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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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| Current Path : /var/www/web28/html/wp-content/themes/Avada/includes/ |
| Current File : //var/www/web28/html/wp-content/themes/Avada/includes/class-avada-pwa.php |
<?php
/**
* Handles PWA implementation.
*
* @author ThemeFusion
* @copyright (c) Copyright by ThemeFusion
* @link https://avada.com
* @package Avada
* @subpackage Core
* @since 5.8
*/
/**
* Handle PWA implementation.
*
* @since 5.8
*/
class Avada_PWA {
/**
* The filetypes.
*
* @access private
* @since 5.8
* @var array
*/
private $filetypes;
/**
* Cache-first items.
*
* @access private
* @since 5.8
* @var array
*/
private $cache_first = [];
/**
* Network-first items.
*
* @access private
* @since 5.8
* @var array
*/
private $network_first = [];
/**
* Stale-while-revalidate items.
*
* @access private
* @since 5.8
* @var array
*/
private $stale_while_revalidate = [];
/**
* The default manifest icon sizes.
*
* Copied from Jetpack_PWA_Helpers::get_default_manifest_icon_sizes().
* Based on a conversation in https://github.com/GoogleChrome/lighthouse/issues/291
*
* @access private
* @since 5.8
* @var int[]
*/
public $default_manifest_icon_sizes = [ 192, 512 ];
/**
* The class constructor.
*
* @access public
* @since 5.8
*/
public function __construct() {
// Exit early if we've disabled PWA.
$pwa_enabled = Fusion_Settings::get_instance()->get( 'pwa_enable' );
if ( true !== $pwa_enabled && '1' !== $pwa_enabled ) {
return;
}
// Only run on the frontend.
if ( ! is_admin() ) {
$this->set_policies();
$this->add_service_workers();
// Filter the webapp manifest.
add_filter( 'web_app_manifest', [ $this, 'web_app_manifest' ] );
add_filter( 'option_site_icon', [ $this, 'site_icon' ] );
}
add_filter( 'wp_service_worker_integrations_enabled', '__return_true' );
// This filter is not necessary in PWA plugin versions greater than 0.3.
// If site is using an older PWA version add the filter.
if ( ! defined( 'PWA_VERSION' ) || version_compare( PWA_VERSION, '0.3.0' ) < 0 ) {
add_filter( 'wp_service_worker_navigation_preload', '__return_false' );
}
// Add theme-support for theme-color.
$this->add_theme_supports();
}
/**
* Applies tweaks for the web-app manifest.
*
* @access public
* @since 5.8
* @param array $manifest The webapp manifest as an array.
* @return array
*/
public function web_app_manifest( $manifest ) {
$settings = Fusion_Settings::get_instance();
// Page background used as background_color.
$background = $settings->get( 'bg_color' );
if ( $background ) {
$manifest['background_color'] = Fusion_Color::new_color( $background )->get_new( 'alpha', 1 )->to_css( 'hex' );
}
// Display mode.
$display = $settings->get( 'pwa_manifest_display' );
if ( $display ) {
$manifest['display'] = $display;
}
// Icons.
$manifest_icons = $this->get_icons();
if ( $manifest_icons ) {
$manifest['icons'] = $manifest_icons;
}
// Fix for start_url.
if ( get_home_url() === $manifest['start_url'] ) {
$manifest['start_url'] = trailingslashit( $manifest['start_url'] );
}
return $manifest;
}
/**
* Filter the 'site_icon' option.
* The value of site_icon is used by wp-core to generate the 'apple-touch-icon' meta in <head>.
*
* @access public
* @since 5.8.1
* @param int $id The attachment ID.
* @return int
*/
public function site_icon( $id ) {
if ( ! $id ) {
return (int) $this->get_site_icon_id();
}
return $id;
}
/**
* Return an array containing file-types that admins can choose.
*
* @access public
* @since 5.8
* @return array
*/
public function get_filetypes() {
if ( ! $this->filetypes ) {
$this->filetypes = apply_filters(
'avada_pwa_filetypes',
[
'images' => [
'label' => esc_html__( 'Images', 'Avada' ),
'rule' => '^https\:\/\/.*\.(?:png|gif|jpg|jpeg|svg|webp)(\?.*)?$',
'args' => [
'cacheName' => 'fusion_all_images',
'plugins' => [
'expiration' => [
'maxEntries' => 60,
'maxAgeSeconds' => MONTH_IN_SECONDS,
'purgeOnQuotaError' => true,
],
],
],
],
'fonts' => [
'label' => esc_html__( 'Fonts', 'Avada' ),
'rule' => '(^https\:\/\/.*(?:googleapis|gstatic)\.com\/.*)|(^https\:\/\/.*\.(?:woff|woff2|ttf|eot)(\?.*)?$)',
'args' => [
'cacheName' => 'fusion_all_fonts',
'plugins' => [
'expiration' => [
'maxEntries' => 60,
'maxAgeSeconds' => MONTH_IN_SECONDS,
'purgeOnQuotaError' => true,
],
],
],
],
'scripts' => [
'label' => esc_html__( 'Scripts', 'Avada' ),
'rule' => '^https\:\/\/.*\.(?:js)(\?.*)?$',
'args' => [
'cacheName' => 'fusion_all_scripts',
'plugins' => [
'expiration' => [
'maxEntries' => 60,
'maxAgeSeconds' => MONTH_IN_SECONDS,
'purgeOnQuotaError' => true,
],
],
],
],
'styles' => [
'label' => esc_html__( 'Styles', 'Avada' ),
'rule' => '^https\:\/\/.*\.(?:css)(\?.*)?$',
'args' => [
'cacheName' => 'fusion_all_styles',
'plugins' => [
'expiration' => [
'maxEntries' => 60,
'maxAgeSeconds' => MONTH_IN_SECONDS,
'purgeOnQuotaError' => true,
],
],
],
],
/**
* Disable caching the content.
* This causes the login page to become inoperable
* and causes random refreshes.
*
'content' => array(
'label' => esc_html__( 'Content', 'Avada' ),
'rule' => null,
'args' => array(
'cacheName' => 'fusion_all_content',
'plugins' => array(
'expiration' => array(
'maxEntries' => 60,
'maxAgeSeconds' => DAY_IN_SECONDS,
'purgeOnQuotaError' => true,
),
),
),
),
*/
]
);
}
return $this->filetypes;
}
/**
* Set the policy for filetypes.
*
* @access private
* @since 5.8
* @return void
*/
private function set_policies() {
$all_filetypes = $this->get_filetypes();
$cache_first = (array) Fusion_Settings::get_instance()->get( 'pwa_filetypes_cache_first' );
$network_first = (array) Fusion_Settings::get_instance()->get( 'pwa_filetypes_network_first' );
$stale_while_revalidate = (array) Fusion_Settings::get_instance()->get( 'pwa_filetypes_stale_while_revalidate' );
foreach ( $cache_first as $filetype ) {
// Make sure the filetype is defined before adding it.
if ( $filetype && isset( $all_filetypes[ $filetype ] ) ) {
$this->cache_first[] = $filetype;
}
}
foreach ( $stale_while_revalidate as $filetype ) {
// Make sure the filetype is defined before adding it.
if ( $filetype && isset( $all_filetypes[ $filetype ] ) ) {
$this->stale_while_revalidate[] = $filetype;
}
}
foreach ( $network_first as $filetype ) {
// Make sure the filetype is defined before adding it.
if ( $filetype && isset( $all_filetypes[ $filetype ] ) ) {
$this->network_first[] = $filetype;
}
}
}
/**
* Adds the service-workers.
*
* @access private
* @since 5.8
* @return void
*/
private function add_service_workers() {
global $wp;
// Exit early if we don't have what we need.
if ( ! function_exists( 'wp_register_service_worker_caching_route' ) || ! class_exists( 'WP_Service_Worker_Caching_Routes' ) ) {
return;
}
// Get all filetypes. We'll use this to get the rules and arguments for each item.
$all_filetypes = $this->get_filetypes();
foreach ( $all_filetypes as $key => $args ) {
// Get the strategy we want for this item.
$strategy = false;
if ( in_array( $key, $this->cache_first, true ) ) {
$strategy = WP_Service_Worker_Caching_Routes::STRATEGY_CACHE_FIRST;
} elseif ( in_array( $key, $this->stale_while_revalidate, true ) ) {
$strategy = WP_Service_Worker_Caching_Routes::STRATEGY_STALE_WHILE_REVALIDATE;
} elseif ( in_array( $key, $this->network_first, true ) ) {
$strategy = WP_Service_Worker_Caching_Routes::STRATEGY_NETWORK_FIRST;
}
// If we have no strategy then we don't want to cache this item. Early exit.
if ( false === $strategy ) {
continue;
}
// If we want to cache the content we don't have any rule, use the current URL.
if ( 'content' === $key ) {
$args['rule'] = preg_quote( home_url( $wp->request ), '/' );
}
wp_register_service_worker_caching_route(
$args['rule'],
array_merge(
$args['args'],
[
'strategy' => $strategy,
]
)
);
}
}
/**
* Changes the logo ID retrieved and used by the manifest.
*
* @access public
* @since 5.8
* @return int
*/
public function get_site_icon_id() {
$logo = Fusion_Settings::get_instance()->get( 'pwa_manifest_logo' );
if ( is_array( $logo ) && isset( $logo['id'] ) ) {
return (int) $logo['id'];
}
return 0;
}
/**
* Gets the manifest icons.
*
* Mainly copied from Jetpack_PWA_Manifest::build_icon_object() and Jetpack_PWA_Helpers::site_icon_url().
*
* @access private
* @since 5.8
* @return array|null $icon_object An array of icons, or null if there's no site icon.
*/
private function get_icons() {
$site_icon_id = $this->get_site_icon_id();
if ( ! $site_icon_id ) {
return null;
}
$icons = [];
$mime_type = get_post_mime_type( $site_icon_id );
foreach ( $this->default_manifest_icon_sizes as $size ) {
$size_data = ( $size >= 512 ) ? 'full' : [ $size, $size ];
$icons[] = [
'src' => wp_get_attachment_image_url( $site_icon_id, $size_data ),
'sizes' => sprintf( '%1$dx%1$d', $size ),
'type' => $mime_type,
];
}
return $icons;
}
/**
* Adds theme support.
*
* @access public
* @since 5.9.1
* @return void
*/
public function add_theme_supports() {
// Add support for service-worker.
add_theme_support( 'service_worker', true );
// Add support for theme-color.
$settings = Fusion_Settings::get_instance();
$color = $settings->get( 'pwa_theme_color' );
if ( $color ) {
// Make sure it's a HEX color.
// manifests and theme-color metas don't always work with rgba.
$color = Fusion_Color::new_color( $color )->get_new( 'alpha', 1 )->to_css( 'hex' );
add_theme_support( 'theme-color', $color );
}
}
}
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