refactor: extract editor dom event helpers

rust/spikes/leptos-tiptap-spike/src/lib.rs

@@ -39,6 +39,7 @@ use editor_runtime::block_hover_state::{
 use editor_runtime::command_sync::{
     read_editor_snapshot, sync_editor_outputs, sync_persisted_editor_command,
 };
+use editor_runtime::dom_events::{event_target_matches_selector, target_element};
 use editor_runtime::dom_selection::{
     runtime_block_id_from_index, selection_payload, selection_summary, SelectionPayload,
 };
@@ -4843,22 +4844,6 @@ fn block_label_for_element(block: &Element) -> String {
     }
 }
 
-fn target_element(target: web_sys::EventTarget) -> Option<Element> {
-    target.clone().dyn_into::<Element>().ok().or_else(|| {
-        target
-            .dyn_into::<Node>()
-            .ok()
-            .and_then(|node| node.parent_element())
-    })
-}
-
-fn event_target_matches_selector(target: Option<web_sys::EventTarget>, selector: &str) -> bool {
-    target
-        .and_then(target_element)
-        .and_then(|element| element.closest(selector).ok().flatten())
-        .is_some()
-}
-
 fn current_target_html_element(event: &WheelEvent) -> Option<HtmlElement> {
     event.current_target()?.dyn_into::<HtmlElement>().ok()
 }