first commit

wp-content/plugins/mailchimp-for-wp/integrations/wp-comment-form/class-comment-form.php

@@ -0,0 +1,121 @@
+<?php
+
+defined('ABSPATH') or exit;
+
+/**
+ * Class MC4WP_Comment_Form_Integration
+ *
+ * @ignore
+ */
+class MC4WP_Comment_Form_Integration extends MC4WP_Integration
+{
+    /**
+     * @var bool
+     */
+    protected $added_through_filter = false;
+
+    /**
+     * @var string
+     */
+    public $name = 'Comment Form';
+
+    /**
+     * @var string
+     */
+    public $description = 'Subscribes people from your WordPress comment form.';
+
+    /**
+     * Add hooks
+     */
+    public function add_hooks()
+    {
+        if (! $this->options['implicit']) {
+            // hooks for outputting the checkbox
+            add_filter('comment_form_submit_field', array( $this, 'add_checkbox_before_submit_button' ), 90);
+
+            add_action('thesis_hook_after_comment_box', array( $this, 'maybe_output_checkbox' ), 90);
+            add_action('comment_form', array( $this, 'maybe_output_checkbox' ), 90);
+        }
+
+        // hooks for checking if we should subscribe the commenter
+        add_action('comment_post', array( $this, 'subscribe_from_comment' ), 40, 2);
+    }
+
+    /**
+     * This adds the checkbox just before the submit button and sets a flag to prevent it from outputting twice
+     *
+     * @param $submit_button_html
+     *
+     * @return string
+     */
+    public function add_checkbox_before_submit_button($submit_button_html)
+    {
+        $this->added_through_filter = true;
+        return $this->get_checkbox_html() . $submit_button_html;
+    }
+
+    /**
+     * Output fallback
+     * Will output the checkbox if comment_form() function does not use `comment_form_submit_field` filter yet.
+     */
+    public function maybe_output_checkbox()
+    {
+        if (! $this->added_through_filter) {
+            $this->output_checkbox();
+        }
+    }
+
+    /**
+     * Grabs data from WP Comment Form
+     *
+     * @param int    $comment_id
+     * @param string $comment_approved
+     *
+     * @return bool|string
+     */
+    public function subscribe_from_comment($comment_id, $comment_approved = '')
+    {
+
+        // was sign-up checkbox checked?
+        if (! $this->triggered()) {
+            return false;
+        }
+
+        // is this a spam comment?
+        if ($comment_approved === 'spam') {
+            return false;
+        }
+
+        $comment = get_comment($comment_id);
+
+        $data = array(
+            'EMAIL'    => $comment->comment_author_email,
+            'NAME'     => $comment->comment_author,
+            'OPTIN_IP' => $comment->comment_author_IP,
+        );
+
+        return $this->subscribe($data, $comment_id);
+    }
+
+    /**
+     * @return bool
+     */
+    public function is_installed()
+    {
+        return true;
+    }
+
+    /**
+     * {@inheritdoc }
+     */
+    public function get_object_link($object_id)
+    {
+        $comment = get_comment($object_id);
+
+        if (! $comment) {
+            return '';
+        }
+
+        return sprintf('<a href="%s">Comment #%d</a>', get_edit_comment_link($object_id), $object_id);
+    }
+}