Java 类com.google.gwt.event.dom.client.ScrollEvent 实例源码

项目：Peergos 文件：ShowMorePagerPanel.java

/**
 * Construct a new {@link ShowMorePagerPanel}.
 */
public ShowMorePagerPanel() {
  initWidget(scrollable);

  // Do not let the scrollable take tab focus.
  scrollable.getElement().setTabIndex(-1);

  // Handle scroll events.
  scrollable.addScrollHandler(new ScrollHandler() {
    public void onScroll(ScrollEvent event) {
      // If scrolling up, ignore the event.
      int oldScrollPos = lastScrollPos;
      lastScrollPos = scrollable.getVerticalScrollPosition();
      if (oldScrollPos >= lastScrollPos) {
        return;
      }

      HasRows display = getDisplay();
      if (display == null) {
        return;
      }
      int maxScrollTop = scrollable.getWidget().getOffsetHeight()
          - scrollable.getOffsetHeight();
      if (lastScrollPos >= maxScrollTop) {
        // We are near the end, so increase the page size.
        int newPageSize = Math.min(
            display.getVisibleRange().getLength() + incrementSize,
            display.getRowCount());
        display.setVisibleRange(0, newPageSize);
      }
    }
  });
}

项目：che 文件：OutputConsoleViewImpl.java

@Override
public void onScroll(ScrollEvent event) {
  // Do nothing if content height less scroll area height
  if (scrollPanel.getElement().getScrollHeight() < scrollPanel.getElement().getOffsetHeight()) {
    followOutput = true;
    if (delegate != null) {
      delegate.onOutputScrolled(followOutput);
    }
    return;
  }

  // Follow output if scroll area is scrolled to the end
  if (scrollPanel.getElement().getScrollTop() + scrollPanel.getElement().getOffsetHeight()
      >= scrollPanel.getElement().getScrollHeight()) {
    followOutput = true;
  } else {
    followOutput = false;
  }

  if (delegate != null) {
    delegate.onOutputScrolled(followOutput);
  }
}

项目：vaadin-scrollable-panel 文件：ScrollablePanelWidget.java

public ScrollablePanelWidget() {
    super();
    setTouchScrollingDisabled(true);

    addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(final ScrollEvent event) {
            ScrollablePanelWidget.this.currentScrollingPos = new ScrollData();

            if (event != null && event.getRelativeElement() != null) {
                final Element e = event.getRelativeElement();

                ScrollablePanelWidget.this.currentScrollingPos.setTop(e.getScrollTop());
                ScrollablePanelWidget.this.currentScrollingPos.setLeft(e.getScrollLeft());
                ScrollablePanelWidget.this.currentScrollingPos.setBottom(e.getScrollHeight() - (e.getScrollTop() + e.getOffsetHeight()));
                ScrollablePanelWidget.this.currentScrollingPos.setRight(e.getScrollWidth() - (e.getScrollLeft() + e.getOffsetWidth()));
                ScrollablePanelWidget.this.currentScrollingPos.setScrollHeight(e.getScrollHeight());
                ScrollablePanelWidget.this.currentScrollingPos.setScrollWidth(e.getScrollWidth());
            }

            startTrigger();
        }
    });

}

项目：appformer 文件：GridLienzoPanel.java

private void setupDefaultHandlers() {
    //Prevent DOMElements scrolling into view when they receive the focus
    domElementContainer.addDomHandler(new ScrollHandler() {

                                          @Override
                                          public void onScroll(final ScrollEvent scrollEvent) {
                                              domElementContainer.getElement().setScrollTop(0);
                                              domElementContainer.getElement().setScrollLeft(0);
                                          }
                                      },
                                      ScrollEvent.getType());
    addAttachHandler(new AttachEvent.Handler() {
        @Override
        public void onAttachOrDetach(final AttachEvent event) {
            if (event.isAttached()) {
                onResize();
            }
        }
    });
    addMouseDownHandler((e) -> setFocus(true));
}

项目：appformer 文件：GridLienzoScrollHandlerTest.java

@Test
public void testSetupScrollBarSynchronization() {

    final AbsolutePanel scrollPanel = mock(AbsolutePanel.class);
    final ScrollHandler scrollHandler = mock(ScrollHandler.class);

    doReturn(scrollHandler).when(gridLienzoScrollHandler).onScroll();
    doReturn(scrollPanel).when(gridLienzoScrollHandler).getScrollPanel();
    doNothing().when(gridLienzoScrollHandler).synchronizeScrollSize();

    gridLienzoScrollHandler.setupScrollBarSynchronization();

    verify(gridLienzoScrollHandler).synchronizeScrollSize();
    verify(scrollPanel).addDomHandler(scrollHandler,
                                      ScrollEvent.getType());
}

项目：gwt-gantt 文件：GanttChartView.java

public void init() {
        taskScrollPanel.getElement().getStyle().setPosition(Position.ABSOLUTE);
        taskScrollPanel.getElement().getStyle().setOverflow(Overflow.SCROLL);

        //initialize the SVG panel
        initSVG();

        //add scroll handler
        taskScrollPanel.addScrollHandler(new ScrollHandler() {

            @Override
            public void onScroll(ScrollEvent event) {
                int hscroll = taskScrollPanel.getHorizontalScrollPosition() * -1;

                firstHeaderRow.getElement().getStyle().setLeft(hscroll, Unit.PX);
                secondHeaderRow.getElement().getStyle().setLeft(hscroll, Unit.PX);
                taskBackgroundPanel.getElement().getStyle().setLeft(hscroll, Unit.PX);
                display.fireEvent(event);
//                view.onScroll(taskScrollPanel.getHorizontalScrollPosition(),
//                        taskScrollPanel.getScrollPosition());
            }
        });
    }

项目：LazyLayouts 文件：LazyVerticalLayoutConnector.java

protected void attachScrollingEvents(ComponentConnector connector) {
    Widget widget = connector.getWidget();
    if(widget instanceof LazyScrollNotifier) {
        LazyScrollNotifier not = (LazyScrollNotifier) widget;
        scrollingElement = not.getLazyScrollingElement();
        not.addLazyScrollListener(this);
    } else if (widget instanceof VWindow) {
        final VWindow window = (VWindow)widget;
        scrollingElement = window.contentPanel.getElement();
        handlerRegistration = ((VWindow)widget).contentPanel.addScrollHandler(new ScrollHandler() {
            @Override
            public void onScroll(ScrollEvent event) {
                onLazyScroll(window.contentPanel.getElement());
            }
        });
    } else {
        LOGGER.severe("Failed to connect to scrolling events of " + connector.getClass().getName());
    }
}

项目：gantt 文件：GanttWidget.java

@Override
public void onScroll(ScrollEvent event) {
    final Element element = event.getNativeEvent().getEventTarget().cast();
    if (element != container) {
        return;
    }
    AnimationScheduler.get().requestAnimationFrame(new AnimationCallback() {

        @Override
        public void execute(double timestamp) {
            int sl = container.getScrollLeft();
            int st = container.getScrollTop();
            if (sl != previousContainerScrollLeft) {
                timeline.setScrollLeft(sl);
                previousContainerScrollLeft = sl;
            }
            if (st != previousContainerScrollTop) {
                previousContainerScrollTop = st;
            }
        }
    });
}

项目：gantt 文件：GanttConnector.java

private void updateVerticalScrollGridDelegation() {
    // register scroll handler to Gantt widget
    ganttScrollHandlerRegistration = getWidget().addDomHandler(ganttScrollHandler, ScrollEvent.getType());

    scrollDelegateHandlerRegistration = delegateScrollGridTarget.addScrollHandler(gridScrollDelegateTargetHandler);

    // add detach listener to unregister scroll handler when its
    // detached.
    delegateScrollGridTarget.addAttachHandler(new Handler() {

        @Override
        public void onAttachOrDetach(AttachEvent event) {
            if (!event.isAttached() && scrollDelegateHandlerRegistration != null) {
                scrollDelegateHandlerRegistration.removeHandler();
            }
        }
    });
}

项目：gantt 文件：GanttConnector.java

private void updateVerticalScrollTableDelegation() {
    // register scroll handler to Gantt widget
    ganttScrollHandlerRegistration = getWidget().addDomHandler(ganttScrollHandler, ScrollEvent.getType());

    // register a scroll handler to 'delegation' scroll panel.
    scrollDelegateHandlerRegistration = delegateScrollPanelTarget.addScrollHandler(scrollDelegateTargetHandler);

    // add detach listener to unregister scroll handler when its
    // detached.
    delegateScrollPanelTarget.addAttachHandler(new Handler() {

        @Override
        public void onAttachOrDetach(AttachEvent event) {
            if (!event.isAttached() && scrollDelegateHandlerRegistration != null) {
                scrollDelegateHandlerRegistration.removeHandler();
            }
        }
    });
}

项目：drools-wb 文件：GuidedDecisionTableModellerViewImpl.java

void setupGridPanel() {
    //Lienzo stuff - Set default scale
    final Transform transform = newTransform().scale(VP_SCALE);
    gridPanel.getViewport().setTransform(transform);

    //Lienzo stuff - Add mouse pan support
    defaultTransformMediator = new BoundaryTransformMediator(GuidedDecisionTableModellerViewImpl.this);
    mousePanMediator.setTransformMediator(defaultTransformMediator);
    gridPanel.getViewport().getMediators().push(mousePanMediator);
    mousePanMediator.setBatchDraw(true);

    gridPanel.setBounds(getBounds());
    gridPanel.getScrollPanel().addDomHandler(scrollEvent -> getPresenter().updateRadar(),
                                             ScrollEvent.getType());

    //Wire-up widgets
    gridPanel.add(gridLayer);

    //Set ID on GridLienzoPanel for Selenium tests.
    gridPanel.getElement().setId("dtable_container_" + Document.get().createUniqueId());
}

项目：swarm 文件：SignInOrUpPanel.java

public SignInOrUpPanel(ViewContext viewContext)
{
    m_viewContext = viewContext;

    m_signIn = new SignInPanel(viewContext);
    m_signUp = new SignUpPanel(viewContext);

    this.addStyleName("sm_signuporin_panel");
    m_innerContainer.setSize("100%", "100%");

    m_innerContainer.add(m_signIn);
    m_innerContainer.add(m_signUp);

    this.add(m_innerContainer);

    this.addDomHandler(this, ScrollEvent.getType());
}

项目：EasyML 文件：DiagramController.java

/**
 * Get the scroll panel in the drawing cavcas.
 * @return
 */
public ScrollPanel getViewAsScrollPanel() {
    scrollPanel.addScrollHandler(new ScrollHandler() {
        @Override
        public void onScroll(ScrollEvent event) {
        }
    });
    return scrollPanel;
}

项目：che 文件：ResetToCommitViewImpl.java

@UiHandler("revisionsPanel")
public void onPanelScrolled(ScrollEvent ignored) {
  // We cannot rely on exact equality of scroll positions because GWT sometimes round such values
  // and it is possible that the actual max scroll position is a pixel less then declared.
  if (revisionsPanel.getMaximumVerticalScrollPosition()
          - revisionsPanel.getVerticalScrollPosition()
      <= 1) {
    // to avoid autoscrolling to selected item
    revisionsPanel.getElement().focus();

    delegate.onScrolledToBottom();
  }
}

项目：che 文件：RevertCommitViewImpl.java

@UiHandler("revisionsPanel")
public void onPanelScrolled(ScrollEvent ignored) {
  // We cannot rely on exact equality of scroll positions because GWT sometimes round such values
  // and it is possible that the actual max scroll position is a pixel less then declared.
  if (revisionsPanel.getMaximumVerticalScrollPosition()
          - revisionsPanel.getVerticalScrollPosition()
      <= 1) {
    // to avoid autoscrolling to selected item
    revisionsPanel.getElement().focus();

    delegate.onScrolledToBottom();
  }
}

项目：che 文件：HistoryViewImpl.java

@UiHandler("revisionsPanel")
public void onPanelScrolled(ScrollEvent ignored) {
  // We cannot rely on exact equality of scroll positions because GWT sometimes round such values
  // and it is possible that the actual max scroll position is a pixel less then declared.
  if (revisionsPanel.getMaximumVerticalScrollPosition()
          - revisionsPanel.getVerticalScrollPosition()
      <= 1) {
    // to avoid autoscrolling to selected item
    revisionsPanel.getElement().focus();

    delegate.onScrolledToButton();
  }
}

项目：djvu-html5 文件：UIHider.java

public UIHider(int uiHideDelay, Widget textLayer) {
    this.uiHideDelay = uiHideDelay;
    textLayer.addDomHandler(this, MouseMoveEvent.getType());
    textLayer.addDomHandler(this, KeyDownEvent.getType());
    textLayer.addDomHandler(this, ScrollEvent.getType());
    textLayer.addDomHandler(this, TouchStartEvent.getType());
}

项目：djvu-html5 文件：TextLayer.java

public TextLayer(Djvu_html5 app) {
    this.app = app;
    setStyleName("textLayer");
    getElement().setAttribute("tabindex", "-1");

    addDomHandler(this, ScrollEvent.getType());

    app.getDataStore().addInfoListener(this::pageInfoAvailable);
    if (DjvuContext.getTextLayerEnabled())
        app.getDataStore().addTextListener(this::textAvailable);

    fontMeasure = Canvas.createIfSupported().getContext2d();
}

项目：djvu-html5 文件：TextLayer.java

@Override
public void onScroll(ScrollEvent event) {
    int scrollTop = getElement().getScrollTop();
    int page = currentPage;
    Element pageElement = pages.get(page).getElement();
    while (page > 0 && pageElement.getOffsetTop() > scrollTop) {
        pageElement = pages.get(--page).getElement();
    }
    while (page + 1 < pages.size() && pageElement.getOffsetTop() + pageElement.getOffsetHeight() < scrollTop) {
        pageElement = pages.get(++page).getElement();
    }
    int left = pageElement.getOffsetLeft() - getElement().getScrollLeft();
    int top = pageElement.getOffsetTop() - scrollTop;
    app.getPageLayout().externalScroll(page, left, top);
}

项目：appformer 文件：GridLienzoScrollHandler.java

ScrollHandler onScroll() {
    return (ScrollEvent event) -> {
        final Boolean mouseIsNotDragging = !getMousePanMediator().isDragging();

        if (mouseIsNotDragging) {
            updateGridLienzoPosition();
        }
    };
}

项目：appformer 文件：GridLienzoScrollHandlerTest.java

@Test
public void testOnScrollWhenMouseIsNotDragging() {

    final RestrictedMousePanMediator mediator = mock(RestrictedMousePanMediator.class);
    final ScrollEvent scrollEvent = mock(ScrollEvent.class);

    doReturn(false).when(mediator).isDragging();
    doReturn(mediator).when(gridLienzoScrollHandler).getMousePanMediator();
    doNothing().when(gridLienzoScrollHandler).updateGridLienzoPosition();

    final ScrollHandler scrollHandler = gridLienzoScrollHandler.onScroll();
    scrollHandler.onScroll(scrollEvent);

    verify(gridLienzoScrollHandler).updateGridLienzoPosition();
}

项目：appformer 文件：GridLienzoScrollHandlerTest.java

@Test
public void testOnScrollWhenMouseIsDragging() {

    final RestrictedMousePanMediator mediator = mock(RestrictedMousePanMediator.class);
    final ScrollEvent scrollEvent = mock(ScrollEvent.class);

    doReturn(true).when(mediator).isDragging();
    doReturn(mediator).when(gridLienzoScrollHandler).getMousePanMediator();

    final ScrollHandler scrollHandler = gridLienzoScrollHandler.onScroll();
    scrollHandler.onScroll(scrollEvent);

    verify(gridLienzoScrollHandler,
           never()).updateGridLienzoPosition();
}

项目：LazyList 文件：LazyListWidget.java

@Override
public void onScroll(ScrollEvent event) {
    checkMoreItemsSpinnerIsMeasured();
    if (noItemsFound && !moreItemsSpinnerIsVisible()) {
        noItemsFound = false;
    }
    if (!fetchingMoreItems && moreItemsSpinnerIsVisible()) {
        if (noItemsFound) {
            return;
        }
        log("LazyList: fetch more items");
        fetchMoreItems();
        add(moreItemsSpinner);
    }
}

项目：mechaverse 文件：SimulationPresenter.java

private void addScrollHandler() {
  if (scrollHandler != null) {
    scrollHandler.removeHandler();
  }
  scrollHandler = view.addScrollHandler(new ScrollHandler() {
    @Override
    public void onScroll(ScrollEvent event) {
      updateTimer.cancel();
      updateTimer.schedule(UPDATE_INTERVAL);
    }
  });
}

项目：gantt 文件：GanttConnector.java

@Override
public void onScroll(ScrollEvent event) {
    if (delegatingVerticalScroll) {
        // if other component is scrolling, don't allow this scroll
        // event
        return;
    }
    AnimationScheduler.get().requestAnimationFrame(new AnimationCallback() {

        @Override
        public void execute(double timestamp) {
            ganttScrollDelay.cancel();
            ganttDelegatingVerticalScroll = true;
            int scrollTop = getWidget().getScrollContainer().getScrollTop();
            try {
                if (delegateScrollPanelTarget != null) {
                    delegateScrollPanelTarget.setScrollPosition(scrollTop);

                } else if (delegateScrollGridTarget != null) {
                    delegateScrollGridTarget.setScrollTop(scrollTop);
                }

            } finally {
                ganttScrollDelay.schedule(20);
            }
        }
    });
}

项目：gantt 文件：GanttConnector.java

@Override
public void onScroll(ScrollEvent event) {
    if (ganttDelegatingVerticalScroll) {
        // if gantt is scrolling, don't allow this scroll event
        return;
    }
    AnimationScheduler.get().requestAnimationFrame(new AnimationCallback() {

        @Override
        public void execute(double timestamp) {
            onDelegateScroll();
        }
    });
}

项目：gantt 文件：GanttConnector.java

@Override
public void onScroll(com.vaadin.client.widget.grid.events.ScrollEvent event) {
    if (ganttDelegatingVerticalScroll) {
        // if gantt is scrolling, don't allow this scroll event
        return;
    }
    AnimationScheduler.get().requestAnimationFrame(new AnimationCallback() {

        @Override
        public void execute(double timestamp) {
            onDelegateScroll();
        }
    });
}

项目：drools-wb 文件：GuidedDecisionTableModellerViewImplTest.java

@Test
public void testRadarIsUpdatedAfterScrolling() throws Exception {
    final ArgumentCaptor<ScrollHandler> scrollHandler = ArgumentCaptor.forClass(ScrollHandler.class);
    final ScrollEvent scrollEvent = mock(ScrollEvent.class);
    final AbsolutePanel mainPanel = mock(AbsolutePanel.class);
    final Transform transform = mock(Transform.class);
    final Viewport viewport = mock(Viewport.class);
    final Mediators mediators = mock(Mediators.class);
    final Element element = mock(Element.class);

    doReturn(transform).when(transform).scale(anyDouble());

    doReturn(presenter).when(view).getPresenter();
    doReturn(transform).when(view).newTransform();

    doReturn(mediators).when(viewport).getMediators();

    doReturn(element).when(mockGridPanel).getElement();
    doReturn(mainPanel).when(mockGridPanel).getScrollPanel();
    doReturn(viewport).when(mockGridPanel).getViewport();

    view.setupGridPanel();

    verify(mainPanel).addDomHandler(scrollHandler.capture(),
                                    eq(ScrollEvent.getType()));

    scrollHandler.getValue().onScroll(scrollEvent);

    verify(presenter).updateRadar();
}

项目：drools-wb 文件：VerticalDecoratedTemplateDataGridWidget.java

/**
 * Return a ScrollHandler to ensure the Header and Sidebar are repositioned
 * according to the position of the scroll bars surrounding the GridWidget
 */
@Override
protected ScrollHandler getScrollHandler() {
    return new ScrollHandler() {

        public void onScroll( ScrollEvent event ) {
            headerWidget.setScrollPosition( scrollPanel.getHorizontalScrollPosition() );
            sidebarWidget.setScrollPosition( scrollPanel.getVerticalScrollPosition() );
        }

    };
}

项目：kie-wb-common 文件：SessionPresenterView.java

@EventHandler("sessionContainer")
protected void onScroll(@ForEvent("scroll") ScrollEvent e) {
    // on the editor scroll recalculate palette position to be fixed on the screen
    palettePanel.getElement().getStyle().setTop(paletteInitialTop + e.getRelativeElement().getScrollTop(), Style.Unit.PX);
    palettePanel.getElement().getStyle().setLeft(paletteInitialLeft + e.getRelativeElement().getScrollLeft(), Style.Unit.PX);

    e.preventDefault();
}

项目：swarm 文件：ScrollNavigator.java

public ScrollNavigator(ViewContext viewContext, Panel scrollContainer, Panel scrollee, Panel mouseLayer)
{
    m_viewContext = viewContext;
    m_scrollContainer = scrollContainer;
    m_scrollContainerInner = scrollee;
    m_mouseLayer = mouseLayer;
    m_scrollBarWidthDiv2 = (int) Math.floor(((double)U_Css.getScrollBarWidth())/2);
    m_cellHudHeight = viewContext.appConfig.cellHudHeight;

    m_scrollContainer.getElement().getStyle().setZIndex(1);

    m_args_SnapToCoord.historyShouldIgnore = true;

    m_scrollContainer.addDomHandler(new ScrollHandler()
    {
        @Override
        public void onScroll(ScrollEvent event)
        {
            State_ViewingCell viewingState =  m_viewContext.stateContext.get(State_ViewingCell.class);
            if( viewingState != null )
            {
                VisualCell cell = (VisualCell)viewingState.getCell().getVisualization();
                setTargetLayout(cell);
                //m_viewContext.cellMngr.updateCellTransforms(0.0);
            }
            else
            {
                //--- DRK > I guess when we leave viewing state and reset scroll left/top to zero,
                //---       that fires a scroll event, so valid case here...ASSERT removed for now.
                //smU_Debug.ASSERT(false, "Expected viewing state to be entered.");
            }

            if( m_scrollListener != null )  m_scrollListener.onScroll();
        }

    }, ScrollEvent.getType());

    this.toggleScrollBars(null, null);
}

项目：swarm 文件：ShowMorePagerPanel.java

/**
 * Construct a new {@link ShowMorePagerPanel}.
 */
public ShowMorePagerPanel() {
  initWidget(scrollable);

  // Do not let the scrollable take tab focus.
  scrollable.getElement().setTabIndex(-1);

  // Handle scroll events.
  scrollable.addScrollHandler(new ScrollHandler() {
    public void onScroll(ScrollEvent event) {
      // If scrolling up, ignore the event.
      int oldScrollPos = lastScrollPos;
      lastScrollPos = scrollable.getVerticalScrollPosition();
      if (oldScrollPos >= lastScrollPos) {
        return;
      }

      HasRows display = getDisplay();
      if (display == null) {
        return;
      }
      int maxScrollTop = scrollable.getWidget().getOffsetHeight()
          - scrollable.getOffsetHeight();
      if (lastScrollPos >= maxScrollTop) {
        // We are near the end, so increase the page size.
        int newPageSize = Math.min(
            display.getVisibleRange().getLength() + incrementSize,
            display.getRowCount());
        display.setVisibleRange(0, newPageSize);
      }
    }
  });
}

项目：plugin-datasource 文件：ShowMorePagerPanel.java

/**
 * Construct a new {@link ShowMorePagerPanel}.
 */
public ShowMorePagerPanel() {
    initWidget(scrollable);

    // Do not let the scrollable take tab focus.
    scrollable.getElement().setTabIndex(-1);

    // Handle scroll events.
    scrollable.addScrollHandler(new ScrollHandler() {
        public void onScroll(ScrollEvent event) {
            // If scrolling up, ignore the event.
            int oldScrollPos = lastScrollPos;
            lastScrollPos = scrollable.getVerticalScrollPosition();
            if (oldScrollPos >= lastScrollPos) {
                return;
            }

            HasRows display = getDisplay();
            if (display == null) {
                return;
            }
            int maxScrollTop = scrollable.getWidget().getOffsetHeight()
                               - scrollable.getOffsetHeight();
            if (lastScrollPos >= maxScrollTop) {
                // We are near the end, so increase the page size.
                int newPageSize = Math.min(
                                           display.getVisibleRange().getLength() + incrementSize,
                                           display.getRowCount());
                display.setVisibleRange(0, newPageSize);
            }
        }
    });
}

项目：firefly 文件：PlotWidgetGroup.java

public void onScroll(ScrollEvent ev) {
    if (_enableScrollCheck) updateScrollPositions(_mpw);
}

项目：gerrit 文件：RelatedChangesTab.java

@Override
public void onScroll(ScrollEvent event) {
  render();
}

项目：djvu-html5 文件：UIHider.java

@Override
public void onScroll(ScrollEvent event) {
    showUI();
}

项目：appformer 文件：GridLienzoScrollHandler.java

void setupScrollBarSynchronization() {
    getScrollPanel().addDomHandler(onScroll(),
                                   ScrollEvent.getType());
    synchronizeScrollSize();
}

项目：gwt-gantt 文件：GanttChart.java

@Override
public HandlerRegistration addScrollHandler(ScrollHandler handler) {
    return super.getWidget().addHandler(handler, ScrollEvent.getType());
}

项目：iambookmaster 文件：IPhoneScrollPanel.java

private void scrollTo(int postion) {
    setScrollPosition(postion);
    ScrollEvent event = new IPhoneScrollEvent();
    fireEvent(event);
}

项目：iambookmaster 文件：IPhoneScrollPanel.java

protected void scrollHorizontalTo(int postion) {
    setHorizontalScrollPosition(postion);
    ScrollEvent event = new IPhoneScrollEvent();
    fireEvent(event);
}