From c80fc7bd56a8f52780d06e304baa0a3d601b5b16 Mon Sep 17 00:00:00 2001
From: Juan Hoyos <juan.hoyosr@gmail.com>
Date: Fri, 22 Feb 2013 17:40:47 -0500
Subject: [PATCH 1/3] Allow scrollable viewports different from window

Conflicts:
	jquery.appear.js
---
 jquery.appear.js | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/jquery.appear.js b/jquery.appear.js
index 2970bf7..31919d7 100644
--- a/jquery.appear.js
+++ b/jquery.appear.js
@@ -15,10 +15,12 @@
   var check_lock = false;
   var defaults = {
     interval: 250,
-    force_appear: false
+    force_appear: false,
+    viewport: window
   }
   var $window = $(window);
   var $document = $(document);
+  var $viewport = $(defaults.viewport);
 
   var $prior_appeared;
 
@@ -46,16 +48,16 @@
       return false;
     }
 
-    var window_left = $window.scrollLeft();
-    var window_top = $window.scrollTop();
+    var window_left = $viewport.scrollLeft();
+    var window_top = $viewport.scrollTop();
     var offset = $element.offset();
     var left = offset.left;
     var top = offset.top;
 
     if (top + $element.height() >= window_top &&
-        top - ($element.data('appear-top-offset') || 0) <= window_top + $window.height() &&
+        top - ($element.data('appear-top-offset') || 0) <= window_top + $viewport.height() &&
         left + $element.width() >= window_left &&
-        left - ($element.data('appear-left-offset') || 0) <= window_left + $window.width()) {
+        left - ($element.data('appear-left-offset') || 0) <= window_left + $viewport.width()) {
       return true;
     } else {
       return false;
@@ -76,7 +78,9 @@
           setTimeout(process, opts.interval);
         };
 
-        $(window).scroll(on_check).resize(on_check);
+        $viewport = $(opts.viewport);
+        $viewport.scroll(on_check);
+        $window.resize(on_check);
         check_binded = true;
       }
 

From 16fa6da8653e1090ceb54a4a6fa55a7371ab47dd Mon Sep 17 00:00:00 2001
From: Juan Hoyos <juan.hoyosr@gmail.com>
Date: Wed, 27 Feb 2013 16:21:42 -0500
Subject: [PATCH 2/3] Adjust trigger point of scrollable viewports

---
 jquery.appear.js | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/jquery.appear.js b/jquery.appear.js
index 31919d7..b8c3ad6 100644
--- a/jquery.appear.js
+++ b/jquery.appear.js
@@ -48,16 +48,19 @@
       return false;
     }
 
-    var window_left = $viewport.scrollLeft();
-    var window_top = $viewport.scrollTop();
+    var viewport_scroll_left = $viewport.scrollLeft();
+    var viewport_scroll_top = $viewport.scrollTop();
     var offset = $element.offset();
+    var viewport_offset = $viewport.offset();
+    var viewport_offset_left = viewport_offset.left || 0;
+    var viewport_offset_top = viewport_offset.top || 0;
     var left = offset.left;
     var top = offset.top;
 
-    if (top + $element.height() >= window_top &&
-        top - ($element.data('appear-top-offset') || 0) <= window_top + $viewport.height() &&
-        left + $element.width() >= window_left &&
-        left - ($element.data('appear-left-offset') || 0) <= window_left + $viewport.width()) {
+    if (top + $element.height() >= viewport_scroll_top &&
+        top - viewport_offset_top - ($element.data('appear-top-offset') || 0) <= viewport_scroll_top + $viewport.height() &&
+        left + $element.width() >= viewport_scroll_left &&
+        left - viewport_offset_left - ($element.data('appear-left-offset') || 0) <= viewport_scroll_left + $viewport.width()) {
       return true;
     } else {
       return false;

From 9559a53eebc359d2eb83d1a28cc08d7af452e9d9 Mon Sep 17 00:00:00 2001
From: Juan Hoyos <juan.hoyosr@gmail.com>
Date: Mon, 2 Dec 2013 15:07:53 -0500
Subject: [PATCH 3/3] Removed unused document reference

---
 jquery.appear.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/jquery.appear.js b/jquery.appear.js
index 1485b96..a7ca39c 100644
--- a/jquery.appear.js
+++ b/jquery.appear.js
@@ -19,7 +19,6 @@
     viewport: window
   }
   var $window = $(window);
-  var $document = $(document);
   var $viewport = $(defaults.viewport);
 
   var $prior_appeared;