// -------------------------------------------------------------------------------------
// Nom : st_Xbrowser.js
//
// -------------------------------------------------------------------------------------
// Description :  création d'un objet Browser qui sert a détecter le navigateur de l'utilisateur
// 
// -------------------------------------------------------------------------------------
// Créé le 05/05/2010 par SimTrade Distribution
// Mis à jour le ../03/2011 par SimTrade Distribution
//
// -------------------------------------------------------------------------------------
// Notes : 
//
// -------------------------------------------------------------------------------------
// Entrées : aucune.
// -------------------------------------------------------------------------------------
// Sorties : renvoie un objet de type Browser
//		- browser.ff (boolean)			si Firefox this->ff == TRUE
//		- browser.ie (boolean)			si Internet Explorer this->ie == TRUE
//		- browser.navigateur (string) 	nom du navigateur détecté
// -------------------------------------------------------------------------------------
// Exemple : 
//
// -------------------------------------------------------------------------------------
	

function Browser() {	// TODO : OK. A compléter (cf.137 du livre AJAX). A renommer en st_DetectionBrowser() ? Envisager de regrouper cette fonction avec... dans un fichier unique ?
	

	if (navigator.userAgent.indexOf('Firefox') != -1) // TODO : à compléter (cf.137 du livre AJAX).
	{
		this.ff = true;
		this.navigateur = 'Firefox';
	} 
	else if (navigator.userAgent.indexOf('MSIE') != -1) {
		this.ie = true;
		this.navigateur = 'IE';
		} 
		else
			this.navigateur = 'Inconnu';
}

function BrowserDetect() {
	
	var BrowserDetect = {
			
		init: function () {
			this.browser	= this.searchString(this.dataBrowser) || "Navigateur inconnu";
			this.version	= this.searchVersion(navigator.userAgent) || this.searchVersion(navigator.appVersion) || "version inconnue";
			this.OS 			= this.searchString(this.dataOS) || "OS inconnu";
		},
		
		searchString: function (data) {
			
			for (var i=0;i<data.length;i++)	{
				
				var dataString 						= data[i].string;
				var dataProp 							= data[i].prop;
				this.versionSearchString 	= data[i].versionSearch || data[i].identity;
				
				if (dataString) {
					if (dataString.indexOf(data[i].subString) != -1)
						return data[i].identity;
				}
				else if (dataProp)
					return data[i].identity;
				}
			},
			
		searchVersion: function (dataString) {
				
			var index = dataString.indexOf(this.versionSearchString);
			if (index == -1) return;
			return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
		},
		
		dataBrowser: [
			{
				string: navigator.userAgent,
				subString: "Chrome",
				identity: "Chrome"
			},
			{ 	string: navigator.userAgent,
				subString: "OmniWeb",
				versionSearch: "OmniWeb/",
				identity: "OmniWeb"
			},
			{
				string: navigator.vendor,
				subString: "Apple",
				identity: "Safari",
				versionSearch: "Version"
			},
			{
				prop: window.opera,
				identity: "Opera",
				versionSearch: "Version"
			},
			{
				string: navigator.vendor,
				subString: "iCab",
				identity: "iCab"
			},
			{
				string: navigator.vendor,
				subString: "KDE",
				identity: "Konqueror"
			},
			{
				string: navigator.userAgent,
				subString: "Firefox",
				identity: "Firefox"
			},
			{
				string: navigator.vendor,
				subString: "Camino",
				identity: "Camino"
			},
			{		// for newer Netscapes (6+)
				string: navigator.userAgent,
				subString: "Netscape",
				identity: "Netscape"
			},
			{
				string: navigator.userAgent,
				subString: "MSIE",
				identity: "Explorer",
				versionSearch: "MSIE"
			},
			{
				string: navigator.userAgent,
				subString: "Gecko",
				identity: "Mozilla",
				versionSearch: "rv"
			},
			{ 		// for older Netscapes (4-)
				string: navigator.userAgent,
				subString: "Mozilla",
				identity: "Netscape",
				versionSearch: "Mozilla"
			}
		],
		
		dataOS : [
			{
				string: navigator.platform,
				subString: "Win",
				identity: "Windows"
			},
			{
				string: navigator.platform,
				subString: "Mac",
				identity: "Mac"
			},
			{
				   string: navigator.userAgent,
				   subString: "iPhone",
				   identity: "iPhone/iPod"
		    },
			{
				string: navigator.platform,
				subString: "Linux",
				identity: "Linux"
			}
		]
	
	};
	
	BrowserDetect.init();

	// document.write('<p>Vous utilisez ' + BrowserDetect.browser + ' ' + BrowserDetect.version + ' sur ' + BrowserDetect.OS + '!</p>');

	return BrowserDetect;
}