1 files changed, 75 insertions, 0 deletions
diff --git a/library/Icinga/Less/LightModeDefinition.php b/library/Icinga/Less/LightModeDefinition.php
new file mode 100644
index 0000000..929e95c
--- /dev/null
+++ b/library/Icinga/Less/LightModeDefinition.php
@@ -0,0 +1,75 @@
+<?php
+/* Icinga Web 2 | (c) 2022 Icinga GmbH | GPLv2+ */
+
+namespace Icinga\Less;
+
+use Less_Environment;
+use Less_Exception_Compiler;
+use Less_Tree_DetachedRuleset;
+use Less_Tree_Ruleset;
+
+/**
+ * Register the environment in which the light mode is defined
+ */
+class LightModeDefinition extends Less_Tree_DetachedRuleset
+{
+    use LightModeTrait;
+
+    /** @var string */
+    protected $name;
+
+    /**
+     * @param Less_Tree_DetachedRuleset $drs
+     *
+     * @return static
+     */
+    public static function fromDetachedRuleset(Less_Tree_DetachedRuleset $drs)
+    {
+        return new static($drs->ruleset, $drs->frames);
+    }
+
+    /**
+     * @return string
+     */
+    public function getName()
+    {
+        return $this->name;
+    }
+
+    /**
+     * @param string $name
+     *
+     * @return $this
+     */
+    public function setName($name)
+    {
+        $this->name = $name;
+
+        return $this;
+    }
+
+    /**
+     * @param Less_Environment $env
+     *
+     * @return Less_Tree_DetachedRuleset
+     */
+    public function compile($env)
+    {
+        $drs = parent::compile($env);
+
+        /** @var $frame Less_Tree_Ruleset */
+        foreach ($env->frames as $frame) {
+            if ($frame->variable($this->getName())) {
+                if (! empty($frame->first_oelements) && ! isset($frame->first_oelements['.icinga-module'])) {
+                    throw new Less_Exception_Compiler('Light mode definition not allowed in selectors');
+                }
+
+                break;
+            }
+        }
+
+        $this->getLightMode()->setEnv($this->getName(), $env->copyEvalEnv($env->frames));
+
+        return $drs;
+    }
+}