Files
openchamber/packages/ui/src/components/views/DiffView.tsx
T

1716 lines
70 KiB
TypeScript

import React from 'react';
import { useUIStore } from '@/stores/useUIStore';
import { useEffectiveDirectory } from '@/hooks/useEffectiveDirectory';
import { useGitStore, useGitStatus, useIsGitRepo, useGitFileCount, useGitLoadingStatus } from '@/stores/useGitStore';
import { cn } from '@/lib/utils';
import type { GitStatus } from '@/lib/api/types';
import {
DropdownMenu,
DropdownMenuContent,
DropdownMenuRadioGroup,
DropdownMenuRadioItem,
DropdownMenuTrigger,
} from '@/components/ui/dropdown-menu';
import {
Tooltip,
TooltipContent,
TooltipTrigger,
} from '@/components/ui/tooltip';
import { Button } from '@/components/ui/button';
import { toast } from '@/components/ui';
import { ScrollableOverlay } from '@/components/ui/ScrollableOverlay';
import { getLanguageFromExtension, isImageFile } from '@/lib/toolHelpers';
import { useRuntimeAPIs } from '@/hooks/useRuntimeAPIs';
import { DiffViewToggle } from '@/components/chat/message/DiffViewToggle';
import type { DiffViewMode } from '@/components/chat/message/types';
import { ReviewFlowDialog, type ReviewFlowExecution } from '@/components/session/ReviewFlowDialog';
import { PierreDiffViewer } from './PierreDiffViewer';
import { useDeviceInfo } from '@/lib/device';
import { FileTypeIcon } from '@/components/icons/FileTypeIcon';
import { Icon } from "@/components/icon/Icon";
import { getContextFileOpenFailureMessage, validateContextFileOpen } from '@/lib/contextFileOpenGuard';
import { toAbsoluteFilePath } from '@/lib/path-utils';
import { sessionEvents } from '@/lib/sessionEvents';
import { useI18n } from '@/lib/i18n';
import type { I18nKey } from '@/lib/i18n/store';
import { fileDiffFromPatch } from '@/lib/diff/patchFileDiff';
import { isVSCodeRuntime } from '@/lib/desktop';
import { startReviewFlow } from '@/lib/reviewFlow';
import { useSessionUIStore } from '@/sync/session-ui-store';
import type { FileDiffMetadata } from '@pierre/diffs';
// Minimum width for side-by-side diff view (px)
const SIDE_BY_SIDE_MIN_WIDTH = 1100;
const DIFF_REQUEST_TIMEOUT_MS = 15000;
const LARGE_DIFF_CHANGED_LINES = 500;
const STACKED_DIFF_MOUNT_MARGIN = 300;
const FULL_CONTEXT_DIFF_LINES = 1_000_000;
const DEFAULT_CONTEXT_DIFF_LINES = 3;
// Perf: limit concurrent expanded diffs in stacked view.
// Expanding many diffs mounts many Pierre instances + lots of DOM.
const getStackedViewDefaultExpandedCount = (fileCount: number): number => {
if (fileCount <= 6) return fileCount;
if (fileCount <= 12) return 6;
if (fileCount <= 25) return 4;
return 2;
};
type FileEntry = GitStatus['files'][number] & {
insertions: number;
deletions: number;
isNew: boolean;
};
type DiffContextMode = 'patch' | 'full';
type DiffData = {
original: string;
modified: string;
isBinary?: boolean;
patch?: string;
fileDiff?: FileDiffMetadata;
contextMode?: DiffContextMode;
};
type DiffScope = 'all' | 'staged' | 'working';
const BinaryDiffPlaceholder = React.memo(() => {
const { t } = useI18n();
return (
<div className="rounded-lg border border-border/60 bg-background px-3 py-2">
<div className="typography-meta text-muted-foreground">{t('diffView.binary.unavailable')}</div>
</div>
);
});
type ChangeDescriptor = {
code: string;
color: string;
descriptionKey: I18nKey;
};
const CHANGE_DESCRIPTORS: Record<string, ChangeDescriptor> = {
'?': { code: '?', color: 'var(--status-info)', descriptionKey: 'diffView.change.untracked' },
A: { code: 'A', color: 'var(--status-success)', descriptionKey: 'diffView.change.new' },
D: { code: 'D', color: 'var(--status-error)', descriptionKey: 'diffView.change.deleted' },
R: { code: 'R', color: 'var(--status-info)', descriptionKey: 'diffView.change.renamed' },
C: { code: 'C', color: 'var(--status-info)', descriptionKey: 'diffView.change.copied' },
M: { code: 'M', color: 'var(--status-warning)', descriptionKey: 'diffView.change.modified' },
};
const DEFAULT_CHANGE_DESCRIPTOR = CHANGE_DESCRIPTORS.M;
const getChangeSymbol = (file: GitStatus['files'][number]): string => {
const indexCode = file.index?.trim();
const workingCode = file.working_dir?.trim();
if (indexCode && indexCode !== '?') return indexCode.charAt(0);
if (workingCode) return workingCode.charAt(0);
return indexCode?.charAt(0) || workingCode?.charAt(0) || 'M';
};
const describeChange = (file: GitStatus['files'][number]): ChangeDescriptor => {
const symbol = getChangeSymbol(file);
return CHANGE_DESCRIPTORS[symbol] ?? DEFAULT_CHANGE_DESCRIPTOR;
};
const isNewStatusFile = (file: GitStatus['files'][number]): boolean => {
const { index, working_dir: workingDir } = file;
return index === 'A' || workingDir === 'A' || index === '?' || workingDir === '?';
};
const isStagedStatusFile = (file: GitStatus['files'][number]): boolean => {
const indexCode = file.index?.trim();
return Boolean(indexCode && indexCode !== '?');
};
const isWorkingStatusFile = (file: GitStatus['files'][number]): boolean => {
const workingCode = file.working_dir?.trim();
return Boolean(workingCode) || file.index === '?';
};
const toAbsolutePath = (directory: string, filePath: string): string => {
return toAbsoluteFilePath(directory, filePath);
};
const normalizePath = (value?: string | null): string =>
(value || '').replace(/\\/g, '/').replace(/\/+$/, '');
const getFirstChangedModifiedLine = (original: string, modified: string): number => {
const originalLines = original.split('\n');
const modifiedLines = modified.split('\n');
const sharedLength = Math.min(originalLines.length, modifiedLines.length);
for (let index = 0; index < sharedLength; index += 1) {
if (originalLines[index] !== modifiedLines[index]) {
return index + 1;
}
}
if (modifiedLines.length > originalLines.length) {
return originalLines.length + 1;
}
if (originalLines.length > modifiedLines.length) {
return Math.max(1, modifiedLines.length);
}
return 1;
};
const getFirstVisibleModifiedLineFromPatch = (patch: string): number | null => {
if (!patch) {
return null;
}
const match = patch.match(/@@\s*-\d+(?:,\d+)?\s+\+(\d+)(?:,\d+)?\s*@@/m);
if (!match) {
return null;
}
const parsed = Number.parseInt(match[1], 10);
if (!Number.isFinite(parsed) || parsed < 1) {
return null;
}
return parsed;
};
const isBinaryPatch = (patch: string): boolean =>
/^Binary files .+ differ$/m.test(patch) || /^GIT binary patch$/m.test(patch);
const createTextDiffDataFromPatch = (filePath: string, patch: string, contextMode: DiffContextMode): DiffData => {
if (isBinaryPatch(patch)) {
return { original: '', modified: '', isBinary: true, patch, contextMode };
}
return {
original: '',
modified: '',
patch,
fileDiff: fileDiffFromPatch(filePath, patch),
contextMode,
};
};
const formatDiffTotals = (
insertions?: number,
deletions?: number,
options?: { shrink?: boolean; className?: string },
) => {
const added = insertions ?? 0;
const removed = deletions ?? 0;
if (!added && !removed) return null;
return (
<span
className={cn(
'typography-meta flex items-center gap-1 text-xs whitespace-nowrap',
options?.shrink ? 'min-w-0 overflow-hidden' : 'flex-shrink-0',
options?.className,
)}
>
{added ? <span style={{ color: 'var(--status-success)' }}>+{added}</span> : null}
{removed ? <span style={{ color: 'var(--status-error)' }}>-{removed}</span> : null}
</span>
);
};
interface ChangeScopeSelectorProps {
scope: Extract<DiffScope, 'working' | 'staged'>;
workingCount: number;
stagedCount: number;
onScopeChange?: (scope: Extract<DiffScope, 'working' | 'staged'>) => void;
}
const ChangeScopeSelector = React.memo<ChangeScopeSelectorProps>(({
scope,
workingCount,
stagedCount,
onScopeChange,
}) => {
const { t } = useI18n();
const [open, setOpen] = React.useState(false);
const currentCount = scope === 'staged' ? stagedCount : workingCount;
const currentLabel = scope === 'staged' ? t('diffView.scope.staged') : t('diffView.scope.changed');
return (
<DropdownMenu open={open} onOpenChange={setOpen}>
<DropdownMenuTrigger asChild>
<button
type="button"
className="flex h-7 flex-shrink-0 items-center gap-1.5 rounded-md px-2 typography-ui-label font-semibold text-foreground outline-none hover:bg-interactive-hover focus-visible:ring-2 focus-visible:ring-ring"
aria-label={t('diffView.scope.selectorAria')}
>
<span className="whitespace-nowrap">
{currentLabel}<span className="diff-toolbar__scope-count">: {currentCount}</span>
</span>
<Icon name="arrow-down-s" className="size-4 flex-shrink-0 opacity-60" />
</button>
</DropdownMenuTrigger>
<DropdownMenuContent align="start" className="w-40">
<DropdownMenuRadioGroup
value={scope}
onValueChange={(value) => {
if (value === 'working' || value === 'staged') {
onScopeChange?.(value);
setOpen(false);
}
}}
>
<DropdownMenuRadioItem value="working">
<span className="flex min-w-0 flex-1 items-center justify-between gap-3">
<span>{t('diffView.scope.changed')}</span>
<span className="typography-meta text-muted-foreground">{workingCount}</span>
</span>
</DropdownMenuRadioItem>
<DropdownMenuRadioItem value="staged">
<span className="flex min-w-0 flex-1 items-center justify-between gap-3">
<span>{t('diffView.scope.staged')}</span>
<span className="typography-meta text-muted-foreground">{stagedCount}</span>
</span>
</DropdownMenuRadioItem>
</DropdownMenuRadioGroup>
</DropdownMenuContent>
</DropdownMenu>
);
});
interface FileListProps {
changedFiles: FileEntry[];
selectedFile: string | null;
onSelectFile: (path: string) => void;
}
const FileList = React.memo<FileListProps>(({
changedFiles,
selectedFile,
onSelectFile,
}) => {
const { t } = useI18n();
if (changedFiles.length === 0) return null;
return (
<ScrollableOverlay outerClassName="flex-1 min-h-0" className="px-2 py-2">
<ul className="flex flex-col gap-1">
{changedFiles.map((file) => {
const descriptor = describeChange(file);
const isActive = selectedFile === file.path;
return (
<li key={file.path}>
<button
type="button"
onClick={() => onSelectFile(file.path)}
className={cn(
'flex w-full items-center gap-2 rounded-md px-2 py-1.5 text-left transition-colors',
isActive
? 'bg-interactive-selection text-interactive-selection-foreground'
: 'text-muted-foreground hover:bg-interactive-hover hover:text-foreground'
)}
>
<FileTypeIcon filePath={file.path} className="h-3.5 w-3.5 flex-shrink-0" />
<span
className="typography-micro font-semibold w-4 text-center uppercase"
style={{ color: descriptor.color }}
title={t(descriptor.descriptionKey)}
aria-label={t(descriptor.descriptionKey)}
>
{descriptor.code}
</span>
<span
className="min-w-0 flex-1 truncate typography-meta"
style={{ direction: 'rtl', textAlign: 'left', unicodeBidi: 'plaintext' }}
title={file.path}
>
{file.path}
</span>
{formatDiffTotals(file.insertions, file.deletions)}
</button>
</li>
);
})}
</ul>
</ScrollableOverlay>
);
});
// Image diff viewer for binary image files
interface InlineImageDiffViewerProps {
filePath: string;
diff: DiffData;
renderSideBySide: boolean;
}
const InlineImageDiffViewer = React.memo<InlineImageDiffViewerProps>(({
filePath,
diff,
renderSideBySide,
}) => {
const { t } = useI18n();
const hasOriginal = diff.original.length > 0;
const hasModified = diff.modified.length > 0;
const containerClass = renderSideBySide
? 'flex flex-row gap-6 items-start justify-center'
: 'flex flex-col gap-4 items-center';
const imageContainerClass = renderSideBySide
? 'flex flex-col items-center gap-2 flex-1 min-w-0'
: 'flex flex-col items-center gap-2';
return (
<div className="w-full overflow-auto p-4" style={{ contain: 'layout' }}>
<div className={containerClass}>
{hasOriginal && (
<div className={imageContainerClass}>
<span className="typography-meta text-muted-foreground font-medium">{t('diffView.image.original')}</span>
<img
src={diff.original}
alt={t('diffView.image.originalAlt', { path: filePath })}
className={renderSideBySide ? "max-w-full max-h-[70vh] object-contain" : "max-w-full object-contain"}
style={{ imageRendering: 'auto' }}
/>
</div>
)}
{hasModified && (
<div className={imageContainerClass}>
<span className="typography-meta text-muted-foreground font-medium">
{hasOriginal ? t('diffView.image.modified') : t('diffView.image.new')}
</span>
<img
src={diff.modified}
alt={t('diffView.image.modifiedAlt', { path: filePath })}
className={renderSideBySide ? "max-w-full max-h-[70vh] object-contain" : "max-w-full object-contain"}
style={{ imageRendering: 'auto' }}
/>
</div>
)}
</div>
</div>
);
});
interface InlineDiffViewerProps {
filePath: string;
diff: DiffData;
renderSideBySide: boolean;
wrapLines: boolean;
}
const InlineDiffViewer = React.memo<InlineDiffViewerProps>(({
filePath,
diff,
renderSideBySide,
wrapLines,
}) => {
const language = React.useMemo(
() => getLanguageFromExtension(filePath) || 'text',
[filePath]
);
if (diff.isBinary) {
return <BinaryDiffPlaceholder />;
}
if (isImageFile(filePath)) {
return (
<InlineImageDiffViewer
filePath={filePath}
diff={diff}
renderSideBySide={renderSideBySide}
/>
);
}
return (
<div className="w-full" style={{ contain: 'layout' }}>
<PierreDiffViewer
original={diff.original}
modified={diff.modified}
fileDiff={diff.fileDiff}
language={language}
fileName={filePath}
renderSideBySide={renderSideBySide}
wrapLines={wrapLines}
layout="inline"
/>
</div>
);
});
type FileDiffAction = 'stage' | 'unstage' | 'discard';
interface FileDiffActionsProps {
filePath: string;
staged: boolean;
busyAction: FileDiffAction | null;
disabled: boolean;
onAction: (action: FileDiffAction) => void;
}
const FileDiffActions = React.memo<FileDiffActionsProps>(({
filePath,
staged,
busyAction,
disabled,
onAction,
}) => {
const { t } = useI18n();
return (
<div className="flex items-center gap-0.5 rounded-full border border-[var(--interactive-border)]/45 bg-[var(--surface-background)]/95 px-1 py-0.5 shadow-lg backdrop-blur-md">
{staged ? (
<FileDiffActionButton
label={t('gitView.changes.unstageFileAria', { path: filePath })}
icon="arrow-go-back"
loading={busyAction === 'unstage'}
disabled={disabled}
onClick={() => onAction('unstage')}
/>
) : (
<>
<FileDiffActionButton
label={t('gitView.changes.revertFileAria', { path: filePath })}
icon="arrow-go-back"
loading={busyAction === 'discard'}
disabled={disabled}
tone="failure"
onClick={() => onAction('discard')}
/>
<FileDiffActionButton
label={t('gitView.changes.stageFileAria', { path: filePath })}
icon="add"
loading={busyAction === 'stage'}
disabled={disabled}
tone="success"
onClick={() => onAction('stage')}
/>
</>
)}
</div>
);
});
interface FileDiffActionButtonProps {
label: string;
icon: 'add' | 'arrow-go-back';
loading: boolean;
disabled: boolean;
tone?: 'failure' | 'success';
onClick: () => void;
}
const FileDiffActionButton: React.FC<FileDiffActionButtonProps> = ({
label,
icon,
loading,
disabled,
tone,
onClick,
}) => (
<Button
variant="ghost"
size="sm"
className={cn(
'h-6 w-6 rounded-none bg-transparent p-0 text-muted-foreground opacity-70 hover:bg-transparent hover:text-foreground hover:opacity-100',
tone === 'failure' && 'text-[var(--status-error)] hover:text-[var(--status-error)]',
tone === 'success' && 'text-[var(--status-success)] hover:text-[var(--status-success)]'
)}
disabled={disabled}
title={label}
aria-label={label}
onClick={(event) => {
event.stopPropagation();
onClick();
}}
>
{loading ? (
<Icon name="loader-4" className="size-3.5 animate-spin" />
) : (
<Icon name={icon} className={icon === 'add' ? 'size-4' : 'size-3.5'} />
)}
</Button>
);
interface MultiFileDiffEntryProps {
directory: string;
file: FileEntry;
layout: 'inline' | 'side-by-side';
wrapLines: boolean;
isSelected: boolean;
isExpanded: boolean;
isMounted: boolean;
onSelect: (path: string) => void;
onExpandedChange: (path: string, expanded: boolean) => void;
registerSectionRef: (path: string, node: HTMLDivElement | null) => void;
showOpenInEditorAction?: boolean;
isOpeningInEditor?: boolean;
onOpenInEditor?: (filePath: string, diffData: DiffData | null) => void;
staged?: boolean;
loadFullFiles?: boolean;
}
const MultiFileDiffEntry = React.memo<MultiFileDiffEntryProps>(({
directory,
file,
layout,
wrapLines,
isSelected,
isExpanded,
isMounted,
onSelect,
onExpandedChange,
registerSectionRef,
showOpenInEditorAction = false,
isOpeningInEditor = false,
onOpenInEditor,
staged = false,
loadFullFiles = false,
}) => {
const { t } = useI18n();
const { git } = useRuntimeAPIs();
const cachedDiff = useGitStore(
React.useCallback((state) => {
return state.directories.get(directory)?.diffCache.get(file.path) ?? null;
}, [directory, file.path])
);
const setDiff = useGitStore((state) => state.setDiff);
const fetchStatus = useGitStore((state) => state.fetchStatus);
const setDiffFileLayout = useUIStore((state) => state.setDiffFileLayout);
const [diffRetryNonce, setDiffRetryNonce] = React.useState(0);
const [diffLoadError, setDiffLoadError] = React.useState<string | null>(null);
const [isLoading, setIsLoading] = React.useState(false);
const [fileAction, setFileAction] = React.useState<FileDiffAction | null>(null);
const [forceRenderLarge, setForceRenderLarge] = React.useState(false);
const [localDiffData, setLocalDiffData] = React.useState<DiffData | null>(null);
const [stagedDiffData, setStagedDiffData] = React.useState<DiffData | null>(null);
const lastDiffRequestRef = React.useRef<string | null>(null);
const sectionRef = React.useRef<HTMLDivElement | null>(null);
const descriptor = React.useMemo(() => describeChange(file), [file]);
const renderSideBySide = layout === 'side-by-side';
const desiredContextMode: DiffContextMode = loadFullFiles ? 'full' : 'patch';
const fileStatusKey = `${file.index}:${file.working_dir}:${file.insertions}:${file.deletions}`;
const diffData = React.useMemo<DiffData | null>(() => {
if (staged) return stagedDiffData;
if (localDiffData) return localDiffData;
if (!cachedDiff) return null;
return { original: cachedDiff.original, modified: cachedDiff.modified, isBinary: cachedDiff.isBinary, contextMode: 'full' };
}, [cachedDiff, localDiffData, staged, stagedDiffData]);
const diffDataMatchesContextMode = diffData?.contextMode === desiredContextMode;
const setSectionRef = React.useCallback((node: HTMLDivElement | null) => {
sectionRef.current = node;
registerSectionRef(file.path, node);
}, [file.path, registerSectionRef]);
const handleOpenChange = React.useCallback((open: boolean) => {
onExpandedChange(file.path, open);
}, [file.path, onExpandedChange]);
const handleSelect = React.useCallback(() => {
onSelect(file.path);
}, [file.path, onSelect]);
React.useEffect(() => {
if (!staged) {
setLocalDiffData(null);
} else {
setStagedDiffData(null);
}
setDiffLoadError(null);
lastDiffRequestRef.current = null;
}, [fileStatusKey, staged]);
React.useEffect(() => {
if (!isExpanded || !isMounted) return;
if (!directory || (diffData && diffDataMatchesContextMode)) {
lastDiffRequestRef.current = null;
setIsLoading(false);
return;
}
const requestKey = `${directory}::${file.path}::${staged ? 'staged' : 'unstaged'}::${fileStatusKey}::${desiredContextMode}::${diffRetryNonce}`;
if (lastDiffRequestRef.current === requestKey) {
return;
}
lastDiffRequestRef.current = requestKey;
setDiffLoadError(null);
setIsLoading(true);
let cancelled = false;
const contextLines = loadFullFiles ? FULL_CONTEXT_DIFF_LINES : DEFAULT_CONTEXT_DIFF_LINES;
const fetchPromise = isImageFile(file.path)
? git.getGitFileDiff(directory, { path: file.path, staged })
: git.getGitDiff(directory, { path: file.path, staged, contextLines });
const timeoutMs = DIFF_REQUEST_TIMEOUT_MS;
const timeoutPromise = new Promise<never>((_, reject) => {
setTimeout(() => reject(new Error(`Timed out after ${timeoutMs}ms`)), timeoutMs);
});
void Promise.race([fetchPromise, timeoutPromise])
.then((response) => {
if (cancelled) return;
if ('diff' in response) {
const nextDiff = createTextDiffDataFromPatch(file.path, response.diff, desiredContextMode);
if (staged) {
setStagedDiffData(nextDiff);
} else {
setLocalDiffData(nextDiff);
}
} else {
const nextDiff = {
original: response.original ?? '',
modified: response.modified ?? '',
isBinary: response.isBinary,
contextMode: 'full' as const,
};
if (staged) {
setStagedDiffData(nextDiff);
} else {
setDiff(directory, file.path, nextDiff);
}
}
setIsLoading(false);
})
.catch((error) => {
if (cancelled) return;
const message = error instanceof Error ? error.message : String(error);
setDiffLoadError(message);
setIsLoading(false);
});
return () => {
cancelled = true;
if (lastDiffRequestRef.current === requestKey) {
lastDiffRequestRef.current = null;
}
};
}, [desiredContextMode, diffData, diffDataMatchesContextMode, diffRetryNonce, directory, file.path, fileStatusKey, git, isExpanded, isMounted, loadFullFiles, setDiff, staged]);
const handleToggle = React.useCallback(() => {
handleOpenChange(!isExpanded);
handleSelect();
}, [handleOpenChange, handleSelect, isExpanded]);
const handleFileAction = React.useCallback(async (action: FileDiffAction) => {
if (!directory || fileAction !== null) {
return;
}
setFileAction(action);
try {
if (action === 'stage') {
await git.stageGitFile(directory, file.path);
} else if (action === 'unstage') {
await git.unstageGitFile(directory, file.path);
} else {
await git.revertGitFile(directory, file.path, { scope: 'working' });
}
setDiffRetryNonce((nonce) => nonce + 1);
await fetchStatus(directory, git);
} catch (error) {
const fallbackKey = action === 'unstage'
? 'gitView.toast.unstageFileFailed'
: action === 'stage'
? 'gitView.toast.stageFileFailed'
: 'gitView.toast.revertFailed';
toast.error(error instanceof Error ? error.message : t(fallbackKey));
} finally {
setFileAction((current) => (current === action ? null : current));
}
}, [directory, fetchStatus, file.path, fileAction, git, t]);
return (
<div ref={setSectionRef} className="scroll-mt-9 border-b border-[var(--interactive-border)]/40 last:border-b-0">
<div className="sticky top-0 z-30 border-b border-[var(--interactive-border)]/35 bg-[var(--surface-elevated)]/90 backdrop-blur-md supports-[backdrop-filter]:bg-[var(--surface-elevated)]/80">
<div
role="button"
tabIndex={0}
onClick={handleToggle}
onKeyDown={(event) => {
if (event.target !== event.currentTarget) return;
if (event.key === 'Enter' || event.key === ' ') {
event.preventDefault();
handleToggle();
}
}}
className={cn(
'cursor-pointer',
'group/header relative grid min-h-9 w-full min-w-0 grid-cols-[minmax(0,1fr)_auto] items-center gap-2 overflow-hidden px-3 py-2',
'bg-transparent',
'text-muted-foreground hover:text-foreground',
isSelected ? 'bg-[var(--interactive-selection)]/35' : null
)}
>
<div className="absolute inset-0 pointer-events-none group-hover/header:bg-[var(--interactive-hover)]/50" />
<div className="relative flex min-w-0 flex-1 items-center gap-2">
<span className="flex size-5 items-center justify-center opacity-70 group-hover/header:opacity-100">
{isExpanded ? (
<Icon name="arrow-down-s" className="size-4" />
) : (
<Icon name="arrow-right-s" className="size-4" />
)}
</span>
<span
className="typography-micro font-semibold leading-none w-4 text-center uppercase"
style={{ color: descriptor.color }}
title={t(descriptor.descriptionKey)}
aria-label={t(descriptor.descriptionKey)}
>
{descriptor.code}
</span>
<span
className="min-w-0 flex-1 overflow-hidden typography-ui-label"
title={file.path}
>
<span className="flex min-w-0 items-center gap-2">
<FileTypeIcon filePath={file.path} className="h-3.5 w-3.5 flex-shrink-0 align-middle" />
{(() => {
const lastSlash = file.path.lastIndexOf('/');
if (lastSlash === -1) {
return (
<span
className="block min-w-0 truncate typography-ui-label text-foreground"
style={{ direction: 'rtl', textAlign: 'left', unicodeBidi: 'plaintext' }}
>
{file.path}
</span>
);
}
const dir = file.path.slice(0, lastSlash);
const name = file.path.slice(lastSlash + 1);
return (
<span className="flex min-w-0 items-baseline overflow-hidden">
<span
className="min-w-0 truncate typography-ui-label text-muted-foreground"
style={{ direction: 'rtl', textAlign: 'left', unicodeBidi: 'plaintext' }}
>
{dir}
</span>
<span className="flex-shrink-0 typography-ui-label">
<span className="text-muted-foreground">/</span>
<span className="text-foreground">{name}</span>
</span>
</span>
);
})()}
</span>
</span>
</div>
<div className="relative flex shrink-0 items-center justify-self-end gap-2">
{formatDiffTotals(file.insertions, file.deletions)}
{showOpenInEditorAction && onOpenInEditor ? (
<Button
variant="ghost"
size="sm"
className="h-5 w-5 p-0 opacity-70 hover:opacity-100"
title={t('diffView.actions.openFileInEditorAtChange')}
onClick={(event) => {
event.stopPropagation();
onOpenInEditor(file.path, diffData);
}}
disabled={isOpeningInEditor}
>
{isOpeningInEditor ? (
<Icon name="loader-4" className="size-3.5 animate-spin" />
) : (
<Icon name="edit" className="size-3.5" />
)}
</Button>
) : null}
<DiffViewToggle
mode={renderSideBySide ? 'side-by-side' : 'unified'}
onModeChange={(mode: DiffViewMode) => {
const nextLayout: 'inline' | 'side-by-side' =
mode === 'side-by-side' ? 'side-by-side' : 'inline';
setDiffFileLayout(file.path, nextLayout);
}}
className="opacity-70"
/>
</div>
</div>
</div>
{isExpanded && (
<div className="relative bg-background overflow-hidden">
{!isMounted && !diffLoadError ? (
<div className="h-40 border border-border/40 bg-background/40" />
) : null}
{diffLoadError ? (
<div className="flex flex-col items-center gap-2 px-4 py-8 text-sm text-muted-foreground">
<div className="typography-ui-label font-semibold text-foreground">
{t('diffView.state.failedToLoadDiff')}
</div>
<div className="typography-meta text-muted-foreground max-w-[32rem] text-center">
{diffLoadError}
</div>
<button
type="button"
className="typography-ui-label text-primary hover:underline"
onClick={() => setDiffRetryNonce((nonce) => nonce + 1)}
>
{t('diffView.actions.retry')}
</button>
</div>
) : null}
{isMounted && isLoading && !diffData && !diffLoadError ? (
<div className="flex items-center justify-center gap-2 px-4 py-8 text-sm text-muted-foreground">
<Icon name="loader-4" className="size-4 animate-spin" />
{t('diffView.state.loadingDiff')}
</div>
) : null}
{isMounted && diffData && !forceRenderLarge && (file.insertions + file.deletions) > LARGE_DIFF_CHANGED_LINES ? (
<div className="flex flex-col items-center gap-2 px-4 py-8 text-sm text-muted-foreground">
<div className="typography-ui-label font-semibold text-foreground">
{t('diffView.state.largeDiff', { count: file.insertions + file.deletions })}
</div>
<div className="typography-meta text-muted-foreground">
{t('diffView.state.largeDiffDescription')}
</div>
<button
type="button"
className="typography-ui-label text-primary hover:underline"
onClick={() => setForceRenderLarge(true)}
>
{t('diffView.actions.renderAnyway')}
</button>
</div>
) : null}
{isMounted && diffData && (forceRenderLarge || (file.insertions + file.deletions) <= LARGE_DIFF_CHANGED_LINES) ? (
<>
<InlineDiffViewer
filePath={file.path}
diff={diffData}
renderSideBySide={renderSideBySide}
wrapLines={wrapLines}
/>
<div className="pointer-events-none absolute bottom-3 right-3 z-20">
<div className="pointer-events-auto">
<FileDiffActions
filePath={file.path}
staged={staged}
busyAction={fileAction}
disabled={fileAction !== null}
onAction={handleFileAction}
/>
</div>
</div>
</>
) : null}
</div>
)}
</div>
);
});
interface DiffViewProps {
hideStackedFileSidebar?: boolean;
stackedDefaultCollapsedAll?: boolean;
pinSelectedFileHeaderToTopOnNavigate?: boolean;
showOpenInEditorAction?: boolean;
diffScope?: DiffScope;
onDiffScopeChange?: (scope: Extract<DiffScope, 'working' | 'staged'>) => void;
targetFilePath?: string | null;
/** Render diff content flush with the container edges (no outer padding). */
flushContent?: boolean;
}
export const DiffView: React.FC<DiffViewProps> = ({
hideStackedFileSidebar = false,
stackedDefaultCollapsedAll = false,
pinSelectedFileHeaderToTopOnNavigate = false,
showOpenInEditorAction = false,
diffScope = 'all',
onDiffScopeChange,
targetFilePath = null,
flushContent = false,
}) => {
const { t } = useI18n();
const { git, files } = useRuntimeAPIs();
const effectiveDirectory = useEffectiveDirectory();
const { screenWidth, isMobile } = useDeviceInfo();
const isGitRepo = useIsGitRepo(effectiveDirectory ?? null);
const status = useGitStatus(effectiveDirectory ?? null);
const isLoadingStatus = useGitLoadingStatus(effectiveDirectory ?? null);
const setActiveDirectory = useGitStore((state) => state.setActiveDirectory);
const ensureStatus = useGitStore((state) => state.ensureStatus);
const fetchStatus = useGitStore((state) => state.fetchStatus);
const setDiff = useGitStore((state) => state.setDiff);
const [displayFile, setDisplayFile] = React.useState<string | null>(null);
const [displayFileStaged, setDisplayFileStaged] = React.useState(false);
const [pinnedStackedTarget, setPinnedStackedTarget] = React.useState<string | null>(null);
const [expandedFiles, setExpandedFiles] = React.useState<Set<string>>(() => new Set());
const [mountedStackedFiles, setMountedStackedFiles] = React.useState<Set<string>>(() => new Set());
const [loadFullFiles, setLoadFullFiles] = React.useState(false);
const [scrollRequestNonce, setScrollRequestNonce] = React.useState(0);
const [reviewDialogOpen, setReviewDialogOpen] = React.useState(false);
const [reviewFlowSubmitting, setReviewFlowSubmitting] = React.useState(false);
const pendingDiffFile = useUIStore((state) => state.pendingDiffFile);
const pendingDiffStaged = useUIStore((state) => state.pendingDiffStaged);
const setPendingDiffFile = useUIStore((state) => state.setPendingDiffFile);
const diffLayoutPreference = useUIStore((state) => state.diffLayoutPreference);
const diffFileLayout = useUIStore((state) => state.diffFileLayout);
const setDiffFileLayout = useUIStore((state) => state.setDiffFileLayout);
const diffWrapLinesStore = useUIStore((state) => state.diffWrapLines);
const setDiffWrapLines = useUIStore((state) => state.setDiffWrapLines);
const openContextFileAtLine = useUIStore((state) => state.openContextFileAtLine);
const currentSessionId = useSessionUIStore((state) => state.currentSessionId);
const diffWrapLines = diffWrapLinesStore;
const forcedStaged = diffScope === 'staged' ? true : diffScope === 'working' ? false : null;
const activeDiffStaged = forcedStaged ?? displayFileStaged;
const isMobileLayout = isMobile || screenWidth <= 768;
const showReviewAction = Boolean(currentSessionId) && !isMobileLayout && !isVSCodeRuntime();
const showFileSidebar = !hideStackedFileSidebar && !isMobileLayout && screenWidth >= 1024;
const diffScrollRef = React.useRef<HTMLElement | null>(null);
const fileSectionRefs = React.useRef(new Map<string, HTMLDivElement | null>());
const pendingScrollTargetRef = React.useRef<string | null>(null);
const pendingScrollFrameRef = React.useRef<number | null>(null);
const shouldPinAfterAlignRef = React.useRef(false);
const visibleSyncFrameRef = React.useRef<number | null>(null);
const stackedStateScopeRef = React.useRef<string | null>(null);
const cancelPendingScrollAlignment = React.useCallback(() => {
pendingScrollTargetRef.current = null;
shouldPinAfterAlignRef.current = false;
setPinnedStackedTarget(null);
if (pendingScrollFrameRef.current !== null) {
window.cancelAnimationFrame(pendingScrollFrameRef.current);
pendingScrollFrameRef.current = null;
}
}, []);
const expandStackedFile = React.useCallback((path: string) => {
setExpandedFiles((previous) => {
if (previous.has(path)) {
return previous;
}
const next = new Set(previous);
next.add(path);
return next;
});
}, []);
const changedFiles: FileEntry[] = React.useMemo(() => {
if (!status?.files) return [];
const diffStats = status.diffStats ?? {};
const includeFile = diffScope === 'staged'
? isStagedStatusFile
: diffScope === 'working'
? isWorkingStatusFile
: () => true;
return status.files
.filter(includeFile)
.map((file) => ({
...file,
insertions: diffStats[file.path]?.insertions ?? 0,
deletions: diffStats[file.path]?.deletions ?? 0,
isNew: isNewStatusFile(file),
}))
.sort((a, b) => a.path.localeCompare(b.path));
}, [diffScope, status]);
const workingFileCount = React.useMemo(() => {
if (!status?.files) return 0;
return status.files.filter(isWorkingStatusFile).length;
}, [status]);
const stagedFileCount = React.useMemo(() => {
if (!status?.files) return 0;
return status.files.filter(isStagedStatusFile).length;
}, [status]);
const changedFilePathsKey = React.useMemo(
() => changedFiles.map((file) => file.path).join('\0'),
[changedFiles],
);
React.useEffect(() => {
const paths = changedFilePathsKey ? changedFilePathsKey.split('\0') : [];
const pathSet = new Set(paths);
const scopeKey = `${effectiveDirectory ?? ''}:${diffScope}:${stackedDefaultCollapsedAll ? 'collapsed' : 'default'}`;
const shouldInitialize = stackedStateScopeRef.current !== scopeKey;
stackedStateScopeRef.current = scopeKey;
setExpandedFiles((previous) => {
if (shouldInitialize) {
const defaultExpandedCount = stackedDefaultCollapsedAll
? 0
: getStackedViewDefaultExpandedCount(paths.length);
return new Set(paths.slice(0, defaultExpandedCount));
}
let changed = false;
const next = new Set<string>();
for (const path of previous) {
if (!pathSet.has(path)) {
changed = true;
continue;
}
next.add(path);
}
return changed ? next : previous;
});
setMountedStackedFiles((previous) => {
if (shouldInitialize) {
return new Set();
}
let changed = false;
const next = new Set<string>();
for (const path of previous) {
if (!pathSet.has(path)) {
changed = true;
continue;
}
next.add(path);
}
return changed ? next : previous;
});
}, [changedFilePathsKey, diffScope, effectiveDirectory, stackedDefaultCollapsedAll]);
const syncVisibleStackedFiles = React.useCallback(() => {
visibleSyncFrameRef.current = null;
const scrollRoot = diffScrollRef.current;
if (!scrollRoot) return;
const rootRect = scrollRoot.getBoundingClientRect();
const top = rootRect.top - STACKED_DIFF_MOUNT_MARGIN;
const bottom = rootRect.bottom + STACKED_DIFF_MOUNT_MARGIN;
const next: Record<string, boolean> = {};
for (const [path, node] of fileSectionRefs.current) {
if (!node || !expandedFiles.has(path)) continue;
const rect = node.getBoundingClientRect();
if (rect.bottom < top || rect.top > bottom) continue;
next[path] = true;
}
setMountedStackedFiles((previous) => {
let changed = false;
const mounted = new Set(previous);
for (const path of Object.keys(next)) {
if (mounted.has(path)) continue;
mounted.add(path);
changed = true;
}
return changed ? mounted : previous;
});
}, [expandedFiles]);
const queueVisibleStackedFilesSync = React.useCallback(() => {
if (typeof window === 'undefined') return;
if (visibleSyncFrameRef.current !== null) return;
visibleSyncFrameRef.current = window.requestAnimationFrame(syncVisibleStackedFiles);
}, [syncVisibleStackedFiles]);
React.useEffect(() => {
const scrollRoot = diffScrollRef.current;
if (!scrollRoot) return;
queueVisibleStackedFilesSync();
scrollRoot.addEventListener('scroll', queueVisibleStackedFilesSync, { passive: true });
window.addEventListener('resize', queueVisibleStackedFilesSync);
return () => {
scrollRoot.removeEventListener('scroll', queueVisibleStackedFilesSync);
window.removeEventListener('resize', queueVisibleStackedFilesSync);
if (visibleSyncFrameRef.current !== null) {
window.cancelAnimationFrame(visibleSyncFrameRef.current);
visibleSyncFrameRef.current = null;
}
};
}, [changedFiles, expandedFiles, queueVisibleStackedFilesSync]);
const getLayoutForFile = React.useCallback((file: FileEntry): 'inline' | 'side-by-side' => {
const override = diffFileLayout[file.path];
if (override) return override;
if (diffLayoutPreference === 'inline') {
return 'inline';
}
if (diffLayoutPreference === 'side-by-side') {
return 'side-by-side';
}
const isNarrow = screenWidth < SIDE_BY_SIDE_MIN_WIDTH;
if (file.isNew || isNarrow) {
return 'inline';
}
return 'side-by-side';
}, [diffFileLayout, diffLayoutPreference, screenWidth]);
const currentLayoutForAllFiles = React.useMemo<'inline' | 'side-by-side' | null>(() => {
if (changedFiles.length === 0) return null;
return changedFiles.every((file) => getLayoutForFile(file) === 'side-by-side')
? 'side-by-side'
: 'inline';
}, [changedFiles, getLayoutForFile]);
// Ensure git status on mount
React.useEffect(() => {
if (effectiveDirectory) {
setActiveDirectory(effectiveDirectory);
void ensureStatus(effectiveDirectory, git);
}
}, [effectiveDirectory, setActiveDirectory, ensureStatus, git]);
React.useEffect(() => {
if (!effectiveDirectory) {
return;
}
return sessionEvents.onGitRefreshHint((hint) => {
if (normalizePath(hint.directory) !== normalizePath(effectiveDirectory)) {
return;
}
void fetchStatus(effectiveDirectory, git);
});
}, [effectiveDirectory, fetchStatus, git]);
// Handle pending diff file from external navigation
React.useEffect(() => {
if (diffScope !== 'all') {
return;
}
if (pendingDiffFile) {
setDisplayFile(pendingDiffFile);
setDisplayFileStaged(pendingDiffStaged);
setPendingDiffFile(null);
shouldPinAfterAlignRef.current = true;
pendingScrollTargetRef.current = pendingDiffFile;
expandStackedFile(pendingDiffFile);
setScrollRequestNonce((value) => value + 1);
}
}, [diffScope, expandStackedFile, pendingDiffFile, pendingDiffStaged, setPendingDiffFile]);
React.useEffect(() => {
if (diffScope === 'all') {
return;
}
const normalizedTarget = targetFilePath?.trim();
if (!normalizedTarget) {
return;
}
setDisplayFile(normalizedTarget);
setDisplayFileStaged(diffScope === 'staged');
shouldPinAfterAlignRef.current = true;
pendingScrollTargetRef.current = normalizedTarget;
expandStackedFile(normalizedTarget);
setScrollRequestNonce((value) => value + 1);
}, [diffScope, expandStackedFile, targetFilePath]);
React.useEffect(() => {
if (!displayFile) {
return;
}
const stillExists = changedFiles.some((file) => file.path === displayFile);
if (!stillExists) {
setDisplayFile(null);
setDisplayFileStaged(false);
}
}, [changedFiles, displayFile]);
const registerSectionRef = React.useCallback((path: string, node: HTMLDivElement | null) => {
const map = fileSectionRefs.current;
if (node) {
map.set(path, node);
} else {
map.delete(path);
}
queueVisibleStackedFilesSync();
}, [queueVisibleStackedFilesSync]);
const handleStackedEntryExpandedChange = React.useCallback((path: string, expanded: boolean) => {
cancelPendingScrollAlignment();
setExpandedFiles((previous) => {
const hasPath = previous.has(path);
if (expanded === hasPath) {
return previous;
}
const next = new Set(previous);
if (expanded) {
next.add(path);
} else {
next.delete(path);
}
return next;
});
if (!expanded) {
setMountedStackedFiles((previous) => {
if (!previous.has(path)) return previous;
const next = new Set(previous);
next.delete(path);
return next;
});
}
queueVisibleStackedFilesSync();
}, [cancelPendingScrollAlignment, queueVisibleStackedFilesSync]);
const handleExpandOrCollapseAll = React.useCallback(() => {
cancelPendingScrollAlignment();
setExpandedFiles((previous) => {
if (previous.size > 0) {
return new Set();
}
return new Set(changedFiles.map((file) => file.path));
});
setMountedStackedFiles(new Set());
queueVisibleStackedFilesSync();
}, [cancelPendingScrollAlignment, changedFiles, queueVisibleStackedFilesSync]);
const handleStartReviewFlow = React.useCallback(async (execution: ReviewFlowExecution) => {
if (!currentSessionId) return;
const directory = useSessionUIStore.getState().getDirectoryForSession(currentSessionId) || effectiveDirectory || '';
if (!directory) {
toast.error(t('diffView.reviewDialog.toast.noSessionDirectory'));
return;
}
setReviewFlowSubmitting(true);
try {
await startReviewFlow({
originalSessionID: currentSessionId,
directory,
providerID: execution.providerID,
modelID: execution.modelID,
agent: execution.agent || undefined,
variant: execution.variant || undefined,
generateHandoff: execution.generateHandoff,
returnAfterHandoffRequest: execution.generateHandoff,
});
setReviewDialogOpen(false);
} catch (error) {
console.error('[review-flow] failed to start review flow', error);
toast.error(error instanceof Error ? error.message : t('diffView.reviewDialog.toast.startFailed'));
} finally {
setReviewFlowSubmitting(false);
}
}, [currentSessionId, effectiveDirectory, t]);
const scrollToFile = React.useCallback((path: string): boolean => {
const node = fileSectionRefs.current.get(path);
const scrollRoot = diffScrollRef.current;
if (!node || !scrollRoot) {
return false;
}
const rootRect = scrollRoot.getBoundingClientRect();
const nodeRect = node.getBoundingClientRect();
const delta = nodeRect.top - rootRect.top;
const maxTop = Math.max(0, scrollRoot.scrollHeight - scrollRoot.clientHeight);
scrollRoot.scrollTop = Math.min(maxTop, Math.max(0, scrollRoot.scrollTop + delta));
return true;
}, []);
React.useEffect(() => {
const target = pendingScrollTargetRef.current;
if (!target) return;
let attempts = 0;
const maxAttempts = 20;
let cancelled = false;
const cancelPending = () => {
if (cancelled) {
return;
}
cancelled = true;
pendingScrollTargetRef.current = null;
shouldPinAfterAlignRef.current = false;
setPinnedStackedTarget(null);
if (pendingScrollFrameRef.current !== null) {
window.cancelAnimationFrame(pendingScrollFrameRef.current);
pendingScrollFrameRef.current = null;
}
};
const tryAlign = () => {
if (cancelled) {
pendingScrollFrameRef.current = null;
return;
}
const currentTarget = pendingScrollTargetRef.current;
if (!currentTarget) {
cancelPending();
pendingScrollFrameRef.current = null;
return;
}
const result = scrollToFile(currentTarget);
if (!result) {
attempts += 1;
if (attempts < maxAttempts) {
pendingScrollFrameRef.current = window.requestAnimationFrame(tryAlign);
} else {
cancelPending();
pendingScrollFrameRef.current = null;
}
return;
}
if (pinSelectedFileHeaderToTopOnNavigate && shouldPinAfterAlignRef.current) {
setPinnedStackedTarget(currentTarget);
}
cancelPending();
};
pendingScrollFrameRef.current = window.requestAnimationFrame(tryAlign);
return () => {
cancelled = true;
if (pendingScrollFrameRef.current !== null) {
window.cancelAnimationFrame(pendingScrollFrameRef.current);
pendingScrollFrameRef.current = null;
}
};
}, [pinSelectedFileHeaderToTopOnNavigate, scrollRequestNonce, scrollToFile]);
const handleSelectFile = React.useCallback((value: string) => {
void value;
}, []);
const handleSelectFileAndScroll = React.useCallback((value: string) => {
cancelPendingScrollAlignment();
setDisplayFile(value);
setDisplayFileStaged(false);
shouldPinAfterAlignRef.current = true;
pendingScrollTargetRef.current = value;
expandStackedFile(value);
setScrollRequestNonce((nonce) => nonce + 1);
scrollToFile(value);
}, [cancelPendingScrollAlignment, expandStackedFile, scrollToFile]);
const handleHeaderLayoutChange = React.useCallback((mode: DiffViewMode) => {
const nextLayout: 'inline' | 'side-by-side' =
mode === 'side-by-side' ? 'side-by-side' : 'inline';
changedFiles.forEach((file) => {
setDiffFileLayout(file.path, nextLayout);
});
}, [changedFiles, setDiffFileLayout]);
const [openingEditorFilePath, setOpeningEditorFilePath] = React.useState<string | null>(null);
const openFileInEditorAtChange = React.useCallback(async (filePath: string, cachedDiffData: DiffData | null) => {
if (!effectiveDirectory || !filePath) {
return;
}
setOpeningEditorFilePath(filePath);
try {
let targetLine: number | null = null;
if (cachedDiffData && !cachedDiffData.isBinary && !isImageFile(filePath)) {
targetLine = getFirstChangedModifiedLine(cachedDiffData.original, cachedDiffData.modified);
}
if (targetLine === null) {
try {
const patchResponse = await git.getGitDiff(effectiveDirectory, {
path: filePath,
staged: activeDiffStaged,
contextLines: 3,
});
targetLine = getFirstVisibleModifiedLineFromPatch(patchResponse.diff);
} catch {
targetLine = null;
}
}
let diffForNavigation = cachedDiffData;
if (targetLine === null || !diffForNavigation) {
const response = await git.getGitFileDiff(effectiveDirectory, { path: filePath, staged: activeDiffStaged });
diffForNavigation = {
original: response.original ?? '',
modified: response.modified ?? '',
isBinary: response.isBinary,
};
if (!activeDiffStaged) {
setDiff(effectiveDirectory, filePath, diffForNavigation);
}
}
const resolvedTargetLine = targetLine ?? ((diffForNavigation.isBinary || isImageFile(filePath))
? 1
: getFirstChangedModifiedLine(diffForNavigation.original, diffForNavigation.modified));
const absolutePath = toAbsolutePath(effectiveDirectory, filePath);
const openValidation = await validateContextFileOpen(files, absolutePath);
if (!openValidation.ok) {
toast.error(getContextFileOpenFailureMessage(openValidation.reason));
return;
}
openContextFileAtLine(
effectiveDirectory,
absolutePath,
resolvedTargetLine,
1,
);
} finally {
setOpeningEditorFilePath((current) => (current === filePath ? null : current));
}
}, [activeDiffStaged, effectiveDirectory, files, git, openContextFileAtLine, setDiff]);
const renderStackedDiffView = () => {
if (!effectiveDirectory) return null;
const getFileStaged = (path: string) => {
if (forcedStaged !== null) {
return forcedStaged;
}
return displayFileStaged && path === displayFile;
};
return (
<div className={cn('flex flex-1 min-h-0 h-full', flushContent ? 'gap-0' : 'gap-3 px-3 pb-3 pt-2')}>
{showFileSidebar && (
<section className="hidden lg:flex w-72 flex-col rounded-xl border border-border/60 bg-background/70 overflow-hidden">
<div className="flex items-center justify-between px-3 py-1.5 border-b border-border/40">
<span className="typography-ui-header font-semibold text-foreground">{t('diffView.section.files')}</span>
<span className="typography-meta text-muted-foreground">{changedFiles.length}</span>
</div>
<FileList
changedFiles={changedFiles}
selectedFile={null}
onSelectFile={handleSelectFileAndScroll}
/>
</section>
)}
<div className="relative flex-1 min-h-0 h-full">
<ScrollableOverlay
ref={diffScrollRef}
outerClassName="min-h-0 h-full"
className="[overflow-anchor:none] pb-16"
disableHorizontal
observeMutations={false}
preventOverscroll
data-diff-virtual-root
>
<div className="flex flex-col [overflow-anchor:none]" data-diff-virtual-content>
{changedFiles.map((file) => (
<MultiFileDiffEntry
key={file.path}
directory={effectiveDirectory}
file={file}
layout={getLayoutForFile(file)}
wrapLines={diffWrapLines}
isSelected={false}
isExpanded={expandedFiles.has(file.path)}
isMounted={mountedStackedFiles.has(file.path) || file.path === pinnedStackedTarget}
onSelect={handleSelectFile}
onExpandedChange={handleStackedEntryExpandedChange}
registerSectionRef={registerSectionRef}
showOpenInEditorAction={showOpenInEditorAction}
isOpeningInEditor={openingEditorFilePath === file.path}
onOpenInEditor={(filePath, diffData) => {
void openFileInEditorAtChange(filePath, diffData);
}}
staged={getFileStaged(file.path)}
loadFullFiles={loadFullFiles}
/>
))}
</div>
</ScrollableOverlay>
</div>
</div>
);
};
const renderContent = () => {
if (!effectiveDirectory) {
return (
<div className="flex flex-1 items-center justify-center text-sm text-muted-foreground">
{t('diffView.state.selectSessionDirectory')}
</div>
);
}
if (isLoadingStatus && !status) {
return (
<div className="flex flex-1 items-center justify-center gap-2 text-sm text-muted-foreground">
<Icon name="loader-4" className="size-4 animate-spin" />
{t('diffView.state.loadingRepositoryStatus')}
</div>
);
}
if (isGitRepo === false) {
return (
<div className="flex flex-1 items-center justify-center text-sm text-muted-foreground">
{t('diffView.state.notGitRepository')}
</div>
);
}
if (changedFiles.length === 0) {
return (
<div className="flex flex-1 items-center justify-center text-sm text-muted-foreground">
{t('diffView.state.cleanWorkingTree')}
</div>
);
}
return renderStackedDiffView();
};
return (
<div className="flex h-full flex-col overflow-hidden bg-background">
<div className="@container/diff-toolbar flex min-w-0 items-center gap-2 px-3 py-2 bg-background">
{!isMobile && (
diffScope === 'working' || diffScope === 'staged' ? (
<ChangeScopeSelector
scope={diffScope}
workingCount={workingFileCount}
stagedCount={stagedFileCount}
onScopeChange={onDiffScopeChange}
/>
) : (
<div className="flex items-center gap-1 rounded-md px-2 py-1 text-muted-foreground shrink-0">
<span className="typography-ui-label font-semibold text-foreground">
{isLoadingStatus && !status
? t('diffView.state.loadingChanges')
: (changedFiles.length === 1
? t('diffView.summary.changedFilesSingle', { count: changedFiles.length })
: t('diffView.summary.changedFilesPlural', { count: changedFiles.length }))}
</span>
</div>
)
)}
{changedFiles.length > 0 && (
<Button
variant="ghost"
size="sm"
onClick={handleExpandOrCollapseAll}
className={cn(
'diff-toolbar__expand-button h-7 flex-shrink-0 gap-1 px-1.5 text-muted-foreground hover:text-foreground',
'ml-auto',
)}
title={expandedFiles.size > 0 ? t('diffView.actions.collapseAll') : t('diffView.actions.expandAll')}
>
<Icon
name="expand-up-down"
className="size-4"
/>
<span className="diff-toolbar__expand-label typography-ui-label">
{expandedFiles.size > 0 ? t('diffView.actions.collapseAll') : t('diffView.actions.expandAll')}
</span>
</Button>
)}
{changedFiles.length > 0 && showReviewAction && (
<Button
variant="default"
size="sm"
onClick={() => setReviewDialogOpen(true)}
disabled={reviewFlowSubmitting}
className="diff-toolbar__review-button h-7 flex-shrink-0 gap-1.5 px-2"
aria-label={t('diffView.actions.reviewAria')}
>
{reviewFlowSubmitting ? (
<Icon name="loader-4" className="size-4 animate-spin" />
) : (
<Icon name="search-eye" className="size-4" />
)}
<span className="diff-toolbar__review-label typography-ui-label">
{t('diffView.actions.review')}
</span>
</Button>
)}
{changedFiles.length > 0 && (
<Tooltip>
<TooltipTrigger asChild>
<Button
variant="ghost"
size="sm"
onClick={() => setLoadFullFiles((value) => !value)}
aria-pressed={loadFullFiles}
aria-label={loadFullFiles ? t('diffView.actions.disableFullFiles') : t('diffView.actions.loadFullFiles')}
className={cn(
'h-7 w-7 flex-shrink-0 p-0 text-muted-foreground hover:text-foreground',
loadFullFiles && 'bg-interactive-selection text-interactive-selection-foreground',
)}
>
<Icon name="file-download" className="size-4" />
</Button>
</TooltipTrigger>
<TooltipContent>
<p>{loadFullFiles ? t('diffView.actions.disableFullFiles') : t('diffView.actions.loadFullFiles')}</p>
</TooltipContent>
</Tooltip>
)}
{changedFiles.length > 0 && (
<Button
variant="ghost"
size="sm"
onClick={() => setDiffWrapLines(!diffWrapLinesStore)}
className={cn(
'h-5 w-5 p-0 transition-opacity',
diffWrapLines ? 'text-foreground opacity-100' : 'text-muted-foreground opacity-60 hover:opacity-100'
)}
title={diffWrapLines ? t('diffView.actions.disableLineWrap') : t('diffView.actions.enableLineWrap')}
>
<Icon name="text-wrap" className="size-4" />
</Button>
)}
{currentLayoutForAllFiles && (
<DiffViewToggle
mode={currentLayoutForAllFiles === 'side-by-side' ? 'side-by-side' : 'unified'}
onModeChange={handleHeaderLayoutChange}
/>
)}
</div>
<ReviewFlowDialog
open={reviewDialogOpen}
onOpenChange={setReviewDialogOpen}
projectDirectory={effectiveDirectory ?? null}
submitting={reviewFlowSubmitting}
onConfirm={handleStartReviewFlow}
/>
{renderContent()}
</div>
);
};
// eslint-disable-next-line react-refresh/only-export-components
export const useDiffFileCount = (): number => {
const { git } = useRuntimeAPIs();
const effectiveDirectory = useEffectiveDirectory();
const setActiveDirectory = useGitStore((state) => state.setActiveDirectory);
const ensureStatus = useGitStore((state) => state.ensureStatus);
const fileCount = useGitFileCount(effectiveDirectory ?? null);
React.useEffect(() => {
if (effectiveDirectory) {
setActiveDirectory(effectiveDirectory);
void ensureStatus(effectiveDirectory, git);
}
}, [effectiveDirectory, setActiveDirectory, ensureStatus, git]);
return fileCount;
};