/*

TimothyHumphrey.WebControls

Copyright (c) 2003 - 2004 Timothy Humphrey



This program is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 2 of the License, or

(at your option) any later version.



This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.



You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/



//-------------------- Public members --------------------\\

Browser = new Object();



Browser.GetCanvas = function() {

	if(Browser.ClientElement.clientWidth * Browser.ClientElement.clientHeight >

		Browser.ClientElement.scrollWidth * Browser.ClientElement.scrollHeight

		)

		return new Rect(0, 0, Browser.ClientElement.clientWidth, Browser.ClientElement.clientHeight);

	else

		return new Rect(0, 0, Browser.ClientElement.scrollWidth, Browser.ClientElement.scrollHeight);

}



Browser.GetCursor = function() {

	return Browser.Cursor;

}



Browser.GetDimensions = function(element) {

	var left = 0;

	var top = 0;

	var width = element.offsetWidth;

	var height = element.offsetHeight;



	var oelement=element;



	while(element) {

		left += element.offsetLeft;

		top += element.offsetTop;

		element = element.offsetParent;

	}



	return new Rect(left, top, width, height);

}



Browser.GetElement = function(id) {

	return id ? document.getElementById(id) : null;

}



Browser.GetViewPort = function() {

	return new Rect(

		Browser.ClientElement.scrollLeft

		,Browser.ClientElement.scrollTop

		,Browser.ClientElement.clientWidth

		,Browser.ClientElement.clientHeight

		);

}



Browser.Move = function(element, arg1, arg2) {

	var elemRect;

	var x, y;



	element.style.left = element.style.top = "0";

	elemRect = Browser.GetDimensions(element);



	//Move element to desired position

	switch(arguments.length) {

	case 2:

		x = arg1.X - elemRect.Left;

		y = arg1.Y - elemRect.Top;

		break;

	case 3:

		x = arg1 - elemRect.Left;

		y = arg2 - elemRect.Top;

		break;

	default:

		return;

	}



	element.style.left = x + "px";

	element.style.top = y + "px";

}



//-------------------- Private members --------------------\\

Browser.ClientElement = document.documentElement.clientWidth * document.documentElement.clientHeight >=

	document.body.clientWidth * document.body.clientHeight

	? document.documentElement

	: document.body;

Browser.Cursor = new Rect(0, 0, 0, 0);



Browser.MouseMove = function(e) {

	Browser.Cursor.Left = e.clientX;

	Browser.Cursor.Top = e.clientY;

}



Delegate.Add(Browser.ClientElement, "mousemove", Browser, Browser.MouseMove);