From 2c416f1cb6e5a18644c956f15c9f13ff5ca428d3 Mon Sep 17 00:00:00 2001
From: Jo-Philipp Wich <jow@openwrt.org>
Date: Mon, 11 Oct 2010 22:52:24 +0000
Subject: [PATCH] themes/base: add JavaScript XMLHTTPRequest support library
 and load icon

---
 .../htdocs/luci-static/resources/icons/loading.gif | Bin 0 -> 1787 bytes
 themes/base/htdocs/luci-static/resources/xhr.js    | 150 +++++++++++++++++++++
 2 files changed, 150 insertions(+)
 create mode 100644 themes/base/htdocs/luci-static/resources/icons/loading.gif
 create mode 100644 themes/base/htdocs/luci-static/resources/xhr.js

diff --git a/themes/base/htdocs/luci-static/resources/icons/loading.gif b/themes/base/htdocs/luci-static/resources/icons/loading.gif
new file mode 100644
index 0000000000000000000000000000000000000000..5bb90fd6a49107a321c35b9cee4a7b810314b51f
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diff --git a/themes/base/htdocs/luci-static/resources/xhr.js b/themes/base/htdocs/luci-static/resources/xhr.js
new file mode 100644
index 000000000..7e2e3b090
--- /dev/null
+++ b/themes/base/htdocs/luci-static/resources/xhr.js
@@ -0,0 +1,150 @@
+/*
+ * xhr.js - XMLHttpRequest helper class
+ * (c) 2008-2010 Jo-Philipp Wich
+ */
+
+XHR = function()
+{
+	this.reinit = function()
+	{
+		if( window.XMLHttpRequest ) {
+			this._xmlHttp = new XMLHttpRequest();
+		}
+		else if( window.ActiveXObject ) {
+			this._xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
+		}
+		else {
+			alert("xhr.js: XMLHttpRequest is not supported by this browser!");
+		}
+	}
+
+	this.busy = function() {
+		switch( this._xmlHttp.readyState )
+		{
+			case 1:
+			case 2:
+			case 3:
+				return true;
+
+			default:
+				return false;
+		}
+	}
+
+	this.abort = function() {
+		if( this.busy() )
+			this._xmlHttp.abort();
+	}
+
+	this.get = function(url,data,callback)
+	{
+		this.reinit();
+
+		var xhr  = this._xmlHttp;
+		var code = this._encode( data );
+
+		url = 'http://' + location.hostname +
+			( location.port ? ':' + location.port : '' ) + url;
+
+		if( code )
+			if( url.substr(url.length-1,1) == '&' )
+				url += code;
+			else
+				url += '?' + code;
+
+		xhr.open( 'GET', url, true );
+
+		xhr.onreadystatechange = function()
+		{
+			if( xhr.readyState == 4 ) {
+				callback( xhr );
+			}
+		}
+
+		xhr.send( null );
+	}
+
+	this.post = function(url,data,callback)
+	{
+		this.reinit();
+
+		var xhr  = this._xmlHttp;
+		var code = this._encode( data );
+
+		xhr.onreadystatechange = function()
+		{
+			if( xhr.readyState == 4 )
+				callback( xhr );
+		}
+
+		xhr.open( 'POST', url, true );
+		xhr.setRequestHeader( 'Content-type', 'application/x-www-form-urlencoded' );
+		xhr.setRequestHeader( 'Content-length', code.length );
+		xhr.setRequestHeader( 'Connection', 'close' );
+		xhr.send( code );
+	}
+
+	this.cancel = function()
+	{
+		this._xmlHttp.onreadystatechange = function(){};
+		this._xmlHttp.abort();
+	}
+
+	this.send_form = function(form,callback,extra_values)
+	{
+		var code = '';
+
+		for( var i = 0; i < form.elements.length; i++ )
+		{
+			var e = form.elements[i];
+
+			if( e.options )
+			{
+				code += ( code ? '&' : '' ) +
+					form.elements[i].name + '=' + encodeURIComponent(
+						e.options[e.selectedIndex].value
+					);
+			}
+			else if( e.length )
+			{
+				for( var j = 0; j < e.length; j++ )
+					if( e[j].name ) {
+						code += ( code ? '&' : '' ) +
+							e[j].name + '=' + encodeURIComponent( e[j].value );
+					}
+			}
+			else
+			{
+				code += ( code ? '&' : '' ) +
+					e.name + '=' + encodeURIComponent( e.value );
+			}
+		}
+
+		if( typeof extra_values == 'object' )
+			for( var key in extra_values )
+				code += ( code ? '&' : '' ) +
+					key + '=' + encodeURIComponent( extra_values[key] );
+
+		return(
+			( form.method == 'get' )
+				? this.get( form.getAttribute('action'), code, callback )
+				: this.post( form.getAttribute('action'), code, callback )
+		);
+	}
+
+	this._encode = function(obj)
+	{
+		if( typeof obj == 'object' )
+		{
+			var code = '';
+			var self = this;
+
+			for( var k in obj )
+				code += ( code ? '&' : '' ) +
+					k + '=' + encodeURIComponent( obj[k] );
+			return code;
+		}
+
+		return obj;
+	}
+}
-- 
2.11.0