JavaTemplateCompletionProcessor.java

/*
 * Copyright 2000-2009 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.codeInsight.template.macro;

import com.intellij.codeInsight.completion.JavaCompletionUtil;
import com.intellij.codeInsight.completion.JavaMethodCallElement;
import com.intellij.codeInsight.completion.SmartCompletionDecorator;
import com.intellij.codeInsight.lookup.LookupElement;
import com.intellij.codeInsight.template.ExpressionContext;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.util.ClassConditionKey;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiPackage;

import java.util.List;

/**
 * @author yole
 */
public class JavaTemplateCompletionProcessor implements TemplateCompletionProcessor {
  @Override
  public boolean nextTabOnItemSelected(final ExpressionContext context, final LookupElement item) {
    final List<? extends PsiElement> elements = JavaCompletionUtil.getAllPsiElements(item);
    if (elements != null && elements.size() == 1 && elements.get(0) instanceof PsiPackage) {
      return false;
    }

    Editor editor = context.getEditor();
    if (editor != null && editor.getUserData(JavaMethodCallElement.ARGUMENT_TEMPLATE_ACTIVE) != null) {
      return item.as(ClassConditionKey.create(SmartCompletionDecorator.class)) != null;
    }

    return true;
  }
}