@@ -21,7 +21,6 @@ export function serializeInlineContentInternalHTML<
2121 editor : BlockNoteEditor < any , I , S > ,
2222 blockContent : PartialBlock < BSchema , I , S > [ "content" ] ,
2323 serializer : DOMSerializer ,
24- _toExternalHTML : boolean , // TODO, externalHTML for IC
2524 options ?: { document ?: Document }
2625) {
2726 let nodes : any ;
@@ -67,7 +66,7 @@ function serializeBlock<
6766 editor : BlockNoteEditor < BSchema , I , S > ,
6867 block : PartialBlock < BSchema , I , S > ,
6968 serializer : DOMSerializer ,
70- toExternalHTML : boolean ,
69+ listIndex : number ,
7170 options ?: { document ?: Document }
7271) {
7372 const BC_NODE = editor . pmSchema . nodes [ "blockContainer" ] ;
@@ -94,16 +93,23 @@ function serializeBlock<
9493 } ;
9594
9695 const impl = editor . blockImplementations [ block . type as any ] . implementation ;
97- const ret = toExternalHTML
98- ? impl . toExternalHTML ( { ...block , props } as any , editor as any )
99- : impl . toInternalHTML ( { ...block , props } as any , editor as any ) ;
96+ const ret = impl . toInternalHTML ( { ...block , props } as any , editor as any ) ;
97+
98+ if ( block . type === "numberedListItem" ) {
99+ // This is a workaround to make sure there's a list index set.
100+ // Normally, this is set on the internal prosemirror nodes by the NumberedListIndexingPlugin,
101+ // but:
102+ // - (a) this information is not available on the Blocks passed to the serializer. (we only have access to BlockNote Blocks)
103+ // - (b) the NumberedListIndexingPlugin might not even have run, because we can manually call blocksToFullHTML
104+ // with blocks that are not part of the active document
105+ ret . dom . setAttribute ( "data-index" , listIndex . toString ( ) ) ;
106+ }
100107
101108 if ( ret . contentDOM && block . content ) {
102109 const ic = serializeInlineContentInternalHTML (
103110 editor ,
104111 block . content as any , // TODO
105112 serializer ,
106- toExternalHTML ,
107113 options
108114 ) ;
109115 ret . contentDOM . appendChild ( ic ) ;
@@ -113,13 +119,7 @@ function serializeBlock<
113119
114120 if ( block . children && block . children . length > 0 ) {
115121 bc . contentDOM ?. appendChild (
116- serializeBlocksInternalHTML (
117- editor ,
118- block . children ,
119- serializer ,
120- toExternalHTML ,
121- options
122- )
122+ serializeBlocksInternalHTML ( editor , block . children , serializer , options )
123123 ) ;
124124 }
125125 return bc . dom ;
@@ -133,7 +133,6 @@ export const serializeBlocksInternalHTML = <
133133 editor : BlockNoteEditor < BSchema , I , S > ,
134134 blocks : PartialBlock < BSchema , I , S > [ ] ,
135135 serializer : DOMSerializer ,
136- toExternalHTML : boolean ,
137136 options ?: { document ?: Document }
138137) => {
139138 const BG_NODE = editor . pmSchema . nodes [ "blockGroup" ] ;
@@ -143,12 +142,18 @@ export const serializeBlocksInternalHTML = <
143142 contentDOM ?: HTMLElement ;
144143 } ;
145144
145+ let listIndex = 0 ;
146146 for ( const block of blocks ) {
147+ if ( block . type === "numberedListItem" ) {
148+ listIndex ++ ;
149+ } else {
150+ listIndex = 0 ;
151+ }
147152 const blockDOM = serializeBlock (
148153 editor ,
149154 block ,
150155 serializer ,
151- toExternalHTML ,
156+ listIndex ,
152157 options
153158 ) ;
154159 bg . contentDOM ! . appendChild ( blockDOM ) ;
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