From 04ed863a6dd3a4b14bc760ff741ca516764b567f Mon Sep 17 00:00:00 2001
From: singerdmx <singerdmx@gmail.com>
Date: Tue, 15 Dec 2020 22:26:13 -0800
Subject: [PATCH] Update Style class

---
 lib/models/documents/attribute.dart |  2 ++
 lib/models/documents/style.dart     | 14 ++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/lib/models/documents/attribute.dart b/lib/models/documents/attribute.dart
index 3159ee20..f3e8715c 100644
--- a/lib/models/documents/attribute.dart
+++ b/lib/models/documents/attribute.dart
@@ -41,6 +41,8 @@ class Attribute<T> {
 
   static BlockQuoteAttribute blockQuoteAttribute = BlockQuoteAttribute();
 
+  bool get isInline => scope == AttributeScope.INLINE;
+
   static Attribute fromKeyValue(String key, dynamic value) {
     if (!_registry.containsKey(key)) {
       throw ArgumentError.value(key, 'key "$key" not found.');
diff --git a/lib/models/documents/style.dart b/lib/models/documents/style.dart
index 43025310..490f6107 100644
--- a/lib/models/documents/style.dart
+++ b/lib/models/documents/style.dart
@@ -19,4 +19,18 @@ class Style {
     });
     return Style.attr(result);
   }
+
+  Iterable<String> get keys => _attributes.keys;
+
+  Iterable<Attribute> get values => _attributes.values;
+
+  bool get isEmpty => _attributes.isEmpty;
+
+  bool get isNotEmpty => _attributes.isNotEmpty;
+
+  bool get isInline => isNotEmpty && values.every((item) => item.isInline);
+
+  Attribute get single => _attributes.values.single;
+
+  bool containsKey(String key) => _attributes.containsKey(key);
 }