fix ordered list numeration with several lists in document (#1163)

lib/src/widgets/raw_editor.dart

@@ -756,13 +756,28 @@ class RawEditorState extends EditorState
   List<Widget> _buildChildren(Document doc, BuildContext context) {
     final result = <Widget>[];
     final indentLevelCounts = <int, int>{};
+    // this need for several ordered list in document
+    // we need to reset indents Map, if list finished
+    // List finished when there is node without Attribute.ol in styles
+    // So in this case we set clearIndents=true and send it
+    // to the next EditableTextBlock
+    var prevNodeOl = false;
+    var clearIndents = false;
+
     for (final node in doc.root.children) {
+      final attrs = node.style.attributes;
+
+      if (prevNodeOl && attrs[Attribute.list.key] != Attribute.ol) {
+        clearIndents = true;
+      }
+
+      prevNodeOl = attrs[Attribute.list.key] == Attribute.ol;
+
       if (node is Line) {
         final editableTextLine = _getEditableTextLineFromNode(node, context);
         result.add(Directionality(
             textDirection: getDirectionOfNode(node), child: editableTextLine));
       } else if (node is Block) {
-        final attrs = node.style.attributes;
         final editableTextBlock = EditableTextBlock(
             block: node,
             controller: controller,
@@ -782,11 +797,14 @@ class RawEditorState extends EditorState
             onLaunchUrl: widget.onLaunchUrl,
             cursorCont: _cursorCont,
             indentLevelCounts: indentLevelCounts,
+            clearIndents: clearIndents,
             onCheckboxTap: _handleCheckboxTap,
             readOnly: widget.readOnly,
             customStyleBuilder: widget.customStyleBuilder);
         result.add(Directionality(
             textDirection: getDirectionOfNode(node), child: editableTextBlock));
+
+        clearIndents = false;
       } else {
         throw StateError('Unreachable.');
       }

lib/src/widgets/style_widgets/number_point.dart

@@ -31,6 +31,7 @@ class QuillNumberPoint extends StatelessWidget {
     int? level = 0;
     if (!attrs.containsKey(Attribute.indent.key) && indentLevelCounts.isEmpty) {
       indentLevelCounts.clear();
+      indentLevelCounts[0] = 1;
       return Container(
         alignment: AlignmentDirectional.topEnd,
         width: width,

lib/src/widgets/text_block.dart

@@ -68,6 +68,7 @@ class EditableTextBlock extends StatelessWidget {
       required this.linkActionPicker,
       required this.cursorCont,
       required this.indentLevelCounts,
+      required this.clearIndents,
       required this.onCheckboxTap,
       required this.readOnly,
       this.onLaunchUrl,
@@ -91,6 +92,7 @@ class EditableTextBlock extends StatelessWidget {
   final CustomStyleBuilder? customStyleBuilder;
   final CursorCont cursorCont;
   final Map<int, int> indentLevelCounts;
+  final bool clearIndents;
   final Function(int, bool) onCheckboxTap;
   final bool readOnly;
 
@@ -107,7 +109,7 @@ class EditableTextBlock extends StatelessWidget {
         decoration: _getDecorationForBlock(block, defaultStyles) ??
             const BoxDecoration(),
         contentPadding: contentPadding,
-        children: _buildChildren(context, indentLevelCounts));
+        children: _buildChildren(context, indentLevelCounts, clearIndents));
   }
 
   BoxDecoration? _getDecorationForBlock(
@@ -122,11 +124,14 @@ class EditableTextBlock extends StatelessWidget {
     return null;
   }
 
-  List<Widget> _buildChildren(
+  List<Widget> _buildChildren(BuildContext context,
-      BuildContext context, Map<int, int> indentLevelCounts) {
+      Map<int, int> indentLevelCounts, bool clearIndents) {
     final defaultStyles = QuillStyles.getStyles(context, false);
     final count = block.children.length;
     final children = <Widget>[];
+    if (clearIndents) {
+      indentLevelCounts.clear();
+    }
     var index = 0;
     for (final line in Iterable.castFrom<dynamic, Line>(block.children)) {
       index++;