/*
* Copyright 2003-2016 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 jetbrains.mps.nodeEditor;
import com.intellij.ui.ScrollPaneFactory;
import jetbrains.mps.util.WindowsUtil;
import javax.swing.JDialog;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.border.LineBorder;
import java.awt.*;
import java.awt.event.*;
/**
* FIXME AbstractInformationDialog, has nothing to do with Node. Worth existence at all, or shall be merged with NodeInformationDialog?
* Why not use IDEA's popup builder (ComponentPopupBuilder) mechanism? We use idea ui (ScrollPaneFactory) anyway.
*/
public abstract class AbstractNodeInformationDialog extends JDialog {
private JTextArea myTextArea;
// COLORS: Remove hardcoded color
private static final Color BACKGROUND_COLOR = new Color(253, 254, 226);
private Component prevFocusOwner;
private FocusListener myOwnerFocusListener = new FocusAdapter() {
@Override
public void focusLost(FocusEvent focusEvent) {
if (focusEvent.getOppositeComponent() != myTextArea) {
dispose();
}
}
};
private MouseListener myOwnerMouseListener = new MouseAdapter() {
@Override
public void mousePressed(MouseEvent mouseEvent) {
dispose();
}
};
private KeyListener myOwnerKeyListener = new KeyAdapter() {
@Override
public void keyPressed(KeyEvent keyEvent) {
dispose();
}
};
private KeyListener myInformationDialogKeyListener = new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyChar() == KeyEvent.VK_ESCAPE) {
dispose();
}
}
};
public AbstractNodeInformationDialog(Frame owner, Point location, String text) {
super(owner);
prevFocusOwner = owner.getFocusOwner();
if (prevFocusOwner == null) {
prevFocusOwner = owner.getMostRecentFocusOwner();
}
setUndecorated(true);
setModal(false);
myTextArea = new JTextArea();
myTextArea.setEditable(false);
myTextArea.setText(text);
myTextArea.setFont(EditorSettings.getInstance().getDefaultEditorFont());
myTextArea.setOpaque(true);
myTextArea.setBackground(BACKGROUND_COLOR);
JScrollPane scrollPane = ScrollPaneFactory.createScrollPane(myTextArea);
scrollPane.setBorder(new LineBorder(Color.BLACK));
add(scrollPane);
pack();
setLocation(location);
Rectangle rect = WindowsUtil.findDeviceBoundsAt(location);
if (rect.x + rect.width < getX() + getWidth()) {
setLocation(rect.x + rect.width - getWidth(), getY());
}
if (rect.y + rect.height < getY() + getHeight()) {
setLocation(getX(), rect.y + rect.height - getHeight());
}
addListeners();
}
private void addListeners() {
prevFocusOwner.addFocusListener(myOwnerFocusListener);
prevFocusOwner.addKeyListener(myOwnerKeyListener);
prevFocusOwner.addMouseListener(myOwnerMouseListener);
myTextArea.addKeyListener(myInformationDialogKeyListener);
}
@Override
public void dispose() {
prevFocusOwner.removeFocusListener(myOwnerFocusListener);
prevFocusOwner.removeKeyListener(myOwnerKeyListener);
prevFocusOwner.removeMouseListener(myOwnerMouseListener);
super.dispose();
}
@Override
public void setVisible(boolean b) {
super.setVisible(b);
// focusing prevFocusOvner to redirect all keyboard events there by default
if (b) {
prevFocusOwner.requestFocus();
}
}
}