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/home/tahkoom/public_html/wp-admin/includes/class-theme-upgrader.php
<?php
/**
* Upgrade API: Theme_Upgrader class
*
* @package WordPress
* @subpackage Upgrader
* @since 4.6.0
*/
/**
* Core class used for upgrading/installing themes.
*
* It is designed to upgrade/install themes from a local zip, remote zip URL,
* or uploaded zip file.
*
* @since 2.8.0
* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
*
* @see WP_Upgrader
*/
class Theme_Upgrader extends WP_Upgrader {
/**
* Result of the theme upgrade offer.
*
* @since 2.8.0
* @var array|WP_Error $result
* @see WP_Upgrader::$result
*/
public $result;
/**
* Whether multiple themes are being upgraded/installed in bulk.
*
* @since 2.9.0
* @var bool $bulk
*/
public $bulk = false;
/**
* New theme info.
*
* @since 5.5.0
* @var array $new_theme_data
*
* @see check_package()
*/
public $new_theme_data = array();
/**
* Initializes the upgrade strings.
*
* @since 2.8.0
*/
public function upgrade_strings() {
$this->strings['up_to_date'] = __( 'The theme is at the latest version.' );
$this->strings['no_package'] = __( 'Update package not available.' );
/* translators: %s: Package URL. */
$this->strings['downloading_package'] = sprintf( __( 'Downloading update from %s…' ), '<span class="code pre">%s</span>' );
$this->strings['unpack_package'] = __( 'Unpacking the update…' );
$this->strings['remove_old'] = __( 'Removing the old version of the theme…' );
$this->strings['remove_old_failed'] = __( 'Could not remove the old theme.' );
$this->strings['process_failed'] = __( 'Theme update failed.' );
$this->strings['process_success'] = __( 'Theme updated successfully.' );
}
/**
* Initializes the installation strings.
*
* @since 2.8.0
*/
public function install_strings() {
$this->strings['no_package'] = __( 'Installation package not available.' );
/* translators: %s: Package URL. */
$this->strings['downloading_package'] = sprintf( __( 'Downloading installation package from %s…' ), '<span class="code pre">%s</span>' );
$this->strings['unpack_package'] = __( 'Unpacking the package…' );
$this->strings['installing_package'] = __( 'Installing the theme…' );
$this->strings['remove_old'] = __( 'Removing the old version of the theme…' );
$this->strings['remove_old_failed'] = __( 'Could not remove the old theme.' );
$this->strings['no_files'] = __( 'The theme contains no files.' );
$this->strings['process_failed'] = __( 'Theme installation failed.' );
$this->strings['process_success'] = __( 'Theme installed successfully.' );
/* translators: 1: Theme name, 2: Theme version. */
$this->strings['process_success_specific'] = __( 'Successfully installed the theme <strong>%1$s %2$s</strong>.' );
$this->strings['parent_theme_search'] = __( 'This theme requires a parent theme. Checking if it is installed…' );
/* translators: 1: Theme name, 2: Theme version. */
$this->strings['parent_theme_prepare_install'] = __( 'Preparing to install <strong>%1$s %2$s</strong>…' );
/* translators: 1: Theme name, 2: Theme version. */
$this->strings['parent_theme_currently_installed'] = __( 'The parent theme, <strong>%1$s %2$s</strong>, is currently installed.' );
/* translators: 1: Theme name, 2: Theme version. */
$this->strings['parent_theme_install_success'] = __( 'Successfully installed the parent theme, <strong>%1$s %2$s</strong>.' );
/* translators: %s: Theme name. */
$this->strings['parent_theme_not_found'] = sprintf( __( '<strong>The parent theme could not be found.</strong> You will need to install the parent theme, %s, before you can use this child theme.' ), '<strong>%s</strong>' );
/* translators: %s: Theme error. */
$this->strings['current_theme_has_errors'] = __( 'The active theme has the following error: "%s".' );
if ( ! empty( $this->skin->overwrite ) ) {
if ( 'update-theme' === $this->skin->overwrite ) {
$this->strings['installing_package'] = __( 'Updating the theme…' );
$this->strings['process_failed'] = __( 'Theme update failed.' );
$this->strings['process_success'] = __( 'Theme updated successfully.' );
}
if ( 'downgrade-theme' === $this->skin->overwrite ) {
$this->strings['installing_package'] = __( 'Downgrading the theme…' );
$this->strings['process_failed'] = __( 'Theme downgrade failed.' );
$this->strings['process_success'] = __( 'Theme downgraded successfully.' );
}
}
}
/**
* Checks if a child theme is being installed and its parent also needs to be installed.
*
* Hooked to the {@see 'upgrader_post_install'} filter by Theme_Upgrader::install().
*
* @since 3.4.0
*
* @param bool $install_result
* @param array $hook_extra
* @param array $child_result
* @return bool
*/
public function check_parent_theme_filter( $install_result, $hook_extra, $child_result ) {
// Check to see if we need to install a parent theme.
$theme_info = $this->theme_info();
if ( ! $theme_info->parent() ) {
return $install_result;
}
$this->skin->feedback( 'parent_theme_search' );
if ( ! $theme_info->parent()->errors() ) {
$this->skin->feedback( 'parent_theme_currently_installed', $theme_info->parent()->display( 'Name' ), $theme_info->parent()->display( 'Version' ) );
// We already have the theme, fall through.
return $install_result;
}
// We don't have the parent theme, let's install it.
$api = themes_api(
'theme_information',
array(
'slug' => $theme_info->get( 'Template' ),
'fields' => array(
'sections' => false,
'tags' => false,
),
)
); // Save on a bit of bandwidth.
if ( ! $api || is_wp_error( $api ) ) {
$this->skin->feedback( 'parent_theme_not_found', $theme_info->get( 'Template' ) );
// Don't show activate or preview actions after installation.
add_filter( 'install_theme_complete_actions', array( $this, 'hide_activate_preview_actions' ) );
return $install_result;
}
// Backup required data we're going to override:
$child_api = $this->skin->api;
$child_success_message = $this->strings['process_success'];
// Override them.
$this->skin->api = $api;
$this->strings['process_success_specific'] = $this->strings['parent_theme_install_success'];
$this->skin->feedback( 'parent_theme_prepare_install', $api->name, $api->version );
add_filter( 'install_theme_complete_actions', '__return_false', 999 ); // Don't show any actions after installing the theme.
// Install the parent theme.
$parent_result = $this->run(
array(
'package' => $api->download_link,
'destination' => get_theme_root(),
'clear_destination' => false, // Do not overwrite files.
'clear_working' => true,
)
);
if ( is_wp_error( $parent_result ) ) {
add_filter( 'install_theme_complete_actions', array( $this, 'hide_activate_preview_actions' ) );
}
// Start cleaning up after the parent's installation.
remove_filter( 'install_theme_complete_actions', '__return_false', 999 );
// Reset child's result and data.
$this->result = $child_result;
$this->skin->api = $child_api;
$this->strings['process_success'] = $child_success_message;
return $install_result;
}
/**
* Don't display the activate and preview actions to the user.
*
* Hooked to the {@see 'install_theme_complete_actions'} filter by
* Theme_Upgrader::check_parent_theme_filter() when installing
* a child theme and installing the parent theme fails.
*
* @since 3.4.0
*
* @param array $actions Preview actions.
* @return array
*/
public function hide_activate_preview_actions( $actions ) {
unset( $actions['activate'], $actions['preview'] );
return $actions;
}
/**
* Install a theme package.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
*
* @param string $package The full local path or URI of the package.
* @param array $args {
* Optional. Other arguments for installing a theme package. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the updates cache if successful.
* Default true.
* }
*
* @return bool|WP_Error True if the installation was successful, false or a WP_Error object otherwise.
*/
public function install( $package, $args = array() ) {
$defaults = array(
'clear_update_cache' => true,
'overwrite_package' => false, // Do not overwrite files.
);
$parsed_args = wp_parse_args( $args, $defaults );
$this->init();
$this->install_strings();
add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
add_filter( 'upgrader_post_install', array( $this, 'check_parent_theme_filter' ), 10, 3 );
if ( $parsed_args['clear_update_cache'] ) {
// Clear cache so wp_update_themes() knows about the new theme.
add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
}
$this->run(
array(
'package' => $package,
'destination' => get_theme_root(),
'clear_destination' => $parsed_args['overwrite_package'],
'clear_working' => true,
'hook_extra' => array(
'type' => 'theme',
'action' => 'install',
),
)
);
remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
remove_filter( 'upgrader_post_install', array( $this, 'check_parent_theme_filter' ) );
if ( ! $this->result || is_wp_error( $this->result ) ) {
return $this->result;
}
// Refresh the Theme Update information.
wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
if ( $parsed_args['overwrite_package'] ) {
/** This action is documented in wp-admin/includes/class-plugin-upgrader.php */
do_action( 'upgrader_overwrote_package', $package, $this->new_theme_data, 'theme' );
}
return true;
}
/**
* Upgrades a theme.
*
* @since 2.8.0
* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
*
* @param string $theme The theme slug.
* @param array $args {
* Optional. Other arguments for upgrading a theme. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the update cache if successful.
* Default true.
* }
* @return bool|WP_Error True if the upgrade was successful, false or a WP_Error object otherwise.
*/
public function upgrade( $theme, $args = array() ) {
$defaults = array(
'clear_update_cache' => true,
);
$parsed_args = wp_parse_args( $args, $defaults );
$this->init();
$this->upgrade_strings();
// Is an update available?
$current = get_site_transient( 'update_themes' );
if ( ! isset( $current->response[ $theme ] ) ) {
$this->skin->before();
$this->skin->set_result( false );
$this->skin->error( 'up_to_date' );
$this->skin->after();
return false;
}
$r = $current->response[ $theme ];
add_filter( 'upgrader_pre_install', array( $this, 'current_before' ), 10, 2 );
add_filter( 'upgrader_post_install', array( $this, 'current_after' ), 10, 2 );
add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ), 10, 4 );
if ( $parsed_args['clear_update_cache'] ) {
// Clear cache so wp_update_themes() knows about the new theme.
add_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9, 0 );
}
$this->run(
array(
'package' => $r['package'],
'destination' => get_theme_root( $theme ),
'clear_destination' => true,
'clear_working' => true,
'hook_extra' => array(
'theme' => $theme,
'type' => 'theme',
'action' => 'update',
'temp_backup' => array(
'slug' => $theme,
'src' => get_theme_root( $theme ),
'dir' => 'themes',
),
),
)
);
remove_action( 'upgrader_process_complete', 'wp_clean_themes_cache', 9 );
remove_filter( 'upgrader_pre_install', array( $this, 'current_before' ) );
remove_filter( 'upgrader_post_install', array( $this, 'current_after' ) );
remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ) );
if ( ! $this->result || is_wp_error( $this->result ) ) {
return $this->result;
}
wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
/*
* Ensure any future auto-update failures trigger a failure email by removing
* the last failure notification from the list when themes update successfully.
*/
$past_failure_emails = get_option( 'auto_plugin_theme_update_emails', array() );
if ( isset( $past_failure_emails[ $theme ] ) ) {
unset( $past_failure_emails[ $theme ] );
update_option( 'auto_plugin_theme_update_emails', $past_failure_emails );
}
return true;
}
/**
* Upgrades several themes at once.
*
* @since 3.0.0
* @since 3.7.0 The `$args` parameter was added, making clearing the update cache optional.
*
* @param string[] $themes Array of the theme slugs.
* @param array $args {
* Optional. Other arguments for upgrading several themes at once. Default empty array.
*
* @type bool $clear_update_cache Whether to clear the update cache if successful.
* Default true.
* }
* @return array[]|false An array of results, or false if unable to connect to the filesystem.
*/
public function bulk_upgrade( $themes, $args = array() ) {
$wp_version = wp_get_wp_version();
$defaults = array(
'clear_update_cache' => true,
);
$parsed_args = wp_parse_args( $args, $defaults );
$this->init();
$this->bulk = true;
$this->upgrade_strings();
$current = get_site_transient( 'update_themes' );
add_filter( 'upgrader_pre_install', array( $this, 'current_before' ), 10, 2 );
add_filter( 'upgrader_post_install', array( $this, 'current_after' ), 10, 2 );
add_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ), 10, 4 );
$this->skin->header();
// Connect to the filesystem first.
$res = $this->fs_connect( array( WP_CONTENT_DIR ) );
if ( ! $res ) {
$this->skin->footer();
return false;
}
$this->skin->bulk_header();
/*
* Only start maintenance mode if:
* - running Multisite and there are one or more themes specified, OR
* - a theme with an update available is currently in use.
* @todo For multisite, maintenance mode should only kick in for individual sites if at all possible.
*/
$maintenance = ( is_multisite() && ! empty( $themes ) );
foreach ( $themes as $theme ) {
$maintenance = $maintenance || get_stylesheet() === $theme || get_template() === $theme;
}
if ( $maintenance ) {
$this->maintenance_mode( true );
}
$results = array();
$this->update_count = count( $themes );
$this->update_current = 0;
foreach ( $themes as $theme ) {
++$this->update_current;
$this->skin->theme_info = $this->theme_info( $theme );
if ( ! isset( $current->response[ $theme ] ) ) {
$this->skin->set_result( true );
$this->skin->before();
$this->skin->feedback( 'up_to_date' );
$this->skin->after();
$results[ $theme ] = true;
continue;
}
// Get the URL to the zip file.
$r = $current->response[ $theme ];
if ( isset( $r['requires'] ) && ! is_wp_version_compatible( $r['requires'] ) ) {
$result = new WP_Error(
'incompatible_wp_required_version',
sprintf(
/* translators: 1: Current WordPress version, 2: WordPress version required by the new theme version. */
__( 'Your WordPress version is %1$s, however the new theme version requires %2$s.' ),
$wp_version,
$r['requires']
)
);
$this->skin->before( $result );
$this->skin->error( $result );
$this->skin->after();
} elseif ( isset( $r['requires_php'] ) && ! is_php_version_compatible( $r['requires_php'] ) ) {
$result = new WP_Error(
'incompatible_php_required_version',
sprintf(
/* translators: 1: Current PHP version, 2: PHP version required by the new theme version. */
__( 'The PHP version on your server is %1$s, however the new theme version requires %2$s.' ),
PHP_VERSION,
$r['requires_php']
)
);
$this->skin->before( $result );
$this->skin->error( $result );
$this->skin->after();
} else {
add_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
$result = $this->run(
array(
'package' => $r['package'],
'destination' => get_theme_root( $theme ),
'clear_destination' => true,
'clear_working' => true,
'is_multi' => true,
'hook_extra' => array(
'theme' => $theme,
'temp_backup' => array(
'slug' => $theme,
'src' => get_theme_root( $theme ),
'dir' => 'themes',
),
),
)
);
remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );
}
$results[ $theme ] = $result;
// Prevent credentials auth screen from displaying multiple times.
if ( false === $result ) {
break;
}
} // End foreach $themes.
$this->maintenance_mode( false );
// Refresh the Theme Update information.
wp_clean_themes_cache( $parsed_args['clear_update_cache'] );
/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
do_action(
'upgrader_process_complete',
$this,
array(
'action' => 'update',
'type' => 'theme',
'bulk' => true,
'themes' => $themes,
)
);
$this->skin->bulk_footer();
$this->skin->footer();
// Cleanup our hooks, in case something else does an upgrade on this connection.
remove_filter( 'upgrader_pre_install', array( $this, 'current_before' ) );
remove_filter( 'upgrader_post_install', array( $this, 'current_after' ) );
remove_filter( 'upgrader_clear_destination', array( $this, 'delete_old_theme' ) );
/*
* Ensure any future auto-update failures trigger a failure email by removing
* the last failure notification from the list when themes update successfully.
*/
$past_failure_emails = get_option( 'auto_plugin_theme_update_emails', array() );
foreach ( $results as $theme => $result ) {
// Maintain last failure notification when themes failed to update manually.
if ( ! $result || is_wp_error( $result ) || ! isset( $past_failure_emails[ $theme ] ) ) {
continue;
}
unset( $past_failure_emails[ $theme ] );
}
update_option( 'auto_plugin_theme_update_emails', $past_failure_emails );
return $results;
}
/**
* Checks that the package source contains a valid theme.
*
* Hooked to the {@see 'upgrader_source_selection'} filter by Theme_Upgrader::install().
*
* @since 3.3.0
*
* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.
*
* @param string $source The path to the downloaded package source.
* @return string|WP_Error The source as passed, or a WP_Error object on failure.
*/
public function check_package( $source ) {
global $wp_filesystem;
$wp_version = wp_get_wp_version();
$this->new_theme_data = array();
if ( is_wp_error( $source ) ) {
return $source;
}
// Check that the folder contains a valid theme.
$working_directory = str_replace( $wp_filesystem->wp_content_dir(), trailingslashit( WP_CONTENT_DIR ), $source );
if ( ! is_dir( $working_directory ) ) { // Confidence check, if the above fails, let's not prevent installation.
return $source;
}
// A proper archive should have a style.css file in the single subdirectory.
if ( ! file_exists( $working_directory . 'style.css' ) ) {
return new WP_Error(
'incompatible_archive_theme_no_style',
$this->strings['incompatible_archive'],
sprintf(
/* translators: %s: style.css */
__( 'The theme is missing the %s stylesheet.' ),
'<code>style.css</code>'
)
);
}
// All these headers are needed on Theme_Installer_Skin::do_overwrite().
$info = get_file_data(
$working_directory . 'style.css',
array(
'Name' => 'Theme Name',
'Version' => 'Version',
'Author' => 'Author',
'Template' => 'Template',
'RequiresWP' => 'Requires at least',
'RequiresPHP' => 'Requires PHP',
)
);
if ( empty( $info['Name'] ) ) {
return new WP_Error(
'incompatible_archive_theme_no_name',
$this->strings['incompatible_archive'],
sprintf(
/* translators: %s: style.css */
__( 'The %s stylesheet does not contain a valid theme header.' ),
'<code>style.css</code>'
)
);
}
/*
* Parent themes must contain an index file:
* - classic themes require /index.php
* - block themes require /templates/index.html or block-templates/index.html (deprecated 5.9.0).
*/
if (
empty( $info['Template'] ) &&
! file_exists( $working_directory . 'index.php' ) &&
! file_exists( $working_directory . 'templates/index.html' ) &&
! file_exists( $working_directory . 'block-templates/index.html' )
) {
return new WP_Error(
'incompatible_archive_theme_no_index',
$this->strings['incompatible_archive'],
sprintf(
/* translators: 1: templates/index.html, 2: index.php, 3: Documentation URL, 4: Template, 5: style.css */
__( 'Template is missing. Standalone themes need to have a %1$s or %2$s template file. <a href="%3$s">Child themes</a> need to have a %4$s header in the %5$s stylesheet.' ),
'<code>templates/index.html</code>',
'<code>index.php</code>',
__( 'https://developer.wordpress.org/themes/advanced-topics/child-themes/' ),
'<code>Template</code>',
'<code>style.css</code>'
)
);
}
$requires_php = isset( $info['RequiresPHP'] ) ? $info['RequiresPHP'] : null;
$requires_wp = isset( $info['RequiresWP'] ) ? $info['RequiresWP'] : null;
if ( ! is_php_version_compatible( $requires_php ) ) {
$error = sprintf(
/* translators: 1: Current PHP version, 2: Version required by the uploaded theme. */
__( 'The PHP version on your server is %1$s, however the uploaded theme requires %2$s.' ),
PHP_VERSION,
$requires_php
);
return new WP_Error( 'incompatible_php_required_version', $this->strings['incompatible_archive'], $error );
}
if ( ! is_wp_version_compatible( $requires_wp ) ) {
$error = sprintf(
/* translators: 1: Current WordPress version, 2: Version required by the uploaded theme. */
__( 'Your WordPress version is %1$s, however the uploaded theme requires %2$s.' ),
$wp_version,
$requires_wp
);
return new WP_Error( 'incompatible_wp_required_version', $this->strings['incompatible_archive'], $error );
}
$this->new_theme_data = $info;
return $source;
}
/**
* Turns on maintenance mode before attempting to upgrade the active theme.
*
* Hooked to the {@see 'upgrader_pre_install'} filter by Theme_Upgrader::upgrade() and
* Theme_Upgrader::bulk_upgrade().
*
* @since 2.8.0
*
* @param bool|WP_Error $response The installation response before the installation has started.
* @param array $theme Theme arguments.
* @return bool|WP_Error The original `$response` parameter or WP_Error.
*/
public function current_before( $response, $theme ) {
if ( is_wp_error( $response ) ) {
return $response;
}
$theme = isset( $theme['theme'] ) ? $theme['theme'] : '';
// Only run if active theme.
if ( get_stylesheet() !== $theme ) {
return $response;
}
// Change to maintenance mode. Bulk edit handles this separately.
if ( ! $this->bulk ) {
$this->maintenance_mode( true );
}
return $response;
}
/**
* Turns off maintenance mode after upgrading the active theme.
*
* Hooked to the {@see 'upgrader_post_install'} filter by Theme_Upgrader::upgrade()
* and Theme_Upgrader::bulk_upgrade().
*
* @since 2.8.0
*
* @param bool|WP_Error $response The installation response after the installation has finished.
* @param array $theme Theme arguments.
* @return bool|WP_Error The original `$response` parameter or WP_Error.
*/
public function current_after( $response, $theme ) {
if ( is_wp_error( $response ) ) {
return $response;
}
$theme = isset( $theme['theme'] ) ? $theme['theme'] : '';
// Only run if active theme.
if ( get_stylesheet() !== $theme ) {
return $response;
}
// Ensure stylesheet name hasn't changed after the upgrade:
if ( get_stylesheet() === $theme && $theme !== $this->result['destination_name'] ) {
wp_clean_themes_cache();
$stylesheet = $this->result['destination_name'];
switch_theme( $stylesheet );
}
// Time to remove maintenance mode. Bulk edit handles this separately.
if ( ! $this->bulk ) {
$this->maintenance_mode( false );
}
return $response;
}
/**
* Deletes the old theme during an upgrade.
*
* Hooked to the {@see 'upgrader_clear_destination'} filter by Theme_Upgrader::upgrade()
* and Theme_Upgrader::bulk_upgrade().
*
* @since 2.8.0
*
* @global WP_Filesystem_Base $wp_filesystem Subclass
*
* @param bool $removed
* @param string $local_destination
* @param string $remote_destination
* @param array $theme
* @return bool
*/
public function delete_old_theme( $removed, $local_destination, $remote_destination, $theme ) {
global $wp_filesystem;
if ( is_wp_error( $removed ) ) {
return $removed; // Pass errors through.
}
if ( ! isset( $theme['theme'] ) ) {
return $removed;
}
$theme = $theme['theme'];
$themes_dir = trailingslashit( $wp_filesystem->wp_themes_dir( $theme ) );
if ( $wp_filesystem->exists( $themes_dir . $theme ) ) {
if ( ! $wp_filesystem->delete( $themes_dir . $theme, true ) ) {
return false;
}
}
return true;
}
/**
* Gets the WP_Theme object for a theme.
*
* @since 2.8.0
* @since 3.0.0 The `$theme` argument was added.
*
* @param string $theme The directory name of the theme. This is optional, and if not supplied,
* the directory name from the last result will be used.
* @return WP_Theme|false The theme's info object, or false `$theme` is not supplied
* and the last result isn't set.
*/
public function theme_info( $theme = null ) {
if ( empty( $theme ) ) {
if ( ! empty( $this->result['destination_name'] ) ) {
$theme = $this->result['destination_name'];
} else {
return false;
}
}
$theme = wp_get_theme( $theme );
$theme->cache_delete();
return $theme;
}
}
تكنولوجيا السيارات الذكية تفرض قواعد جديدة علي الطرق – tahkoom.com
كتبت ميرنا أشرف
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أحدثت التكنولوجيا تطورا كبيرا في عالم السيارات، أبرزها تطوير الس يارات الكهربائية كحل مستدام للمستقبل. تتميز هذه السيارات بكفاءة عالية، وانبعاثات منخفضة، وتكاليف تشغيل أقل. رغم ذلك، لا تزال تواجه تحديات، ومع الابتكار المستمر تساهم التكنولوجيا في تجاوز هذه العقبات وتوسيع الاعتماد على النقل الكهربائي .
أكد الأستاذ هاني هشام، مدير إحدي معارض السيارات الكهربائية بالقاهرة، أن معرضة يُعد من المعارض الرائدة في مجال السيارات الكهربائية في مصر، حيث اتخذ خطوة جريئة بافتتاح معرض متخصص بالكامل في السيارات الكهربائية. وأضاف: “خطوتنا جاءت من إيماننا بأن المستقبل في سيارتك، لأن البنزين في طريقه للنهاية”. وأضاف، أن السبب الثاني لاتخاذ هذه الخطوة هو الارتفاع الكبير في تكلفة البنزين، مما يجعل السيارات الكهربائية هي البديل القوي للسيارات التقليدية خلال الفترة القادمة .
ومن جانبه، أكد الأستاذ مجدي كيلاني، أحد مسؤولي المبيعات لإحدي معارض السيارات بالقاهرة، أن التوجه للسيارات الكهربائية لم يعد رفاهية، بل ضرورة تفرضها المعايير البيئية والاقتصادية الحديثة. وأضاف أن المعرض يسعى لتوفير موديلات متنوعة تناسب احتياجات السوق المصري، مع تقديم خدمات ما بعد البيع وتوفير الدعم الفني اللازم، في خطوة تهدف إلى بناء ثقة المستهلك وتشجيعه على التحول لهذا النوع من السيارات
مميزات سيارات الكهرباء :
أوضح هشام، أنه من أبرز مميزات السيارات الكهربائية أنها تعتمد على بطاريات ليثيوم مما يجعل عمرها الافتراضي طويلاً ، ويجعلها أيضاً خيارًا عمليًا واقتصاديًا على المدى البعيد. كما أن قطع غيارها متوفرة، وصيانتها محدودة مقارنة بالسيارات التقليدية، كما أنها تحافظ على البيئة المحيطة بها وتُعد صديقة للبيئة، بفضل خلوّها من الانبعاثات الضارة .
وهناك نظام تمتاز به سيارات الكهرباء ليست في السيارات العادية وهي قدرتها على قراءة إرشادات الطريق الموجودة عليه، والتعرف على اللوحات والإشارات المنتشرة في الشوارع، مما يعزز من أمان القيادة ويسهل على السائقين التنقل بذكاء وسهولة .
اتفق معه كيلاني، وأضاف أن السيارات الكهربائية تتميز بعدة مزايا تجعلها خيارًا أفضل للمستقبل، أولها نها لا تستهلك البنزين، مما يجعلها وسيلة موفرة بالمقارنة بالسيارات التقليدية المستهلكة للبنزين المستمر .
وتزوّد بعض من انواع سيارات الكهرباء المتقدمة في الطراز بأنظمة أمان ذكية، خاصة في السيارات ذاتية القيادة، فعلى سبيل المثال، إذا وجدت طفلا يقطع الطريق فجأة، تقوم السيارة تلقائيًا بتفعيل وضع منع التصادم والتوقف الفوري، مما يعزز من مستوى الامان على الطرق و علي المستخدم .
التحديات التي تواجه سيارات الكهرباء :
قال هشام، إن أولى التحديات التي تواجه انتشار السيارات الكهربائية تتعلق بالعقلية و التفكير، حيث لايزال كثير من الناس غير مقتنعين تمامًا بفكرة الاعتماد على هذا النوع من السيارات، ويشعرون بالتخوف من السير بسيارة تعمل فقط بالبطارية. هذا التخوف يُشكل عامل قلق لدى العديد من الأفراد، نتيجة لعدم الاطمئنان الكامل تجاه مدى أمان البطارية وكفاءتها، وهو ما يتطلب جهود أكبر لنشر الوعي وتوضيح مزايا هذه التكنولوجيا الجديدة .
بينما يري الكيلاني، ان هناك تحدي واضح يتمثل في غياب المراكز المعتمدة لصيانتها حتى الآن فبالرغم من انها لا تحتاج صيانه في اغلب الاوقات الا انه لا يمكن شراء سيارة بدون معرفه مراكز صيانتها وذلك ايضا هو نوع من تخوف الافراد لشرائها، وذلك يحدث بسبب ضعف البنية التحتية اللازمة لدعم هذا النوع من السيارات بالشكل الكافي .
وحول مدى تطور التكنولوجيا في مجال السيارات الكهربائية، يرى الأستاذ هشام، أن ما وصلت إليه هذه الصناعة يؤكد انها تمثل المستقبل الحقيقي لعالم السيارات، وان هذا التطور التكنولوجي يسهم في تعزيز ثقة المستهلك ويدعم توجه السوق نحو البدائل النظيفة والمستدامة .
ومن جانبه، أشار الكيلاني، إلي أن هذا التطور يمهد لتحول في قطاع النقل، خاصة على المدى البعيد. وأكد أن انتشار السيارات الكهربائية سيسهم بشكل كبير في تقليل نسبة التلوث الذي يتعرض له الهواء نتيجة الانبعاثات الناتجة عن وقود السيارات التقليدية .
تمثل السيارات الكهربائية مستقبل النقل الذكي والمستدام، وسط التطور التكنولوجي المتسارع والجهود المستمرة لتجاوز هذه التحديات وبناء ثقة المستهلك نحو بيئة أنظف وقيادة أكثر كفاءة .
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