Add toggle event for details elements.

See:
- https://html.spec.whatwg.org/multipage/interactive-elements.html#the-details-element ;
- https://html.spec.whatwg.org/multipage/indices.html#event-toggle ;
- https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details#attributes ;
- https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details#events .

CHANGES

@@ -1,3 +1,6 @@
+===== dev =====
+* Add toggle event for details elements.
+
 ===== 10.4.1 =====
 * Update to OCaml 5.2 (thanks to Kate Deplaix)
 

src/lib/eliom_content.client.mli

@@ -666,6 +666,7 @@ module Html : sig
       val onreturn : ('a, Dom_html.keyboardEvent) ev_unit
       val onchange : ('a, Dom_html.event) ev
       val onchange_select : ('a, Dom_html.event) ev
+      val ontoggle : ('a, Dom_html.toggleEvent) ev
     end
 
     module Attr : sig

src/lib/eliom_content_.client.ml

@@ -516,6 +516,14 @@ module Html = struct
         (fun () -> failwith (Printf.sprintf "Non element node (%s)" name))
         id
 
+    let get_unique_elt_details name elt : Dom_html.detailsElement Js.t =
+      Js.Opt.case
+        (Js.Opt.bind
+           (Dom_html.CoerceTo.element (get_unique_node name elt))
+           Dom_html.CoerceTo.details)
+        (fun () -> failwith (Printf.sprintf "Non element node (%s)" name))
+        id
+
     let scrollIntoView ?(bottom = false) elt =
       let elt = get_unique_elt "Css.background" elt in
       elt ## (scrollIntoView (Js.bool (not bottom)))
@@ -612,6 +620,10 @@ module Html = struct
       let onchange_select elt f =
         let elt = get_unique_elt_select "Ev.onchange_select" elt in
         elt##.onchange := bool_cb f
+
+      let ontoggle elt f =
+        let elt = get_unique_elt_details "Ev.ontoggle" elt in
+        elt##.ontoggle := bool_cb f
     end
 
     module Attr = struct

src/lib/eliom_content_core.client.ml

@@ -393,6 +393,7 @@ module Html = struct
     let a_onsubmit s = A.Unsafe.string_attrib "onsubmit" s
     let a_onsuspend s = A.Unsafe.string_attrib "onsuspend" s
     let a_ontimeupdate s = A.Unsafe.string_attrib "ontimeupdate" s
+    let a_ontoggle s = A.Unsafe.string_attrib "ontoggle" s
     let a_onundo s = A.Unsafe.string_attrib "onundo" s
     let a_onunload s = A.Unsafe.string_attrib "onunload" s
     let a_onvolumechange s = A.Unsafe.string_attrib "onvolumechange" s

src/lib/eliom_content_core.client.mli

@@ -388,6 +388,7 @@ module Html : sig
     val a_onsubmit : string -> [> `OnSubmit] A.attrib
     val a_onsuspend : string -> [> `OnSuspend] A.attrib
     val a_ontimeupdate : string -> [> `OnTimeUpdate] A.attrib
+    val a_ontoggle : string -> [> `OnToggle] A.attrib
     val a_onundo : string -> [> `OnUndo] A.attrib
     val a_onunload : string -> [> `OnUnload] A.attrib
     val a_onvolumechange : string -> [> `OnVolumeChange] A.attrib

src/lib/eliom_content_core.server.ml

@@ -411,6 +411,7 @@ module Html = struct
     let a_onsubmit s = A.Unsafe.string_attrib "onsubmit" s
     let a_onsuspend s = A.Unsafe.string_attrib "onsuspend" s
     let a_ontimeupdate s = A.Unsafe.string_attrib "ontimeupdate" s
+    let a_ontoggle s = A.Unsafe.string_attrib "ontoggle" s
     let a_onundo s = A.Unsafe.string_attrib "onundo" s
     let a_onunload s = A.Unsafe.string_attrib "onunload" s
     let a_onvolumechange s = A.Unsafe.string_attrib "onvolumechange" s

src/lib/eliom_content_core.server.mli

@@ -256,6 +256,7 @@ module Html : sig
     val a_onsubmit : string -> [> `OnSubmit] A.attrib
     val a_onsuspend : string -> [> `OnSuspend] A.attrib
     val a_ontimeupdate : string -> [> `OnTimeUpdate] A.attrib
+    val a_ontoggle : string -> [> `OnToggle] A.attrib
     val a_onundo : string -> [> `OnUndo] A.attrib
     val a_onunload : string -> [> `OnUnload] A.attrib
     val a_onvolumechange : string -> [> `OnVolumeChange] A.attrib