From e833d9c2e809772a169aa2a50a9e0a374d2b99ef Mon Sep 17 00:00:00 2001
From: Braden MacDonald <braden@opencraft.com>
Date: Thu, 5 Feb 2015 15:49:46 -0800
Subject: [PATCH] Accessibility improvements

---
 common/lib/capa/capa/templates/clarification.html     |  5 +++--
 common/lib/xmodule/xmodule/js/src/capa/display.coffee | 11 +++++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/common/lib/capa/capa/templates/clarification.html b/common/lib/capa/capa/templates/clarification.html
index e71de94ccd..6f730cfac5 100644
--- a/common/lib/capa/capa/templates/clarification.html
+++ b/common/lib/capa/capa/templates/clarification.html
@@ -1,4 +1,5 @@
-<span class="clarification">
-	<i data-tooltip="${clarification | h}" data-tooltip-show-on-click="true" class="fa fa-info-circle"></i>
+<span class="clarification" tabindex="0" role="note" aria-label="Clarification">
+    <i data-tooltip="${clarification | h}" data-tooltip-show-on-click="true"
+       class="fa fa-info-circle" aria-hidden="true"></i>
     <span class="sr">(${clarification})</span>
 </span>
diff --git a/common/lib/xmodule/xmodule/js/src/capa/display.coffee b/common/lib/xmodule/xmodule/js/src/capa/display.coffee
index 0ff252568a..fdaafd4c51 100644
--- a/common/lib/xmodule/xmodule/js/src/capa/display.coffee
+++ b/common/lib/xmodule/xmodule/js/src/capa/display.coffee
@@ -34,6 +34,17 @@ class @Problem
     @$('div.action input.reset').click @reset
     @$('div.action button.show').click @show
     @$('div.action input.save').click @save
+    # Accessibility helper for sighted keyboard users to show <clarification> tooltips on focus:
+    @$('.clarification').focus (ev) =>
+      icon = $(ev.target).children "i"
+      iconPos = icon.offset()
+      fakeEvent = jQuery.Event "mouseover", {
+        pageX: iconPos.left + icon.width()/2,
+        pageY: iconPos.top + icon.height()/2
+      }
+      icon.trigger(fakeEvent).trigger "click"
+    @$('.clarification').blur (ev) =>
+      $(ev.target).children("i").trigger "mouseout"
 
     @bindResetCorrectness()