complete local markdown resource lifecycle contract

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

@@ -122,6 +122,10 @@ const SIDEBAR_TREE_JS: &str = r##"
       var stored = Number(window.localStorage.getItem(storageKey) || '');
       if (stored) applyWidth(stored);
     } catch (_) {}
+    resizer.addEventListener('wheel', function(event) {
+      event.preventDefault();
+      event.stopPropagation();
+    }, { passive: false });
     resizer.addEventListener('pointerdown', function(event) {
       if (event.button !== 0) return;
       event.preventDefault();
@@ -2429,6 +2433,7 @@ const SIDEBAR_TREE_JS: &str = r##"
     syncSidebarFileTreeSelection();
     schedulePendingLocalFolderRestoreFocus();
     restoreSidebarTreeTab();
+    refreshEditorLocalAttachmentExistence();
     document.documentElement.setAttribute('data-mnote-local-folder-watch-applied', 'projection');
     return true;
   }
@@ -8665,6 +8670,62 @@ const SIDEBAR_TREE_JS: &str = r##"
     }
   }
 
+  function localFileOpenRootUriFromHref(href) {
+    try {
+      var url = new URL(String(href || ''), window.location.origin);
+      if (url.pathname !== '/api/local-folder/files/open') return '';
+      return String(url.searchParams.get('rootUri') || '').trim();
+    } catch (_) {
+      return '';
+    }
+  }
+
+  function buildLocalFileStatusUrl(relativePath, rootUri) {
+    var effectiveRootUri = String(rootUri || currentRootUri() || '').trim();
+    if (!effectiveRootUri || !relativePath) return '';
+    var url = new URL('/api/local-folder/files/stat', window.location.origin);
+    url.searchParams.set('rootUri', effectiveRootUri);
+    url.searchParams.set('path', relativePath);
+    return url.toString();
+  }
+
+  function setEditorAttachmentMissingState(link, missing) {
+    if (!(link instanceof HTMLAnchorElement)) return;
+    var value = Boolean(missing);
+    if (value) {
+      link.setAttribute('data-mnote-attachment-missing', 'true');
+      link.classList.add('mnote-uploaded-attachment-missing');
+      link.setAttribute('aria-label', (link.textContent || '附件') + '（文件不存在）');
+    } else {
+      if (link.getAttribute('data-mnote-attachment-missing') !== 'true') return;
+      link.removeAttribute('data-mnote-attachment-missing');
+      link.classList.remove('mnote-uploaded-attachment-missing');
+      link.removeAttribute('aria-label');
+    }
+  }
+
+  async function refreshLocalAttachmentExistence(link) {
+    if (!(link instanceof HTMLAnchorElement)) return;
+    var href = link.getAttribute('href') || link.href || '';
+    var localFilePath = localFileOpenPathFromHref(href);
+    if (!localFilePath) return;
+    var statusUrl = buildLocalFileStatusUrl(localFilePath, localFileOpenRootUriFromHref(href));
+    if (!statusUrl) return;
+    try {
+      var response = await fetch(statusUrl, { headers: { accept: 'application/json' }, cache: 'no-store' });
+      var payload = await response.json().catch(function() { return null; });
+      var exists = Boolean(response.ok && payload && payload.ok === true && payload.result && payload.result.exists === true);
+      setEditorAttachmentMissingState(link, !exists);
+    } catch (_) {}
+  }
+
+  function refreshEditorLocalAttachmentExistence() {
+    document.querySelectorAll('.editor-surface .ProseMirror a[href*="/api/local-folder/files/open"]').forEach(function(link) {
+      if (link instanceof HTMLAnchorElement) void refreshLocalAttachmentExistence(link);
+    });
+  }
+  window.__mnoteRefreshEditorLocalAttachmentExistence = refreshEditorLocalAttachmentExistence;
+
   function fileNameFromPath(path) {
     var value = String(path || '').trim();
     return value.indexOf('/') >= 0 ? value.split('/').pop() : value;
@@ -8785,6 +8846,7 @@ const SIDEBAR_TREE_JS: &str = r##"
       || Boolean(localFilePath);
     if (!shouldEnhance) return;
     if (localFilePath && !isOnlyOfficeAttachmentHref(href)) {
+      void refreshLocalAttachmentExistence(link);
       return;
     }
     link.setAttribute('data-mnote-attachment-link', 'true');
@@ -10174,6 +10236,7 @@ const SIDEBAR_TREE_JS: &str = r##"
   window.addEventListener('tree:resync', function(event) {
     var payload = event.detail && event.detail.payload ? event.detail.payload : event.detail;
     if (renderSidebarSnapshot(payload)) {
+      refreshEditorLocalAttachmentExistence();
       document.documentElement.setAttribute('data-mnote-tree-live-applied', 'resync');
       return;
     }

rust/crates/mnote-web/src/ssr/styles.rs

@@ -256,6 +256,7 @@ a:hover {
   cursor: col-resize;
   position: relative;
   flex: 0 0 auto;
+  overscroll-behavior: none;
 }
 
 .mnote-sidebar-resizer::before {
@@ -1871,6 +1872,12 @@ body {
   text-decoration: none !important;
 }
 
+.document-shell .editor-surface .ProseMirror a[data-mnote-attachment-missing="true"] {
+  color: #9f1239 !important;
+  background: #fff1f2 !important;
+  box-shadow: inset 0 0 0 1px #fecdd3 !important;
+}
+
 .document-shell .editor-surface .ProseMirror a.mnote-uploaded-attachment-row::before,
 .document-shell .editor-surface .ProseMirror a[href*="/api/local-folder/files/open"]::before {
   content: "" !important;
@@ -1883,6 +1890,10 @@ body {
   box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.12) !important;
 }
 
+.document-shell .editor-surface .ProseMirror a[data-mnote-attachment-missing="true"]::before {
+  background: #e11d48 !important;
+}
+
 .document-shell .editor-surface .ProseMirror a.mnote-uploaded-attachment-word::before {
   background: #4f7df3;
 }