/*
* Copyright 2003-2016 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.lang.editor.menus.transformation;
import jetbrains.mps.nodeEditor.LanguageRegistryHelper;
import jetbrains.mps.openapi.editor.descriptor.EditorAspectDescriptor;
import jetbrains.mps.openapi.editor.descriptor.TransformationMenu;
import jetbrains.mps.openapi.editor.menus.transformation.TransformationMenuLookup;
import jetbrains.mps.smodel.language.LanguageRegistry;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.mps.openapi.language.SAbstractConcept;
import org.jetbrains.mps.openapi.language.SLanguage;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
public class DefaultTransformationMenuLookup implements TransformationMenuLookup {
@NotNull
private final LanguageRegistry myLanguageRegistry;
@NotNull
private final SAbstractConcept myConcept;
public DefaultTransformationMenuLookup(@NotNull LanguageRegistry languageRegistry, @NotNull SAbstractConcept concept) {
myLanguageRegistry = languageRegistry;
myConcept = concept;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
DefaultTransformationMenuLookup that = (DefaultTransformationMenuLookup) o;
return myLanguageRegistry.equals(that.myLanguageRegistry) && myConcept.equals(that.myConcept);
}
@Override
public int hashCode() {
return myConcept.hashCode();
}
@Override
public String toString() {
return "default transformation menu for " + myConcept;
}
@NotNull
@Override
public Collection<TransformationMenu> lookup(@NotNull Collection<SLanguage> usedLanguages, @NotNull String menuLocation) {
List<TransformationMenu> menus = new ArrayList<>(getForConcept(usedLanguages));
boolean haveApplicableExplicitMenu = menus.stream().anyMatch(menu -> menu.isApplicableToLocation(menuLocation) && !menu.isContribution());
// TODO: when can it happen that usedLanguages does not contain myConcept.getLanguage()? Explain.
if (usedLanguages.contains(myConcept.getLanguage()) && !haveApplicableExplicitMenu) {
menus.add(0, new ImplicitTransformationMenu(myConcept));
}
return menus;
}
@NotNull
private Collection<TransformationMenu> getForConcept(Collection<SLanguage> usedLanguages) {
EditorAspectDescriptor aspectDescriptor = LanguageRegistryHelper.getEditorAspectDescriptor(myLanguageRegistry, myConcept.getLanguage());
if (aspectDescriptor == null) {
return Collections.emptyList();
}
return aspectDescriptor.getDefaultTransformationMenus(myConcept, usedLanguages);
}
}