Ticket #5681: 5681.patch

_source/plugins/contextmenu/plugin.js

@@ -54 +54 @@
                 onMenu : function( offsetParent, corner, offsetX, offsetY )
                 {
                         var menu = this._.menu,
+                                contextmenu = this,
                                 editor = this.editor;
 
                         if ( menu )
@@ -92 +93 @@
                                         else if ( keystroke == 27 )
                                         {
                                                 this.hide();
-                                                editor.focus();
+                                                contextmenu._.editorFocus && editor.focus();
                                         }
                                         return false;
                                 };
@@ -249 +250 @@
 
                 show : function( offsetParent, corner, offsetX, offsetY )
                 {
-                        this.editor.focus();
+                        // Determinate whether editor focus is required before open/ after close. (#5681)
+                        if ( this._.editorFocus = offsetParent.getDocument().equals( this.editor.document ) || this.editor.focusManager.hasFocus )
+                                this.editor.focus();
 
                         // Selection will be unavailable after context menu shows up
                         // in IE, lock it now.