Ticket #5395: 5395_2.patch

_source/plugins/contextmenu/plugin.js

@@ -147 +147 @@
         {
                 addTarget : function( element, nativeContextMenuOnCtrl )
                 {
-                        // Opera doesn't support 'contextmenu' event, we have duo approaches employed here:
-                        // 1. Inherit the 'button override' hack we introduced in v2 (#4530), while this require the Opera browser
-                        //  option 'Allow script to detect context menu/right click events' to be always turned on.
+
+                        // For browsers (Opera <=10a) that doesn't  support 'contextmenu' event, we have duo approaches employed here:
+                        // 1. Inherit the 'button override' hack we introduced in v2 (#4530) (In Opera browser, this require the
+                        //  option 'Allow script to detect context menu/right click events' to be always turned on).
                         // 2. Considering the fact that ctrl/meta key is not been occupied
                         //  for multiple range selecting (like Gecko), we use this key
                         //  combination as a fallback for triggering context-menu. (#4530)
-                        if ( CKEDITOR.env.opera )
+                        if ( CKEDITOR.env.opera && !( 'oncontextmenu' in document.body ) )
                         {
                                 var contextMenuOverrideButton;
                                 element.on( 'mousedown', function( evt )