com.sun.javafx.scene.traversal

Class TraversalEngine.BaseEngineContext

java.lang.Object

com.sun.javafx.scene.traversal.TraversalEngine.BaseEngineContext

All Implemented Interfaces:

TraversalContext

Direct Known Subclasses:

TraversalEngine.EngineContext, TraversalEngine.TempEngineContext

Enclosing class:

TraversalEngine

private abstract class TraversalEngine.BaseEngineContext
extends java.lang.Object
implements TraversalContext

The base class for all engine contexts

Constructor Summary

Constructors

Modifier	Constructor and Description
private	BaseEngineContext()

Method Summary

Modifier and Type	Method and Description
private void	addFocusableChildrenToList(java.util.List<Node> list, Parent parent)
java.util.List<Node>	getAllTargetNodes() Returns all traversable nodes in the context's (engine's) root
Bounds	getSceneLayoutBounds(Node n) Returns layout bounds of the Node in the relevant (Sub)Scene.
Node	selectFirstInParent(Parent parent) If the TraversalEngine does not want to handle traversal inside some inner child (Parent), it can use this method to apply default algorithm inside that Parent and return the first Node
Node	selectInSubtree(Parent subTreeRoot, Node from, Direction dir) If the TraversalEngine does not want to handle traversal inside some inner child (Parent), it can use this method to apply default algorithm inside that Parent and return the next Node within the Parent or null if there's no successor.
Node	selectLastInParent(Parent parent) If the TraversalEngine does not want to handle traversal inside some inner child (Parent), it can use this method to apply default algorithm inside that Parent and return the last Node

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.sun.javafx.scene.traversal.TraversalContext

getRoot

Constructor Detail

BaseEngineContext

private BaseEngineContext()

Method Detail

getAllTargetNodes

public java.util.List<Node> getAllTargetNodes()

Returns all traversable nodes in the context's (engine's) root

Specified by:

getAllTargetNodes in interface TraversalContext

getSceneLayoutBounds

public Bounds getSceneLayoutBounds(Node n)

Description copied from interface: TraversalContext

Returns layout bounds of the Node in the relevant (Sub)Scene. Note that these bounds are the most important for traversal as they define the final position within the scene.

Specified by:

getSceneLayoutBounds in interface TraversalContext

addFocusableChildrenToList

private void addFocusableChildrenToList(java.util.List<Node> list,
                                        Parent parent)

selectFirstInParent

public Node selectFirstInParent(Parent parent)

Description copied from interface: TraversalContext

If the TraversalEngine does not want to handle traversal inside some inner child (Parent), it can use this method to apply default algorithm inside that Parent and return the first Node

Specified by:

selectFirstInParent in interface TraversalContext

selectLastInParent

public Node selectLastInParent(Parent parent)

Description copied from interface: TraversalContext

If the TraversalEngine does not want to handle traversal inside some inner child (Parent), it can use this method to apply default algorithm inside that Parent and return the last Node

Specified by:

selectLastInParent in interface TraversalContext

selectInSubtree

public Node selectInSubtree(Parent subTreeRoot,
                            Node from,
                            Direction dir)

Description copied from interface: TraversalContext

If the TraversalEngine does not want to handle traversal inside some inner child (Parent), it can use this method to apply default algorithm inside that Parent and return the next Node within the Parent or null if there's no successor.

Specified by:

selectInSubtree in interface TraversalContext

Parameters:

subTreeRoot - this will be used as a root of the traversal. Should be a Node that is still handled by the current TraversalEngine, but it's content is not.