Examples of DropHandler

com.google.gwt.event.dom.client.DropHandler
com.smartgwt.client.widgets.events.DropHandler
com.sun.jna.platform.dnd.DropHandler
Provides simplified drop handling for a component. Usage:
```
 int actions = DnDConstants.MOVE_OR_COPY; Component component = ...; DropHandler handler = new DropHandler(component, actions); 
```
- Accept drops where the action is the default (i.e. no modifiers) but the intersection of source and target actions is not the default. Doing so allows the source to adjust the cursor appropriately.
- Refuse drops where the user modifiers request an action that is not supported (this works for all cases except when the drag source is not a {@link DragHandler} and the user explicitly requests a MOVE operation;this is indistinguishable from a drag with no modifiers unless we have access to the key modifiers, which {@link DragHandler} provides).
- Drops may be refused based on data flavor, location, intended drop action, or any combination of those, by overriding {@link #canDrop}.
- Custom decoration of the drop area may be performed in {@link #paintDropTarget(DropTargetEvent,int,Point)} or by providinga {@link DropTargetPainter}.
The method {@link #getDropAction(DropTargetEvent)} follows these steps todetermine the appropriate action (if any).
- {@link #isSupported(DataFlavor[])} determines if there are any supported flavors
- {@link #getDropActionsForFlavors(DataFlavor[])} reduces the supported actions based on available flavors. For instance, a text field for file paths might support {@link DnDConstants#ACTION_COPY_OR_MOVE} on a plain string, but {@link DnDConstants#ACTION_LINK} might be the only action supported on a file.
- {@link #getDropAction(DropTargetEvent,int,int,int)} relax the actionif it's the default, or restrict it for user requested actions.
- {@link #canDrop(DropTargetEvent,int,Point)} change the action based on the location in the drop target component, or any other criteria.
Override {@link #drop(DropTargetDropEvent,int)} to handle the drop. You should invoke {@link DropTargetDropEvent#dropComplete} as soonas the {@link Transferable} data is obtained, to avoid making the DnDoperation look suspended. @see DragHandler @author twall
com.vaadin.event.dd.DropHandler
DropHandlers contain the actual business logic for drag and drop operations.
The {@link #drop(DragAndDropEvent)} method is used to receive the transferreddata and the {@link #getAcceptCriterion()} method contains the (possiblyclient side verifiable) criterion whether the dragged data will be handled at all. @since 6.3
org.fusesource.ide.commons.ui.drop.DropHandler

Examples of com.google.gwt.event.dom.client.DropHandler

                        // required by GWT api
                        // triggerDomEvent(addHandler, domHandlerType, uiService);
                    }
                }, DragOverEvent.getType());


                widget.addBitlessDomHandler(new DropHandler() {


                    @Override
                    public void onDrop(final DropEvent event) {
                        event.preventDefault();
                        final String dragWidgetID = event.getData("text");

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Examples of com.google.gwt.event.dom.client.DropHandler

          nameField.getElement().getStyle().clearBackgroundColor();
          notesEditor.getElement().getStyle().clearBackgroundColor();
        }
      }
    }, DragLeaveEvent.getType());
    editForm.addDomHandler(new DropHandler() {
      public void onDrop(DropEvent event) {
        // Prevent the default text drop.
        event.preventDefault();


        // Un-highlight the name and notes box.

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Examples of com.smartgwt.client.widgets.events.DropHandler

            } else {
                column.setWidth("*");
            }


            final int columnNumber = i;
            column.addDropHandler(new DropHandler() {
                public void onDrop(DropEvent dropEvent) {


                    int dropPosition = column.getDropPosition();
                    int dropColumn = columnNumber;

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Examples of com.smartgwt.client.widgets.events.DropHandler

        tree.getData().openAll();
        tree.selectRecord( 0 );
      }
    } );


    this.tree.addDropHandler( new DropHandler() {


      @Override
      public void onDrop( DropEvent event ) {


        GWT.log( event.getSource().toString() );

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Examples of com.sun.jna.platform.dnd.DropHandler

                    }
                    return null;
                }
            };
            DataFlavor[] flavors = new DataFlavor[] { DataFlavor.imageFlavor };
            new DropHandler(this, DnDConstants.ACTION_COPY_OR_MOVE, flavors) {
                protected void drop(DropTargetDropEvent e, int action) throws UnsupportedFlavorException, IOException {
                    final Image image = (Image)e.getTransferable().getTransferData(DataFlavor.imageFlavor);
                    dragging = false;
                    setIcon(new ImageIcon(image));
                }

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Examples of com.vaadin.event.dd.DropHandler

        table.setColumnCollapsingAllowed(true);
        table.setColumnReorderingAllowed(true);
        table.setPageLength(6);
        table.addActionHandler(ValoThemeUI.getActionHandler());
        table.setDragMode(TableDragMode.MULTIROW);
        table.setDropHandler(new DropHandler() {
            @Override
            public AcceptCriterion getAcceptCriterion() {
                return AcceptAll.get();
            }

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Examples of com.vaadin.event.dd.DropHandler

                public void valueChange(ValueChangeEvent event) {
                    dnd.setEnabled(enabled.booleanValue());
                }
            });


            dnd.setDropHandler(new DropHandler() {


                @Override
                public AcceptCriterion getAcceptCriterion() {
                    return AcceptAll.get();
                }


                @Override
                public void drop(DragAndDropEvent event) {
                    layout.addComponent(new Label("You dropped something!"));
                }
            });


            dnd.setDragStartMode(DragStartMode.COMPONENT);
        }


        {
            final Panel p = new Panel("Drag here");
            addComponent(p);


            final CssLayout layout = new CssLayout();
            layout.setId("csslayout-2");
            layout.setHeight("100px");


            final DragAndDropWrapper dnd = new DragAndDropWrapper(layout);
            dnd.setId("ddwrapper-2");
            p.setContent(dnd);


            final CheckBox enabled = new CheckBox("Enabled", true);
            addComponent(enabled);
            enabled.setImmediate(true);
            enabled.addListener(new ValueChangeListener() {


                @Override
                public void valueChange(ValueChangeEvent event) {
                    dnd.setEnabled(enabled.booleanValue());
                }
            });


            dnd.setDropHandler(new DropHandler() {


                @Override
                public AcceptCriterion getAcceptCriterion() {
                    return AcceptAll.get();
                }


                @Override
                public void drop(DragAndDropEvent event) {
                    layout.addComponent(new Label("You dropped something!"));
                }
            });


            dnd.setDragStartMode(DragStartMode.COMPONENT);
        }


        {
            final Table tbl = new Table();
            tbl.addContainerProperty("column", String.class,
                    "drag/drop to/from here");
            for (int i = 0; i < 5; i++) {
                tbl.addItem();
            }
            addComponent(tbl);
            tbl.setDragMode(TableDragMode.ROW);
            tbl.setDropHandler(new DropHandler() {


                @Override
                public AcceptCriterion getAcceptCriterion() {
                    return AcceptAll.get();
                }

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Examples of com.vaadin.event.dd.DropHandler

        addComponent(wrapper);


        Table target = new Table();
        target.setWidth(100, Unit.PERCENTAGE);
        addComponent(target);
        target.setDropHandler(new DropHandler() {


            @Override
            public AcceptCriterion getAcceptCriterion() {
                return AcceptAll.get();
            }

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Examples of com.vaadin.event.dd.DropHandler


    @Override
    protected void setup(VaadinRequest request) {
        final DragAndDropWrapper dndWrapper = new DragAndDropWrapper(
                new Button("Upload here by drag and dropping"));
        dndWrapper.setDropHandler(new DropHandler() {


            @Override
            public AcceptCriterion getAcceptCriterion() {
                return AcceptAll.get();
            }

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Examples of com.vaadin.event.dd.DropHandler


    public AcceptAnythingWindow() {
        setCaption("Drop anything here");


        final DragAndDropWrapper wrapper = new DragAndDropWrapper(layout);
        wrapper.setDropHandler(new DropHandler() {


            @Override
            public AcceptCriterion getAcceptCriterion() {
                return AcceptAll.get();
            }

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