# Clipboard Support

###### Identifier:

org.eclipse.gmf.runtime.emf.clipboard.core.clipboardSupport

###### Since:

7.0

###### Description:

Providers of EMF meta-models can implement extensions on this point to provide support for copying EMF objects to and pasting them from the system clipboard. The clipboard support allows extensions to implement fairly complex metamodel-specific semantics for copy/paste operations, where some relationships between model elements need special treatment.

###### Configuration Markup:

<!ELEMENT extension (factory+)>

<!ATTLIST extension

point CDATA #REQUIRED

id CDATA #IMPLIED

name CDATA #IMPLIED

>

<!ELEMENT factory EMPTY>

<!ATTLIST factory

nsURI CDATA #REQUIRED

class CDATA #REQUIRED

priority (lowest|low|medium|high|highest) "medium"

>

Registers an implementation of the `IClipboardSupportFactory` interface that can create objects that provide metamodel-specific copy/paste semantics for EMF objects.

- nsURI - Namespace URI identifying the EPackage for which the extension provides an `IClipboardSupportFactory` implementation. The EPackage represents an EMF metamodel.
- class - Fully-qualified name of a class implementing the `IClipboardSupportFactory` interface. This class will only be loaded and instantiated when needed to copy an EMF object to the clipboard or when pasting from the clipboard.
- priority - Indicates the priority relative to other factories registered for the same metamodel. The default is medium. This attribute is deprecated; a new context-based approach will be devised soon.

###### Examples:

To register a clipboard support factory for the EMF Library example model:

       <extension
             point="org.eclipse.gmf.runtime.emf.clipboard.core.clipboardSupport">
          <factory
                nsURI="http:///org/eclipse/emf/examples/library.ecore"
                class="com.example.emf.library.clipboard.LibraryClipboardSupportFactory">
          </factory>
       </extension>

Copyright (c) 2005 IBM Corporation and others.
All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html