X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms.jcr.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2FCmsUiProvider.java;fp=org.argeo.cms.jcr.ui%2Fsrc%2Forg%2Fargeo%2Fcms%2Fui%2FCmsUiProvider.java;h=5f2377be566f05a6ad618f1e30cea3c8e943b3e4;hb=bce03099b0d2f1758e7a3d74fba339d0200924d5;hp=0000000000000000000000000000000000000000;hpb=0ea2992e5f3803cd98b5981f27274faa922bc199;p=gpl%2Fargeo-jcr.git

diff --git a/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/CmsUiProvider.java b/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/CmsUiProvider.java
new file mode 100644
index 0000000..5f2377b
--- /dev/null
+++ b/org.argeo.cms.jcr.ui/src/org/argeo/cms/ui/CmsUiProvider.java
@@ -0,0 +1,51 @@
+package org.argeo.cms.ui;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+
+import org.argeo.api.acr.Content;
+import org.argeo.cms.jcr.acr.JcrContent;
+import org.argeo.cms.swt.acr.SwtUiProvider;
+import org.argeo.jcr.JcrException;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+/** Stateless factory building an SWT user interface given a JCR context. */
+public interface CmsUiProvider extends SwtUiProvider {
+	/**
+	 * Initialises a user interface.
+	 * 
+	 * @param parent  the parent composite
+	 * @param context a context node (holding the JCR underlying session), or null
+	 */
+	default Control createUi(Composite parent, Node context) throws RepositoryException {
+		// does nothing by default
+		return null;
+	}
+
+	default Control createUiPart(Composite parent, Node context) {
+		try {
+			return createUi(parent, context);
+		} catch (RepositoryException e) {
+			throw new JcrException("Cannot create UI for context " + context, e);
+		}
+	}
+
+	@Override
+	default Control createUiPart(Composite parent, Content context) {
+		if (context == null)
+			return createUiPart(parent, (Node) null);
+		if (context instanceof JcrContent) {
+			Node node = ((JcrContent) context).getJcrNode();
+			return createUiPart(parent, node);
+		} else {
+//			CmsLog.getLog(CmsUiProvider.class)
+//					.warn("In " + getClass() + ", content " + context + " is not compatible with JCR.");
+//			return createUiPart(parent, (Node) null);
+
+			throw new IllegalArgumentException(
+					"In " + getClass() + ", content " + context + " is not compatible with JCR");
+		}
+	}
+
+}