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<?php
namespace WPForms\Emails;
use TijsVerkoyen\CssToInlineStyles\CssToInlineStyles;
use WPForms\Helpers\Templates;
/**
* Styler class inline style email templates.
*
* @since 1.5.4
*/
class Styler {
/**
* Email message with no styles.
*
* @since 1.5.4
*
* @var string
*/
protected $email;
/**
* Email style templates names.
*
* @since 1.5.4
*
* @var array
*/
protected $style_templates;
/**
* Email style overrides.
*
* @since 1.5.4
*
* @var array
*/
protected $style_overrides;
/**
* Email message with inline styles.
*
* @since 1.5.4
*
* @var string
*/
protected $styled_email;
/**
* Constructor.
*
* @since 1.5.4
*
* @param string $email Email with no styles.
* @param array $style_templates Email style templates.
* @param array $style_overrides Email style overrides.
*/
public function __construct( $email, $style_templates, $style_overrides ) {
$this->email = $email;
$this->style_templates = \is_array( $style_templates ) ? $style_templates : array();
$this->style_overrides = \is_array( $style_overrides ) ? $style_overrides : array();
}
/**
* Template style overrides.
*
* @since 1.5.4
*
* @return array
*/
protected function get_style_overrides() {
$defaults = array(
'email_background_color' => \wpforms_setting( 'email-background-color', '#e9eaec' ),
);
$overrides = \wp_parse_args( $this->style_overrides, $defaults );
return \apply_filters( 'wpforms_emails_mailer_get_style_overrides', $overrides, $this );
}
/**
* Locate template name matching styles.
*
* @since 1.5.4
*
* @param string $name Template file name part.
*
* @return string
*/
protected function get_styles( $name = 'style' ) {
if ( ! \array_key_exists( $name, $this->style_templates ) ) {
return '';
}
return Templates::get_html(
$this->style_templates[ $name ],
$this->get_style_overrides(),
true
);
}
/**
* Final processing of the template markup.
*
* @since 1.5.4
*/
public function process_markup() {
$this->styled_email = ( new CssToInlineStyles() )->convert( $this->email, $this->get_styles() );
$queries = '<style type="text/css">' . $this->get_styles( 'queries' ) . "</style>\n</head>";
// Inject media queries, CssToInlineStyles strips them.
$this->styled_email = \str_replace( '</head>', $queries, $this->styled_email );
}
/**
* Get an email with inline styles.
*
* @since 1.5.4
*
* @return string
*/
public function get() {
if ( empty( $this->styled_email ) ) {
$this->process_markup();
}
return $this->styled_email;
}
}