PopupPanel.java

package jetbrains.mps.vcs.changesmanager.editor;

/*Generated by MPS */

import javax.swing.JPanel;
import jetbrains.mps.vcs.diff.ui.common.ChangeGroup;
import jetbrains.mps.nodeEditor.EditorComponent;
import com.intellij.openapi.actionSystem.ActionToolbar;
import java.awt.BorderLayout;
import com.intellij.openapi.actionSystem.ActionManager;
import com.intellij.openapi.actionSystem.ActionPlaces;
import com.intellij.openapi.actionSystem.ActionGroup;
import com.intellij.ui.ColoredSideBorder;
import java.awt.Color;
import jetbrains.mps.vcs.diff.changes.ChangeType;
import javax.swing.JLayeredPane;
import javax.swing.SwingUtilities;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;

/*package*/ class PopupPanel extends JPanel {
  private ChangeStripsPainter myPainter;
  private ChangeGroup myChangeGroup;
  private PopupPanel.MyMouseListener myMouseListener = new PopupPanel.MyMouseListener();
  private PopupPanel.MyFocusListener myFocusListener = new PopupPanel.MyFocusListener();
  private EditorComponent myEditor;
  private BaseVersionEditorComponent myBaseEditor;
  private ActionToolbar myToolbar;
  public PopupPanel(ChangeStripsPainter painter, ChangeGroup group) {
    myChangeGroup = group;
    myPainter = painter;
    myEditor = myPainter.getEditorComponent();
    setLayout(new BorderLayout());
    setOpaque(false);

    JPanel toolbarPanel = new JPanel(new BorderLayout());
    toolbarPanel.setOpaque(false);
    myToolbar = ActionManager.getInstance().createActionToolbar(ActionPlaces.UNKNOWN, ((ActionGroup) ActionManager.getInstance().getAction("jetbrains.mps.vcs.platform.actions.ChangesStrip_ActionGroup")), true);
    myToolbar.setTargetComponent(myPainter.getEditorComponent());
    toolbarPanel.add(myToolbar.getComponent(), BorderLayout.WEST);
    add(toolbarPanel, BorderLayout.NORTH);
    myToolbar.getComponent().setBorder(new ColoredSideBorder(Color.BLACK, Color.BLACK, (myChangeGroup.getChangeType() != ChangeType.ADD ? null : Color.BLACK), Color.BLACK, 1));

    if (myChangeGroup.getChangeType() != ChangeType.ADD) {
      myBaseEditor = new BaseVersionEditorComponent(myEditor.getEditorContext().getRepository(), myChangeGroup);
      // Do not extend this editor with extensions: the project is tricky to get from this point, 
      // and this editor doesn't seem to be that important to extend. 
      add(myBaseEditor.getScrollPane(), BorderLayout.CENTER);
    }
  }
  /*package*/ ChangeGroup getChangeGroup() {
    return myChangeGroup;
  }
  public void show(int x, int y) {
    JLayeredPane layeredPane = myEditor.getRootPane().getLayeredPane();
    setLocation(SwingUtilities.convertPoint(myEditor, x, y, layeredPane));
    setVisible(true);
    layeredPane.add(this, JLayeredPane.POPUP_LAYER);

    myPainter.setGroupHighlighted(myChangeGroup, true);
    myToolbar.updateActionsImmediately();
    setSize(getPreferredSize());
    int overflow = ((int) getBounds().getMaxX()) - layeredPane.getWidth();
    if (overflow > 0) {
      // panel is too wide, need to move it 
      setLocation(Math.max(0, getX() - overflow), getY());
    }
    layeredPane.validate();
    layeredPane.repaint(getBounds());

    addListeners();
  }
  private void addListeners() {
    myEditor.addMouseListener(myMouseListener);
    myEditor.addFocusListener(myFocusListener);
  }
  private void removeListeners() {
    myEditor.removeFocusListener(myFocusListener);
    myEditor.removeMouseListener(myMouseListener);
  }
  /*package*/ void dispose() {
    removeListeners();
    JLayeredPane layeredPane = myEditor.getRootPane().getLayeredPane();
    layeredPane.remove(this);
    layeredPane.validate();
    layeredPane.repaint(getBounds());

    myPainter.setGroupHighlighted(myChangeGroup, false);
    myPainter.popupClosed();

    if (myBaseEditor != null) {
      myBaseEditor.dispose();
      myBaseEditor = null;
    }
  }
  private class MyMouseListener extends MouseAdapter {
    public MyMouseListener() {
    }
    @Override
    public void mousePressed(MouseEvent event) {
      dispose();
    }
  }
  private class MyFocusListener extends FocusAdapter {
    public MyFocusListener() {
    }
    @Override
    public void focusLost(FocusEvent event) {
      dispose();
    }
  }
}