java/java-impl/src/com/intellij/codeInsight/editorActions/wordSelection/DocCommentSelectioner.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.editorActions.wordSelection;
  17
  18 import com.intellij.openapi.editor.Editor;
  19 import com.intellij.openapi.util.TextRange;
  20 import com.intellij.psi.JavaDocTokenType;
  21 import com.intellij.psi.PsiElement;
  22 import com.intellij.psi.javadoc.PsiDocComment;
  23 import com.intellij.psi.javadoc.PsiDocToken;
  24 import com.intellij.util.text.CharArrayUtil;
  25
  26 import java.util.List;
  27
  28 public class DocCommentSelectioner extends LineCommentSelectioner {
  29   public boolean canSelect(PsiElement e) {
  30     return e instanceof PsiDocComment;
  31   }
  32
  33   public List<TextRange> select(PsiElement e, CharSequence editorText, int cursorOffset, Editor editor) {
  34     List<TextRange> result = super.select(e, editorText, cursorOffset, editor);
  35
  36     PsiElement[] children = e.getChildren();
  37
  38     int startOffset = e.getTextRange().getStartOffset();
  39     int endOffset = e.getTextRange().getEndOffset();
  40
  41     for (PsiElement child : children) {
  42       if (child instanceof PsiDocToken) {
  43         PsiDocToken token = (PsiDocToken)child;
  44
  45         if (token.getTokenType() == JavaDocTokenType.DOC_COMMENT_DATA) {
  46           char[] chars = token.getText().toCharArray();
  47
  48           if (CharArrayUtil.shiftForward(chars, 0, " *\n\t\r") != chars.length) {
  49             break;
  50           }
  51         }
  52       }
  53
  54       startOffset = child.getTextRange().getEndOffset();
  55     }
  56
  57     for (PsiElement child : children) {
  58       if (child instanceof PsiDocToken) {
  59         PsiDocToken token = (PsiDocToken)child;
  60
  61         if (token.getTokenType() == JavaDocTokenType.DOC_COMMENT_DATA) {
  62           char[] chars = token.getText().toCharArray();
  63
  64           if (CharArrayUtil.shiftForward(chars, 0, " *\n\t\r") != chars.length) {
  65             endOffset = child.getTextRange().getEndOffset();
  66           }
  67         }
  68       }
  69     }
  70
  71     startOffset = CharArrayUtil.shiftBackward(editorText, startOffset - 1, "* \t") + 1;
  72
  73     result.add(new TextRange(startOffset, endOffset));
  74
  75     return result;
  76   }
  77 }