feat: add ability to have function as linkTo parameters (#23)

.storybook/stories.js

@@ -8,4 +8,17 @@ storiesOf('Button', module)
   ))
   .add('Second Story', () => (
     <button onClick={linkTo('Button', 'First Story')}>Go to "First Story"</button>
+  ))
+  .add('Multiple Selection', () => (
+    <MultipleStories onClick={linkTo('Button', (filter) => {
+      return filter === 'First' ? 'First Story' : 'Second Story';
+    })}/> 
   ));
+
+const MultipleStories = ({onClick}) => {
+  return (
+  <ul>
+    <button onClick={onClick.bind(null, 'First')}>Go to "First Story"</button>
+    <button onClick={onClick.bind(null, 'Second')}>Go to "Second Story"</button>
+  </ul>);
+}

dist/preview.js

@@ -15,7 +15,11 @@ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { de
 
 function linkTo(kind, story) {
   return function () {
+    var resolvedKind = typeof kind === 'function' ? kind.apply(undefined, arguments) : kind;
+    var resolvedStory = typeof story === 'function' ? story.apply(undefined, arguments) : story;
+
     var channel = _storybookAddons2.default.getChannel();
-    channel.emit(_.EVENT_ID, { kind: kind, story: story });
+    console.log(resolvedKind);
+    channel.emit(_.EVENT_ID, { kind: resolvedKind, story: resolvedStory });
   };
 }

src/preview.js

@@ -2,8 +2,11 @@ import addons from '@kadira/storybook-addons';
 import { EVENT_ID } from './';
 
 export function linkTo(kind, story) {
-  return function () {
+  return function (...args) {
+    const resolvedKind = typeof kind === 'function' ? kind(...args) : kind;
+    const resolvedStory = typeof story === 'function' ? story(...args) : story;
+
     const channel = addons.getChannel();
-    channel.emit(EVENT_ID, {kind, story});
+    channel.emit(EVENT_ID, {kind: resolvedKind, story: resolvedStory});
   };
 }