Adds the option to show calendar links when mounted (#15)

docs/ReactAddToCalendar.md

@@ -77,3 +77,6 @@ defaultValue: `[
 type: `string`
 defaultValue: `'react-add-to-calendar'`
 
+### `optionsOpen`
+type: `bool`
+defaultValue: `false`

src/ReactAddToCalendar.js

@@ -9,7 +9,7 @@ export default class ReactAddToCalendar extends React.Component {
     super(props);
 
     this.state = {
-      optionsOpen: false,
+      optionsOpen: props.optionsOpen || false,
       isCrappyIE: false
     };
 
@@ -196,6 +196,7 @@ ReactAddToCalendar.propTypes = {
   buttonTemplate: PropTypes.object,
   buttonWrapperClass: PropTypes.string,
   displayItemIcons: PropTypes.bool,
+  optionsOpen: PropTypes.bool,
   dropdownClass: PropTypes.string,
   event: PropTypes.shape({
     title: PropTypes.string,
@@ -215,6 +216,7 @@ ReactAddToCalendar.defaultProps = {
   buttonTemplate: { caret: "right" },
   buttonWrapperClass: "react-add-to-calendar__wrapper",
   displayItemIcons: true,
+  optionsOpen: false,
   dropdownClass: "react-add-to-calendar__dropdown",
   event: {
     title: "Sample Event",

test/add-to-calendar_test.js

@@ -25,6 +25,24 @@ describe("AddToCalendar", () => {
     expect(dropdown).to.exist;
   });
 
+  it("should show the options menu if optionsOpen is true", () => {
+    var event = {
+      title: "Sample Event",
+      description: "This is the sample event provided as an example only",
+      location: "Portland, OR",
+      startTime: "2016-09-16T20:15:00-04:00",
+      endTime: "2016-09-16T21:45:00-04:00"
+    };
+    var addToCalendar = TestUtils.renderIntoDocument(
+      <AddToCalendar event={event} optionsOpen />
+    );
+    var dropdown = TestUtils.findRenderedDOMComponentWithClass(
+      addToCalendar,
+      "react-add-to-calendar__dropdown"
+    );
+    expect(dropdown).to.exist;
+  });
+
   it("should mount and unmount properly", done => {
     var TestComponent = createReactClass({
       displayName: "TestComponent",