/*
* 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.
*/
/*
* Created by IntelliJ IDEA.
* User: max
* Date: May 14, 2002
* Time: 7:18:30 PM
* To change template for new class use
* Code Style | Class Templates options (Tools | IDE Options).
*/
package com.intellij.openapi.editor.actions;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.editor.*;
import com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler;
import com.intellij.openapi.ide.CopyPasteManager;
import consulo.annotations.RequiredWriteAction;
public class DeleteLineAction extends TextComponentEditorAction {
public DeleteLineAction() {
super(new Handler());
}
private static class Handler extends EditorWriteActionHandler {
public Handler() {
super(true);
}
@RequiredWriteAction
@Override
public void executeWriteAction(Editor editor, DataContext dataContext) {
CommandProcessor.getInstance().setCurrentCommandGroupId(EditorActionUtil.DELETE_COMMAND_GROUP);
CopyPasteManager.getInstance().stopKillRings();
SelectionModel selectionModel = editor.getSelectionModel();
Document document = editor.getDocument();
if (selectionModel.hasSelection()) {
int selectionStart = selectionModel.getSelectionStart();
int selectionEnd = selectionModel.getSelectionEnd();
selectionModel.removeSelection();
int lineStartOffset = document.getLineStartOffset(document.getLineNumber(selectionStart));
int nextLine = document.getLineNumber(selectionEnd);
if (document.getLineStartOffset(nextLine) != selectionEnd) {
// There is a possible case that selection ends at the line start, i.e. something like below ([...] denotes selected text,
// '|' is a line start):
// |line 1
// |[line 2
// |]line 3
// We don't want to delete line 3 here. However, the situation below is different:
// |line 1
// |[line 2
// |line] 3
// Line 3 must be removed here.
nextLine++;
}
int nextLineStartOffset = nextLine == document.getLineCount()
? document.getTextLength()
: Math.min(document.getTextLength(), document.getLineStartOffset(nextLine));
document.deleteString(lineStartOffset, nextLineStartOffset);
return;
}
VisualPosition position = editor.getCaretModel().getVisualPosition();
selectionModel.selectLineAtCaret();
boolean removeLastSymbol = selectionModel.getSelectionEnd() == document.getTextLength() && document.getLineCount() > 1;
EditorModificationUtil.deleteSelectedText(editor);
if (removeLastSymbol) {
document.deleteString(document.getTextLength() - 1, document.getTextLength());
position = new VisualPosition(position.line - 1, position.column);
}
editor.getCaretModel().moveToVisualPosition(position);
}
}
}