void PopupIntellisensePresenter_PropertyChanged(IHexPopupIntellisensePresenter popupPresenter, string propertyName)
{
if (wpfHexView.IsClosed)
{
UnregisterPopupIntellisensePresenterEvents(popupPresenter);
return;
}
var sessionState = TryGetSessionState(popupPresenter);
Debug.Assert(sessionState != null);
if (sessionState == null)
{
return;
}
if (propertyName == nameof(popupPresenter.PresentationSpan) || propertyName == nameof(popupPresenter.PopupStyles))
{
var presentationSpan = popupPresenter.PresentationSpan;
if (presentationSpan.IsDefault || sessionState.SpaceReservationAgent == null)
{
PresenterUpdated(popupPresenter.Session);
}
else
{
sessionState.SpaceReservationManager.UpdatePopupAgent(sessionState.SpaceReservationAgent, presentationSpan, popupPresenter.PopupStyles);
}
}
else if (propertyName == nameof(popupPresenter.SurfaceElement))
{
PresenterUpdated(popupPresenter.Session);
}
}
void UnregisterPopupIntellisensePresenterEvents(IHexPopupIntellisensePresenter popupPresenter)
{
if (popupPresenter != null)
{
popupPresenter.PopupStylesChanged -= PopupIntellisensePresenter_PopupStylesChanged;
popupPresenter.PresentationSpanChanged -= PopupIntellisensePresenter_PresentationSpanChanged;
popupPresenter.SurfaceElementChanged -= PopupIntellisensePresenter_SurfaceElementChanged;
}
}
SessionState TryGetSessionState(IHexPopupIntellisensePresenter popupPresenter)
{
foreach (var sessionState in sessionStates)
{
if (sessionState.PopupIntellisensePresenter == popupPresenter)
{
return(sessionState);
}
}
return(null);
}
void PopupIntellisensePresenter_PropertyChanged(IHexPopupIntellisensePresenter popupPresenter, string propertyName) {
if (wpfHexView.IsClosed) {
UnregisterPopupIntellisensePresenterEvents(popupPresenter);
return;
}
var sessionState = TryGetSessionState(popupPresenter);
Debug.Assert(sessionState != null);
if (sessionState == null)
return;
if (propertyName == nameof(popupPresenter.PresentationSpan) || propertyName == nameof(popupPresenter.PopupStyles)) {
var presentationSpan = popupPresenter.PresentationSpan;
if (presentationSpan.IsDefault || sessionState.SpaceReservationAgent == null)
PresenterUpdated(popupPresenter.Session);
else
sessionState.SpaceReservationManager.UpdatePopupAgent(sessionState.SpaceReservationAgent, presentationSpan, popupPresenter.PopupStyles);
}
else if (propertyName == nameof(popupPresenter.SurfaceElement))
PresenterUpdated(popupPresenter.Session);
}
void UnregisterPopupIntellisensePresenterEvents(IHexPopupIntellisensePresenter popupPresenter) {
if (popupPresenter != null) {
popupPresenter.PopupStylesChanged -= PopupIntellisensePresenter_PopupStylesChanged;
popupPresenter.PresentationSpanChanged -= PopupIntellisensePresenter_PresentationSpanChanged;
popupPresenter.SurfaceElementChanged -= PopupIntellisensePresenter_SurfaceElementChanged;
}
}
SessionState TryGetSessionState(IHexPopupIntellisensePresenter popupPresenter) {
foreach (var sessionState in sessionStates) {
if (sessionState.PopupIntellisensePresenter == popupPresenter)
return sessionState;
}
return null;
}