GravityView_Settings::uninstall_form() - Code Metrics - Inspection of "Merge pull request #778 from gravityview/develop" - gravityview/GravityView - Measure and Improve Code Quality continuously with Scrutinizer

Completed
Push — master ( 2cfa6f...8927a4 )

by Zack
created 2016-10-12 05:22 UTC
GravityView_Settings::uninstall_form() B

↳ Parent: GravityView_Settings
Complexity

Conditions	3
Paths	4
Size

Total Lines	126
Code Lines	36
Duplication

Lines	0
Ratio	0 %
Importance

Changes
Metric	Value
cc	3
eloc	36
nc	4
nop	0
dl	0
loc	126
rs	8.2857
c	0
b	0
f	0
How to fix Long Method

<?php


if( ! class_exists('GFAddOn') ) {

	return;
}

/**
 * GravityView Settings class (get/set/license validation) using the Gravity Forms App framework
 * @since 1.7.4 (Before, used the Redux Framework)
 */
class GravityView_Settings extends GFAddOn {

	/**
	 * @var string Version number of the Add-On
	 */
	protected $_version = GravityView_Plugin::version;
	/**
	 * @var string Gravity Forms minimum version requirement
	 */
	protected $_min_gravityforms_version = GV_MIN_GF_VERSION;

	/**
	 * @var string Title of the plugin to be used on the settings page, form settings and plugins page. Example: 'Gravity Forms MailChimp Add-On'
	 */
	protected $_title = 'GravityView';

	/**
	 * @var string Short version of the plugin title to be used on menus and other places where a less verbose string is useful. Example: 'MailChimp'
	 */
	protected  $_short_title = 'GravityView';

	/**
	 * @var string URL-friendly identifier used for form settings, add-on settings, text domain localization...
	 */
	protected $_slug = 'gravityview';

	/**
	 * @var string|array A string or an array of capabilities or roles that can uninstall the plugin
	 */
	protected $_capabilities_uninstall = 'gravityview_uninstall';

	/**
	 * @var string|array A string or an array of capabilities or roles that have access to the settings page
	 */
	protected $_capabilities_app_settings = 'gravityview_view_settings';

	/**
	 * @var string|array A string or an array of capabilities or roles that have access to the settings page
	 */
	protected $_capabilities_app_menu = 'gravityview_view_settings';

	/**
	 * @var string The hook suffix for the app menu
	 */
	public  $app_hook_suffix = 'gravityview';

	/**
	 * @var GV_License_Handler Process license validation
	 */
	private $License_Handler;

	/**
	 * @var GravityView_Settings
	 */
	private static $instance;

	/**
	 * We're not able to set the __construct() method to private because we're extending the GFAddon class, so
	 * we fake it. When called using `new GravityView_Settings`, it will return get_instance() instead. We pass
	 * 'get_instance' as a test string.
	 *
	 * @see get_instance()
	 *
	 * @param string $prevent_multiple_instances
	 */
	public function __construct( $prevent_multiple_instances = '' ) {

		if( $prevent_multiple_instances === 'get_instance' ) {

			return parent::__construct();

		}

		return self::get_instance();

	}

	/**
	 * @return GravityView_Settings
	 */
	public static function get_instance() {

		if( empty( self::$instance ) ) {
			self::$instance = new self( 'get_instance' );
		}

		return self::$instance;
	}

	/**
	 * Prevent uninstall tab from being shown by returning false for the uninstall capability check. Otherwise:
	 * @inheritDoc
	 *
	 * @hack
	 *
	 * @param array|string $caps
	 *
	 * @return bool
	 */
	public function current_user_can_any( $caps ) {

		if( empty( $caps ) ) {
			$caps = array( 'gravityview_full_access' );
		}

		return GVCommon::has_cap( $caps );
	}

	public function uninstall_warning_message() {

		$heading = esc_html__( 'If you delete then re-install GravityView, it will be like installing GravityView for the first time.', 'gravityview' );
		$message = esc_html__( 'Delete all Views, GravityView entry approval status, GravityView-generated entry notes (including approval and entry creator changes), and GravityView plugin settings.', 'gravityview' );

		return sprintf( '<h4>%s</h4><p>%s</p>', $heading, $message );
	}

	/**
     * Uninstall all traces of GravityView
     *
     * Note: method is public because parent method is public
     *
	 * @return bool
	 */
	public function uninstall() {

		include_once( GRAVITYVIEW_DIR . 'includes/class-gravityview-uninstall.php' );

		$uninstaller = new GravityView_Uninstall();

		$uninstaller->fire_everything();

		/**
         * Set the path so that Gravity Forms can de-activate GravityView
         * @see GFAddOn::uninstall_addon
         * @uses deactivate_plugins()
         */
		$this->_path = GRAVITYVIEW_FILE;

		return true;
	}

	/**
     * Get an array of reasons why the plugin might be uninstalled
     *
     * @since 1.17.5
     *
	 * @return array Array of reasons with the label and followup questions for each uninstall reason
	 */
	private function get_uninstall_reasons() {

		$reasons = array(
			'will-continue' => array(
                'label' => esc_html__( 'I am going to continue using GravityView', 'gravityview' ),
            ),
			'no-longer-need' => array(
                'label' => esc_html__( 'I no longer need GravityView', 'gravityview' ),
            ),
			'doesnt-work' => array(
                'label' => esc_html__( 'The plugin doesn\'t work', 'gravityview' ),
            ),
			'found-other' => array(
                'label' => esc_html__( 'I found a better plugin', 'gravityview' ),
                'followup' => esc_attr__('What plugin you are using, and why?', 'gravityview'),

            ),
			'other' => array(
                'label' => esc_html__( 'Other', 'gravityview' ),
            ),
		);

		shuffle( $reasons );

		return $reasons;
    }

	/**
     * Display a feedback form when the plugin is uninstalled
     *
     * @since 1.17.5
     *
	 * @return string HTML of the uninstallation form
	 */
	public function uninstall_form() {
		ob_start();

		$user = wp_get_current_user();
		?>
    <style>
        #gv-reason-details {
            min-height: 100px;
        }
        .number-scale label {
            border: 1px solid #cccccc;
            padding: .5em .75em;
            margin: .1em;
        }
        #gv-uninstall-thanks p {
            font-size: 1.2em;
        }
        .scale-description ul {
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .scale-description p.description {
            margin-top: 0!important;
            padding-top: 0!important;
        }
        .gv-form-field-wrapper {
            margin-top: 30px;
        }
    </style>

    <div class="gv-uninstall-form-wrapper" style="font-size: 110%; padding: 15px 0;">
        <script>
            jQuery(function( $ ) {
                $('#gv-uninstall-feedback').on( 'change', function( e ) {

                    if( ! $( e.target ).is(':input') ) {
                        return;
                    }
                    var $textarea = $('.gv-followup').find('textarea');
                    var followup_text = $( e.target ).attr( 'data-followup' );
                    if( ! followup_text ) {
                        followup_text = $textarea.attr('data-default');
                    }

                    $textarea.attr( 'placeholder', followup_text );

                }).on( 'submit', function( e ) {
                    e.preventDefault();

                    $.post( $( this ).attr( 'action' ), $( this ).serialize() )
                        .done( function( data ) {
                            if( 'success' !== data.status ) {
                                gv_feedback_append_error_message();
                            } else {
                                $( '#gv-uninstall-thanks' ).fadeIn();
                            }
                        })
                        .fail( function( data ) {
                            gv_feedback_append_error_message();
                        })
                        .always( function() {
                            $( e.target ).remove();
                        });

                    return false;
                });

                function gv_feedback_append_error_message() {
                    $('#gv-uninstall-thanks').append('<div class="notice error"><?php echo esc_js( __('There was an error sharing your feedback. Sorry! Please email us at [email protected]', 'gravityview' ) ) ?></div>');

                }
            });
        </script>

        <form id="gv-uninstall-feedback" method="post" action="https://hooks.zapier.com/hooks/catch/28670/6haevn/">
            <h2><?php esc_html_e( 'Why did you uninstall GravityView?', 'gravityview' ); ?></h2>
            <ul>
				<?php
                $reasons = $this->get_uninstall_reasons();
				foreach ( $reasons as $reason ) {
					printf( '<li><label><input name="reason" type="radio" value="other" data-followup="%s"> %s</label></li>', rgar( $reason, 'followup' ), rgar( $reason, 'label' ) );
				}
				?>
            </ul>
            <div class="gv-followup widefat">
                <p><strong><label for="gv-reason-details"><?php esc_html_e( 'Comments', 'gravityview' ); ?></label></strong></p>
                <textarea id="gv-reason-details" name="reason_details" data-default="<?php esc_attr_e('Please share your thoughts about GravityView', 'gravityview') ?>" placeholder="<?php esc_attr_e('Please share your thoughts about GravityView', 'gravityview'); ?>" class="large-text"></textarea>

            </div>
            <div class="scale-description">
                <p><strong><?php esc_html_e('How likely are you to recommend GravityView?', 'gravityview' ); ?></strong></p>

                <ul class="inline">
					<?php
					$i = 0;
					while( $i < 11 ) {
						echo '<li class="inline number-scale"><label><input name="likely_to_refer" id="likely_to_refer_'.$i.'" value="'.$i.'" type="radio"> '.$i.'</label></li>';

						$i++;
					}
					?>
                </ul>
                <p class="description"><?php printf( esc_html_x( '%s ("Not at all likely") to %s ("Extremely likely")', 'A scale from 0 (bad) to 10 (good)', 'gravityview' ), '<label for="likely_to_refer_0"><code>0</code></label>', '<label for="likely_to_refer_10"><code>10</code></label>' ); ?></p>
            </div>

            <div class="gv-form-field-wrapper">
                <label><input type="checkbox" class="checkbox" name="follow_up_with_me" value="1" /> <?php esc_html_e('Please follow up with me about my feedback', 'gravityview'); ?></label>

            </div>

            <div class="submit">
                <input type="hidden" name="siteurl" value="<?php echo esc_url( get_bloginfo( 'siteurl' ) ); ?>" />
                <input type="hidden" name="email" value="<?php echo esc_attr( $user->user_email ); ?>" />
                <input type="hidden" name="display_name" value="<?php echo esc_attr( $user->display_name ); ?>" />
                <input type="submit" value="<?php esc_html_e( 'Send Us Your Feedback', 'gravityview' ); ?>" class="button button-primary button-hero" />
            </div>
        </form>

        <div id="gv-uninstall-thanks" class="notice notice-large notice-updated below-h2" style="display:none;">
            <h3 class="notice-title"><?php esc_html_e( 'Thank you for using GravityView!', 'gravityview' ); ?></h3>
            <p><?php echo gravityview_get_floaty(); ?>

				<?php echo make_clickable( esc_html__('Your feedback helps us improve GravityView. If you have any questions or comments, email us: [email protected]', 'gravityview' ) ); ?>

            </p>
            <div class="wp-clearfix"></div>
        </div>
    </div>
		<?php
		$form = ob_get_clean();

		return $form;
	}


	public function app_settings_uninstall_tab() {

		if ( $this->maybe_uninstall() ) {

			parent::app_settings_uninstall_tab();

			return;
		}

		if ( ! ( $this->current_user_can_any( $this->_capabilities_uninstall ) && ( ! function_exists( 'is_multisite' ) || ! is_multisite() || is_super_admin() ) ) ) {
			return;
		}

		?>
		<script>
			jQuery(document).on('click', 'a[rel="gv-uninstall-wrapper"]', function( e ) {
				e.preventDefault();
				jQuery( '#gv-uninstall-wrapper' ).slideToggle();
			});
		</script>

		<a rel="gv-uninstall-wrapper" href="#gv-uninstall-wrapper" class="button button-large alignright button-danger">Uninstall GravityView</a>

		<div id="gv-uninstall-wrapper">
			<form action="" method="post">
				<?php wp_nonce_field( 'uninstall', 'gf_addon_uninstall' ) ?>
				<div class="delete-alert alert_red">

					<h3>
						<i class="fa fa-exclamation-triangle gf_invalid"></i> <?php esc_html_e( 'Delete all GravityView content and settings', 'gravityview' ); ?>
					</h3>

					<div class="gf_delete_notice">
						<?php echo $this->uninstall_warning_message() ?>

					</div>

					<?php
					echo '<input type="submit" name="uninstall" value="' . sprintf( esc_attr__( 'Uninstall %s', 'gravityview' ), $this->get_short_title() ) . '" class="button button-hero" onclick="return confirm(\'' . esc_js( $this->uninstall_confirm_message() ) . '\');" onkeypress="return confirm(\'' . esc_js( $this->uninstall_confirm_message() ) . '\');"/>';

					?>

				</div>
			</form>
		</div>
	<?php
	}

	/**
	 * Run actions when initializing admin
	 *
	 * Triggers the license key notice
	 *
	 * @return void
	 */
	function init_admin() {


		$this->_load_license_handler();

		$this->license_key_notice();

		add_filter( 'gform_addon_app_settings_menu_gravityview', array( $this, 'modify_app_settings_menu_title' ) );

		/** @since 1.7.6 */
		add_action('network_admin_menu', array( $this, 'add_network_menu' ) );


		parent::init_admin();
	}

	/**
	 * Change the settings page header title to "GravityView"
	 *
	 * @param $setting_tabs
	 *
	 * @return array
	 */
	public function modify_app_settings_menu_title( $setting_tabs ) {

		$setting_tabs[0]['label'] = __( 'GravityView Settings', 'gravityview');


		return $setting_tabs;
	}

	/**
	 * Load license handler in admin-ajax.php
	 */
	public function init_ajax() {
		$this->_load_license_handler();
	}

	/**
	 * Make sure the license handler is available
	 */
	private function _load_license_handler() {

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

			return;
		}

		require_once( GRAVITYVIEW_DIR . 'includes/class-gv-license-handler.php');


		$this->License_Handler = GV_License_Handler::get_instance( $this );
	}

	/**
	 * Display a notice if the plugin is inactive.
	 * @return void
	 */
	function license_key_notice() {


		// Only show on GravityView pages
		if( ! gravityview_is_admin_page() ) {
			return;
		}

		$license_status = self::getSetting('license_key_status');

		$license_key = self::getSetting('license_key');

		if( '' === $license_key ) {
			$license_status = 'inactive';
        }
		$license_id = empty( $license_key ) ? 'license' : $license_key;

		$message = esc_html__('Your GravityView license %s. This means you&rsquo;re missing out on updates and support! %sActivate your license%s or %sget a license here%s.', 'gravityview');


		/**
		 * I wanted to remove the period from after the buttons in the string,
		 * but didn't want to mess up the translation strings for the translators.
		 */
		$message = mb_substr( $message, 0, mb_strlen( $message ) - 1 );
		$title = __('Inactive License', 'gravityview');

		$status = '';
		$update_below = false;
		$primary_button_link = admin_url( 'edit.php?post_type=gravityview&amp;page=gravityview_settings' );
		switch ( $license_status ) {
			/** @since 1.17 */
			case 'expired':
				$title = __('Expired License', 'gravityview');

				$status = 'expired';
				$message = $this->get_license_handler()->strings( 'expired', self::getSetting('license_key_response') );

				break;
			case 'invalid':
				$title = __('Invalid License', 'gravityview');

				$status = __('is invalid', 'gravityview');

				break;
			case 'deactivated':
				$status = __('is inactive', 'gravityview');

				$update_below = __('Activate your license key below.', 'gravityview');

				break;
			/** @noinspection PhpMissingBreakStatementInspection */
			case '':
				$license_status = 'site_inactive';
				// break intentionally left blank
			case 'inactive':
			case 'site_inactive':
				$status = __('has not been activated', 'gravityview');

				$update_below = __('Activate your license key below.', 'gravityview');

				break;
		}
		$url = 'https://gravityview.co/pricing/?utm_source=admin_notice&utm_medium=admin&utm_content='.$license_status.'&utm_campaign=Admin%20Notice';

		// Show a different notice on settings page for inactive licenses (hide the buttons)
		if( $update_below && gravityview_is_admin_page( '', 'settings' ) ) {
			$message = sprintf( $message, $status, '<div class="hidden">', '', '', '</div><a href="#" onclick="jQuery(\'#license_key\').focus(); return false;">' . $update_below . '</a>' );
		} else {
			$message = sprintf( $message, $status, "\n\n" . '<a href="' . esc_url( $primary_button_link ) . '" class="button button-primary">', '</a>', '<a href="' . esc_url( $url ) . '" class="button button-secondary">', '</a>' );
		}

		if( !empty( $status ) ) {

			GravityView_Admin_Notices::add_notice( array(
				'message' => $message,
				'class'	=> 'updated',
				'title' => $title,
				'cap' => 'gravityview_edit_settings',
				'dismiss' => sha1( $license_status.'_'.$license_id ),
			));
		}
	}

	/**
	 * Register styles in the app admin page
	 * @return array
	 */
	public function styles() {

		$styles = parent::styles();

		$styles[] = array(
			'handle'  => 'gravityview_settings',
			'src'     => plugins_url( 'assets/css/admin-settings.css', GRAVITYVIEW_FILE ),
			'version' => GravityView_Plugin::version,
			"deps" => array(
<?php

$singleQuoted = 'Value';
$doubleQuoted = "\tSingle is $singleQuoted";

print $doubleQuoted;
				'gaddon_form_settings_css'
			),
			'enqueue' => array(
				array( 'admin_page' => array(

					'app_settings'
				) ),
			)
		);

		return $styles;
	}

	/**
	 * Add global Settings page for Multisite
	 * @since 1.7.6
	 * @return void
	 */
	public function add_network_menu() {
		if( GravityView_Plugin::is_network_activated() ) {
			add_menu_page( __( 'Settings', 'gravityview' ), __( 'GravityView', 'gravityview' ), $this->_capabilities_app_settings, "{$this->_slug}_settings", array( $this, 'app_tab_page' ), 'none' );
		}
	}

	/**
	 * Add Settings link to GravityView menu
	 * @return void
	 */
	public function create_app_menu() {

		/**
		 * If not multisite, always show.
		 * If multisite and the plugin is network activated, show; we need to register the submenu page for the Network Admin settings to work.
		 * If multisite and not network admin, we don't want the settings to show.
		 * @since 1.7.6
		 */
		$show_submenu = !is_multisite() ||  is_main_site() || !GravityView_Plugin::is_network_activated() || ( is_network_admin() && GravityView_Plugin::is_network_activated() );


		/**
		 * Override whether to show the Settings menu on a per-blog basis.
		 * @since 1.7.6
		 * @param bool $hide_if_network_activated Default: true
		 */
		$show_submenu = apply_filters( 'gravityview/show-settings-menu', $show_submenu );

		if( $show_submenu ) {
			add_submenu_page( 'edit.php?post_type=gravityview', __( 'Settings', 'gravityview' ), __( 'Settings', 'gravityview' ), $this->_capabilities_app_settings, $this->_slug . '_settings', array( $this, 'app_tab_page' ) );
		}
	}

	/**
	 * The Settings title
	 * @return string
	 */
	public function app_settings_title() {
		return null;
	}

	/**
	 * Prevent displaying of any icon
	 * @return string
	 */
	public function app_settings_icon() {
		return '&nbsp;';
	}

	public function app_settings_tab() {
	    parent::app_settings_tab();

		if ( $this->maybe_uninstall() ) {
            echo $this->uninstall_form();

		}
    }

	/**
	 * Make protected public
	 * @inheritDoc
	 * @access public
	 */
	public function get_app_setting( $setting_name ) {

		/**
		 * Backward compatibility with Redux
		 */
		if( $setting_name === 'license' ) {

			return array(
				'license' => parent::get_app_setting( 'license_key' ),
				'status' => parent::get_app_setting( 'license_key_status' ),
				'response' => parent::get_app_setting( 'license_key_response' ),
			);
		}

		return parent::get_app_setting( $setting_name );
	}

	/**
	 * Returns the currently saved plugin settings
	 *
	 * Different from GFAddon in two ways:
	 * 1. Makes protected method public
	 * 2. Use default settings if the original settings don't exist
	 *
	 * @access public
	 *
	 * @return array
	 */
	public function get_app_settings() {
		return get_option( 'gravityformsaddon_' . $this->_slug . '_app_settings', $this->get_default_settings() );
	}


	/**
	 * Updates app settings with the provided settings
	 *
	 * Same as the GVAddon, except it returns the value from update_option()
	 *
	 * @param array $settings - App settings to be saved
	 *
	 * @return boolean False if value was not updated and true if value was updated.
	 */
	public function update_app_settings( $settings ) {
		return update_option( 'gravityformsaddon_' . $this->_slug . '_app_settings', $settings );
	}

	/**
	 * Make protected public
	 * @inheritDoc
	 * @access public
	 */
	public function set_field_error( $field, $error_message = '' ) {
		parent::set_field_error( $field, $error_message );
	}

	/**
	 * Register the settings field for the EDD License field type
	 * @param array $field
	 * @param bool $echo Whether to echo the
	 *
	 * @return string
	 */
	protected function settings_edd_license( $field, $echo = true ) {

		$text = self::settings_text( $field, false );

		$activation = $this->License_Handler->settings_edd_license_activation( $field, false );

		$return = $text . $activation;

		if( $echo ) {
			echo $return;

		}

		return $return;
	}

	/**
	 * Allow public access to the GV_License_Handler class
	 * @since 1.7.4
	 *
	 * @return GV_License_Handler
	 */
	public function get_license_handler() {
		return $this->License_Handler;
	}

	/***
	 * Renders the save button for settings pages
	 *
	 * @param array $field - Field array containing the configuration options of this field
	 * @param bool  $echo  = true - true to echo the output to the screen, false to simply return the contents as a string
	 *
	 * @return string The HTML
	 */
	public function settings_submit( $field, $echo = true ) {

		$field['type']  = ( isset($field['type']) && in_array( $field['type'], array('submit','reset','button') ) ) ? $field['type'] : 'submit';


		$attributes    = $this->get_field_attributes( $field );
		$default_value = rgar( $field, 'value' ) ? rgar( $field, 'value' ) : rgar( $field, 'default_value' );
		$value         = $this->get_setting( $field['name'], $default_value );



		$attributes['class'] = isset( $attributes['class'] ) ? esc_attr( $attributes['class'] ) : 'button-primary gfbutton';
		$name    = ( $field['name'] === 'gform-settings-save' ) ? $field['name'] : '_gaddon_setting_'.$field['name'];

		if ( empty( $value ) ) {
			$value = __( 'Update Settings', 'gravityview' );
		}

		$attributes = $this->get_field_attributes( $field );

		$html = '<input
                    type="' . $field['type'] . '"
                    name="' . esc_attr( $name ) . '"
                    value="' . $value . '" ' .
		        implode( ' ', $attributes ) .
		        ' />';

		if ( $echo ) {
			echo $html;

		}

		return $html;
	}

	/**
	 * Allow customizing the Save field parameters
	 *
	 * @param array $field
	 * @param bool $echo
	 *
	 * @return string
	 */
	public function settings_save( $field, $echo = true ) {
		$field['type']  = 'submit';
		$field['name']  = 'gform-settings-save';
		$field['class'] = isset( $field['class'] ) ? $field['class'] : 'button-primary gfbutton';

		if ( ! rgar( $field, 'value' ) ) {
			$field['value'] = __( 'Update Settings', 'gravityview' );
		}

		$output = $this->settings_submit( $field, false );

		ob_start();
		$this->app_settings_uninstall_tab();
		$output .= ob_get_clean();

		if( $echo ) {
			echo $output;

		}

		return $output;
	}


	/**
	 * The same as the parent, except added support for field descriptions
	 * @inheritDoc
	 * @param $field array
	 */
	public function single_setting_label( $field ) {

		parent::single_setting_label( $field );

		// Added by GravityView
		if ( isset( $field['description'] ) ) {
			echo '<span class="description">'. $field['description'] .'</span>';

		}

	}

	/**
	 * Get the default settings for the plugin
	 *
	 * Merges previous settings created when using the Redux Framework
	 *
	 * @return array Settings with defaults set
	 */
	private function get_default_settings() {

		$defaults = array(
			// Set the default license in wp-config.php
			'license_key' => defined( 'GRAVITYVIEW_LICENSE_KEY' ) ? GRAVITYVIEW_LICENSE_KEY : '',
			'license_key_response' => '',
			'license_key_status' => '',
			'support-email' => get_bloginfo( 'admin_email' ),
			'no-conflict-mode' => '1',
			'support_port' => '1',
			'flexbox_search' => '1',
		);

		return $defaults;
	}

	/**
	 * Check for the `gravityview_edit_settings` capability before saving plugin settings.
	 * Gravity Forms says you're able to edit if you're able to view settings. GravityView allows two different permissions.
	 *
	 * @since 1.15
	 * @return void
	 */
	public function maybe_save_app_settings() {

		if ( $this->is_save_postback() ) {
			if ( ! GVCommon::has_cap( 'gravityview_edit_settings' ) ) {
				$_POST = array(); // If you don't reset the $_POST array, it *looks* like the settings were changed, but they weren't
				GFCommon::add_error_message( __( 'You don\'t have the ability to edit plugin settings.', 'gravityview' ) );
				return;
			}
		}

		parent::maybe_save_app_settings();
	}

	/**
	 * When the settings are saved, make sure the license key matches the previously activated key
	 *
	 * @return array settings from parent::get_posted_settings(), with `license_key_response` and `license_key_status` potentially unset
	 */
	public function get_posted_settings() {

		$posted_settings = parent::get_posted_settings();

		$local_key = rgar( $posted_settings, 'license_key' );
		$response_key = rgars( $posted_settings, 'license_key_response/license_key' );

		// If the posted key doesn't match the activated/deactivated key (set using the Activate License button, AJAX response),
		// then we assume it's changed. If it's changed, unset the status and the previous response.
		if( $local_key !== $response_key ) {

			unset( $posted_settings['license_key_response'] );
			unset( $posted_settings['license_key_status'] );
			GFCommon::add_error_message( __('The license key you entered has been saved, but not activated. Please activate the license.', 'gravityview' ) );

		}

		return $posted_settings;
	}

	/**
	 * Gets the required indicator
	 * Gets the markup of the required indicator symbol to highlight fields that are required
	 *
	 * @param $field - The field meta.
	 *
	 * @return string - Returns markup of the required indicator symbol
	 */
	public function get_required_indicator( $field ) {
		return '<span class="required" title="' . esc_attr__( 'Required', 'gravityview' ) . '">*</span>';
	}

	/**
	 * Specify the settings fields to be rendered on the plugin settings page
	 * @return array
	 */
	public function app_settings_fields() {

		$default_settings = $this->get_default_settings();

		$disabled_attribute = GVCommon::has_cap( 'gravityview_edit_settings' ) ? false : 'disabled';

		$fields = apply_filters( 'gravityview_settings_fields', array(
			array(
				'name'                => 'license_key',
				'required'               => true,
				'label'             => __( 'License Key', 'gravityview' ),
				'description'          => __( 'Enter the license key that was sent to you on purchase. This enables plugin updates &amp; support.', 'gravityview' ) . $this->get_license_handler()->license_details( $this->get_app_setting( 'license_key_response' ) ),

				'type'              => 'edd_license',
				'data-pending-text' => __('Verifying license&hellip;', 'gravityview'),

				'default_value'           => $default_settings['license_key'],
				'class'             => ( '' == $this->get_app_setting( 'license_key' ) ) ? 'activate code regular-text edd-license-key' : 'deactivate code regular-text edd-license-key',
			),
			array(
				'name'       => 'license_key_response',
				'default_value'  => $default_settings['license_key_response'],
				'type'     => 'hidden',
			),
			array(
				'name'       => 'license_key_status',
				'default_value'  => $default_settings['license_key_status'],
				'type'     => 'hidden',
			),
			array(
				'name'       => 'support-email',
				'type'     => 'text',
				'validate' => 'email',
				'default_value'  => $default_settings['support-email'],
				'label'    => __( 'Support Email', 'gravityview' ),
				'description' => __( 'In order to provide responses to your support requests, please provide your email address.', 'gravityview' ),
				'class'    => 'code regular-text',
			),
			/**
			 * @since 1.15 Added Support Port support
			 */
			array(
				'name'         => 'support_port',
				'type'       => 'radio',
				'label'      => __( 'Show Support Port?', 'gravityview' ),
				'default_value'    => $default_settings['support_port'],
				'horizontal' => 1,
				'choices'    => array(
					array(
						'label' => _x('Show', 'Setting: Show or Hide', 'gravityview'),

						'value' => '1',
					),
					array(
						'label' => _x('Hide', 'Setting: Show or Hide', 'gravityview'),

						'value' => '0',
					),
				),
				'tooltip' => '<p><img src="' . esc_url_raw( plugins_url('assets/images/screenshots/beacon.png', GRAVITYVIEW_FILE ) ) . '" alt="' . esc_attr__( 'The Support Port looks like this.', 'gravityview' ) . '" class="alignright" style="max-width:40px; margin:.5em;" />' . esc_html__('The Support Port provides quick access to how-to articles and tutorials. For administrators, it also makes it easy to contact support.', 'gravityview') . '</p>',

				'description'   => __( 'Show the Support Port on GravityView pages?', 'gravityview' ),
			),
			array(
				'name'         => 'no-conflict-mode',
				'type'       => 'radio',
				'label'      => __( 'No-Conflict Mode', 'gravityview' ),
				'default_value'    => $default_settings['no-conflict-mode'],
				'horizontal' => 1,
				'choices'    => array(
					array(
						'label' => _x('On', 'Setting: On or off', 'gravityview'),

						'value' => '1',
					),
					array(
						'label' => _x('Off', 'Setting: On or off', 'gravityview'),

						'value' => '0',
					),
				),
				'description'   => __( 'Set this to ON to prevent extraneous scripts and styles from being printed on GravityView admin pages, reducing conflicts with other plugins and themes.', 'gravityview' ) . ' ' . __('If your Edit View tabs are ugly, enable this setting.', 'gravityview'),

			),
		) );




		/**
		 * Redux backward compatibility
		 * @since 1.7.4
		 */
		foreach ( $fields as &$field ) {
			$field['name']          = isset( $field['name'] ) ? $field['name'] : rgget('id', $field );

			$field['label']         = isset( $field['label'] ) ? $field['label'] : rgget('title', $field );

			$field['default_value'] = isset( $field['default_value'] ) ? $field['default_value'] : rgget('default', $field );

			$field['description']   = isset( $field['description'] ) ? $field['description'] : rgget('subtitle', $field );


			if( $disabled_attribute ) {
				$field['disabled']  = $disabled_attribute;
			}
		}



        $sections = array(
            array(
                'description' =>      sprintf( '<span class="version-info description">%s</span>', sprintf( __('You are running GravityView version %s', 'gravityview'), GravityView_Plugin::version ) ),

                'fields'      => $fields,
            )

        );

        // custom 'update settings' button
        $button = array(
            'class' => 'button button-primary button-hero',
            'type'     => 'save',
        );

		if( $disabled_attribute ) {
			$button['disabled'] = $disabled_attribute;
		}



        /**
         * @filter `gravityview/settings/extension/sections` Modify the GravityView settings page
         * Extensions can tap in here to insert their own section and settings.
         * <code>
         *   $sections[] = array(
         *      'title' => __( 'GravityView My Extension Settings', 'gravityview' ),
         *      'fields' => $settings,
         *   );
         * </code>
         * @param array $extension_settings Empty array, ready for extension settings!
         */
        $extension_sections = apply_filters( 'gravityview/settings/extension/sections', array() );

		// If there are extensions, add a section for them
		if ( ! empty( $extension_sections ) ) {

			if( $disabled_attribute ) {
				foreach ( $extension_sections as &$section ) {
					foreach ( $section['fields'] as &$field ) {
						$field['disabled'] = $disabled_attribute;
					}
				}
			}

            $k = count( $extension_sections ) - 1 ;
            $extension_sections[ $k ]['fields'][] = $button;
			$sections = array_merge( $sections, $extension_sections );
		} else {
            // add the 'update settings' button to the general section
            $sections[0]['fields'][] = $button;
        }

		return $sections;
	}

	/**
	 * Get the setting for GravityView by name
	 *
	 * @param  string $key     Option key to fetch
	 *
	 * @return mixed
	 */
	static public function getSetting( $key ) {

		return self::get_instance()->get_app_setting( $key );
	}

}

GravityView_Settings::get_instance();
gravityview / GravityView

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GravityView_Settings::uninstall_form() B

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