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feat(ui): collapsible thinking blocks with merged per-turn view and user toggle (#1273)

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* feat: add collapsible reasoning traces with animated labels

* feat(ui): redesign reasoning blocks with merged collapsible Thought view

- Replace per-part reasoning blocks with a single merged block per turn
  (VSCode Copilot pattern), controlled by new `groupReasoningBlocks` store flag
- `ReasoningTimelineBlock` redesigned: chevron toggle, summary preview on
  collapsed header, 'Thinking'/'Justification' label when expanded, BusyDots
  while streaming, auto-scroll to bottom during live streaming
- Short texts (< 120 chars) render inline without a toggle
- Summary now strips markdown and truncates at a word boundary with ellipsis
- New `MergedReasoningPart` component merges all reasoning parts for a message
  into one block at the position of the first reasoning part
- `defaultExpanded` prop lets callers override initial expand state
- Remove `.thinking-dot` CSS animation (replaced by BusyDots component)
- Fix reasoning markdown font-size: use `--text-markdown` instead of `--text-meta`

* refactor(ui): scope working phrases inside useAssistantStatus and simplify reasoning status

- Move WORKING_PHRASES array and getRandomWorkingPhrase() inside the hook
  so they are no longer exported (were only consumed by ReasoningPart which
  no longer needs them)
- Change the 'reasoning' activity status text from a random working phrase
  to the deterministic string 'thinking' — matches the new UI label

* test(ui): expand ReasoningPart tests for new collapsible and summary behavior

- Update baseline test to use text long enough to trigger the collapsible
  path (short texts now render inline) and assert on the correct aria markup
- Add test for 'Justification' label when pre-expanded via defaultExpanded
- Add test for 'Thinking' label for the thinking variant when expanded
- Add test verifying summary is a word-boundary-truncated excerpt ending with
  an ellipsis character

* i18n: rename 'Reasoning Traces' to 'Thinking Blocks' and add thought key

- Rename settings label from 'Show Reasoning Traces' → 'Show Thinking Blocks'
  across all supported locales (en, es, ko, pl, pt-BR, uk, zh-CN)
- Add `chat.reasoningTrace.thought` key to all locales (used by merged
  reasoning block header in completed state)

* feat(ui): add collapsibleThinkingBlocks setting with full persistence wiring

- New boolean store field `collapsibleThinkingBlocks` (default true) with
  `setCollapsibleThinkingBlocks` action; persisted to localStorage
- Threaded through DesktopSettings, SettingsPayload (API types), desktop
  persistence (sanitize + apply), web appearance persistence, appearance
  auto-save watcher, and server-side settings-helpers sanitize/format
- Server defaults to true when the field is absent in formatSettingsResponse
- MessageBody reads the flag: false → render reasoning as plain AssistantTextPart;
  true → existing collapsible/merged block path

* feat(settings): expose Collapsible Reasoning Blocks toggle in visual settings

Add a checkbox under the 'Show Thinking Blocks' row (visible only when
showReasoningTraces is enabled) that toggles the collapsibleThinkingBlocks
preference. Follows the existing toggle pattern: div role=button, keyboard
handler for Enter/Space, Checkbox primitive, aria-pressed attribute.

* i18n: revert showReasoningTraces label rename and add collapsibleThinkingBlocks strings

- Revert 'Show Reasoning Traces' → 'Show Thinking Blocks' rename (the
  collapsibleThinkingBlocks toggle is now a separate control, so the parent
  label stays as 'Reasoning Traces' for clarity)
- Add `collapsibleThinkingBlocks` / `collapsibleThinkingBlocksAria` strings
  across all seven supported locales (en, es, ko, pl, pt-BR, uk, zh-CN)

* test(server): add settings-helpers coverage for collapsibleThinkingBlocks

- Verify sanitizeSettingsUpdate accepts boolean true/false and rejects
  non-boolean values (string, number)
- Verify formatSettingsResponse forwards the value correctly for both true
  and false, and defaults to true when the field is absent

* fix(ui): respect defaultExpanded prop and remove dead alwaysShowActions from ReasoningTimelineBlock

The useEffect on [isStreaming] was firing on mount and immediately calling
setIsExpanded(false) (since isStreaming is false for completed blocks),
overriding any defaultExpanded={true} passed by callers. The fix uses a
prevIsStreamingRef so the effect only collapses the block on a true→false
transition and is a no-op on initial mount.

Also removes alwaysShowActions from ReasoningTimelineBlockProps — the new
header design always shows the chevron, making the prop obsolete. The prop
was already absent from the component destructuring (a dead type entry) and
was silently ignored at runtime. Removed it from ReasoningPartProps,
MergedReasoningPartProps, and the two call-sites in MessageBody as well.

* chore: remove unused reasoningpresentation module and test

* fix(ui): polish collapsible reasoning block UI

---------

Co-authored-by: Bohdan Triapitsyn <artmore@protonmail.com>
This commit is contained in:
Erman HAVUÇ
2026-05-16 17:20:16 +03:00
committed by GitHub
co-authored by Bohdan Triapitsyn
parent 00c112077d
commit e1977bbe63
28 changed files with 544 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files
packages/ui/src/components/chat/message/MessageBody.tsx
+41 -13
View File
@@ -4,7 +4,7 @@ import type { Part } from '@opencode-ai/sdk/v2';
import UserTextPart from './parts/UserTextPart';
import ToolPart from './parts/ToolPart';
import AssistantTextPart from './parts/AssistantTextPart';
import ReasoningPart from './parts/ReasoningPart';
import ReasoningPart, { MergedReasoningPart } from './parts/ReasoningPart';
import { MessageFilesDisplay } from '../FileAttachment';
import { TurnChangedFilesDropdown } from '../TurnChangedFilesDropdown';
import type { ToolPart as ToolPartType } from '@opencode-ai/sdk/v2';
@@ -46,6 +46,7 @@ import { useSessions } from '@/sync/sync-context';
import { useI18n } from '@/lib/i18n';
import { extractLoopbackUrls } from '@/lib/url';
const CONTAIN_LAYOUT_STYLE = { contain: 'layout' as const, transform: 'translateZ(0)' };
const MESSAGE_FOOTER_CONTAINER_STYLE = { containerType: 'inline-size' as const, containerName: 'message-footer' };
const INLINE_MESSAGE_ACTIONS_CLASS_NAME = 'mt-2 mb-1 flex items-center justify-start gap-1.5';
@@ -1015,6 +1016,8 @@ const AssistantMessageBody = React.memo(({
const [isPlanDialogOpen, setIsPlanDialogOpen] = React.useState(false);
const [isSavingPlan, setIsSavingPlan] = React.useState(false);
const chatRenderMode = useUIStore((state) => state.chatRenderMode);
const collapsibleThinkingBlocks = useUIStore((state) => state.collapsibleThinkingBlocks);
const groupReasoningBlocks = useUIStore((state) => state.groupReasoningBlocks);
const showSplitAssistantMessageActions = useUIStore((state) => state.showSplitAssistantMessageActions);
const isSortedRenderMode = chatRenderMode === 'sorted';
const isMiniChatSurface = chatSurfaceMode === 'mini-chat';
@@ -1506,7 +1509,16 @@ const AssistantMessageBody = React.memo(({
// Flat rendering: iterate parts in natural order.
// Group consecutive static tools (read, grep, glob, etc.) into compact rows.
// Expandable tools (bash, edit, task) get individual rows.
// Text and reasoning render inline at their natural position.
// Text renders inline at its natural position.
// Reasoning: all reasoning parts for this message are merged into ONE block
// at the position of the first reasoning part (VSCode Copilot pattern).
const flatReasoningParts = visibleParts.filter((p) => {
if (p.type !== 'reasoning') return false;
const a = activityByPart.get(p);
return a?.kind !== 'reasoning';
});
let reasoningMergeRendered = false;
let i = 0;
while (i < visibleParts.length) {
const part = visibleParts[i];
@@ -1553,17 +1565,8 @@ const AssistantMessageBody = React.memo(({
continue;
}
if (showReasoningTraces) {
if (isSortedRenderMode) {
rendered.push(
<ReasoningPart
key={`reasoning-${messageId}-${i}`}
part={part}
messageId={messageId}
onContentChange={onContentChange}
alwaysShowActions={alwaysShowMessageActions}
/>
);
} else {
if (!collapsibleThinkingBlocks) {
// Non-collapsible mode: render thinking blocks as plain text inline.
rendered.push(
<AssistantTextPart
key={`reasoning-${messageId}-${i}`}
@@ -1575,6 +1578,29 @@ const AssistantMessageBody = React.memo(({
onContentChange={onContentChange}
/>
);
} else if (groupReasoningBlocks) {
// Merged mode (VSCode pattern): one block for all reasoning parts.
if (!reasoningMergeRendered) {
reasoningMergeRendered = true;
rendered.push(
<MergedReasoningPart
key={`reasoning-merged-${messageId}`}
parts={flatReasoningParts}
messageId={messageId}
onContentChange={onContentChange}
/>
);
}
} else {
// Per-part mode: each reasoning block at its natural position.
rendered.push(
<ReasoningPart
key={`reasoning-${messageId}-${i}`}
part={part}
messageId={messageId}
onContentChange={onContentChange}
/>
);
}
}
i++;
@@ -1661,6 +1687,8 @@ const AssistantMessageBody = React.memo(({
animatedToolIdsLookup,
animateActivityRows,
chatRenderMode,
collapsibleThinkingBlocks,
groupReasoningBlocks,
collapsedPreviewCount,
expandedTools,
isMobile,
packages/ui/src/components/chat/message/parts/ReasoningPart.test.tsx
+98
View File
@@ -0,0 +1,98 @@
import React from 'react';
import { describe, expect, test } from 'bun:test';
import { renderToStaticMarkup } from 'react-dom/server';
import { I18nProvider } from '@/lib/i18n';
import { ReasoningTimelineBlock } from './ReasoningPart';
// A reasoning text whose summary (first 120 chars) fits in the header but
// whose expanded body content should only appear when the disclosure is open.
const LONG_REASONING =
'First thought about the task at hand and how to approach it carefully.\n' +
'This second line goes into much deeper detail about the internal reasoning ' +
'process that should remain hidden in the collapsed header view.';
// A long text that should render the collapsible header with a label
const LONG_JUSTIFICATION =
'Sorting by activity first because the active session needs immediate attention.\n' +
'Secondary sort by last updated timestamp ensures a stable deterministic ordering ' +
'when multiple sessions have the same activity state.';
describe('ReasoningTimelineBlock', () => {
test('renders reasoning traces behind an accessible collapsed disclosure by default', () => {
const markup = renderToStaticMarkup(
<I18nProvider>
<ReasoningTimelineBlock
text={LONG_REASONING}
variant="thinking"
blockId="reasoning-test"
showDuration={false}
/>
</I18nProvider>,
);
// Accessible toggle row is rendered
expect(markup).toContain('role="button"');
expect(markup).toContain('aria-expanded="false"');
expect(markup).toContain('aria-label="Expand reasoning trace"');
// Summary preview (beginning of text) is visible in the header
expect(markup).toContain('First thought');
// Expanded body (MarkdownRenderer) is NOT rendered while collapsed
expect(markup).not.toContain('data-message-text-export-source');
});
test('renders "Justification" label for justification variant when pre-expanded and not streaming', () => {
const markup = renderToStaticMarkup(
<I18nProvider>
<ReasoningTimelineBlock
text={LONG_JUSTIFICATION}
variant="justification"
blockId="justification-test"
showDuration={false}
defaultExpanded={true}
/>
</I18nProvider>,
);
// Label shown in expanded header should be "Justification" not "Thinking"
expect(markup).toContain('Justification');
expect(markup).not.toContain('Thinking');
});
test('renders "Thinking" label for thinking variant when pre-expanded and not streaming', () => {
const markup = renderToStaticMarkup(
<I18nProvider>
<ReasoningTimelineBlock
text={LONG_REASONING}
variant="thinking"
blockId="thinking-test"
showDuration={false}
defaultExpanded={true}
/>
</I18nProvider>,
);
// Label shown in expanded header should be "Thinking"
expect(markup).toContain('Thinking');
});
test('header summary is a truncated excerpt from the beginning', () => {
const markup = renderToStaticMarkup(
<I18nProvider>
<ReasoningTimelineBlock
text={LONG_REASONING}
variant="thinking"
blockId="reasoning-test"
showDuration={false}
/>
</I18nProvider>,
);
// Deep body content beyond 120 chars should be cut from the summary span
expect(markup).not.toContain('remain hidden in the collapsed header view');
// The ellipsis character marks that the text was truncated
expect(markup).toContain('…');
});
});
packages/ui/src/components/chat/message/parts/ReasoningPart.tsx
+240 -75
View File
@@ -3,10 +3,10 @@ import type { Part } from '@opencode-ai/sdk/v2';
import { cn } from '@/lib/utils';
import type { ContentChangeReason } from '@/hooks/useChatAutoFollow';
import { ScrollableOverlay } from '@/components/ui/ScrollableOverlay';
import { Icon } from "@/components/icon/Icon";
import type { IconName } from "@/components/icon/icons";
import { Icon } from '@/components/icon/Icon';
import { BusyDots } from './BusyDots';
import { useI18n } from '@/lib/i18n';
import { useUIStore } from '@/stores/useUIStore';
import { useDurationTickerNow } from './useDurationTicker';
import { MarkdownRenderer } from '../../MarkdownRenderer';
import { useStreamingTextThrottle } from '../../hooks/useStreamingTextThrottle';
@@ -14,14 +14,6 @@ type PartWithText = Part & { text?: string; content?: string; time?: { start?: n
export type ReasoningVariant = 'thinking' | 'justification';
const variantConfig: Record<
ReasoningVariant,
{ label: string; Icon: IconName }
> = {
thinking: { label: 'Thinking', Icon: 'brain-ai-3' },
justification: { label: 'Justification', Icon: 'chat-ai-3' },
};
const cleanReasoningText = (text: string): string => {
if (typeof text !== 'string' || text.trim().length === 0) {
return '';
@@ -35,39 +27,46 @@ const cleanReasoningText = (text: string): string => {
.trim();
};
const SUMMARY_MAX_CHARS = 80;
const INLINE_THRESHOLD = 120;
/** Strip common markdown syntax so the header preview reads as plain text. */
const stripMarkdown = (text: string): string =>
text
// Fenced code blocks → keep inner text on one line
.replace(/```[\w]*\n?([\s\S]*?)```/g, (_, inner: string) => inner.trim())
// Inline code
.replace(/`([^`]+)`/g, '$1')
// Bold + italic (*** / __)
.replace(/\*{1,3}([^*]+)\*{1,3}/g, '$1')
.replace(/_{1,3}([^_]+)_{1,3}/g, '$1')
// Headings (# ## ###)
.replace(/^#{1,6}\s+/gm, '')
// Links [label](url) → label
.replace(/\[([^\]]+)\]\([^)]*\)/g, '$1')
// Blockquote markers
.replace(/^>\s?/gm, '')
// Horizontal rules
.replace(/^[-*_]{3,}\s*$/gm, '')
// Remaining leading/trailing punctuation from stripped markers
.trim();
const getReasoningSummary = (text: string): string => {
if (!text) {
return '';
}
const trimmed = text.trim();
const newlineIndex = trimmed.indexOf('\n');
const periodIndex = trimmed.indexOf('.');
// Strip markdown, then collapse all whitespace runs into single spaces.
const flat = stripMarkdown(text).replace(/\s+/g, ' ').trim();
const cutoffCandidates = [
newlineIndex >= 0 ? newlineIndex : Infinity,
periodIndex >= 0 ? periodIndex : Infinity,
];
const cutoff = Math.min(...cutoffCandidates);
if (!Number.isFinite(cutoff)) {
return trimmed;
if (flat.length <= SUMMARY_MAX_CHARS) {
return flat;
}
return trimmed.substring(0, cutoff).trim();
};
const formatDuration = (start: number, end?: number, now: number = Date.now()): string => {
const duration = end ? end - start : now - start;
const seconds = duration / 1000;
const displaySeconds = seconds < 0.05 && end !== undefined ? 0.1 : seconds;
return `${displaySeconds.toFixed(1)}s`;
};
const LiveDuration: React.FC<{ start: number; end?: number; active: boolean }> = ({ start, end, active }) => {
const now = useDurationTickerNow(active, 250);
return <>{formatDuration(start, end, now)}</>;
// Cut at a word boundary before the limit, then append ellipsis.
const cut = flat.lastIndexOf(' ', SUMMARY_MAX_CHARS);
const end = cut > 0 ? cut : SUMMARY_MAX_CHARS;
return `${flat.substring(0, end).trimEnd()}…`;
};
type ReasoningTimelineBlockProps = {
@@ -79,7 +78,8 @@ type ReasoningTimelineBlockProps = {
showDuration?: boolean;
isStreaming?: boolean;
actions?: React.ReactNode;
alwaysShowActions?: boolean;
/** Override the initial expanded state. Defaults to `isStreaming`. */
defaultExpanded?: boolean;
};
export const ReasoningTimelineBlock: React.FC<ReasoningTimelineBlockProps> = ({
@@ -87,18 +87,44 @@ export const ReasoningTimelineBlock: React.FC<ReasoningTimelineBlockProps> = ({
variant,
onContentChange,
blockId,
time,
showDuration = true,
isStreaming = false,
actions,
alwaysShowActions = false,
defaultExpanded,
}) => {
const [isExpanded, setIsExpanded] = React.useState(false);
const { t } = useI18n();
const [isExpanded, setIsExpanded] = React.useState(defaultExpanded ?? isStreaming);
const contentId = React.useId();
const scrollRef = React.useRef<HTMLElement>(null);
// Track previous isStreaming so the effect only collapses on true→false
// transitions and does NOT override defaultExpanded on initial mount.
const prevIsStreamingRef = React.useRef(isStreaming);
const summary = React.useMemo(() => getReasoningSummary(text), [text]);
const { label, Icon: iconName } = variantConfig[variant];
const timeStart = typeof time?.start === 'number' && Number.isFinite(time.start) ? time.start : undefined;
const timeEnd = typeof time?.end === 'number' && Number.isFinite(time.end) ? time.end : undefined;
const toggleAriaLabel = isExpanded
? t('chat.reasoningTrace.collapseAria')
: t('chat.reasoningTrace.expandAria');
const handleToggle = React.useCallback(() => {
setIsExpanded((prev) => !prev);
onContentChange?.('structural');
}, [onContentChange]);
const handleKeyDown = React.useCallback((event: React.KeyboardEvent) => {
if (event.key === 'Enter' || event.key === ' ') {
event.preventDefault();
handleToggle();
}
}, [handleToggle]);
React.useEffect(() => {
const wasStreaming = prevIsStreamingRef.current;
prevIsStreamingRef.current = isStreaming;
// Auto-collapse only when streaming ends (true → false).
// Do not fire on mount so that defaultExpanded is respected.
if (wasStreaming && !isStreaming) {
setIsExpanded(false);
}
}, [isStreaming]);
React.useEffect(() => {
if (text.trim().length === 0) {
@@ -107,70 +133,136 @@ export const ReasoningTimelineBlock: React.FC<ReasoningTimelineBlockProps> = ({
onContentChange?.('structural');
}, [onContentChange, text]);
React.useEffect(() => {
if (isStreaming && isExpanded && scrollRef.current) {
scrollRef.current.scrollTop = scrollRef.current.scrollHeight;
}
}, [text, isStreaming, isExpanded]);
if (!text || text.trim().length === 0) {
return null;
}
const isShort = !isStreaming && text.trim().length < INLINE_THRESHOLD;
// Short blocks: render content directly without a collapsible toggle.
if (isShort) {
return (
<div className="my-1" data-reasoning-block-id={blockId} data-message-text-export-root="true">
<div data-message-text-export-source="true">
<MarkdownRenderer
content={text}
messageId={blockId}
isAnimated={false}
isStreaming={false}
variant="reasoning"
/>
</div>
{actions ? (
<div className="mt-2 mb-1 flex items-center justify-start gap-1.5" data-message-actions="true">
<div className="flex items-center gap-1.5" data-message-action-group="true">
{actions}
</div>
</div>
) : null}
</div>
);
}
return (
<div className="my-1" data-reasoning-block-id={blockId} data-message-text-export-root="true">
<div
role="button"
tabIndex={0}
aria-expanded={isExpanded}
aria-controls={contentId}
aria-label={toggleAriaLabel}
className={cn(
'group/tool flex items-center gap-2 pr-2 pl-px py-1.5 rounded-xl cursor-pointer'
'group/tool flex gap-1.5 pr-2 pl-px py-2 rounded-xl cursor-pointer items-center',
)}
onClick={() => setIsExpanded((prev) => !prev)}
onClick={handleToggle}
onKeyDown={handleKeyDown}
>
<div className="flex items-center gap-2 flex-shrink-0">
<div className="relative h-3.5 w-3.5 flex-shrink-0">
<div className="flex items-center gap-1.5 flex-shrink-0">
<div className="relative h-3.5 w-3.5 flex-shrink-0 cursor-pointer">
<div
className={cn(
'absolute inset-0 transition-opacity',
isExpanded && 'opacity-0',
!isExpanded && (alwaysShowActions ? 'opacity-0' : 'group-hover/tool:opacity-0')
!isExpanded && 'group-hover/tool:opacity-0',
)}
style={{ color: 'var(--tools-icon)' }}
>
<Icon name={iconName} className="h-3.5 w-3.5" />
<Icon name="brain-ai-3" className="h-3.5 w-3.5" />
</div>
<div
className={cn(
'absolute inset-0 transition-opacity flex items-center justify-center',
isExpanded && 'opacity-100',
!isExpanded && (alwaysShowActions ? 'opacity-100' : 'opacity-0 group-hover/tool:opacity-100')
!isExpanded && 'opacity-0 group-hover/tool:opacity-100',
)}
style={{ color: 'var(--tools-icon)' }}
>
{isExpanded ? <Icon name="arrow-down-s" className="h-3.5 w-3.5" /> : <Icon name="arrow-right-s" className="h-3.5 w-3.5" />}
</div>
</div>
<span className="typography-meta font-medium">{label}</span>
{isStreaming ? (
<span className="flex items-center gap-1 typography-meta font-medium" style={{ color: 'var(--tools-title)' }}>
<span>{t('chat.reasoningTrace.reasoning')}</span>
<BusyDots />
</span>
) : isExpanded ? (
<span
className="typography-meta font-medium"
style={{ color: 'var(--tools-title)' }}
>
{t(variant === 'justification' ? 'chat.reasoningTrace.justification' : 'chat.reasoningTrace.thinking')}
</span>
) : (
<span
className="typography-meta font-medium"
style={{ color: 'var(--tools-title)' }}
>
{t(variant === 'justification' ? 'chat.reasoningTrace.justification' : 'chat.reasoningTrace.thinking')}
</span>
)}
</div>
{(summary || (showDuration && typeof timeStart === 'number')) ? (
<div className="flex items-center gap-1 flex-1 min-w-0 typography-meta text-muted-foreground/70">
{summary ? <span className="flex-1 min-w-0 truncate">{summary}</span> : null}
{showDuration && typeof timeStart === 'number' ? (
<span className="relative flex-shrink-0 tabular-nums text-right">
<span className="text-muted-foreground/80 transition-opacity duration-150">
<LiveDuration
start={timeStart}
end={timeEnd}
active={typeof timeEnd !== 'number'}
/>
</span>
</span>
) : null}
</div>
) : null}
<div className="flex items-center gap-1 flex-1 min-w-0 typography-meta" style={{ color: 'var(--tools-description)' }}>
{!isStreaming && !isExpanded && summary ? (
<span
className="min-w-0 truncate typography-meta"
style={{ color: 'var(--tools-description)', opacity: 0.8 }}
title={summary}
>
{summary}
</span>
) : (
<span className="min-w-0 flex-1" />
)}
</div>
</div>
{/* Expanded content — left border matching ToolPart */}
{isExpanded && (
<div
className={cn(
'relative pr-2 pb-2 pt-2 pl-4'
)}
id={contentId}
className="relative ml-2 pl-3 pb-1 pt-0.5"
>
<span
aria-hidden="true"
className="pointer-events-none absolute left-0 top-0 bottom-0 w-px"
style={{ backgroundColor: 'var(--tools-border)' }}
/>
<ScrollableOverlay
ref={scrollRef}
as="div"
outerClassName="max-h-80"
className="p-0"
useScrollShadow
scrollShadowSize={36}
userIntentOnly
>
<div data-message-text-export-source="true">
<MarkdownRenderer
@@ -199,14 +291,12 @@ type ReasoningPartProps = {
part: Part;
onContentChange?: (reason?: ContentChangeReason) => void;
messageId: string;
alwaysShowActions?: boolean;
};
const ReasoningPart = React.memo(({
part,
onContentChange,
messageId,
alwaysShowActions = false,
}: ReasoningPartProps) => {
const chatRenderMode = useUIStore((state) => state.chatRenderMode);
const partWithText = part as PartWithText;
@@ -233,9 +323,84 @@ const ReasoningPart = React.memo(({
onContentChange={onContentChange}
blockId={part.id || `${messageId}-reasoning`}
time={time}
showDuration={chatRenderMode !== 'sorted'}
isStreaming={isStreaming}
alwaysShowActions={alwaysShowActions}
/>
);
});
type MergedReasoningPartProps = {
parts: Part[];
onContentChange?: (reason?: ContentChangeReason) => void;
messageId: string;
};
/**
* Renders ALL reasoning parts for a message as a single collapsible block,
* merging their text and spanning their combined time range.
* This matches the VSCode Copilot pattern of showing one "Thought" block per turn.
*/
export const MergedReasoningPart = React.memo(({
parts,
onContentChange,
messageId,
}: MergedReasoningPartProps) => {
const chatRenderMode = useUIStore((state) => state.chatRenderMode);
const mergedText = React.useMemo(() => {
return parts
.map((part) => {
const p = part as PartWithText;
return cleanReasoningText(p.text || p.content || '');
})
.filter((t) => t.length > 0)
.join('\n\n');
}, [parts]);
const mergedTime = React.useMemo(() => {
let earliestStart: number | undefined;
let latestEnd: number | undefined;
for (const part of parts) {
const time = (part as PartWithText).time;
if (typeof time?.start === 'number' && Number.isFinite(time.start)) {
if (earliestStart === undefined || time.start < earliestStart) {
earliestStart = time.start;
}
}
if (typeof time?.end === 'number' && Number.isFinite(time.end)) {
if (latestEnd === undefined || time.end > latestEnd) {
latestEnd = time.end;
}
}
}
return earliestStart !== undefined ? { start: earliestStart, end: latestEnd } : undefined;
}, [parts]);
const isStreaming = chatRenderMode === 'live' && parts.some(
(part) => typeof (part as PartWithText).time?.end !== 'number',
);
const throttledMergedText = useStreamingTextThrottle({
text: mergedText,
isStreaming,
identityKey: `${messageId}:reasoning-merged`,
});
const blockId = parts[0]?.id ?? `${messageId}-reasoning-merged`;
if (!throttledMergedText.trim()) {
return null;
}
return (
<ReasoningTimelineBlock
text={throttledMergedText}
variant="thinking"
onContentChange={onContentChange}
blockId={blockId}
time={mergedTime}
isStreaming={isStreaming}
/>
);
});
packages/ui/src/components/sections/openchamber/OpenChamberVisualSettings.tsx
+25
View File
@@ -249,6 +249,8 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
const directoryShowHidden = useDirectoryShowHidden();
const showReasoningTraces = useUIStore(state => state.showReasoningTraces);
const setShowReasoningTraces = useUIStore(state => state.setShowReasoningTraces);
const collapsibleThinkingBlocks = useUIStore(state => state.collapsibleThinkingBlocks);
const setCollapsibleThinkingBlocks = useUIStore(state => state.setCollapsibleThinkingBlocks);
const mermaidRenderingMode = useUIStore(state => state.mermaidRenderingMode);
const setMermaidRenderingMode = useUIStore(state => state.setMermaidRenderingMode);
@@ -1556,6 +1558,29 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
</div>
)}
{shouldShow('reasoning') && showReasoningTraces && (
<div
className="group flex cursor-pointer items-center gap-2 py-0.5"
role="button"
tabIndex={0}
aria-pressed={collapsibleThinkingBlocks}
onClick={() => setCollapsibleThinkingBlocks(!collapsibleThinkingBlocks)}
onKeyDown={(event) => {
if (event.key === ' ' || event.key === 'Enter') {
event.preventDefault();
setCollapsibleThinkingBlocks(!collapsibleThinkingBlocks);
}
}}
>
<Checkbox
checked={collapsibleThinkingBlocks}
onChange={setCollapsibleThinkingBlocks}
ariaLabel={t('settings.openchamber.visual.field.collapsibleThinkingBlocksAria')}
/>
<span className="typography-ui-label text-foreground">{t('settings.openchamber.visual.field.collapsibleThinkingBlocks')}</span>
</div>
)}
{shouldShow('stickyUserHeader') && (
<div
className="group flex cursor-pointer items-center gap-2 py-0.5"
packages/ui/src/components/ui/ScrollableOverlay.tsx
+3
View File
@@ -16,6 +16,7 @@ type ScrollableOverlayProps = React.HTMLAttributes<HTMLElement> & {
preventOverscroll?: boolean;
useScrollShadow?: boolean;
scrollShadowSize?: number;
userIntentOnly?: boolean;
/** Forwarded to the inner element (e.g. textarea). */
disabled?: boolean;
};
@@ -36,6 +37,7 @@ export const ScrollableOverlay = React.forwardRef<HTMLElement, ScrollableOverlay
preventOverscroll = false,
useScrollShadow = false,
scrollShadowSize,
userIntentOnly = false,
...rest
}, ref) => {
const containerRef = React.useRef<HTMLElement | null>(null);
@@ -91,6 +93,7 @@ export const ScrollableOverlay = React.forwardRef<HTMLElement, ScrollableOverlay
className={scrollbarClassName}
disableHorizontal={disableHorizontal}
observeMutations={observeMutations}
userIntentOnly={userIntentOnly}
/>
</div>
);