/**
 * Copyright (c) 2006 Peter Goodman
 * Licensed under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 */

//--------------------------------------------
// A class of generic functions used in the query
// class.
//--------------------------------------------

dynamic class FA.build.fn extends FA.Query
{
	//--------------------------------------------
	// Loop through an array or object and apply
	// a function to each loop. This also corrects
	// the functions scope so that whatever each row
	// of the loop is becomes 'this'
	//--------------------------------------------
	
	public function each (loop_function:Function) : FA.Query
	{
		if (!_is_dirty and _object.length != undefined)
		{
			for (var row in _object)
			{
				loop_function.apply(_object[row], [row])
			}
		}
		return this;
	}
	
	//--------------------------------------------
	// A two purpose function. Set can either set a
	// single value by supplying both function parameters
	// (key and value). If only the first parameter is
	// received and it is a object, all of the methods in
	// that object will be set the the thing that we are
	// modifying.
	//--------------------------------------------
	
	public function set (object_or_key, value) : FA.Query
	{
		if (!_is_dirty)
		{
			if (object_or_key.constructor == Object)
			{
				for (var property in object_or_key)
				{
					_object[property] = object_or_key[property];
				}
			}
			else
			{
				_object[object_or_key] = value;
			}
		}
		
		return this;
	}
	
	//--------------------------------------------
	// Simple get function. it will either try to 
	// get a specific thing from what we are using,
	// if that doesn't exist and 0 is specified, than
	// it will return what we are modifying.
	//--------------------------------------------
	
	public function get (key)
	{
		var wanted_value;
		
		if (key == undefined)
		{
			// return the object we are modifying
			wanted_value = _object;
		}
		else
		{
			if (_object[key] != undefined)
			{
				wanted_value = _object[key];
			}
			else
			{
				// xml
				if (_object.attributes != undefined)
				{
					wanted_value = this.attrib(key);
				}
				
				// to be like jQuery
				else if (key == 0)
				{
					wanted_value = _object;
				}
			}
		}
		
		return wanted_value;
	}
	
	//--------------------------------------------
	// Clear all graphics made.
	//--------------------------------------------
	
	public function clear () : FA.Query
	{
		if (_object instanceof MovieClip or _object instanceof Video)
		{
			_object.clear();
		}
		
		return this;
	}
}