From 586de698942ca90d60dfc5d848fd304c8add1a5f Mon Sep 17 00:00:00 2001
From: Daniel Compton <desk@danielcompton.net>
Date: Thu, 19 Oct 2017 16:14:19 +1300
Subject: [PATCH] Use CSS pseudo-selectors for odd/even instead of calculating
 an index

---
 resources/day8/re_frame/trace/main.css  | 3 +--
 resources/day8/re_frame/trace/main.less | 3 +--
 src/day8/re_frame/trace.cljs            | 5 +----
 3 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/resources/day8/re_frame/trace/main.css b/resources/day8/re_frame/trace/main.css
index 1824e41..0bbd9d8 100644
--- a/resources/day8/re_frame/trace/main.css
+++ b/resources/day8/re_frame/trace/main.css
@@ -192,8 +192,7 @@
 #--re-frame-trace-- tr th:first-child {
   text-align: right;
 }
-#--re-frame-trace-- tr.trace--trace-even,
-#--re-frame-trace-- tr.trace--trace-even + .trace--details {
+#--re-frame-trace-- tr:nth-child(even) {
   background: #fafafa;
 }
 #--re-frame-trace-- tr.trace--sub-create .trace--op {
diff --git a/resources/day8/re_frame/trace/main.less b/resources/day8/re_frame/trace/main.less
index 2a5c593..571e513 100644
--- a/resources/day8/re_frame/trace/main.less
+++ b/resources/day8/re_frame/trace/main.less
@@ -258,8 +258,7 @@
     &.trace--trace {
     }
 
-    &.trace--trace-even,
-    &.trace--trace-even + .trace--details {
+    &:nth-child(even) {
       background: @background-gray-hint;
     }
 
diff --git a/src/day8/re_frame/trace.cljs b/src/day8/re_frame/trace.cljs
index 3c7efa4..cb9ad0f 100644
--- a/src/day8/re_frame/trace.cljs
+++ b/src/day8/re_frame/trace.cljs
@@ -183,10 +183,7 @@
                                                          :event "trace--event"
                                                          :render "trace--render"
                                                          :re-frame.router/fsm-trigger "trace--fsm-trigger"
-                                                         nil)
-                                                        (if (even? index)
-                                                          "trace--trace-even"
-                                                          "trace--trace-odd")])}
+                                                         nil)])}
 
                              [:td.trace--toggle
                               [:button (if show-row? "▼" "▶")]]