com.google.gwt.user.client.ui

Class NativeVerticalScrollbar

java.lang.Object

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

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

com.google.gwt.user.client.ui.AbstractNativeScrollbar

com.google.gwt.user.client.ui.NativeVerticalScrollbar

All Implemented Interfaces:

HasScrollHandlers, HasAttachHandlers, HasHandlers, EventListener, HasVerticalScrolling, HasVisibility, IsWidget, VerticalScrollbar

public class NativeVerticalScrollbar
extends AbstractNativeScrollbar
implements VerticalScrollbar

A vertical scrollbar implemented using the browsers native scrollbar.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	NativeVerticalScrollbar.Resources A ClientBundle of resources used by this widget.
static interface	NativeVerticalScrollbar.ResourcesTransparant A variation of NativeVerticalScrollbar.Resources that renders the scrollbar semi-transparent until it is hovered.
static interface	NativeVerticalScrollbar.Style Styles used by this widget.
static interface	NativeVerticalScrollbar.StyleTransparant A variation of NativeVerticalScrollbar.Style that renders the scrollbar semi-transparent until it is hovered.

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

Constructors

Constructor and Description
NativeVerticalScrollbar() Construct a new NativeVerticalScrollbar.
NativeVerticalScrollbar(NativeVerticalScrollbar.Resources resources) Construct a new NativeVerticalScrollbar.

Method Summary

Modifier and Type	Method and Description
int	getMaximumVerticalScrollPosition() Get the maximum position of vertical scrolling.
int	getMinimumVerticalScrollPosition() Get the minimum position of vertical scrolling.
protected int	getNativeWidth() Get the width of the scrollbar.
protected Element	getScrollableElement() Get the scrollable element.
int	getScrollHeight() Get the height in pixels of the scrollable content that the scrollbar controls.
int	getVerticalScrollPosition() Gets the vertical scroll position.
void	setScrollHeight(int height) Set the height in pixels of the scrollable content that the scrollbar controls.
void	setVerticalScrollPosition(int position) Sets the vertical scroll position.

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

addScrollHandler, getNativeScrollbarHeight, getNativeScrollbarWidth, isScrollbarLeftAlignedInRtl, onAttach, onDetach

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, onBrowserEvent, 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, 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

equals, finalize, getClass, hashCode

Methods inherited from interface com.google.gwt.event.dom.client.HasScrollHandlers

addScrollHandler

Methods inherited from interface com.google.gwt.event.shared.HasHandlers

fireEvent

Methods inherited from interface com.google.gwt.user.client.ui.IsWidget

asWidget

Constructor Detail

NativeVerticalScrollbar

public NativeVerticalScrollbar()

Construct a new NativeVerticalScrollbar.

NativeVerticalScrollbar

public NativeVerticalScrollbar(NativeVerticalScrollbar.Resources resources)

Construct a new NativeVerticalScrollbar.

Parameters:

resources - the resources used by this widget

Method Detail

getMaximumVerticalScrollPosition

public int getMaximumVerticalScrollPosition()

Description copied from interface: HasVerticalScrolling

Get the maximum position of vertical scrolling. This is usually the scrollHeight - clientHeight.

Specified by:

getMaximumVerticalScrollPosition in interface HasVerticalScrolling

Returns:

the maximum vertical scroll position

getMinimumVerticalScrollPosition

public int getMinimumVerticalScrollPosition()

Description copied from interface: HasVerticalScrolling

Get the minimum position of vertical scrolling.

Specified by:

getMinimumVerticalScrollPosition in interface HasVerticalScrolling

Returns:

the minimum vertical scroll position

getScrollHeight

public int getScrollHeight()

Get the height in pixels of the scrollable content that the scrollbar controls.

This is not the same as the maximum scroll top position. The maximum scroll position equals the scrollHeight- offsetHeight;

Specified by:

getScrollHeight in interface VerticalScrollbar

Returns:

the scroll height

See Also:

setScrollHeight(int)

getVerticalScrollPosition

public int getVerticalScrollPosition()

Description copied from interface: HasVerticalScrolling

Gets the vertical scroll position.

Specified by:

getVerticalScrollPosition in interface HasVerticalScrolling

Returns:

the vertical scroll position, in pixels

setScrollHeight

public void setScrollHeight(int height)

Set the height in pixels of the scrollable content that the scrollbar controls.

This is not the same as the maximum scroll top position. The maximum scroll position equals the scrollHeight- offsetHeight;

Specified by:

setScrollHeight in interface VerticalScrollbar

Parameters:

height - the size height pixels

setVerticalScrollPosition

public void setVerticalScrollPosition(int position)

Description copied from interface: HasVerticalScrolling

Sets the vertical scroll position.

Specified by:

setVerticalScrollPosition in interface HasVerticalScrolling

Parameters:

position - the new vertical scroll position, in pixels

getNativeWidth

protected int getNativeWidth()

Get the width of the scrollbar.

Returns:

the width of the scrollbar in pixels

getScrollableElement

protected Element getScrollableElement()

Description copied from class: AbstractNativeScrollbar

Get the scrollable element.

Specified by:

getScrollableElement in class AbstractNativeScrollbar

Returns:

the scrollable element