info.magnolia.ui.workbench.tree.drop

Class TreeViewDropHandler

java.lang.Object

info.magnolia.ui.workbench.tree.drop.TreeViewDropHandler

All Implemented Interfaces:

com.vaadin.event.dd.DropHandler, MoveHandler, Serializable

Direct Known Subclasses:

SecurityDropHandler

public class TreeViewDropHandler
extends Object
implements MoveHandler, com.vaadin.event.dd.DropHandler

Vaadin DropHandler for moving JCR nodes and properties in trees, with Drag and Drop.

Additionally, the dropping conditions can be restricted, by implementing a DropConstraint and configuring it in the WorkbenchDefinition.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TreeViewDropHandler()
TreeViewDropHandler(com.vaadin.ui.TreeTable tree, DropConstraint constraint)

Method Summary

Methods

Modifier and Type	Method and Description
com.vaadin.event.dd.DropHandler	asDropHandler()
boolean	basicMoveCheck(javax.jcr.Item source, javax.jcr.Item target) Performs check for moving items.
void	drop(com.vaadin.event.dd.DragAndDropEvent dropEvent)
com.vaadin.event.dd.acceptcriteria.AcceptCriterion	getAcceptCriterion() Accept dragged Elements.
boolean	moveItem(com.vaadin.data.Item source, com.vaadin.data.Item target, MoveLocation location) Performs move of the source node or property into target node or next to target node depending on the value of MoveLocation.
void	moveNode(javax.jcr.Node nodeToMove, javax.jcr.Node newParent, MoveLocation location) Performs move of the source node into target node or next to target node depending on the value of MoveLocation.

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeViewDropHandler

public TreeViewDropHandler()

TreeViewDropHandler

public TreeViewDropHandler(com.vaadin.ui.TreeTable tree,
                   DropConstraint constraint)

Method Detail

drop

public void drop(com.vaadin.event.dd.DragAndDropEvent dropEvent)

Specified by:

drop in interface com.vaadin.event.dd.DropHandler

getAcceptCriterion

public com.vaadin.event.dd.acceptcriteria.AcceptCriterion getAcceptCriterion()

Accept dragged Elements.

Specified by:

getAcceptCriterion in interface com.vaadin.event.dd.DropHandler

basicMoveCheck

public boolean basicMoveCheck(javax.jcr.Item source,
                     javax.jcr.Item target)

Performs check for moving items. Evaluates true when first node is of type Node and source and target are not same.

moveNode

public void moveNode(javax.jcr.Node nodeToMove,
            javax.jcr.Node newParent,
            MoveLocation location)
              throws javax.jcr.RepositoryException

Performs move of the source node into target node or next to target node depending on the value of MoveLocation. Move is performed in session-write mode and as such requires explicit call to session.save() after performing the operation.

Throws:

javax.jcr.RepositoryException

moveItem

public boolean moveItem(com.vaadin.data.Item source,
               com.vaadin.data.Item target,
               MoveLocation location)

Performs move of the source node or property into target node or next to target node depending on the value of MoveLocation. This method will persist move by calling session.save() explicitly. And will return true/false depending on whether move was successful or not.

Specified by:

moveItem in interface MoveHandler

asDropHandler

public com.vaadin.event.dd.DropHandler asDropHandler()

Specified by:

asDropHandler in interface MoveHandler