python/rest/src/com/jetbrains/rest/formatter/RestFormattingModelBuilder.java

/*
 * Copyright 2000-2013 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.jetbrains.rest.formatter;

import com.intellij.formatting.*;
import com.intellij.lang.ASTNode;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.psi.codeStyle.CodeStyleSettings;
import com.intellij.psi.codeStyle.CommonCodeStyleSettings;
import com.jetbrains.rest.RestLanguage;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * User : ktisha
 */
@SuppressWarnings("UseOfSystemOutOrSystemErr")
public class RestFormattingModelBuilder implements FormattingModelBuilderEx, CustomFormattingModelBuilder {

  @Override
  public boolean isEngagedToFormat(PsiElement context) {
    PsiFile file = context.getContainingFile();
    return file != null && file.getLanguage() == RestLanguage.INSTANCE;
  }

  @Nullable
  @Override
  public CommonCodeStyleSettings.IndentOptions getIndentOptionsToUse(@NotNull PsiFile file,
                                                                     @NotNull FormatTextRanges ranges,
                                                                     @NotNull CodeStyleSettings settings)
  {
    return null;
  }

  @NotNull
  @Override
  public FormattingModel createModel(@NotNull PsiElement element,
                                     @NotNull CodeStyleSettings settings,
                                     @NotNull FormattingMode mode) {

    final RestBlock block = new RestBlock(null, element.getNode(), null, Indent.getNoneIndent(), null);
    return FormattingModelProvider.createFormattingModelForPsiFile(element.getContainingFile(), block, settings);
  }

  @NotNull
  @Override
  public FormattingModel createModel(PsiElement element, CodeStyleSettings settings) {
    return createModel(element, settings, FormattingMode.REFORMAT);
  }

  @Nullable
  @Override
  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
    final PsiElement element = elementAtOffset.getPsi();
    final PsiElement container = element.getParent();
    return container != null ? container.getTextRange() : null;
  }
}