Revert "Simplify Embeddable and remove BlockEmbed"

This reverts commit e450c61332.

example/lib/universal_ui/universal_ui.dart

@@ -28,7 +28,7 @@ var ui = UniversalUI();
 Widget defaultEmbedBuilderWeb(BuildContext context, Embed node, bool readOnly) {
   switch (node.value.type) {
     case 'image':
-      final imageUrl = node.value.data;
+      final String imageUrl = node.value.data;
       final size = MediaQuery.of(context).size;
       UniversalUI().platformViewRegistry.registerViewFactory(
           imageUrl, (viewId) => html.ImageElement()..src = imageUrl);

lib/flutter_quill.dart

@@ -2,7 +2,7 @@ library flutter_quill;
 
 export 'src/models/documents/attribute.dart';
 export 'src/models/documents/document.dart';
-export 'src/models/documents/nodes/embeddable.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';

lib/src/models/documents/document.dart

@@ -8,7 +8,7 @@ import 'attribute.dart';
 import 'history.dart';
 import 'nodes/block.dart';
 import 'nodes/container.dart';
-import 'nodes/embeddable.dart';
+import 'nodes/embed.dart';
 import 'nodes/line.dart';
 import 'nodes/node.dart';
 import 'style.dart';
@@ -230,7 +230,7 @@ class Document {
     if (data is Embeddable) {
       return data;
     }
-    return Embeddable.fromJson(data as Map<String, String>);
+    return Embeddable.fromJson(data as Map<String, dynamic>);
   }
 
   void close() {

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

@@ -0,0 +1,42 @@
+/// An object which can be embedded into a Quill document.
+///
+/// See also:
+///
+/// * [BlockEmbed] which represents a block embed.
+class Embeddable {
+  const Embeddable(this.type, this.data);
+
+  /// The type of this object.
+  final String type;
+
+  /// The data payload of this object.
+  final dynamic data;
+
+  Map<String, dynamic> toJson() {
+    final m = <String, String>{type: data};
+    return m;
+  }
+
+  static Embeddable fromJson(Map<String, dynamic> json) {
+    final m = Map<String, dynamic>.from(json);
+    assert(m.length == 1, 'Embeddable map must only have one key');
+
+    return BlockEmbed(m.keys.first, m.values.first);
+  }
+}
+
+/// An object which occupies an entire line in a document and cannot co-exist
+/// inline with regular text.
+///
+/// There are two built-in embed types supported by Quill documents, however
+/// the document model itself does not make any assumptions about the types
+/// of embedded objects and allows users to define their own types.
+class BlockEmbed extends Embeddable {
+  const BlockEmbed(String type, String data) : super(type, data);
+
+  static const String imageType = 'image';
+  static BlockEmbed image(String imageUrl) => BlockEmbed(imageType, imageUrl);
+
+  static const String videoType = 'video';
+  static BlockEmbed video(String videoUrl) => BlockEmbed(videoType, videoUrl);
+}

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

@@ -1,28 +0,0 @@
-/// An object which can be embedded into a Quill document.
-class Embeddable {
-  const Embeddable(this.type, this.data);
-
-  /// The type of this object.
-  final String type;
-
-  /// The data payload of this object.
-  final String data;
-
-  Map<String, String> toJson() {
-    final m = <String, String>{type: data};
-    return m;
-  }
-
-  static Embeddable fromJson(Map<String, String> json) {
-    final m = Map<String, String>.from(json);
-    assert(m.length == 1, 'Embeddable map must only have one key');
-
-    return Embeddable(m.keys.single, m.values.single);
-  }
-
-  static const String imageType = 'image';
-  static Embeddable image(String imageUrl) => Embeddable(imageType, imageUrl);
-
-  static const String videoType = 'video';
-  static Embeddable video(String videoUrl) => Embeddable(videoType, videoUrl);
-}

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

@@ -2,7 +2,7 @@ import 'dart:math' as math;
 
 import '../../quill_delta.dart';
 import '../style.dart';
-import 'embeddable.dart';
+import 'embed.dart';
 import 'line.dart';
 import 'node.dart';
 

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

@@ -7,7 +7,7 @@ import '../attribute.dart';
 import '../style.dart';
 import 'block.dart';
 import 'container.dart';
-import 'embeddable.dart';
+import 'embed.dart';
 import 'leaf.dart';
 import 'node.dart';
 

lib/src/widgets/controller.dart

@@ -5,7 +5,7 @@ import 'package:tuple/tuple.dart';
 
 import '../models/documents/attribute.dart';
 import '../models/documents/document.dart';
-import '../models/documents/nodes/embeddable.dart';
+import '../models/documents/nodes/embed.dart';
 import '../models/documents/style.dart';
 import '../models/quill_delta.dart';
 import '../utils/delta.dart';

lib/src/widgets/toolbar/image_button.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
-import '../../models/documents/nodes/embeddable.dart';
+import '../../models/documents/nodes/embed.dart';
 import '../../models/themes/quill_dialog_theme.dart';
 import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
@@ -98,7 +98,7 @@ class ImageButton extends StatelessWidget {
       final index = controller.selection.baseOffset;
       final length = controller.selection.extentOffset - index;
 
-      controller.replaceText(index, length, Embeddable.image(value), null);
+      controller.replaceText(index, length, BlockEmbed.image(value), null);
     }
   }
 }

lib/src/widgets/toolbar/image_video_utils.dart

@@ -4,7 +4,7 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
-import '../../models/documents/nodes/embeddable.dart';
+import '../../models/documents/nodes/embed.dart';
 import '../../translations/toolbar.i18n.dart';
 import '../../utils/platform.dart';
 import '../controller.dart';
@@ -75,7 +75,7 @@ class ImageVideoUtils {
     }
 
     if (imageUrl != null) {
-      controller.replaceText(index, length, Embeddable.image(imageUrl), null);
+      controller.replaceText(index, length, BlockEmbed.image(imageUrl), null);
     }
   }
 
@@ -127,7 +127,7 @@ class ImageVideoUtils {
     }
 
     if (videoUrl != null) {
-      controller.replaceText(index, length, Embeddable.video(videoUrl), null);
+      controller.replaceText(index, length, BlockEmbed.video(videoUrl), null);
     }
   }
 

lib/src/widgets/toolbar/video_button.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:image_picker/image_picker.dart';
 
-import '../../models/documents/nodes/embeddable.dart';
+import '../../models/documents/nodes/embed.dart';
 import '../../models/themes/quill_dialog_theme.dart';
 import '../../models/themes/quill_icon_theme.dart';
 import '../controller.dart';
@@ -98,7 +98,7 @@ class VideoButton extends StatelessWidget {
       final index = controller.selection.baseOffset;
       final length = controller.selection.extentOffset - index;
 
-      controller.replaceText(index, length, Embeddable.video(value), null);
+      controller.replaceText(index, length, BlockEmbed.video(value), null);
     }
   }
 }