java/java-impl/src/com/intellij/codeInsight/template/macro/JavaTemplateCompletionProcessor.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package com.intellij.codeInsight.template.macro;
  17
  18 import com.intellij.codeInsight.completion.JavaCompletionUtil;
  19 import com.intellij.codeInsight.lookup.LookupElement;
  20 import com.intellij.codeInsight.template.ExpressionContext;
  21 import com.intellij.psi.PsiElement;
  22 import com.intellij.psi.PsiMethod;
  23 import com.intellij.psi.PsiPackage;
  24
  25 import java.util.List;
  26
  27 /**
  28  * @author yole
  29  */
  30 public class JavaTemplateCompletionProcessor implements TemplateCompletionProcessor {
  31   public boolean nextTabOnItemSelected(final ExpressionContext context, final LookupElement item) {
  32     final List<? extends PsiElement> elements = JavaCompletionUtil.getAllPsiElements(item);
  33     if (elements != null) {
  34       if (elements.size() != 1) return false;
  35       final PsiElement element = elements.get(0);
  36       if (element instanceof PsiPackage) {
  37         return false;
  38       }
  39       if (element instanceof PsiMethod) {
  40         PsiMethod method = (PsiMethod)element;
  41         if (method.getParameterList().getParametersCount() != 0) {
  42           return false;
  43         }
  44       }
  45     }
  46     return true;
  47   }
  48 }