first commit

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/BuildDirector/LegacyBuildDirector.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\BuildDirector;
+
+use FcfVendor\WPDesk\PluginBuilder\Builder\AbstractBuilder;
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+use FcfVendor\WPDesk\PluginBuilder\Storage\StorageFactory;
+class LegacyBuildDirector
+{
+    /** @var AbstractBuilder */
+    private $builder;
+    public function __construct(\FcfVendor\WPDesk\PluginBuilder\Builder\AbstractBuilder $builder)
+    {
+        $this->builder = $builder;
+    }
+    /**
+     * Builds plugin
+     */
+    public function build_plugin()
+    {
+        $this->builder->build_plugin();
+        $this->builder->init_plugin();
+        $storage = new \FcfVendor\WPDesk\PluginBuilder\Storage\StorageFactory();
+        $this->builder->store_plugin($storage->create_storage());
+    }
+    /**
+     * Returns built plugin
+     *
+     * @return AbstractPlugin
+     */
+    public function get_plugin()
+    {
+        return $this->builder->get_plugin();
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Builder/AbstractBuilder.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Builder;
+
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+use FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage;
+abstract class AbstractBuilder
+{
+    /**
+     * Create plugin class
+     */
+    public function build_plugin()
+    {
+    }
+    /**
+     * Store plugin class in some kind of storage
+     */
+    public function store_plugin(\FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage $storage)
+    {
+    }
+    /**
+     * Init plugin internal structure
+     */
+    public function init_plugin()
+    {
+    }
+    /**
+     * Return built plugin
+     * @return AbstractPlugin
+     */
+    abstract function get_plugin();
+    /**
+     * Set settings class in plugin
+     *
+     * @param $settings
+     */
+    public function set_settings($settings)
+    {
+    }
+    /**
+     * Set view class in plugin
+     *
+     * @param $view
+     */
+    public function set_view($view)
+    {
+    }
+    /**
+     * Set tracker class in plugin
+     *
+     * @param $tracker
+     */
+    public function set_tracker($tracker)
+    {
+    }
+    /**
+     * Set helper class in plugin
+     *
+     * @param $helper
+     */
+    public function set_helper($helper)
+    {
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Builder/InfoActivationBuilder.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Builder;
+
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+use FcfVendor\WPDesk\PluginBuilder\Plugin\ActivationAware;
+use FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage;
+/**
+ * Builder that have info about activations
+ *
+ * Warning: We can't extend InfoBuilder.php as some old plugins(without wp-flow) will load the old version od InfoBuilder class that have private plugin property.
+ *
+ * @package WPDesk\PluginBuilder\Builder
+ */
+class InfoActivationBuilder extends \FcfVendor\WPDesk\PluginBuilder\Builder\AbstractBuilder
+{
+    const FILTER_PLUGIN_CLASS = 'wp_builder_plugin_class';
+    const HOOK_BEFORE_PLUGIN_INIT = 'wp_builder_before_plugin_init';
+    const HOOK_AFTER_PLUGIN_INIT = 'wp_builder_before_init';
+    /** @var AbstractPlugin */
+    private $plugin;
+    /** @var \WPDesk_Buildable */
+    private $info;
+    /** @var string */
+    protected $storage_id;
+    /**
+     * @var bool
+     */
+    private $is_active;
+    /**
+     * @param \WPDesk_Buildable $info
+     * @param bool $is_active
+     */
+    public function __construct(\FcfVendor\WPDesk_Buildable $info, $is_active)
+    {
+        $this->info = $info;
+        $this->storage_id = $info->get_class_name();
+        $this->is_active = $is_active;
+    }
+    /**
+     * Builds instance of plugin
+     */
+    public function build_plugin()
+    {
+        $class_name = \apply_filters(self::FILTER_PLUGIN_CLASS, $this->info->get_class_name());
+        /** @var AbstractPlugin $plugin */
+        $this->plugin = new $class_name($this->info);
+        if ($this->plugin instanceof \FcfVendor\WPDesk\PluginBuilder\Plugin\ActivationAware && $this->is_active) {
+            $this->plugin->set_active();
+        }
+        return $this->plugin;
+    }
+    public function store_plugin(\FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage $storage)
+    {
+        $storage->add_to_storage($this->storage_id, $this->plugin);
+    }
+    public function init_plugin()
+    {
+        \do_action(self::HOOK_BEFORE_PLUGIN_INIT, $this->plugin);
+        $this->plugin->init();
+        \do_action(self::HOOK_AFTER_PLUGIN_INIT, $this->plugin);
+    }
+    /**
+     * @return AbstractPlugin
+     */
+    public function get_plugin()
+    {
+        return $this->plugin;
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Builder/InfoBuilder.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Builder;
+
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+use FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage;
+/**
+ * @deprecated Should not be used as some old plugins are using it and we can't touch this.
+ *
+ * @package WPDesk\PluginBuilder\Builder
+ */
+class InfoBuilder extends \FcfVendor\WPDesk\PluginBuilder\Builder\AbstractBuilder
+{
+    const FILTER_PLUGIN_CLASS = 'wp_builder_plugin_class';
+    const HOOK_BEFORE_PLUGIN_INIT = 'wp_builder_before_plugin_init';
+    const HOOK_AFTER_PLUGIN_INIT = 'wp_builder_before_init';
+    /** @var AbstractPlugin */
+    private $plugin;
+    /** @var \WPDesk_Buildable */
+    private $info;
+    /** @var string */
+    protected $storage_id;
+    public function __construct(\FcfVendor\WPDesk_Buildable $info)
+    {
+        $this->info = $info;
+        $this->storage_id = $info->get_class_name();
+    }
+    /**
+     * Builds instance of plugin
+     */
+    public function build_plugin()
+    {
+        $class_name = \apply_filters(self::FILTER_PLUGIN_CLASS, $this->info->get_class_name());
+        /** @var AbstractPlugin $plugin */
+        $this->plugin = new $class_name($this->info);
+    }
+    public function store_plugin(\FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage $storage)
+    {
+        $storage->add_to_storage($this->storage_id, $this->plugin);
+    }
+    public function init_plugin()
+    {
+        \do_action(self::HOOK_BEFORE_PLUGIN_INIT, $this->plugin);
+        $this->plugin->init();
+        \do_action(self::HOOK_AFTER_PLUGIN_INIT, $this->plugin);
+    }
+    /**
+     * @return AbstractPlugin
+     */
+    public function get_plugin()
+    {
+        return $this->plugin;
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/AbstractPlugin.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * Base plugin with most basic functionalities used by every WPDesk plugin.
+ *
+ *
+ * Known issues:
+ *
+ * The class name is too generic but can't be changed as it would introduce a major incompatibility for most of the plugins.
+ * The $plugin_url, $docs_url and most other fields should be removed as they only litter the place but for compatibility reasons we can't do it right now.
+ * Hook methods should be moved to external classes but for compatibility reasons we can't do it right now.
+ */
+abstract class AbstractPlugin extends \FcfVendor\WPDesk\PluginBuilder\Plugin\SlimPlugin
+{
+    /**
+     * Most info about plugin internals.
+     *
+     * @var \WPDesk_Plugin_Info
+     */
+    protected $plugin_info;
+    /**
+     * Unique string for this plugin in [a-z_]+ format.
+     *
+     * @var string
+     */
+    protected $plugin_namespace;
+    /**
+     * Absolute URL to the plugin dir.
+     *
+     * @var string
+     */
+    protected $plugin_url;
+    /**
+     * Absolute URL to the plugin docs.
+     *
+     * @var string
+     */
+    protected $docs_url;
+    /**
+     * Absolute URL to the plugin settings url.
+     *
+     * @var string
+     */
+    protected $settings_url;
+    /**
+     * Support URL.
+     *
+     * @var string
+     */
+    protected $support_url;
+    /**
+     * AbstractPlugin constructor.
+     *
+     * @param \WPDesk_Plugin_Info $plugin_info
+     */
+    public function __construct($plugin_info)
+    {
+        $this->plugin_info = $plugin_info;
+        $this->plugin_namespace = \strtolower($plugin_info->get_plugin_dir());
+        $this->plugin_url = $this->plugin_info->get_plugin_url();
+        $this->init_base_variables();
+    }
+    /**
+     * Initialize internal state of the plugin.
+     *
+     * @return void
+     * @deprecated Just use __construct to initialize plugin internal state.
+     *
+     */
+    public function init_base_variables()
+    {
+    }
+    /**
+     * Initializes plugin external state.
+     *
+     * The plugin internal state is initialized in the constructor and the plugin should be internally consistent after creation.
+     * The external state includes hooks execution, communication with other plugins, integration with WC etc.
+     *
+     * @return void
+     */
+    public function init()
+    {
+        $this->hooks();
+    }
+    /**
+     * Returns absolute path to the plugin dir.
+     *
+     * @return string
+     */
+    public function get_plugin_file_path()
+    {
+        return $this->plugin_info->get_plugin_file_name();
+    }
+    /**
+     * Returns plugin text domain.
+     *
+     * @return string
+     */
+    public function get_text_domain()
+    {
+        return $this->plugin_info->get_text_domain();
+    }
+    /**
+     * Returns unique string for plugin in [a-z_]+ format. Can be used as plugin id in various places like plugin slug etc.
+     *
+     * @return string
+     */
+    public function get_namespace()
+    {
+        return $this->plugin_namespace;
+    }
+    /**
+     * Returns plugin absolute URL.
+     *
+     * @return string
+     */
+    public function get_plugin_url()
+    {
+        return \esc_url(\trailingslashit($this->plugin_url));
+    }
+    /**
+     * Returns plugin absolute URL to dir with front end assets.
+     *
+     * @return string
+     */
+    public function get_plugin_assets_url()
+    {
+        return \esc_url(\trailingslashit($this->get_plugin_url() . 'assets'));
+    }
+    /**
+     * @return $this
+     * @deprecated For backward compatibility.
+     *
+     */
+    public function get_plugin()
+    {
+        return $this;
+    }
+    /**
+     * Integrate with WordPress and with other plugins using action/filter system.
+     *
+     * @return void
+     */
+    protected function hooks()
+    {
+        \add_action('admin_enqueue_scripts', [$this, 'admin_enqueue_scripts']);
+        \add_action('wp_enqueue_scripts', [$this, 'wp_enqueue_scripts']);
+        \add_action('plugins_loaded', [$this, 'load_plugin_text_domain']);
+        \add_filter('plugin_action_links_' . \plugin_basename($this->get_plugin_file_path()), [$this, 'links_filter']);
+    }
+    /**
+     * Initialize plugin test domain. This is a hook function. Do not execute directly.
+     *
+     * @return void
+     */
+    public function load_plugin_text_domain()
+    {
+        \load_plugin_textdomain($this->get_text_domain(), \false, $this->get_namespace() . '/lang/');
+    }
+    /**
+     * Append JS scripts in the WordPress admin panel. This is a hook function. Do not execute directly.
+     *
+     * @return void
+     */
+    public function admin_enqueue_scripts()
+    {
+    }
+    /**
+     * Append JS scripts in WordPress. This is a hook function. Do not execute directly.
+     *
+     * @return void
+     */
+    public function wp_enqueue_scripts()
+    {
+    }
+    /**
+     * Initialize plugin admin links. This is a hook function. Do not execute directly.
+     *
+     * @param string[] $links
+     *
+     * @return string[]
+     */
+    public function links_filter($links)
+    {
+        $support_link = \get_locale() === 'pl_PL' ? 'https://www.wpdesk.pl/support/' : 'https://www.wpdesk.net/support';
+        if ($this->support_url) {
+            $support_link = $this->support_url;
+        }
+        $plugin_links = ['<a target="_blank" href="' . $support_link . '">' . \__('Support', $this->get_text_domain()) . '</a>'];
+        $links = \array_merge($plugin_links, $links);
+        if ($this->docs_url) {
+            $plugin_links = ['<a target="_blank" href="' . $this->docs_url . '">' . \__('Docs', $this->get_text_domain()) . '</a>'];
+            $links = \array_merge($plugin_links, $links);
+        }
+        if ($this->settings_url) {
+            $plugin_links = ['<a href="' . $this->settings_url . '">' . \__('Settings', $this->get_text_domain()) . '</a>'];
+            $links = \array_merge($plugin_links, $links);
+        }
+        return $links;
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/Activateable.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * Tag the plugin with this ingterface to hook it to the WordPress activation hook.
+ *
+ * Note: works from plugin flow ^2.2.
+ *
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+interface Activateable
+{
+    /**
+     * Plugin activated in WordPress. Do not execute directly.
+     *
+     * @return void
+     */
+    public function activate();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/ActivationAware.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * It means that this class is should know about SUBSCRIPTION activation
+ *
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+interface ActivationAware
+{
+    /**
+     * Set the activation flag to true
+     *
+     * @return void
+     */
+    public function set_active();
+    /**
+     * Is subscription active?
+     *
+     * @return bool
+     */
+    public function is_active();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/ActivationTracker.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * @deprecated nobody uses it :) And also this library is not a place for this class
+ *
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+class ActivationTracker
+{
+    /**
+     * Namespace.
+     *
+     * @var string
+     */
+    private $namespace;
+    /**
+     * ActivationTracker constructor.
+     *
+     * @param string $namespace Namespace for settings.
+     */
+    public function __construct($namespace)
+    {
+        $this->namespace = $namespace;
+    }
+    /**
+     * Option name for date storage
+     *
+     * @return string
+     */
+    private function get_option_name_activation_date()
+    {
+        return $this->namespace . '_activation';
+    }
+    /**
+     * Returns activation date and sets it if were not set before
+     *
+     * @return int unix timestamp for activation datetime
+     */
+    public function get_activation_date()
+    {
+        $activation_date = \get_option($this->get_option_name_activation_date());
+        if (empty($activation_date)) {
+            return $this->touch_activation_date();
+        }
+        return \intval($activation_date);
+    }
+    /**
+     * Was activation more than two weeks before today
+     *
+     * @return bool
+     */
+    public function is_activated_more_than_two_weeks()
+    {
+        $two_weeks = 60 * 60 * 24 * 7 * 2;
+        return $this->get_activation_date() + $two_weeks < \time();
+    }
+    /**
+     * Sets activatiion date for today
+     *
+     * @return int unit timestamp for now
+     */
+    public function touch_activation_date()
+    {
+        $now = \time();
+        \update_option($this->get_option_name_activation_date(), $now);
+        return $now;
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/Conditional.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * Something that can be instantiated/hooked conditionally.
+ *
+ * @see https://github.com/mwpd/basic-scaffold/blob/master/src/Infrastructure/Conditional.php by Alain Schlesser
+ *
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+interface Conditional
+{
+    /**
+     * Check whether the conditional object is currently needed.
+     *
+     * @return bool Whether the conditional object is needed.
+     */
+    public static function is_needed();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/Deactivateable.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * Tag the plugin with this ingterface to hook it to the WordPress deactivation hook.
+ *
+ * Note: works from plugin flow ^2.2.
+ *
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+interface Deactivateable
+{
+    /**
+     * Plugin deactivate in WordPress. Do not execute directly.
+     *
+     * @return void
+     */
+    public function deactivate();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/Hookable.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+interface Hookable
+{
+    /**
+     * Init hooks (actions and filters).
+     *
+     * @return void
+     */
+    public function hooks();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/HookableCollection.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+interface HookableCollection extends \FcfVendor\WPDesk\PluginBuilder\Plugin\Hookable
+{
+    /**
+     * Add hookable object.
+     *
+     * @param Hookable|HookablePluginDependant $hookable_object Hookable object.
+     */
+    public function add_hookable(\FcfVendor\WPDesk\PluginBuilder\Plugin\Hookable $hookable_object);
+    /**
+     * Get hookable instance.
+     *
+     * @param string $class_name Class name.
+     *
+     * @return false|Hookable
+     */
+    public function get_hookable_instance_by_class_name($class_name);
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/HookableParent.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+trait HookableParent
+{
+    /**
+     * Hookable objects.
+     *
+     * @var array[Hookable]
+     */
+    private $hookable_objects = array();
+    /**
+     * Add hookable object.
+     *
+     * @param Hookable|HookablePluginDependant $hookable_object Hookable object.
+     */
+    public function add_hookable(\FcfVendor\WPDesk\PluginBuilder\Plugin\Hookable $hookable_object)
+    {
+        if ($hookable_object instanceof \FcfVendor\WPDesk\PluginBuilder\Plugin\HookablePluginDependant) {
+            $hookable_object->set_plugin($this);
+        }
+        $this->hookable_objects[] = $hookable_object;
+    }
+    /**
+     * Get hookable instance.
+     *
+     * @param string $class_name Class name.
+     *
+     * @return false|Hookable
+     */
+    public function get_hookable_instance_by_class_name($class_name)
+    {
+        foreach ($this->hookable_objects as $hookable_object) {
+            if ($hookable_object instanceof $class_name) {
+                return $hookable_object;
+            }
+        }
+        return \false;
+    }
+    /**
+     * Run hooks method on all hookable objects.
+     */
+    protected function hooks_on_hookable_objects()
+    {
+        /** @var Hookable $hookable_object $hookable_object */
+        foreach ($this->hookable_objects as $hookable_object) {
+            if ($hookable_object instanceof \FcfVendor\WPDesk\PluginBuilder\Plugin\Conditional) {
+                if ($hookable_object::is_needed()) {
+                    $hookable_object->hooks();
+                }
+            } else {
+                $hookable_object->hooks();
+            }
+        }
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/HookablePluginDependant.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+interface HookablePluginDependant extends \FcfVendor\WPDesk\PluginBuilder\Plugin\Hookable
+{
+    /**
+     * Set Plugin.
+     *
+     * @param AbstractPlugin $plugin Plugin.
+     *
+     * @return null
+     */
+    public function set_plugin(\FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin $plugin);
+    /**
+     * Get plugin.
+     *
+     * @return AbstractPlugin.
+     */
+    public function get_plugin();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/PluginAccess.php

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+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+trait PluginAccess
+{
+    /**
+     * Plugin.
+     *
+     * @var AbstractPlugin
+     */
+    private $plugin;
+    /**
+     * Set plugin.
+     *
+     * @param AbstractPlugin $plugin Plugin.
+     */
+    public function set_plugin(\FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin $plugin)
+    {
+        $this->plugin = $plugin;
+    }
+    /**
+     * Get plugin.
+     *
+     * @return AbstractPlugin
+     */
+    public function get_plugin()
+    {
+        return $this->plugin;
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/SlimPlugin.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * Most clean plugin class with only most important details.
+ */
+abstract class SlimPlugin implements \FcfVendor\WPDesk_Translatable
+{
+    /**
+     * Initializes plugin external state.
+     *
+     * The plugin internal state is initialized in the constructor and the plugin should be internally consistent after creation.
+     * The external state includes hooks execution, communication with other plugins, integration with WC etc.
+     *
+     * @return void
+     */
+    public abstract function init();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/TemplateLoad.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Plugin;
+
+/**
+ * @deprecated Use wpdesk/wp-view
+ *
+ * @package WPDesk\PluginBuilder\Plugin
+ */
+trait TemplateLoad
+{
+    /**
+     * Plugin path.
+     *
+     * @var string
+     */
+    protected $plugin_path;
+    /**
+     * Template path.
+     *
+     * @var string
+     */
+    protected $template_path;
+    /**
+     * Init base variables for plugin
+     */
+    public function init_template_base_variables()
+    {
+        $this->plugin_path = $this->plugin_info->get_plugin_dir();
+        $this->template_path = $this->plugin_info->get_text_domain();
+    }
+    /**
+     * Renders end returns selected template
+     *
+     * @param string $name Name of the template.
+     * @param string $path Additional inner path to the template.
+     * @param array  $args args Accessible from template.
+     *
+     * @return string
+     */
+    public function load_template($name, $path = '', $args = array())
+    {
+        $plugin_template_path = \trailingslashit($this->plugin_path) . 'templates/';
+        // Look within passed path within the theme - this is priority.
+        $template = \locate_template(array(\trailingslashit($this->get_template_path()) . \trailingslashit($path) . $name . '.php'));
+        if (!$template) {
+            $template = $plugin_template_path . \trailingslashit($path) . $name . '.php';
+        }
+        \extract($args);
+        \ob_start();
+        include $template;
+        return \ob_get_clean();
+    }
+    /**
+     * Get template path.
+     *
+     * @return string
+     */
+    public function get_template_path()
+    {
+        return \trailingslashit($this->template_path);
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/WithoutNamespace/Buildable.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace FcfVendor;
+
+/**
+ * Have info about what class should be built by WPDesk_Builder
+ *
+ * have to be compatible with PHP 5.2.x
+ */
+interface WPDesk_Buildable
+{
+    /** @return string */
+    public function get_class_name();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/WithoutNamespace/Has_Plugin_Info.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace FcfVendor;
+
+if (!\interface_exists('FcfVendor\\WPDesk_Translatable')) {
+    require_once __DIR__ . '/Translatable.php';
+}
+/**
+ * Have MUST HAVE info for plugin instantion
+ *
+ * have to be compatible with PHP 5.2.x
+ */
+interface WPDesk_Has_Plugin_Info extends \FcfVendor\WPDesk_Translatable
+{
+    /**
+     * @return string
+     */
+    public function get_plugin_file_name();
+    /**
+     * @return string
+     */
+    public function get_plugin_dir();
+    /**
+     * @return string
+     */
+    public function get_version();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/WithoutNamespace/Plugin_Info.php

@@ -0,0 +1,165 @@
+<?php
+
+namespace FcfVendor;
+
+if (!\interface_exists('FcfVendor\\WPDesk_Translatable')) {
+    require_once __DIR__ . '/Translatable.php';
+}
+if (!\interface_exists('FcfVendor\\WPDesk_Buildable')) {
+    require_once __DIR__ . '/Buildable.php';
+}
+if (!\interface_exists('FcfVendor\\WPDesk_Has_Plugin_Info')) {
+    require_once __DIR__ . '/Has_Plugin_Info.php';
+}
+/**
+ * Structure with core info about plugin
+ *
+ * have to be compatible with PHP 5.2.x
+ */
+class WPDesk_Plugin_Info implements \FcfVendor\WPDesk_Translatable, \FcfVendor\WPDesk_Buildable, \FcfVendor\WPDesk_Has_Plugin_Info
+{
+    /** @var string */
+    private $plugin_file_name;
+    /** @var string */
+    private $plugin_dir;
+    /** @var string */
+    private $plugin_url;
+    /** @var string */
+    private $class_name;
+    /** @var string */
+    private $version;
+    /** @var string */
+    private $product_id;
+    /** @var string */
+    private $plugin_name;
+    /** @var \DateTimeInterface */
+    private $release_date;
+    /** string */
+    private $text_domain;
+    /**
+     * @return string
+     */
+    public function get_plugin_file_name()
+    {
+        return $this->plugin_file_name;
+    }
+    /**
+     * @param string $plugin_name
+     */
+    public function set_plugin_file_name($plugin_name)
+    {
+        $this->plugin_file_name = $plugin_name;
+    }
+    /**
+     * @return string
+     */
+    public function get_plugin_dir()
+    {
+        return $this->plugin_dir;
+    }
+    /**
+     * @param string $plugin_dir
+     */
+    public function set_plugin_dir($plugin_dir)
+    {
+        $this->plugin_dir = $plugin_dir;
+    }
+    /**
+     * @return string
+     */
+    public function get_plugin_url()
+    {
+        return $this->plugin_url;
+    }
+    /**
+     * @param string $plugin_url
+     */
+    public function set_plugin_url($plugin_url)
+    {
+        $this->plugin_url = $plugin_url;
+    }
+    /**
+     * @return string
+     */
+    public function get_version()
+    {
+        return $this->version;
+    }
+    /**
+     * @param string $version
+     */
+    public function set_version($version)
+    {
+        $this->version = $version;
+    }
+    /**
+     * @return string
+     */
+    public function get_product_id()
+    {
+        return $this->product_id;
+    }
+    /**
+     * @param string $product_id
+     */
+    public function set_product_id($product_id)
+    {
+        $this->product_id = $product_id;
+    }
+    /**
+     * @return string
+     */
+    public function get_plugin_name()
+    {
+        return $this->plugin_name;
+    }
+    /**
+     * @param string $plugin_name
+     */
+    public function set_plugin_name($plugin_name)
+    {
+        $this->plugin_name = $plugin_name;
+    }
+    /**
+     * @return DateTimeInterface
+     */
+    public function get_release_date()
+    {
+        return $this->release_date;
+    }
+    /**
+     * @param \DateTimeInterface $release_date
+     */
+    public function set_release_date($release_date)
+    {
+        $this->release_date = $release_date;
+    }
+    /**
+     * @return string
+     */
+    public function get_class_name()
+    {
+        return $this->class_name;
+    }
+    /**
+     * @param string $class_name
+     */
+    public function set_class_name($class_name)
+    {
+        $this->class_name = $class_name;
+    }
+    /**
+     * @return string
+     */
+    public function get_text_domain()
+    {
+        return $this->text_domain;
+    }
+    /**
+     * @param $value
+     */
+    public function set_text_domain($value)
+    {
+        $this->text_domain = $value;
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/WithoutNamespace/Translable.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace FcfVendor;
+
+/**
+ * @deprecated Have typo so better use WPDesk_Translatable
+ */
+interface WPDesk_Translable
+{
+    /** @return string */
+    public function get_text_domain();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Plugin/WithoutNamespace/Translatable.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace FcfVendor;
+
+if (!\interface_exists('FcfVendor\\WPDesk_Translable')) {
+    require_once 'Translable.php';
+}
+/**
+ * Have info about textdomain - how to translate texts
+ *
+ * have to be compatible with PHP 5.2.x
+ */
+interface WPDesk_Translatable extends \FcfVendor\WPDesk_Translable
+{
+    /** @return string */
+    public function get_text_domain();
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Storage/Exception/ClassAlreadyExists.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Storage\Exception;
+
+class ClassAlreadyExists extends \RuntimeException
+{
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Storage/Exception/ClassNotExists.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Storage\Exception;
+
+class ClassNotExists extends \RuntimeException
+{
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Storage/PluginStorage.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Storage;
+
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+interface PluginStorage
+{
+    /**
+     * @param string $class
+     * @param AbstractPlugin $object
+     */
+    public function add_to_storage($class, $object);
+    /**
+     * @param string $class
+     *
+     * @return AbstractPlugin
+     */
+    public function get_from_storage($class);
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Storage/StaticStorage.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Storage;
+
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+/**
+ * Can store plugin instances in static variable
+ *
+ * @package WPDesk\PluginBuilder\Storage
+ */
+class StaticStorage implements \FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage
+{
+    protected static $instances = [];
+    /**
+     * @param string $class
+     * @param AbstractPlugin $object
+     */
+    public function add_to_storage($class, $object)
+    {
+        if (isset(self::$instances[$class])) {
+            throw new \FcfVendor\WPDesk\PluginBuilder\Storage\Exception\ClassAlreadyExists("Class {$class} already exists");
+        }
+        self::$instances[$class] = $object;
+    }
+    /**
+     * @param string $class
+     *
+     * @return AbstractPlugin
+     */
+    public function get_from_storage($class)
+    {
+        if (isset(self::$instances[$class])) {
+            return self::$instances[$class];
+        }
+        throw new \FcfVendor\WPDesk\PluginBuilder\Storage\Exception\ClassNotExists("Class {$class} not exists in storage");
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Storage/StorageFactory.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Storage;
+
+class StorageFactory
+{
+    /**
+     * @return PluginStorage
+     */
+    public function create_storage()
+    {
+        return new \FcfVendor\WPDesk\PluginBuilder\Storage\WordpressFilterStorage();
+    }
+}

wp-content/plugins/flexible-checkout-fields/vendor_prefixed/wpdesk/wp-builder/src/Storage/WordpressFilterStorage.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace FcfVendor\WPDesk\PluginBuilder\Storage;
+
+use FcfVendor\WPDesk\PluginBuilder\Plugin\AbstractPlugin;
+/**
+ * Can store plugin instances in WordPress filter system.
+ *
+ * @package WPDesk\PluginBuilder\Storage
+ */
+class WordpressFilterStorage implements \FcfVendor\WPDesk\PluginBuilder\Storage\PluginStorage
+{
+    const STORAGE_FILTER_NAME = 'wpdesk_plugin_instances';
+    /**
+     * @param string $class
+     * @param AbstractPlugin $object
+     */
+    public function add_to_storage($class, $object)
+    {
+        \add_filter(self::STORAGE_FILTER_NAME, static function ($plugins) use($class, $object) {
+            if (isset($plugins[$class])) {
+                throw new \FcfVendor\WPDesk\PluginBuilder\Storage\Exception\ClassAlreadyExists("Class {$class} already exists");
+            }
+            $plugins[$class] = $object;
+            return $plugins;
+        });
+    }
+    /**
+     * @param string $class
+     *
+     * @return AbstractPlugin
+     */
+    public function get_from_storage($class)
+    {
+        $plugins = \apply_filters(self::STORAGE_FILTER_NAME, []);
+        if (isset($plugins[$class])) {
+            return $plugins[$class];
+        }
+        throw new \FcfVendor\WPDesk\PluginBuilder\Storage\Exception\ClassNotExists("Class {$class} not exists in storage");
+    }
+}