public void apply()

in myfaces-html5-core/src/main/java/org/apache/myfaces/html5/handler/DropTargetBehaviorHandler.java [164:270]
82 lines of code
14 McCabe index (conditional complexity)

    public void apply(FaceletContext faceletContext, UIComponent parent)
    {
        if (!ComponentHandler.isNew(parent))
        {
            if (log.isLoggable(Level.FINE))
                log.fine("Component" + DebugUtils.getPathToComponent(parent)
                        + " is not new, thus return without any operation.");
            return;
        }

        if (parent instanceof ClientBehaviorHolder)
        {
            ClientBehaviorHolder holder = _getClientBehaviorHolder(parent);

            FacesContext context = faceletContext.getFacesContext();
            Application app = context.getApplication();
            String behaviorId = getBehaviorId();
            Behavior behavior = app.createBehavior(behaviorId);

            if (!(behavior instanceof DropTargetBehavior))
            {
                throw new FacesException("Behavior is not a DropTargetBehavior");
            }

            // manually added all of the properties, so no need for this:
            // setAttributes(faceletContext, behavior);

            DropTargetBehavior dropTargetBehavior = (DropTargetBehavior) behavior;

            if (_dropListener != null)
            {

                MethodExpression expr = _dropListener.getMethodExpression(faceletContext, Void.TYPE, new Class<?>[]
                {
                    DropEvent.class
                });
                dropTargetBehavior.addDropTargetBehaviorListener(new DropListener(expr));
            }

            // see https://issues.apache.org/jira/browse/MYFACES-2616
            // see the thread http://www.mail-archive.com/dev@myfaces.apache.org/msg46764.html
            // using the same approach in DropSourceBehavior too... see there for explanation!
            if (_action != null)
            {
                if (_action.isLiteral())
                {
                    dropTargetBehavior.setAction(_action.getValue(faceletContext));
                }
                else
                {
                    dropTargetBehavior.setValueExpression("action", _action.getValueExpression(faceletContext,
                            String.class));
                }
            }
            if (_types != null)
            {
                if (_types.isLiteral())
                {
                    dropTargetBehavior.setTypes(_types.getObject(faceletContext));
                }
                else
                {
                    dropTargetBehavior.setValueExpression("types", _types.getValueExpression(faceletContext,
                            Object.class));
                }
            }
            if (_acceptMimeTypes != null)
            {
                if (_acceptMimeTypes.isLiteral())
                {
                    dropTargetBehavior.setAcceptMimeTypes(_acceptMimeTypes.getObject(faceletContext));
                }
                else
                {
                    dropTargetBehavior.setValueExpression("acceptMimeTypes", _acceptMimeTypes.getValueExpression(
                            faceletContext, Object.class));
                }
            }
            if (_rerender != null)
            {
                if (_rerender.isLiteral())
                {
                    dropTargetBehavior.setRerender(_rerender.getObject(faceletContext));
                }
                else
                {
                    dropTargetBehavior.setValueExpression("rerender", _rerender.getValueExpression(faceletContext,
                            Object.class));
                }
            }

            holder.addClientBehavior(ClientBehaviorEvents.DRAGENTER_EVENT, dropTargetBehavior);
            holder.addClientBehavior(ClientBehaviorEvents.DRAGOVER_EVENT, dropTargetBehavior);
            holder.addClientBehavior(ClientBehaviorEvents.DROP_EVENT, dropTargetBehavior);
        }
        //XXX: try in a composite component!
        /*
         * else if (UIComponent.isCompositeComponent(parent)) { // COPIED FROM AjaxHandler! // It is supposed that for
         * composite components, this tag should // add itself as a target, but note that on whole api does not exists
         * // some tag that expose client behaviors as targets for composite // components. In RI, there exists a tag
         * called composite:clientBehavior, // but does not appear on spec or javadoc, maybe because this could be //
         * understand as an implementation detail, after all there exists a key // called
         * AttachedObjectTarget.ATTACHED_OBJECT_TARGETS_KEY that could be // used to create a tag outside jsf
         * implementation to attach targets. CompositeComponentResourceTagHandler.addAttachedObjectHandler(parent,
         * this); }
         */
    }