Implement CountryFilter component for RankingsOverlay

osu.Game.Tests/Visual/Online/TestSceneRankingsCountryFilter.cs

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+// 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 System;
+using System.Collections.Generic;
+using osu.Framework.Bindables;
+using osu.Game.Overlays.Rankings;
+using osu.Game.Users;
+
+namespace osu.Game.Tests.Visual.Online
+{
+    public class TestSceneRankingsCountryFilter : OsuTestScene
+    {
+        public override IReadOnlyList<Type> RequiredTypes => new[]
+        {
+            typeof(CountryFilter),
+        };
+
+        public TestSceneRankingsCountryFilter()
+        {
+            var countryBindable = new Bindable<Country>();
+            CountryFilter filter;
+
+            Add(filter = new CountryFilter
+            {
+                Country = { BindTarget = countryBindable }
+            });
+
+            var country = new Country
+            {
+                FlagName = "BY",
+                FullName = "Belarus"
+            };
+            var unknownCountry = new Country
+            {
+                FlagName = "CK",
+                FullName = "Cook Islands"
+            };
+
+            AddStep("Set country", () => countryBindable.Value = country);
+            AddStep("Set null country", () => countryBindable.Value = null);
+            AddStep("Set country with no flag", () => countryBindable.Value = unknownCountry);
+        }
+    }
+}

osu.Game/Overlays/Rankings/CountryFilter.cs

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+// 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 System;
+using osu.Framework.Allocation;
+using osu.Framework.Bindables;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Input.Events;
+using osu.Game.Graphics;
+using osu.Game.Graphics.Sprites;
+using osu.Game.Graphics.UserInterface;
+using osu.Game.Users;
+using osu.Game.Users.Drawables;
+using osuTK;
+
+namespace osu.Game.Overlays.Rankings
+{
+    public class CountryFilter : Container
+    {
+        private const int duration = 200;
+        private const int height = 50;
+
+        public readonly Bindable<Country> Country = new Bindable<Country>();
+
+        private readonly Box background;
+        private readonly CountryPill countryPill;
+        private readonly Container content;
+
+        public CountryFilter()
+        {
+            RelativeSizeAxes = Axes.X;
+            Child = content = new Container
+            {
+                RelativeSizeAxes = Axes.X,
+                Height = height,
+                Alpha = 0,
+                Children = new Drawable[]
+                {
+                    background = new Box
+                    {
+                        RelativeSizeAxes = Axes.Both
+                    },
+                    new FillFlowContainer
+                    {
+                        Anchor = Anchor.CentreLeft,
+                        Origin = Anchor.CentreLeft,
+                        Direction = FillDirection.Horizontal,
+                        Spacing = new Vector2(10, 0),
+                        Margin = new MarginPadding { Left = UserProfileOverlay.CONTENT_X_MARGIN },
+                        Children = new Drawable[]
+                        {
+                            new OsuSpriteText
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.CentreLeft,
+                                Text = @"filtered by country:",
+                                Font = OsuFont.GetFont(size: 14)
+                            },
+                            countryPill = new CountryPill
+                            {
+                                Anchor = Anchor.CentreLeft,
+                                Origin = Anchor.CentreLeft,
+                                Alpha = 0,
+                                Country = { BindTarget = Country }
+                            }
+                        }
+                    }
+                }
+            };
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(OsuColour colours)
+        {
+            background.Colour = colours.GreySeafoam;
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+            Country.BindValueChanged(onCountryChanged, true);
+        }
+
+        private void onCountryChanged(ValueChangedEvent<Country> country)
+        {
+            countryPill.ClearTransforms();
+
+            if (country.NewValue == null)
+            {
+                countryPill.Collapse();
+                this.ResizeHeightTo(0, duration, Easing.OutQuint);
+                content.FadeOut(duration, Easing.OutQuint);
+                return;
+            }
+
+            this.ResizeHeightTo(height, duration, Easing.OutQuint);
+            content.FadeIn(duration, Easing.OutQuint).Finally(_ => countryPill.Expand());
+        }
+
+        private class CountryPill : CircularContainer
+        {
+            private readonly Box background;
+            private readonly UpdateableFlag flag;
+            private readonly OsuSpriteText countryName;
+
+            public readonly Bindable<Country> Country = new Bindable<Country>();
+
+            public CountryPill()
+            {
+                AutoSizeDuration = duration;
+                AutoSizeEasing = Easing.OutQuint;
+                Height = 25;
+                Masking = true;
+                Children = new Drawable[]
+                {
+                    background = new Box
+                    {
+                        RelativeSizeAxes = Axes.Both
+                    },
+                    new FillFlowContainer
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        RelativeSizeAxes = Axes.Y,
+                        AutoSizeAxes = Axes.X,
+                        Margin = new MarginPadding { Horizontal = 10 },
+                        Direction = FillDirection.Horizontal,
+                        Spacing = new Vector2(8, 0),
+                        Children = new Drawable[]
+                        {
+                            new FillFlowContainer
+                            {
+                                RelativeSizeAxes = Axes.Y,
+                                AutoSizeAxes = Axes.X,
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                Direction = FillDirection.Horizontal,
+                                Spacing = new Vector2(3, 0),
+                                Children = new Drawable[]
+                                {
+                                    flag = new UpdateableFlag
+                                    {
+                                        Anchor = Anchor.Centre,
+                                        Origin = Anchor.Centre,
+                                        Size = new Vector2(22, 15)
+                                    },
+                                    countryName = new OsuSpriteText
+                                    {
+                                        Anchor = Anchor.Centre,
+                                        Origin = Anchor.Centre,
+                                        Font = OsuFont.GetFont(size: 14)
+                                    }
+                                }
+                            },
+                            new CloseButton
+                            {
+                                Anchor = Anchor.Centre,
+                                Origin = Anchor.Centre,
+                                ClickAction = () => Country.Value = null
+                            }
+                        }
+                    }
+                };
+            }
+
+            [BackgroundDependencyLoader]
+            private void load(OsuColour colours)
+            {
+                background.Colour = colours.GreySeafoamDarker;
+            }
+
+            protected override void LoadComplete()
+            {
+                base.LoadComplete();
+                Country.BindValueChanged(onCountryChanged, true);
+            }
+
+            public void Expand()
+            {
+                AutoSizeAxes = Axes.X;
+                this.FadeIn(duration, Easing.OutQuint);
+            }
+
+            public void Collapse()
+            {
+                AutoSizeAxes = Axes.None;
+                this.ResizeWidthTo(0, duration, Easing.OutQuint);
+                this.FadeOut(duration, Easing.OutQuint);
+            }
+
+            private void onCountryChanged(ValueChangedEvent<Country> country)
+            {
+                if (country.NewValue == null)
+                    return;
+
+                flag.Country = country.NewValue;
+                countryName.Text = country.NewValue.FullName;
+            }
+
+            private class CloseButton : Container
+            {
+                public Action ClickAction;
+
+                [BackgroundDependencyLoader]
+                private void load(OsuColour colours)
+                {
+                    AutoSizeAxes = Axes.Both;
+                    Children = new Drawable[]
+                    {
+                        new SpriteIcon
+                        {
+                            Size = new Vector2(8),
+                            Icon = FontAwesome.Solid.Times,
+                            Colour = colours.GreySeafoamLighter,
+                        },
+                        new HoverClickSounds(),
+                    };
+                }
+
+                protected override bool OnClick(ClickEvent e)
+                {
+                    ClickAction?.Invoke();
+                    return base.OnClick(e);
+                }
+            }
+        }
+    }
+}