From 954ae8f76147128369f933ba8bbd7db95a640e6e Mon Sep 17 00:00:00 2001
From: "Lucas.Xu" <lucas.xu@appflowy.io>
Date: Mon, 11 Sep 2023 21:28:10 +0700
Subject: [PATCH] fix: unable to paste html contains section

---
 .../command_shortcut_events/paste_command.dart    | 15 +++++++++++----
 lib/src/plugins/html/html_document_decoder.dart   |  4 +++-
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/lib/src/editor/editor_component/service/shortcuts/command_shortcut_events/paste_command.dart b/lib/src/editor/editor_component/service/shortcuts/command_shortcut_events/paste_command.dart
index 4fb91b46d..a81b21e76 100644
--- a/lib/src/editor/editor_component/service/shortcuts/command_shortcut_events/paste_command.dart
+++ b/lib/src/editor/editor_component/service/shortcuts/command_shortcut_events/paste_command.dart
@@ -72,8 +72,14 @@ CommandShortcutEventHandler _pasteCommandHandler = (editorState) {
     final html = data.html;
     if (html != null && html.isNotEmpty) {
       await editorState.deleteSelectionIfNeeded();
-      editorState.pasteHtml(html);
-    } else if (text != null && text.isNotEmpty) {
+      // if the html is pasted successfully, then return
+      // otherwise, paste the plain text
+      if (await editorState.pasteHtml(html)) {
+        return;
+      }
+    }
+
+    if (text != null && text.isNotEmpty) {
       await editorState.deleteSelectionIfNeeded();
       editorState.pastePlainText(text);
     }
@@ -87,7 +93,7 @@ RegExp _hrefRegex = RegExp(
 );
 
 extension on EditorState {
-  Future<void> pasteHtml(String html) async {
+  Future<bool> pasteHtml(String html) async {
     final nodes = htmlToDocument(html).root.children.toList();
     // remove the front and back empty line
     while (nodes.isNotEmpty && nodes.first.delta?.isEmpty == true) {
@@ -97,13 +103,14 @@ extension on EditorState {
       nodes.removeLast();
     }
     if (nodes.isEmpty) {
-      return;
+      return false;
     }
     if (nodes.length == 1) {
       await pasteSingleLineNode(nodes.first);
     } else {
       await pasteMultiLineNodes(nodes.toList());
     }
+    return true;
   }
 
   Future<void> pastePlainText(String plainText) async {
diff --git a/lib/src/plugins/html/html_document_decoder.dart b/lib/src/plugins/html/html_document_decoder.dart
index b8ef5d333..6545466fa 100644
--- a/lib/src/plugins/html/html_document_decoder.dart
+++ b/lib/src/plugins/html/html_document_decoder.dart
@@ -360,6 +360,7 @@ class HTMLTags {
   static const blockQuote = 'blockquote';
   static const div = 'div';
   static const divider = 'hr';
+  static const section = 'section';
 
   static List<String> formattingElements = [
     HTMLTags.anchor,
@@ -385,7 +386,8 @@ class HTMLTags {
     HTMLTags.paragraph,
     HTMLTags.blockQuote,
     HTMLTags.checkbox,
-    HTMLTags.image
+    HTMLTags.image,
+    HTMLTags.section,
   ];
 
   static bool isTopLevel(String tag) {