media.js

jquery+prototype+插件+源码+资料 非常的东西

        },
        eAttrs: {
            type:         'application/x-mplayer2',
            pluginspage:  'http://www.microsoft.com/Windows/MediaPlayer/'
        }        
    },
    // special cases
    iframe: {
        name:  'iframe',
        types: 'html,pdf'
    },
    silverlight: {
        name:  'silverlight',
        types: 'xaml'
    }
};

//
//  everything below here is private
//


var counter = 1;

for (var player in $.fn.media.defaults.players) {
    var types = $.fn.media.defaults.players[player].types;
    $.each(types.split(','), function(i,o) {
        if (isDigit(o[0])) o = 'fn' + o;
        $.fn.media[o] = $.fn.media[player] = getGenerator(player);
        $.fn.media[o+'_player'] = $.fn.media.defaults.players[player];
    });
};

function getTypesRegExp() {
    var types = '';
    for (var player in $.fn.media.defaults.players) {
        if (types.length) types += ',';
        types += $.fn.media.defaults.players[player].types;
    };
    return new RegExp('\\.(' + types.replace(/,/g,'|') + ')\\b');
};

function getGenerator(player) {
    return function(el, options) {
        return generate(el, options, player);
    };
};

function isDigit(c) {
    return '0123456789'.indexOf(c) > -1;
};

// flatten all possible options: global defaults, meta, option obj
function getSettings(el, options) {
    options = options || {};
    var $el = $(el);
    
    var cls = el.className || '';
    var meta = $.meta ? $el.data() : {};
    var w = meta.width  || parseInt(((cls.match(/w:(\d+)/)||[])[1]||0));
    var h = meta.height || parseInt(((cls.match(/h:(\d+)/)||[])[1]||0));
    if (w) meta.width  = w;
    if (h) meta.height = h;
    if (cls) meta.cls = cls;

    var a = $.fn.media.defaults;
    var b = $.meta && $.fn.media.defaults.preferMeta ? options : meta;
    var c = b == options ? meta : options;

    var p = { params: { bgColor: options.bgColor || $.fn.media.defaults.bgColor } };
    var opts = $.extend({}, a, b, c);
    $.each(['attrs','params','flashvars','silverlight'], function(i,o) {
        opts[o] = $.extend({}, p[o] || {}, a[o] || {}, b[o] || {}, c[o] || {});
    });

    if (typeof opts.caption == 'undefined') opts.caption = $el.text();

    // make sure we have a source!
    opts.src = opts.src || $el.attr('href') || $el.attr('src') || 'unknown';
    return opts;
};

//
//  Flash Player
//

// generate flash using SWFObject if possible
$.fn.media.swf = function(el, opts) {
    if (typeof SWFObject == 'undefined') {
        // roll our own
        if (opts.flashvars) {
            var a = [];
            for (var f in opts.flashvars)
                a.push(f + '=' + opts.flashvars[f]);
            if (!opts.params) opts.params = {};
            opts.params.flashvars = a.join('&');
        }
        return generate(el, opts, 'flash');
    }

    var id = el.id ? (' id="'+el.id+'"') : '';
    var cls = opts.cls ? (' class="' + opts.cls + '"') : '';
    var $div = $('<div' + id + cls + '>');
    $(el).after($div).remove();

    var so = new SWFObject(opts.src, 'movie_player_' + counter++, opts.width, opts.height, opts.flashVersion, opts.bgColor);
    for (var p in opts.params)
        if (p != 'bgColor') so.addParam(p, opts.params[p]);
    for (var f in opts.flashvars)
        so.addVariable(f, opts.flashvars[f]);
    so.write($div[0]);

    if (opts.caption) $('<div>').appendTo($div).html(opts.caption);
    return $div;
};

// map flv and mp3 files to the swf player by default
$.fn.media.flv = $.fn.media.mp3 = function(el, opts) {
    var src = opts.src;
    var player = /\.mp3\b/i.test(src) ? $.fn.media.defaults.mp3Player : $.fn.media.defaults.flvPlayer;
    opts.src = player;
    opts.src = opts.src + '?file=' + src;
    opts.flashvars = $.extend({}, { file: src }, opts.flashvars );
    return $.fn.media.swf(el, opts);
};

//
//  Silverlight
//
$.fn.media.xaml = function(el, opts) {
    if (!window.Sys || !window.Sys.Silverlight) {
        if ($.fn.media.xaml.warning) return;
        $.fn.media.xaml.warning = 1;
        alert('You must include the Silverlight.js script.');
        return;
    }

    var props = {
        width: opts.width,
        height: opts.height,
        background: opts.bgColor,
        inplaceInstallPrompt: opts.silverlight.inplaceInstallPrompt,
        isWindowless: opts.silverlight.isWindowless,
        framerate: opts.silverlight.framerate,
        version: opts.silverlight.version
    };
    var events = {
        onError: opts.silverlight.onError,
        onLoad: opts.silverlight.onLoad
    };

    var id1 = el.id ? (' id="'+el.id+'"') : '';
    var id2 = opts.id || 'AG' + counter++;
    // convert element to div
    var cls = opts.cls ? (' class="' + opts.cls + '"') : '';
    var $div = $('<div' + id1 + cls + '>');
    $(el).after($div).remove();
    
    Sys.Silverlight.createObjectEx({
        source: opts.src,
        initParams: opts.silverlight.initParams,
        userContext: opts.silverlight.userContext,
        id: id2,
        parentElement: $div[0],
        properties: props,
        events: events
    });

    if (opts.caption) $('<div>').appendTo($div).html(opts.caption);
    return $div;
};

//
// generate object/embed markup
//
function generate(el, opts, player) {
    var $el = $(el);
    var o = $.fn.media.defaults.players[player];
    
    if (player == 'iframe') {
        var o = $('<iframe' + ' width="' + opts.width + '" height="' + opts.height + '" >');
        o.attr('src', opts.src);
        o.css('backgroundColor', o.bgColor);
    }
    else if ($.browser.msie) {
        var a = ['<object width="' + opts.width + '" height="' + opts.height + '" '];
        for (var key in opts.attrs)
            a.push(key + '="'+opts.attrs[key]+'" ');
        for (var key in o.oAttrs || {})
            a.push(key + '="'+o.oAttrs[key]+'" ');
        a.push('></ob'+'ject'+'>');
        var p = ['<param name="' + (o.oUrl || 'src') +'" value="' + opts.src + '">'];
        for (var key in opts.params)
            p.push('<param name="'+ key +'" value="' + opts.params[key] + '">');
        var o = document.createElement(a.join(''));
        for (var i=0; i < p.length; i++)
            o.appendChild(document.createElement(p[i]));
    }
    else {
        var a = ['<embed width="' + opts.width + '" height="' + opts.height + '" style="display:block"'];
        if (opts.src) a.push(' src="' + opts.src + '" ');
        for (var key in opts.attrs)
            a.push(key + '="'+opts.attrs[key]+'" ');
        for (var key in o.eAttrs || {})
            a.push(key + '="'+o.eAttrs[key]+'" ');
        for (var key in opts.params)
            a.push(key + '="'+opts.params[key]+'" ');
        a.push('></em'+'bed'+'>');
    }
    // convert element to div
    var id = el.id ? (' id="'+el.id+'"') : '';
    var cls = opts.cls ? (' class="' + opts.cls + '"') : '';
    var $div = $('<div' + id + cls + '>');
    $el.after($div).remove();
    ($.browser.msie || player == 'iframe') ? $div.append(o) : $div.html(a.join(''));
    if (opts.caption) $('<div>').appendTo($div).html(opts.caption);
    return $div;
};


})(jQuery);