import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
@Override
public String getFullName(final Object element) {
  for(ChooseByNameContributor c: getContributors()) {
    if (c instanceof GotoClassContributor) {
      String result = ((GotoClassContributor) c).getQualifiedName((NavigationItem) element);
      if (result != null) {
        return result;
      }
    }
  }

  String elementName = getElementName(element);
  if (elementName == null) return null;
  
  if (element instanceof PsiElement) {
    return SymbolPresentationUtil.getSymbolContainerText((PsiElement)element) + "." + elementName;
  }

  return elementName;
}
 

import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
@Override
public String getFullName(final Object element) {
  for(ChooseByNameContributor c: getContributors()) {
    if (c instanceof GotoClassContributor) {
      String result = ((GotoClassContributor) c).getQualifiedName((NavigationItem) element);
      if (result != null) return result;
    }
  }

  if (element instanceof PsiElement) {
    final PsiElement psiElement = (PsiElement)element;

    final String containerText = SymbolPresentationUtil.getSymbolContainerText(psiElement);
    return containerText + "." + getElementName(element);
  }

  return getElementName(element);
}
 

import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
@Override
public String getFullName(final Object element) {
  if (element instanceof PsiElement && !((PsiElement)element).isValid()) {
    return null;
  }

  for (ChooseByNameContributor c : getContributors()) {
    if (c instanceof GotoClassContributor) {
      String result = ((GotoClassContributor)c).getQualifiedName((NavigationItem)element);
      if (result != null) return result;
    }
  }

  return getElementName(element);
}
 

import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
public static String[] getSeparatorsFromContributors(ChooseByNameContributor[] contributors) {
  final Set<String> separators = new HashSet<String>();
  separators.add(".");
  for(ChooseByNameContributor c: contributors) {
    if (c instanceof GotoClassContributor) {
      ContainerUtil.addIfNotNull(separators, ((GotoClassContributor)c).getQualifiedNameSeparator());
    }
  }
  return ArrayUtil.toStringArray(separators);
}
 

import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
@Override
public String getFullName(final Object element) {
  for(ChooseByNameContributor c: getContributors()) {
    if (c instanceof GotoClassContributor) {
      String result = ((GotoClassContributor) c).getQualifiedName((NavigationItem) element);
      if (result != null) return result;
    }
  }

  return getElementName(element);
}
 

import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
public static String[] getSeparatorsFromContributors(ChooseByNameContributor[] contributors) {
  final Set<String> separators = new HashSet<String>();
  separators.add(".");
  for(ChooseByNameContributor c: contributors) {
    if (c instanceof GotoClassContributor) {
      separators.add(((GotoClassContributor)c).getQualifiedNameSeparator());
    }
  }
  return separators.toArray(new String[separators.size()]);
}
 

import com.intellij.navigation.GotoClassContributor; //导入依赖的package包/类
public static String[] getSeparatorsFromContributors(ChooseByNameContributor[] contributors) {
  final Set<String> separators = new HashSet<>();
  separators.add(".");
  for(ChooseByNameContributor c: contributors) {
    if (c instanceof GotoClassContributor) {
      ContainerUtil.addIfNotNull(separators, ((GotoClassContributor)c).getQualifiedNameSeparator());
    }
  }
  return separators.toArray(new String[separators.size()]);
}