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Merge pull request #13375 from smoogipoo/fix-multi-nullref

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Fix possible nullref when exiting song select too fast
This commit is contained in:
Dean Herbert 2021-06-08 20:47:40 +09:00 committed by GitHub
commit 25af4dfa8a
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 46 additions and 3 deletions
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36
osu.Game.Tests/Visual/Navigation/TestSceneScreenNavigation.cs
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@ -9,16 +9,19 @@ using osu.Framework.Screens;
using osu.Framework.Testing;
using osu.Game.Beatmaps;
using osu.Game.Graphics.UserInterface;
using osu.Game.Online.Multiplayer;
using osu.Game.Overlays;
using osu.Game.Overlays.Mods;
using osu.Game.Overlays.Toolbar;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.Osu.Mods;
using osu.Game.Screens.OnlinePlay.Components;
using osu.Game.Screens.Play;
using osu.Game.Screens.Ranking;
using osu.Game.Screens.Select;
using osu.Game.Screens.Select.Options;
using osu.Game.Tests.Beatmaps.IO;
using osu.Game.Tests.Visual.Multiplayer;
using osuTK;
using osuTK.Input;
@ -152,6 +155,14 @@ namespace osu.Game.Tests.Visual.Navigation
AddUntilStep("wait for track", () => !Game.MusicController.CurrentTrack.IsDummyDevice && Game.MusicController.IsPlaying);
}
[Test]
public void TestPushSongSelectAndPressBackButtonImmediately()
{
AddStep("push song select", () => Game.ScreenStack.Push(new TestPlaySongSelect()));
AddStep("press back button", () => Game.ChildrenOfType<BackButton>().First().Action());
AddWaitStep("wait two frames", 2);
}
[Test]
public void TestExitSongSelectWithClick()
{
@ -298,6 +309,18 @@ namespace osu.Game.Tests.Visual.Navigation
AddAssert("Toolbar is hidden", () => Game.Toolbar.State.Value == Visibility.Hidden);
}
[Test]
public void TestPushMatchSubScreenAndPressBackButtonImmediately()
{
TestMultiplayer multiplayer = null;
PushAndConfirm(() => multiplayer = new TestMultiplayer());
AddStep("open room", () => multiplayer.OpenNewRoom());
AddStep("press back button", () => Game.ChildrenOfType<BackButton>().First().Action());
AddWaitStep("wait two frames", 2);
}
private void pushEscape() =>
AddStep("Press escape", () => InputManager.Key(Key.Escape));
@ -322,5 +345,18 @@ namespace osu.Game.Tests.Visual.Navigation
protected override bool DisplayStableImportPrompt => false;
}
private class TestMultiplayer : Screens.OnlinePlay.Multiplayer.Multiplayer
{
[Cached(typeof(MultiplayerClient))]
public readonly TestMultiplayerClient Client;
public TestMultiplayer()
{
Client = new TestMultiplayerClient((TestMultiplayerRoomManager)RoomManager);
}
protected override RoomManager CreateRoomManager() => new TestMultiplayerRoomManager();
}
}
}

5
osu.Game/OsuGame.cs
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@ -651,9 +651,10 @@ namespace osu.Game
Origin = Anchor.BottomLeft,
Action = () =>
{
var currentScreen = ScreenStack.CurrentScreen as IOsuScreen;
if (!(ScreenStack.CurrentScreen is IOsuScreen currentScreen))
return;
if (currentScreen?.AllowBackButton == true && !currentScreen.OnBackButton())
if (!((Drawable)currentScreen).IsLoaded || (currentScreen.AllowBackButton && !currentScreen.OnBackButton()))
ScreenStack.Exit();
}
},

3
osu.Game/Screens/IOsuScreen.cs
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@ -67,8 +67,11 @@ namespace osu.Game.Screens
/// Invoked when the back button has been pressed to close any overlays before exiting this <see cref="IOsuScreen"/>.
/// </summary>
/// <remarks>
/// If this <see cref="IOsuScreen"/> has not yet finished loading, the exit will occur immediately without this method being invoked.
/// <para>
/// Return <c>true</c> to block this <see cref="IOsuScreen"/> from being exited after closing an overlay.
/// Return <c>false</c> if this <see cref="IOsuScreen"/> should continue exiting.
/// </para>
/// </remarks>
bool OnBackButton();
}

5
osu.Game/Screens/OnlinePlay/OnlinePlayScreen.cs
View File

@ -253,7 +253,10 @@ namespace osu.Game.Screens.OnlinePlay
public override bool OnBackButton()
{
if ((screenStack.CurrentScreen as IOnlinePlaySubScreen)?.OnBackButton() == true)
if (!(screenStack.CurrentScreen is IOnlinePlaySubScreen onlineSubScreen))
return false;
if (((Drawable)onlineSubScreen).IsLoaded && onlineSubScreen.AllowBackButton && onlineSubScreen.OnBackButton())
return true;
if (screenStack.CurrentScreen != null && !(screenStack.CurrentScreen is LoungeSubScreen))