com.google.gwt.user.client.ui

Class ToggleButton

java.lang.Object

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

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

com.google.gwt.user.client.ui.FocusWidget

com.google.gwt.user.client.ui.ButtonBase

com.google.gwt.user.client.ui.CustomButton

com.google.gwt.user.client.ui.ToggleButton

All Implemented Interfaces:

IsEditor<LeafValueEditor<java.lang.Boolean>>, HasAllDragAndDropHandlers, HasAllFocusHandlers, HasAllGestureHandlers, HasAllKeyHandlers, HasAllMouseHandlers, HasAllTouchHandlers, HasBlurHandlers, HasClickHandlers, HasDoubleClickHandlers, HasDragEndHandlers, HasDragEnterHandlers, HasDragHandlers, HasDragLeaveHandlers, HasDragOverHandlers, HasDragStartHandlers, HasDropHandlers, HasFocusHandlers, HasGestureChangeHandlers, HasGestureEndHandlers, HasGestureStartHandlers, HasKeyDownHandlers, HasKeyPressHandlers, HasKeyUpHandlers, HasMouseDownHandlers, HasMouseMoveHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseUpHandlers, HasMouseWheelHandlers, HasTouchCancelHandlers, HasTouchEndHandlers, HasTouchMoveHandlers, HasTouchStartHandlers, HasAttachHandlers, HasValueChangeHandlers<java.lang.Boolean>, HasHandlers, HasSafeHtml, EventListener, TakesValue<java.lang.Boolean>, Focusable, HasEnabled, HasFocus, HasHTML, HasText, HasValue<java.lang.Boolean>, HasVisibility, IsWidget, SourcesClickEvents, SourcesFocusEvents, SourcesKeyboardEvents, SourcesMouseEvents

public class ToggleButton
extends CustomButton
implements HasValue<java.lang.Boolean>, IsEditor<LeafValueEditor<java.lang.Boolean>>

A ToggleButton is a stylish stateful button which allows the user to toggle between up and down states.

CSS Style Rules

• .gwt-ToggleButton-up/down/up-hovering/down-hovering/up-disabled/down-disabled {.html-face}

Example

public class ToggleButtonExample implements EntryPoint {
  public void onModuleLoad() {
    // Make a new button that does something when you click it.
    final ToggleButton toggleButton = new ToggleButton("Up", "Down");
    toggleButton.addClickHandler(new ClickHandler() {
      public void onClick(ClickEvent event) {
        if (toggleButton.isDown()) {
          Window.alert("I have been toggled down");
        } else {
          Window.alert("I have been toggled up");
        }
      }
    });

    // In a real application, you would have to have css styles defined for
    // gwt-ToggleButton-up,gwt-ToggleButton-up-hovering,gwt-ToggleButton-up-disabled,
    // gwt-ToggleButton-down,.gwt-ToggleButton-down-hovering,.gwt-ToggleButton-down-disabled

    // Add the ToggleButton to the root panel.
    RootPanel.get().add(toggleButton);
  }
}

Nested Class Summary

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

CustomButton.Face

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

UIObject.DebugIdImpl, UIObject.DebugIdImplEnabled

Field Summary

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

eventsToSink

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

DEBUG_ID_PREFIX, MISSING_ELEMENT_ERROR, SETELEMENT_TWICE_ERROR

Constructor Summary

Constructors

Constructor and Description
ToggleButton() Constructor for ToggleButton.
ToggleButton(Image upImage) Constructor for ToggleButton.
ToggleButton(Image upImage, ClickHandler handler) Constructor for ToggleButton.
ToggleButton(Image upImage, ClickListener listener) Deprecated. Use ToggleButton(Image, ClickHandler) instead
ToggleButton(Image upImage, Image downImage) Constructor for ToggleButton.
ToggleButton(Image upImage, Image downImage, ClickHandler handler) Constructor for ToggleButton.
ToggleButton(Image upImage, Image downImage, ClickListener listener) Deprecated. Use ToggleButton(Image, Image, ClickHandler) instead
ToggleButton(java.lang.String upText) Constructor for ToggleButton.
ToggleButton(java.lang.String upText, ClickHandler handler) Constructor for ToggleButton.
ToggleButton(java.lang.String upText, ClickListener listener) Deprecated. Use ToggleButton(String, ClickHandler) instead
ToggleButton(java.lang.String upText, java.lang.String downText) Constructor for ToggleButton.
ToggleButton(java.lang.String upText, java.lang.String downText, ClickHandler handler) Constructor for ToggleButton.

Method Summary

Modifier and Type	Method and Description
HandlerRegistration	addValueChangeHandler(ValueChangeHandler<java.lang.Boolean> handler) Adds a ValueChangeEvent handler.
LeafValueEditor<java.lang.Boolean>	asEditor() Returns the Editor encapsulated by the view object.
java.lang.Boolean	getValue() Determines whether this button is currently down.
boolean	isDown() Is this button down?
protected void	onClick() Called when the user finishes clicking on this button.
void	setDown(boolean down) Sets whether this button is down.
void	setValue(java.lang.Boolean value) Sets whether this button is down.
void	setValue(java.lang.Boolean value, boolean fireEvents) Sets whether this button is down, firing ValueChangeEvent if appropriate.

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

finishSetup, fireClickListeners, getCurrentFace, getDownDisabledFace, getDownFace, getDownHoveringFace, getHTML, getTabIndex, getText, getUpDisabledFace, getUpFace, getUpHoveringFace, isHovering, onAttach, onBrowserEvent, onClickCancel, onClickStart, onDetach, setAccessKey, setCurrentFace, setEnabled, setFocus, setHovering, setHTML, setHTML, setTabIndex, setText, toggleDown

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

addBlurHandler, addClickHandler, addClickListener, addDoubleClickHandler, addDragEndHandler, addDragEnterHandler, addDragHandler, addDragLeaveHandler, addDragOverHandler, addDragStartHandler, addDropHandler, addFocusHandler, addFocusListener, addGestureChangeHandler, addGestureEndHandler, addGestureStartHandler, addKeyboardListener, addKeyDownHandler, addKeyPressHandler, addKeyUpHandler, addMouseDownHandler, addMouseListener, addMouseMoveHandler, addMouseOutHandler, addMouseOverHandler, addMouseUpHandler, addMouseWheelHandler, addMouseWheelListener, addTouchCancelHandler, addTouchEndHandler, addTouchMoveHandler, addTouchStartHandler, getFocusImpl, isEnabled, removeClickListener, removeFocusListener, removeKeyboardListener, removeMouseListener, removeMouseWheelListener

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

addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, doAttachChildren, doDetachChildren, ensureHandlers, fireEvent, getHandlerCount, getHandlerManager, getLayoutData, getParent, isAttached, isOrWasAttached, onLoad, onUnload, removeFromParent, replaceElement, setLayoutData, setParent, 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 com.google.gwt.event.shared.HasHandlers

fireEvent

Constructor Detail

ToggleButton

public ToggleButton()

Constructor for ToggleButton.

ToggleButton

public ToggleButton(Image upImage)

Constructor for ToggleButton. The supplied image is used to construct the default face.

Parameters:

upImage - image for the default face of the button

ToggleButton

public ToggleButton(Image upImage,
                    ClickHandler handler)

Constructor for ToggleButton. The supplied image is used to construct the default face of the button.

Parameters:

upImage - image for the default (up) face of the button

handler - the click handler

ToggleButton

@Deprecated
public ToggleButton(Image upImage,
                                ClickListener listener)

Deprecated. Use ToggleButton(Image, ClickHandler) instead

Constructor for ToggleButton. The supplied image is used to construct the default face of the button.

Parameters:

upImage - image for the default (up) face of the button

listener - the click listener

ToggleButton

public ToggleButton(Image upImage,
                    Image downImage)

Constructor for ToggleButton.

Parameters:

upImage - image for the default(up) face of the button

downImage - image for the down face of the button

ToggleButton

public ToggleButton(Image upImage,
                    Image downImage,
                    ClickHandler handler)

Constructor for ToggleButton.

Parameters:

upImage - image for the default(up) face of the button

downImage - image for the down face of the button

handler - the click handler

ToggleButton

@Deprecated
public ToggleButton(Image upImage,
                                Image downImage,
                                ClickListener listener)

Deprecated. Use ToggleButton(Image, Image, ClickHandler) instead

Constructor for ToggleButton.

Parameters:

upImage - image for the default(up) face of the button

downImage - image for the down face of the button

listener - clickListener

ToggleButton

public ToggleButton(java.lang.String upText)

Constructor for ToggleButton. The supplied text is used to construct the default face of the button.

Parameters:

upText - the text for the default (up) face of the button.

ToggleButton

public ToggleButton(java.lang.String upText,
                    ClickHandler handler)

Constructor for ToggleButton. The supplied text is used to construct the default face of the button.

Parameters:

upText - the text for the default (up) face of the button

handler - the click handler

ToggleButton

@Deprecated
public ToggleButton(java.lang.String upText,
                                ClickListener listener)

Deprecated. Use ToggleButton(String, ClickHandler) instead

Constructor for ToggleButton. The supplied text is used to construct the default face of the button.

Parameters:

upText - the text for the default (up) face of the button

listener - the click listener

ToggleButton

public ToggleButton(java.lang.String upText,
                    java.lang.String downText)

Constructor for ToggleButton.

Parameters:

upText - the text for the default (up) face of the button

downText - the text for down face of the button

ToggleButton

public ToggleButton(java.lang.String upText,
                    java.lang.String downText,
                    ClickHandler handler)

Constructor for ToggleButton.

Parameters:

upText - the text for the default (up) face of the button

downText - the text for down face of the button

handler - the click handler

Method Detail

addValueChangeHandler

public HandlerRegistration addValueChangeHandler(ValueChangeHandler<java.lang.Boolean> handler)

Description copied from interface: HasValueChangeHandlers

Adds a ValueChangeEvent handler.

Specified by:

addValueChangeHandler in interface HasValueChangeHandlers<java.lang.Boolean>

Parameters:

handler - the handler

Returns:

the registration for the event

asEditor

public LeafValueEditor<java.lang.Boolean> asEditor()

Description copied from interface: IsEditor

Returns the Editor encapsulated by the view object.

Specified by:

asEditor in interface IsEditor<LeafValueEditor<java.lang.Boolean>>

Returns:

an Editor of type E

getValue

public java.lang.Boolean getValue()

Determines whether this button is currently down.

Specified by:

getValue in interface TakesValue<java.lang.Boolean>

Specified by:

getValue in interface HasValue<java.lang.Boolean>

Returns:

true if the button is pressed, false otherwise. Will not return null

See Also:

TakesValue.setValue(V)

isDown

public boolean isDown()

Description copied from class: CustomButton

Is this button down?

Overrides:

isDown in class CustomButton

Returns:

true if the button is down

setDown

public void setDown(boolean down)

Sets whether this button is down. Does not fire ValueChangeEvent. (If you want the event to fire, use setValue(Boolean, boolean))

Overrides:

setDown in class CustomButton

Parameters:

down - true to press the button, false otherwise

setValue

public void setValue(java.lang.Boolean value)

Sets whether this button is down.

Specified by:

setValue in interface TakesValue<java.lang.Boolean>

Specified by:

setValue in interface HasValue<java.lang.Boolean>

Parameters:

value - true to press the button, false otherwise; null value implies false

See Also:

TakesValue.getValue()

setValue

public void setValue(java.lang.Boolean value,
                     boolean fireEvents)

Sets whether this button is down, firing ValueChangeEvent if appropriate.

Specified by:

setValue in interface HasValue<java.lang.Boolean>

Parameters:

value - true to press the button, false otherwise; null value implies false

fireEvents - If true, and value has changed, fire a ValueChangeEvent

onClick

protected void onClick()

Description copied from class: CustomButton

Called when the user finishes clicking on this button. The default behavior is to fire the click event to listeners. Subclasses that override CustomButton.onClickStart() should override this method to restore the normal widget display.

Overrides:

onClick in class CustomButton