Add missing features to BitToggleButton (#10536)

src/BlazorUI/Bit.BlazorUI/Components/Buttons/ToggleButton/BitToggleButton.razor

@@ -19,10 +19,15 @@
     else
     {
         var iconName = GetIconName();
+        var text = GetText();
         if (iconName.HasValue())
         {
             <i style="@Styles?.Icon" class="bit-tgb-ico bit-icon bit-icon--@iconName @Classes?.Icon" />
         }
-        <span style="@Styles?.Text" class="bit-tgb-btx @Classes?.Text">@GetText()</span>
+
+        if (IconOnly is false && text.HasValue())
+        {
+            <span style="@Styles?.Text" class="bit-tgb-btx @Classes?.Text">@text</span>
+        }
     }
 </button>

src/BlazorUI/Bit.BlazorUI/Components/Buttons/ToggleButton/BitToggleButton.razor.cs

@@ -45,11 +45,23 @@ public partial class BitToggleButton : BitComponentBase
     /// </summary>
     [Parameter] public bool? DefaultIsChecked { get; set; }
 
+    /// <summary>
+    /// Preserves the foreground color of the toggle button through hover and focus.
+    /// </summary>
+    [Parameter, ResetClassBuilder]
+    public bool FixedColor { get; set; }
+
     /// <summary>
     /// The icon name that renders inside the toggle button.
     /// </summary>
     [Parameter] public string? IconName { get; set; }
 
+    /// <summary>
+    /// Determines that only the icon should be rendered and changes the styles accordingly.
+    /// </summary>
+    [Parameter, ResetClassBuilder]
+    public bool IconOnly { get; set; }
+
     /// <summary>
     /// Determines if the toggle button is in the checked state.
     /// </summary>        
@@ -133,6 +145,10 @@ protected override void RegisterCssClasses()
 
         ClassBuilder.Register(() => IsChecked ? $"bit-tgb-chk {Classes?.Checked}" : string.Empty);
 
+        ClassBuilder.Register(() => ((ChildContent is null && (Text ?? OnText ?? OffText) is null) || IconOnly) ? $"bit-tgb-ntx" : string.Empty);
+
+        ClassBuilder.Register(() => FixedColor ? "bit-tgb-fxc" : string.Empty);
+
         ClassBuilder.Register(() => Color switch
         {
             BitColor.Primary => "bit-tgb-pri",

src/BlazorUI/Bit.BlazorUI/Components/Buttons/ToggleButton/BitToggleButton.scss

@@ -7,26 +7,27 @@
     align-items: center;
     display: inline-flex;
     text-decoration: none;
-
     box-sizing: border-box;
     justify-content: center;
     font-family: $tg-font-family;
     font-weight: $tg-font-weight;
     border-width: $shp-border-width;
     border-style: $shp-border-style;
     border-radius: $shp-border-radius;
+    font-size: var(--bit-tgb-fontsize);
+    --bit-tgb-icn-margin: #{spacing(0.5)};
 
     &.bit-dis {
         cursor: default;
-        pointer-events: none;
         color: $clr-fg-dis;
+        pointer-events: none;
     }
 }
 
 .bit-tgb-ico {
     flex-shrink: 0;
     text-align: center;
-    margin: 0 spacing(0.5);
+    margin-inline-end: var(--bit-tgb-icn-margin);
 }
 
 .bit-tgb-btx {
@@ -290,16 +291,36 @@
 
 
 .bit-tgb-sm {
-    font-size: spacing(1.5);
     padding: spacing(0.5) spacing(1.5);
+    --bit-tgb-fontsize: #{spacing(1.5)};
+    --bit-tgb-ntx-pad: #{spacing(0.5)};
+    --bit-tgb-ntx-icn-size: #{spacing(2.00)};
 }
 
 .bit-tgb-md {
-    font-size: spacing(1.75);
     padding: spacing(0.75) spacing(2);
+    --bit-tgb-fontsize: #{spacing(1.75)};
+    --bit-tgb-ntx-pad: #{spacing(0.75)};
+    --bit-tgb-ntx-icn-size: #{spacing(2.35)};
 }
 
 .bit-tgb-lg {
-    font-size: spacing(2);
     padding: spacing(1) spacing(2.5);
+    --bit-tgb-fontsize: #{spacing(2)};
+    --bit-tgb-ntx-pad: #{spacing(1.0)};
+    --bit-tgb-ntx-icn-size: #{spacing(3.35)};
+}
+
+
+
+// important: these need to be here at the end!
+
+.bit-tgb-fxc {
+    color: var(--bit-tgb-clr-txt);
+}
+
+.bit-tgb-ntx {
+    padding: var(--bit-tgb-ntx-pad);
+    --bit-tgb-icn-margin: 0;
+    --bit-tgb-fontsize: var(--bit-tgb-ntx-icn-size);
 }