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/**

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* WordPress Menu Page Base Class

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abstract class NF_Abstracts_Menu

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{

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/**

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* (required) The text to be displayed in the title tags of the page when the menu is selected

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* @var string

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public $page_title = '';

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/**

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* (required) The on-screen name text for the menu

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* @var string

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public $menu_title = '';

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/**

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* (required) The capability required for this menu to be displayed to the user.

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* @var string

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public $capability = 'manage_options';

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/**

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* (required) The slug name to refer to this menu by (should be unique for this menu).

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* @var string

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public $menu_slug = '';

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/**

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* (optional) The function that displays the page content for the menu page.

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* @var string

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public $function = 'display';

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/**

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* (optional) The icon for this menu.

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* @var string

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public $icon_url = '';

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/**

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* (optional) The position in the menu order this menu should appear.

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* @var string

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public $position = NULL;

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/**

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* Constructor

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* Translate text and add the 'admin_menu' action.

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public function __construct()

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{

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add_action( 'admin_menu', array( $this, 'register' ) );

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}

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/**

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* Register the menu page.

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public function register()

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{

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add_menu_page(

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$this->get_page_title(),

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$this->get_menu_title(),

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apply_filters( 'ninja_forms_menu_' . $this->get_menu_slug() . '_capability', $this->get_capability() ),

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$this->menu_slug,

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array( $this, $this->function ),

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$this->icon_url,

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$this->position

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);

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}

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public function get_page_title()

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{

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return $this->page_title;

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}

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public function get_menu_title()

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{

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return ( $this->menu_title ) ? $this->menu_title : $this->get_page_title();

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}

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public function get_menu_slug()

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{

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return ( $this->menu_slug ) ? $this->menu_slug : 'nf-' . strtolower( preg_replace( '/[^A-Za-z0-9-]+/', '-', $this->get_menu_title() ) );

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}

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public function get_capability()

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{

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return $this->capability;

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}

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/**

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* Display the menu page.

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public abstract function display();

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}

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