Merge pull request #2534 from openchamber/feat/bc-38abb61a-bce6-4a01-a189-c569346927fa-33b6

fix(files): stop autosave data loss on load lag and binary files
This commit is contained in:
Serhii Dziupin
2026-07-30 16:21:59 +03:00
committed by GitHub
43 changed files with 778 additions and 80 deletions
@@ -868,7 +868,7 @@ export const SidebarFilesTree: React.FC = () => {
const handleOpenFile = React.useCallback(async (node: FileNode) => {
if (!root) return;
const openValidation = await validateContextFileOpen(files, node.path);
const openValidation = await validateContextFileOpen(files, node.path, { directory: root });
if (!openValidation.ok) {
toast.error(getContextFileOpenFailureMessage(openValidation.reason));
return;
@@ -146,6 +146,7 @@ const GeneralSectionContent: React.FC = () => {
{!isVSCode && <OpenCodeCliSettings />}
<OpenChamberVisualSettings visibleSettings={[
'fileEditorKeymap',
'autoSaveEnabled',
'expandedEditorToolbar',
...(!isVSCode ? ['terminalQuickKeys' as const] : []),
...(!isVSCode ? ['terminalShell' as const] : []),
@@ -279,7 +279,7 @@ const normalizeUserMessageRenderingMode = (mode: unknown): 'markdown' | 'plain'
return mode === 'markdown' ? 'markdown' : 'plain';
};
type VisibleSetting = 'sessionAssist' | 'sessionGoal' | 'theme' | 'windowControlsPosition' | 'pwaInstallName' | 'pwaOrientation' | 'mobileKeyboardMode' | 'timeFormat' | 'weekStart' | 'fontSize' | 'terminalFontSize' | 'terminalShell' | 'terminalLoginShell' | 'editorFontSize' | 'spacing' | 'inputBarOffset' | 'mermaidRendering' | 'userMessageRendering' | 'chatRenderMode' | 'messageTransport' | 'activityRenderMode' | 'collapsibleUserMessages' | 'stickyUserHeader' | 'promptNavigatorEnabled' | 'wideChatLayout' | 'codeBlockLineWrap' | 'splitAssistantMessageActions' | 'subagentReadOnlyBanner' | 'diffLayout' | 'mobileStatusBar' | 'dotfiles' | 'fileViewerPreview' | 'reasoning' | 'showToolFileIcons' | 'showTurnChangedFiles' | 'expandedTools' | 'followUpBehavior' | 'terminalQuickKeys' | 'fileEditorKeymap' | 'persistDraft' | 'inputSpellcheck' | 'reportUsage' | 'expandedEditorToolbar';
type VisibleSetting = 'sessionAssist' | 'sessionGoal' | 'theme' | 'windowControlsPosition' | 'pwaInstallName' | 'pwaOrientation' | 'mobileKeyboardMode' | 'timeFormat' | 'weekStart' | 'fontSize' | 'terminalFontSize' | 'terminalShell' | 'terminalLoginShell' | 'editorFontSize' | 'spacing' | 'inputBarOffset' | 'mermaidRendering' | 'userMessageRendering' | 'chatRenderMode' | 'messageTransport' | 'activityRenderMode' | 'collapsibleUserMessages' | 'stickyUserHeader' | 'promptNavigatorEnabled' | 'wideChatLayout' | 'codeBlockLineWrap' | 'splitAssistantMessageActions' | 'subagentReadOnlyBanner' | 'diffLayout' | 'mobileStatusBar' | 'dotfiles' | 'fileViewerPreview' | 'reasoning' | 'showToolFileIcons' | 'showTurnChangedFiles' | 'expandedTools' | 'followUpBehavior' | 'terminalQuickKeys' | 'fileEditorKeymap' | 'persistDraft' | 'inputSpellcheck' | 'reportUsage' | 'expandedEditorToolbar' | 'autoSaveEnabled';
const WINDOW_CONTROLS_POSITION_OPTIONS: Array<{ id: DesktopWindowControlsPosition; labelKey: string }> = [
{ id: 'left', labelKey: 'settings.openchamber.desktopNetwork.option.windowControlsLeft' },
@@ -330,6 +330,8 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
const setPromptNavigatorEnabled = useUIStore(state => state.setPromptNavigatorEnabled);
const expandedEditorToolbar = useUIStore(state => state.expandedEditorToolbar);
const setExpandedEditorToolbar = useUIStore(state => state.setExpandedEditorToolbar);
const autoSaveEnabled = useUIStore(state => state.autoSaveEnabled);
const setAutoSaveEnabled = useUIStore(state => state.setAutoSaveEnabled);
const wideChatLayoutEnabled = useUIStore(state => state.wideChatLayoutEnabled);
const setWideChatLayoutEnabled = useUIStore(state => state.setWideChatLayoutEnabled);
const codeBlockLineWrap = useUIStore(state => state.codeBlockLineWrap);
@@ -643,7 +645,7 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
? hasLocalizationSettings
: (shouldShow('theme') || showWindowControlsPositionSetting || showMobileLayoutSetting || shouldShow('pwaInstallName') || shouldShow('pwaOrientation') || shouldShow('timeFormat') || shouldShow('weekStart'));
const hasLayoutSettings = shouldShow('fontSize') || shouldShow('terminalFontSize') || shouldShow('editorFontSize') || shouldShow('spacing') || (shouldShow('inputBarOffset') && isMobile);
const hasNavigationSettings = (shouldShow('terminalQuickKeys') && !isMobile) || ((shouldShow('terminalShell') || shouldShow('terminalLoginShell')) && !isVSCode) || shouldShow('fileEditorKeymap') || (shouldShow('expandedEditorToolbar') && !isVSCode);
const hasNavigationSettings = (shouldShow('terminalQuickKeys') && !isMobile) || ((shouldShow('terminalShell') || shouldShow('terminalLoginShell')) && !isVSCode) || shouldShow('fileEditorKeymap') || shouldShow('autoSaveEnabled') || (shouldShow('expandedEditorToolbar') && !isVSCode);
const hasBehaviorSettings = shouldShow('mermaidRendering')
|| (shouldShow('sessionGoal') && !isVSCode)
|| shouldShow('userMessageRendering')
@@ -1515,6 +1517,16 @@ export const OpenChamberVisualSettings: React.FC<OpenChamberVisualSettingsProps>
</SettingsControlGroup>
)}
<div className={SETTINGS_OPTION_STACK_CLASS}>
{shouldShow('autoSaveEnabled') && (
<SettingsCheckboxRow
checked={autoSaveEnabled}
onChange={setAutoSaveEnabled}
label={t('settings.openchamber.visual.field.autoSaveEnabled')}
ariaLabel={t('settings.openchamber.visual.field.autoSaveEnabledAria')}
info={t('settings.openchamber.visual.field.autoSaveEnabledInfo')}
settingsItem="appearance.auto-save-enabled"
/>
)}
{shouldShow('expandedEditorToolbar') && !isVSCode && (
<SettingsCheckboxRow
checked={expandedEditorToolbar}
@@ -455,7 +455,7 @@ export const CommandPalette: React.FC = () => {
const handleOpenFile = React.useCallback(
async (filePath: string) => {
if (!currentRoot) return;
const validation = await validateContextFileOpen(filesApi, filePath);
const validation = await validateContextFileOpen(filesApi, filePath, { directory: currentRoot });
if (!validation.ok) {
toast.error(getContextFileOpenFailureMessage(validation.reason));
return;
@@ -1537,7 +1537,7 @@ export const DiffView: React.FC<DiffViewProps> = ({
: getFirstChangedModifiedLine(diffForNavigation.original, diffForNavigation.modified));
const absolutePath = toAbsolutePath(effectiveDirectory, filePath);
const openValidation = await validateContextFileOpen(files, absolutePath);
const openValidation = await validateContextFileOpen(files, absolutePath, { directory: effectiveDirectory });
if (!openValidation.ok) {
toast.error(getContextFileOpenFailureMessage(openValidation.reason));
return;
+128 -47
View File
@@ -44,7 +44,8 @@ import { useDebouncedValue } from '@/hooks/useDebouncedValue';
import { useFileSearchStore } from '@/stores/useFileSearchStore';
import { useDeviceInfo } from '@/lib/device';
import { cn, getModifierLabel, getRevealLabelKey, hasModifier } from '@/lib/utils';
import { getLanguageFromExtension, getImageMimeType, isDrawioFile, isImageFile, isPdfFile } from '@/lib/toolHelpers';
import { getLanguageFromExtension, getImageMimeType, isBinaryFile, isDrawioFile, isImageFile, isPdfFile, isSvgFile, looksLikeBinaryText } from '@/lib/toolHelpers';
import { shouldAllowFileDraftSave, shouldScheduleFileAutosave } from '@/lib/fileEditorAutosave';
import { getRuntimeUrlResolver } from '@/lib/runtime-url';
import { acquireRuntimeUrlAuthToken, refreshRuntimeUrlAuthToken, subscribeRuntimeUrlAuthToken } from '@/lib/runtime-auth';
import { getRuntimeApiBaseUrl } from '@/lib/runtime-switch';
@@ -304,7 +305,6 @@ const isFileMissingError = (error: unknown): boolean => {
};
const MAX_VIEW_CHARS = 200_000;
const FILE_EDITOR_AUTO_SAVE_KEY = 'openchamber:files:auto-save-enabled';
type FileLineEnding = '\n' | '\r\n';
const detectFileLineEnding = (content: string): FileLineEnding => {
@@ -332,18 +332,6 @@ const serializeEditorContent = (content: string, lineEnding: FileLineEnding): st
return lineEnding === '\r\n' ? normalized.replace(/\n/g, '\r\n') : normalized;
};
const getInitialAutoSaveEnabled = (): boolean => {
if (typeof window === 'undefined') {
return true;
}
try {
return window.localStorage.getItem(FILE_EDITOR_AUTO_SAVE_KEY) !== 'false';
} catch {
return true;
}
};
const getFileIcon = (filePath: string, extension?: string): React.ReactNode => {
return <FileTypeIcon filePath={filePath} extension={extension} />;
};
@@ -924,7 +912,9 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
const loadingFilePathRef = React.useRef<string | null>(null);
const [autoSaveStatus, setAutoSaveStatus] = React.useState<'idle' | 'saved'>('idle');
const [diagramSaved, setDiagramSaved] = React.useState(false);
const [autoSaveEnabled, setAutoSaveEnabled] = React.useState(getInitialAutoSaveEnabled);
const [contentDetectedBinary, setContentDetectedBinary] = React.useState(false);
const autoSaveEnabled = useUIStore((state) => state.autoSaveEnabled);
const setAutoSaveEnabled = useUIStore((state) => state.setAutoSaveEnabled);
const [confirmDiscardOpen, setConfirmDiscardOpen] = React.useState(false);
const pendingSelectFileRef = React.useRef<FileNode | null>(null);
@@ -1626,17 +1616,31 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
return false;
}
if (!isDirty) {
return true;
const selectedIsBinary = isBinaryFile(selectedFile.path) || contentDetectedBinary;
if (!shouldAllowFileDraftSave({
selectedFilePath: selectedFile.path,
loadedFilePath,
fileLoading,
isDirty,
draftContent,
fileContent,
isNonEditableBinary: selectedIsBinary,
})) {
if (selectedIsBinary) {
console.warn(`[saveDraft] refusing to save binary file "${selectedFile.path}".`);
} else if (draftContent === '' && fileContent !== '' && loadedFilePath !== selectedFile.path) {
console.warn(
`[saveDraft] refusing to save empty draft for "${selectedFile.path}" (${fileContent.length} bytes were expected). ` +
'The file may have been read during a concurrent write (O_TRUNC race). ' +
'Try again after content finishes loading if the save was intentional.',
);
}
return false;
}
if (draftContent === '' && fileContent !== '' && loadedFilePath !== selectedFile.path) {
console.warn(
`[saveDraft] refusing to save empty draft for "${selectedFile.path}" (${fileContent.length} bytes were expected). ` +
'The file may have been read during a concurrent write (O_TRUNC race). ' +
'Try again after content finishes loading if the save was intentional.',
);
return false;
// Clean draft: treat as success so discard/save dialogs and Ctrl+S are not stranded.
if (!isDirty) {
return true;
}
setIsSaving(true);
@@ -1668,7 +1672,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
} finally {
setIsSaving(false);
}
}, [draftContent, fileContent, files, isDirty, loadedFileLineEnding, loadedFilePath, readFileStat, selectedFile, t]);
}, [contentDetectedBinary, draftContent, fileContent, fileLoading, files, isDirty, loadedFileLineEnding, loadedFilePath, readFileStat, selectedFile, t]);
React.useEffect(() => {
if (!isDirty) {
@@ -1696,14 +1700,6 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
};
}, [isDirty, setMainTabGuard]);
React.useEffect(() => {
try {
window.localStorage.setItem(FILE_EDITOR_AUTO_SAVE_KEY, autoSaveEnabled ? 'true' : 'false');
} catch {
// Ignore localStorage errors; the in-memory preference still applies.
}
}, [autoSaveEnabled]);
React.useEffect(() => {
if (autoSaveEnabled) {
return;
@@ -1721,7 +1717,17 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
React.useEffect(() => {
const canWrite = Boolean(selectedFile && files.writeFile);
if (!autoSaveEnabled || !isDirty || !canWrite || isSaving) {
const selectedIsBinary = Boolean(selectedFile?.path && (isBinaryFile(selectedFile.path) || contentDetectedBinary));
if (!shouldScheduleFileAutosave({
autoSaveEnabled,
isDirty,
canWrite,
isSaving,
fileLoading,
selectedFilePath: selectedFile?.path,
loadedFilePath,
isNonEditableBinary: selectedIsBinary,
})) {
return;
}
@@ -1739,7 +1745,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
autoSaveTimerRef.current = null;
}
};
}, [autoSaveEnabled, draftContent, isDirty, selectedFile, files.writeFile, isSaving, saveDraft]);
}, [autoSaveEnabled, contentDetectedBinary, draftContent, fileLoading, isDirty, loadedFilePath, selectedFile, files.writeFile, isSaving, saveDraft]);
// Reset auto-save status when switching files
React.useEffect(() => {
@@ -1789,10 +1795,12 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
setFileError(null);
setDesktopImageSrc('');
setLoadedFilePath(null);
setContentDetectedBinary(false);
const selectedIsImage = isImageFile(node.path);
const isSvg = node.path.toLowerCase().endsWith('.svg');
const isSvg = isSvgFile(node.path);
const selectedIsPdf = isPdfFile(node.path);
const selectedIsBinary = isBinaryFile(node.path);
if (isMobile) {
setShowMobilePageContent(true);
@@ -1823,6 +1831,16 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
return;
}
// Other known binaries (docx/xlsx/zip/…) must never be opened as text —
// a later autosave would corrupt them.
if (selectedIsBinary) {
setFileContent('');
setDraftContent('');
setLoadedFilePath(node.path);
setFileLoading(false);
return;
}
setFileLoading(true);
const outsideFileGrant = getOutsideFileGrant(node.path);
@@ -1836,6 +1854,13 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
if (!isCurrentLoad()) {
return;
}
if (looksLikeBinaryText(content)) {
setContentDetectedBinary(true);
setFileContent('');
setDraftContent('');
setLoadedFilePath(node.path);
return;
}
const editorContent = normalizeEditorLineEndings(content);
setLoadedFileLineEnding(detectFileLineEnding(content));
setFileContent(editorContent);
@@ -2302,8 +2327,13 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
}
const isSelectedImage = Boolean(selectedFile?.path && isImageFile(selectedFile.path));
const isSelectedSvg = Boolean(selectedFile?.path && selectedFile.path.toLowerCase().endsWith('.svg'));
const isSelectedSvg = Boolean(selectedFile?.path && isSvgFile(selectedFile.path));
const isSelectedPdf = Boolean(selectedFile?.path && isPdfFile(selectedFile.path));
const isSelectedBinary = Boolean(
selectedFile?.path
&& (isBinaryFile(selectedFile.path) || contentDetectedBinary)
);
const isUnsupportedBinary = isSelectedBinary && !isSelectedImage && !isSelectedPdf;
const pendingNavigationTargetPath = React.useMemo(
() => normalizePath(pendingFileNavigation?.path ?? ''),
[pendingFileNavigation?.path],
@@ -2316,21 +2346,24 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
&& !fileLoading
&& !fileError
&& !isSelectedImage
&& !isSelectedPdf,
&& !isSelectedPdf
&& !isUnsupportedBinary,
);
const displaySelectedPath = React.useMemo(() => {
return getDisplayPath(root, selectedFilePath);
}, [selectedFilePath, root]);
const canCopy = Boolean(selectedFile && (!isSelectedImage || isSelectedSvg) && !isSelectedPdf && fileContent.length > 0);
const canCopy = Boolean(selectedFile && (!isSelectedImage || isSelectedSvg) && !isSelectedPdf && !isUnsupportedBinary && fileContent.length > 0);
const canCopyPath = Boolean(selectedFile && displaySelectedPath.length > 0);
const canEdit = Boolean(selectedFile && !selectedFileIsOutsideWorkspace && !isSelectedImage && !isSelectedPdf && files.writeFile && fileContent.length <= MAX_VIEW_CHARS);
// Keep image/SVG on the preview path: `isBinaryFile` excludes `.svg`, so binary
// alone would flip canEdit/isTextFile true and show a dead edit toggle + no-op Save.
const canEdit = Boolean(selectedFile && !selectedFileIsOutsideWorkspace && !isSelectedBinary && !isSelectedImage && files.writeFile && fileContent.length <= MAX_VIEW_CHARS);
const isMarkdown = Boolean(selectedFile?.path && isMarkdownFile(selectedFile.path));
const isJson = Boolean(selectedFile?.path && isJsonFile(selectedFile.path));
const isHtml = Boolean(selectedFile?.path && isHtmlFile(selectedFile.path));
const isDrawio = Boolean(selectedFile?.path && isDrawioFile(selectedFile.path));
const isTextFile = Boolean(selectedFile && !isSelectedImage && !isSelectedPdf);
const isTextFile = Boolean(selectedFile && !isSelectedBinary && !isSelectedImage);
const canUseShikiFileView = isTextFile && !isMarkdown && !isDrawio && !(isHtml && htmlViewMode === 'preview');
const isEditingFile = (isMarkdown && mdViewMode === 'edit')
|| (isHtml && htmlViewMode === 'edit')
@@ -2535,7 +2568,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
const handleDiagramChange = React.useCallback((xml: string) => {
diagramXmlRef.current = xml;
if (!selectedFile?.path || drawioViewMode !== 'preview' || !files.writeFile) {
if (!autoSaveEnabled || !selectedFile?.path || drawioViewMode !== 'preview' || !files.writeFile) {
return;
}
@@ -2554,7 +2587,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
toast.error(error instanceof Error ? error.message : t('filesView.toast.saveFailed'));
});
}, AUTO_SAVE_DELAY);
}, [drawioViewMode, files.writeFile, saveDiagramXml, selectedFile?.path, t]);
}, [autoSaveEnabled, drawioViewMode, files.writeFile, saveDiagramXml, selectedFile?.path, t]);
const diagramEditorXml = React.useMemo(() => {
if (!isDrawio) {
@@ -2674,7 +2707,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
return;
}
if (fileError || isSelectedImage || isSelectedPdf) {
if (fileError || isSelectedImage || isSelectedPdf || isUnsupportedBinary) {
setPendingFileNavigation(null);
pendingNavigationCycleRef.current = { key: '', attempts: 0 };
return;
@@ -2746,6 +2779,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
fileLoading,
isSelectedImage,
isSelectedPdf,
isUnsupportedBinary,
loadedFilePath,
handleSelectFile,
pendingFileNavigation,
@@ -2783,7 +2817,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
// JSON tree, images, PDFs) never mount a CodeMirror editor, so the request
// must clear regardless — otherwise it lingers and replays on every
// dependency change.
if (!fileError && !isSelectedImage && !isSelectedPdf && canEdit && textViewMode === 'edit') {
if (!fileError && !isSelectedImage && !isSelectedPdf && !isUnsupportedBinary && canEdit && textViewMode === 'edit') {
editorViewRef.current?.focus();
}
@@ -2794,6 +2828,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
fileLoading,
isSelectedImage,
isSelectedPdf,
isUnsupportedBinary,
loadedFilePath,
pendingFileFocusPath,
root,
@@ -3189,7 +3224,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
<Button
variant="ghost"
size="sm"
onClick={() => setAutoSaveEnabled((enabled) => !enabled)}
onClick={() => setAutoSaveEnabled(!autoSaveEnabled)}
className={cn(
'size-6 p-0 transition-opacity hover:bg-transparent focus-visible:bg-transparent active:bg-transparent',
autoSaveEnabled ? 'text-foreground opacity-100' : 'text-muted-foreground opacity-65 hover:opacity-100'
@@ -3245,7 +3280,7 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
</DropdownMenuContent>
</DropdownMenu>
{!isSelectedImage && !isSelectedPdf && (
{!isSelectedImage && !isSelectedPdf && !isUnsupportedBinary && (
<>
{withTooltip(wrapLines ? t('filesView.editor.disableLineWrap') : t('filesView.editor.enableLineWrap'),
<Button
@@ -3826,6 +3861,29 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
</div>
) : isSelectedPdf ? (
renderPdfPreview(selectedFile)
) : isUnsupportedBinary ? (
<div className="flex h-full flex-col items-center justify-center gap-3 p-6 text-center">
<div className="typography-ui-header text-foreground">{t('filesView.editor.cannotPreviewBinary')}</div>
<div className="max-w-md typography-ui text-muted-foreground">{t('filesView.editor.binaryFileDescription')}</div>
{files.downloadFile ? (
<Button
type="button"
variant="outline"
size="sm"
onClick={() => {
const fn = files.downloadFile;
if (!fn || !selectedFile) return;
void fn(selectedFile.path).catch((error) => {
console.error('Download failed:', error);
toast.error(t('sidebarFilesTree.toast.operationFailed'));
});
}}
>
<Icon name="download" className="mr-2 size-4" />
{t('filesView.editor.saveFile')}
</Button>
) : null}
</div>
) : selectedFile && isDrawio && drawioViewMode === 'preview' ? (
<div className="h-full overflow-hidden" style={{ minHeight: '400px' }}>
<DiagramEditor
@@ -4197,6 +4255,29 @@ export const FilesView: React.FC<FilesViewProps> = ({ mode = 'full' }) => {
</div>
) : isSelectedPdf ? (
renderPdfPreview(selectedFile)
) : isUnsupportedBinary ? (
<div className="flex h-full flex-col items-center justify-center gap-3 p-6 text-center">
<div className="typography-ui-header text-foreground">{t('filesView.editor.cannotPreviewBinary')}</div>
<div className="max-w-md typography-ui text-muted-foreground">{t('filesView.editor.binaryFileDescription')}</div>
{files.downloadFile ? (
<Button
type="button"
variant="outline"
size="sm"
onClick={() => {
const fn = files.downloadFile;
if (!fn || !selectedFile) return;
void fn(selectedFile.path).catch((error) => {
console.error('Download failed:', error);
toast.error(t('sidebarFilesTree.toast.operationFailed'));
});
}}
>
<Icon name="download" className="mr-2 size-4" />
{t('filesView.editor.saveFile')}
</Button>
) : null}
</div>
) : isMarkdown && getMdViewMode() === 'preview' ? (
<div className="h-full overflow-auto p-4">
{fileContent.length > 500 * 1024 && (