FlashVarUtil

/*
    CASA Lib for ActionScript 3.0
    Copyright (c) 2011, Aaron Clinger & Contributors of CASA Lib
    All rights reserved.
    
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      this list of conditions and the following disclaimer.
    
    - Redistributions in binary form must reproduce the above copyright notice,
      this list of conditions and the following disclaimer in the documentation
      and/or other materials provided with the distribution.
    
    - Neither the name of the CASA Lib nor the names of its contributors
      may be used to endorse or promote products derived from this software
      without specific prior written permission.
    
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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*/
package org.casalib.util {
    import org.casalib.util.StageReference;
    
    /**
        Utility for providing easy access to HTML embeded FlashVars.
        
        @author Aaron Clinger
        @version 09/15/08
        @usageNote You must first initialize {@link StageReference} before using this class.
    */
    public class FlashVarUtil {
        
        
        /**
            Returns a FlashVar value by key.
            
            @param key: The name of the FlashVar to retrieve.
            @return The string value of the FlashVar.
            @usageNote You must first initialize {@link StageReference} before using this class.
        */
        public static function getValue(key:String):String {
            return StageReference.getStage().loaderInfo.parameters[key];
        }
        
        /**
            Checks to if FlashVar exists.
            
            @param key: The name of the FlashVar to check for existence.
            @return Returns true if the key exists; otherwise false.
            @usageNote You must first initialize {@link StageReference} before using this class.
        */
        public static function hasKey(key:String):Boolean {
            return FlashVarUtil.getValue(key) ? true : false;
        }
    }
}