feat(joyent-ui-toolkit): implement Breadcrumb

packages/ui-toolkit/src/breadcrumb/index.js

@@ -0,0 +1,13 @@
+import React from 'react';
+import { Row } from 'react-styled-flexboxgrid';
+
+/**
+ * @example ./usage.md
+ */
+export default ({ children, ...rest }) => (
+  <Row name="breadcrum" {...rest}>
+    {children}
+  </Row>
+);
+
+export { default as Item } from './item';

packages/ui-toolkit/src/breadcrumb/item.js

@@ -0,0 +1,31 @@
+import React from 'react';
+import styled from 'styled-components';
+import remcalc from 'remcalc';
+
+import typography from '../typography';
+import { H2 } from '../text/headings';
+
+const Name = H2.extend`
+  ${typography.normal};
+  color: ${props => props.theme.primary};
+  margin: ${remcalc(20)} 0 ${remcalc(18)} 0;
+  display: inline-block;
+`;
+
+const Arrow = styled.div`
+  border: solid ${props => props.theme.text};
+  border-width: 0 ${remcalc(2)} ${remcalc(2)} 0;
+  display: inline-block;
+  padding: ${remcalc(2)};
+  transform: rotate(-45deg);
+  margin: ${remcalc(3)} ${remcalc(10)} ${remcalc(3)} ${remcalc(10)};
+`;
+
+export default ({ children, ...rest }) => (
+  <div>
+    <Name name="breadcrum-item" {...rest}>
+      {children}
+    </Name>
+    <Arrow />
+  </div>
+);

packages/ui-toolkit/src/breadcrumb/usage.md

@@ -0,0 +1,11 @@
+```
+const Breadcrumb = require('./index.js').default;
+const Item = require('./item.js').default;
+
+<Breadcrumb>
+  <Item>Home</Item>
+  <Item>Warp Records Blog</Item>
+  <Item>Services</Item>
+  <Item>Nginx</Item>
+</Breadcrumb>
+```

packages/ui-toolkit/src/index.js

@@ -2,6 +2,7 @@ export { default as Anchor } from './anchor';
 export { default as Base, global } from './base';
 export { default as Baseline } from './baseline';
 export { default as Button } from './button';
+export { default as Breadcrumb, Item as BreadcrumbItem } from './breadcrumb';
 export { default as calc } from './calc';
 export { default as Label } from './label';
 export { Ul, Li } from './list';

packages/ui-toolkit/styleguide.config.js

@@ -54,6 +54,7 @@ module.exports = {
       components: () => [
         'src/anchor/index.js',
         'src/button/index.js',
+        'src/breadcrumb/index.js',
         'src/card/card.js',
         'src/form/input.js',
         'src/form/number-input.js',