feat(openapi-sync): virtualize spec diff rendering + spec change block navigation (#7848)

* feat: implement side-by-side diff viewer for spec synchronization

- Added a new SpecDiffModal component to display differences between current and updated specs.
- Introduced buildRows function to flatten parsed diff data for rendering.
- Created DiffRow component for rendering individual rows in the diff view.
- Implemented highlightCache for efficient word-level diff highlighting.
- Enhanced user experience with navigation controls for changes and loading indicators.
- Added tests for buildRows functionality to ensure accurate diff representation.

* fix: update comments and dependencies for consistency in SpecDiffModal and StyledWrapper

- Added a comment in StyledWrapper.js to clarify the min-height requirement for Virtuoso's fixedItemHeight.
- Updated comment in highlightCache.js to reflect the change from character-level to word-level diff highlighting.
- Adjusted dependency array in SpecDiffModal.js to include cache for improved performance.
This commit is contained in:
Abhishek S Lal
2026-05-05 22:26:46 +05:30
committed by GitHub
parent 14b2fe1e65
commit 69417adcbf
7 changed files with 737 additions and 143 deletions

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@@ -0,0 +1,46 @@
import React from 'react';
/**
* One virtualized row in the spec diff. Renders the side-by-side cells
* (left line number, left code, right line number, right code) for a normal
* row, or a single full-width cell for a hunk header.
*
* Paired del+ins rows render via dangerouslySetInnerHTML so the <del>/<ins>
* markup from the word-level diff cache shows through. Solo rows render as
* React text children and let React handle escaping.
*/
const DiffRow = ({ row, active, cache }) => {
if (!row) return null; // guard: Virtuoso race on rapid open/close or theme switch
if (row.leftKind === 'hunk') {
return (
<div className="diff-row diff-row-hunk">
<div className="diff-cell-hunk">{row.leftText}</div>
</div>
);
}
const isChange = row.leftKind === 'del' && row.rightKind === 'ins';
const wd = isChange ? cache.getWordDiff(row.leftText, row.rightText) : null;
const renderContent = (text, html) =>
html !== null
? <span className="diff-content" dangerouslySetInnerHTML={{ __html: html }} />
: <span className="diff-content">{text}</span>;
return (
<div className={`diff-row ${active ? 'diff-row-focused' : ''}`}>
<div className={`diff-cell-num diff-kind-${row.leftKind}`}>{row.leftNum ?? ''}</div>
<div className={`diff-cell-code diff-kind-${row.leftKind}`}>
<span className="diff-prefix">{row.leftKind === 'del' ? '-' : ' '}</span>
{renderContent(row.leftText, wd ? wd.left : null)}
</div>
<div className={`diff-cell-num diff-kind-${row.rightKind}`}>{row.rightNum ?? ''}</div>
<div className={`diff-cell-code diff-kind-${row.rightKind}`}>
<span className="diff-prefix">{row.rightKind === 'ins' ? '+' : ' '}</span>
{renderContent(row.rightText, wd ? wd.right : null)}
</div>
</div>
);
};
export default React.memo(DiffRow);

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import { buildRows, wrapIndex } from '../buildRows';
// Helpers to construct fixture "parsed" data in the shape Diff2Html.parse()
// actually returns. Line types come from the LineType enum
// ('context' | 'insert' | 'delete'), NOT the CSSLineClass enum
// ('d2h-cntx' | 'd2h-ins' | 'd2h-del'). Verified at
// packages/bruno-app/public/static/diff2Html.js:3172.
const ctx = (text, oldNum, newNum) => ({
type: 'context',
content: ` ${text}`,
oldNumber: oldNum,
newNumber: newNum
});
const del = (text, oldNum) => ({ type: 'delete', content: `-${text}`, oldNumber: oldNum });
const ins = (text, newNum) => ({ type: 'insert', content: `+${text}`, newNumber: newNum });
const block = (header, lines) => ({ header, lines });
const file = (...blocks) => [{ blocks }];
describe('buildRows', () => {
test('1. empty/missing input → empty rows and changeBlocks', () => {
expect(buildRows(null)).toEqual({ rows: [], changeBlocks: [] });
expect(buildRows(undefined)).toEqual({ rows: [], changeBlocks: [] });
expect(buildRows([])).toEqual({ rows: [], changeBlocks: [] });
expect(buildRows([{ blocks: [] }])).toEqual({ rows: [], changeBlocks: [] });
});
test('2. all-context hunk → 0 change blocks, only ctx + hunk rows', () => {
const parsed = file(block('@@ -1,3 +1,3 @@', [ctx('a', 1, 1), ctx('b', 2, 2), ctx('c', 3, 3)]));
const { rows, changeBlocks } = buildRows(parsed);
expect(changeBlocks).toEqual([]);
expect(rows).toHaveLength(4); // 1 hunk + 3 ctx
expect(rows[0].leftKind).toBe('hunk');
expect(rows[1].leftKind).toBe('ctx');
expect(rows[1].leftText).toBe('a');
expect(rows[1].rightText).toBe('a');
expect(rows[1].leftNum).toBe(1);
expect(rows[1].rightNum).toBe(1);
});
test('3. pure-deletion run → del rows with empty placeholders on right', () => {
const parsed = file(
block('@@ -1,3 +1,1 @@', [ctx('keep', 1, 1), del('gone1', 2), del('gone2', 3)])
);
const { rows, changeBlocks } = buildRows(parsed);
expect(rows).toHaveLength(4); // 1 hunk + 1 ctx + 2 del rows
expect(rows[2].leftKind).toBe('del');
expect(rows[2].rightKind).toBe('empty');
expect(rows[2].leftText).toBe('gone1');
expect(rows[2].rightText).toBe('');
expect(rows[2].leftNum).toBe(2);
expect(rows[2].rightNum).toBeNull();
expect(rows[3].leftKind).toBe('del');
expect(rows[3].leftText).toBe('gone2');
// Two consecutive deletions form one block
expect(changeBlocks).toEqual([{ startIdx: 2, endIdx: 3 }]);
});
test('4. pure-insertion run → empty placeholders on left, ins on right', () => {
const parsed = file(
block('@@ -1,1 +1,3 @@', [ctx('keep', 1, 1), ins('new1', 2), ins('new2', 3)])
);
const { rows, changeBlocks } = buildRows(parsed);
expect(rows).toHaveLength(4);
expect(rows[2].leftKind).toBe('empty');
expect(rows[2].rightKind).toBe('ins');
expect(rows[2].leftText).toBe('');
expect(rows[2].rightText).toBe('new1');
expect(rows[2].leftNum).toBeNull();
expect(rows[2].rightNum).toBe(2);
expect(changeBlocks).toEqual([{ startIdx: 2, endIdx: 3 }]);
});
test('matched del+ins pair → paired row with leftKind=del, rightKind=ins', () => {
const parsed = file(block('@@ -1,1 +1,1 @@', [del('old', 1), ins('new', 1)]));
const { rows, changeBlocks } = buildRows(parsed);
expect(rows).toHaveLength(2); // hunk + 1 paired change row
// Paired row wears natural del/ins kinds — DiffRow detects this combo
// to run word-level diff. Matches GitHub's side-by-side convention
// (red left = deleted content, green right = inserted content).
expect(rows[1].leftKind).toBe('del');
expect(rows[1].rightKind).toBe('ins');
expect(rows[1].leftText).toBe('old');
expect(rows[1].rightText).toBe('new');
expect(rows[1].leftNum).toBe(1);
expect(rows[1].rightNum).toBe(1);
expect(changeBlocks).toEqual([{ startIdx: 1, endIdx: 1 }]);
});
test('5. multi-hunk diff → hunk rows insert correctly + blocks segment per change region', () => {
const parsed = file(
block('@@ -1,2 +1,2 @@', [ctx('a', 1, 1), del('b', 2), ins('B', 2)]),
block('@@ -10,2 +10,2 @@', [ctx('x', 10, 10), del('y', 11), ins('Y', 11)])
);
const { rows, changeBlocks } = buildRows(parsed);
// Block 1: hunk + ctx + 1 paired change = 3 rows
// Block 2: hunk + ctx + 1 paired change = 3 rows
expect(rows).toHaveLength(6);
expect(rows[0].leftKind).toBe('hunk');
expect(rows[3].leftKind).toBe('hunk');
// Two distinct change blocks (separated by hunk header reset)
expect(changeBlocks).toEqual([
{ startIdx: 2, endIdx: 2 },
{ startIdx: 5, endIdx: 5 }
]);
});
test('6. REGRESSION: change-block count matches expected counts for 3 fixture shapes', () => {
// The old DOM walker counted contiguous DOM rows containing
// .d2h-ins/.d2h-del/.d2h-change as one block. The new row-list walker
// must produce the same count for the same diff shape.
// Fixture A: small diff, one contiguous change region
const fixtureA = file(
block('@@ -1,4 +1,4 @@', [ctx('a', 1, 1), del('b', 2), ins('B', 2), ctx('c', 3, 3)])
);
expect(buildRows(fixtureA).changeBlocks).toHaveLength(1);
// Fixture B: medium, two separate change regions in one hunk
const fixtureB = file(
block('@@ -1,7 +1,7 @@', [
ctx('a', 1, 1),
del('b', 2),
ins('B', 2),
ctx('c', 3, 3),
ctx('d', 4, 4),
del('e', 5),
ins('E', 5),
ctx('f', 6, 6)
])
);
expect(buildRows(fixtureB).changeBlocks).toHaveLength(2);
// Fixture C: multi-hunk with adjacent del+ins runs that form a single
// contiguous change region per hunk
const fixtureC = file(
block('@@ -1,3 +1,4 @@', [ctx('a', 1, 1), del('b', 2), ins('B', 2), ins('C', 3)]),
block('@@ -10,4 +11,4 @@', [
ctx('x', 10, 11),
del('y', 11),
del('z', 12),
ins('Y', 12),
ins('Z', 13)
])
);
expect(buildRows(fixtureC).changeBlocks).toHaveLength(2);
});
});
describe('wrapIndex', () => {
test('7. wrap-around modulo handles negative and overflow', () => {
expect(wrapIndex(0, 5)).toBe(0);
expect(wrapIndex(4, 5)).toBe(4);
expect(wrapIndex(5, 5)).toBe(0);
expect(wrapIndex(6, 5)).toBe(1);
expect(wrapIndex(-1, 5)).toBe(4);
expect(wrapIndex(-6, 5)).toBe(4);
expect(wrapIndex(0, 0)).toBe(0);
expect(wrapIndex(3, 0)).toBe(0);
});
});

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/**
* Flatten Diff2Html's parsed unified-diff output into what the virtualized
* renderer needs:
*
* rows[] — one entry per visual row in the side-by-side layout
* (exactly what Virtuoso renders)
* changeBlocks[] — index ranges into rows[], drives Next/Prev navigation
*
* Row shape:
* { leftNum, leftText, leftKind, rightNum, rightText, rightKind }
* *Kind ∈ 'ctx' | 'del' | 'ins' | 'empty' | 'hunk'
*
* When a row has leftKind='del' AND rightKind='ins', DiffRow recognises it
* as a matched change and renders word-level highlights.
*/
// Diff2Html's parse() leaves the leading '+' / '-' / ' ' on each line's
// content. DiffRow renders that marker in its own styled span, so we strip
// it from the displayed text.
const stripLeadingMarker = (content) => (content || '').replace(/^[+\- ]/, '');
// Row factories — keep the row object shape consistent in one place.
const hunkRow = (header) => ({
leftKind: 'hunk',
rightKind: 'hunk',
leftText: header,
rightText: header,
leftNum: null,
rightNum: null
});
const contextRow = (line) => ({
leftKind: 'ctx',
rightKind: 'ctx',
leftText: stripLeadingMarker(line.content),
rightText: stripLeadingMarker(line.content),
leftNum: line.oldNumber ?? null,
rightNum: line.newNumber ?? null
});
const pairedChangeRow = (deletion, insertion) => ({
leftKind: 'del',
rightKind: 'ins',
leftText: stripLeadingMarker(deletion.content),
rightText: stripLeadingMarker(insertion.content),
leftNum: deletion.oldNumber ?? null,
rightNum: insertion.newNumber ?? null
});
const soloDeletionRow = (deletion) => ({
leftKind: 'del',
rightKind: 'empty',
leftText: stripLeadingMarker(deletion.content),
rightText: '',
leftNum: deletion.oldNumber ?? null,
rightNum: null
});
const soloInsertionRow = (insertion) => ({
leftKind: 'empty',
rightKind: 'ins',
leftText: '',
rightText: stripLeadingMarker(insertion.content),
leftNum: null,
rightNum: insertion.newNumber ?? null
});
export function buildRows(parsed) {
const rows = [];
if (!parsed || !Array.isArray(parsed) || parsed.length === 0) {
return { rows, changeBlocks: [] };
}
// Spec sync always produces a single-file diff; ignore any others.
const hunks = parsed[0]?.blocks || [];
// ── Pass 1: flatten each hunk's lines into visual rows ──
for (const hunk of hunks) {
if (hunk.header) rows.push(hunkRow(hunk.header));
const lines = hunk.lines || [];
let i = 0;
while (i < lines.length) {
const line = lines[i];
if (line.type === 'context') {
rows.push(contextRow(line));
i++;
continue;
}
// Collect the next run of deletions, then the run of insertions that
// immediately follows. Pair them 1:1 into side-by-side change rows;
// any leftovers spill as solo rows.
//
// e.g. del A, del B, del C, ins X, ins Y
// → (A ↔ X) (B ↔ Y) (C ↔ ∅)
const deletions = [];
while (i < lines.length && lines[i].type === 'delete') {
deletions.push(lines[i]);
i++;
}
const insertions = [];
while (i < lines.length && lines[i].type === 'insert') {
insertions.push(lines[i]);
i++;
}
const pairCount = Math.min(deletions.length, insertions.length);
for (let p = 0; p < pairCount; p++) {
rows.push(pairedChangeRow(deletions[p], insertions[p]));
}
for (let p = pairCount; p < deletions.length; p++) {
rows.push(soloDeletionRow(deletions[p]));
}
for (let p = pairCount; p < insertions.length; p++) {
rows.push(soloInsertionRow(insertions[p]));
}
// Safety: skip unknown line types so the outer loop can't stall.
if (
i < lines.length
&& lines[i].type !== 'context'
&& lines[i].type !== 'delete'
&& lines[i].type !== 'insert'
) {
i++;
}
}
}
// ── Pass 2: group consecutive changed rows into navigation blocks ──
// Hunk headers and context rows each close the currently-active block.
const changeBlocks = [];
let currentBlock = null;
rows.forEach((row, idx) => {
const isChanged = row.leftKind === 'del' || row.rightKind === 'ins';
if (row.leftKind === 'hunk' || !isChanged) {
currentBlock = null;
return;
}
if (currentBlock) {
currentBlock.endIdx = idx;
} else {
currentBlock = { startIdx: idx, endIdx: idx };
changeBlocks.push(currentBlock);
}
});
return { rows, changeBlocks };
}
// Wrap-around modulo so Prev at block 0 jumps to the last block. JS's
// native `%` returns -1 for `-1 % 5`; the double-mod gives 4. Clamp to 0
// when there are no blocks at all.
export function wrapIndex(idx, length) {
if (length <= 0) return 0;
return ((idx % length) + length) % length;
}

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import { escapeHtml } from 'utils/response';
// Skip word-level diff on lines longer than this (Diff2Html default is 10k).
const MAX_HIGHLIGHT_LENGTH = 5000;
export function createHighlightCache() {
// Map of `${left}\x00${right}` → { left, right } HTML. The null byte separator safely delimits the pair.
const cache = new Map();
return {
// Word-level diff for a paired del+ins row. Returns { left, right } HTML
// with <del>/<ins> around changed words.
getWordDiff(leftContent, rightContent) {
const key = `${leftContent}\x00${rightContent}`;
const hit = cache.get(key);
if (hit !== undefined) return hit; // cache hit → skip the ~1-3ms recomputation
// Diff2Html ships as a global UMD bundle loaded from /public/static.
const D2H = typeof window !== 'undefined' && window.Diff2Html;
let result;
if (D2H && typeof D2H.diffHighlight === 'function') {
try {
// diffHighlight's internal parser expects each line to start with a
// prefix char (-, +, space) and strips it. We prepend '-' / '+' here
// purely to satisfy that input shape.
const out = D2H.diffHighlight(
`-${leftContent}`,
`+${rightContent}`,
false, // isCombined: standard two-way diff, not a git combined diff
{ matching: 'words', maxLineLengthHighlight: MAX_HIGHLIGHT_LENGTH }
);
// out.oldLine/newLine.content already has the <del>/<ins> markup we want.
result = {
left: out?.oldLine?.content ?? escapeHtml(leftContent),
right: out?.newLine?.content ?? escapeHtml(rightContent)
};
} catch {
// Malformed input or Diff2Html internal error — fall back so the row still renders.
result = { left: escapeHtml(leftContent), right: escapeHtml(rightContent) };
}
} else {
// Diff2Html bundle hasn't loaded (test env, CSP, etc.) — escape only.
result = { left: escapeHtml(leftContent), right: escapeHtml(rightContent) };
}
cache.set(key, result); // stored so Virtuoso remounts of this same row hit cache
return result;
},
// Empties the cache when a fresh diff replaces the current one.
clear() {
cache.clear();
}
};
}

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@@ -1,13 +1,21 @@
import { useRef, useEffect, useState } from 'react';
import { useTheme } from 'providers/Theme/index';
import { IconLoader2 } from '@tabler/icons';
import { Virtuoso } from 'react-virtuoso';
import { IconLoader2, IconChevronUp, IconChevronDown } from '@tabler/icons';
import Modal from 'components/Modal';
import StatusBadge from 'ui/StatusBadge';
import { buildRows, wrapIndex } from './buildRows';
import { createHighlightCache } from './highlightCache';
import DiffRow from './DiffRow';
const SpecDiffModal = ({ specDrift, onClose }) => {
const diffRef = useRef(null);
const { displayedTheme } = useTheme();
const virtuosoRef = useRef(null);
const [cache] = useState(createHighlightCache);
const [isRendering, setIsRendering] = useState(true);
const [parseError, setParseError] = useState(false);
const [rows, setRows] = useState([]);
const [changeBlocks, setChangeBlocks] = useState([]);
const [currentIndex, setCurrentIndex] = useState(0);
const addedCount = specDrift?.added?.length || 0;
const modifiedCount = specDrift?.modified?.length || 0;
@@ -17,54 +25,119 @@ const SpecDiffModal = ({ specDrift, onClose }) => {
? `v${specDrift.storedVersion || '?'} → v${specDrift.newVersion}`
: null;
// Parse + build row list, deferred via setTimeout so the spinner paints first.
useEffect(() => {
const { Diff2Html } = window;
if (!diffRef?.current || !Diff2Html || !specDrift?.unifiedDiff) {
if (!Diff2Html || !specDrift?.unifiedDiff) {
setIsRendering(false);
return;
}
setIsRendering(true);
const diffHtml = Diff2Html.html(specDrift.unifiedDiff, {
drawFileList: false,
matching: 'lines',
outputFormat: 'side-by-side',
synchronisedScroll: true,
highlight: true,
renderNothingWhenEmpty: false,
colorScheme: displayedTheme
setParseError(false);
// setTimeout yields to the browser so the spinner paints before parse blocks.
const timer = setTimeout(() => {
try {
const parsed = Diff2Html.parse(specDrift.unifiedDiff, {
outputFormat: 'side-by-side',
matching: 'lines'
});
const built = buildRows(parsed);
setRows(built.rows);
setChangeBlocks(built.changeBlocks);
setCurrentIndex(0);
cache.clear();
} catch (err) {
console.error('SpecDiffModal: failed to parse unified diff', err);
setParseError(true);
}
setIsRendering(false);
}, 0);
return () => clearTimeout(timer);
}, [specDrift?.unifiedDiff, cache]);
const goToChange = (idx) => {
if (!changeBlocks.length) return;
const nextIndex = wrapIndex(idx, changeBlocks.length);
const targetBlock = changeBlocks[nextIndex];
const fromBlock = changeBlocks[currentIndex];
const gap = fromBlock ? Math.abs(targetBlock.startIdx - fromBlock.startIdx) : 0;
virtuosoRef.current?.scrollToIndex({
index: targetBlock.startIdx,
align: 'center',
behavior: gap > 500 ? 'auto' : 'smooth'
});
// Safe: Diff2Html is loaded from a local static bundle (public/static/diff2Html.js)
diffRef.current.innerHTML = diffHtml;
setIsRendering(false);
}, [displayedTheme, specDrift?.unifiedDiff]);
setCurrentIndex(nextIndex);
};
const activeBlock = changeBlocks[currentIndex] || null;
const renderItem = (index) => (
<DiffRow
row={rows[index]}
active={!!activeBlock && index >= activeBlock.startIdx && index <= activeBlock.endIdx}
cache={cache}
/>
);
const showNav = !!specDrift?.unifiedDiff && !parseError;
const changeCount = changeBlocks.length;
const counterLabel
= changeCount === 0 ? 'No changes' : `${currentIndex + 1} of ${changeCount} changes`;
return (
<Modal
size="xl"
title="Spec Diff"
hideFooter
handleCancel={onClose}
>
<Modal size="xl" title="Spec Diff" hideFooter handleCancel={onClose}>
<div className="spec-diff-modal">
<div className="spec-diff-badges">
{modifiedCount > 0 && <StatusBadge status="warning">Updated: {modifiedCount}</StatusBadge>}
{addedCount > 0 && <StatusBadge status="success">Added: {addedCount}</StatusBadge>}
{removedCount > 0 && <StatusBadge status="danger">Removed: {removedCount}</StatusBadge>}
{versionLabel && <StatusBadge>{versionLabel}</StatusBadge>}
</div>
<div className="spec-diff-header">
<div className="spec-diff-header-left">
<div className="spec-diff-badges">
<div>Endpoint Changes:</div>
{modifiedCount > 0 && <StatusBadge status="warning">Updated: {modifiedCount}</StatusBadge>}
{addedCount > 0 && <StatusBadge status="success">Added: {addedCount}</StatusBadge>}
{removedCount > 0 && <StatusBadge status="danger">Removed: {removedCount}</StatusBadge>}
{versionLabel && <StatusBadge>{versionLabel}</StatusBadge>}
</div>
<p className="spec-diff-subtitle">
{specDrift?.storedSpecMissing
? 'The current spec file is missing. The full remote spec is shown below.'
: 'Side-by-side diff of your current spec vs the updated spec from the spec URL.'}
</p>
<p className="spec-diff-subtitle">
{specDrift?.storedSpecMissing
? 'The current spec file is missing. The full remote spec is shown below.'
: 'Side-by-side diff of your current spec vs the updated spec from the spec URL.'}
</p>
</div>
{showNav && (
<div className="spec-diff-nav">
<span className="spec-diff-nav-counter">{counterLabel}</span>
<div className="spec-diff-nav-buttons">
<button
type="button"
className="spec-diff-nav-btn"
onClick={() => goToChange(currentIndex - 1)}
disabled={changeCount === 0}
title="Previous change"
>
<IconChevronUp size={14} strokeWidth={1.75} /> Previous
</button>
<button
type="button"
className="spec-diff-nav-btn"
onClick={() => goToChange(currentIndex + 1)}
disabled={changeCount === 0}
title="Next change"
>
<IconChevronDown size={14} strokeWidth={1.75} /> Next
</button>
</div>
</div>
)}
</div>
<div className="spec-diff-body">
<div className="text-diff-container">
{specDrift?.unifiedDiff ? (
<>
<div className="diff-column-headers">
<span className="diff-column-label">{specDrift?.storedSpecMissing ? 'Current Spec (missing)' : 'Current Spec'}</span>
<span className="diff-column-label">
{specDrift?.storedSpecMissing ? 'Current Spec (missing)' : 'Current Spec'}
</span>
<span className="diff-column-label">Updated Spec</span>
</div>
{isRendering && (
@@ -73,7 +146,25 @@ const SpecDiffModal = ({ specDrift, onClose }) => {
<span>Loading diff...</span>
</div>
)}
<div ref={diffRef} style={{ display: isRendering ? 'none' : 'block' }}></div>
{!isRendering && parseError && (
<div className="text-diff-empty">
Diff couldn&apos;t be rendered. Please file an issue with the spec.
</div>
)}
{!isRendering && !parseError && rows.length > 0 && (
<Virtuoso
ref={virtuosoRef}
totalCount={rows.length}
itemContent={renderItem}
// Must match .diff-row min-height in OpenAPISyncTab/StyledWrapper.js
fixedItemHeight={18}
increaseViewportBy={400}
style={{ height: '100%' }}
/>
)}
{!isRendering && !parseError && rows.length === 0 && (
<div className="text-diff-empty">No changes to display.</div>
)}
</>
) : (
<div className="text-diff-empty">No text diff available.</div>

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@@ -1503,143 +1503,154 @@ const StyledWrapper = styled.div`
.text-diff-container {
border-radius: ${(props) => props.theme.border.radius.sm};
border: 1px solid ${(props) => props.theme.border.border1};
overflow: auto;
overflow: hidden;
display: flex;
flex-direction: column;
background: ${(props) => props.theme.bg};
.diff-column-headers {
display: flex;
display: grid;
grid-template-columns: 9ch 1fr 9ch 1fr;
border-bottom: 1px solid ${(props) => props.theme.border.border1};
position: sticky;
top: 0;
z-index: 2;
background: ${(props) => props.theme.bg};
flex-shrink: 0;
.diff-column-label {
flex: 1;
padding: 6px 12px;
font-size: 12px;
font-weight: 600;
color: ${(props) => props.theme.colors.text.muted};
grid-column: span 2;
&:first-child {
border-right: 1px solid ${(props) => props.theme.border.border1};
&:last-child {
border-left: 1px solid ${(props) => props.theme.border.border1};
}
}
}
.d2h-wrapper {
background-color: ${(props) => props.theme.bg} !important;
/* The Virtuoso scroll container fills the rest of the modal body. */
> div[data-testid='virtuoso-scroller'],
> div:last-child {
flex: 1 1 auto;
min-height: 0;
}
/* Active block gets a persistent 3px yellow bar down the left edge. */
.diff-row {
display: grid;
grid-template-columns: 9ch 1fr 9ch 1fr;
font-family: 'Fira Code', monospace;
font-size: 12px;
line-height: 1.5;
/* Must match Virtuoso's fixedItemHeight in SpecDiffModal/index.js */
min-height: 18px;
color: ${(props) => props.theme.text};
font-variant-ligatures: none;
font-feature-settings: 'liga' 0, 'calt' 0;
}
.d2h-file-wrapper {
border: none;
border-radius: 0;
margin-bottom: 0;
/* Vertical divider between the two side-by-side panels. Applied to the
third grid cell (right-side line number), aligned with the header's
existing border-right on the "Current Spec" label. */
.diff-row > *:nth-child(3) {
border-left: 1px solid ${(props) => props.theme.border.border1};
}
.d2h-file-header {
display: none;
.diff-row.diff-row-focused > .diff-cell-num:first-child {
box-shadow: inset 3px 0 0 ${(props) => props.theme.colors.text.yellow};
}
.d2h-files-diff {
width: 100%;
.diff-row.diff-row-focused > .diff-cell-num {
color: ${(props) => props.theme.text};
font-weight: 600;
}
.d2h-file-side-diff:first-child {
border-right: 1px solid ${(props) => props.theme.border.border1};
.diff-cell-num {
padding: 0 0.5em;
text-align: right;
color: ${(props) => props.theme.colors.text.muted};
user-select: none;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
&.diff-kind-del {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 22%, transparent);
}
&.diff-kind-ins {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 15%, transparent);
}
&.diff-kind-empty {
background-color: ${(props) => rgba(props.theme.colors.text.muted, 0.05)};
}
}
.d2h-code-side-linenumber {
background: transparent !important;
position: static !important;
.diff-cell-code {
display: flex;
min-width: 0;
padding: 0 0.5em;
white-space: pre;
overflow: hidden;
&.diff-kind-del {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 22%, transparent);
}
&.diff-kind-ins {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 15%, transparent);
}
&.diff-kind-empty {
background-color: ${(props) => rgba(props.theme.colors.text.muted, 0.05)};
}
}
.d2h-diff-tbody {
tr td { border: none !important; }
.diff-prefix {
width: 1em;
flex-shrink: 0;
color: ${(props) => props.theme.colors.text.muted};
user-select: none;
}
.d2h-ins {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 15%, transparent) !important;
border-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 40%, transparent) !important;
.diff-content {
flex: 1 1 auto;
min-width: 0;
overflow-x: auto;
scrollbar-width: thin;
del {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 40%, transparent);
text-decoration: none;
}
ins {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 40%, transparent);
text-decoration: none;
}
}
.d2h-del {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 15%, transparent) !important;
border-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 40%, transparent) !important;
}
/* Hunk row must be exactly 18px so Virtuoso's fixedItemHeight is
accurate. Borders would add 2px; we use inset box-shadow to get the
visual top/bottom rule without consuming layout space. Vertical
padding removed for the same reason. */
.diff-row-hunk {
grid-template-columns: 1fr;
background-color: ${(props) => rgba(props.theme.colors.text.muted, 0.08)};
color: ${(props) => props.theme.colors.text.muted};
box-shadow:
inset 0 1px 0 ${(props) => props.theme.border.border1},
inset 0 -1px 0 ${(props) => props.theme.border.border1};
.d2h-file-diff .d2h-ins.d2h-change {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 25%, transparent) !important;
}
.d2h-file-diff .d2h-del.d2h-change {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.warning} 20%, transparent) !important;
}
.d2h-code-line ins,
.d2h-code-side-line ins {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 40%, transparent) !important;
text-decoration: none;
}
.d2h-code-line del,
.d2h-code-side-line del {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 40%, transparent) !important;
text-decoration: none;
}
.d2h-code-line,
.d2h-code-side-line {
color: ${(props) => props.theme.text} !important;
word-break: break-all;
}
.d2h-code-line-ctn {
word-break: break-all;
}
.d2h-tag {
font-size: 9px;
font-weight: 500;
padding: 1px 5px;
border-radius: ${(props) => props.theme.border.radius.sm};
text-transform: uppercase;
letter-spacing: 0.02em;
border: none;
}
.d2h-changed-tag {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.warning} 15%, transparent);
color: ${(props) => props.theme.colors.text.warning};
}
.d2h-added-tag {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.green} 13%, transparent);
color: ${(props) => props.theme.colors.text.green};
}
.d2h-deleted-tag {
background-color: color-mix(in srgb, ${(props) => props.theme.colors.text.danger} 13%, transparent);
color: ${(props) => props.theme.colors.text.danger};
}
.d2h-renamed-tag,
.d2h-moved-tag {
display: none;
}
.d2h-file-wrapper,
.d2h-file-diff,
.d2h-code-wrapper,
.d2h-diff-table,
.d2h-code-line,
.d2h-code-side-line,
.d2h-code-line-ctn,
.d2h-code-linenumber,
.d2h-code-side-linenumber {
font-family: 'Fira Code', monospace !important;
font-size: 12px !important;
.diff-cell-hunk {
padding: 0 0.75em;
font-family: 'Fira Code', monospace;
font-size: 11px;
white-space: pre;
overflow: hidden;
text-overflow: ellipsis;
}
}
}
@@ -1661,6 +1672,15 @@ const StyledWrapper = styled.div`
}
.spec-diff-modal {
.spec-diff-header {
display: flex;
align-items: flex-end;
justify-content: space-between;
gap: 0.5rem;
margin-bottom: 1rem;
}
.spec-diff-badges {
display: flex;
gap: 0.5rem;
@@ -1671,12 +1691,50 @@ const StyledWrapper = styled.div`
.spec-diff-subtitle {
font-size: ${(props) => props.theme.font.size.sm};
color: ${(props) => props.theme.colors.text.muted};
margin: 0 0 0.75rem 0;
}
.spec-diff-nav {
display: flex;
align-items: center;
justify-content: space-between;
gap: 1rem;
.spec-diff-nav-counter {
font-size: ${(props) => props.theme.font.size.sm};
color: ${(props) => props.theme.colors.text.muted};
}
.spec-diff-nav-buttons {
display: flex;
gap: 0.5rem;
}
.spec-diff-nav-btn {
display: inline-flex;
align-items: center;
gap: 0.25rem;
padding: 0.25rem 0.5rem;
font-size: ${(props) => props.theme.font.size.xs};
background: none;
border: 1px solid ${(props) => props.theme.border.border1};
border-radius: ${(props) => props.theme.border.radius.sm};
color: ${(props) => props.theme.text};
cursor: pointer;
&:hover:not(:disabled) {
background: ${(props) => props.theme.background.surface1};
}
&:disabled {
opacity: 0.5;
cursor: not-allowed;
}
}
}
.spec-diff-body {
.text-diff-container {
max-height: calc(80vh - 140px);
height: calc(80vh - 140px);
}
}
}

View File

@@ -90,6 +90,17 @@ const SyncReviewPage = ({
const tabUiState = useSelector((state) => state.openapiSync?.tabUiState?.[collectionUid] || {});
const [showConfirmation, setShowConfirmation] = useState(false);
const [showSpecDiffModal, setShowSpecDiffModal] = useState(false);
const [isOpeningSpecDiff, setIsOpeningSpecDiff] = useState(false);
// setTimeout lets the button's spinner paint before the modal mounts —
// without it, React batches both state updates and the spinner never shows.
const handleOpenSpecDiff = () => {
setIsOpeningSpecDiff(true);
setTimeout(() => {
setShowSpecDiffModal(true);
setIsOpeningSpecDiff(false);
}, 0);
};
const { specAddedEndpoints, specUpdatedEndpoints, localUpdatedEndpoints, specRemovedEndpoints } = useMemo(() => {
if (!remoteDrift) {
@@ -228,8 +239,17 @@ const SyncReviewPage = ({
{(specDrift?.unifiedDiff || decidableEndpoints.length > 0) && (
<div className="bulk-actions">
{specDrift?.unifiedDiff && (
<button className="bulk-btn" onClick={() => setShowSpecDiffModal(true)}>
<IconArrowsDiff size={12} /> View Spec Diff
<button
className="bulk-btn"
onClick={handleOpenSpecDiff}
disabled={isOpeningSpecDiff || showSpecDiffModal}
>
{isOpeningSpecDiff ? (
<IconLoader2 size={12} className="animate-spin" />
) : (
<IconArrowsDiff size={12} />
)}{' '}
View Spec Diff
</button>
)}
{decidableEndpoints.length > 0 && (