Examples of com.extjs.gxt.ui.client.dnd.DropTarget

com.extjs.gxt.ui.client.dnd.DropTarget
Identifies components that can receive data from a drag and drop operations.
While the cursor is over a target, the target is responsible for determining if the drop is valid and showing any visual indicators for the drop. The {@link StatusProxy} object should be used to specify if the drop is valid,and can also be used to change the values of the proxy object displayed by the cursor. The status proxy is accessible via the DNDEvent.
Events:
DragEnter : DNDEvent(target, source, component, event, dragEvent, status)

Fires after the cursor enters the target's boundaries.
- target : this
- source : the drag source
- component : the source component
- event : the dom event
- dragEvent : the drag event (draggable)
- status : the status object
DragLeave : DNDEvent(target, source, component, event, dragEvent, status)

Fires after the cursor leaves the target's boundaries.
- target : this
- source : the drag source
- component : the source component
- event : the dom event
- dragEvent : the drag event (draggable)
- status : the status object
DragCancel : DNDEvent(target, source, component, event, dragEvent, status)

Fires after the user when a drag operation is cancelled.
- target : this
- source : the drag source
- component : the source component
- event : the dom event
- dragEvent : the drag event (draggable)
- status : the status object
DragMove : DNDEvent(target, source, component, event, dragEvent, status)

Fires after the user begins a drag and drop operation.
- target : this
- source : the drag source
- component : the source component
- event : the dom event
- dragEvent : the drag event (draggable)
- status : the status object
DragDrop : DNDEvent(target, source, data, component, event, dragEvent, status)

Fires after the user drops data over the target.
- target : this
- source : the drag source
- data : the data being dragged
- component : the source component
- event : the dom event
- dragEvent : the drag event (draggable)
- status : the status object

    final LayoutContainer container = new LayoutContainer();
    container.setLayoutOnChange(true);
    container.setBorders(true);
    container.setSize(200, 200);


    DropTarget target = new DropTarget(container) {
      @Override
      protected void onDragDrop(DNDEvent event) {
        super.onDragDrop(event);
        Html html = event.getData();
        container.add(html);
      }
    };
    target.setGroup("test");
    target.setOverStyle("drag-ok");


    final LayoutContainer sourceContainer = new LayoutContainer();
    sourceContainer.setLayoutOnChange(true);
    sourceContainer.setWidth(100);

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        }
    }


    @Override public void onNodeTypesLoaded() {
        if (childCount == 0 && !missingList) {
            DropTarget target = new ModuleDropTarget(this, node == null ? EditModeDNDListener.EMPTYAREA_TYPE : EditModeDNDListener.PLACEHOLDER_TYPE);
            target.setOperation(DND.Operation.COPY);
            target.setFeedback(DND.Feedback.INSERT);
            target.addDNDListener(mainModule.getEditLinker().getDndListener());


            if (getNodeTypes() != null) {
                String[] nodeTypesArray = getNodeTypes().split(" ");
                for (final String s : nodeTypesArray) {
                    Button button = new Button(ModuleHelper.getNodeType(s) != null ? ModuleHelper.getNodeType(

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        Log.debug("Add drag source for simple module " + path);


        if (hasDragDrop) {
            DragSource source = new SimpleModuleDragSource(this);
            source.addDNDListener(mainModule.getEditLinker().getDndListener());
            DropTarget target = new ModuleDropTarget(this, EditModeDNDListener.SIMPLEMODULE_TYPE);
            target.setAllowSelfAsSource(true);
            target.addDNDListener(mainModule.getEditLinker().getDndListener());
        } else {
            new DropTarget(this) {
                @Override
                protected void onDragEnter(DNDEvent event) {
                    event.getStatus().setStatus(false);
                }
            };

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    @Override
    public void onParsed() {
    }


    public void onNodeTypesLoaded() {
        DropTarget target = new ModuleDropTarget(this, EditModeDNDListener.PLACEHOLDER_TYPE);
        target.setOperation(DND.Operation.COPY);
        target.setFeedback(DND.Feedback.INSERT);


        target.addDNDListener(mainModule.getEditLinker().getDndListener());


        if (getParentModule().getChildCount() >= getParentModule().getListLimit() && getParentModule().getListLimit() != -1) {
            return;
        }

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