| /* |
| * Copyright 2000-2014 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.openapi.editor.actions; |
| |
| import com.intellij.ide.DataManager; |
| import com.intellij.openapi.actionSystem.DataContext; |
| import com.intellij.openapi.actionSystem.IdeActions; |
| import com.intellij.openapi.editor.*; |
| import com.intellij.openapi.editor.actionSystem.EditorAction; |
| import com.intellij.openapi.editor.actionSystem.EditorActionHandler; |
| import com.intellij.openapi.editor.actionSystem.EditorActionManager; |
| import com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler; |
| import com.intellij.openapi.editor.ex.EditorEx; |
| import com.intellij.openapi.ide.CopyPasteManager; |
| import com.intellij.openapi.util.Key; |
| import com.intellij.util.text.CharArrayUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * @author max |
| */ |
| public class SplitLineAction extends EditorAction { |
| public static Key<Boolean> SPLIT_LINE_KEY = Key.create("com.intellij.openapi.editor.actions.SplitLineAction"); |
| |
| public SplitLineAction() { |
| super(new Handler()); |
| setEnabledInModalContext(false); |
| } |
| |
| private static class Handler extends EditorWriteActionHandler { |
| public Handler() { |
| super(true); |
| } |
| |
| @Override |
| public boolean isEnabledForCaret(@NotNull Editor editor, @NotNull Caret caret, DataContext dataContext) { |
| return getEnterHandler().isEnabled(editor, caret, dataContext) && |
| !((EditorEx)editor).isEmbeddedIntoDialogWrapper(); |
| } |
| |
| @Override |
| public void executeWriteAction(Editor editor, Caret caret, DataContext dataContext) { |
| CopyPasteManager.getInstance().stopKillRings(); |
| final Document document = editor.getDocument(); |
| final RangeMarker rangeMarker = |
| document.createRangeMarker(editor.getCaretModel().getOffset(), editor.getCaretModel().getOffset() ); |
| final CharSequence chars = document.getCharsSequence(); |
| |
| int offset = editor.getCaretModel().getOffset(); |
| int lineStart = document.getLineStartOffset(document.getLineNumber(offset)); |
| |
| final CharSequence beforeCaret = chars.subSequence(lineStart, offset); |
| |
| if (CharArrayUtil.containsOnlyWhiteSpaces(beforeCaret)) { |
| String strToInsert = ""; |
| if (beforeCaret != null) { |
| strToInsert += beforeCaret.toString(); |
| } |
| strToInsert += "\n"; |
| document.insertString(lineStart, strToInsert); |
| editor.getCaretModel().moveToOffset(offset); |
| } else { |
| DataManager.getInstance().saveInDataContext(dataContext, SPLIT_LINE_KEY, true); |
| try { |
| getEnterHandler().execute(editor, caret, dataContext); |
| } |
| finally { |
| DataManager.getInstance().saveInDataContext(dataContext, SPLIT_LINE_KEY, null); |
| } |
| |
| editor.getCaretModel().moveToOffset(Math.min(document.getTextLength(), rangeMarker.getStartOffset())); |
| editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE); |
| } |
| |
| } |
| |
| private static EditorActionHandler getEnterHandler() { |
| return EditorActionManager.getInstance().getActionHandler(IdeActions.ACTION_EDITOR_ENTER); |
| } |
| } |
| } |