com.vaadin.client.ui

Class VTwinColSelect

java.lang.Object

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

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

com.google.gwt.user.client.ui.Composite

com.vaadin.client.ui.VTwinColSelect

All Implemented Interfaces:

com.google.gwt.event.dom.client.ClickHandler, com.google.gwt.event.dom.client.DoubleClickHandler, com.google.gwt.event.dom.client.KeyDownHandler, com.google.gwt.event.dom.client.MouseDownHandler, com.google.gwt.event.logical.shared.HasAttachHandlers, com.google.gwt.event.shared.EventHandler, com.google.gwt.event.shared.HasHandlers, com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.HasEnabled, com.google.gwt.user.client.ui.HasVisibility, com.google.gwt.user.client.ui.IsRenderable, com.google.gwt.user.client.ui.IsWidget, AbstractMultiSelectConnector.MultiSelectWidget, Focusable, Field, SubPartAware

public class VTwinColSelect
extends com.google.gwt.user.client.ui.Composite
implements AbstractMultiSelectConnector.MultiSelectWidget, Field, com.google.gwt.event.dom.client.ClickHandler, Focusable, com.google.gwt.user.client.ui.HasEnabled, com.google.gwt.event.dom.client.KeyDownHandler, com.google.gwt.event.dom.client.MouseDownHandler, com.google.gwt.event.dom.client.DoubleClickHandler, SubPartAware

A list builder widget that has two selects; one for selectable options, another for selected options, and buttons for selecting and deselecting the items.

Author:

Vaadin Ltd

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	VTwinColSelect.DoubleClickListBox A multiselect ListBox which catches double clicks.

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

Field Summary

Fields

Modifier and Type	Field and Description
static String	CLASSNAME Primary style name for twin col select.

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

DEBUG_ID_PREFIX

Constructor Summary

Constructors

Constructor and Description
VTwinColSelect() Constructs a new VTwinColSelect.

Method Summary

Modifier and Type	Method and Description
Registration	addSelectionChangeListener(BiConsumer<Set<String>,Set<String>> listener) Adds a selection change listener the select.
void	clearInternalHeights() For internal use only.
void	clearInternalWidths() For internal use only.
void	focus() Sets focus to this widget.
com.google.gwt.user.client.ui.Widget	getCaptionWrapper() For internal use only.
protected int	getNavigationSelectKey() Get the key that selects an item in the table.
protected com.google.gwt.user.client.ui.HTML	getOptionsCaption() Gets the options caption HTML Widget.
int	getRows() Returns the number of visible items for the list boxes.
protected com.google.gwt.user.client.ui.HTML	getSelectionsCaption() Gets the selections caption HTML widget.
com.google.gwt.user.client.Element	getSubPartElement(String subPart) Locates an element inside a component using the identifier provided in subPart.
String	getSubPartName(com.google.gwt.user.client.Element subElement) Provides an identifier that identifies the element within the component.
boolean	isEnabled()
boolean	isReadOnly() Returns true if this twin column select is in read only mode, false if not.
void	onClick(com.google.gwt.event.dom.client.ClickEvent event)
void	onDoubleClick(com.google.gwt.event.dom.client.DoubleClickEvent event)
void	onKeyDown(com.google.gwt.event.dom.client.KeyDownEvent event)
void	onMouseDown(com.google.gwt.event.dom.client.MouseDownEvent event)
void	setEnabled(boolean enabled)
void	setInternalHeights() For internal use only.
void	setInternalWidths() For internal use only.
void	setItems(List<elemental.json.JsonObject> items) Sets the given items to the select.
void	setReadOnly(boolean readOnly) Sets this twin column select as read only, meaning selection cannot be changed.
void	setRows(int rows) Sets the number of visible items for the list boxes.
void	setTabIndex(int tabIndex) Sets the tab index.
void	updateCaptions(String leftCaption, String rightCaption) Updates the captions above the left (options) and right (selections) columns.

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

claimElement, getWidget, initializeClaimedElement, initWidget, isAttached, onAttach, onBrowserEvent, onDetach, render, render, resolvePotentialElement, setWidget

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

addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, fireEvent, getHandlerCount, getLayoutData, getParent, isOrWasAttached, 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, 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 com.vaadin.client.connectors.AbstractMultiSelectConnector.MultiSelectWidget

getCaption, getIconUrl, getKey, isEnabled, isSelected

Field Detail

CLASSNAME

public static final String CLASSNAME

Primary style name for twin col select.

See Also:

Constant Field Values

Constructor Detail

VTwinColSelect

public VTwinColSelect()

Constructs a new VTwinColSelect.

Method Detail

getOptionsCaption

protected com.google.gwt.user.client.ui.HTML getOptionsCaption()

Gets the options caption HTML Widget.

Returns:

the options caption widget

getSelectionsCaption

protected com.google.gwt.user.client.ui.HTML getSelectionsCaption()

Gets the selections caption HTML widget.

Returns:

the selections caption widget

getCaptionWrapper

public com.google.gwt.user.client.ui.Widget getCaptionWrapper()

For internal use only. May be removed or replaced in the future.

Returns:

the caption wrapper widget

setRows

public void setRows(int rows)

Sets the number of visible items for the list boxes.

Parameters:

rows - the number of items to show

See Also:

ListBox.setVisibleItemCount(int)

getRows

public int getRows()

Returns the number of visible items for the list boxes.

Returns:

the number of items to show

See Also:

ListBox.setVisibleItemCount(int)

updateCaptions

public void updateCaptions(String leftCaption,
                           String rightCaption)

Updates the captions above the left (options) and right (selections) columns. {code null} value clear the caption.

Parameters:

leftCaption - the left caption to set, or null to clear

rightCaption - the right caption to set, or null to clear

addSelectionChangeListener

public Registration addSelectionChangeListener(BiConsumer<Set<String>,Set<String>> listener)

Description copied from interface: AbstractMultiSelectConnector.MultiSelectWidget

Adds a selection change listener the select.

Specified by:

addSelectionChangeListener in interface AbstractMultiSelectConnector.MultiSelectWidget

Parameters:

listener - the listener to add, not null

Returns:

a registration handle to remove the listener

setItems

public void setItems(List<elemental.json.JsonObject> items)

Description copied from interface: AbstractMultiSelectConnector.MultiSelectWidget

Sets the given items to the select.

Specified by:

setItems in interface AbstractMultiSelectConnector.MultiSelectWidget

Parameters:

items - the items for the select

onClick

public void onClick(com.google.gwt.event.dom.client.ClickEvent event)

Specified by:

onClick in interface com.google.gwt.event.dom.client.ClickHandler

clearInternalHeights

public void clearInternalHeights()

For internal use only. May be removed or replaced in the future.

setInternalHeights

public void setInternalHeights()

For internal use only. May be removed or replaced in the future.

clearInternalWidths

public void clearInternalWidths()

For internal use only. May be removed or replaced in the future.

setInternalWidths

public void setInternalWidths()

For internal use only. May be removed or replaced in the future.

setTabIndex

public void setTabIndex(int tabIndex)

Sets the tab index.

Parameters:

tabIndex - the tab index to set

setReadOnly

public void setReadOnly(boolean readOnly)

Sets this twin column select as read only, meaning selection cannot be changed.

Parameters:

readOnly - true for read only, false for not read only

isReadOnly

public boolean isReadOnly()

Returns true if this twin column select is in read only mode, false if not.

Returns:

true for read only, false for not read only

setEnabled

public void setEnabled(boolean enabled)

Specified by:

setEnabled in interface com.google.gwt.user.client.ui.HasEnabled

isEnabled

public boolean isEnabled()

Specified by:

isEnabled in interface com.google.gwt.user.client.ui.HasEnabled

focus

public void focus()

Description copied from interface: Focusable

Sets focus to this widget.

Specified by:

focus in interface Focusable

getNavigationSelectKey

protected int getNavigationSelectKey()

Get the key that selects an item in the table. By default it is the Enter key but by overriding this you can change the key to whatever you want.

Returns:

the key that selects an item

onKeyDown

public void onKeyDown(com.google.gwt.event.dom.client.KeyDownEvent event)

Specified by:

onKeyDown in interface com.google.gwt.event.dom.client.KeyDownHandler

onMouseDown

public void onMouseDown(com.google.gwt.event.dom.client.MouseDownEvent event)

Specified by:

onMouseDown in interface com.google.gwt.event.dom.client.MouseDownHandler

onDoubleClick

public void onDoubleClick(com.google.gwt.event.dom.client.DoubleClickEvent event)

Specified by:

onDoubleClick in interface com.google.gwt.event.dom.client.DoubleClickHandler

getSubPartElement

public com.google.gwt.user.client.Element getSubPartElement(String subPart)

Description copied from interface: SubPartAware

Locates an element inside a component using the identifier provided in subPart. The subPart identifier is component specific and may be any string of characters, numbers, space characters and brackets.

Specified by:

getSubPartElement in interface SubPartAware

Parameters:

subPart - The identifier for the element inside the component

Returns:

The element identified by subPart or null if the element could not be found.

getSubPartName

public String getSubPartName(com.google.gwt.user.client.Element subElement)

Description copied from interface: SubPartAware

Provides an identifier that identifies the element within the component. The subElement is a part of the component and must never be null.

Note! getSubPartElement(getSubPartName(element)) == element is not always true. A component can choose to provide a more generic identifier for any given element if the results of all interactions with subElement are the same as interactions with the element identified by the return value. For example a button can return an identifier for the root element even though a DIV inside the button was passed as subElement because interactions with the DIV and the root button element produce the same result.

Specified by:

getSubPartName in interface SubPartAware

Parameters:

subElement - The element the identifier string should uniquely identify

Returns:

An identifier that uniquely identifies subElement or null if no identifier could be provided.