toolbar buttons

lib/widgets/toolbar.dart

@@ -554,6 +554,69 @@ class _BackgroundColorButtonState extends State<BackgroundColorButton> {
   }
 }
 
+class IndentButton extends StatefulWidget {
+  final IconData icon;
+
+  final QuillController controller;
+
+  IndentButton({Key key, @required this.icon, @required this.controller})
+      : assert(icon != null),
+        assert(controller != null),
+        super(key: key);
+
+  @override
+  _IndentButtonState createState() => _IndentButtonState();
+}
+
+class _IndentButtonState extends State<IndentButton> {
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final iconColor = theme.iconTheme.color;
+    final fillColor = theme.canvasColor;
+    return QuillIconButton(
+      highlightElevation: 0,
+      hoverElevation: 0,
+      size: 32,
+      icon: Icon(widget.icon, size: 18, color: iconColor),
+      fillColor: fillColor,
+//      onPressed: ,
+    );
+  }
+}
+
+class ClearFormatButton extends StatefulWidget {
+  final IconData icon;
+
+  final QuillController controller;
+
+  ClearFormatButton({Key key, @required this.icon, @required this.controller})
+      : assert(icon != null),
+        assert(controller != null),
+        super(key: key);
+
+  @override
+  _ClearFormatButtonState createState() => _ClearFormatButtonState();
+}
+
+class _ClearFormatButtonState extends State<ClearFormatButton> {
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final iconColor = theme.iconTheme.color;
+    final fillColor = theme.canvasColor;
+    return QuillIconButton(
+      highlightElevation: 0,
+      hoverElevation: 0,
+      size: 32,
+      icon: Icon(widget.icon, size: 18, color: iconColor),
+      fillColor: fillColor,
+//      onPressed: ,
+    );
+  }
+}
+
+
 class QuillToolbar extends StatefulWidget implements PreferredSizeWidget {
   final List<Widget> children;
 
@@ -568,11 +631,13 @@ class QuillToolbar extends StatefulWidget implements PreferredSizeWidget {
       bool showStrikeThrough = true,
       bool showColorButton = true,
       bool showBackgroundColorButton = true,
+      bool showClearFormat = true,
       bool showHeaderStyle = true,
       bool showListNumbers = true,
       bool showListBullets = true,
       bool showCodeBlock = true,
       bool showQuote = true,
+      bool showIndent = true,
       bool showLink = true,
       bool showHorizontalRule = false,
       UploadFileCallback uploadFileCallback}) {
@@ -629,6 +694,14 @@ class QuillToolbar extends StatefulWidget implements PreferredSizeWidget {
         ),
       ),
       SizedBox(width: 1),
+      Visibility(
+        visible: showClearFormat,
+        child: ClearFormatButton(
+          icon: Icons.format_clear,
+          controller: controller,
+        ),
+      ),
+      SizedBox(width: 1),
       Visibility(
         visible: uploadFileCallback != null,
         child: ImageButton(
@@ -692,6 +765,13 @@ class QuillToolbar extends StatefulWidget implements PreferredSizeWidget {
           icon: Icons.format_quote,
         ),
       ),
+      Visibility(
+        visible: showIndent,
+        child: IndentButton(
+          icon: Icons.format_indent_increase,
+          controller: controller,
+        ),
+      ),
       Visibility(
           visible: showQuote,
           child: VerticalDivider(