echopoint.ui
Class DropDownBoxUI

java.lang.Object
  nextapp.echoservlet.AbstractComponentPeer
      nextapp.echoservlet.ui.PanelUI
          echopoint.ui.ScrollableBoxUI
              echopoint.ui.DropDownBoxUI

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.io.Serializable, java.util.EventListener, ChangeListener, Alignment, ClientInputProducer, ComponentPeer

public class DropDownBoxUI
extends ScrollableBoxUI
implements ClientInputProducer, ChangeListener

AbstractDateFieldUI is a abstract base backend peer class for the components DateField and TimeField. It does most of the rendering calls out the implementation to provide key information.

See Also:

Serialized Form

Field Summary

static Service	DROPDOWN_SERVICE_SCRIPT
protected boolean	renderedActive
static Service	SERVICE_DROP_DOWN_IMAGE

Fields inherited from interface nextapp.echoservlet.ComponentPeer

IGNORE_PROPERTY_CHANGE

Constructor Summary

DropDownBoxUI()

Method Summary

void	clientInput(java.lang.String input) Called when a client sends an input string through an input field.
protected java.lang.String	createScriptAction(java.lang.String function) Returns a script action with the given commandStr
ComponentPeer	getPeer(Component c) This version of getPeer returns a ComponentPeer for the given Component c or null if one cannot be found.
void	propertyChange(java.beans.PropertyChangeEvent e)
static void	register() Registers the Component with its peer bindings
void	registered() Called when the component is registered.
void	render(RenderingContext rc, Element parent) A method that should be overridden for the ComponentPeer to produce HTML output.
void	stateChanged(ChangeEvent e) Invoked when a state change occurs.
void	unregistered() Called when the component is unregistered.

Methods inherited from class echopoint.ui.ScrollableBoxUI

getHorizontalAlignment, getVerticalAlignment

Methods inherited from class nextapp.echoservlet.AbstractComponentPeer

addAncillaryService, generateId, getCalculatedBackground, getCalculatedFont, getCalculatedForeground, getChildCount, getChildren, getComponent, getFocusedElementId, getId, getInstancePeer, getParentComponentPeer, redraw, registerAncillaryServices, removeAncillaryService, setComponent, setId, setInstancePeer, unregisterAncillaryServices

Methods inherited from class java.lang.Object

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

Methods inherited from interface nextapp.echoservlet.ClientInputProducer

getId

Field Detail

DROPDOWN_SERVICE_SCRIPT

public static final Service DROPDOWN_SERVICE_SCRIPT

SERVICE_DROP_DOWN_IMAGE

public static final Service SERVICE_DROP_DOWN_IMAGE

renderedActive

protected boolean renderedActive

See Also:

ButtonUI

Constructor Detail

DropDownBoxUI

public DropDownBoxUI()

Method Detail

register

public static void register()

Registers the Component with its peer bindings

clientInput

public void clientInput(java.lang.String input)

Description copied from class: ScrollableBoxUI

Called when a client sends an input string through an input field.

Specified by:

clientInput in interface ClientInputProducer

Overrides:

clientInput in class ScrollableBoxUI

Parameters:

input - The data in the hidden input field in the controller form as last known.

See Also:

ClientInputProducer.clientInput(java.lang.String)

createScriptAction

protected java.lang.String createScriptAction(java.lang.String function)

Returns a script action with the given commandStr

getPeer

public ComponentPeer getPeer(Component c)

This version of getPeer returns a ComponentPeer for the given Component c or null if one cannot be found. This class overrrides the default behaviour and catches any EchoServletExceptions runtime errors that might be thrown.

Specified by:

getPeer in interface ComponentPeer

Overrides:

getPeer in class AbstractComponentPeer

Parameters:

c - The component whose peer is to be returned.

Returns:

The peer of the specified component.

propertyChange

public void propertyChange(java.beans.PropertyChangeEvent e)

Specified by:

propertyChange in interface java.beans.PropertyChangeListener

Overrides:

propertyChange in class ScrollableBoxUI

See Also:

PropertyChangeListener.propertyChange(java.beans.PropertyChangeEvent)

registered

public void registered()

Description copied from class: AbstractComponentPeer

Called when the component is registered. This method should be overridden if necessary.

Specified by:

registered in interface ComponentPeer

Overrides:

registered in class ScrollableBoxUI

See Also:

EchoPointComponentPeer.registered()

render

public void render(RenderingContext rc,
                   Element parent)

Description copied from interface: ComponentPeer

A method that should be overridden for the ComponentPeer to produce HTML output.

Specified by:

render in interface ComponentPeer

Overrides:

render in class ScrollableBoxUI

Parameters:

rc - A rendering context provided by the Connection.

parent - The element that will contain content rendered by this ComponentPeer.

See Also:

ComponentPeer.render(nextapp.echoservlet.RenderingContext, nextapp.echoservlet.html.Element)

unregistered

public void unregistered()

Description copied from class: AbstractComponentPeer

Called when the component is unregistered. This method should be overridden if necessary.

Specified by:

unregistered in interface ComponentPeer

Overrides:

unregistered in class PanelUI

See Also:

ComponentPeer.unregistered()

stateChanged

public void stateChanged(ChangeEvent e)

Description copied from interface: ChangeListener

Invoked when a state change occurs.

Specified by:

stateChanged in interface ChangeListener

Parameters:

e - The event describing the state change.

See Also:

ChangeListener.stateChanged(nextapp.echo.event.ChangeEvent)