/*

###############################################################################
#
# Copyright (c) 2009 Logimake, Inc.
#
# Orignially distributed by bugzappy at http://www.bugzappy.com/
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
##############################################################################


#
# Bugzappy's "cyclicFade" jquery plugin
#


Please post questions and comments at:

http://www.bugzappy.com/

or send email to:

bugzappy@logimake.com

*/

// developed and tested with jQuery version 1.3.2

//
// create closure
//
(function ($) {
    //
    // plugin definition
    //
    $.fn.cyclicFade = function (options) {
        if (typeof (options) == 'string') {
            if (options == 'stop') {
                $(this).stop(true);
                return this.each(function () {
                    $(this).data('cyclic-fade').enabled = false;
                });
            }
            else return null;
        }
        else {
            var opts = $.extend({}, $.fn.cyclicFade.defaults, options);
            return this.each(function () {
                $(this).data('cyclic-fade', { enabled: true });
                $.fn.cyclicFade.doCycle(this, 1, opts.repeat, opts.params, 0);
            });
        }
    };

    $.fn.cyclicFade.defaults = {
        repeat: 0,
        params: [{ fadeout: 100, stayout: 300, opout: 0, fadein: 100, stayin: 300, opin: 1.0}]
    };

    // this function is used internally
    $.fn.cyclicFade.doCycle = function (obj, start, finish, paramsList, paramsPos) {
        if (paramsPos >= paramsList.length) {
            paramsPos = 0;
        }
        // important: params must be a local variable (var) otherwise it gets overwritten by other
        // calls to doCycle
        var params = paramsList[paramsPos];
        if ($(obj).data('cyclic-fade').enabled) $(obj).fadeTo(params.fadeout, params.opout, function () {
            if ($(obj).data('cyclic-fade').enabled) setTimeout(function () {
                if ($(obj).data('cyclic-fade').enabled) $(obj).fadeTo(params.fadein, params.opin, function () {
                    if ($(obj).data('cyclic-fade').enabled) setTimeout(function () {
                        if (start != finish) {
                            // increment start only if it is bounded
                            if (start < finish) {
                                start++;
                            }
                            $.fn.cyclicFade.doCycle(obj, start, finish, paramsList, paramsPos + 1);
                        }
                    }, params.stayin)
                })
            }, params.stayout)
        });
    };

})(jQuery);