/*
* Copyright 2012-2014 Sergey Ignatov
*
* 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.intellij.erlang.intention;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.PsiFile;
import com.intellij.util.IncorrectOperationException;
import org.intellij.erlang.psi.ErlangFile;
import org.intellij.erlang.psi.ErlangFunction;
import org.intellij.erlang.psi.impl.ErlangPsiImplUtil;
import org.intellij.erlang.quickfixes.ErlangGenerateSpecFix;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
public class ErlangGenerateSpecIntention extends ErlangBaseNamedElementIntention {
public ErlangGenerateSpecIntention() {
super(ErlangGenerateSpecFix.NAME, ErlangGenerateSpecFix.NAME);
}
@Override
public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
if (!(file instanceof ErlangFile)) return false;
ErlangFunction function = findFunction(file, editor.getCaretModel().getOffset());
if (function == null) return false;
return ErlangPsiImplUtil.getSpecification(function) == null;
}
@Override
public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException {
if (!(file instanceof ErlangFile)) {
throw new IncorrectOperationException("Only applicable to Erlang files.");
}
ErlangFunction function = findFunction(file, editor.getCaretModel().getOffset());
if (function == null) {
throw new IncorrectOperationException("Cursor should be placed on Erlang function.");
}
if (ErlangPsiImplUtil.getSpecification(function) != null) {
throw new IncorrectOperationException("Specification for this function already exists.");
}
ErlangGenerateSpecFix.generateSpec(editor, function);
}
@Nullable
private static ErlangFunction findFunction(PsiFile file, int offset) {
return findElement(file, offset, ErlangFunction.class);
}
}