Add header for game list (#3)

Co-authored-by: Maxime Adler <madler@sqli.com>
Reviewed-on: #3

src/GameIdeas/Client/GameIdeas.BlazorApp/Shared/Headers/HeaderBase.razor.cs

@@ -0,0 +1,46 @@
+using GameIdeas.BlazorApp.Pages.Games.Models;
+using GameIdeas.BlazorApp.Shared.Components.Dropdown;
+using GameIdeas.Resources;
+using Microsoft.AspNetCore.Components;
+
+namespace GameIdeas.BlazorApp.Shared.Headers;
+
+public partial class HeaderBase
+{
+    [Parameter] public RenderFragment? Body { get; set; }
+    [Parameter] public EventCallback<AddType> AddTypeChanged { get; set; }
+
+    private DropdownContent<AddTypeParams>? DropdownAdd;
+    private readonly IEnumerable<AddTypeParams> AddTypes =
+    [
+        new AddTypeParams(AddType.Manual, ResourcesKey.ManualAdd),
+        new AddTypeParams(AddType.Auto, ResourcesKey.AutoAdd)
+    ];
+
+    private AccountSettings? AccountSettings;
+
+    private void HandleIconClicked()
+    {
+        throw new NotImplementedException();
+    }
+
+    private async Task HandleMoreButton()
+    {
+        if (DropdownAdd != null)
+        {
+            await DropdownAdd.OpenAsync();
+        }
+
+        AccountSettings?.Close();
+    }
+
+    private async Task HandleAddTypeClickedAsync(AddTypeParams value)
+    {
+        await AddTypeChanged.InvokeAsync(value.AddType);
+    }
+
+    private void HandleAccountClicked()
+    {
+        AccountSettings?.Toggle();
+    }
+}