### Eclipse Workspace Patch 1.0
#P org.eclipse.mylyn.tasks.ui
Index: src/org/eclipse/mylyn/internal/tasks/ui/editors/RichTextEditor.java
===================================================================
RCS file: /cvsroot/tools/org.eclipse.mylyn/org.eclipse.mylyn.tasks.ui/src/org/eclipse/mylyn/internal/tasks/ui/editors/RichTextEditor.java,v
retrieving revision 1.4
diff -u -r1.4 RichTextEditor.java
--- src/org/eclipse/mylyn/internal/tasks/ui/editors/RichTextEditor.java	24 Jul 2009 12:05:45 -0000	1.4
+++ src/org/eclipse/mylyn/internal/tasks/ui/editors/RichTextEditor.java	11 Aug 2009 23:01:22 -0000
@@ -43,6 +43,8 @@
 import org.eclipse.swt.events.FocusAdapter;
 import org.eclipse.swt.events.FocusEvent;
 import org.eclipse.swt.events.FocusListener;
+import org.eclipse.swt.events.MouseAdapter;
+import org.eclipse.swt.events.MouseEvent;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.widgets.Composite;
@@ -131,6 +133,8 @@
 
 	private String text;
 
+	private boolean stickyPreview = false;
+
 	public RichTextEditor(TaskRepository repository, int style) {
 		this(repository, style, null, null);
 	}
@@ -239,9 +243,22 @@
 							unsetContext();
 						}
 					});
+					editorViewer.getTextWidget().addFocusListener(new FocusAdapter() {
+						@Override
+						public void focusLost(FocusEvent e) {
+							super.focusLost(e);
+							if (!stickyPreview) {
+								showPreview(false);
+							}
+						}
+					});
 				}
 				configure(editorViewer, new Document(getText()), isReadOnly());
-				show(editorViewer);
+				if (getPreviewViewer() != null) {
+					show(getPreviewViewer());
+				} else {
+					show(editorViewer);
+				}
 			} else {
 				defaultViewer = createDefaultEditor(editorComposite, style);
 				configure(defaultViewer, new Document(getText()), isReadOnly());
@@ -332,6 +349,17 @@
 				previewViewerStyle |= SWT.V_SCROLL;
 			}
 			previewViewer = extension.createViewer(repository, editorComposite, previewViewerStyle);
+			previewViewer.getTextWidget().addMouseListener(new MouseAdapter() {
+				@Override
+				public void mouseUp(MouseEvent e) {
+					super.mouseUp(e);
+					if (!stickyPreview) {
+						int offset = previewViewer.getTextWidget().getCaretOffset();
+						showEditor();
+						editorViewer.getTextWidget().setCaretOffset(offset);
+					}
+				}
+			});
 			configure(previewViewer, new Document(getText()), true);
 			// adapt maximize action
 			previewViewer.getControl().setData(EditorUtil.KEY_TOGGLE_TO_MAXIMIZE_ACTION,
@@ -530,17 +558,23 @@
 	public void showEditor() {
 		if (getEditorViewer() != null) {
 			show(getEditorViewer());
+			stickyPreview = false;
 		} else {
 			show(getDefaultViewer());
 		}
 	}
 
-	public void showPreview() {
+	private void showPreview(boolean sticky) {
 		if (!isReadOnly()) {
 			show(getPreviewViewer());
+			stickyPreview = sticky;
 		}
 	}
 
+	public void showPreview() {
+		showPreview(true);
+	}
+
 	private void unsetContext() {
 		if (contextService == null) {
 			return;