ScrollImpl (GWT Javadoc)

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GWT 2.7.0

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com.google.gwt.user.client.ui
Class ScrollImpl

java.lang.Object
  com.google.gwt.user.client.ui.ScrollImpl

Direct Known Subclasses:: ScrollImpl.ScrollImplTrident

class ScrollImpl
extends java.lang.Object
extends java.lang.Object

Implementation of scrolling behavior.

Nested Class Summary
`(package private) static class`	`ScrollImpl.ScrollImplTrident` IE does not fire a scroll event when the scrollable element or the container is resized, so we synthesize one as needed.

Constructor Summary
`ScrollImpl()`

Method Summary
`(package private) static ScrollImpl`	`get()` Get the singleton instance of `ScrollImpl`.
`int`	`getMaximumHorizontalScrollPosition(Element scrollable)` Get the maximum horizontal scroll position.
`int`	`getMinimumHorizontalScrollPosition(Element scrollable)` Get the minimum horizontal scroll position.
`void`	`initialize(Element scrollable, Element container)` Initialize a scrollable element.
`boolean`	`isRtl(Element scrollable)` Check if the specified element has an RTL direction.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

ScrollImpl

ScrollImpl()

Method Detail

get

static ScrollImpl get()

Get the singleton instance of ScrollImpl.

getMaximumHorizontalScrollPosition

public int getMaximumHorizontalScrollPosition(Element scrollable)

Get the maximum horizontal scroll position.

Parameters:: scrollable - the scrollable element
Returns:: the maximum scroll position

getMinimumHorizontalScrollPosition

public int getMinimumHorizontalScrollPosition(Element scrollable)

Get the minimum horizontal scroll position.

Parameters:: scrollable - the scrollable element
Returns:: the minimum scroll position

initialize

public void initialize(Element scrollable,
                       Element container)

Initialize a scrollable element.

Parameters:: scrollable - the scrollable element; container - the container

isRtl

public boolean isRtl(Element scrollable)

Check if the specified element has an RTL direction. We can't base this on the current locale because the user can modify the direction at the DOM level.

Parameters:: scrollable - the scrollable element
Returns:: true if the direction is RTL, false if LTR