WP TinyMCE Shortcode Button Plugin

tinymce-shortcodes-button.js

(function() {
    tinymce.PluginManager.add('oo_tmce_button', function( editor, url ) {
        editor.addButton( 'oo_tmce_button', {
            title: 'Shortcodes',
            type: 'menubutton',
            icon: 'wp_code',
            menu: [
                {
                    text: 'Button',
					onclick: function() {
					    editor.windowManager.open( {
					        title: 'Button parameters',
					        body: [{
					            type: 'textbox',
					            name: 'text',
					            label: 'Button text'
					        },
					        {
					            type: 'textbox',
					            name: 'url',
					            label: 'URL'
					        },
					        {
					            type: 'textbox', 
					            name: 'classes', 
					            label: 'Button classes separated with space'
					        }],
					        onsubmit: function( e ) {
					            editor.insertContent( '[button text="' + e.data.text + '" url="' + e.data.url + '" classes="' + e.data.classes + '"]');
					        }
					    });
					}
                }
           ]
        });
    });
})();

tinymce-shortcodes-button.php

<?php
/**
* Plugin Name: Shortcodes button
* Description: Adds a button for inserting shortcodes in visual editor
* Version: 1.0
* Author: Oskari Oksanen
* Author URI: http://oskarioksanen.fi/
*/

add_action('admin_head', 'oo_add_tmce_button');

function oo_add_tmce_button() {
    
    global $typenow;
    
    // check user permissions
    if ( !current_user_can('edit_posts') && !current_user_can('edit_pages') ) {
    	return;
    }
    
    // verify the post type
    if( ! in_array( $typenow, array( 'post', 'page', 'etapper', 'partners' ) ) )
        return;
    
    // check if WYSIWYG is enabled
    if ( get_user_option('rich_editing') == 'true') {
        add_filter('mce_external_plugins', 'oo_register_tmce_plugin');
        add_filter('mce_buttons', 'oo_register_tmce_button');
    }
}

function oo_register_tmce_plugin($plugin_array) {
    $plugin_array['oo_tmce_button'] = plugins_url( '/tinymce-shortcodes-button.js', __FILE__ );
    return $plugin_array;
}

function oo_register_tmce_button($buttons) {
   array_push($buttons, 'oo_tmce_button');
   return $buttons;
}

// Disable WordPress.org plugin update notifications (NOTE: Plugin needs to be activated!)
add_filter('site_transient_update_plugins', 'remove_update_notification');
function remove_update_notification($value) {
     unset($value->response[ plugin_basename(__FILE__) ]);
     return $value;
}