source: trunk/themes/default/js/scripts.js @ 8449

function phpWGOpenWindow(theURL,winName,features)
{
        img = new Image();
        img.src = theURL;
        if (img.complete)
        {
                var width=img.width+40, height=img.height+40;
        }
        else
        {
                var width=640, height=480;
                img.onload = function () { newWin.resizeTo( img.width+50, img.height+100); };
        }
        newWin = window.open(theURL,winName,features+',left=2,top=1,width=' + width + ',height=' + height);
}

function popuphelp(url)
{
        window.open( url, 'dc_popup',
                'alwaysRaised=yes,dependent=yes,toolbar=no,height=420,width=500,menubar=no,resizable=yes,scrollbars=yes,status=no'
        );
}

function pwgBind(object, method) {
        var args = Array.prototype.slice.call(arguments,2);
        return function() {
                        return method.apply(object, args.concat(Array.prototype.slice.call(arguments,0)) );
        }
}

function PwgWS(urlRoot)
{
        this.urlRoot = urlRoot;
        this.options = {
                method: "GET",
                async: true,
                onFailure: null,
                onSuccess: null
        };
};

PwgWS.prototype = {
        callService : function(method, parameters, options)
        {
                if (options)
                {
                        for (var prop in options)
                                this.options[prop] = options[prop];
                }
                try { this.xhr = new XMLHttpRequest();}
                catch(e) {
                        try { this.xhr = new ActiveXObject('Msxml2.XMLHTTP'); }
                        catch(e) {
                                try { this.xhr = new ActiveXObject('Microsoft.XMLHTTP'); }
                                catch (e){
                                        this.error(0, "Cannot create request object");
                                        return;
                                }
                        }
                }
                this.xhr.onreadystatechange = pwgBind(this, this.onStateChange);

                var url = this.urlRoot+"ws.php?format=json";

                var body = "method="+method;
                if (parameters)
                {
                        for (var prop in parameters)
                        {
                                if ( typeof parameters[prop] == 'object' && parameters[prop])
                                {
                                        for (var i=0; i<parameters[prop].length; i++)
                                                body += "&"+prop+"[]="+encodeURIComponent(parameters[prop][i]);
                                }
                                else
                                        body += "&"+prop+"="+encodeURIComponent(parameters[prop]);
                        }
                }

                if (this.options.method != "POST" )
                {
                        url += "&"+body;
                        body = null;
                }
                this.xhr.open(this.options.method, url, this.options.async);
                if (this.options.method == "POST" )
                        this.xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                try {
                        this.xhr.send(body);
                } catch(e) {
                        this.error(0, e.message);
                }
        },

        onStateChange: function() {
                var readyState = this.xhr.readyState;
                if (readyState==4)
                {
                        try {
                                this.respondToReadyState(readyState);
                        } finally {
                                this.cleanup();
                        }
                }
        },

        error: function( httpCode, text )
        {
                !this.options.onFailure || this.options.onFailure( httpCode, text);
                this.cleanup();
        },

        respondToReadyState: function(readyState)
        {
                var xhr = this.xhr;
                if (readyState==4 && xhr.status == 200)
                {
                        var resp;
                        try {
                                resp = window.JSON && window.JSON.parse ? window.JSON.parse( xhr.responseText ) : (new Function("return " + xhr.responseText))();
                        }
                        catch (e) {
                                this.error( 200, e.message + '\n' + xhr.responseText.substr(0,512) );
                        }
                        if (resp!=null)
                        {
                                if (resp.stat==null)
                                        this.error( 200, "Invalid response" );
                                else if (resp.stat=='ok')
                                        !this.options.onSuccess || this.options.onSuccess( resp.result );
                                else
                                        this.error( 200, resp.err + " " + resp.message);
                        }
                }
                if (readyState==4 && xhr.status != 200)
                        this.error( xhr.status, xhr.statusText );
        },

        cleanup: function()
        {
                if (this.xhr) this.xhr.onreadystatechange = null;
                this.xhr = null;
                this.options.onFailure = this.options.onSuccess = null;
        },

        xhr: null
}

function pwgAddEventListener(elem, evt, fn)
{
        if (window.addEventListener)
                elem.addEventListener(evt, fn, false);
        else
                elem.attachEvent('on'+evt, fn);         
}