com.esri.adf.web.faces.component
Class TocControl

java.lang.Object
  javax.faces.component.UIComponent
      javax.faces.component.UIComponentBase
          javax.faces.component.UICommand
              com.esri.adf.web.faces.component.TocControl

All Implemented Interfaces:

EventListener, javax.faces.component.ActionSource, javax.faces.component.ActionSource2, javax.faces.component.StateHolder, javax.faces.event.ActionListener, javax.faces.event.FacesListener

public class TocControl
extends javax.faces.component.UICommand
implements javax.faces.event.ActionListener

The TOC control—or table of contents control—displays the contents of a map and allows an end user to turn layers on and off. The TOC control functions in the same manner as the table of contents in ArcMap: it presents a hierarchical list of data frames, layers, and symbols displayed on the map.

The TocControl works with WebToc object. The TocRenderer class renders the control to the appropriate markup, and the TocTag class exposes the control as a JSP custom tag named toc.

The TOC is made up of a collection of TocNode objects. A TocNode stores content, maintains hierarchical relationships, and responds to an event that occurs at that node. To store content, a TocNode requires a TocNodeContent object to encapsulate the content at that node. A TocNode handles its own expand or collapse event and delegates the check box event—for layer visibility—and the node operation—when node content is clicked—to the TocNodeContent’s event handling methods:

public void handleCheckedEvent(TocEvent args)
public void handleNodeEvent(TocEvent args)

The TocRenderer controls how the TocControl is displayed on the page and manages the events for the table of contents. The TocRenderer decodes the following request parameters from the FacesContext:
• tocId + _nodeKey — The key of the node responsible for the operation
• tocId + _nodeOperation — The operation to be performed, which is either click or expandCollapse

Field Summary

static String	COMPONENT_FAMILY The standard component family for this component.
static String	COMPONENT_TYPE The standard component type for this component.
static String	DEFAULT_XSL_FILE_NAME The name of the XSL file used to render this control by default.

Fields inherited from class javax.faces.component.UIComponent

bindings

Constructor Summary

TocControl()
Initializes the TocControl.

Method Summary

String	getCollapsedImage() Returns the collapsed image URL.
String	getExpandedImage() Returns the expanded image URL.
String	getFamily() Returns the family of this control.
int	getIndentWidth() Returns the indentation level of the TOC nodes.
String	getMapId() Returns the map control id associated with the control.
protected javax.faces.render.Renderer	getRenderer(javax.faces.context.FacesContext context) Returns a design-time renderer if the component is used in an IDE.
String	getResourceImage() Returns the resource image URL.
String	getStyle() Returns the style attributes of toolbar control.
String	getStyleClass() Returns the file name where the CSS style attributes are defined.
String	getTextStyle() Returns the TOC text CSS style.
String	getTextStyleClass() Returns the TOC text CSS class name.
TocModel	getTocModel() Returns the TocModel object associated with this control.
URL	getXslUrl() Returns the URL of the XSL file used to render the control.
boolean	isAutoPostBack() Returns an indicator of whether to post back a TOC event.
boolean	isClientPostBack() Indicates whether the control supports client side post back.
boolean	isInit() Returns an indicator whether this control is initialized.
boolean	isShowExpanded() Returns an indicator of whether to show collapsed/expanded images on the TOC.
void	processAction(javax.faces.event.ActionEvent event) Processes an action fired by this control.
TocEvent	queueTocEvent(javax.faces.context.FacesContext facesContext, String nodeKey, int nodeOperation, String contextMenuItemValue, Map<String,Boolean> checkedNodeKeys) Set the event arguments passed by the client and queues the action event.
void	restoreState(javax.faces.context.FacesContext facesContext, Object state) Restores the state of the control.
Object	saveState(javax.faces.context.FacesContext facesContext) Saves the state of this control.
void	setAutoPostBack(boolean autoPostBack) Sets whether to automatically post back on every check or uncheck event.
void	setClientPostBack(boolean clientPostBack) Sets whether the control supports client side post back.
void	setCollapsedImage(String collapsedImage) Sets the collapsed image URL.
void	setExpandedImage(String expandedImage) Sets the expanded image URL.
void	setIndentWidth(int indent) Sets the indentation level of the TOC nodes.
void	setInit(boolean init) Sets an indicator whether to initialize the control.
void	setMapId(String mapId) Sets the map control id associated with the control.
void	setResourceImage(String resourceImage) Sets the resource image URL.
void	setShowExpanded(boolean showExpanded) Sets the visibility of the collapsed/expanded images on the TOC.
void	setStyle(String style) Sets the default style for the toolbar control.
void	setStyleClass(String styleClass) Sets the CSS class name where the CSS style attributes are defined.
void	setTextStyle(String textStyle) Sets the TOC text CSS style.
void	setTextStyleClass(String textStyleClass) Sets the TOC text CSS class name.
void	setValueExpression(String name, javax.el.ValueExpression binding) Sets the value binding.
void	setXslUrl(URL xslUrl) Sets the URL of the XSL file used to render the control.

Methods inherited from class javax.faces.component.UICommand

addActionListener, broadcast, getAction, getActionExpression, getActionListener, getActionListeners, getValue, isImmediate, queueEvent, removeActionListener, setAction, setActionExpression, setActionListener, setImmediate, setValue

Methods inherited from class javax.faces.component.UIComponentBase

addFacesListener, decode, encodeBegin, encodeChildren, encodeEnd, findComponent, getAttributes, getChildCount, getChildren, getClientId, getFacesContext, getFacesListeners, getFacet, getFacetCount, getFacets, getFacetsAndChildren, getId, getParent, getRendererType, getRendersChildren, getValueBinding, invokeOnComponent, isRendered, isTransient, processDecodes, processRestoreState, processSaveState, processUpdates, processValidators, removeFacesListener, restoreAttachedState, saveAttachedState, setId, setParent, setRendered, setRendererType, setTransient, setValueBinding

Methods inherited from class javax.faces.component.UIComponent

encodeAll, getContainerClientId, getValueExpression

Methods inherited from class java.lang.Object

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

Field Detail

COMPONENT_FAMILY

public static final String COMPONENT_FAMILY

The standard component family for this component.

See Also:

Constant Field Values

COMPONENT_TYPE

public static final String COMPONENT_TYPE

The standard component type for this component.

See Also:

Constant Field Values

DEFAULT_XSL_FILE_NAME

public static final String DEFAULT_XSL_FILE_NAME

The name of the XSL file used to render this control by default.

See Also:

Constant Field Values

Constructor Detail

TocControl

public TocControl()

Initializes the TocControl. The renderer type is set and the control is registered as an ActionListener.

Method Detail

getFamily

public String getFamily()

Returns the family of this control.

Overrides:

getFamily in class javax.faces.component.UICommand

Returns:

String- the COMPONENT_FAMILY

getRenderer

protected javax.faces.render.Renderer getRenderer(javax.faces.context.FacesContext context)

Returns a design-time renderer if the component is used in an IDE.

Overrides:

getRenderer in class javax.faces.component.UIComponentBase

Parameters:

context - the FacesContext

Returns:

Renderer- the renderer object

processAction

public void processAction(javax.faces.event.ActionEvent event)
                   throws javax.faces.event.AbortProcessingException

Processes an action fired by this control. The TOC control delegates event handling to the TocNode's event handling methods. It then iterates through all the checked nodes and calls the associated handleCheckedEvent method.

Specified by:

processAction in interface javax.faces.event.ActionListener

Parameters:

event - the ActionEvent

Throws:

javax.faces.event.AbortProcessingException - if the TOC node event fails

queueTocEvent

public TocEvent queueTocEvent(javax.faces.context.FacesContext facesContext,
                              String nodeKey,
                              int nodeOperation,
                              String contextMenuItemValue,
                              Map<String,Boolean> checkedNodeKeys)

Set the event arguments passed by the client and queues the action event. A new TocEvent is created by passing in the checked node and the boolean value indicating if the node is checked.

Parameters:

facesContext - the FacesContext

nodeKey - the node key

nodeOperation - - the operation to perform on the node (0 indicates expand/collapse, 1 indicates check/uncheck, and an integer other than -1, 0, or 1 indicates a custom operation)

contextMenuItemValue - - the value of the context menu item to be processed

checkedNodeKeys - - collection of TocEvent.CheckedTocNodes

getTocModel

public TocModel getTocModel()

Returns the TocModel object associated with this control.

Returns:

TocModel- the TocModel

isInit

public boolean isInit()

Returns an indicator whether this control is initialized.

Returns:

boolean- if true, the control is initialized

setInit

public void setInit(boolean init)

Sets an indicator whether to initialize the control.

Parameters:

init - if true, initialize the control

setValueExpression

public void setValueExpression(String name,
                               javax.el.ValueExpression binding)

Sets the value binding. For the "value" attribute it checks if it is an instanceof TocModel or not. If not, it throws an ADFException. For all other cases, it simply calls super.setValueBinding()

Overrides:

setValueExpression in class javax.faces.component.UIComponent

Parameters:

name - the name of the attribute or property for which to set a ValueBinding

binding - the ValueBinding to set. If null, remove any currently set ValueBinding.

getMapId

public String getMapId()

Returns the map control id associated with the control.

Returns:

String - the map control id

setMapId

public void setMapId(String mapId)

Sets the map control id associated with the control.

Parameters:

mapId - the map control id.

getXslUrl

public URL getXslUrl()

Returns the URL of the XSL file used to render the control.

Returns:

URL- the URL object

setXslUrl

public void setXslUrl(URL xslUrl)

Sets the URL of the XSL file used to render the control.

Parameters:

xslUrl - the URL of the XSL file

getStyle

public String getStyle()

Returns the style attributes of toolbar control.

Returns:

String- the style attributes

setStyle

public void setStyle(String style)

Sets the default style for the toolbar control.

Parameters:

style - the default style for the toolbar control

getStyleClass

public String getStyleClass()

Returns the file name where the CSS style attributes are defined.

Returns:

String- the CSS class

setStyleClass

public void setStyleClass(String styleClass)

Sets the CSS class name where the CSS style attributes are defined.

Parameters:

styleClass - the CSS class

isClientPostBack

public boolean isClientPostBack()

Indicates whether the control supports client side post back.

Returns:

boolean- if true, the client side post back is supported

setClientPostBack

public void setClientPostBack(boolean clientPostBack)

Sets whether the control supports client side post back.

Parameters:

clientPostBack - if true, the client side post back is supported

isAutoPostBack

public boolean isAutoPostBack()

Returns an indicator of whether to post back a TOC event.

Returns:

boolean- if true, every TOC event is sent to the server

setAutoPostBack

public void setAutoPostBack(boolean autoPostBack)

Sets whether to automatically post back on every check or uncheck event.

Parameters:

autoPostBack - if true, a TOC request is sent to the server after each event

getTextStyle

public String getTextStyle()

Returns the TOC text CSS style.

Returns:

String- the TOC text CSS style

setTextStyle

public void setTextStyle(String textStyle)

Sets the TOC text CSS style.

Parameters:

textStyle - the TOC text CSS style

getTextStyleClass

public String getTextStyleClass()

Returns the TOC text CSS class name.

Returns:

String- the TOC text CSS class name

setTextStyleClass

public void setTextStyleClass(String textStyleClass)

Sets the TOC text CSS class name.

Parameters:

textStyleClass - the TOC text CSS class name

getIndentWidth

public int getIndentWidth()

Returns the indentation level of the TOC nodes.

Returns:

int- the indentation level

setIndentWidth

public void setIndentWidth(int indent)

Sets the indentation level of the TOC nodes.

Parameters:

indent - the number of pixels to indent nodes

getExpandedImage

public String getExpandedImage()

Returns the expanded image URL.

Returns:

String- a URL string to the image

setExpandedImage

public void setExpandedImage(String expandedImage)

Sets the expanded image URL.

Parameters:

expandedImage - a URL string to the image

getCollapsedImage

public String getCollapsedImage()

Returns the collapsed image URL.

Returns:

String - a URL string to the image

setCollapsedImage

public void setCollapsedImage(String collapsedImage)

Sets the collapsed image URL.

Parameters:

collapsedImage - a URL string to the image

getResourceImage

public String getResourceImage()

Returns the resource image URL.

Returns:

String- the resource image URL

setResourceImage

public void setResourceImage(String resourceImage)

Sets the resource image URL.

Parameters:

resourceImage - a URL string to the image

setShowExpanded

public void setShowExpanded(boolean showExpanded)

Sets the visibility of the collapsed/expanded images on the TOC.

Parameters:

showExpanded - set to true to show the collapsed/expanded images

isShowExpanded

public boolean isShowExpanded()

Returns an indicator of whether to show collapsed/expanded images on the TOC.

Returns:

boolean- if set to true, collapsed/expanded images will show

saveState

public Object saveState(javax.faces.context.FacesContext facesContext)

Saves the state of this control.

Specified by:

saveState in interface javax.faces.component.StateHolder

Overrides:

saveState in class javax.faces.component.UICommand

Parameters:

facesContext - the associated FacesContext

Returns:

Object- the object to be saved

restoreState

public void restoreState(javax.faces.context.FacesContext facesContext,
                         Object state)

Restores the state of the control.

Specified by:

restoreState in interface javax.faces.component.StateHolder

Overrides:

restoreState in class javax.faces.component.UICommand

Parameters:

facesContext - the associated FacesContext

state - the object to restore the state of the control from