How do you notify an app that the active document is closed ?

CLEMENT

Problem statement:
My app is currently listening to a state updater event:

SBSimulatorEvent::StateUpdateEnd

but when I close the document my app is not notified and tries to address some elements that are not anymore in the datagraph and therefore crash...

Yassine

Hi Clement,

To listen to the document closed signal I connect my nodes to a custom signal like this:

SB_FOR(SBNode* node, atomIndexer) node->connectBaseSignalToSlot(this, SB_SLOT(&SENormalModesAnalysisApp::onBaseEvent));

Then, in my onBaseEvent function I catch the NodeEraseBegin event which corresponds to the signal emitted when the document is closed or the nodes erased.

void SENormalModesAnalysisApp::onBaseEvent(SBBaseEvent* event) {

if (event->getType() == SBBaseEvent::NodeEraseBegin) {

//disconnet the connected nodes		
SB_FOR(SBNode* node, atomIndexer)
{node->disconnectBaseSignalFromSlot(this, SB_SLOT(&SENormalModesAnalysisApp::onBaseEvent));
}

//....//

}

Remember to disconnect the connected nodes.
Hope I answered your question,
Yassine

Yassine

Hi Clement,

To listen to the document closed signal I connect my nodes to a custom signal like this:

SB_FOR(SBNode* node, atomIndexer) node->connectBaseSignalToSlot(this, SB_SLOT(&SENormalModesAnalysisApp::onBaseEvent));

Then, in my onBaseEvent function I catch the NodeEraseBegin event which corresponds to the signal emitted when the document is closed or the nodes erased.

void SENormalModesAnalysisApp::onBaseEvent(SBBaseEvent* event) {

if (event->getType() == SBBaseEvent::NodeEraseBegin) {

//disconnet the connected nodes		
SB_FOR(SBNode* node, atomIndexer)
{node->disconnectBaseSignalFromSlot(this, SB_SLOT(&SENormalModesAnalysisApp::onBaseEvent));
}

//....//

}

Remember to disconnect the connected nodes.
Hope I answered your question,
Yassine

Solved How do you notify an app that the active document is closed ?