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diff --git a/plugins/views/documentation/org.eclipse.papyrus.documentation.view/src/org/eclipse/papyrus/documentation/view/ExternalResourceEditorInput.java b/plugins/views/documentation/org.eclipse.papyrus.documentation.view/src/org/eclipse/papyrus/documentation/view/ExternalResourceEditorInput.java
new file mode 100644
index 00000000000..3896cd710ac
--- /dev/null
+++ b/plugins/views/documentation/org.eclipse.papyrus.documentation.view/src/org/eclipse/papyrus/documentation/view/ExternalResourceEditorInput.java
@@ -0,0 +1,200 @@
+/*******************************************************************************
+ * Copyright (c) 2005 AIRBUS FRANCE.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    David Sciamma (Anyware Technologies), 
+ *    Mathieu Garcia (Anyware Technologies),
+ *    Jacques Lescot (Anyware Technologies),
+ *    Thomas Friol (Anyware Technologies)
+ *    - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.papyrus.documentation.view;
+
+import java.io.File;
+
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Platform;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.ui.IPathEditorInput;
+import org.eclipse.ui.IPersistableElement;
+import org.eclipse.ui.editors.text.ILocationProvider;
+import org.eclipse.ui.model.IWorkbenchAdapter;
+
+/**
+ * A class defining an editor input in order to be able to visualize external
+ * resources in eclipse editors.</br> This class has been copied from
+ * org.eclipse.ui.internal.editors.text.JavaFileEditorInput.<br/> Creation : 11
+ * oct. 2005
+ * 
+ * @author <a href="mailto:thomas.friol@anyware-tech.com">Thomas FRIOL</a>
+ */
+public class ExternalResourceEditorInput implements IPathEditorInput, ILocationProvider
+{
+
+    /**
+     * The workbench adapter which simply provides the label.
+     * 
+     * @since 3.1
+     */
+    private class WorkbenchAdapter implements IWorkbenchAdapter
+    {
+        /*
+         * @see org.eclipse.ui.model.IWorkbenchAdapter#getChildren(java.lang.Object)
+         */
+        public Object[] getChildren(Object o)
+        {
+            return null;
+        }
+
+        /*
+         * @see org.eclipse.ui.model.IWorkbenchAdapter#getImageDescriptor(java.lang.Object)
+         */
+        public ImageDescriptor getImageDescriptor(Object object)
+        {
+            return null;
+        }
+
+        /*
+         * @see org.eclipse.ui.model.IWorkbenchAdapter#getLabel(java.lang.Object)
+         */
+        public String getLabel(Object o)
+        {
+            return ((ExternalResourceEditorInput) o).getName();
+        }
+
+        /*
+         * @see org.eclipse.ui.model.IWorkbenchAdapter#getParent(java.lang.Object)
+         */
+        public Object getParent(Object o)
+        {
+            return null;
+        }
+    }
+
+    private File fFile;
+
+    private WorkbenchAdapter fWorkbenchAdapter = new WorkbenchAdapter();
+
+    public ExternalResourceEditorInput(File file)
+    {
+        super();
+        fFile = file;
+        fWorkbenchAdapter = new WorkbenchAdapter();
+    }
+
+    /*
+     * @see org.eclipse.ui.IEditorInput#exists()
+     */
+    public boolean exists()
+    {
+        return fFile.exists();
+    }
+
+    /*
+     * @see org.eclipse.ui.IEditorInput#getImageDescriptor()
+     */
+    public ImageDescriptor getImageDescriptor()
+    {
+        return null;
+    }
+
+    /*
+     * @see org.eclipse.ui.IEditorInput#getName()
+     */
+    public String getName()
+    {
+        return fFile.getName();
+    }
+
+    /*
+     * @see org.eclipse.ui.IEditorInput#getPersistable()
+     */
+    public IPersistableElement getPersistable()
+    {
+        return null;
+    }
+
+    /*
+     * @see org.eclipse.ui.IEditorInput#getToolTipText()
+     */
+    public String getToolTipText()
+    {
+        return fFile.getAbsolutePath();
+    }
+
+    /*
+     * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
+     */
+    public Object getAdapter(Class adapter)
+    {
+        if (ILocationProvider.class.equals(adapter))
+        {
+            return this;
+        }
+        if (IWorkbenchAdapter.class.equals(adapter))
+        {
+            return fWorkbenchAdapter;
+        }
+        return Platform.getAdapterManager().getAdapter(this, adapter);
+    }
+
+    /*
+     * @see org.eclipse.ui.editors.text.ILocationProvider#getPath(java.lang.Object)
+     */
+    public IPath getPath(Object element)
+    {
+        if (element instanceof ExternalResourceEditorInput)
+        {
+            ExternalResourceEditorInput input = (ExternalResourceEditorInput) element;
+            return Path.fromOSString(input.fFile.getAbsolutePath());
+        }
+        return null;
+    }
+
+    /*
+     * @see org.eclipse.ui.IPathEditorInput#getPath()
+     * @since 3.1
+     */
+    public IPath getPath()
+    {
+        return Path.fromOSString(fFile.getAbsolutePath());
+    }
+
+    /*
+     * @see java.lang.Object#equals(java.lang.Object)
+     */
+    public boolean equals(Object o)
+    {
+        if (o == this)
+        {
+            return true;
+        }
+
+        if (o instanceof ExternalResourceEditorInput)
+        {
+            ExternalResourceEditorInput input = (ExternalResourceEditorInput) o;
+            return fFile.equals(input.fFile);
+        }
+
+        if (o instanceof IPathEditorInput)
+        {
+            IPathEditorInput input = (IPathEditorInput) o;
+            return getPath().equals(input.getPath());
+        }
+
+        return false;
+    }
+
+    /*
+     * @see java.lang.Object#hashCode()
+     */
+    public int hashCode()
+    {
+        return fFile.hashCode();
+    }
+}