Improved post visibility picker dialog

lib/ui/dialogs/post_visibility_picker_dialog.dart

@@ -9,7 +9,7 @@ import 'package:meta/meta.dart';
 /// @author Pierre HUBERT
 
 /// Show post visibility level picker and return selected visibility level
-Future<PostVisibilityLevel> showPostVisibilityPicker({
+Future<PostVisibilityLevel> showPostVisibilityPickerDialog({
   @required BuildContext context,
   @required PostVisibilityLevel initialLevel,
   @required bool isGroup,
@@ -20,11 +20,28 @@ Future<PostVisibilityLevel> showPostVisibilityPicker({
 
   final newLevel = await showDialog<PostVisibilityLevel>(
     context: context,
-    builder: (c) => AlertDialog(
-          title: Text(tr("Select new post visibility level")),
+    builder: (c) => _PostVisibilityPickerWidget(
+      isGroup: isGroup,
+    ),
+  );
 
-          // Show all options
-          content: Column(
+  return newLevel == null ? initialLevel : newLevel;
+}
+
+class _PostVisibilityPickerWidget extends StatelessWidget {
+  final bool isGroup;
+
+  const _PostVisibilityPickerWidget({Key key, @required this.isGroup})
+      : super(key: key);
+
+  @override
+  Widget build(BuildContext c) => AlertDialog(
+        title: Text(tr("Select new post visibility level")),
+
+        // Show all options
+        content: ConstrainedBox(
+          constraints: BoxConstraints(maxHeight: 200),
+          child: Column(
             children: <Widget>[
               // Public
               PostVisibilityLevelTile(
@@ -58,17 +75,15 @@ Future<PostVisibilityLevel> showPostVisibilityPicker({
               ),
             ],
           ),
-
-          // Dialog actions
-          actions: <Widget>[
-            // Cancel
-            TextButton(
-              child: Text(tr("Cancel").toUpperCase()),
-              onPressed: () => Navigator.pop(c, null),
-            ),
-          ],
         ),
-  );
 
-  return newLevel == null ? initialLevel : newLevel;
+        // Dialog actions
+        actions: <Widget>[
+          // Cancel
+          TextButton(
+            child: Text(tr("Cancel").toUpperCase()),
+            onPressed: () => Navigator.pop(c, null),
+          ),
+        ],
+      );
 }

lib/ui/tiles/post_tile.dart

@@ -10,6 +10,7 @@ import 'package:comunic/models/comment.dart';
 import 'package:comunic/models/new_comment.dart';
 import 'package:comunic/models/post.dart';
 import 'package:comunic/models/user.dart';
+import 'package:comunic/ui/dialogs/post_visibility_picker_dialog.dart';
 import 'package:comunic/ui/tiles/comment_tile.dart';
 import 'package:comunic/ui/widgets/account_image_widget.dart';
 import 'package:comunic/ui/widgets/countdown_widget.dart';
@@ -22,7 +23,6 @@ import 'package:comunic/utils/date_utils.dart';
 import 'package:comunic/utils/files_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
 import 'package:comunic/utils/navigation_utils.dart';
-import 'package:comunic/utils/post_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
@@ -573,7 +573,7 @@ class _PostTileState extends State<PostTile> {
 
   /// Update post visibility level
   Future<void> updatePostVisibilityLevel() async {
-    final newLevel = await showPostVisibilityPicker(
+    final newLevel = await showPostVisibilityPickerDialog(
       context: context,
       initialLevel: widget.post.visibilityLevel,
       isGroup: widget.post.isGroupPost,

lib/ui/widgets/post_create_form_widget.dart

@@ -6,10 +6,10 @@ import 'package:comunic/models/new_post.dart';
 import 'package:comunic/ui/dialogs/input_url_dialog.dart';
 import 'package:comunic/ui/dialogs/input_youtube_link_dialog.dart';
 import 'package:comunic/ui/dialogs/new_survey_dialog.dart';
+import 'package:comunic/ui/dialogs/post_visibility_picker_dialog.dart';
 import 'package:comunic/ui/widgets/post_container_widget.dart';
 import 'package:comunic/utils/files_utils.dart';
 import 'package:comunic/utils/intl_utils.dart';
-import 'package:comunic/utils/post_utils.dart';
 import 'package:comunic/utils/ui_utils.dart';
 import 'package:file_picker/file_picker.dart';
 import 'package:flutter/material.dart';
@@ -219,7 +219,7 @@ class _PostCreateFormWidgetState extends State<PostCreateFormWidget> {
 
   /// Change post visibility level
   Future<void> _changeVisibilityLevel() async {
-    final newLevel = await showPostVisibilityPicker(
+    final newLevel = await showPostVisibilityPickerDialog(
       context: context,
       initialLevel: _postVisibilityLevel,
       isGroup: widget.postTarget == PostTarget.GROUP_PAGE,