Example usage for com.vaadin.event.dd.acceptcriteria ServerSideCriterion ServerSideCriterion

Introduction

In this page you can find the example usage for com.vaadin.event.dd.acceptcriteria ServerSideCriterion ServerSideCriterion.

Prototype

ServerSideCriterion

Source Link

Usage

From source file:info.magnolia.ui.admincentral.shellapp.favorites.EntryDragAndDropWrapper.java

License:Open Source License

@Override
protected void init() {
    setDragStartMode(DragStartMode.WRAPPER);
    setSizeUndefined();/*from   w ww .  ja va 2s  .com*/

    setDropHandler(new DropHandler() {

        @Override
        public void drop(DragAndDropEvent event) {
            String sourcePath = ((FavoritesEntry) ((EntryDragAndDropWrapper) event.getTransferable()
                    .getSourceComponent()).getWrappedComponent()).getRelPath();
            WrapperTransferable transferable = (WrapperTransferable) event.getTransferable();
            WrapperTargetDetails details = (WrapperTargetDetails) event.getTargetDetails();
            String verticalDropLocation = (String) details.getData("verticalLocation");
            boolean isDragDown = (details.getMouseEvent().getClientY()
                    - transferable.getMouseDownEvent().getClientY()) > 0;

            if (isDragDown && (verticalDropLocation.equals(VerticalDropLocation.BOTTOM.name())
                    || verticalDropLocation.equals(VerticalDropLocation.MIDDLE.name()))) {
                getListener().orderFavoriteAfter(sourcePath,
                        ((FavoritesEntry) getWrappedComponent()).getNodename());
            } else if (!isDragDown && (verticalDropLocation.equals(VerticalDropLocation.TOP.name())
                    || verticalDropLocation.equals(VerticalDropLocation.MIDDLE.name()))) {
                getListener().orderFavoriteBefore(sourcePath,
                        ((FavoritesEntry) getWrappedComponent()).getNodename());
            }
        }

        @Override
        public AcceptCriterion getAcceptCriterion() {
            return new ServerSideCriterion() {

                @Override
                public boolean accept(DragAndDropEvent dragEvent) {
                    // accept only entries, not groups
                    AbstractFavoritesDragAndDropWrapper wrapper = (AbstractFavoritesDragAndDropWrapper) dragEvent
                            .getTransferable().getSourceComponent();
                    if (!(wrapper.getWrappedComponent() instanceof FavoritesEntry)) {
                        return false;
                    }

                    // and only in the same group
                    String sourceGroup = ((FavoritesEntry) ((EntryDragAndDropWrapper) dragEvent
                            .getTransferable().getSourceComponent()).getWrappedComponent()).getGroup();
                    if (sourceGroup == null) {
                        return ((FavoritesEntry) getWrappedComponent()).getGroup() == null;
                    }
                    return sourceGroup.equals(((FavoritesEntry) getWrappedComponent()).getGroup());
                }
            };
        }
    });

}

---

From source file:info.magnolia.ui.admincentral.shellapp.favorites.FavoritesViewImpl.java

License:Open Source License

@Override
public void init(AbstractJcrNodeAdapter favorites, JcrNewNodeAdapter favoriteSuggestion,
        JcrNewNodeAdapter groupSuggestion, Map<String, String> availableGroups, boolean itemIconsVisible) {

    editableFavoriteItemList = new ArrayList<EditableFavoriteItem>();
    final Map<String, AbstractJcrNodeAdapter> nodeAdapters = favorites.getChildren();

    if (nodeAdapters.isEmpty()) {
        emptyPlaceHolder.setVisible(true);
        splitPanel.setVisible(false);// w  ww . ja va2  s  . com
        layout.setExpandRatio(splitPanel, 0);
        layout.setExpandRatio(emptyPlaceHolder, 1);
    } else {
        emptyPlaceHolder.setVisible(false);
        splitPanel.setVisible(true);
        layout.setExpandRatio(splitPanel, 1);
        layout.setExpandRatio(emptyPlaceHolder, 0);

        noGroup = new FavoritesGroup(i18n);
        splitPanel.getLeftContainer().removeAllComponents();
        splitPanel.getRightContainer().removeAllComponents();
        for (String key : nodeAdapters.keySet()) {
            final AbstractJcrNodeAdapter favoriteAdapter = nodeAdapters.get(key);
            if (AdmincentralNodeTypes.Favorite.NAME.equals(favoriteAdapter.getPrimaryNodeTypeName())) {
                final FavoritesEntry favEntry = new FavoritesEntry(favoriteAdapter, listener, shell, i18n);
                final EntryDragAndDropWrapper wrapper = new EntryDragAndDropWrapper(favEntry, listener);
                favEntry.addEditingListener(new EditingEvent.EditingListener() {
                    @Override
                    public void onEdit(EditingEvent event) {
                        if (event.isEditing()) {
                            wrapper.setDragStartMode(DragAndDropWrapper.DragStartMode.NONE);
                        } else {
                            wrapper.setDragStartMode(DragAndDropWrapper.DragStartMode.WRAPPER);
                        }
                    }
                });
                editableFavoriteItemList.add(favEntry);
                noGroup.addComponent(wrapper);
            } else {
                final FavoritesGroup group = new FavoritesGroup(favoriteAdapter, listener, shell, this, i18n,
                        editableFavoriteItemList);
                editableFavoriteItemList.add(group);
                group.addEditingListener(new EditingEvent.EditingListener() {
                    @Override
                    public void onEdit(EditingEvent event) {
                        if (event.isEditing()) {
                            group.getDragAndDropWrapper()
                                    .setDragStartMode(DragAndDropWrapper.DragStartMode.NONE);
                        } else {
                            group.getDragAndDropWrapper()
                                    .setDragStartMode(DragAndDropWrapper.DragStartMode.WRAPPER);
                        }
                    }
                });
                splitPanel.getRightContainer().addComponent(group);
            }
        }
        DragAndDropWrapper nogroupWrap = new DragAndDropWrapper(noGroup);
        noGroup.setSizeFull();
        nogroupWrap.setSizeFull();

        nogroupWrap.setDropHandler(new DropHandler() {

            @Override
            public void drop(DragAndDropEvent event) {
                Component wrappedComponent = ((EntryDragAndDropWrapper) event.getTransferable()
                        .getSourceComponent()).getWrappedComponent();
                String sourcePath = ((FavoritesEntry) wrappedComponent).getRelPath();
                listener.moveFavorite(sourcePath, null);
            }

            @Override
            public AcceptCriterion getAcceptCriterion() {

                return new ServerSideCriterion() {

                    @Override
                    public boolean accept(DragAndDropEvent dragEvent) {
                        // accept only entries, not groups
                        AbstractFavoritesDragAndDropWrapper wrapper = (AbstractFavoritesDragAndDropWrapper) dragEvent
                                .getTransferable().getSourceComponent();
                        if (!(wrapper.getWrappedComponent() instanceof FavoritesEntry)) {
                            return false;
                        }
                        // drop location: can drop anywhere in the target zone.
                        return true;
                    }
                };
            }

        });
        splitPanel.getLeftContainer().addComponent(nogroupWrap);
    }

    if (favoriteForm == null) {
        favoriteForm = new FavoritesForm(listener, shell, i18n);
        layout.addComponent(favoriteForm);
    }
    setFavoriteLocation(favoriteSuggestion, groupSuggestion, availableGroups);
    favoriteForm.setEditActionEnabled(listener.hasItems());

    for (EditableFavoriteItem item : getEditableFavoriteItemList()) {
        item.setIconsVisibility(itemIconsVisible);
    }

}

---

From source file:info.magnolia.ui.workbench.tree.drop.TreeViewDropHandler.java

License:Open Source License

/**
 * Create a serverSide {@link AcceptCriterion} based on the {@link DropConstraint} implementation.
 *//* w  ww. j  a va 2s . co  m*/
private void createAcceptCriterion() {
    serverSideCriterion = new ServerSideCriterion() {

        @Override
        public boolean accept(DragAndDropEvent dragEvent) {
            boolean res = true;
            Iterator<Object> selected = getItemIdsToMove(dragEvent).iterator();
            while (selected.hasNext()) {
                Object sourceItemId = selected.next();
                HierarchicalJcrContainer container = (HierarchicalJcrContainer) tree.getContainerDataSource();
                JcrItemAdapter sourceItem = (JcrItemAdapter) container.getItem(sourceItemId);
                res &= constraint.allowedToMove(sourceItem);
            }
            return res;
        }
    };

}

---