refactor: extract editor dom event helpers

rust/spikes/leptos-tiptap-spike/src/editor_runtime/dom_events.rs

@@ -0,0 +1,23 @@
+//! 编辑器 DOM event target 的窄 helper。
+//!
+//! 本模块只做 EventTarget -> Element 归一化和 selector 命中判断，
+//! 不处理编辑器状态、overlay 或命令分发。
+
+use wasm_bindgen::JsCast;
+use web_sys::{Element, EventTarget, Node};
+
+pub(crate) fn target_element(target: EventTarget) -> Option<Element> {
+    target.clone().dyn_into::<Element>().ok().or_else(|| {
+        target
+            .dyn_into::<Node>()
+            .ok()
+            .and_then(|node| node.parent_element())
+    })
+}
+
+pub(crate) fn event_target_matches_selector(target: Option<EventTarget>, selector: &str) -> bool {
+    target
+        .and_then(target_element)
+        .and_then(|element| element.closest(selector).ok().flatten())
+        .is_some()
+}

rust/spikes/leptos-tiptap-spike/src/editor_runtime/mod.rs

@@ -6,6 +6,7 @@ pub(crate) mod block_menu_document;
 pub(crate) mod block_menu_overlay;
 pub(crate) mod block_menu_legacy_html;
 pub(crate) mod command_sync;
+pub(crate) mod dom_events;
 pub(crate) mod dom_selection;
 pub(crate) mod editor_focus;
 pub(crate) mod history_safe_commands;

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()
 }