java/java-impl/src/com/intellij/codeInsight/completion/simple/BracesTailType.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
  17 package com.intellij.codeInsight.completion.simple;
  18
  19 import com.intellij.codeInsight.TailType;
  20 import com.intellij.codeInsight.editorActions.EnterHandler;
  21 import com.intellij.codeInsight.editorActions.enter.EnterAfterUnmatchedBraceHandler;
  22 import com.intellij.openapi.editor.Editor;
  23 import com.intellij.openapi.editor.actionSystem.EditorActionManager;
  24 import com.intellij.openapi.actionSystem.IdeActions;
  25 import com.intellij.openapi.fileTypes.StdFileTypes;
  26 import com.intellij.psi.codeStyle.CodeStyleSettings;
  27 import com.intellij.psi.codeStyle.CodeStyleSettingsManager;
  28 import com.intellij.ide.DataManager;
  29
  30 /**
  31  * @author peter
  32  */
  33 public abstract class BracesTailType extends TailType {
  34
  35   protected abstract boolean isSpaceBeforeLBrace(CodeStyleSettings styleSettings, Editor editor, final int tailOffset);
  36
  37   public int processTail(final Editor editor, int tailOffset) {
  38     CodeStyleSettings styleSettings = CodeStyleSettingsManager.getSettings(editor.getProject());
  39     if (isSpaceBeforeLBrace(styleSettings, editor, tailOffset)) {
  40       tailOffset = insertChar(editor, tailOffset, ' ');
  41     }
  42     tailOffset = insertChar(editor, tailOffset, '{');
  43     if (EnterAfterUnmatchedBraceHandler.isAfterUnmatchedLBrace(editor, tailOffset, StdFileTypes.JAVA)) {
  44       new EnterHandler(EditorActionManager.getInstance().getActionHandler(IdeActions.ACTION_EDITOR_ENTER)).executeWriteAction(editor,
  45                                                                                                                             DataManager.getInstance().getDataContext(editor.getContentComponent()));
  46       return editor.getCaretModel().getOffset();
  47     }
  48     return tailOffset;
  49   }
  50
  51 }