エラーメッセージコントロールの拡張

<?xml version="1.0" encoding="UTF-8"?>
<xp:view xmlns:xp="http://www.ibm.com/xsp/core">
 <xp:this.beforeRenderResponse>
  <![CDATA[#{javascript:function addChildrenClientIds(component:javax.faces.component.UIComponentBase, clientIds:java.util.ArrayList) {
 try {
  var children = component.getChildren();
   
  for (var child in children) {
   clientIds.add(child.getClientId(facesContext));
   if (child.getChildCount() > 0) {
    addChildrenClientIds(child, clientIds);
   }
  }
 } catch (e) {
  /*Debug.logException(e);*/
 }
}
 
try {
 var messageObjects = [];
 var messageClientIds = facesContext.getClientIdsWithMessages(); 
  
 // There are messages for components - Get client ids in sorted order
 if (messageClientIds.hasNext()) {
  var clientIds = new java.util.ArrayList();
  addChildrenClientIds(view, clientIds);
 }
  
 // Used to keep track of which messages are for components
 var componentMessages = new java.util.ArrayList();
  
 while (messageClientIds.hasNext()) {
  var clientId = messageClientIds.next();
  if( !clientId ){ continue; }
   
  var component = view.findComponent( clientId.replace( view.getClientId( facesContext ), '').replace( /\:\d*\:/g, ':') );
  if (!component) { continue; }
   
  // Fetch messages for component
  var message = '',
  messages = facesContext.getMessages( clientId );
  while (messages.hasNext()) {
   var messageItem = messages.next();
   message += (message) ? ', ' : '' + messageItem.getSummary();
    
   componentMessages.push( messageItem );
  }
   
  // If component has label - fetch
  var labelComponent = getLabelFor(component);
  var label = (labelComponent) ? labelComponent.getValue() : '';
  if (!label && component) {
   var id = component.getId();
   if (id.indexOf('_') > 0) {
    label = id;
   }
  }
   
  if (label && label.indexOf(':') === -1) {
   label += ':';
  }
   
  messageObjects.push({
   index : clientIds.indexOf(clientId),
   clientId : clientId,
   label : label,
   message : message
  });
 }
  
 // Sort message object by the order of the components in the page
 messageObjects.sort(function (a, b) {
  if (a.index > b.index) { return 1; }
  if (a.index < b.index) { return -1; }
  return 0;
 });
  
 // Add all (if any) system messages at the top
 var allMessages = facesContext.getMessages();
 while( allMessages.hasNext() ){
  messageItem = allMessages.next();  
  if( !componentMessages.contains( messageItem ) ){   
   messageObjects.unshift({ message: messageItem.getSummary() });
  }
 }
  
 viewScope.messageObjects = messageObjects;
} catch (e) { 
 /*Debug.logException(e);*/
}
}]]></xp:this.beforeRenderResponse>
 <xp:scriptBlock>
  <xp:this.value><![CDATA[var EMessages = {
 // Set focus to field
 setFocus: function( clientId ){
  var matchingFields = dojo.query('[name=' + clientId + ']');
  if( matchingFields.length > 0 ){
   if( dijit && dijit.registry ){
    this.showDojoTabWithField( clientId );
   }
   var field = matchingFields[0]
   field.focus();
   dojo.animateProperty({
    duration: 800,
    node: field,
    properties: {
     backgroundColor: {
      start: '#FFFFEE',
      end: dojo.style( field, 'backgroundColor' )
     }
    }
   }).play();
  }
  return false;
 },
  
 // If field is inside a dijit TabContainer - activate
 showDojoTabWithField: function( clientId ){
  dijit.registry.byClass("dijit.layout.TabContainer").forEach(function( tabContainer ){
   dojo.forEach( tabContainer.getChildren(), function( containerPane ){
    if( dojo.query( containerPane.containerNode ).query( '[name=' + clientId + ']' ).length > 0 ){
     tabContainer.selectChild( containerPane );
    }
   });
  });
 }
}]]></xp:this.value>
 </xp:scriptBlock>
 <xp:repeat id="messageRepeat" styleClass="xspMessage" rows="30" value="#{viewScope.messageObjects}" var="messageObject">
  <xp:this.rendered><![CDATA[#{javascript:return ( viewScope.messageObjects && viewScope.messageObjects.length > 0 ); }]]></xp:this.rendered>
  <xp:this.facets>
   <xp:text xp:key="header" escape="false">
    <xp:this.value><![CDATA[<ul>]]></xp:this.value>
   </xp:text>
   <xp:text xp:key="footer" escape="false">
    <xp:this.value><![CDATA[</ul>]]></xp:this.value>
   </xp:text>
  </xp:this.facets>
  <li>
   <xp:panel rendered="#{!empty(messageObject.clientId)}">
    <a href="#" onclick="return EMessages.setFocus( '#{messageObject.clientId}');">
     <xp:text escape="false">
      <xp:this.value><![CDATA[#{javascript:return (messageObject.label) ? messageObject.label : messageObject.message;
}]]></xp:this.value>
     </xp:text>
    </a>
   </xp:panel>
   <xp:text value="#{messageObject.message}" rendered="#{javascript:return (messageObject.label != '');}" />
  </li>
 </xp:repeat>
</xp:view>

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