From 99cdca46b7bcc46fe6affd9e9f9f60a546b2e5b8 Mon Sep 17 00:00:00 2001
From: Thomas Bruederli <thomas@roundcube.net>
Date: Thu, 05 Jun 2014 03:18:07 -0400
Subject: [PATCH] Merge branch 'dev-accessibility'

---
 program/js/common.js |   24 ++++++++++++++++++++++++
 1 files changed, 24 insertions(+), 0 deletions(-)

diff --git a/program/js/common.js b/program/js/common.js
index 48e8555..5ac4feb 100644
--- a/program/js/common.js
+++ b/program/js/common.js
@@ -281,6 +281,25 @@
   return false;
 },
 
+/**
+ * Determine whether the given event was trigered from keyboard
+ */
+is_keyboard: function(e)
+{
+  return e && (
+      (e.mozInputSource && e.mozInputSource == e.MOZ_SOURCE_KEYBOARD) ||
+      (!e.pageX && (e.pageY || 0) <= 0 && !e.clientX && (e.clientY || 0) <= 0)
+    );
+},
+
+/**
+ * Accept event if triggered from keyboard action (e.g. <Enter>)
+ */
+keyboard_only: function(e)
+{
+  return rcube_event.is_keyboard(e) ? true : rcube_event.cancel(e);
+},
+
 touchevent: function(e)
 {
   return { pageX:e.pageX, pageY:e.pageY, offsetX:e.pageX - e.target.offsetLeft, offsetY:e.pageY - e.target.offsetTop, target:e.target, istouch:true };
@@ -593,6 +612,11 @@
   };
 }
 
+// array utility function
+jQuery.last = function(arr) {
+  return arr && arr.length ? arr[arr.length-1] : undefined;
+}
+
 // jQuery plugin to emulate HTML5 placeholder attributes on input elements
 jQuery.fn.placeholder = function(text) {
   return this.each(function() {

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