From 795c40d169e4b16ceaae51a95eaf92a61dfe33ac Mon Sep 17 00:00:00 2001
From: jmillman <jmillman@basistech.com>
Date: Mon, 23 May 2016 12:54:39 -0400
Subject: [PATCH] maintain selection when the table contents change

---
 .../autopsy/timeline/ui/listvew/ListTimeline.java     | 11 +++++++++++
 .../autopsy/timeline/ui/listvew/ListViewPane.java     |  9 +++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListTimeline.java b/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListTimeline.java
index 77fc831b29..93ca0914a8 100644
--- a/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListTimeline.java
+++ b/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListTimeline.java
@@ -149,6 +149,10 @@ class ListTimeline extends BorderPane {
         table.getItems().clear();
     }
 
+    Long getSelectedEventID() {
+        return table.getSelectionModel().getSelectedItem();
+    }
+
     /**
      * Set the Collection of events (by ID) to show in the table.
      *
@@ -169,6 +173,13 @@ class ListTimeline extends BorderPane {
         return table.getSelectionModel().getSelectedItems();
     }
 
+    void selectEventID(Long selectedEventID) {
+        //restore selection.
+        table.scrollTo(selectedEventID);
+        table.getSelectionModel().select(selectedEventID);
+        table.requestFocus();
+    }
+
     /**
      * TableCell to show the icon for the type of an event.
      */
diff --git a/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListViewPane.java b/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListViewPane.java
index 23278f0d86..09b129ed78 100644
--- a/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListViewPane.java
+++ b/Core/src/org/sleuthkit/autopsy/timeline/ui/listvew/ListViewPane.java
@@ -73,7 +73,7 @@ public class ListViewPane extends AbstractTimeLineView {
 
     @Override
     protected void clearData() {
-        listChart.clear();
+
     }
 
     private static class ListViewSettingsPane extends Parent {
@@ -96,13 +96,18 @@ public class ListViewPane extends AbstractTimeLineView {
             }
             FilteredEventsModel eventsModel = getEventsModel();
 
+            Long selectedEventID = listChart.getSelectedEventID();
+
             //clear the chart and set the horixontal axis
             resetView(eventsModel.getTimeRange());
 
             updateMessage("Querying db for events");
             //get the event stripes to be displayed
             List<Long> eventIDs = eventsModel.getEventIDs();
-            Platform.runLater(() -> listChart.setEventIDs(eventIDs));
+            Platform.runLater(() -> {
+                listChart.setEventIDs(eventIDs);
+                listChart.selectEventID(selectedEventID);
+            });
 
             updateMessage("updating ui");
             return eventIDs.isEmpty() == false;