SWFタグライター

頼まれたのでswfTagWriter.jsの書き出しに必要な部分だけをパクりつつ、リファクターしてみたよ。使うのはこんな感じ：

  var f = Flash.TagWriter({

     filename: '/path/to/flash.swf',

     attributes: { some_html_attribute: 'hoge' },

     flashvars: { var1: 'value' },

     parameters: { param1: 'param1' },

     width: 720,

     height: 50,

     id: 'my_id',

     loop: false,

     quality: 'high'

  });

  document.write(f);

使えそうだったらどうぞー。

  if (typeof Class == 'undefined') {
    Class = {
      create: function() {
        return function() { this.initialize.apply(this, arguments) };
      }
    };
  }
  var Flash = {};

  (function() {

    Flash.Detector  = Class.create();

    Flash.TagWriter = Class.create();

    Flash.Util = {};

    Flash.Util.htmlEscape = function(string) {

      string = '' + string; /* force stringification */

      return string.replace(/&/g, '&#38;').replace(/</g, '&#60;').replace(/>/g, '&#62;');

    }

    Flash.Detector.prototype = {

      initialize: function() {

      },

      isAvailable: function() {

        if (navigator.plugins && navigator.mimeTypes.length > 0 && navigator.plugins["Shockwave Flash"]) {

          return true;

        }

        var ret = false;

        if (window.ActiveXObject) { /* Oh, the gory */

          /*@cc_on

          @if(@_jscript_version >= 5.0)

          try {

            var player = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");

            ret = true;

          } catch(e) {}

          @end @*/

        }

        return ret;

      }

    };

    Flash.TagWriter.prototype = {

      initialize: function(opts) {

        if (opts == null) opts = {};

        var member = {

          attributes: {},

          flashvars: {},

          parameters: {},

          filename: '',

          width: '',

          height: '',

          id: '',

          loop: false,

          quality: 'high'

        };

        for(var key in member) {

          this[key] = opts[key] || member[key];

        }

        var detector = new Flash.Detector();

        this.html = 

          detector.isAvailable() ?

            ( this.isMSIE() ? this.htmlForMSIE : this.htmlForSaneBrowsers ) :

            this.htmlForNonFlash

        ;

      },

      isMSIE: function() {

        var agent = navigator.userAgent.toLowerCase();

        return (

          agent.indexOf('msie')  >=  0 &&

          agent.indexOf('win')   >=  0 &&

          agent.indexOf('opera') == -1 

        ) ;

      },

      htmlForMSIE: function() {

        var html = '';

        html += 

          '<object ' +

          'classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" ' +

          'codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#' + '" ' 

          'width="'  + this.width + '" ' +

          'height="' + this.height + '" ' +

          'id="'     + this.id + '" '

        ;

        html += ">\n";

        html += this.htmlForParams();

        html += this.htmlForFlashVars();

        html += "</object>\n";

        return html;

      },

      htmlForSaneBrowsers: function() {

        var html = '';

        html +=

          '<object ' +

          'type="application/x-shockwave-flash" ' +

          'data="'   + this.filename + '" ' +

          'width="'  + this.width + '" ' +

          'height="' + this.height + '" ' +

          'id="'     + this.id + '" '

        ;

        html += ">\n";

        html += this.htmlForParams();

        html += this.htmlForFlashVars();

        html += "</object>\n";

        return html;

      },

      htmlForNonFlash: function() {

        return '<p>You have to <a href="http://www.macromedia.com/jp/shockwave/download/?P1_Prod_Version=ShockwaveFlash&#38;Lang=Japanese">install or update Flash Player</a> in order to display the content.</p>';

      },

      htmlForParams: function() {

        var html = '';

        var params = {};

        for(var key in this.parameters) {

          params[key] = this.parameters[key];

        }

        params.movie   = this.filename;

        params.loop    = this.loop;

        params.quality = this.quality;

        for(var key in params) {

          html += '<param name="' + key + '" value="' + Flash.Util.htmlEscape(params[key]) + "\" />\n";

        }

        return html;

      },

      htmlForFlashVars: function() {

        var varlist = [];

        for(var key in this.flashvars) {

          varlist.push(

            key + '=' + Flash.Util.htmlEscape(this.flashvars[key])

          );

        }

        return (varlist.length > 0) ?

          '<param name="flashvars" value="' + varlist.join('&') + "\" />\n" :

          ''

        ;

      },

      htmlForAttributes: function() {

        var html = '';

        for (var key in this.attributes) {

          var value = "" + this.attributes[key];

          html += key + '="' + Flash.Util.htmlEscape(value) + '" ';

        }

        return html;

      }

    };

  })();