afup/htdocs/javascript/jquery.innerfade.js

/* =========================================================

// jquery.innerfade.js
// Datum: 2008-02-14
// Firma: Medienfreunde Hofmann & Baldes GbR
// Author: Torsten Baldes
// Mail: t.baldes@medienfreunde.com
// Web: http://medienfreunde.com

// based on the work of Matt Oakes http://portfolio.gizone.co.uk/applications/slideshow/
// and Ralf S. Engelschall http://trainofthoughts.org/

 *
 * <ul id="news">
 * <li>content 1</li>
 * <li>content 2</li>
 * <li>content 3</li>
 * </ul>
 *
 * $('#news').innerfade({
 * animationtype: Type of animation 'fade' or 'slide' (Default: 'fade'),
 * speed: Fading-/Sliding-Speed in milliseconds or keywords (slow, normal or fast) (Default: 'normal'),
 * timeout: Time between the fades in milliseconds (Default: '2000'),
 * type: Type of slideshow: 'sequence', 'random' or 'random_start' (Default: 'sequence'),
 * containerheight: Height of the containing element in any css-height-value (Default: 'auto'),
 * runningclass: CSS-Class which the container get’s applied (Default: 'innerfade'),
 * children: optional children selector (Default: null)
 * });
 *

// ========================================================= */
(function ($) {

    $.fn.innerfade = function (options) {
        return this.each(function () {
            $.innerfade(this, options);
        });
    };

    $.innerfade = function (container, options) {
        var settings = {
            'animationtype': 'fade',
            'speed': 'slow',
            'type': 'sequence',
            'timeout': 1000,
            'containerheight': 'auto',
            'runningclass': 'innerfade',
            'children': null
        };
        if (options) $.extend(settings, options);
        if (settings.children === null) var elements = $(container).children();
        else var elements = $(container).children(settings.children);
        if (elements.length > 1) {
            $(container).css('height', settings.containerheight);
            for (var i = 0; i < elements.length; i++) {
                $(elements[i]).css('z-index', String(elements.length - i)).hide();
            };
            if (settings.type == "sequence") {
                setTimeout(function () {
                    $.innerfade.next(elements, settings, 1, 0);
                }, settings.timeout);
                $(elements[0]).show();
            } else if (settings.type == "random") {
                var last = Math.floor(Math.random() * (elements.length));
                setTimeout(function () {
                    do {
                        current = Math.floor(Math.random() * (elements.length));
                    } while (last == current);
                    $.innerfade.next(elements, settings, current, last);
                }, settings.timeout);
                $(elements[last]).show();
            } else if (settings.type == 'random_start') {
                settings.type = 'sequence';
                var current = Math.floor(Math.random() * (elements.length));
                setTimeout(function () {
                    $.innerfade.next(elements, settings, (current + 1) % elements.length, current);
                }, settings.timeout);
                $(elements[current]).show();
            } else {
                alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
            }
        }
    };

    $.innerfade.next = function (elements, settings, current, last) {
        if (settings.animationtype == 'slide') {
            $(elements[last]).slideUp(settings.speed);
            $(elements[current]).slideDown(settings.speed);
            if (settings.type == "sequence") {
                if ((current + 1) < elements.length) {
                    current = current + 1;
                    last = current - 1;
                } else {
                    current = 0;
                    last = elements.length - 1;
                }
            } else if (settings.type == "random") {
                last = current;
                do {
                    current = Math.floor(Math.random() * (elements.length));
                } while (last == current);
                $("#help").html($("#help").html() + '<br/>' + last + '=>' + current);
            } else alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
            setTimeout((function () {
                $.innerfade.next(elements, settings, current, last);
            }), settings.timeout);
        } else if (settings.animationtype == 'fade') {
            $(elements[last]).fadeOut(settings.speed, function () {
                $(elements[last]).hide();
                $(elements[current]).fadeIn(settings.speed, function () {
                    removeFilter($(this)[0]);
                });
                if (settings.type == "sequence") {
                    if ((current + 1) < elements.length) {
                        current = current + 1;
                        last = current - 1;
                    } else {
                        current = 0;
                        last = elements.length - 1;
                    }
                } else if (settings.type == "random") {
                    last = current;
                    do {
                        current = Math.floor(Math.random() * (elements.length));
                    } while (last == current);
                } else alert('Innerfade-Type must either be \'sequence\', \'random\' or \'random_start\'');
                setTimeout((function () {
                    $.innerfade.next(elements, settings, current, last);
                }), settings.timeout);
            });
        } else alert('Innerfade-animationtype must either be \'slide\' or \'fade\'');
    };

})(jQuery);

// **** remove Opacity-Filter in ie ****
function removeFilter(element) {
    if (element.style.removeAttribute) {
        element.style.removeAttribute('filter');
    }
}


$(document).ready(function () {
    $('.fade').innerfade({
        speed: 'slow',
        timeout: 2000,
        type: 'sequence',
        containerheight: '140px'
    }).css('opacity', '1').css('padding-left', '15px');
    $('.fadelarge').innerfade({
        speed: 'slow',
        timeout: 2000,
        type: 'sequence',
        containerheight: '140px'
    }).css('opacity', '1').css('padding-left', '15px');
});