The Garage SDKs, in the open

garage_auth, garage_entitlements, garage_iap and garage_ui, moved out of Garage-Services and Metro-Map-Maker into one public repo. MIT, one readme, docs under docs/. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013F4NWNvYcdeSgqbWMT1VQ7
2026-09-23 18:49:21 +01:00
commit b269201919
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+// ignore_for_file: avoid_web_libraries_in_flutter
+
+import "dart:js_interop";
+import "dart:js_interop_unsafe";
+
+import "package:flutter/widgets.dart";
+
+// EyeDropper is a chromium-only api at the time of writing (no firefox, no
+// safari), hence the feature check rather than just assuming its there on web.
+// https://developer.mozilla.org/en-US/docs/Web/API/EyeDropper
+
+@JS("EyeDropper")
+extension type _EyeDropper._(JSObject _) implements JSObject {
+  external _EyeDropper();
+
+  external JSPromise<_EyeDropperResult> open();
+}
+
+extension type _EyeDropperResult._(JSObject _) implements JSObject {
+  external String get sRGBHex;
+}
+
+Future<bool> nativeEyedropperAvailable() async =>
+    globalContext.has("EyeDropper");
+
+Future<Color?> pickNativeScreenColor() async {
+  try {
+    final result = await _EyeDropper().open().toDart;
+    return _parseHex(result.sRGBHex);
+  } catch (error, stack) {
+    // cancelling with escape rejects the promise with an AbortError, so this
+    // path is completely normal - still worth a line in the console though.
+    debugPrint("eyedropper: web pick ended without a colour: $error\n$stack");
+    return null;
+  }
+}
+
+Color? _parseHex(String value) {
+  final hex = value.replaceAll("#", "");
+  if (hex.length != 6) {
+    debugPrint("eyedropper: unexpected sRGBHex \"$value\"");
+    return null;
+  }
+  final parsed = int.tryParse(hex, radix: 16);
+  if (parsed == null) {
+    debugPrint("eyedropper: could not parse sRGBHex \"$value\"");
+    return null;
+  }
+  return Color(0xFF000000 | parsed);
+}