//--
// Copyright (c) 2008, Net-ng.
// All rights reserved.
//
// This software is licensed under the BSD License, as described in
// the file LICENSE.txt, which you should have received as part of
// this distribution.
//--

// ----------------------------------------------------------------------------
// Requests

var nagare_callbacks = {
	cache : false,

    success : function (o) { setTimeout(o.responseText, 0) },
    failure : function (o) {
    	                       var url = o.getResponseHeader['X-Debug-URL'];
    						   if(url) {
    					           window.location = url;
    						   } else {
    							   alert('XHR Error');
    					       }
                           },
    upload  : function (o) {
                        	   if(o.responseText.substring(0, 5) != "URL: ") {                            	   
                                   setTimeout(o.responseXML.firstChild.lastChild.firstChild.firstChild.data, 0);
                        	   } else {
                        	       alert('XHR Error');
                        	   }
                           }
};

function nagare_getAndEval(href) {
	YAHOO.util.Connect.initHeader('ACCEPT', NAGARE_CONTENT_TYPE);
    YAHOO.util.Connect.asyncRequest("GET", href, nagare_callbacks);
    return false;
}

function nagare_hasUpload(f) {
    var inputs = f.getElementsByTagName("input");
    for(var i=0; i<inputs.length; i++)
        if(inputs[i].getAttribute("type") == "file")
            return true;
    return false;
}

function nagare_postAndEval(f, action) {
	YAHOO.util.Connect.initHeader('ACCEPT', NAGARE_CONTENT_TYPE);	
    YAHOO.util.Connect.setForm(f, nagare_hasUpload(f));
    YAHOO.util.Connect.asyncRequest("POST", "?_a&"+action, nagare_callbacks);
    return false;
}

// ----------------------------------------------------------------------------
// Responses

var nagare_loaded_named_css = {}
var nagare_loaded_named_js = {}

function nagare_filter(items, filter) {
	var not_in_filter = new Array();

	for(var i=0; i<items.length; i++)
		if(!filter[items[i][0]])
			not_in_filter[not_in_filter.length] = items[i];

	return not_in_filter;
}


function nagare_itemgetter(l, x) {
    var r = new Array();
    for(var i=0; i<l.length; i++) r[r.length] = l[i][x];
    return r
}

function nagare_loadCSS(css, attrs) {
	if(css.length) {
		var style = document.createElement('style');

        style.setAttribute("type", "text/css");
        for (var name in attrs) {
            style.setAttribute(name, attrs[name]);
        }

		if(style.styleSheet) style.styleSheet.cssText = css;
		else style.appendChild(document.createTextNode(css));
	
		document.getElementsByTagName("head")[0].appendChild(style);
	}
}

function nagare_loadAll(named_css, anon_css, css_urls, named_js, anon_js, js_urls) {
	var named_css = nagare_filter(named_css, nagare_loaded_named_css)
	for(var i=0; i<named_css.length; i++) {
		nagare_loadCSS(named_css[i][1], named_css[i][2]);
		nagare_loaded_named_css[named_css[i][0]] = 1;
	}

	nagare_loadCSS(anon_css, {});

	var named_js = nagare_filter(named_js, nagare_loaded_named_js)
	for(var i=0; i<named_js.length; i++) {
		setTimeout(named_js[i][1], 0);
		nagare_loaded_named_js[named_js[i][0]] = 1;
	}
	
	setTimeout(anon_js);
	
	YAHOO.util.Get.css(nagare_itemgetter(css_urls, 0), { onSuccess: function (o) {
		YAHOO.util.Get.script(nagare_itemgetter(js_urls, 0), { onSuccess: function(o) { o.purge() } })
	} });
}

//----------------------------------------------------------------------------
// DOM manipulation

function nagare_replaceNode(id, html) {
    var n = document.getElementById(id);
    if(n) {
	    var e = document.createElement("div");
	    e.innerHTML = html;
	    n.parentNode.replaceChild(e.firstChild, n);

    }
}

function nagare_updateNode(id, html) {
    var n = document.getElementById(id)
    if(n) n.innerHTML = html;
}