/*
Les different element dragable auront une interface getStr, getArray, etc pour chaque type. Cela 
permettra lors du deposer du cycle glisser deposer a l'objet recepteur de choisir le type le plus 
adapté avec des priorité de selection dudit type.
*/

function dragable( elem ) { // elem : HTMLElement
	
	this.elem = elem;
	this.source = null;
	
	function beginDrag(source) {
		
		this.source = source;
	}
	
	/*function isOver(mousex, mousey) {
		var ret = false;
		var nodes = this.elem.childNodes
		for( var i in nodes ) {
			if (nodes[i] != this.source) {
				
				nodes[i].
			}
		}
	}*/
	
	function endDrag() {
	}
	
	function update() {
	}
	
	function onmove() {
	}
}


function dsMouse(elem) {
	
	this.elem = elem;
	this.x = 0;
	this.y = 0;
	this.lastX = 0;
	this.lastY = 0;
	
	var self = this;
	
	this.begin = function(e) {
		
		this.x = e.clientX;
		this.y = e.clientY;
		this.lastX = e.clientX;
		this.lastY = e.clientY;
		this.elem.removeEventListener('click', anon_begin, false);
	}
	
	this.onmove = function(e) {
		
		this.x = this.x + e.clientX - this.lastX;
		this.y = this.y + e.clientY - this.lastY;
		this.lastX = e.clientX;
		this.lastY = e.clientY;
		return true;
	}
	
	
	function anon_begin(e) {
		
		return self.begin(e);
	}
	
	function anon_onmove(e) {
		
		return self.onmove(e);
	}
	
	
	elem.addEventListener('click', anon_begin, false);
	elem.addEventListener('mousemove', anon_onmove, false);
}