protected override bool UpdateTarget(ReceiveContext context) { if (SubmissionStatusModel.GetInstance().Role == "student" && sender_.Role == "instructor") { Guid id1; Guid id2; using (Synchronizer.Lock(SubmissionStatusModel.GetInstance().SyncRoot)){ id1 = SubmissionStatusModel.GetInstance().Id; } using (Synchronizer.Lock(sender_.SyncRoot)) { id2 = sender_.Id; } if (id1 == id2) { using (Synchronizer.Lock(SubmissionStatusModel.GetInstance().SyncRoot)) { SubmissionStatusModel.GetInstance().SubmissionStatus = SubmissionStatusModel.Status.Received; } } } else if (SubmissionStatusModel.GetInstance().Role == "instructor" && sender_.Role == "student") { Guid id1; using (Synchronizer.Lock(sender_.SyncRoot)) { id1 = sender_.Id; } using (Synchronizer.Lock(SubmissionStatusModel.GetInstance().SyncRoot)) { ///we need to toggle the Id in order for the listener to recognize the event. SubmissionStatusModel.GetInstance().Id = Guid.Empty; SubmissionStatusModel.GetInstance().Id = id1; } } return(true); }
public SubmissionStatusNetworkService(SendingQueue sender, RoleModel role) { submission_status_model_ = SubmissionStatusModel.GetInstance(); if (role is StudentModel) { submission_status_model_.Role = "student"; submission_status_model_.Changed["SubmissionStatus"].Add(new PropertyEventHandler(this.StudentSendStatus)); } else if (role is InstructorModel) { submission_status_model_.Role = "instructor"; submission_status_model_.Changed["Id"].Add(new PropertyEventHandler(this.InstructorSendStatus)); } sender_ = sender; }
/// <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); } } } }
public SubmissionStatusMessage(Message parent, SerializedPacket p) : base(parent, p) { this.sender_ = (!SerializedPacket.IsNullPacket(p.PeekNextPart())) ? new SubmissionStatusModel(p.PeekNextPart()) : null; p.GetNextPart(); }
/// <summary> /// constructor for creating a confirmation message from the instructor. /// Here Id is the id of the student this message is for. /// </summary> /// <param name="status"></param> /// <param name="id"></param> public SubmissionStatusMessage(SubmissionStatusModel submission_model) : base(Guid.NewGuid()) { ///the model that send this. sender_ = submission_model; }