Package org.opencms.gwt.client.ui.tree

Class CmsTree<I extends CmsTreeItem>

java.lang.Object

com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.Widget

com.google.gwt.user.client.ui.Panel

com.google.gwt.user.client.ui.ComplexPanel

org.opencms.gwt.client.ui.CmsList<I>

org.opencms.gwt.client.ui.tree.CmsTree<I>

Type Parameters:

I - the specific tree item implementation

All Implemented Interfaces:

com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.logical.shared.HasCloseHandlers<I>, com.google.gwt.event.logical.shared.HasOpenHandlers<I>, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.HasAnimation, com.google.gwt.user.client.ui.HasVisibility, com.google.gwt.user.client.ui.HasWidgets, com.google.gwt.user.client.ui.HasWidgets.ForIsWidget, com.google.gwt.user.client.ui.IndexedPanel, com.google.gwt.user.client.ui.IndexedPanel.ForIsWidget, com.google.gwt.user.client.ui.IsWidget, Iterable<com.google.gwt.user.client.ui.Widget>, I_CmsDropTarget, I_CmsTruncable

Direct Known Subclasses:

CmsLazyTree

public class CmsTree<I extends CmsTreeItem>
extends CmsList<I>
implements com.google.gwt.event.logical.shared.HasOpenHandlers<I>, com.google.gwt.event.logical.shared.HasCloseHandlers<I>, com.google.gwt.user.client.ui.HasAnimation

A tree of list items.

Since:

8.0.0

Nested Class Summary

Nested classes/interfaces inherited from class com.google.gwt.user.client.ui.UIObject

com.google.gwt.user.client.ui.UIObject.DebugIdImpl, com.google.gwt.user.client.ui.UIObject.DebugIdImplEnabled

Nested classes/interfaces inherited from interface com.google.gwt.user.client.ui.HasWidgets

com.google.gwt.user.client.ui.HasWidgets.ForIsWidget

Nested classes/interfaces inherited from interface com.google.gwt.user.client.ui.IndexedPanel

com.google.gwt.user.client.ui.IndexedPanel.ForIsWidget

Field Summary

Fields

Modifier and Type	Field	Description
protected com.google.gwt.event.shared.SimpleEventBus	m_eventBus	The event bus for the tree.

Fields inherited from class org.opencms.gwt.client.ui.CmsList

m_dndHandler, m_placeholder, m_placeholderIndex

Fields inherited from class com.google.gwt.user.client.ui.UIObject

DEBUG_ID_PREFIX

Constructor Summary

Constructors

Constructor	Description
CmsTree()	Constructor.

Method Summary

Modifier and Type	Method	Description
com.google.gwt.event.shared.HandlerRegistration	addCloseHandler(com.google.gwt.event.logical.shared.CloseHandler<I> handler)
com.google.gwt.event.shared.HandlerRegistration	addOpenHandler(com.google.gwt.event.logical.shared.OpenHandler<I> handler)
void	cancelOpenTimer()	Cancels the open timer if present.
void	closeAllEmpty()	Closes all empty entries.
void	fireClose(I item)	Fires the close event for an item.
void	fireEvent(com.google.gwt.event.shared.GwtEvent<?> event)
void	fireOpen(I item)	Fires an open event for a tree item.
String	getPlaceholderPath()	Returns the placeholder path.
boolean	isAnimationEnabled()
boolean	isRootDropEnabled()	Returns if dropping on root level is enabled or not.
protected void	registerItem(I item)	Registers the given item on this list.
protected void	removeOpenTimer()	Sets the timer reference to null.
void	removePlaceholder()	Removes the placeholder.
void	repositionPlaceholder(int x, int y, CmsDNDHandler.Orientation orientation)	Repositions the placeholder.
void	setAnimationEnabled(boolean enable)
void	setDropEnabled(boolean enabled)	Here the meaning is enabling dropping on the root level.
void	setOpenTimer(CmsTreeItem item)	Sets a timer to set a tree item open.
protected void	setPlaceholder(com.google.gwt.dom.client.Element placeholder)	Sets the current drag'n drop place holder.
protected void	setPlaceholderPath(String path)	Sets the placeholder path.
void	setRootDropEnabled(boolean rootDropEnabled)	Sets the drop on root enabled.

Methods inherited from class org.opencms.gwt.client.ui.CmsList

add, addItem, changeId, checkPosition, clearList, getDnDHandler, getItem, getItem, getItemPosition, getPlaceholderIndex, insert, insertItem, insertPlaceholder, isDNDTakeAll, isDropEnabled, onDrop, remove, removeItem, removeItem, setDNDHandler, setDNDTakeAll, truncate

Methods inherited from class com.google.gwt.user.client.ui.ComplexPanel

add, add, adjustIndex, checkIndexBoundsForAccess, checkIndexBoundsForInsertion, getChildren, getWidget, getWidgetCount, getWidgetIndex, getWidgetIndex, insert, insert, iterator, remove

Methods inherited from class com.google.gwt.user.client.ui.Panel

add, adopt, clear, doAttachChildren, doDetachChildren, orphan, remove

Methods inherited from class com.google.gwt.user.client.ui.Widget

addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, getHandlerCount, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onBrowserEvent, onDetach, onLoad, onUnload, removeFromParent, setLayoutData, sinkEvents, unsinkEvents

Methods inherited from class com.google.gwt.user.client.ui.UIObject

addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opencms.gwt.client.dnd.I_CmsDropTarget

getElement

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

m_eventBus

protected com.google.gwt.event.shared.SimpleEventBus m_eventBus

The event bus for the tree.

Constructor Details

CmsTree

public CmsTree()

Constructor.

Method Details

addCloseHandler

public com.google.gwt.event.shared.HandlerRegistration addCloseHandler(com.google.gwt.event.logical.shared.CloseHandler<I> handler)

Specified by:

addCloseHandler in interface com.google.gwt.event.logical.shared.HasCloseHandlers<I extends CmsTreeItem>

See Also:

• HasCloseHandlers.addCloseHandler(com.google.gwt.event.logical.shared.CloseHandler)

addOpenHandler

public com.google.gwt.event.shared.HandlerRegistration addOpenHandler(com.google.gwt.event.logical.shared.OpenHandler<I> handler)

Specified by:

addOpenHandler in interface com.google.gwt.event.logical.shared.HasOpenHandlers<I extends CmsTreeItem>

See Also:

• HasOpenHandlers.addOpenHandler(com.google.gwt.event.logical.shared.OpenHandler)

cancelOpenTimer

public void cancelOpenTimer()

Cancels the open timer if present.

closeAllEmpty

public void closeAllEmpty()

Closes all empty entries.

fireClose

public void fireClose(I item)

Fires the close event for an item.

Parameters:

item - the item for which to fire the close event

fireEvent

public void fireEvent(com.google.gwt.event.shared.GwtEvent<?> event)

Specified by:

fireEvent in interface com.google.gwt.event.shared.HasHandlers

Overrides:

fireEvent in class com.google.gwt.user.client.ui.Widget

See Also:

• Widget.fireEvent(com.google.gwt.event.shared.GwtEvent)

fireOpen

public void fireOpen(I item)

Fires an open event for a tree item.

Parameters:

item - the tree item for which the open event should be fired

getPlaceholderPath

public String getPlaceholderPath()

Returns the placeholder path.

Returns:

the path

isAnimationEnabled

public boolean isAnimationEnabled()

Specified by:

isAnimationEnabled in interface com.google.gwt.user.client.ui.HasAnimation

See Also:

• HasAnimation.isAnimationEnabled()

isRootDropEnabled

public boolean isRootDropEnabled()

Returns if dropping on root level is enabled or not.

Returns:

true if dropping on root level is enabled

removePlaceholder

public void removePlaceholder()

Description copied from interface: I_CmsDropTarget

Removes the placeholder.

Specified by:

removePlaceholder in interface I_CmsDropTarget

Overrides:

removePlaceholder in class CmsList<I extends CmsTreeItem>

See Also:

• CmsList.removePlaceholder()

repositionPlaceholder

public void repositionPlaceholder(int x,
 int y,
 CmsDNDHandler.Orientation orientation)

Description copied from interface: I_CmsDropTarget

Repositions the placeholder.

Specified by:

repositionPlaceholder in interface I_CmsDropTarget

Overrides:

repositionPlaceholder in class CmsList<I extends CmsTreeItem>

Parameters:

x - the cursor client x position

y - the cursor client y position

orientation - the drag and drop orientation

See Also:

• CmsList.repositionPlaceholder(int, int, Orientation)

setAnimationEnabled

public void setAnimationEnabled(boolean enable)

Specified by:

setAnimationEnabled in interface com.google.gwt.user.client.ui.HasAnimation

See Also:

• HasAnimation.setAnimationEnabled(boolean)

setDropEnabled

public void setDropEnabled(boolean enabled)

Here the meaning is enabling dropping on the root level.

Use CmsTreeItem.setDropEnabled(boolean) for dropping on tree items.

Overrides:

setDropEnabled in class CmsList<I extends CmsTreeItem>

Parameters:

enabled - true to enable, or false to disable

See Also:

• CmsList.setDropEnabled(boolean)

setOpenTimer

public void setOpenTimer(CmsTreeItem item)

Sets a timer to set a tree item open.

Parameters:

item - the item to open

setRootDropEnabled

public void setRootDropEnabled(boolean rootDropEnabled)

Sets the drop on root enabled.

Parameters:

rootDropEnabled - true to enable dropping on root level

registerItem

protected void registerItem(I item)

Description copied from class: CmsList

Registers the given item on this list.

Overrides:

registerItem in class CmsList<I extends CmsTreeItem>

Parameters:

item - the item to register

See Also:

• CmsList.registerItem(org.opencms.gwt.client.ui.I_CmsListItem)

removeOpenTimer

protected void removeOpenTimer()

Sets the timer reference to null.

setPlaceholder

protected void setPlaceholder(com.google.gwt.dom.client.Element placeholder)

Description copied from class: CmsList

Sets the current drag'n drop place holder.

Overrides:

setPlaceholder in class CmsList<I extends CmsTreeItem>

Parameters:

placeholder - the element to set as place holder

See Also:

• CmsList.setPlaceholder(com.google.gwt.dom.client.Element)

setPlaceholderPath

protected void setPlaceholderPath(String path)

Sets the placeholder path.

Parameters:

path - the path