<?php
/**
* Script Modules API: WP_Script_Modules class.
*
* Native support for ES Modules and Import Maps.
*
* @package WordPress
* @subpackage Script Modules
*/
/**
* Core class used to register script modules.
*
* @since 6.5.0
*/
class WP_Script_Modules {
/**
* Holds the registered script modules, keyed by script module identifier.
*
* @since 6.5.0
* @var array[]
*/
private $registered = array();
/**
* Holds the script module identifiers that were enqueued before registered.
*
* @since 6.5.0
* @var array<string, true>
*/
private $enqueued_before_registered = array();
/**
* Tracks whether the @wordpress/a11y script module is available.
*
* Some additional HTML is required on the page for the module to work. Track
* whether it's available to print at the appropriate time.
*
* @since 6.7.0
* @var bool
*/
private $a11y_available = false;
/**
* Registers the script module if no script module with that script module
* identifier has already been registered.
*
* @since 6.5.0
*
* @param string $id The identifier of the script module. Should be unique. It will be used in the
* final import map.
* @param string $src Optional. Full URL of the script module, or path of the script module relative
* to the WordPress root directory. If it is provided and the script module has
* not been registered yet, it will be registered.
* @param array $deps {
* Optional. List of dependencies.
*
* @type string|array ...$0 {
* An array of script module identifiers of the dependencies of this script
* module. The dependencies can be strings or arrays. If they are arrays,
* they need an `id` key with the script module identifier, and can contain
* an `import` key with either `static` or `dynamic`. By default,
* dependencies that don't contain an `import` key are considered static.
*
* @type string $id The script module identifier.
* @type string $import Optional. Import type. May be either `static` or
* `dynamic`. Defaults to `static`.
* }
* }
* @param string|false|null $version Optional. String specifying the script module version number. Defaults to false.
* It is added to the URL as a query string for cache busting purposes. If $version
* is set to false, the version number is the currently installed WordPress version.
* If $version is set to null, no version is added.
*/
public function register( string $id, string $src, array $deps = array(), $version = false ) {
if ( ! isset( $this->registered[ $id ] ) ) {
$dependencies = array();
foreach ( $deps as $dependency ) {
if ( is_array( $dependency ) ) {
if ( ! isset( $dependency['id'] ) ) {
_doing_it_wrong( __METHOD__, __( 'Missing required id key in entry among dependencies array.' ), '6.5.0' );
continue;
}
$dependencies[] = array(
'id' => $dependency['id'],
'import' => isset( $dependency['import'] ) && 'dynamic' === $dependency['import'] ? 'dynamic' : 'static',
);
} elseif ( is_string( $dependency ) ) {
$dependencies[] = array(
'id' => $dependency,
'import' => 'static',
);
} else {
_doing_it_wrong( __METHOD__, __( 'Entries in dependencies array must be either strings or arrays with an id key.' ), '6.5.0' );
}
}
$this->registered[ $id ] = array(
'src' => $src,
'version' => $version,
'enqueue' => isset( $this->enqueued_before_registered[ $id ] ),
'dependencies' => $dependencies,
);
}
}
/**
* Marks the script module to be enqueued in the page.
*
* If a src is provided and the script module has not been registered yet, it
* will be registered.
*
* @since 6.5.0
*
* @param string $id The identifier of the script module. Should be unique. It will be used in the
* final import map.
* @param string $src Optional. Full URL of the script module, or path of the script module relative
* to the WordPress root directory. If it is provided and the script module has
* not been registered yet, it will be registered.
* @param array $deps {
* Optional. List of dependencies.
*
* @type string|array ...$0 {
* An array of script module identifiers of the dependencies of this script
* module. The dependencies can be strings or arrays. If they are arrays,
* they need an `id` key with the script module identifier, and can contain
* an `import` key with either `static` or `dynamic`. By default,
* dependencies that don't contain an `import` key are considered static.
*
* @type string $id The script module identifier.
* @type string $import Optional. Import type. May be either `static` or
* `dynamic`. Defaults to `static`.
* }
* }
* @param string|false|null $version Optional. String specifying the script module version number. Defaults to false.
* It is added to the URL as a query string for cache busting purposes. If $version
* is set to false, the version number is the currently installed WordPress version.
* If $version is set to null, no version is added.
*/
public function enqueue( string $id, string $src = '', array $deps = array(), $version = false ) {
if ( isset( $this->registered[ $id ] ) ) {
$this->registered[ $id ]['enqueue'] = true;
} elseif ( $src ) {
$this->register( $id, $src, $deps, $version );
$this->registered[ $id ]['enqueue'] = true;
} else {
$this->enqueued_before_registered[ $id ] = true;
}
}
/**
* Unmarks the script module so it will no longer be enqueued in the page.
*
* @since 6.5.0
*
* @param string $id The identifier of the script module.
*/
public function dequeue( string $id ) {
if ( isset( $this->registered[ $id ] ) ) {
$this->registered[ $id ]['enqueue'] = false;
}
unset( $this->enqueued_before_registered[ $id ] );
}
/**
* Removes a registered script module.
*
* @since 6.5.0
*
* @param string $id The identifier of the script module.
*/
public function deregister( string $id ) {
unset( $this->registered[ $id ] );
unset( $this->enqueued_before_registered[ $id ] );
}
/**
* Adds the hooks to print the import map, enqueued script modules and script
* module preloads.
*
* In classic themes, the script modules used by the blocks are not yet known
* when the `wp_head` actions is fired, so it needs to print everything in the
* footer.
*
* @since 6.5.0
*/
public function add_hooks() {
$position = wp_is_block_theme() ? 'wp_head' : 'wp_footer';
add_action( $position, array( $this, 'print_import_map' ) );
add_action( $position, array( $this, 'print_enqueued_script_modules' ) );
add_action( $position, array( $this, 'print_script_module_preloads' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_import_map' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_enqueued_script_modules' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_preloads' ) );
add_action( 'wp_footer', array( $this, 'print_script_module_data' ) );
add_action( 'admin_print_footer_scripts', array( $this, 'print_script_module_data' ) );
add_action( 'wp_footer', array( $this, 'print_a11y_script_module_html' ), 20 );
add_action( 'admin_print_footer_scripts', array( $this, 'print_a11y_script_module_html' ), 20 );
}
/**
* Prints the enqueued script modules using script tags with type="module"
* attributes.
*
* @since 6.5.0
*/
public function print_enqueued_script_modules() {
foreach ( $this->get_marked_for_enqueue() as $id => $script_module ) {
wp_print_script_tag(
array(
'type' => 'module',
'src' => $this->get_src( $id ),
'id' => $id . '-js-module',
)
);
}
}
/**
* Prints the the static dependencies of the enqueued script modules using
* link tags with rel="modulepreload" attributes.
*
* If a script module is marked for enqueue, it will not be preloaded.
*
* @since 6.5.0
*/
public function print_script_module_preloads() {
foreach ( $this->get_dependencies( array_keys( $this->get_marked_for_enqueue() ), array( 'static' ) ) as $id => $script_module ) {
// Don't preload if it's marked for enqueue.
if ( true !== $script_module['enqueue'] ) {
echo sprintf(
'<link rel="modulepreload" href="%s" id="%s">',
esc_url( $this->get_src( $id ) ),
esc_attr( $id . '-js-modulepreload' )
);
}
}
}
/**
* Prints the import map using a script tag with a type="importmap" attribute.
*
* @since 6.5.0
*/
public function print_import_map() {
$import_map = $this->get_import_map();
if ( ! empty( $import_map['imports'] ) ) {
wp_print_inline_script_tag(
wp_json_encode( $import_map, JSON_HEX_TAG | JSON_HEX_AMP ),
array(
'type' => 'importmap',
'id' => 'wp-importmap',
)
);
}
}
/**
* Returns the import map array.
*
* @since 6.5.0
*
* @return array Array with an `imports` key mapping to an array of script module identifiers and their respective
* URLs, including the version query.
*/
private function get_import_map(): array {
$imports = array();
foreach ( $this->get_dependencies( array_keys( $this->get_marked_for_enqueue() ) ) as $id => $script_module ) {
$imports[ $id ] = $this->get_src( $id );
}
return array( 'imports' => $imports );
}
/**
* Retrieves the list of script modules marked for enqueue.
*
* @since 6.5.0
*
* @return array[] Script modules marked for enqueue, keyed by script module identifier.
*/
private function get_marked_for_enqueue(): array {
$enqueued = array();
foreach ( $this->registered as $id => $script_module ) {
if ( true === $script_module['enqueue'] ) {
$enqueued[ $id ] = $script_module;
}
}
return $enqueued;
}
/**
* Retrieves all the dependencies for the given script module identifiers,
* filtered by import types.
*
* It will consolidate an array containing a set of unique dependencies based
* on the requested import types: 'static', 'dynamic', or both. This method is
* recursive and also retrieves dependencies of the dependencies.
*
* @since 6.5.0
*
* @param string[] $ids The identifiers of the script modules for which to gather dependencies.
* @param string[] $import_types Optional. Import types of dependencies to retrieve: 'static', 'dynamic', or both.
* Default is both.
* @return array[] List of dependencies, keyed by script module identifier.
*/
private function get_dependencies( array $ids, array $import_types = array( 'static', 'dynamic' ) ) {
return array_reduce(
$ids,
function ( $dependency_script_modules, $id ) use ( $import_types ) {
$dependencies = array();
foreach ( $this->registered[ $id ]['dependencies'] as $dependency ) {
if (
in_array( $dependency['import'], $import_types, true ) &&
isset( $this->registered[ $dependency['id'] ] ) &&
! isset( $dependency_script_modules[ $dependency['id'] ] )
) {
$dependencies[ $dependency['id'] ] = $this->registered[ $dependency['id'] ];
}
}
return array_merge( $dependency_script_modules, $dependencies, $this->get_dependencies( array_keys( $dependencies ), $import_types ) );
},
array()
);
}
/**
* Gets the versioned URL for a script module src.
*
* If $version is set to false, the version number is the currently installed
* WordPress version. If $version is set to null, no version is added.
* Otherwise, the string passed in $version is used.
*
* @since 6.5.0
*
* @param string $id The script module identifier.
* @return string The script module src with a version if relevant.
*/
private function get_src( string $id ): string {
if ( ! isset( $this->registered[ $id ] ) ) {
return '';
}
$script_module = $this->registered[ $id ];
$src = $script_module['src'];
if ( false === $script_module['version'] ) {
$src = add_query_arg( 'ver', get_bloginfo( 'version' ), $src );
} elseif ( null !== $script_module['version'] ) {
$src = add_query_arg( 'ver', $script_module['version'], $src );
}
/**
* Filters the script module source.
*
* @since 6.5.0
*
* @param string $src Module source URL.
* @param string $id Module identifier.
*/
$src = apply_filters( 'script_module_loader_src', $src, $id );
return $src;
}
/**
* Print data associated with Script Modules.
*
* The data will be embedded in the page HTML and can be read by Script Modules on page load.
*
* @since 6.7.0
*
* Data can be associated with a Script Module via the
* {@see "script_module_data_{$module_id}"} filter.
*
* The data for a Script Module will be serialized as JSON in a script tag with an ID of the
* form `wp-script-module-data-{$module_id}`.
*/
public function print_script_module_data(): void {
$modules = array();
foreach ( array_keys( $this->get_marked_for_enqueue() ) as $id ) {
if ( '@wordpress/a11y' === $id ) {
$this->a11y_available = true;
}
$modules[ $id ] = true;
}
foreach ( array_keys( $this->get_import_map()['imports'] ) as $id ) {
if ( '@wordpress/a11y' === $id ) {
$this->a11y_available = true;
}
$modules[ $id ] = true;
}
foreach ( array_keys( $modules ) as $module_id ) {
/**
* Filters data associated with a given Script Module.
*
* Script Modules may require data that is required for initialization or is essential
* to have immediately available on page load. These are suitable use cases for
* this data.
*
* The dynamic portion of the hook name, `$module_id`, refers to the Script Module ID
* that the data is associated with.
*
* This is best suited to pass essential data that must be available to the module for
* initialization or immediately on page load. It does not replace the REST API or
* fetching data from the client.
*
* Example:
*
* add_filter(
* 'script_module_data_MyScriptModuleID',
* function ( array $data ): array {
* $data['dataForClient'] = 'ok';
* return $data;
* }
* );
*
* If the filter returns no data (an empty array), nothing will be embedded in the page.
*
* The data for a given Script Module, if provided, will be JSON serialized in a script
* tag with an ID of the form `wp-script-module-data-{$module_id}`.
*
* The data can be read on the client with a pattern like this:
*
* Example:
*
* const dataContainer = document.getElementById( 'wp-script-module-data-MyScriptModuleID' );
* let data = {};
* if ( dataContainer ) {
* try {
* data = JSON.parse( dataContainer.textContent );
* } catch {}
* }
* // data.dataForClient === 'ok';
* initMyScriptModuleWithData( data );
*
* @since 6.7.0
*
* @param array $data The data associated with the Script Module.
*/
$data = apply_filters( "script_module_data_{$module_id}", array() );
if ( is_array( $data ) && array() !== $data ) {
/*
* This data will be printed as JSON inside a script tag like this:
* <script type="application/json"></script>
*
* A script tag must be closed by a sequence beginning with `</`. It's impossible to
* close a script tag without using `<`. We ensure that `<` is escaped and `/` can
* remain unescaped, so `</script>` will be printed as `\u003C/script\u00E3`.
*
* - JSON_HEX_TAG: All < and > are converted to \u003C and \u003E.
* - JSON_UNESCAPED_SLASHES: Don't escape /.
*
* If the page will use UTF-8 encoding, it's safe to print unescaped unicode:
*
* - JSON_UNESCAPED_UNICODE: Encode multibyte Unicode characters literally (instead of as `\uXXXX`).
* - JSON_UNESCAPED_LINE_TERMINATORS: The line terminators are kept unescaped when
* JSON_UNESCAPED_UNICODE is supplied. It uses the same behaviour as it was
* before PHP 7.1 without this constant. Available as of PHP 7.1.0.
*
* The JSON specification requires encoding in UTF-8, so if the generated HTML page
* is not encoded in UTF-8 then it's not safe to include those literals. They must
* be escaped to avoid encoding issues.
*
* @see https://www.rfc-editor.org/rfc/rfc8259.html for details on encoding requirements.
* @see https://www.php.net/manual/en/json.constants.php for details on these constants.
* @see https://html.spec.whatwg.org/#script-data-state for details on script tag parsing.
*/
$json_encode_flags = JSON_HEX_TAG | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_LINE_TERMINATORS;
if ( ! is_utf8_charset() ) {
$json_encode_flags = JSON_HEX_TAG | JSON_UNESCAPED_SLASHES;
}
wp_print_inline_script_tag(
wp_json_encode(
$data,
$json_encode_flags
),
array(
'type' => 'application/json',
'id' => "wp-script-module-data-{$module_id}",
)
);
}
}
}
/**
* @access private This is only intended to be called by the registered actions.
*
* @since 6.7.0
*/
public function print_a11y_script_module_html() {
if ( ! $this->a11y_available ) {
return;
}
echo '<div style="position:absolute;margin:-1px;padding:0;height:1px;width:1px;overflow:hidden;clip-path:inset(50%);border:0;word-wrap:normal !important;">'
. '<p id="a11y-speak-intro-text" class="a11y-speak-intro-text" hidden>' . esc_html__( 'Notifications' ) . '</p>'
. '<div id="a11y-speak-assertive" class="a11y-speak-region" aria-live="assertive" aria-relevant="additions text" aria-atomic="true"></div>'
. '<div id="a11y-speak-polite" class="a11y-speak-region" aria-live="polite" aria-relevant="additions text" aria-atomic="true"></div>'
. '</div>';
}
}
بدأت المصانع ان تستخدم طفرة في عالم الذكاء الاصطناعي ” الروبوتس” ، من الممكن ان يحدث سرعة في الإنتاج لكن هل يمكن الاستغناء عن البشر ؟
قال” ا/ عماد برتي ” صاحب مصنع ” hummer ” للأدوات المنزلية ان الروبوت يعمل بدقة وسرعة ثابتة ، وهذا يساعد في تقليل زمن الدورة الإنتاجية وزيادة الإنتاجية الكلية للمصنع ، واكد علي ان استخدام الروبوتات يساعد في تقليل التكاليف التشغيلية من خلال تقليل الاستهلاك في الطاقة الخامات، والعمالة، اما عن فرصة الأعطال المفاجئة فهي قليلة ، لأن الروبوتات تعمل بتتابع منتظم أيضا يتم مراقبتها بسهولة
كما انه تحدث عن فرص العمل بالنسبة للأشخاص مشيرا الي ان الروبوتات ستخلق فرص عمل جديدة في مجالات مثل برمجة روبوتات الصيانة، وقال “السوق بحاجة إلى عمالة مؤهلة أكثر من قبل”
كما تحدث عن أهمية وجود نظام صيانة دوري، وفريق فني مؤهل يمكنه التدخل بسرعة، أيضًا يجب أن يكون هناك قطع غيار جاهزة، ونظام مراقبة ذكي ينبهنا بالعطلة في البداية لسرعة التصرف.
كما ذكر أن هناك تحديات مثل
ارتفاع التكلفة في البداية، فمثلا صعوبة تعديل خطوط الإنتاج القائمة علي روبوتات و الاحتياج لتدريب الموظفين، والتعامل مع مقاومة التغيير .
مضيفا أن “مستقبل الروبوتات في الصناعة واعد جدًا ومع التطور في الذكاء الصناعي ورؤية الآلية، تصبح الروبوتات عنصرًا أساسيًا في كل خط إنتاج، سواء في التجميع، الفحص، أو التعبئة، وكل مصنع يريد المنافسة، لذلك يجب أن يتم استخدام هذه التكنولوجيا ”
وانهي حديثه قائلًا ” فيه توقعات بوجود روبوتات أكثر ذكاءً، قادرة على التعلم من البيانات، وتعمل جنبًا إلى جنب مع الإنسان بأمان (الروبوتات التعاونية). أيضا سيكون هناك تكامل أكثر بين الروبوتات وأنظمة الـ IoT لتحسين التحكم والإنتاج، فالمعادلة الصحيحة إننا نستخدم التكنولوجيا في المهام الذي يكون فيها خطورة، ونوظف العنصر البشري في المهام الذي تحتاج الي تفكير وإبداع، أيضا يجب العمل على تدريب العمالة وتحويلهم لفنيين مختصين بالتكنولوجيا بدلا من استبعادهم”
