Add shareBuiltCSSWithAdoptedStyleSheets global setting

Polymer · Apr 3, 2020 · 2fc9062 · 2fc9062
1 parent 20b207e
commit 2fc9062
Showing 1 changed file with 19 additions and 1 deletion.
diff --git a/lib/utils/settings.js b/lib/utils/settings.js
@@ -338,4 +338,22 @@ export let legacyNoObservedAttributes =
  */
 export const setLegacyNoObservedAttributes = function(noObservedAttributes) {
   legacyNoObservedAttributes = noObservedAttributes;
-};
+};
+
+/**
+ * Setting to enable use of `adoptedStyleSheets` for sharing style sheets
+ * between component instances' shadow roots, if the app uses built Shady CSS
+ * styles.
+ */
+export let shareBuiltCSSWithAdoptedStyleSheets =
+  window.Polymer && window.Polymer.shareBuiltCSSWithAdoptedStyleSheets || false;
+
+/**
+ * Sets `shareBuiltCSSWithAdoptedStyleSheets` globally.
+ *
+ * @param {boolean} newValue enable or disable `shareBuiltCSSWithAdoptedStyleSheets`
+ * @return {void}
+ */
+export const setShareBuiltCSSWithAdoptedStyleSheets = function(value) {
+  shareBuiltCSSWithAdoptedStyleSheets = value;
+};