platform/lang-impl/src/com/intellij/codeInsight/template/postfix/templates/TypedPostfixTemplate.java


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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.codeInsight.template.postfix.templates;

import com.intellij.openapi.editor.Document;
import com.intellij.openapi.util.Condition;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;

public abstract class TypedPostfixTemplate extends PostfixTemplate {

  protected final PostfixTemplatePsiInfo myPsiInfo;
  protected final Condition<PsiElement> myTypeChecker;

  protected TypedPostfixTemplate(@NotNull String name,
                                 @NotNull String example,
                                 @NotNull PostfixTemplatePsiInfo psiInfo,
                                 @NotNull Condition<PsiElement> typeChecker) {
    super(name, example);
    this.myPsiInfo = psiInfo;
    this.myTypeChecker = typeChecker;
  }

  @Override
  public boolean isApplicable(@NotNull PsiElement context, @NotNull Document copyDocument, int newOffset) {
    PsiElement topmostExpression = myPsiInfo.getTopmostExpression(context);
    return topmostExpression != null && myTypeChecker.value(topmostExpression);
  }
}