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osu-lazer/osu.Game/Overlays/AccountCreationOverlay.cs
Bartłomiej Dach 0d8fb83d0a Ensure account creation overlay is shown after logout
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.
2020-12-25 15:40:39 +01:00

131 lines
4.2 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
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;
using osu.Game.Overlays.AccountCreation;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Overlays
{
public class AccountCreationOverlay : OsuFocusedOverlayContainer
{
private const float transition_time = 400;
private ScreenWelcome welcomeScreen;
public AccountCreationOverlay()
{
Size = new Vector2(620, 450);
Anchor = Anchor.Centre;
Origin = Anchor.Centre;
}
private readonly IBindable<APIState> apiState = new Bindable<APIState>();
[BackgroundDependencyLoader]
private void load(OsuColour colours, IAPIProvider api)
{
apiState.BindTo(api.State);
apiState.BindValueChanged(apiStateChanged, true);
Children = new Drawable[]
{
new Container
{
RelativeSizeAxes = Axes.Both,
EdgeEffect = new EdgeEffectParameters
{
Type = EdgeEffectType.Shadow,
Radius = 5,
Colour = Color4.Black.Opacity(0.2f),
},
Masking = true,
CornerRadius = 10,
Children = new Drawable[]
{
new Box
{
RelativeSizeAxes = Axes.Both,
Colour = Color4.Black,
Alpha = 0.6f,
},
new DelayedLoadWrapper(new AccountCreationBackground(), 0),
new Container
{
RelativeSizeAxes = Axes.Both,
Width = 0.6f,
AutoSizeDuration = transition_time,
AutoSizeEasing = Easing.OutQuint,
Children = new Drawable[]
{
new Box
{
RelativeSizeAxes = Axes.Both,
Colour = Color4.Black,
Alpha = 0.9f,
},
new ScreenStack(welcomeScreen = new ScreenWelcome())
{
RelativeSizeAxes = Axes.Both,
},
}
}
}
}
};
}
protected override void PopIn()
{
base.PopIn();
this.FadeIn(transition_time, Easing.OutQuint);
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()
{
base.PopOut();
this.FadeOut(100);
}
private ScheduledDelegate scheduledHide;
private void apiStateChanged(ValueChangedEvent<APIState> state)
{
switch (state.NewValue)
{
case APIState.Offline:
case APIState.Failing:
break;
case APIState.Connecting:
break;
case APIState.Online:
scheduledHide?.Cancel();
scheduledHide = Schedule(Hide);
break;
}
}
}
}