/*
* Copyright 2000-2011 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.util.ui.table;
import java.awt.*;
import java.util.Arrays;
import java.util.List;
/**
* @author Konstantin Bulenkov
*/
class JBListTableFocusTraversalPolicy extends FocusTraversalPolicy {
private final JBTableRowEditor myEditor;
public JBListTableFocusTraversalPolicy(JBTableRowEditor editor) {
myEditor = editor;
}
@Override
public Component getComponentAfter(Container aContainer, Component aComponent) {
final List<Component> focusableComponents = Arrays.<Component>asList(myEditor.getFocusableComponents());
int i = focusableComponents.indexOf(aComponent);
if (i != -1) {
i++;
if (i >= focusableComponents.size()) {
i = 0;
}
return focusableComponents.get(i);
}
return null;
}
@Override
public Component getComponentBefore(Container aContainer, Component aComponent) {
final List<Component> focusableComponents = Arrays.<Component>asList(myEditor.getFocusableComponents());
int i = focusableComponents.indexOf(aComponent);
if (i != -1) {
i--;
if (i == -1) {
i = focusableComponents.size() - 1;
}
return focusableComponents.get(i);
}
return null;
}
@Override
public Component getFirstComponent(Container aContainer) {
final List<Component> focusableComponents = Arrays.<Component>asList(myEditor.getFocusableComponents());
return focusableComponents.isEmpty() ? null : focusableComponents.get(0);
}
@Override
public Component getLastComponent(Container aContainer) {
final List<Component> focusableComponents = Arrays.<Component>asList(myEditor.getFocusableComponents());
return focusableComponents.isEmpty() ? null : focusableComponents.get(focusableComponents.size() - 1);
}
@Override
public Component getDefaultComponent(Container aContainer) {
return myEditor.getPreferredFocusedComponent();
}
}