Merge pull request #979 from primer/radio-group

simurai · web-flow · commit 6fecbe289a65 · 2019-11-19T14:40:10.000+09:00
Add `.radio-group` component
diff --git a/docs/content/components/forms.md b/docs/content/components/forms.md
@@ -305,6 +305,23 @@ Content that is hidden by default should only be done so if it is non-essential
 </form>
 ```
 
+#### Radio group
+
+Radio groups are tab like controls. Their blue border gives extra emphasis to what is selected.
+
+```html live
+<form>
+  <div class="radio-group">
+    <input class="radio-input" id="option-a" type="radio" name="options">
+    <label class="radio-label" for="option-a">Option A</label>
+    <input class="radio-input" id="option-b" type="radio" name="options">
+    <label class="radio-label" for="option-b">Option B</label>
+    <input class="radio-input" id="option-c" type="radio" name="options">
+    <label class="radio-label" for="option-c">Option C</label>
+  </div>
+</form>
+```
+
 #### Input group
 
 Attached an input and button to one another.
diff --git a/src/forms/index.scss b/src/forms/index.scss
@@ -4,3 +4,4 @@
 @import "./form-group.scss";
 @import "./form-validation.scss";
 @import "./input-group.scss";
+@import "./radio-group.scss";
diff --git a/src/forms/radio-group.scss b/src/forms/radio-group.scss
@@ -0,0 +1,43 @@
+// Tab like radio group
+
+.radio-group {
+  @include clearfix;
+}
+
+.radio-label {
+  float: left;
+  // stylelint-disable-next-line primer/spacing
+  padding: 6px $spacer-3 6px ($spacer-3 + 12px + $spacer-2); // 12px is the size of the radio-input
+  // stylelint-disable-next-line primer/spacing
+  margin-left: -1px;
+  font-size: $body-font-size;
+  // stylelint-disable-next-line primer/typography
+  line-height: 20px; // Specifically not inherit our `<body>` default
+  color: $text-gray-dark;
+  cursor: pointer;
+  border: $border-width $border-style $border-gray-dark;
+
+  :checked + & {
+    position: relative;
+    z-index: 1;
+    border-color: $border-blue;
+  }
+
+  &:first-of-type {
+    margin-left: 0;
+    border-top-left-radius: $border-radius;
+    border-bottom-left-radius: $border-radius;
+  }
+
+  &:last-of-type {
+    border-top-right-radius: $border-radius;
+    border-bottom-right-radius: $border-radius;
+  }
+}
+
+.radio-input {
+  z-index: 3;
+  float: left;
+  // stylelint-disable-next-line primer/spacing
+  margin: 10px (-$spacer-5) 0 $spacer-3;
+}
