re-add supports-input-formatting.ts

src/lib/restricted-input.ts

@@ -1,4 +1,5 @@
 import { isIos, isKitKatWebview, isAndroidChrome, isIE9 } from "./device";
+import supportsInputFormatting = require("../supports-input-formatting");
 import { IosStrategy } from "./strategies/ios";
 import { AndroidChromeStrategy } from "./strategies/android-chrome";
 import { KitKatChromiumBasedWebViewStrategy } from "./strategies/kitkat-chromium-based-webview";
@@ -49,6 +50,10 @@ class RestrictedInput {
   setPattern(pattern: string): void {
     this.strategy.setPattern(pattern);
   }
+
+  static supportsFormatting(): boolean {
+    return supportsInputFormatting();
+  }
 }
 
 export = RestrictedInput;

src/supports-input-formatting.ts

@@ -0,0 +1,6 @@
+import { isSamsungBrowser } from "./lib/device";
+
+export = function supportsInputFormatting(): boolean {
+  // Digits get dropped in samsung browser
+  return !isSamsungBrowser();
+};

test/unit/lib/restricted-input.test.ts

@@ -148,4 +148,18 @@ describe("RestrictedInput", function () {
       expect(ri.strategy.setPattern).toBeCalledWith("{{1}}");
     });
   });
+
+  describe("supportsFormatting", function () {
+    it("returns false if device is a samsung browser", function () {
+      jest.mocked(isSamsungBrowser).mockReturnValue(true);
+
+      expect(RestrictedInput.supportsFormatting()).toBe(false);
+    });
+
+    it("returns true if device is not a Samsung browser", function () {
+      jest.mocked(isSamsungBrowser).mockReturnValue(false);
+
+      expect(RestrictedInput.supportsFormatting()).toBe(true);
+    });
+  });
 });