public class DefaultTreeState extends Object implements ITreeState, org.apache.wicket.util.io.IClusterable, org.apache.wicket.model.IDetachable
This implementation tries to be as lightweight as possible. By default all nodes are collapsed.
| Constructor and Description |
|---|
DefaultTreeState() |
| Modifier and Type | Method and Description |
|---|---|
void |
addTreeStateListener(ITreeStateListener l)
Adds a tree state listener.
|
void |
collapseAll()
Collapses all nodes of the tree.
|
void |
collapseNode(Object node)
Collapses the given node.
|
void |
detach() |
void |
expandAll()
Expands all nodes of the tree.
|
void |
expandNode(Object node)
Expands the given node.
|
Collection<Object> |
getSelectedNodes()
Returns the collection of all selected nodes.
|
boolean |
isAllowSelectMultiple()
Returns whether multiple nodes can be selected.
|
boolean |
isNodeExpanded(Object node)
Returns true if the given node is expanded.
|
boolean |
isNodeSelected(Object node)
Returns true if the given node is selected, false otherwise.
|
protected void |
removeSelectedNodeSilent(Object node) |
void |
removeTreeStateListener(ITreeStateListener l)
Removes a tree state listener.
|
void |
selectNode(Object node,
boolean selected)
Selects or deselects
node and calls the corresponding method on all registered
ITreeStateListeners. |
void |
setAllowSelectMultiple(boolean value)
Sets whether multiple nodes can be selected.
|
public void addTreeStateListener(ITreeStateListener l)
ITreeStateaddTreeStateListener in interface ITreeStatel - Listener to addITreeState.addTreeStateListener(org.apache.wicket.extensions.markup.html.tree.ITreeStateListener)public void collapseAll()
ITreeStatecollapseAll in interface ITreeStateITreeState.collapseAll()public void collapseNode(Object node)
ITreeStatecollapseNode in interface ITreeStatenode - Node to collapsepublic void expandAll()
ITreeStateexpandAll in interface ITreeStateITreeState.expandAll()public void expandNode(Object node)
ITreeStateexpandNode in interface ITreeStatenode - Node to expandpublic Collection<Object> getSelectedNodes()
ITreeStategetSelectedNodes in interface ITreeStateITreeState.getSelectedNodes()protected void removeSelectedNodeSilent(Object node)
public boolean isAllowSelectMultiple()
ITreeStateisAllowSelectMultiple in interface ITreeStateITreeState.isAllowSelectMultiple()public boolean isNodeExpanded(Object node)
ITreeStateisNodeExpanded in interface ITreeStatenode - The node to inspectpublic boolean isNodeSelected(Object node)
ITreeStateisNodeSelected in interface ITreeStatenode - The node to inspectpublic void removeTreeStateListener(ITreeStateListener l)
ITreeStateremoveTreeStateListener in interface ITreeStatel - The listener to removeITreeState.removeTreeStateListener(org.apache.wicket.extensions.markup.html.tree.ITreeStateListener)public void selectNode(Object node, boolean selected)
node and calls the corresponding method on all registered
ITreeStateListeners. If isAllowSelectMultiple is false
, any currently selected nodes are deselected.selectNode in interface ITreeStatenode - the node to be selectedselected - true if node is to be selected, false if node is to be deselectedpublic void setAllowSelectMultiple(boolean value)
ITreeStatesetAllowSelectMultiple in interface ITreeStatevalue - If true, multiple nodes can be selected. If false, only one node at a time can be
selectedITreeState.setAllowSelectMultiple(boolean)public void detach()
detach in interface org.apache.wicket.model.IDetachableCopyright © 2016. All Rights Reserved.