public void SendSheetInformation(SheetModel sheet, SheetMessage.SheetCollection selector, Group receivers)
{
// TODO: Also pass the index so the sheet can be inserted into the correct index on the remote side.
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.m_Slide));
Message sm = SheetMessage.RemoteForSheet(sheet, selector);
//if sm is null that means that the sheet is an instructor note and shouldn't be sent.
if (sm != null)
{
slide.InsertChild(sm);
}
using (Synchronizer.Lock(this.m_Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.m_Slide.Id;
}
if (sheet is ImageSheetModel && ((ImageSheetModel)sheet).Image != null)
{
using (Synchronizer.Lock(sheet.SyncRoot)) {
this.m_Sender.Send(message);
}
}
else
{
this.m_Sender.Send(message);
}
}
/// <summary>
/// This is similar to the texthelpermethod, but here we send a removal message
/// if the message is private. I am having two different methods for the sake of seperating
/// the two different types of messages.
/// </summary>
/// <param name="receivers"></param>
private void SendPublicHelper(Group receivers)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
///send the text message
bool sheet_is_public;
using (Synchronizer.Lock(sheet_.SyncRoot)) {
sheet_is_public = sheet_.IsPublic;
}
///if the sheet is private, the users should not be able to see any part of the sheet,
///so we should just remove a private sheet.
if (sheet_is_public) {
slide.InsertChild(new TextSheetMessage(this.sheet_, this.SheetCollectionSelector));
} else {
slide.InsertChild(new SheetRemovedMessage(this.sheet_, this.SheetCollectionSelector));
}
using (Synchronizer.Lock(this.Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.Slide.Id;
}
this.Sender.Send(message);
}
private void SendAllSlidesAndContent(Group receivers)
{
using (Synchronizer.Lock(this.m_Deck.SyncRoot)) {
foreach (SlideModel slide in this.m_Deck.Slides)
{
this.SendSlideInformation(slide, receivers);
}
foreach (ByteArray hash in this.m_Deck.SlideContentKeys)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new DeckSlideContentMessage(this.m_Deck, hash));
message.Tags = new MessageTags();
message.Tags.BridgePriority = MessagePriority.Lowest;
SlideModel slide = this.m_Deck.GetSlideFromContent(hash);
if (slide != null)
{
using (Synchronizer.Lock(slide.SyncRoot)) {
message.Tags.SlideID = slide.Id;
}
}
this.m_Sender.Send(message, MessagePriority.Low);
}
}
}
private void SendSlideInformation(SlideModel slide, Group receivers)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
// Ensure that nothing about the slide can change between sending the slide's information
// and creating the SlideNetworkService to listen for changes.
// TODO: Find a way to also ensure that nothing about the SheetModels change either, but this is less of a concern.
using (Synchronizer.Lock(this.m_SlideNetworkServices.SyncRoot)) {
using (Synchronizer.Lock(slide.SyncRoot)) {
deck.InsertChild(new SlideInformationMessage(slide));
message.Tags = new MessageTags();
message.Tags.SlideID = slide.Id;
this.m_Sender.Send(message);
if (!this.m_SlideNetworkServices.ContainsKey(slide))
{
SlideNetworkService service = new SlideNetworkService(this.m_Sender, this.m_Presentation, this.m_Deck, slide);
this.m_SlideNetworkServices.Add(slide, service);
}
}
}
}
protected override void TearDownMember(int index, object member, object tag)
{
if (tag == null)
{
return;
}
SheetModel sheet = ((SheetModel)member);
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Service.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.m_Service.m_Slide));
slide.InsertChild(new SheetRemovedMessage(sheet, this.m_Selector));
using (Synchronizer.Lock(this.m_Service.m_Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.m_Service.m_Slide.Id;
}
this.m_Service.m_Sender.Send(message);
((SheetNetworkService)tag).Dispose();
}
private void SendImageHelper(Group receivers)
{
//Don't send message if it's an instructor note.
if (this.sheet_.Disposition != SheetDisposition.Instructor)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild(new ImageSheetMessage(this.sheet_, this.SheetCollectionSelector));
using (Synchronizer.Lock(m_SlideModel.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideModel.Id;
}
if (this.sheet_.Image != null)
{
using (Synchronizer.Lock(this.sheet_.SyncRoot)) {
this.Sender.Send(message);
}
}
else
{
this.Sender.Send(message);
}
}
}
private void HandleSlideContentAdded(object sender, PropertyEventArgs args_)
{
PropertyCollectionEventArgs args = ((PropertyCollectionEventArgs)args_);
ByteArray hash = ((ByteArray)args.Added);
// For the purposes of ForceUpdate, this information is sent by SendAllSlidesAndContent.
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new DeckSlideContentMessage(this.m_Deck, hash));
if ((this.m_Deck.Disposition & (DeckDisposition.StudentSubmission | DeckDisposition.QuickPoll)) != 0)
{
// If we get here in response to a new student submission received
// we don't need to send anything because we can assume the public display
// already has the slide, however if the instructor manually adds new
// slides to a student submission deck, the public display may not have them.
// For now we send in both cases, but that could be improved.
// In any case we only send slides from a Student Submission deck to Public nodes.
message.Group = Group.Submissions;
}
this.m_Sender.Send(message, MessagePriority.Low);
}
/// <summary>
/// This is similar to the texthelpermethod, but here we send a removal message
/// if the message is private. I am having two different methods for the sake of seperating
/// the two different types of messages.
/// </summary>
/// <param name="receivers"></param>
private void SendPublicHelper(Group receivers)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
///send the text message
bool sheet_is_public;
using (Synchronizer.Lock(sheet_.SyncRoot)) {
sheet_is_public = sheet_.IsPublic;
}
///if the sheet is private, the users should not be able to see any part of the sheet,
///so we should just remove a private sheet.
if (sheet_is_public)
{
slide.InsertChild(new TextSheetMessage(this.sheet_, this.SheetCollectionSelector));
}
else
{
slide.InsertChild(new SheetRemovedMessage(this.sheet_, this.SheetCollectionSelector));
}
using (Synchronizer.Lock(this.Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.Slide.Id;
}
this.Sender.Send(message);
}
private void HandleDeckBackgroundChanged(object sender, PropertyEventArgs args_)
{
// No need to send this during ForceUpdate since the DeckTraversalNetworkService
// will already have sent a DeckInformationMessage containing this information.
Message message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(new DeckInformationMessage(this.m_Deck));
this.m_Sender.Send(message);
}
private void HandleInkDeletingHelper(string[] ids)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(GetSubmissionSlideModel(), false));
slide.InsertChild(sheet = new InkSheetStrokesDeletingMessage(this.m_Sheet, this.SheetCollectionSelector, ids));
this.Sender.Send(message);
}
private void HandleCurrentDrawingAttributesChanged(object sender, PropertyEventArgs args)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(GetSubmissionSlideModel(), false));
slide.InsertChild(sheet = SheetMessage.RemoteForSheet(this.Sheet, this.SheetCollectionSelector));
this.Sender.Send(message);
}
private void SendTraversalInformation(DeckTraversalModel traversal, Group receivers)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(traversal.Deck));
deck.InsertChild(DeckTraversalMessage.ForDeckTraversal(traversal));
this.m_Service.m_Sender.Send(message);
}
private void SendGenericChange(Group receivers)
{
// Send a generic update with information about the slide (including the new bounds/zoom).
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new SlideInformationMessage(this.m_Slide));
this.m_Sender.Send(message);
}
private void HandleInkAddedHelper(Ink extracted)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(GetSubmissionSlideModel(), false));
slide.InsertChild(sheet = new InkSheetStrokesAddedMessage(this.m_Sheet, (Guid)slide.TargetId, this.SheetCollectionSelector, extracted));
sheet.AddOldestPredecessor(SheetMessage.RemoteForSheet(this.m_Sheet, this.SheetCollectionSelector));
this.Sender.Send(message);
}
private void SendEntryAdded(TableOfContentsModel.Entry entry, Group receivers)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Service.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(entry.Slide));
slide.InsertChild(new TableOfContentsEntryMessage(entry));
this.m_Service.m_Sender.Send(message);
}
/// <summary>
/// if the chunk identifies the role, return the numeric value. Also look for the human name of the presenter.
/// 1:instructor;2:shared display;3:student;other vaules:unknown.
/// </summary>
/// <param name="chunk"></param>
/// <param name="presenterName"></param>
/// <returns></returns>
public static int AnalyzeChunk(UW.ClassroomPresenter.Network.Chunking.Chunk chunk, out string presenterName)
{
presenterName = "";
if (chunk.NumberOfChunksInMessage == 1)
{
MemoryStream ms = new MemoryStream(chunk.Data);
BinaryFormatter formatter = new BinaryFormatter();
object decoded = null;
try {
decoded = formatter.Deserialize(ms);
}
catch (Exception e)
{ // Most likely a new or unknown message type
Debug.WriteLine(e.ToString());
}
if (decoded is CP3.Network.Messages.Message)
{
CP3.Network.Messages.Message m = (CP3.Network.Messages.Message)decoded;
if (m is CP3Msgs.PresentationInformationMessage)
{
CP3Msgs.PresentationInformationMessage pim = (CP3Msgs.PresentationInformationMessage)m;
return(1);
}
else if (m is CP3.Network.Messages.Network.ParticipantGroupAddedMessage)
{
CP3.Network.Messages.Network.ParticipantGroupAddedMessage gim = (CP3.Network.Messages.Network.ParticipantGroupAddedMessage)m;
if (gim.Singleton)
{
presenterName = gim.FriendlyName;
}
return(0);
}
else if (m is UW.ClassroomPresenter.Network.Messages.Network.InstructorMessage)
{
Debug.WriteLine(m.ToString());
return(1);
}
else if (m is UW.ClassroomPresenter.Network.Messages.Network.StudentMessage)
{
Debug.WriteLine(m.ToString());
return(3);
}
else if (m is UW.ClassroomPresenter.Network.Messages.Network.PublicMessage)
{
Debug.WriteLine(m.ToString());
return(2);
}
}
}
return(0);
}
private void SendQuickPollChanged(Group receivers)
{
Message message;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
using (Synchronizer.Lock(this.m_Presentation.SyncRoot)) {
message.InsertChild(new QuickPollInformationMessage(this.m_Presentation.QuickPoll));
}
this.m_Sender.Send(message);
}
private void HandleInkDeletingHelper(string[] ids)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild(sheet = new InkSheetStrokesDeletingMessage(this.m_Sheet, this.SheetCollectionSelector, ids));
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideID;
message.Tags.BridgePriority = MessagePriority.Higher;
this.Sender.Send(message);
}
/// <summary>
/// Send a QuickPollResultInformationMessage to the appropriate receivers
/// </summary>
/// <param name="receivers">The group of people that should receive the update</param>
private void SendResultChanged(Group receivers)
{
Message message, poll, res;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
poll = new QuickPollInformationMessage(this.m_QuickPoll);
poll.Group = receivers;
message.InsertChild(poll);
res = new QuickPollResultInformationMessage(this.m_Result);
res.Group = receivers;
poll.InsertChild(res);
this.m_Sender.Send(message);
}
protected virtual void HandleBoundsChanged(object sender, PropertyEventArgs args)
{
// Send a generic update with information about the sheet (including the new bounds).
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild(sheet = SheetMessage.RemoteForSheet(this.Sheet, this.SheetCollectionSelector));
using (Synchronizer.Lock(this.m_Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.m_Slide.Id;
}
this.Sender.Send(message);
}
protected override void TearDownMember(int index, object member, object tag)
{
DeckTraversalNetworkService service = ((DeckTraversalNetworkService)tag);
if (service != null)
{
DeckTraversalModel traversal = service.DeckTraversal;
service.Dispose();
Message message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.InsertChild(new DeckTraversalRemovedFromPresentationMessage(traversal));
this.m_Service.m_Sender.Send(message);
// TODO: Also send a DeckClosedMessage if necessary -- or should that be done by the DeckTraversalNetworkService?
}
}
protected override void TearDownMember(int index, object member, object tag)
{
if (tag == null)
{
return;
}
TableOfContentsModel.Entry entry = ((TableOfContentsModel.Entry)member);
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Service.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(entry.Slide));
slide.InsertChild(new TableOfContentsEntryRemovedMessage(entry));
this.m_Service.m_Sender.Send(message);
}
private void SendTextHelper(Group receivers)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
///send the text message
slide.InsertChild(new TextSheetMessage(this.sheet_, this.SheetCollectionSelector));
using (Synchronizer.Lock(this.Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.Slide.Id;
}
this.Sender.Send(message);
}
private void SendCurrentChanged(Group receivers)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_DeckTraversal.Deck));
deck.InsertChild(DeckTraversalMessage.ForDeckTraversal(this.m_DeckTraversal));
#if DEBUG
// Add logging of slide change events
string pres_name = "";
using (Synchronizer.Lock(this.m_Presentation.SyncRoot))
pres_name = this.m_Presentation.HumanName;
string deck_name = "";
using (Synchronizer.Lock(this.m_DeckTraversal.Deck.SyncRoot))
deck_name = this.m_DeckTraversal.Deck.HumanName;
int slide_index = 0;
Guid slide_guid = Guid.Empty;
using (Synchronizer.Lock(this.m_DeckTraversal.SyncRoot)) {
if (this.m_DeckTraversal.Current != null)
{
using (Synchronizer.Lock(this.m_DeckTraversal.Current.SyncRoot)) {
slide_index = this.m_DeckTraversal.Current.IndexInParent;
using (Synchronizer.Lock(this.m_DeckTraversal.Current.Slide.SyncRoot)) {
slide_guid = this.m_DeckTraversal.Current.Slide.Id;
}
}
}
}
Debug.WriteLine(string.Format("SLIDE CHANGE ({0}): Pres -- {1}, Deck -- {2}, Slide -- {3}, Guid -- {4}",
System.DateTime.Now.Ticks, pres_name, deck_name, slide_index, slide_guid));
#endif
message.Tags = new MessageTags();
message.Tags.BridgePriority = MessagePriority.Higher;
this.m_Sender.Send(message);
}
protected void HandleSubmissionStyleChange(object sender, PropertyEventArgs args)
{
// Send the Student Submission Message
using (Synchronizer.Lock(this.m_Slide.SyncRoot)){
if (this.m_Slide.SubmissionStyle == SlideModel.StudentSubmissionStyle.Shared)
{
Guid TOCEntryGuid = Guid.NewGuid();
this.m_Slide.SubmissionSlideGuid = SendStudentSubmission(TOCEntryGuid);
LocalAddStudentSubmission(this.m_Slide.SubmissionSlideGuid, TOCEntryGuid);
}
}
// Send a generic update with information about the slide (including the new bounds/zoom).
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new SlideInformationMessage(this.m_Slide));
this.m_Sender.Send(message);
}
private void SendQuickPollSheetHelper( Group receivers )
{
//Don't send message if it's an instructor note.
if( this.sheet.Disposition != SheetDisposition.Instructor ) {
Message message, deck, poll, slide;
message = new PresentationInformationMessage( this.Presentation );
message.Group = receivers;
message.InsertChild( deck = new DeckInformationMessage( this.Deck ) );
deck.InsertChild( slide = new SlideInformationMessage( this.Slide ) );
using( Synchronizer.Lock( this.Sheet.SyncRoot ) ) {
slide.InsertChild( poll = new QuickPollInformationMessage( this.sheet.QuickPoll ) );
}
poll.InsertChild( new QuickPollSheetMessage( this.sheet, this.SheetCollectionSelector ) );
using( Synchronizer.Lock( m_SlideModel.SyncRoot ) ) {
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideModel.Id;
}
this.Sender.Send( message );
}
}
private void HandleSlideRemoved(object sender, PropertyEventArgs args_)
{
PropertyCollectionEventArgs args = ((PropertyCollectionEventArgs)args_);
SlideModel slide = ((SlideModel)args.Removed);
using (Synchronizer.Lock(this.m_SlideNetworkServices.SyncRoot)) {
SlideNetworkService service = ((SlideNetworkService)this.m_SlideNetworkServices[slide]);
if (service != null)
{
this.m_SlideNetworkServices.Remove(service);
service.Dispose();
}
}
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new SlideDeletedMessage(slide));
this.m_Sender.Send(message);
}
private void SendQuickPollSheetHelper(Group receivers)
{
//Don't send message if it's an instructor note.
if (this.sheet.Disposition != SheetDisposition.Instructor)
{
Message message, deck, poll, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
using (Synchronizer.Lock(this.Sheet.SyncRoot)) {
slide.InsertChild(poll = new QuickPollInformationMessage(this.sheet.QuickPoll));
}
poll.InsertChild(new QuickPollSheetMessage(this.sheet, this.SheetCollectionSelector));
using (Synchronizer.Lock(m_SlideModel.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideModel.Id;
}
this.Sender.Send(message);
}
}
private void SendImageHelper(Group receivers)
{
//Don't send message if it's an instructor note.
if (this.sheet_.Disposition != SheetDisposition.Instructor) {
Message message, deck, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild(new ImageSheetMessage(this.sheet_, this.SheetCollectionSelector));
using (Synchronizer.Lock(m_SlideModel.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideModel.Id;
}
if (this.sheet_.Image != null) {
using (Synchronizer.Lock(this.sheet_.SyncRoot)) {
this.Sender.Send(message);
}
}
else
this.Sender.Send(message);
}
}
private void SendSlideInformation(SlideModel slide, Group receivers)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
// Ensure that nothing about the slide can change between sending the slide's information
// and creating the SlideNetworkService to listen for changes.
// TODO: Find a way to also ensure that nothing about the SheetModels change either, but this is less of a concern.
using (Synchronizer.Lock(this.m_SlideNetworkServices.SyncRoot)) {
using (Synchronizer.Lock(slide.SyncRoot)) {
deck.InsertChild(new SlideInformationMessage(slide));
message.Tags = new MessageTags();
message.Tags.SlideID = slide.Id;
this.m_Sender.Send(message);
if (!this.m_SlideNetworkServices.ContainsKey(slide)) {
SlideNetworkService service = new SlideNetworkService(this.m_Sender, this.m_Presentation, this.m_Deck, slide);
this.m_SlideNetworkServices.Add(slide, service);
}
}
}
}
private void SendCurrentChanged(Group receivers)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_DeckTraversal.Deck));
deck.InsertChild(DeckTraversalMessage.ForDeckTraversal(this.m_DeckTraversal));
#if DEBUG
// Add logging of slide change events
string pres_name = "";
using( Synchronizer.Lock( this.m_Presentation.SyncRoot ) )
pres_name = this.m_Presentation.HumanName;
string deck_name = "";
using( Synchronizer.Lock( this.m_DeckTraversal.Deck.SyncRoot ) )
deck_name = this.m_DeckTraversal.Deck.HumanName;
int slide_index = 0;
Guid slide_guid = Guid.Empty;
using( Synchronizer.Lock( this.m_DeckTraversal.SyncRoot ) ) {
if( this.m_DeckTraversal.Current != null )
using( Synchronizer.Lock( this.m_DeckTraversal.Current.SyncRoot ) ) {
slide_index = this.m_DeckTraversal.Current.IndexInParent;
using (Synchronizer.Lock(this.m_DeckTraversal.Current.Slide.SyncRoot)) {
slide_guid = this.m_DeckTraversal.Current.Slide.Id;
}
}
}
Debug.WriteLine( string.Format("SLIDE CHANGE ({0}): Pres -- {1}, Deck -- {2}, Slide -- {3}, Guid -- {4}",
System.DateTime.Now.Ticks, pres_name, deck_name, slide_index, slide_guid ) );
#endif
message.Tags = new MessageTags();
message.Tags.BridgePriority = MessagePriority.Higher;
this.m_Sender.Send(message);
}
private void SendQuickPollChanged( Group receivers )
{
Message message;
message = new PresentationInformationMessage( this.m_Presentation );
message.Group = receivers;
using( Synchronizer.Lock( this.m_Presentation.SyncRoot ) ) {
message.InsertChild( new QuickPollInformationMessage( this.m_Presentation.QuickPoll ) );
}
this.m_Sender.Send( message );
}
protected override void TearDownMember(int index, object member, object tag)
{
DeckTraversalNetworkService service = ((DeckTraversalNetworkService) tag);
if(service != null) {
DeckTraversalModel traversal = service.DeckTraversal;
service.Dispose();
Message message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.InsertChild(new DeckTraversalRemovedFromPresentationMessage(traversal));
this.m_Service.m_Sender.Send(message);
// TODO: Also send a DeckClosedMessage if necessary -- or should that be done by the DeckTraversalNetworkService?
}
}
protected override void TearDownMember(int index, object member, object tag)
{
if(tag == null) return;
SheetModel sheet = ((SheetModel) member);
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Service.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.m_Service.m_Slide));
slide.InsertChild(new SheetRemovedMessage(sheet, this.m_Selector));
using (Synchronizer.Lock(this.m_Service.m_Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.m_Service.m_Slide.Id;
}
this.m_Service.m_Sender.Send(message);
((SheetNetworkService) tag).Dispose();
}
protected Guid SendStudentSubmission( Guid TOCEntryGuid )
{
Guid newSlideGuid = Guid.Empty;
UW.ClassroomPresenter.Network.Messages.Message pres, deck, slide, sheet;
// Add the presentation
if( this.m_Presentation == null )
return Guid.Empty;
pres = new PresentationInformationMessage( this.m_Presentation );
pres.Group = Groups.Group.Submissions;
//Add the current deck model that corresponds to this slide deck at the remote location
deck = new DeckInformationMessage( this.m_Deck );
deck.Group = Groups.Group.Submissions;
pres.InsertChild( deck );
// Add the Slide Message
newSlideGuid = Guid.NewGuid();
TOCEntryGuid = Guid.NewGuid();
slide = new StudentSubmissionSlideInformationMessage( this.m_Slide, newSlideGuid, TOCEntryGuid );
slide.Group = Groups.Group.Submissions;
deck.InsertChild( slide );
// Find the correct user ink layer to send
RealTimeInkSheetModel m_Sheet = null;
using( Synchronizer.Lock( this.m_Slide.SyncRoot ) ) {
foreach( SheetModel s in this.m_Slide.AnnotationSheets ) {
if( s is RealTimeInkSheetModel && (s.Disposition & SheetDisposition.Remote) == 0 ) {
m_Sheet = (RealTimeInkSheetModel)s;
break;
}
}
}
// Find the existing ink on the slide
Microsoft.Ink.Ink extracted;
using( Synchronizer.Lock( m_Sheet.Ink.Strokes.SyncRoot ) ) {
// Ensure that each stroke has a Guid which will uniquely identify it on the remote side
foreach( Microsoft.Ink.Stroke stroke in m_Sheet.Ink.Strokes ) {
if( !stroke.ExtendedProperties.DoesPropertyExist( InkSheetMessage.StrokeIdExtendedProperty ) )
stroke.ExtendedProperties.Add( InkSheetMessage.StrokeIdExtendedProperty, Guid.NewGuid().ToString() );
}
// Extract all of the strokes
extracted = m_Sheet.Ink.ExtractStrokes( m_Sheet.Ink.Strokes, Microsoft.Ink.ExtractFlags.CopyFromOriginal );
}
// Find the Realtime ink on the slide
RealTimeInkSheetModel newSheet = null;
using( Synchronizer.Lock( m_Sheet.SyncRoot ) ) {
newSheet = new RealTimeInkSheetModel( Guid.NewGuid(), m_Sheet.Disposition | SheetDisposition.Remote, m_Sheet.Bounds );
using( Synchronizer.Lock( newSheet.SyncRoot ) ) {
newSheet.CurrentDrawingAttributes = m_Sheet.CurrentDrawingAttributes;
}
}
// Add the Sheet Message for the existing ink
sheet = new InkSheetStrokesAddedMessage(newSheet, (Guid)slide.TargetId, SheetMessage.SheetCollection.AnnotationSheets, extracted);
sheet.Group = Groups.Group.Submissions;
slide.InsertChild( sheet );
// Add the Sheet Message for the real-time ink
sheet = SheetMessage.ForSheet( newSheet, SheetMessage.SheetCollection.AnnotationSheets );
sheet.Group = Groups.Group.Submissions;
slide.AddOldestPredecessor( sheet );
// Send the message
this.m_Sender.Send( pres );
return newSlideGuid;
}
public void SendSheetInformation( SheetModel sheet, SheetMessage.SheetCollection selector, Group receivers )
{
// TODO: Also pass the index so the sheet can be inserted into the correct index on the remote side.
Message message, deck, slide;
message = new PresentationInformationMessage( this.m_Presentation );
message.Group = receivers;
message.InsertChild( deck = new DeckInformationMessage( this.m_Deck ) );
deck.InsertChild( slide = new SlideInformationMessage( this.m_Slide ) );
Message sm = SheetMessage.RemoteForSheet(sheet, selector);
//if sm is null that means that the sheet is an instructor note and shouldn't be sent.
if (sm != null) {
slide.InsertChild(sm);
}
using( Synchronizer.Lock( this.m_Slide.SyncRoot ) ) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.m_Slide.Id;
}
if (sheet is ImageSheetModel && ((ImageSheetModel)sheet).Image != null) {
using (Synchronizer.Lock(sheet.SyncRoot)) {
this.m_Sender.Send( message );
}
}
else
this.m_Sender.Send(message);
}
protected virtual void HandleBoundsChanged(object sender, PropertyEventArgs args)
{
// Send a generic update with information about the sheet (including the new bounds).
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild( sheet = SheetMessage.RemoteForSheet( this.Sheet, this.SheetCollectionSelector ) );
using (Synchronizer.Lock(this.m_Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.m_Slide.Id;
}
this.Sender.Send(message);
}
private void HandleInkAddedHelper(Ink extracted)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage( GetSubmissionSlideModel(), false ));
slide.InsertChild(sheet = new InkSheetStrokesAddedMessage(this.m_Sheet, (Guid)slide.TargetId, this.SheetCollectionSelector, extracted));
sheet.AddOldestPredecessor( SheetMessage.RemoteForSheet( this.m_Sheet, this.SheetCollectionSelector ) );
this.Sender.Send(message);
}
private void SendEntryAdded(TableOfContentsModel.Entry entry, Group receivers)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Service.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(entry.Slide));
slide.InsertChild(new TableOfContentsEntryMessage(entry));
this.m_Service.m_Sender.Send(message);
}
protected Guid SendStudentSubmission()
{
Guid newSlideGuid = Guid.Empty;
UW.ClassroomPresenter.Network.Messages.Message pres, deck, slide, sheet;
// Add the presentation
if (this.Presentation == null)
{
return(Guid.Empty);
}
pres = new PresentationInformationMessage(this.Presentation);
pres.Group = Groups.Group.Submissions;
//Add the current deck model that corresponds to this slide deck at the remote location
deck = new DeckInformationMessage(this.Deck);
deck.Group = Groups.Group.Submissions;
pres.InsertChild(deck);
// Add the Slide Message
newSlideGuid = Guid.NewGuid();
slide = new StudentSubmissionSlideInformationMessage(this.Slide, newSlideGuid, Guid.NewGuid());
slide.Group = Groups.Group.Submissions;
deck.InsertChild(slide);
// Find the correct user ink layer to send
RealTimeInkSheetModel m_Sheet = null;
using (Synchronizer.Lock(this.Slide.SyncRoot)) {
foreach (SheetModel s in this.Slide.AnnotationSheets)
{
if (s is RealTimeInkSheetModel && (s.Disposition & SheetDisposition.Remote) == 0)
{
m_Sheet = (RealTimeInkSheetModel)s;
break;
}
}
}
// Find the existing ink on the slide
Microsoft.Ink.Ink extracted;
using (Synchronizer.Lock(m_Sheet.Ink.Strokes.SyncRoot)) {
// Ensure that each stroke has a Guid which will uniquely identify it on the remote side
foreach (Microsoft.Ink.Stroke stroke in m_Sheet.Ink.Strokes)
{
if (!stroke.ExtendedProperties.DoesPropertyExist(InkSheetMessage.StrokeIdExtendedProperty))
{
stroke.ExtendedProperties.Add(InkSheetMessage.StrokeIdExtendedProperty, Guid.NewGuid().ToString());
}
}
// Extract all of the strokes
extracted = m_Sheet.Ink.ExtractStrokes(m_Sheet.Ink.Strokes, Microsoft.Ink.ExtractFlags.CopyFromOriginal);
}
// Find the Realtime ink on the slide
RealTimeInkSheetModel newSheet = null;
using (Synchronizer.Lock(m_Sheet.SyncRoot)) {
newSheet = new RealTimeInkSheetModel(Guid.NewGuid(), m_Sheet.Disposition | SheetDisposition.Remote, m_Sheet.Bounds);
using (Synchronizer.Lock(newSheet.SyncRoot)) {
newSheet.CurrentDrawingAttributes = m_Sheet.CurrentDrawingAttributes;
}
}
// Add the Sheet Message for the existing
sheet = new InkSheetStrokesAddedMessage(newSheet, (Guid)slide.TargetId, SheetMessage.SheetCollection.AnnotationSheets, extracted);
sheet.Group = Groups.Group.Submissions;
slide.InsertChild(sheet);
// Add the Sheet Message for the real-time ink
sheet = SheetMessage.ForSheet(newSheet, SheetMessage.SheetCollection.AnnotationSheets);
sheet.Group = Groups.Group.Submissions;
slide.AddOldestPredecessor(sheet);
// Send the message
this.m_Sender.Send(pres);
return(newSlideGuid);
}
private void HandleCurrentDrawingAttributesChanged(object sender, PropertyEventArgs args)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild( sheet = SheetMessage.RemoteForSheet( this.Sheet, this.SheetCollectionSelector ) );
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideID;
this.Sender.Send(message);
}
/// <summary>
/// Send the current ink as a student submission slide
/// </summary>
/// <param name="sender">The object which sent this event, i.e. this class</param>
/// <param name="args">The parameters for the property</param>
private void HandleSendSubmission( object sender, PropertyEventArgs args )
{
if (this.m_SendingLock) return;
using (Synchronizer.Lock(SubmissionStatusModel.GetInstance().SyncRoot)) {
SubmissionStatusModel.GetInstance().SubmissionStatus = SubmissionStatusModel.Status.NotReceived;
}
///declare variables we will be using
UW.ClassroomPresenter.Network.Messages.Message pres, deck, slide, sheet;
// Construct the message to send
using( this.m_Model.Workspace.Lock() ) {
// Add the presentation
if( this.m_Model.Workspace.CurrentPresentation == null )
return;
///the presentation message we will be sending
pres = new PresentationInformationMessage( this.m_Model.Workspace.CurrentPresentation );
pres.Group = Groups.Group.Submissions;
//Add the current deck model that corresponds to this slide deck at the remote location
if( (~this.m_Model.Workspace.CurrentDeckTraversal) == null )
return;
using( Synchronizer.Lock( (~this.m_Model.Workspace.CurrentDeckTraversal).SyncRoot ) ) {
DeckModel dModel = (~this.m_Model.Workspace.CurrentDeckTraversal).Deck;
foreach( DeckPairModel match in this.m_Model.Workspace.DeckMatches ) {
///check to see if the decks are the same
if( match.LocalDeckTraversal.Deck == (~this.m_Model.Workspace.CurrentDeckTraversal).Deck )
dModel = match.RemoteDeckTraversal.Deck;
}
///create the deck message from this matched deck
deck = new DeckInformationMessage( dModel );
///make the deck a submission type deck.
deck.Group = Groups.Group.Submissions;
///tack this message onto the end.
pres.InsertChild( deck );
///add the particular slide we're on the to message.
if( (~this.m_Model.Workspace.CurrentDeckTraversal).Current == null )
return;
using( Synchronizer.Lock( (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide.SyncRoot ) ) {
// Add the Slide Message
slide = new StudentSubmissionSlideInformationMessage( (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide, Guid.NewGuid(), Guid.NewGuid() );
slide.Group = Groups.Group.Submissions;
deck.InsertChild( slide );
// Find the correct user ink layer to send
RealTimeInkSheetModel m_Sheet = null;
int count = 0;
foreach( SheetModel s in (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide.AnnotationSheets ) {
if( s is RealTimeInkSheetModel && (s.Disposition & SheetDisposition.Remote) == 0 ) {
m_Sheet = (RealTimeInkSheetModel)s;
count++;
}
}
// DEBUGGING
if( count > 1 )
Debug.Assert( true, "Bad Count", "Bad" );
// Find the existing ink on the slide
Ink extracted;
using( Synchronizer.Lock( m_Sheet.Ink.Strokes.SyncRoot ) ) {
// Ensure that each stroke has a Guid which will uniquely identify it on the remote side
foreach( Stroke stroke in m_Sheet.Ink.Strokes ) {
if( !stroke.ExtendedProperties.DoesPropertyExist( InkSheetMessage.StrokeIdExtendedProperty ) )
stroke.ExtendedProperties.Add( InkSheetMessage.StrokeIdExtendedProperty, Guid.NewGuid().ToString() );
}
// Extract all of the strokes
extracted = m_Sheet.Ink.ExtractStrokes( m_Sheet.Ink.Strokes, ExtractFlags.CopyFromOriginal );
}
// Find the Realtime ink on the slide
RealTimeInkSheetModel newSheet = null;
using( Synchronizer.Lock( m_Sheet.SyncRoot ) ) {
newSheet = new RealTimeInkSheetModel( Guid.NewGuid(), m_Sheet.Disposition | SheetDisposition.Remote, m_Sheet.Bounds );
using( Synchronizer.Lock( newSheet.SyncRoot ) ) {
newSheet.CurrentDrawingAttributes = m_Sheet.CurrentDrawingAttributes;
}
}
// Add a message to *create* the student's RealTimeInkSheetModel on the instructor client (without any ink).
sheet = SheetMessage.ForSheet(newSheet, SheetMessage.SheetCollection.AnnotationSheets);
sheet.Group = Groups.Group.Submissions;
slide.InsertChild(sheet);
//Scale the ink if necessary
if (ViewerStateModel.NonStandardDpi) {
extracted.Strokes.Transform(ViewerStateModel.DpiNormalizationSendMatrix);
}
// Add a message to copy the ink from the student's RealTimeInkSheetModel to the just-created sheet on the instructor.
sheet = new InkSheetStrokesAddedMessage(newSheet, (Guid)slide.TargetId, SheetMessage.SheetCollection.AnnotationSheets, extracted);
sheet.Group = Groups.Group.Submissions;
slide.InsertChild( sheet );
///Add each text and image sheet into the message as children of the ink sheet if it is public
foreach( SheetModel s in (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide.AnnotationSheets ) {
if( s is TextSheetModel && !(s is StatusLabel) && (s.Disposition & SheetDisposition.Remote) == 0) {
TextSheetModel text_sheet = (TextSheetModel) s;
text_sheet = (TextSheetModel) text_sheet.Clone();
///some ugly code here due to synchronization
bool sheet_is_public;
using (Synchronizer.Lock(text_sheet.SyncRoot)) {
sheet_is_public = text_sheet.IsPublic;
}
if (sheet_is_public) {
TextSheetMessage t_message = new TextSheetMessage(text_sheet, SheetMessage.SheetCollection.AnnotationSheets);
t_message.Group = Groups.Group.Submissions;
slide.InsertChild(t_message);
}
}
if (s is ImageSheetModel && !(s is StatusLabel) && (s.Disposition & SheetDisposition.Remote) == 0) {
ImageSheetModel image_sheet = (ImageSheetModel)s;
image_sheet = (ImageSheetModel) image_sheet.Clone();
ImageSheetMessage i_message = new ImageSheetMessage(image_sheet, SheetMessage.SheetCollection.AnnotationSheets);
i_message.Group = Groups.Group.Submissions;
slide.InsertChild(i_message);
}
}
//Lock the current sending.
this.LockSending();
// Send the message
this.m_Sender.Send(pres);
}
}
}
}
protected void HandleSubmissionStyleChange( object sender, PropertyEventArgs args )
{
// Send the Student Submission Message
using( Synchronizer.Lock( this.m_Slide.SyncRoot ) ){
if( this.m_Slide.SubmissionStyle == SlideModel.StudentSubmissionStyle.Shared ) {
Guid TOCEntryGuid = Guid.NewGuid();
this.m_Slide.SubmissionSlideGuid = SendStudentSubmission( TOCEntryGuid );
LocalAddStudentSubmission( this.m_Slide.SubmissionSlideGuid, TOCEntryGuid );
}
}
// Send a generic update with information about the slide (including the new bounds/zoom).
Message message, deck;
message = new PresentationInformationMessage( this.m_Presentation );
message.InsertChild( deck = new DeckInformationMessage( this.m_Deck ) );
deck.InsertChild( new SlideInformationMessage( this.m_Slide ) );
this.m_Sender.Send( message );
}
private void HandleDeckBackgroundColorChanged(object sender, PropertyEventArgs args_)
{
// No need to send this during ForceUpdate since the DeckTraversalNetworkService
// will already have sent a DeckInformationMessage containing this information.
Message message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(new DeckInformationMessage(this.m_Deck));
this.m_Sender.Send(message);
}
private void SendGenericChange(Group receivers)
{
// Send a generic update with information about the slide (including the new bounds/zoom).
Message message, deck;
message = new PresentationInformationMessage( this.m_Presentation );
message.Group = receivers;
message.InsertChild( deck = new DeckInformationMessage( this.m_Deck ) );
deck.InsertChild( new SlideInformationMessage( this.m_Slide ) );
this.m_Sender.Send( message );
}
protected override void TearDownMember(int index, object member, object tag)
{
if(tag == null) return;
TableOfContentsModel.Entry entry = ((TableOfContentsModel.Entry) member);
Message message, deck, slide;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Service.m_Deck));
deck.InsertChild(slide = new SlideInformationMessage(entry.Slide));
slide.InsertChild(new TableOfContentsEntryRemovedMessage(entry));
this.m_Service.m_Sender.Send(message);
}
private void HandleInkDeletingHelper(string[] ids)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
slide.InsertChild(sheet = new InkSheetStrokesDeletingMessage(this.m_Sheet, this.SheetCollectionSelector, ids));
message.Tags = new MessageTags();
message.Tags.SlideID = m_SlideID;
message.Tags.BridgePriority = MessagePriority.Higher;
this.Sender.Send(message);
}
private void HandleSlideRemoved(object sender, PropertyEventArgs args_)
{
PropertyCollectionEventArgs args = ((PropertyCollectionEventArgs) args_);
SlideModel slide = ((SlideModel) args.Removed);
using(Synchronizer.Lock(this.m_SlideNetworkServices.SyncRoot)) {
SlideNetworkService service = ((SlideNetworkService) this.m_SlideNetworkServices[slide]);
if(service != null) {
this.m_SlideNetworkServices.Remove(service);
service.Dispose();
}
}
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new SlideDeletedMessage(slide));
this.m_Sender.Send(message);
}
private void SendTraversalInformation(DeckTraversalModel traversal, Group receivers)
{
Message message, deck;
message = new PresentationInformationMessage(this.m_Service.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(traversal.Deck));
deck.InsertChild(DeckTraversalMessage.ForDeckTraversal(traversal));
this.m_Service.m_Sender.Send(message);
}
private void SendAllSlidesAndContent(Group receivers)
{
using(Synchronizer.Lock(this.m_Deck.SyncRoot)) {
foreach (SlideModel slide in this.m_Deck.Slides)
this.SendSlideInformation(slide, receivers);
foreach(ByteArray hash in this.m_Deck.SlideContentKeys) {
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new DeckSlideContentMessage(this.m_Deck, hash));
message.Tags = new MessageTags();
message.Tags.BridgePriority = MessagePriority.Lowest;
SlideModel slide = this.m_Deck.GetSlideFromContent(hash);
if (slide != null) {
using (Synchronizer.Lock(slide.SyncRoot)) {
message.Tags.SlideID = slide.Id;
}
}
this.m_Sender.Send(message, MessagePriority.Low);
}
}
}
private void HandleSlideContentAdded(object sender, PropertyEventArgs args_)
{
PropertyCollectionEventArgs args = ((PropertyCollectionEventArgs) args_);
ByteArray hash = ((ByteArray) args.Added);
// For the purposes of ForceUpdate, this information is sent by SendAllSlidesAndContent.
Message message, deck;
message = new PresentationInformationMessage(this.m_Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.m_Deck));
deck.InsertChild(new DeckSlideContentMessage(this.m_Deck, hash));
if( ( this.m_Deck.Disposition & (DeckDisposition.StudentSubmission | DeckDisposition.QuickPoll) ) != 0 ) {
// If we get here in response to a new student submission received
// we don't need to send anything because we can assume the public display
// already has the slide, however if the instructor manually adds new
// slides to a student submission deck, the public display may not have them.
// For now we send in both cases, but that could be improved.
// In any case we only send slides from a Student Submission deck to Public nodes.
message.Group = Group.Submissions;
}
this.m_Sender.Send(message, MessagePriority.Low);
}
private void SendTextHelper(Group receivers)
{
Message message, deck, slide;
message = new PresentationInformationMessage(this.Presentation);
message.Group = receivers;
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage(this.Slide));
///send the text message
slide.InsertChild(new TextSheetMessage(this.sheet_, this.SheetCollectionSelector));
using (Synchronizer.Lock(this.Slide.SyncRoot)) {
message.Tags = new MessageTags();
message.Tags.SlideID = this.Slide.Id;
}
this.Sender.Send(message);
}
private void SendPollResultInformation( QuickPollResultModel result, Group receivers )
{
Message message, poll, res;
message = new PresentationInformationMessage( this.m_Service.m_Presentation );
message.Group = receivers;
poll = new QuickPollInformationMessage( this.m_Service.m_QuickPoll );
poll.Group = receivers;
message.InsertChild( poll );
res = new QuickPollResultInformationMessage( result );
res.Group = receivers;
poll.InsertChild( res );
this.m_Service.m_Sender.Send( message );
}
private void HandleInkDeletingHelper(string[] ids)
{
Message message, deck, slide, sheet;
message = new PresentationInformationMessage(this.Presentation);
message.InsertChild(deck = new DeckInformationMessage(this.Deck));
deck.InsertChild(slide = new SlideInformationMessage( GetSubmissionSlideModel(), false ));
slide.InsertChild(sheet = new InkSheetStrokesDeletingMessage(this.m_Sheet, this.SheetCollectionSelector, ids));
this.Sender.Send(message);
}