/*
 * Copyright 2000-2012 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 org.jetbrains.plugins.groovy.intentions.declaration;

import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiElement;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.intentions.base.Intention;
import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate;
import org.jetbrains.plugins.groovy.lang.psi.GrNamedElement;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMember;

/**
 * @author Max Medvedev
 */
public abstract class GrChangeMemberVisibilityModifierBase extends Intention {
  private final String myModifier;

  public GrChangeMemberVisibilityModifierBase(String modifier) {
    myModifier = modifier;
  }

  @Override
  protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException {
    final PsiElement parent = element.getParent();
    if (!(parent instanceof GrMember)) return;

    ((GrMember)parent).getModifierList().setModifierProperty(myModifier, true);
  }

  @NotNull
  @Override
  protected PsiElementPredicate getElementPredicate() {
    return new PsiElementPredicate() {
      @Override
      public boolean satisfiedBy(PsiElement element) {
        final PsiElement parent = element.getParent();
        return parent instanceof GrMember &&
               parent instanceof GrNamedElement &&
               (((GrNamedElement)parent).getNameIdentifierGroovy() == element || ((GrNamedElement)parent).getModifierList() == element) &&
               !((GrMember)parent).getModifierList().hasExplicitModifier(myModifier);
      }
    };
  }
}

/*
 * Copyright 2000-2012 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 org.jetbrains.plugins.groovy.intentions.declaration;

import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiElement;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.plugins.groovy.intentions.base.Intention;
import org.jetbrains.plugins.groovy.intentions.base.PsiElementPredicate;
import org.jetbrains.plugins.groovy.lang.psi.GrNamedElement;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMember;

/**
 * @author Max Medvedev
 */
public abstract class GrChangeMemberVisibilityModifierBase extends Intention {
  private final String myModifier;

  public GrChangeMemberVisibilityModifierBase(String modifier) {
    myModifier = modifier;
  }

  @Override
  protected void processIntention(@NotNull PsiElement element, Project project, Editor editor) throws IncorrectOperationException {
    final PsiElement parent = element.getParent();
    if (!(parent instanceof GrMember)) return;

    ((GrMember)parent).getModifierList().setModifierProperty(myModifier, true);
  }

  @NotNull
  @Override
  protected PsiElementPredicate getElementPredicate() {
    return new PsiElementPredicate() {
      @Override
      public boolean satisfiedBy(PsiElement element) {
        final PsiElement parent = element.getParent();
        return parent instanceof GrMember &&
               parent instanceof GrNamedElement &&
               (((GrNamedElement)parent).getNameIdentifierGroovy() == element || ((GrNamedElement)parent).getModifierList() == element) &&
               ((GrMember)parent).getModifierList() != null && !((GrMember)parent).getModifierList().hasExplicitModifier(myModifier);
      }
    };
  }
}

fix NPE in GrChangeMemberVisibilityModifier