Initial commit.

Copy from p4.

16 files changed, 1975 insertions, 0 deletions

diff --git a/src/.DS_Store b/src/.DS_Store
new file mode 100644
index 0000000..5008ddf
--- /dev/null
+++ b/src/.DS_Store
diff --git a/src/eventhandler.js b/src/eventhandler.js
new file mode 100755
index 0000000..1c6dd8a
--- /dev/null
+++ b/src/eventhandler.js
@@ -0,0 +1,194 @@
+
+var topZ = 1;
+var startX;
+var startY;
+startX = 100;
+startY = 100;
+nextID = 1;
+
+var images = new Array;
+
+function elmentId(pointer)
+{
+    return "divWidget" + pointer;
+}
+
+function createWidgetElement(pointer)
+{
+    var element = document.createElement("img");
+    element.id = elmentId(pointer);
+    element["pointer"] = pointer;
+    element.className = "divWidget";
+    element.style.visibility = "visible";
+    document.body.appendChild(element);
+
+    dojo.connect(element, 'onmousedown', sendMousePressed);
+    dojo.connect(element, 'onmouseup', sendMouseReleased);
+    dojo.connect(element, 'onkeypress', sendKeyPress);
+
+    return element;
+}
+
+function createInputElement(pointer)
+{
+    var inputElement = document.createElement("input");
+    inputElement.id = elmentId(pointer);
+    inputElement.pointer = pointer;
+    inputElement.className = "nativeWidget";
+    inputElement.style.visibility = "visible";
+    document.body.appendChild(inputElement);
+
+    dojo.connect(inputElement, 'onkeypress', sendInputElementTextUpdate);
+
+    return inputElement;
+}
+
+function createElement(widgetType, id)
+{
+    if (widgetType == "lineedit")
+        return createInputElement(id);
+    else
+        return createWidgetElement(id);
+}
+
+function updateTreeZIndices(element, index)
+{
+    if (!element)
+        return;
+    element.style.zIndex = index;
+    ++index;
+    for (key in element.childWidgets) {
+        var childId = element.childWidgets[key];
+        var childElement = document.getElementById(child);
+        if (childElement == element)
+            continue;
+        updateTreeZIndices(childElement, index);
+    }
+}
+
+function removeItem(array, item)
+{
+    for(key in array) {
+        if (array[key] == item)
+            array.splice(key, 1);
+    }
+}
+
+function eventHandler(text)
+{
+    if (text == "") {
+        return;
+    }
+
+//    alert ("event text"  + text);
+    var array = eval("(" + text + ")");
+
+    for (key in array)
+    {
+        var event = array[key];
+        var type = array[key].type
+        var widgetType = array[key].widgetType;
+        var widget = array[key].id;
+        var id = elmentId(widget);
+        var element = document.getElementById(id);
+
+        if (!element)
+            element = createElement(widgetType, widget);
+
+        //        alert("key" + key + "type" + type);
+        if (type == "update") {
+//            alert("update" + widget);
+            var source = "http://INSERT_HOSTNAME/json" + JSON.stringify({ "type" : "img", "id" : widget, "rand" : Math.random()});
+
+            element.style.zIndex = 1;
+            element.src = source;
+            element.style.visibility = "visible";
+        } else if (type == "geometry") {
+            element.style.left = array[key].x;
+            element.style.top = array[key].y;
+            element.style.width = array[key].w;
+            element.style.height = array[key].h;
+        } else if (type == "hide") {
+            element.style.visibility = "hidden";
+        } else if (type == "show") {
+            element.style.visibility = "visible";
+        } else if (type == "parentChange") {
+     //       alert("parentChange");
+            var parentPointer = array[key].parent;
+            var parentId = elmentId(parentPointer);
+
+            if (element.parentWidgetId && element.parentWidgetId != 0) {
+                var oldParent = document.getElementById(element.parentWidgetId);
+                removeItem(oldParent.childWidgets, id);
+            }
+
+            if (parentPointer == 0) {
+                element.parentWidgetId = 0;
+//                element.style.zIndex = 1;
+                updateTreeZIndices(element, 1);
+                continue;
+            }
+
+            var parent = document.getElementById(parentId);
+            if (!parent)
+                parent = createElement(widgetType, parentPointer);
+            //alert("parent change" + parent + " " + element);
+            //parent = createImageElement(parentId);
+
+            if (!parent.childWidgets)
+                parent.childWidgets = new Array();
+            parent.childWidgets.push(id);
+            element.parentWidgetId = parentId;
+
+            var newIndex = parent.style.zIndex;
+            ++newIndex;
+            //element.style.zIndex = newIndex;
+            updateTreeZIndices(element, newIndex);
+            //element.style.zIndex = parent.style.zIndex + 1;
+        } else if (type == "textUpdate") {
+            element.value = event.text;
+        }
+    }
+}
+
+function sendMouseEventReq(description, xpos, ypos) {
+    request("http://INSERT_HOSTNAME/" +  description + "-" + xpos + "-" + ypos, eventHandler);
+}
+
+function sendMousePressed(event) {
+    sendMouseEventReq("mousepress", event.clientX, event.clientY);
+}
+
+function sendMouseReleased(event) {
+    sendMouseEventReq("mouserelease", event.clientX, event.clientY);
+}
+
+function sendKeyPress(event) {
+    if (event.charCode)
+        request("http://INSERT_HOSTNAME/" +  "keypress-" + event.charCode, eventHandler);
+    else
+        request("http://INSERT_HOSTNAME/" +  "keypress-" + event.keyCode, eventHandler);
+}
+
+function sendInputElementTextUpdate(event)
+{
+//    alert(event.charCode + " " + event.keyCode + " " + event.target.value + " " + event.target.pointer)
+//    alert(" " +  event.target.value);
+//    var id = event.target.value
+      var text = event.target.value;
+      if (event.charCode)
+          text += String.fromCharCode(event.charCode);
+      else if (event.keyCode == 8)
+          text = text.slice(0, text.length - 1);
+      else
+          return;
+      var source = "http://INSERT_HOSTNAME/json" + JSON.stringify({ "type" : "textupdate", "id" : event.target.pointer, "text" : text });
+      request(source, eventHandler);
+}
+
+function myload()
+{
+    request(contentUrl, eventHandler)
+}
+
+dojo.addOnLoad(myload);
diff --git a/src/eventqueue.cpp b/src/eventqueue.cpp
new file mode 100755
index 0000000..bab7fbe
--- /dev/null
+++ b/src/eventqueue.cpp
@@ -0,0 +1,286 @@
+#include "eventqueue.h"
+#include <QImage>
+
+bool imagesEqual(const QImage &a, const QImage &b, QRect rect)
+{
+    if (a.size() != b.size())
+        return false;
+
+    for (int y = rect.top(); y < rect.bottom(); ++y)
+        for (int x = rect.left(); x < rect.right(); ++x)
+            if (a.pixel(x,y) != b.pixel(x,y))
+                return false;
+
+    return true;
+}
+
+class QLineEditAccess : public QLineEdit
+{
+public:
+    void emitTextEdited(const QString &text) { QLineEdit::textChanged(text); QLineEdit::textEdited(text); }
+};
+
+QString widgetGetText(QWidget *widget)
+{
+    if (QLineEdit *lineEdit = qobject_cast<QLineEdit *>(widget)) {
+        return lineEdit->text();
+    } else if (QLabel *label = qobject_cast<QLabel*>(widget)) {
+        return label->text();
+    } else {
+        return QString(" ");
+    }
+}
+
+EventQueue::EventQueue(Session *session)
+:m_session(session)
+{
+    reset();
+}
+
+void EventQueue::setSession(Session *session)
+{
+    m_session = session;
+    reset();
+}
+
+void EventQueue::reset()
+{
+    qDebug() << "reset";
+    images.clear();
+    geometries.clear();
+}
+
+void EventQueue::handleRequest(HttpRequest *request, HttpResponse *response)
+{
+//    qDebug() << "handle request" << request->path();
+    const QByteArray path = request->path();
+
+    if (path == "/content") {
+        qDebug() << "content";
+        response->setBody(queueToByteArray());
+    } else if (path == "/idle") {
+        qDebug() << "idle";
+        response->setBody(queueToByteArray());
+
+    // If the part starts with "/josn" then the rest of the string is an json-encoded
+    // string object.
+    } else if (path.startsWith("/json")) {
+        QByteArray jsonText = path.mid(5); // remove "/json"
+
+        // replace symbols that can't be a part of the url text.
+        jsonText.replace("%7B", "{");
+        jsonText.replace("%7D", "}");
+        jsonText.replace("%22", "\"");
+
+        qDebug() << "json request" << jsonText;
+        json_object* request = json_tokener_parse(jsonText.data());
+        json_object* type = json_object_object_get(request, "type");
+
+        QByteArray typeText = json_object_get_string(type);
+//        qDebug() << typeText;
+
+        if (typeText == "img") {
+            json_object* idObject = json_object_object_get(request, "id");
+            const int id = json_object_get_int(idObject);
+            qDebug() << "id" << this << id << images.value(id).size();
+
+            QByteArray block;
+            QBuffer buffer(&block);
+            buffer.open(QIODevice::WriteOnly);
+            QImageWriter writer(&buffer, "png");
+            writer.write(images.value(id));
+
+            response->setBody(block);
+            response->setContentType("image/png");
+        } else if (typeText == "textupdate") {
+            json_object* idObject = json_object_object_get(request, "id");
+            const int id = json_object_get_int(idObject);
+            json_object* tmp = json_object_object_get(request, "text");
+            QByteArray text = json_object_get_string(tmp);
+            ((QLineEdit *)(id))->setText(text);
+            ((QLineEditAccess *)(id))->emitTextEdited(text);
+        }
+
+        json_object_put(request); //free
+    }
+}
+
+void EventQueue::addUpdateEvent(int id, const QImage &image, QRect updateRect)
+{
+      qDebug() << "addUpdateEvent" << this << id << image.size();
+
+    if (images.contains(id) == false) {
+        qDebug() << "new image for" << id;
+        images.insert(id, image);
+    } else {
+        if (imagesEqual(image, images.value(id), updateRect)) {
+          qDebug() << "discard update" << id;
+            return;
+        } else {
+        //  image.save("images/" + widget->objectName() + ".png");
+            images.insert(id, image);
+            qDebug() << "accept update" << id;
+        }
+    }
+
+    addEvent(id, EventEntry::Update);
+}
+
+void EventQueue::addGeometryEvent(int id, QRect globalGeometry)
+{
+    if (geometries[id] == globalGeometry) {
+        return;
+    }
+    geometries[id] = globalGeometry;
+    addEvent(id, EventEntry::Geometry);
+}
+
+void EventQueue::addParentChangeEvent(int id)
+{
+//    qDebug() << "parentchanged";
+    addEvent(id, EventEntry::ParentChange);
+}
+
+void EventQueue::addEvent(int id, EventEntry::Type type)
+{
+    EventEntry entry(id, type);
+
+    if (events.contains(entry)) {
+//        qDebug() << "event already in queue";
+        return;
+    }
+
+    events.enqueue(entry);
+//    qDebug() << json_object_to_json_string(toJson(entry));
+
+    if (m_session)
+        m_session->contentAvailable();
+}
+
+QByteArray EventQueue::queueToByteArray()
+{
+    if (events.isEmpty())
+        return QByteArray();
+
+    json_object *array = json_object_new_array();
+    while (events.isEmpty() == false) {
+        json_object_array_add(array, toJson(events.dequeue()));
+    }
+
+    QByteArray text(json_object_to_json_string(array));
+
+    qDebug() << "sending event text" << text;
+    // json_free(array);
+
+   return text;
+
+}
+
+json_object *EventQueue::toJson(const EventEntry &event) const
+{
+    switch(event.type)
+    {
+    case EventEntry::Update:
+        return jsonUpdateEvent(event);
+    case EventEntry::Show:
+        return jsonShowEvent(event);
+    case EventEntry::ShowLineEdit:
+        return jsonShowLineEditEvent(event);
+    case EventEntry::Hide:
+        return jsonHideEvent(event);
+    case EventEntry::Geometry:
+        return jsonGeometryEvent(event);
+    case EventEntry::ParentChange:
+        return jsonParentChangeEvent(event);
+    case EventEntry::TextUpdate:
+        return jsonTextUpdateEvent(event);
+    default:
+        return json_object_new_object();
+    break;
+    }
+}
+
+json_object *EventQueue::jsonShowEvent(const EventEntry &event) const
+{
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("show"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    json_object_object_add(obj, "widgetType", toJsonWidgetType((QWidget *)event.id));
+    return obj;
+}
+
+json_object *EventQueue::jsonShowLineEditEvent(const EventEntry &event) const
+{
+    qDebug() << "### Show line edit";
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("showLineEdit"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    return obj;
+}
+
+
+json_object *EventQueue::jsonHideEvent(const EventEntry &event) const
+{
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("hide"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    json_object_object_add(obj, "widgetType", toJsonWidgetType((QWidget *)event.id));
+    return obj;
+}
+
+json_object *EventQueue::jsonUpdateEvent(const EventEntry &event) const
+{
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("update"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    json_object_object_add(obj, "widgetType", toJsonWidgetType((QWidget *)event.id));
+    return obj;
+}
+
+json_object *EventQueue::jsonGeometryEvent(const EventEntry &event) const
+{
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("geometry"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    json_object_object_add(obj, "widgetType", toJsonWidgetType((QWidget *)event.id));
+
+    QRect geometry = geometries.value(event.id);
+    json_object_object_add(obj, "x", json_object_new_int(geometry.x()));
+    json_object_object_add(obj, "y", json_object_new_int(geometry.y()));
+    json_object_object_add(obj, "w", json_object_new_int(geometry.width()));
+    json_object_object_add(obj, "h", json_object_new_int(geometry.height()));
+
+    return obj;
+}
+
+json_object *EventQueue::jsonParentChangeEvent(const EventEntry &event) const
+{
+//    qDebug() << "parentchanged send";
+    QWidget *parent = ((QWidget *)event.id)->parentWidget();
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("parentChange"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    json_object_object_add(obj, "widgetType", toJsonWidgetType(parent));
+    json_object_object_add(obj, "parent", json_object_new_int((int)(parent)));
+
+    return obj;
+}
+
+json_object *EventQueue::jsonTextUpdateEvent(const EventEntry &event) const
+{
+    struct json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "type", json_object_new_string("textUpdate"));
+    json_object_object_add(obj, "id", json_object_new_int(event.id));
+    json_object_object_add(obj, "widgetType", toJsonWidgetType((QWidget *)event.id));
+    json_object_object_add(obj, "text", json_object_new_string(widgetGetText((QLineEdit *)event.id).toLocal8Bit().data()));
+    return obj;
+}
+
+json_object *EventQueue::toJsonWidgetType(QWidget *widget) const
+{
+    if (qobject_cast<QLineEdit *>(widget))
+        return json_object_new_string("lineedit");
+    if (qobject_cast<QLabel *>(widget))
+        return json_object_new_string("label");
+    return json_object_new_string("generic");
+}
diff --git a/src/eventqueue.h b/src/eventqueue.h
new file mode 100755
index 0000000..76680bb
--- /dev/null
+++ b/src/eventqueue.h
@@ -0,0 +1,59 @@
+#ifndef EVENTQUEUE_H
+#define EVENTQUEUE_H
+
+#include <QtGui>
+#include <json.h>
+#include "server.h"
+
+struct EventEntry
+{
+    enum Type { Noop, Update, Show, Hide, Geometry, ShowLineEdit, ParentChange, TextUpdate };
+
+    inline EventEntry(int id, Type type)
+        :id(id), type(type) {}
+
+    inline EventEntry():id(0), type(Noop) {};
+    
+    inline bool operator==(const EventEntry &other) const
+    {
+        return (id == other.id && type == other.type);
+    }
+
+    int id;
+    Type type;
+};
+
+class EventQueue : public QObject
+{
+public:
+    EventQueue(Session *session = 0);
+    void setSession(Session *session);
+    void reset();
+        
+    void handleRequest(HttpRequest *request, HttpResponse *response);
+    
+    void addUpdateEvent(int id, const QImage &image, QRect updateRect);
+    void addGeometryEvent(int id, QRect globalGeometry);
+    void addParentChangeEvent(int id);
+    void addEvent(int id, EventEntry::Type type);
+    QByteArray queueToByteArray();
+    json_object *toJson(const EventEntry &event) const;
+    json_object *jsonShowEvent(const EventEntry &event) const;
+    json_object *jsonShowLineEditEvent(const EventEntry &event) const;
+    json_object *jsonHideEvent(const EventEntry &event) const;
+    json_object *jsonUpdateEvent(const EventEntry &event) const;
+    json_object *jsonGeometryEvent(const EventEntry &event) const;
+    json_object *jsonParentChangeEvent(const EventEntry &event) const;
+    json_object *jsonTextUpdateEvent(const EventEntry &event) const;
+    json_object *toJsonWidgetType(QWidget *widget) const;
+
+    bool isEmpty() { return events.isEmpty(); }
+//private:
+    Session *m_session; 
+    QQueue<EventEntry> events;
+    QHash<int, QImage> images;
+    QHash<int, QRect> geometries;
+};
+
+#endif
+
diff --git a/src/index.html b/src/index.html
new file mode 100755
index 0000000..ee1382f
--- /dev/null
+++ b/src/index.html
@@ -0,0 +1,33 @@
+


+<html>


+<head>


+


+<style type="text/css">


+


+.divWidget {


+    position: absolute;


+    padding:0px; margin:0px;


+}


+


+.nativeWidget {


+    position: absolute;


+    padding:0px; margin:0px;


+}


+


+</style>


+


+


+<script type="text/javascript" src=":dojo.js" djConfig="parseOnLoad: true"></script>


+<script type="text/javascript" src=":json2.js"></script>


+<script type="text/javascript" src=":sessionhandler.js"></script>


+<script type="text/javascript" src=":eventhandler.js"></script>


+


+


+</head>


+<body>


+<div id="foo" style="width:10000px">


+ </div>


+


+


+</body>


+</html>


diff --git a/src/json2.js b/src/json2.js
new file mode 100755
index 0000000..241a271
--- /dev/null
+++ b/src/json2.js
@@ -0,0 +1,478 @@
+/*
+    http://www.JSON.org/json2.js
+    2008-11-19
+
+    Public Domain.
+
+    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
+
+    See http://www.JSON.org/js.html
+
+    This file creates a global JSON object containing two methods: stringify
+    and parse.
+
+        JSON.stringify(value, replacer, space)
+            value       any JavaScript value, usually an object or array.
+
+            replacer    an optional parameter that determines how object
+                        values are stringified for objects. It can be a
+                        function or an array of strings.
+
+            space       an optional parameter that specifies the indentation
+                        of nested structures. If it is omitted, the text will
+                        be packed without extra whitespace. If it is a number,
+                        it will specify the number of spaces to indent at each
+                        level. If it is a string (such as '\t' or '&nbsp;'),
+                        it contains the characters used to indent at each level.
+
+            This method produces a JSON text from a JavaScript value.
+
+            When an object value is found, if the object contains a toJSON
+            method, its toJSON method will be called and the result will be
+            stringified. A toJSON method does not serialize: it returns the
+            value represented by the name/value pair that should be serialized,
+            or undefined if nothing should be serialized. The toJSON method
+            will be passed the key associated with the value, and this will be
+            bound to the object holding the key.
+
+            For example, this would serialize Dates as ISO strings.
+
+                Date.prototype.toJSON = function (key) {
+                    function f(n) {
+                        // Format integers to have at least two digits.
+                        return n < 10 ? '0' + n : n;
+                    }
+
+                    return this.getUTCFullYear()   + '-' +
+                         f(this.getUTCMonth() + 1) + '-' +
+                         f(this.getUTCDate())      + 'T' +
+                         f(this.getUTCHours())     + ':' +
+                         f(this.getUTCMinutes())   + ':' +
+                         f(this.getUTCSeconds())   + 'Z';
+                };
+
+            You can provide an optional replacer method. It will be passed the
+            key and value of each member, with this bound to the containing
+            object. The value that is returned from your method will be
+            serialized. If your method returns undefined, then the member will
+            be excluded from the serialization.
+
+            If the replacer parameter is an array of strings, then it will be
+            used to select the members to be serialized. It filters the results
+            such that only members with keys listed in the replacer array are
+            stringified.
+
+            Values that do not have JSON representations, such as undefined or
+            functions, will not be serialized. Such values in objects will be
+            dropped; in arrays they will be replaced with null. You can use
+            a replacer function to replace those with JSON values.
+            JSON.stringify(undefined) returns undefined.
+
+            The optional space parameter produces a stringification of the
+            value that is filled with line breaks and indentation to make it
+            easier to read.
+
+            If the space parameter is a non-empty string, then that string will
+            be used for indentation. If the space parameter is a number, then
+            the indentation will be that many spaces.
+
+            Example:
+
+            text = JSON.stringify(['e', {pluribus: 'unum'}]);
+            // text is '["e",{"pluribus":"unum"}]'
+
+
+            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
+            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'
+
+            text = JSON.stringify([new Date()], function (key, value) {
+                return this[key] instanceof Date ?
+                    'Date(' + this[key] + ')' : value;
+            });
+            // text is '["Date(---current time---)"]'
+
+
+        JSON.parse(text, reviver)
+            This method parses a JSON text to produce an object or array.
+            It can throw a SyntaxError exception.
+
+            The optional reviver parameter is a function that can filter and
+            transform the results. It receives each of the keys and values,
+            and its return value is used instead of the original value.
+            If it returns what it received, then the structure is not modified.
+            If it returns undefined then the member is deleted.
+
+            Example:
+
+            // Parse the text. Values that look like ISO date strings will
+            // be converted to Date objects.
+
+            myData = JSON.parse(text, function (key, value) {
+                var a;
+                if (typeof value === 'string') {
+                    a =
+/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
+                    if (a) {
+                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
+                            +a[5], +a[6]));
+                    }
+                }
+                return value;
+            });
+
+            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
+                var d;
+                if (typeof value === 'string' &&
+                        value.slice(0, 5) === 'Date(' &&
+                        value.slice(-1) === ')') {
+                    d = new Date(value.slice(5, -1));
+                    if (d) {
+                        return d;
+                    }
+                }
+                return value;
+            });
+
+
+    This is a reference implementation. You are free to copy, modify, or
+    redistribute.
+
+    This code should be minified before deployment.
+    See http://javascript.crockford.com/jsmin.html
+
+    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
+    NOT CONTROL.
+*/
+
+/*jslint evil: true */
+
+/*global JSON */
+
+/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
+    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
+    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
+    lastIndex, length, parse, prototype, push, replace, slice, stringify,
+    test, toJSON, toString, valueOf
+*/
+
+// Create a JSON object only if one does not already exist. We create the
+// methods in a closure to avoid creating global variables.
+
+if (!this.JSON) {
+    JSON = {};
+}
+(function () {
+
+    function f(n) {
+        // Format integers to have at least two digits.
+        return n < 10 ? '0' + n : n;
+    }
+
+    if (typeof Date.prototype.toJSON !== 'function') {
+
+        Date.prototype.toJSON = function (key) {
+
+            return this.getUTCFullYear()   + '-' +
+                 f(this.getUTCMonth() + 1) + '-' +
+                 f(this.getUTCDate())      + 'T' +
+                 f(this.getUTCHours())     + ':' +
+                 f(this.getUTCMinutes())   + ':' +
+                 f(this.getUTCSeconds())   + 'Z';
+        };
+
+        String.prototype.toJSON =
+        Number.prototype.toJSON =
+        Boolean.prototype.toJSON = function (key) {
+            return this.valueOf();
+        };
+    }
+
+    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
+        gap,
+        indent,
+        meta = {    // table of character substitutions
+            '\b': '\\b',
+            '\t': '\\t',
+            '\n': '\\n',
+            '\f': '\\f',
+            '\r': '\\r',
+            '"' : '\\"',
+            '\\': '\\\\'
+        },
+        rep;
+
+
+    function quote(string) {
+
+// If the string contains no control characters, no quote characters, and no
+// backslash characters, then we can safely slap some quotes around it.
+// Otherwise we must also replace the offending characters with safe escape
+// sequences.
+
+        escapable.lastIndex = 0;
+        return escapable.test(string) ?
+            '"' + string.replace(escapable, function (a) {
+                var c = meta[a];
+                return typeof c === 'string' ? c :
+                    '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+            }) + '"' :
+            '"' + string + '"';
+    }
+
+
+    function str(key, holder) {
+
+// Produce a string from holder[key].
+
+        var i,          // The loop counter.
+            k,          // The member key.
+            v,          // The member value.
+            length,
+            mind = gap,
+            partial,
+            value = holder[key];
+
+// If the value has a toJSON method, call it to obtain a replacement value.
+
+        if (value && typeof value === 'object' &&
+                typeof value.toJSON === 'function') {
+            value = value.toJSON(key);
+        }
+
+// If we were called with a replacer function, then call the replacer to
+// obtain a replacement value.
+
+        if (typeof rep === 'function') {
+            value = rep.call(holder, key, value);
+        }
+
+// What happens next depends on the value's type.
+
+        switch (typeof value) {
+        case 'string':
+            return quote(value);
+
+        case 'number':
+
+// JSON numbers must be finite. Encode non-finite numbers as null.
+
+            return isFinite(value) ? String(value) : 'null';
+
+        case 'boolean':
+        case 'null':
+
+// If the value is a boolean or null, convert it to a string. Note:
+// typeof null does not produce 'null'. The case is included here in
+// the remote chance that this gets fixed someday.
+
+            return String(value);
+
+// If the type is 'object', we might be dealing with an object or an array or
+// null.
+
+        case 'object':
+
+// Due to a specification blunder in ECMAScript, typeof null is 'object',
+// so watch out for that case.
+
+            if (!value) {
+                return 'null';
+            }
+
+// Make an array to hold the partial results of stringifying this object value.
+
+            gap += indent;
+            partial = [];
+
+// Is the value an array?
+
+            if (Object.prototype.toString.apply(value) === '[object Array]') {
+
+// The value is an array. Stringify every element. Use null as a placeholder
+// for non-JSON values.
+
+                length = value.length;
+                for (i = 0; i < length; i += 1) {
+                    partial[i] = str(i, value) || 'null';
+                }
+
+// Join all of the elements together, separated with commas, and wrap them in
+// brackets.
+
+                v = partial.length === 0 ? '[]' :
+                    gap ? '[\n' + gap +
+                            partial.join(',\n' + gap) + '\n' +
+                                mind + ']' :
+                          '[' + partial.join(',') + ']';
+                gap = mind;
+                return v;
+            }
+
+// If the replacer is an array, use it to select the members to be stringified.
+
+            if (rep && typeof rep === 'object') {
+                length = rep.length;
+                for (i = 0; i < length; i += 1) {
+                    k = rep[i];
+                    if (typeof k === 'string') {
+                        v = str(k, value);
+                        if (v) {
+                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
+                        }
+                    }
+                }
+            } else {
+
+// Otherwise, iterate through all of the keys in the object.
+
+                for (k in value) {
+                    if (Object.hasOwnProperty.call(value, k)) {
+                        v = str(k, value);
+                        if (v) {
+                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
+                        }
+                    }
+                }
+            }
+
+// Join all of the member texts together, separated with commas,
+// and wrap them in braces.
+
+            v = partial.length === 0 ? '{}' :
+                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
+                        mind + '}' : '{' + partial.join(',') + '}';
+            gap = mind;
+            return v;
+        }
+    }
+
+// If the JSON object does not yet have a stringify method, give it one.
+
+    if (typeof JSON.stringify !== 'function') {
+        JSON.stringify = function (value, replacer, space) {
+
+// The stringify method takes a value and an optional replacer, and an optional
+// space parameter, and returns a JSON text. The replacer can be a function
+// that can replace values, or an array of strings that will select the keys.
+// A default replacer method can be provided. Use of the space parameter can
+// produce text that is more easily readable.
+
+            var i;
+            gap = '';
+            indent = '';
+
+// If the space parameter is a number, make an indent string containing that
+// many spaces.
+
+            if (typeof space === 'number') {
+                for (i = 0; i < space; i += 1) {
+                    indent += ' ';
+                }
+
+// If the space parameter is a string, it will be used as the indent string.
+
+            } else if (typeof space === 'string') {
+                indent = space;
+            }
+
+// If there is a replacer, it must be a function or an array.
+// Otherwise, throw an error.
+
+            rep = replacer;
+            if (replacer && typeof replacer !== 'function' &&
+                    (typeof replacer !== 'object' ||
+                     typeof replacer.length !== 'number')) {
+                throw new Error('JSON.stringify');
+            }
+
+// Make a fake root object containing our value under the key of ''.
+// Return the result of stringifying the value.
+
+            return str('', {'': value});
+        };
+    }
+
+
+// If the JSON object does not yet have a parse method, give it one.
+
+    if (typeof JSON.parse !== 'function') {
+        JSON.parse = function (text, reviver) {
+
+// The parse method takes a text and an optional reviver function, and returns
+// a JavaScript value if the text is a valid JSON text.
+
+            var j;
+
+            function walk(holder, key) {
+
+// The walk method is used to recursively walk the resulting structure so
+// that modifications can be made.
+
+                var k, v, value = holder[key];
+                if (value && typeof value === 'object') {
+                    for (k in value) {
+                        if (Object.hasOwnProperty.call(value, k)) {
+                            v = walk(value, k);
+                            if (v !== undefined) {
+                                value[k] = v;
+                            } else {
+                                delete value[k];
+                            }
+                        }
+                    }
+                }
+                return reviver.call(holder, key, value);
+            }
+
+
+// Parsing happens in four stages. In the first stage, we replace certain
+// Unicode characters with escape sequences. JavaScript handles many characters
+// incorrectly, either silently deleting them, or treating them as line endings.
+
+            cx.lastIndex = 0;
+            if (cx.test(text)) {
+                text = text.replace(cx, function (a) {
+                    return '\\u' +
+                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
+                });
+            }
+
+// In the second stage, we run the text against regular expressions that look
+// for non-JSON patterns. We are especially concerned with '()' and 'new'
+// because they can cause invocation, and '=' because it can cause mutation.
+// But just to be safe, we want to reject all unexpected forms.
+
+// We split the second stage into 4 regexp operations in order to work around
+// crippling inefficiencies in IE's and Safari's regexp engines. First we
+// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
+// replace all simple value tokens with ']' characters. Third, we delete all
+// open brackets that follow a colon or comma or that begin the text. Finally,
+// we look to see that the remaining characters are only whitespace or ']' or
+// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
+
+            if (/^[\],:{}\s]*$/.
+test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
+replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
+replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
+
+// In the third stage we use the eval function to compile the text into a
+// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
+// in JavaScript: it can begin a block or an object literal. We wrap the text
+// in parens to eliminate the ambiguity.
+
+                j = eval('(' + text + ')');
+
+// In the optional fourth stage, we recursively walk the new structure, passing
+// each name/value pair to a reviver function for possible transformation.
+
+                return typeof reviver === 'function' ?
+                    walk({'': j}, '') : j;
+            }
+
+// If the text is not JSON parseable, then a SyntaxError is thrown.
+
+            throw new SyntaxError('JSON.parse');
+        };
+    }
+})();
diff --git a/src/multiuserserver.cpp b/src/multiuserserver.cpp
new file mode 100755
index 0000000..cb2010a
--- /dev/null
+++ b/src/multiuserserver.cpp
@@ -0,0 +1,55 @@
+#include "multiuserserver.h"
+
+#include <json.h>
+#include <eventqueue.h>
+#include <server.h>
+
+SessionServer::SessionServer(QWidget *widget, Session *session)
+{
+    rootWidget = widget;
+    widgetEventHandler = new WidgetEventHandler(rootWidget);
+        
+    rootWidget->setAttribute(Qt::WA_DontShowOnScreen);
+    rootWidget->show();
+    
+    // Make the initial show non-special by processing the show events
+    // before enabling the event handler. We want to support refreshing
+    // the ui, every request of "/content" should give a complete ui refresh.
+    qApp->processEvents();
+    qApp->processEvents();
+    
+    widgetEventHandler->setRootWidget(rootWidget);
+    widgetEventHandler->setSession(session);
+    
+    connect(session, SIGNAL(requestContent(HttpRequest *, HttpResponse *)), 
+            this,       SLOT(handleRequest(HttpRequest *, HttpResponse *)));
+}
+
+void SessionServer::handleRequest(HttpRequest *request, HttpResponse *response)
+{
+    qDebug() << "SingleUserServer::handleRequest!" << request->path();
+    widgetEventHandler->handleRequest(request, response);
+
+    if (response->body == QByteArray()) {
+        FileServer::handleRequest(request, response);
+    }
+}
+
+MultiUserServer::MultiUserServer()
+{
+    connect(&server, SIGNAL(sessionBegin(Session *)), 
+               this, SLOT(newSession_internal(Session *)));
+}
+
+
+void MultiUserServer::newSession_internal(Session *session)
+{
+    QWidget *rootWidget = 0;
+    emit newSession(&rootWidget, session);
+    if (rootWidget == 0) {
+        qWarning("rootWidget is NULL.");
+        return;
+    }
+    
+    new SessionServer(rootWidget, session);
+}
diff --git a/src/multiuserserver.h b/src/multiuserserver.h
new file mode 100755
index 0000000..4095c19
--- /dev/null
+++ b/src/multiuserserver.h
@@ -0,0 +1,33 @@
+#ifndef MULTIUSER_H
+#define MULTIUSER_H
+
+#include <QtGui>
+#include <server.h>
+#include <widgeteventhandler.h>
+
+class SessionServer : public FileServer
+{
+Q_OBJECT
+public:
+    SessionServer(QWidget *widget, Session *session);
+    void handleRequest(HttpRequest *request, HttpResponse *response);
+    
+    QWidget *rootWidget;
+    WidgetEventHandler *widgetEventHandler;
+};
+
+
+class MultiUserServer : public QObject
+{
+Q_OBJECT
+public:
+    MultiUserServer();
+signals:
+    void newSession(QWidget **rootWidget, Session *session);
+private slots:
+    void newSession_internal(Session *session);
+private:
+    Server server;
+};
+
+#endif
diff --git a/src/server.cpp b/src/server.cpp
new file mode 100755
index 0000000..d806284
--- /dev/null
+++ b/src/server.cpp
@@ -0,0 +1,289 @@
+#include "server.h"
+#include <time.h>
+
+HttpRequest::HttpRequest()
+{
+}
+
+HttpRequest::HttpRequest(const QList<QByteArray> &text)
+:m_text(text) { parseText(); }
+
+HttpRequest::HttpRequest(QTcpSocket *socket)
+:m_socket(socket) { readText(); parseText(); }
+
+QByteArray HttpRequest::path()
+{
+    return m_path;
+}
+
+QByteArray HttpRequest::cookies()
+{
+    return m_cookies;
+}
+
+QList<QNetworkCookie> HttpRequest::parsedCookies()
+{
+    return m_parsedCookies;
+}
+
+QByteArray HttpRequest::hostName()
+{
+    return m_hostName;
+}
+
+void HttpRequest::readText()
+{
+    // TODO fix denial-of-service attack
+    while (m_socket->canReadLine()) {
+        m_text.append(m_socket->readLine());
+    }   
+//    qDebug() << "req" << m_text;
+}
+
+void HttpRequest::parseText()
+{
+    foreach (const QByteArray &line, m_text) {
+        if (line.startsWith("GET")) {
+             m_path = line.mid(4).split(' ').at(0); // ### assumes well-formed string
+        } else if (line.startsWith("Cookie:")) {
+               qDebug() << "cookie line" << line.simplified();
+             //qDebug() << line.split(':').at(1).simplified();
+             m_cookies = line.split(':').at(1).simplified();
+            
+            
+
+             m_parsedCookies = QNetworkCookie::parseCookies(m_cookies);
+        } else if (line.startsWith("Host")) {
+            QByteArray hostline = line.split(' ').at(1); // ###
+            hostline.chop(2); // remove newline
+            m_hostName = hostline;
+        }
+    }
+}
+
+HttpResponse::HttpResponse()
+: contentType("text/html") { }
+
+void HttpResponse::setBody(const QByteArray &body)
+{
+    this->body = body;
+}
+
+void HttpResponse::setCookie(const QByteArray &name, const QByteArray &value)
+{
+    cookie = (name +"="+ value);
+}
+
+void HttpResponse::setContentType(const QByteArray &contentType)
+{
+    this->contentType = contentType;
+}
+
+QByteArray HttpResponse::toText()
+{
+    time_t currentTime = time(0);
+
+    QByteArray text = 
+    QByteArray("HTTP/1.1 200 OK \r\n")
+    + QByteArray("Date: ") + QByteArray(asctime(gmtime(&currentTime))) + QByteArray("")
+    + QByteArray("Content-Type: " + contentType + " \r\n")
+    + QByteArray("Content-Length: " + QByteArray::number(body.length())  + "\r\n")
+    + QByteArray("Cace-control: no-cache \r\n");
+    
+    if (cookie.isEmpty() == false) {
+        text+= "Set-Cookie: " + cookie + "\r\n";
+    }
+    
+    text+= QByteArray("\r\n")
+    + body;
+    return text;
+}
+
+Session::Session(Server *server, int sessionId)
+:m_sessionId(sessionId), m_idleSocket(0), m_server(server)
+{
+
+}
+
+int Session::sessionId()
+{
+    return m_sessionId;
+}
+
+void Session::setIdleSocket(QTcpSocket *socket)
+{
+    m_idleSocket = socket;
+}
+
+QTcpSocket * Session::idleSocket()
+{
+    return m_idleSocket;
+}
+
+void Session::emitRequestContent(HttpRequest *request, HttpResponse *response)
+{
+    emit requestContent(request, response);
+}
+
+void Session::contentAvailable()
+{
+    m_server->contentAvailable(this);
+}
+
+void Session::idleSocketDisconnect()
+{
+//    qDebug() << "idleSocketDisconnect";
+    m_idleSocket = 0;
+}
+
+Server::Server()
+{
+    connect(this, SIGNAL(newConnection()), SLOT(connectionAvailable()));
+    int port = 1818;
+    listen(QHostAddress::Any, port);
+    qDebug() << QString("Server running on: http://" + QHostInfo::localHostName() + ":" + QString::number(port) + "/");
+    nextCookieId = qrand();
+}
+
+void Server::printRequest(const QList<QByteArray> &request)
+{
+    foreach (const QByteArray &line, request) {
+        qDebug() << line;
+    }
+}
+
+void Server::contentAvailable(Session *session)
+{
+//    qDebug() << "content available!";
+    QTcpSocket *socket = session->m_idleSocket;
+    if (socket == 0)
+        return;
+
+    disconnect(socket, SIGNAL(disconnected()), session, SLOT(idleSocketDisconnect()));
+    session->m_idleSocket = 0;
+    session->emitRequestContent(&session->m_idleRequest, &session->m_idleResponse);
+    socket->write(session->m_idleResponse.toText());
+}
+
+void Server::connectionAvailable()
+{
+    QTcpSocket *socket = nextPendingConnection();
+    connect(socket, SIGNAL(readyRead()), this, SLOT(dataOnSocket())); // ### race condition?
+}
+
+void Server::dataOnSocket()
+{
+    QTcpSocket * socket = static_cast<QTcpSocket *>(sender());
+
+    qDebug() << "";
+    qDebug() << "request";
+
+    HttpRequest request(socket);
+
+    int sessionId = 0;
+    
+    qDebug() << "cookies" << request.cookies();
+    foreach (QNetworkCookie cookie, request.parsedCookies()) {
+        if (cookie.name() == "qtcookie") {
+            sessionId = cookie.value().toInt();
+        }
+    }
+
+    if (sessionId == 0 && request.path().contains("favicon.ico")) {
+        // Helloo Opera, which request favicon.ico without setting
+        // the session id cookie.
+        HttpResponse response;
+        socket->write(response.toText());
+        return;
+    }
+
+    qDebug() << "sessionId" << sessionId;
+
+    HttpResponse response;
+    Session *session = activeSessions.value(sessionId);
+
+    if (session == 0) { 
+        // ### accept unknown sessions for now, TODO do authentication here.
+        qDebug() << "new session for" << sessionId;
+        
+
+        sessionId = nextCookieId;
+        nextCookieId = qrand(); // ###
+
+        response.setCookie("qtcookie", QByteArray::number(sessionId)); // set new.
+     
+        session = new Session(this, sessionId);
+        activeSessions.insert(sessionId, session);
+
+//        qDebug() << "new session" << sessionId << session;
+
+        emit sessionBegin(session);
+                       
+    } else {
+ //       qDebug() << "found session for" << sessionId;
+    }
+
+    // Strip away the page ids: "-pageId="
+/*
+    int index = request.m_path.indexOf("-pageId=");
+    if (index != -1) {
+        request.m_path.chop(request.m_path.count() - index);
+    }
+*/
+    session->emitRequestContent(&request, &response);
+
+    const QByteArray path = request.path();
+   
+    // The "/idle" request signals that the content server can send more events.
+    // If there are no more events, save this connection and keep it open.
+
+//    if (path == "/idle")
+//        qDebug() << response.body;
+    if (path.startsWith("/idle") && response.body == QByteArray()) {
+        // Keep one socket for each connection, the html spec allows
+        // only two connections between a web browser and a server.
+        if (session->m_idleSocket == 0) {
+            connect(socket, SIGNAL(disconnected()), session, SLOT(idleSocketDisconnect()));
+            session->m_idleSocket = socket;
+            session->m_idleRequest = request;
+            session->m_idleResponse = response;
+        }
+//        qDebug() << "idle socket" << socket;
+        return;
+    }
+
+//    qDebug() << "socket write response";
+//    qDebug() << "response" << response.toText();
+    socket->write(response.toText());
+//    qDebug() << "socket write response done";
+}
+
+void FileServer::handleRequest(HttpRequest *request, HttpResponse *response)
+{
+    if (response->body != QByteArray())
+        return;
+    
+    const QByteArray path = request->path();
+    QByteArray filePath =  path.right(path.size() - 1); // remove leading '/'
+            
+//    qDebug() << "file server handle request" << path <<  filePath;
+            
+    if (filePath == "")
+        filePath = ":index.html";
+    
+    QFile file(filePath); // ### contain
+    if (file.exists() == false) {
+//        qDebug() << "no file" << filePath;
+        return;
+    }
+
+    file.open(QIODevice::ReadOnly);
+    QByteArray fileContents = file.readAll();
+    fileContents.replace("INSERT_HOSTNAME", request->hostName());
+    static int pageId = 0;
+/*
+    if (fileContents.contains("INSERT_PAGE_ID"))
+        fileContents.replace("INSERT_PAGE_ID", QByteArray::number(++pageId));
+*/
+    response->setBody(fileContents);
+}
diff --git a/src/server.h b/src/server.h
new file mode 100755
index 0000000..353753e
--- /dev/null
+++ b/src/server.h
@@ -0,0 +1,96 @@
+#ifndef CONTENTSERVER_H
+#define CONTENTSERVER_H
+
+#include <QtCore>
+#include <QtNetwork>
+
+class HttpRequest
+{
+public:
+    HttpRequest();
+    HttpRequest(const QList<QByteArray> &text);
+    HttpRequest(QTcpSocket *socket);
+    QByteArray path();
+    QByteArray cookies();
+    QList<QNetworkCookie> parsedCookies();
+    QByteArray hostName();
+//    QHash<QByteArray, QByteArray> cookieValues();
+//private:
+    void readText();
+    void parseText();
+    QByteArray m_path;
+    QByteArray m_cookies;
+    QList<QNetworkCookie> m_parsedCookies;
+    QByteArray m_hostName;
+    QList<QByteArray> m_text;
+    QTcpSocket *m_socket;
+};
+
+class HttpResponse
+{
+public:
+    HttpResponse();
+    void setBody(const QByteArray &body);
+    void setCookie(const QByteArray &name, const QByteArray &value);
+    void setContentType(const QByteArray &contentType);
+//    void setLastModified(QDateTime lastModified, QDateTime expires);
+    QByteArray toText();
+
+    QByteArray body;
+    QByteArray cookie;
+    QByteArray contentType;
+};
+
+class Server;
+class Session : public QObject
+{
+Q_OBJECT
+public:
+    Session(Server *server, int sessionId);
+    int sessionId();
+    void setIdleSocket(QTcpSocket *socket);
+    QTcpSocket * idleSocket();
+    void emitRequestContent(HttpRequest *request, HttpResponse *response);
+signals:
+    void sessionEnd();
+    void requestContent(HttpRequest *request, HttpResponse *response);
+public slots:
+    void contentAvailable();
+    void idleSocketDisconnect();
+public:
+    int m_sessionId;
+    QTcpSocket *m_idleSocket;
+    HttpRequest m_idleRequest;
+    HttpResponse m_idleResponse;
+    Server *m_server;
+};
+
+class Server : public QTcpServer
+{
+Q_OBJECT
+public:
+    Server();
+signals:
+//    void authenticate(Session *session);
+    void sessionBegin(Session *session);
+    void sessionEnd(int sessionId);
+public slots:
+//    void authenticated(Session *session);
+    void contentAvailable(Session *session);
+private slots:
+    void connectionAvailable();
+    void dataOnSocket();
+private:
+    void printRequest(const QList<QByteArray> &request);
+    QHash<int, Session *> activeSessions;
+    int nextCookieId;
+};
+
+class FileServer : public QObject
+{
+Q_OBJECT
+public slots:
+    virtual void handleRequest(HttpRequest *request, HttpResponse *response);
+};
+
+#endif
diff --git a/src/sessionhandler.js b/src/sessionhandler.js
new file mode 100755
index 0000000..9e33eb8
--- /dev/null
+++ b/src/sessionhandler.js
@@ -0,0 +1,47 @@
+
+var idleUrl;
+var contentUrl;
+var unloadUrl;
+var hasIdler = false;
+
+function request(theurl, handler)
+{
+    dojo.xhrGet( {
+        // The following URL must match that used to test the server.
+        url: theurl,
+        timeout: 0, // Time in milliseconds
+
+        // The LOAD function will be called on a successful response.
+        load: function(response, ioArgs) { 
+            if (theurl == idleUrl)
+                hasIdler = false;
+            handler(response);
+            if (hasIdler == false) {
+                hasIdler = true;
+                request(idleUrl, handler);
+            }
+        },
+
+        // The ERROR function will be called in an error case.
+        error: function(response, ioArgs) { 
+          console.error("HTTP status code: ", ioArgs.xhr.status); 
+          return response;
+          }
+       });
+}
+
+function onUnload()
+{
+   request(unloadUrl);
+}
+
+function onLoad()
+{
+    idleUrl = "http://INSERT_HOSTNAME/idle";
+    contentUrl = "http://INSERT_HOSTNAME/content";
+    unloadUrl = "http://INSERT_HOSTNAME/unload";
+}
+
+dojo.addOnLoad(onLoad);
+//dojo.addOnUnload(onUnload);
+
diff --git a/src/singleuserserver.cpp b/src/singleuserserver.cpp
new file mode 100755
index 0000000..6186618
--- /dev/null
+++ b/src/singleuserserver.cpp
@@ -0,0 +1,51 @@
+#include "singleuserserver.h"
+
+#include <json.h>
+#include <eventqueue.h>
+#include <server.h>
+
+void SingleUserServer::setRootWidget(QWidget *widget)
+{
+    rootWidget = widget;
+//    rootWidget->setAttribute(Qt::WA_DontShowOnScreen);
+    rootWidget->show();
+   
+     // Make the initial show non-special by processing the show events
+    // before enabling the event handler. We want to support refreshing
+    // the ui, every request of "/content" should give a complete ui refresh.
+    qApp->processEvents();
+    qApp->processEvents();
+
+    connect(&server, SIGNAL(sessionBegin(Session *)), 
+               this, SLOT(newSession(Session *)));
+
+    widgetEventHandler = new WidgetEventHandler(rootWidget);
+    widgetEventHandler->setRootWidget(rootWidget);
+}
+
+
+void SingleUserServer::newSession(Session *session)
+{
+    if (widgetEventHandler->session()) {
+        // session already active, refuse connection.
+        //  return;
+    }
+    
+     qDebug() << "new session";
+
+    widgetEventHandler->setSession(session);
+    
+    connect(session, SIGNAL(requestContent(HttpRequest *, HttpResponse *)), 
+            this,       SLOT(handleRequest(HttpRequest *, HttpResponse *)));
+}
+
+void SingleUserServer::handleRequest(HttpRequest *request, HttpResponse *response)
+{
+    widgetEventHandler->handleRequest(request, response);
+
+    // Call the file sever if the request wasn't handled.
+    if (response->body == QByteArray()) {
+        FileServer::handleRequest(request, response);
+    }
+}
+
diff --git a/src/singleuserserver.h b/src/singleuserserver.h
new file mode 100755
index 0000000..5f6a450
--- /dev/null
+++ b/src/singleuserserver.h
@@ -0,0 +1,22 @@
+#ifndef SINGLEUSER_H
+#define SINGLEUSER_H
+
+#include <QtGui>
+#include <server.h>
+#include <widgeteventhandler.h>
+
+class SingleUserServer : public FileServer
+{
+Q_OBJECT
+public:
+    void setRootWidget(QWidget *widget);
+private slots:
+    void newSession(Session *session);
+    void handleRequest(HttpRequest *request, HttpResponse *response);
+private:
+    WidgetEventHandler *widgetEventHandler;
+    Server server;
+    QWidget *rootWidget;
+};
+
+#endif
diff --git a/src/src.qrc b/src/src.qrc
new file mode 100755
index 0000000..a7897f9
--- /dev/null
+++ b/src/src.qrc
@@ -0,0 +1,8 @@
+ <!DOCTYPE RCC><RCC version="1.0">
+ <qresource>
+     <file>sessionhandler.js</file>
+     <file>eventhandler.js</file>
+     <file>json2.js</file>
+     <file>index.html</file>
+ </qresource>
+ </RCC>
\ No newline at end of file
diff --git a/src/widgeteventhandler.cpp b/src/widgeteventhandler.cpp
new file mode 100755
index 0000000..e876482
--- /dev/null
+++ b/src/widgeteventhandler.cpp
@@ -0,0 +1,282 @@
+#include <QtGui>
+#include "widgeteventhandler.h"
+
+
+QWidget * findEventTarget(QWidget *root, QPoint pos)
+{
+    QWidget *current = root;
+    QWidget *next = current->childAt(pos);
+
+    while (next) {
+        current = next;
+        next = current->childAt(pos);
+    }
+    return current;
+}
+
+
+WidgetEventHandler::WidgetEventHandler(QObject *parent)
+: QObject(parent), graphicsWidget(false), grabbing(false)
+{
+    focusWidget = 0;
+}
+
+void WidgetEventHandler::setRootWidget(QWidget *root)
+{
+    qDebug() << "set root widget" << root;
+    rootWidget = root;
+    recursivelyInstallEventHandler(root);
+}
+
+
+void WidgetEventHandler::recursivelyInstallEventHandler(QWidget *widget)
+{
+    widget->installEventFilter(this);
+
+//    qDebug() << widget->metaObject()->className() << widget->objectName();
+
+    if (QLineEdit *lineEdit = qobject_cast<QLineEdit *>(widget)) {
+        connect(lineEdit, SIGNAL(textChanged(const QString &)), this, SLOT(lineEditTextChange()));
+    }
+
+    foreach (QWidget *child, widget->findChildren<QWidget *>()) {
+        recursivelyInstallEventHandler(child);
+    }
+}
+
+void WidgetEventHandler::setSession(Session *session)
+{
+    events.setSession(session);
+}
+
+Session *WidgetEventHandler::session()
+{
+    return events.m_session;
+}
+
+void WidgetEventHandler::addPendingUpdate(QWidget* widget, const QRect &rect)
+{
+    if (pendingUpdates.isEmpty())
+        QTimer::singleShot(0, this, SLOT(updatePendingWidgets()));
+
+    pendingUpdates.insert(widget, rect);
+}
+
+bool WidgetEventHandler::eventFilter(QObject *object, QEvent *event)
+{
+    QWidget *widget = qobject_cast<QWidget *>(object);
+
+    if (event->type() == QEvent::Paint) {
+        if (QLabel *label = qobject_cast<QLabel *>(widget)) {
+            events.addEvent((int)widget, EventEntry::TextUpdate);
+        }
+
+        if (!grabbing) {
+            qDebug() << " add paint update" << object;
+            addPendingUpdate(widget, static_cast<QPaintEvent*>(event)->rect());
+        }
+    }
+
+    if (event->type() == QEvent::Show) {
+//        qDebug() << "show" << object;
+        // Add immediate show update if we have an image to serve.
+        if (events.images.contains((int)widget)) {
+            addShowEvent(widget);
+        }
+
+        // Add pending paint update
+        addPendingUpdate(widget, widget->rect());
+
+        recursivelyAddShow(widget);
+    }
+
+    if (event->type() == QEvent::Hide) {
+//        qDebug() << "hide" << object;
+        events.addEvent((int)widget, EventEntry::Hide);
+        recursivelyAddHide(widget);
+    }
+
+    if (event->type() == QEvent::Move) {
+        QRect geometry = globalGeometry(widget);
+//        if (object->metaObject()->className() == "QPushbutton")
+//        qDebug() << "move geometry" << object->metaObject()->className() << geometry;
+
+        events.addGeometryEvent((int)widget, geometry);
+    }
+
+    if (event->type() == QEvent::Resize) {
+        QRect geometry = globalGeometry(widget);
+
+//        if (object->metaObject()->className() == "QPushbutton")
+//            qDebug() << "resize geometry" << geometry;
+
+        events.addGeometryEvent((int)widget, geometry);
+    }
+
+    if (event->type() == QEvent::ParentChange) {
+        qDebug() << "parentChange" << widget << widget->parentWidget();
+        events.addParentChangeEvent((int)widget);
+    }
+
+    return false;
+}
+
+void WidgetEventHandler::updatePendingWidgets()
+{
+    const QHash<QWidget *, QRect>::const_iterator end = pendingUpdates.end();
+    QHash<QWidget *, QRect>::const_iterator it = pendingUpdates.begin();
+    while(it != end) {
+        widgetPaint(it.key(), it.value());
+        ++it;
+    }
+    pendingUpdates.clear();
+}
+
+void WidgetEventHandler::handleRequest(HttpRequest *request, HttpResponse *response)
+{
+    const QByteArray path = request->path();
+    qDebug() << "request" << path;
+    if (path.startsWith("/mousepress") || path.startsWith("/mouserelease")) {
+//        qDebug() << "handle mouse press";
+        handleMousePress(path);
+    } else if (path.startsWith("/keypress") || path.startsWith("/keyrelease")) {
+//        qDebug() << "handle key press";
+        handleKeyPress(path);
+    } else {
+        if (path.startsWith("/content")) {
+            events.reset(); // refresh everything
+            recursivelyAddUpdate(rootWidget);
+        }
+        events.handleRequest(request, response);
+    }
+}
+
+void WidgetEventHandler::handleMousePress(const QByteArray &message)
+{
+    QList<QByteArray> tokens = message.split('-');
+    QPoint p(tokens.at(1).toInt(), tokens.at(2).toInt()); // ### assumes well-formed string
+
+    QWidget *target = findEventTarget(rootWidget, p);
+//    qDebug() << "target" << target;
+
+    QPoint local = target->mapFrom(rootWidget, p);
+
+    if (message.startsWith("/mousepress")) {
+        QMouseEvent press(QEvent::MouseButtonPress, local ,  Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
+        QApplication::sendEvent(target, &press);
+    } else {
+        QMouseEvent release(QEvent::MouseButtonRelease, local ,  Qt::LeftButton, Qt::LeftButton, Qt::NoModifier);
+        QApplication::sendEvent(target, &release);
+        focusWidget = target;
+    }
+}
+
+void WidgetEventHandler::handleKeyPress(const QByteArray &message)
+{
+    if (!focusWidget)
+        return;
+
+    QList<QByteArray> tokens = message.split('-');
+    int code = tokens.at(1).toInt(); // ###
+    QChar c(code);
+
+    if (code == 8) {
+//                qDebug() << "backspace";
+        QKeyEvent press(QEvent::KeyPress, Qt::Key_Backspace, Qt::NoModifier, QString());
+        QKeyEvent release(QEvent::KeyRelease, Qt::Key_Backspace, Qt::NoModifier, QString());
+        QApplication::sendEvent(focusWidget, &press);
+        QApplication::sendEvent(focusWidget, &release);
+    } else {
+        QKeyEvent press(QEvent::KeyPress, code, Qt::NoModifier, c);
+        QKeyEvent release(QEvent::KeyRelease, code, Qt::NoModifier, c);
+        QApplication::sendEvent(focusWidget, &press);
+        QApplication::sendEvent(focusWidget, &release);
+    }
+//    qDebug() << "got key press" << c;
+
+    qApp->processEvents();
+}
+
+
+void WidgetEventHandler::widgetPaint(QWidget *widget, const QRect &updateRect)
+{
+    QImage image(widget->size(), QImage::Format_ARGB32_Premultiplied);
+    qDebug() << "widget->size" << widget->size();
+    image.fill(QColor(0,0,0,0).rgba()); // fill with transparent pixels
+
+    grabbing = true; // prevent recusion
+    //qDebug() << "render";
+    // grab widget only, no background or children
+    widget->render(&image, updateRect.topLeft(), QRegion(updateRect), QWidget::RenderFlags(0));
+    //qDebug() << "render done";
+    grabbing = false;
+
+//    image.save(QString::number(int(widget)) + ".png");
+
+
+//    qDebug() << "update" << widget << (int)widget;
+    events.addUpdateEvent((int)widget, image, updateRect);
+
+//    qDebug() << "geometry" << widget << (int)widget << globalGeometry(widget);
+    events.addGeometryEvent((int)widget, globalGeometry(widget));
+}
+
+QRect WidgetEventHandler::globalGeometry(QWidget *widget)
+{
+    QRect geometry(widget->mapTo(widget->window(), QPoint(0,0)), widget->size());
+//    qDebug() << "geometry for" << widget << geometry;
+    return geometry;
+}
+
+
+void WidgetEventHandler::recursivelyAddHide(QWidget *root)
+{
+    foreach (QWidget *child, root->findChildren<QWidget *>()) {
+        events.addEvent((int)child, EventEntry::Hide);
+    }
+}
+
+void WidgetEventHandler::recursivelyAddShow(QWidget *root)
+{
+    foreach (QWidget *child, root->findChildren<QWidget *>()) {
+        if (child->isVisible() == false)
+            continue;
+        if (events.images.contains((int)child)) {
+            addShowEvent(child);
+        }
+
+        // Add pending paint update
+        addPendingUpdate(child, child->rect());
+    }
+}
+
+void WidgetEventHandler::recursivelyAddUpdate(QWidget *widget)
+{
+    if (widget->isVisible() == false)
+        return;
+
+    addShowEvent(widget);
+    events.addGeometryEvent((int)widget, globalGeometry(widget));
+    events.addParentChangeEvent((int) widget);
+
+
+    // Add pending paint update
+    addPendingUpdate(widget, widget->rect());
+
+
+
+    foreach (QWidget *child, widget->findChildren<QWidget *>()) {
+        recursivelyAddUpdate(child);
+    }
+}
+
+void WidgetEventHandler::addShowEvent(QWidget *widget)
+{
+    qDebug() << "add show event" << widget;
+    events.addEvent((int)widget, EventEntry::Show);
+}
+
+void WidgetEventHandler::lineEditTextChange()
+{
+    events.addEvent((int)sender(), EventEntry::TextUpdate);
+}
diff --git a/src/widgeteventhandler.h b/src/widgeteventhandler.h
new file mode 100755
index 0000000..8dab3d2
--- /dev/null
+++ b/src/widgeteventhandler.h
@@ -0,0 +1,42 @@
+#ifndef WIDGETHANDLER_H
+#define WIDGETHANDLER_H
+
+#include <QtGui>
+#include <eventqueue.h>
+
+class WidgetEventHandler : public QObject
+{
+Q_OBJECT
+public:
+    WidgetEventHandler(QObject *parent = 0);
+    void setRootWidget(QWidget *root);
+    void recursivelyInstallEventHandler(QWidget *widget);
+    void setSession(Session *session);
+    Session *session();
+    void handleRequest(HttpRequest *request, HttpResponse *response);
+    void recursivelyAddShow(QWidget *root);
+    void recursivelyAddUpdate(QWidget *root);
+protected slots:
+    void updatePendingWidgets();
+    void lineEditTextChange();
+
+protected:
+    void handleMousePress(const QByteArray &message);
+    void handleKeyPress(const QByteArray &message);
+    void addPendingUpdate(QWidget* widget, const QRect &rect);
+    bool eventFilter(QObject *object, QEvent *event);
+    void widgetPaint(QWidget *widget, const QRect &updateRect);
+    QRect globalGeometry(QWidget *widget);
+    
+    void recursivelyAddHide(QWidget *root);
+    void addShowEvent(QWidget *widget);
+public: //private:
+    EventQueue events;
+    QHash<QWidget *, QRect> pendingUpdates;
+    bool graphicsWidget;
+    bool grabbing;
+    QWidget *rootWidget;
+    QWidget *focusWidget; // hack hack
+};
+
+#endif