Patch to ZeroClipboard v1.1.7 to support css zoom

zeroclipboard_patch.diff

--- zeroclipboard-rails/app/assets/javascripts/zeroclipboard/ZeroClipboard.js   2013-11-10 10:04:08.968800717 +0000
+++ zeroclipboard/ZeroClipboard.js      2013-11-10 10:04:20.840117981 +0000
@@ -20,17 +20,6 @@
     }
     return y;
   };
-  var _getZoom = function(obj) {
-    var zoom = 1;
-    if(RegExp(' AppleWebKit/').test(navigator.userAgent)){
-    while(obj)
-    {
-        zoom = zoom * _getStyle(obj,'zoom');
-        obj = obj.offsetParent;
-    }
-    }
-    return zoom;
-  };
   var _elementMouseOver = function(event) {
     if (!ZeroClipboard.prototype._singleton) return;
     if (!event) {
@@ -116,19 +105,6 @@
     if (zi && zi != "auto") {
       info.zIndex = parseInt(zi, 10);
     }
-    if (typeof obj.getBoundingClientRect !== "undefined") {
-      var rect = obj.getBoundingClientRect();
-      var pageXOffset = window.pageXOffset || document.documentElement.scrollLeft || 0;
-      var pageYOffset = window.pageYOffset || document.documentElement.scrollTop || 0;
-      var leftBorderWidth = document.documentElement.clientLeft || 0;
-      var topBorderWidth = document.documentElement.clientTop || 0;
-      var zoom = _getZoom(obj);
-      info.width = rect.width * zoom;
-      info.height = rect.height * zoom;
-      info.left = (rect.left + pageXOffset - leftBorderWidth) * zoom;
-      info.top = (rect.top + pageYOffset - topBorderWidth) * zoom;
-      return info;
-    }
     while (obj) {
       var borderLeftWidth = parseInt(_getStyle(obj, "borderLeftWidth"), 10);
       var borderTopWidth = parseInt(_getStyle(obj, "borderTopWidth"), 10);