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A packaging of the IntelliJ Community Edition ui-designer library. This is release number 1 of trunk branch 142.

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/*
 * Copyright 2000-2014 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.uiDesigner.binding;

import com.intellij.navigation.GotoRelatedItem;
import com.intellij.navigation.GotoRelatedProvider;
import com.intellij.openapi.project.Project;
import com.intellij.psi.JavaPsiFacade;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.uiDesigner.GuiFormFileType;
import com.intellij.uiDesigner.compiler.Utils;
import org.jetbrains.annotations.NotNull;

import java.util.Collections;
import java.util.List;

/**
 * @author Dmitry Avdeev
 */
public class FormRelatedFilesProvider extends GotoRelatedProvider {

  @NotNull
  @Override
  public List getItems(@NotNull PsiElement context) {
    PsiClass psiClass = PsiTreeUtil.getParentOfType(context, PsiClass.class, false);
    if (psiClass != null) {
      while (psiClass != null) {
        List forms = FormClassIndex.findFormsBoundToClass(psiClass.getProject(), psiClass);
        if (!forms.isEmpty()) {
          return GotoRelatedItem.createItems(forms, "UI Forms");
        }
        psiClass = PsiTreeUtil.getParentOfType(psiClass, PsiClass.class);
      }
    }
    else {
      PsiFile file = context.getContainingFile();
      if (file != null && file.getFileType() == GuiFormFileType.INSTANCE) {
        try {
          String className = Utils.getBoundClassName(file.getText());
          if (className != null) {
            Project project = file.getProject();
            PsiClass aClass = JavaPsiFacade.getInstance(project).findClass(className, GlobalSearchScope.allScope(project));
            if (aClass != null) {
              return Collections.singletonList(new GotoRelatedItem(aClass, "Java"));
            }
          }
        }
        catch (Exception ignore) {

        }
      }
    }
    return Collections.emptyList();
  }
}