copyImage method

@override Future<void> copyImage(String imagePath)

Copies the image located at imagePath to the clipboard.

For web platform, imagePath should be a URL. For other platforms, imagePath should be a local file path.

Implementation

@override
Future<void> copyImage(String imagePath) async {
  // Read the image from the URL and convert it to a byte array
  final response = await html.HttpRequest.request(imagePath,
      responseType: 'blob', method: 'GET', mimeType: 'image/png');
  final reader = html.FileReader();
  final completer = Completer<String>();
  reader.onLoadEnd.listen((event) {
    completer.complete(reader.result as String);
  });
  reader.readAsDataUrl(response.response as html.Blob);
  final base64String = await completer.future;

  // Get the Base64 encoded byte array
  final base64Data = base64String.split(',').last;
  final byteArray = base64Decode(base64Data);

  // Convert the Base64 data to a Blob
  html.Blob blob = html.Blob([byteArray], 'image/png');

  // Define the clipboardCopy function
  clipboardCopy(html.Blob imageBlob) {
    final clipboardItemCtor = js.context['ClipboardItem'];
    final clipboardItem = js.JsObject(clipboardItemCtor, [
      js.JsObject.jsify({'image/png': imageBlob})
    ]);
    js.context['navigator']['clipboard']
        .callMethod('write', [js.JsArray()..add(clipboardItem)]);
  }

  // Call the clipboardCopy function
  clipboardCopy(blob);
}