Carlos Florêncio
432 lines
13 KiB
TypeScript
432 lines
13 KiB
TypeScript
"use client";
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import {
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createContext,
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createElement,
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memo,
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useEffect,
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useContext,
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useMemo,
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useRef,
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useState,
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type HTMLAttributes,
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type ReactNode,
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} from "react";
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import { createPortal } from "react-dom";
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import ReactMarkdown, { type ExtraProps, type Components } from "react-markdown";
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import rehypeRaw from "rehype-raw";
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import rehypeSanitize, { defaultSchema } from "rehype-sanitize";
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import { Button } from "@kandev/ui/button";
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import { Tooltip, TooltipContent, TooltipTrigger } from "@kandev/ui/tooltip";
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import { IconCode, IconMessagePlus } from "@tabler/icons-react";
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import {
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MarkdownTaskContext,
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remarkPlugins,
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markdownComponents,
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} from "@/components/shared/markdown-components";
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import { cn, toRelativePath } from "@/lib/utils";
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import { PanelHeaderBarSplit } from "@/components/task/panel-primitives";
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import { EditorCommentPopover } from "@/components/task/editor-comment-popover";
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import { CommentViewPopover } from "@/components/task/comment-view-popover";
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import { useMarkdownPreviewComments } from "@/hooks/domains/comments/use-markdown-preview-comments";
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import {
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SOURCE_END_ATTR,
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SOURCE_START_ATTR,
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type SourceLineRange,
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} from "@/lib/markdown/source-line-ranges";
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import { commentsBeginInRange, commentsOverlapRange } from "@/lib/markdown/preview-comments";
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import type { DiffComment } from "@/lib/state/slices/comments";
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import {
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ExternalVcsFileLink,
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useExternalVcsFileStatus,
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} from "@/components/editors/external-vcs-file-link";
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interface MarkdownPreviewToolbarProps {
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path: string;
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worktreePath?: string;
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commentCount: number;
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commentsEnabled: boolean;
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taskId?: string | null;
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sessionId?: string;
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repositoryId?: string | null;
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repositoryName?: string;
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showExternalVcsLink: boolean;
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onTogglePreview: () => void;
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}
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function MarkdownPreviewToolbar({
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path,
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worktreePath,
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commentCount,
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commentsEnabled,
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taskId,
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sessionId,
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repositoryId,
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repositoryName,
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showExternalVcsLink,
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onTogglePreview,
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}: MarkdownPreviewToolbarProps) {
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const fileStatus = useExternalVcsFileStatus(path, sessionId, repositoryName);
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return (
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<PanelHeaderBarSplit
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left={
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<div className="flex items-center gap-2 text-xs text-muted-foreground">
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<span className="font-mono">{toRelativePath(path, worktreePath)}</span>
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<span className="text-xs text-muted-foreground/60">Preview</span>
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</div>
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}
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right={
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<div className="flex items-center gap-1">
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{showExternalVcsLink && (
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<ExternalVcsFileLink
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filePath={path}
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previousPath={fileStatus?.old_path}
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status={fileStatus?.status}
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taskId={taskId}
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sessionId={sessionId}
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repositoryId={repositoryName ? undefined : repositoryId}
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repositoryName={repositoryName}
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size="sm"
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/>
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)}
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{commentsEnabled && commentCount > 0 && (
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<div className="flex items-center gap-1 px-2 py-1 text-xs text-primary">
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<IconMessagePlus className="h-3.5 w-3.5" />
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<span>
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{commentCount} comment{commentCount > 1 ? "s" : ""}
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</span>
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</div>
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)}
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<Tooltip>
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<TooltipTrigger asChild>
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<Button
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size="sm"
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variant="ghost"
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onClick={onTogglePreview}
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className="h-8 w-8 p-0 cursor-pointer text-foreground"
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data-testid="markdown-preview-toggle"
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>
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<IconCode className="h-4 w-4" />
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</Button>
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</TooltipTrigger>
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<TooltipContent>Show code</TooltipContent>
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</Tooltip>
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</div>
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}
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/>
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);
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}
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interface MarkdownPreviewContentProps {
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path: string;
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content: string;
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worktreePath?: string;
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sessionId?: string;
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taskId?: string | null;
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repositoryId?: string | null;
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repositoryName?: string;
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enableComments?: boolean;
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showExternalVcsLink?: boolean;
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onTogglePreview: () => void;
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}
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type PositionedNode = {
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position?: {
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start?: { line?: number };
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end?: { line?: number };
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};
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};
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type SourceBlockProps = HTMLAttributes<HTMLElement> &
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ExtraProps & {
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children?: ReactNode;
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node?: PositionedNode;
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tag: keyof HTMLElementTagNameMap;
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};
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type MarkdownSourceBlockProps = Omit<SourceBlockProps, "tag">;
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type PreviewCommentContextValue = {
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comments: DiffComment[];
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showCommentsForRange: (range: SourceLineRange, position: { x: number; y: number }) => void;
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};
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const PreviewCommentContext = createContext<PreviewCommentContextValue | null>(null);
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function sourceRangeFromNode(node: PositionedNode | undefined): SourceLineRange | null {
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const startLine = node?.position?.start?.line;
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const endLine = node?.position?.end?.line ?? startLine;
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if (!startLine || !endLine) return null;
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return { startLine, endLine };
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}
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function sourceDataAttrs(range: SourceLineRange | null) {
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if (!range) return {};
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return {
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[SOURCE_START_ATTR]: range.startLine,
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[SOURCE_END_ATTR]: range.endLine,
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};
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}
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export function isInteractiveSourceClickTarget(target: EventTarget | null): boolean {
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if (!(target instanceof Element)) return false;
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return Boolean(
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target.closest("a, button, input, textarea, select, [role='button'], [contenteditable]"),
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);
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}
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function CommentBadge({
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onClick,
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}: {
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onClick: (event: React.MouseEvent<HTMLButtonElement>) => void;
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}) {
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return (
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<button
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type="button"
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className="markdown-preview-comment-badge"
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data-testid="markdown-preview-comment-badge"
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aria-label="Edit markdown comment"
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onClick={onClick}
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>
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<IconMessagePlus className="h-3 w-3" />
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</button>
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);
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}
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function SourceBlock({ tag, node, children, className, onClick, ...rest }: SourceBlockProps) {
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const commentContext = useContext(PreviewCommentContext);
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const range = sourceRangeFromNode(node);
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const comments = commentContext?.comments ?? [];
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const isCommented = range ? commentsOverlapRange(comments, range) : false;
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const canRenderBadge = tag !== "blockquote" && tag !== "li";
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const hasCommentBadge = canRenderBadge && range ? commentsBeginInRange(comments, range) : false;
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const handleClick = (event: React.MouseEvent<HTMLElement>) => {
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onClick?.(event);
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if (!range || !isCommented || event.defaultPrevented || !commentContext) return;
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if (isInteractiveSourceClickTarget(event.target)) return;
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if (window.getSelection()?.toString().trim()) return;
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commentContext.showCommentsForRange(range, { x: event.clientX, y: event.clientY });
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};
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const handleBadgeClick = (event: React.MouseEvent<HTMLButtonElement>) => {
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if (!range || !commentContext) return;
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event.preventDefault();
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event.stopPropagation();
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commentContext.showCommentsForRange(range, { x: event.clientX, y: event.clientY });
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};
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const element = createElement(
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tag,
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{
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...rest,
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...sourceDataAttrs(range),
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"data-testid": isCommented
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? "markdown-preview-commented-range"
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: "markdown-preview-source-block",
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className: cn(
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"markdown-preview-source-block",
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isCommented && "markdown-preview-commented-range",
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className,
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),
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onClick: handleClick,
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},
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children,
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hasCommentBadge && tag !== "pre" ? <CommentBadge onClick={handleBadgeClick} /> : null,
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);
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if (!hasCommentBadge || tag !== "pre") return element;
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return (
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<div className="markdown-preview-pre-comment-wrapper">
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{element}
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<CommentBadge onClick={handleBadgeClick} />
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</div>
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);
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}
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function MarkdownPreviewTable({ node, children }: MarkdownSourceBlockProps) {
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return (
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<SourceBlock tag="div" node={node} className="overflow-x-auto">
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<table>{children}</table>
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</SourceBlock>
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);
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}
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function sourceComponent(tag: keyof HTMLElementTagNameMap) {
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return function MarkdownPreviewSourceComponent(props: MarkdownSourceBlockProps) {
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return <SourceBlock {...props} tag={tag} />;
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};
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}
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const markdownPreviewComponents: Components = {
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...markdownComponents,
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p: sourceComponent("p"),
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h1: sourceComponent("h1"),
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h2: sourceComponent("h2"),
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h3: sourceComponent("h3"),
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h4: sourceComponent("h4"),
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h5: sourceComponent("h5"),
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h6: sourceComponent("h6"),
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li: sourceComponent("li"),
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blockquote: sourceComponent("blockquote"),
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pre: sourceComponent("pre"),
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table: (props) => <MarkdownPreviewTable {...(props as MarkdownSourceBlockProps)} />,
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};
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type MarkdownPreviewCommentState = ReturnType<typeof useMarkdownPreviewComments>;
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function MarkdownPreviewCommentOverlays({
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commentsEnabled,
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overlayRoot,
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commentState,
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}: {
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commentsEnabled: boolean;
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overlayRoot: HTMLElement | null;
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commentState: MarkdownPreviewCommentState;
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}) {
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if (!commentsEnabled || !overlayRoot) return null;
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return createPortal(
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<>
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{commentState.currentSelection && !commentState.textSelection && (
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<Button
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size="sm"
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variant="secondary"
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className="floating-comment-btn fixed z-50 min-h-11 gap-1.5 shadow-lg animate-in fade-in-0 zoom-in-95 duration-100 cursor-pointer sm:min-h-8"
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style={{
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left: commentState.currentSelection.position.x + 8,
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top: commentState.currentSelection.position.y + 8,
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}}
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data-testid="markdown-preview-comment-button"
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onMouseDown={(event) => event.stopPropagation()}
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onClick={commentState.openComposer}
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>
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<IconMessagePlus className="h-3.5 w-3.5" />
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Comment
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</Button>
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)}
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{commentState.textSelection && (
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<div data-markdown-comment-popover>
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<EditorCommentPopover
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selectedText={commentState.textSelection.selectedText}
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lineRange={{
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start: commentState.textSelection.startLine,
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end: commentState.textSelection.endLine,
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}}
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position={commentState.textSelection.position}
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onSubmit={commentState.submitComment}
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onSubmitAndRun={commentState.submitAndRunComment}
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onClose={commentState.closeComposer}
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/>
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</div>
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)}
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{commentState.commentView && (
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<CommentViewPopover
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comments={commentState.commentView.comments}
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position={commentState.commentView.position}
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onDelete={commentState.removeComment}
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onUpdate={commentState.updateComment}
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onClose={commentState.closeCommentView}
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/>
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)}
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</>,
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overlayRoot,
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);
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}
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export function MarkdownPreviewRenderer({
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content,
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taskId,
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}: {
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content: string;
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taskId?: string | null;
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}) {
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return (
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<MarkdownTaskContext.Provider value={taskId ?? null}>
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<ReactMarkdown
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remarkPlugins={remarkPlugins}
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rehypePlugins={[rehypeRaw, [rehypeSanitize, defaultSchema]]}
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components={markdownPreviewComponents}
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>
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{content}
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</ReactMarkdown>
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</MarkdownTaskContext.Provider>
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);
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}
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export const MarkdownPreviewContent = memo(function MarkdownPreviewContent({
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path,
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content,
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worktreePath,
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sessionId,
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taskId,
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repositoryId,
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repositoryName,
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enableComments = false,
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showExternalVcsLink = true,
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onTogglePreview,
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}: MarkdownPreviewContentProps) {
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const rootRef = useRef<HTMLDivElement>(null);
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const scrollRef = useRef<HTMLDivElement>(null);
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const [overlayRoot, setOverlayRoot] = useState<HTMLElement | null>(null);
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const commentsEnabled = enableComments && !!sessionId;
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const commentState = useMarkdownPreviewComments({
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path,
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content,
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sessionId,
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taskId,
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repositoryId,
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enabled: commentsEnabled,
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rootRef,
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});
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const previewCommentContextValue = useMemo(
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() => ({
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comments: commentState.comments,
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showCommentsForRange: commentState.showCommentsForRange,
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}),
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[commentState.comments, commentState.showCommentsForRange],
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);
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const dismissCommentOverlays = commentState.dismissOverlays;
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useEffect(() => {
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setOverlayRoot(document.body);
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}, []);
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useEffect(() => {
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if (!commentsEnabled) return;
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const scrollElement = scrollRef.current;
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const dismissOverlays = () => dismissCommentOverlays();
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scrollElement?.addEventListener("scroll", dismissOverlays, { passive: true });
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window.addEventListener("resize", dismissOverlays);
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return () => {
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scrollElement?.removeEventListener("scroll", dismissOverlays);
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window.removeEventListener("resize", dismissOverlays);
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};
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}, [commentsEnabled, dismissCommentOverlays]);
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return (
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<div className="relative flex h-full flex-col" data-testid="markdown-preview">
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<MarkdownPreviewToolbar
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path={path}
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worktreePath={worktreePath}
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commentCount={commentState.comments.length}
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commentsEnabled={commentsEnabled}
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taskId={taskId}
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sessionId={sessionId}
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repositoryId={repositoryId}
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repositoryName={repositoryName}
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showExternalVcsLink={showExternalVcsLink}
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onTogglePreview={onTogglePreview}
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/>
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<div ref={scrollRef} className="flex-1 overflow-auto p-6">
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<div ref={rootRef} className="markdown-body max-w-3xl" tabIndex={commentsEnabled ? 0 : -1}>
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<PreviewCommentContext.Provider value={previewCommentContextValue}>
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<MarkdownPreviewRenderer content={content} taskId={taskId} />
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</PreviewCommentContext.Provider>
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</div>
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</div>
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<MarkdownPreviewCommentOverlays
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commentsEnabled={commentsEnabled}
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overlayRoot={overlayRoot}
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commentState={commentState}
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/>
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</div>
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);
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});
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