org.gwt.advanced.client.ui.widget.cell

Class ComboBoxCell

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.SimplePanel

org.gwt.advanced.client.ui.widget.cell.AbstractCell

org.gwt.advanced.client.ui.widget.cell.ComboBoxCell

All Implemented Interfaces:

com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.AcceptsOneWidget, com.google.gwt.user.client.ui.HasOneWidget, 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.IsWidget, Iterable<com.google.gwt.user.client.ui.Widget>, GridCell

public class ComboBoxCell
extends AbstractCell

This is a cell implementation that must contain a combo box.

Since:

1.2.0

Author:

Sergey Skladchikov

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

Field Summary

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

DEBUG_ID_PREFIX

Constructor Summary

Constructors

Constructor and Description
ComboBoxCell()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canBeDeactivated() This method checks whether a cell can be deactivated by a grid or another component on any input / output event produced outside the cell.
protected com.google.gwt.user.client.ui.Widget	createActive() This method creates an active cell element (content).
protected com.google.gwt.user.client.ui.Widget	createInactive() This method creates an inactive cell element (content).
protected com.google.gwt.user.client.ui.Widget	getComboBoxWidget(ComboBox comboBox) This method returns a widget for the inactive combo box.
Object	getNewValue() This method returns a new value entered while the cell is active.
void	setFocus(boolean focus) This method sets focus to the cell.
void	setValue(Object value) This method sets a cell value.
boolean	valueEqual(Object value) This method compares values in this cell and in the specified cell.

Methods inherited from class org.gwt.advanced.client.ui.widget.cell.AbstractCell

addListeners, displayActive, getColumn, getDefaultBlurHandler, getGrid, getLabel, getRow, getValue, isActive, isDefaultFocusListenerAdded, prepare, removeListeners, setActive, setGrid, setLabel, setPosition

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

add, getContainerElement, getWidget, iterator, remove, setWidget, setWidget

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

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

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

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

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, unsinkEvents

Methods inherited from class java.lang.Object

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

Constructor Detail

ComboBoxCell

public ComboBoxCell()

Method Detail

valueEqual

public boolean valueEqual(Object value)

This method compares values in this cell and in the specified cell.

NOTE: it can return a result not correlating with the result of the equals method invocation.

Specified by:

valueEqual in interface GridCell

Overrides:

valueEqual in class AbstractCell

Parameters:

value - is a value to be compared.

Returns:

true if values are equal.

setValue

public void setValue(Object value)

This method sets a cell value.

Specified by:

setValue in interface GridCell

Overrides:

setValue in class AbstractCell

Parameters:

value - is a cell value.

canBeDeactivated

public boolean canBeDeactivated()

This method checks whether a cell can be deactivated by a grid or another component on any input / output event produced outside the cell.

Most of cells always allow deactivation in this case, others only in particular situations.

Specified by:

canBeDeactivated in interface GridCell

Overrides:

canBeDeactivated in class AbstractCell

Returns:

a result of check.

createActive

protected com.google.gwt.user.client.ui.Widget createActive()

This method creates an active cell element (content).

Specified by:

createActive in class AbstractCell

Returns:

a content element.

createInactive

protected com.google.gwt.user.client.ui.Widget createInactive()

This method creates an inactive cell element (content).

Specified by:

createInactive in class AbstractCell

Returns:

a content element.

setFocus

public void setFocus(boolean focus)

This method sets focus to the cell.

Parameters:

focus - is a flag meaning whether the focus must be set or lost.

getNewValue

public Object getNewValue()

This method returns a new value entered while the cell is active.

If the cell is passive, it is an equivalent of the GridCell.getValue() method.

Returns:

is a new value.

getComboBoxWidget

protected com.google.gwt.user.client.ui.Widget getComboBoxWidget(ComboBox comboBox)

This method returns a widget for the inactive combo box.

Parameters:

comboBox - is a combo box.

Returns:

a widget to be extracted from the combo box.