From 5a062fcd8f867c753a46a7b67c1de478311b04fd Mon Sep 17 00:00:00 2001
From: John Beedell <j.beedell@open.ac.uk>
Date: Mon, 27 Jun 2011 16:19:47 +0100
Subject: [PATCH] MDL-27429 Adding tabindex and on keypress to the blocks
 show/hide icon.

---
 lib/javascript-static.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/javascript-static.js b/lib/javascript-static.js
index 5e06bc27f9d..ae098c234f1 100644
--- a/lib/javascript-static.js
+++ b/lib/javascript-static.js
@@ -617,10 +617,12 @@ M.util.init_block_hider = function(Y, config) {
                         t = b.one('.title'),
                         a = null;
                     if (t && (a = t.one('.block_action'))) {
-                        var hide = Y.Node.create('<img class="block-hider-hide" alt="'+config.tooltipVisible+'" title="'+config.tooltipVisible+'" />');
+                        var hide = Y.Node.create('<img class="block-hider-hide" tabindex="0" alt="'+config.tooltipVisible+'" title="'+config.tooltipVisible+'" />');
                         hide.setAttribute('src', this.get('iconVisible')).on('click', this.updateState, this, true);
-                        var show = Y.Node.create('<img class="block-hider-show" alt="'+config.tooltipHidden+'" title="'+config.tooltipHidden+'" />');
+                        hide.on('keypress', this.updateStateKey, this, true);
+                        var show = Y.Node.create('<img class="block-hider-show" tabindex="0" alt="'+config.tooltipHidden+'" title="'+config.tooltipHidden+'" />');
                         show.setAttribute('src', this.get('iconHidden')).on('click', this.updateState, this, false);
+                        show.on('keypress', this.updateStateKey, this, false);
                         a.insert(show, 0).insert(hide, 0);
                     }
                 },
@@ -631,6 +633,11 @@ M.util.init_block_hider = function(Y, config) {
                     } else {
                         this.get('block').removeClass('hidden');
                     }
+                },
+                updateStateKey : function(e, hide) {
+                    if (e.keyCode == 13) { //allow hide/show via enter key
+                        this.updateState(this, hide);
+                    }
                 }
             };
             Y.extend(blockhider, Y.Base, blockhider.prototype, {