Merge branch 'singerdmx:master' into master

CHANGELOG.md

@@ -4,6 +4,34 @@
 
 All notable changes to this project will be documented in this file.
 
+## 9.5.6
+
+* fix: common link is detected as a video link by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1978
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.5...v9.5.6
+
+## 9.5.5
+
+* fix: context menu behavior in mouse, desktop env by @n7484443 in https://github.com/singerdmx/flutter-quill/pull/1976
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.4...v9.5.5
+
+## 9.5.4
+
+* Feat: Line height support by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1972
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.3...v9.5.4
+
+## 9.5.3
+
+* Perf: Performance optimization by @Alspb in https://github.com/singerdmx/flutter-quill/pull/1964
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.2...v9.5.3
+
 ## 9.5.2
 
 * Fix style settings by @AtlasAutocode in https://github.com/singerdmx/flutter-quill/pull/1962

dart_quill_delta/CHANGELOG.md

@@ -4,6 +4,34 @@
 
 All notable changes to this project will be documented in this file.
 
+## 9.5.6
+
+* fix: common link is detected as a video link by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1978
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.5...v9.5.6
+
+## 9.5.5
+
+* fix: context menu behavior in mouse, desktop env by @n7484443 in https://github.com/singerdmx/flutter-quill/pull/1976
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.4...v9.5.5
+
+## 9.5.4
+
+* Feat: Line height support by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1972
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.3...v9.5.4
+
+## 9.5.3
+
+* Perf: Performance optimization by @Alspb in https://github.com/singerdmx/flutter-quill/pull/1964
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.2...v9.5.3
+
 ## 9.5.2
 
 * Fix style settings by @AtlasAutocode in https://github.com/singerdmx/flutter-quill/pull/1962

dart_quill_delta/pubspec.yaml

@@ -1,6 +1,6 @@
 name: dart_quill_delta
 description: A port of quill-js-delta from typescript to dart
-version: 9.5.2
+version: 9.5.6
 homepage: https://github.com/singerdmx/flutter-quill/tree/master/dart_quill_delta/
 repository: https://github.com/singerdmx/flutter-quill/tree/master/dart_quill_delta/
 issue_tracker: https://github.com/singerdmx/flutter-quill/issues/

doc/custom_toolbar.md

@@ -73,6 +73,14 @@ QuillToolbar.simple(
           isBackground: true,
         ),
         const VerticalDivider(),
+        // This is an implementation that only is used on
+        // flutter_quill and it's not originally 
+        // implemented in Quill JS API, so it could cause conflicts
+        // with the original Quill Delta format
+        QuillToolbarSelectLineHeightStyleDropdownButton(
+          controller: globalController,
+        ),
+        const VerticalDivider(),
         QuillToolbarSelectHeaderStyleButton(
           controller: controller,
         ),

example/lib/screens/quill/my_quill_toolbar.dart

@@ -164,6 +164,10 @@ class MyQuillToolbar extends StatelessWidget {
                     controller: controller,
                   ),
                   const VerticalDivider(),
+                  QuillToolbarSelectLineHeightStyleDropdownButton(
+                    controller: controller,
+                  ),
+                  const VerticalDivider(),
                   QuillToolbarToggleCheckListButton(
                     controller: controller,
                   ),

flutter_quill_extensions/CHANGELOG.md

@@ -4,6 +4,34 @@
 
 All notable changes to this project will be documented in this file.
 
+## 9.5.6
+
+* fix: common link is detected as a video link by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1978
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.5...v9.5.6
+
+## 9.5.5
+
+* fix: context menu behavior in mouse, desktop env by @n7484443 in https://github.com/singerdmx/flutter-quill/pull/1976
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.4...v9.5.5
+
+## 9.5.4
+
+* Feat: Line height support by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1972
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.3...v9.5.4
+
+## 9.5.3
+
+* Perf: Performance optimization by @Alspb in https://github.com/singerdmx/flutter-quill/pull/1964
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.2...v9.5.3
+
 ## 9.5.2
 
 * Fix style settings by @AtlasAutocode in https://github.com/singerdmx/flutter-quill/pull/1962

flutter_quill_extensions/pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_quill_extensions
 description: Embed extensions for flutter_quill including image, video, formula and etc.
-version: 9.5.2
+version: 9.5.6
 homepage: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_extensions/
 repository: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_extensions/
 issue_tracker: https://github.com/singerdmx/flutter-quill/issues/

flutter_quill_test/CHANGELOG.md

@@ -4,6 +4,34 @@
 
 All notable changes to this project will be documented in this file.
 
+## 9.5.6
+
+* fix: common link is detected as a video link by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1978
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.5...v9.5.6
+
+## 9.5.5
+
+* fix: context menu behavior in mouse, desktop env by @n7484443 in https://github.com/singerdmx/flutter-quill/pull/1976
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.4...v9.5.5
+
+## 9.5.4
+
+* Feat: Line height support by @CatHood0 in https://github.com/singerdmx/flutter-quill/pull/1972
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.3...v9.5.4
+
+## 9.5.3
+
+* Perf: Performance optimization by @Alspb in https://github.com/singerdmx/flutter-quill/pull/1964
+
+
+**Full Changelog**: https://github.com/singerdmx/flutter-quill/compare/v9.5.2...v9.5.3
+
 ## 9.5.2
 
 * Fix style settings by @AtlasAutocode in https://github.com/singerdmx/flutter-quill/pull/1962

flutter_quill_test/pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_quill_test
 description: Test utilities for flutter_quill which includes methods to simplify interacting with the editor in test cases.
-version: 9.5.2
+version: 9.5.6
 homepage: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_test/
 repository: https://github.com/singerdmx/flutter-quill/tree/master/flutter_quill_test/
 issue_tracker: https://github.com/singerdmx/flutter-quill/issues/

lib/src/l10n/generated/quill_localizations.dart

@@ -577,6 +577,12 @@ abstract class FlutterQuillLocalizations {
   /// **'Color'**
   String get color;
 
+  /// No description provided for @lineheight.
+  ///
+  /// In en, this message translates to:
+  /// **'Line height'**
+  String get lineheight;
+
   /// No description provided for @findText.
   ///
   /// In en, this message translates to:

lib/src/l10n/generated/quill_localizations_ar.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsAr extends FlutterQuillLocalizations {
   @override
   String get color => 'اللون';
 
+  @override
+  String get lineheight => 'ارتفاع خط';
+
   @override
   String get findText => 'بحث عن نص';
 

lib/src/l10n/generated/quill_localizations_bg.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsBg extends FlutterQuillLocalizations {
   @override
   String get color => 'Цвят';
 
+  @override
+  String get lineheight => 'височина на линията';
+
   @override
   String get findText => 'Намери текст';
 

lib/src/l10n/generated/quill_localizations_bn.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsBn extends FlutterQuillLocalizations {
   @override
   String get color => 'কালার';
 
+  @override
+  String get lineheight => 'লাইনের উচ্চতা';
+
   @override
   String get findText => 'পাঠ্য খুঁজুন';
 

lib/src/l10n/generated/quill_localizations_cs.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsCs extends FlutterQuillLocalizations {
   @override
   String get color => 'Barva';
 
+  @override
+  String get lineheight => 'Výška čáry';
+
   @override
   String get findText => 'Najít text';
 

lib/src/l10n/generated/quill_localizations_da.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsDa extends FlutterQuillLocalizations {
   @override
   String get color => 'Farve';
 
+  @override
+  String get lineheight => 'altezza della linea';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_de.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsDe extends FlutterQuillLocalizations {
   @override
   String get color => 'Farbe';
 
+  @override
+  String get lineheight => 'Zeilenhöhe';
+
   @override
   String get findText => 'Text suchen';
 

lib/src/l10n/generated/quill_localizations_en.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsEn extends FlutterQuillLocalizations {
   @override
   String get color => 'Color';
 
+  @override
+  String get lineheight => 'Line height';
+
   @override
   String get findText => 'Find text';
 
@@ -482,6 +485,9 @@ class FlutterQuillLocalizationsEnUs extends FlutterQuillLocalizationsEn {
   @override
   String get color => 'Color';
 
+  @override
+  String get lineheight => 'Line height';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_es.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsEs extends FlutterQuillLocalizations {
   @override
   String get color => 'Color';
 
+  @override
+  String get lineheight => 'Interlineado';
+
   @override
   String get findText => 'Buscar texto';
 

lib/src/l10n/generated/quill_localizations_fa.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsFa extends FlutterQuillLocalizations {
   @override
   String get color => 'رنگ';
 
+  @override
+  String get lineheight => 'ارتفاع خط';
+
   @override
   String get findText => 'جستجوی متن';
 

lib/src/l10n/generated/quill_localizations_fr.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsFr extends FlutterQuillLocalizations {
   @override
   String get color => 'Couleur';
 
+  @override
+  String get lineheight => 'Hauteur de la ligne';
+
   @override
   String get findText => 'Rechercher du texte';
 

lib/src/l10n/generated/quill_localizations_he.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsHe extends FlutterQuillLocalizations {
   @override
   String get color => 'צבע';
 
+  @override
+  String get lineheight => 'גובה קו';
+
   @override
   String get findText => 'מצא טקסט';
 

lib/src/l10n/generated/quill_localizations_hi.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsHi extends FlutterQuillLocalizations {
   @override
   String get color => 'रंग';
 
+  @override
+  String get lineheight => 'ऊंची लाईन';
+
   @override
   String get findText => 'मद को खोजें';
 

lib/src/l10n/generated/quill_localizations_id.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsId extends FlutterQuillLocalizations {
   @override
   String get color => 'Warna';
 
+  @override
+  String get lineheight => 'Tinggi garis';
+
   @override
   String get findText => 'Temukan Teks';
 

lib/src/l10n/generated/quill_localizations_it.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsIt extends FlutterQuillLocalizations {
   @override
   String get color => 'Colore';
 
+  @override
+  String get lineheight => 'Altezza della linea';
+
   @override
   String get findText => 'Trova testo';
 

lib/src/l10n/generated/quill_localizations_ja.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsJa extends FlutterQuillLocalizations {
   @override
   String get color => 'Color';
 
+  @override
+  String get lineheight => '行の高さ';
+
   @override
   String get findText => '検索テキスト';
 

lib/src/l10n/generated/quill_localizations_ko.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsKo extends FlutterQuillLocalizations {
   @override
   String get color => '색상';
 
+  @override
+  String get lineheight => '선 높이';
+
   @override
   String get findText => '찾기';
 

lib/src/l10n/generated/quill_localizations_ku.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsKu extends FlutterQuillLocalizations {
   @override
   String get color => 'ڕەنگ';
 
+  @override
+  String get lineheight => 'بەرزی هێڵ';
+
   @override
   String get findText => 'دۆزینەوەی نوسین';
 
@@ -504,6 +507,9 @@ class FlutterQuillLocalizationsKuCkb extends FlutterQuillLocalizationsKu {
   @override
   String get color => 'ڕەنگ';
 
+  @override
+  String get lineheight => 'بەرزی هێڵ';
+
   @override
   String get findText => 'دۆزینەوەی نوسین';
 

lib/src/l10n/generated/quill_localizations_ms.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsMs extends FlutterQuillLocalizations {
   @override
   String get color => 'Warna';
 
+  @override
+  String get lineheight => 'Ketinggian garisan';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_ne.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsNe extends FlutterQuillLocalizations {
   @override
   String get color => 'रङ';
 
+  @override
+  String get lineheight => 'रेखा-उचाइ';
+
   @override
   String get findText => 'टेक्स्ट फेला पार्नुहोस्';
 

lib/src/l10n/generated/quill_localizations_nl.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsNl extends FlutterQuillLocalizations {
   @override
   String get color => 'Kleur';
 
+  @override
+  String get lineheight => 'Lijnhoogte';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_no.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsNo extends FlutterQuillLocalizations {
   @override
   String get color => 'Farge';
 
+  @override
+  String get lineheight => 'Linjehøyde';
+
   @override
   String get findText => 'Finn tekst';
 

lib/src/l10n/generated/quill_localizations_pl.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsPl extends FlutterQuillLocalizations {
   @override
   String get color => 'Kolor';
 
+  @override
+  String get lineheight => 'Wysokość linii';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_pt.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsPt extends FlutterQuillLocalizations {
   @override
   String get color => 'Cor';
 
+  @override
+  String get lineheight => 'Altura da linha';
+
   @override
   String get findText => 'Find text';
 
@@ -482,6 +485,9 @@ class FlutterQuillLocalizationsPtBr extends FlutterQuillLocalizationsPt {
   @override
   String get color => 'Cor';
 
+  @override
+  String get lineheight => 'Altura da linha';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_ro.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsRo extends FlutterQuillLocalizations {
   @override
   String get color => 'Culoare';
 
+  @override
+  String get lineheight => 'Inaltimea liniei';
+
   @override
   String get findText => 'Găsește text';
 
@@ -506,6 +509,9 @@ class FlutterQuillLocalizationsRoRo extends FlutterQuillLocalizationsRo {
   @override
   String get color => 'Culoare';
 
+  @override
+  String get lineheight => 'Inaltimea liniei';
+
   @override
   String get findText => 'Găsește text';
 

lib/src/l10n/generated/quill_localizations_ru.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsRu extends FlutterQuillLocalizations {
   @override
   String get color => 'Цвет';
 
+  @override
+  String get lineheight => 'Высота линии';
+
   @override
   String get findText => 'Найти текст';
 

lib/src/l10n/generated/quill_localizations_sk.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsSk extends FlutterQuillLocalizations {
   @override
   String get color => 'Farba';
 
+  @override
+  String get lineheight => 'Výška riadku';
+
   @override
   String get findText => 'Nájsť text';
 

lib/src/l10n/generated/quill_localizations_sr.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsSr extends FlutterQuillLocalizations {
   @override
   String get color => 'Boja';
 
+  @override
+  String get lineheight => 'Visina linije';
+
   @override
   String get findText => 'Nađi tekst';
 

lib/src/l10n/generated/quill_localizations_sv.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsSv extends FlutterQuillLocalizations {
   @override
   String get color => 'Färg';
 
+  @override
+  String get lineheight => 'Radavstånd';
+
   @override
   String get findText => 'Hitta text';
 

lib/src/l10n/generated/quill_localizations_sw.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsSw extends FlutterQuillLocalizations {
   @override
   String get color => 'Rangi';
 
+  @override
+  String get lineheight => 'Urefu wa mstari';
+
   @override
   String get findText => 'Pata Maandishi';
 

lib/src/l10n/generated/quill_localizations_tk.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsTk extends FlutterQuillLocalizations {
   @override
   String get color => 'Reňk';
 
+  @override
+  String get lineheight => 'Çyzyk beýikligi';
+
   @override
   String get findText => 'Tekst tapyň';
 

lib/src/l10n/generated/quill_localizations_tr.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsTr extends FlutterQuillLocalizations {
   @override
   String get color => 'Renk';
 
+  @override
+  String get lineheight => 'Satır yüksekliği';
+
   @override
   String get findText => 'Find text';
 

lib/src/l10n/generated/quill_localizations_uk.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsUk extends FlutterQuillLocalizations {
   @override
   String get color => 'Колір';
 
+  @override
+  String get lineheight => 'Висота лінії';
+
   @override
   String get findText => 'Знайти текст';
 

lib/src/l10n/generated/quill_localizations_ur.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsUr extends FlutterQuillLocalizations {
   @override
   String get color => 'رنگ';
 
+  @override
+  String get lineheight => 'لکیر کی اونچائی';
+
   @override
   String get findText => 'متن تلاش کریں';
 

lib/src/l10n/generated/quill_localizations_vi.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsVi extends FlutterQuillLocalizations {
   @override
   String get color => 'Màu';
 
+  @override
+  String get lineheight => 'Chiều cao giữa các dòng';
+
   @override
   String get findText => 'Tìm văn bản';
 

lib/src/l10n/generated/quill_localizations_zh.dart

@@ -208,6 +208,9 @@ class FlutterQuillLocalizationsZh extends FlutterQuillLocalizations {
   @override
   String get color => '颜色';
 
+  @override
+  String get lineheight => '行高';
+
   @override
   String get findText => '搜索文本';
 
@@ -500,6 +503,9 @@ class FlutterQuillLocalizationsZhCn extends FlutterQuillLocalizationsZh {
   @override
   String get color => '颜色';
 
+  @override
+  String get lineheight => '行高';
+
   @override
   String get findText => '搜索文本';
 
@@ -745,6 +751,9 @@ class FlutterQuillLocalizationsZhHk extends FlutterQuillLocalizationsZh {
   @override
   String get color => '顏色';
 
+  @override
+  String get lineheight => '行高';
+
   @override
   String get findText => '搜尋文本';
 

lib/src/l10n/quill_ar.arb

@@ -60,6 +60,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "اللون",
+    "lineheight": "ارتفاع خط",
     "findText": "بحث عن نص",
     "moveToPreviousOccurrence": "الانتقال إلى الحدث السابق",
     "moveToNextOccurrence": "الانتقال إلى الحدث التالي",

lib/src/l10n/quill_bg.arb

@@ -60,6 +60,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Цвят",
+    "lineheight": "височина на линията",
     "findText": "Намери текст",
     "moveToPreviousOccurrence": "Премести към предишното съвпадение",
     "moveToNextOccurrence": "Премести към следващото съвпадение",

lib/src/l10n/quill_bn.arb

@@ -60,6 +60,7 @@
     "hex": "হেক্স",
     "material": "ম্যাটারিয়াল",
     "color": "কালার",
+    "lineheight": "লাইনের উচ্চতা",
     "findText": "পাঠ্য খুঁজুন",
     "moveToPreviousOccurrence": "পূর্ববর্তী ঘটনায় চলুন",
     "moveToNextOccurrence": "পরবর্তী ঘটনায় চলুন",

lib/src/l10n/quill_cs.arb

@@ -60,6 +60,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Barva",
+    "lineheight": "Výška čáry",
     "findText": "Najít text",
     "moveToPreviousOccurrence": "Přesunout na předchozí výskyt",
     "moveToNextOccurrence": "Přesunout na následující výskyt",

lib/src/l10n/quill_da.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Materiale",
     "color": "Farve",
+    "lineheight": "altezza della linea",
     "pleaseEnterAValidVideoURL": "Angiv en gyldig video-URL",
     "photo": "Foto",
     "image": "Billede",

lib/src/l10n/quill_de.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Farbe",
+    "lineheight": "Zeilenhöhe",
     "pleaseEnterAValidVideoURL": "Bitte geben Sie eine gültige Video-URL ein",
     "photo": "Foto",
     "image": "Bild",

lib/src/l10n/quill_en.arb

@@ -71,6 +71,7 @@
   "hex": "Hex",
   "material": "Material",
   "color": "Color",
+  "lineheight": "Line height",
   "findText": "Find text",
   "moveToPreviousOccurrence": "Move to previous occurrence",
   "moveToNextOccurrence": "Move to next occurrence",

lib/src/l10n/quill_en_US.arb

@@ -60,6 +60,7 @@
   "hex": "Hex",
   "material": "Material",
   "color": "Color",
+  "lineheight": "Line height",
   "findText": "Find text",
   "moveToPreviousOccurrence": "Move to previous occurrence",
   "moveToNextOccurrence": "Move to next occurrence",

lib/src/l10n/quill_es.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Color",
+    "lineheight": "Interlineado",
     "pleaseEnterAValidVideoURL": "Por favor, ingrese una URL de video válida",
     "photo": "Foto",
     "image": "Imagen",

lib/src/l10n/quill_fa.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "مواد",
     "color": "رنگ",
+    "lineheight": "ارتفاع خط",
     "savedUsingTheNetwork": "با استفاده از شبکه ذخیره شده است",
     "pleaseEnterTextForYourLink": "لطفاً متن لینک خود را وارد کنید (مثال: 'بیشتر بدانید')",
     "pleaseEnterTheLinkURL": "لطفاً URL لینک را وارد کنید (مثال: 'https://example.com')",

lib/src/l10n/quill_fr.arb

@@ -67,6 +67,7 @@
     "hex": "Hex",
     "material": "Matériel",
     "color": "Couleur",
+    "lineheight": "Hauteur de la ligne",
     "findText": "Rechercher du texte",
     "moveToPreviousOccurrence": "Aller à l'occurrence précédente",
     "moveToNextOccurrence": "Aller à l'occurrence suivante",

lib/src/l10n/quill_he.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "חומר",
     "color": "צבע",
+    "lineheight": "גובה קו",
     "savedUsingTheNetwork": "נשמר באמצעות הרשת",
     "pleaseEnterTextForYourLink": "אנא הזן טקסט לקישור שלך (לדוגמה, 'מידע נוסף')",
     "pleaseEnterTheLinkURL": "אנא הזן את כתובת ה-URL של הקישור (לדוגמה, 'https://example.com')",

lib/src/l10n/quill_hi.arb

@@ -69,6 +69,7 @@
     "hex": "हेक्स",
     "material": "सामग्री",
     "color": "रंग",
+    "lineheight": "ऊंची लाईन",
     "savedUsingTheNetwork": "नेटवर्क का उपयोग करके सहेजा गया",
     "pleaseEnterTextForYourLink": "कृपया अपने लिंक के लिए एक पाठ दर्ज करें (उदाहरण: 'और अधिक जानें')",
     "pleaseEnterTheLinkURL": "कृपया लिंक URL दर्ज करें (उदाहरण: 'https://example.com')",

lib/src/l10n/quill_id.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Warna",
+    "lineheight": "Tinggi garis",
     "savedUsingTheNetwork": "Tersimpan menggunakan jaringan",
     "pleaseEnterTextForYourLink": "Harap masukkan teks untuk tautan Anda (contoh: 'Pelajari lebih lanjut')",
     "pleaseEnterTheLinkURL": "Harap masukkan URL tautan (contoh: 'https://example.com')",

lib/src/l10n/quill_it.arb

@@ -60,6 +60,7 @@
     "hex": "Esadecimale",
     "material": "Materiale",
     "color": "Colore",
+    "lineheight": "Altezza della linea",
     "findText": "Trova testo",
     "moveToPreviousOccurrence": "Vai all'occorrenza precedente",
     "moveToNextOccurrence": "Vai all'occorrenza successiva",

lib/src/l10n/quill_ja.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Color",
+    "lineheight": "行の高さ",
     "pleaseEnterAValidVideoURL": "有効なビデオURLを入力してください",
     "photo": "写真",
     "image": "画像",

lib/src/l10n/quill_ko.arb

@@ -67,6 +67,7 @@
     "hex": "Hex 값",
     "material": "Material 색상",
     "color": "색상",
+    "lineheight": "선 높이",
     "findText": "찾기",
     "moveToPreviousOccurrence": "이전 위치로 이동",
     "moveToNextOccurrence": "다음 위치로 이동",

lib/src/l10n/quill_ku.arb

@@ -67,6 +67,7 @@
   "hex": "هێکس",
   "material": "بابەت",
   "color": "ڕەنگ",
+  "lineheight": "بەرزی هێڵ",
   "findText": "دۆزینەوەی نوسین",
   "moveToPreviousOccurrence": "بچۆ بۆ ڕووداوی پێشوو",
   "moveToNextOccurrence": "بڕۆ بۆ ڕووداوی داهاتوو",

lib/src/l10n/quill_ku_CKB.arb

@@ -67,6 +67,7 @@
   "hex": "هێکس",
   "material": "بابەت",
   "color": "ڕەنگ",
+  "lineheight": "بەرزی هێڵ",
   "findText": "دۆزینەوەی نوسین",
   "moveToPreviousOccurrence": "بچۆ بۆ ڕووداوی پێشوو",
   "moveToNextOccurrence": "بڕۆ بۆ ڕووداوی داهاتوو",

lib/src/l10n/quill_ms.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Bahan",
     "color": "Warna",
+    "lineheight": "Ketinggian garisan",
     "savedUsingTheNetwork": "Disimpan menggunakan rangkaian",
     "pleaseEnterTextForYourLink": "Sila masukkan teks untuk pautan anda (contoh, 'Ketahui lebih lanjut')",
     "pleaseEnterTheLinkURL": "Sila masukkan URL pautan (contoh, 'https://example.com')",

lib/src/l10n/quill_ne.arb

@@ -67,6 +67,7 @@
   "hex": "Hex",
   "material": "Material",
   "color": "रङ",
+  "lineheight": "रेखा-उचाइ",
   "findText": "टेक्स्ट फेला पार्नुहोस्",
   "moveToPreviousOccurrence": "अघिल्लो घटनामा जानुहोस्",
   "moveToNextOccurrence": "अर्को घटनामा सार्नुहोस्",

lib/src/l10n/quill_nl.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Materiaal",
     "color": "Kleur",
+    "lineheight": "Lijnhoogte",
     "savedUsingTheNetwork": "Opgeslagen via het netwerk",
     "pleaseEnterTextForYourLink": "Voer tekst in voor uw link (bijvoorbeeld 'Meer weten')",
     "pleaseEnterTheLinkURL": "Voer de URL van de link in (bijvoorbeeld 'https://example.com')",

lib/src/l10n/quill_no.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Materiale",
     "color": "Farge",
+    "lineheight": "Linjehøyde",
     "savedUsingTheNetwork": "Lagret ved hjelp av nettverket",
     "pleaseEnterTextForYourLink": "Vennligst skriv inn tekst for lenken din (for eksempel 'Lær mer')",
     "pleaseEnterTheLinkURL": "Vennligst skriv inn lenkens URL (for eksempel 'https://example.com')",

lib/src/l10n/quill_pl.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Materiał",
     "color": "Kolor",
+    "lineheight": "Wysokość linii",
     "pleaseEnterAValidVideoURL": "Proszę wprowadzić poprawny adres URL wideo",
     "photo": "Zdjęcie",
     "image": "Obraz",

lib/src/l10n/quill_pt.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Cor",
+    "lineheight": "Altura da linha",
     "pleaseEnterAValidVideoURL": "Por favor, insira uma URL de vídeo válida",
     "photo": "Foto",
     "image": "Imagem",

lib/src/l10n/quill_pt_br.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Cor",
+    "lineheight": "Altura da linha",
     "pleaseEnterAValidVideoURL": "Por favor, insira uma URL de vídeo válida",
     "photo": "Foto",
     "image": "Imagem",

lib/src/l10n/quill_ro.arb

@@ -67,6 +67,7 @@
   "hex": "Hex",
   "material": "Material",
   "color": "Culoare",
+  "lineheight": "Inaltimea liniei",
   "findText": "Găsește text",
   "moveToPreviousOccurrence": "Mutați la apariția anterioară",
   "moveToNextOccurrence": "Mutați la apariția următoare",

lib/src/l10n/quill_ro_RO.arb

@@ -67,6 +67,7 @@
   "hex": "Hex",
   "material": "Material",
   "color": "Culoare",
+  "lineheight": "Inaltimea liniei",
   "findText": "Găsește text",
   "moveToPreviousOccurrence": "Mutați la apariția anterioară",
   "moveToNextOccurrence": "Mutați la apariția următoare",

lib/src/l10n/quill_ru.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Материал",
     "color": "Цвет",
+    "lineheight": "Высота линии",
     "pleaseEnterAValidVideoURL": "Пожалуйста, введите действительный URL-адрес видео",
     "photo": "Фото",
     "image": "Изображение",

lib/src/l10n/quill_sk.arb

@@ -67,6 +67,7 @@
     "hex": "Hex",
     "material": "Materiál",
     "color": "Farba",
+    "lineheight": "Výška riadku",
     "findText": "Nájsť text",
     "moveToPreviousOccurrence": "Prejsť na predchádzajúce výskyty",
     "moveToNextOccurrence": "Prejsť na ďalší výskyt",

lib/src/l10n/quill_sr.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Materijal",
     "color": "Boja",
+    "lineheight": "Visina linije",
     "savedUsingTheNetwork": "Sačuvano korišćenjem mreže",
     "pleaseEnterTextForYourLink": "Unesite tekst za svoj link (na primer, 'Saznajte više')",
     "pleaseEnterTheLinkURL": "Unesite URL linka (na primer, 'https://example.com')",

lib/src/l10n/quill_sv.arb

@@ -67,6 +67,7 @@
   "hex": "Hex",
   "material": "Material",
   "color": "Färg",
+  "lineheight": "Radavstånd",
   "findText": "Hitta text",
   "moveToPreviousOccurrence": "Gå till föregående förekomst",
   "moveToNextOccurrence": "Gå till nästa förekomst",

lib/src/l10n/quill_sw.arb

@@ -60,6 +60,7 @@
     "hex": "Hexi",
     "material": "Nyenzo",
     "color": "Rangi",
+    "lineheight": "Urefu wa mstari",
     "findText": "Pata Maandishi",
     "moveToPreviousOccurrence": "Nenda Kwenye Tukio la Awali",
     "moveToNextOccurrence": "Nenda kwa Tukio linalofuata",

lib/src/l10n/quill_tk.arb

@@ -60,6 +60,7 @@
     "hex": "Hex",
     "material": "Material",
     "color": "Reňk",
+    "lineheight": "Çyzyk beýikligi",
     "findText": "Tekst tapyň",
     "moveToPreviousOccurrence": "Öňki hadysa geçiň",
     "moveToNextOccurrence": "Indiki hadysa geçiň",

lib/src/l10n/quill_tr.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Malzeme",
     "color": "Renk",
+    "lineheight": "Satır yüksekliği",
     "pleaseEnterAValidVideoURL": "Lütfen geçerli bir video URL'si girin",
     "photo": "Fotoğraf",
     "image": "Görüntü",

lib/src/l10n/quill_uk.arb

@@ -14,6 +14,7 @@
     "hex": "Hex",
     "material": "Матеріал",
     "color": "Колір",
+    "lineheight": "Висота лінії",
     "pleaseEnterAValidVideoURL": "Будь ласка, введіть дійсну URL-адресу відео",
     "photo": "Фото",
     "image": "Зображення",

lib/src/l10n/quill_ur.arb

@@ -69,6 +69,7 @@
     "hex": "ہیکس",
     "material": "مواد",
     "color": "رنگ",
+    "lineheight": "لکیر کی اونچائی",
     "savedUsingTheNetwork": "نیٹ ورک کا استعمال کر کے محفوظ ہوا",
     "pleaseEnterTextForYourLink": "براہ کرم اپنے لنک کے لیے متن درج کریں (مثال کے طور پر، 'مزید جانیں')",
     "pleaseEnterTheLinkURL": "براہ کرم لنک کا URL درج کریں (مثال کے طور پر، 'https://example.com')",

lib/src/l10n/quill_vi.arb

@@ -69,6 +69,7 @@
     "hex": "Hex",
     "material": "Chất liệu",
     "color": "Màu",
+    "lineheight": "Chiều cao giữa các dòng",
     "savedUsingTheNetwork": "Đã lưu bằng cách sử dụng mạng",
     "pleaseEnterTextForYourLink": "Vui lòng nhập văn bản cho liên kết của bạn (ví dụ: 'Tìm hiểu thêm')",
     "pleaseEnterTheLinkURL": "Vui lòng nhập URL của liên kết (ví dụ: 'https://example.com')",

lib/src/l10n/quill_zh.arb

@@ -67,6 +67,7 @@
   "hex": "十六进制",
   "material": "Material 设计",
   "color": "颜色",
+  "lineheight": "行高",
   "findText": "搜索文本",
   "moveToPreviousOccurrence": "上一个匹配项",
   "moveToNextOccurrence": "下一个匹配项",

lib/src/l10n/quill_zh_CN.arb

@@ -67,6 +67,7 @@
     "hex": "十六进制",
     "material": "Material 设计",
     "color": "颜色",
+    "lineheight": "行高",
     "findText": "搜索文本",
     "moveToPreviousOccurrence": "上一个匹配项",
     "moveToNextOccurrence": "下一个匹配项",

lib/src/l10n/quill_zh_HK.arb

@@ -69,6 +69,7 @@
     "hex": "十六進制",
     "material": "物料",
     "color": "顏色",
+    "lineheight": "行高",
     "pleaseEnterAValidVideoURL": "請輸入有效的視頻URL",
     "photo": "照片",
     "image": "圖像",

lib/src/models/config/toolbar/buttons/select_line_height_style_dropdown_button_configurations.dart

@@ -0,0 +1,78 @@
+import 'package:flutter/widgets.dart'
+    show IconData, TextStyle, ValueChanged, VoidCallback;
+
+import '../../../../widgets/toolbar/base_toolbar.dart';
+import '../../../documents/attribute.dart';
+import '../../../themes/quill_icon_theme.dart';
+
+class QuillToolbarSelectLineHeightStyleDropdownButtonExtraOptions
+    extends QuillToolbarBaseButtonExtraOptions {
+  const QuillToolbarSelectLineHeightStyleDropdownButtonExtraOptions({
+    required super.controller,
+    required super.context,
+    required super.onPressed,
+    required this.currentValue,
+  });
+  final Attribute currentValue;
+}
+
+class QuillToolbarSelectLineHeightStyleDropdownButtonOptions
+    extends QuillToolbarBaseButtonOptions<
+        QuillToolbarSelectLineHeightStyleDropdownButtonOptions,
+        QuillToolbarSelectLineHeightStyleDropdownButtonExtraOptions> {
+  const QuillToolbarSelectLineHeightStyleDropdownButtonOptions({
+    super.afterButtonPressed,
+    super.childBuilder,
+    super.iconTheme,
+    super.tooltip,
+    super.iconSize,
+    super.iconButtonFactor,
+    this.textStyle,
+    super.iconData,
+    this.attributes,
+    this.defaultDisplayText,
+    this.width,
+  });
+
+  final TextStyle? textStyle;
+
+  /// Line-height attributes, defaults to:
+  /// ```dart
+  /// [
+  ///   Attribute.lineHeightNormal,
+  ///   Attribute.lineHeightTight,
+  ///   Attribute.lineHeightOneAndHalf,
+  ///   Attribute.lineHeightDouble,
+  /// ]
+  /// ```
+  final List<Attribute<double?>>? attributes;
+  final double? width;
+
+  final String? defaultDisplayText;
+
+  QuillToolbarSelectLineHeightStyleDropdownButtonOptions copyWith({
+    ValueChanged<String>? onSelected,
+    List<Attribute<double>>? attributes,
+    TextStyle? style,
+    double? iconSize,
+    double? iconButtonFactor,
+    IconData? iconData,
+    VoidCallback? afterButtonPressed,
+    String? tooltip,
+    QuillIconTheme? iconTheme,
+    String? defaultDisplayText,
+    double? width,
+  }) {
+    return QuillToolbarSelectLineHeightStyleDropdownButtonOptions(
+      attributes: attributes ?? this.attributes,
+      iconData: iconData ?? this.iconData,
+      afterButtonPressed: afterButtonPressed ?? this.afterButtonPressed,
+      tooltip: tooltip ?? this.tooltip,
+      iconTheme: iconTheme ?? this.iconTheme,
+      iconSize: iconSize ?? this.iconSize,
+      iconButtonFactor: iconButtonFactor ?? this.iconButtonFactor,
+      defaultDisplayText: defaultDisplayText ?? this.defaultDisplayText,
+      width: width ?? this.width,
+    );
+  }
+}

lib/src/models/config/toolbar/simple_toolbar_button_options.dart

@@ -16,6 +16,7 @@ import 'buttons/search_configurations.dart';
 import 'buttons/select_alignment_configurations.dart';
 import 'buttons/select_header_style_buttons_configurations.dart';
 import 'buttons/select_header_style_dropdown_button_configurations.dart';
+import 'buttons/select_line_height_style_dropdown_button_configurations.dart';
 import 'buttons/toggle_check_list_configurations.dart';
 import 'buttons/toggle_style_configurations.dart';
 
@@ -72,6 +73,8 @@ class QuillSimpleToolbarButtonOptions extends Equatable {
         const QuillToolbarSelectHeaderStyleButtonsOptions(),
     this.selectHeaderStyleDropdownButton =
         const QuillToolbarSelectHeaderStyleDropdownButtonOptions(),
+    this.selectLineHeightStyleDropdownButton =
+        const QuillToolbarSelectLineHeightStyleDropdownButtonOptions(),
     this.linkStyle = const QuillToolbarLinkStyleButtonOptions(),
     this.linkStyle2 = const QuillToolbarLinkStyleButton2Options(),
     this.customButtons = const QuillToolbarCustomButtonOptions(),
@@ -131,6 +134,9 @@ class QuillSimpleToolbarButtonOptions extends Equatable {
   final QuillToolbarSelectHeaderStyleDropdownButtonOptions
       selectHeaderStyleDropdownButton;
 
+  final QuillToolbarSelectLineHeightStyleDropdownButtonOptions
+      selectLineHeightStyleDropdownButton;
+
   final QuillToolbarLinkStyleButtonOptions linkStyle;
   final QuillToolbarLinkStyleButton2Options linkStyle2;
 

lib/src/models/config/toolbar/simple_toolbar_configurations.dart

@@ -97,6 +97,7 @@ class QuillSimpleToolbarConfigurations extends QuillSharedToolbarProperties {
     this.showItalicButton = true,
     this.showSmallButton = false,
     this.showUnderLineButton = true,
+    this.showLineHeightButton = false,
     this.showStrikeThrough = true,
     this.showInlineCode = true,
     this.showColorButton = true,
@@ -217,6 +218,10 @@ class QuillSimpleToolbarConfigurations extends QuillSharedToolbarProperties {
   final bool showClipboardCopy;
   final bool showClipboardPaste;
 
+  /// This activates a functionality that is only implemented in [flutter_quill] and is NOT originally
+  /// used in the [Quill Js API]. So it could cause conflicts if you use this attribute with the original Delta format of Quill Js
+  final bool showLineHeightButton;
+
   /// Toolbar items to display for controls of embed blocks
   final List<EmbedButtonBuilder>? embedButtons;
 

lib/src/models/documents/attribute.dart

@@ -40,6 +40,7 @@ class Attribute<T> extends Equatable {
     Attribute.background.key: Attribute.background,
     Attribute.placeholder.key: Attribute.placeholder,
     Attribute.header.key: Attribute.header,
+    Attribute.lineHeight.key: Attribute.lineHeight,
     Attribute.align.key: Attribute.align,
     Attribute.direction.key: Attribute.direction,
     Attribute.list.key: Attribute.list,
@@ -87,6 +88,8 @@ class Attribute<T> extends Equatable {
 
   static const HeaderAttribute header = HeaderAttribute();
 
+  static const LineHeightAttribute lineHeight = LineHeightAttribute();
+
   static const IndentAttribute indent = IndentAttribute();
 
   static const AlignAttribute align = AlignAttribute(null);
@@ -147,6 +150,7 @@ class Attribute<T> extends Equatable {
     Attribute.blockQuote.key,
     Attribute.indent.key,
     Attribute.direction.key,
+    Attribute.lineHeight.key,
   });
 
   static final Set<String> blockKeysExceptHeader = LinkedHashSet.of({
@@ -154,6 +158,7 @@ class Attribute<T> extends Equatable {
     Attribute.align.key,
     Attribute.codeBlock.key,
     Attribute.blockQuote.key,
+    Attribute.lineHeight.key,
     Attribute.indent.key,
     Attribute.direction.key,
   });
@@ -349,6 +354,27 @@ class HeaderAttribute extends Attribute<int?> {
       : super('header', AttributeScope.block, level);
 }
 
+/// This attribute represents the space between text lines. The line height can be
+/// adjusted using predefined constants or custom values
+///
+/// The attribute at the json looks like: "attributes":{"line-height": 1.5 }
+class LineHeightAttribute extends Attribute<double?> {
+  const LineHeightAttribute({double? lineHeight})
+      : super('line-height', AttributeScope.block, lineHeight);
+
+  static const Attribute<double?> lineHeightNormal =
+      LineHeightAttribute(lineHeight: 1);
+
+  static const Attribute<double?> lineHeightTight =
+      LineHeightAttribute(lineHeight: 1.15);
+
+  static const Attribute<double?> lineHeightOneAndHalf =
+      LineHeightAttribute(lineHeight: 1.5);
+
+  static const Attribute<double?> lineHeightDouble =
+      LineHeightAttribute(lineHeight: 2);
+}
+
 class IndentAttribute extends Attribute<int?> {
   const IndentAttribute({int? level})
       : super('indent', AttributeScope.block, level);

lib/src/models/documents/document.dart

@@ -354,10 +354,7 @@ class Document {
     } catch (e) {
       throw StateError('_delta compose failed');
     }
-
+    assert(_delta == _root.toDelta(), 'Compose failed');
-    if (_delta != _root.toDelta()) {
-      throw StateError('Compose failed');
-    }
     final change = DocChange(originalDelta, delta, changeSource);
     documentChangeObserver.add(change);
     history.handleDocChange(change);
@@ -442,7 +439,6 @@ class Document {
           doc.toString(), 'Document Delta cannot be empty.');
     }
 
-    // print(doc.last.data.runtimeType);
     assert((doc.last.data as String).endsWith('\n'));
 
     var offset = 0;

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

@@ -47,11 +47,14 @@ abstract base class QuillContainer<T extends Node?> extends Node {
   /// Always returns fresh instance.
   T get defaultChild;
 
+  int? _length;
+
   /// Adds [node] to the end of this container children list.
   void add(T node) {
     assert(node?.parent == null);
     node?.parent = this;
     _children.add(node as Node);
+    clearLengthCache();
   }
 
   /// Adds [node] to the beginning of this container children list.
@@ -59,6 +62,7 @@ abstract base class QuillContainer<T extends Node?> extends Node {
     assert(node?.parent == null);
     node?.parent = this;
     _children.addFirst(node as Node);
+    clearLengthCache();
   }
 
   /// Removes [node] from this container.
@@ -66,6 +70,7 @@ abstract base class QuillContainer<T extends Node?> extends Node {
     assert(node?.parent == this);
     node?.parent = null;
     _children.remove(node as Node);
+    clearLengthCache();
   }
 
   /// Moves children of this node to [newParent].
@@ -118,11 +123,20 @@ abstract base class QuillContainer<T extends Node?> extends Node {
           .map((e) => e.toPlainText(embedBuilders, unknownEmbedBuilder))
           .join();
 
-  /// Content length of this node's children.
-  ///
-  /// To get number of children in this node use [childCount].
   @override
-  int get length => _children.fold(0, (cur, node) => cur + node.length);
+  int get length {
+    _length ??= _children.fold(0, (cur, node) => (cur ?? 0) + node.length);
+    return _length!;
+  }
+
+  @override
+  void clearLengthCache() {
+    _length = null;
+    clearOffsetCache();
+    if (parent != null) {
+      parent!.clearLengthCache();
+    }
+  }
 
   @override
   void insert(int index, Object data, Style? style) {

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

@@ -24,18 +24,39 @@ abstract base class Leaf extends Node {
   /// Contents of this node, either a String if this is a [QuillText] or an
   /// [Embed] if this is an [BlockEmbed].
   Object get value => _value;
+
+  set value(Object v) {
+    _value = v;
+    _length = null;
+    clearOffsetCache();
+  }
+
   Object _value;
 
   @override
   Line? get parent => super.parent as Line?;
 
+  int? _length;
+
   @override
   int get length {
+    if (_length != null) {
+      return _length!;
+    }
     if (_value is String) {
-      return (_value as String).length;
+      _length = (_value as String).length;
+    } else {
+      // return 1 for embedded object
+      _length = 1;
+    }
+    return _length!;
+  }
+
+  @override
+  void clearLengthCache() {
+    if (parent != null) {
+      parent!.clearLengthCache();
     }
-    // return 1 for embedded object
-    return 1;
   }
 
   @override
@@ -47,6 +68,7 @@ abstract base class Leaf extends Node {
 
   @override
   void insert(int index, Object data, Style? style) {
+    final length = this.length;
     assert(index >= 0 && index <= length);
     final node = Leaf(data);
     if (index < length) {
@@ -75,6 +97,7 @@ abstract base class Leaf extends Node {
 
   @override
   void delete(int index, int? len) {
+    final length = this.length;
     assert(index < length);
 
     final local = math.min(length - index, len!);
@@ -117,7 +140,7 @@ abstract base class Leaf extends Node {
     // Merging it with previous node if style is the same.
     final prev = node.previous;
     if (!node.isFirst && prev is QuillText && prev.style == node.style) {
-      prev._value = prev.value + node.value;
+      prev.value = prev.value + node.value;
       node.unlink();
       node = prev;
     }
@@ -125,7 +148,7 @@ abstract base class Leaf extends Node {
     // Merging it with next node if style is the same.
     final next = node.next;
     if (!node.isLast && next is QuillText && next.style == node.style) {
-      node._value = node.value + next.value;
+      node.value = node.value + next.value;
       next.unlink();
     }
   }
@@ -152,7 +175,7 @@ abstract base class Leaf extends Node {
 
     assert(this is QuillText);
     final text = _value as String;
-    _value = text.substring(0, index);
+    value = text.substring(0, index);
     final split = Leaf(text.substring(index))..applyStyle(style);
     insertAfter(split);
     return split;

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

@@ -127,11 +127,11 @@ base class Line extends QuillContainer<Leaf?> {
     if (style == null) {
       return;
     }
-    final thisLength = length;
+    final length = this.length;
 
-    final local = math.min(thisLength - index, len!);
+    final local = math.min(length - index, len!);
     // If index is at newline character then this is a line/block style update.
-    final isLineFormat = (index + local == thisLength) && local == 1;
+    final isLineFormat = (index + local == length) && local == 1;
 
     if (isLineFormat) {
       assert(
@@ -145,7 +145,7 @@ base class Line extends QuillContainer<Leaf?> {
       assert(style.values.every((attr) =>
           attr.scope == AttributeScope.inline ||
           attr.scope == AttributeScope.ignore));
-      assert(index + local != thisLength);
+      assert(index + local != length);
       super.retain(index, local, style);
     }
 
@@ -158,6 +158,7 @@ base class Line extends QuillContainer<Leaf?> {
 
   @override
   void delete(int index, int? len) {
+    final length = this.length;
     final local = math.min(length - index, len!);
     final isLFDeleted = index + local == length; // Line feed
     if (isLFDeleted) {

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

@@ -47,24 +47,41 @@ abstract base class Node extends LinkedListEntry<Node> {
   /// Length of this node in characters.
   int get length;
 
+  void clearLengthCache();
+
   Node clone() => newInstance()..applyStyle(style);
 
+  int? _offset;
+
   /// Offset in characters of this node relative to [parent] node.
   ///
   /// To get offset of this node in the document see [documentOffset].
   int get offset {
-    var offset = 0;
+    if (_offset != null) {
+      return _offset!;
+    }
 
     if (list == null || isFirst) {
-      return offset;
+      return 0;
+    }
+    var offset = 0;
+    for (final node in list!) {
+      if (node == this) {
+        break;
+      }
+      offset += node.length;
     }
 
-    var cur = this;
+    _offset = offset;
-    do {
+    return _offset!;
-      cur = cur.previous!;
+  }
-      offset += cur.length;
+
-    } while (!cur.isFirst);
+  void clearOffsetCache() {
-    return offset;
+    _offset = null;
+    final next = this.next;
+    if (next != null) {
+      next.clearOffsetCache();
+    }
   }
 
   /// Offset in characters of this node in the document.
@@ -100,6 +117,7 @@ abstract base class Node extends LinkedListEntry<Node> {
     assert(entry.parent == null && parent != null);
     entry.parent = parent;
     super.insertBefore(entry);
+    clearLengthCache();
   }
 
   @override
@@ -107,11 +125,13 @@ abstract base class Node extends LinkedListEntry<Node> {
     assert(entry.parent == null && parent != null);
     entry.parent = parent;
     super.insertAfter(entry);
+    clearLengthCache();
   }
 
   @override
   void unlink() {
     assert(parent != null);
+    clearLengthCache();
     parent = null;
     super.unlink();
   }

lib/src/models/rules/delete.dart

@@ -1,6 +1,7 @@
 import 'package:meta/meta.dart' show immutable;
 
 import '../../../quill_delta.dart';
+import '../../models/documents/document.dart';
 import '../documents/attribute.dart';
 import '../documents/nodes/embeddable.dart';
 import 'rule.dart';
@@ -26,9 +27,9 @@ class EnsureLastLineBreakDeleteRule extends DeleteRule {
   const EnsureLastLineBreakDeleteRule();
 
   @override
-  Delta? applyRule(Delta document, int index,
+  Delta? applyRule(Document document, int index,
       {int? len, Object? data, Attribute? attribute}) {
-    final itr = DeltaIterator(document)..skip(index + len!);
+    final itr = DeltaIterator(document.toDelta())..skip(index + len!);
 
     return Delta()
       ..retain(index)
@@ -43,9 +44,9 @@ class CatchAllDeleteRule extends DeleteRule {
   const CatchAllDeleteRule();
 
   @override
-  Delta applyRule(Delta document, int index,
+  Delta applyRule(Document document, int index,
       {int? len, Object? data, Attribute? attribute}) {
-    final itr = DeltaIterator(document)..skip(index + len!);
+    final itr = DeltaIterator(document.toDelta())..skip(index + len!);
 
     return Delta()
       ..retain(index)
@@ -64,9 +65,9 @@ class PreserveLineStyleOnMergeRule extends DeleteRule {
   const PreserveLineStyleOnMergeRule();
 
   @override
-  Delta? applyRule(Delta document, int index,
+  Delta? applyRule(Document document, int index,
       {int? len, Object? data, Attribute? attribute}) {
-    final itr = DeltaIterator(document)..skip(index);
+    final itr = DeltaIterator(document.toDelta())..skip(index);
     var op = itr.next(1);
     if (op.data != '\n') {
       return null;
@@ -121,9 +122,9 @@ class EnsureEmbedLineRule extends DeleteRule {
   const EnsureEmbedLineRule();
 
   @override
-  Delta? applyRule(Delta document, int index,
+  Delta? applyRule(Document document, int index,
       {int? len, Object? data, Attribute? attribute}) {
-    final itr = DeltaIterator(document);
+    final itr = DeltaIterator(document.toDelta());
 
     var op = itr.skip(index);
     final opAfter = itr.skip(index + 1);

lib/src/models/rules/format.dart

@@ -1,6 +1,7 @@
 import 'package:meta/meta.dart' show immutable;
 
 import '../../../quill_delta.dart';
+import '../../models/documents/document.dart';
 import '../documents/attribute.dart';
 import 'rule.dart';
 
@@ -28,7 +29,7 @@ class ResolveLineFormatRule extends FormatRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -41,7 +42,7 @@ class ResolveLineFormatRule extends FormatRule {
     // Apply line styles to all newline characters within range of this
     // retain operation.
     var result = Delta()..retain(index);
-    final itr = DeltaIterator(document)..skip(index);
+    final itr = DeltaIterator(document.toDelta())..skip(index);
     Operation op;
     for (var cur = 0; cur < len! && itr.hasNext; cur += op.length!) {
       op = itr.next(len - cur);
@@ -119,7 +120,7 @@ class FormatLinkAtCaretPositionRule extends FormatRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -130,7 +131,7 @@ class FormatLinkAtCaretPositionRule extends FormatRule {
     }
 
     final delta = Delta();
-    final itr = DeltaIterator(document);
+    final itr = DeltaIterator(document.toDelta());
     final before = itr.skip(index), after = itr.next();
     int? beg = index, retain = 0;
     if (before != null && before.hasAttribute(attribute.key)) {
@@ -159,7 +160,7 @@ class ResolveInlineFormatRule extends FormatRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -170,7 +171,7 @@ class ResolveInlineFormatRule extends FormatRule {
     }
 
     final delta = Delta()..retain(index);
-    final itr = DeltaIterator(document)..skip(index);
+    final itr = DeltaIterator(document.toDelta())..skip(index);
 
     Operation op;
     for (var cur = 0; cur < len! && itr.hasNext; cur += op.length!) {
@@ -205,7 +206,7 @@ class ResolveImageFormatRule extends FormatRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,

lib/src/models/rules/insert.dart

@@ -33,7 +33,7 @@ class PreserveLineStyleOnSplitRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -42,8 +42,7 @@ class PreserveLineStyleOnSplitRule extends InsertRule {
     if (data is! String || data != '\n') {
       return null;
     }
-
+    final itr = DeltaIterator(document.toDelta());
-    final itr = DeltaIterator(document);
     final before = itr.skip(index);
     if (before == null) {
       return null;
@@ -84,7 +83,7 @@ class PreserveBlockStyleOnInsertRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -94,8 +93,7 @@ class PreserveBlockStyleOnInsertRule extends InsertRule {
       // Only interested in text containing at least one newline character.
       return null;
     }
-
+    final itr = DeltaIterator(document.toDelta())..skip(index);
-    final itr = DeltaIterator(document)..skip(index);
 
     // Look for the next newline.
     final nextNewLine = _getNextNewLine(itr);
@@ -171,7 +169,7 @@ class AutoExitBlockRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -181,7 +179,7 @@ class AutoExitBlockRule extends InsertRule {
       return null;
     }
 
-    final itr = DeltaIterator(document);
+    final itr = DeltaIterator(document.toDelta());
     final prev = itr.skip(index), cur = itr.next();
     final blockStyle = Style.fromJson(cur.attributes).getBlockExceptHeader();
     // We are not in a block, ignore.
@@ -241,7 +239,7 @@ class ResetLineFormatOnNewLineRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -251,7 +249,7 @@ class ResetLineFormatOnNewLineRule extends InsertRule {
       return null;
     }
 
-    final itr = DeltaIterator(document)..skip(index);
+    final itr = DeltaIterator(document.toDelta())..skip(index);
     final cur = itr.next();
     if (cur.data is! String || !(cur.data as String).startsWith('\n')) {
       return null;
@@ -278,7 +276,7 @@ class InsertEmbedsRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -295,7 +293,7 @@ class InsertEmbedsRule extends InsertRule {
     }
 
     final delta = Delta()..retain(index + (len ?? 0));
-    final itr = DeltaIterator(document);
+    final itr = DeltaIterator(document.toDelta());
     final prev = itr.skip(index), cur = itr.next();
 
     final textBefore = prev?.data is String ? prev!.data as String? : '';
@@ -386,7 +384,7 @@ class AutoFormatMultipleLinksRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -397,7 +395,7 @@ class AutoFormatMultipleLinksRule extends InsertRule {
     if (data is! String) return null;
 
     // Get current text.
-    final entireText = Document.fromDelta(document).toPlainText();
+    final entireText = document.toPlainText();
 
     // Get word before insertion.
     final leftWordPart = entireText
@@ -502,7 +500,7 @@ class AutoFormatLinksRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -512,7 +510,7 @@ class AutoFormatLinksRule extends InsertRule {
       return null;
     }
 
-    final itr = DeltaIterator(document);
+    final itr = DeltaIterator(document.toDelta());
     final prev = itr.skip(index);
     if (prev == null || prev.data is! String) {
       return null;
@@ -548,7 +546,7 @@ class PreserveInlineStylesRule extends InsertRule {
 
   @override
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -558,7 +556,7 @@ class PreserveInlineStylesRule extends InsertRule {
       return null;
     }
 
-    final itr = DeltaIterator(document);
+    final itr = DeltaIterator(document.toDelta());
     var prev = itr.skip(len == 0 ? index : index + 1);
 
     if (prev == null || prev.data is! String) return null;
@@ -628,7 +626,7 @@ class CatchAllInsertRule extends InsertRule {
 
   @override
   Delta applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,

lib/src/models/rules/rule.dart

@@ -14,7 +14,7 @@ abstract class Rule {
   const Rule();
 
   Delta? apply(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -35,7 +35,7 @@ abstract class Rule {
   /// Applies heuristic rule to an operation on a [document] and returns
   /// resulting [Delta].
   Delta? applyRule(
-    Delta document,
+    Document document,
     int index, {
     int? len,
     Object? data,
@@ -85,13 +85,12 @@ class Rules {
     Object? data,
     Attribute? attribute,
   }) {
-    final delta = document.toDelta();
     for (final rule in _customRules + _rules) {
       if (rule.type != ruleType) {
         continue;
       }
       try {
-        final result = rule.apply(delta, index,
+        final result = rule.apply(document, index,
             len: len, data: data, attribute: attribute);
         if (result != null) {
           return result..trim();