for PRAutoBlogger posts.
*
* Only outputs on singular post pages generated by PRAutoBlogger.
* The CSS targets .post-content (PR Theme's article body class)
* and overrides the theme's CSS custom properties so the cascade
* works naturally with headings and sub-elements.
*
* Side effects: echoes a \n",
$css // Already escaped — contains only sanitized option values.
);
}
/**
* Build the CSS string from current settings.
*
* Reads each setting at call time (never cached) so changes
* take effect immediately without cache invalidation.
*
* @return string CSS rules, or empty string if all defaults.
*/
private function build_css(): string {
$rules = [];
$font_family = $this->get_font_family_stack();
if ( '' !== $font_family ) {
$rules[] = sprintf(
".post-content,\n.post-content p,\n.post-content li {\n\tfont-family: %s;\n}",
$font_family
);
}
$font_size = absint( get_option( self::OPT_FONT_SIZE, 0 ) );
if ( $font_size > 0 ) {
$rules[] = sprintf(
".post-content,\n.post-content p,\n.post-content li {\n\tfont-size: %dpx;\n\tline-height: 1.7;\n}",
$font_size
);
}
$table_borders = get_option( self::OPT_TABLE_BORDERS, '1' );
if ( '1' === $table_borders ) {
$rules[] = implode( "\n", [
'.post-content table {',
"\tborder-collapse: collapse;",
"\twidth: 100%;",
"\tmargin: 1.5em 0;",
'}',
'.post-content th,',
'.post-content td {',
"\tborder: 1px solid #d1d5db;",
"\tpadding: 0.6em 1em;",
"\ttext-align: left;",
'}',
'.post-content thead th {',
"\tbackground: #f3f4f6;",
"\tfont-weight: 600;",
'}',
'.post-content tbody tr:nth-child(even) {',
"\tbackground: #f9fafb;",
'}',
] );
}
return implode( "\n\n", $rules );
}
/**
* Map the stored font-family key to a full CSS font stack.
*
* Returns empty string for 'default' (let the theme decide).
*
* @return string CSS font-family value, or empty for theme default.
*/
private function get_font_family_stack(): string {
$key = sanitize_text_field( get_option( self::OPT_FONT_FAMILY, 'default' ) );
$stacks = [
'default' => '',
'inter' => '"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif',
'georgia' => '"Georgia", "Times New Roman", Times, serif',
'merriweather' => '"Merriweather", Georgia, "Times New Roman", serif',
'lora' => '"Lora", Georgia, "Times New Roman", serif',
'open_sans' => '"Open Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif',
'roboto' => '"Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif',
'system' => '-apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", sans-serif',
];
return $stacks[ $key ] ?? '';
}
/**
* Get available font choices for the settings UI.
*
* @return array Map of key => display label.
*/
public static function get_font_choices(): array {
return [
'default' => __( 'Theme Default (Inter)', 'prautoblogger' ),
'inter' => __( 'Inter (Sans-serif)', 'prautoblogger' ),
'georgia' => __( 'Georgia (Serif)', 'prautoblogger' ),
'merriweather' => __( 'Merriweather (Serif)', 'prautoblogger' ),
'lora' => __( 'Lora (Serif)', 'prautoblogger' ),
'open_sans' => __( 'Open Sans (Sans-serif)', 'prautoblogger' ),
'roboto' => __( 'Roboto (Sans-serif)', 'prautoblogger' ),
'system' => __( 'System Default', 'prautoblogger' ),
];
}
/**
* Enqueue Google Fonts stylesheet when a web font is selected.
*
* Only loads on singular PRAutoBlogger posts that use a Google-hosted font.
*
* Side effects: enqueues a remote stylesheet.
*
* @return void
*/
public function on_enqueue_fonts(): void {
if ( ! is_singular( 'post' ) ) {
return;
}
$post_id = get_queried_object_id();
if ( '1' !== get_post_meta( $post_id, '_prautoblogger_generated', true ) ) {
return;
}
$font = sanitize_text_field( get_option( self::OPT_FONT_FAMILY, 'default' ) );
// Map font keys to Google Fonts URLs. Inter is already loaded by the theme.
$google_fonts = [
'merriweather' => 'https://fonts.googleapis.com/css2?family=Merriweather:wght@400;700&display=swap',
'lora' => 'https://fonts.googleapis.com/css2?family=Lora:wght@400;700&display=swap',
'open_sans' => 'https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&display=swap',
'roboto' => 'https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap',
];
if ( isset( $google_fonts[ $font ] ) ) {
wp_enqueue_style(
'prautoblogger-google-font',
$google_fonts[ $font ],
[],
null // No version for external CDN URLs.
);
}
}
}