refactor: normalize filetree upload target plans

rust/crates/mnote-web/browser/filetree-runtime.js

@@ -371,6 +371,22 @@ function fileTreeUploadTargetFallback(detail, deps) {
   };
 }
 
+function normalizeFileTreeUploadTargetPlan(detail, plan) {
+  detail = detail || {};
+  plan = plan && typeof plan === 'object' ? Object.assign({}, plan) : {};
+  if (Object.prototype.hasOwnProperty.call(detail, 'targetRelativePath')) {
+    plan.targetRelativePath = String(detail.targetRelativePath || '');
+  }
+  if (detail.uploadIntent) {
+    plan.uploadIntent = String(detail.uploadIntent);
+  } else if (Object.prototype.hasOwnProperty.call(detail, 'targetRelativePath')) {
+    plan.uploadIntent = 'filetree.folder.drop';
+  } else if (!plan.uploadIntent) {
+    plan.uploadIntent = 'editor.markdown.attach';
+  }
+  return plan;
+}
+
 function fileTreeRowsForUploadPreflight(deps) {
   deps = deps || {};
   var fileTreeRowKind = typeof deps.fileTreeRowKind === 'function' ? deps.fileTreeRowKind : function(row) {
@@ -489,6 +505,7 @@ window.__mnoteFileTreeRuntime = {
   revealFileTreeAssetRow: revealFileTreeAssetRow,
   appendUploadedAssetRow: appendUploadedAssetRow,
   fileTreeUploadTargetFallback: fileTreeUploadTargetFallback,
+  normalizeFileTreeUploadTargetPlan: normalizeFileTreeUploadTargetPlan,
   fileTreeRowsForUploadPreflight: fileTreeRowsForUploadPreflight,
   fileTreeDocumentParentsForPreflight: fileTreeDocumentParentsForPreflight,
   fileTreeTargetChildrenForPreflight: fileTreeTargetChildrenForPreflight,

rust/crates/mnote-web/src/ssr/pages/layout.rs

@@ -3188,6 +3188,10 @@ const SIDEBAR_TREE_JS: &str = r##"
     }
     try {
       var plan = await preflightFileTreeUploadTarget(detail || {});
+      var normalizePlanRuntime = fileTreeRuntimeFunction('normalizeFileTreeUploadTargetPlan');
+      if (normalizePlanRuntime) {
+        return normalizePlanRuntime(detail || {}, plan);
+      }
       if (detail && Object.prototype.hasOwnProperty.call(detail, 'targetRelativePath')) {
         plan.targetRelativePath = String(detail.targetRelativePath || '');
       }