A pop-up container that points at (or calls out) a specific region of the application (typically a specific control that triggered it).

In the following example, a callout displaying a Label is shown when a Button is triggered:

function button_triggeredHandler(event:Event):Void {
	var button = cast(event.currentTarget, Button);

	var label = new Label();
	label.text = "Hello World!";

	Callout.show(label, button);
}
button.addEventListener(FeathersEvent.TRIGGERED, button_triggeredHandler);
Available since

1.0.0

.

See:

Constructor

new ()

Creates a new Callout object.

In general, a Callout shouldn't be instantiated directly with the constructor. Instead, use the static function Callout.show() to create a Callout, as this often requires less pop-up management code.

Available since

1.0.0

.

See:

Variables

@:value(TOP)@:stylearrowPosition:RelativePosition = TOP

The edge of the callout where the arrow is positioned.

When calling Callout.show(), the arrowPosition property will be managed automatically and should not be modified.

Available since

1.0.0

.

@:value(null)@:stylebackgroundSkin:DisplayObject = null

The primary background to display behind the callout's content.

In the following example, the callout's background is set to a bitmap:

callout.backgroundSkin = new Bitmap(bitmapData);
Available since

1.0.0

.

content:DisplayObject

The display object that will be displayed by the callout.

This object may be resized to fit the callout's bounds. If the content needs to be scrolled when placed into a smaller region than its ideal size, it should be added to a ScrollContainer, and the ScrollContainer should be passed in as the content.

In the following example, the callout's content is a bitmap:

callout.content = new Bitmap(bitmapData);
Available since

1.0.0

.

See:

@:value(CENTER)@:stylehorizontalAlign:HorizontalAlign = CENTER

The horizontal alignment of the callout, relative to the origin, if the callout is positioned on the top or bottom side of the origin.

The following example aligns the callout to the right:

callout.horizontalAlign = RIGHT;

Note: The HorizontalAlign.JUSTIFY constant is not supported by this component.

Available since

1.0.0

.

See:

@:value(0.0)@:stylemarginBottom:Float = 0.0

The minimum space, in pixels, between the callout and the stage's bottom edge.

In the following example, the callout's bottom margin is set to 20 pixels:

callout.marginBottom = 20.0;
Available since

1.0.0

.

@:value(0.0)@:stylemarginLeft:Float = 0.0

The minimum space, in pixels, between the callout and the stage's left edge.

In the following example, the callout's left margin is set to 20 pixels:

callout.marginLeft = 20.0;
Available since

1.0.0

.

@:value(0.0)@:stylemarginRight:Float = 0.0

The minimum space, in pixels, between the callout and the stage's right edge.

In the following example, the callout's right margin is set to 20 pixels:

callout.marginRight = 20.0;
Available since

1.0.0

.

@:value(0.0)@:stylemarginTop:Float = 0.0

The minimum space, in pixels, between the callout and the stage's top edge.

In the following example, the callout's top margin is set to 20 pixels:

callout.marginTop = 20.0;
Available since

1.0.0

.

origin:DisplayObject

A callout may be positioned relative to another display object, known as the origin. Even if the position of the origin changes, the callout will be re-positioned automatically to always point at the origin.

Available since

1.0.0

.

See:

@:value(0.0)@:stylepaddingBottom:Float = 0.0

The minimum space, in pixels, between the callout's bottom edge and the callout's content.

In the following example, the callout's bottom padding is set to 20 pixels:

callout.paddingBottom = 20.0;
Available since

1.0.0

.

@:value(0.0)@:stylepaddingLeft:Float = 0.0

The minimum space, in pixels, between the callout's left edge and the callout's content.

In the following example, the callout's left padding is set to 20 pixels:

callout.paddingLeft = 20.0;
Available since

1.0.0

.

@:value(0.0)@:stylepaddingRight:Float = 0.0

The minimum space, in pixels, between the callout's right edge and the button's content.

In the following example, the callout's right padding is set to 20 pixels:

callout.paddingRight = 20.0;
Available since

1.0.0

.

@:value(0.0)@:stylepaddingTop:Float = 0.0

The minimum space, in pixels, between the callout's top edge and the callout's content.

In the following example, the callout's top padding is set to 20 pixels:

callout.paddingTop = 20.0;
Available since

1.0.0

.

supportedPositions:Array<RelativePosition>

The set of positions that the callout may appear at, relative to its origin. Positioning of the callout is attempted in order, and if the callout does not fit between the origin and the edge of the stage, the next position is attempted. If the callout is too large for all positions, the position with the most space will be used.

Available since

1.0.0

.

See:

@:value(MIDDLE)@:styleverticalAlign:VerticalAlign = MIDDLE

The vertical alignment of the callout, relative to the origin, if the callout is positioned on the left or right side of the origin.

The following example aligns the callout to the top:

callout.verticalAlign = TOP;

Note: The VerticalAlign.JUSTIFY constant is not supported by this component.

Available since

1.0.0

.

See:

Methods

close ():Void

Closes the callout, if opened.

Available since

1.0.0

.

Static methods

@:value({ modal : true })staticshow (content:DisplayObject, origin:DisplayObject, ?supportedPositions:RelativePositions, modal:Bool = true, ?customOverlayFactory:Void ‑> DisplayObject):Callout

Creates a callout, and then positions and sizes it automatically based based on an origin component and an optional set of positions.

In the following example, a callout displaying a Label is shown when a Button is triggered:

function button_triggeredHandler(event:Event):Void {
	var button = cast(event.currentTarget, Button);

	var label = new Label();
	label.text = "Hello World!";

	Callout.show(label, button);
}
button.addEventListener(FeathersEvent.TRIGGERED, button_triggeredHandler);
Available since

1.0.0

.

Inherited Variables

Defined by FeathersControl

@:value(false)read onlycreated:Bool = false

Determines if the component has been initialized and validated for the first time.

In the following example, we check if the component is created or not, and we listen for an event if it isn't:

if(!control.created)
{
	control.addEventListener(FeathersEventType.CREATION_COMPLETE, creationCompleteHandler);
}

See:

@:value(true)@:isVarenabled:Bool = true

@:value(false)read onlyinitialized:Bool = false

Determines if the component has been initialized yet. The initialize() function is called one time only, when the Feathers UI control is added to the display list for the first time.

In the following example, we check if the component is initialized or not, and we listen for an event if it isn't initialized:

if(!control.initialized)
{
	control.addEventListener(FeathersEvent.INITIALIZE, initializeHandler);
}
Available since

1.0.0

.

See:

read onlystyleContext:Class<IStyleObject>

The class used as the context for styling the component. If a subclass of a component should have different styles than its superclass, it should override the get_styleContext getter. However, if a subclass should continue using the same styles as its superclass, it happens automatically.

Available since

1.0.0

.

styleProvider:IStyleProvider

When a component initializes, a style provider may be used to set properties that affect the component's visual appearance.

You can set or replace an existing style provider at any time before a component initializes without immediately affecting the component's visual appearance. After the component initializes, the style provider may still be changed, and any properties that were set by the previous style provider will be reset to their default values before applying the new style provider.

Available since

1.0.0

.

See:

@:value(null)variant:String = null

May be used to provide multiple different variations of the same UI component, each with a different appearance.

Available since

1.0.0

.

Defined by MeasureSprite

@:value(null)@:isVarexplicitHeight:Null<Float> = null

@:value(null)@:isVarexplicitMaxHeight:Null<Float> = null

@:value(null)@:isVarexplicitMaxWidth:Null<Float> = null

@:value(null)@:isVarexplicitMinHeight:Null<Float> = null

@:value(null)@:isVarexplicitMinWidth:Null<Float> = null

@:value(null)@:isVarexplicitWidth:Null<Float> = null

Defined by ValidatingSprite

@:value(-1)read onlydepth:Int = -1

Inherited Methods

Defined by FeathersControl

private@:dox(show)initialize ():Void

Called the first time that the UI control is added to the stage, and you should override this function to customize the initialization process. Do things like create children and set up event listeners. After this function is called, Event.INIT is dispatched.

The following example overrides initialization:

override private function initialize():Void {
	super.initialize();

}
Available since

1.0.0

.

move (x:Float, y:Float):Void

Sets both the x and y positions of the control in a single function call.

Available since

1.0.0

.

See:

DisplayObject.x

DisplayObject.y

setSize (width:Float, height:Float):Void

Sets both the width and height dimensions of the control in a single function call.

Available since

1.0.0

.

See:

DisplayObject.width

DisplayObject.height

private@:dox(show)setStyle (styleName:String, ?state:EnumValue):Bool

Determines if a style may be changed, and restricts the style from being changed in the future, if necessary.

Available since

1.0.0

.

Defined by MeasureSprite

private@:value({ minHeight : 0.0, minWidth : 0.0 })@:dox(show)saveMeasurements (width:Float, height:Float, minWidth:Float = 0.0, minHeight:Float = 0.0, ?maxWidth:Float, ?maxHeight:Float):Bool

Saves the calculated dimensions for the component, replacing any values that haven't been set explicitly. Returns true if the reported values have changed and Event.RESIZE was dispatched.

Available since

1.0.0

.

Defined by ValidatingSprite

@:value({ flag : null })isInvalid (?flag:String):Bool

Indicates whether the control is pending validation or not. By default, returns true if any invalidation flag has been set. If you pass in a specific flag, returns true only if that flag has been set (others may be set too, but it checks the specific flag only. If all flags have been marked as invalid, always returns true.

The following example invalidates a component:

component.setInvalid();
trace(component.isInvalid()); // true
Available since

1.0.0

.

@:value({ flag : null })setInvalid (?flag:String):Void

Call this function to tell the UI control that a redraw is pending. The redraw will happen immediately before OpenFL renders the UI control to the screen. The validation system exists to ensure that multiple properties can be set together without redrawing multiple times in between each property change.

If you cannot wait until later for the validation to happen, you can call validate() to redraw immediately. As an example, you might want to validate immediately if you need to access the correct width or height values of the UI control, since these values are calculated during validation.

The following example invalidates a component:

component.setInvalid();
trace(component.isInvalid()); // true
Available since

1.0.0

.

private@:dox(show)setInvalidationFlag (flag:String):Void

Sets an invalidation flag. This will not add the component to the validation queue. It only sets the flag. A subclass might use this function during draw() to manipulate the flags that its superclass sees.

Available since

1.0.0

.

See:

private@:dox(show)update ():Void

Override to customize layout and to adjust properties of children. Called when the component validates, if any flags have been marked to indicate that validation is pending.

The following example overrides updating after invalidation:

override private function update():Void {
	super.update();

}
Available since

1.0.0

.