private $defaultSettings = array(

'name' => '', // Name of the menu item

'title' => '', // Title displayed on the top of the admin panel

'parent' => null, // id of parent, if blank, then this is a top level menu

'id' => '', // Unique ID of the menu item

'capability' => 'manage_options', // User role

'icon' => 'dashicons-admin-generic', // Menu icon for top level menus only http://melchoyce.github.io/dashicons/

'position' => null, // Menu position. Can be used for both top and sub level menus

'use_form' => true, // If false, options will not be wrapped in a form

'desc' => '', // Description displayed below the title

);

public $settings;

public $options = array();

public $tabs = array();

public $owner;

public $panelID;

private $activeTab = null;

private static $idsUsed = array();

function __construct( $settings, $owner ) {

$this->owner = $owner;

if ( ! is_admin() ) {

return;

}

// If we are just initializing, do not create our admin panels yet. During this phase all we want is to get all the options to create

if ( TitanFramework::$initializing ) {

return;

}

$this->settings = array_merge( $this->defaultSettings, $settings );

// $this->options = $options;

if ( empty( $this->settings['name'] ) ) {

return;

}

if ( empty( $this->settings['title'] ) ) {

$this->settings['title'] = $this->settings['name'];

}

if ( empty( $this->settings['id'] ) ) {

$prefix = '';

if ( ! empty( $this->settings['parent'] ) ) {

$prefix = str_replace( ' ', '-', trim( strtolower( $this->settings['parent'] ) ) ) . '-';

}

$this->settings['id'] = $prefix . str_replace( ' ', '-', trim( strtolower( $this->settings['name'] ) ) );

$this->settings['id'] = str_replace( '&', '-', $this->settings['id'] );

}

// make sure all our IDs are unique

$suffix = '';

while ( in_array( $this->settings['id'] . $suffix, self::$idsUsed ) ) {

if ( $suffix === '' ) {

$suffix = 2;

} else {

$suffix ;

}

}

$this->settings['id'] .= $suffix;

// keep track of all IDs used

self::$idsUsed[] = $this->settings['id'];

$priority = -1;

if ( $this->settings['parent'] ) {

$priority = intval( $this->settings['position'] );

}

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

}

public function createAdminPanel( $settings ) {

$settings['parent'] = $this->settings['id'];

return $this->owner->createAdminPanel( $settings );

}

public function register() {

// Parent menu

if ( empty( $this->settings['parent'] ) ) {

$this->panelID = add_menu_page( $this->settings['name'],

$this->settings['name'],

$this->settings['capability'],

$this->settings['id'],

array( $this, 'createAdminPage' ),

$this->settings['icon'],

$this->settings['position'] );

// Sub menu

} else {

$this->panelID = add_submenu_page( $this->settings['parent'],

$this->settings['name'],

$this->settings['name'],

$this->settings['capability'],

$this->settings['id'],

array( $this, 'createAdminPage' ) );

}

add_action( 'load-' . $this->panelID, array( $this, 'saveOptions' ) );

add_action( 'load-' . $this->panelID, array( $this, 'addTitanCredit' ) );

}

public function addTitanCredit() {

add_filter( 'admin_footer_text', array( $this, 'addTitanCreditText' ) );

}

public function addTitanCreditText() {

echo __( "<em>Options Page Created with <a href='http://titanframework.net?utm_source=admin&utm_medium=admin footer'>Titan Framework</a></em>", TF_I18NDOMAIN );

}

public function getOptionNamespace() {

return $this->owner->optionNamespace;

}

public function saveOptions() {

if ( ! $this->verifySecurity() ) {

return;

}

$message = '';

/*

* Save

*/

if ( $_POST['action'] == 'save' ) {

// we are in a tab

$activeTab = $this->getActiveTab();

if ( ! empty( $activeTab ) ) {

foreach ( $activeTab->options as $option ) {

if ( empty( $option->settings['id'] ) ) {

continue;

}

if ( ! empty( $_POST[$this->getOptionNamespace() . '_' . $option->settings['id']] ) ) {

$value = $_POST[$this->getOptionNamespace() . '_' . $option->settings['id']];

} else {

$value = '';

}

// $value = $option->cleanValueForSaving( $value );

$this->owner->setOption( $option->settings['id'], $value );

}

}

foreach ( $this->options as $option ) {

if ( empty( $option->settings['id'] ) ) {

continue;

}

if ( ! empty( $_POST[$this->getOptionNamespace() . '_' . $option->settings['id']] ) ) {

$value = $_POST[$this->getOptionNamespace() . '_' . $option->settings['id']];

} else {

$value = '';

}

$this->owner->setOption( $option->settings['id'], $value );

}

// Hook 'tf_pre_save_options_{namespace}' - action pre-saving

do_action( 'tf_pre_save_options_' . $this->getOptionNamespace(), $this );

$this->owner->saveOptions();

$message = 'saved';

/*

* Reset

*/

} else if ( $_POST['action'] == 'reset' ) {

// we are in a tab

$activeTab = $this->getActiveTab();

if ( ! empty( $activeTab ) ) {

foreach ( $activeTab->options as $option ) {

if ( empty( $option->settings['id'] ) ) {

continue;

}

$this->owner->setOption( $option->settings['id'], $option->settings['default'] );

}

}

foreach ( $this->options as $option ) {

if ( empty( $option->settings['id'] ) ) {

continue;

}

$this->owner->setOption( $option->settings['id'], $option->settings['default'] );

}

// Hook 'tf_pre_reset_options_{namespace}' - action pre-saving

do_action( 'tf_pre_reset_options_' . $this->getOptionNamespace(), $this );

$this->owner->saveOptions();

$message = 'reset';

}

/*

* Redirect to prevent refresh saving

*/

// urlencode to allow special characters in the url

$url = wp_get_referer();

$activeTab = $this->getActiveTab();

$url = add_query_arg( 'page', urlencode( $this->settings['id'] ), $url );

if ( ! empty( $activeTab ) ) {

$url = add_query_arg( 'tab', urlencode( $activeTab->settings['id'] ), $url );

}

if ( ! empty( $message ) ) {

$url = add_query_arg( 'message', $message, $url );

}

do_action( 'tf_admin_options_saved_' . $this->getOptionNamespace() );

wp_redirect( $url );

}

private function verifySecurity() {

if ( empty( $_POST ) || empty( $_POST['action'] ) ) {

return false;

}

$screen = get_current_screen();

if ( $screen->id != $this->panelID ) {

return false;

}

if ( ! current_user_can( $this->settings['capability'] ) ) {

return false;

}

if ( ! check_admin_referer( $this->settings['id'], TF . '_nonce' ) ) {

return false;

}

return true;

}

public function getActiveTab() {

if ( ! count( $this->tabs ) ) {

return '';

}

if ( ! empty( $this->activeTab ) ) {

return $this->activeTab;

}

if ( empty( $_GET['tab'] ) ) {

$this->activeTab = $this->tabs[0];

return $this->activeTab;

}

foreach ( $this->tabs as $tab ) {

if ( $tab->settings['id'] == $_GET['tab'] ) {

$this->activeTab = $tab;

return $this->activeTab;

}

}

$this->activeTab = $this->tabs[0];

return $this->activeTab;

}

public function createAdminPage() {

do_action( 'tf_admin_page_before' );

do_action( 'tf_admin_page_before_' . $this->getOptionNamespace() );

?>

<div class="wrap">

<h2><?php echo $this->settings['title'] ?></h2>

<?php

if ( ! empty( $this->settings['desc'] ) ) {

?><p class='description'><?php echo $this->settings['desc'] ?></p><?php

}

?>

<div class='titan-framework-panel-wrap'>

<?php

do_action( 'tf_admin_page_start' );

do_action( 'tf_admin_page_start_' . $this->getOptionNamespace() );

if ( count( $this->tabs ) ):

?>

<h2 class="nav-tab-wrapper">

<?php

do_action( 'tf_admin_page_tab_start' );

do_action( 'tf_admin_page_tab_start_' . $this->getOptionNamespace() );

foreach ( $this->tabs as $tab ) {

$tab->displayTab();

}

do_action( 'tf_admin_page_tab_end' );

do_action( 'tf_admin_page_tab_end_' . $this->getOptionNamespace() );

?>

</h2>

<?php

endif;

?>

<div class='options-container'>

<?php

// Display notification if we did something

if ( ! empty( $_GET['message'] ) ) {

if ( $_GET['message'] == 'saved' ) {

echo TitanFrameworkAdminNotification::formNotification( __( 'Settings saved.', TF_I18NDOMAIN ), esc_html( $_GET['message'] ) );

} else if ( $_GET['message'] == 'reset' ) {

echo TitanFrameworkAdminNotification::formNotification( __( 'Settings reset to default.', TF_I18NDOMAIN ), esc_html( $_GET['message'] ) );

}

}

if ( $this->settings['use_form'] ):

?>

<form method='post'>

<?php

endif;

if ( $this->settings['use_form'] ) {

// security

wp_nonce_field( $this->settings['id'], TF . '_nonce' );

}

?>

<table class='form-table'>

<tbody>

<?php

do_action( 'tf_admin_page_table_start' );

do_action( 'tf_admin_page_table_start_' . $this->getOptionNamespace() );

$activeTab = $this->getActiveTab();

if ( ! empty( $activeTab ) ) {

if ( ! empty( $activeTab->settings['desc'] ) ) {

?><p class='description'><?php echo $activeTab->settings['desc'] ?></p><?php

}

$activeTab->displayOptions();

}

foreach ( $this->options as $option ) {

$option->display();

}

do_action( 'tf_admin_page_table_end' );

do_action( 'tf_admin_page_table_end_' . $this->getOptionNamespace() );

?>

</tbody>

</table>

<?php

if ( $this->settings['use_form'] ):

?>

</form>

<?php

endif;

// Reset form. We use JS to trigger a reset from other buttons within the main form

// This is used by class-option-save.php

if ( $this->settings['use_form'] ):

?>

<form method='post' id='tf-reset-form'>

<?php

// security

wp_nonce_field( $this->settings['id'], TF . '_nonce' );

?>

<input type='hidden' name='action' value='reset'/>

</form>

<?php

endif;

do_action( 'tf_admin_page_end' );

do_action( 'tf_admin_page_end_' . $this->getOptionNamespace() );

?>

<div class='options-container'>

</div>

</div>

</div>

</div>

<?php

do_action( 'tf_admin_page_after' );

do_action( 'tf_admin_page_after_' . $this->getOptionNamespace() );

}

public function createTab( $settings ) {

$obj = new TitanFrameworkAdminTab( $settings, $this );

$this->tabs[] = $obj;

return $obj;

}

public function createOption( $settings ) {

if ( ! apply_filters( 'tf_create_option_continue_' . $this->getOptionNamespace(), true, $settings ) ) {

return null;

}

$obj = TitanFrameworkOption::factory( $settings, $this );

$this->options[] = $obj;

do_action( 'tf_create_option_' . $this->getOptionNamespace(), $obj );

return $obj;

}

}