feat: Add backdropFilterDetector.ts

Author: myxvisual

src/common/browser/backdropFilterDetector.ts

@@ -0,0 +1,18 @@
+export function isSupportBackdropFilter() {
+  let isSupported = false;
+  const propertyName = "backdropFilter";
+  const propertyValue = "blur(10px)";
+
+  if (CSS && CSS.supports) {
+    return CSS.supports("backdrop-filter", propertyValue);
+  } else {
+    const { style } = document.createElement("div");
+    isSupported = style[propertyName] !== void 0;
+    if (isSupported) {
+      style[propertyName] = propertyValue;
+      isSupported = style.cssText.length !== 0;
+    }
+
+    return isSupported;
+  }
+}