front: display simulation results only if a train is selected or get data is ready

[clarani]

closes #10031

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.81%. Comparing base (465d3d1) to head (5fbb2ac).
Report is 2 commits behind head on dev.

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Additional details and impacted files

@@            Coverage Diff             @@
##              dev   #10035      +/-   ##
==========================================
- Coverage   79.83%   79.81%   -0.02%     
==========================================
  Files        1054     1054              
  Lines      105547   105545       -2     
  Branches      726      726              
==========================================
- Hits        84261    84246      -15     
- Misses      21244    21257      +13     
  Partials       42       42              

Flag	Coverage Δ
editoast	73.70% <ø> (-0.05%)	⬇️
front	89.14% <100.00%> (-0.01%)	⬇️
gateway	2.18% <ø> (ø)
osrdyne	3.28% <ø> (ø)
railjson_generator	87.50% <ø> (ø)
tests	87.00% <ø> (ø)

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[SharglutDev]

Works great, just one question :)

[theocrsb]

LGTM and tested, but I agree with @SharglutDev :)

[SharglutDev]

If I delete the selected train (which is not the projected one), it seems there is no new one selected (or probably it goes on an invalid one) and we keep seeing the map/output table loader.

Enregistrement.de.l.ecran.2024-12-17.a.09.07.26.mov

[clarani]

You're right, I think it's fixed like this, what do you think ?

[SharglutDev]

Thank you for the last change, everything looks great !