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editor.ListPopup Maven / Gradle / Ivy
/*
*
* Copyright 2010 Guidewire Software, Inc.
*
*/
package editor;
import editor.util.ContainerMoverSizer;
import editor.util.ContainerSizer;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.event.ChangeEvent;
import javax.swing.event.UndoableEditListener;
import javax.swing.text.JTextComponent;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
public class ListPopup extends AbstractPopup
{
private JList _list;
protected PopupListModel _model;
private EditorKeyListener _editorKeyListener;
private UndoableEditListener _docListener;
public ListPopup( JTextComponent editor, PopupListModel model )
{
super( editor );
_model = model;
initLayout();
}
@Override
public void show( Component invoker, int x, int y )
{
String strFilter = getModel().getFilterPrefix();
if( strFilter != null && strFilter.length() > 0 &&
_list.getModel().getSize() == 1 )
{
// Completes the value instead of showing popup
fireNodeChanged( new ChangeEvent( _model.getInsertionTextFrom( _list.getModel().getElementAt( 0 ) ) ) );
setVisible( false );
return;
}
super.show( invoker, x, y );
}
@Override
public void setValue( Object value )
{
_list.setSelectedValue( value, true );
}
public PopupListModel getModel()
{
return _model;
}
public JList getJList()
{
return _list;
}
protected void initLayout()
{
setOpaque( false );
setDoubleBuffered( true );
JPanel pane = new JPanel( new GridBagLayout() );
GridBagConstraints c = new GridBagConstraints();
Border border = BorderFactory.createCompoundBorder(
UIManager.getBorder( "PopupMenu.border" ),
BorderFactory.createEmptyBorder( 2, 2, 2, 2 ) );
ContainerMoverSizer content = new ContainerMoverSizer( border );
content.setLayout( new BorderLayout() );
PopupListModel listModel = _model;
int iY = 0;
if( listModel != null && listModel.getModelUpdatedOrFilteredByPredicate().size() > 0 )
{
JComponent caption = getCaptionComponent( listModel );
c.anchor = GridBagConstraints.WEST;
c.fill = GridBagConstraints.HORIZONTAL;
c.gridx = 0;
c.gridy = iY++;
c.gridwidth = GridBagConstraints.REMAINDER;
c.gridheight = 1;
c.weightx = 1;
c.weighty = 0;
pane.add( caption, c );
}
//
// The list
//
_list = new JList( listModel );
_list.addMouseListener( new MouseHandler() );
_list.setCellRenderer( makeCellRenderer() );
_list.getSelectionModel().setSelectionMode( ListSelectionModel.SINGLE_SELECTION );
_list.setVisibleRowCount( 10 );
JScrollPane scrollPane = new JScrollPane( _list );
scrollPane.setBorder( UIManager.getBorder( "TextField.border" ) );
c.anchor = GridBagConstraints.CENTER;
c.fill = GridBagConstraints.BOTH;
c.gridx = 0;
c.gridy = iY;
c.gridwidth = GridBagConstraints.REMAINDER;
c.gridheight = 1;
c.weightx = 1;
c.weighty = 1;
pane.add( scrollPane, c );
content.add( pane, BorderLayout.CENTER );
JPanel sizerPanel = new JPanel( new BorderLayout() );
sizerPanel.add( new JPanel(), BorderLayout.CENTER );
sizerPanel.add( new ContainerSizer(), BorderLayout.EAST );
content.add( sizerPanel, BorderLayout.SOUTH );
add( content );
_editorKeyListener = new EditorKeyListener();
if( getEditor() != null )
{
_editorKeyListener = new EditorKeyListener();
_docListener = e -> filterDisplay();
}
}
public JComponent getCaptionComponent( PopupListModel listModel )
{
JLabel labelTypeName = new JLabel( listModel.getTypeName() );
labelTypeName.setOpaque( true );
labelTypeName.setBackground( Scheme.active().getControl() );
labelTypeName.setFont( labelTypeName.getFont().deriveFont( Font.BOLD ) );
labelTypeName.setBorder( BorderFactory.createEmptyBorder( 0, 3, 3, 3 ) );
JPanel sortedByPanel = getSortedByPanel();
if( sortedByPanel == null )
{
return labelTypeName;
}
else
{
JPanel panel = new JPanel( new BorderLayout() );
panel.add( labelTypeName, BorderLayout.WEST );
panel.add( sortedByPanel, BorderLayout.EAST );
return panel;
}
}
protected JPanel getSortedByPanel()
{
return null;
}
@Override
public void refresh()
{
_model = (PopupListModel)_model.getFilteredModel( _model.getFilterPrefix() );
_list.setModel( _model );
_list.setSelectedIndex( _model.getSize() > 0 ? 0 : -1 );
revalidate();
repaint();
}
@Override
protected void registerListeners()
{
unregisterListeners();
getEditor().addKeyListener( _editorKeyListener );
getEditor().getDocument().addUndoableEditListener( _docListener );
}
@Override
protected void unregisterListeners()
{
getEditor().getDocument().removeUndoableEditListener( _docListener );
getEditor().removeKeyListener( _editorKeyListener );
}
@Override
protected String filterDisplay()
{
String strPrefix = super.filterDisplay();
_list.setModel( (PopupListModel)_model.getFilteredModel( strPrefix ) );
_list.setSelectedIndex( 0 );
_list.revalidate();
_list.repaint();
return strPrefix;
}
public void fireSelectionAndDismiss()
{
Object selection = _list.getSelectedValue();
if( selection != null )
{
fireNodeChanged(
new ChangeEvent( _model.getInsertionTextFrom( selection ) ) );
setVisible( false );
}
}
protected ListCellRenderer makeCellRenderer()
{
return new DefaultCellRenderer( _list );
}
public class DefaultCellRenderer extends AbstractListCellRenderer
{
public DefaultCellRenderer( JComponent list )
{
super( list, true );
}
@Override
public void configure()
{
setText( _model.getDisplayText( getNode() ) );
}
}
/**
*/
class EditorKeyListener extends KeyAdapter
{
@Override
public void keyPressed( KeyEvent e )
{
if( e.getKeyCode() == KeyEvent.VK_UP || e.getKeyCode() == KeyEvent.VK_KP_UP ||
e.getKeyCode() == KeyEvent.VK_LEFT || e.getKeyCode() == KeyEvent.VK_KP_LEFT )
{
Action selectPrevious = _list.getActionMap().get( "selectPreviousRow" );
selectPrevious.actionPerformed( new ActionEvent( _list, 0, "selectPreviousRow" ) );
e.consume();
}
else if( e.getKeyCode() == KeyEvent.VK_DOWN || e.getKeyCode() == KeyEvent.VK_KP_DOWN ||
e.getKeyCode() == KeyEvent.VK_RIGHT || e.getKeyCode() == KeyEvent.VK_KP_RIGHT )
{
Action selectNext = _list.getActionMap().get( "selectNextRow" );
selectNext.actionPerformed( new ActionEvent( _list, 0, "selectNextRow" ) );
e.consume();
}
else if( e.getKeyCode() == KeyEvent.VK_PAGE_UP )
{
Action scrollUpChangeSelection = _list.getActionMap().get( "scrollUp" );
scrollUpChangeSelection.actionPerformed( new ActionEvent( _list, 0, "scrollUp" ) );
e.consume();
}
else if( e.getKeyCode() == KeyEvent.VK_PAGE_DOWN )
{
Action scrollDownChangeSelection = _list.getActionMap().get( "scrollDown" );
scrollDownChangeSelection.actionPerformed( new ActionEvent( _list, 0, "scrollDown" ) );
e.consume();
}
else if( e.getKeyCode() == KeyEvent.VK_ENTER ||
e.getKeyCode() == KeyEvent.VK_SPACE ||
e.getKeyCode() == KeyEvent.VK_TAB )
{
fireSelectionAndDismiss();
e.consume();
}
else if( e.getKeyCode() == KeyEvent.VK_ESCAPE )
{
setVisible( false );
e.consume();
}
}
}
public void selectElement( int i )
{
_list.setSelectedIndex( i );
fireSelectionAndDismiss();
}
/**
*/
class MouseHandler extends MouseAdapter
{
@Override
public void mouseClicked( MouseEvent e )
{
int iIndex = _list.locationToIndex( e.getPoint() );
if( iIndex < 0 )
{
return;
}
_list.setSelectedIndex( iIndex );
fireSelectionAndDismiss();
}
}
}
