refactory: added UI removed from core plugin.

[phpeclipse.git] / net.sourceforge.phpeclipse.ui / src / net / sourceforge / phpeclipse / xml / ui / internal / outline / XMLOutlineContentProvider.java

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/outline/XMLOutlineContentProvider.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/outline/XMLOutlineContentProvider.java
new file mode 100644 (file)
index 0000000..4484e94
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/outline/XMLOutlineContentProvider.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2004 Christopher Lenz and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     Christopher Lenz - initial API and implementation
+ * 
+ * $Id: XMLOutlineContentProvider.java,v 1.3 2006-10-21 23:14:14 pombredanne Exp $
+ */
+
+package net.sourceforge.phpeclipse.xml.ui.internal.outline;
+
+import net.sourceforge.phpeclipse.xml.core.model.IXMLDocument;
+import net.sourceforge.phpeclipse.xml.core.model.IXMLElement;
+
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+/**
+ * Content provider for the XML outline page.
+ */
+public class XMLOutlineContentProvider implements ITreeContentProvider {
+
+       // Instance Variables ------------------------------------------------------
+
+       /**
+        * The parsed XML document.
+        */
+       private IXMLDocument document;
+
+       // ITreeContentProvider Implementation -------------------------------------
+
+       /*
+        * ITreeContentProvider#getChildren(Object)
+        */
+       public Object[] getChildren(Object parentElement) {
+               if (parentElement instanceof IXMLElement) {
+                       return ((IXMLElement) parentElement).getChildren();
+               }
+               return new Object[0];
+       }
+
+       /*
+        * @see ITreeContentProvider#getParent(Object)
+        */
+       public Object getParent(Object element) {
+               if (element instanceof IXMLElement) {
+                       return ((IXMLElement) element).getParent();
+               }
+               return null;
+       }
+
+       /*
+        * @see ITreeContentProvider#hasChildren(Object)
+        */
+       public boolean hasChildren(Object element) {
+               return getChildren(element).length > 0;
+       }
+
+       /*
+        * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(Object)
+        */
+       public Object[] getElements(Object inputElement) {
+               if ((document != null) && (document.getRoot() != null)) {
+                       return new Object[] { document.getRoot() };
+               }
+               return new Object[0];
+       }
+
+       /*
+        * @see org.eclipse.jface.viewers.IContentProvider#dispose()
+        */
+       public void dispose() {
+               document = null;
+       }
+
+       /*
+        * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(Viewer,
+        *      Object, Object)
+        */
+       public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+               if (oldInput != newInput) {
+                       if (oldInput instanceof IXMLDocument) {
+                               document = null;
+                       }
+                       if (newInput instanceof IXMLDocument) {
+                               document = (IXMLDocument) newInput;
+                       }
+               }
+       }
+
+}