// Plugin: heartbeat.
//
// Author : Nordès Ménard-Lamarre
// Last modif: 08/08/08
// Licence: This code is under the MIT license
// Version: 0.1
//
// Copyright (c) 2008 Nordès Ménard-Lamarre
// 
// 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.

(function($) {
    $.fn.heartBeat = function(options) {
        // Heart beat plugin
        //
        // build main options before element iteration
        var opts = $.extend({}, $.fn.heartBeat.defaults, options);

        // Apply the modification on each item in the selector.
        return this.each(function() {
            var $this = $(this);
            // build element specific options
            var o = opts;

            if (!o.alwaysBeat) {
                $this.bind("mouseover", function() {
                    // set the interval
                    // TODO
                })
				.bind("mouseout", function() {
				    // clear the interval
				    // TODO
				});
            }
            else {
                var myThis = $(this);
                $.fn.heartBeat.start($(this), o);
                if (o.repeat) {
                    var intervalFct = function() { $.fn.heartBeat.start(myThis, o); }; // Fix for setInterval bug between browser
                    var intervalId = setInterval(intervalFct, o.delayBetweenAnimation + o.delay * 2);
                    $(this).attr("intervalId", intervalId);
                }
            }

        });
    };

    $.fn.heartBeat.start = function(thisItem, options) {
        var opts = $.extend({}, $.fn.heartBeat.defaults, options);

        if (thisItem.css("opacity") == opts.opacityMax) {
            thisItem.fadeTo(opts.delay, opts.opacityMin, function() { thisItem.fadeTo(opts.delay, opts.opacityMax); });
        }
    };

    $.fn.heartBeat.stopHeartBeat = function(options) {
        // Stop the heart beat.
        return this.each(function() {
            var intervalId = $(this).attr("intervalId");
            clearInterval(intervalId);
            $(this).attr("intervalId", 0);
        });
    }

    $.fn.heartBeat.defaults = {
        opacityMax: "1",
        opacityMin: "0.2",
        delay: "75", // in ms
        delayBetweenAnimation: 1000,
        alwaysBeat: true,
        repeat: false
    };

})(jQuery);