How to use

setScrollLeft

method

in

com.google.gwt.user.client.Element

/**
 * Sets the horizontal scroll position.
 * 
 * @param position the new horizontal scroll position, in pixels
 */
public void setHorizontalScrollPosition(int position) {
 getScrollableElement().setScrollLeft(position);
}

@Override
protected void onUpdate(double progress) {
 int diff = targetScrollLeft - startScrollLeft;
 getElement().setScrollLeft(startScrollLeft + (int) (diff * progress));
}

@Override
protected void onComplete() {
 getElement().setScrollLeft(targetScrollLeft);
}

/**
 * Sets the scroll property of the header and footers wrappers when scrolling
 * so that the header, footer, and data tables line up.
 *
 * @param baseHeader true to scroll the data table as well
 */
protected void scrollTables(boolean baseHeader) {
 if (scrollPolicy == ScrollPolicy.DISABLED) {
  return;
 }
 if (lastScrollLeft >= 0) {
  headerWrapper.setScrollLeft(lastScrollLeft);
  if (baseHeader) {
   dataWrapper.setScrollLeft(lastScrollLeft);
  }
  if (footerWrapper != null) {
   footerWrapper.setScrollLeft(lastScrollLeft);
  }
 }
}

getElement().setScrollLeft(0);

@Override
protected void onComplete() {
 getElement().setScrollLeft(targetScrollLeft);
}

@Override
protected void onUpdate(double progress) {
 int diff = targetScrollLeft - startScrollLeft;
 getElement().setScrollLeft(startScrollLeft + (int) (diff * progress));
}

/**
 * Sets the horizontal scroll position.
 * 
 * @param position the new horizontal scroll position, in pixels
 */
public void setHorizontalScrollPosition(int position) {
 getScrollableElement().setScrollLeft(position);
}

/**
 * Sets the horizontal scroll position.
 * 
 * @param position the new horizontal scroll position, in pixels
 */
public void setHorizontalScrollPosition(int position) {
 getScrollableElement().setScrollLeft(position);
}

@Override
protected void onUpdate(double progress) {
 int diff = targetScrollLeft - startScrollLeft;
 getElement().setScrollLeft(startScrollLeft + (int) (diff * progress));
}

@Override
protected void onComplete() {
 getElement().setScrollLeft(targetScrollLeft);
}

  public void setScrollLeft(int scrollLeft) {
    this.scrollLeft = scrollLeft;

    scrollBoxStateTrigger.cancel();
    getElement().setScrollLeft(scrollLeft);
  }
}

void setScrollLeft(final Integer scrollLeft) {
  scrollPanel().getElement().setScrollLeft(scrollLeft);
}

void setScrollLeft(final Integer scrollLeft) {
  scrollPanel().getElement().setScrollLeft(scrollLeft);
}

  @Override
  public void onScroll(final ScrollEvent scrollEvent) {
    domElementContainer.getElement().setScrollTop(0);
    domElementContainer.getElement().setScrollLeft(0);
  }
},

  @Override
  public void onScroll(final ScrollEvent scrollEvent) {
    domElementContainer.getElement().setScrollTop(0);
    domElementContainer.getElement().setScrollLeft(0);
  }
},

 @Override
 public void setColumnWidth(HTMLTable table, Element ghostRow, int column,
   int width) {
  super.setColumnWidth(table, ghostRow, column, width);
  Element tableElem = table.getElement();
  Element parentElem = DOM.getParent(tableElem);
  int scrollLeft = 0;
  if (parentElem != null) {
   scrollLeft = parentElem.getScrollLeft();
  }
  tableElem.getStyle().setProperty("display", "none");
  tableElem.getStyle().setProperty("display", "");
  if (parentElem != null) {
   parentElem.setScrollLeft(scrollLeft);
  }
 }
}

/**
 * @param latexItem
 *            panel to be scrolled
 * @param margin
 *            minimal distance from cursor to left/right border
 */
public static void scrollParent(FlowPanel latexItem, int margin) {
  if (latexItem.getOffsetWidth() + latexItem.getElement().getScrollLeft()
      - margin < CursorBox.startX) {
    latexItem.getElement().setScrollLeft((int) CursorBox.startX
        - latexItem.getOffsetWidth() + margin);
  } else if (CursorBox.startX < latexItem.getElement().getScrollLeft()
      + margin) {
    latexItem.getElement()
        .setScrollLeft((int) CursorBox.startX - margin);
  }
}

void onCanvasFocusedSelectionEvent(final @Observes CanvasFocusedShapeEvent event) {
  getSessionContainer().getElement().setScrollLeft(event.getX());
  getSessionContainer().getElement().setScrollTop(event.getY());
}

@Test
public void testOnCanvasFocusedSelectionEvent() {
  final SessionPresenterView view = spy(new SessionPresenterView());
  final CanvasFocusedShapeEvent event = mock(CanvasFocusedShapeEvent.class);
  final com.google.gwt.user.client.Element element = mock(com.google.gwt.user.client.Element.class);
  final int eventX = 101;
  final int eventY = 110;
  when(event.getX()).thenReturn(eventX);
  when(event.getY()).thenReturn(eventY);
  when(sessionContainer.getElement()).thenReturn(element);
  doReturn(sessionContainer).when(view).getSessionContainer();
  view.onCanvasFocusedSelectionEvent(event);
  verify(element).setScrollLeft(eventX);
  verify(element).setScrollTop(eventY);
}