/*
* Copyright 2000-2015 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.
*/
/*
* @author max
*/
package com.intellij.openapi.editor.actions;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.editor.*;
import com.intellij.openapi.editor.actionSystem.EditorActionHandler;
import com.intellij.openapi.editor.ex.EditorEx;
import com.intellij.openapi.editor.impl.EditorImpl;
class MoveCaretLeftOrRightHandler extends EditorActionHandler {
enum Direction {LEFT, RIGHT}
private final Direction myDirection;
MoveCaretLeftOrRightHandler(Direction direction) {
super(true);
myDirection = direction;
}
@Override
public void doExecute(Editor editor, Caret caret, DataContext dataContext) {
final SelectionModel selectionModel = editor.getSelectionModel();
final CaretModel caretModel = editor.getCaretModel();
ScrollingModel scrollingModel = editor.getScrollingModel();
if (selectionModel.hasSelection() && (!(editor instanceof EditorEx) || !((EditorEx)editor).isStickySelection())) {
int start = selectionModel.getSelectionStart();
int end = selectionModel.getSelectionEnd();
int caretOffset = caretModel.getOffset();
if (start <= caretOffset && end >= caretOffset) { // See IDEADEV-36957
VisualPosition targetPosition = myDirection == Direction.RIGHT ? caret.getSelectionEndPosition()
: caret.getSelectionStartPosition();
selectionModel.removeSelection();
caretModel.moveToVisualPosition(targetPosition);
if (caret == editor.getCaretModel().getPrimaryCaret()) {
scrollingModel.scrollToCaret(ScrollType.RELATIVE);
}
return;
}
}
VisualPosition currentPosition = caret.getVisualPosition();
if (caret.isAtBidiRunBoundary() && (myDirection == Direction.RIGHT ^ currentPosition.leansRight)) {
caret.moveToVisualPosition(currentPosition.leanRight(!currentPosition.leansRight));
}
else {
final boolean scrollToCaret = (!(editor instanceof EditorImpl) || ((EditorImpl)editor).isScrollToCaret())
&& caret == editor.getCaretModel().getPrimaryCaret();
caretModel.moveCaretRelatively(myDirection == Direction.RIGHT ? 1 : -1, 0, false, false, scrollToCaret);
}
}
}