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47 changes: 37 additions & 10 deletions src/browser/components/AgentListItem/AgentListItem.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ import { useDrag } from "react-dnd";
import { getEmptyImage } from "react-dnd-html5-backend";
import { SubAgentListItem } from "./SubAgentListItem";

import { Tooltip, TooltipTrigger, TooltipContent } from "../Tooltip/Tooltip";
import { Tooltip, TooltipTrigger, TooltipContent, TooltipIfPresent } from "../Tooltip/Tooltip";
import { Popover, PopoverContent, PopoverTrigger, PopoverAnchor } from "../Popover/Popover";
import { PositionedMenu, PositionedMenuItem } from "../PositionedMenu/PositionedMenu";
import {
Expand Down Expand Up @@ -481,6 +481,26 @@ function RegularAgentListItemInner(props: AgentListItemProps) {
const displayTitle = groupLabel ? `${groupLabel} · ${workspaceTitle}` : workspaceTitle;
const isEditing = editingWorkspaceId === workspaceId;

// Track whether the title span is actually clipped by `truncate` so we only
// attach a hover tooltip when the user can't already read the full name.
// Callback ref instead of useRef so we re-measure when the span mounts/unmounts
// (e.g. when toggling in/out of the rename input branch).
const [titleEl, setTitleEl] = useState<HTMLSpanElement | null>(null);
const [isTitleTruncated, setIsTitleTruncated] = useState(false);
useEffect(() => {
if (!titleEl) {
setIsTitleTruncated(false);
return;
}
const check = () => {
setIsTitleTruncated(titleEl.scrollWidth > titleEl.clientWidth);
};
check();
const observer = new ResizeObserver(check);
observer.observe(titleEl);
return () => observer.disconnect();
}, [titleEl, displayTitle]);

const linkSharingEnabled = useLinkSharingEnabled();
const [shareTranscriptOpen, setShareTranscriptOpen] = useState(false);
const [heartbeatModalOpen, setHeartbeatModalOpen] = useState(false);
Expand Down Expand Up @@ -1030,16 +1050,23 @@ function RegularAgentListItemInner(props: AgentListItemProps) {
{groupLabel && (
<span className="text-muted shrink-0 text-[12px] leading-6">{groupLabel}</span>
)}
<span
className={cn(
"min-w-0 flex-1 truncate text-left text-[14px] leading-6 transition-colors duration-200",
!isDisabled && "cursor-pointer",
(isGeneratingTitle || isPendingAutoTitle) && "italic",
titleColorClass
)}
<TooltipIfPresent
tooltip={isTitleTruncated ? displayTitle : undefined}
side="right"
align="center"
>
{workspaceTitle}
</span>
<span
ref={setTitleEl}
className={cn(
"min-w-0 flex-1 truncate text-left text-[14px] leading-6 transition-colors duration-200",
!isDisabled && "cursor-pointer",
(isGeneratingTitle || isPendingAutoTitle) && "italic",
titleColorClass
)}
>
{workspaceTitle}
</span>
</TooltipIfPresent>
</div>
)}

Expand Down