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/*****************************************************************************
* Copyright (c) 2007-2013, 2021 Borland Software Corporation, CEA LIST, Artal and others
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Alexander Shatalin (Borland) - initial API and implementation
* Dmitry Stadnik (Borland) - creation logic was moved in commands
* Michael Golubev (Borland) - [243151] explicit source/target for links
* - #386838 - migrate to Xtend2
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
* Etienne Allogo (ARTAL) - etienne.allogo@artal.fr - Bug 569174 : 1.4 Merge papyrus extension templates into codegen.xtend
*****************************************************************************/
package xpt.diagram.editpolicies
import com.google.inject.Inject
import com.google.inject.Singleton
import org.eclipse.papyrus.gmf.codegen.gmfgen.GenDiagram
import org.eclipse.papyrus.gmf.codegen.gmfgen.GenLink
import org.eclipse.papyrus.gmf.codegen.gmfgen.GenLinkEnd
import xpt.Common
import xpt.diagram.commands.CreateLinkCommand
import xpt.diagram.commands.ReorientLinkCommand
import xpt.editor.VisualIDRegistry
import xpt.providers.ElementTypes
/**
* Start start of link creation.
* User click to this editpart and start dragging with link tool.
* Complete end of the command
* User points to this editpart as a link target and release mouse button.
*
* Outgoing the node is link source
* This element could be a source for this type of link.
* Incoming the node is link destination
* This element could be a target for this type of link.
*
* Parameters:
*
* diagram GenDiagram used to collect all defined links
*
* this Instance of GenLinkEnd for the element link could be creates to/from.
* This could be GenNode or GenLink in case of links to links,
* in the latter case it is assumed that its a TypeLink (so its model facet is LinkTypeModelFacet),
* because RefLinks don't have underlying semantic identity
*
*/
@Singleton class linkCommands {
@Inject extension Utils_qvto;
@Inject extension Common;
@Inject ElementTypes xptElementTypes;
@Inject ReorientLinkCommand xptReorientLinkCommand;
@Inject VisualIDRegistry xptVisualIDRegistry;
@Inject CreateLinkCommand xptCreateLinkCommand;
def linkCommands(GenLinkEnd it) '''
«IF getAllPotentialLinks(it).size > 0»
«createLinkCommands(it)»
«ENDIF»
«IF getReroutableTypeLinks(it).size > 0»
«reorientTypeLinkCommands(it)»
«ENDIF»
«IF getReroutableRefLinks(it).size > 0»
«reorientRefLinkCommands(it)»
«ENDIF»
'''
def createLinkCommands(GenLinkEnd it) '''
«IF it.eResource.allContents.filter(typeof (GenDiagram)).filter[genDiagram | genDiagram.usingElementTypeCreationCommand].size<1»
«generatedMemberComment()»
protected org.eclipse.gef.commands.Command getCreateRelationshipCommand(
org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest req) {
org.eclipse.gef.commands.Command command = req.getTarget() == null ?
getStartCreateRelationshipCommand(req) : getCompleteCreateRelationshipCommand(req);
return command != null ? command : super.getCreateRelationshipCommand(req);
}
«ENDIF»
«generatedMemberComment()»
protected org.eclipse.gef.commands.Command getStartCreateRelationshipCommand(
org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest req) {
org.eclipse.gmf.runtime.emf.type.core.IElementType requestElementType = req.getElementType();
if(requestElementType == null) {
return null;
}
org.eclipse.gmf.runtime.emf.type.core.IElementType baseElementType = requestElementType;
«FOR l : getAllPotentialLinks(it)»
«startLinkCommands(l, it)»
«ENDFOR»
return null;
}
«generatedMemberComment()»
protected org.eclipse.gef.commands.Command getCompleteCreateRelationshipCommand(
org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest req) {
org.eclipse.gmf.runtime.emf.type.core.IElementType requestElementType = req.getElementType();
if(requestElementType == null) {
return null;
}
org.eclipse.gmf.runtime.emf.type.core.IElementType baseElementType = requestElementType;
«FOR l : getAllPotentialLinks(it)»
«completeLinkCommands(l, it)»
«ENDFOR»
return null;
}
'''
def startLinkCommands(GenLink it, GenLinkEnd linkEnd) '''
if («xptElementTypes.accessElementType(it)» == baseElementType) {
«IF createStartLinkCommand(it, linkEnd)»
return getGEFWrapper(new «xptCreateLinkCommand.qualifiedClassName(it)»(req,
«IF createStartIncomingLinkCommand(it, linkEnd)»
req.getTarget(), req.getSource()
«ELSE»
req.getSource(), req.getTarget()
«ENDIF»
));
«ELSE»
return null;
«ENDIF»
'''
def completeLinkCommands(GenLink it, GenLinkEnd linkEnd) '''
if («xptElementTypes.accessElementType(it)» == baseElementType) {
«IF createCompleteLinkCommand(it, linkEnd)»
return getGEFWrapper(new «xptCreateLinkCommand.qualifiedClassName(it)»(req,
«IF createCompleteOutgoingLinkCommand(it, linkEnd)»
req.getTarget(), req.getSource()
«ELSE»
req.getSource(), req.getTarget()
«ENDIF»
));
«ELSE»
return null;
«ENDIF»
'''
def reorientTypeLinkCommands(GenLinkEnd it) '''
«generatedMemberComment(
'Returns command to reorient EClass based link. New link target or source\n' + 'should be the domain model element associated with this node.\n'
)»
protected org.eclipse.gef.commands.Command getReorientRelationshipCommand(
org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest req) {
String vid = getVisualID(req);
if (vid != null) {
switch (vid) {
«FOR link : getReroutableTypeLinks(it)»
«reorientLinkCommandWithService(link) »
«ENDFOR»
«callReorientCommand(it)»
«FOR link : getReroutableTypeLinks(it)»
«reorientLinkCommandWithoutService(link) »
«ENDFOR»
}
}
return super.getReorientRelationshipCommand(req);
}
'''
def reorientRefLinkCommands(GenLinkEnd it) '''
«generatedMemberComment(
'Returns command to reorient EReference based link. New link target or source\n' +
'should be the domain model element associated with this node.\n'
)»
protected org.eclipse.gef.commands.Command getReorientReferenceRelationshipCommand(
org.eclipse.gmf.runtime.emf.type.core.requests.ReorientReferenceRelationshipRequest req) {
switch (getVisualID(req)) {
«FOR l : getReroutableRefLinks(it)»
«reorientLinkCommand(l)»
«ENDFOR»
}
return super.getReorientReferenceRelationshipCommand(req);
}
'''
def reorientLinkCommand(GenLink it) '''
«xptVisualIDRegistry.caseVisualID(it)»
return getGEFWrapper(new «xptReorientLinkCommand.qualifiedClassName(it)»(req));
'''
//This function writes only : "case myLinkEditPart.VISUAL_ID:"
//for the link which uses the ReorientCommand provided by the EditService
def reorientLinkCommandWithService(GenLink it) '''
«IF usingReorientService»
«xptVisualIDRegistry.caseVisualID(it)»
«ENDIF»
'''
// This function writes the code to call the ReorientCommand provided by the ReorientService
def callReorientCommand(GenLinkEnd it) '''
«var views = getReroutableTypeLinks(it)»
«IF views !== null && !views.empty»
«IF !views.filter[view| view.usingReorientService].empty»
org.eclipse.papyrus.infra.services.edit.service.IElementEditService provider =org.eclipse.papyrus.infra.services.edit.service.ElementEditServiceUtils.getCommandProvider(req.getRelationship());
if(provider == null) {
return org.eclipse.gef.commands.UnexecutableCommand.INSTANCE;
}
// Retrieve re-orient command from the Element Edit service
org.eclipse.gmf.runtime.common.core.command.ICommand reorientCommand = provider.getEditCommand(req);
if(reorientCommand == null) {
return org.eclipse.gef.commands.UnexecutableCommand.INSTANCE;
}
return getGEFWrapper(reorientCommand.reduce());
«ENDIF»
«ENDIF»
'''
// This function writes the code for the Links which uses their own ReorientCommand (the initial code)
def reorientLinkCommandWithoutService(GenLink it) '''
«IF !usingReorientService»
«reorientLinkCommand(it)»
«ENDIF»
'''
}
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