OGP tags support (http://ogp.me/)

git-svn-id: https://svn.argeo.org/commons/trunk@8549 4cfe0d0a-d680-48aa-b62c-e0a02a3f76cc

diff --git a/org.argeo.cms/src/org/argeo/cms/AbstractCmsEntryPoint.java b/org.argeo.cms/src/org/argeo/cms/AbstractCmsEntryPoint.java
index c101c021f134bc36602a0dc93b1a6da661ac4039..bdfca6203fe6ff1166cf8bb1261d84ca1fc2addf 100644 (file)
--- a/org.argeo.cms/src/org/argeo/cms/AbstractCmsEntryPoint.java
+++ b/org.argeo.cms/src/org/argeo/cms/AbstractCmsEntryPoint.java
@@ -5,6 +5,7 @@ import java.util.HashMap;
 import java.util.Map;
 
 import javax.jcr.Node;
+import javax.jcr.NodeIterator;
 import javax.jcr.Property;
 import javax.jcr.Repository;
 import javax.jcr.RepositoryException;
@@ -14,13 +15,13 @@ import javax.security.auth.Subject;
 import javax.security.auth.login.CredentialNotFoundException;
 import javax.security.auth.login.LoginContext;
 import javax.security.auth.login.LoginException;
+import javax.servlet.http.HttpServletRequest;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.argeo.ArgeoException;
 import org.argeo.cms.auth.AuthConstants;
 import org.argeo.cms.auth.HttpRequestCallbackHandler;
-import org.argeo.cms.ui.UxContext;
 import org.argeo.eclipse.ui.specific.UiContext;
 import org.argeo.jcr.JcrUtils;
 import org.eclipse.rap.rwt.RWT;
@@ -233,18 +234,6 @@ public abstract class AbstractCmsEntryPoint extends AbstractEntryPoint
                });
        }
 
-       // @Override
-       // public Object local(Msg msg) {
-       // String key = msg.getId();
-       // int lastDot = key.lastIndexOf('.');
-       // String className = key.substring(0, lastDot);
-       // String fieldName = key.substring(lastDot + 1);
-       // Locale locale = RWT.getLocale();
-       // ResourceBundle rb = ResourceBundle.getBundle(className, locale,
-       // msg.getClassLoader());
-       // return rb.getString(fieldName);
-       // }
-
        /** Sets the state of the entry point and retrieve the related JCR node. */
        protected synchronized String setState(String newState) {
                String previousState = this.state;
@@ -284,7 +273,39 @@ public abstract class AbstractCmsEntryPoint extends AbstractEntryPoint
                                                + " - " + getBaseTitle();
                        else
                                title = getBaseTitle();
-                       jsExecutor.execute("document.title = \"" + title + "\"");
+
+                       HttpServletRequest request = RWT.getRequest();
+                       String url = request.getRequestURL().append('!')
+                                       .append(node.getPath()).toString();
+                       String imgUrl = null;
+                       for (NodeIterator it = node.getNodes(); it.hasNext();) {
+                               Node child = it.nextNode();
+                               if (child.isNodeType(CmsTypes.CMS_IMAGE))
+                                       imgUrl = request
+                                                       .getRequestURL()
+                                                       .append("data/public/node/")
+                                                       .append(child.getSession().getWorkspace().getName())
+                                                       .append(child.getPath()).toString();
+                       }
+
+                       StringBuilder js = new StringBuilder();
+                       js.append("document.title = '" + title + "';");
+                       js.append("var metas = document.getElementsByTagName('meta');");
+                       js.append("for (var i=0; i<metas.length; i++) {");
+                       js.append("     if (metas[i].getAttribute('property'))");
+                       js.append("      if(metas[i].getAttribute('property')=='og:title')");
+                       js.append("       metas[i].setAttribute('content','" + title + "');");
+                       js.append("      else if(metas[i].getAttribute('property')=='og:url')");
+                       js.append("       metas[i].setAttribute('content','" + url + "');");
+                       if (imgUrl != null) {
+                               js.append("      else if(metas[i].getAttribute('property')=='og:image')");
+                               js.append("       metas[i].setAttribute('content','" + imgUrl
+                                               + "');");
+                       } else {
+                               // TODO reset default image
+                       }
+                       js.append("     };");
+                       jsExecutor.execute(js.toString());
 
                        if (log.isTraceEnabled())
                                log.trace("node=" + node + ", state=" + state + " (page="