Typing indicator (typing chat bubble) (#8215)

Content.Shared/Chat/TypingIndicator/SharedTypingIndicatorSystem.cs

@@ -0,0 +1,9 @@
+namespace Content.Shared.Chat.TypingIndicator;
+
+/// <summary>
+///     Sync typing indicator icon between client and server.
+/// </summary>
+public abstract class SharedTypingIndicatorSystem : EntitySystem
+{
+
+}

Content.Shared/Chat/TypingIndicator/TypingChangedEvent.cs

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+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Chat.TypingIndicator;
+
+/// <summary>
+///     Networked event from client.
+///     Send to server when client started/stopped typing in chat input field.
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class TypingChangedEvent : EntityEventArgs
+{
+    public readonly EntityUid Uid;
+    public readonly bool IsTyping;
+
+    public TypingChangedEvent(EntityUid uid, bool isTyping)
+    {
+        Uid = uid;
+        IsTyping = isTyping;
+    }
+}

Content.Shared/Chat/TypingIndicator/TypingIndicatorComponent.cs

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+using Robust.Shared.GameStates;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
+
+namespace Content.Shared.Chat.TypingIndicator;
+
+/// <summary>
+///     Show typing indicator icon when player typing text in chat box.
+///     Added automatically when player poses entity.
+/// </summary>
+[RegisterComponent, NetworkedComponent]
+[Friend(typeof(SharedTypingIndicatorSystem))]
+public sealed class TypingIndicatorComponent : Component
+{
+    /// <summary>
+    ///     Prototype id that store all visual info about typing indicator.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadOnly)]
+    [DataField("proto", customTypeSerializer: typeof(PrototypeIdSerializer<TypingIndicatorPrototype>))]
+    public string Prototype = "default";
+}

Content.Shared/Chat/TypingIndicator/TypingIndicatorPrototype.cs

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+using Robust.Shared.Prototypes;
+using Robust.Shared.Utility;
+
+namespace Content.Shared.Chat.TypingIndicator;
+
+/// <summary>
+///     Prototype to store chat typing indicator visuals.
+/// </summary>
+[Prototype("typingIndicator")]
+public sealed class TypingIndicatorPrototype : IPrototype
+{
+    [IdDataFieldAttribute]
+    public string ID { get; } = default!;
+
+    [DataField("spritePath")]
+    public ResourcePath SpritePath = new("/Textures/Effects/speech.rsi");
+
+    [DataField("typingState", required: true)]
+    public string TypingState = default!;
+
+    [DataField("offset")]
+    public Vector2 Offset = new(0.5f, 0.5f);
+
+    [DataField("shader")]
+    public string Shader = "unshaded";
+
+}

Content.Shared/Chat/TypingIndicator/TypingIndicatorVisuals.cs

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+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Chat.TypingIndicator;
+
+[Serializable, NetSerializable]
+public enum TypingIndicatorVisuals : byte
+{
+    IsTyping
+}
+
+[Serializable]
+public enum TypingIndicatorLayers : byte
+{
+    Base
+}