META-INF.resources.oam.custom.inputHtml.kupu_kjax.js Maven / Gradle / Ivy

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JSF components and utilities that can be used with any JSF implementation. This library is based on the JSF1.1 version of Tomahawk, but with minor source code and build changes to take advantage of JSF2.0 features. A JSF2.0 implementation is required to use this version of the Tomahawk library.
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/*****************************************************************************
 *
 * Copyright (c) 2003-2005 Kupu Contributors. All rights reserved.
 *
 * This software is distributed under the terms of the Kupu
 * License. See LICENSE.txt for license text. For a list of Kupu
 * Contributors see CREDITS.txt.
 * 
 *****************************************************************************/
/* Javascript to aid migration page. */

function KJax() { this.request_queue = [];};
(function(p){
    p._loadXML = function(uri, callback, body, reload, extra) {
        function _sarissaCallback() {
            /* callback for Sarissa
            when the callback is called because the data's ready it
            will get the responseXML DOM and call user_callback
            with the DOM as the first argument and the uri loaded
            as the second

            note that this method should be called in the context of an 
            xmlhttp object
            */
            if (xmlhttp.readyState == 4) {
                self.xmlhttp = null;
                if (xmlhttp.status && xmlhttp.status != 200) {
                    var errmessage = 'Error '+xmlhttp.status+' loading '+(uri||'XML');
                    alert(errmessage);
                    throw "Error loading XML";
                };
                var dom = xmlhttp.responseXML;
                if (!dom || !dom.documentElement) { /* IE bug! */
                    dom = Sarissa.getDomDocument();
                    dom.loadXML(xmlhttp.responseText);
                }
                if (this.request_queue) {
                    /* Kick off the next chained request before trying
                     * to handle the result of the last one.
                     */
                    this._loadXML.apply(this, this.request_queue.splice(0,1));
                }
                callback.apply(self, [dom, uri, extra]);
            };
        };
        var self = this;
        /* Make sure our requests are single-threaded. */
        if (this.xmlhttp) {
            this.request_queue.push([uri, callback, body, reload, extra]);
        }
        /* load the XML from a uri
           calls callback with one arg (the XML DOM) when done
           the (optional) body arg should contain the body for the request
         */
        var xmlhttp = new XMLHttpRequest();
        this.xmlhttp = xmlhttp;
        var method = body?'POST':'GET';
        // be sure that body is null and not an empty string or
        // something
        body=body?body:null;

        try {
            xmlhttp.open(method, uri, true);
            xmlhttp.onreadystatechange = _sarissaCallback;
            if (method == "POST") {
                // by default, we would send a 'text/xml' request, which
                // is a dirty lie; explicitly set the content type to what
                // a web server expects from a POST.
                xmlhttp.setRequestHeader('content-type', 'application/x-www-form-urlencoded');
            };
            xmlhttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
            xmlhttp.send(body);
        } catch(e) {
            this.xmlhttp = null;
            if (e && e.name && e.message) { // Microsoft
                e = e.name + ': ' + e.message;
            }
            alert(e);
        }
    };
    p._xmlcallback = function(dom) {
        this.xmldata = dom;
        Sarissa.setXpathNamespaces(this.xmldata, "xmlns:kj='http://kupu.oscom.org/namespaces/kjax'");
        var nodes = this.xmldata.selectNodes("//*[@kj:mode]");
        for (var i = 0; i < nodes.length; i++) {
            var n = nodes[i];
            var mode = n.getAttribute('kj:mode');
            n = document.importNode(n, true);
            var id = n.getAttribute('id');
            var target;
            if (id) {
                target = document.getElementById(id);
            } else {
                target = document.getElementById('kupu-default-target');
                mode = 'append';
            }
            if (mode=='append') {
                while(n.firstChild) {
                    target.appendChild(n.firstChild);
                };
            } else if (mode=='replace') {
                Sarissa.copyChildNodes(n, target);
            } else if (mode=='prepend') {
                var t = target.firstChild;
                while (n.firstChild) {
                    target.insertBefore(n.firstChild, t);
                };
            };
        };
        this.nextRequest();
    };
    p.nextRequest = function() {
        var onload = this.xmldata.selectSingleNode('//*[@kj:load]');
        if (onload) {
            var js = onload.getAttribute('kj:load');
            if (js) { eval(js); };
        };
        var next = this.xmldata.selectSingleNode('//*[@kj:next]');
        if (next) {
            var xmluri = next.getAttribute('kj:next');
            var delay = next.getAttribute('kj:delay');
            if (delay) {
                timer_instance.registerFunction(this, this._loadXML, delay*1000, xmluri, this._xmlcallback);
            } else {
                this._loadXML(xmluri, this._xmlcallback);
            };
        } else {
            this.trace("complete");
        };
    };
    p.newRequest = function(uri) {
        this._loadXML(uri, this._xmlcallback);
    };
    p.clearLog = function() {
        var el = document.getElementById("log");
        while (el.firstChild) el.removeChild(el.firstChild);
    };
    p.submitForm = function(form, uri, extra) {
        var fields = [];
        function push(el, v) {
            fields.push(el.name+"="+encodeURIComponent(v));
        }
        for(var i=0; i < form.elements.length; i++)
        {
            var el = form.elements[i];
            var name = /input/i.test(el.tagName)?el.type:el.tagName;
            if (/checkbox|radio/i.test(name) && !el.checked) continue;
            if (/select/i.test(name)) {
                push(el, el.options[el.selectedIndex].value);
                continue;
            }
            if (/text|hidden|checkbox|radio|textarea/i.test(name)) {
                push(el, el.value);
            };
        }
        if (!uri) { uri = form.getAttribute('action'); };
        if (extra) {
            for (var name in extra) {
                fields.push(name+"="+encodeURIComponent(extra[name]));
            }
        }
        this.trace("submit form: "+uri);
        this._loadXML(uri, this._xmlcallback, fields.join('&'));
        return false;
    };
    p.trace = function(s) {
        var el = document.getElementById("log");
        if (el) el.appendChild(newElement("div", [s]));
    };
})(KJax.prototype);

var kj = new KJax();