java/java-impl/src/com/intellij/codeInsight/folding/impl/CollapseExpandJavadocsHandler.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.folding.impl;
  17
  18 import com.intellij.codeInsight.CodeInsightActionHandler;
  19 import com.intellij.codeInsight.folding.CodeFoldingManager;
  20 import com.intellij.openapi.editor.Editor;
  21 import com.intellij.openapi.editor.FoldRegion;
  22 import com.intellij.openapi.project.Project;
  23 import com.intellij.psi.PsiDocumentManager;
  24 import com.intellij.psi.PsiElement;
  25 import com.intellij.psi.PsiFile;
  26 import com.intellij.psi.javadoc.PsiDocComment;
  27 import org.jetbrains.annotations.NotNull;
  28
  29 public class CollapseExpandJavadocsHandler implements CodeInsightActionHandler {
  30   private final boolean myExpand;
  31
  32   public CollapseExpandJavadocsHandler(boolean isExpand) {
  33     myExpand = isExpand;
  34   }
  35
  36   public void invoke(@NotNull Project project, @NotNull final Editor editor, @NotNull PsiFile file){
  37     PsiDocumentManager.getInstance(project).commitAllDocuments();
  38
  39     CodeFoldingManager foldingManager = CodeFoldingManager.getInstance(project);
  40     foldingManager.updateFoldRegions(editor);
  41     final FoldRegion[] allFoldRegions = editor.getFoldingModel().getAllFoldRegions();
  42     Runnable processor = new Runnable() {
  43       public void run() {
  44         for (FoldRegion region : allFoldRegions) {
  45           PsiElement element = EditorFoldingInfo.get(editor).getPsiElement(region);
  46           if (element instanceof PsiDocComment) {
  47             region.setExpanded(myExpand);
  48           }
  49         }
  50       }
  51     };
  52     editor.getFoldingModel().runBatchFoldingOperation(processor);
  53   }
  54
  55   public boolean startInWriteAction() {
  56     return true;
  57   }
  58 }