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com.google.gwt.widget.client
Class ButtonBase<C>

java.lang.Object
  extended by com.google.gwt.user.client.ui.UIObject
      extended by com.google.gwt.user.client.ui.Widget
          extended by com.google.gwt.user.cellview.client.CellWidget<C>
              extended by com.google.gwt.widget.client.ButtonBase<C>
Type Parameters:
C - the data type of the button's contents
All Implemented Interfaces:
IsCollapsible, IsEditor<LeafValueEditor<C>>, HasAllFocusHandlers, HasAllKeyHandlers, HasBlurHandlers, HasClickHandlers, HasFocusHandlers, HasKeyDownHandlers, HasKeyPressHandlers, HasKeyUpHandlers, HasMouseDownHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasMouseUpHandlers, HasAttachHandlers, HasValueChangeHandlers<C>, HasHandlers, EventListener, TakesValue<C>, Focusable, HasEnabled, HasValue<C>, HasVisibility, IsWidget, HasKeyProvider<C>
Direct Known Subclasses:
TextButton
public class ButtonBase<C>
extends CellWidget<C>
implements HasEnabled, Focusable, IsCollapsible, HasAllFocusHandlers, HasMouseDownHandlers, HasMouseUpHandlers, HasMouseOutHandlers, HasMouseOverHandlers, HasClickHandlers, HasAllKeyHandlers

Base class for buttons that supports content decoration.

Nested Class Summary
 
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.UIObject
DEBUG_ID_PREFIX
 
Constructor Summary
protected ButtonBase(ButtonCellBase<C> cell)
          Construct a new ButtonBase with the specified cell and an initial value of null.
protected ButtonBase(ButtonCellBase<C> cell, C initialValue)
          Construct a new ButtonBase with the specified cell and initial value.
 
Method Summary
 HandlerRegistration addBlurHandler(BlurHandler handler)
          Adds a BlurEvent handler.
 HandlerRegistration addClickHandler(ClickHandler handler)
          Adds a ClickEvent handler.
 HandlerRegistration addFocusHandler(FocusHandler handler)
          Adds a FocusEvent handler.
 HandlerRegistration addKeyDownHandler(KeyDownHandler handler)
          Adds a KeyDownEvent handler.
 HandlerRegistration addKeyPressHandler(KeyPressHandler handler)
          Adds a KeyPressEvent handler.
 HandlerRegistration addKeyUpHandler(KeyUpHandler handler)
          Adds a KeyUpEvent handler.
 HandlerRegistration addMouseDownHandler(MouseDownHandler handler)
          Adds a MouseDownEvent handler.
 HandlerRegistration addMouseOutHandler(MouseOutHandler handler)
          Adds a MouseOutEvent handler.
 HandlerRegistration addMouseOverHandler(MouseOverHandler handler)
          Adds a MouseOverEvent handler.
 HandlerRegistration addMouseUpHandler(MouseUpHandler handler)
          Adds a MouseUpEvent handler.
 ButtonCellBase.Decoration getDecoration()
          Get the decoration style of the button.
 int getTabIndex()
          Gets the widget's position in the tab index.
 boolean isCollapseLeft()
          Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).
 boolean isCollapseRight()
          right Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).
 boolean isEnabled()
          Returns true if the widget is enabled, false if not.
 void setAccessKey(char key)
          Sets the widget's 'access key'.
 void setCollapseLeft(boolean isCollapsed)
          Sets whether the left-side of the UI component is collapsed (sharing border with the component to its left).
 void setCollapseRight(boolean isCollapsed)
          Sets whether the right-side of the UI component is collapsed (sharing border with the component to its right).
 void setDecoration(ButtonCellBase.Decoration decoration)
          Set the ButtonCellBase.Decoration of the button.
 void setEnabled(boolean enabled)
          Sets whether this widget is enabled.
 void setFocus(boolean focused)
          Explicitly focus/unfocus this widget.
 void setTabIndex(int index)
          Sets the widget's position in the tab index.
 
Methods inherited from class com.google.gwt.user.cellview.client.CellWidget
addValueChangeHandler, asEditor, getCell, getKeyProvider, getValue, onBrowserEvent, redraw, setValue, setValue, setValue
 
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, isAttached, isOrWasAttached, onAttach, 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
 
Methods inherited from interface com.google.gwt.event.shared.HasHandlers
fireEvent
 

Constructor Detail

ButtonBase

protected ButtonBase(ButtonCellBase<C> cell)
Construct a new ButtonBase with the specified cell and an initial value of null.

Parameters:
cell - the cell to wrap

ButtonBase

protected ButtonBase(ButtonCellBase<C> cell,
                     C initialValue)
Construct a new ButtonBase with the specified cell and initial value.

Parameters:
cell - the cell to wrap
initialValue - the initial value of the Cell
Method Detail

addBlurHandler

public HandlerRegistration addBlurHandler(BlurHandler handler)
Description copied from interface: HasBlurHandlers
Adds a BlurEvent handler.

Specified by:
addBlurHandler in interface HasBlurHandlers
Parameters:
handler - the blur handler
Returns:
HandlerRegistration used to remove this handler

addClickHandler

public HandlerRegistration addClickHandler(ClickHandler handler)
Description copied from interface: HasClickHandlers
Adds a ClickEvent handler.

Specified by:
addClickHandler in interface HasClickHandlers
Parameters:
handler - the click handler
Returns:
HandlerRegistration used to remove this handler

addFocusHandler

public HandlerRegistration addFocusHandler(FocusHandler handler)
Description copied from interface: HasFocusHandlers
Adds a FocusEvent handler.

Specified by:
addFocusHandler in interface HasFocusHandlers
Parameters:
handler - the focus handler
Returns:
HandlerRegistration used to remove this handler

addKeyDownHandler

public HandlerRegistration addKeyDownHandler(KeyDownHandler handler)
Description copied from interface: HasKeyDownHandlers
Adds a KeyDownEvent handler.

Specified by:
addKeyDownHandler in interface HasKeyDownHandlers
Parameters:
handler - the key down handler
Returns:
HandlerRegistration used to remove this handler

addKeyPressHandler

public HandlerRegistration addKeyPressHandler(KeyPressHandler handler)
Description copied from interface: HasKeyPressHandlers
Adds a KeyPressEvent handler.

Specified by:
addKeyPressHandler in interface HasKeyPressHandlers
Parameters:
handler - the key press handler
Returns:
HandlerRegistration used to remove this handler

addKeyUpHandler

public HandlerRegistration addKeyUpHandler(KeyUpHandler handler)
Description copied from interface: HasKeyUpHandlers
Adds a KeyUpEvent handler.

Specified by:
addKeyUpHandler in interface HasKeyUpHandlers
Parameters:
handler - the key up handler
Returns:
HandlerRegistration used to remove this handler

addMouseDownHandler

public HandlerRegistration addMouseDownHandler(MouseDownHandler handler)
Description copied from interface: HasMouseDownHandlers
Adds a MouseDownEvent handler.

Specified by:
addMouseDownHandler in interface HasMouseDownHandlers
Parameters:
handler - the mouse down handler
Returns:
HandlerRegistration used to remove this handler

addMouseOutHandler

public HandlerRegistration addMouseOutHandler(MouseOutHandler handler)
Description copied from interface: HasMouseOutHandlers
Adds a MouseOutEvent handler.

Specified by:
addMouseOutHandler in interface HasMouseOutHandlers
Parameters:
handler - the mouse out handler
Returns:
HandlerRegistration used to remove this handler

addMouseOverHandler

public HandlerRegistration addMouseOverHandler(MouseOverHandler handler)
Description copied from interface: HasMouseOverHandlers
Adds a MouseOverEvent handler.

Specified by:
addMouseOverHandler in interface HasMouseOverHandlers
Parameters:
handler - the mouse over handler
Returns:
HandlerRegistration used to remove this handler

addMouseUpHandler

public HandlerRegistration addMouseUpHandler(MouseUpHandler handler)
Description copied from interface: HasMouseUpHandlers
Adds a MouseUpEvent handler.

Specified by:
addMouseUpHandler in interface HasMouseUpHandlers
Parameters:
handler - the mouse up handler
Returns:
HandlerRegistration used to remove this handler

getDecoration

public ButtonCellBase.Decoration getDecoration()
Get the decoration style of the button.

getTabIndex

public int getTabIndex()
Description copied from interface: Focusable
Gets the widget's position in the tab index.

Specified by:
getTabIndex in interface Focusable
Returns:
the widget's tab index

isCollapseLeft

public boolean isCollapseLeft()
Description copied from interface: IsCollapsible
Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).

Specified by:
isCollapseLeft in interface IsCollapsible
Returns:
true if collapsed, false if not

isCollapseRight

public boolean isCollapseRight()
Description copied from interface: IsCollapsible
right Check whether or not the left-side of the UI component is collapsed (sharing border with the component to its left).

Specified by:
isCollapseRight in interface IsCollapsible
Returns:
true if collapsed, false if not

isEnabled

public boolean isEnabled()
Description copied from interface: HasEnabled
Returns true if the widget is enabled, false if not.

Specified by:
isEnabled in interface HasEnabled

setAccessKey

public void setAccessKey(char key)
Description copied from interface: Focusable
Sets the widget's 'access key'. This key is used (in conjunction with a browser-specific modifier key) to automatically focus the widget.

Specified by:
setAccessKey in interface Focusable
Parameters:
key - the widget's access key

setCollapseLeft

public void setCollapseLeft(boolean isCollapsed)
Description copied from interface: IsCollapsible
Sets whether the left-side of the UI component is collapsed (sharing border with the component to its left).

Specified by:
setCollapseLeft in interface IsCollapsible
Parameters:
isCollapsed - true if collapsed, false if not

setCollapseRight

public void setCollapseRight(boolean isCollapsed)
Description copied from interface: IsCollapsible
Sets whether the right-side of the UI component is collapsed (sharing border with the component to its right).

Specified by:
setCollapseRight in interface IsCollapsible
Parameters:
isCollapsed - true if collapsed, false if not

setDecoration

public void setDecoration(ButtonCellBase.Decoration decoration)
Set the ButtonCellBase.Decoration of the button.

Parameters:
decoration - the button decoration

setEnabled

public void setEnabled(boolean enabled)
Description copied from interface: HasEnabled
Sets whether this widget is enabled.

Specified by:
setEnabled in interface HasEnabled
Parameters:
enabled - true to enable the widget, false to disable it

setFocus

public void setFocus(boolean focused)
Description copied from interface: Focusable
Explicitly focus/unfocus this widget. Only one widget can have focus at a time, and the widget that does will receive all keyboard events.

Specified by:
setFocus in interface Focusable
Parameters:
focused - whether this widget should take focus or release it

setTabIndex

public void setTabIndex(int index)
Description copied from interface: Focusable
Sets the widget's position in the tab index. If more than one widget has the same tab index, each such widget will receive focus in an arbitrary order. Setting the tab index to -1 will cause this widget to be removed from the tab order.

Specified by:
setTabIndex in interface Focusable
Parameters:
index - the widget's tab index
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GWT 2.4.0
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