refactor(gh): reactions

lib/models/theme.dart

@@ -262,64 +262,6 @@ class ThemeModel with ChangeNotifier {
     //   );
   }
 
-  Future<T> showDialogOptions<T>(
-      BuildContext context, List<DialogOption<T>> options) {
-    var title = Text('Pick your reaction');
-    var cancelWidget = Text('Cancel');
-
-    switch (theme) {
-      case AppThemeType.cupertino:
-        return showCupertinoDialog<T>(
-          context: context,
-          builder: (BuildContext context) {
-            return CupertinoAlertDialog(
-              title: title,
-              actions: options.map((option) {
-                return CupertinoDialogAction(
-                  child: option.widget,
-                  onPressed: () {
-                    Navigator.pop(context, option.value);
-                  },
-                );
-              }).toList()
-                ..add(
-                  CupertinoDialogAction(
-                    child: cancelWidget,
-                    isDestructiveAction: true,
-                    onPressed: () {
-                      Navigator.pop(context, null);
-                    },
-                  ),
-                ),
-            );
-          },
-        );
-      default:
-        return showDialog(
-          context: context,
-          builder: (BuildContext context) {
-            return SimpleDialog(
-              title: title,
-              children: options.map<Widget>((option) {
-                return SimpleDialogOption(
-                  child: option.widget,
-                  onPressed: () {
-                    Navigator.pop(context, option.value);
-                  },
-                );
-              }).toList()
-                ..add(SimpleDialogOption(
-                  child: cancelWidget,
-                  onPressed: () {
-                    Navigator.pop(context, null);
-                  },
-                )),
-            );
-          },
-        );
-    }
-  }
-
   static Timer _debounce;
   String _selectedItem;
 

lib/widgets/comment_item.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:git_touch/models/auth.dart';
 import 'package:git_touch/models/theme.dart';
+import 'package:git_touch/widgets/action_button.dart';
 import 'package:git_touch/widgets/markdown_view.dart';
 import 'package:provider/provider.dart';
 import 'package:timeago/timeago.dart' as timeago;
@@ -37,9 +38,10 @@ class _GhEmojiActionState extends State<GhEmojiAction> {
 
   get payload => widget.payload;
 
-  onReaction(String emojiKey, bool isRemove) async {
+  onReaction(String emojiKey) async {
     if (emojiKey == null) return;
 
+    final isRemove = _hasReacted(emojiKey);
     var id = payload['id'] as String;
     var operation = isRemove ? 'remove' : 'add';
     await Provider.of<AuthModel>(context).query('''
@@ -75,7 +77,7 @@ mutation {
 
           return Link(
             onTap: () {
-              onReaction(emojiKey, _hasReacted(emojiKey));
+              onReaction(emojiKey);
             },
             child: Container(
               padding: EdgeInsets.all(4),
@@ -95,20 +97,18 @@ mutation {
         }),
         Link(
           onTap: () async {
-            final result = await theme.showDialogOptions(
+            await theme.showActions(
               context,
               emojiMap.entries.map((entry) {
-                var emojiKey = entry.key;
-                return DialogOption(
-                  value: emojiKey,
-                  widget: Container(
-                    decoration: _getDecorationByKey(emojiKey),
-                    child: Text(emojiKey + ' ' + entry.value),
-                  ),
+                final emojiKey = entry.key;
+                return ActionItem(
+                  text: emojiKey + ' ' + entry.value,
+                  onTap: (_) {
+                    onReaction(emojiKey);
+                  },
                 );
               }).toList(),
             );
-            onReaction(result, _hasReacted(result));
           },
           child: Container(
             padding: EdgeInsets.all(4),