/*
* Copyright 2003-2011 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jetbrains.mps.smodel.action;
import jetbrains.mps.actions.runtime.impl.ActionsUtil;
import jetbrains.mps.nodeEditor.EditorManager;
import jetbrains.mps.nodeEditor.cellMenu.AbstractNodeSubstituteInfo;
import jetbrains.mps.openapi.editor.EditorContext;
import jetbrains.mps.typesystem.inference.TypeChecker;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.mps.openapi.language.SAbstractConcept;
import org.jetbrains.mps.openapi.model.SModel;
import org.jetbrains.mps.openapi.model.SNode;
public class DefaultSChildSubstituteAction extends AbstractSubstituteAction {
private SNode myCurrentChild;
private SNode myOldChild;
private IChildNodeSetter mySetter;
private SAbstractConcept myConcept;
public DefaultSChildSubstituteAction(SAbstractConcept outputConcept, SNode parentNode, SNode currentChild, IChildNodeSetter setter) {
super(parentNode);
myConcept = outputConcept;
myCurrentChild = currentChild;
myOldChild = myCurrentChild;
mySetter = setter;
}
//todo do we need this?
private void setupOldChild() {
if (myCurrentChild != null && myCurrentChild.getUserObject(EditorManager.OLD_NODE_FOR_SUBSTITUTION) != null) {
myOldChild = (SNode) myCurrentChild.getUserObject(EditorManager.OLD_NODE_FOR_SUBSTITUTION);
} else {
myOldChild = myCurrentChild;
}
}
@Override
public final SNode doSubstitute(@Nullable final EditorContext editorContext, String pattern) {
SNode parentNode = getSourceNode();
SNode newChild = createChildNode(parentNode.getModel());
if (newChild != null) {
SNode result = mySetter.execute(parentNode, myCurrentChild, newChild, editorContext);
if (result != newChild) {
// node was wrapped by mySetter
return result;
}
return selectChildNode(result, parentNode.getModel(), pattern, editorContext);
}
return null;
}
private SNode createChildNode(SModel model) {
return NodeFactoryManager.createNode(myConcept, myOldChild, getSourceNode(), model);
}
protected SNode selectChildNode(SNode createdNode, SModel model, String pattern, EditorContext editorContext) {
return createdNode;
}
@Override
public Object getParameterObject() {
return myConcept.getDeclarationNode();
}
@Override
public SNode getOutputConcept() {
return myConcept.getDeclarationNode();
}
@Override
public SNode getIconNode(String pattern) {
return getOutputConcept();
}
@Override
public SNode getActionType(String pattern) {
SNode node = createChildNode(AbstractNodeSubstituteInfo.getModelForTypechecking());
if (node == null) return null;
if (ActionsUtil.isInstanceOfIType(node)) return node;
//the following is for smart-type completion
//todo add own model for typecheck
AbstractNodeSubstituteInfo.getModelForTypechecking().addRootNode(node);
try {
return TypeChecker.getInstance().getTypeOf(node);
} finally {
AbstractNodeSubstituteInfo.getModelForTypechecking().removeRootNode(node);
}
}
@Override
public String getMatchingText(String pattern) {
String conceptAlias = myConcept.getConceptAlias();
if (conceptAlias != null && !conceptAlias.isEmpty()) {
return conceptAlias;
}
return myConcept.getName();
}
@Override
public String getDescriptionText(String pattern) {
return myConcept.getLanguage().getQualifiedName();
}
}