| /* |
| * Copyright 2000-2012 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.editorActions; |
| |
| import com.intellij.codeInsight.CodeInsightActionHandler; |
| import com.intellij.codeInsight.CodeInsightUtilBase; |
| import com.intellij.codeInsight.actions.BaseCodeInsightAction; |
| import com.intellij.codeInsight.editorActions.emacs.EmacsProcessingHandler; |
| import com.intellij.codeInsight.editorActions.emacs.LanguageEmacsExtension; |
| import com.intellij.lang.LanguageFormatting; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.editor.LogicalPosition; |
| import com.intellij.openapi.editor.ScrollType; |
| import com.intellij.openapi.fileEditor.FileDocumentManager; |
| import com.intellij.openapi.project.DumbAware; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.PsiDocumentManager; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFile; |
| import com.intellij.psi.codeStyle.CodeStyleManager; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class EmacsStyleIndentAction extends BaseCodeInsightAction implements DumbAware { |
| |
| private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.generation.actions.EmacsStyleIndentAction"); |
| |
| @NotNull |
| @Override |
| protected CodeInsightActionHandler getHandler() { |
| return new Handler(); |
| } |
| |
| @Override |
| protected boolean isValidForFile(@NotNull final Project project, @NotNull final Editor editor, @NotNull final PsiFile file) { |
| final PsiElement context = file.findElementAt(editor.getCaretModel().getOffset()); |
| return context != null && LanguageFormatting.INSTANCE.forContext(context) != null; |
| } |
| |
| //---------------------------------------------------------------------- |
| private static class Handler implements CodeInsightActionHandler { |
| |
| @Override |
| public void invoke(@NotNull final Project project, @NotNull final Editor editor, @NotNull final PsiFile file) { |
| if (!CodeInsightUtilBase.prepareEditorForWrite(editor)) return; |
| PsiDocumentManager.getInstance(project).commitAllDocuments(); |
| |
| if (!FileDocumentManager.getInstance().requestWriting(editor.getDocument(), project)) { |
| return; |
| } |
| |
| EmacsProcessingHandler emacsProcessingHandler = LanguageEmacsExtension.INSTANCE.forLanguage(file.getLanguage()); |
| if (emacsProcessingHandler != null) { |
| EmacsProcessingHandler.Result result = emacsProcessingHandler.changeIndent(project, editor, file); |
| if (result == EmacsProcessingHandler.Result.STOP) { |
| return; |
| } |
| } |
| |
| final Document document = editor.getDocument(); |
| final int startOffset = editor.getCaretModel().getOffset(); |
| final int line = editor.offsetToLogicalPosition(startOffset).line; |
| final int col = editor.getCaretModel().getLogicalPosition().column; |
| final int lineStart = document.getLineStartOffset(line); |
| final int initLineEnd = document.getLineEndOffset(line); |
| try{ |
| final CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project); |
| final int newPos = codeStyleManager.adjustLineIndent(file, lineStart); |
| final int newCol = newPos - lineStart; |
| final int lineInc = document.getLineEndOffset(line) - initLineEnd; |
| if (newCol >= col + lineInc && newCol >= 0) { |
| final LogicalPosition pos = new LogicalPosition(line, newCol); |
| editor.getCaretModel().moveToLogicalPosition(pos); |
| editor.getSelectionModel().removeSelection(); |
| editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE); |
| } |
| } |
| catch(IncorrectOperationException e){ |
| LOG.error(e); |
| } |
| } |
| |
| @Override |
| public boolean startInWriteAction() { |
| return true; |
| } |
| } |
| } |