Convert buy subview to new tab bar component

ui/app/components/buy-button-subview.js

@@ -7,6 +7,7 @@ const CoinbaseForm = require('./coinbase-form')
 const ShapeshiftForm = require('./shapeshift-form')
 const extension = require('../../../app/scripts/lib/extension')
 const Loading = require('./loading')
+const TabBar = require('./tab-bar')
 
 module.exports = connect(mapStateToProps)(BuyButtonSubview)
 
@@ -53,43 +54,53 @@ BuyButtonSubview.prototype.render = function () {
 
       h(Loading, { isLoading }),
 
-      h('h3.flex-row.text-transform-uppercase', {
+      h(TabBar, {
-        style: {
+        tabs: [
-          background: '#EBEBEB',
+          {
-          color: '#AEAEAE',
+            content: [
-          paddingTop: '4px',
+              'Coinbase',
-          justifyContent: 'space-around',
-        },
-      }, [
-        h(currentForm.coinbase ? '.activeForm' : '.inactiveForm.pointer', {
-          onClick: () => props.dispatch(actions.coinBaseSubview()),
-        }, 'Coinbase'),
               h('a', {
                 onClick: (event) => this.navigateTo('https://github.com/MetaMask/faq/blob/master/COINBASE.md'),
               }, [
                 h('i.fa.fa-question-circle', {
                   style: {
-              position: 'relative',
+                    margin: '0px 5px',
-              right: '33px',
                   },
                 }),
               ]),
-        h(currentForm.shapeshift ? '.activeForm' : '.inactiveForm.pointer', {
+            ],
-          onClick: () => props.dispatch(actions.shapeShiftSubview(props.provider.type)),
+            key: 'coinbase'
-        }, 'Shapeshift'),
+          },
-
+          {
+            content: [
+              'Shapeshift',
               h('a', {
                 href: 'https://github.com/MetaMask/faq/blob/master/COINBASE.md',
                 onClick: (event) => this.navigateTo('https://info.shapeshift.io/about'),
               }, [
                 h('i.fa.fa-question-circle', {
                   style: {
-              position: 'relative',
+                    margin: '0px 5px',
-              right: '28px',
                   },
                 }),
-        ]),
+              ])
-      ]),
+            ],
+            key: 'shapeshift'
+          },
+        ],
+        defaultTab: 'coinbase',
+        tabSelected: (key) => {
+          switch (key) {
+            case 'coinbase':
+              props.dispatch(actions.coinBaseSubview())
+              break
+            case 'shapeshift':
+              props.dispatch(actions.shapeShiftSubview(props.provider.type))
+              break
+          }
+        }
+      }),
+
       this.formVersionSubview(),
     ])
   )