Add a 'View in code editor' link to the PHPCS warnings/errors

admin/admin.php

@@ -71,4 +71,36 @@ function render_page() {
 			}
 		}
 	}
-}
+}
+
+/**
+ * Jump to the requested line when opening the file editor.
+ */
+add_action(
+	'admin_enqueue_scripts',
+	function ( $hook_suffix ) {
+		if ( ! isset( $_GET['line'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+			return;
+		}
+		$line = (int) $_GET['line']; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+
+		if ( 'plugin-editor.php' === $hook_suffix ) {
+			wp_add_inline_script(
+				'wp-theme-plugin-editor',
+				sprintf(
+					'
+						(
+							function( originalInitCodeEditor ) {
+								wp.themePluginEditor.initCodeEditor = function init() {
+									originalInitCodeEditor.apply( this, arguments );
+									this.instance.codemirror.doc.setCursor( %d - 1 );
+								};
+							}
+						)( wp.themePluginEditor.initCodeEditor );
+					',
+					wp_json_encode( $line )
+				)
+			);
+		}
+	}
+);

checks/phpcs.php

@@ -110,16 +110,42 @@ protected function phpcs_result_to_warnings( $result ) {
 				}
 
 				$source_code = esc_html( trim( file( $this->path . '/' . $filename )[ $message['line'] - 1 ] ) );
+				$edit_link   = '';
+
+				if ( ! defined( 'DISALLOW_FILE_EDIT' ) || ! DISALLOW_FILE_EDIT ) {
+					$plugin_data = get_plugins( '/' . $this->slug );
+
+					$edit_link = sprintf(
+						'<a href="%1$s" title="%2$s" aria-label="%2$s" target="_blank">%3$s</a>',
+						esc_url(
+							add_query_arg(
+								[
+									'plugin' => rawurlencode( $this->slug . '/' . array_key_first( $plugin_data ) ),
+									'file'   => rawurlencode( $this->slug . '/' . $filename ),
+									'line'   => rawurlencode( $message['line'] ),
+								],
+								admin_url( 'plugin-editor.php' )
+							)
+						),
+						sprintf(
+							/* translators: %1$s is the path to a plugin file. */
+							esc_attr__( 'View %1$s in the plugin file editor.', 'plugin-check' ),
+							$this->slug . '/' . $filename
+						),
+						esc_html__( 'View in code editor', 'plugin-check' )
+					);
+				}
 
 				$return[] = new $notice_class(
 					$message['source'],
 					sprintf(
-						'%s Line %d of file %s.<br>%s.<br>%s',
+						'%s Line %d of file %s.<br>%s.<br>%s%s',
 						"<strong>{$message['source']}</strong>",
 						$message['line'],
 						$filename,
 						rtrim( $message['message'], '.' ),
-						"<pre><code>{$source_code}</code></pre>"
+						"<pre><code>{$source_code}</code></pre>",
+						$edit_link
 					)
 				);
 			}