EasyGMaps.php

<?php 
/*
Plugin Name: Easy GMaps
Plugin URI: 
Description: Easily add an Google Map Embed to your Post.
Author: Emerson Carvalho < emersoncarvalho.com >
Version: 1.0
*/

//Admin Menu Page
//add_action('admin_menu', array('EasyGMaps', 'addMenuPage'));

//Register Metabox
add_action('add_meta_boxes', array('EasyGMaps', 'registerMetaBox') );
//Add javascript
add_action('wp_enqueue_scripts', array('EasyGMaps', 'loadScripts'));
add_action('admin_enqueue_scripts', array('EasyGMaps', 'loadScripts'));
//Register Shortcode
add_shortcode( 'easygmaps',  array('EasyGMaps', 'renderShortCode') );
//Ajax for Save Api Key
add_action('wp_ajax_saveEasyGMapsApiKey', array('EasyGMaps', 'saveEasyGMapsApiKey'));
add_action('wp_ajax_nopriv_saveEasyGMapsApiKey', array('EasyGMaps', 'saveEasyGMapsApiKey'));


Class EasyGMaps
{
    const name = 'Easy GMaps';
    const slug = 'easy-g-maps';
    
    protected $apiKey;
    
    protected $path; 
    protected $url;
    
    public function __construct()
    {
        $this->path   = plugin_dir_path(__FILE__);
        $this->url    = plugins_url('', __FILE__ ).'/';
        $this->apiKey = get_option(static::slug.'apikey');
    }
    
    public function controller()
    {
        echo $this->path . '<br/>';
        echo $this->url . '<br/>';
      //  echo    plugins_url( static::slug . '-icon.png' , __FILE__ );
    }
    
    public function registerMetaBox()
    {
       
        $functionCall = array(new EasyGMaps() , 'addEasyGMapsMetabox');
        $functionSave = array(new EasyGMaps() , 'saveEasyGMapsMetabox');
        $metaboxId = static::slug.'div';
        
        $custom_post_types = get_post_types();
        foreach ($custom_post_types as $type) {
            add_meta_box($metaboxId, static::name , $functionCall, $type, 'normal');
           
        }
        add_meta_box($metaboxId, static::name , $functionCall, 'page', 'normal');

        add_action('save_post', $functionSave);
   }

   
    public function addEasyGMapsMetabox()
    {
        require_once $this->path . 'form.php';
        
    }
    
    public function saveEasyGMapsApiKey()
    {
        $api_key = mysql_real_escape_string($_REQUEST[static::slug.'apikey']);
        update_option(static::slug.'apikey', $api_key);
        die();
    }
    
    public function loadScripts()
    {
        
        $egm = new EasyGMaps();
        
        if( empty($egm->apiKey) || is_null($egm->apiKey) ){
            $googleMapsJs = 'https://maps.google.com/maps/api/js?sensor=true';
        }else{
            $googleMapsJs = 'https://maps.google.com/maps/api/js?key='.$egm->apiKey.'&sensor=true';
        }
        
        wp_enqueue_script(
		'gmaps',
		$googleMapsJs
	);
        wp_enqueue_script(
		static::slug,
		$egm->url . static::slug . '.js',
		array('jquery')
	);
    }
    
    public function renderShortCode( $attr )
    {
        extract( shortcode_atts( array(
		'width' => null,
		'height'=> null,
            	'lat'   => null,
            	'lng'   => null,
            	'type'  => null,
                'zoom'  => null,
                'id'    => null
	), $attr ) );

        
        if($type == '1'){
          
            $html = '<style type="text/css">#'.$id.' img { max-width: none; }</style><!-- Some hack for Wordpress Twenty eleven, twelve theme -->';
            $html.= '<div style="width: '.$width.'; height:'.$width.';">';  
            $html.= '<div class="'.static::slug.'embed" style="width: '.$width.'; height:100%;" id="'.$id.'" data-id="'.$id.'" data-lat="'.$lat.'"  data-lng="'.$lng.'"  data-zoom="'.$zoom.'" >Loagind Easy G Maps</div>';
            $html.= '</div>';
            
            return $html;
   
        }else if($type == '2'){
            $staticMapUrl = 'http://maps.googleapis.com/maps/api/staticmap?center='.$lat.','.$lng.'&zoom='.$zoom.'&size='.$width.'x'.$height.'&maptype=roadmap&markers=color:red%7C'.$lat.','.$lng.'&sensor=false';

            return '<img src="'.$staticMapUrl.'" width="'.$width.'" height="'.$height.'" alt="Generated by EasyGMaps Plugin" id="'.$id.'" />';
        }
        
        
    }
    
}