From 517f63835dba91106f4eab5814e92fc63b91c8a0 Mon Sep 17 00:00:00 2001
From: Jakub Vrana <jakub@vrana.cz>
Date: Sun, 16 Mar 2025 13:52:04 +0100
Subject: [PATCH] Plugins: add syntaxHighlighting() and CodeMirror

---
 adminer/include/adminer.inc.php | 54 ++++++++++---------
 changes.txt                     |  1 +
 editor/include/adminer.inc.php  |  3 ++
 plugins/codemirror.php          | 92 +++++++++++++++++++++++++++++++++
 plugins/plugin.php              |  5 ++
 5 files changed, 130 insertions(+), 25 deletions(-)
 create mode 100644 plugins/codemirror.php

diff --git a/adminer/include/adminer.inc.php b/adminer/include/adminer.inc.php
index 197bb2e5..24d1b09a 100644
--- a/adminer/include/adminer.inc.php
+++ b/adminer/include/adminer.inc.php
@@ -1018,31 +1018,7 @@ class Adminer {
 				$connection->select_db(DB);
 				$tables = table_status('', true);
 			}
-			// this is matched by compile.php
-			echo script_src("../externals/jush/modules/jush.js");
-			echo script_src("../externals/jush/modules/jush-textarea.js");
-			echo script_src("../externals/jush/modules/jush-txt.js");
-			echo script_src("../externals/jush/modules/jush-js.js");
-			if (support("sql")) {
-				echo script_src("../externals/jush/modules/jush-" . JUSH . ".js");
-				?>
-<script<?php echo nonce(); ?>>
-<?php
-				if ($tables) {
-					$links = array();
-					foreach ($tables as $table => $type) {
-						$links[] = preg_quote($table, '/');
-					}
-					echo "var jushLinks = { " . JUSH . ": [ '" . js_escape(ME) . (support("table") ? "table=" : "select=") . "\$&', /\\b(" . implode("|", $links) . ")\\b/g ] };\n";
-					foreach (array("bac", "bra", "sqlite_quo", "mssql_bra") as $val) {
-						echo "jushLinks.$val = jushLinks." . JUSH . ";\n";
-					}
-				}
-				?>
-bodyLoad('<?php echo (is_object($connection) ? preg_replace('~^(\d\.?\d).*~s', '\1', $connection->server_info) : ""); ?>'<?php echo ($connection->maria ? ", true" : ""); ?>);
-</script>
-<?php
-			}
+			$this->syntaxHighlighting($tables);
 			$this->databasesPrint($missing);
 			$actions = array();
 			if (DB == "" || !$missing) {
@@ -1067,6 +1043,34 @@ bodyLoad('<?php echo (is_object($connection) ? preg_replace('~^(\d\.?\d).*~s', '
 		}
 	}
 
+	/** Set up syntax highlight for code and <textarea>
+	* @param array result of table_status()
+	*/
+	function syntaxHighlighting($tables) {
+		global $connection;
+		// this is matched by compile.php
+		echo script_src("../externals/jush/modules/jush.js");
+		echo script_src("../externals/jush/modules/jush-textarea.js");
+		echo script_src("../externals/jush/modules/jush-txt.js");
+		echo script_src("../externals/jush/modules/jush-js.js");
+		if (support("sql")) {
+			echo script_src("../externals/jush/modules/jush-" . JUSH . ".js");
+			echo "<script" . nonce() . ">\n";
+			if ($tables) {
+				$links = array();
+				foreach ($tables as $table => $type) {
+					$links[] = preg_quote($table, '/');
+				}
+				echo "var jushLinks = { " . JUSH . ": [ '" . js_escape(ME) . (support("table") ? "table=" : "select=") . "\$&', /\\b(" . implode("|", $links) . ")\\b/g ] };\n";
+				foreach (array("bac", "bra", "sqlite_quo", "mssql_bra") as $val) {
+					echo "jushLinks.$val = jushLinks." . JUSH . ";\n";
+				}
+			}
+			echo "</script>\n";
+		}
+		echo script("bodyLoad('" . (is_object($connection) ? preg_replace('~^(\d\.?\d).*~s', '\1', $connection->server_info) : "") . "'" . ($connection->maria ? ", true" : "") . ");");
+	}
+
 	/** Prints databases list in menu
 	* @param string
 	* @return null
diff --git a/changes.txt b/changes.txt
index a53e2dfd..1d813728 100644
--- a/changes.txt
+++ b/changes.txt
@@ -3,6 +3,7 @@ Align numbers right (bug #912)
 CSS: Dark mode syntax highlighting
 SQL textarea: Open help on Ctrl+click
 Designs named adminer-dark.css use dark basic style
+Plugins: add method syntaxHighlighting()
 
 Adminer 5.0.5 (released 2025-03-13):
 MySQL: Display converting function for binary, bit or geometry fields
diff --git a/editor/include/adminer.inc.php b/editor/include/adminer.inc.php
index 6ab6da82..508c7dae 100644
--- a/editor/include/adminer.inc.php
+++ b/editor/include/adminer.inc.php
@@ -627,6 +627,9 @@ qsl('div').onclick = whisperClick;", "")
 		}
 	}
 
+	function syntaxHighlighting($tables) {
+	}
+
 	function databasesPrint($missing) {
 	}
 
diff --git a/plugins/codemirror.php b/plugins/codemirror.php
new file mode 100644
index 00000000..8d55988c
--- /dev/null
+++ b/plugins/codemirror.php
@@ -0,0 +1,92 @@
+<?php
+
+/** Use Codemirror 5 for syntax highlighting and SQL <textarea> including type-ahead of keywords and tables
+* @link https://codemirror.net/5/
+* @link https://www.adminer.org/plugins/#use
+* @author Jakub Vrana, https://www.vrana.cz/
+* @license https://www.apache.org/licenses/LICENSE-2.0 Apache License, Version 2.0
+* @license https://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 (one or other)
+*/
+class AdminerCodemirror {
+	private $root;
+
+	function __construct($root = "codemirror5") {
+		$this->root = $root;
+	}
+
+	function syntaxHighlighting($tableStatuses) {
+		$connection = Adminer\connection();
+		?>
+<style>
+@import url(<?php echo $this->root; ?>/lib/codemirror.css);
+@import url(<?php echo $this->root; ?>/addon/hint/show-hint.css);
+.CodeMirror { border: 1px inset #ccc; resize: both; }
+</style>
+<?php
+		echo Adminer\script_src("$this->root/lib/codemirror.js");
+		echo Adminer\script_src("$this->root/addon/runmode/runmode.js");
+		echo Adminer\script_src("$this->root/addon/hint/show-hint.js");
+		echo Adminer\script_src("$this->root/mode/javascript/javascript.js");
+		if (Adminer\support("sql")) {
+			echo Adminer\script_src("$this->root/mode/sql/sql.js");
+			echo Adminer\script_src("$this->root/addon/hint/sql-hint.js");
+		}
+		$tables = array();
+		foreach ($tableStatuses as $status) {
+			foreach (Adminer\fields($status["Name"]) as $name => $field) {
+				$tables[$status["Name"]][] = $name;
+			}
+		}
+		?>
+<script <?php echo Adminer\nonce(); ?>>
+function getCmMode(el) {
+	const match = el.className.match(/(^|\s)jush-([^ ]+)/);
+	if (match) {
+		const modes = {
+			js: 'application/json',
+			sql: 'text/x-<?php echo ($connection->maria ? "mariadb" : "mysql"); ?>',
+			oracle: 'text/x-sql',
+			clickhouse: 'text/x-sql',
+			firebird: 'text/x-sql'
+		};
+		return modes[match[2]] || 'text/x-' + match[2];
+	}
+}
+
+for (const el of qsa('code')) {
+	const mode = getCmMode(el);
+	if (mode) {
+		el.className += ' cm-s-default';
+		CodeMirror.runMode(el.textContent, mode, el);
+	}
+}
+
+for (const el of qsa('textarea')) {
+	const mode = getCmMode(el);
+	if (mode) {
+		const width = el.clientWidth;
+		const height = el.clientHeight;
+		const cm = CodeMirror.fromTextArea(el, {
+			mode: mode,
+			extraKeys: { 'Ctrl-Space': 'autocomplete' },
+			hintOptions: {
+				completeSingle: false,
+				tables: <?php echo json_encode($tables); ?>,
+				defaultTable: <?php echo json_encode($_GET["trigger"] ? $_GET["trigger"] : ($_GET["check"] ? $_GET["check"] : null)); ?>
+			}
+		});
+		cm.setSize(width, height);
+		cm.on('inputRead', function () {
+			const token = cm.getTokenAt(cm.getCursor());
+			if (/^[.`"\w]\w*$/.test(token.string)) {
+				CodeMirror.commands.autocomplete(cm);
+			}
+		});
+		setupSubmitHighlightInput(cm.getWrapperElement());
+	}
+}
+</script>
+<?php
+		return true;
+	}
+}
diff --git a/plugins/plugin.php b/plugins/plugin.php
index 84dcbe4c..14622932 100644
--- a/plugins/plugin.php
+++ b/plugins/plugin.php
@@ -407,6 +407,11 @@ class AdminerPlugin extends Adminer\Adminer {
 		return $this->applyPlugin(__FUNCTION__, $args);
 	}
 
+	function syntaxHighlighting($tables) {
+		$args = func_get_args();
+		return $this->applyPlugin(__FUNCTION__, $args);
+	}
+
 	function databasesPrint($missing) {
 		$args = func_get_args();
 		return $this->applyPlugin(__FUNCTION__, $args);