osu-lazer/osu.Game/Users/Avatar.cs

// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE

using System;
using osu.Framework.Allocation;
using osu.Framework.Configuration;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Cursor;
using osu.Framework.Graphics.Sprites;
using osu.Framework.Graphics.Textures;
using osu.Framework.Input.Events;
using osu.Game.Graphics.Containers;

namespace osu.Game.Users
{
    public class Avatar : Container
    {
        /// <summary>
        /// Whether to open the user's profile when clicked.
        /// </summary>
        public readonly BindableBool OpenOnClick = new BindableBool(true);

        private readonly User user;

        [Resolved(CanBeNull = true)]
        private OsuGame game { get; set; }

        /// <summary>
        /// An avatar for specified user.
        /// </summary>
        /// <param name="user">The user. A null value will get a placeholder avatar.</param>
        public Avatar(User user = null)
        {
            this.user = user;
        }

        [BackgroundDependencyLoader]
        private void load(LargeTextureStore textures)
        {
            if (textures == null)
                throw new ArgumentNullException(nameof(textures));

            Texture texture = null;
            if (user != null && user.Id > 1) texture = textures.Get($@"https://a.ppy.sh/{user.Id}");
            if (texture == null) texture = textures.Get(@"Online/avatar-guest");

            ClickableArea clickableArea;
            Add(clickableArea = new ClickableArea
            {
                RelativeSizeAxes = Axes.Both,
                Child = new Sprite
                {
                    RelativeSizeAxes = Axes.Both,
                    Texture = texture,
                    FillMode = FillMode.Fit,
                    Anchor = Anchor.Centre,
                    Origin = Anchor.Centre
                },
                Action = openProfile
            });

            clickableArea.Enabled.BindTo(OpenOnClick);
        }

        private void openProfile()
        {
            if (!OpenOnClick)
                return;

            if (user != null)
                game?.ShowUser(user.Id);
        }

        private class ClickableArea : OsuClickableContainer, IHasTooltip
        {
            public string TooltipText => Enabled.Value ? @"View Profile" : null;

            protected override bool OnClick(ClickEvent e)
            {
                if (!Enabled)
                    return false;
                return base.OnClick(e);
            }
        }
    }
}