yeet

node_modules/react-native-web/dist/exports/Appearance/index.js

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+/**
+ * Copyright (c) Nicolas Gallagher.
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * 
+ */
+import { canUseDOM } from 'fbjs/lib/ExecutionEnvironment';
+
+function getQuery() {
+  return canUseDOM && window.matchMedia != null ? window.matchMedia('(prefers-color-scheme: dark)') : null;
+}
+
+var query = getQuery();
+var listenerMapping = new WeakMap();
+var Appearance = {
+  getColorScheme: function getColorScheme() {
+    return query && query.matches ? 'dark' : 'light';
+  },
+  addChangeListener: function addChangeListener(listener) {
+    var mappedListener = listenerMapping.get(listener);
+
+    if (!mappedListener) {
+      mappedListener = function mappedListener(_ref) {
+        var matches = _ref.matches;
+        listener({
+          colorScheme: matches ? 'dark' : 'light'
+        });
+      };
+
+      listenerMapping.set(listener, mappedListener);
+    }
+
+    if (query) {
+      query.addListener(mappedListener);
+    }
+  },
+  removeChangeListener: function removeChangeListener(listener) {
+    var mappedListener = listenerMapping.get(listener);
+
+    if (mappedListener) {
+      if (query) {
+        query.removeListener(mappedListener);
+      }
+
+      listenerMapping.delete(listener);
+    }
+  }
+};
+export default Appearance;