refactory: added UI removed from core plugin.

[phpeclipse.git] / net.sourceforge.phpeclipse.ui / src / net / sourceforge / phpeclipse / xml / ui / internal / editor / XMLDocumentProvider.java

diff --git a/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/editor/XMLDocumentProvider.java b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/editor/XMLDocumentProvider.java
new file mode 100644 (file)
index 0000000..999fd08
--- /dev/null
+++ b/net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/xml/ui/internal/editor/XMLDocumentProvider.java
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2003-2004 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: XMLDocumentProvider.java,v 1.3 2006-10-21 23:14:14 pombredanne Exp $
+ */
+
+package net.sourceforge.phpeclipse.xml.ui.internal.editor;
+
+import java.net.MalformedURLException;
+
+import net.sourceforge.phpeclipse.xml.core.internal.model.XMLDocument;
+import net.sourceforge.phpeclipse.xml.core.model.IXMLDocument;
+
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IDocumentListener;
+import org.eclipse.ui.editors.text.TextFileDocumentProvider;
+
+/**
+ * Document provider for XML files.
+ * 
+ * TODO Merge the encoding detection support from I18NDocumentProvider and
+ * AbstractDocumentProvider into this class
+ * 
+ * TODO This class currently doubles as a model manager which will need to be
+ * moved into core at some point, and would make this class pretty much useless
+ */
+public class XMLDocumentProvider extends TextFileDocumentProvider {
+
+       // Inner Classes -----------------------------------------------------------
+
+       private class XMLFileInfo extends FileInfo {
+               IXMLDocument xmlDocument;
+       }
+
+       // TestFileDocumentProvider Implementation ---------------------------------
+
+       /*
+        * @see TextFileDocumentProvider#createEmptyFileInfo()
+        */
+       protected FileInfo createEmptyFileInfo() {
+               return new XMLFileInfo();
+       }
+
+       /*
+        * @see TextFileDocumentProvider#createFileInfo(Object)
+        */
+       protected FileInfo createFileInfo(Object element) throws CoreException {
+               FileInfo fileInfo = super.createFileInfo(element);
+               if (!(fileInfo instanceof XMLFileInfo)) {
+                       return null;
+               }
+
+               IDocument document = fileInfo.fTextFileBuffer.getDocument();
+
+               String systemId = null;
+               try {
+                       systemId = getSystemFile(fileInfo).toURL().toString();
+               } catch (MalformedURLException e) {
+               }
+
+               IXMLDocument xmlDocument = createModel(document, systemId);
+               if (xmlDocument instanceof IDocumentListener) {
+                       document.addDocumentListener((IDocumentListener) xmlDocument);
+               }
+
+               XMLFileInfo xmlFileInfo = (XMLFileInfo) fileInfo;
+               xmlFileInfo.xmlDocument = xmlDocument;
+
+               return xmlFileInfo;
+       }
+
+       /*
+        * @see TextFileDocumentProvider#disposeFileInfo(Object,
+        *      TextFileDocumentProvider.FileInfo)
+        */
+       protected void disposeFileInfo(Object element, FileInfo info) {
+               if (info instanceof XMLFileInfo) {
+                       IDocument document = getDocument(element);
+                       if (document != null) {
+                               IXMLDocument xmlDocument = ((XMLFileInfo) info).xmlDocument;
+                               if (xmlDocument instanceof IDocumentListener) {
+                                       document
+                                                       .removeDocumentListener((IDocumentListener) xmlDocument);
+                               }
+                       }
+               }
+
+               super.disposeFileInfo(element, info);
+       }
+
+       // Public Methods ----------------------------------------------------------
+
+       /**
+        * Creates the XML document model object corresponding to the specified
+        * document.
+        * 
+        * @param document
+        *            the document to parse
+        * @param systemId
+        *            the system ID of the document
+        * @return the document model object
+        */
+       public IXMLDocument createModel(IDocument document, String systemId) {
+               return new XMLDocument(document, systemId);
+       }
+
+       /**
+        * Returns the XML document model associated with the specified element.
+        * 
+        * @param element
+        *            the element
+        * @return the document model associated with the element
+        */
+       public IXMLDocument getModel(Object element) {
+               FileInfo info = getFileInfo(element);
+               if (info instanceof XMLFileInfo) {
+                       XMLFileInfo xmlFileInfo = (XMLFileInfo) info;
+                       return xmlFileInfo.xmlDocument;
+               }
+
+               return null;
+       }
+}