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wp-content/plugins/query-monitor/classes/debug_bar.php

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+<?php declare(strict_types = 1);
+/**
+ * Mock 'Debug Bar' plugin class.
+ *
+ * @package query-monitor
+ */
+
+class Debug_Bar {
+	/**
+	 * @var array<int, Debug_Bar_Panel>
+	 */
+	public $panels = array();
+
+	public function __construct() {
+		add_action( 'wp_head', array( $this, 'ensure_ajaxurl' ), 1 );
+
+		$this->enqueue();
+		$this->init_panels();
+	}
+
+	/**
+	 * @return void
+	 */
+	public function enqueue() {
+		// phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion
+		wp_register_style( 'debug-bar', false, array(
+			'query-monitor',
+		) );
+		// phpcs:ignore WordPress.WP.EnqueuedResourceParameters.MissingVersion
+		wp_register_script( 'debug-bar', false, array(
+			'query-monitor',
+		) );
+
+		/**
+		 * Fires after scripts have been enqueued. This mimics the same action fired in the Debug Bar plugin.
+		 *
+		 * @since 2.7.0
+		 */
+		do_action( 'debug_bar_enqueue_scripts' );
+	}
+
+	/**
+	 * @return void
+	 */
+	public function init_panels() {
+		/**
+		 * Filters the debug bar panel list. This mimics the same filter called in the Debug Bar plugin.
+		 *
+		 * @since 2.7.0
+		 *
+		 * @param array<int, Debug_Bar_Panel> $panels Array of Debug Bar panel instances.
+		 */
+		$this->panels = apply_filters( 'debug_bar_panels', array() );
+	}
+
+	/**
+	 * @return void
+	 */
+	public function ensure_ajaxurl() {
+		$dispatcher = QM_Dispatchers::get( 'html' );
+
+		if ( $this->panels && $dispatcher && $dispatcher::user_can_view() ) {
+			?>
+			<script type="text/javascript">
+			var ajaxurl = '<?php echo esc_url( admin_url( 'admin-ajax.php' ) ); ?>';
+			</script>
+			<?php
+		}
+	}
+
+	/**
+	 * @return void
+	 */
+	public function Debug_Bar() {
+		self::__construct();
+	}
+
+}