package org.vaadin.jonatan.contexthelp.widgetset.client.ui;
   
   import com.google.gwt.core.client.Scheduler;
   import com.google.gwt.core.client.Scheduler.ScheduledCommand;
   import com.vaadin.client.ServerConnector;
   import com.vaadin.client.communication.RpcProxy;
   import com.vaadin.client.communication.StateChangeEvent;
   import com.vaadin.client.extensions.AbstractExtensionConnector;
   import com.vaadin.event.ShortcutAction;
  import com.vaadin.shared.ui.Connect;
  import org.vaadin.jonatan.contexthelp.ContextHelp;
  
  @Connect(ContextHelp.class)
  public class ContextHelpConnector extends AbstractExtensionConnector implements ContextHelpEvent.BubbleMovedHandler,
          ContextHelpEvent.BubbleHiddenHandler, ContextHelpEvent.BubbleShownHandler {
  
      ContextHelpServerRpc rpc = RpcProxy.create(ContextHelpServerRpc.class, this);
  
      VContextHelp contextHelp;
  
      @Override
      protected void extend(ServerConnector serverConnector) {
          if (contextHelp == null) {
              contextHelp = new VContextHelp(serverConnector.getConnection());
              contextHelp.addBubbleHiddenHandler(this);
              contextHelp.addBubbleMovedHandler(this);
              contextHelp.addBubbleShownHandler(this);
              contextHelp.setHidden(getState().hidden);
              contextHelp.setFollowFocus(getState().followFocus);
              contextHelp.setHelpKeyCode(getState().helpKey);
              contextHelp.setHideOnBlur(getState().hideOnBlur);
          }
      }
  
      @Override
      public ContextHelpState getState() {
          return (ContextHelpState) super.getState();
      }
  
      @Override
      public void onStateChanged(StateChangeEvent stateChangeEvent) {
          super.onStateChanged(stateChangeEvent);
          if (stateChangeEvent.hasPropertyChanged("hidden")) {
              contextHelp.setHidden(getState().hidden);
          } else if (stateChangeEvent.hasPropertyChanged("followFocus")) {
              contextHelp.setFollowFocus(getState().followFocus);
          } else if (stateChangeEvent.hasPropertyChanged("helpKey")) {
              contextHelp.setHelpKeyCode(getState().helpKey);
          } else if (stateChangeEvent.hasPropertyChanged("hideOnBlur")) {
              contextHelp.setHideOnBlur(getState().hideOnBlur);
          }
          if (!getState().hidden && getState().helpHTML != null) {
              showHelpBubbleDeferred();
          } else {
              contextHelp.hideHelpBubble();
          }
      }
  
      private void showHelpBubbleDeferred() {
          Scheduler.get().scheduleDeferred(new ScheduledCommand() {
              public void execute() {
                  contextHelp.showHelpBubble(getState().selectedComponentId,
                          getState().helpHTML, getState().placement);
              }
          });
      }
  
      @Override
      public void onBubbleHidden(ContextHelpEvent.BubbleHiddenEvent event) {
          if (!getState().hidden) {
              rpc.setHidden(true);
          }
      }
  
      @Override
      public void onBubbleMoved(ContextHelpEvent.BubbleMovedEvent event) {
          rpc.selectComponent(event.getComponentId());
      }
  
      @Override
      public void onBubbleShown(ContextHelpEvent.BubbleShownEvent event) {
          // TODO: do we need to do anything here?
      }
  
      // public void updateFromUIDL(final UIDL uidl, ApplicationConnection client)
      // {
      //
      // bubble.updateStyleNames(uidl.getStringAttribute("style"));
      //
      // final String helpText = uidl.getStringAttribute("helpText");
      // if (!hidden && helpText != null) {
      // Scheduler.get().scheduleDeferred(new ScheduledCommand() {
      // public void execute() {
      // Placement placement = Placement.DEFAULT;
      // if (uidl.hasAttribute("placement")) {
      // placement = Placement.valueOf(uidl
      // .getStringAttribute("placement"));
      // }
      // bubble.showHelpBubble(uidl, helpText, placement);
     // }
     // });
     // } else {
     // hidden = true;
     // if (bubble.isShowing()) {
     // bubble.hide();
     // }
     // updateServersideState(false);
     // }
     // }
 
 }