Ticket #3804: 3804_2.patch

_source/plugins/floatpanel/plugin.js

@@ -112 +112 @@
                                         position = offsetParent.getDocumentPosition( element.getDocument() ),
                                         rtl = this._.dir == 'rtl';
 
+                                if ( window.console ) console.log( 'x=', position.x, ', y=', position.y );
+
                                 var left        = position.x + ( offsetX || 0 ),
                                         top             = position.y + ( offsetY || 0 );
 

_source/core/dom/element.js

@@ -1099 +1099 @@
                 getDocumentPosition : function( refDocument )
                 {
                         var x = 0, y = 0,
-                                body = this.getDocument().getBody();
+                                body = this.getDocument().getBody(),
+                                quirks = this.getDocument().$.compatMode == 'BackCompat';
 
                         if ( document.documentElement[ "getBoundingClientRect" ] )
                         {
                                 var box  = this.$.getBoundingClientRect(),
-                                        doc = this.getDocument().$,
-                                        docElem = doc.documentElement,
-                                        clientTop = docElem.clientTop || body.$.clientTop || 0,
-                                        clientLeft = docElem.clientLeft || body.$.clientLeft || 0;
+                                        doc = this.getDocument(),
+                                        $doc = doc.$,
+                                        $docElem = $doc.documentElement,
+                                        inDocElem = doc.getDocumentElement().contains( this ),
+                                        inBody = doc.getBody().contains( this ),
+                                        clientTop = inDocElem && $docElem.clientTop || inBody && body.$.clientTop || 0,
+                                        clientLeft = inDocElem && $docElem.clientLeft || inBody && body.$.clientLeft || 0;
 
-                                x = box.left + ( !CKEDITOR.env.quirks && docElem.scrollLeft || body.$.scrollLeft );
+                                x = box.left + ( !quirks && inDocElem && $docElem.scrollLeft || inBody && body.$.scrollLeft );
                                 x -= clientLeft;
-                                y = box.top  + ( !CKEDITOR.env.quirks && docElem.scrollTop || body.$.scrollTop );
+                                y = box.top  + ( !quirks && inDocElem && $docElem.scrollTop || inBody && body.$.scrollTop );
                                 y -= clientTop;
                         }
                         else
@@ -1161 +1165 @@
                         {
                                 // In Firefox, we'll endup one pixel before the element positions,
                                 // so we must add it here.
-                                if ( CKEDITOR.env.gecko && !CKEDITOR.env.quirks )
+                                if ( CKEDITOR.env.gecko && !quirks )
                                 {
                                         x += this.$.clientLeft ? 1 : 0;
                                         y += this.$.clientTop ? 1 : 0;