Issues with onViewerAdded and onViewerClosed events

Issues
1

onViewerAdded event is sent twice and onViewerClosed is never sent. To reproduce please run the following snippet, and then from the main menu open the Filters viewer (Add->Filters). After that close the Filters by clicking on the x button on the viewer’s toolbar.

let grid = grok.shell.addTableView(grok.data.demo.randomWalk(100, 100)).grid;

let nCallCount = 0;
grok.events.onViewerAdded.subscribe((args) => {
    ++nCallCount;
   console.log("Call Count: " + nCallCount);
});

grok.events.onViewerClosed.subscribe((args) => {
    console.log("Never gets called.");
});
2

Hi and sorry for delay!
I fixed duplicate events, but can’t now reproduce absent of the onViewerClosed event. Could you reproduce it on dev.datagrok.ai?

3

I can confirm that onViewerClosed is now called, but both onViewerAdded and onViewerClosed are called 4-5 times each, so the issue doesn’t seem to be fixed.

4

Dev server wasn’t redeployed, please check it now.

5

Now both seem to be fixed when a viewer is opened using the main menu, but not when using the JS API in which case none is called.

const viewerFilters = DG.Viewer.filters(dframe);
grok.shell.dockManager.dock(viewerFilters.root, ‘left’, null, ‘Filters’);

1 Like
6

Ok, I will check it.

7

These events should not be triggered when you use grok.shell.dockManager.dock(), because it’s a general dock. But they will be triggered if you use TableView.addViewer().