Introduce UserMenuLink

[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / util / UserMenuLink.java

diff --git a/org.argeo.cms/src/org/argeo/cms/util/UserMenuLink.java b/org.argeo.cms/src/org/argeo/cms/util/UserMenuLink.java
new file mode 100644 (file)
index 0000000..6893181
--- /dev/null
+++ b/org.argeo.cms/src/org/argeo/cms/util/UserMenuLink.java
@@ -0,0 +1,82 @@
+package org.argeo.cms.util;
+
+import javax.jcr.Node;
+
+import org.argeo.cms.CmsMsg;
+import org.argeo.cms.CmsStyles;
+import org.argeo.cms.KernelHeader;
+import org.eclipse.swt.events.DisposeEvent;
+import org.eclipse.swt.events.DisposeListener;
+import org.eclipse.swt.events.MouseEvent;
+import org.eclipse.swt.events.MouseListener;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.springframework.security.core.context.SecurityContextHolder;
+
+/** Open the user menu when clicked */
+public class UserMenuLink extends MenuLink {
+
+       public UserMenuLink() {
+               setCustom(CmsStyles.CMS_USER_MENU_LINK);
+       }
+
+       @Override
+       public Control createUi(Composite parent, Node context) {
+               String username = SecurityContextHolder.getContext()
+                               .getAuthentication().getName();
+               if (username.equals(KernelHeader.USERNAME_ANONYMOUS))
+                       setLabel(CmsMsg.login.lead());
+               else
+                       setLabel(username);
+               Label link = (Label) ((Composite) super.createUi(parent, context))
+                               .getChildren()[0];
+               link.addMouseListener(new UserMenuLinkController());
+               return link.getParent();
+       }
+
+       protected UserMenu createUserMenu(Control source) {
+               return new UserMenu(source.getParent());
+       }
+
+       private class UserMenuLinkController implements MouseListener,
+                       DisposeListener {
+               private static final long serialVersionUID = 3634864186295639792L;
+
+               private UserMenu userMenu = null;
+               private long lastDisposeTS = 0l;
+
+               //
+               // MOUSE LISTENER
+               //
+               @Override
+               public void mouseDown(MouseEvent e) {
+                       if (e.button == 1) {
+                               Control source = (Control) e.getSource();
+                               if (userMenu == null) {
+                                       long durationSinceLastDispose = System.currentTimeMillis()
+                                                       - lastDisposeTS;
+                                       // avoid to reopen the menu, if one has clicked gain
+                                       if (durationSinceLastDispose > 200) {
+                                               userMenu = createUserMenu(source);
+                                               userMenu.addDisposeListener(this);
+                                       }
+                               }
+                       }
+               }
+
+               @Override
+               public void mouseDoubleClick(MouseEvent e) {
+               }
+
+               @Override
+               public void mouseUp(MouseEvent e) {
+               }
+
+               @Override
+               public void widgetDisposed(DisposeEvent event) {
+                       userMenu = null;
+                       lastDisposeTS = System.currentTimeMillis();
+               }
+       }
+}
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