Mark article as active in summary

1 files changed, 38 insertions, 0 deletions

diff --git a/packages/gitbook-core/src/components/Link.js b/packages/gitbook-core/src/components/Link.js
new file mode 100644
index 0000000..2f909de
--- /dev/null
+++ b/packages/gitbook-core/src/components/Link.js
@@ -0,0 +1,38 @@
+const React = require('react');
+const SummaryArticleShape = require('../shapes/SummaryArticle');
+
+const Link = React.createClass({
+    propTypes: {
+        children: React.PropTypes.node,
+        href:     React.PropTypes.string,
+        to:       React.PropTypes.oneOfType([
+            React.PropTypes.string,
+            SummaryArticleShape
+        ])
+    },
+
+    getHref() {
+        const { to, href } = this.props;
+
+        if (href) {
+            return href;
+        }
+
+        if (typeof to === 'string') {
+            return to;
+        }
+
+        if (typeof to.ref === 'string') {
+            // TODO: normalize url
+            return to.ref;
+        }
+    },
+
+    render() {
+        const { children, ...props } = this.props;
+        const href = this.getHref();
+        return <a href={href} {...props}>{children}</a>;
+    }
+});
+
+module.exports = Link;