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Edit File: admin.php

<?php
/**
 * Global admin related items and functionality.
 *
 * @since 1.3.9
 */

/**
 * Load styles for all WPForms-related admin screens.
 *
 * @since 1.3.9
 */
function wpforms_admin_styles() {

if ( ! wpforms_is_admin_page() ) {
		return;
	}

$min = wpforms_get_min_suffix();

// jQuery confirm.
	wp_enqueue_style(
		'jquery-confirm',
		WPFORMS_PLUGIN_URL . 'assets/css/jquery-confirm.min.css',
		array(),
		'3.3.2'
	);

// Minicolors (color picker).
	wp_enqueue_style(
		'minicolors',
		WPFORMS_PLUGIN_URL . 'assets/css/jquery.minicolors.css',
		array(),
		'2.2.6'
	);

// FontAwesome.
	wp_enqueue_style(
		'wpforms-font-awesome',
		WPFORMS_PLUGIN_URL . 'assets/css/font-awesome.min.css',
		null,
		'4.7.0'
	);

// Main admin styles.
	wp_enqueue_style(
		'wpforms-admin',
		WPFORMS_PLUGIN_URL . "assets/css/admin{$min}.css",
		array(),
		WPFORMS_VERSION
	);
}
add_action( 'admin_enqueue_scripts', 'wpforms_admin_styles' );

/**
 * Load scripts for all WPForms-related admin screens.
 *
 * @since 1.3.9
 */
function wpforms_admin_scripts() {

if ( ! wpforms_is_admin_page() ) {
		return;
	}

$min = wpforms_get_min_suffix();

wp_enqueue_media();

// jQuery confirm.
	wp_enqueue_script(
		'jquery-confirm',
		WPFORMS_PLUGIN_URL . 'assets/js/jquery.jquery-confirm.min.js',
		array( 'jquery' ),
		'3.3.2',
		false
	);

// Minicolors (color picker).
	wp_enqueue_script(
		'minicolors',
		WPFORMS_PLUGIN_URL . 'assets/js/jquery.minicolors.min.js',
		array( 'jquery' ),
		'2.2.6',
		false
	);

// Choices.js.
	wp_enqueue_script(
		'choicesjs',
		WPFORMS_PLUGIN_URL . 'assets/js/choices.min.js',
		array(),
		'9.0.1',
		false
	);

// jQuery Conditionals.
	wp_enqueue_script(
		'jquery-conditionals',
		WPFORMS_PLUGIN_URL . 'assets/js/jquery.conditionals.min.js',
		array( 'jquery' ),
		'1.0.1',
		false
	);

// Main admin script.
	wp_enqueue_script(
		'wpforms-admin',
		WPFORMS_PLUGIN_URL . "assets/js/admin{$min}.js",
		array( 'jquery' ),
		WPFORMS_VERSION,
		false
	);

$strings = array(
		'addon_activate' => esc_html__( 'Activate', 'wpforms-lite' ),
		'addon_activated' => esc_html__( 'Activated', 'wpforms-lite' ),
		'addon_active' => esc_html__( 'Active', 'wpforms-lite' ),
		'addon_deactivate' => esc_html__( 'Deactivate', 'wpforms-lite' ),
		'addon_inactive' => esc_html__( 'Inactive', 'wpforms-lite' ),
		'addon_install' => esc_html__( 'Install Addon', 'wpforms-lite' ),
		'addon_error' => esc_html__( 'Could not install addon. Please download from wpforms.com and install manually.', 'wpforms-lite' ),
		'plugin_error' => esc_html__( 'Could not install a plugin. Please download from WordPress.org and install manually.', 'wpforms-lite' ),
		'addon_search' => esc_html__( 'Searching Addons', 'wpforms-lite' ),
		'ajax_url' => admin_url( 'admin-ajax.php' ),
		'cancel' => esc_html__( 'Cancel', 'wpforms-lite' ),
		'close' => esc_html__( 'Close', 'wpforms-lite' ),
		'entry_delete_confirm' => esc_html__( 'Are you sure you want to delete this entry?', 'wpforms-lite' ),
		'entry_delete_all_confirm' => esc_html__( 'Are you sure you want to delete ALL entries?', 'wpforms-lite' ),
		'entry_empty_fields_hide' => esc_html__( 'Hide Empty Fields', 'wpforms-lite' ),
		'entry_empty_fields_show' => esc_html__( 'Show Empty Fields', 'wpforms-lite' ),
		'entry_field_columns' => esc_html__( 'Entries Field Columns', 'wpforms-lite' ),
		'entry_note_delete_confirm' => esc_html__( 'Are you sure you want to delete this note?', 'wpforms-lite' ),
		'entry_unstar' => esc_html__( 'Unstar entry', 'wpforms-lite' ),
		'entry_star' => esc_html__( 'Star entry', 'wpforms-lite' ),
		'entry_read' => esc_html__( 'Mark entry read', 'wpforms-lite' ),
		'entry_unread' => esc_html__( 'Mark entry unread', 'wpforms-lite' ),
		'form_delete_confirm' => esc_html__( 'Are you sure you want to delete this form?', 'wpforms-lite' ),
		'form_duplicate_confirm' => esc_html__( 'Are you sure you want to duplicate this form?', 'wpforms-lite' ),
		'heads_up' => esc_html__( 'Heads up!', 'wpforms-lite' ),
		'importer_forms_required' => esc_html__( 'Please select at least one form to import.', 'wpforms-lite' ),
		'isPro' => wpforms()->pro,
		'nonce' => wp_create_nonce( 'wpforms-admin' ),
		'almost_done' => esc_html__( 'Almost Done', 'wpforms-lite' ),
		'oops' => esc_html__( 'Oops!', 'wpforms-lite' ),
		'ok' => esc_html__( 'OK', 'wpforms-lite' ),
		'plugin_install_activate_btn' => esc_html__( 'Install and Activate', 'wpforms-lite' ),
		'plugin_install_activate_confirm' => esc_html__( 'needs to be installed and activated to import its forms. Would you like us to install and activate it for you?', 'wpforms-lite' ),
		'plugin_activate_btn' => esc_html__( 'Activate', 'wpforms-lite' ),
		'plugin_activate_confirm' => esc_html__( 'needs to be activated to import its forms. Would you like us to activate it for you?', 'wpforms-lite' ),
		'provider_delete_confirm' => esc_html__( 'Are you sure you want to disconnect this account?', 'wpforms-lite' ),
		'provider_auth_error' => esc_html__( 'Could not authenticate with the provider.', 'wpforms-lite' ),
		'save_refresh' => esc_html__( 'Save and Refresh', 'wpforms-lite' ),
		'server_error' => esc_html__( 'Unfortunately, there was an server connection error.', 'wpforms-lite' ),
		'settings_form_style_base' => sprintf(
			wp_kses(
				/* translators: %s - WPForms.com docs page URL. */
				__( 'You\'ve selected Base Styling Only, which may result in styling issues. <a href="%s" target="_blank" rel="noopener noreferrer">Please check out our tutorial</a> for common issues and recommendations.', 'wpforms-lite' ),
				array(
					'strong' => array(),
					'a' => array(
						'href' => array(),
						'target' => array(),
						'rel' => array(),
					),
				)
			),
			'https://wpforms.com/docs/how-to-choose-an-include-form-styling-setting/'
		),
		'settings_form_style_none' => sprintf(
			wp_kses(
				/* translators: %s - WPForms.com docs page URL. */
				__( 'You\'ve selected No Styling, which will likely result in significant styling issues and is recommended only for developers. <a href="%s" target="_blank" rel="noopener noreferrer">Please check out our tutorial</a> for more details and recommendations.', 'wpforms-lite' ),
				array(
					'strong' => array(),
					'a' => array(
						'href' => array(),
						'target' => array(),
						'rel' => array(),
					),
				)
			),
			'https://wpforms.com/docs/how-to-choose-an-include-form-styling-setting/'
		),
		'testing' => esc_html__( 'Testing', 'wpforms-lite' ),
		'upgrade_completed' => esc_html__( 'Upgrade was successfully completed!', 'wpforms-lite' ),
		'upload_image_title' => esc_html__( 'Upload or Choose Your Image', 'wpforms-lite' ),
		'upload_image_button' => esc_html__( 'Use Image', 'wpforms-lite' ),
		'upgrade_modal' => wpforms_get_upgrade_modal_text(),
		'choicesjs_fields_select' => esc_html__( 'Select fields', 'wpforms-lite' ),
		'choicesjs_loading' => esc_html__( 'Loading...', 'wpforms-lite' ),
		'choicesjs_no_results' => esc_html__( 'No results found', 'wpforms-lite' ),
		'choicesjs_no_choices' => esc_html__( 'No choices to choose from', 'wpforms-lite' ),
		'choicesjs_item_select' => esc_html__( 'Press to select', 'wpforms-lite' ),
	);
	$strings = apply_filters( 'wpforms_admin_strings', $strings );

wp_localize_script(
		'wpforms-admin',
		'wpforms_admin',
		$strings
	);
}

add_action( 'admin_enqueue_scripts', 'wpforms_admin_scripts' );

/**
 * Add body class to WPForms admin pages for easy reference.
 *
 * @since 1.3.9
 *
 * @param string $classes CSS classes, space separated.
 *
 * @return string
 */
function wpforms_admin_body_class( $classes ) {

if ( ! wpforms_is_admin_page() ) {
		return $classes;
	}

return "$classes wpforms-admin-page";
}

add_filter( 'admin_body_class', 'wpforms_admin_body_class', 10, 1 );

/**
 * Output the WPForms admin header.
 *
 * @since 1.3.9
 */
function wpforms_admin_header() {

// Bail if we're not on a WPForms screen or page (also exclude form builder).
	if ( ! wpforms_is_admin_page() ) {
		return;
	}

if ( ! apply_filters( 'wpforms_admin_header', true ) ) {
		return;
	}

// Omit header from Welcome activation screen.
	if ( 'wpforms-getting-started' === $_REQUEST['page'] ) {
		return;
	}

do_action( 'wpforms_admin_header_before' );
	?>
	<div id="wpforms-header-temp"></div>
	<div id="wpforms-header" class="wpforms-header">
		<img class="wpforms-header-logo" src="<?php echo WPFORMS_PLUGIN_URL; ?>assets/images/logo.png" alt="WPForms Logo"/>
	</div>
	<?php
	do_action( 'wpforms_admin_header_after' );
}

add_action( 'in_admin_header', 'wpforms_admin_header', 100 );

/**
 * Remove non-WPForms notices from WPForms pages.
 *
 * @since 1.3.9
 */
function wpforms_admin_hide_unrelated_notices() {

// Bail if we're not on a WPForms screen or page.
	if ( empty( $_REQUEST['page'] ) || strpos( $_REQUEST['page'], 'wpforms' ) === false ) {
		return;
	}

// Extra banned classes and callbacks from third-party plugins.
	$blacklist = array(
		'classes'   => array(),
		'callbacks' => array(
			'wpformsdb_admin_notice', // 'Database for WPforms' plugin.
		),
	);

global $wp_filter;

foreach ( array( 'user_admin_notices', 'admin_notices', 'all_admin_notices' ) as $notices_type ) {
		if ( empty( $wp_filter[ $notices_type ]->callbacks ) || ! is_array( $wp_filter[ $notices_type ]->callbacks ) ) {
			continue;
		}
		foreach ( $wp_filter[ $notices_type ]->callbacks as $priority => $hooks ) {
			foreach ( $hooks as $name => $arr ) {
				if ( is_object( $arr['function'] ) && $arr['function'] instanceof Closure ) {
					unset( $wp_filter[ $notices_type ]->callbacks[ $priority ][ $name ] );
					continue;
				}
				$class = ! empty( $arr['function'][0] ) && is_object( $arr['function'][0] ) ? strtolower( get_class( $arr['function'][0] ) ) : '';
				if (
					! empty( $class ) &&
					strpos( $class, 'wpforms' ) !== false &&
					! in_array( $class, $blacklist['classes'], true )
				) {
					continue;
				}
				if (
					! empty( $name ) && (
						strpos( $name, 'wpforms' ) === false ||
						in_array( $class, $blacklist['classes'], true ) ||
						in_array( $name, $blacklist['callbacks'], true )
					)
				) {
					unset( $wp_filter[ $notices_type ]->callbacks[ $priority ][ $name ] );
				}
			}
		}
	}
}
add_action( 'admin_print_scripts', 'wpforms_admin_hide_unrelated_notices' );

/**
 * Upgrade link used within the various admin pages.
 *
 * Previously was only included as a method in wpforms-lite.php, but made
 * available globally in 1.3.9.
 *
 * @since 1.3.9
 *
 * @param string $medium  utm_medium URL parameter.
 * @param string $content utm_content URL parameter.
 *
 * @return string.
 */
function wpforms_admin_upgrade_link( $medium = 'link', $content = '' ) {

$upgrade = add_query_arg(
		array(
			'discount'     => 'LITEUPGRADE',
			'utm_source'   => 'WordPress',
			'utm_campaign' => 'liteplugin',
			'utm_medium'   => apply_filters( 'wpforms_upgrade_link_medium', $medium ),
		),
		'https://wpforms.com/lite-upgrade/'
	);

if ( ! empty( $content ) ) {
		$upgrade = add_query_arg( 'utm_content', $content, $upgrade );
	}

return apply_filters( 'wpforms_upgrade_link', $upgrade );
}

/**
 * Check the current PHP version and display a notice if on unsupported PHP.
 *
 * @since 1.4.0.1
 * @since 1.5.0 Raising this awareness of old PHP version message from 5.2 to 5.3.
 */
function wpforms_check_php_version() {

// Display for PHP below 5.6
	if ( version_compare( PHP_VERSION, '5.5', '>=' ) ) {
		return;
	}

// Display for admins only.
	if ( ! is_super_admin() ) {
		return;
	}

// Display on Dashboard page only.
	if ( isset( $GLOBALS['pagenow'] ) && 'index.php' !== $GLOBALS['pagenow'] ) {
		return;
	}

// Display the notice, finally.
	WPForms_Admin_Notice::error(
		'' .
		sprintf(
			wp_kses(
				/* translators: %1$s - WPForms plugin name; %2$s - WPForms.com URL to a related doc. */
				__( 'Your site is running an outdated version of PHP that is no longer supported and may cause issues with %1$s. <a href="%2$s" target="_blank" rel="noopener noreferrer">Read more</a> for additional information.', 'wpforms-lite' ),
				array(
					'a' => array(
						'href' => array(),
						'target' => array(),
						'rel' => array(),
					),
				)
			),
			'WPForms',
			'https://wpforms.com/docs/supported-php-version/'
		) .
		' ' .
		wp_kses(
			__( 'Please Note: Support for PHP 5.5 will be discontinued in 2020. After this, if no further action is taken, WPForms functionality will be disabled.', 'wpforms-lite' ),
			array(
				'strong' => array(),
				'em' => array(),
			)
		) .
		''
	);
}
add_action( 'admin_init', 'wpforms_check_php_version' );

/**
 * Get an upgrade modal text.
 *
 * @since 1.4.4
 *
 * @param string $type Either "pro" or "elite". Default is "pro".
 *
 * @return string
 */
function wpforms_get_upgrade_modal_text( $type = 'pro' ) {

switch ( $type ) {
		case 'elite':
			$level = 'WPForms Elite';
			break;
		case 'pro':
		default:
			$level = 'WPForms Pro';
	}

return
		'' .
		sprintf( /* translators: %s - license level, WPForms Pro or WPForms Elite. */
			esc_html__( 'Thanks for your interest in %s!', 'wpforms-lite' ),
			$level
		) . ' ' .
		sprintf(
			wp_kses(
				/* translators: %s - WPForms.com contact page URL. */
				__( 'If you have any questions or issues just <a href="%s" target="_blank" rel="noopener noreferrer">let us know</a>.', 'wpforms-lite' ),
				array(
					'a' => array(
						'href' => array(),
						'target' => array(),
						'rel' => array(),
					),
				)
			),
			'https://wpforms.com/contact/'
		) .
		'' .
		'' .
		sprintf(
			wp_kses( /* translators: %s - license level, WPForms Pro or WPForms Elite. */
				__( 'After purchasing a license, just enter your license key on the WPForms Settings page. This will let your site automatically upgrade to %s!', 'wpforms-lite' ),
				[
					'strong' => [],
					'br' => [],
				]
			),
			$level
		) . ' ' .
		esc_html__( '(Don\'t worry, all your forms and settings will be preserved.)', 'wpforms-lite' ) .
		'' .
		'' .
		sprintf(
			wp_kses( /* translators: %s - WPForms.com upgrade from Lite to paid docs page URL. */
				__( 'Check out <a href="%s" target="_blank" rel="noopener noreferrer">our documentation</a> for step-by-step instructions.', 'wpforms-lite' ),
				array(
					'a' => array(
						'href' => array(),
						'target' => array(),
						'rel' => array(),
					),
				)
			),
			'https://wpforms.com/docs/upgrade-wpforms-lite-paid-license/?utm_source=WordPress&amp;utm_medium=link&amp;utm_campaign=liteplugin'
		) .
		'';
}

/**
 * Hide the wp-admin area "Version x.x" in footer on WPForms pages.
 *
 * @since 1.5.7
 *
 * @param string $text Default "Version x.x" or "Get Version x.x" text.
 *
 * @return string
 */
function wpforms_admin_hide_wp_version( $text ) {

// Reset text if we're not on a WPForms screen or page.
	if ( wpforms_is_admin_page() ) {
		return '';
	}

return $text;
}
add_filter( 'update_footer', 'wpforms_admin_hide_wp_version', PHP_INT_MAX );

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