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-rw-r--r--library/Icinga/Less/LightMode.php128
1 files changed, 128 insertions, 0 deletions
diff --git a/library/Icinga/Less/LightMode.php b/library/Icinga/Less/LightMode.php
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+++ b/library/Icinga/Less/LightMode.php
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+<?php
+/* Icinga Web 2 | (c) 2022 Icinga GmbH | GPLv2+ */
+
+namespace Icinga\Less;
+
+use ArrayIterator;
+use InvalidArgumentException;
+use IteratorAggregate;
+use Less_Environment;
+use Traversable;
+
+/**
+ * Registry for light modes and the environments in which they are defined
+ */
+class LightMode implements IteratorAggregate
+{
+ /** @var array Mode environments as mode-environment pairs */
+ protected $envs = [];
+
+ /** @var array Assoc list of modes */
+ protected $modes = [];
+
+ /** @var array Mode selectors as mode-selector pairs */
+ protected $selectors = [];
+
+ /**
+ * @param string $mode
+ *
+ * @return $this
+ *
+ * @throws InvalidArgumentException If the mode already exists
+ */
+ public function add($mode)
+ {
+ if (array_key_exists($mode, $this->modes)) {
+ throw new InvalidArgumentException("$mode already exists");
+ }
+
+ $this->modes[$mode] = true;
+
+ return $this;
+ }
+
+ /**
+ * @param string $mode
+ *
+ * @return Less_Environment
+ *
+ * @throws InvalidArgumentException If there is no environment for the given mode
+ */
+ public function getEnv($mode)
+ {
+ if (! isset($this->envs[$mode])) {
+ throw new InvalidArgumentException("$mode does not exist");
+ }
+
+ return $this->envs[$mode];
+ }
+
+ /**
+ * @param string $mode
+ * @param Less_Environment $env
+ *
+ * @return $this
+ *
+ * @throws InvalidArgumentException If an environment for given the mode already exists
+ */
+ public function setEnv($mode, Less_Environment $env)
+ {
+ if (array_key_exists($mode, $this->envs)) {
+ throw new InvalidArgumentException("$mode already exists");
+ }
+
+ $this->envs[$mode] = $env;
+
+ return $this;
+ }
+
+ /**
+ * @param string $mode
+ *
+ * @return bool
+ */
+ public function hasSelector($mode)
+ {
+ return isset($this->selectors[$mode]);
+ }
+
+ /**
+ * @param string $mode
+ *
+ * @return string
+ *
+ * @throws InvalidArgumentException If there is no selector for the given mode
+ */
+ public function getSelector($mode)
+ {
+ if (! isset($this->selectors[$mode])) {
+ throw new InvalidArgumentException("$mode does not exist");
+ }
+
+ return $this->selectors[$mode];
+ }
+
+ /**
+ * @param string $mode
+ * @param string $selector
+ *
+ * @return $this
+ *
+ * @throws InvalidArgumentException If a selector for given the mode already exists
+ */
+ public function setSelector($mode, $selector)
+ {
+ if (array_key_exists($mode, $this->selectors)) {
+ throw new InvalidArgumentException("$mode already exists");
+ }
+
+ $this->selectors[$mode] = $selector;
+
+ return $this;
+ }
+
+ public function getIterator(): Traversable
+ {
+ return new ArrayIterator(array_keys($this->modes));
+ }
+}