Vulcan/packages/base-components/lib/common/NewPostButton.jsx

import React, { PropTypes, Component } from 'react';
import { Button } from 'react-bootstrap';

import Core from "meteor/nova:core";
const Messages = Core.Messages;

import ReactForms from "meteor/utilities:react-form-containers";
const NewDocument = ReactForms.NewDocument;

const NewPostButton = (props, context) => {

  ({ModalTrigger, CanCreatePost} = Telescope.components);

  return (
    <ModalTrigger component={<Button bsStyle="primary">New Post</Button>}>
      <CanCreatePost user={context.currentUser}>
        <h3 className="modal-form-title">New Post</h3>
        <NewDocument 
          collection={Posts} 
          currentUser={context.currentUser}
          methodName="posts.new"
          successCallback={(post)=>{
            Messages.flash("Post created.", "success");
            Router.go('posts.single', post);
          }}
        />
      </CanCreatePost>
    </ModalTrigger>
  )
}

NewPostButton.contextTypes = {
  currentUser: React.PropTypes.object
};

module.exports = NewPostButton;
export default NewPostButton;