gistfile1.txt

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Bespin.
 *
 * The Initial Developer of the Original Code is
 * Mozilla.
 * Portions created by the Initial Developer are Copyright (C) 2009
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Bespin Team (bespin@mozilla.com)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

var SC = require('sproutcore/runtime').SC;

exports.ReFocus = {
    _rf_view: null,
    
    setup: function() {
        SC.RootResponder.responder.addObserver('hasFocus', this, function() {
            if (SC.RootResponder.responder.get('hasFocus') && 
                !SC.none(exports.ReFocus._rf_view)) {
                if (SC.none(SC.RootResponder.responder.keyPane.firstResponder)) {
                    console.log(SC.RootResponder.responder.keyPane);
                    exports.ReFocus._rf_view.becomeFirstResponder();
                }
            }
        });
    },
  
    willLoseKeyResponderTo: function(responder) {
        arguments.callee.base.apply(this, arguments);
        exports.ReFocus._rf_view = null;
        
        // If the responder is null then the focus is lost to an non-SC-component.
        // This can happen, because
        // 1) another DOM element on the page
        //    OR
        // 2) the entire page/window lost the focus
        // 
        if (SC.none(responder)) {
            setTimeout(function() {
                if (!SC.RootResponder.responder.hasFocus) {
                    exports.ReFocus._rf_view = this;
                }
            }.bind(this), 0);
        }
    }
}