public static void EnableDisableButton(Button button, bool enabled)
{
if (button.InvokeRequired)
{
EnableDisableButtonDelegate button2 = new EnableDisableButtonDelegate(EnableDisableButton);
button.Invoke(button2, new object[] { button, enabled });
}
else
{
button.Enabled = enabled;
}
}
/// <summary>
/// Handles the event raised when the active conversation is terminated and removed from the collection of conversations
/// on ConversationManager.Conversations
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void ConversationManager_ConversationRemoved(object sender, ConversationManagerEventArgs e)
{
//If the removed conversation is the conversation hosted by this window then resume listening for new conversations.
if (_conversation == e.Conversation)
{
EnableDisableButtonDelegate buttonDelegate = new EnableDisableButtonDelegate(EnableDisableButton);
this.Invoke(new SetContactSelectionModeDelegate(SetContactSelectionMode), new object[] { SelectionMode.MultiSimple });
this.Invoke(buttonDelegate, new object[] { EndConversation_Button, false });
this.Invoke(buttonDelegate, new object[] { Disconnect_Button, false });
this.Invoke(buttonDelegate, new object[] { Request_Button, false });
this.Invoke(buttonDelegate, new object[] { StartSharingResource_Button, false });
this.Invoke(buttonDelegate, new object[] { Start_Button, true });
this.Invoke(new ChangeLabelTextDelegate(ChangeLabelText), new object[] { ContactList_Label, "1) Choose contacts" });
this.Invoke(new UpdateSharedResourcesListboxDelegate(UpdateSharedResourcesListbox));
this.Invoke(new LoadAllContactsDelegate(LoadAllContacts));
//Un-register for participant events on the conversation that is terminated.
_conversation.ParticipantAdded -= _conversation_ParticipantAdded;
_conversation.ParticipantRemoved -= _conversation_ParticipantRemoved;
_conversation.StateChanged -= _conversation_StateChanged;
//Unregister for events on the terminated conversation's sharing modality events.
_sharingModality.ModalityStateChanged -= _sharingModality_ModalityStateChanged;
_sharingModality.ControlRequestReceived -= _sharingModality_ControlRequestReceived;
_sharingModality.LocalSharedResourcesChanged -= _sharingModality_LocalSharedResourcesChanged;
_sharingModality.ControllerChanged -= _sharingModality_ControllerChanged;
_sharingModality.ActionAvailabilityChanged -= _sharingModality_ActionAvailabilityChanged;
//Unregister for the application sharing events on each and every participant in the terminated
//conversation
foreach (string contactUri in _selectedContacts.Keys)
{
ApplicationSharingModality participantSharingModality = (ApplicationSharingModality)_participantSharingModalities[contactUri];
participantSharingModality.ActionAvailabilityChanged -= _sharingModality_ActionAvailabilityChanged;
}
//Resume listening for new conversations
_LyncClient.ConversationManager.ConversationAdded += ConversationManager_ConversationAdded;
//de-reference the class state
_conversation = null;
_ResourceControllingContact = null;
_sharingModality = null;
_participantSharingModalities.Clear();
}
}
/// <summary>
/// Handles the event raised when a user signs in to or out of the Lync client.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void _LyncClient_StateChanged(object sender, ClientStateChangedEventArgs e)
{
EnableDisableButtonDelegate buttonDelegate = new EnableDisableButtonDelegate(EnableDisableButton);
//If the client has signed in then get the client's contact list and enable the conversation start button.
if (e.NewState == ClientState.SignedIn)
{
this.Invoke(new LoadAllContactsDelegate(LoadAllContacts));
this.Invoke(buttonDelegate, new object[] { Start_Button, true });
this.Invoke(new UpdateSharedResourcesListboxDelegate(UpdateSharedResourcesListbox));
}
else
{
this.Invoke(new ClearAllContactsDelegate(ClearAllContacts));
this.Invoke(buttonDelegate, new object[] { Start_Button, false });
this.Invoke(new ChangeLabelTextDelegate(ChangeLabelText), new object[] { ClientStateString_Label, e.NewState.ToString() });
this.Invoke(buttonDelegate, new object[] { EndConversation_Button, false });
this.Invoke(buttonDelegate, new object[] { StartSharingResource_Button, false });
}
}
/// <summary>
/// Handles the event raised when a new conversation is added. This sample only hosts one conversation
/// at a time. Once this event is handled, the sample un-registers for this event. The event is registered again when
/// this conversation is removed from the ContactManager.Conversations collection upon termination of this conversation.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void ConversationManager_ConversationAdded(object sender, Microsoft.Lync.Model.Conversation.ConversationManagerEventArgs e)
{
Boolean addedByThisProcess = true;
try
{
//Suspend hosting new conversations until this conversation is ended
_LyncClient.ConversationManager.ConversationAdded -= ConversationManager_ConversationAdded;
}
catch (Exception ex) { MessageBox.Show("Exception on de-register for ConversationAdded: " + ex.Message); }
//If this class field is null then the new conversation was not started by this running process. It was
//Started by the Lync client or by a remote user.
if (_conversation == null)
{
addedByThisProcess = false;
_conversation = e.Conversation;
}
//Register for conversation state changes such as Active->Terminated.
_conversation.StateChanged += _conversation_StateChanged;
//Register for the application sharing modality event on the conversation itself
_sharingModality = (ApplicationSharingModality)_conversation.Modalities[ModalityTypes.ApplicationSharing];
//Register for state changes like connecting->connected
_sharingModality.ModalityStateChanged += _sharingModality_ModalityStateChanged;
//Register to catch requests from other participants for control of the locally owned sharing resource.
_sharingModality.ControlRequestReceived += _sharingModality_ControlRequestReceived;
_sharingModality.ControllerChanged += _sharingModality_ControllerChanged;
//Register to catch changes in the list of local sharable resources such as a process that starts up or terminates.
_sharingModality.LocalSharedResourcesChanged += _sharingModality_LocalSharedResourcesChanged;
//Register for changes in the availbility of resource controlling actions such as grant and revoke.
_sharingModality.ActionAvailabilityChanged += _sharingModality_ActionAvailabilityChanged;
//Register for changes in the local participant's mode of sharing participation
// such as Viewing->Sharing, Requesting Control->Controlling.
_sharingModality.ParticipationStateChanged += _sharingModality_ParticipationStateChanged;
//Register for participant added events on the new conversation
//The next important action in the chain of conversation intiating action happens in the ParticipantAdded event handler.
_conversation.ParticipantAdded += _conversation_ParticipantAdded;
_conversation.ParticipantRemoved += _conversation_ParticipantRemoved;
if (addedByThisProcess == true)
{
//Clear out the contact list on the UI to be replaced with only the contacts selected for the current conversation.
this.Invoke(new ClearAllContactsDelegate(ClearAllContacts));
//Iterate on the contact dictionary that is filled from the contact Sip addresses selected from the
//contact list UI control. Add each selected contact to the conversation, causing an invitation to be
//sent to each contact.
foreach (Contact selectedContact in _selectedContacts.Values)
{
Participant newParticipant = _conversation.AddParticipant(selectedContact);
//Register for events on the conversation participant's application sharing modality
((ApplicationSharingModality)newParticipant.Modalities[ModalityTypes.ApplicationSharing]).ActionAvailabilityChanged += _sharingModality_ActionAvailabilityChanged;
}
}
//Update the list of local sharable resources on the UI
this.Invoke(new UpdateSharedResourcesListboxDelegate(UpdateSharedResourcesListbox));
//Set the enabled state of the resource sharing button, end conversation button, and start conversation button.
EnableDisableButtonDelegate buttonDelegate = new EnableDisableButtonDelegate(EnableDisableButton);
this.Invoke(buttonDelegate, new object[] { StartSharingResource_Button, true });
this.Invoke(buttonDelegate, new object[] { EndConversation_Button, true });
this.Invoke(buttonDelegate, new object[] { Start_Button, false });
}
