Merge branch 'singerdmx:master' into custom-video-player-changes

CHANGELOG.md

@@ -1,3 +1,139 @@
+# [3.0.4]
+* Add maxContentWidth constraint to editor.
+
+# [3.0.3]
+* Do not show caret on screen when the editor is not focused.
+
+# [3.0.2]
+* Fix launch link for read-only mode.
+
+## [3.0.1]
+* Handle null value of Attribute.link.
+
+## [3.0.0]
+* Launch link improvements.
+* Removed QuillSimpleViewer.
+
+## [2.5.2]
+* Skip image when pasting.
+
+## [2.5.1]
+* Bug fix for Desktop `Shift` + `Click` support.
+
+## [2.5.0]
+* Update checkbox list.
+
+## [2.4.1]
+* Desktop selection improvements.
+
+## [2.4.0]
+* Improve inline code style.
+
+## [2.3.3]
+* Improves selection rects to have consistent height regardless of individual segment text styles.
+
+## [2.3.2]
+* Allow disabling floating cursor.
+
+## [2.3.1]
+* Preserve last newline character on delete.
+
+## [2.3.0]
+* Massive changes to support flutter 2.8.
+
+## [2.2.2]
+* iOS - floating cursor.
+
+## [2.2.1]
+* Bug fix for imports supporting flutter 2.8.
+
+## [2.2.0]
+* Support flutter 2.8.
+
+## [2.1.1]
+* Add methods of clearing editor and moving cursor.
+
+## [2.1.0]
+* Add delete handler.
+
+## [2.0.23]
+* Support custom replaceText handler.
+
+## [2.0.22]
+* Fix attribute compare and fix font size parsing.
+
+## [2.0.21]
+* Handle click on embed object.
+
+## [2.0.20]
+* Improved UX/UI of Image widget.
+
+## [2.0.19]
+* When uploading a video, applying indicator.
+
+## [2.0.18]
+* Make toolbar dividers optional.
+
+## [2.0.17]
+* Allow alignment of the toolbar icons to match WrapAlignment.
+
+## [2.0.16]
+* Add hide / show alignment buttons.
+
+## [2.0.15]
+* Implement change cursor to SystemMouseCursors.click when hovering a link styled text.
+
+## [2.0.14]
+* Enable customize the checkbox widget using DefaultListBlockStyle style.
+
+## [2.0.13]
+* Improve the scrolling performance by reducing the repaint areas.
+
+## [2.0.12]
+* Fix the selection effect can't be seen as the textLine with background color.
+
+## [2.0.11]
+* Fix visibility of text selection handlers on scroll.
+
+## [2.0.10]
+* cursorConnt.color notify the text_line to repaint if it was disposed.
+
+## [2.0.9]
+* Improve UX when trying to add a link.
+
+## [2.0.8]
+* Adding translations to the toolbar.
+
+## [2.0.7]
+* Added theming options for toolbar icons and LinkDialog.
+
+## [2.0.6]
+* Avoid runtime error when placed inside TabBarView.
+
+## [2.0.5]
+* Support inline code formatting.
+
+## [2.0.4]
+* Enable history shortcuts for desktop.
+
+## [2.0.3]
+* Fix cursor when line contains image.
+
+## [2.0.2]
+* Address KeyboardListener class name conflict.
+
+## [2.0.1]
+* Upgrade flutter_colorpicker to 0.5.0.
+
+## [2.0.0]
+* Text Alignment functions + Block Format standards.
+
+## [1.9.6]
+* Support putting QuillEditor inside a Scrollable view.
+
+## [1.9.5]
+* Skip image when pasting.
+
 ## [1.9.4]
 * Bug fix for cursor position when tapping at the end of line with image(s).
 

README.md

@@ -87,14 +87,14 @@ The `QuillToolbar` class lets you customise which formatting options are availab
 
 ## Web
 
-For web development, use `flutter config --enable-web` for flutter and use [ReactQuill] for React.
+For web development, use `flutter config --enable-web` for flutter or use [ReactQuill] for React.
 
 It is required to provide `EmbedBuilder`, e.g. [defaultEmbedBuilderWeb](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/universal_ui/universal_ui.dart#L28).
-Also it is required to provide `webImagePickImpl`, e.g. [Sample Page](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/pages/home_page.dart#L212).
+Also it is required to provide `webImagePickImpl`, e.g. [Sample Page](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/pages/home_page.dart#L218).
 
 ## Desktop
 
-It is required to provide `filePickImpl` for toolbar image button, e.g. [Sample Page](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/pages/home_page.dart#L192).
+It is required to provide `filePickImpl` for toolbar image button, e.g. [Sample Page](https://github.com/singerdmx/flutter-quill/blob/master/example/lib/pages/home_page.dart#L198).
 
 ## Custom Size Image for Mobile
 
@@ -110,9 +110,26 @@ Define `mobileWidth`, `mobileHeight`, `mobileMargin`, `mobileAlignment` as follo
 }
 ```
 
-## Migrate Zefyr Data
+## Translation of toolbar
-
+The package offers translations for the quill toolbar, it will follow the system locale unless you set your own locale with:
-Check out [code](https://github.com/jwehrle/zefyr_quill_convert) and [doc](https://docs.google.com/document/d/1FUSrpbarHnilb7uDN5J5DDahaI0v1RMXBjj4fFSpSuY/edit?usp=sharing).
+```
+QuillToolbar(locale: Locale('fr'), ...)
+```
+Currently, translations are available for these locales:
+* `Locale('en')`
+* `Locale('ar')`
+* `Locale('de')`
+* `Locale('da')`
+* `Locale('fr')`
+* `Locale('zh', 'CN')`
+* `Locale('ko')`
+* `Locale('ru')`
+* `Locale('es')`
+* `Locale('tr')`
+* `Locale('uk')`
+
+### Contributing to translations
+The translation file is located at [lib/src/translations/toolbar.i18n.dart](lib/src/translations/toolbar.i18n.dart). Feel free to contribute your own translations, just copy the English translations map and replace the values with your translations. Then open a pull request so everyone can benefit from your translations!
 
 ---
 

example/lib/pages/home_page.dart

@@ -149,18 +149,23 @@ class _HomePageState extends State<HomePage> {
       onVideoPickCallback: _onVideoPickCallback,
       // uncomment to provide a custom "pick from" dialog.
       // mediaPickSettingSelector: _selectMediaPickSetting,
+      showAlignmentButtons: true,
     );
     if (kIsWeb) {
       toolbar = QuillToolbar.basic(
-          controller: _controller!,
+        controller: _controller!,
-          onImagePickCallback: _onImagePickCallback,
+        onImagePickCallback: _onImagePickCallback,
-          webImagePickImpl: _webImagePickImpl);
+        webImagePickImpl: _webImagePickImpl,
+        showAlignmentButtons: true,
+      );
     }
     if (_isDesktop()) {
       toolbar = QuillToolbar.basic(
-          controller: _controller!,
+        controller: _controller!,
-          onImagePickCallback: _onImagePickCallback,
+        onImagePickCallback: _onImagePickCallback,
-          filePickImpl: openFileSystemPickerForDesktop);
+        filePickImpl: openFileSystemPickerForDesktop,
+        showAlignmentButtons: true,
+      );
     }
 
     return SafeArea(

example/macos/Runner/DebugProfile.entitlements

@@ -8,5 +8,7 @@
 	<true/>
 	<key>com.apple.security.network.server</key>
 	<true/>
+	<key>com.apple.security.network.client</key>
+	<true/>
 </dict>
 </plist>

example/test/widget_test.dart

@@ -5,9 +5,9 @@
 // gestures. You can also use WidgetTester to find child widgets in the widget
 // tree, read text, and verify that the values of widget properties are correct.
 
+import 'package:app/main.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:app/main.dart';
 
 void main() {
   testWidgets('Counter increments smoke test', (tester) async {

example/windows/flutter/generated_plugin_registrant.cc

@@ -4,9 +4,9 @@
 
 #include "generated_plugin_registrant.h"
 
-#include <url_launcher_windows/url_launcher_plugin.h>
+#include <url_launcher_windows/url_launcher_windows.h>
 
 void RegisterPlugins(flutter::PluginRegistry* registry) {
-  UrlLauncherPluginRegisterWithRegistrar(
+  UrlLauncherWindowsRegisterWithRegistrar(
-      registry->GetRegistrarForPlugin("UrlLauncherPlugin"));
+      registry->GetRegistrarForPlugin("UrlLauncherWindows"));
 }

lib/flutter_quill.dart

@@ -5,7 +5,11 @@ export 'src/models/documents/document.dart';
 export 'src/models/documents/nodes/embed.dart';
 export 'src/models/documents/nodes/leaf.dart';
 export 'src/models/quill_delta.dart';
+export 'src/models/themes/quill_dialog_theme.dart';
+export 'src/models/themes/quill_icon_theme.dart';
 export 'src/widgets/controller.dart';
 export 'src/widgets/default_styles.dart';
 export 'src/widgets/editor.dart';
+export 'src/widgets/link.dart' show LinkActionPickerDelegate, LinkMenuAction;
+export 'src/widgets/style_widgets/style_widgets.dart';
 export 'src/widgets/toolbar.dart';

lib/src/models/documents/attribute.dart

@@ -19,8 +19,10 @@ class Attribute<T> {
   static final Map<String, Attribute> _registry = LinkedHashMap.of({
     Attribute.bold.key: Attribute.bold,
     Attribute.italic.key: Attribute.italic,
+    Attribute.small.key: Attribute.small,
     Attribute.underline.key: Attribute.underline,
     Attribute.strikeThrough.key: Attribute.strikeThrough,
+    Attribute.inlineCode.key: Attribute.inlineCode,
     Attribute.font.key: Attribute.font,
     Attribute.size.key: Attribute.size,
     Attribute.link.key: Attribute.link,
@@ -37,16 +39,21 @@ class Attribute<T> {
     Attribute.height.key: Attribute.height,
     Attribute.style.key: Attribute.style,
     Attribute.token.key: Attribute.token,
+    Attribute.script.key: Attribute.script,
   });
 
   static final BoldAttribute bold = BoldAttribute();
 
   static final ItalicAttribute italic = ItalicAttribute();
 
+  static final SmallAttribute small = SmallAttribute();
+
   static final UnderlineAttribute underline = UnderlineAttribute();
 
   static final StrikeThroughAttribute strikeThrough = StrikeThroughAttribute();
 
+  static final InlineCodeAttribute inlineCode = InlineCodeAttribute();
+
   static final FontAttribute font = FontAttribute(null);
 
   static final SizeAttribute size = SizeAttribute(null);
@@ -79,9 +86,12 @@ class Attribute<T> {
 
   static final TokenAttribute token = TokenAttribute('');
 
+  static final ScriptAttribute script = ScriptAttribute('');
+
   static final Set<String> inlineKeys = {
     Attribute.bold.key,
     Attribute.italic.key,
+    Attribute.small.key,
     Attribute.underline.key,
     Attribute.strikeThrough.key,
     Attribute.link.key,
@@ -107,6 +117,13 @@ class Attribute<T> {
     Attribute.indent.key,
   });
 
+  static final Set<String> exclusiveBlockKeys = LinkedHashSet.of({
+    Attribute.header.key,
+    Attribute.list.key,
+    Attribute.codeBlock.key,
+    Attribute.blockQuote.key,
+  });
+
   static Attribute<int?> get h1 => HeaderAttribute(level: 1);
 
   static Attribute<int?> get h2 => HeaderAttribute(level: 2);
@@ -217,6 +234,10 @@ class ItalicAttribute extends Attribute<bool> {
   ItalicAttribute() : super('italic', AttributeScope.INLINE, true);
 }
 
+class SmallAttribute extends Attribute<bool> {
+  SmallAttribute() : super('small', AttributeScope.INLINE, true);
+}
+
 class UnderlineAttribute extends Attribute<bool> {
   UnderlineAttribute() : super('underline', AttributeScope.INLINE, true);
 }
@@ -225,6 +246,10 @@ class StrikeThroughAttribute extends Attribute<bool> {
   StrikeThroughAttribute() : super('strike', AttributeScope.INLINE, true);
 }
 
+class InlineCodeAttribute extends Attribute<bool> {
+  InlineCodeAttribute() : super('code', AttributeScope.INLINE, true);
+}
+
 class FontAttribute extends Attribute<String?> {
   FontAttribute(String? val) : super('font', AttributeScope.INLINE, val);
 }
@@ -290,3 +315,8 @@ class StyleAttribute extends Attribute<String?> {
 class TokenAttribute extends Attribute<String> {
   TokenAttribute(String val) : super('token', AttributeScope.IGNORE, val);
 }
+
+// `script` is supposed to be inline attribute but it is not supported yet
+class ScriptAttribute extends Attribute<String> {
+  ScriptAttribute(String val) : super('script', AttributeScope.IGNORE, val);
+}

lib/src/models/documents/nodes/container.dart

@@ -94,7 +94,7 @@ abstract class Container<T extends Node?> extends Node {
 
     for (final node in children) {
       final len = node.length;
-      if (offset < len || (inclusive && offset == len && node.isLast)) {
+      if (offset < len || (inclusive && offset == len)) {
         return ChildQuery(node, offset);
       }
       offset -= len;

lib/src/models/documents/nodes/embed.dart

@@ -19,7 +19,7 @@ class Embeddable {
 
   static Embeddable fromJson(Map<String, dynamic> json) {
     final m = Map<String, dynamic>.from(json);
-    assert(m.length == 1, 'Embeddable map has one key');
+    assert(m.length == 1, 'Embeddable map must only have one key');
 
     return BlockEmbed(m.keys.first, m.values.first);
   }

lib/src/models/documents/nodes/line.dart

@@ -202,11 +202,26 @@ class Line extends Container<Leaf?> {
 
     if (parent is Block) {
       final parentStyle = (parent as Block).style.getBlocksExceptHeader();
-      if (blockStyle.value == null) {
+      // Ensure that we're only unwrapping the block only if we unset a single
+      // block format in the `parentStyle` and there are no more block formats
+      // left to unset.
+      if (blockStyle.value == null &&
+          parentStyle.containsKey(blockStyle.key) &&
+          parentStyle.length == 1) {
         _unwrap();
       } else if (!const MapEquality()
           .equals(newStyle.getBlocksExceptHeader(), parentStyle)) {
         _unwrap();
+        // Block style now can contain multiple attributes
+        if (newStyle.attributes.keys
+            .any(Attribute.exclusiveBlockKeys.contains)) {
+          parentStyle.removeWhere(
+              (key, attr) => Attribute.exclusiveBlockKeys.contains(key));
+        }
+        parentStyle.removeWhere(
+            (key, attr) => newStyle?.attributes.keys.contains(key) ?? false);
+        final parentStyleToMerge = Style.attr(parentStyle);
+        newStyle = newStyle.mergeAll(parentStyleToMerge);
         _applyBlockStyles(newStyle);
       } // else the same style, no-op.
     } else if (blockStyle.value != null) {
@@ -344,8 +359,8 @@ class Line extends Container<Leaf?> {
       result = result.mergeAll(node.style);
       var pos = node.length - data.offset;
       while (!node!.isLast && pos < local) {
-        node = node.next as Leaf?;
+        node = node.next as Leaf;
-        _handle(node!.style);
+        _handle(node.style);
         pos += node.length;
       }
     }
@@ -376,8 +391,8 @@ class Line extends Container<Leaf?> {
       result.add(node.style);
       var pos = node.length - data.offset;
       while (!node!.isLast && pos < local) {
-        node = node.next as Leaf?;
+        node = node.next as Leaf;
-        result.add(node!.style);
+        result.add(node.style);
         pos += node.length;
       }
     }

lib/src/models/documents/nodes/node.dart

@@ -14,7 +14,8 @@ import 'line.dart';
 /// The [offset] property is relative to [parent]. See also [documentOffset]
 /// which provides absolute offset of this node within the document.
 ///
-/// The current parent node is exposed by the [parent] property.
+/// The current parent node is exposed by the [parent] property. A node is
+/// considered [mounted] when the [parent] property is not `null`.
 abstract class Node extends LinkedListEntry<Node> {
   /// Current parent of this node. May be null if this node is not mounted.
   Container? parent;

lib/src/models/quill_delta.dart

@@ -150,6 +150,11 @@ class Operation {
 
   /// Returns `true` if [other] operation has the same attributes as this one.
   bool hasSameAttributes(Operation other) {
+    // treat null and empty equal
+    if ((_attributes?.isEmpty ?? true) &&
+        (other._attributes?.isEmpty ?? true)) {
+      return true;
+    }
     return _attributeEquality.equals(_attributes, other._attributes);
   }
 
@@ -603,9 +608,28 @@ class Delta {
     }
   }
 
+  /// Removes trailing '\n'
+  void _trimNewLine() {
+    if (isNotEmpty) {
+      final lastOp = _operations.last;
+      final lastOpData = lastOp.data;
+
+      if (lastOpData is String && lastOpData.endsWith('\n')) {
+        _operations.removeLast();
+        if (lastOpData.length > 1) {
+          insert(lastOpData.substring(0, lastOpData.length - 1),
+              lastOp.attributes);
+        }
+      }
+    }
+  }
+
   /// Concatenates [other] with this delta and returns the result.
-  Delta concat(Delta other) {
+  Delta concat(Delta other, {bool trimNewLine = false}) {
     final result = Delta.from(this);
+    if (trimNewLine) {
+      result._trimNewLine();
+    }
     if (other.isNotEmpty) {
       // In case first operation of other can be merged with last operation in
       // our list.

lib/src/models/rules/delete.dart

@@ -2,6 +2,7 @@ import '../documents/attribute.dart';
 import '../quill_delta.dart';
 import 'rule.dart';
 
+/// A heuristic rule for delete operations.
 abstract class DeleteRule extends Rule {
   const DeleteRule();
 
@@ -16,18 +17,42 @@ abstract class DeleteRule extends Rule {
   }
 }
 
+class EnsureLastLineBreakDeleteRule extends DeleteRule {
+  const EnsureLastLineBreakDeleteRule();
+
+  @override
+  Delta? applyRule(Delta document, int index,
+      {int? len, Object? data, Attribute? attribute}) {
+    final itr = DeltaIterator(document)..skip(index + len!);
+
+    return Delta()
+      ..retain(index)
+      ..delete(itr.hasNext ? len : len - 1);
+  }
+}
+
+/// Fallback rule for delete operations which simply deletes specified text
+/// range without any special handling.
 class CatchAllDeleteRule extends DeleteRule {
   const CatchAllDeleteRule();
 
   @override
   Delta applyRule(Delta document, int index,
       {int? len, Object? data, Attribute? attribute}) {
+    final itr = DeltaIterator(document)..skip(index + len!);
+
     return Delta()
       ..retain(index)
-      ..delete(len!);
+      ..delete(itr.hasNext ? len : len - 1);
   }
 }
 
+/// Preserves line format when user deletes the line's newline character
+/// effectively merging it with the next line.
+///
+/// This rule makes sure to apply all style attributes of deleted newline
+/// to the next available newline, which may reset any style attributes
+/// already present there.
 class PreserveLineStyleOnMergeRule extends DeleteRule {
   const PreserveLineStyleOnMergeRule();
 
@@ -44,6 +69,14 @@ class PreserveLineStyleOnMergeRule extends DeleteRule {
     final attrs = op.attributes;
 
     itr.skip(len! - 1);
+
+    if (!itr.hasNext) {
+      // User attempts to delete the last newline character, prevent it.
+      return Delta()
+        ..retain(index)
+        ..delete(len - 1);
+    }
+
     final delta = Delta()
       ..retain(index)
       ..delete(len);
@@ -66,13 +99,16 @@ class PreserveLineStyleOnMergeRule extends DeleteRule {
         attributes ??= <String, dynamic>{};
         attributes.addAll(attrs!);
       }
-      delta..retain(lineBreak)..retain(1, attributes);
+      delta
+        ..retain(lineBreak)
+        ..retain(1, attributes);
       break;
     }
     return delta;
   }
 }
 
+/// Prevents user from merging a line containing an embed with other lines.
 class EnsureEmbedLineRule extends DeleteRule {
   const EnsureEmbedLineRule();
 

lib/src/models/rules/format.dart

@@ -2,6 +2,7 @@ import '../documents/attribute.dart';
 import '../quill_delta.dart';
 import 'rule.dart';
 
+/// A heuristic rule for format (retain) operations.
 abstract class FormatRule extends Rule {
   const FormatRule();
 
@@ -16,6 +17,8 @@ abstract class FormatRule extends Rule {
   }
 }
 
+/// Produces Delta with line-level attributes applied strictly to
+/// newline characters.
 class ResolveLineFormatRule extends FormatRule {
   const ResolveLineFormatRule();
 
@@ -26,44 +29,81 @@ class ResolveLineFormatRule extends FormatRule {
       return null;
     }
 
-    var delta = Delta()..retain(index);
+    // Apply line styles to all newline characters within range of this
+    // retain operation.
+    var result = Delta()..retain(index);
     final itr = DeltaIterator(document)..skip(index);
     Operation op;
     for (var cur = 0; cur < len! && itr.hasNext; cur += op.length!) {
       op = itr.next(len - cur);
-      if (op.data is! String || !(op.data as String).contains('\n')) {
+      final opText = op.data is String ? op.data as String : '';
-        delta.retain(op.length!);
+      if (!opText.contains('\n')) {
+        result.retain(op.length!);
         continue;
       }
-      final text = op.data as String;
-      final tmp = Delta();
-      var offset = 0;
-
-      for (var lineBreak = text.indexOf('\n');
-          lineBreak >= 0;
-          lineBreak = text.indexOf('\n', offset)) {
-        tmp..retain(lineBreak - offset)..retain(1, attribute.toJson());
-        offset = lineBreak + 1;
-      }
-      tmp.retain(text.length - offset);
-      delta = delta.concat(tmp);
-    }
 
+      final delta = _applyAttribute(opText, op, attribute);
+      result = result.concat(delta);
+    }
+    // And include extra newline after retain
     while (itr.hasNext) {
       op = itr.next();
-      final text = op.data is String ? (op.data as String?)! : '';
+      final opText = op.data is String ? op.data as String : '';
-      final lineBreak = text.indexOf('\n');
+      final lf = opText.indexOf('\n');
-      if (lineBreak < 0) {
+      if (lf < 0) {
-        delta.retain(op.length!);
+        result.retain(op.length!);
         continue;
       }
-      delta..retain(lineBreak)..retain(1, attribute.toJson());
+
+      final delta = _applyAttribute(opText, op, attribute, firstOnly: true);
+      result = result.concat(delta);
       break;
     }
-    return delta;
+    return result;
+  }
+
+  Delta _applyAttribute(String text, Operation op, Attribute attribute,
+      {bool firstOnly = false}) {
+    final result = Delta();
+    var offset = 0;
+    var lf = text.indexOf('\n');
+    final removedBlocks = _getRemovedBlocks(attribute, op);
+    while (lf >= 0) {
+      final actualStyle = attribute.toJson()..addEntries(removedBlocks);
+      result
+        ..retain(lf - offset)
+        ..retain(1, actualStyle);
+
+      if (firstOnly) {
+        return result;
+      }
+
+      offset = lf + 1;
+      lf = text.indexOf('\n', offset);
+    }
+    // Retain any remaining characters in text
+    result.retain(text.length - offset);
+    return result;
+  }
+
+  Iterable<MapEntry<String, dynamic>> _getRemovedBlocks(
+      Attribute<dynamic> attribute, Operation op) {
+    // Enforce Block Format exclusivity by rule
+    if (!Attribute.exclusiveBlockKeys.contains(attribute.key)) {
+      return <MapEntry<String, dynamic>>[];
+    }
+
+    return op.attributes?.keys
+            .where((key) =>
+                Attribute.exclusiveBlockKeys.contains(key) &&
+                attribute.key != key &&
+                attribute.value != null)
+            .map((key) => MapEntry<String, dynamic>(key, null)) ??
+        [];
   }
 }
 
+/// Allows updating link format with collapsed selection.
 class FormatLinkAtCaretPositionRule extends FormatRule {
   const FormatLinkAtCaretPositionRule();
 
@@ -89,11 +129,15 @@ class FormatLinkAtCaretPositionRule extends FormatRule {
       return null;
     }
 
-    delta..retain(beg)..retain(retain!, attribute.toJson());
+    delta
+      ..retain(beg)
+      ..retain(retain!, attribute.toJson());
     return delta;
   }
 }
 
+/// Produces Delta with inline-level attributes applied too all characters
+/// except newlines.
 class ResolveInlineFormatRule extends FormatRule {
   const ResolveInlineFormatRule();
 
@@ -118,7 +162,9 @@ class ResolveInlineFormatRule extends FormatRule {
       }
       var pos = 0;
       while (lineBreak >= 0) {
-        delta..retain(lineBreak - pos, attribute.toJson())..retain(1);
+        delta
+          ..retain(lineBreak - pos, attribute.toJson())
+          ..retain(1);
         pos = lineBreak + 1;
         lineBreak = text.indexOf('\n', pos);
       }

lib/src/models/rules/insert.dart

@@ -5,6 +5,7 @@ import '../documents/style.dart';
 import '../quill_delta.dart';
 import 'rule.dart';
 
+/// A heuristic rule for insert operations.
 abstract class InsertRule extends Rule {
   const InsertRule();
 
@@ -18,6 +19,10 @@ abstract class InsertRule extends Rule {
   }
 }
 
+/// Preserves line format when user splits the line into two.
+///
+/// This rule ignores scenarios when the line is split on its edge, meaning
+/// a newline is inserted at the beginning or the end of a line.
 class PreserveLineStyleOnSplitRule extends InsertRule {
   const PreserveLineStyleOnSplitRule();
 
@@ -87,12 +92,12 @@ class PreserveBlockStyleOnInsertRule extends InsertRule {
       return null;
     }
 
-    Map<String, dynamic>? resetStyle;
+    final resetStyle = <String, dynamic>{};
     // If current line had heading style applied to it we'll need to move this
     // style to the newly inserted line before it and reset style of the
     // original line.
     if (lineStyle.containsKey(Attribute.header.key)) {
-      resetStyle = Attribute.header.toJson();
+      resetStyle.addAll(Attribute.header.toJson());
     }
 
     // Go over each inserted line and ensure block style is applied.
@@ -113,7 +118,7 @@ class PreserveBlockStyleOnInsertRule extends InsertRule {
     }
 
     // Reset style of the original newline character if needed.
-    if (resetStyle != null) {
+    if (resetStyle.isNotEmpty) {
       delta
         ..retain(nextNewLine.item2!)
         ..retain((nextNewLine.item1!.data as String).indexOf('\n'))
@@ -192,10 +197,17 @@ class AutoExitBlockRule extends InsertRule {
         attributes.keys.firstWhere(Attribute.blockKeysExceptHeader.contains);
     attributes[k] = null;
     // retain(1) should be '\n', set it with no attribute
-    return Delta()..retain(index + (len ?? 0))..retain(1, attributes);
+    return Delta()
+      ..retain(index + (len ?? 0))
+      ..retain(1, attributes);
   }
 }
 
+/// Resets format for a newly inserted line when insert occurred at the end
+/// of a line (right before a newline).
+///
+/// This handles scenarios when a new line is added when at the end of a
+/// heading line. The newly added line should be a regular paragraph.
 class ResetLineFormatOnNewLineRule extends InsertRule {
   const ResetLineFormatOnNewLineRule();
 
@@ -225,6 +237,7 @@ class ResetLineFormatOnNewLineRule extends InsertRule {
   }
 }
 
+/// Handles all format operations which manipulate embeds.
 class InsertEmbedsRule extends InsertRule {
   const InsertEmbedsRule();
 
@@ -273,6 +286,8 @@ class InsertEmbedsRule extends InsertRule {
   }
 }
 
+/// Applies link format to text segment (which looks like a link) when user
+/// inserts space character after it.
 class AutoFormatLinksRule extends InsertRule {
   const AutoFormatLinksRule();
 
@@ -312,6 +327,7 @@ class AutoFormatLinksRule extends InsertRule {
   }
 }
 
+/// Preserves inline styles when user inserts text inside formatted segment.
 class PreserveInlineStylesRule extends InsertRule {
   const PreserveInlineStylesRule();
 
@@ -357,6 +373,7 @@ class PreserveInlineStylesRule extends InsertRule {
   }
 }
 
+/// Fallback rule which simply inserts text as-is without any special handling.
 class CatchAllInsertRule extends InsertRule {
   const CatchAllInsertRule();
 

lib/src/models/rules/rule.dart

@@ -19,6 +19,8 @@ abstract class Rule {
 
   void validateArgs(int? len, Object? data, Attribute? attribute);
 
+  /// Applies heuristic rule to an operation on a [document] and returns
+  /// resulting [Delta].
   Delta? applyRule(Delta document, int index,
       {int? len, Object? data, Attribute? attribute});
 
@@ -46,6 +48,7 @@ class Rules {
     const EnsureEmbedLineRule(),
     const PreserveLineStyleOnMergeRule(),
     const CatchAllDeleteRule(),
+    const EnsureLastLineBreakDeleteRule()
   ]);
 
   static Rules getInstance() => _instance;

lib/src/models/themes/quill_dialog_theme.dart

@@ -0,0 +1,15 @@
+import 'package:flutter/material.dart';
+
+class QuillDialogTheme {
+  QuillDialogTheme(
+      {this.labelTextStyle, this.inputTextStyle, this.dialogBackgroundColor});
+
+  ///The text style to use for the label shown in the link-input dialog
+  final TextStyle? labelTextStyle;
+
+  ///The text style to use for the input text shown in the link-input dialog
+  final TextStyle? inputTextStyle;
+
+  ///The background color for the [LinkDialog()]
+  final Color? dialogBackgroundColor;
+}

lib/src/models/themes/quill_icon_theme.dart

@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+
+class QuillIconTheme {
+  const QuillIconTheme({
+    this.iconSelectedColor,
+    this.iconUnselectedColor,
+    this.iconSelectedFillColor,
+    this.iconUnselectedFillColor,
+    this.disabledIconColor,
+    this.disabledIconFillColor,
+  });
+
+  ///The color to use for selected icons in the toolbar
+  final Color? iconSelectedColor;
+
+  ///The color to use for unselected icons in the toolbar
+  final Color? iconUnselectedColor;
+
+  ///The fill color to use for the selected icons in the toolbar
+  final Color? iconSelectedFillColor;
+
+  ///The fill color to use for the unselected icons in the toolbar
+  final Color? iconUnselectedFillColor;
+
+  ///The color to use for disabled icons in the toolbar
+  final Color? disabledIconColor;
+
+  ///The fill color to use for disabled icons in the toolbar
+  final Color? disabledIconFillColor;
+}

lib/src/translations/toolbar.i18n.dart

@@ -0,0 +1,110 @@
+import 'package:i18n_extension/i18n_extension.dart';
+
+extension Localization on String {
+  static final _t = Translations.byLocale('en') +
+      {
+        'en': {
+          'Paste a link': 'Paste a link',
+          'Ok': 'Ok',
+          'Select Color': 'Select Color',
+          'Gallery': 'Gallery',
+          'Link': 'Link',
+          'Please first select some text to transform into a link.':
+              'Please first select some text to transform into a link.',
+        },
+        'ar': {
+          'Paste a link': 'نسخ الرابط',
+          'Ok': 'نعم',
+          'Select Color': 'اختار اللون',
+          'Gallery': 'الصور',
+          'Link': 'الرابط',
+          'Please first select some text to transform into a link.':
+              'يرجى اختيار نص للتحويل إلى رابط',
+        },
+        'da': {
+          'Paste a link': 'Indsæt link',
+          'Ok': 'Ok',
+          'Select Color': 'Vælg farve',
+          'Gallery': 'Galleri',
+          'Link': 'Link',
+          'Please first select some text to transform into a link.':
+              'Vælg venligst først noget tekst for at lave det om til et link.',
+        },
+        'de': {
+          'Paste a link': 'Link hinzufügen',
+          'Ok': 'Ok',
+          'Select Color': 'Farbe auswählen',
+          'Gallery': 'Gallerie',
+          'Link': 'Link',
+          'Please first select some text to transform into a link.':
+              'Markiere bitte zuerst einen Text, um diesen in einen Link zu '
+                  'verwandeln.',
+        },
+        'fr': {
+          'Paste a link': 'Coller un lien',
+          'Ok': 'Ok',
+          'Select Color': 'Choisir une couleur',
+          'Gallery': 'Galerie',
+          'Link': 'Lien',
+          'Please first select some text to transform into a link.':
+              "Veuillez d'abord sélectionner un texte à transformer en lien.",
+        },
+        'zh_CN': {
+          'Paste a link': '粘贴链接',
+          'Ok': '好',
+          'Select Color': '选择颜色',
+          'Gallery': '相簿',
+          'Link': '链接',
+          'Please first select some text to transform into a link.':
+              '请先选择一些要转化为链接的文本',
+        },
+        'ko': {
+          'Paste a link': '링크를 붙여넣어 주세요.',
+          'Ok': '확인',
+          'Select Color': '색상 선택',
+          'Gallery': '갤러리',
+          'Link': '링크',
+          'Please first select some text to transform into a link.':
+              '링크로 전환할 글자를 먼저 선택해주세요.',
+        },
+        'ru': {
+          'Paste a link': 'Вставить ссылку',
+          'Ok': 'ОК',
+          'Select Color': 'Выбрать цвет',
+          'Gallery': 'Галерея',
+          'Link': 'Ссылка',
+          'Please first select some text to transform into a link.':
+              'Выделите часть текста для создания ссылки.',
+        },
+        'es': {
+          'Paste a link': 'Pega un enlace',
+          'Ok': 'Ok',
+          'Select Color': 'Selecciona un color',
+          'Gallery': 'Galeria',
+          'Link': 'Enlace',
+          'Please first select some text to transform into a link.':
+              'Por favor selecciona primero un texto para transformarlo '
+                  'en un enlace',
+        },
+        'tr': {
+          'Paste a link': 'Bağlantıyı Yapıştır',
+          'Ok': 'Tamam',
+          'Select Color': 'Renk Seçin',
+          'Gallery': 'Galeri',
+          'Link': 'Bağlantı',
+          'Please first select some text to transform into a link.':
+              'Lütfen bağlantıya dönüştürmek için bir metin seçin.',
+        },
+        'uk': {
+          'Paste a link': 'Вставити посилання',
+          'Ok': 'ОК',
+          'Select Color': 'Вибрати колір',
+          'Gallery': 'Галерея',
+          'Link': 'Посилання',
+          'Please first select some text to transform into a link.':
+              'Виділіть текст для створення посилання.',
+        },
+      };
+
+  String get i18n => localize(this, _t);
+}

lib/src/utils/color.dart

@@ -1,5 +1,3 @@
-import 'dart:ui';
-
 import 'package:flutter/material.dart';
 
 Color stringToColor(String? s) {

lib/src/utils/diff_delta.dart

@@ -2,35 +2,6 @@ import 'dart:math' as math;
 
 import '../models/quill_delta.dart';
 
-const Set<int> WHITE_SPACE = {
-  0x9,
-  0xA,
-  0xB,
-  0xC,
-  0xD,
-  0x1C,
-  0x1D,
-  0x1E,
-  0x1F,
-  0x20,
-  0xA0,
-  0x1680,
-  0x2000,
-  0x2001,
-  0x2002,
-  0x2003,
-  0x2004,
-  0x2005,
-  0x2006,
-  0x2007,
-  0x2008,
-  0x2009,
-  0x200A,
-  0x202F,
-  0x205F,
-  0x3000
-};
-
 // Diff between two texts - old text and new text
 class Diff {
   Diff(this.start, this.deleted, this.inserted);

lib/src/utils/string_helper.dart

@@ -1,3 +1,5 @@
+import 'package:flutter/cupertino.dart';
+
 Map<String, String> parseKeyValuePairs(String s, Set<String> targetKeys) {
   final result = <String, String>{};
   final pairs = s.split(';');
@@ -14,3 +16,37 @@ Map<String, String> parseKeyValuePairs(String s, Set<String> targetKeys) {
 
   return result;
 }
+
+Alignment getAlignment(String? s) {
+  const _defaultAlignment = Alignment.center;
+  if (s == null) {
+    return _defaultAlignment;
+  }
+
+  final _index = [
+    'topLeft',
+    'topCenter',
+    'topRight',
+    'centerLeft',
+    'center',
+    'centerRight',
+    'bottomLeft',
+    'bottomCenter',
+    'bottomRight'
+  ].indexOf(s);
+  if (_index < 0) {
+    return _defaultAlignment;
+  }
+
+  return [
+    Alignment.topLeft,
+    Alignment.topCenter,
+    Alignment.topRight,
+    Alignment.centerLeft,
+    Alignment.center,
+    Alignment.centerRight,
+    Alignment.bottomLeft,
+    Alignment.bottomCenter,
+    Alignment.bottomRight
+  ][_index];
+}

lib/src/widgets/box.dart

@@ -119,4 +119,8 @@ abstract class RenderEditableBox extends RenderBox {
   /// Returns the [Rect] in local coordinates for the caret at the given text
   /// position.
   Rect getLocalRectForCaret(TextPosition position);
+
+  /// Returns the [Rect] of the caret prototype at the given text
+  /// position. [Rect] starts at origin.
+  Rect getCaretPrototype(TextPosition position);
 }

lib/src/widgets/controller.dart

@@ -10,11 +10,18 @@ import '../models/documents/style.dart';
 import '../models/quill_delta.dart';
 import '../utils/diff_delta.dart';
 
+typedef ReplaceTextCallback = bool Function(int index, int len, Object? data);
+typedef DeleteCallback = void Function(int cursorPosition, bool forward);
+
 class QuillController extends ChangeNotifier {
   QuillController({
     required this.document,
     required TextSelection selection,
-  }) : _selection = selection;
+    bool keepStyleOnNewLine = false,
+    this.onReplaceText,
+    this.onDelete,
+  })  : _selection = selection,
+        _keepStyleOnNewLine = keepStyleOnNewLine;
 
   factory QuillController.basic() {
     return QuillController(
@@ -26,10 +33,21 @@ class QuillController extends ChangeNotifier {
   /// Document managed by this controller.
   final Document document;
 
+  /// Tells whether to keep or reset the [toggledStyle]
+  /// when user adds a new line.
+  final bool _keepStyleOnNewLine;
+
   /// Currently selected text within the [document].
   TextSelection get selection => _selection;
   TextSelection _selection;
 
+  /// Custom [replaceText] handler
+  /// Return false to ignore the event
+  ReplaceTextCallback? onReplaceText;
+
+  /// Custom delete handler
+  DeleteCallback? onDelete;
+
   /// Store any styles attribute that got toggled by the tap of a button
   /// and that has not been applied yet.
   /// It gets reset after each format action within the [document].
@@ -79,7 +97,7 @@ class QuillController extends ChangeNotifier {
   }
 
   void _handleHistoryChange(int? len) {
-    if (len! > 0) {
+    if (len! != 0) {
       // if (this.selection.extentOffset >= document.length) {
       // // cursor exceeds the length of document, position it in the end
       // updateSelection(
@@ -104,11 +122,21 @@ class QuillController extends ChangeNotifier {
 
   bool get hasRedo => document.hasRedo;
 
+  /// clear editor
+  void clear() {
+    replaceText(0, plainTextEditingValue.text.length - 1, '',
+        const TextSelection.collapsed(offset: 0));
+  }
+
   void replaceText(
       int index, int len, Object? data, TextSelection? textSelection,
       {bool ignoreFocus = false}) {
     assert(data is String || data is Embeddable);
 
+    if (onReplaceText != null && !onReplaceText!(index, len, data)) {
+      return;
+    }
+
     Delta? delta;
     if (len > 0 || data is! String || data.isNotEmpty) {
       delta = document.replace(index, len, data);
@@ -135,7 +163,14 @@ class QuillController extends ChangeNotifier {
       }
     }
 
-    toggledStyle = Style();
+    if (_keepStyleOnNewLine) {
+      final style = getSelectionStyle();
+      final notInlineStyle = style.attributes.values.where((s) => !s.isInline);
+      toggledStyle = style.removeAll(notInlineStyle.toSet());
+    } else {
+      toggledStyle = Style();
+    }
+
     if (textSelection != null) {
       if (delta == null || delta.isEmpty) {
         _updateSelection(textSelection, ChangeSource.LOCAL);
@@ -162,6 +197,14 @@ class QuillController extends ChangeNotifier {
     ignoreFocusOnTextChange = false;
   }
 
+  /// Called in two cases:
+  /// forward == false && textBefore.isEmpty
+  /// forward == true && textAfter.isEmpty
+  /// Android only
+  /// see https://github.com/singerdmx/flutter-quill/discussions/514
+  void handleDelete(int cursorPosition, bool forward) =>
+      onDelete?.call(cursorPosition, forward);
+
   void formatText(int index, int len, Attribute? attribute) {
     if (len == 0 &&
         attribute!.isInline &&
@@ -183,6 +226,17 @@ class QuillController extends ChangeNotifier {
     formatText(selection.start, selection.end - selection.start, attribute);
   }
 
+  void moveCursorToStart() {
+    updateSelection(
+        const TextSelection.collapsed(offset: 0), ChangeSource.LOCAL);
+  }
+
+  void moveCursorToEnd() {
+    updateSelection(
+        TextSelection.collapsed(offset: plainTextEditingValue.text.length),
+        ChangeSource.LOCAL);
+  }
+
   void updateSelection(TextSelection textSelection, ChangeSource source) {
     _updateSelection(textSelection, source);
     notifyListeners();

lib/src/widgets/cursor.dart

@@ -131,6 +131,17 @@ class CursorCont extends ChangeNotifier {
   Timer? _cursorTimer;
   bool _targetCursorVisibility = false;
 
+  final ValueNotifier<TextPosition?> _floatingCursorTextPosition =
+      ValueNotifier(null);
+
+  ValueNotifier<TextPosition?> get floatingCursorTextPosition =>
+      _floatingCursorTextPosition;
+
+  void setFloatingCursorTextPosition(TextPosition? position) =>
+      _floatingCursorTextPosition.value = position;
+
+  bool get isFloatingCursorActive => floatingCursorTextPosition.value != null;
+
   CursorStyle _style;
   CursorStyle get style => _style;
   set style(CursorStyle value) {
@@ -228,13 +239,13 @@ class CursorCont extends ChangeNotifier {
 
 /// Paints the editing cursor.
 class CursorPainter {
-  CursorPainter(
+  CursorPainter({
-    this.editable,
+    required this.editable,
-    this.style,
+    required this.style,
-    this.prototype,
+    required this.prototype,
-    this.color,
+    required this.color,
-    this.devicePixelRatio,
+    required this.devicePixelRatio,
-  );
+  });
 
   final RenderContentProxyBox? editable;
   final CursorStyle style;
@@ -245,10 +256,11 @@ class CursorPainter {
   /// Paints cursor on [canvas] at specified [position].
   /// [offset] is global top left (x, y) of text line
   /// [position] is relative (x) in text line
-  void paint(Canvas canvas, Offset offset, TextPosition position) {
+  void paint(
+      Canvas canvas, Offset offset, TextPosition position, bool lineHasEmbed) {
     // relative (x, y) to global offset
     var relativeCaretOffset = editable!.getOffsetForCaret(position, prototype);
-    if (relativeCaretOffset == Offset.zero) {
+    if (lineHasEmbed && relativeCaretOffset == Offset.zero) {
       relativeCaretOffset = editable!.getOffsetForCaret(
           TextPosition(
               offset: position.offset - 1, affinity: position.affinity),
@@ -257,6 +269,7 @@ class CursorPainter {
       relativeCaretOffset =
           Offset(relativeCaretOffset.dx + 6, relativeCaretOffset.dy);
     }
+
     final caretOffset = relativeCaretOffset + offset;
     var caretRect = prototype.shift(caretOffset);
     if (style.offset != null) {

lib/src/widgets/default_styles.dart

@@ -1,7 +1,9 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 import 'package:tuple/tuple.dart';
 
+import '../../flutter_quill.dart';
+import '../../models/documents/style.dart';
+
 class QuillStyles extends InheritedWidget {
   const QuillStyles({
     required this.data,
@@ -26,6 +28,8 @@ class QuillStyles extends InheritedWidget {
   }
 }
 
+/// Style theme applied to a block of rich text, including single-line
+/// paragraphs.
 class DefaultTextBlockStyle {
   DefaultTextBlockStyle(
     this.style,
@@ -34,15 +38,100 @@ class DefaultTextBlockStyle {
     this.decoration,
   );
 
+  /// Base text style for a text block.
   final TextStyle style;
 
+  /// Vertical spacing around a text block.
   final Tuple2<double, double> verticalSpacing;
 
+  /// Vertical spacing for individual lines within a text block.
+  ///
   final Tuple2<double, double> lineSpacing;
 
+  /// Decoration of a text block.
+  ///
+  /// Decoration, if present, is painted in the content area, excluding
+  /// any [spacing].
   final BoxDecoration? decoration;
 }
 
+/// Theme data for inline code.
+class InlineCodeStyle {
+  InlineCodeStyle({
+    required this.style,
+    this.header1,
+    this.header2,
+    this.header3,
+    this.backgroundColor,
+    this.radius,
+  });
+
+  /// Base text style for an inline code.
+  final TextStyle style;
+
+  /// Style override for inline code in header level 1.
+  final TextStyle? header1;
+
+  /// Style override for inline code in headings level 2.
+  final TextStyle? header2;
+
+  /// Style override for inline code in headings level 3.
+  final TextStyle? header3;
+
+  /// Background color for inline code.
+  final Color? backgroundColor;
+
+  /// Radius used when paining the background.
+  final Radius? radius;
+
+  /// Returns effective style to use for inline code for the specified
+  /// [lineStyle].
+  TextStyle styleFor(Style lineStyle) {
+    if (lineStyle.containsKey(Attribute.h1.key)) {
+      return header1 ?? style;
+    }
+    if (lineStyle.containsKey(Attribute.h2.key)) {
+      return header2 ?? style;
+    }
+    if (lineStyle.containsKey(Attribute.h3.key)) {
+      return header3 ?? style;
+    }
+    return style;
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    if (other is! InlineCodeStyle) {
+      return false;
+    }
+    return other.style == style &&
+        other.header1 == header1 &&
+        other.header2 == header2 &&
+        other.header3 == header3 &&
+        other.backgroundColor == backgroundColor &&
+        other.radius == radius;
+  }
+
+  @override
+  int get hashCode =>
+      Object.hash(style, header1, header2, header3, backgroundColor, radius);
+}
+
+class DefaultListBlockStyle extends DefaultTextBlockStyle {
+  DefaultListBlockStyle(
+    TextStyle style,
+    Tuple2<double, double> verticalSpacing,
+    Tuple2<double, double> lineSpacing,
+    BoxDecoration? decoration,
+    this.checkboxUIBuilder,
+  ) : super(style, verticalSpacing, lineSpacing, decoration);
+
+  final QuillCheckboxBuilder? checkboxUIBuilder;
+}
+
 class DefaultStyles {
   DefaultStyles({
     this.h1,
@@ -51,8 +140,10 @@ class DefaultStyles {
     this.paragraph,
     this.bold,
     this.italic,
+    this.small,
     this.underline,
     this.strikeThrough,
+    this.inlineCode,
     this.link,
     this.color,
     this.placeHolder,
@@ -73,15 +164,19 @@ class DefaultStyles {
   final DefaultTextBlockStyle? paragraph;
   final TextStyle? bold;
   final TextStyle? italic;
+  final TextStyle? small;
   final TextStyle? underline;
   final TextStyle? strikeThrough;
+
+  /// Theme of inline code.
+  final InlineCodeStyle? inlineCode;
   final TextStyle? sizeSmall; // 'small'
   final TextStyle? sizeLarge; // 'large'
   final TextStyle? sizeHuge; // 'huge'
   final TextStyle? link;
   final Color? color;
   final DefaultTextBlockStyle? placeHolder;
-  final DefaultTextBlockStyle? lists;
+  final DefaultListBlockStyle? lists;
   final DefaultTextBlockStyle? quote;
   final DefaultTextBlockStyle? code;
   final DefaultTextBlockStyle? indent;
@@ -112,6 +207,12 @@ class DefaultStyles {
         throw UnimplementedError();
     }
 
+    final inlineCodeStyle = TextStyle(
+      fontSize: 14,
+      color: themeData.colorScheme.primaryVariant.withOpacity(0.8),
+      fontFamily: fontFamily,
+    );
+
     return DefaultStyles(
         h1: DefaultTextBlockStyle(
             defaultTextStyle.style.copyWith(
@@ -147,10 +248,25 @@ class DefaultStyles {
             baseStyle, const Tuple2(0, 0), const Tuple2(0, 0), null),
         bold: const TextStyle(fontWeight: FontWeight.bold),
         italic: const TextStyle(fontStyle: FontStyle.italic),
+        small: const TextStyle(fontSize: 12, color: Colors.black45),
         underline: const TextStyle(decoration: TextDecoration.underline),
         strikeThrough: const TextStyle(decoration: TextDecoration.lineThrough),
+        inlineCode: InlineCodeStyle(
+          backgroundColor: Colors.grey.shade100,
+          radius: const Radius.circular(3),
+          style: inlineCodeStyle,
+          header1: inlineCodeStyle.copyWith(
+            fontSize: 32,
+            fontWeight: FontWeight.w300,
+          ),
+          header2: inlineCodeStyle.copyWith(fontSize: 22),
+          header3: inlineCodeStyle.copyWith(
+            fontSize: 18,
+            fontWeight: FontWeight.w500,
+          ),
+        ),
         link: TextStyle(
-          color: themeData.accentColor,
+          color: themeData.colorScheme.secondary,
           decoration: TextDecoration.underline,
         ),
         placeHolder: DefaultTextBlockStyle(
@@ -162,8 +278,8 @@ class DefaultStyles {
             const Tuple2(0, 0),
             const Tuple2(0, 0),
             null),
-        lists: DefaultTextBlockStyle(
+        lists: DefaultListBlockStyle(
-            baseStyle, baseSpacing, const Tuple2(0, 6), null),
+            baseStyle, baseSpacing, const Tuple2(0, 6), null, null),
         quote: DefaultTextBlockStyle(
             TextStyle(color: baseStyle.color!.withOpacity(0.6)),
             baseSpacing,
@@ -205,8 +321,10 @@ class DefaultStyles {
         paragraph: other.paragraph ?? paragraph,
         bold: other.bold ?? bold,
         italic: other.italic ?? italic,
+        small: other.small ?? small,
         underline: other.underline ?? underline,
         strikeThrough: other.strikeThrough ?? strikeThrough,
+        inlineCode: other.inlineCode ?? inlineCode,
         link: other.link ?? link,
         color: other.color ?? color,
         placeHolder: other.placeHolder ?? placeHolder,

lib/src/widgets/delegate.dart

@@ -1,11 +1,8 @@
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
-import '../../flutter_quill.dart';
 
-import '../models/documents/nodes/leaf.dart';
+import '../../flutter_quill.dart';
-import 'editor.dart';
 import 'text_selection.dart';
 
 typedef EmbedBuilder = Widget Function(
@@ -21,29 +18,94 @@ abstract class EditorTextSelectionGestureDetectorBuilderDelegate {
   bool getSelectionEnabled();
 }
 
+/// Builds a [EditorTextSelectionGestureDetector] to wrap an [EditableText].
+///
+/// The class implements sensible defaults for many user interactions
+/// with an [EditableText] (see the documentation of the various gesture handler
+/// methods, e.g. [onTapDown], [onForcePressStart], etc.). Subclasses of
+/// [EditorTextSelectionGestureDetectorBuilder] can change the behavior
+/// performed in responds to these gesture events by overriding
+/// the corresponding handler methods of this class.
+///
+/// The resulting [EditorTextSelectionGestureDetector] to wrap an [EditableText]
+/// is obtained by calling [buildGestureDetector].
+///
+/// See also:
+///
+///  * [TextField], which uses a subclass to implement the Material-specific
+///    gesture logic of an [EditableText].
+///  * [CupertinoTextField], which uses a subclass to implement the
+///    Cupertino-specific gesture logic of an [EditableText].
 class EditorTextSelectionGestureDetectorBuilder {
-  EditorTextSelectionGestureDetectorBuilder(this.delegate);
+  /// Creates a [EditorTextSelectionGestureDetectorBuilder].
+  ///
+  /// The [delegate] must not be null.
+  EditorTextSelectionGestureDetectorBuilder({required this.delegate});
 
+  /// The delegate for this [EditorTextSelectionGestureDetectorBuilder].
+  ///
+  /// The delegate provides the builder with information about what actions can
+  /// currently be performed on the textfield. Based on this, the builder adds
+  /// the correct gesture handlers to the gesture detector.
+  @protected
   final EditorTextSelectionGestureDetectorBuilderDelegate delegate;
+
+  /// Whether to show the selection toolbar.
+  ///
+  /// It is based on the signal source when a [onTapDown] is called. This getter
+  /// will return true if current [onTapDown] event is triggered by a touch or
+  /// a stylus.
   bool shouldShowSelectionToolbar = true;
 
+  /// The [State] of the [EditableText] for which the builder will provide a
+  /// [EditorTextSelectionGestureDetector].
+  @protected
   EditorState? getEditor() {
     return delegate.getEditableTextKey().currentState;
   }
 
+  /// The [RenderObject] of the [EditableText] for which the builder will
+  /// provide a [EditorTextSelectionGestureDetector].
+  @protected
   RenderEditor? getRenderEditor() {
     return getEditor()!.getRenderEditor();
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onTapDown].
+  ///
+  /// By default, it forwards the tap to [RenderEditable.handleTapDown] and sets
+  /// [shouldShowSelectionToolbar] to true if the tap was initiated by a finger
+  /// or stylus.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onTapDown],
+  ///  which triggers this callback.
+  @protected
   void onTapDown(TapDownDetails details) {
     getRenderEditor()!.handleTapDown(details);
-
+    // The selection overlay should only be shown when the user is interacting
+    // through a touch screen (via either a finger or a stylus).
+    // A mouse shouldn't trigger the selection overlay.
+    // For backwards-compatibility, we treat a null kind the same as touch.
     final kind = details.kind;
     shouldShowSelectionToolbar = kind == null ||
         kind == PointerDeviceKind.touch ||
         kind == PointerDeviceKind.stylus;
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onForcePressStart].
+  ///
+  /// By default, it selects the word at the position of the force press,
+  /// if selection is enabled.
+  ///
+  /// This callback is only applicable when force press is enabled.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onForcePressStart],
+  ///  which triggers this callback.
+  @protected
   void onForcePressStart(ForcePressDetails details) {
     assert(delegate.getForcePressEnabled());
     shouldShowSelectionToolbar = true;
@@ -56,6 +118,18 @@ class EditorTextSelectionGestureDetectorBuilder {
     }
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onForcePressEnd].
+  ///
+  /// By default, it selects words in the range specified in [details] and shows
+  /// toolbar if it is necessary.
+  ///
+  /// This callback is only applicable when force press is enabled.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onForcePressEnd],
+  ///  which triggers this callback.
+  @protected
   void onForcePressEnd(ForcePressDetails details) {
     assert(delegate.getForcePressEnabled());
     getRenderEditor()!.selectWordsInRange(
@@ -68,40 +142,97 @@ class EditorTextSelectionGestureDetectorBuilder {
     }
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onSingleTapUp].
+  ///
+  /// By default, it selects word edge if selection is enabled.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onSingleTapUp], which triggers
+  ///    this callback.
+  @protected
   void onSingleTapUp(TapUpDetails details) {
     if (delegate.getSelectionEnabled()) {
       getRenderEditor()!.selectWordEdge(SelectionChangedCause.tap);
     }
   }
 
-  void onSingleTapCancel() {}
+  /// Handler for [EditorTextSelectionGestureDetector.onSingleTapCancel].
+  ///
+  /// By default, it services as place holder to enable subclass override.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onSingleTapCancel], which triggers
+  ///    this callback.
+  @protected
+  void onSingleTapCancel() {
+    /* Subclass should override this method if needed. */
+  }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onSingleLongTapStart].
+  ///
+  /// By default, it selects text position specified in [details] if selection
+  /// is enabled.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onSingleLongTapStart],
+  ///  which triggers this callback.
+  @protected
   void onSingleLongTapStart(LongPressStartDetails details) {
     if (delegate.getSelectionEnabled()) {
       getRenderEditor()!.selectPositionAt(
-        details.globalPosition,
+        from: details.globalPosition,
-        null,
+        cause: SelectionChangedCause.longPress,
-        SelectionChangedCause.longPress,
       );
     }
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onSingleLongTapMoveUpdate]
+  ///
+  /// By default, it updates the selection location specified in [details] if
+  /// selection is enabled.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onSingleLongTapMoveUpdate], which
+  ///    triggers this callback.
+  @protected
   void onSingleLongTapMoveUpdate(LongPressMoveUpdateDetails details) {
     if (delegate.getSelectionEnabled()) {
       getRenderEditor()!.selectPositionAt(
-        details.globalPosition,
+        from: details.globalPosition,
-        null,
+        cause: SelectionChangedCause.longPress,
-        SelectionChangedCause.longPress,
       );
     }
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onSingleLongTapEnd].
+  ///
+  /// By default, it shows toolbar if necessary.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onSingleLongTapEnd],
+  ///  which triggers this callback.
+  @protected
   void onSingleLongTapEnd(LongPressEndDetails details) {
     if (shouldShowSelectionToolbar) {
       getEditor()!.showToolbar();
     }
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onDoubleTapDown].
+  ///
+  /// By default, it selects a word through [RenderEditable.selectWord] if
+  /// selectionEnabled and shows toolbar if necessary.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onDoubleTapDown],
+  ///  which triggers this callback.
+  @protected
   void onDoubleTapDown(TapDownDetails details) {
     if (delegate.getSelectionEnabled()) {
       getRenderEditor()!.selectWord(SelectionChangedCause.tap);
@@ -111,27 +242,56 @@ class EditorTextSelectionGestureDetectorBuilder {
     }
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onDragSelectionStart].
+  ///
+  /// By default, it selects a text position specified in [details].
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onDragSelectionStart],
+  ///  which triggers this callback.
+  @protected
   void onDragSelectionStart(DragStartDetails details) {
-    getRenderEditor()!.selectPositionAt(
+    getRenderEditor()!.handleDragStart(details);
-      details.globalPosition,
-      null,
-      SelectionChangedCause.drag,
-    );
   }
 
+  /// Handler for [EditorTextSelectionGestureDetector.onDragSelectionUpdate].
+  ///
+  /// By default, it updates the selection location specified in the provided
+  /// details objects.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onDragSelectionUpdate],
+  ///  which triggers this callback./lib/src/material/text_field.dart
+  @protected
   void onDragSelectionUpdate(
       DragStartDetails startDetails, DragUpdateDetails updateDetails) {
-    getRenderEditor()!.selectPositionAt(
+    getRenderEditor()!.extendSelection(updateDetails.globalPosition,
-      startDetails.globalPosition,
+        cause: SelectionChangedCause.drag);
-      updateDetails.globalPosition,
-      SelectionChangedCause.drag,
-    );
   }
 
-  void onDragSelectionEnd(DragEndDetails details) {}
+  /// Handler for [EditorTextSelectionGestureDetector.onDragSelectionEnd].
+  ///
+  /// By default, it services as place holder to enable subclass override.
+  ///
+  /// See also:
+  ///
+  ///  * [EditorTextSelectionGestureDetector.onDragSelectionEnd],
+  ///  which triggers this callback.
+  @protected
+  void onDragSelectionEnd(DragEndDetails details) {
+    getRenderEditor()!.handleDragEnd(details);
+  }
 
-  Widget build(HitTestBehavior behavior, Widget child) {
+  /// Returns a [EditorTextSelectionGestureDetector] configured with
+  /// the handlers provided by this builder.
+  ///
+  /// The [child] or its subtree should contain [EditableText].
+  Widget build(
+      {required HitTestBehavior behavior, required Widget child, Key? key}) {
     return EditorTextSelectionGestureDetector(
+      key: key,
       onTapDown: onTapDown,
       onForcePressStart:
           delegate.getForcePressEnabled() ? onForcePressStart : null,

lib/src/widgets/float_cursor.dart

@@ -0,0 +1,31 @@
+// The corner radius of the floating cursor in pixels.
+import 'dart:ui';
+
+import '../../widgets/cursor.dart';
+
+const Radius _kFloatingCaretRadius = Radius.circular(1);
+
+/// Floating painter responsible for painting the floating cursor when
+/// floating mode is activated
+class FloatingCursorPainter {
+  FloatingCursorPainter({
+    required this.floatingCursorRect,
+    required this.style,
+  });
+
+  CursorStyle style;
+
+  Rect? floatingCursorRect;
+
+  final Paint floatingCursorPaint = Paint();
+
+  void paint(Canvas canvas) {
+    final floatingCursorRect = this.floatingCursorRect;
+    final floatingCursorColor = style.color.withOpacity(0.75);
+    if (floatingCursorRect == null) return;
+    canvas.drawRRect(
+      RRect.fromRectAndRadius(floatingCursorRect, _kFloatingCaretRadius),
+      floatingCursorPaint..color = floatingCursorColor,
+    );
+  }
+}

lib/src/widgets/image.dart

@@ -1,6 +1,4 @@
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:photo_view/photo_view.dart';
 
 class ImageTapWrapper extends StatelessWidget {
@@ -17,13 +15,52 @@ class ImageTapWrapper extends StatelessWidget {
         constraints: BoxConstraints.expand(
           height: MediaQuery.of(context).size.height,
         ),
-        child: GestureDetector(
+        child: Stack(
-          onTapDown: (_) {
+          children: [
-            Navigator.pop(context);
+            PhotoView(
-          },
+              imageProvider: imageProvider,
-          child: PhotoView(
+              loadingBuilder: (context, event) {
-            imageProvider: imageProvider,
+                return Container(
-          ),
+                  color: Colors.black,
+                  child: const Center(
+                    child: CircularProgressIndicator(),
+                  ),
+                );
+              },
+            ),
+            Positioned(
+              right: 10,
+              top: MediaQuery.of(context).padding.top + 10.0,
+              child: InkWell(
+                onTap: () {
+                  Navigator.pop(context);
+                },
+                child: Stack(
+                  children: [
+                    Opacity(
+                      opacity: 0.2,
+                      child: Container(
+                        height: 30,
+                        width: 30,
+                        decoration: const BoxDecoration(
+                          shape: BoxShape.circle,
+                          color: Colors.black87,
+                        ),
+                      ),
+                    ),
+                    Positioned(
+                      top: 0,
+                      bottom: 0,
+                      left: 0,
+                      right: 0,
+                      child:
+                          Icon(Icons.close, color: Colors.grey[400], size: 28),
+                    )
+                  ],
+                ),
+              ),
+            ),
+          ],
         ),
       ),
     );

lib/src/widgets/keyboard_listener.dart

@@ -1,106 +1,89 @@
-import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
-
-enum InputShortcut { CUT, COPY, PASTE, SELECT_ALL }
-
-typedef CursorMoveCallback = void Function(
-    LogicalKeyboardKey key, bool wordModifier, bool lineModifier, bool shift);
-typedef InputShortcutCallback = void Function(InputShortcut? shortcut);
-typedef OnDeleteCallback = void Function(bool forward);
-
-class KeyboardListener {
-  KeyboardListener(this.onCursorMove, this.onShortcut, this.onDelete);
-
-  final CursorMoveCallback onCursorMove;
-  final InputShortcutCallback onShortcut;
-  final OnDeleteCallback onDelete;
-
-  static final Set<LogicalKeyboardKey> _moveKeys = <LogicalKeyboardKey>{
-    LogicalKeyboardKey.arrowRight,
-    LogicalKeyboardKey.arrowLeft,
-    LogicalKeyboardKey.arrowUp,
-    LogicalKeyboardKey.arrowDown,
-  };
-
-  static final Set<LogicalKeyboardKey> _shortcutKeys = <LogicalKeyboardKey>{
-    LogicalKeyboardKey.keyA,
-    LogicalKeyboardKey.keyC,
-    LogicalKeyboardKey.keyV,
-    LogicalKeyboardKey.keyX,
-    LogicalKeyboardKey.delete,
-    LogicalKeyboardKey.backspace,
-  };
-
-  static final Set<LogicalKeyboardKey> _nonModifierKeys = <LogicalKeyboardKey>{
-    ..._shortcutKeys,
-    ..._moveKeys,
-  };
-
-  static final Set<LogicalKeyboardKey> _modifierKeys = <LogicalKeyboardKey>{
-    LogicalKeyboardKey.shift,
-    LogicalKeyboardKey.control,
-    LogicalKeyboardKey.alt,
-  };
-
-  static final Set<LogicalKeyboardKey> _macOsModifierKeys =
-      <LogicalKeyboardKey>{
-    LogicalKeyboardKey.shift,
-    LogicalKeyboardKey.meta,
-    LogicalKeyboardKey.alt,
-  };
-
-  static final Set<LogicalKeyboardKey> _interestingKeys = <LogicalKeyboardKey>{
-    ..._modifierKeys,
-    ..._macOsModifierKeys,
-    ..._nonModifierKeys,
-  };
-
-  static final Map<LogicalKeyboardKey, InputShortcut> _keyToShortcut = {
-    LogicalKeyboardKey.keyX: InputShortcut.CUT,
-    LogicalKeyboardKey.keyC: InputShortcut.COPY,
-    LogicalKeyboardKey.keyV: InputShortcut.PASTE,
-    LogicalKeyboardKey.keyA: InputShortcut.SELECT_ALL,
-  };
-
-  KeyEventResult handleRawKeyEvent(RawKeyEvent event) {
-    if (kIsWeb) {
-      // On web platform, we ignore the key because it's already processed.
-      return KeyEventResult.ignored;
-    }
 
-    if (event is! RawKeyDownEvent) {
+class QuillPressedKeys extends ChangeNotifier {
-      return KeyEventResult.ignored;
+  static QuillPressedKeys of(BuildContext context) {
-    }
+    final widget =
+        context.dependOnInheritedWidgetOfExactType<_QuillPressedKeysAccess>();
+    return widget!.pressedKeys;
+  }
 
-    final keysPressed =
+  bool _metaPressed = false;
-        LogicalKeyboardKey.collapseSynonyms(RawKeyboard.instance.keysPressed);
+  bool _controlPressed = false;
-    final key = event.logicalKey;
-    final isMacOS = event.data is RawKeyEventDataMacOs;
-    if (!_nonModifierKeys.contains(key) ||
-        keysPressed
-                .difference(isMacOS ? _macOsModifierKeys : _modifierKeys)
-                .length >
-            1 ||
-        keysPressed.difference(_interestingKeys).isNotEmpty) {
-      return KeyEventResult.ignored;
-    }
 
-    if (_moveKeys.contains(key)) {
+  /// Whether meta key is currently pressed.
-      onCursorMove(
+  bool get metaPressed => _metaPressed;
-          key,
+
-          isMacOS ? event.isAltPressed : event.isControlPressed,
+  /// Whether control key is currently pressed.
-          isMacOS ? event.isMetaPressed : event.isAltPressed,
+  bool get controlPressed => _controlPressed;
-          event.isShiftPressed);
+
-    } else if (isMacOS
+  void _updatePressedKeys(Set<LogicalKeyboardKey> pressedKeys) {
-        ? event.isMetaPressed
+    final meta = pressedKeys.contains(LogicalKeyboardKey.metaLeft) ||
-        : event.isControlPressed && _shortcutKeys.contains(key)) {
+        pressedKeys.contains(LogicalKeyboardKey.metaRight);
-      onShortcut(_keyToShortcut[key]);
+    final control = pressedKeys.contains(LogicalKeyboardKey.controlLeft) ||
-    } else if (key == LogicalKeyboardKey.delete) {
+        pressedKeys.contains(LogicalKeyboardKey.controlRight);
-      onDelete(true);
+    if (_metaPressed != meta || _controlPressed != control) {
-    } else if (key == LogicalKeyboardKey.backspace) {
+      _metaPressed = meta;
-      onDelete(false);
+      _controlPressed = control;
+      notifyListeners();
     }
-    return KeyEventResult.ignored;
+  }
+}
+
+class QuillKeyboardListener extends StatefulWidget {
+  const QuillKeyboardListener({required this.child, Key? key})
+      : super(key: key);
+
+  final Widget child;
+
+  @override
+  QuillKeyboardListenerState createState() => QuillKeyboardListenerState();
+}
+
+class QuillKeyboardListenerState extends State<QuillKeyboardListener> {
+  final QuillPressedKeys _pressedKeys = QuillPressedKeys();
+
+  bool _keyEvent(KeyEvent event) {
+    _pressedKeys
+        ._updatePressedKeys(HardwareKeyboard.instance.logicalKeysPressed);
+    return false;
+  }
+
+  @override
+  void initState() {
+    super.initState();
+    HardwareKeyboard.instance.addHandler(_keyEvent);
+    _pressedKeys
+        ._updatePressedKeys(HardwareKeyboard.instance.logicalKeysPressed);
+  }
+
+  @override
+  void dispose() {
+    HardwareKeyboard.instance.removeHandler(_keyEvent);
+    _pressedKeys.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return _QuillPressedKeysAccess(
+      pressedKeys: _pressedKeys,
+      child: widget.child,
+    );
+  }
+}
+
+class _QuillPressedKeysAccess extends InheritedWidget {
+  const _QuillPressedKeysAccess({
+    required this.pressedKeys,
+    required Widget child,
+    Key? key,
+  }) : super(key: key, child: child);
+
+  final QuillPressedKeys pressedKeys;
+
+  @override
+  bool updateShouldNotify(covariant _QuillPressedKeysAccess oldWidget) {
+    return oldWidget.pressedKeys != pressedKeys;
   }
 }

lib/src/widgets/link.dart

@@ -0,0 +1,170 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+import '../../models/documents/nodes/node.dart';
+
+/// List of possible actions returned from [LinkActionPickerDelegate].
+enum LinkMenuAction {
+  /// Launch the link
+  launch,
+
+  /// Copy to clipboard
+  copy,
+
+  /// Remove link style attribute
+  remove,
+
+  /// No-op
+  none,
+}
+
+/// Used internally by widget layer.
+typedef LinkActionPicker = Future<LinkMenuAction> Function(Node linkNode);
+
+typedef LinkActionPickerDelegate = Future<LinkMenuAction> Function(
+    BuildContext context, String link);
+
+Future<LinkMenuAction> defaultLinkActionPickerDelegate(
+    BuildContext context, String link) async {
+  switch (defaultTargetPlatform) {
+    case TargetPlatform.iOS:
+      return _showCupertinoLinkMenu(context, link);
+    case TargetPlatform.android:
+      return _showMaterialMenu(context, link);
+    default:
+      assert(
+          false,
+          'defaultShowLinkActionsMenu not supposed to '
+          'be invoked for $defaultTargetPlatform');
+      return LinkMenuAction.none;
+  }
+}
+
+Future<LinkMenuAction> _showCupertinoLinkMenu(
+    BuildContext context, String link) async {
+  final result = await showCupertinoModalPopup<LinkMenuAction>(
+    context: context,
+    builder: (ctx) {
+      return CupertinoActionSheet(
+        title: Text(link),
+        actions: [
+          _CupertinoAction(
+            title: 'Open',
+            icon: Icons.language_sharp,
+            onPressed: () => Navigator.of(context).pop(LinkMenuAction.launch),
+          ),
+          _CupertinoAction(
+            title: 'Copy',
+            icon: Icons.copy_sharp,
+            onPressed: () => Navigator.of(context).pop(LinkMenuAction.copy),
+          ),
+          _CupertinoAction(
+            title: 'Remove',
+            icon: Icons.link_off_sharp,
+            onPressed: () => Navigator.of(context).pop(LinkMenuAction.remove),
+          ),
+        ],
+      );
+    },
+  );
+  return result ?? LinkMenuAction.none;
+}
+
+class _CupertinoAction extends StatelessWidget {
+  const _CupertinoAction({
+    required this.title,
+    required this.icon,
+    required this.onPressed,
+    Key? key,
+  }) : super(key: key);
+
+  final String title;
+  final IconData icon;
+  final VoidCallback onPressed;
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return CupertinoActionSheetAction(
+      onPressed: onPressed,
+      child: Padding(
+        padding: const EdgeInsets.symmetric(horizontal: 8),
+        child: Row(
+          children: [
+            Expanded(
+              child: Text(
+                title,
+                textAlign: TextAlign.start,
+                style: TextStyle(color: theme.colorScheme.onSurface),
+              ),
+            ),
+            Icon(
+              icon,
+              size: theme.iconTheme.size,
+              color: theme.colorScheme.onSurface.withOpacity(0.75),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+Future<LinkMenuAction> _showMaterialMenu(
+    BuildContext context, String link) async {
+  final result = await showModalBottomSheet<LinkMenuAction>(
+    context: context,
+    builder: (ctx) {
+      return Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          _MaterialAction(
+            title: 'Open',
+            icon: Icons.language_sharp,
+            onPressed: () => Navigator.of(context).pop(LinkMenuAction.launch),
+          ),
+          _MaterialAction(
+            title: 'Copy',
+            icon: Icons.copy_sharp,
+            onPressed: () => Navigator.of(context).pop(LinkMenuAction.copy),
+          ),
+          _MaterialAction(
+            title: 'Remove',
+            icon: Icons.link_off_sharp,
+            onPressed: () => Navigator.of(context).pop(LinkMenuAction.remove),
+          ),
+        ],
+      );
+    },
+  );
+
+  return result ?? LinkMenuAction.none;
+}
+
+class _MaterialAction extends StatelessWidget {
+  const _MaterialAction({
+    required this.title,
+    required this.icon,
+    required this.onPressed,
+    Key? key,
+  }) : super(key: key);
+
+  final String title;
+  final IconData icon;
+  final VoidCallback onPressed;
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    return ListTile(
+      leading: Icon(
+        icon,
+        size: theme.iconTheme.size,
+        color: theme.colorScheme.onSurface.withOpacity(0.75),
+      ),
+      title: Text(title),
+      onTap: onPressed,
+    );
+  }
+}

lib/src/widgets/link_dialog.dart

@@ -1,7 +1,12 @@
 import 'package:flutter/material.dart';
 
+import '../models/themes/quill_dialog_theme.dart';
+import '../translations/toolbar.i18n.dart';
+
 class LinkDialog extends StatefulWidget {
-  const LinkDialog({Key? key}) : super(key: key);
+  const LinkDialog({this.dialogTheme, Key? key}) : super(key: key);
+
+  final QuillDialogTheme? dialogTheme;
 
   @override
   LinkDialogState createState() => LinkDialogState();
@@ -13,15 +18,23 @@ class LinkDialogState extends State<LinkDialog> {
   @override
   Widget build(BuildContext context) {
     return AlertDialog(
+      backgroundColor: widget.dialogTheme?.dialogBackgroundColor,
       content: TextField(
-        decoration: const InputDecoration(labelText: 'Paste a link'),
+        style: widget.dialogTheme?.inputTextStyle,
+        decoration: InputDecoration(
+            labelText: 'Paste a link'.i18n,
+            labelStyle: widget.dialogTheme?.labelTextStyle,
+            floatingLabelStyle: widget.dialogTheme?.labelTextStyle),
         autofocus: true,
         onChanged: _linkChanged,
       ),
       actions: [
         TextButton(
           onPressed: _link.isNotEmpty ? _applyLink : null,
-          child: const Text('Ok'),
+          child: Text(
+            'Ok'.i18n,
+            style: widget.dialogTheme?.labelTextStyle,
+          ),
         ),
       ],
     );

lib/src/widgets/proxy.dart

@@ -1,3 +1,5 @@
+import 'dart:ui';
+
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 
@@ -127,17 +129,19 @@ class RenderEmbedProxy extends RenderProxyBox implements RenderContentProxyBox {
 }
 
 class RichTextProxy extends SingleChildRenderObjectWidget {
+  /// Child argument should be an instance of RichText widget.
   const RichTextProxy(
-    RichText child,
+      {required RichText child,
-    this.textStyle,
+      required this.textStyle,
-    this.textAlign,
+      required this.textAlign,
-    this.textDirection,
+      required this.textDirection,
-    this.textScaleFactor,
+      required this.locale,
-    this.locale,
+      required this.strutStyle,
-    this.strutStyle,
+      this.textScaleFactor = 1.0,
-    this.textWidthBasis,
+      this.textWidthBasis = TextWidthBasis.parent,
-    this.textHeightBehavior,
+      this.textHeightBehavior,
-  ) : super(child: child);
+      Key? key})
+      : super(key: key, child: child);
 
   final TextStyle textStyle;
   final TextAlign textAlign;
@@ -291,8 +295,8 @@ class RenderParagraphProxy extends RenderProxyBox
       child!.getWordBoundary(position);
 
   @override
-  List<TextBox> getBoxesForSelection(TextSelection selection) =>
+  List<TextBox> getBoxesForSelection(TextSelection selection) => child!
-      child!.getBoxesForSelection(selection);
+      .getBoxesForSelection(selection, boxHeightStyle: BoxHeightStyle.strut);
 
   @override
   void performLayout() {

lib/src/widgets/quill_single_child_scroll_view.dart

@@ -0,0 +1,354 @@
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
+import 'package:flutter/widgets.dart';
+
+/// Very similar to [SingleChildView] but with a [ViewportBuilder] argument
+/// instead of a [Widget]
+///
+/// Useful when child needs [ViewportOffset] (e.g. [RenderEditor])
+/// see: [SingleChildScrollView]
+class QuillSingleChildScrollView extends StatelessWidget {
+  /// Creates a box in which a single widget can be scrolled.
+  const QuillSingleChildScrollView({
+    required this.controller,
+    required this.viewportBuilder,
+    Key? key,
+    this.physics,
+    this.restorationId,
+  }) : super(key: key);
+
+  /// An object that can be used to control the position to which this scroll
+  /// view is scrolled.
+  ///
+  /// Must be null if [primary] is true.
+  ///
+  /// A [ScrollController] serves several purposes. It can be used to control
+  /// the initial scroll position (see [ScrollController.initialScrollOffset]).
+  /// It can be used to control whether the scroll view should automatically
+  /// save and restore its scroll position in the [PageStorage] (see
+  /// [ScrollController.keepScrollOffset]). It can be used to read the current
+  /// scroll position (see [ScrollController.offset]), or change it (see
+  /// [ScrollController.animateTo]).
+  final ScrollController controller;
+
+  /// How the scroll view should respond to user input.
+  ///
+  /// For example, determines how the scroll view continues to animate after the
+  /// user stops dragging the scroll view.
+  ///
+  /// Defaults to matching platform conventions.
+  final ScrollPhysics? physics;
+
+  /// {@macro flutter.widgets.scrollable.restorationId}
+  final String? restorationId;
+
+  final ViewportBuilder viewportBuilder;
+
+  AxisDirection _getDirection(BuildContext context) {
+    return getAxisDirectionFromAxisReverseAndDirectionality(
+        context, Axis.vertical, false);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final axisDirection = _getDirection(context);
+    final scrollController = controller;
+    final scrollable = Scrollable(
+      axisDirection: axisDirection,
+      controller: scrollController,
+      physics: physics,
+      restorationId: restorationId,
+      viewportBuilder: (context, offset) {
+        return _SingleChildViewport(
+          offset: offset,
+          child: viewportBuilder(context, offset),
+        );
+      },
+    );
+    return scrollable;
+  }
+}
+
+class _SingleChildViewport extends SingleChildRenderObjectWidget {
+  const _SingleChildViewport({
+    required this.offset,
+    Key? key,
+    Widget? child,
+  }) : super(key: key, child: child);
+
+  final ViewportOffset offset;
+
+  @override
+  _RenderSingleChildViewport createRenderObject(BuildContext context) {
+    return _RenderSingleChildViewport(
+      offset: offset,
+    );
+  }
+
+  @override
+  void updateRenderObject(
+      BuildContext context, _RenderSingleChildViewport renderObject) {
+    // Order dependency: The offset setter reads the axis direction.
+    renderObject.offset = offset;
+  }
+}
+
+class _RenderSingleChildViewport extends RenderBox
+    with RenderObjectWithChildMixin<RenderBox>
+    implements RenderAbstractViewport {
+  _RenderSingleChildViewport({
+    required ViewportOffset offset,
+    double cacheExtent = RenderAbstractViewport.defaultCacheExtent,
+    RenderBox? child,
+  })  : _offset = offset,
+        _cacheExtent = cacheExtent {
+    this.child = child;
+  }
+
+  ViewportOffset get offset => _offset;
+  ViewportOffset _offset;
+
+  set offset(ViewportOffset value) {
+    if (value == _offset) return;
+    if (attached) _offset.removeListener(_hasScrolled);
+    _offset = value;
+    if (attached) _offset.addListener(_hasScrolled);
+    markNeedsLayout();
+  }
+
+  /// {@macro flutter.rendering.RenderViewportBase.cacheExtent}
+  double get cacheExtent => _cacheExtent;
+  double _cacheExtent;
+
+  set cacheExtent(double value) {
+    if (value == _cacheExtent) return;
+    _cacheExtent = value;
+    markNeedsLayout();
+  }
+
+  void _hasScrolled() {
+    markNeedsPaint();
+    markNeedsSemanticsUpdate();
+  }
+
+  @override
+  void setupParentData(RenderObject child) {
+    // We don't actually use the offset argument in BoxParentData, so let's
+    // avoid allocating it at all.
+    if (child.parentData is! ParentData) child.parentData = ParentData();
+  }
+
+  @override
+  bool get isRepaintBoundary => true;
+
+  double get _viewportExtent {
+    assert(hasSize);
+    return size.height;
+  }
+
+  double get _minScrollExtent {
+    assert(hasSize);
+    return 0;
+  }
+
+  double get _maxScrollExtent {
+    assert(hasSize);
+    if (child == null) return 0;
+    return math.max(0, child!.size.height - size.height);
+  }
+
+  BoxConstraints _getInnerConstraints(BoxConstraints constraints) {
+    return constraints.widthConstraints();
+  }
+
+  @override
+  double computeMinIntrinsicWidth(double height) {
+    if (child != null) return child!.getMinIntrinsicWidth(height);
+    return 0;
+  }
+
+  @override
+  double computeMaxIntrinsicWidth(double height) {
+    if (child != null) return child!.getMaxIntrinsicWidth(height);
+    return 0;
+  }
+
+  @override
+  double computeMinIntrinsicHeight(double width) {
+    if (child != null) return child!.getMinIntrinsicHeight(width);
+    return 0;
+  }
+
+  @override
+  double computeMaxIntrinsicHeight(double width) {
+    if (child != null) return child!.getMaxIntrinsicHeight(width);
+    return 0;
+  }
+
+  // We don't override computeDistanceToActualBaseline(), because we
+  // want the default behavior (returning null). Otherwise, as you
+  // scroll, it would shift in its parent if the parent was baseline-aligned,
+  // which makes no sense.
+
+  @override
+  Size computeDryLayout(BoxConstraints constraints) {
+    if (child == null) {
+      return constraints.smallest;
+    }
+    final childSize = child!.getDryLayout(_getInnerConstraints(constraints));
+    return constraints.constrain(childSize);
+  }
+
+  @override
+  void performLayout() {
+    final constraints = this.constraints;
+    if (child == null) {
+      size = constraints.smallest;
+    } else {
+      child!.layout(_getInnerConstraints(constraints), parentUsesSize: true);
+      size = constraints.constrain(child!.size);
+    }
+
+    offset
+      ..applyViewportDimension(_viewportExtent)
+      ..applyContentDimensions(_minScrollExtent, _maxScrollExtent);
+  }
+
+  Offset get _paintOffset => _paintOffsetForPosition(offset.pixels);
+
+  Offset _paintOffsetForPosition(double position) {
+    return Offset(0, -position);
+  }
+
+  bool _shouldClipAtPaintOffset(Offset paintOffset) {
+    assert(child != null);
+    return paintOffset.dx < 0 ||
+        paintOffset.dy < 0 ||
+        paintOffset.dx + child!.size.width > size.width ||
+        paintOffset.dy + child!.size.height > size.height;
+  }
+
+  @override
+  void paint(PaintingContext context, Offset offset) {
+    if (child != null) {
+      final paintOffset = _paintOffset;
+
+      void paintContents(PaintingContext context, Offset offset) {
+        context.paintChild(child!, offset + paintOffset);
+      }
+
+      if (_shouldClipAtPaintOffset(paintOffset)) {
+        _clipRectLayer.layer = context.pushClipRect(
+          needsCompositing,
+          offset,
+          Offset.zero & size,
+          paintContents,
+          oldLayer: _clipRectLayer.layer,
+        );
+      } else {
+        _clipRectLayer.layer = null;
+        paintContents(context, offset);
+      }
+    }
+  }
+
+  final _clipRectLayer = LayerHandle<ClipRectLayer>();
+
+  @override
+  void applyPaintTransform(RenderBox child, Matrix4 transform) {
+    final paintOffset = _paintOffset;
+    transform.translate(paintOffset.dx, paintOffset.dy);
+  }
+
+  @override
+  Rect? describeApproximatePaintClip(RenderObject? child) {
+    if (child != null && _shouldClipAtPaintOffset(_paintOffset)) {
+      return Offset.zero & size;
+    }
+    return null;
+  }
+
+  @override
+  bool hitTestChildren(BoxHitTestResult result, {required Offset position}) {
+    if (child != null) {
+      return result.addWithPaintOffset(
+        offset: _paintOffset,
+        position: position,
+        hitTest: (result, transformed) {
+          assert(transformed == position + -_paintOffset);
+          return child!.hitTest(result, position: transformed);
+        },
+      );
+    }
+    return false;
+  }
+
+  @override
+  RevealedOffset getOffsetToReveal(RenderObject target, double alignment,
+      {Rect? rect}) {
+    rect ??= target.paintBounds;
+    if (target is! RenderBox) {
+      return RevealedOffset(offset: offset.pixels, rect: rect);
+    }
+
+    final targetBox = target;
+    final transform = targetBox.getTransformTo(child);
+    final bounds = MatrixUtils.transformRect(transform, rect);
+
+    final double leadingScrollOffset;
+    final double targetMainAxisExtent;
+    final double mainAxisExtent;
+
+    mainAxisExtent = size.height;
+    leadingScrollOffset = bounds.top;
+    targetMainAxisExtent = bounds.height;
+
+    final targetOffset = leadingScrollOffset -
+        (mainAxisExtent - targetMainAxisExtent) * alignment;
+    final targetRect = bounds.shift(_paintOffsetForPosition(targetOffset));
+    return RevealedOffset(offset: targetOffset, rect: targetRect);
+  }
+
+  @override
+  void showOnScreen({
+    RenderObject? descendant,
+    Rect? rect,
+    Duration duration = Duration.zero,
+    Curve curve = Curves.ease,
+  }) {
+    if (!offset.allowImplicitScrolling) {
+      return super.showOnScreen(
+        descendant: descendant,
+        rect: rect,
+        duration: duration,
+        curve: curve,
+      );
+    }
+
+    final newRect = RenderViewportBase.showInViewport(
+      descendant: descendant,
+      viewport: this,
+      offset: offset,
+      rect: rect,
+      duration: duration,
+      curve: curve,
+    );
+    super.showOnScreen(
+      rect: newRect,
+      duration: duration,
+      curve: curve,
+    );
+  }
+
+  @override
+  Rect describeSemanticsClip(RenderObject child) {
+    return Rect.fromLTRB(
+      semanticBounds.left,
+      semanticBounds.top - cacheExtent,
+      semanticBounds.right,
+      semanticBounds.bottom + cacheExtent,
+    );
+  }
+}

lib/src/widgets/raw_editor.dart

@@ -1,9 +1,9 @@
 import 'dart:async';
 import 'dart:convert';
+import 'dart:math' as math;
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
-import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:flutter/scheduler.dart';
@@ -11,6 +11,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_keyboard_visibility/flutter_keyboard_visibility.dart';
 import 'package:tuple/tuple.dart';
 
+import '../../models/documents/nodes/node.dart';
 import '../models/documents/attribute.dart';
 import '../models/documents/document.dart';
 import '../models/documents/nodes/block.dart';
@@ -21,8 +22,9 @@ import 'default_styles.dart';
 import 'delegate.dart';
 import 'editor.dart';
 import 'keyboard_listener.dart';
+import 'link.dart';
 import 'proxy.dart';
-import 'raw_editor/raw_editor_state_keyboard_mixin.dart';
+import 'quill_single_child_scroll_view.dart';
 import 'raw_editor/raw_editor_state_selection_delegate_mixin.dart';
 import 'raw_editor/raw_editor_state_text_input_client_mixin.dart';
 import 'text_block.dart';
@@ -31,66 +33,191 @@ import 'text_selection.dart';
 
 class RawEditor extends StatefulWidget {
   const RawEditor(
-    Key key,
+      {required this.controller,
-    this.controller,
+      required this.focusNode,
-    this.focusNode,
+      required this.scrollController,
-    this.scrollController,
+      required this.scrollBottomInset,
-    this.scrollable,
+      required this.cursorStyle,
-    this.scrollBottomInset,
+      required this.selectionColor,
-    this.padding,
+      required this.selectionCtrls,
-    this.readOnly,
+      Key? key,
-    this.placeholder,
+      this.scrollable = true,
-    this.onLaunchUrl,
+      this.padding = EdgeInsets.zero,
-    this.toolbarOptions,
+      this.readOnly = false,
-    this.showSelectionHandles,
+      this.placeholder,
-    bool? showCursor,
+      this.onLaunchUrl,
-    this.cursorStyle,
+      this.toolbarOptions = const ToolbarOptions(
-    this.textCapitalization,
+        copy: true,
-    this.maxHeight,
+        cut: true,
-    this.minHeight,
+        paste: true,
-    this.customStyles,
+        selectAll: true,
-    this.expands,
+      ),
-    this.autoFocus,
+      this.showSelectionHandles = false,
-    this.selectionColor,
+      bool? showCursor,
-    this.selectionCtrls,
+      this.textCapitalization = TextCapitalization.none,
-    this.keyboardAppearance,
+      this.maxHeight,
-    this.enableInteractiveSelection,
+      this.minHeight,
-    this.scrollPhysics,
+      this.maxContentWidth,
-    this.embedBuilder,
+      this.customStyles,
-    this.customStyleBuilder,
+      this.expands = false,
-  )   : assert(maxHeight == null || maxHeight > 0, 'maxHeight cannot be null'),
+      this.autoFocus = false,
+      this.keyboardAppearance = Brightness.light,
+      this.enableInteractiveSelection = true,
+      this.scrollPhysics,
+      this.embedBuilder = defaultEmbedBuilder,
+      this.linkActionPickerDelegate = defaultLinkActionPickerDelegate,
+      this.customStyleBuilder,
+      this.floatingCursorDisabled = false})
+      : assert(maxHeight == null || maxHeight > 0, 'maxHeight cannot be null'),
         assert(minHeight == null || minHeight >= 0, 'minHeight cannot be null'),
         assert(maxHeight == null || minHeight == null || maxHeight >= minHeight,
             'maxHeight cannot be null'),
         showCursor = showCursor ?? true,
         super(key: key);
 
+  /// Controls the document being edited.
   final QuillController controller;
+
+  /// Controls whether this editor has keyboard focus.
   final FocusNode focusNode;
   final ScrollController scrollController;
   final bool scrollable;
   final double scrollBottomInset;
+
+  /// Additional space around the editor contents.
   final EdgeInsetsGeometry padding;
+
+  /// Whether the text can be changed.
+  ///
+  /// When this is set to true, the text cannot be modified
+  /// by any shortcut or keyboard operation. The text is still selectable.
+  ///
+  /// Defaults to false. Must not be null.
   final bool readOnly;
+
   final String? placeholder;
+
+  /// Callback which is triggered when the user wants to open a URL from
+  /// a link in the document.
   final ValueChanged<String>? onLaunchUrl;
+
+  /// Configuration of toolbar options.
+  ///
+  /// By default, all options are enabled. If [readOnly] is true,
+  /// paste and cut will be disabled regardless.
   final ToolbarOptions toolbarOptions;
+
+  /// Whether to show selection handles.
+  ///
+  /// When a selection is active, there will be two handles at each side of
+  /// boundary, or one handle if the selection is collapsed. The handles can be
+  /// dragged to adjust the selection.
+  ///
+  /// See also:
+  ///
+  ///  * [showCursor], which controls the visibility of the cursor.
   final bool showSelectionHandles;
+
+  /// Whether to show cursor.
+  ///
+  /// The cursor refers to the blinking caret when the editor is focused.
+  ///
+  /// See also:
+  ///
+  ///  * [cursorStyle], which controls the cursor visual representation.
+  ///  * [showSelectionHandles], which controls the visibility of the selection
+  ///    handles.
   final bool showCursor;
+
+  /// The style to be used for the editing cursor.
   final CursorStyle cursorStyle;
+
+  /// Configures how the platform keyboard will select an uppercase or
+  /// lowercase keyboard.
+  ///
+  /// Only supports text keyboards, other keyboard types will ignore this
+  /// configuration. Capitalization is locale-aware.
+  ///
+  /// Defaults to [TextCapitalization.none]. Must not be null.
+  ///
+  /// See also:
+  ///
+  ///  * [TextCapitalization], for a description of each capitalization behavior
   final TextCapitalization textCapitalization;
+
+  /// The maximum height this editor can have.
+  ///
+  /// If this is null then there is no limit to the editor's height and it will
+  /// expand to fill its parent.
   final double? maxHeight;
+
+  /// The minimum height this editor can have.
   final double? minHeight;
+
+  /// The maximum width to be occupied by the content of this editor.
+  ///
+  /// If this is not null and and this editor's width is larger than this value
+  /// then the contents will be constrained to the provided maximum width and
+  /// horizontally centered. This is mostly useful on devices with wide screens.
+  final double? maxContentWidth;
+
   final DefaultStyles? customStyles;
+
+  /// Whether this widget's height will be sized to fill its parent.
+  ///
+  /// If set to true and wrapped in a parent widget like [Expanded] or
+  ///
+  /// Defaults to false.
   final bool expands;
+
+  /// Whether this editor should focus itself if nothing else is already
+  /// focused.
+  ///
+  /// If true, the keyboard will open as soon as this text field obtains focus.
+  /// Otherwise, the keyboard is only shown after the user taps the text field.
+  ///
+  /// Defaults to false. Cannot be null.
   final bool autoFocus;
+
+  /// The color to use when painting the selection.
   final Color selectionColor;
+
+  /// Delegate for building the text selection handles and toolbar.
+  ///
+  /// The [RawEditor] widget used on its own will not trigger the display
+  /// of the selection toolbar by itself. The toolbar is shown by calling
+  /// [RawEditorState.showToolbar] in response to an appropriate user event.
   final TextSelectionControls selectionCtrls;
+
+  /// The appearance of the keyboard.
+  ///
+  /// This setting is only honored on iOS devices.
+  ///
+  /// Defaults to [Brightness.light].
   final Brightness keyboardAppearance;
+
+  /// If true, then long-pressing this TextField will select text and show the
+  /// cut/copy/paste menu, and tapping will move the text caret.
+  ///
+  /// True by default.
+  ///
+  /// If false, most of the accessibility support for selecting text, copy
+  /// and paste, and moving the caret will be disabled.
   final bool enableInteractiveSelection;
+
+  /// The [ScrollPhysics] to use when vertically scrolling the input.
+  ///
+  /// If not specified, it will behave according to the current platform.
+  ///
+  /// See [Scrollable.physics].
   final ScrollPhysics? scrollPhysics;
+
+  /// Builder function for embeddable objects.
   final EmbedBuilder embedBuilder;
+  final LinkActionPickerDelegate linkActionPickerDelegate;
   final CustomStyleBuilder? customStyleBuilder;
+  final bool floatingCursorDisabled;
+
   @override
   State<StatefulWidget> createState() => RawEditorState();
 }
@@ -100,13 +227,11 @@ class RawEditorState extends EditorState
         AutomaticKeepAliveClientMixin<RawEditor>,
         WidgetsBindingObserver,
         TickerProviderStateMixin<RawEditor>,
-        RawEditorStateKeyboardMixin,
+        TextEditingActionTarget,
         RawEditorStateTextInputClientMixin,
         RawEditorStateSelectionDelegateMixin {
   final GlobalKey _editorKey = GlobalKey();
 
-  // Keyboard
-  late KeyboardListener _keyboardListener;
   KeyboardVisibilityController? _keyboardVisibilityController;
   StreamSubscription<bool>? _keyboardVisibilitySubscription;
   bool _keyboardVisible = false;
@@ -120,6 +245,7 @@ class RawEditorState extends EditorState
   ScrollController get scrollController => _scrollController;
   late ScrollController _scrollController;
 
+  // Cursors
   late CursorCont _cursorCont;
 
   // Focus
@@ -127,6 +253,7 @@ class RawEditorState extends EditorState
   FocusAttachment? _focusAttachment;
   bool get _hasFocus => widget.focusNode.hasFocus;
 
+  // Theme
   DefaultStyles? _styles;
 
   final ClipboardStatusNotifier _clipboardStatus = ClipboardStatusNotifier();
@@ -156,12 +283,15 @@ class RawEditorState extends EditorState
           document: _doc,
           selection: widget.controller.selection,
           hasFocus: _hasFocus,
+          cursorController: _cursorCont,
           textDirection: _textDirection,
           startHandleLayerLink: _startHandleLayerLink,
           endHandleLayerLink: _endHandleLayerLink,
           onSelectionChanged: _handleSelectionChanged,
           scrollBottomInset: widget.scrollBottomInset,
           padding: widget.padding,
+          maxContentWidth: widget.maxContentWidth,
+          floatingCursorDisabled: widget.floatingCursorDisabled,
           children: _buildChildren(_doc, context),
         ),
       ),
@@ -173,10 +303,29 @@ class RawEditorState extends EditorState
       child = BaselineProxy(
         textStyle: _styles!.paragraph!.style,
         padding: baselinePadding,
-        child: SingleChildScrollView(
+        child: QuillSingleChildScrollView(
           controller: _scrollController,
           physics: widget.scrollPhysics,
-          child: child,
+          viewportBuilder: (_, offset) => CompositedTransformTarget(
+            link: _toolbarLayerLink,
+            child: _Editor(
+              key: _editorKey,
+              offset: offset,
+              document: widget.controller.document,
+              selection: widget.controller.selection,
+              hasFocus: _hasFocus,
+              textDirection: _textDirection,
+              startHandleLayerLink: _startHandleLayerLink,
+              endHandleLayerLink: _endHandleLayerLink,
+              onSelectionChanged: _handleSelectionChanged,
+              scrollBottomInset: widget.scrollBottomInset,
+              padding: widget.padding,
+              maxContentWidth: widget.maxContentWidth,
+              cursorController: _cursorCont,
+              floatingCursorDisabled: widget.floatingCursorDisabled,
+              children: _buildChildren(_doc, context),
+            ),
+          ),
         ),
       );
     }
@@ -191,9 +340,11 @@ class RawEditorState extends EditorState
       data: _styles!,
       child: MouseRegion(
         cursor: SystemMouseCursors.text,
-        child: Container(
+        child: QuillKeyboardListener(
-          constraints: constraints,
+          child: Container(
-          child: child,
+            constraints: constraints,
+            child: child,
+          ),
         ),
       ),
     );
@@ -201,24 +352,34 @@ class RawEditorState extends EditorState
 
   void _handleSelectionChanged(
       TextSelection selection, SelectionChangedCause cause) {
+    final oldSelection = widget.controller.selection;
     widget.controller.updateSelection(selection, ChangeSource.LOCAL);
 
     _selectionOverlay?.handlesVisible = _shouldShowSelectionHandles();
 
     if (!_keyboardVisible) {
+      // This will show the keyboard for all selection changes on the
+      // editor, not just changes triggered by user gestures.
       requestKeyboard();
     }
+
+    if (cause == SelectionChangedCause.drag) {
+      // When user updates the selection while dragging make sure to
+      // bring the updated position (base or extent) into view.
+      if (oldSelection.baseOffset != selection.baseOffset) {
+        bringIntoView(selection.base);
+      } else if (oldSelection.extentOffset != selection.extentOffset) {
+        bringIntoView(selection.extent);
+      }
+    }
   }
 
   /// Updates the checkbox positioned at [offset] in document
   /// by changing its attribute according to [value].
   void _handleCheckboxTap(int offset, bool value) {
     if (!widget.readOnly) {
-      if (value) {
+      widget.controller.formatText(
-        widget.controller.formatText(offset, 0, Attribute.checked);
+          offset, 0, value ? Attribute.checked : Attribute.unchecked);
-      } else {
-        widget.controller.formatText(offset, 0, Attribute.unchecked);
-      }
     }
   }
 
@@ -233,6 +394,7 @@ class RawEditorState extends EditorState
         final attrs = node.style.attributes;
         final editableTextBlock = EditableTextBlock(
             block: node,
+            controller: widget.controller,
             textDirection: _textDirection,
             scrollBottomInset: widget.scrollBottomInset,
             verticalSpacing: _getVerticalSpacingForBlock(node, _styles),
@@ -245,6 +407,8 @@ class RawEditorState extends EditorState
                 ? const EdgeInsets.all(16)
                 : null,
             embedBuilder: widget.embedBuilder,
+            linkActionPicker: _linkActionPicker,
+            onLaunchUrl: widget.onLaunchUrl,
             cursorCont: _cursorCont,
             indentLevelCounts: indentLevelCounts,
             onCheckboxTap: _handleCheckboxTap,
@@ -267,6 +431,9 @@ class RawEditorState extends EditorState
       customStyleBuilder: widget.customStyleBuilder,
       styles: _styles!,
       readOnly: widget.readOnly,
+      controller: widget.controller,
+      linkActionPicker: _linkActionPicker,
+      onLaunchUrl: widget.onLaunchUrl,
     );
     final editableTextLine = EditableTextLine(
         node,
@@ -313,8 +480,12 @@ class RawEditorState extends EditorState
       return defaultStyles!.code!.verticalSpacing;
     } else if (attrs.containsKey(Attribute.indent.key)) {
       return defaultStyles!.indent!.verticalSpacing;
+    } else if (attrs.containsKey(Attribute.list.key)) {
+      return defaultStyles!.lists!.verticalSpacing;
+    } else if (attrs.containsKey(Attribute.align.key)) {
+      return defaultStyles!.align!.verticalSpacing;
     }
-    return defaultStyles!.lists!.verticalSpacing;
+    return const Tuple2(0, 0);
   }
 
   @override
@@ -336,11 +507,9 @@ class RawEditorState extends EditorState
       tickerProvider: this,
     );
 
-    _keyboardListener = KeyboardListener(
+    // Floating cursor
-      handleCursorMovement,
+    _floatingCursorResetController = AnimationController(vsync: this);
-      handleShortcut,
+    _floatingCursorResetController.addListener(onFloatingCursorResetTick);
-      handleDelete,
-    );
 
     if (defaultTargetPlatform == TargetPlatform.windows ||
         defaultTargetPlatform == TargetPlatform.macOS ||
@@ -354,13 +523,12 @@ class RawEditorState extends EditorState
           _keyboardVisibilityController?.onChange.listen((visible) {
         _keyboardVisible = visible;
         if (visible) {
-          _onChangeTextEditingValue();
+          _onChangeTextEditingValue(!_hasFocus);
         }
       });
     }
 
-    _focusAttachment = widget.focusNode.attach(context,
+    _focusAttachment = widget.focusNode.attach(context);
-        onKey: (node, event) => _keyboardListener.handleRawKeyEvent(event));
     widget.focusNode.addListener(_handleFocusChanged);
   }
 
@@ -405,8 +573,7 @@ class RawEditorState extends EditorState
     if (widget.focusNode != oldWidget.focusNode) {
       oldWidget.focusNode.removeListener(_handleFocusChanged);
       _focusAttachment?.detach();
-      _focusAttachment = widget.focusNode.attach(context,
+      _focusAttachment = widget.focusNode.attach(context);
-          onKey: (node, event) => _keyboardListener.handleRawKeyEvent(event));
       widget.focusNode.addListener(_handleFocusChanged);
       updateKeepAlive();
     }
@@ -448,7 +615,7 @@ class RawEditorState extends EditorState
   }
 
   void _updateSelectionOverlayForScroll() {
-    _selectionOverlay?.markNeedsBuild();
+    _selectionOverlay?.updateForScroll();
   }
 
   void _didChangeTextEditingValue([bool ignoreFocus = false]) {
@@ -482,11 +649,19 @@ class RawEditorState extends EditorState
     _cursorCont.startOrStopCursorTimerIfNeeded(
         _hasFocus, widget.controller.selection);
     if (hasConnection) {
+      // To keep the cursor from blinking while typing, we want to restart the
+      // cursor timer every time a new character is typed.
       _cursorCont
         ..stopCursorTimer(resetCharTicks: false)
         ..startCursorTimer();
     }
 
+    // Refresh selection overlay after the build step had a chance to
+    // update and register all children of RenderEditor. Otherwise this will
+    // fail in situations where a new line of text is entered, which adds
+    // a new RenderEditableBox child. If we try to update selection overlay
+    // immediately it'll not be able to find the new child since it hasn't been
+    // built yet.
     SchedulerBinding.instance!.addPostFrameCallback((_) {
       if (!mounted) {
         return;
@@ -503,7 +678,7 @@ class RawEditorState extends EditorState
 
   void _updateOrDisposeSelectionOverlayIfNeeded() {
     if (_selectionOverlay != null) {
-      if (_hasFocus) {
+      if (_hasFocus && !textEditingValue.selection.isCollapsed) {
         _selectionOverlay!.update(textEditingValue);
       } else {
         _selectionOverlay!.dispose();
@@ -511,22 +686,18 @@ class RawEditorState extends EditorState
       }
     } else if (_hasFocus) {
       _selectionOverlay?.hide();
-      _selectionOverlay = null;
 
       _selectionOverlay = EditorTextSelectionOverlay(
-        textEditingValue,
+        value: textEditingValue,
-        false,
+        context: context,
-        context,
+        debugRequiredFor: widget,
-        widget,
+        toolbarLayerLink: _toolbarLayerLink,
-        _toolbarLayerLink,
+        startHandleLayerLink: _startHandleLayerLink,
-        _startHandleLayerLink,
+        endHandleLayerLink: _endHandleLayerLink,
-        _endHandleLayerLink,
+        renderObject: getRenderEditor(),
-        getRenderEditor(),
+        selectionCtrls: widget.selectionCtrls,
-        widget.selectionCtrls,
+        selectionDelegate: this,
-        this,
+        clipboardStatus: _clipboardStatus,
-        DragStartBehavior.start,
-        null,
-        _clipboardStatus,
       );
       _selectionOverlay!.handlesVisible = _shouldShowSelectionHandles();
       _selectionOverlay!.showHandles();
@@ -555,6 +726,11 @@ class RawEditorState extends EditorState
     });
   }
 
+  Future<LinkMenuAction> _linkActionPicker(Node linkNode) async {
+    final link = linkNode.style.attributes[Attribute.link.key]!.value!;
+    return widget.linkActionPickerDelegate(context, link);
+  }
+
   bool _showCaretOnScreenScheduled = false;
 
   void _showCaretOnScreen() {
@@ -564,7 +740,7 @@ class RawEditorState extends EditorState
 
     _showCaretOnScreenScheduled = true;
     SchedulerBinding.instance!.addPostFrameCallback((_) {
-      if (widget.scrollable) {
+      if (widget.scrollable || _scrollController.hasClients) {
         _showCaretOnScreenScheduled = false;
 
         final renderEditor = getRenderEditor();
@@ -585,7 +761,7 @@ class RawEditorState extends EditorState
 
         if (offset != null) {
           _scrollController.animateTo(
-            offset,
+            math.min(offset, _scrollController.position.maxScrollExtent),
             duration: const Duration(milliseconds: 100),
             curve: Curves.fastOutSlowIn,
           );
@@ -599,68 +775,35 @@ class RawEditorState extends EditorState
     return _editorKey.currentContext?.findRenderObject() as RenderEditor?;
   }
 
-  @override
-  TextEditingValue getTextEditingValue() {
-    return widget.controller.plainTextEditingValue;
-  }
-
   @override
   void requestKeyboard() {
     if (_hasFocus) {
       openConnectionIfNeeded();
+      _showCaretOnScreen();
     } else {
       widget.focusNode.requestFocus();
     }
   }
 
   @override
-  void setTextEditingValue(TextEditingValue value) {
+  void setTextEditingValue(
-    if (value.text == textEditingValue.text) {
+      TextEditingValue value, SelectionChangedCause cause) {
-      widget.controller.updateSelection(value.selection, ChangeSource.LOCAL);
+    if (value == textEditingValue) {
-    } else {
+      return;
-      _setEditingValue(value);
-    }
-  }
-
-  // set editing value from clipboard for mobile
-  Future<void> _setEditingValue(TextEditingValue value) async {
-    if (await _isItCut(value)) {
-      widget.controller.replaceText(
-        textEditingValue.selection.start,
-        textEditingValue.text.length - value.text.length,
-        '',
-        value.selection,
-      );
-    } else {
-      final value = textEditingValue;
-      final data = await Clipboard.getData(Clipboard.kTextPlain);
-      if (data != null) {
-        final length =
-            textEditingValue.selection.end - textEditingValue.selection.start;
-        widget.controller.replaceText(
-          value.selection.start,
-          length,
-          data.text,
-          value.selection,
-        );
-        // move cursor to the end of pasted text selection
-        widget.controller.updateSelection(
-            TextSelection.collapsed(
-                offset: value.selection.start + data.text!.length),
-            ChangeSource.LOCAL);
-      }
     }
+    textEditingValue = value;
+    userUpdateTextEditingValue(value, cause);
   }
 
-  Future<bool> _isItCut(TextEditingValue value) async {
+  @override
-    final data = await Clipboard.getData(Clipboard.kTextPlain);
+  void debugAssertLayoutUpToDate() {
-    if (data == null) {
+    getRenderEditor()!.debugAssertLayoutUpToDate();
-      return false;
-    }
-    return textEditingValue.text.length - value.text.length ==
-        data.text!.length;
   }
 
+  /// Shows the selection toolbar at the location of the current cursor.
+  ///
+  /// Returns `false` if a toolbar couldn't be shown, such as when the toolbar
+  /// is already shown, or when no text selection currently exists.
   @override
   bool showToolbar() {
     // Web is using native dom elements to enable clipboard functionality of the
@@ -679,8 +822,85 @@ class RawEditorState extends EditorState
     return true;
   }
 
+  @override
+  void copySelection(SelectionChangedCause cause) {
+    // Copied straight from EditableTextState
+    super.copySelection(cause);
+    if (cause == SelectionChangedCause.toolbar) {
+      bringIntoView(textEditingValue.selection.extent);
+      hideToolbar(false);
+
+      switch (defaultTargetPlatform) {
+        case TargetPlatform.iOS:
+          break;
+        case TargetPlatform.macOS:
+        case TargetPlatform.android:
+        case TargetPlatform.fuchsia:
+        case TargetPlatform.linux:
+        case TargetPlatform.windows:
+          // Collapse the selection and hide the toolbar and handles.
+          userUpdateTextEditingValue(
+            TextEditingValue(
+              text: textEditingValue.text,
+              selection: TextSelection.collapsed(
+                  offset: textEditingValue.selection.end),
+            ),
+            SelectionChangedCause.toolbar,
+          );
+          break;
+      }
+    }
+  }
+
+  @override
+  void cutSelection(SelectionChangedCause cause) {
+    // Copied straight from EditableTextState
+    super.cutSelection(cause);
+    if (cause == SelectionChangedCause.toolbar) {
+      bringIntoView(textEditingValue.selection.extent);
+      hideToolbar();
+    }
+  }
+
+  @override
+  Future<void> pasteText(SelectionChangedCause cause) async {
+    // Copied straight from EditableTextState
+    super.pasteText(cause); // ignore: unawaited_futures
+    if (cause == SelectionChangedCause.toolbar) {
+      bringIntoView(textEditingValue.selection.extent);
+      hideToolbar();
+    }
+  }
+
+  @override
+  void selectAll(SelectionChangedCause cause) {
+    // Copied straight from EditableTextState
+    super.selectAll(cause);
+    if (cause == SelectionChangedCause.toolbar) {
+      bringIntoView(textEditingValue.selection.extent);
+    }
+  }
+
   @override
   bool get wantKeepAlive => widget.focusNode.hasFocus;
+
+  @override
+  bool get obscureText => false;
+
+  @override
+  bool get selectionEnabled => widget.enableInteractiveSelection;
+
+  @override
+  bool get readOnly => widget.readOnly;
+
+  @override
+  TextLayoutMetrics get textLayoutMetrics => getRenderEditor()!;
+
+  @override
+  AnimationController get floatingCursorResetController =>
+      _floatingCursorResetController;
+
+  late AnimationController _floatingCursorResetController;
 }
 
 class _Editor extends MultiChildRenderObjectWidget {
@@ -695,9 +915,14 @@ class _Editor extends MultiChildRenderObjectWidget {
     required this.endHandleLayerLink,
     required this.onSelectionChanged,
     required this.scrollBottomInset,
+    required this.cursorController,
+    required this.floatingCursorDisabled,
     this.padding = EdgeInsets.zero,
+    this.maxContentWidth,
+    this.offset,
   }) : super(key: key, children: children);
 
+  final ViewportOffset? offset;
   final Document document;
   final TextDirection textDirection;
   final bool hasFocus;
@@ -707,28 +932,33 @@ class _Editor extends MultiChildRenderObjectWidget {
   final TextSelectionChangedHandler onSelectionChanged;
   final double scrollBottomInset;
   final EdgeInsetsGeometry padding;
+  final double? maxContentWidth;
+  final CursorCont cursorController;
+  final bool floatingCursorDisabled;
 
   @override
   RenderEditor createRenderObject(BuildContext context) {
     return RenderEditor(
-      null,
+        offset: offset,
-      textDirection,
+        document: document,
-      scrollBottomInset,
+        textDirection: textDirection,
-      padding,
+        hasFocus: hasFocus,
-      document,
+        selection: selection,
-      selection,
+        startHandleLayerLink: startHandleLayerLink,
-      hasFocus,
+        endHandleLayerLink: endHandleLayerLink,
-      onSelectionChanged,
+        onSelectionChanged: onSelectionChanged,
-      startHandleLayerLink,
+        cursorController: cursorController,
-      endHandleLayerLink,
+        padding: padding,
-      const EdgeInsets.fromLTRB(4, 4, 4, 5),
+        maxContentWidth: maxContentWidth,
-    );
+        scrollBottomInset: scrollBottomInset,
+        floatingCursorDisabled: floatingCursorDisabled);
   }
 
   @override
   void updateRenderObject(
       BuildContext context, covariant RenderEditor renderObject) {
     renderObject
+      ..offset = offset
       ..document = document
       ..setContainer(document.root)
       ..textDirection = textDirection
@@ -738,6 +968,7 @@ class _Editor extends MultiChildRenderObjectWidget {
       ..setEndHandleLayerLink(endHandleLayerLink)
       ..onSelectionChanged = onSelectionChanged
       ..setScrollBottomInset(scrollBottomInset)
-      ..setPadding(padding);
+      ..setPadding(padding)
+      ..maxContentWidth = maxContentWidth;
   }
 }

lib/src/widgets/raw_editor/raw_editor_state_keyboard_mixin.dart

@@ -1,355 +0,0 @@
-import 'dart:ui';
-
-import 'package:characters/characters.dart';
-import 'package:flutter/services.dart';
-
-import '../../models/documents/document.dart';
-import '../../utils/diff_delta.dart';
-import '../editor.dart';
-import '../keyboard_listener.dart';
-
-mixin RawEditorStateKeyboardMixin on EditorState {
-  // Holds the last cursor location the user selected in the case the user tries
-  // to select vertically past the end or beginning of the field. If they do,
-  // then we need to keep the old cursor location so that we can go back to it
-  // if they change their minds. Only used for moving selection up and down in a
-  // multiline text field when selecting using the keyboard.
-  int _cursorResetLocation = -1;
-
-  // Whether we should reset the location of the cursor in the case the user
-  // tries to select vertically past the end or beginning of the field. If they
-  // do, then we need to keep the old cursor location so that we can go back to
-  // it if they change their minds. Only used for resetting selection up and
-  // down in a multiline text field when selecting using the keyboard.
-  bool _wasSelectingVerticallyWithKeyboard = false;
-
-  void handleCursorMovement(
-    LogicalKeyboardKey key,
-    bool wordModifier,
-    bool lineModifier,
-    bool shift,
-  ) {
-    if (wordModifier && lineModifier) {
-      // If both modifiers are down, nothing happens on any of the platforms.
-      return;
-    }
-    final selection = widget.controller.selection;
-
-    var newSelection = widget.controller.selection;
-
-    final plainText = getTextEditingValue().text;
-
-    final rightKey = key == LogicalKeyboardKey.arrowRight,
-        leftKey = key == LogicalKeyboardKey.arrowLeft,
-        upKey = key == LogicalKeyboardKey.arrowUp,
-        downKey = key == LogicalKeyboardKey.arrowDown;
-
-    if ((rightKey || leftKey) && !(rightKey && leftKey)) {
-      newSelection = _jumpToBeginOrEndOfWord(newSelection, wordModifier,
-          leftKey, rightKey, plainText, lineModifier, shift);
-    }
-
-    if (downKey || upKey) {
-      newSelection = _handleMovingCursorVertically(
-          upKey, downKey, shift, selection, newSelection, plainText);
-    }
-
-    if (!shift) {
-      newSelection =
-          _placeCollapsedSelection(selection, newSelection, leftKey, rightKey);
-    }
-
-    widget.controller.updateSelection(newSelection, ChangeSource.LOCAL);
-  }
-
-  // Handles shortcut functionality including cut, copy, paste and select all
-  // using control/command + (X, C, V, A).
-  // TODO: Add support for formatting shortcuts: Cmd+B (bold), Cmd+I (italic)
-  // set editing value from clipboard for web
-  Future<void> handleShortcut(InputShortcut? shortcut) async {
-    final selection = widget.controller.selection;
-    final plainText = getTextEditingValue().text;
-    if (shortcut == InputShortcut.COPY) {
-      if (!selection.isCollapsed) {
-        await Clipboard.setData(
-            ClipboardData(text: selection.textInside(plainText)));
-      }
-      return;
-    }
-    if (shortcut == InputShortcut.CUT && !widget.readOnly) {
-      if (!selection.isCollapsed) {
-        final data = selection.textInside(plainText);
-        await Clipboard.setData(ClipboardData(text: data));
-
-        widget.controller.replaceText(
-          selection.start,
-          data.length,
-          '',
-          TextSelection.collapsed(offset: selection.start),
-        );
-
-        setTextEditingValue(TextEditingValue(
-          text:
-              selection.textBefore(plainText) + selection.textAfter(plainText),
-          selection: TextSelection.collapsed(offset: selection.start),
-        ));
-      }
-      return;
-    }
-    if (shortcut == InputShortcut.PASTE && !widget.readOnly) {
-      final data = await Clipboard.getData(Clipboard.kTextPlain);
-      if (data != null) {
-        widget.controller.replaceText(
-          selection.start,
-          selection.end - selection.start,
-          data.text,
-          TextSelection.collapsed(offset: selection.start + data.text!.length),
-        );
-      }
-      return;
-    }
-    if (shortcut == InputShortcut.SELECT_ALL &&
-        widget.enableInteractiveSelection) {
-      widget.controller.updateSelection(
-          selection.copyWith(
-            baseOffset: 0,
-            extentOffset: getTextEditingValue().text.length,
-          ),
-          ChangeSource.REMOTE);
-      return;
-    }
-  }
-
-  void handleDelete(bool forward) {
-    final selection = widget.controller.selection;
-    final plainText = getTextEditingValue().text;
-    var cursorPosition = selection.start;
-    var textBefore = selection.textBefore(plainText);
-    var textAfter = selection.textAfter(plainText);
-    if (selection.isCollapsed) {
-      if (!forward && textBefore.isNotEmpty) {
-        final characterBoundary =
-            _previousCharacter(textBefore.length, textBefore, true);
-        textBefore = textBefore.substring(0, characterBoundary);
-        cursorPosition = characterBoundary;
-      }
-      if (forward && textAfter.isNotEmpty && textAfter != '\n') {
-        final deleteCount = _nextCharacter(0, textAfter, true);
-        textAfter = textAfter.substring(deleteCount);
-      }
-    }
-    final newSelection = TextSelection.collapsed(offset: cursorPosition);
-    final newText = textBefore + textAfter;
-    final size = plainText.length - newText.length;
-    widget.controller.replaceText(
-      cursorPosition,
-      size,
-      '',
-      newSelection,
-    );
-  }
-
-  TextSelection _jumpToBeginOrEndOfWord(
-      TextSelection newSelection,
-      bool wordModifier,
-      bool leftKey,
-      bool rightKey,
-      String plainText,
-      bool lineModifier,
-      bool shift) {
-    if (wordModifier) {
-      if (leftKey) {
-        final textSelection = getRenderEditor()!.selectWordAtPosition(
-            TextPosition(
-                offset: _previousCharacter(
-                    newSelection.extentOffset, plainText, false)));
-        return newSelection.copyWith(extentOffset: textSelection.baseOffset);
-      }
-      final textSelection = getRenderEditor()!.selectWordAtPosition(
-          TextPosition(
-              offset:
-                  _nextCharacter(newSelection.extentOffset, plainText, false)));
-      return newSelection.copyWith(extentOffset: textSelection.extentOffset);
-    } else if (lineModifier) {
-      if (leftKey) {
-        final textSelection = getRenderEditor()!.selectLineAtPosition(
-            TextPosition(
-                offset: _previousCharacter(
-                    newSelection.extentOffset, plainText, false)));
-        return newSelection.copyWith(extentOffset: textSelection.baseOffset);
-      }
-      final startPoint = newSelection.extentOffset;
-      if (startPoint < plainText.length) {
-        final textSelection = getRenderEditor()!
-            .selectLineAtPosition(TextPosition(offset: startPoint));
-        return newSelection.copyWith(extentOffset: textSelection.extentOffset);
-      }
-      return newSelection;
-    }
-
-    if (rightKey && newSelection.extentOffset < plainText.length) {
-      final nextExtent =
-          _nextCharacter(newSelection.extentOffset, plainText, true);
-      final distance = nextExtent - newSelection.extentOffset;
-      newSelection = newSelection.copyWith(extentOffset: nextExtent);
-      if (shift) {
-        _cursorResetLocation += distance;
-      }
-      return newSelection;
-    }
-
-    if (leftKey && newSelection.extentOffset > 0) {
-      final previousExtent =
-          _previousCharacter(newSelection.extentOffset, plainText, true);
-      final distance = newSelection.extentOffset - previousExtent;
-      newSelection = newSelection.copyWith(extentOffset: previousExtent);
-      if (shift) {
-        _cursorResetLocation -= distance;
-      }
-      return newSelection;
-    }
-    return newSelection;
-  }
-
-  /// Returns the index into the string of the next character boundary after the
-  /// given index.
-  ///
-  /// The character boundary is determined by the characters package, so
-  /// surrogate pairs and extended grapheme clusters are considered.
-  ///
-  /// The index must be between 0 and string.length, inclusive. If given
-  /// string.length, string.length is returned.
-  ///
-  /// Setting includeWhitespace to false will only return the index of non-space
-  /// characters.
-  int _nextCharacter(int index, String string, bool includeWhitespace) {
-    assert(index >= 0 && index <= string.length);
-    if (index == string.length) {
-      return string.length;
-    }
-
-    var count = 0;
-    final remain = string.characters.skipWhile((currentString) {
-      if (count <= index) {
-        count += currentString.length;
-        return true;
-      }
-      if (includeWhitespace) {
-        return false;
-      }
-      return WHITE_SPACE.contains(currentString.codeUnitAt(0));
-    });
-    return string.length - remain.toString().length;
-  }
-
-  /// Returns the index into the string of the previous character boundary
-  /// before the given index.
-  ///
-  /// The character boundary is determined by the characters package, so
-  /// surrogate pairs and extended grapheme clusters are considered.
-  ///
-  /// The index must be between 0 and string.length, inclusive. If index is 0,
-  /// 0 will be returned.
-  ///
-  /// Setting includeWhitespace to false will only return the index of non-space
-  /// characters.
-  int _previousCharacter(int index, String string, includeWhitespace) {
-    assert(index >= 0 && index <= string.length);
-    if (index == 0) {
-      return 0;
-    }
-
-    var count = 0;
-    int? lastNonWhitespace;
-    for (final currentString in string.characters) {
-      if (!includeWhitespace &&
-          !WHITE_SPACE.contains(
-              currentString.characters.first.toString().codeUnitAt(0))) {
-        lastNonWhitespace = count;
-      }
-      if (count + currentString.length >= index) {
-        return includeWhitespace ? count : lastNonWhitespace ?? 0;
-      }
-      count += currentString.length;
-    }
-    return 0;
-  }
-
-  TextSelection _handleMovingCursorVertically(
-      bool upKey,
-      bool downKey,
-      bool shift,
-      TextSelection selection,
-      TextSelection newSelection,
-      String plainText) {
-    final originPosition = TextPosition(
-        offset: upKey ? selection.baseOffset : selection.extentOffset);
-
-    final child = getRenderEditor()!.childAtPosition(originPosition);
-    final localPosition = TextPosition(
-        offset: originPosition.offset - child.getContainer().documentOffset);
-
-    var position = upKey
-        ? child.getPositionAbove(localPosition)
-        : child.getPositionBelow(localPosition);
-
-    if (position == null) {
-      final sibling = upKey
-          ? getRenderEditor()!.childBefore(child)
-          : getRenderEditor()!.childAfter(child);
-      if (sibling == null) {
-        position = TextPosition(offset: upKey ? 0 : plainText.length - 1);
-      } else {
-        final finalOffset = Offset(
-            child.getOffsetForCaret(localPosition).dx,
-            sibling
-                .getOffsetForCaret(TextPosition(
-                    offset: upKey ? sibling.getContainer().length - 1 : 0))
-                .dy);
-        final siblingPosition = sibling.getPositionForOffset(finalOffset);
-        position = TextPosition(
-            offset:
-                sibling.getContainer().documentOffset + siblingPosition.offset);
-      }
-    } else {
-      position = TextPosition(
-          offset: child.getContainer().documentOffset + position.offset);
-    }
-
-    if (position.offset == newSelection.extentOffset) {
-      if (downKey) {
-        newSelection = newSelection.copyWith(extentOffset: plainText.length);
-      } else if (upKey) {
-        newSelection = newSelection.copyWith(extentOffset: 0);
-      }
-      _wasSelectingVerticallyWithKeyboard = shift;
-      return newSelection;
-    }
-
-    if (_wasSelectingVerticallyWithKeyboard && shift) {
-      newSelection = newSelection.copyWith(extentOffset: _cursorResetLocation);
-      _wasSelectingVerticallyWithKeyboard = false;
-      return newSelection;
-    }
-    newSelection = newSelection.copyWith(extentOffset: position.offset);
-    _cursorResetLocation = newSelection.extentOffset;
-    return newSelection;
-  }
-
-  TextSelection _placeCollapsedSelection(TextSelection selection,
-      TextSelection newSelection, bool leftKey, bool rightKey) {
-    var newOffset = newSelection.extentOffset;
-    if (!selection.isCollapsed) {
-      if (leftKey) {
-        newOffset = newSelection.baseOffset < newSelection.extentOffset
-            ? newSelection.baseOffset
-            : newSelection.extentOffset;
-      } else if (rightKey) {
-        newOffset = newSelection.baseOffset > newSelection.extentOffset
-            ? newSelection.baseOffset
-            : newSelection.extentOffset;
-      }
-    }
-    return TextSelection.fromPosition(TextPosition(offset: newOffset));
-  }
-}

lib/src/widgets/raw_editor/raw_editor_state_selection_delegate_mixin.dart

@@ -1,20 +1,46 @@
-import 'dart:math';
+import 'dart:math' as math;
 
 import 'package:flutter/rendering.dart';
 import 'package:flutter/widgets.dart';
 
+import '../../../utils/diff_delta.dart';
 import '../editor.dart';
 
 mixin RawEditorStateSelectionDelegateMixin on EditorState
     implements TextSelectionDelegate {
   @override
   TextEditingValue get textEditingValue {
-    return getTextEditingValue();
+    return widget.controller.plainTextEditingValue;
   }
 
   @override
   set textEditingValue(TextEditingValue value) {
-    setTextEditingValue(value);
+    final cursorPosition = value.selection.extentOffset;
+    final oldText = widget.controller.document.toPlainText();
+    final newText = value.text;
+    final diff = getDiff(oldText, newText, cursorPosition);
+    final insertedText = _adjustInsertedText(diff.inserted);
+
+    widget.controller.replaceText(
+        diff.start, diff.deleted.length, insertedText, value.selection);
+  }
+
+  String _adjustInsertedText(String text) {
+    // For clip from editor, it may contain image, a.k.a 65532.
+    // For clip from browser, image is directly ignore.
+    // Here we skip image when pasting.
+    if (!text.codeUnits.contains(65532)) {
+      return text;
+    }
+
+    final sb = StringBuffer();
+    for (var i = 0; i < text.length; i++) {
+      if (text.codeUnitAt(i) == 65532) {
+        continue;
+      }
+      sb.write(text[i]);
+    }
+    return sb.toString();
   }
 
   @override
@@ -50,8 +76,8 @@ mixin RawEditorStateSelectionDelegateMixin on EditorState
     final expandedRect = Rect.fromCenter(
       center: rect.center,
       width: rect.width,
-      height:
+      height: math.max(
-          max(rect.height, getRenderEditor()!.preferredLineHeight(position)),
+          rect.height, getRenderEditor()!.preferredLineHeight(position)),
     );
 
     additionalOffset = expandedRect.height >= editableSize.height
@@ -81,10 +107,8 @@ mixin RawEditorStateSelectionDelegateMixin on EditorState
 
   @override
   void userUpdateTextEditingValue(
-    TextEditingValue value,
+      TextEditingValue value, SelectionChangedCause cause) {
-    SelectionChangedCause cause,
+    textEditingValue = value;
-  ) {
-    setTextEditingValue(value);
   }
 
   @override

lib/src/widgets/raw_editor/raw_editor_state_text_input_client_mixin.dart

@@ -1,13 +1,15 @@
+import 'dart:ui';
+
+import 'package:flutter/animation.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
 
+import '../../models/documents/document.dart';
 import '../../utils/diff_delta.dart';
 import '../editor.dart';
 
 mixin RawEditorStateTextInputClientMixin on EditorState
     implements TextInputClient {
-  final List<TextEditingValue> _sentRemoteValues = [];
   TextInputConnection? _textInputConnection;
   TextEditingValue? _lastKnownRemoteTextEditingValue;
 
@@ -46,7 +48,7 @@ mixin RawEditorStateTextInputClientMixin on EditorState
     }
 
     if (!hasConnection) {
-      _lastKnownRemoteTextEditingValue = getTextEditingValue();
+      _lastKnownRemoteTextEditingValue = textEditingValue;
       _textInputConnection = TextInput.attach(
         this,
         TextInputConfiguration(
@@ -74,7 +76,6 @@ mixin RawEditorStateTextInputClientMixin on EditorState
     _textInputConnection!.close();
     _textInputConnection = null;
     _lastKnownRemoteTextEditingValue = null;
-    _sentRemoteValues.clear();
   }
 
   /// Updates remote value based on current state of [document] and
@@ -87,12 +88,14 @@ mixin RawEditorStateTextInputClientMixin on EditorState
       return;
     }
 
+    final value = textEditingValue;
+
     // Since we don't keep track of the composing range in value provided
     // by the Controller we need to add it here manually before comparing
     // with the last known remote value.
     // It is important to prevent excessive remote updates as it can cause
     // race conditions.
-    final actualValue = getTextEditingValue().copyWith(
+    final actualValue = value.copyWith(
       composing: _lastKnownRemoteTextEditingValue!.composing,
     );
 
@@ -100,18 +103,12 @@ mixin RawEditorStateTextInputClientMixin on EditorState
       return;
     }
 
-    final shouldRemember =
-        getTextEditingValue().text != _lastKnownRemoteTextEditingValue!.text;
     _lastKnownRemoteTextEditingValue = actualValue;
     _textInputConnection!.setEditingState(
       // Set composing to (-1, -1), otherwise an exception will be thrown if
       // the values are different.
       actualValue.copyWith(composing: const TextRange(start: -1, end: -1)),
     );
-    if (shouldRemember) {
-      // Only keep track if text changed (selection changes are not relevant)
-      _sentRemoteValues.add(actualValue);
-    }
   }
 
   @override
@@ -128,22 +125,6 @@ mixin RawEditorStateTextInputClientMixin on EditorState
       return;
     }
 
-    if (_sentRemoteValues.contains(value)) {
-      /// There is a race condition in Flutter text input plugin where sending
-      /// updates to native side too often results in broken behavior.
-      /// TextInputConnection.setEditingValue is an async call to native side.
-      /// For each such call native side _always_ sends an update which triggers
-      /// this method (updateEditingValue) with the same value we've sent it.
-      /// If multiple calls to setEditingValue happen too fast and we only
-      /// track the last sent value then there is no way for us to filter out
-      /// automatic callbacks from native side.
-      /// Therefore we have to keep track of all values we send to the native
-      /// side and when we see this same value appear here we skip it.
-      /// This is fragile but it's probably the only available option.
-      _sentRemoteValues.remove(value);
-      return;
-    }
-
     if (_lastKnownRemoteTextEditingValue == value) {
       // There is no difference between this value and the last known value.
       return;
@@ -167,8 +148,12 @@ mixin RawEditorStateTextInputClientMixin on EditorState
     final text = value.text;
     final cursorPosition = value.selection.extentOffset;
     final diff = getDiff(oldText, text, cursorPosition);
-    widget.controller.replaceText(
+    if (diff.deleted.isEmpty && diff.inserted.isEmpty) {
-        diff.start, diff.deleted.length, diff.inserted, value.selection);
+      widget.controller.updateSelection(value.selection, ChangeSource.LOCAL);
+    } else {
+      widget.controller.replaceText(
+          diff.start, diff.deleted.length, diff.inserted, value.selection);
+    }
   }
 
   @override
@@ -181,9 +166,119 @@ mixin RawEditorStateTextInputClientMixin on EditorState
     // no-op
   }
 
+  // The time it takes for the floating cursor to snap to the text aligned
+  // cursor position after the user has finished placing it.
+  static const Duration _floatingCursorResetTime = Duration(milliseconds: 125);
+
+  // The original position of the caret on FloatingCursorDragState.start.
+  Rect? _startCaretRect;
+
+  // The most recent text position as determined by the location of the floating
+  // cursor.
+  TextPosition? _lastTextPosition;
+
+  // The offset of the floating cursor as determined from the start call.
+  Offset? _pointOffsetOrigin;
+
+  // The most recent position of the floating cursor.
+  Offset? _lastBoundedOffset;
+
+  // Because the center of the cursor is preferredLineHeight / 2 below the touch
+  // origin, but the touch origin is used to determine which line the cursor is
+  // on, we need this offset to correctly render and move the cursor.
+  Offset _floatingCursorOffset(TextPosition textPosition) =>
+      Offset(0, getRenderEditor()!.preferredLineHeight(textPosition) / 2);
+
   @override
   void updateFloatingCursor(RawFloatingCursorPoint point) {
-    throw UnimplementedError();
+    switch (point.state) {
+      case FloatingCursorDragState.Start:
+        if (floatingCursorResetController.isAnimating) {
+          floatingCursorResetController.stop();
+          onFloatingCursorResetTick();
+        }
+        // We want to send in points that are centered around a (0,0) origin, so
+        // we cache the position.
+        _pointOffsetOrigin = point.offset;
+
+        final currentTextPosition =
+            TextPosition(offset: getRenderEditor()!.selection.baseOffset);
+        _startCaretRect =
+            getRenderEditor()!.getLocalRectForCaret(currentTextPosition);
+
+        _lastBoundedOffset = _startCaretRect!.center -
+            _floatingCursorOffset(currentTextPosition);
+        _lastTextPosition = currentTextPosition;
+        getRenderEditor()!.setFloatingCursor(
+            point.state, _lastBoundedOffset!, _lastTextPosition!);
+        break;
+      case FloatingCursorDragState.Update:
+        assert(_lastTextPosition != null, 'Last text position was not set');
+        final floatingCursorOffset = _floatingCursorOffset(_lastTextPosition!);
+        final centeredPoint = point.offset! - _pointOffsetOrigin!;
+        final rawCursorOffset =
+            _startCaretRect!.center + centeredPoint - floatingCursorOffset;
+
+        final preferredLineHeight =
+            getRenderEditor()!.preferredLineHeight(_lastTextPosition!);
+        _lastBoundedOffset =
+            getRenderEditor()!.calculateBoundedFloatingCursorOffset(
+          rawCursorOffset,
+          preferredLineHeight,
+        );
+        _lastTextPosition = getRenderEditor()!.getPositionForOffset(
+            getRenderEditor()!
+                .localToGlobal(_lastBoundedOffset! + floatingCursorOffset));
+        getRenderEditor()!.setFloatingCursor(
+            point.state, _lastBoundedOffset!, _lastTextPosition!);
+        final newSelection = TextSelection.collapsed(
+            offset: _lastTextPosition!.offset,
+            affinity: _lastTextPosition!.affinity);
+        // Setting selection as floating cursor moves will have scroll view
+        // bring background cursor into view
+        getRenderEditor()!
+            .onSelectionChanged(newSelection, SelectionChangedCause.forcePress);
+        break;
+      case FloatingCursorDragState.End:
+        // We skip animation if no update has happened.
+        if (_lastTextPosition != null && _lastBoundedOffset != null) {
+          floatingCursorResetController
+            ..value = 0.0
+            ..animateTo(1,
+                duration: _floatingCursorResetTime, curve: Curves.decelerate);
+        }
+        break;
+    }
+  }
+
+  /// Specifies the floating cursor dimensions and position based
+  /// the animation controller value.
+  /// The floating cursor is resized
+  /// (see [RenderAbstractEditor.setFloatingCursor])
+  /// and repositioned (linear interpolation between position of floating cursor
+  /// and current position of background cursor)
+  void onFloatingCursorResetTick() {
+    final finalPosition =
+        getRenderEditor()!.getLocalRectForCaret(_lastTextPosition!).centerLeft -
+            _floatingCursorOffset(_lastTextPosition!);
+    if (floatingCursorResetController.isCompleted) {
+      getRenderEditor()!.setFloatingCursor(
+          FloatingCursorDragState.End, finalPosition, _lastTextPosition!);
+      _startCaretRect = null;
+      _lastTextPosition = null;
+      _pointOffsetOrigin = null;
+      _lastBoundedOffset = null;
+    } else {
+      final lerpValue = floatingCursorResetController.value;
+      final lerpX =
+          lerpDouble(_lastBoundedOffset!.dx, finalPosition.dx, lerpValue)!;
+      final lerpY =
+          lerpDouble(_lastBoundedOffset!.dy, finalPosition.dy, lerpValue)!;
+
+      getRenderEditor()!.setFloatingCursor(FloatingCursorDragState.Update,
+          Offset(lerpX, lerpY), _lastTextPosition!,
+          resetLerpValue: lerpValue);
+    }
   }
 
   @override
@@ -199,6 +294,5 @@ mixin RawEditorStateTextInputClientMixin on EditorState
     _textInputConnection!.connectionClosedReceived();
     _textInputConnection = null;
     _lastKnownRemoteTextEditingValue = null;
-    _sentRemoteValues.clear();
   }
 }

lib/src/widgets/simple_viewer.dart

@@ -1,358 +0,0 @@
-import 'dart:convert';
-import 'dart:io' as io;
-
-import 'package:flutter/foundation.dart';
-import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
-import 'package:flutter/services.dart';
-import 'package:string_validator/string_validator.dart';
-import 'package:tuple/tuple.dart';
-
-import '../models/documents/attribute.dart';
-import '../models/documents/document.dart';
-import '../models/documents/nodes/block.dart';
-import '../models/documents/nodes/leaf.dart' as leaf;
-import '../models/documents/nodes/line.dart';
-import 'controller.dart';
-import 'cursor.dart';
-import 'default_styles.dart';
-import 'delegate.dart';
-import 'editor.dart';
-import 'text_block.dart';
-import 'text_line.dart';
-import 'video_app.dart';
-import 'youtube_video_app.dart';
-
-class QuillSimpleViewer extends StatefulWidget {
-  const QuillSimpleViewer({
-    required this.controller,
-    required this.readOnly,
-    this.customStyles,
-    this.truncate = false,
-    this.truncateScale,
-    this.truncateAlignment,
-    this.truncateHeight,
-    this.truncateWidth,
-    this.scrollBottomInset = 0,
-    this.padding = EdgeInsets.zero,
-    this.embedBuilder,
-    Key? key,
-  })  : assert(truncate ||
-            ((truncateScale == null) &&
-                (truncateAlignment == null) &&
-                (truncateHeight == null) &&
-                (truncateWidth == null))),
-        super(key: key);
-
-  final QuillController controller;
-  final DefaultStyles? customStyles;
-  final bool truncate;
-  final double? truncateScale;
-  final Alignment? truncateAlignment;
-  final double? truncateHeight;
-  final double? truncateWidth;
-  final double scrollBottomInset;
-  final EdgeInsetsGeometry padding;
-  final EmbedBuilder? embedBuilder;
-  final bool readOnly;
-
-  @override
-  _QuillSimpleViewerState createState() => _QuillSimpleViewerState();
-}
-
-class _QuillSimpleViewerState extends State<QuillSimpleViewer>
-    with SingleTickerProviderStateMixin {
-  late DefaultStyles _styles;
-  final LayerLink _toolbarLayerLink = LayerLink();
-  final LayerLink _startHandleLayerLink = LayerLink();
-  final LayerLink _endHandleLayerLink = LayerLink();
-  late CursorCont _cursorCont;
-
-  @override
-  void initState() {
-    super.initState();
-
-    _cursorCont = CursorCont(
-      show: ValueNotifier<bool>(false),
-      style: const CursorStyle(
-        color: Colors.black,
-        backgroundColor: Colors.grey,
-        width: 2,
-        radius: Radius.zero,
-        offset: Offset.zero,
-      ),
-      tickerProvider: this,
-    );
-  }
-
-  @override
-  void didChangeDependencies() {
-    super.didChangeDependencies();
-    final parentStyles = QuillStyles.getStyles(context, true);
-    final defaultStyles = DefaultStyles.getInstance(context);
-    _styles = (parentStyles != null)
-        ? defaultStyles.merge(parentStyles)
-        : defaultStyles;
-
-    if (widget.customStyles != null) {
-      _styles = _styles.merge(widget.customStyles!);
-    }
-  }
-
-  EmbedBuilder get embedBuilder => widget.embedBuilder ?? _defaultEmbedBuilder;
-
-  Widget _defaultEmbedBuilder(
-      BuildContext context, leaf.Embed node, bool readOnly) {
-    assert(!kIsWeb, 'Please provide EmbedBuilder for Web');
-    switch (node.value.type) {
-      case 'image':
-        final imageUrl = _standardizeImageUrl(node.value.data);
-        return imageUrl.startsWith('http')
-            ? Image.network(imageUrl)
-            : isBase64(imageUrl)
-                ? Image.memory(base64.decode(imageUrl))
-                : Image.file(io.File(imageUrl));
-      case 'video':
-        final videoUrl = node.value.data;
-        if (videoUrl.contains('youtube.com') || videoUrl.contains('youtu.be')) {
-          return YoutubeVideoApp(
-              videoUrl: videoUrl, context: context, readOnly: readOnly);
-        }
-        return VideoApp(
-            videoUrl: videoUrl, context: context, readOnly: readOnly);
-      default:
-        throw UnimplementedError(
-          'Embeddable type "${node.value.type}" is not supported by default '
-          'embed builder of QuillEditor. You must pass your own builder '
-          'function to embedBuilder property of QuillEditor or QuillField '
-          'widgets.',
-        );
-    }
-  }
-
-  String _standardizeImageUrl(String url) {
-    if (url.contains('base64')) {
-      return url.split(',')[1];
-    }
-    return url;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    final _doc = widget.controller.document;
-    // if (_doc.isEmpty() &&
-    //     !widget.focusNode.hasFocus &&
-    //     widget.placeholder != null) {
-    //   _doc = Document.fromJson(jsonDecode(
-    //       '[{"attributes":{"placeholder":true},"insert":"${widget.placeholder}\\n"}]'));
-    // }
-
-    Widget child = CompositedTransformTarget(
-      link: _toolbarLayerLink,
-      child: Semantics(
-        child: _SimpleViewer(
-          document: _doc,
-          textDirection: _textDirection,
-          startHandleLayerLink: _startHandleLayerLink,
-          endHandleLayerLink: _endHandleLayerLink,
-          onSelectionChanged: _nullSelectionChanged,
-          scrollBottomInset: widget.scrollBottomInset,
-          padding: widget.padding,
-          children: _buildChildren(_doc, context),
-        ),
-      ),
-    );
-
-    if (widget.truncate) {
-      if (widget.truncateScale != null) {
-        child = Container(
-            height: widget.truncateHeight,
-            child: Align(
-                heightFactor: widget.truncateScale,
-                widthFactor: widget.truncateScale,
-                alignment: widget.truncateAlignment ?? Alignment.topLeft,
-                child: Container(
-                    width: widget.truncateWidth! / widget.truncateScale!,
-                    child: SingleChildScrollView(
-                        physics: const NeverScrollableScrollPhysics(),
-                        child: Transform.scale(
-                            scale: widget.truncateScale!,
-                            alignment:
-                                widget.truncateAlignment ?? Alignment.topLeft,
-                            child: child)))));
-      } else {
-        child = Container(
-            height: widget.truncateHeight,
-            width: widget.truncateWidth,
-            child: SingleChildScrollView(
-                physics: const NeverScrollableScrollPhysics(), child: child));
-      }
-    }
-
-    return QuillStyles(data: _styles, child: child);
-  }
-
-  List<Widget> _buildChildren(Document doc, BuildContext context) {
-    final result = <Widget>[];
-    final indentLevelCounts = <int, int>{};
-    for (final node in doc.root.children) {
-      if (node is Line) {
-        final editableTextLine = _getEditableTextLineFromNode(node, context);
-        result.add(editableTextLine);
-      } else if (node is Block) {
-        final attrs = node.style.attributes;
-        final editableTextBlock = EditableTextBlock(
-            block: node,
-            textDirection: _textDirection,
-            scrollBottomInset: widget.scrollBottomInset,
-            verticalSpacing: _getVerticalSpacingForBlock(node, _styles),
-            textSelection: widget.controller.selection,
-            color: Colors.black,
-            styles: _styles,
-            enableInteractiveSelection: false,
-            hasFocus: false,
-            contentPadding: attrs.containsKey(Attribute.codeBlock.key)
-                ? const EdgeInsets.all(16)
-                : null,
-            embedBuilder: embedBuilder,
-            cursorCont: _cursorCont,
-            indentLevelCounts: indentLevelCounts,
-            onCheckboxTap: _handleCheckboxTap,
-            readOnly: widget.readOnly);
-        result.add(editableTextBlock);
-      } else {
-        throw StateError('Unreachable.');
-      }
-    }
-    return result;
-  }
-
-  /// Updates the checkbox positioned at [offset] in document
-  /// by changing its attribute according to [value].
-  void _handleCheckboxTap(int offset, bool value) {
-    // readonly - do nothing
-  }
-
-  TextDirection get _textDirection {
-    final result = Directionality.of(context);
-    return result;
-  }
-
-  EditableTextLine _getEditableTextLineFromNode(
-      Line node, BuildContext context) {
-    final textLine = TextLine(
-      line: node,
-      textDirection: _textDirection,
-      embedBuilder: embedBuilder,
-      styles: _styles,
-      readOnly: widget.readOnly,
-    );
-    final editableTextLine = EditableTextLine(
-        node,
-        null,
-        textLine,
-        0,
-        _getVerticalSpacingForLine(node, _styles),
-        _textDirection,
-        widget.controller.selection,
-        Colors.black,
-        //widget.selectionColor,
-        false,
-        //enableInteractiveSelection,
-        false,
-        //_hasFocus,
-        MediaQuery.of(context).devicePixelRatio,
-        _cursorCont);
-    return editableTextLine;
-  }
-
-  Tuple2<double, double> _getVerticalSpacingForLine(
-      Line line, DefaultStyles? defaultStyles) {
-    final attrs = line.style.attributes;
-    if (attrs.containsKey(Attribute.header.key)) {
-      final int? level = attrs[Attribute.header.key]!.value;
-      switch (level) {
-        case 1:
-          return defaultStyles!.h1!.verticalSpacing;
-        case 2:
-          return defaultStyles!.h2!.verticalSpacing;
-        case 3:
-          return defaultStyles!.h3!.verticalSpacing;
-        default:
-          throw 'Invalid level $level';
-      }
-    }
-
-    return defaultStyles!.paragraph!.verticalSpacing;
-  }
-
-  Tuple2<double, double> _getVerticalSpacingForBlock(
-      Block node, DefaultStyles? defaultStyles) {
-    final attrs = node.style.attributes;
-    if (attrs.containsKey(Attribute.blockQuote.key)) {
-      return defaultStyles!.quote!.verticalSpacing;
-    } else if (attrs.containsKey(Attribute.codeBlock.key)) {
-      return defaultStyles!.code!.verticalSpacing;
-    } else if (attrs.containsKey(Attribute.indent.key)) {
-      return defaultStyles!.indent!.verticalSpacing;
-    }
-    return defaultStyles!.lists!.verticalSpacing;
-  }
-
-  void _nullSelectionChanged(
-      TextSelection selection, SelectionChangedCause cause) {}
-}
-
-class _SimpleViewer extends MultiChildRenderObjectWidget {
-  _SimpleViewer({
-    required List<Widget> children,
-    required this.document,
-    required this.textDirection,
-    required this.startHandleLayerLink,
-    required this.endHandleLayerLink,
-    required this.onSelectionChanged,
-    required this.scrollBottomInset,
-    this.padding = EdgeInsets.zero,
-    Key? key,
-  }) : super(key: key, children: children);
-
-  final Document document;
-  final TextDirection textDirection;
-  final LayerLink startHandleLayerLink;
-  final LayerLink endHandleLayerLink;
-  final TextSelectionChangedHandler onSelectionChanged;
-  final double scrollBottomInset;
-  final EdgeInsetsGeometry padding;
-
-  @override
-  RenderEditor createRenderObject(BuildContext context) {
-    return RenderEditor(
-      null,
-      textDirection,
-      scrollBottomInset,
-      padding,
-      document,
-      const TextSelection(baseOffset: 0, extentOffset: 0),
-      false,
-      // hasFocus,
-      onSelectionChanged,
-      startHandleLayerLink,
-      endHandleLayerLink,
-      const EdgeInsets.fromLTRB(4, 4, 4, 5),
-    );
-  }
-
-  @override
-  void updateRenderObject(
-      BuildContext context, covariant RenderEditor renderObject) {
-    renderObject
-      ..document = document
-      ..setContainer(document.root)
-      ..textDirection = textDirection
-      ..setStartHandleLayerLink(startHandleLayerLink)
-      ..setEndHandleLayerLink(endHandleLayerLink)
-      ..onSelectionChanged = onSelectionChanged
-      ..setScrollBottomInset(scrollBottomInset)
-      ..setPadding(padding);
-  }
-}

lib/src/widgets/style_widgets/bullet_point.dart

@@ -0,0 +1,22 @@
+import 'package:flutter/material.dart';
+
+class QuillBulletPoint extends StatelessWidget {
+  const QuillBulletPoint({
+    required this.style,
+    required this.width,
+    Key? key,
+  }) : super(key: key);
+
+  final TextStyle style;
+  final double width;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      alignment: AlignmentDirectional.topEnd,
+      width: width,
+      padding: const EdgeInsetsDirectional.only(end: 13),
+      child: Text('•', style: style),
+    );
+  }
+}

lib/src/widgets/style_widgets/checkbox_point.dart

@@ -0,0 +1,78 @@
+import 'package:flutter/material.dart';
+
+class CheckboxPoint extends StatefulWidget {
+  const CheckboxPoint({
+    required this.size,
+    required this.value,
+    required this.enabled,
+    required this.onChanged,
+    this.uiBuilder,
+    Key? key,
+  }) : super(key: key);
+
+  final double size;
+  final bool value;
+  final bool enabled;
+  final ValueChanged<bool> onChanged;
+  final QuillCheckboxBuilder? uiBuilder;
+
+  @override
+  _CheckboxPointState createState() => _CheckboxPointState();
+}
+
+class _CheckboxPointState extends State<CheckboxPoint> {
+  @override
+  Widget build(BuildContext context) {
+    if (widget.uiBuilder != null) {
+      return widget.uiBuilder!.build(
+        context: context,
+        isChecked: widget.value,
+        onChanged: widget.onChanged,
+      );
+    }
+    final theme = Theme.of(context);
+    final fillColor = widget.value
+        ? (widget.enabled
+            ? theme.colorScheme.primary
+            : theme.colorScheme.onSurface.withOpacity(0.5))
+        : theme.colorScheme.surface;
+    final borderColor = widget.value
+        ? (widget.enabled
+            ? theme.colorScheme.primary
+            : theme.colorScheme.onSurface.withOpacity(0))
+        : (widget.enabled
+            ? theme.colorScheme.onSurface.withOpacity(0.5)
+            : theme.colorScheme.onSurface.withOpacity(0.3));
+    return Center(
+      child: SizedBox(
+        width: widget.size,
+        height: widget.size,
+        child: Material(
+          color: fillColor,
+          shape: RoundedRectangleBorder(
+            side: BorderSide(
+              color: borderColor,
+            ),
+            borderRadius: BorderRadius.circular(2),
+          ),
+          child: InkWell(
+            onTap:
+                widget.enabled ? () => widget.onChanged(!widget.value) : null,
+            child: widget.value
+                ? Icon(Icons.check,
+                    size: widget.size, color: theme.colorScheme.onPrimary)
+                : null,
+          ),
+        ),
+      ),
+    );
+  }
+}
+
+abstract class QuillCheckboxBuilder {
+  Widget build({
+    required BuildContext context,
+    required bool isChecked,
+    required ValueChanged<bool> onChanged,
+  });
+}

lib/src/widgets/style_widgets/number_point.dart

@@ -0,0 +1,108 @@
+import 'package:flutter/material.dart';
+
+import '../../models/documents/attribute.dart';
+import '../text_block.dart';
+
+class QuillNumberPoint extends StatelessWidget {
+  const QuillNumberPoint({
+    required this.index,
+    required this.indentLevelCounts,
+    required this.count,
+    required this.style,
+    required this.width,
+    required this.attrs,
+    this.withDot = true,
+    this.padding = 0.0,
+    Key? key,
+  }) : super(key: key);
+
+  final int index;
+  final Map<int?, int> indentLevelCounts;
+  final int count;
+  final TextStyle style;
+  final double width;
+  final Map<String, Attribute> attrs;
+  final bool withDot;
+  final double padding;
+
+  @override
+  Widget build(BuildContext context) {
+    var s = index.toString();
+    int? level = 0;
+    if (!attrs.containsKey(Attribute.indent.key) &&
+        !indentLevelCounts.containsKey(1)) {
+      indentLevelCounts.clear();
+      return Container(
+        alignment: AlignmentDirectional.topEnd,
+        width: width,
+        padding: EdgeInsetsDirectional.only(end: padding),
+        child: Text(withDot ? '$s.' : s, style: style),
+      );
+    }
+    if (attrs.containsKey(Attribute.indent.key)) {
+      level = attrs[Attribute.indent.key]!.value;
+    } else {
+      // first level but is back from previous indent level
+      // supposed to be "2."
+      indentLevelCounts[0] = 1;
+    }
+    if (indentLevelCounts.containsKey(level! + 1)) {
+      // last visited level is done, going up
+      indentLevelCounts.remove(level + 1);
+    }
+    final count = (indentLevelCounts[level] ?? 0) + 1;
+    indentLevelCounts[level] = count;
+
+    s = count.toString();
+    if (level % 3 == 1) {
+      // a. b. c. d. e. ...
+      s = _toExcelSheetColumnTitle(count);
+    } else if (level % 3 == 2) {
+      // i. ii. iii. ...
+      s = _intToRoman(count);
+    }
+    // level % 3 == 0 goes back to 1. 2. 3.
+
+    return Container(
+      alignment: AlignmentDirectional.topEnd,
+      width: width,
+      padding: EdgeInsetsDirectional.only(end: padding),
+      child: Text(withDot ? '$s.' : s, style: style),
+    );
+  }
+
+  String _toExcelSheetColumnTitle(int n) {
+    final result = StringBuffer();
+    while (n > 0) {
+      n--;
+      result.write(String.fromCharCode((n % 26).floor() + 97));
+      n = (n / 26).floor();
+    }
+
+    return result.toString().split('').reversed.join();
+  }
+
+  String _intToRoman(int input) {
+    var num = input;
+
+    if (num < 0) {
+      return '';
+    } else if (num == 0) {
+      return 'nulla';
+    }
+
+    final builder = StringBuffer();
+    for (var a = 0; a < arabianRomanNumbers.length; a++) {
+      final times = (num / arabianRomanNumbers[a])
+          .truncate(); // equals 1 only when arabianRomanNumbers[a] = num
+      // executes n times where n is the number of times you have to add
+      // the current roman number value to reach current num.
+      builder.write(romanNumbers[a] * times);
+      num -= times *
+          arabianRomanNumbers[
+              a]; // subtract previous roman number value from num
+    }
+
+    return builder.toString().toLowerCase();
+  }
+}

lib/src/widgets/style_widgets/style_widgets.dart

@@ -0,0 +1,3 @@
+export 'bullet_point.dart';
+export 'checkbox_point.dart';
+export 'number_point.dart';

lib/src/widgets/text_block.dart

@@ -1,16 +1,14 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
 import 'package:tuple/tuple.dart';
 
-import '../models/documents/attribute.dart';
+import '../../flutter_quill.dart';
 import '../models/documents/nodes/block.dart';
 import '../models/documents/nodes/line.dart';
 import 'box.dart';
 import 'cursor.dart';
-import 'default_styles.dart';
 import 'delegate.dart';
-import 'editor.dart';
+import 'link.dart';
 import 'text_line.dart';
 import 'text_selection.dart';
 
@@ -49,6 +47,7 @@ const List<String> romanNumbers = [
 class EditableTextBlock extends StatelessWidget {
   const EditableTextBlock(
       {required this.block,
+      required this.controller,
       required this.textDirection,
       required this.scrollBottomInset,
       required this.verticalSpacing,
@@ -59,14 +58,17 @@ class EditableTextBlock extends StatelessWidget {
       required this.hasFocus,
       required this.contentPadding,
       required this.embedBuilder,
+      required this.linkActionPicker,
       required this.cursorCont,
       required this.indentLevelCounts,
       required this.onCheckboxTap,
       required this.readOnly,
+      this.onLaunchUrl,
       this.customStyleBuilder,
       Key? key});
 
   final Block block;
+  final QuillController controller;
   final TextDirection textDirection;
   final double scrollBottomInset;
   final Tuple2 verticalSpacing;
@@ -77,6 +79,8 @@ class EditableTextBlock extends StatelessWidget {
   final bool hasFocus;
   final EdgeInsets? contentPadding;
   final EmbedBuilder embedBuilder;
+  final LinkActionPicker linkActionPicker;
+  final ValueChanged<String>? onLaunchUrl;
   final CustomStyleBuilder? customStyleBuilder;
   final CursorCont cursorCont;
   final Map<int, int> indentLevelCounts;
@@ -128,6 +132,9 @@ class EditableTextBlock extends StatelessWidget {
             customStyleBuilder: customStyleBuilder,
             styles: styles!,
             readOnly: readOnly,
+            controller: controller,
+            linkActionPicker: linkActionPicker,
+            onLaunchUrl: onLaunchUrl,
           ),
           _getIndentWidth(),
           _getSpacingForLine(line, index, count, defaultStyles),
@@ -148,7 +155,7 @@ class EditableTextBlock extends StatelessWidget {
     final defaultStyles = QuillStyles.getStyles(context, false);
     final attrs = line.style.attributes;
     if (attrs[Attribute.list.key] == Attribute.ol) {
-      return _NumberPoint(
+      return QuillNumberPoint(
         index: index,
         indentLevelCounts: indentLevelCounts,
         count: count,
@@ -160,7 +167,7 @@ class EditableTextBlock extends StatelessWidget {
     }
 
     if (attrs[Attribute.list.key] == Attribute.ul) {
-      return _BulletPoint(
+      return QuillBulletPoint(
         style:
             defaultStyles!.leading!.style.copyWith(fontWeight: FontWeight.bold),
         width: 32,
@@ -168,28 +175,25 @@ class EditableTextBlock extends StatelessWidget {
     }
 
     if (attrs[Attribute.list.key] == Attribute.checked) {
-      return _Checkbox(
+      return CheckboxPoint(
-        key: UniqueKey(),
+        size: 14,
-        style: defaultStyles!.leading!.style,
+        value: true,
-        width: 32,
+        enabled: !readOnly,
-        isChecked: true,
+        onChanged: (checked) => onCheckboxTap(line.documentOffset, checked),
-        offset: block.offset + line.offset,
-        onTap: onCheckboxTap,
       );
     }
 
     if (attrs[Attribute.list.key] == Attribute.unchecked) {
-      return _Checkbox(
+      return CheckboxPoint(
-        key: UniqueKey(),
+        size: 14,
-        style: defaultStyles!.leading!.style,
+        value: false,
-        width: 32,
+        enabled: !readOnly,
-        offset: block.offset + line.offset,
+        onChanged: (checked) => onCheckboxTap(line.documentOffset, checked),
-        onTap: onCheckboxTap,
       );
     }
 
     if (attrs.containsKey(Attribute.codeBlock.key)) {
-      return _NumberPoint(
+      return QuillNumberPoint(
         index: index,
         indentLevelCounts: indentLevelCounts,
         count: count,
@@ -217,7 +221,14 @@ class EditableTextBlock extends StatelessWidget {
       return 16.0 + extraIndent;
     }
 
-    return 32.0 + extraIndent;
+    var baseIndent = 0.0;
+
+    if (attrs.containsKey(Attribute.list.key) ||
+        attrs.containsKey(Attribute.codeBlock.key)) {
+      baseIndent = 32.0;
+    }
+
+    return baseIndent + extraIndent;
   }
 
   Tuple2 _getSpacingForLine(
@@ -551,6 +562,16 @@ class RenderEditableTextBlock extends RenderEditableContainerBox
       affinity: position.affinity,
     );
   }
+
+  @override
+  Rect getCaretPrototype(TextPosition position) {
+    final child = childAtPosition(position);
+    final localPosition = TextPosition(
+      offset: position.offset - child.getContainer().offset,
+      affinity: position.affinity,
+    );
+    return child.getCaretPrototype(localPosition);
+  }
 }
 
 class _EditableBlock extends MultiChildRenderObjectWidget {
@@ -600,166 +621,3 @@ class _EditableBlock extends MultiChildRenderObjectWidget {
       ..contentPadding = _contentPadding;
   }
 }
-
-class _NumberPoint extends StatelessWidget {
-  const _NumberPoint({
-    required this.index,
-    required this.indentLevelCounts,
-    required this.count,
-    required this.style,
-    required this.width,
-    required this.attrs,
-    this.withDot = true,
-    this.padding = 0.0,
-    Key? key,
-  }) : super(key: key);
-
-  final int index;
-  final Map<int?, int> indentLevelCounts;
-  final int count;
-  final TextStyle style;
-  final double width;
-  final Map<String, Attribute> attrs;
-  final bool withDot;
-  final double padding;
-
-  @override
-  Widget build(BuildContext context) {
-    var s = index.toString();
-    int? level = 0;
-    if (!attrs.containsKey(Attribute.indent.key) &&
-        !indentLevelCounts.containsKey(1)) {
-      indentLevelCounts.clear();
-      return Container(
-        alignment: AlignmentDirectional.topEnd,
-        width: width,
-        padding: EdgeInsetsDirectional.only(end: padding),
-        child: Text(withDot ? '$s.' : s, style: style),
-      );
-    }
-    if (attrs.containsKey(Attribute.indent.key)) {
-      level = attrs[Attribute.indent.key]!.value;
-    } else {
-      // first level but is back from previous indent level
-      // supposed to be "2."
-      indentLevelCounts[0] = 1;
-    }
-    if (indentLevelCounts.containsKey(level! + 1)) {
-      // last visited level is done, going up
-      indentLevelCounts.remove(level + 1);
-    }
-    final count = (indentLevelCounts[level] ?? 0) + 1;
-    indentLevelCounts[level] = count;
-
-    s = count.toString();
-    if (level % 3 == 1) {
-      // a. b. c. d. e. ...
-      s = _toExcelSheetColumnTitle(count);
-    } else if (level % 3 == 2) {
-      // i. ii. iii. ...
-      s = _intToRoman(count);
-    }
-    // level % 3 == 0 goes back to 1. 2. 3.
-
-    return Container(
-      alignment: AlignmentDirectional.topEnd,
-      width: width,
-      padding: EdgeInsetsDirectional.only(end: padding),
-      child: Text(withDot ? '$s.' : s, style: style),
-    );
-  }
-
-  String _toExcelSheetColumnTitle(int n) {
-    final result = StringBuffer();
-    while (n > 0) {
-      n--;
-      result.write(String.fromCharCode((n % 26).floor() + 97));
-      n = (n / 26).floor();
-    }
-
-    return result.toString().split('').reversed.join();
-  }
-
-  String _intToRoman(int input) {
-    var num = input;
-
-    if (num < 0) {
-      return '';
-    } else if (num == 0) {
-      return 'nulla';
-    }
-
-    final builder = StringBuffer();
-    for (var a = 0; a < arabianRomanNumbers.length; a++) {
-      final times = (num / arabianRomanNumbers[a])
-          .truncate(); // equals 1 only when arabianRomanNumbers[a] = num
-      // executes n times where n is the number of times you have to add
-      // the current roman number value to reach current num.
-      builder.write(romanNumbers[a] * times);
-      num -= times *
-          arabianRomanNumbers[
-              a]; // subtract previous roman number value from num
-    }
-
-    return builder.toString().toLowerCase();
-  }
-}
-
-class _BulletPoint extends StatelessWidget {
-  const _BulletPoint({
-    required this.style,
-    required this.width,
-    Key? key,
-  }) : super(key: key);
-
-  final TextStyle style;
-  final double width;
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      alignment: AlignmentDirectional.topEnd,
-      width: width,
-      padding: const EdgeInsetsDirectional.only(end: 13),
-      child: Text('•', style: style),
-    );
-  }
-}
-
-class _Checkbox extends StatelessWidget {
-  const _Checkbox({
-    Key? key,
-    this.style,
-    this.width,
-    this.isChecked = false,
-    this.offset,
-    this.onTap,
-  }) : super(key: key);
-  final TextStyle? style;
-  final double? width;
-  final bool isChecked;
-  final int? offset;
-  final Function(int, bool)? onTap;
-
-  void _onCheckboxClicked(bool? newValue) {
-    if (onTap != null && newValue != null && offset != null) {
-      onTap!(offset!, newValue);
-    }
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return Container(
-      alignment: AlignmentDirectional.topEnd,
-      width: width,
-      padding: const EdgeInsetsDirectional.only(end: 13),
-      child: GestureDetector(
-        onLongPress: () => _onCheckboxClicked(!isChecked),
-        child: Checkbox(
-          value: isChecked,
-          onChanged: _onCheckboxClicked,
-        ),
-      ),
-    );
-  }
-}

lib/src/widgets/text_line.dart

@@ -2,30 +2,37 @@ import 'dart:collection';
 import 'dart:math' as math;
 
 import 'package:flutter/foundation.dart';
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart';
+import 'package:flutter/services.dart';
 import 'package:tuple/tuple.dart';
+import 'package:url_launcher/url_launcher.dart';
 
-import '../models/documents/attribute.dart';
+import '../../flutter_quill.dart';
 import '../models/documents/nodes/container.dart' as container;
 import '../models/documents/nodes/leaf.dart' as leaf;
-import '../models/documents/nodes/leaf.dart';
 import '../models/documents/nodes/line.dart';
 import '../models/documents/nodes/node.dart';
+import '../models/documents/style.dart';
 import '../utils/color.dart';
 import 'box.dart';
 import 'cursor.dart';
-import 'default_styles.dart';
 import 'delegate.dart';
+import 'keyboard_listener.dart';
+import 'link.dart';
 import 'proxy.dart';
 import 'text_selection.dart';
 
-class TextLine extends StatelessWidget {
+class TextLine extends StatefulWidget {
   const TextLine({
     required this.line,
     required this.embedBuilder,
     required this.styles,
     required this.readOnly,
+    required this.controller,
+    required this.onLaunchUrl,
+    required this.linkActionPicker,
     this.textDirection,
     this.customStyleBuilder,
     Key? key,
@@ -36,56 +43,141 @@ class TextLine extends StatelessWidget {
   final EmbedBuilder embedBuilder;
   final DefaultStyles styles;
   final bool readOnly;
+  final QuillController controller;
   final CustomStyleBuilder? customStyleBuilder;
+  final ValueChanged<String>? onLaunchUrl;
+  final LinkActionPicker linkActionPicker;
+
+  @override
+  State<TextLine> createState() => _TextLineState();
+}
+
+class _TextLineState extends State<TextLine> {
+  bool _metaOrControlPressed = false;
+
+  UniqueKey _richTextKey = UniqueKey();
+
+  final _linkRecognizers = <Node, GestureRecognizer>{};
+
+  QuillPressedKeys? _pressedKeys;
+
+  void _pressedKeysChanged() {
+    final newValue = _pressedKeys!.metaPressed || _pressedKeys!.controlPressed;
+    if (_metaOrControlPressed != newValue) {
+      setState(() {
+        _metaOrControlPressed = newValue;
+        _richTextKey = UniqueKey();
+      });
+    }
+  }
+
+  bool get isDesktop => {
+        TargetPlatform.macOS,
+        TargetPlatform.linux,
+        TargetPlatform.windows
+      }.contains(defaultTargetPlatform);
+
+  bool get canLaunchLinks {
+    // In readOnly mode users can launch links
+    // by simply tapping (clicking) on them
+    if (widget.readOnly) return true;
+
+    // In editing mode it depends on the platform:
+
+    // Desktop platforms (macos, linux, windows):
+    // only allow Meta(Control)+Click combinations
+    if (isDesktop) {
+      return _metaOrControlPressed;
+    }
+    // Mobile platforms (ios, android): always allow but we install a
+    // long-press handler instead of a tap one. LongPress is followed by a
+    // context menu with actions.
+    return true;
+  }
+
+  @override
+  void didChangeDependencies() {
+    super.didChangeDependencies();
+    if (_pressedKeys == null) {
+      _pressedKeys = QuillPressedKeys.of(context);
+      _pressedKeys!.addListener(_pressedKeysChanged);
+    } else {
+      _pressedKeys!.removeListener(_pressedKeysChanged);
+      _pressedKeys = QuillPressedKeys.of(context);
+      _pressedKeys!.addListener(_pressedKeysChanged);
+    }
+  }
+
+  @override
+  void didUpdateWidget(covariant TextLine oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.readOnly != widget.readOnly) {
+      _richTextKey = UniqueKey();
+      _linkRecognizers
+        ..forEach((key, value) {
+          value.dispose();
+        })
+        ..clear();
+    }
+  }
+
+  @override
+  void dispose() {
+    _pressedKeys?.removeListener(_pressedKeysChanged);
+    _linkRecognizers
+      ..forEach((key, value) => value.dispose())
+      ..clear();
+    super.dispose();
+  }
 
   @override
   Widget build(BuildContext context) {
     assert(debugCheckHasMediaQuery(context));
-    if (line.hasEmbed && line.childCount == 1) {
+    if (widget.line.hasEmbed && widget.line.childCount == 1) {
       // For video, it is always single child
-      final embed = line.children.single as Embed;
+      final embed = widget.line.children.single as Embed;
-      return EmbedProxy(embedBuilder(context, embed, readOnly));
+      return EmbedProxy(widget.embedBuilder(context, embed, widget.readOnly));
     }
     final textSpan = _getTextSpanForWholeLine(context);
     final strutStyle = StrutStyle.fromTextStyle(textSpan.style!);
     final textAlign = _getTextAlign();
     final child = RichText(
+      key: _richTextKey,
       text: textSpan,
       textAlign: textAlign,
-      textDirection: textDirection,
+      textDirection: widget.textDirection,
       strutStyle: strutStyle,
       textScaleFactor: MediaQuery.textScaleFactorOf(context),
     );
     return RichTextProxy(
-        child,
+        textStyle: textSpan.style!,
-        textSpan.style!,
+        textAlign: textAlign,
-        textAlign,
+        textDirection: widget.textDirection!,
-        textDirection!,
+        strutStyle: strutStyle,
-        1,
+        locale: Localizations.localeOf(context),
-        Localizations.localeOf(context),
+        child: child);
-        strutStyle,
-        TextWidthBasis.parent,
-        null);
   }
 
   InlineSpan _getTextSpanForWholeLine(BuildContext context) {
-    final lineStyle = _getLineStyle(styles);
+    final lineStyle = _getLineStyle(widget.styles);
-    if (!line.hasEmbed) {
+    if (!widget.line.hasEmbed) {
-      return _buildTextSpan(styles, line.children, lineStyle);
+      return _buildTextSpan(widget.styles, widget.line.children, lineStyle);
     }
 
     // The line could contain more than one Embed & more than one Text
     final textSpanChildren = <InlineSpan>[];
     var textNodes = LinkedList<Node>();
-    for (final child in line.children) {
+    for (final child in widget.line.children) {
       if (child is Embed) {
         if (textNodes.isNotEmpty) {
-          textSpanChildren.add(_buildTextSpan(styles, textNodes, lineStyle));
+          textSpanChildren
+              .add(_buildTextSpan(widget.styles, textNodes, lineStyle));
           textNodes = LinkedList<Node>();
         }
         // Here it should be image
         final embed = WidgetSpan(
-            child: EmbedProxy(embedBuilder(context, child, readOnly)));
+            child: EmbedProxy(
+                widget.embedBuilder(context, child, widget.readOnly)));
         textSpanChildren.add(embed);
         continue;
       }
@@ -95,20 +187,20 @@ class TextLine extends StatelessWidget {
     }
 
     if (textNodes.isNotEmpty) {
-      textSpanChildren.add(_buildTextSpan(styles, textNodes, lineStyle));
+      textSpanChildren.add(_buildTextSpan(widget.styles, textNodes, lineStyle));
     }
 
     return TextSpan(style: lineStyle, children: textSpanChildren);
   }
 
   TextAlign _getTextAlign() {
-    final alignment = line.style.attributes[Attribute.align.key];
+    final alignment = widget.line.style.attributes[Attribute.align.key];
     if (alignment == Attribute.leftAlignment) {
-      return TextAlign.left;
+      return TextAlign.start;
     } else if (alignment == Attribute.centerAlignment) {
       return TextAlign.center;
     } else if (alignment == Attribute.rightAlignment) {
-      return TextAlign.right;
+      return TextAlign.end;
     } else if (alignment == Attribute.justifyAlignment) {
       return TextAlign.justify;
     }
@@ -118,7 +210,8 @@ class TextLine extends StatelessWidget {
   TextSpan _buildTextSpan(DefaultStyles defaultStyles, LinkedList<Node> nodes,
       TextStyle lineStyle) {
     final children = nodes
-        .map((node) => _getTextSpanFromNode(defaultStyles, node))
+        .map((node) =>
+            _getTextSpanFromNode(defaultStyles, node, widget.line.style))
         .toList(growable: false);
 
     return TextSpan(children: children, style: lineStyle);
@@ -127,11 +220,11 @@ class TextLine extends StatelessWidget {
   TextStyle _getLineStyle(DefaultStyles defaultStyles) {
     var textStyle = const TextStyle();
 
-    if (line.style.containsKey(Attribute.placeholder.key)) {
+    if (widget.line.style.containsKey(Attribute.placeholder.key)) {
       return defaultStyles.placeHolder!.style;
     }
 
-    final header = line.style.attributes[Attribute.header.key];
+    final header = widget.line.style.attributes[Attribute.header.key];
     final m = <Attribute, TextStyle>{
       Attribute.h1: defaultStyles.h1!.style,
       Attribute.h2: defaultStyles.h2!.style,
@@ -140,52 +233,75 @@ class TextLine extends StatelessWidget {
 
     textStyle = textStyle.merge(m[header] ?? defaultStyles.paragraph!.style);
 
-    final block = line.style.getBlockExceptHeader();
+    // Only retrieve exclusive block format for the line style purpose
+    Attribute? block;
+    widget.line.style.getBlocksExceptHeader().forEach((key, value) {
+      if (Attribute.exclusiveBlockKeys.contains(key)) {
+        block = value;
+      }
+    });
+
     TextStyle? toMerge;
     if (block == Attribute.blockQuote) {
       toMerge = defaultStyles.quote!.style;
     } else if (block == Attribute.codeBlock) {
       toMerge = defaultStyles.code!.style;
-    } else if (block != null) {
+    } else if (block == Attribute.list) {
       toMerge = defaultStyles.lists!.style;
     }
 
     textStyle = textStyle.merge(toMerge);
-    textStyle = _applyCustomAttributes(textStyle, line.style.attributes);
+    textStyle = _applyCustomAttributes(textStyle, widget.line.style.attributes);
 
     return textStyle;
   }
 
   TextStyle _applyCustomAttributes(
       TextStyle textStyle, Map<String, Attribute> attributes) {
-    if (customStyleBuilder == null) {
+    if (widget.customStyleBuilder == null) {
       return textStyle;
     }
     attributes.keys.forEach((key) {
       final attr = attributes[key];
       if (attr != null) {
         /// Custom Attribute
-        final customAttr = customStyleBuilder!.call(attr);
+        final customAttr = widget.customStyleBuilder!.call(attr);
         textStyle = textStyle.merge(customAttr);
       }
     });
     return textStyle;
   }
 
-  TextSpan _getTextSpanFromNode(DefaultStyles defaultStyles, Node node) {
+  TextSpan _getTextSpanFromNode(
+      DefaultStyles defaultStyles, Node node, Style lineStyle) {
     final textNode = node as leaf.Text;
-    final style = textNode.style;
+    final nodeStyle = textNode.style;
+    final isLink = nodeStyle.containsKey(Attribute.link.key) &&
+        nodeStyle.attributes[Attribute.link.key]!.value != null;
+
+    return TextSpan(
+      text: textNode.value,
+      style: _getInlineTextStyle(
+          textNode, defaultStyles, nodeStyle, lineStyle, isLink),
+      recognizer: isLink && canLaunchLinks ? _getRecognizer(node) : null,
+      mouseCursor: isLink && canLaunchLinks ? SystemMouseCursors.click : null,
+    );
+  }
+
+  TextStyle _getInlineTextStyle(leaf.Text textNode, DefaultStyles defaultStyles,
+      Style nodeStyle, Style lineStyle, bool isLink) {
     var res = const TextStyle(); // This is inline text style
     final color = textNode.style.attributes[Attribute.color.key];
 
     <String, TextStyle?>{
       Attribute.bold.key: defaultStyles.bold,
       Attribute.italic.key: defaultStyles.italic,
+      Attribute.small.key: defaultStyles.small,
       Attribute.link.key: defaultStyles.link,
       Attribute.underline.key: defaultStyles.underline,
       Attribute.strikeThrough.key: defaultStyles.strikeThrough,
     }.forEach((k, s) {
-      if (style.values.any((v) => v.key == k)) {
+      if (nodeStyle.values.any((v) => v.key == k)) {
         if (k == Attribute.underline.key || k == Attribute.strikeThrough.key) {
           var textColor = defaultStyles.color;
           if (color?.value is String) {
@@ -193,12 +309,19 @@ class TextLine extends StatelessWidget {
           }
           res = _merge(res.copyWith(decorationColor: textColor),
               s!.copyWith(decorationColor: textColor));
+        } else if (k == Attribute.link.key && !isLink) {
+          // null value for link should be ignored
+          // i.e. nodeStyle.attributes[Attribute.link.key]!.value == null
         } else {
           res = _merge(res, s!);
         }
       }
     });
 
+    if (nodeStyle.containsKey(Attribute.inlineCode.key)) {
+      res = _merge(res, defaultStyles.inlineCode!.styleFor(lineStyle));
+    }
+
     final font = textNode.style.attributes[Attribute.font.key];
     if (font != null && font.value != null) {
       res = res.merge(TextStyle(fontFamily: font.value));
@@ -217,7 +340,14 @@ class TextLine extends StatelessWidget {
           res = res.merge(defaultStyles.sizeHuge);
           break;
         default:
-          final fontSize = double.tryParse(size.value);
+          double? fontSize;
+          if (size.value is double) {
+            fontSize = size.value;
+          } else if (size.value is int) {
+            fontSize = size.value.toDouble();
+          } else if (size.value is String) {
+            fontSize = double.tryParse(size.value);
+          }
           if (fontSize != null) {
             res = res.merge(TextStyle(fontSize: fontSize));
           } else {
@@ -243,7 +373,96 @@ class TextLine extends StatelessWidget {
     }
 
     res = _applyCustomAttributes(res, textNode.style.attributes);
-    return TextSpan(text: textNode.value, style: res);
+    return res;
+  }
+
+  GestureRecognizer _getRecognizer(Node segment) {
+    if (_linkRecognizers.containsKey(segment)) {
+      return _linkRecognizers[segment]!;
+    }
+
+    if (isDesktop || widget.readOnly) {
+      _linkRecognizers[segment] = TapGestureRecognizer()
+        ..onTap = () => _tapNodeLink(segment);
+    } else {
+      _linkRecognizers[segment] = LongPressGestureRecognizer()
+        ..onLongPress = () => _longPressLink(segment);
+    }
+    return _linkRecognizers[segment]!;
+  }
+
+  Future<void> _launchUrl(String url) async {
+    await launch(url);
+  }
+
+  void _tapNodeLink(Node node) {
+    final link = node.style.attributes[Attribute.link.key]!.value;
+
+    _tapLink(link);
+  }
+
+  void _tapLink(String? link) {
+    if (!widget.readOnly || link == null) {
+      return;
+    }
+
+    var launchUrl = widget.onLaunchUrl;
+    launchUrl ??= _launchUrl;
+
+    link = link.trim();
+    if (!linkPrefixes
+        .any((linkPrefix) => link!.toLowerCase().startsWith(linkPrefix))) {
+      link = 'https://$link';
+    }
+    launchUrl(link);
+  }
+
+  Future<void> _longPressLink(Node node) async {
+    final link = node.style.attributes[Attribute.link.key]!.value!;
+    final action = await widget.linkActionPicker(node);
+    switch (action) {
+      case LinkMenuAction.launch:
+        _tapLink(link);
+        break;
+      case LinkMenuAction.copy:
+        // ignore: unawaited_futures
+        Clipboard.setData(ClipboardData(text: link));
+        break;
+      case LinkMenuAction.remove:
+        final range = _getLinkRange(node);
+        widget.controller
+            .formatText(range.start, range.end - range.start, Attribute.link);
+        break;
+      case LinkMenuAction.none:
+        break;
+    }
+  }
+
+  TextRange _getLinkRange(Node node) {
+    var start = node.documentOffset;
+    var length = node.length;
+    var prev = node.previous;
+    final linkAttr = node.style.attributes[Attribute.link.key]!;
+    while (prev != null) {
+      if (prev.style.attributes[Attribute.link.key] == linkAttr) {
+        start = prev.documentOffset;
+        length += prev.length;
+        prev = prev.previous;
+      } else {
+        break;
+      }
+    }
+
+    var next = node.next;
+    while (next != null) {
+      if (next.style.attributes[Attribute.link.key] == linkAttr) {
+        length += next.length;
+        next = next.next;
+      } else {
+        break;
+      }
+    }
+    return TextRange(start: start, end: start + length);
   }
 
   TextStyle _merge(TextStyle a, TextStyle b) {
@@ -296,6 +515,7 @@ class EditableTextLine extends RenderObjectWidget {
 
   @override
   RenderObject createRenderObject(BuildContext context) {
+    final defaultStyles = DefaultStyles.getInstance(context);
     return RenderEditableTextLine(
         line,
         textDirection,
@@ -305,12 +525,14 @@ class EditableTextLine extends RenderObjectWidget {
         devicePixelRatio,
         _getPadding(),
         color,
-        cursorCont);
+        cursorCont,
+        defaultStyles.inlineCode!);
   }
 
   @override
   void updateRenderObject(
       BuildContext context, covariant RenderEditableTextLine renderObject) {
+    final defaultStyles = DefaultStyles.getInstance(context);
     renderObject
       ..setLine(line)
       ..setPadding(_getPadding())
@@ -320,7 +542,8 @@ class EditableTextLine extends RenderObjectWidget {
       ..setEnableInteractiveSelection(enableInteractiveSelection)
       ..hasFocus = hasFocus
       ..setDevicePixelRatio(devicePixelRatio)
-      ..setCursorCont(cursorCont);
+      ..setCursorCont(cursorCont)
+      ..setInlineCodeStyle(defaultStyles.inlineCode!);
   }
 
   EdgeInsetsGeometry _getPadding() {
@@ -334,17 +557,18 @@ class EditableTextLine extends RenderObjectWidget {
 enum TextLineSlot { LEADING, BODY }
 
 class RenderEditableTextLine extends RenderEditableBox {
+  /// Creates new editable paragraph render box.
   RenderEditableTextLine(
-    this.line,
+      this.line,
-    this.textDirection,
+      this.textDirection,
-    this.textSelection,
+      this.textSelection,
-    this.enableInteractiveSelection,
+      this.enableInteractiveSelection,
-    this.hasFocus,
+      this.hasFocus,
-    this.devicePixelRatio,
+      this.devicePixelRatio,
-    this.padding,
+      this.padding,
-    this.color,
+      this.color,
-    this.cursorCont,
+      this.cursorCont,
-  );
+      this.inlineCodeStyle);
 
   RenderBox? _leading;
   RenderContentProxyBox? _body;
@@ -360,7 +584,8 @@ class RenderEditableTextLine extends RenderEditableBox {
   EdgeInsets? _resolvedPadding;
   bool? _containsCursor;
   List<TextBox>? _selectedRects;
-  Rect? _caretPrototype;
+  late Rect _caretPrototype;
+  InlineCodeStyle inlineCodeStyle;
   final Map<TextLineSlot, RenderBox> children = <TextLineSlot, RenderBox>{};
 
   Iterable<RenderBox> get _children sync* {
@@ -404,7 +629,7 @@ class RenderEditableTextLine extends RenderEditableBox {
 
     color = c;
     if (containsTextSelection()) {
-      markNeedsPaint();
+      safeMarkNeedsPaint();
     }
   }
 
@@ -414,9 +639,10 @@ class RenderEditableTextLine extends RenderEditableBox {
     }
 
     final containsSelection = containsTextSelection();
-    if (attached && containsCursor()) {
+    if (_attachedToCursorController) {
       cursorCont.removeListener(markNeedsLayout);
-      cursorCont.color.removeListener(markNeedsPaint);
+      cursorCont.color.removeListener(safeMarkNeedsPaint);
+      _attachedToCursorController = false;
     }
 
     textSelection = t;
@@ -424,11 +650,12 @@ class RenderEditableTextLine extends RenderEditableBox {
     _containsCursor = null;
     if (attached && containsCursor()) {
       cursorCont.addListener(markNeedsLayout);
-      cursorCont.color.addListener(markNeedsPaint);
+      cursorCont.color.addListener(safeMarkNeedsPaint);
+      _attachedToCursorController = true;
     }
 
     if (containsSelection || containsTextSelection()) {
-      markNeedsPaint();
+      safeMarkNeedsPaint();
     }
   }
 
@@ -468,14 +695,25 @@ class RenderEditableTextLine extends RenderEditableBox {
     _body = _updateChild(_body, b, TextLineSlot.BODY) as RenderContentProxyBox?;
   }
 
+  void setInlineCodeStyle(InlineCodeStyle newStyle) {
+    if (inlineCodeStyle == newStyle) return;
+    inlineCodeStyle = newStyle;
+    markNeedsLayout();
+  }
+
+  // Start selection implementation
+
   bool containsTextSelection() {
     return line.documentOffset <= textSelection.end &&
         textSelection.start <= line.documentOffset + line.length - 1;
   }
 
   bool containsCursor() {
-    return _containsCursor ??= textSelection.isCollapsed &&
+    return _containsCursor ??= cursorCont.isFloatingCursorActive
-        line.containsOffset(textSelection.baseOffset);
+        ? line
+            .containsOffset(cursorCont.floatingCursorTextPosition.value!.offset)
+        : textSelection.isCollapsed &&
+            line.containsOffset(textSelection.baseOffset);
   }
 
   RenderBox? _updateChild(
@@ -570,6 +808,9 @@ class RenderEditableTextLine extends RenderEditableBox {
     return _getPosition(position, 1.5);
   }
 
+  @override
+  bool get isRepaintBoundary => true;
+
   TextPosition? _getPosition(TextPosition textPosition, double dyScale) {
     assert(textPosition.offset < line.length);
     final offset = getOffsetForCaret(textPosition)
@@ -608,6 +849,17 @@ class RenderEditableTextLine extends RenderEditableBox {
       cursorCont.style.height ??
       preferredLineHeight(const TextPosition(offset: 0));
 
+  // TODO: This is no longer producing the highest-fidelity caret
+  // heights for Android, especially when non-alphabetic languages
+  // are involved. The current implementation overrides the height set
+  // here with the full measured height of the text on Android which looks
+  // superior (subjectively and in terms of fidelity) in _paintCaret. We
+  // should rework this properly to once again match the platform. The constant
+  // _kCaretHeightOffset scales poorly for small font sizes.
+  //
+  /// On iOS, the cursor is taller than the cursor on Android. The height
+  /// of the cursor for iOS is approximate and obtained through an eyeball
+  /// comparison.
   void _computeCaretPrototype() {
     switch (defaultTargetPlatform) {
       case TargetPlatform.iOS:
@@ -625,15 +877,30 @@ class RenderEditableTextLine extends RenderEditableBox {
     }
   }
 
+  void _onFloatingCursorChange() {
+    _containsCursor = null;
+    markNeedsPaint();
+  }
+
+  // End caret implementation
+
+  //
+
+  // Start render box overrides
+
+  bool _attachedToCursorController = false;
+
   @override
   void attach(covariant PipelineOwner owner) {
     super.attach(owner);
     for (final child in _children) {
       child.attach(owner);
     }
+    cursorCont.floatingCursorTextPosition.addListener(_onFloatingCursorChange);
     if (containsCursor()) {
       cursorCont.addListener(markNeedsLayout);
-      cursorCont.color.addListener(markNeedsPaint);
+      cursorCont.color.addListener(safeMarkNeedsPaint);
+      _attachedToCursorController = true;
     }
   }
 
@@ -643,9 +910,12 @@ class RenderEditableTextLine extends RenderEditableBox {
     for (final child in _children) {
       child.detach();
     }
-    if (containsCursor()) {
+    cursorCont.floatingCursorTextPosition
+        .removeListener(_onFloatingCursorChange);
+    if (_attachedToCursorController) {
       cursorCont.removeListener(markNeedsLayout);
-      cursorCont.color.removeListener(markNeedsPaint);
+      cursorCont.color.removeListener(safeMarkNeedsPaint);
+      _attachedToCursorController = false;
     }
   }
 
@@ -785,11 +1055,13 @@ class RenderEditableTextLine extends RenderEditableBox {
   }
 
   CursorPainter get _cursorPainter => CursorPainter(
-        _body,
+        editable: _body,
-        cursorCont.style,
+        style: cursorCont.style,
-        _caretPrototype!,
+        prototype: _caretPrototype,
-        cursorCont.color.value,
+        color: cursorCont.isFloatingCursorActive
-        devicePixelRatio,
+            ? cursorCont.style.backgroundColor
+            : cursorCont.color.value,
+        devicePixelRatio: devicePixelRatio,
       );
 
   @override
@@ -803,21 +1075,37 @@ class RenderEditableTextLine extends RenderEditableBox {
     if (_body != null) {
       final parentData = _body!.parentData as BoxParentData;
       final effectiveOffset = offset + parentData.offset;
-      if (enableInteractiveSelection &&
+
-          line.documentOffset <= textSelection.end &&
+      if (inlineCodeStyle.backgroundColor != null) {
-          textSelection.start <= line.documentOffset + line.length - 1) {
+        for (final item in line.children) {
-        final local = localSelection(line, textSelection, false);
+          if (item is! leaf.Text ||
-        _selectedRects ??= _body!.getBoxesForSelection(
+              !item.style.containsKey(Attribute.inlineCode.key)) {
-          local,
+            continue;
-        );
+          }
-        _paintSelection(context, effectiveOffset);
+          final textRange = TextSelection(
+              baseOffset: item.offset, extentOffset: item.offset + item.length);
+          final rects = _body!.getBoxesForSelection(textRange);
+          final paint = Paint()..color = inlineCodeStyle.backgroundColor!;
+          for (final box in rects) {
+            final rect = box.toRect().translate(0, 1).shift(effectiveOffset);
+            if (inlineCodeStyle.radius == null) {
+              final paintRect = Rect.fromLTRB(
+                  rect.left - 2, rect.top, rect.right + 2, rect.bottom);
+              context.canvas.drawRect(paintRect, paint);
+            } else {
+              final paintRect = RRect.fromLTRBR(rect.left - 2, rect.top,
+                  rect.right + 2, rect.bottom, inlineCodeStyle.radius!);
+              context.canvas.drawRRect(paintRect, paint);
+            }
+          }
+        }
       }
 
       if (hasFocus &&
           cursorCont.show.value &&
           containsCursor() &&
           !cursorCont.style.paintAboveText) {
-        _paintCursor(context, effectiveOffset);
+        _paintCursor(context, effectiveOffset, line.hasEmbed);
       }
 
       context.paintChild(_body!, effectiveOffset);
@@ -826,7 +1114,18 @@ class RenderEditableTextLine extends RenderEditableBox {
           cursorCont.show.value &&
           containsCursor() &&
           cursorCont.style.paintAboveText) {
-        _paintCursor(context, effectiveOffset);
+        _paintCursor(context, effectiveOffset, line.hasEmbed);
+      }
+
+      // paint the selection on the top
+      if (enableInteractiveSelection &&
+          line.documentOffset <= textSelection.end &&
+          textSelection.start <= line.documentOffset + line.length - 1) {
+        final local = localSelection(line, textSelection, false);
+        _selectedRects ??= _body!.getBoxesForSelection(
+          local,
+        );
+        _paintSelection(context, effectiveOffset);
       }
     }
   }
@@ -839,17 +1138,41 @@ class RenderEditableTextLine extends RenderEditableBox {
     }
   }
 
-  void _paintCursor(PaintingContext context, Offset effectiveOffset) {
+  void _paintCursor(
-    final position = TextPosition(
+      PaintingContext context, Offset effectiveOffset, bool lineHasEmbed) {
-      offset: textSelection.extentOffset - line.documentOffset,
+    final position = cursorCont.isFloatingCursorActive
-      affinity: textSelection.base.affinity,
+        ? TextPosition(
-    );
+            offset: cursorCont.floatingCursorTextPosition.value!.offset -
-    _cursorPainter.paint(context.canvas, effectiveOffset, position);
+                line.documentOffset,
+            affinity: cursorCont.floatingCursorTextPosition.value!.affinity)
+        : TextPosition(
+            offset: textSelection.extentOffset - line.documentOffset,
+            affinity: textSelection.base.affinity);
+    _cursorPainter.paint(
+        context.canvas, effectiveOffset, position, lineHasEmbed);
   }
 
   @override
   bool hitTestChildren(BoxHitTestResult result, {required Offset position}) {
-    return _children.first.hitTest(result, position: position);
+    if (_leading != null) {
+      final childParentData = _leading!.parentData as BoxParentData;
+      final isHit = result.addWithPaintOffset(
+          offset: childParentData.offset,
+          position: position,
+          hitTest: (result, transformed) {
+            assert(transformed == position - childParentData.offset);
+            return _leading!.hitTest(result, position: transformed);
+          });
+      if (isHit) return true;
+    }
+    if (_body == null) return false;
+    final parentData = _body!.parentData as BoxParentData;
+    return result.addWithPaintOffset(
+        offset: parentData.offset,
+        position: position,
+        hitTest: (result, position) {
+          return _body!.hitTest(result, position: position);
+        });
   }
 
   @override
@@ -872,6 +1195,17 @@ class RenderEditableTextLine extends RenderEditableBox {
       affinity: position.affinity,
     );
   }
+
+  void safeMarkNeedsPaint() {
+    if (!attached) {
+      //Should not paint if it was unattached.
+      return;
+    }
+    markNeedsPaint();
+  }
+
+  @override
+  Rect getCaretPrototype(TextPosition position) => _caretPrototype;
 }
 
 class _TextLineElement extends RenderObjectElement {

lib/src/widgets/text_selection.dart

@@ -1,11 +1,9 @@
 import 'dart:async';
 import 'dart:math' as math;
 
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:flutter/scheduler.dart';
 
 import '../models/documents/nodes/node.dart';
@@ -21,6 +19,8 @@ TextSelection localSelection(Node node, TextSelection selection, fromParent) {
       extentOffset: math.min(selection.end - offset, node.length - 1));
 }
 
+/// The text position that a give selection handle manipulates. Dragging the
+/// [start] handle always moves the [start]/[baseOffset] of the selection.
 enum _TextSelectionHandlePosition { START, END }
 
 /// internal use, used to get drag direction information
@@ -58,22 +58,29 @@ class DragTextSelection extends TextSelection {
   }
 }
 
+/// An object that manages a pair of text selection handles.
+///
+/// The selection handles are displayed in the [Overlay] that most closely
+/// encloses the given [BuildContext].
 class EditorTextSelectionOverlay {
-  EditorTextSelectionOverlay(
+  /// Creates an object that manages overlay entries for selection handles.
-    this.value,
+  ///
-    this.handlesVisible,
+  /// The [context] must not be null and must have an [Overlay] as an ancestor.
-    this.context,
+  EditorTextSelectionOverlay({
-    this.debugRequiredFor,
+    required this.value,
-    this.toolbarLayerLink,
+    required this.context,
-    this.startHandleLayerLink,
+    required this.toolbarLayerLink,
-    this.endHandleLayerLink,
+    required this.startHandleLayerLink,
-    this.renderObject,
+    required this.endHandleLayerLink,
-    this.selectionCtrls,
+    required this.renderObject,
-    this.selectionDelegate,
+    required this.debugRequiredFor,
-    this.dragStartBehavior,
+    required this.selectionCtrls,
+    required this.selectionDelegate,
+    required this.clipboardStatus,
     this.onSelectionHandleTapped,
-    this.clipboardStatus,
+    this.dragStartBehavior = DragStartBehavior.start,
-  ) {
+    this.handlesVisible = false,
+  }) {
     final overlay = Overlay.of(context, rootOverlay: true)!;
 
     _toolbarController = AnimationController(
@@ -81,20 +88,94 @@ class EditorTextSelectionOverlay {
   }
 
   TextEditingValue value;
+
+  /// Whether selection handles are visible.
+  ///
+  /// Set to false if you want to hide the handles. Use this property to show or
+  /// hide the handle without rebuilding them.
+  ///
+  /// If this method is called while the [SchedulerBinding.schedulerPhase] is
+  /// [SchedulerPhase.persistentCallbacks], i.e. during the build, layout, or
+  /// paint phases (see [WidgetsBinding.drawFrame]), then the update is delayed
+  /// until the post-frame callbacks phase. Otherwise the update is done
+  /// synchronously. This means that it is safe to call during builds, but also
+  /// that if you do call this during a build, the UI will not update until the
+  /// next frame (i.e. many milliseconds later).
+  ///
+  /// Defaults to false.
   bool handlesVisible = false;
+
+  /// The context in which the selection handles should appear.
+  ///
+  /// This context must have an [Overlay] as an ancestor because this object
+  /// will display the text selection handles in that [Overlay].
   final BuildContext context;
+
+  /// Debugging information for explaining why the [Overlay] is required.
   final Widget debugRequiredFor;
+
+  /// The object supplied to the [CompositedTransformTarget] that wraps the text
+  /// field.
   final LayerLink toolbarLayerLink;
+
+  /// The objects supplied to the [CompositedTransformTarget] that wraps the
+  /// location of start selection handle.
   final LayerLink startHandleLayerLink;
+
+  /// The objects supplied to the [CompositedTransformTarget] that wraps the
+  /// location of end selection handle.
   final LayerLink endHandleLayerLink;
+
+  /// The editable line in which the selected text is being displayed.
   final RenderEditor? renderObject;
+
+  /// Builds text selection handles and toolbar.
   final TextSelectionControls selectionCtrls;
+
+  /// The delegate for manipulating the current selection in the owning
+  /// text field.
   final TextSelectionDelegate selectionDelegate;
+
+  /// Determines the way that drag start behavior is handled.
+  ///
+  /// If set to [DragStartBehavior.start], handle drag behavior will
+  /// begin upon the detection of a drag gesture. If set to
+  /// [DragStartBehavior.down] it will begin when a down event is first
+  /// detected.
+  ///
+  /// In general, setting this to [DragStartBehavior.start] will make drag
+  /// animation smoother and setting it to [DragStartBehavior.down] will make
+  /// drag behavior feel slightly more reactive.
+  ///
+  /// By default, the drag start behavior is [DragStartBehavior.start].
+  ///
+  /// See also:
+  ///
+  ///  * [DragGestureRecognizer.dragStartBehavior],
+  ///  which gives an example for the different behaviors.
   final DragStartBehavior dragStartBehavior;
+
+  /// {@template flutter.widgets.textSelection.onSelectionHandleTapped}
+  /// A callback that's invoked when a selection handle is tapped.
+  ///
+  /// Both regular taps and long presses invoke this callback, but a drag
+  /// gesture won't.
+  /// {@endtemplate}
   final VoidCallback? onSelectionHandleTapped;
+
+  /// Maintains the status of the clipboard for determining if its contents can
+  /// be pasted or not.
+  ///
+  /// Useful because the actual value of the clipboard can only be checked
+  /// asynchronously (see [Clipboard.getData]).
   final ClipboardStatusNotifier clipboardStatus;
   late AnimationController _toolbarController;
+
+  /// A pair of handles. If this is non-null, there are always 2, though the
+  /// second is hidden when the selection is collapsed.
   List<OverlayEntry>? _handles;
+
+  /// A copy/paste toolbar.
   OverlayEntry? toolbar;
 
   TextSelection get _selection => value.selection;
@@ -106,6 +187,8 @@ class EditorTextSelectionOverlay {
       return;
     }
     handlesVisible = visible;
+    // If we are in build state, it will be too late to update visibility.
+    // We will need to schedule the build in next frame.
     if (SchedulerBinding.instance!.schedulerPhase ==
         SchedulerPhase.persistentCallbacks) {
       SchedulerBinding.instance!.addPostFrameCallback(markNeedsBuild);
@@ -114,6 +197,7 @@ class EditorTextSelectionOverlay {
     }
   }
 
+  /// Destroys the handles by removing them from overlay.
   void hideHandles() {
     if (_handles == null) {
       return;
@@ -123,6 +207,9 @@ class EditorTextSelectionOverlay {
     _handles = null;
   }
 
+  /// Hides the toolbar part of the overlay.
+  ///
+  /// To hide the whole overlay, see [hide].
   void hideToolbar() {
     assert(toolbar != null);
     _toolbarController.stop();
@@ -130,6 +217,7 @@ class EditorTextSelectionOverlay {
     toolbar = null;
   }
 
+  /// Shows the toolbar by inserting it into the [context]'s overlay.
   void showToolbar() {
     assert(toolbar == null);
     toolbar = OverlayEntry(builder: _buildToolbar);
@@ -161,6 +249,15 @@ class EditorTextSelectionOverlay {
         ));
   }
 
+  /// Updates the overlay after the selection has changed.
+  ///
+  /// If this method is called while the [SchedulerBinding.schedulerPhase] is
+  /// [SchedulerPhase.persistentCallbacks], i.e. during the build, layout, or
+  /// paint phases (see [WidgetsBinding.drawFrame]), then the update is delayed
+  /// until the post-frame callbacks phase. Otherwise the update is done
+  /// synchronously. This means that it is safe to call during builds, but also
+  /// that if you do call this during a build, the UI will not update until the
+  /// next frame (i.e. many milliseconds later).
   void update(TextEditingValue newValue) {
     if (value == newValue) {
       return;
@@ -210,6 +307,7 @@ class EditorTextSelectionOverlay {
   }
 
   Widget _buildToolbar(BuildContext context) {
+    // Find the horizontal midpoint, just above the selected text.
     final endpoints = renderObject!.getEndpointsForSelection(_selection);
 
     final editingRegion = Rect.fromPoints(
@@ -260,6 +358,7 @@ class EditorTextSelectionOverlay {
     toolbar?.markNeedsBuild();
   }
 
+  /// Hides the entire overlay including the toolbar and the handles.
   void hide() {
     if (_handles != null) {
       _handles![0].remove();
@@ -271,11 +370,13 @@ class EditorTextSelectionOverlay {
     }
   }
 
+  /// Final cleanup.
   void dispose() {
     hide();
     _toolbarController.dispose();
   }
 
+  /// Builds the handles by inserting them into the [context]'s overlay.
   void showHandles() {
     assert(_handles == null);
     _handles = <OverlayEntry>[
@@ -290,8 +391,17 @@ class EditorTextSelectionOverlay {
     Overlay.of(context, rootOverlay: true, debugRequiredFor: debugRequiredFor)!
         .insertAll(_handles!);
   }
+
+  /// Causes the overlay to update its rendering.
+  ///
+  /// This is intended to be called when the [renderObject] may have changed its
+  /// text metrics (e.g. because the text was scrolled).
+  void updateForScroll() {
+    markNeedsBuild();
+  }
 }
 
+/// This widget represents a single draggable text selection handle.
 class _TextSelectionHandleOverlay extends StatefulWidget {
   const _TextSelectionHandleOverlay({
     required this.selection,
@@ -407,6 +517,10 @@ class _TextSelectionHandleOverlayState
         break;
     }
 
+    if (newSelection.baseOffset >= newSelection.extentOffset) {
+      return; // don't allow order swapping.
+    }
+
     widget.onSelectionHandleChanged(newSelection);
   }
 
@@ -711,9 +825,12 @@ class _EditorTextSelectionGestureDetectorState
   Widget build(BuildContext context) {
     final gestures = <Type, GestureRecognizerFactory>{};
 
-    gestures[TapGestureRecognizer] =
+    // Use _TransparentTapGestureRecognizer so that TextSelectionGestureDetector
-        GestureRecognizerFactoryWithHandlers<TapGestureRecognizer>(
+    // can receive the same tap events that a selection handle placed visually
-      () => TapGestureRecognizer(debugOwner: this),
+    // on top of it also receives.
+    gestures[_TransparentTapGestureRecognizer] =
+        GestureRecognizerFactoryWithHandlers<_TransparentTapGestureRecognizer>(
+      () => _TransparentTapGestureRecognizer(debugOwner: this),
       (instance) {
         instance
           ..onTapDown = _handleTapDown
@@ -728,7 +845,8 @@ class _EditorTextSelectionGestureDetectorState
       gestures[LongPressGestureRecognizer] =
           GestureRecognizerFactoryWithHandlers<LongPressGestureRecognizer>(
         () => LongPressGestureRecognizer(
-            debugOwner: this, kind: PointerDeviceKind.touch),
+            debugOwner: this,
+            supportedDevices: <PointerDeviceKind>{PointerDeviceKind.touch}),
         (instance) {
           instance
             ..onLongPressStart = _handleLongPressStart
@@ -744,7 +862,8 @@ class _EditorTextSelectionGestureDetectorState
       gestures[HorizontalDragGestureRecognizer] =
           GestureRecognizerFactoryWithHandlers<HorizontalDragGestureRecognizer>(
         () => HorizontalDragGestureRecognizer(
-            debugOwner: this, kind: PointerDeviceKind.mouse),
+            debugOwner: this,
+            supportedDevices: <PointerDeviceKind>{PointerDeviceKind.mouse}),
         (instance) {
           instance
             ..dragStartBehavior = DragStartBehavior.down
@@ -776,3 +895,32 @@ class _EditorTextSelectionGestureDetectorState
     );
   }
 }
+
+// A TapGestureRecognizer which allows other GestureRecognizers to win in the
+// GestureArena. This means both _TransparentTapGestureRecognizer and other
+// GestureRecognizers can handle the same event.
+//
+// This enables proper handling of events on both the selection handle and the
+// underlying input, since there is significant overlap between the two given
+// the handle's padded hit area.  For example, the selection handle needs to
+// handle single taps on itself, but double taps need to be handled by the
+// underlying input.
+class _TransparentTapGestureRecognizer extends TapGestureRecognizer {
+  _TransparentTapGestureRecognizer({
+    Object? debugOwner,
+  }) : super(debugOwner: debugOwner);
+
+  @override
+  void rejectGesture(int pointer) {
+    // Accept new gestures that another recognizer has already won.
+    // Specifically, this needs to accept taps on the text selection handle on
+    // behalf of the text field in order to handle double tap to select. It must
+    // not accept other gestures like longpresses and drags that end outside of
+    // the text field.
+    if (state == GestureRecognizerState.ready) {
+      acceptGesture(pointer);
+    } else {
+      super.rejectGesture(pointer);
+    }
+  }
+}

lib/src/widgets/toolbar.dart

@@ -1,8 +1,11 @@
 import 'dart:io';
 
 import 'package:flutter/material.dart';
+import 'package:i18n_extension/i18n_widget.dart';
 
 import '../models/documents/attribute.dart';
+import '../models/themes/quill_dialog_theme.dart';
+import '../models/themes/quill_icon_theme.dart';
 import '../utils/media_pick_setting.dart';
 import 'controller.dart';
 import 'toolbar/arrow_indicated_button_list.dart';
@@ -14,6 +17,7 @@ import 'toolbar/image_button.dart';
 import 'toolbar/indent_button.dart';
 import 'toolbar/insert_embed_button.dart';
 import 'toolbar/link_style_button.dart';
+import 'toolbar/select_alignment_button.dart';
 import 'toolbar/select_header_style_button.dart';
 import 'toolbar/toggle_check_list_button.dart';
 import 'toolbar/toggle_style_button.dart';
@@ -29,6 +33,7 @@ export 'toolbar/insert_embed_button.dart';
 export 'toolbar/link_style_button.dart';
 export 'toolbar/quill_dropdown_button.dart';
 export 'toolbar/quill_icon_button.dart';
+export 'toolbar/select_alignment_button.dart';
 export 'toolbar/select_header_style_button.dart';
 export 'toolbar/toggle_check_list_button.dart';
 export 'toolbar/toggle_style_button.dart';
@@ -53,23 +58,36 @@ const double kIconButtonFactor = 1.77;
 class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
   const QuillToolbar({
     required this.children,
-    this.toolBarHeight = 36,
+    this.toolbarHeight = 36,
+    this.toolbarIconAlignment = WrapAlignment.center,
+    this.toolbarSectionSpacing = 4,
+    this.multiRowsDisplay = true,
     this.color,
     this.filePickImpl,
-    this.multiRowsDisplay,
+    this.locale,
     Key? key,
   }) : super(key: key);
 
   factory QuillToolbar.basic({
     required QuillController controller,
     double toolbarIconSize = kDefaultIconSize,
+    double toolbarSectionSpacing = 4,
+    WrapAlignment toolbarIconAlignment = WrapAlignment.center,
+    bool showDividers = true,
     bool showBoldButton = true,
     bool showItalicButton = true,
+    bool showSmallButton = false,
     bool showUnderLineButton = true,
     bool showStrikeThrough = true,
+    bool showInlineCode = true,
     bool showColorButton = true,
     bool showBackgroundColorButton = true,
     bool showClearFormat = true,
+    bool showAlignmentButtons = false,
+    bool showLeftAlignment = true,
+    bool showCenterAlignment = true,
+    bool showRightAlignment = true,
+    bool showJustifyAlignment = true,
     bool showHeaderStyle = true,
     bool showListNumbers = true,
     bool showListBullets = true,
@@ -90,19 +108,42 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
     FilePickImpl? filePickImpl,
     WebImagePickImpl? webImagePickImpl,
     WebVideoPickImpl? webVideoPickImpl,
+
+    ///The theme to use for the icons in the toolbar, uses type [QuillIconTheme]
+    QuillIconTheme? iconTheme,
+
+    ///The theme to use for the theming of the [LinkDialog()],
+    ///shown when embedding an image, for example
+    QuillDialogTheme? dialogTheme,
+
+    ///The locale to use for the editor toolbar, defaults to system locale
+    ///Currently the supported locales are:
+    /// * Locale('en')
+    /// * Locale('de')
+    /// * Locale('fr')
+    /// * Locale('zh')
+    /// and more https://github.com/singerdmx/flutter-quill#translation-of-toolbar
+    Locale? locale,
     Key? key,
   }) {
     final isButtonGroupShown = [
       showHistory ||
           showBoldButton ||
           showItalicButton ||
+          showSmallButton ||
           showUnderLineButton ||
           showStrikeThrough ||
+          showInlineCode ||
           showColorButton ||
           showBackgroundColorButton ||
           showClearFormat ||
           onImagePickCallback != null ||
           onVideoPickCallback != null,
+      showAlignmentButtons,
+      showLeftAlignment,
+      showCenterAlignment,
+      showRightAlignment,
+      showJustifyAlignment,
       showHeaderStyle,
       showListNumbers || showListBullets || showListCheck || showCodeBlock,
       showQuote || showIndent,
@@ -111,8 +152,11 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
 
     return QuillToolbar(
       key: key,
-      toolBarHeight: toolbarIconSize * 2,
+      toolbarHeight: toolbarIconSize * 2,
+      toolbarSectionSpacing: toolbarSectionSpacing,
+      toolbarIconAlignment: toolbarIconAlignment,
       multiRowsDisplay: multiRowsDisplay,
+      locale: locale,
       children: [
         if (showHistory)
           HistoryButton(
@@ -120,6 +164,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             iconSize: toolbarIconSize,
             controller: controller,
             undo: true,
+            iconTheme: iconTheme,
           ),
         if (showHistory)
           HistoryButton(
@@ -127,6 +172,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             iconSize: toolbarIconSize,
             controller: controller,
             undo: false,
+            iconTheme: iconTheme,
           ),
         if (showBoldButton)
           ToggleStyleButton(
@@ -134,6 +180,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             icon: Icons.format_bold,
             iconSize: toolbarIconSize,
             controller: controller,
+            iconTheme: iconTheme,
           ),
         if (showItalicButton)
           ToggleStyleButton(
@@ -141,6 +188,15 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             icon: Icons.format_italic,
             iconSize: toolbarIconSize,
             controller: controller,
+            iconTheme: iconTheme,
+          ),
+        if (showSmallButton)
+          ToggleStyleButton(
+            attribute: Attribute.small,
+            icon: Icons.format_size,
+            iconSize: toolbarIconSize,
+            controller: controller,
+            iconTheme: iconTheme,
           ),
         if (showUnderLineButton)
           ToggleStyleButton(
@@ -148,6 +204,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             icon: Icons.format_underline,
             iconSize: toolbarIconSize,
             controller: controller,
+            iconTheme: iconTheme,
           ),
         if (showStrikeThrough)
           ToggleStyleButton(
@@ -155,6 +212,15 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             icon: Icons.format_strikethrough,
             iconSize: toolbarIconSize,
             controller: controller,
+            iconTheme: iconTheme,
+          ),
+        if (showInlineCode)
+          ToggleStyleButton(
+            attribute: Attribute.inlineCode,
+            icon: Icons.code,
+            iconSize: toolbarIconSize,
+            controller: controller,
+            iconTheme: iconTheme,
           ),
         if (showColorButton)
           ColorButton(
@@ -162,6 +228,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             iconSize: toolbarIconSize,
             controller: controller,
             background: false,
+            iconTheme: iconTheme,
           ),
         if (showBackgroundColorButton)
           ColorButton(
@@ -169,12 +236,14 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             iconSize: toolbarIconSize,
             controller: controller,
             background: true,
+            iconTheme: iconTheme,
           ),
         if (showClearFormat)
           ClearFormatButton(
             icon: Icons.format_clear,
             iconSize: toolbarIconSize,
             controller: controller,
+            iconTheme: iconTheme,
           ),
         if (showImageButton)
           ImageButton(
@@ -185,6 +254,8 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             filePickImpl: filePickImpl,
             webImagePickImpl: webImagePickImpl,
             mediaPickSettingSelector: mediaPickSettingSelector,
+            iconTheme: iconTheme,
+            dialogTheme: dialogTheme,
           ),
         if (showVideoButton)
           VideoButton(
@@ -195,37 +266,67 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             filePickImpl: filePickImpl,
             webVideoPickImpl: webImagePickImpl,
             mediaPickSettingSelector: mediaPickSettingSelector,
+            iconTheme: iconTheme,
+            dialogTheme: dialogTheme,
           ),
         if ((onImagePickCallback != null || onVideoPickCallback != null) &&
             showCameraButton)
           CameraButton(
-              icon: Icons.photo_camera,
+            icon: Icons.photo_camera,
-              iconSize: toolbarIconSize,
+            iconSize: toolbarIconSize,
-              controller: controller,
+            controller: controller,
-              onImagePickCallback: onImagePickCallback,
+            onImagePickCallback: onImagePickCallback,
-              onVideoPickCallback: onVideoPickCallback,
+            onVideoPickCallback: onVideoPickCallback,
-              filePickImpl: filePickImpl,
+            filePickImpl: filePickImpl,
-              webImagePickImpl: webImagePickImpl,
+            webImagePickImpl: webImagePickImpl,
-              webVideoPickImpl: webVideoPickImpl),
+            webVideoPickImpl: webVideoPickImpl,
-        if (isButtonGroupShown[0] &&
+            iconTheme: iconTheme,
+          ),
+        if (showDividers &&
+            isButtonGroupShown[0] &&
             (isButtonGroupShown[1] ||
                 isButtonGroupShown[2] ||
                 isButtonGroupShown[3] ||
-                isButtonGroupShown[4]))
+                isButtonGroupShown[4] ||
+                isButtonGroupShown[5]))
           VerticalDivider(
             indent: 12,
             endIndent: 12,
             color: Colors.grey.shade400,
           ),
-        if (showHeaderStyle)
+        if (showAlignmentButtons)
-          SelectHeaderStyleButton(
+          SelectAlignmentButton(
             controller: controller,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
+            showLeftAlignment: showLeftAlignment,
+            showCenterAlignment: showCenterAlignment,
+            showRightAlignment: showRightAlignment,
+            showJustifyAlignment: showJustifyAlignment,
           ),
-        if (isButtonGroupShown[1] &&
+        if (showDividers &&
+            isButtonGroupShown[1] &&
             (isButtonGroupShown[2] ||
                 isButtonGroupShown[3] ||
-                isButtonGroupShown[4]))
+                isButtonGroupShown[4] ||
+                isButtonGroupShown[5]))
+          VerticalDivider(
+            indent: 12,
+            endIndent: 12,
+            color: Colors.grey.shade400,
+          ),
+        if (showHeaderStyle)
+          SelectHeaderStyleButton(
+            controller: controller,
+            iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
+          ),
+        if (showDividers &&
+            showHeaderStyle &&
+            isButtonGroupShown[2] &&
+            (isButtonGroupShown[3] ||
+                isButtonGroupShown[4] ||
+                isButtonGroupShown[5]))
           VerticalDivider(
             indent: 12,
             endIndent: 12,
@@ -237,6 +338,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             controller: controller,
             icon: Icons.format_list_numbered,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
           ),
         if (showListBullets)
           ToggleStyleButton(
@@ -244,6 +346,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             controller: controller,
             icon: Icons.format_list_bulleted,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
           ),
         if (showListCheck)
           ToggleCheckListButton(
@@ -251,6 +354,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             controller: controller,
             icon: Icons.check_box,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
           ),
         if (showCodeBlock)
           ToggleStyleButton(
@@ -258,9 +362,11 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             controller: controller,
             icon: Icons.code,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
           ),
-        if (isButtonGroupShown[2] &&
+        if (showDividers &&
-            (isButtonGroupShown[3] || isButtonGroupShown[4]))
+            isButtonGroupShown[3] &&
+            (isButtonGroupShown[4] || isButtonGroupShown[5]))
           VerticalDivider(
             indent: 12,
             endIndent: 12,
@@ -272,6 +378,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             controller: controller,
             icon: Icons.format_quote,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
           ),
         if (showIndent)
           IndentButton(
@@ -279,6 +386,7 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             iconSize: toolbarIconSize,
             controller: controller,
             isIncrease: true,
+            iconTheme: iconTheme,
           ),
         if (showIndent)
           IndentButton(
@@ -286,8 +394,9 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
             iconSize: toolbarIconSize,
             controller: controller,
             isIncrease: false,
+            iconTheme: iconTheme,
           ),
-        if (isButtonGroupShown[3] && isButtonGroupShown[4])
+        if (showDividers && isButtonGroupShown[4] && isButtonGroupShown[5])
           VerticalDivider(
             indent: 12,
             endIndent: 12,
@@ -297,20 +406,25 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
           LinkStyleButton(
             controller: controller,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
+            dialogTheme: dialogTheme,
           ),
         if (showHorizontalRule)
           InsertEmbedButton(
             controller: controller,
             icon: Icons.horizontal_rule,
             iconSize: toolbarIconSize,
+            iconTheme: iconTheme,
           ),
       ],
     );
   }
 
   final List<Widget> children;
-  final double toolBarHeight;
+  final double toolbarHeight;
-  final bool? multiRowsDisplay;
+  final double toolbarSectionSpacing;
+  final WrapAlignment toolbarIconAlignment;
+  final bool multiRowsDisplay;
 
   /// The color of the toolbar.
   ///
@@ -320,23 +434,35 @@ class QuillToolbar extends StatelessWidget implements PreferredSizeWidget {
 
   final FilePickImpl? filePickImpl;
 
+  ///The locale to use for the editor toolbar, defaults to system locale
+  ///Currently the supported locales are:
+  /// * Locale('en')
+  /// * Locale('de')
+  /// * Locale('fr')
+  /// * Locale('zh', 'CN')
+  /// and more https://github.com/singerdmx/flutter-quill#translation-of-toolbar
+  final Locale? locale;
+
   @override
-  Size get preferredSize => Size.fromHeight(toolBarHeight);
+  Size get preferredSize => Size.fromHeight(toolbarHeight);
 
   @override
   Widget build(BuildContext context) {
-    if (multiRowsDisplay ?? true) {
+    return I18n(
-      return Wrap(
+      initialLocale: locale,
-        alignment: WrapAlignment.center,
+      child: multiRowsDisplay
-        runSpacing: 4,
+          ? Wrap(
-        spacing: 4,
+              alignment: toolbarIconAlignment,
-        children: children,
+              runSpacing: 4,
-      );
+              spacing: toolbarSectionSpacing,
-    }
+              children: children,
-    return Container(
+            )
-      constraints: BoxConstraints.tightFor(height: preferredSize.height),
+          : Container(
-      color: color ?? Theme.of(context).canvasColor,
+              constraints:
-      child: ArrowIndicatedButtonList(buttons: children),
+                  BoxConstraints.tightFor(height: preferredSize.height),
+              color: color ?? Theme.of(context).canvasColor,
+              child: ArrowIndicatedButtonList(buttons: children),
+            ),
     );
   }
 }

lib/src/widgets/toolbar/arrow_indicated_button_list.dart

@@ -60,6 +60,8 @@ class _ArrowIndicatedButtonListState extends State<ArrowIndicatedButtonList>
   }
 
   void _handleScroll() {
+    if (!mounted) return;
+
     setState(() {
       _showLeftArrow =
           _controller.position.minScrollExtent != _controller.position.pixels;

lib/src/widgets/toolbar/camera_button.dart

@@ -1,11 +1,10 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../toolbar.dart';
 import 'image_video_utils.dart';
-import 'quill_icon_button.dart';
 
 class CameraButton extends StatelessWidget {
   const CameraButton({
@@ -18,6 +17,7 @@ class CameraButton extends StatelessWidget {
     this.filePickImpl,
     this.webImagePickImpl,
     this.webVideoPickImpl,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -38,16 +38,22 @@ class CameraButton extends StatelessWidget {
 
   final FilePickImpl? filePickImpl;
 
+  final QuillIconTheme? iconTheme;
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
 
+    final iconColor = iconTheme?.iconUnselectedColor ?? theme.iconTheme.color;
+    final iconFillColor =
+        iconTheme?.iconUnselectedFillColor ?? (fillColor ?? theme.canvasColor);
+
     return QuillIconButton(
-      icon: Icon(icon, size: iconSize, color: theme.iconTheme.color),
+      icon: Icon(icon, size: iconSize, color: iconColor),
       highlightElevation: 0,
       hoverElevation: 0,
       size: iconSize * 1.77,
-      fillColor: fillColor ?? theme.canvasColor,
+      fillColor: iconFillColor,
       onPressed: () => _handleCameraButtonTap(context, controller,
           onImagePickCallback: onImagePickCallback,
           onVideoPickCallback: onVideoPickCallback,

lib/src/widgets/toolbar/clear_format_button.dart

@@ -1,13 +1,13 @@
 import 'package:flutter/material.dart';
 
 import '../../../flutter_quill.dart';
-import 'quill_icon_button.dart';
 
 class ClearFormatButton extends StatefulWidget {
   const ClearFormatButton({
     required this.icon,
     required this.controller,
     this.iconSize = kDefaultIconSize,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -16,6 +16,8 @@ class ClearFormatButton extends StatefulWidget {
 
   final QuillController controller;
 
+  final QuillIconTheme? iconTheme;
+
   @override
   _ClearFormatButtonState createState() => _ClearFormatButtonState();
 }
@@ -24,8 +26,10 @@ class _ClearFormatButtonState extends State<ClearFormatButton> {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
-    final iconColor = theme.iconTheme.color;
+    final iconColor =
-    final fillColor = theme.canvasColor;
+        widget.iconTheme?.iconUnselectedColor ?? theme.iconTheme.color;
+    final fillColor =
+        widget.iconTheme?.iconUnselectedFillColor ?? theme.canvasColor;
     return QuillIconButton(
         highlightElevation: 0,
         hoverElevation: 0,

lib/src/widgets/toolbar/color_button.dart

@@ -3,10 +3,11 @@ import 'package:flutter_colorpicker/flutter_colorpicker.dart';
 
 import '../../models/documents/attribute.dart';
 import '../../models/documents/style.dart';
+import '../../models/themes/quill_icon_theme.dart';
+import '../../translations/toolbar.i18n.dart';
 import '../../utils/color.dart';
 import '../controller.dart';
 import '../toolbar.dart';
-import 'quill_icon_button.dart';
 
 /// Controls color styles.
 ///
@@ -18,6 +19,7 @@ class ColorButton extends StatefulWidget {
     required this.controller,
     required this.background,
     this.iconSize = kDefaultIconSize,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -25,6 +27,7 @@ class ColorButton extends StatefulWidget {
   final double iconSize;
   final bool background;
   final QuillController controller;
+  final QuillIconTheme? iconTheme;
 
   @override
   _ColorButtonState createState() => _ColorButtonState();
@@ -98,20 +101,20 @@ class _ColorButtonState extends State<ColorButton> {
     final theme = Theme.of(context);
     final iconColor = _isToggledColor && !widget.background && !_isWhite
         ? stringToColor(_selectionStyle.attributes['color']!.value)
-        : theme.iconTheme.color;
+        : (widget.iconTheme?.iconUnselectedColor ?? theme.iconTheme.color);
 
     final iconColorBackground =
         _isToggledBackground && widget.background && !_isWhitebackground
             ? stringToColor(_selectionStyle.attributes['background']!.value)
-            : theme.iconTheme.color;
+            : (widget.iconTheme?.iconUnselectedColor ?? theme.iconTheme.color);
 
     final fillColor = _isToggledColor && !widget.background && _isWhite
         ? stringToColor('#ffffff')
-        : theme.canvasColor;
+        : (widget.iconTheme?.iconUnselectedFillColor ?? theme.canvasColor);
     final fillColorBackground =
         _isToggledBackground && widget.background && _isWhitebackground
             ? stringToColor('#ffffff')
-            : theme.canvasColor;
+            : (widget.iconTheme?.iconUnselectedFillColor ?? theme.canvasColor);
 
     return QuillIconButton(
       highlightElevation: 0,
@@ -140,7 +143,7 @@ class _ColorButtonState extends State<ColorButton> {
     showDialog(
       context: context,
       builder: (context) => AlertDialog(
-        title: const Text('Select Color'),
+        title: Text('Select Color'.i18n),
         backgroundColor: Theme.of(context).canvasColor,
         content: SingleChildScrollView(
           child: MaterialPicker(

lib/src/widgets/toolbar/history_button.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 
 import '../../../flutter_quill.dart';
-import 'quill_icon_button.dart';
 
 class HistoryButton extends StatefulWidget {
   const HistoryButton({
@@ -9,6 +8,7 @@ class HistoryButton extends StatefulWidget {
     required this.controller,
     required this.undo,
     this.iconSize = kDefaultIconSize,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -16,6 +16,7 @@ class HistoryButton extends StatefulWidget {
   final double iconSize;
   final bool undo;
   final QuillController controller;
+  final QuillIconTheme? iconTheme;
 
   @override
   _HistoryButtonState createState() => _HistoryButtonState();
@@ -30,7 +31,8 @@ class _HistoryButtonState extends State<HistoryButton> {
     theme = Theme.of(context);
     _setIconColor();
 
-    final fillColor = theme.canvasColor;
+    final fillColor =
+        widget.iconTheme?.iconUnselectedFillColor ?? theme.canvasColor;
     widget.controller.changes.listen((event) async {
       _setIconColor();
     });
@@ -50,14 +52,14 @@ class _HistoryButtonState extends State<HistoryButton> {
     if (widget.undo) {
       setState(() {
         _iconColor = widget.controller.hasUndo
-            ? theme.iconTheme.color
+            ? widget.iconTheme?.iconUnselectedColor ?? theme.iconTheme.color
-            : theme.disabledColor;
+            : widget.iconTheme?.disabledIconColor ?? theme.disabledColor;
       });
     } else {
       setState(() {
         _iconColor = widget.controller.hasRedo
-            ? theme.iconTheme.color
+            ? widget.iconTheme?.iconUnselectedColor ?? theme.iconTheme.color
-            : theme.disabledColor;
+            : widget.iconTheme?.disabledIconColor ?? theme.disabledColor;
       });
     }
   }

lib/src/widgets/toolbar/image_button.dart

@@ -2,12 +2,12 @@ import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
 import '../../models/documents/nodes/embed.dart';
-import '../../utils/media_pick_setting.dart';
+import '../../models/themes/quill_dialog_theme.dart';
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../link_dialog.dart';
 import '../toolbar.dart';
 import 'image_video_utils.dart';
-import 'quill_icon_button.dart';
 
 class ImageButton extends StatelessWidget {
   const ImageButton({
@@ -19,6 +19,8 @@ class ImageButton extends StatelessWidget {
     this.filePickImpl,
     this.webImagePickImpl,
     this.mediaPickSettingSelector,
+    this.iconTheme,
+    this.dialogTheme,
     Key? key,
   }) : super(key: key);
 
@@ -37,16 +39,24 @@ class ImageButton extends StatelessWidget {
 
   final MediaPickSettingSelector? mediaPickSettingSelector;
 
+  final QuillIconTheme? iconTheme;
+
+  final QuillDialogTheme? dialogTheme;
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
 
+    final iconColor = iconTheme?.iconUnselectedColor ?? theme.iconTheme.color;
+    final iconFillColor =
+        iconTheme?.iconUnselectedFillColor ?? (fillColor ?? theme.canvasColor);
+
     return QuillIconButton(
-      icon: Icon(icon, size: iconSize, color: theme.iconTheme.color),
+      icon: Icon(icon, size: iconSize, color: iconColor),
       highlightElevation: 0,
       hoverElevation: 0,
       size: iconSize * 1.77,
-      fillColor: fillColor ?? theme.canvasColor,
+      fillColor: iconFillColor,
       onPressed: () => _onPressedHandler(context),
     );
   }
@@ -80,7 +90,7 @@ class ImageButton extends StatelessWidget {
   void _typeLink(BuildContext context) {
     showDialog<String>(
       context: context,
-      builder: (_) => const LinkDialog(),
+      builder: (_) => LinkDialog(dialogTheme: dialogTheme),
     ).then(_linkSubmitted);
   }
 

lib/src/widgets/toolbar/image_video_utils.dart

@@ -5,7 +5,7 @@ import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
 import '../../models/documents/nodes/embed.dart';
-import '../../utils/media_pick_setting.dart';
+import '../../translations/toolbar.i18n.dart';
 import '../controller.dart';
 import '../toolbar.dart';
 
@@ -26,7 +26,7 @@ class ImageVideoUtils {
                   Icons.collections,
                   color: Colors.orangeAccent,
                 ),
-                label: const Text('Gallery'),
+                label: Text('Gallery'.i18n),
                 onPressed: () => Navigator.pop(ctx, MediaPickSetting.Gallery),
               ),
               TextButton.icon(
@@ -34,7 +34,7 @@ class ImageVideoUtils {
                   Icons.link,
                   color: Colors.cyanAccent,
                 ),
-                label: const Text('Link'),
+                label: Text('Link'.i18n),
                 onPressed: () => Navigator.pop(ctx, MediaPickSetting.Link),
               )
             ],

lib/src/widgets/toolbar/indent_button.dart

@@ -1,7 +1,6 @@
 import 'package:flutter/material.dart';
 
 import '../../../flutter_quill.dart';
-import 'quill_icon_button.dart';
 
 class IndentButton extends StatefulWidget {
   const IndentButton({
@@ -9,6 +8,7 @@ class IndentButton extends StatefulWidget {
     required this.controller,
     required this.isIncrease,
     this.iconSize = kDefaultIconSize,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -17,6 +17,8 @@ class IndentButton extends StatefulWidget {
   final QuillController controller;
   final bool isIncrease;
 
+  final QuillIconTheme? iconTheme;
+
   @override
   _IndentButtonState createState() => _IndentButtonState();
 }
@@ -25,14 +27,17 @@ class _IndentButtonState extends State<IndentButton> {
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
-    final iconColor = theme.iconTheme.color;
+
-    final fillColor = theme.canvasColor;
+    final iconColor =
+        widget.iconTheme?.iconUnselectedColor ?? theme.iconTheme.color;
+    final iconFillColor =
+        widget.iconTheme?.iconUnselectedFillColor ?? theme.canvasColor;
     return QuillIconButton(
       highlightElevation: 0,
       hoverElevation: 0,
       size: widget.iconSize * 1.77,
       icon: Icon(widget.icon, size: widget.iconSize, color: iconColor),
-      fillColor: fillColor,
+      fillColor: iconFillColor,
       onPressed: () {
         final indent = widget.controller
             .getSelectionStyle()

lib/src/widgets/toolbar/insert_embed_button.dart

@@ -1,9 +1,9 @@
 import 'package:flutter/material.dart';
 
 import '../../models/documents/nodes/embed.dart';
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../toolbar.dart';
-import 'quill_icon_button.dart';
 
 class InsertEmbedButton extends StatelessWidget {
   const InsertEmbedButton({
@@ -11,6 +11,7 @@ class InsertEmbedButton extends StatelessWidget {
     required this.icon,
     this.iconSize = kDefaultIconSize,
     this.fillColor,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -18,9 +19,16 @@ class InsertEmbedButton extends StatelessWidget {
   final IconData icon;
   final double iconSize;
   final Color? fillColor;
+  final QuillIconTheme? iconTheme;
 
   @override
   Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+
+    final iconColor = iconTheme?.iconUnselectedColor ?? theme.iconTheme.color;
+    final iconFillColor =
+        iconTheme?.iconUnselectedFillColor ?? (fillColor ?? theme.canvasColor);
+
     return QuillIconButton(
       highlightElevation: 0,
       hoverElevation: 0,
@@ -28,9 +36,9 @@ class InsertEmbedButton extends StatelessWidget {
       icon: Icon(
         icon,
         size: iconSize,
-        color: Theme.of(context).iconTheme.color,
+        color: iconColor,
       ),
-      fillColor: fillColor ?? Theme.of(context).canvasColor,
+      fillColor: iconFillColor,
       onPressed: () {
         final index = controller.selection.baseOffset;
         final length = controller.selection.extentOffset - index;

lib/src/widgets/toolbar/link_style_button.dart

@@ -1,22 +1,28 @@
 import 'package:flutter/material.dart';
 
 import '../../models/documents/attribute.dart';
+import '../../models/themes/quill_dialog_theme.dart';
+import '../../models/themes/quill_icon_theme.dart';
+import '../../translations/toolbar.i18n.dart';
 import '../controller.dart';
 import '../link_dialog.dart';
 import '../toolbar.dart';
-import 'quill_icon_button.dart';
 
 class LinkStyleButton extends StatefulWidget {
   const LinkStyleButton({
     required this.controller,
     this.iconSize = kDefaultIconSize,
     this.icon,
+    this.iconTheme,
+    this.dialogTheme,
     Key? key,
   }) : super(key: key);
 
   final QuillController controller;
   final IconData? icon;
   final double iconSize;
+  final QuillIconTheme? iconTheme;
+  final QuillDialogTheme? dialogTheme;
 
   @override
   _LinkStyleButtonState createState() => _LinkStyleButtonState();
@@ -48,22 +54,44 @@ class _LinkStyleButtonState extends State<LinkStyleButton> {
     widget.controller.removeListener(_didChangeSelection);
   }
 
+  final GlobalKey _toolTipKey = GlobalKey();
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
     final isEnabled = !widget.controller.selection.isCollapsed;
     final pressedHandler = isEnabled ? () => _openLinkDialog(context) : null;
-    return QuillIconButton(
+    return GestureDetector(
-      highlightElevation: 0,
+      onTap: () async {
-      hoverElevation: 0,
+        final dynamic tooltip = _toolTipKey.currentState;
-      size: widget.iconSize * kIconButtonFactor,
+        tooltip.ensureTooltipVisible();
-      icon: Icon(
+        Future.delayed(
-        widget.icon ?? Icons.link,
+          const Duration(
-        size: widget.iconSize,
+            seconds: 3,
-        color: isEnabled ? theme.iconTheme.color : theme.disabledColor,
+          ),
+          tooltip.deactivate,
+        );
+      },
+      child: Tooltip(
+        key: _toolTipKey,
+        message: 'Please first select some text to transform into a link.'.i18n,
+        child: QuillIconButton(
+          highlightElevation: 0,
+          hoverElevation: 0,
+          size: widget.iconSize * kIconButtonFactor,
+          icon: Icon(
+            widget.icon ?? Icons.link,
+            size: widget.iconSize,
+            color: isEnabled
+                ? (widget.iconTheme?.iconUnselectedColor ??
+                    theme.iconTheme.color)
+                : (widget.iconTheme?.disabledIconColor ?? theme.disabledColor),
+          ),
+          fillColor:
+              widget.iconTheme?.iconUnselectedFillColor ?? theme.canvasColor,
+          onPressed: pressedHandler,
+        ),
       ),
-      fillColor: Theme.of(context).canvasColor,
-      onPressed: pressedHandler,
     );
   }
 
@@ -71,7 +99,7 @@ class _LinkStyleButtonState extends State<LinkStyleButton> {
     showDialog<String>(
       context: context,
       builder: (ctx) {
-        return const LinkDialog();
+        return LinkDialog(dialogTheme: widget.dialogTheme);
       },
     ).then(_linkSubmitted);
   }

lib/src/widgets/toolbar/select_alignment_button.dart

@@ -0,0 +1,154 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+import '../../models/documents/attribute.dart';
+import '../../models/documents/style.dart';
+import '../../models/themes/quill_icon_theme.dart';
+import '../controller.dart';
+import '../toolbar.dart';
+
+class SelectAlignmentButton extends StatefulWidget {
+  const SelectAlignmentButton({
+    required this.controller,
+    this.iconSize = kDefaultIconSize,
+    this.iconTheme,
+    this.showLeftAlignment,
+    this.showCenterAlignment,
+    this.showRightAlignment,
+    this.showJustifyAlignment,
+    Key? key,
+  }) : super(key: key);
+
+  final QuillController controller;
+  final double iconSize;
+
+  final QuillIconTheme? iconTheme;
+  final bool? showLeftAlignment;
+  final bool? showCenterAlignment;
+  final bool? showRightAlignment;
+  final bool? showJustifyAlignment;
+
+  @override
+  _SelectAlignmentButtonState createState() => _SelectAlignmentButtonState();
+}
+
+class _SelectAlignmentButtonState extends State<SelectAlignmentButton> {
+  Attribute? _value;
+
+  Style get _selectionStyle => widget.controller.getSelectionStyle();
+
+  @override
+  void initState() {
+    super.initState();
+    setState(() {
+      _value = _selectionStyle.attributes[Attribute.align.key] ??
+          Attribute.leftAlignment;
+    });
+    widget.controller.addListener(_didChangeEditingValue);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final _valueToText = <Attribute, String>{
+      if (widget.showLeftAlignment!)
+        Attribute.leftAlignment: Attribute.leftAlignment.value!,
+      if (widget.showCenterAlignment!)
+        Attribute.centerAlignment: Attribute.centerAlignment.value!,
+      if (widget.showRightAlignment!)
+        Attribute.rightAlignment: Attribute.rightAlignment.value!,
+      if (widget.showJustifyAlignment!)
+        Attribute.justifyAlignment: Attribute.justifyAlignment.value!,
+    };
+
+    final _valueAttribute = <Attribute>[
+      if (widget.showLeftAlignment!) Attribute.leftAlignment,
+      if (widget.showCenterAlignment!) Attribute.centerAlignment,
+      if (widget.showRightAlignment!) Attribute.rightAlignment,
+      if (widget.showJustifyAlignment!) Attribute.justifyAlignment
+    ];
+    final _valueString = <String>[
+      if (widget.showLeftAlignment!) Attribute.leftAlignment.value!,
+      if (widget.showCenterAlignment!) Attribute.centerAlignment.value!,
+      if (widget.showRightAlignment!) Attribute.rightAlignment.value!,
+      if (widget.showJustifyAlignment!) Attribute.justifyAlignment.value!,
+    ];
+
+    final theme = Theme.of(context);
+
+    final buttonCount = ((widget.showLeftAlignment!) ? 1 : 0) +
+        ((widget.showCenterAlignment!) ? 1 : 0) +
+        ((widget.showRightAlignment!) ? 1 : 0) +
+        ((widget.showJustifyAlignment!) ? 1 : 0);
+
+    return Row(
+      mainAxisSize: MainAxisSize.min,
+      children: List.generate(buttonCount, (index) {
+        return Padding(
+          padding: EdgeInsets.symmetric(horizontal: !kIsWeb ? 1.0 : 5.0),
+          child: ConstrainedBox(
+            constraints: BoxConstraints.tightFor(
+              width: widget.iconSize * kIconButtonFactor,
+              height: widget.iconSize * kIconButtonFactor,
+            ),
+            child: RawMaterialButton(
+              hoverElevation: 0,
+              highlightElevation: 0,
+              elevation: 0,
+              visualDensity: VisualDensity.compact,
+              shape: RoundedRectangleBorder(
+                  borderRadius: BorderRadius.circular(2)),
+              fillColor: _valueToText[_value] == _valueString[index]
+                  ? (widget.iconTheme?.iconSelectedFillColor ??
+                      theme.toggleableActiveColor)
+                  : (widget.iconTheme?.iconUnselectedFillColor ??
+                      theme.canvasColor),
+              onPressed: () => _valueAttribute[index] == Attribute.leftAlignment
+                  ? widget.controller
+                      .formatSelection(Attribute.clone(Attribute.align, null))
+                  : widget.controller.formatSelection(_valueAttribute[index]),
+              child: Icon(
+                _valueString[index] == Attribute.leftAlignment.value
+                    ? Icons.format_align_left
+                    : _valueString[index] == Attribute.centerAlignment.value
+                        ? Icons.format_align_center
+                        : _valueString[index] == Attribute.rightAlignment.value
+                            ? Icons.format_align_right
+                            : Icons.format_align_justify,
+                size: widget.iconSize,
+                color: _valueToText[_value] == _valueString[index]
+                    ? (widget.iconTheme?.iconSelectedColor ??
+                        theme.primaryIconTheme.color)
+                    : (widget.iconTheme?.iconUnselectedColor ??
+                        theme.iconTheme.color),
+              ),
+            ),
+          ),
+        );
+      }),
+    );
+  }
+
+  void _didChangeEditingValue() {
+    setState(() {
+      _value = _selectionStyle.attributes[Attribute.align.key] ??
+          Attribute.leftAlignment;
+    });
+  }
+
+  @override
+  void didUpdateWidget(covariant SelectAlignmentButton oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.controller != widget.controller) {
+      oldWidget.controller.removeListener(_didChangeEditingValue);
+      widget.controller.addListener(_didChangeEditingValue);
+      _value = _selectionStyle.attributes[Attribute.align.key] ??
+          Attribute.leftAlignment;
+    }
+  }
+
+  @override
+  void dispose() {
+    widget.controller.removeListener(_didChangeEditingValue);
+    super.dispose();
+  }
+}

lib/src/widgets/toolbar/select_header_style_button.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 
 import '../../models/documents/attribute.dart';
 import '../../models/documents/style.dart';
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../toolbar.dart';
 
@@ -10,12 +11,15 @@ class SelectHeaderStyleButton extends StatefulWidget {
   const SelectHeaderStyleButton({
     required this.controller,
     this.iconSize = kDefaultIconSize,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
   final QuillController controller;
   final double iconSize;
 
+  final QuillIconTheme? iconTheme;
+
   @override
   _SelectHeaderStyleButtonState createState() =>
       _SelectHeaderStyleButtonState();
@@ -63,7 +67,7 @@ class _SelectHeaderStyleButtonState extends State<SelectHeaderStyleButton> {
       mainAxisSize: MainAxisSize.min,
       children: List.generate(4, (index) {
         return Padding(
-          padding: const EdgeInsets.symmetric(horizontal: !kIsWeb ? 1.0 : 5.0),
+          padding: EdgeInsets.symmetric(horizontal: !kIsWeb ? 1.0 : 5.0),
           child: ConstrainedBox(
             constraints: BoxConstraints.tightFor(
               width: widget.iconSize * kIconButtonFactor,
@@ -77,16 +81,20 @@ class _SelectHeaderStyleButtonState extends State<SelectHeaderStyleButton> {
               shape: RoundedRectangleBorder(
                   borderRadius: BorderRadius.circular(2)),
               fillColor: _valueToText[_value] == _valueString[index]
-                  ? theme.toggleableActiveColor
+                  ? (widget.iconTheme?.iconSelectedFillColor ??
-                  : theme.canvasColor,
+                      theme.toggleableActiveColor)
+                  : (widget.iconTheme?.iconUnselectedFillColor ??
+                      theme.canvasColor),
               onPressed: () =>
                   widget.controller.formatSelection(_valueAttribute[index]),
               child: Text(
                 _valueString[index],
                 style: style.copyWith(
                   color: _valueToText[_value] == _valueString[index]
-                      ? theme.primaryIconTheme.color
+                      ? (widget.iconTheme?.iconSelectedColor ??
-                      : theme.iconTheme.color,
+                          theme.primaryIconTheme.color)
+                      : (widget.iconTheme?.iconUnselectedColor ??
+                          theme.iconTheme.color),
                 ),
               ),
             ),

lib/src/widgets/toolbar/toggle_check_list_button.dart

@@ -2,9 +2,9 @@ import 'package:flutter/material.dart';
 
 import '../../models/documents/attribute.dart';
 import '../../models/documents/style.dart';
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../toolbar.dart';
-import 'toggle_style_button.dart';
 
 class ToggleCheckListButton extends StatefulWidget {
   const ToggleCheckListButton({
@@ -14,6 +14,7 @@ class ToggleCheckListButton extends StatefulWidget {
     this.iconSize = kDefaultIconSize,
     this.fillColor,
     this.childBuilder = defaultToggleStyleButtonBuilder,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -28,6 +29,8 @@ class ToggleCheckListButton extends StatefulWidget {
 
   final Attribute attribute;
 
+  final QuillIconTheme? iconTheme;
+
   @override
   _ToggleCheckListButtonState createState() => _ToggleCheckListButtonState();
 }
@@ -81,18 +84,15 @@ class _ToggleCheckListButtonState extends State<ToggleCheckListButton> {
 
   @override
   Widget build(BuildContext context) {
-    final isInCodeBlock =
-        _selectionStyle.attributes.containsKey(Attribute.codeBlock.key);
-    final isEnabled =
-        !isInCodeBlock || Attribute.list.key == Attribute.codeBlock.key;
     return widget.childBuilder(
       context,
       Attribute.unchecked,
       widget.icon,
       widget.fillColor,
       _isToggled,
-      isEnabled ? _toggleAttribute : null,
+      _toggleAttribute,
       widget.iconSize,
+      widget.iconTheme,
     );
   }
 

lib/src/widgets/toolbar/toggle_style_button.dart

@@ -2,9 +2,9 @@ import 'package:flutter/material.dart';
 
 import '../../models/documents/attribute.dart';
 import '../../models/documents/style.dart';
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../toolbar.dart';
-import 'quill_icon_button.dart';
 
 typedef ToggleStyleButtonBuilder = Widget Function(
   BuildContext context,
@@ -14,6 +14,7 @@ typedef ToggleStyleButtonBuilder = Widget Function(
   bool? isToggled,
   VoidCallback? onPressed, [
   double iconSize,
+  QuillIconTheme? iconTheme,
 ]);
 
 class ToggleStyleButton extends StatefulWidget {
@@ -24,6 +25,7 @@ class ToggleStyleButton extends StatefulWidget {
     this.iconSize = kDefaultIconSize,
     this.fillColor,
     this.childBuilder = defaultToggleStyleButtonBuilder,
+    this.iconTheme,
     Key? key,
   }) : super(key: key);
 
@@ -38,6 +40,9 @@ class ToggleStyleButton extends StatefulWidget {
 
   final ToggleStyleButtonBuilder childBuilder;
 
+  ///Specify an icon theme for the icons in the toolbar
+  final QuillIconTheme? iconTheme;
+
   @override
   _ToggleStyleButtonState createState() => _ToggleStyleButtonState();
 }
@@ -56,18 +61,15 @@ class _ToggleStyleButtonState extends State<ToggleStyleButton> {
 
   @override
   Widget build(BuildContext context) {
-    final isInCodeBlock =
-        _selectionStyle.attributes.containsKey(Attribute.codeBlock.key);
-    final isEnabled =
-        !isInCodeBlock || widget.attribute.key == Attribute.codeBlock.key;
     return widget.childBuilder(
       context,
       widget.attribute,
       widget.icon,
       widget.fillColor,
       _isToggled,
-      isEnabled ? _toggleAttribute : null,
+      _toggleAttribute,
       widget.iconSize,
+      widget.iconTheme,
     );
   }
 
@@ -117,17 +119,25 @@ Widget defaultToggleStyleButtonBuilder(
   bool? isToggled,
   VoidCallback? onPressed, [
   double iconSize = kDefaultIconSize,
+  QuillIconTheme? iconTheme,
 ]) {
   final theme = Theme.of(context);
   final isEnabled = onPressed != null;
   final iconColor = isEnabled
       ? isToggled == true
-          ? theme.primaryIconTheme.color
+          ? (iconTheme?.iconSelectedColor ??
-          : theme.iconTheme.color
+              theme
-      : theme.disabledColor;
+                  .primaryIconTheme.color) //You can specify your own icon color
-  final fill = isToggled == true
+          : (iconTheme?.iconUnselectedColor ?? theme.iconTheme.color)
-      ? theme.toggleableActiveColor
+      : (iconTheme?.disabledIconColor ?? theme.disabledColor);
-      : fillColor ?? theme.canvasColor;
+  final fill = isEnabled
+      ? isToggled == true
+          ? (iconTheme?.iconSelectedFillColor ??
+              theme.toggleableActiveColor) //Selected icon fill color
+          : (iconTheme?.iconUnselectedFillColor ??
+              theme.canvasColor) //Unselected icon fill color :
+      : (iconTheme?.disabledIconFillColor ??
+          (fillColor ?? theme.canvasColor)); //Disabled icon fill color
   return QuillIconButton(
     highlightElevation: 0,
     hoverElevation: 0,

lib/src/widgets/toolbar/video_button.dart

@@ -2,12 +2,12 @@ import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
 import '../../models/documents/nodes/embed.dart';
-import '../../utils/media_pick_setting.dart';
+import '../../models/themes/quill_dialog_theme.dart';
+import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
 import '../link_dialog.dart';
 import '../toolbar.dart';
 import 'image_video_utils.dart';
-import 'quill_icon_button.dart';
 
 class VideoButton extends StatelessWidget {
   const VideoButton({
@@ -19,6 +19,8 @@ class VideoButton extends StatelessWidget {
     this.filePickImpl,
     this.webVideoPickImpl,
     this.mediaPickSettingSelector,
+    this.iconTheme,
+    this.dialogTheme,
     Key? key,
   }) : super(key: key);
 
@@ -37,16 +39,24 @@ class VideoButton extends StatelessWidget {
 
   final MediaPickSettingSelector? mediaPickSettingSelector;
 
+  final QuillIconTheme? iconTheme;
+
+  final QuillDialogTheme? dialogTheme;
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
 
+    final iconColor = iconTheme?.iconUnselectedColor ?? theme.iconTheme.color;
+    final iconFillColor =
+        iconTheme?.iconUnselectedFillColor ?? (fillColor ?? theme.canvasColor);
+
     return QuillIconButton(
-      icon: Icon(icon, size: iconSize, color: theme.iconTheme.color),
+      icon: Icon(icon, size: iconSize, color: iconColor),
       highlightElevation: 0,
       hoverElevation: 0,
       size: iconSize * 1.77,
-      fillColor: fillColor ?? theme.canvasColor,
+      fillColor: iconFillColor,
       onPressed: () => _onPressedHandler(context),
     );
   }
@@ -80,7 +90,7 @@ class VideoButton extends StatelessWidget {
   void _typeLink(BuildContext context) {
     showDialog<String>(
       context: context,
-      builder: (_) => const LinkDialog(),
+      builder: (_) => LinkDialog(dialogTheme: dialogTheme),
     ).then(_linkSubmitted);
   }
 

lib/src/widgets/video_app.dart

@@ -35,13 +35,16 @@ class _VideoAppState extends State<VideoApp> {
         // Ensure the first frame is shown after the video is initialized,
         // even before the play button has been pressed.
         setState(() {});
+      }).catchError((error) {
+        setState(() {});
       });
+    ;
   }
 
   @override
   Widget build(BuildContext context) {
     final defaultStyles = DefaultStyles.getInstance(context);
-    if (!_controller.value.isInitialized || _controller.value.hasError) {
+    if (_controller.value.hasError) {
       if (widget.readOnly) {
         return RichText(
           text: TextSpan(
@@ -54,6 +57,12 @@ class _VideoAppState extends State<VideoApp> {
 
       return RichText(
           text: TextSpan(text: widget.videoUrl, style: defaultStyles.link));
+    } else if (!_controller.value.isInitialized) {
+      return VideoProgressIndicator(
+        _controller,
+        allowScrubbing: true,
+        colors: const VideoProgressColors(playedColor: Colors.blue),
+      );
     }
 
     return Container(

lib/src/widgets/youtube_video_app.dart

@@ -2,6 +2,7 @@ import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:youtube_player_flutter/youtube_player_flutter.dart';
+
 import '../../flutter_quill.dart';
 
 class YoutubeVideoApp extends StatefulWidget {

lib/widgets/keyboard_listener.dart

@@ -1,3 +0,0 @@
-/// TODO: Remove this file in the next breaking release, because implementation
-/// files should be located in the src folder, https://bit.ly/3fA23Yz.
-export '../src/widgets/keyboard_listener.dart';

lib/widgets/raw_editor/raw_editor_state_keyboard_mixin.dart

@@ -1,3 +0,0 @@
-/// TODO: Remove this file in the next breaking release, because implementation
-/// files should be located in the src folder, https://bit.ly/3fA23Yz.
-export '../../src/widgets/raw_editor/raw_editor_state_keyboard_mixin.dart';

lib/widgets/simple_viewer.dart

@@ -1,3 +0,0 @@
-/// TODO: Remove this file in the next breaking release, because implementation
-/// files should be located in the src folder, https://bit.ly/3fA23Yz.
-export '../src/widgets/simple_viewer.dart';

pubspec.yaml

@@ -1,22 +1,22 @@
 name: flutter_quill
 description: A rich text editor supporting mobile and web (Demo App @ bulletjournal.us)
-version: 1.9.4
+version: 3.0.4
 #author: bulletjournal
 homepage: https://bulletjournal.us/home/index.html
 repository: https://github.com/singerdmx/flutter-quill
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
-  flutter: ">=1.17.0"
+  flutter: ">=2.5.3"
 
 dependencies:
   flutter:
     sdk: flutter
   collection: ^1.15.0
-  flutter_colorpicker: ^0.4.0
+  flutter_colorpicker: ^1.0.3
   flutter_keyboard_visibility: ^5.0.0
   image_picker: ^0.8.2
-  photo_view: ^0.12.0
+  photo_view: ^0.13.0
   quiver: ^3.0.0
   string_validator: ^0.3.0
   tuple: ^2.0.0
@@ -30,6 +30,7 @@ dependencies:
   characters: ^1.1.0
   youtube_player_flutter: ^8.0.0
   diff_match_patch: ^0.4.1
+  i18n_extension: ^4.1.3
 
 dev_dependencies:
   flutter_test: