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Code Issues Releases Wiki Activity

Ensure account creation overlay is shown after logout

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Scheduling the entire API state change callback caused the scheduled
hide to fire the first time the user attempted to display the account
creation overlay after a logout, because the drawable wasn't present
before that (so its scheduler wasn't running).

It is not theoretically safe to run `Hide()` unscheduled at its present
call site (as the value change callbacks are fired on the background
API thread). This could also be fixed by setting `AlwaysPresent = true`,
but that's a pretty ugly and unperformant change to make in general.
This commit is contained in:
Bartłomiej Dach 2020-12-25 15:37:14 +01:00
parent 3a6a3a067b
commit 0d8fb83d0a
1 changed files with 12 additions and 3 deletions
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15
osu.Game/Overlays/AccountCreationOverlay.cs
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@ -9,6 +9,7 @@ using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Effects;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Screens;
using osu.Framework.Threading;
using osu.Game.Graphics;
using osu.Game.Graphics.Containers;
using osu.Game.Online.API;
@ -93,6 +94,11 @@ namespace osu.Game.Overlays
if (welcomeScreen.GetChildScreen() != null)
welcomeScreen.MakeCurrent();
// there might be a stale scheduled hide from a previous API state change.
// cancel it here so that the overlay is not hidden again after one frame.
scheduledHide?.Cancel();
scheduledHide = null;
}
protected override void PopOut()
@ -101,7 +107,9 @@ namespace osu.Game.Overlays
this.FadeOut(100);
}
private void apiStateChanged(ValueChangedEvent<APIState> state) => Schedule(() =>
private ScheduledDelegate scheduledHide;
private void apiStateChanged(ValueChangedEvent<APIState> state)
{
switch (state.NewValue)
{
@ -113,9 +121,10 @@ namespace osu.Game.Overlays
break;
case APIState.Online:
Hide();
scheduledHide?.Cancel();
scheduledHide = Schedule(Hide);
break;
}
});
}
}
}