From 41a90bd55e8c12626012ce835958289663e5c82b Mon Sep 17 00:00:00 2001
From: gorhill <rhill@raymondhill.net>
Date: Sun, 14 Jun 2015 20:11:25 -0400
Subject: [PATCH] this fixes #345

---
 src/js/logger-ui.js | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/js/logger-ui.js b/src/js/logger-ui.js
index d34d49771..3246c9681 100644
--- a/src/js/logger-ui.js
+++ b/src/js/logger-ui.js
@@ -1534,14 +1534,25 @@ var toJunkyard = function(trs) {
 /******************************************************************************/
 
 var clearBuffer = function() {
+    var tabId = uDom.nodeFromId('pageSelector').value || null;
     var tbody = document.querySelector('#content tbody');
-    var tr;
-    while ( tbody.firstChild !== null ) {
-        tr = tbody.lastElementChild;
-        trJunkyard.push(tbody.removeChild(tr));
+    var tr = tbody.lastElementChild;
+    var trPrevious;
+    while ( tr !== null ) {
+        trPrevious = tr.previousElementSibling;
+        if ( tabId === null || tr.classList.contains(tabId) ) {
+            trJunkyard.push(tbody.removeChild(tr));
+        }
+        tr = trPrevious;
     }
-    uDom('#clear').addClass('disabled');
-    uDom('#clean').addClass('disabled');
+    uDom.nodeFromId('clear').classList.toggle(
+        'disabled',
+        tbody.childElementCount === 0
+    );
+    uDom.nodeFromId('clean').classList.toggle(
+        'disabled',
+        tbody.querySelector('tr.tab:not(.canMtx)') === null
+    );
 };
 
 /******************************************************************************/