/*
* Copyright (c) 2014 Patrick Scheibe
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package de.halirutan.mathematica.codeinsight.findusage;
import com.intellij.find.findUsages.FindUsagesHandler;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiReference;
import com.intellij.psi.search.SearchScope;
import com.intellij.psi.util.PsiTreeUtil;
import de.halirutan.mathematica.parsing.psi.api.Symbol;
import org.jetbrains.annotations.NotNull;
import java.util.Collection;
import java.util.HashSet;
/**
* @author patrick (7/7/14)
*/
public class MathematicaFindUsageHandler extends FindUsagesHandler {
protected MathematicaFindUsageHandler(@NotNull final PsiElement psiElement) {
super(psiElement);
}
@Override
public Collection<PsiReference> findReferencesToHighlight(@NotNull final PsiElement target, @NotNull final SearchScope searchScope) {
final Collection<PsiReference> usages = new HashSet<PsiReference>();
if (target instanceof Symbol) {
// usages.add(element);
final PsiReference ref = target.getReference();
if (ref != null) {
usages.add(ref);
final PsiElement resolve = ref.resolve();
if (resolve != null && resolve instanceof Symbol) {
final Collection<Symbol> symbolsInFile = PsiTreeUtil.findChildrenOfType(target.getContainingFile(), Symbol.class);
for (Symbol symbol : symbolsInFile) {
final PsiReference reference = symbol.getReference();
if (reference != null) {
final PsiElement resolve1 = reference.resolve();
if (resolve1 != null && !symbol.equals(resolve1) && resolve.equals(resolve1)) {
usages.add(reference);
}
}
}
}
}
}
//endregion
return usages;
}
}