fix(web): reveal full content for truncated text

design-system/packages/ui/README.md

@@ -25,6 +25,9 @@ Use `OverflowText` for single-line, non-editable labels instead of local
 defaults to **fade-out truncation with an interaction marquee**: a background-independent
 gradient mask at the inline end, followed by scrolling on hover or keyboard focus.
 Both effects apply only when the text actually overflows. Short labels remain untouched.
+Overflowing labels also open a wrapping, selectable tooltip on hover or keyboard
+focus, including when motion is reduced. The tooltip uses the owning
+`data-overflow-trigger` control and groups its clipped text slots into one popup.
 Standard button, menu, navigation, card, selection, and disclosure text slots
 already use this primitive; consumers should not wrap those slots a second time.
 
@@ -55,17 +58,23 @@ Rich children default to fade to preserve the label's existing inline compositio
 Composite containers keep their icons/actions fixed and give each text slot its
 own `OverflowText`. Marquee measures and
 translates one inline text span; keep icons, badges, and action buttons outside
-it. Complete text stays in the accessibility tree. Clipped string/number labels
-get a native title unless the caller supplies one; rich content should use its
-own full-text tooltip or detail view. Do not use marquee as the sole way to
-access information on touch surfaces.
+it. Complete text stays in the accessibility tree. Plain-text arrays and rich
+labels use their complete rendered text in the tooltip. A supplied `title`
+overrides that text; `title=""` opts out when a surrounding native title owns the
+content. An explicit enclosing `Tooltip` suppresses automatic nested tooltips.
+Do not use marquee as the sole way to access information on touch surfaces.
 
 Multi-line descriptions should normally wrap. Editable fields, source code,
 structured paths that need to preserve their suffix, and native controls keep
 their appropriate text treatment instead of receiving a blanket fade rule.
 Mobile sheet/page titles and row descriptions wrap for touch access. Tooltips
 also wrap: a full-text fallback must not truncate its own content.
 
+For a compact multiline preview, use `<OverflowText as="p" lines={2}>` (or `div`
+to preserve the existing semantics). It measures vertical clipping as well as
+horizontal overflow and exposes the same full-text tooltip. Keep existing
+click-to-open details or expansion controls available on touch surfaces.
+
 The Web UI uses this contract in shell/navigation and search, workspace/session
 lists, model and context pickers, file/Git lists, settings, tool-card summaries,
 usage reports, and the Canvas SDK's truncating text/file labels. Remaining local

design-system/packages/ui/src/components/Listbox/Listbox.tsx

@@ -242,15 +242,15 @@ export const ListboxOption = forwardRef<HTMLButtonElement, ListboxOptionProps>(
           </span>
         )}
         <span className={styles.content} data-openbitfun-part="content">
-          <OverflowText className={styles.label} data-openbitfun-part="label">{children}</OverflowText>
+          <OverflowText className={styles.label} data-openbitfun-part="label" marqueeActive={active}>{children}</OverflowText>
           {description !== undefined && description !== null && (
             <span className={styles.description} data-openbitfun-part="description">
               {description}
             </span>
           )}
         </span>
         {metadata !== undefined && metadata !== null && (
-          <OverflowText className={styles.metadata} data-openbitfun-part="metadata">{metadata}</OverflowText>
+          <OverflowText className={styles.metadata} data-openbitfun-part="metadata" marqueeActive={active}>{metadata}</OverflowText>
         )}
         <span aria-hidden="true" className={styles.indicator} data-openbitfun-part="indicator">
           {indicator ?? (selected ? <Icon name="check-line" /> : null)}

design-system/packages/ui/src/components/Tooltip/Tooltip.module.css

@@ -32,7 +32,7 @@
   .content {
     position: relative;
     z-index: 1;
-    max-inline-size: var(--openbitfun-overlay-tooltip-max-inline-size);
+    max-inline-size: min(var(--openbitfun-overlay-tooltip-max-inline-size), calc(100vw - 16px));
     max-block-size: min(var(--openbitfun-overlay-tooltip-max-block-size), calc(100vh - 24px));
     overflow-y: auto;
     overscroll-behavior: contain;
@@ -46,7 +46,8 @@
     font-weight: var(--openbitfun-type-support-font-weight);
     line-height: var(--openbitfun-type-support-line-height);
     letter-spacing: var(--openbitfun-type-support-letter-spacing);
-    overflow-wrap: break-word;
+    white-space: pre-wrap;
+    overflow-wrap: anywhere;
     user-select: text;
     box-shadow: var(--openbitfun-shadow-sm);
     backdrop-filter: var(--openbitfun-effect-blur-base);

design-system/packages/ui/src/components/Tooltip/Tooltip.tsx

@@ -10,14 +10,16 @@ import {
   type ReactElement,
   type ReactNode,
   type Ref,
+  type RefObject,
 } from "react";
 import { classNames } from "../../internal/classNames";
+import { TooltipTriggerContext } from "../../internal/tooltipTriggerContext";
 import { Portal } from "../../overlay/Portal";
 import { useDesignSystem } from "../../overlay/useDesignSystem";
 import styles from "./Tooltip.module.css";
 
 export type TooltipPlacement = "top" | "bottom" | "left" | "right";
-export type TooltipTrigger = "hover" | "click" | "focus";
+export type TooltipTrigger = "hover" | "click" | "focus" | "hover-focus";
 
 const DEFAULT_TOOLTIP_DELAY_MS = 450;
 const INTERACTIVE_HIDE_DELAY_MS = 400;
@@ -27,6 +29,7 @@ const INTERACTIVE_HIDE_DELAY_MS = 400;
  */
 const WARM_WINDOW_MS = 300;
 let tooltipWarmUntil = 0;
+const activeTooltips = new WeakMap<Document, { id: string; hide: () => void }>();
 
 /** Cursor offset when followCursor: right and down so the tooltip never covers the cursor. */
 const CURSOR_OFFSET_X = 12;
@@ -36,7 +39,7 @@ const VIEWPORT_PADDING = 8;
 
 export interface TooltipProps {
   /** Single focusable trigger element the tooltip describes. */
-  children: ReactElement;
+  children?: ReactElement;
   className?: string;
   content: ReactNode;
   /** Open delay in milliseconds. Falls back to the provider value, then 450ms. */
@@ -49,6 +52,12 @@ export interface TooltipProps {
   /** Preferred side of the trigger; flips to the opposite side when space runs out. */
   placement?: TooltipPlacement;
   trigger?: TooltipTrigger;
+  /** Bind to an existing control without adding a wrapper or another tab stop. */
+  triggerRef?: RefObject<HTMLElement | null>;
+  /** Reveal a virtually focused option, for example in an aria-activedescendant listbox. */
+  active?: boolean;
+  /** Refresh lazy content or decline opening when the trigger no longer needs a tooltip. */
+  onBeforeShow?: () => boolean;
 }
 
 function assignRef<T>(ref: Ref<T> | undefined, value: T | null): void {
@@ -166,6 +175,9 @@ export function Tooltip({
   interactive = false,
   placement = "top",
   trigger = "hover",
+  triggerRef: externalTriggerRef,
+  active = false,
+  onBeforeShow,
 }: TooltipProps) {
   const designSystem = useDesignSystem();
   const resolvedDelayMs = delay ?? designSystem.tooltipDelay ?? DEFAULT_TOOLTIP_DELAY_MS;
@@ -181,13 +193,15 @@ export function Tooltip({
     ready: false,
   });
   const [mousePosition, setMousePosition] = useState<{ x: number; y: number } | null>(null);
-  const triggerRef = useRef<HTMLElement | null>(null);
+  const internalTriggerRef = useRef<HTMLElement | null>(null);
+  const triggerRef = externalTriggerRef ?? internalTriggerRef;
   const tooltipRef = useRef<HTMLDivElement | null>(null);
   const showTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const hideTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const latestMousePositionRef = useRef<{ x: number; y: number } | null>(null);
   const recalcFrameRef = useRef<number | null>(null);
   const instantRef = useRef(false);
+  const hideCurrentRef = useRef<() => void>(() => {});
 
   const calculatePosition = useCallback(() => {
     if (!tooltipRef.current) return;
@@ -226,8 +240,11 @@ export function Tooltip({
     });
   }, [calculatePosition]);
 
-  const showTooltip = useCallback((event?: ReactMouseEvent) => {
+  const showTooltip = useCallback((event?: Pick<MouseEvent, "clientX" | "clientY">) => {
     if (disabled) return;
+    const element = triggerRef.current;
+    if (!element || element.closest('[hidden], [aria-hidden="true"]')) return;
+    if (onBeforeShow && !onBeforeShow()) return;
     if (showTimeoutRef.current) clearTimeout(showTimeoutRef.current);
     if (hideTimeoutRef.current) {
       clearTimeout(hideTimeoutRef.current);
@@ -236,19 +253,24 @@ export function Tooltip({
     if (followCursor && event) {
       latestMousePositionRef.current = { x: event.clientX, y: event.clientY };
     }
-    const openDelay = trigger === "hover" && Date.now() < tooltipWarmUntil
+    const openDelay = (trigger === "hover" || trigger === "hover-focus") && Date.now() < tooltipWarmUntil
       ? 0
       : resolvedDelayMs;
     instantRef.current = openDelay === 0;
     showTimeoutRef.current = setTimeout(() => {
       showTimeoutRef.current = null;
+      if (!element.isConnected || element.closest('[hidden], [aria-hidden="true"]')) return;
+      if (onBeforeShow && !onBeforeShow()) return;
+      const previous = activeTooltips.get(element.ownerDocument);
+      if (previous && previous.id !== tooltipId) previous.hide();
+      activeTooltips.set(element.ownerDocument, { id: tooltipId, hide: () => hideCurrentRef.current() });
       if (followCursor) {
         setMousePosition(latestMousePositionRef.current);
       }
       setLayout((prev) => (prev.ready ? { ...prev, ready: false } : prev));
       setVisible(true);
     }, openDelay);
-  }, [disabled, followCursor, resolvedDelayMs, trigger]);
+  }, [disabled, followCursor, onBeforeShow, resolvedDelayMs, tooltipId, trigger, triggerRef]);
 
   const hideTooltip = useCallback(() => {
     if (showTimeoutRef.current) {
@@ -262,16 +284,20 @@ export function Tooltip({
     if (visible) {
       tooltipWarmUntil = Date.now() + WARM_WINDOW_MS;
     }
+    const ownerDocument = triggerRef.current?.ownerDocument;
+    if (ownerDocument && activeTooltips.get(ownerDocument)?.id === tooltipId) activeTooltips.delete(ownerDocument);
     setVisible(false);
     setLayout((prev) => (prev.ready ? { ...prev, ready: false } : prev));
     if (followCursor) {
       latestMousePositionRef.current = null;
       setMousePosition(null);
     }
-  }, [followCursor, visible]);
+  }, [followCursor, tooltipId, triggerRef, visible]);
+
+  useEffect(() => { hideCurrentRef.current = hideTooltip; }, [hideTooltip]);
 
   const scheduleHideTooltip = useCallback(() => {
-    if (!interactive) {
+    if (!interactive || !visible) {
       hideTooltip();
       return;
     }
@@ -281,7 +307,7 @@ export function Tooltip({
       hideTimeoutRef.current = null;
       hideTooltip();
     }, INTERACTIVE_HIDE_DELAY_MS);
-  }, [hideTooltip, interactive]);
+  }, [hideTooltip, interactive, visible]);
 
   useEffect(() => {
     setLayout((prev) => (prev.placement === placement ? prev : { ...prev, placement }));
@@ -314,26 +340,89 @@ export function Tooltip({
     };
   }, [visible, followCursor, scheduleCalculatePosition]);
 
-  useEffect(() => () => {
-    if (showTimeoutRef.current) clearTimeout(showTimeoutRef.current);
-    if (hideTimeoutRef.current) clearTimeout(hideTimeoutRef.current);
-  }, []);
+  useEffect(() => {
+    const ownerDocument = triggerRef.current?.ownerDocument;
+    return () => {
+      if (showTimeoutRef.current) clearTimeout(showTimeoutRef.current);
+      if (hideTimeoutRef.current) clearTimeout(hideTimeoutRef.current);
+      if (ownerDocument && activeTooltips.get(ownerDocument)?.id === tooltipId) activeTooltips.delete(ownerDocument);
+    };
+  }, [tooltipId, triggerRef]);
+
+  // Delegated text slots use the owning button/row for hover and keyboard focus.
+  // Keep the actual label in place so this also works inside portalled listboxes.
+  useEffect(() => {
+    const element = externalTriggerRef?.current;
+    if (!element) return;
+    const onEnter = (event: MouseEvent) => {
+      if (trigger === "hover" || trigger === "hover-focus") showTooltip(event);
+    };
+    const onLeave = () => {
+      if (trigger === "hover-focus" && element.contains(element.ownerDocument.activeElement)) return;
+      if (trigger === "hover" || trigger === "hover-focus") scheduleHideTooltip();
+    };
+    const onFocus = () => {
+      if (trigger === "focus" || trigger === "hover-focus") showTooltip();
+    };
+    const onBlur = (event: FocusEvent) => {
+      if (event.relatedTarget && element.contains(event.relatedTarget as Node)) return;
+      if (trigger === "focus" || trigger === "hover-focus") hideTooltip();
+    };
+    const onClick = () => {
+      if (trigger === "click" && !visible) showTooltip();
+      else hideTooltip();
+    };
+    element.addEventListener("mouseenter", onEnter);
+    element.addEventListener("mouseleave", onLeave);
+    element.addEventListener("focusin", onFocus);
+    element.addEventListener("focusout", onBlur);
+    element.addEventListener("click", onClick);
+    return () => {
+      element.removeEventListener("mouseenter", onEnter);
+      element.removeEventListener("mouseleave", onLeave);
+      element.removeEventListener("focusin", onFocus);
+      element.removeEventListener("focusout", onBlur);
+      element.removeEventListener("click", onClick);
+    };
+  }, [externalTriggerRef, hideTooltip, scheduleHideTooltip, showTooltip, trigger, visible]);
+
+  // A measured text slot can mount after focus has already reached its owner.
+  // Only replay focus/virtual activation on a transition, not on visibility updates.
+  const activationRef = useRef(false);
+  useEffect(() => {
+    const element = triggerRef.current;
+    const activated = !disabled && (active || Boolean(externalTriggerRef
+      && element?.contains(element.ownerDocument.activeElement)));
+    if (activated === activationRef.current) return;
+    activationRef.current = activated;
+    if (activated) showTooltip();
+    else hideTooltip();
+  }, [active, disabled, externalTriggerRef, hideTooltip, showTooltip, triggerRef]);
+
+  useEffect(() => {
+    const ownerDocument = triggerRef.current?.ownerDocument;
+    const onEscape = (event: KeyboardEvent) => {
+      if (event.key === "Escape") hideTooltip();
+    };
+    ownerDocument?.addEventListener("keydown", onEscape, true);
+    return () => ownerDocument?.removeEventListener("keydown", onEscape, true);
+  }, [hideTooltip, triggerRef]);
 
-  const childProps = children.props as Record<string, unknown>;
-  const childRef = (children as ReactElement & { ref?: Ref<HTMLElement> }).ref;
+  const childProps = (children?.props ?? {}) as Record<string, unknown>;
+  const childRef = (children as (ReactElement & { ref?: Ref<HTMLElement> }) | undefined)?.ref;
 
   const handleTriggerRef = useCallback((node: HTMLElement | null) => {
-    triggerRef.current = node;
+    internalTriggerRef.current = node;
     assignRef(childRef, node);
   }, [childRef]);
 
   const handleMouseEnter = (event: ReactMouseEvent) => {
-    if (trigger === "hover") showTooltip(event);
+    if (trigger === "hover" || trigger === "hover-focus") showTooltip(event);
     (childProps.onMouseEnter as ((event: ReactMouseEvent) => void) | undefined)?.(event);
   };
 
   const handleMouseLeave = (event: ReactMouseEvent) => {
-    if (trigger === "hover") scheduleHideTooltip();
+    if (trigger === "hover" || (trigger === "hover-focus" && !event.currentTarget.contains(event.currentTarget.ownerDocument.activeElement))) scheduleHideTooltip();
     (childProps.onMouseLeave as ((event: ReactMouseEvent) => void) | undefined)?.(event);
   };
 
@@ -361,18 +450,31 @@ export function Tooltip({
   };
 
   const handleFocus = (event: ReactFocusEvent) => {
-    if (trigger === "focus") showTooltip();
+    if (trigger === "focus" || trigger === "hover-focus") showTooltip();
     (childProps.onFocus as ((event: ReactFocusEvent) => void) | undefined)?.(event);
   };
 
   const handleBlur = (event: ReactFocusEvent) => {
-    if (trigger === "focus") hideTooltip();
+    if (trigger === "focus" || trigger === "hover-focus") hideTooltip();
     (childProps.onBlur as ((event: ReactFocusEvent) => void) | undefined)?.(event);
   };
 
   const isShown = visible && layout.ready;
 
-  const triggerElement = cloneElement(children as ReactElement<Record<string, unknown>>, {
+  useEffect(() => {
+    const element = externalTriggerRef?.current;
+    if (!element || !isShown) return;
+    const descriptions = new Set(element.getAttribute("aria-describedby")?.split(/\s+/).filter(Boolean));
+    descriptions.add(tooltipId);
+    element.setAttribute("aria-describedby", [...descriptions].join(" "));
+    return () => {
+      const remaining = element.getAttribute("aria-describedby")?.split(/\s+/).filter(id => id && id !== tooltipId) ?? [];
+      if (remaining.length) element.setAttribute("aria-describedby", remaining.join(" "));
+      else element.removeAttribute("aria-describedby");
+    };
+  }, [externalTriggerRef, isShown, tooltipId]);
+
+  const triggerElement = children ? cloneElement(children as ReactElement<Record<string, unknown>>, {
     ref: handleTriggerRef,
     onMouseEnter: handleMouseEnter,
     onMouseLeave: handleMouseLeave,
@@ -383,11 +485,13 @@ export function Tooltip({
     "aria-describedby": isShown
       ? [childProps["aria-describedby"], tooltipId].filter(Boolean).join(" ")
       : childProps["aria-describedby"],
-  } as Record<string, unknown>);
+  } as Record<string, unknown>) : null;
 
   return (
     <>
-      {triggerElement}
+      <TooltipTriggerContext.Provider value={!disabled}>
+        {triggerElement}
+      </TooltipTriggerContext.Provider>
       {visible && (
         <Portal ownerDocument={triggerRef.current?.ownerDocument}>
         <div

design-system/packages/ui/src/internal/tooltipTriggerContext.ts

@@ -0,0 +1,4 @@
+import { createContext } from "react";
+
+/** An explicit tooltip owns this subtree; text slots should not open another one. */
+export const TooltipTriggerContext = createContext(false);