Connected.Components/Components/NavMenu/NavGroup.razor.cs

using Connected.Annotations;
using Connected.Utilities;
using Microsoft.AspNetCore.Components;

namespace Connected.Components;

public partial class NavGroup : UIComponent
{
   protected string Classname =>
   new CssBuilder("mud-nav-group")
     .AddClass(Class)
     .AddClass($"mud-nav-group-disabled", Disabled)
     .Build();

   protected string ButtonClassname =>
   new CssBuilder("mud-nav-link")
     .AddClass($"mud-ripple", !DisableRipple)
     .AddClass("mud-expanded", Expanded)
     .Build();

   protected string IconClassname =>
   new CssBuilder("mud-nav-link-icon")
     .AddClass($"mud-nav-link-icon-default", IconColor == ThemeColor.Default)
     .Build();

   protected string ExpandIconClassname =>
   new CssBuilder("mud-nav-link-expand-icon")
     .AddClass($"mud-transform", Expanded && !Disabled)
     .AddClass($"mud-transform-disabled", Expanded && Disabled)
     .Build();

   [Parameter]
   [Category(CategoryTypes.NavMenu.Behavior)]
   public string Title { get; set; }

   /// <summary>
   /// Icon to use if set.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Behavior)]
   public string Icon { get; set; }

   /// <summary>
   /// The color of the icon. It supports the theme colors, default value uses the themes drawer icon color.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Appearance)]
   public ThemeColor IconColor { get; set; } = ThemeColor.Default;

   /// <summary>
   /// If true, the button will be disabled.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Behavior)]
   public bool Disabled { get; set; }

   /// <summary>
   /// If true, disables ripple effect.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Appearance)]
   public bool DisableRipple { get; set; }

   private bool _expanded;
   /// <summary>
   /// If true, expands the nav group, otherwise collapse it. 
   /// Two-way bindable
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Behavior)]
   public bool Expanded
   {
      get => _expanded;
      set
      {
         if (_expanded == value)
            return;

         _expanded = value;
         ExpandedChanged.InvokeAsync(_expanded);
      }
   }

   [Parameter] public EventCallback<bool> ExpandedChanged { get; set; }

   /// <summary>
   /// If true, hides expand-icon at the end of the NavGroup.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Appearance)]
   public bool HideExpandIcon { get; set; }

   /// <summary>
   /// Explicitly sets the height for the Collapse element to override the css default.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Appearance)]
   public int? MaxHeight { get; set; }

   /// <summary>
   /// If set, overrides the default expand icon.
   /// </summary>
   [Parameter]
   [Category(CategoryTypes.NavMenu.Appearance)]
   public string ExpandIcon { get; set; } = @Icons.Filled.ArrowDropDown;

   [Parameter]
   [Category(CategoryTypes.NavMenu.Behavior)]
   public RenderFragment ChildContent { get; set; }

   protected void ExpandedToggle()
   {
      _expanded = !Expanded;
      ExpandedChanged.InvokeAsync(_expanded);
   }
}