X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=publishing%2Forg.argeo.publishing.ui%2Fsrc%2Forg%2Fargeo%2Fdocbook%2FDbkUtils.java;h=6db73d0e5b8a28b525f00c6fac789a9a3b00ce4d;hb=e3e0118b40d4036ef9739d12c7811922d375d46e;hp=6bcecb7b3e9fec2d3efa61161f8d94acffe57210;hpb=34148928e47a56bde06635334fb06d4d5bb70d50;p=gpl%2Fargeo-suite.git

diff --git a/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java b/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java
index 6bcecb7..6db73d0 100644
--- a/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java
+++ b/publishing/org.argeo.publishing.ui/src/org/argeo/docbook/DbkUtils.java
@@ -53,6 +53,16 @@ public class DbkUtils {
 		return Jcr.getName(node).equals(type.get());
 	}
 
+	/** Whether this node is a DocBook type. */
+	public static boolean isDbk(Node node) {
+		String name = Jcr.getName(node);
+		for (DbkType type : DbkType.values()) {
+			if (name.equals(type.get()))
+				return true;
+		}
+		return false;
+	}
+
 	public static String getTitle(Node node) {
 		return JcrxApi.getXmlValue(node, DbkType.title.get());
 	}
@@ -96,6 +106,38 @@ public class DbkUtils {
 		return p;
 	}
 
+	/**
+	 * Removes a paragraph if it empty. The sesison is not saved.
+	 * 
+	 * @return true if the paragraph was empty and it was removed
+	 */
+	public static boolean removeIfEmptyParagraph(Node node) {
+		try {
+			if (isDbk(node, DbkType.para)) {
+				NodeIterator nit = node.getNodes();
+				if (!nit.hasNext()) {
+					node.remove();
+					return true;
+				}
+				Node first = nit.nextNode();
+				if (nit.hasNext())
+					return false;
+				if (first.getName().equals(Jcr.JCR_XMLTEXT)) {
+					String str = JcrxApi.getXmlValue(first);
+					if (str != null && str.trim().equals("")) {
+						node.remove();
+						return true;
+					}
+				} else {
+					return false;
+				}
+			}
+			return false;
+		} catch (RepositoryException e) {
+			throw new JcrException("Cannot remove possibly empty paragraph", e);
+		}
+	}
+
 	public static Node insertImageAfter(Node sibling) {
 		try {