bar is always on, always off,
or automatically changes based on the parameters passed to the
setScrollBarProperties()
method.
Allowed values are ScrollPolicy.ON
,
ScrollPolicy.OFF
, and ScrollPolicy.AUTO
.
MXML values can be "on"
, "off"
,
and "auto"
.
Setting this property to ScrollPolicy.OFF
for ListBase
subclasses does not affect the horizontalScrollPosition
property; you can still scroll the contents programmatically.
Note that the policy can affect the measured size of the component
If the policy is ScrollPolicy.AUTO
the
scrollbar is not factored in the measured size. This is done to
keep the layout from recalculating when the scrollbar appears. If you
know that you will have enough data for scrollbars you should set
the policy to ScrollPolicy.ON
. If you
don't know, you may need to set an explicit width or height on
the component to allow for scrollbars to appear later.
The default value is ScrollPolicy.OFF
.
This property can be used as the source for data binding.
Implementation public function get horizontalScrollPolicy():String
public function set horizontalScrollPolicy(value:String):void
horizontalScrollPosition | property |
horizontalScrollPosition:Number
[read-write]The offset into the content from the left edge. This can be a pixel offset in some subclasses or some other metric like the number of columns in a DataGrid or number of items in a HorizontalList or TileList.
The default value is 0
.
This property can be used as the source for data binding.
Implementation public function get horizontalScrollPosition():Number
public function set horizontalScrollPosition(value:Number):void
liveScrolling | property |
public var liveScrolling:Boolean = true
A flag that indicates whether scrolling is live as the
scrollbar thumb is moved
or the view is not updated until the thumb is released.
The default value is true
.
maskShape | property |
protected var maskShape:Shape
The mask. This property may be undefined if no scroll bars
are currently displayed or in some subclasses which
have a different masking mechanism.
A mask defined the viewable area of a displayable object.
Thus this mask is used to hide the portions of the content
that are not currently viewable.
In general you do not access this property directly.
Manipulation of the horizontalScrollPolicy
,
verticalScrollPolicy
, horizontalScrollPosition
,
and verticalScrollPosition
properties
should provide sufficient control over the mask.
maxHorizontalScrollPosition | property |
maxHorizontalScrollPosition:Number
[read-write]
The maximum value for the horizontalScrollPosition
property.
Note that this is not the width of the content because the
maxHorizontalScrollPosition
property contains the width
of the content minus the width of the displayable area.
In most components, the value of the
maxHorizontalScrollPosition
property is computed from the
data and size of component, and must not be set by
the application code.
This property can be used as the source for data binding.
Implementation public function get maxHorizontalScrollPosition():Number
public function set maxHorizontalScrollPosition(value:Number):void
maxVerticalScrollPosition | property |
maxVerticalScrollPosition:Number
[read-write]
The maximum value for the verticalScrollPosition
property.
Note that this is not the height of the content because the
maxVerticalScrollPosition
property contains the height
of the content minus the height of the displayable area.
The value of the
maxVerticalScrollPosition
property is computed from the
data and size of component, and must not be set by
the application code.
This property can be used as the source for data binding.
Implementation public function get maxVerticalScrollPosition():Number
public function set maxVerticalScrollPosition(value:Number):void
scrollAreaChanged | property |
protected var scrollAreaChanged:Boolean
A flag that the scrolling area changed due to the appearance or disappearance of scrollbars. Used by most layout methods to re-adjust the scrolling properties again.
scrollTipFunction | property |
scrollTipFunction:Function
[read-write]
A function that computes the string to be displayed as the ScrollTip.
This function is called if the showScrollTips
property
is set to true
and the scroll thumb is being dragged.
The function should return a String that used as a ScrollTip.
The function is passed two parameters.
The first is the direction
of the scroll bar.
The second is its scrollPosition
, as the following example shows:
function scrollTipFunction(direction:String, position:Number):String { if (direction == "vertical") return myToolTips[position]; else return ""; }
This property can be used as the source for data binding.
Implementation public function get scrollTipFunction():Function
public function set scrollTipFunction(value:Function):void
showScrollTips | property |
public var showScrollTips:Boolean = false
A flag that indicates whether a tooltip should appear
near the scroll thumb when it is being dragged.
The default value is false
to disable the tooltip.
verticalScrollBar | property |
protected var verticalScrollBar:ScrollBar
The vertical scroll bar.
This property is null if no vertical scroll bar
is currently displayed.
In general you do not access this property directly.
Manipulation of the verticalScrollPolicy
and verticalScrollPosition
properties should provide sufficient control over the scroll bar.
verticalScrollPolicy | property |
verticalScrollPolicy:String
[read-write]
A property that indicates whether the vertical scroll bar is always on, always off,
or automatically changes based on the parameters passed to the
setScrollBarProperties()
method.
Allowed values are ScrollPolicy.ON
,
ScrollPolicy.OFF
, and ScrollPolicy.AUTO
.
MXML values can be "on"
, "off"
,
and "auto"
.
Setting this property to ScrollPolicy.OFF
for ListBase
subclasses does not affect the verticalScrollPosition
property; you can still scroll the contents programmatically.
Note that the policy can affect the measured size of the component
If the policy is ScrollPolicy.AUTO
the
scrollbar is not factored in the measured size. This is done to
keep the layout from recalculating when the scrollbar appears. If you
know that you will have enough data for scrollbars you should set
the policy to ScrollPolicy.ON
. If you
don't know, you may need to set an explicit width or height on
the component to allow for scrollbars to appear later.
The default value is ScrollPolicy.AUTO
.
This property can be used as the source for data binding.
Implementation public function get verticalScrollPolicy():String
public function set verticalScrollPolicy(value:String):void
verticalScrollPosition | property |
verticalScrollPosition:Number
[read-write]The offset into the content from the top edge. This can be a pixel offset in some subclasses or some other metric like number of lines in a List or number of tiles in a TileList.
The default value is 0
.
This property can be used as the source for data binding.
Implementation public function get verticalScrollPosition():Number
public function set verticalScrollPosition(value:Number):void
viewMetrics | property |
viewMetrics:EdgeMetrics
[read-only]An EdgeMetrics object taking into account the scroll bars, if visible.
Implementation public function get viewMetrics():EdgeMetrics
ScrollControlBase | () | constructor |
public function ScrollControlBase()
Constructor.
createBorder | () | method |
protected function createBorder():void
Creates the border for this component.
Normally the border is determined by the
borderStyle
and borderSkin
styles.
It must set the border property to the instance
of the border.
createChildren | () | method |
protected override function createChildren():void
Creates objects that are children of this ScrollControlBase,
which in this case are the border and mask.
Flex calls this method when the ScrollControlBase is first created.
If a subclass overrides this method, the subclass should call
the super.createChildren()
method so that the logic
in the ScrollControlBase.createChildren()
method is executed.
layoutChrome | () | method |
protected function layoutChrome(unscaledWidth:Number, unscaledHeight:Number):void
Responds to size changes by setting the positions and sizes of this control's borders.
The ScrollControlBase.layoutChrome()
method sets the
position and size of the ScrollControlBase's border.
In every subclass of ScrollControlBase, the subclass's layoutChrome()
method should call the super.layoutChrome()
method,
so that the border is positioned properly.
unscaledWidth:Number — Specifies the width of the component, in pixels,
in the component's coordinates, regardless of the value of the
scaleX property of the component.
|
|
unscaledHeight:Number — Specifies the height of the component, in pixels,
in the component's coordinates, regardless of the value of the
scaleY property of the component.
|
mouseWheelHandler | () | method |
protected function mouseWheelHandler(event:MouseEvent):void
Event handler for the mouse wheel scroll event.
Parametersevent:MouseEvent — The event object.
|
roomForScrollBar | () | method |
protected function roomForScrollBar(bar:ScrollBar, unscaledWidth:Number, unscaledHeight:Number):Boolean
Determines if there is enough space in this component to display a given scrollbar.
Parametersbar:ScrollBar — The scrollbar
|
|
unscaledWidth:Number — Specifies the width of the component, in pixels,
in the component's coordinates, regardless of the value of the
scaleX property of the component.
|
|
unscaledHeight:Number — Specifies the height of the component, in pixels,
in the component's coordinates, regardless of the value of the
scaleY property of the component.
|
Boolean — Returns true if there is enough space for a scrollbar.
|
scrollHandler | () | method |
protected function scrollHandler(event:Event):void
Default event handler for the scroll
event.
event:Event — The event object.
|
setScrollBarProperties | () | method |
protected function setScrollBarProperties(totalColumns:int, visibleColumns:int, totalRows:int, visibleRows:int):void
Causes the ScrollControlBase to show or hide scrollbars based
on the parameters passed in. If a TextArea can only show 100 pixels
across and 5 lines of text, but the actual text to display is 200 pixels wide
and 30 lines of text, then the setScrollBarProperties()
method
is called as
setScrollBarProperties(200, 100, 30, 5)
.
totalColumns:int — The number of horizontal units that need to be displayed.
|
|
visibleColumns:int — The number of horizontal units that can be displayed at one time.
|
|
totalRows:int — The number of vertical units that need to be displayed.
|
|
visibleRows:int — The number of vertical units that can be displayed at one time
|
scroll | event |
mx.events.ScrollEvent
mx.events.ScrollEvent.SCROLL
Dispatched when the content is scrolled.
The ScrollEvent.SCROLL
constant defines the value of the
type
property of the event object for a scroll event.
The properties of the event object have the following values:
Property | Value |
---|---|
bubbles | false |
cancelable | false |
currentTarget | The Object that defines the
event listener that handles the event. For example, if you use
myButton.addEventListener() to register an event listener,
myButton is the value of the currentTarget . |
delta | Contains the change in scroll position, expressed in pixels. A positive value indicates the scroll was down or to the right. A negative value indicates the scroll was up or to the left. |
direction | Contains the
scroll direction, either ScrollEventDirection.HORIZONTAL or
ScrollEventDirection.VERTICAL . |
position | Contains the new scroll position. |
target | The Object that dispatched the event;
it is not always the Object listening for the event.
Use the currentTarget property to always access the
Object listening for the event. |