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<!DOCTYPE html>
<!--
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.    
-->
<html manifest="cache-manifest.cmf">
<head>
<title></title>
<meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0"/> 
<meta name="apple-mobile-web-app-capable" content="yes"/>
<meta name="apple-mobile-web-app-status-bar-style" content="black"/>
<link rel="apple-touch-icon" href="/public/touchicon.png"/>
<base href="/"/>
<script type="text/javascript">

window.appcache = {};

/**
 * Get and cache a resource.
 */
appcache.get = function(uri) {
    var h = uri.indexOf('#');
    var u = h == -1? uri : uri.substring(0, h);

    // Get resource from local storage first
    var item = localStorage.getItem(u);
    if (item != null && item != '')
        return item;

    // Get resource from network
    var http = new XMLHttpRequest();
    http.open("GET", u, false);
    http.send(null);
    if (http.status == 200) {
        if (http.getResponseHeader("X-Login") != null) {
            if (log) log('http error', u, 'X-Login');
            // Redirect to login page if not signed in
            document.location = '/login/';
            return null;
        } else if (http.responseText == '' || http.getResponseHeader("Content-Type") == null) {
            if (log) log('http error', u, 'No-Content');
            return null;
        }
        localStorage.setItem(u, http.responseText);
        return http.responseText;
    }
    if (log) log('http error', u, http.status, http.statusText);
    // Redirect to login page if not signed in
    if (http.status == 403)
        document.location = '/login/';
    return null;
};

// Load Javascript and CSS
(function() {
    var bootjs = document.createElement('script');
    bootjs.type = 'text/javascript';
    bootjs.text = appcache.get('/all-min.js');
    document.head.appendChild(bootjs);
    document.head.appendChild(ui.declareCSS(appcache.get('/ui-min.css')));
})();

// Redirect to login page if not signed in
if (document.location.protocol == 'https:' && !ui.signedin())
    document.location = '/login/';

</script>
</head>
<body class="delayed" onload="onload();">
<div id="mainbodydiv" class="mainbodydiv">

<div id="headdiv" class="hsection">
<script type="text/javascript">
(function() {
$('headdiv').appendChild(ui.declareScript(appcache.get('/config-min.js')));
})();
</script>
</div>

<div id="content">
</div>

<script type="text/javascript">

/**
 * Get the app name
 */
var appname = location.pathname.split('/')[1];

// Set page title
document.title = appname;

/**
 * The main page div.
 */
var contentdiv = $('content');

/**
 * Initialize the app HTTP clients.
 */
var appWidget = sca.component('AppWidget');
var pagecomp = sca.reference(appWidget, 'pages');
var startcomp = sca.httpclient('start', '/' + appname + '/start');
var stopcomp = sca.httpclient('stop', '/' + appname + '/stop');
var timercomp = sca.httpclient('timer', '/' + appname + '/timer');
var animationcomp = sca.httpclient('animation', '/' + appname + '/animation');
var locationcomp = sca.httpclient('location', '/' + appname + '/location');

/**
 * Pre-fetch app resources.
 */
var appresources = [
    ['/all-min.js'],
    ['/ui-min.css'],
    ['/config-min.js'],
    ['/public/config-min.js']
];

/**
 * Handle application cache events.
 */
applicationCache.addEventListener('checking', function(e) {
    //log('appcache checking', e);
}, false);
applicationCache.addEventListener('error', function(e) {
    //log('appcache error', e);
}, false);
applicationCache.addEventListener('noupdate', function(e) {
    //log('appcache noupdate', e);
}, false);
applicationCache.addEventListener('downloading', function(e) {
    //log('appcache downloading', e);
}, false);
applicationCache.addEventListener('progress', function(e) {
    //log('appcache progress', e);
}, false);
applicationCache.addEventListener('updateready', function(e) {
    //log('appcache updateready', e);
    applicationCache.swapCache();
    //log('appcache swapped', e);
}, false);
applicationCache.addEventListener('cached', function(e) {
    //log('appcache cached', e);
    map(function(res) {
        appcache.get(res[0]);
    }, appresources);
}, false);

/**
 * Handle network offline/online events.
 */
window.addEventListener('offline', function(e) {
      //log('going offline');
}, false);
window.addEventListener('online', function(e) {
      //log('going online');
}, false);

//log(navigator.onLine? 'online' : 'offline');

/**
 * Find a named value in a tree of elements. The value name is given
 * as a list of ids.
 */
function namedvalue(l, id) {
    if (isNil(l))
        return null;
    var e = car(l);

    // Element matches id segment
    if (car(id) == elementName(e)) {

        // Found element matching the whole id path
        if (isNil(cdr(id)))
            return e;

        // Search for next id segments in child elements
        if (!elementHasValue(e)) {
            var v = namedvalue(elementChildren(e), cdr(id));
            if (v != null)
                return v;
        }
    }

    // Search for id through the whole element tree
    if (!elementHasValue(e)) {
        var v = namedvalue(elementChildren(e), id);
        if (v != null)
            return v;
    }
    return namedvalue(cdr(l), id);
}

/**
 * Return the value of an input element.
 */
function inputvalue(e) {
    if (e.className == 'entry' || e.className == 'password') {
        return car(childElements(e)).value;
    }
    if (e.className == 'button') {
        return car(childElements(e)).value;
    }
    if (e.className == 'checkbox') {
        if (!car(childElements(e)).checked)
            return null;
        return car(childElements(e)).value;
    }
    if (e.className == 'select') {
        return car(childElements(car(childElements(e)))).value;
    }
    return null;
};

/**
 * Set a value into a widget.
 */
function setwidgetvalue(e, dv) {
    var htattrs = namedElementChild("'htattrs", dv);

    function attr(ce) {
        return mklist(elementName(ce) == "'htstyle"? 'style' : elementName(ce).substring(1), elementHasValue(ce)? elementValue(ce) : elementChildren(ce));
    }

    function vattr(dv) {
        return (elementHasValue(dv) && !isNil(elementValue(dv)))? mklist(mklist('value', isNil(elementValue(dv))? '' : elementValue(dv))) : mklist();
    }

    function sattr(dv) {
        var s = namedElementChild("'htstyle", dv);
        return isNil(s)? mklist() : mklist(mklist('style', elementHasValue(s)? elementValue(s) : elementChildren(s)))
    }

    var attrs = append(append(isNil(htattrs)?  mklist() : map(attr, elementChildren(htattrs)), vattr(dv)), sattr(dv));

    // Set the attributes of the widget
    function setattrs(vsetter, attrs, ce) {
        return map(function(a) {
            if (car(a) == 'value')
                return vsetter(a, ce);

            if (car(a) == 'style') {
                // Split a style property between a style attribute
                // and a stylesheet definition in the document's head

                function prop(s) {
                    if (s == ';')
                        return '';
                    var i = s.indexOf('<style>');
                    if (i == -1)
                        return s;
                    var j = s.indexOf('</style>');
                    return s.substring(0, i) + prop(s.substring(j + 8));
                }

                function sheet(s) {
                    var i = s.indexOf('<style>');
                    if (i == -1)
                        return '';
                    var j = s.indexOf('</style>');
                    return s.substring(i + 7, j) + sheet(s.substring(j + 8));
                }

                var st = cadr(a).replace(new RegExp('{id}', 'g'), e.id);
                var p = prop(st);
                var s = sheet(st);

                // Define the stylesheet
                if (s != '') {
                    var esheet = ui.elementByID(contentdiv, 'style_' + e.id);
                    if (isNil(esheet)) {
                        var nesheet = document.createElement('style');
                        nesheet.id = 'style_' + e.id;
                        nesheet.type = 'text/css';
                        document.head.appendChild(nesheet);
                        nesheet.innerHTML = s;
                    } else {
                        esheet.innerHTML = s;
                    }
                }

                var aname = ce.style.webkitAnimationName;

                // Set the style attribute
                ce.setAttribute('style', p);

                // Restart current animation if necessary
                if (!isNil(aname) && ce.style.webkitAnimationName == aname) {
                    ce.style.webkitAnimationName = '';
                    setTimeout(function() {
                        ce.style.webkitAnimationName = aname;
                    }, 0);
                }
                return a;
            }

            ce.setAttribute(car(a), cadr(a));
            return a;
        }, attrs);
    }

    if (e.className == 'h1' || e.className == 'h2' || e.className == 'text' || e.className == 'section') {
        var ce = car(childElements(e));
        return setattrs(function(a, ce) { ce.innerHTML = cadr(a); }, attrs, ce);
    }
    if (e.className == 'entry' || e.className == 'password') {
        var ce = car(childElements(e));
        return setattrs(function(a, ce) { ce.defaultValue = cadr(a); }, attrs, ce);
    }
    if (e.className == 'button') {
        var ce = car(childElements(e));
        return setattrs(function(a, ce) { ce.value = cadr(a); }, attrs, ce);
    }
    if (e.className == 'checkbox') {
        var ce = car(childElements(e));

        function setcheckvalue(a, ce) {
            var v = cadr(a);
            ce.value = v;
            map(function(n) { if (n.nodeName == "SPAN") n.innerHTML = v; return n; }, nodeList(e.childNodes));
            return true;
        }

        return setattrs(setcheckvalue, attrs, ce);
    }
    if (e.className == 'select') {
        var ce = car(childElements(car(childElements(e))));

        function setselectvalue(a, ce) {
            var v = cadr(a);
            ce.value = v;
            ce.innerHTML = v;
            return true;
        }

        return setattrs(setselectvalue, attrs, ce);
    }
    if (e.className == 'list') {
        var dl = ui.datalist(isNil(dv)? mklist() : mklist(dv));
        e.innerHTML = dl;
        return dl;
    }
    if (e.className == 'table') {
        var dl = ui.datatable(isNil(dv)? mklist() : mklist(dv));
        e.innerHTML = dl;
        return dl;
    }
    if (e.className == 'link') {
        var ce = car(childElements(e));

        function setlinkvalue(a, ce) {
            var v = cadr(a);
            if (isList(v)) {
                ce.href = car(v);
                ce.innerHTML = cadr(v);
                return true;
            }
            ce.href = v;
            ce.innerHTML = v;
            return true;
        }

        return setattrs(setlinkvalue, attrs, ce);
    }
    if (e.className == 'img') {
        var ce = car(childElements(e));
        return setattrs(function(a, ce) { ce.setAttribute('src', cadr(a)); }, attrs, ce);
    }
    if (e.className == 'iframe') {
        var ce = car(childElements(e));
        return setattrs(function(a, ce) { ce.setAttribute('src', cadr(a)); }, attrs, ce);
    }
    return '';
};

/**
 * Update the app page with the given app data.
 */
function updatepage(l) {
    if (isNil(l))
        return true;

    // Update the widgets values
    function updatewidget(e) {
        var dv = namedvalue(l, map(function(t) { return "'" + t; }, e.id.split('.')));
        if (dv == null || isNil(dv))
            return e;
        setwidgetvalue(e, dv);
        return e;
    }

    map(updatewidget, filter(function(e) { return !isNil(e.id) && e.id.substring(0, 5) != 'page:'; }, nodeList(ui.elementByID(contentdiv, 'page').childNodes)));
    return true;
}

/**
 * Convert a document to application data.
 */
function docdata(doc) {
    if (isNil(doc))
        return null;

    if (json.isJSON(mklist(doc)))
        return json.readJSON(mklist(doc));

    if (atom.isATOMEntry(mklist(doc)))
        return atom.readATOMEntry(mklist(doc));

    if (atom.isATOMFeed(mklist(doc)))
        return atom.readATOMFeed(mklist(doc));

    return doc;
}

/**
 * Bind a handler to a widget.
 */
function bindwidgethandler(e, appname) {
    if (e.className == 'button') {
        var b = car(childElements(e));
        b.name = e.id;
        b.onclick = function() { return buttonClickHandler(b.value, appname); };
        return e;
    }
    if (e.className == 'link') {
        var l = car(childElements(e));
        var hr = l.href;
        if (hr.substring(0, 5) == 'link:' && hr.indexOf('://') == -1) {
            var f = function(e) {
                e.preventDefault();
                return buttonClickHandler(hr.substring(5), appname);
            };
            l.ontouchstart = l.onclick = f;
            l.href = 'javascript:void()';
        }
        return e;
    }
    if (e.className == 'entry' || e.className == 'password' || e.className == 'checkbox') {
        car(childElements(e)).name = e.id;
        return e;
    }
    if (e.className == 'select') {
        var ce = car(childElements(car(childElements(e))));
        ce.name = e.id;
        return e;
    }
    return e;
}

/**
 * Initial fixup of a widget.
 */
function fixupwidget(e) {
    if (e.className == 'h1' || e.className == 'h2' || e.className == 'text' || e.className == 'section') {
        if (e.className == 'section')
            e.style.width = '100%';
        var ce = car(childElements(e));
        if (ce.innerHTML == '=' + e.id)
            ce.innerHTML = '';
        return e;
    }
    if (e.className == 'entry' || e.className == 'password') {
        var ce = car(childElements(e));
        if (ce.defaultValue == '=' + e.id)
            ce.defaultValue = '';
        return e;
    }
    if (e.className == 'button') {
        var ce = car(childElements(e));
        if (ce.value == '=' + e.id)
            ce.value = '';
        return e;
    }
    if (e.className == 'checkbox') {
        var ce = car(childElements(e));
        if (ce.value == '=' + e.id) {
            ce.value = '';
            map(function(n) { if (n.nodeName == "SPAN") n.innerHTML = ''; return n; }, nodeList(e.childNodes));
        }
        return e;
    }
    if (e.className == 'select') {
        var ce = car(childElements(car(childElements(e))));
        if (ce.value == '=' + e.id) {
            ce.value = '';
            ce.innerHTML = '';
        }
        return e;
    }
    if (e.className == 'list') {
        car(childElements(e)).innerHTML = '';
        e.style.width = '100%';
        car(childElements(e)).style.width = '100%';
        return e;
    }
    if (e.className == 'table') {
        car(childElements(e)).innerHTML = '';
        e.style.width = '100%';
        car(childElements(e)).style.width = '100%';
        return e;
    }
    if (e.className == 'link') {
        var ce = car(childElements(e));
        if (ce.innerHTML == '=' + e.id)
            ce.innerHTML = '';
        return e;
    }
    if (e.className == 'img') {
        var ce = car(childElements(e));
        return e;
    }
    if (e.className == 'iframe') {
        var ce = car(childElements(e));
        e.innerHTML = '<iframe src="' + ce.href + '" frameborder="no" scrolling="no"></iframe>';
        return e;
    }
    return e;
}

/**
 * Set initial value of a widget.
 */
function initwidget(e) {
    if (!isNil(e.id) && e.id.substring(0, 5) != 'page:')
        setwidgetvalue(e, mklist());
    return e;
}

/**
 * Get app data from the main app page component.
 */
function getpagedata(appname) {
    try {

        // Display component data on the page
        function displaypage(doc) {
            updatepage(docdata(doc));
            return true;
        }

        // Eval a component init script
        function evalcompinit(doc) {
            if (isNil(doc))
                return true;
            var js = car(json.readJSON(mklist(doc)));
            if (!elementHasValue(js))
                return true;
            eval(elementValue(js));
            return true;
        }

        // Initial setup of a widget
        function setupwidget(e) {
            initwidget(e);
            fixupwidget(e);
            bindwidgethandler(e, appname);
        }

        // Setup the widgets
        map(setupwidget, filter(function(e) { return !isNil(e.id); }, nodeList(ui.elementByID(contentdiv, 'page').childNodes)));

        // Get the component app data
        startcomp.get(location.search, function(doc, e) {
            if (isNil(doc)) {
                log('error on get(start, ' + location.search + ')', e);
                return false;
            }

            // Display data on the page
            displaypage(doc);
        });

        // Get and eval the optional timer, animation and location watch setup scripts
        timercomp.get('setup', function(doc, e) {
            if (isNil(doc)) {
                log('error on get(timer, setup)', e);
                return false;
            }

            // Evaluate the component init expression
            return evalcompinit(doc);
        });
        animationcomp.get('setup', function(doc, e) {
            if (isNil(doc)) {
                log('error on get(animation, setup)', e);
                return false;
            }

            // Evaluate the component init expression
            return evalcompinit(doc);
        });
        locationcomp.get('setup', function(doc, e) {
            if (isNil(doc)) {
                log('error on get(location, setup)', e);
                return false;
            }

            // Evaluate the component init expression
            return evalcompinit(doc);
        });

        return true;

    } catch(e) {
        log('error in getpagedata()', e);
        return true;
    }
}

/**
 * Build a query string from the values of the page's input fields.
 */
function compquery() {
    function queryarg(e) {
        return e.id + '=' + inputvalue(e);
    }

    function childrenList(n) {
        return append(nodeList(n.childNodes), reduce(append, mklist(), map(childrenList, nodeList(n.childNodes))));
    }

    var args = map(queryarg, filter(function(e) { return !isNil(e.id) && !isNil(inputvalue(e)); }, childrenList(ui.elementByID(contentdiv, 'page'))));

    // Append current location properties if known
    if (!isNil(geoposition)) {
        var g = geoposition;
        args = append(args, mklist('latitude=' + g.coords.latitude, 'longitude=' + g.coords.longitude, 'altitude=' + g.coords.altitude,
                        'accuracy=' + g.coords.accuracy, 'altitudeAccuracy=' + g.coords.altitudeAccuracy, 'heading=' + g.coords.heading,
                        'speed=' + g.coords.speed));
    }

    return '?' + args.join('&');
}

/**
 * Handle a button click event.
 */
function buttonClickHandler(id, appname) {
    try {
        var uri = compquery();
        return sca.component(id, appname).get(uri, function(doc, e) {
            if (isNil(doc)) {
                log('error on get(button, ' + uri + ')', e);
                return false;
            }

            // Inject data into the page
            updatepage(docdata(doc));
        });
    } catch(e) {
        log('error in buttonClickHandler()', e);
        return true;
    }
}

/**
 * Handle a timer interval event.
 */
function intervalHandler() {
    try {
        var uri = compquery();
        return timercomp.get(uri, function(doc, e) {
            if (isNil(doc)) {
                log('error on get(timer, ' + uri + ')', e);
                return false;
            }

            // Inject data into the page
            updatepage(docdata(doc));
        });
    } catch(e) {
        log('error in intervalHandler()', e);
        return true;
    }
}

/**
 * Setup an interval timer.
 */
function setupIntervalHandler(msec) {
    intervalHandler();
    try {
        return setInterval(intervalHandler, msec);
    } catch(e) {
        log('error in setupIntervalHandler()', e);
        return true;
    }
}

/**
 * Handle an animation event.
 */
var animationData = null;
var gettingAnimationData = false;
var currentAnimationData = null;
var animationLoop = 0;
var currentAnimationLoop = 0;

function animationHandler() {
    try {
        function applyAnimation() {
            // Update page with current animation data
            updatepage(car(currentAnimationData));

            // End of animation?
            if (isNil(cdr(currentAnimationData))) {
                if (currentAnimationLoop == -1) {
                    // Repeat current animation forever
                    currentAnimationData = animationData;
                    return true;
                }

                currentAnimationLoop = currentAnimationLoop - 1;
                if (currentAnimationLoop <= 0) {
                    // Get next animation data
                    currentAnimationData = null;
                    animationData = null;
                    return true;
                }

                // Repeat animation
                currentAnimationData = animationData;
                return true;
            }

            // Move to the next animation frame
            currentAnimationData = cdr(currentAnimationData);
            return true;
        }

        // Get new animation data if necessary
        if (isNil(animationData)) {
            if (gettingAnimationData)
                return true;
            var uri = compquery();
            return animationcomp.get(uri, function(doc, e) {
                if (isNil(doc)) {
                    log('error on get(animation, ' + uri + ')', e);
                    return false;
                }

                // Apply the new animation
                currentAnimationData = docdata(doc);
                currentAnimationLoop = animationLoop;
                gettingAnimationData = false;
                applyAnimation();
            });
        }

        // Apply the current animation
        return applyAnimation();

    } catch(e) {
        log('error in animationHandler()', e);
        return true;
    }
}

/**
 * Setup an animation.
 */
function setupAnimationHandler(msec, loop) {
    animationLoop = loop;
    animationHandler();
    try {
        return setInterval(animationHandler, msec);
    } catch(e) {
        log('error in setupAnimationHandler()', e);
        return true;
    }
}

/**
 * Handle a location watch event.
 */
var locationWatch = null;
var geoposition = null;

function locationHandler(pos) {
    try {
        geoposition = pos;
        var uri = compquery();
        return locationcomp.get(uri, function(doc, e) {
            if (isNil(doc)) {
                log('error on get(location, ' + uri + ')', e);
                return false;
            }

            // Inject data into the page
            updatepage(docdata(doc));
        });
    } catch(e) {
        return locationErrorHandler(e);
    }
}

function locationErrorHandler(e) {
    log('location error', e);
    if (!isNil(locationWatch)) {
        try {
            navigator.geolocation.clearWatch(locationWatch);
        } catch(e) {}
        locationWatch = null;
    }
    return true;
}

/**
 * Setup a location watch handler.
 */
function setupLocationHandler() {
    function installLocationHandler() {
        if (!isNil(locationWatch))
            return true;
        try {
            locationWatch = navigator.geolocation.watchPosition(locationHandler, locationErrorHandler);
        } catch(e) {
            log('error in installLocationHandler()', e);
        }
        return true;
    }

    installLocationHandler();
    setInterval(installLocationHandler, 10000);
    return true;
}

/**
 * Return the page in an ATOM entry.
 */
function atompage(doc) {
    var entry = atom.readATOMEntry(mklist(doc));
    if (isNil(entry))
        return mklist();
    var content = namedElementChild("'content", car(entry));
    if (content == null)
        return mklist();
    return elementChildren(content);
}

// Load the app page
pagecomp.get(appname, function(doc, e) {
    //log('page get');
    if (isNil(doc)) {
        log('error getting app page', e);
        return false;
    }

    // Set the app HTML page into the content div
    //log('page', doc);
    var el = atompage(doc);
    contentdiv.innerHTML = writeStrings(writeXML(el, false));

    // Merge in the app data
    getpagedata(appname);
});

/**
 * Handle orientation change.
 */
document.body.onorientationchange = function(e) {
    //log('onorientationchange');

    // Scroll to the top and hide the address bar
    window.scrollTo(0, 0);

    return true;
};

/**
 * Document load post processing.
 */
function onload() {
    //log('onload');

    // Show the page
    document.body.style.visibility = 'visible';

    // Scroll to the top and hide the address bar
    window.scrollTo(0, 0);
    return true;
}

</script>

<div id="footdiv" class="fsection">
</div>

</div>
</body>
</html>