path: root/3rdparty/simplepie/demo/for_the_demo/source_files/sIFR-r245/sIFR.as

/*=:project
    scalable Inman Flash Replacement (sIFR) version 3.

  =:file
    Copyright: 2006 Mark Wubben.
    Author: Mark Wubben, <http://novemberborn.net/>

  =:history
    * IFR: Shaun Inman
    * sIFR 1: Mike Davidson, Shaun Inman and Tomas Jogin
    * sIFR 2: Mike Davidson, Shaun Inman, Tomas Jogin and Mark Wubben

  =:license
    This software is licensed and provided under the CC-GNU LGPL.
    See <http://creativecommons.org/licenses/LGPL/2.1/>    
*/

import SifrStyleSheet;

class sIFR {
  public static var DEFAULT_TEXT                 = 'Rendered with sIFR 3, revision 245';
  public static var CSS_ROOT_CLASS               = 'sIFR-root';
  public static var DEFAULT_WIDTH                = 300;
  public static var DEFAULT_HEIGHT               = 100;
  public static var DEFAULT_ANTI_ALIAS_TYPE      = 'advanced';
  public static var MARGIN_LEFT                  = -3;
  public static var PADDING_BOTTOM               = 5; // Extra padding to make sure the movie is high enough in most cases.
  public static var LEADING_REMAINDER            = 2; // Flash uses the specified leading minus 2 as the applied leading.

  public static var MAX_FONT_SIZE                = 126;
  public static var ALIASING_MAX_FONT_SIZE       = 48;
  
  //= Holds CSS properties and other rendering properties for the Flash movie.
  //  *Don't overwrite!*
  public static var styles:SifrStyleSheet        = new SifrStyleSheet();
  //= Allow sIFR to be run from localhost
  public static var fromLocal:Boolean            = true;
  //= Array containing domains for which sIFR may render text. Used to prevent
  //  hotlinking. Use `*` to allow all domains.
  public static var domains:Array                = [];
  //= Whether kerning is enabled by default. This can be overriden from the client side.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002811.html>.
  public static var defaultKerning:Boolean       = true;
  //= Default value which can be overriden from the client side.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002788.html>.
  public static var defaultSharpness:Number      = 0;
  //= Default value which can be overriden from the client side.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002787.html>.
  public static var defaultThickness:Number      = 0;
  //= Default value which can be overriden from the client side.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002732.html>.
  public static var defaultOpacity:Number        = -1; // Use client settings
  //= Default value which can be overriden from the client side.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002788.html>.
  public static var defaultBlendMode:Number      = -1; // Use cliest settings
  //= Overrides the grid fit type as defined on the client side.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002444.html>.
  public static var enforcedGridFitType:String   = null;
  //= If `true` sIFR won't override the anti aliasing set in the Flash IDE when exporting.
  //  Thickness and sharpness won't be affected either.
  public static var preserveAntiAlias:Boolean    = false;
  //= If `true` sIFR will disable anti-aliasing if the font size is larger than `ALIASING_MAX_FONT_SIZE`.
  //  This setting is *independent* from `preserveAntiAlias`.
  public static var conditionalAntiAlias:Boolean = true;
  //= Sets the anti alias type. By default it's `DEFAULT_ANTI_ALIAS_TYPE`.
  //  See also <http://livedocs.macromedia.com/flash/8/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002733.html>.
  public static var antiAliasType:String         = null;
  //= Flash filters can be added to this array and will be applied to the text field.
  public static var filters:Array                = [];
  //= A mapping from the names of the filters to their actual objecs, used when transforming
  //  filters defined on the client. You can add additional filters here so they'll be supported
  //  when defined on the client.
  public static var filterMap:Object             = {
    DisplacementMapFilter : flash.filters.DisplacementMapFilter,
    ColorMatrixFilter     : flash.filters.ColorMatrixFilter,
    ConvolutionFilter     : flash.filters.ConvolutionFilter,
    GradientBevelFilter   : flash.filters.GradientBevelFilter,
    GradientGlowFilter    : flash.filters.GradientGlowFilter,
    BevelFilter           : flash.filters.BevelFilter,
    GlowFilter            : flash.filters.GlowFilter,
    BlurFilter            : flash.filters.BlurFilter,
    DropShadowFilter      : flash.filters.DropShadowFilter
  };

  private static var instance;
  
  private var textField;
  private var content;
  private var realHeight;
  private var originalHeight;
  private var currentHeight;
  private var fontSize;
  private var tuneWidth;
  private var tuneHeight;
  

  
  //= Sets the default styles for `sIFR.styles`. This method is called
  //  directly in `sifr.fla`, before options are applied.
  public static function setDefaultStyles() {
    sIFR.styles.parseCSS([
      '.', CSS_ROOT_CLASS, ' { color: #000000; }',
      'strong { display: inline; font-weight: bold; } ',
      'em { display: inline; font-style: italic; }',
      'a { color: #0000FF; text-decoration: underline; }',
      'a:hover { color: #0000FF; text-decoration: none; }'
    ].join(''));
  }
  
  //= Validates the domain sIFR is being used on.
  //  Returns `true` if the domain is valid, `false` otherwise.  
  public static function checkDomain():Boolean {
    if(sIFR.domains.length == 0) return true;

    var domain = (new LocalConnection()).domain();
    if(sIFR.fromLocal) sIFR.domains.push('localhost');
    
    for(var i = 0; i < sIFR.domains.length; i++) {
      var match = sIFR.domains[i];
      if(match == '*' || match == domain) return true;

      var wildcard = match.lastIndexOf('*');
      if(wildcard > -1) {
        match = match.substr(wildcard + 1);
        var matchPosition = domain.lastIndexOf(match);
        if(matchPosition > -1 && (matchPosition + match.length) == domain.length) return true;
      }
    }
    
    return false;
  }
  
  //= Runs sIFR. Called automatically.
  public static function run() {
    var holder  = _root.holder;
    var content = checkDomain() ? unescape(_root.content) : DEFAULT_TEXT
    if(content == 'undefined' || content == '') {
      content = DEFAULT_TEXT;
      fscommand('resetmovie', '');
    } else fscommand('ping', '');

    // Sets stage parameters
    Stage.scaleMode = 'noscale';
    Stage.align = 'TL';
    Stage.showMenu = false;
    
    // Other parameters
    var opacity = parseInt(_root.opacity);
    if(!isNaN(opacity)) holder._alpha = sIFR.defaultOpacity == -1 ? opacity : sIFR.defaultOpacity;
    else holder._alpha = 100;
    _root.blendMode = sIFR.defaultBlendMode == -1 ? _root.blendmode : sIFR.defaultBlendMode;

    sIFR.instance = new sIFR(holder.txtF, content);
    // This should ignore resizes from the callback. Disabled for now.
/*    if(_root.zoomsupport == 'true') Stage.addListener({onResize: function() { sIFR.instance.scale() }});*/

    // Setup callbacks
    _root.watch('callbackTrigger', function() { 
      sIFR.callback();
      return false;
    });
  }
  
  private static function eval(str) {
    var as;
    
    if(str.charAt(0) == '{') { // Ah, we need to create an object
      as = {};
      str = str.substring(1, str.length - 1);
      var $ = str.split(',');
      for(var i = 0; i < $.length; i++) {
        var $1 = $[i].split(':');
        as[$1[0]] = sIFR.eval($1[1]);
      }
    } else if(str.charAt(0) == '"') { // String
      as = str.substring(1, str.length - 1);
    } else if(str ==