<?
class SV_WC_Donation extends WC_Cart
{

    public function __construct()
    {

        $this->shatner_label = get_option('shatner_label', "Name your own price");

        add_action('wp_enqueue_scripts', function () {
            wp_enqueue_script('shatner', plugins_url('/shatner.js',__FILE__), array('jquery') );
        });

        if ( is_admin() ){ // admin actions
          $this->init_form_fields();
          add_action( 'admin_menu', array($this, 'add_shatner_menu' ));
          add_action( 'admin_init', array($this, 'admin_init' ));
          add_action('woocommerce_before_calculate_totals',  array($this,  'add_custom_price' ));
          add_action('woocommerce_product_options_pricing',  array($this,  'add_donation_radio'));
          add_action('save_post',                            array($this,  'set_named_price'));
        } else {

            if(get_option('use_shatner_templates', 1 ) == 1)
            {
                add_filter('woocommerce_locate_template',       array($this, 'template_override'),10,3);
                add_filter('woocommerce_loop_add_to_cart_link', array($this, 'remove_link'),10);
            }


            add_action('woocommerce_product_options_pricing',  array($this,  'add_donation_radio'));
            add_action('save_post',                            array($this,  'set_named_price'));
            add_action('woocommerce_add_to_cart',              array($this,  'add_to_cart_hook'));
            add_action('woocommerce_before_calculate_totals',  array($this,  'add_custom_price' ));
            add_action('init', array($this, 'init_css'));
        }
    }

    public function remove_link($link)
    {
        global $post;
        $post = get_post_meta($post->ID, '_own_price', true);

        if ($post === 'yes')
            return '';

        return $link;


    }

    public function add_shatner_menu()
    {
        add_options_page(
            'Shatner Plugin Settings', 
            'Shatner Settings', 
            'manage_options', 
            'shatner_plugin', 
            array($this, 'shatner_plugin_settings_page')
        );
    }

    public function shatner_plugin_settings_page()
    {
        include(sprintf("%s/templates/settings.php", dirname(__FILE__))); 
    }


    /**
     * hook into WP's admin_init action hook
     */
    public function admin_init()
    {

        // add your settings section
        add_settings_section(
            'wp_plugin_template-section_shatner', 
            'Shatner Plugin Template Settings', 
            array($this, 'settings_section_shatner_plugin_template'), 
            'wp_plugin_template_shatner'
        );
        
        foreach($this->form_fields as $setting)
        {

            // register your plugin's settings
            register_setting('wp_plugin_template-group-shatner', $setting['title']);
            // add your setting's fields
            add_settings_field(
                $setting['title'], 
                $setting['description'],
                array(&$this, 'settings_field_input_'. $setting['type']), 
                'wp_plugin_template_shatner', 
                'wp_plugin_template-section_shatner',
                array(
                    'field' => $setting['title']
                )
            );
        }
    } // END public static function activate

    public function init_form_fields()
    {
        $this->form_fields = array(
            array(
                'type'        => 'text',
                'title'       => esc_html__('shatner_label', 'woothemes'),
                'description' => esc_html__('Shatner Label', 'woothemes'),
                'default'     => esc_html__('Name your own price', 'woothemes')
            ),
            array(
                'type'        => 'radio_button',
                'title'       => esc_html__('use_shatner_templates', 'woothemes'),
                'description' => esc_html__('Shatner Templates override pricing, disable if you want to customize using your theme', 'woothemes'),
                'default'     => esc_html__('1', 'woothemes')
            )
        );
     }
    
    public function settings_section_shatner_plugin_template()
    {
        // Think of this as help text for the section.
        echo 'These settings set values for Shatner';
    }
    
    /**
     * This function provides text inputs for settings fields
     */
    public function settings_field_input_text($args)
    {
        // Get the field name from the $args array
        $field = $args['field'];
        // Get the value of this setting
        $value = get_option($field);
        // echo a proper input type="text"
        echo sprintf('<input type="text" name="%s" id="%s" value="%s" />', $field, $field, $value);
    } // END public function settings_field_input_text($args)


    /**
     * This function provides text inputs for settings fields
     */
    public function settings_field_input_radio_button($args)
    {

        // Get the field name from the $args array
        $field = $args['field'];
        // Get the value of this setting
        $value = get_option($field);
        
        $html = '<input type="radio" id="'.$field.'_1" name="'.$field.'" value="1"' . checked( 1, $value, false ) . '/> ';
        $html .= ' <label for="'.$field.'_1">Enable</label> <br>';
        
        
        $html .= ' <input type="radio" id="'.$field.'_2" name="'.$field.'" value="2"' . checked( 2, $value, false ) . '/> ';
        $html .= ' <label for="'.$field.'_2">Disable</label>';
        
        echo $html;

    } // END public function settings_field_input_radio($args)





    public function template_override($template, $template_name, $template_path ) {
    // Modification: Get the template from this plugin, if it exists

    $plugin_path = untrailingslashit( plugin_dir_path( __FILE__ ) ). '/templates/';
    
    if ( file_exists( $plugin_path . $template_name ) )
    {
      $template = $plugin_path . $template_name;
      return $template;
    }

    return $template;

    }

    public function init_css()
    {
        wp_register_style('donation_css', plugins_url('custom_styles.css',__FILE__ ), false, '1.0.1', 'all');
        wp_enqueue_style( 'donation_css' );
    }

    public function add_to_cart_hook($key)
    {
        global $woocommerce;
        foreach ($woocommerce->cart->get_cart() as $cart_item_key => $values) 
        {

          
          if(!get_post_meta($values['product_id'], '_own_price', true ) || get_post_meta($values['product_id'], '_own_price', true ) === 'no')
          {
            $values['data']->set_price($_POST['price']);
            continue;
          }


           $thousands_sep  = wp_specialchars_decode( stripslashes( get_option( 'woocommerce_price_thousand_sep' ) ), ENT_QUOTES );
           $decimal_sep = stripslashes( get_option( 'woocommerce_price_decimal_sep' ) );
           $_POST['price'] = str_replace($thousands_sep, '', $_POST['price']);
           $_POST['price'] = str_replace($decimal_sep, '.', $_POST['price']);

           $_POST['price'] = wc_format_decimal($_POST['price']);


            if($cart_item_key == $key)
            {
                $values['data']->set_price($_POST['price']);
                $woocommerce->session->__set($key .'_named_price', $_POST['price']);
            }
        }

    return $key;
    }


    public function set_named_price($post)
    {
        if(isset($_POST['_own_price'])){
            if(!get_post_meta($_POST['post_ID'], '_own_price', true )){
                add_post_meta($_POST['post_ID'], '_own_price', $_POST['_own_price']);
            } else {
                update_post_meta($_POST['post_ID'], '_own_price', $_POST['_own_price']);
            }
        }
        if(isset($_POST['_own_price_enforce_minimum'])){
            if(!get_post_meta($_POST['post_ID'], '_own_price_enforce_minimum', true )){
                add_post_meta($_POST['post_ID'], '_own_price_enforce_minimum', $_POST['_own_price_enforce_minimum']);
            } else {
                update_post_meta($_POST['post_ID'], '_own_price_enforce_minimum', $_POST['_own_price_enforce_minimum']);
            }
        }
    }

    public function add_donation_radio($content)
    {
       global $post;
       woocommerce_wp_radio(array(
           'id' => '_own_price', 
           'class' => 'wc_own_price short', 
           'label' => esc_html__( 'Name your own price', 'woocommerce' ), 
           'options' => array(
                'yes' => 'Yes',
                'no' => 'No',
            )
          )
       );
       woocommerce_wp_radio(array(
           'id' => '_own_price_enforce_minimum', 
           'class' => 'wc_own_price_e short', 
           'label' => esc_html__( 'Enforce "Regular price" as the minimum price', 'woocommerce' ), 
           'options' => array(
                'yes' => 'Yes',
                'no' => 'No',
            )
          )
        );
    }


    public function add_custom_price( $cart_object ) {
        global $woocommerce;
        foreach ( $cart_object->cart_contents as $key => $value ) {

            if(!get_post_meta($value['product_id'], '_own_price', true ) || get_post_meta($value['product_id'], '_own_price', true ) === 'no')
            {
              continue;
            }

            $named_price = $woocommerce->session->__get($key .'_named_price');

            if($named_price)
            {
                $product = $value['data'];
                $product->set_price( $named_price );
            }
        }
    }

}
new SV_WC_Donation();
<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>Features &#8211; REACH Foundation</title>
	<atom:link href="https://reachfoundation.life/category/features/feed/" rel="self" type="application/rss+xml" />
	<link>https://reachfoundation.life</link>
	<description>Just another WordPress site</description>
	<lastBuildDate>Thu, 04 Sep 2014 14:15:35 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>
	hourly	</sy:updatePeriod>
	<sy:updateFrequency>
	1	</sy:updateFrequency>
	<generator>https://wordpress.org/?v=7.0</generator>
	<item>
		<title>No Sidebar</title>
		<link>https://reachfoundation.life/features/no-sidebar/</link>
					<comments>https://reachfoundation.life/features/no-sidebar/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Thu, 04 Sep 2014 14:15:35 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=89</guid>

					<description><![CDATA[Grassroots comes with three layout options for pages/posts: left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.]]></description>
										<content:encoded><![CDATA[<p>Grassroots comes with three layout options for pages/posts:  left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.</p>
<p>This page shows what it looks like to have no sidebar (full-width content).  You can set the same layout for all pages/posts in the theme options.  The setting can be overwritten on individual pages as you need to.</p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/no-sidebar/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>No Sidebar</title>
		<link>https://reachfoundation.life/features/no-sidebar/</link>
					<comments>https://reachfoundation.life/features/no-sidebar/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Thu, 04 Sep 2014 14:15:35 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=89</guid>

					<description><![CDATA[Grassroots comes with three layout options for pages/posts: left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.]]></description>
										<content:encoded><![CDATA[<p>Grassroots comes with three layout options for pages/posts:  left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.</p>
<p>This page shows what it looks like to have no sidebar (full-width content).  You can set the same layout for all pages/posts in the theme options.  The setting can be overwritten on individual pages as you need to.</p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/no-sidebar/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Right Hand Sidebar</title>
		<link>https://reachfoundation.life/features/right-hand-sidebar/</link>
					<comments>https://reachfoundation.life/features/right-hand-sidebar/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Thu, 04 Sep 2014 14:15:01 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=88</guid>

					<description><![CDATA[Grassroots comes with three layout options for pages/posts: left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.]]></description>
										<content:encoded><![CDATA[<p>Grassroots comes with three layout options for pages/posts:  left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.</p>
<p>This page shows what it looks like to have a sidebar on the right hand side.  You can set the same layout for all pages/posts in the theme options.  The setting can be overwritten on individual pages as you need to.</p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/right-hand-sidebar/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Left Hand Sidebar</title>
		<link>https://reachfoundation.life/features/left-hand-sidebar/</link>
					<comments>https://reachfoundation.life/features/left-hand-sidebar/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Thu, 04 Sep 2014 14:12:44 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=87</guid>

					<description><![CDATA[Grassroots comes with three layout options for pages/posts: left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.]]></description>
										<content:encoded><![CDATA[<p>Grassroots comes with three layout options for pages/posts:  left hand sidebar with right hand content, left hand content with right hand sidebar and a no sidebar, full width content layout.</p>
<p>This page shows what it looks like to have a sidebar on the left hand side.  You can set the same layout for all pages/posts in the theme options.  The setting can be overwritten on individual pages as you need to.</p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/left-hand-sidebar/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>A Post With Comments</title>
		<link>https://reachfoundation.life/features/a-post-with-comments/</link>
					<comments>https://reachfoundation.life/features/a-post-with-comments/#comments</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Wed, 03 Sep 2014 16:23:20 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=95</guid>

					<description><![CDATA[Donec id elit non mi porta gravida at eget metus. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Cras mattis consectetur purus sit amet fermentum. Integer posuere erat]]></description>
										<content:encoded><![CDATA[<p>Donec id elit non mi porta gravida at eget metus. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Cras mattis consectetur purus sit amet fermentum. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Vestibulum id ligula porta felis euismod semper. Nullam quis risus eget urna mollis ornare vel eu leo.</p>
<p>Maecenas faucibus mollis interdum. Donec id elit non mi porta gravida at eget metus. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Maecenas sed diam eget risus varius blandit sit amet non magna. </p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/a-post-with-comments/feed/</wfw:commentRss>
			<slash:comments>5</slash:comments>
		
		
			</item>
		<item>
		<title>A Post With Comments</title>
		<link>https://reachfoundation.life/features/a-post-with-comments/</link>
					<comments>https://reachfoundation.life/features/a-post-with-comments/#comments</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Wed, 03 Sep 2014 16:23:20 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=95</guid>

					<description><![CDATA[Donec id elit non mi porta gravida at eget metus. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Cras mattis consectetur purus sit amet fermentum. Integer posuere erat]]></description>
										<content:encoded><![CDATA[<p>Donec id elit non mi porta gravida at eget metus. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Cras mattis consectetur purus sit amet fermentum. Integer posuere erat a ante venenatis dapibus posuere velit aliquet. Vestibulum id ligula porta felis euismod semper. Nullam quis risus eget urna mollis ornare vel eu leo.</p>
<p>Maecenas faucibus mollis interdum. Donec id elit non mi porta gravida at eget metus. Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Maecenas sed diam eget risus varius blandit sit amet non magna. </p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/a-post-with-comments/feed/</wfw:commentRss>
			<slash:comments>5</slash:comments>
		
		
			</item>
		<item>
		<title>Type Samples</title>
		<link>https://reachfoundation.life/features/type-samples/</link>
					<comments>https://reachfoundation.life/features/type-samples/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Wed, 03 Sep 2014 16:05:06 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=94</guid>

					<description><![CDATA[This is a h1 tag This is a h2 tag This is a h3 tag This is a h4 tag This is a h5 tag This is a h6 tag]]></description>
										<content:encoded><![CDATA[<div class="lead">This section is called the lead.  It features a larger font-size and lighter font weight.  It&#8217;s a good way to create an introduction to your post/page.  You can add it by wrapping the text you&#8217;d like styled this way in the &#091;lead&#093; shortcode.</div>
<h1>This is a h1 tag</h1>
<h2>This is a h2 tag</h2>
<h3>This is a h3 tag</h3>
<h4>This is a h4 tag</h4>
<h5>This is a h5 tag</h5>
<h6>This is a h6 tag</h6>
<p>You can also add elements inside a paragraph.  This is text that&#8217;s <strong>bold.</strong>  Here is some <em>italicized</em> text to go along with it.  <a href="http://organizedthemes.com">Links</a> are great to have too.</p>
<blockquote><p>
Do or do not.  There is no try.<br />
<cite>Yoda</cite>
</p></blockquote>
<p>Lists are great too.  Here&#8217;s an ordered list (with numbers):</p>
<ol>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
</ol>
<p>Here is an unordered list:</p>
<ul>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
</ul>
<p>Fantastic.  </p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/type-samples/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
		<item>
		<title>Type Samples</title>
		<link>https://reachfoundation.life/features/type-samples-2/</link>
					<comments>https://reachfoundation.life/features/type-samples-2/#respond</comments>
		
		<dc:creator><![CDATA[admin]]></dc:creator>
		<pubDate>Wed, 03 Sep 2014 16:05:06 +0000</pubDate>
				<category><![CDATA[Features]]></category>
		<guid isPermaLink="false">http://demo.organizedthemes.com/grassroots/?p=94</guid>

					<description><![CDATA[This is a h1 tag This is a h2 tag This is a h3 tag This is a h4 tag This is a h5 tag This is a h6 tag]]></description>
										<content:encoded><![CDATA[<div class="lead">This section is called the lead.  It features a larger font-size and lighter font weight.  It&#8217;s a good way to create an introduction to your post/page.  You can add it by wrapping the text you&#8217;d like styled this way in the &#091;lead&#093; shortcode.</div>
<h1>This is a h1 tag</h1>
<h2>This is a h2 tag</h2>
<h3>This is a h3 tag</h3>
<h4>This is a h4 tag</h4>
<h5>This is a h5 tag</h5>
<h6>This is a h6 tag</h6>
<p>You can also add elements inside a paragraph.  This is text that&#8217;s <strong>bold.</strong>  Here is some <em>italicized</em> text to go along with it.  <a href="http://organizedthemes.com">Links</a> are great to have too.</p>
<blockquote><p>
Do or do not.  There is no try.<br />
<cite>Yoda</cite>
</p></blockquote>
<p>Lists are great too.  Here&#8217;s an ordered list (with numbers):</p>
<ol>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
</ol>
<p>Here is an unordered list:</p>
<ul>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
<li>List Item</li>
</ul>
<p>Fantastic.  </p>
]]></content:encoded>
					
					<wfw:commentRss>https://reachfoundation.life/features/type-samples-2/feed/</wfw:commentRss>
			<slash:comments>0</slash:comments>
		
		
			</item>
	</channel>
</rss>