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<?php
class Jetpack_PWA_Helpers {
public static function get_default_manifest_icon_sizes() {
// These icon sizes based on conversation here:
// https://github.com/GoogleChrome/lighthouse/issues/291
return array(
192,
512,
);
}
public static function site_icon_url( $size = 512 ) {
$url = get_site_icon_url( $size );
// Fall back to built-in WordPress icon
if ( ! $url && in_array( $size, self::get_default_manifest_icon_sizes() ) ) {
$url = esc_url_raw(
plugins_url( "modules/pwa/images/wp-$size.png", JETPACK__PLUGIN_FILE )
);
}
return $url;
}
public static function get_theme_color() {
$theme_color = false;
// if we have AMP enabled, use those colors?
if ( class_exists( 'AMP_Customizer_Settings' ) ) {
/* This filter is documented in wp-content/plugins/amp/includes/class-amp-post-template.php */
$amp_settings = apply_filters(
'amp_post_template_customizer_settings',
AMP_Customizer_Settings::get_settings(),
null
);
if ( isset( $amp_settings['header_background_color'] ) ) {
$theme_color = $amp_settings['header_background_color'];
}
}
if ( ! $theme_color && current_theme_supports( 'custom-background' ) ) {
$background_color = get_background_color(); // Returns hex key without hash or empty string
if ( $background_color ) {
$theme_color = "#$background_color";
}
}
if ( ! $theme_color ) {
$theme_color = '#fff';
}
/**
* Allows overriding the PWA theme color which is used when loading the app.
*
* @since 5.6.0
*
* @param string $theme_color
*/
return apply_filters( 'jetpack_pwa_background_color', $theme_color );
}
}
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