fix(ui): 可展开或已在界面上的文案不再弹出气泡

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/components/TipHost.tsx

@@ -33,41 +33,96 @@ function getVisibleText(root: Element): string {
   return norm(parts.join(" "));
 }
 
-/** 是否存在省略截断（含 line-clamp） */
-function isVisuallyTruncated(root: Element): boolean {
-  const nodes: Element[] = [root, ...Array.from(root.querySelectorAll("*"))];
-  for (const el of nodes) {
-    if (!(el instanceof HTMLElement)) continue;
-    if (el.clientWidth <= 0 && el.clientHeight <= 0) continue;
-    const st = getComputedStyle(el);
-    const ellipsis = st.textOverflow === "ellipsis" || el.classList.contains("truncate");
-    const nowrapHidden =
-      (st.overflowX === "hidden" || st.overflow === "hidden") &&
-      (st.whiteSpace === "nowrap" || st.whiteSpace === "pre");
-    const clampRaw = st.getPropertyValue("-webkit-line-clamp").trim();
-    const clamped = Boolean(clampRaw) && clampRaw !== "none";
-    if (ellipsis || nowrapHidden) {
-      if (el.scrollWidth > el.clientWidth + 1) return true;
-    }
-    if (clamped && el.scrollHeight > el.clientHeight + 1) return true;
+/** 原地展开全文控件：文案须是「展开/收起/展开全部…」，不含「展开 N 条回复」 */
+function isFullTextExpandControl(el: Element): boolean {
+  const t = (el.textContent || "").replace(/\s+/g, " ").trim();
+  if (!t) return false;
+  if (t === "展开" || t === "收起") return true;
+  if (/^(展开全部|查看全文|显示全部|显示全文)/.test(t)) return true;
+  return false;
+}
+
+/**
+ * 悬浮目标已能原地展开全文（有 data-expandable，或同级紧随展开按钮）。
+ * 此时气泡只是复述，不再弹出。
+ */
+function hasFullTextExpand(host: Element): boolean {
+  if (host.closest("[data-expandable]")) return true;
+  const scope = host.parentElement;
+  if (!scope) return false;
+  for (const btn of scope.querySelectorAll("button, [role='button']")) {
+    if (host.contains(btn)) continue;
+    if (btn.parentElement !== scope) continue;
+    const pos = host.compareDocumentPosition(btn);
+    if (!(pos & Node.DOCUMENT_POSITION_FOLLOWING)) continue;
+    if (isFullTextExpandControl(btn)) return true;
   }
   return false;
 }
 
+/** 单节点是否视觉截断（省略号 / nowrap / line-clamp） */
+function elementIsTruncated(el: HTMLElement): boolean {
+  if (el.clientWidth <= 0 && el.clientHeight <= 0) return false;
+  const st = getComputedStyle(el);
+  const ellipsis = st.textOverflow === "ellipsis" || el.classList.contains("truncate");
+  const nowrapHidden =
+    (st.overflowX === "hidden" || st.overflow === "hidden") &&
+    (st.whiteSpace === "nowrap" || st.whiteSpace === "pre");
+  const clampRaw = st.getPropertyValue("-webkit-line-clamp").trim();
+  const clamped = Boolean(clampRaw) && clampRaw !== "none";
+  if (ellipsis || nowrapHidden) {
+    if (el.scrollWidth > el.clientWidth + 1) return true;
+  }
+  if (clamped && el.scrollHeight > el.clientHeight + 1) return true;
+  return false;
+}
+
+/** 提示是否在补全某段被截断的文字（data-tip 须等于该节点全文） */
+function tipCompletesTruncation(root: Element, tip: string): boolean {
+  const nTip = norm(tip);
+  if (!nTip) return false;
+  const nodes: Element[] = [root, ...Array.from(root.querySelectorAll("*"))];
+  for (const el of nodes) {
+    if (!(el instanceof HTMLElement) || !elementIsTruncated(el)) continue;
+    const t = getVisibleText(el);
+    if (t && norm(t) === nTip) return true;
+  }
+  return false;
+}
+
+/** 去掉箭头等连接符后的词元；用于判断提示是否已画在界面上 */
+function tipTokens(s: string): string[] {
+  return s
+    .replace(/[→←↔\-–—>|/·•]/g, " ")
+    .split(/\s+/)
+    .map((x) => x.trim())
+    .filter(Boolean);
+}
+
+/** 可见文字已覆盖提示（含「甲 → 乙」vs 已画出的甲、乙） */
+function visibleCoversTip(visible: string, tip: string): boolean {
+  const nVis = norm(visible);
+  const nTip = norm(tip);
+  if (!nTip) return true;
+  if (nVis === nTip || nVis.includes(nTip)) return true;
+  const tokens = tipTokens(nTip);
+  if (tokens.length === 0) return false;
+  return tokens.every((tok) => nVis.includes(tok));
+}
+
 /**
  * 仅在以下场景显示气泡：
  * 1. 提示文案与可见内容不一致（且提示未完整出现在可见文字中）
  * 2. 停留目标无可见文字（图标等）
- * 3. 可见内容被省略截断，需要补全
+ * 3. 可见内容被省略截断，且 data-tip 正是那段全文
+ * 例外：目标已能原地展开全文时不弹出；提示词已全部出现在界面上时不弹出
  */
 function shouldShowTip(host: Element, tip: string): boolean {
-  if (isVisuallyTruncated(host)) return true;
+  if (hasFullTextExpand(host)) return false;
+  if (tipCompletesTruncation(host, tip)) return true;
   const visible = getVisibleText(host);
   if (!visible) return true;
-  const nTip = norm(tip);
-  const nVis = visible;
-  if (nTip === nVis) return false;
-  if (nVis.includes(nTip)) return false;
+  if (visibleCoversTip(visible, tip)) return false;
   return true;
 }