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<?php
/**
* A class that adds a Blaze dashboard to wp-admin.
*
* @since 0.7.0
*
* @package automattic/jetpack-blaze
*/
namespace Automattic\Jetpack\Blaze;
use Automattic\Jetpack\Assets;
/**
* Responsible for adding a Blaze dashboard menu to wp-admin.
* The screen content itself is rendered remotely.
*/
class Dashboard {
/**
* Package version.
*
* @var string
*/
const PACKAGE_VERSION = '0.26.1';
/**
* List of dependencies needed to render the dashboard in wp-admin.
*
* @var array
*/
const JS_DEPENDENCIES = array( 'lodash', 'react', 'react-dom', 'wp-components', 'wp-compose', 'wp-i18n', 'wp-is-shallow-equal', 'wp-primitives', 'wp-url', 'moment' );
/**
* URL where we load the Blaze dashboard remotely.
*
* @var string
*/
const CDN_URL = 'https://widgets.wp.com/blaze-dashboard/%s/%s';
/**
* Script handle for the JS file we enqueue in the dashboard page.
*
* @var string
*/
const SCRIPT_HANDLE = 'jetpack-blaze-dashboard';
/**
* We bump the asset version when the Jetpack back end is not compatible anymore.
*
* @var string
*/
const BLAZEDASH_VERSION = 'v1';
/**
* Cache key for the cache buster.
*
* @var string
*/
const BLAZEDASH_CACHE_BUSTER_CACHE_KEY = 'jetpack_blaze_admin_asset_cache_buster';
/**
* Blaze dashboard admin page. Default is tools.php.
*
* @var string
*/
private $admin_page;
/**
* Blaze dashboard menu slug. Default is 'advertising'.
*
* @var string
*/
private $menu_slug;
/**
* Blaze dashboard css prefix. Default is 'jp-blaze'.
*
* @var string
*/
private $css_prefix;
/**
* Dashboard constructor.
*
* @param string $admin_page Dashboard admin page. Default is tools.php.
* @param string $menu_slug Dashboard menu slug. Default is 'advertising'.
* @param string $css_prefix Dashboard css prefix. Default is 'jp-blaze'.
*/
public function __construct( $admin_page = 'tools.php', $menu_slug = 'advertising', $css_prefix = 'jp-blaze' ) {
$this->admin_page = $admin_page;
$this->menu_slug = $menu_slug;
$this->css_prefix = $css_prefix;
}
/**
* Override render funtion
*
* @return void
*/
public function render() {
?>
<div id="wpcom" class="<?php echo esc_attr( $this->css_prefix ); ?>-dashboard" style="min-height: calc(100vh - 100px);">
<div class="hide-if-js"><?php esc_html_e( 'Your Jetpack Blaze dashboard requires JavaScript to function properly.', 'jetpack-blaze' ); ?></div>
<div class="hide-if-no-js" style="height: 100%">
<img
class="<?php echo esc_attr( $this->css_prefix ); ?>-dashboard-loading-spinner"
width="32"
height="32"
style="position: absolute; left: 50%; top: 50%;"
alt=<?php echo esc_attr( __( 'Loading', 'jetpack-blaze' ) ); ?>
src="//en.wordpress.com/i/loading/loading-64.gif"
/>
</div>
</div>
<script>
jQuery(document).ready(function($) {
// Load SVG sprite.
$.get("https://widgets.wp.com/blaze-dashboard/common/gridicons-506499ddac13811fee8e.svg", function(data) {
var div = document.createElement("div");
div.innerHTML = new XMLSerializer().serializeToString(data.documentElement);
div.style = 'display: none';
document.body.insertBefore(div, document.body.childNodes[0]);
});
// we intercept on all anchor tags and change it to hashbang style.
$("#wpcom").on('click', 'a', function (e) {
const link = e && e.currentTarget && e.currentTarget.attributes && e.currentTarget.attributes.href && e.currentTarget.attributes.href.value;
if (link && link.startsWith( '/<?php echo esc_attr( $this->menu_slug ); ?>' ) ) {
location.hash = `#!${link}`;
return false;
}
});
});
</script>
<?php
}
/**
* Initialize the admin resources.
*/
public function admin_init() {
add_action( 'admin_enqueue_scripts', array( $this, 'load_admin_scripts' ) );
}
/**
* Load the admin scripts.
*
* @param string $hook The current admin page.
*/
public function load_admin_scripts( $hook ) {
if ( ! str_ends_with( $hook, 'page_' . $this->menu_slug ) ) {
return;
}
$asset_handle = self::SCRIPT_HANDLE;
$asset_name = 'build.min';
$dashboard_config = new Dashboard_Config_Data( $this->admin_page, $this->menu_slug );
$config_data = $dashboard_config->get_data();
if ( file_exists( __DIR__ . "/../dist/{$asset_name}.js" ) ) {
// Load local assets for the convenience of development.
Assets::register_script(
$asset_handle,
"../dist/{$asset_name}.js",
__FILE__,
array(
'enqueue' => true,
'in_footer' => true,
'textdomain' => 'jetpack-blaze',
)
);
} else {
$css_url = $asset_name . ( is_rtl() ? '.rtl' : '' ) . '.css';
$css_handle = $asset_handle . '-style';
wp_enqueue_script(
$asset_handle,
sprintf( self::CDN_URL, self::BLAZEDASH_VERSION, "{$asset_name}.js" ),
self::JS_DEPENDENCIES,
$this->get_cdn_asset_cache_buster(),
true
);
wp_enqueue_style(
$css_handle,
sprintf( self::CDN_URL, self::BLAZEDASH_VERSION, $css_url ),
array(),
$this->get_cdn_asset_cache_buster()
);
}
wp_add_inline_script(
$asset_handle,
$dashboard_config->get_js_config_data( $config_data ),
'before'
);
}
/**
* Returns cache buster string for assets.
* Development mode doesn't need this, as it's handled by `Assets` class.
*/
protected function get_cdn_asset_cache_buster() {
// Use cached cache buster in production.
$remote_asset_version = get_transient( self::BLAZEDASH_CACHE_BUSTER_CACHE_KEY );
if ( ! empty( $remote_asset_version ) ) {
return $remote_asset_version;
}
// If no cached cache buster, we fetch it from CDN and set to transient.
$response = wp_remote_get( sprintf( self::CDN_URL, self::BLAZEDASH_VERSION, 'build_meta.json' ), array( 'timeout' => 5 ) );
if ( is_wp_error( $response ) ) {
// fallback to the package version.
return self::PACKAGE_VERSION;
}
$build_meta = json_decode( wp_remote_retrieve_body( $response ), true );
if ( ! empty( $build_meta['cache_buster'] ) ) {
// Cache the cache buster for 15 mins.
set_transient( self::BLAZEDASH_CACHE_BUSTER_CACHE_KEY, $build_meta['cache_buster'], 15 * MINUTE_IN_SECONDS );
return $build_meta['cache_buster'];
}
// fallback to the package version.
return self::PACKAGE_VERSION;
}
}