refactor: extract block menu html helpers

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

@@ -21,6 +21,9 @@ use web_sys::{
 };
 
 use editor_runtime::attachment_upload::dispatch_editor_upload_request;
+use editor_runtime::block_menu_legacy_html::{
+    duplicate_top_level_block_html, reorder_top_level_block_html,
+};
 use editor_runtime::command_sync::{
     read_editor_snapshot, sync_editor_outputs, sync_persisted_editor_command,
 };
@@ -4834,7 +4837,7 @@ struct BlockMenuLayout {
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
-enum DropPlacement {
+pub(crate) enum DropPlacement {
     Before,
     After,
 }
@@ -6229,38 +6232,6 @@ fn apply_html_update(
     }
 }
 
-fn duplicate_top_level_block_html(current_html: &str, index: usize) -> Result<String, String> {
-    let document = window()
-        .and_then(|win| win.document())
-        .ok_or_else(|| "浏览器 document 不可用".to_string())?;
-    let container = document
-        .create_element("div")
-        .map_err(|err| format!("创建 HTML 容器失败：{err:?}"))?;
-    container.set_inner_html(current_html);
-
-    let children = container.children();
-    let current = children
-        .item(index as u32)
-        .ok_or_else(|| format!("找不到第 {index} 个 HTML 顶层块"))?;
-    let cloned = current
-        .clone_node_with_deep(true)
-        .map_err(|err| format!("复制 HTML 块失败：{err:?}"))?
-        .dyn_into::<Element>()
-        .map_err(|_| "复制出的节点不是 Element".to_string())?;
-
-    if let Some(next_sibling) = children.item(index as u32 + 1) {
-        container
-            .insert_before(&cloned, Some(&next_sibling))
-            .map_err(|err| format!("插入复制块失败：{err:?}"))?;
-    } else {
-        container
-            .append_child(&cloned)
-            .map_err(|err| format!("追加复制块失败：{err:?}"))?;
-    }
-
-    Ok(container.inner_html())
-}
-
 fn top_level_block_boundary_position(document: &Value, index: usize, before: bool) -> Option<u32> {
     let content = document.get("content").and_then(Value::as_array)?;
     let mut position = 0_u32;
@@ -6343,65 +6314,6 @@ fn focus_top_level_block_start(editor: TiptapEditorHandle, index: usize) -> Resu
         .map_err(|err| format!("定位新块失败：{err}"))
 }
 
-fn reorder_top_level_block_html(
-    current_html: &str,
-    source: usize,
-    target: usize,
-    placement: DropPlacement,
-) -> Result<String, String> {
-    let document = window()
-        .and_then(|win| win.document())
-        .ok_or_else(|| "浏览器 document 不可用".to_string())?;
-    let container = document
-        .create_element("div")
-        .map_err(|err| format!("创建 HTML 容器失败：{err:?}"))?;
-    container.set_inner_html(current_html);
-
-    let initial_children = container.children();
-    let block_count = initial_children.length() as usize;
-    if source >= block_count || target >= block_count {
-        return Err("拖拽目标超出当前顶层块范围".to_string());
-    }
-
-    let current = initial_children
-        .item(source as u32)
-        .ok_or_else(|| format!("找不到第 {source} 个 HTML 顶层块"))?;
-    let moving = current
-        .clone_node_with_deep(true)
-        .map_err(|err| format!("复制拖拽块失败：{err:?}"))?
-        .dyn_into::<Element>()
-        .map_err(|_| "复制出的拖拽块不是 Element".to_string())?;
-
-    container
-        .remove_child(&current)
-        .map_err(|err| format!("移除原始拖拽块失败：{err:?}"))?;
-
-    let mut insert_at = match placement {
-        DropPlacement::Before => target,
-        DropPlacement::After => target + 1,
-    };
-    if source < insert_at {
-        insert_at = insert_at.saturating_sub(1);
-    }
-
-    let current_children = container.children();
-    let current_len = current_children.length() as usize;
-    if insert_at >= current_len {
-        container
-            .append_child(&moving)
-            .map_err(|err| format!("追加拖拽块失败：{err:?}"))?;
-    } else {
-        let next_sibling = current_children
-            .item(insert_at as u32)
-            .ok_or_else(|| format!("找不到第 {insert_at} 个 HTML 插入位置"))?;
-        container
-            .insert_before(&moving, Some(&next_sibling))
-            .map_err(|err| format!("插入拖拽块失败：{err:?}"))?;
-    }
-
-    Ok(container.inner_html())
-}
-
 fn p0_extensions() -> Vec<TiptapExtension> {
     vec![
         TiptapExtension::Document,