As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
/**
* WPSEO plugin file.
*
* @package WPSEO\Admin
*/
/**
* Represents the utils for the admin.
*/
class WPSEO_Admin_Utils {
/**
* Gets the install URL for the passed plugin slug.
*
* @param string $slug The slug to create an install link for.
*
* @return string The install URL. Empty string if the current user doesn't have the proper capabilities.
*/
public static function get_install_url( $slug ) {
if ( ! current_user_can( 'install_plugins' ) ) {
return '';
}
return wp_nonce_url(
self_admin_url( 'update.php?action=install-plugin&plugin=' . dirname( $slug ) ),
'install-plugin_' . dirname( $slug ),
);
}
/**
* Gets the activation URL for the passed plugin slug.
*
* @param string $slug The slug to create an activation link for.
*
* @return string The activation URL. Empty string if the current user doesn't have the proper capabilities.
*/
public static function get_activation_url( $slug ) {
if ( ! current_user_can( 'activate_plugins' ) ) {
return '';
}
return wp_nonce_url(
self_admin_url( 'plugins.php?action=activate&plugin_status=all&paged=1&s&plugin=' . $slug ),
'activate-plugin_' . $slug,
);
}
/**
* Creates a link if the passed plugin is deemend a directly-installable plugin.
*
* @param array $plugin The plugin to create the link for.
*
* @return string The link to the plugin install. Returns the title if the plugin is deemed a Premium product.
*/
public static function get_install_link( $plugin ) {
$install_url = self::get_install_url( $plugin['slug'] );
if ( $install_url === '' || ( isset( $plugin['premium'] ) && $plugin['premium'] === true ) ) {
return $plugin['title'];
}
return sprintf(
'<a href="%s">%s</a>',
$install_url,
$plugin['title'],
);
}
/**
* Gets a visually hidden accessible message for links that open in a new browser tab.
*
* @return string The visually hidden accessible message.
*/
public static function get_new_tab_message() {
return sprintf(
'<span class="screen-reader-text">%s</span>',
/* translators: Hidden accessibility text. */
esc_html__( '(Opens in a new browser tab)', 'wordpress-seo' ),
);
}
}