Hi @Anonymous,
Did you try asking MAQ if they could add the feature? It might take a while but that might be your best bet if you're not looking to develop.
If you do want to try developong this yourself, I've had a quick look through their source code and it looks like they are using a fairly standard approach of handling the visual's behaviour using one of the utilities provided by the Custom Visuals Team.
Their implementation is not quite the same as the linked doc but it is the same approach and I would start here first.
It should be possible to adapt the code to bind a contextmenu event using something similar to the code in step 6 of this walkthough on the same page.
I don't have the capacity at present to check-out their code and test in situ but I would start with amending bindEvents in src/behavior.ts as follows:
public bindEvents(options: IGanttBehaviorOptions, selectionHandler: ISelectionHandler): void {
this.options = options;
this.selectionHandler = selectionHandler;
options.taskSelection.on("click", (d: SelectionDataPoint) => {
selectionHandler.handleSelection(d, (d3.event as MouseEvent).ctrlKey);
(d3.event as MouseEvent).stopPropagation();
});
/* -- START OF CHANGES -- */
options.taskSelection.on("contextmenu", (d: SelectionDataPoint) => {
const event = (d3.event as MouseEvent);
selectionHandler.handleContextMenu(d, { x: event.clientX, y: event.clientY });
event.stopPropagation();
});
/* -- END OF CHANGES -- */
}
However this will depend on what context they are assigning to the selectable data points in the visual - if you want to drillthrough on the same column they're using then you should get the context menu displayed with an option to drill through.
If the context menu appears but there's no drillthrough, then it's highly likely that the selection ID applied to the element is not what you need. If this is the case, then you'll need to provide us with more details - ideally some representative data for your use case and we can take another look at it
Good luck,
Daniel
