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/*
* Copyright 2000-2013 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 com.intellij.codeInspection.i18n.folding;
import com.intellij.codeInsight.folding.impl.EditorFoldingInfo;
import com.intellij.codeInsight.navigation.actions.GotoDeclarationHandlerBase;
import com.intellij.lang.ASTNode;
import com.intellij.lang.folding.CompositeFoldingBuilder;
import com.intellij.lang.folding.FoldingBuilder;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.FoldRegion;
import com.intellij.openapi.util.Key;
import com.intellij.psi.*;
import org.jetbrains.annotations.Nullable;
/**
* @author Konstantin Bulenkov
*/
public class I18nMessageGotoDeclarationHandler extends GotoDeclarationHandlerBase {
private static final Key<FoldingBuilder> KEY = CompositeFoldingBuilder.FOLDING_BUILDER;
@Override
public PsiElement getGotoDeclarationTarget(@Nullable PsiElement element, Editor editor) {
if (!(element instanceof PsiJavaToken)) return null;
int i = 4; //some street magic
while (element != null && i > 0) {
final ASTNode node = element.getNode();
if (node != null && node.getUserData(KEY) instanceof PropertyFoldingBuilder) {
break;
}
else {
i--;
element = element.getParent();
}
}
//case: "literalAnnotatedWithPropertyKey"
if (element instanceof PsiLiteralExpression) {
return resolve(element);
}
//case: MyBundle.message("literalAnnotatedWithPropertyKey", param1, param2)
if (element instanceof PsiMethodCallExpression) {
final PsiMethodCallExpression methodCall = (PsiMethodCallExpression)element;
FoldRegion foldRegion = null;
for (FoldRegion region : editor.getFoldingModel().getAllFoldRegions()) {
final PsiElement psiElement = EditorFoldingInfo.get(editor).getPsiElement(region);
if (methodCall.equals(psiElement)) {
foldRegion = region;
}
}
if (foldRegion == null || foldRegion.isExpanded()) return null;
for (PsiExpression expression : methodCall.getArgumentList().getExpressions()) {
if (expression instanceof PsiLiteralExpression && PropertyFoldingBuilder.isI18nProperty(expression.getProject(), (PsiLiteralExpression)expression)) {
return resolve(expression);
}
}
}
return null;
}
@Nullable
private static PsiElement resolve(PsiElement element) {
if (element == null) return null;
final PsiReference[] references = element.getReferences();
return references.length == 0 ? null : references[0].resolve();
}
}
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