refactor: extract editor overlay helpers

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

@@ -25,8 +25,10 @@ use editor_runtime::command_sync::{
     read_editor_snapshot, sync_editor_outputs, sync_persisted_editor_command,
 };
 use editor_runtime::dom_selection::{
-    active_editor_text_selection, has_active_text_selection, node_is_within_root,
-    selection_summary,
+    has_active_text_selection, node_is_within_root, selection_summary,
+};
+use editor_runtime::overlays::{
+    floating_toolbar_anchor_from_selection, sync_text_selection_overlay, FloatingToolbarAnchor,
 };
 use editor_runtime::persistence::{
     load_persisted_document, normalize_identity_value, persist_document_state,
@@ -4785,12 +4787,6 @@ struct HoveredBlockState {
     height: f64,
 }
 
-#[derive(Clone, Debug, PartialEq)]
-struct FloatingToolbarAnchor {
-    top: f64,
-    left: f64,
-}
-
 #[derive(Clone, Debug, PartialEq)]
 struct ImageToolbarAnchor {
     top: f64,
@@ -5025,7 +5021,7 @@ pub(crate) fn editor_root_element() -> Option<Element> {
         .and_then(|document| document.query_selector(EDITOR_ROOT_SELECTOR).ok().flatten())
 }
 
-fn editor_stage_element() -> Option<Element> {
+pub(crate) fn editor_stage_element() -> Option<Element> {
     window()
         .and_then(|win| win.document())
         .and_then(|document| {
@@ -5338,23 +5334,6 @@ fn top_level_block_range(document: &Value, index: usize) -> Option<TiptapRange>
     None
 }
 
-fn floating_toolbar_anchor_from_selection() -> Option<FloatingToolbarAnchor> {
-    let selection = active_editor_text_selection()?;
-    let range = selection.get_range_at(0).ok()?;
-    let rect = range.get_bounding_client_rect();
-    if rect.width() <= 0.0 && rect.height() <= 0.0 {
-        return None;
-    }
-
-    let stage = editor_stage_element()?;
-    let stage_rect = stage.get_bounding_client_rect();
-
-    Some(FloatingToolbarAnchor {
-        top: (rect.top() - stage_rect.top()).max(60.0),
-        left: rect.left() + (rect.width() / 2.0) - stage_rect.left(),
-    })
-}
-
 fn slash_menu_anchor_style() -> String {
     const MENU_WIDTH: f64 = 316.0;
     const MENU_HEIGHT: f64 = 430.0;
@@ -6090,17 +6069,6 @@ fn open_block_menu_overlay(
     should_open
 }
 
-fn sync_text_selection_overlay(
-    set_text_selection_active: WriteSignal<bool>,
-    set_floating_toolbar_anchor: WriteSignal<Option<FloatingToolbarAnchor>>,
-) -> bool {
-    let toolbar_anchor = floating_toolbar_anchor_from_selection();
-    let has_text_selection = toolbar_anchor.is_some();
-    set_text_selection_active.set(has_text_selection);
-    set_floating_toolbar_anchor.set(toolbar_anchor);
-    has_text_selection
-}
-
 fn sync_editor_overlay_state(
     set_editor_focused: WriteSignal<bool>,
     set_text_selection_active: WriteSignal<bool>,