[file_selector_web] feat: Support XFile.mimeType

packages/file_selector/file_selector_web/CHANGELOG.md

@@ -1,5 +1,6 @@
-## NEXT
+## 0.9.5
 
+* Adds support for mimeType on XFile.
 * Updates minimum supported SDK version to Flutter 3.35/Dart 3.9.
 
 ## 0.9.4+2

packages/file_selector/file_selector_web/example/integration_test/dom_helper_test.dart

@@ -46,8 +46,16 @@ void main() {
     });
 
     group('getFiles', () {
-      final mockFile1 = File(<JSAny>['123456'.toJS].toJS, 'file1.txt');
-      final mockFile2 = File(<JSAny>[].toJS, 'file2.txt');
+      final mockFile1 = File(
+        <JSAny>['123456'.toJS].toJS,
+        'file1.txt',
+        FilePropertyBag(type: 'text/plain'),
+      );
+      final mockFile2 = File(
+        <JSAny>[].toJS,
+        'file2.txt',
+        FilePropertyBag(type: 'text/plain'),
+      );
 
       testWidgets('works', (_) async {
         final Future<List<XFile>> futureFiles = domHelper.getFiles(
@@ -61,11 +69,13 @@ void main() {
         expect(files.length, 2);
 
         expect(files[0].name, 'file1.txt');
+        expect(files[0].mimeType, 'text/plain');
         expect(await files[0].length(), 6);
         expect(await files[0].readAsString(), '123456');
         expect(await files[0].lastModified(), isNotNull);
 
         expect(files[1].name, 'file2.txt');
+        expect(files[1].mimeType, 'text/plain');
         expect(await files[1].length(), 0);
         expect(await files[1].readAsString(), '');
         expect(await files[1].lastModified(), isNotNull);

packages/file_selector/file_selector_web/example/integration_test/file_selector_web_test.dart

@@ -17,7 +17,11 @@ void main() {
 
     group('openFile', () {
       testWidgets('works', (WidgetTester _) async {
-        final XFile mockFile = createXFile('1001', 'identity.png');
+        final XFile mockFile = createXFile(
+          '1001',
+          'identity.png',
+          mimeType: 'image/png',
+        );
 
         final mockDomHelper = MockDomHelper(
           files: <XFile>[mockFile],
@@ -39,6 +43,7 @@ void main() {
 
         expect(file, isNotNull);
         expect(file!.name, mockFile.name);
+        expect(file.mimeType, 'image/png');
         expect(await file.length(), 4);
         expect(await file.readAsString(), '1001');
         expect(await file.lastModified(), isNotNull);
@@ -137,7 +142,16 @@ class MockDomHelper implements DomHelper {
   }
 }
 
-XFile createXFile(String content, String name) {
+XFile createXFile(
+  String content,
+  String name, {
+  String mimeType = 'text/plain',
+}) {
   final data = Uint8List.fromList(content.codeUnits);
-  return XFile.fromData(data, name: name, lastModified: DateTime.now());
+  return XFile.fromData(
+    data,
+    name: name,
+    lastModified: DateTime.now(),
+    mimeType: mimeType,
+  );
 }

packages/file_selector/file_selector_web/lib/src/dom_helper.dart

@@ -71,6 +71,7 @@ class DomHelper {
   }
 
   XFile _convertFileToXFile(File file) => XFile(
+    mimeType: file.type,
     URL.createObjectURL(file),
     name: file.name,
     length: file.size,

packages/file_selector/file_selector_web/pubspec.yaml

@@ -2,7 +2,7 @@ name: file_selector_web
 description: Web platform implementation of file_selector
 repository: https://github.com/flutter/packages/tree/main/packages/file_selector/file_selector_web
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+file_selector%22
-version: 0.9.4+2
+version: 0.9.5
 
 environment:
   sdk: ^3.9.0