fix(input-group): added warning border + box-shadow

Author: adrianptrv

projects/igniteui-angular/src/lib/core/styles/components/input/_input-group-component.scss

@@ -1000,6 +1000,36 @@
             }
         }
 
+        @include mx(bootstrap, warning) {
+          @include e(input) {
+              @extend %bootstrap-input--warning !optional;
+
+              &:hover {
+                  @extend %bootstrap-input--warning !optional;
+              }
+          }
+
+          @include e(file-input) {
+              @extend %bootstrap-input--warning !optional;
+
+              &:hover {
+                  @extend %bootstrap-input--warning !optional;
+              }
+          }
+
+          @include e(label) {
+              @extend %bootstrap-label !optional;
+          }
+
+          @include e(textarea) {
+              @extend %bootstrap-input--warning !optional;
+
+              &:hover {
+                  @extend %bootstrap-input--warning !optional;
+              }
+          }
+      }
+
         @include mx(bootstrap, textarea-group) {
             @include e(bundle) {
                 @extend %form-group-bundle-bootstrap--textarea !optional;

projects/igniteui-angular/src/lib/core/styles/components/input/_input-group-theme.scss

@@ -2232,6 +2232,18 @@
         }
     }
 
+    %bootstrap-input--warning {
+        border: rem(1px) solid var-get($theme, 'warning-secondary-color');
+
+        &:focus {
+            box-shadow: 0 0 0 rem(4px) color($color: 'warn', $variant: 500, $opacity: 0.38);
+
+            + %bootstrap-file-input {
+                box-shadow: 0 0 0 rem(4px) color($color: 'warn', $variant: 500, $opacity: 0.38);
+            }
+        }
+    }
+
     %bootstrap-input--disabled {
         background: var-get($theme, 'border-disabled-background');
         border: rem(1px) solid var-get($theme, 'disabled-border-color');