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/*
* Copyright 2000-2009 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.smartEnter;
import com.intellij.openapi.editor.Document;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.RangeMarker;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
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 com.intellij.util.text.CharArrayUtil;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
/**
* @author max
*/
public abstract class SmartEnterProcessor {
public abstract boolean process(@NotNull final Project project, @NotNull final Editor editor, @NotNull final PsiFile psiFile);
public boolean processAfterCompletion(@NotNull final Editor editor, @NotNull final PsiFile psiFile) {
return process(psiFile.getProject(), editor, psiFile);
}
protected void reformat(PsiElement atCaret) throws IncorrectOperationException {
final TextRange range = atCaret.getTextRange();
final PsiFile file = atCaret.getContainingFile();
final PsiFile baseFile = file.getViewProvider().getPsi(file.getViewProvider().getBaseLanguage());
CodeStyleManager.getInstance(atCaret.getProject()).reformatText(baseFile, range.getStartOffset(), range.getEndOffset());
}
protected RangeMarker createRangeMarker(final PsiElement elt) {
final PsiFile psiFile = elt.getContainingFile();
final PsiDocumentManager instance = PsiDocumentManager.getInstance(elt.getProject());
final Document document = instance.getDocument(psiFile);
return document.createRangeMarker(elt.getTextRange());
}
@Nullable
protected PsiElement getStatementAtCaret(Editor editor, PsiFile psiFile) {
int caret = editor.getCaretModel().getOffset();
final Document doc = editor.getDocument();
CharSequence chars = doc.getCharsSequence();
int offset = caret == 0 ? 0 : CharArrayUtil.shiftBackward(chars, caret - 1, " \t");
if (doc.getLineNumber(offset) < doc.getLineNumber(caret)) {
offset = CharArrayUtil.shiftForward(chars, caret, " \t");
}
return psiFile.findElementAt(offset);
}
protected static boolean isUncommited(@NotNull final Project project) {
return PsiDocumentManager.getInstance(project).hasUncommitedDocuments();
}
protected void commit(@NotNull final Editor editor) {
final Project project = editor.getProject();
PsiDocumentManager.getInstance(project).commitDocument(editor.getDocument());
//some psi operations may block the document, unblock here
PsiDocumentManager.getInstance(project).doPostponedOperationsAndUnblockDocument(editor.getDocument());
}
}
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