Java 类com.vaadin.ui.DragAndDropWrapper.DragStartMode 实例源码

private DragAndDropWrapper createDragAndDropWrapper(final Button tagButton, final String name, final Long id) {
    final DragAndDropWrapper bsmBtnWrapper = new DragAndDropWrapper(tagButton);
    bsmBtnWrapper.addStyleName(ValoTheme.DRAG_AND_DROP_WRAPPER_NO_VERTICAL_DRAG_HINTS);
    bsmBtnWrapper.addStyleName(ValoTheme.DRAG_AND_DROP_WRAPPER_NO_HORIZONTAL_DRAG_HINTS);
    bsmBtnWrapper.addStyleName(SPUIStyleDefinitions.FILTER_BUTTON_WRAPPER);
    if (getButtonWrapperData() != null) {
        if (id == null) {
            bsmBtnWrapper.setData(getButtonWrapperData());
        } else {
            bsmBtnWrapper.setData(getButtonWrapperData().concat("" + id));
        }
    }
    bsmBtnWrapper.setId(getButttonWrapperIdPrefix().concat(name));
    bsmBtnWrapper.setDragStartMode(DragStartMode.WRAPPER);
    bsmBtnWrapper.setDropHandler(getFilterButtonDropHandler());
    return bsmBtnWrapper;
}

protected void addItemToFlowPanelSection(String labelName, String componentType, VerticalLayout componentLayout, StreamResource icon,
        String componentId) {

    FlowPaletteItem paletteItem = new FlowPaletteItem(labelName);
    if (componentId != null) {
        paletteItem.setShared(true);
        paletteItem.setComponentId(componentId);
    } else {
        paletteItem.setComponentType(componentType);
        paletteItem.setShared(false);
    }
    paletteItem.setIcon(icon);
    paletteItem.addStyleName(ValoTheme.BUTTON_ICON_ALIGN_TOP);
    paletteItem.addStyleName(ValoTheme.BUTTON_BORDERLESS_COLORED);
    paletteItem.addStyleName("leftAligned");
    paletteItem.setWidth(100, Unit.PERCENTAGE);
    DragAndDropWrapper wrapper = new DragAndDropWrapper(paletteItem);
    wrapper.setSizeUndefined();
    wrapper.setDragStartMode(DragStartMode.WRAPPER);
    componentLayout.addComponent(wrapper);
    componentLayout.setComponentAlignment(wrapper, Alignment.TOP_CENTER);

}

private Component buildPaletteItem(final PaletteItemType type) {
    Label caption = new Label(type.getIcon().getHtml() + type.getTitle(),
            ContentMode.HTML);
    caption.setSizeUndefined();

    DragAndDropWrapper ddWrap = new DragAndDropWrapper(caption);
    ddWrap.setSizeUndefined();
    ddWrap.setDragStartMode(DragStartMode.WRAPPER);
    ddWrap.setData(type);
    return ddWrap;
}

private Component buildPaletteItem(final PaletteItemType type) {
    Label caption = new Label(type.getIcon().getHtml() + type.getTitle(),
            ContentMode.HTML);
    caption.setSizeUndefined();

    DragAndDropWrapper ddWrap = new DragAndDropWrapper(caption);
    ddWrap.setSizeUndefined();
    ddWrap.setDragStartMode(DragStartMode.WRAPPER);
    ddWrap.setData(type);
    return ddWrap;
}

public WrappedComponent(final Component content) {
    super(content);
    setDragStartMode(DragStartMode.WRAPPER);
}

public WrappedComponent(final Component content) {
    super(content);
    setDragStartMode(DragStartMode.WRAPPER);
}

private Component buildMenuItems() {
    CssLayout menuItemsLayout = new CssLayout();
    menuItemsLayout.addStyleName("valo-menuitems");

    for (final DashboardViewType view : DashboardViewType.values()) {
        Component menuItemComponent = new ValoMenuItemButton(view);

        if (view == DashboardViewType.REPORTS) {
            // Add drop target to reports button
            DragAndDropWrapper reports = new DragAndDropWrapper(
                    menuItemComponent);
            reports.setSizeUndefined();
            reports.setDragStartMode(DragStartMode.NONE);
            reports.setDropHandler(new DropHandler() {

                @Override
                public void drop(final DragAndDropEvent event) {
                    UI.getCurrent()
                            .getNavigator()
                            .navigateTo(
                                    DashboardViewType.REPORTS.getViewName());
                    Table table = (Table) event.getTransferable()
                            .getSourceComponent();
                    DashboardEventBus.post(new TransactionReportEvent(
                            (Collection<Transaction>) table.getValue()));
                }

                @Override
                public AcceptCriterion getAcceptCriterion() {
                    return AcceptItem.ALL;
                }

            });
            menuItemComponent = reports;
        }

        if (view == DashboardViewType.DASHBOARD) {
            notificationsBadge = new Label();
            notificationsBadge.setId(NOTIFICATIONS_BADGE_ID);
            menuItemComponent = buildBadgeWrapper(menuItemComponent,
                    notificationsBadge);
        }
        if (view == DashboardViewType.REPORTS) {
            reportsBadge = new Label();
            reportsBadge.setId(REPORTS_BADGE_ID);
            menuItemComponent = buildBadgeWrapper(menuItemComponent,
                    reportsBadge);
        }

        menuItemsLayout.addComponent(menuItemComponent);
    }
    return menuItemsLayout;

}