/// <summary>
/// Append a new model to the history.
/// </summary>
/// <param name="model">The model to append.</param>
/// <returns>The sequence number of this event.</returns>
public int AddModel(SimpleWebModel model)
{
int sequenceNumber = 0;
lock (this) {
// Add the next sequence number
this.CurrentSequenceNumber++;
sequenceNumber = this.CurrentSequenceNumber;
this.History.Add(this.CurrentSequenceNumber, model);
// Occassionally remove a bunch of the web models
if (this.History.Count > this.MaximumBufferEntries)
{
// Get the keys and sort them
int[] keys = new int[this.History.Count];
this.History.Keys.CopyTo(keys, 0);
Array.Sort <int>(keys);
// Calculate how many we need to remove (N)
int stopIndex = keys.Length - this.MaximumEntries;
// Remove the smallest N keys
for (int i = 0; i < stopIndex; i++)
{
if (this.History.ContainsKey(keys[i]))
{
this.History.Remove(keys[i]);
}
}
}
}
return(sequenceNumber);
}
/// <summary>
/// Build a string that represents the current model
/// </summary>
/// <param name="model">The model to build the HTML string representation of</param>
/// <returns>The string that is built</returns>
public static string BuildModelString(SimpleWebModel model)
{
string result = "";
result += "<html>\n";
result += "<body onload=\"parent.Presenter.Network.RecvFunc()\">\n";
// Create the main div
result += "<div id=\"S0\">\n";
result += "\t<div id=\"S0_PName\">" + model.Name + "</div>\n";
result += "\t<div id=\"S0_IDeck\">" + model.CurrentDeck + "</div>\n";
result += "\t<div id=\"S0_ISlide\">" + (model.CurrentSlide-1) + "</div>\n";
result += "\t<div id=\"S0_Linked\">" + false + "</div>\n";
result += "\t<div id=\"S0_AllowSS\">" + true + "</div>\n";
result += "\t<div id=\"S0_Decks\">\n";
for( int i=0; i<model.Decks.Count; i++ )
{
result += BuildDeckString( "S0_Decks", i, (SimpleWebDeck)model.Decks[i] );
}
result += "\t</div>\n";
result += "</div>\n";
result += "</body>\n";
result += "</html>\n";
return result;
}
/// <summary>
/// Helper to create a simple data structure representing the model. This data structure will have a
/// one-to-one conversion to JSON.
/// </summary>
/// <param name="firstNum">The first sequence number</param>
/// <param name="first">The first model</param>
/// <param name="secondNum">The second sequence number</param>
/// <param name="second">The second model</param>
/// <returns>The data structure.</returns>
protected List <KeyValuePair <string, object> > BuildModel(int firstNum, SimpleWebModel first, int secondNum, SimpleWebModel second)
{
List <KeyValuePair <string, object> > model = new List <KeyValuePair <string, object> >();
// Add the global data.
model.Add(new KeyValuePair <string, object>(StartSNString, firstNum));
model.Add(new KeyValuePair <string, object>(EndSNString, secondNum));
// Optionally, add the presentation data.
List <KeyValuePair <string, object> > modelData = BuildModelData(first, second);
if (modelData != null)
{
model.Add(new KeyValuePair <string, object>(ModelDataString, modelData));
}
return(model);
}
/// <summary>
/// Clone this model.
/// </summary>
/// <returns>The cloned model.</returns>
public object Clone()
{
SimpleWebModel model = new SimpleWebModel();
foreach (SimpleWebDeck deck in this.Decks)
{
model.Decks.Add(deck.Clone());
}
model.CurrentDeck = this.CurrentDeck;
model.CurrentSlide = this.CurrentSlide;
model.Name = (string)this.Name.Clone();
model.AcceptingSS = this.AcceptingSS;
model.AcceptingQP = this.AcceptingQP;
model.ForceLink = this.ForceLink;
model.PollStyle = this.PollStyle;
model.RequestSubmissionSignal = this.RequestSubmissionSignal;
model.RequestLogSignal = this.RequestLogSignal;
return(model);
}
/// <summary>
/// Build the values for the model decks.
/// </summary>
/// <param name="first">The first model.</param>
/// <param name="second">The second model.</param>
/// <returns>The data structure for the decks array.</returns>
protected List <object> BuildDecksData(SimpleWebModel first, SimpleWebModel second)
{
bool nonNull = false;
List <object> decks = new List <object>();
// We need an entry for every deck in the second model.
for (int i = 0; i < second.Decks.Count; i++)
{
// Optionally, get the first deck if this deck existed in the first model.
SimpleWebDeck firstDeck = null;
if (first != null && i < first.Decks.Count)
{
firstDeck = (SimpleWebDeck)first.Decks[i];
}
// Get the difference between the two decks, if the decks are the same add null.
List <KeyValuePair <string, object> > deckData = BuildDeckData(firstDeck, (SimpleWebDeck)second.Decks[i]);
if (deckData != null)
{
decks.Add(deckData);
nonNull = true;
}
else
{
decks.Add(null);
}
}
// Return the result only if some deck was updated.
if (nonNull == true && decks.Count > 0)
{
return(decks);
}
else
{
return(null);
}
}
/// <summary>
/// Build the values for the model presentation.
/// </summary>
/// <param name="first">The first model.</param>
/// <param name="second">The second model.</param>
/// <returns>The data structure.</returns>
protected List <KeyValuePair <string, object> > BuildModelData(SimpleWebModel first, SimpleWebModel second)
{
List <KeyValuePair <string, object> > model = new List <KeyValuePair <string, object> >();
// Optionally, add the presentation name.
if (first == null || first.Name != second.Name)
{
model.Add(new KeyValuePair <string, object>(ModelDataName, second.Name));
}
// Optionally, add the presentation current deck index.
if (first == null || first.CurrentDeck != second.CurrentDeck)
{
model.Add(new KeyValuePair <string, object>(ModelDataCurrentDeck, second.CurrentDeck));
}
// Optionally, add the presentation current slide index.
if (first == null || first.CurrentSlide != second.CurrentSlide)
{
model.Add(new KeyValuePair <string, object>(ModelDataCurrentSlide, second.CurrentSlide));
}
// Optionally, add the presentation force navigation value.
if (first == null || first.ForceLink != second.ForceLink)
{
model.Add(new KeyValuePair <string, object>(ModelDataForceLink, second.ForceLink));
}
// Optionally, add the presentation student submission enabled value.
if (first == null || first.AcceptingSS != second.AcceptingSS)
{
model.Add(new KeyValuePair <string, object>(ModelDataAcceptingSS, second.AcceptingSS));
}
// Optionally, add the presentation quick poll enabled value.
if (first == null || first.AcceptingQP != second.AcceptingQP)
{
model.Add(new KeyValuePair <string, object>(ModelDataAcceptingQP, second.AcceptingQP));
}
// Optionally, add the presentation quick poll type value.
if (first == null || first.PollStyle != second.PollStyle)
{
model.Add(new KeyValuePair <string, object>(ModelDataPollStyle, second.PollStyle));
}
// Optionally, add the request submission signal value.
if (first == null || first.RequestSubmissionSignal != second.RequestSubmissionSignal)
{
model.Add(new KeyValuePair <string, object>(ModelDataRequestSubmission, second.RequestSubmissionSignal));
}
// Optionally, add the request log signal value.
if (first == null || first.RequestLogSignal != second.RequestLogSignal)
{
model.Add(new KeyValuePair <string, object>(ModelDataRequestLog, second.RequestLogSignal));
}
// Optionall, add the decks data.
List <object> decksData = BuildDecksData(first, second);
if (decksData != null)
{
model.Add(new KeyValuePair <string, object>(ModelDataDecks, decksData));
}
// Return the result only if we added/updated data.
if (model.Count > 0)
{
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// Clone this model.
/// </summary>
/// <returns>The cloned model.</returns>
public object Clone()
{
SimpleWebModel model = new SimpleWebModel();
foreach (SimpleWebDeck deck in this.Decks) {
model.Decks.Add(deck.Clone());
}
model.CurrentDeck = this.CurrentDeck;
model.CurrentSlide = this.CurrentSlide;
model.Name = (string)this.Name.Clone();
model.AcceptingSS = this.AcceptingSS;
model.AcceptingQP = this.AcceptingQP;
model.ForceLink = this.ForceLink;
model.PollStyle = this.PollStyle;
model.RequestSubmissionSignal = this.RequestSubmissionSignal;
model.RequestLogSignal = this.RequestLogSignal;
return model;
}
/// <summary>
/// Build the values for the model presentation.
/// </summary>
/// <param name="first">The first model.</param>
/// <param name="second">The second model.</param>
/// <returns>The data structure.</returns>
protected List<KeyValuePair<string, object>> BuildModelData(SimpleWebModel first, SimpleWebModel second)
{
List<KeyValuePair<string,object>> model = new List<KeyValuePair<string,object>>();
// Optionally, add the presentation name.
if(first == null || first.Name != second.Name) {
model.Add(new KeyValuePair<string,object>(ModelDataName, second.Name));
}
// Optionally, add the presentation current deck index.
if (first == null || first.CurrentDeck != second.CurrentDeck) {
model.Add(new KeyValuePair<string,object>(ModelDataCurrentDeck, second.CurrentDeck));
}
// Optionally, add the presentation current slide index.
if (first == null || first.CurrentSlide != second.CurrentSlide) {
model.Add(new KeyValuePair<string,object>(ModelDataCurrentSlide, second.CurrentSlide));
}
// Optionally, add the presentation force navigation value.
if (first == null || first.ForceLink != second.ForceLink) {
model.Add(new KeyValuePair<string,object>(ModelDataForceLink, second.ForceLink));
}
// Optionally, add the presentation student submission enabled value.
if (first == null || first.AcceptingSS != second.AcceptingSS) {
model.Add(new KeyValuePair<string,object>(ModelDataAcceptingSS, second.AcceptingSS));
}
// Optionally, add the presentation quick poll enabled value.
if (first == null || first.AcceptingQP != second.AcceptingQP) {
model.Add(new KeyValuePair<string,object>(ModelDataAcceptingQP, second.AcceptingQP));
}
// Optionally, add the presentation quick poll type value.
if (first == null || first.PollStyle != second.PollStyle) {
model.Add(new KeyValuePair<string,object>(ModelDataPollStyle, second.PollStyle));
}
// Optionally, add the request submission signal value.
if (first == null || first.RequestSubmissionSignal != second.RequestSubmissionSignal) {
model.Add(new KeyValuePair<string, object>(ModelDataRequestSubmission, second.RequestSubmissionSignal));
}
// Optionally, add the request log signal value.
if (first == null || first.RequestLogSignal != second.RequestLogSignal) {
model.Add(new KeyValuePair<string, object>(ModelDataRequestLog, second.RequestLogSignal));
}
// Optionall, add the decks data.
List<object> decksData = BuildDecksData(first, second);
if(decksData != null) {
model.Add(new KeyValuePair<string,object>(ModelDataDecks, decksData));
}
// Return the result only if we added/updated data.
if(model.Count > 0)
return model;
else
return null;
}
/// <summary>
/// Helper to create a simple data structure representing the model. This data structure will have a
/// one-to-one conversion to JSON.
/// </summary>
/// <param name="firstNum">The first sequence number</param>
/// <param name="first">The first model</param>
/// <param name="secondNum">The second sequence number</param>
/// <param name="second">The second model</param>
/// <returns>The data structure.</returns>
protected List<KeyValuePair<string, object>> BuildModel(int firstNum, SimpleWebModel first, int secondNum, SimpleWebModel second)
{
List<KeyValuePair<string,object>> model = new List<KeyValuePair<string,object>>();
// Add the global data.
model.Add(new KeyValuePair<string,object>(StartSNString, firstNum));
model.Add(new KeyValuePair<string,object>(EndSNString, secondNum));
// Optionally, add the presentation data.
List<KeyValuePair<string,object>> modelData = BuildModelData(first, second);
if(modelData != null) {
model.Add(new KeyValuePair<string,object>(ModelDataString, modelData));
}
return model;
}
/// <summary>
/// Build the values for the model decks.
/// </summary>
/// <param name="first">The first model.</param>
/// <param name="second">The second model.</param>
/// <returns>The data structure for the decks array.</returns>
protected List<object> BuildDecksData(SimpleWebModel first, SimpleWebModel second)
{
bool nonNull = false;
List<object> decks = new List<object>();
// We need an entry for every deck in the second model.
for (int i = 0; i < second.Decks.Count; i++) {
// Optionally, get the first deck if this deck existed in the first model.
SimpleWebDeck firstDeck = null;
if (first != null && i < first.Decks.Count) {
firstDeck = (SimpleWebDeck)first.Decks[i];
}
// Get the difference between the two decks, if the decks are the same add null.
List<KeyValuePair<string, object>> deckData = BuildDeckData(firstDeck, (SimpleWebDeck)second.Decks[i]);
if (deckData != null) {
decks.Add(deckData);
nonNull = true;
} else {
decks.Add(null);
}
}
// Return the result only if some deck was updated.
if (nonNull == true && decks.Count > 0)
return decks;
else
return null;
}
/// <summary>
/// Append a new model to the history.
/// </summary>
/// <param name="model">The model to append.</param>
/// <returns>The sequence number of this event.</returns>
public int AddModel(SimpleWebModel model)
{
int sequenceNumber = 0;
lock (this) {
// Add the next sequence number
this.CurrentSequenceNumber++;
sequenceNumber = this.CurrentSequenceNumber;
this.History.Add(this.CurrentSequenceNumber, model);
// Occassionally remove a bunch of the web models
if (this.History.Count > this.MaximumBufferEntries) {
// Get the keys and sort them
int[] keys = new int[this.History.Count];
this.History.Keys.CopyTo(keys, 0);
Array.Sort<int>(keys);
// Calculate how many we need to remove (N)
int stopIndex = keys.Length - this.MaximumEntries;
// Remove the smallest N keys
for (int i = 0; i < stopIndex; i++) {
if (this.History.ContainsKey(keys[i])) {
this.History.Remove(keys[i]);
}
}
}
}
return sequenceNumber;
}
public string BuildModelDiffString(SimpleWebModel oldModel, SimpleWebModel newModel)
{
// Go recursive, only add if there is a change within
return "";
}