Refuse to draw on a finished TranscriptScreen

It's not clear why we try to draw on a finished TranscriptScreen when
exiting on Honeycomb (and not on other platforms), but this works around
the resulting crash.

Signed-off-by: Jack Palevich <jackpal@google.com>

diff --git a/src/jackpal/androidterm/session/TranscriptScreen.java b/src/jackpal/androidterm/session/TranscriptScreen.java
index d109676..64bd2cf 100644 (file)
--- a/src/jackpal/androidterm/session/TranscriptScreen.java
+++ b/src/jackpal/androidterm/session/TranscriptScreen.java
@@ -178,6 +178,10 @@ public class TranscriptScreen implements Screen {
         } catch (IllegalArgumentException e) {
             // Out-of-bounds rows are blank.
             return;
+        } catch (NullPointerException e) {
+            // Attempt to draw on a finished transcript
+            // XXX Figure out why this happens on Honeycomb
+            return;
         }
         int defaultForeColor = mData.getDefaultForeColor();
         int defaultBackColor = mData.getDefaultBackColor();