Add ITitleScreenMenu and Scoped Service. (#1379)

Dalamud/Plugin/Services/ITitleScreenMenu.cs

@@ -0,0 +1,44 @@
+using System.Collections.Generic;
+
+using Dalamud.Interface;
+using ImGuiScene;
+
+namespace Dalamud.Plugin.Services;
+
+/// <summary>
+/// Interface for class responsible for managing elements in the title screen menu.
+/// </summary>
+public interface ITitleScreenMenu
+{
+    /// <summary>
+    /// Gets the list of entries in the title screen menu.
+    /// </summary>
+    public IReadOnlyList<TitleScreenMenuEntry> Entries { get; }
+
+    /// <summary>
+    /// Adds a new entry to the title screen menu.
+    /// </summary>
+    /// <param name="text">The text to show.</param>
+    /// <param name="texture">The texture to show.</param>
+    /// <param name="onTriggered">The action to execute when the option is selected.</param>
+    /// <returns>A <see cref="TitleScreenMenu"/> object that can be used to manage the entry.</returns>
+    /// <exception cref="ArgumentException">Thrown when the texture provided does not match the required resolution(64x64).</exception>
+    public TitleScreenMenuEntry AddEntry(string text, TextureWrap texture, Action onTriggered);
+
+    /// <summary>
+    /// Adds a new entry to the title screen menu.
+    /// </summary>
+    /// <param name="priority">Priority of the entry.</param>
+    /// <param name="text">The text to show.</param>
+    /// <param name="texture">The texture to show.</param>
+    /// <param name="onTriggered">The action to execute when the option is selected.</param>
+    /// <returns>A <see cref="TitleScreenMenu"/> object that can be used to manage the entry.</returns>
+    /// <exception cref="ArgumentException">Thrown when the texture provided does not match the required resolution(64x64).</exception>
+    public TitleScreenMenuEntry AddEntry(ulong priority, string text, TextureWrap texture, Action onTriggered);
+
+    /// <summary>
+    /// Remove an entry from the title screen menu.
+    /// </summary>
+    /// <param name="entry">The entry to remove.</param>
+    public void RemoveEntry(TitleScreenMenuEntry entry);
+}