UserMenuLink.java

   1 package org.argeo.cms.util;
   2
   3 import javax.jcr.Node;
   4 import javax.security.auth.Subject;
   5
   6 import org.argeo.cms.CmsMsg;
   7 import org.argeo.cms.auth.CurrentUser;
   8 import org.argeo.cms.ui.CmsStyles;
   9 import org.argeo.node.NodeConstants;
  10 import org.eclipse.swt.events.DisposeEvent;
  11 import org.eclipse.swt.events.DisposeListener;
  12 import org.eclipse.swt.events.MouseEvent;
  13 import org.eclipse.swt.events.MouseListener;
  14 import org.eclipse.swt.widgets.Composite;
  15 import org.eclipse.swt.widgets.Control;
  16 import org.eclipse.swt.widgets.Label;
  17
  18 /** Open the user menu when clicked */
  19 public class UserMenuLink extends MenuLink {
  20
  21         public UserMenuLink() {
  22                 setCustom(CmsStyles.CMS_USER_MENU_LINK);
  23         }
  24
  25         @Override
  26         public Control createUi(Composite parent, Node context) {
  27                 Subject subject = CmsUtils.getCmsView().getSubject();
  28                 String username = CurrentUser.getUsername(subject);
  29                 if (username.equalsIgnoreCase(NodeConstants.ROLE_ANONYMOUS))
  30                         setLabel(CmsMsg.login.lead());
  31                 else {
  32                         setLabel(CurrentUser.getDisplayName(subject));
  33                 }
  34                 Label link = (Label) ((Composite) super.createUi(parent, context))
  35                                 .getChildren()[0];
  36                 link.addMouseListener(new UserMenuLinkController());
  37                 return link.getParent();
  38         }
  39
  40         protected UserMenu createUserMenu(Control source) {
  41                 return new UserMenu(source.getParent());
  42         }
  43
  44         private class UserMenuLinkController implements MouseListener,
  45                         DisposeListener {
  46                 private static final long serialVersionUID = 3634864186295639792L;
  47
  48                 private UserMenu userMenu = null;
  49                 private long lastDisposeTS = 0l;
  50
  51                 //
  52                 // MOUSE LISTENER
  53                 //
  54                 @Override
  55                 public void mouseDown(MouseEvent e) {
  56                         if (e.button == 1) {
  57                                 Control source = (Control) e.getSource();
  58                                 if (userMenu == null) {
  59                                         long durationSinceLastDispose = System.currentTimeMillis()
  60                                                         - lastDisposeTS;
  61                                         // avoid to reopen the menu, if one has clicked gain
  62                                         if (durationSinceLastDispose > 200) {
  63                                                 userMenu = createUserMenu(source);
  64                                                 userMenu.getShell().addDisposeListener(this);
  65                                         }
  66                                 }
  67                         }
  68                 }
  69
  70                 @Override
  71                 public void mouseDoubleClick(MouseEvent e) {
  72                 }
  73
  74                 @Override
  75                 public void mouseUp(MouseEvent e) {
  76                 }
  77
  78                 @Override
  79                 public void widgetDisposed(DisposeEvent event) {
  80                         userMenu = null;
  81                         lastDisposeTS = System.currentTimeMillis();
  82                 }
  83         }
  84 }