| 1 | "use client"; |
| 2 | |
| 3 | import { DRAG_ITEM_BLOCK } from "@platejs/dnd"; |
| 4 | import { ChevronDown, GripVertical } from "lucide-react"; |
| 5 | import { useEditorRef } from "platejs/react"; |
| 6 | import { |
| 7 | useCallback, |
| 8 | useEffect, |
| 9 | useMemo, |
| 10 | useRef, |
| 11 | useState, |
| 12 | type KeyboardEvent, |
| 13 | } from "react"; |
| 14 | import { useDrag } from "react-dnd"; |
| 15 | |
| 16 | import { updateDroppedElementAfterDrop } from "@/components/notebook/presentation/editor/dnd/utils/updateSiblingsForcefully"; |
| 17 | import { |
| 18 | applyThemeToSyntax, |
| 19 | type InfographicPaletteThemeColors, |
| 20 | } from "@/components/notebook/presentation/editor/utils/infographic-utils"; |
| 21 | import { |
| 22 | getElementId, |
| 23 | getPaletteMutableSignature, |
| 24 | replaceElementById, |
| 25 | replaceFocusedEmptyParagraph, |
| 26 | type PaletteDropTarget, |
| 27 | } from "@/components/notebook/presentation/editor/utils/paletteDrop"; |
| 28 | import { type PlateSlide } from "@/components/notebook/presentation/utils/parser"; |
| 29 | import { type MyEditor } from "@/components/plate/editor-kit"; |
| 30 | import { ScrollList, type ScrollListRange } from "@/components/ui/scroll-list"; |
| 31 | import { Skeleton } from "@/components/ui/skeleton"; |
| 32 | import { renderInfographicPreviewHtml } from "@/hooks/presentation/infographic/infographic-preview-renderer"; |
| 33 | import { resolvePresentationThemeData } from "@/lib/presentation/theme-resolution"; |
| 34 | import { cn } from "@/lib/utils"; |
| 35 | import { usePresentationState } from "@/states/presentation-state"; |
| 36 | import { usePresentationTheme } from "../../providers/PresentationThemeProvider"; |
| 37 | import { |
| 38 | diagramCategories, |
| 39 | type DiagramCategory, |
| 40 | type DiagramItem, |
| 41 | } from "./diagrams"; |
| 42 | import { PanelSearchFilter } from "./PanelSearchFilter"; |
| 43 | import { matchesPanelSearch } from "./PanelSearchFilter"; |
| 44 | |
| 45 | const KEYBOARD_APPLY_DELAY_MS = 250; |
| 46 | const VIRTUAL_ROW_OVERSCAN = 1_200; |
| 47 | const PREVIEW_LOOKAHEAD_PX = 3_600; |
| 48 | const PREVIEW_LOOKBEHIND_PX = 1_000; |
| 49 | const HEADER_ROW_HEIGHT = 37; |
| 50 | const CARD_ROW_HEIGHT = 159; |
| 51 | const ROW_GAP = 0; |
| 52 | const ALL_DIAGRAM_ITEMS = diagramCategories.flatMap( |
| 53 | (category) => category.items, |
| 54 | ); |
| 55 | |
| 56 | type DiagramPreviewCache = { |
| 57 | failedKeys: Set<string>; |
| 58 | markupByKey: Map<string, string>; |
| 59 | }; |
| 60 | |
| 61 | type DiagramPreviewRequest = { |
| 62 | isDark: boolean; |
| 63 | items: DiagramItem[]; |
| 64 | themeColors: InfographicPaletteThemeColors | null; |
| 65 | }; |
| 66 | |
| 67 | type PreviewCandidate<TItem> = { |
| 68 | distance: number; |
| 69 | item: TItem; |
| 70 | }; |
| 71 | |
| 72 | type VirtualHeaderRow = { |
| 73 | categoryKey: string; |
| 74 | categoryName: string; |
| 75 | collapsed: boolean; |
| 76 | count: number; |
| 77 | height: number; |
| 78 | key: string; |
| 79 | type: "header"; |
| 80 | }; |
| 81 | |
| 82 | type VirtualCardRow = { |
| 83 | categoryKey: string; |
| 84 | categoryName: string; |
| 85 | height: number; |
| 86 | items: DiagramItem[]; |
| 87 | key: string; |
| 88 | type: "cards"; |
| 89 | }; |
| 90 | |
| 91 | type VirtualDiagramRow = VirtualHeaderRow | VirtualCardRow; |
| 92 | |
| 93 | const diagramPreviewMarkupCache = new Map<string, string>(); |
| 94 | const diagramPreviewFailureCache = new Set<string>(); |
| 95 | const diagramPreviewPromiseCache = new Map<string, Promise<void>>(); |
| 96 | |
| 97 | function getDiagramPreviewCacheKey( |
| 98 | item: DiagramItem, |
| 99 | isDark: boolean, |
| 100 | themeColors: InfographicPaletteThemeColors | null, |
| 101 | ): string { |
| 102 | return [ |
| 103 | item.key, |
| 104 | isDark ? "dark" : "light", |
| 105 | themeColors?.primary ?? "", |
| 106 | themeColors?.accent ?? "", |
| 107 | themeColors?.smartLayout ?? "", |
| 108 | themeColors?.text ?? "", |
| 109 | themeColors?.heading ?? "", |
| 110 | themeColors?.cardBackground ?? "", |
| 111 | ].join("|"); |
| 112 | } |
| 113 | |
| 114 | async function renderDiagramPreviewMarkup( |
| 115 | item: DiagramItem, |
| 116 | isDark: boolean, |
| 117 | themeColors: InfographicPaletteThemeColors | null, |
| 118 | ): Promise<string> { |
| 119 | return renderInfographicPreviewHtml( |
| 120 | applyThemeToSyntax(item.syntax, isDark, themeColors), |
| 121 | ); |
| 122 | } |
| 123 | |
| 124 | async function ensureDiagramPreviewMarkup( |
| 125 | item: DiagramItem, |
| 126 | isDark: boolean, |
| 127 | themeColors: InfographicPaletteThemeColors | null, |
| 128 | ): Promise<void> { |
| 129 | const cacheKey = getDiagramPreviewCacheKey(item, isDark, themeColors); |
| 130 | |
| 131 | if ( |
| 132 | diagramPreviewMarkupCache.has(cacheKey) || |
| 133 | diagramPreviewFailureCache.has(cacheKey) |
| 134 | ) { |
| 135 | return; |
| 136 | } |
| 137 | |
| 138 | const existingPromise = diagramPreviewPromiseCache.get(cacheKey); |
| 139 | if (existingPromise) { |
| 140 | await existingPromise; |
| 141 | return; |
| 142 | } |
| 143 | |
| 144 | const previewPromise = renderDiagramPreviewMarkup(item, isDark, themeColors) |
| 145 | .then((markup) => { |
| 146 | diagramPreviewMarkupCache.set(cacheKey, markup); |
| 147 | }) |
| 148 | .catch((error: unknown) => { |
| 149 | console.error("Failed to render diagram preview:", error); |
| 150 | diagramPreviewFailureCache.add(cacheKey); |
| 151 | }) |
| 152 | .finally(() => { |
| 153 | diagramPreviewPromiseCache.delete(cacheKey); |
| 154 | }); |
| 155 | |
| 156 | diagramPreviewPromiseCache.set(cacheKey, previewPromise); |
| 157 | await previewPromise; |
| 158 | } |
| 159 | |
| 160 | function getPendingPreviewItem( |
| 161 | items: DiagramItem[], |
| 162 | isDark: boolean, |
| 163 | themeColors: InfographicPaletteThemeColors | null, |
| 164 | ): DiagramItem | undefined { |
| 165 | return items.find((item) => { |
| 166 | const cacheKey = getDiagramPreviewCacheKey(item, isDark, themeColors); |
| 167 | return ( |
| 168 | !diagramPreviewMarkupCache.has(cacheKey) && |
| 169 | !diagramPreviewFailureCache.has(cacheKey) && |
| 170 | !diagramPreviewPromiseCache.has(cacheKey) |
| 171 | ); |
| 172 | }); |
| 173 | } |
| 174 | |
| 175 | function useDiagramPreviewCache( |
| 176 | isDark: boolean, |
| 177 | themeColors: InfographicPaletteThemeColors | null, |
| 178 | requestedPreviewItems: DiagramItem[], |
| 179 | ): DiagramPreviewCache { |
| 180 | const [, setCacheVersion] = useState(0); |
| 181 | const isMountedRef = useRef(false); |
| 182 | const isPreloadingRef = useRef(false); |
| 183 | const latestRequestRef = useRef<DiagramPreviewRequest>({ |
| 184 | isDark, |
| 185 | items: requestedPreviewItems, |
| 186 | themeColors, |
| 187 | }); |
| 188 | |
| 189 | useEffect(() => { |
| 190 | isMountedRef.current = true; |
| 191 | |
| 192 | return () => { |
| 193 | isMountedRef.current = false; |
| 194 | }; |
| 195 | }, []); |
| 196 | |
| 197 | useEffect(() => { |
| 198 | latestRequestRef.current = { |
| 199 | isDark, |
| 200 | items: requestedPreviewItems, |
| 201 | themeColors, |
| 202 | }; |
| 203 | |
| 204 | async function preloadRequestedDiagrams() { |
| 205 | if (isPreloadingRef.current) return; |
| 206 | |
| 207 | isPreloadingRef.current = true; |
| 208 | |
| 209 | try { |
| 210 | const request = latestRequestRef.current; |
| 211 | const item = getPendingPreviewItem( |
| 212 | request.items, |
| 213 | request.isDark, |
| 214 | request.themeColors, |
| 215 | ); |
| 216 | |
| 217 | if (item) { |
| 218 | await ensureDiagramPreviewMarkup( |
| 219 | item, |
| 220 | request.isDark, |
| 221 | request.themeColors, |
| 222 | ); |
| 223 | |
| 224 | if (isMountedRef.current) { |
| 225 | setCacheVersion((version) => version + 1); |
| 226 | } |
| 227 | } |
| 228 | } finally { |
| 229 | isPreloadingRef.current = false; |
| 230 | const request = latestRequestRef.current; |
| 231 | |
| 232 | if ( |
| 233 | isMountedRef.current && |
| 234 | getPendingPreviewItem( |
| 235 | request.items, |
| 236 | request.isDark, |
| 237 | request.themeColors, |
| 238 | ) |
| 239 | ) { |
| 240 | void preloadRequestedDiagrams(); |
| 241 | |
| 242 | isPreloadingRef.current = false; |
| 243 | const latestRequest = latestRequestRef.current; |
| 244 | |
| 245 | if ( |
| 246 | isMountedRef.current && |
| 247 | getPendingPreviewItem( |
| 248 | latestRequest.items, |
| 249 | latestRequest.isDark, |
| 250 | latestRequest.themeColors, |
| 251 | ) |
| 252 | ) { |
| 253 | void preloadRequestedDiagrams(); |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | void preloadRequestedDiagrams(); |
| 260 | }, [isDark, requestedPreviewItems, themeColors]); |
| 261 | |
| 262 | const currentFailedKeys = new Set<string>(); |
| 263 | const markupByKey = new Map<string, string>(); |
| 264 | |
| 265 | for (const item of ALL_DIAGRAM_ITEMS) { |
| 266 | const cacheKey = getDiagramPreviewCacheKey(item, isDark, themeColors); |
| 267 | const markup = diagramPreviewMarkupCache.get(cacheKey); |
| 268 | |
| 269 | if (markup) { |
| 270 | markupByKey.set(cacheKey, markup); |
| 271 | } |
| 272 | if (diagramPreviewFailureCache.has(cacheKey)) { |
| 273 | currentFailedKeys.add(cacheKey); |
| 274 | } |
| 275 | } |
| 276 | |
| 277 | return { |
| 278 | failedKeys: currentFailedKeys, |
| 279 | markupByKey, |
| 280 | }; |
| 281 | } |
| 282 | |
| 283 | function buildVirtualRows( |
| 284 | categories: DiagramCategory[], |
| 285 | collapsedCategoryKeys: ReadonlySet<string>, |
| 286 | ): VirtualDiagramRow[] { |
| 287 | return categories.flatMap<VirtualDiagramRow>((category) => { |
| 288 | const cardRows: VirtualCardRow[] = []; |
| 289 | const collapsed = collapsedCategoryKeys.has(category.key); |
| 290 | |
| 291 | if (!collapsed) { |
| 292 | for (let index = 0; index < category.items.length; index += 2) { |
| 293 | const items = category.items.slice(index, index + 2); |
| 294 | cardRows.push({ |
| 295 | type: "cards", |
| 296 | key: `${category.key}-cards-${index}`, |
| 297 | categoryKey: category.key, |
| 298 | categoryName: category.name, |
| 299 | items, |
| 300 | height: CARD_ROW_HEIGHT, |
| 301 | }); |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | return [ |
| 306 | { |
| 307 | type: "header", |
| 308 | key: `${category.key}-header`, |
| 309 | categoryKey: category.key, |
| 310 | categoryName: category.name, |
| 311 | collapsed, |
| 312 | count: category.items.length, |
| 313 | height: HEADER_ROW_HEIGHT, |
| 314 | }, |
| 315 | ...cardRows, |
| 316 | ]; |
| 317 | }); |
| 318 | } |
| 319 | |
| 320 | function getRequestedPreviewItems( |
| 321 | rows: VirtualDiagramRow[], |
| 322 | scrollTop: number, |
| 323 | viewportHeight: number, |
| 324 | ): DiagramItem[] { |
| 325 | const visibleStart = scrollTop; |
| 326 | const visibleEnd = scrollTop + viewportHeight; |
| 327 | const preloadStart = Math.max(0, scrollTop - PREVIEW_LOOKBEHIND_PX); |
| 328 | const preloadEnd = visibleEnd + PREVIEW_LOOKAHEAD_PX; |
| 329 | const visibleItems: DiagramItem[] = []; |
| 330 | const nearbyCandidates: PreviewCandidate<DiagramItem>[] = []; |
| 331 | let top = 0; |
| 332 | |
| 333 | for (const row of rows) { |
| 334 | const rowHeight = row.height + ROW_GAP; |
| 335 | const rowBottom = top + rowHeight; |
| 336 | const isCardRow = row.type === "cards"; |
| 337 | const isVisible = rowBottom >= visibleStart && top <= visibleEnd; |
| 338 | const isNearViewport = rowBottom >= preloadStart && top <= preloadEnd; |
| 339 | |
| 340 | if (isCardRow && isVisible) { |
| 341 | visibleItems.push(...row.items); |
| 342 | } else if (isCardRow && isNearViewport) { |
| 343 | const distance = |
| 344 | rowBottom < visibleStart ? visibleStart - rowBottom : top - visibleEnd; |
| 345 | |
| 346 | for (const item of row.items) { |
| 347 | nearbyCandidates.push({ distance, item }); |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | top += rowHeight; |
| 352 | } |
| 353 | |
| 354 | return [ |
| 355 | ...visibleItems, |
| 356 | ...nearbyCandidates |
| 357 | .sort((left, right) => left.distance - right.distance) |
| 358 | .map((candidate) => candidate.item), |
| 359 | ]; |
| 360 | } |
| 361 | |
| 362 | function getActiveCategory( |
| 363 | rows: VirtualDiagramRow[], |
| 364 | scrollTop: number, |
| 365 | ): { row: VirtualHeaderRow; top: number } | null { |
| 366 | let top = 0; |
| 367 | let activeHeader: { row: VirtualHeaderRow; top: number } | null = null; |
| 368 | |
| 369 | for (const row of rows) { |
| 370 | if (top > scrollTop + HEADER_ROW_HEIGHT) { |
| 371 | break; |
| 372 | } |
| 373 | |
| 374 | if (row.type === "header") { |
| 375 | activeHeader = { row, top }; |
| 376 | } |
| 377 | top += row.height + ROW_GAP; |
| 378 | } |
| 379 | |
| 380 | return activeHeader; |
| 381 | } |
| 382 | |
| 383 | export function DiagramPanel({ isLoaded }: { isLoaded: boolean }) { |
| 384 | const paletteDropTarget = usePresentationState((s) => s.paletteDropTarget); |
| 385 | const currentSlideId = usePresentationState((s) => s.currentSlideId); |
| 386 | const setPaletteDropTarget = usePresentationState( |
| 387 | (s) => s.setPaletteDropTarget, |
| 388 | ); |
| 389 | const updateSlide = usePresentationState((s) => s.updateSlide); |
| 390 | const editor = useEditorRef<MyEditor>(currentSlideId ?? undefined); |
| 391 | |
| 392 | const insertFocusedItem = useCallback( |
| 393 | (item: DiagramItem) => { |
| 394 | if (!currentSlideId) return; |
| 395 | |
| 396 | const insertedElement = replaceFocusedEmptyParagraph(editor, item.node); |
| 397 | const insertedElementId = getElementId(insertedElement ?? undefined); |
| 398 | |
| 399 | if (!insertedElementId) return; |
| 400 | |
| 401 | const insertedEntry = editor.api.node({ id: insertedElementId, at: [] }); |
| 402 | if (insertedEntry) { |
| 403 | updateDroppedElementAfterDrop(editor, insertedEntry[1]); |
| 404 | } |
| 405 | |
| 406 | updateSlide(currentSlideId, { |
| 407 | content: editor.children as PlateSlide["content"], |
| 408 | }); |
| 409 | |
| 410 | const updatedEntry = editor.api.node({ id: insertedElementId, at: [] }); |
| 411 | const [updatedElement] = updatedEntry ?? []; |
| 412 | |
| 413 | setPaletteDropTarget({ |
| 414 | editorId: currentSlideId, |
| 415 | elementId: insertedElementId, |
| 416 | itemKey: item.key, |
| 417 | source: "diagrams", |
| 418 | mutableSignature: updatedElement |
| 419 | ? getPaletteMutableSignature(updatedElement) |
| 420 | : undefined, |
| 421 | }); |
| 422 | }, |
| 423 | [currentSlideId, editor, setPaletteDropTarget, updateSlide], |
| 424 | ); |
| 425 | |
| 426 | if (!isLoaded) { |
| 427 | return ( |
| 428 | <div className="animate-fade-in scrollbar-thin flex h-full flex-col gap-4 overflow-y-auto px-4 pb-5 scrollbar-thumb-primary scrollbar-track-transparent"> |
| 429 | <div className="grid grid-cols-2 gap-3"> |
| 430 | {Array.from({ length: 12 }).map((_, index) => ( |
| 431 | <div key={index} className="rounded-md border p-2"> |
| 432 | <div className="aspect-video w-full rounded-sm bg-muted/30"> |
| 433 | <Skeleton className="h-full w-full rounded-sm" /> |
| 434 | </div> |
| 435 | <div className="mt-1.5 flex items-center gap-1 px-0.5"> |
| 436 | <div className="size-3 shrink-0 animate-pulse rounded-full bg-muted" /> |
| 437 | <Skeleton className="h-3 w-20" /> |
| 438 | </div> |
| 439 | </div> |
| 440 | ))} |
| 441 | </div> |
| 442 | </div> |
| 443 | ); |
| 444 | } |
| 445 | |
| 446 | if (paletteDropTarget?.source === "diagrams") { |
| 447 | return <TrackedDiagramPanel paletteDropTarget={paletteDropTarget} />; |
| 448 | } |
| 449 | |
| 450 | return <DiagramPanelContent insertFocusedItem={insertFocusedItem} />; |
| 451 | } |
| 452 | |
| 453 | function TrackedDiagramPanel({ |
| 454 | paletteDropTarget, |
| 455 | }: { |
| 456 | paletteDropTarget: PaletteDropTarget; |
| 457 | }) { |
| 458 | const setPaletteDropTarget = usePresentationState( |
| 459 | (s) => s.setPaletteDropTarget, |
| 460 | ); |
| 461 | const updateSlide = usePresentationState((s) => s.updateSlide); |
| 462 | const editor = useEditorRef<MyEditor>(paletteDropTarget.editorId); |
| 463 | |
| 464 | const replaceTrackedDrop = useCallback( |
| 465 | (item: DiagramItem) => { |
| 466 | const replaced = replaceElementById( |
| 467 | editor, |
| 468 | paletteDropTarget.elementId, |
| 469 | item.node, |
| 470 | paletteDropTarget.mutableSignature, |
| 471 | ); |
| 472 | |
| 473 | if (!replaced) { |
| 474 | setPaletteDropTarget(null); |
| 475 | return; |
| 476 | } |
| 477 | |
| 478 | updateSlide(paletteDropTarget.editorId, { |
| 479 | content: editor.children as PlateSlide["content"], |
| 480 | }); |
| 481 | |
| 482 | const updatedEntry = editor.api.node({ |
| 483 | id: paletteDropTarget.elementId, |
| 484 | at: [], |
| 485 | }); |
| 486 | const [updatedElement] = updatedEntry ?? []; |
| 487 | |
| 488 | setPaletteDropTarget({ |
| 489 | ...paletteDropTarget, |
| 490 | itemKey: item.key, |
| 491 | mutableSignature: updatedElement |
| 492 | ? getPaletteMutableSignature(updatedElement) |
| 493 | : undefined, |
| 494 | }); |
| 495 | }, |
| 496 | [editor, paletteDropTarget, setPaletteDropTarget, updateSlide], |
| 497 | ); |
| 498 | |
| 499 | const initialSelectedIndex = Math.max( |
| 500 | ALL_DIAGRAM_ITEMS.findIndex( |
| 501 | (item) => item.key === paletteDropTarget.itemKey, |
| 502 | ), |
| 503 | 0, |
| 504 | ); |
| 505 | |
| 506 | return ( |
| 507 | <DiagramPanelContent |
| 508 | key={paletteDropTarget.elementId} |
| 509 | initialSelectedIndex={initialSelectedIndex} |
| 510 | replaceTrackedDrop={replaceTrackedDrop} |
| 511 | /> |
| 512 | ); |
| 513 | } |
| 514 | |
| 515 | function DiagramPanelContent({ |
| 516 | initialSelectedIndex = 0, |
| 517 | insertFocusedItem, |
| 518 | replaceTrackedDrop, |
| 519 | }: { |
| 520 | initialSelectedIndex?: number; |
| 521 | insertFocusedItem?: (item: DiagramItem) => void; |
| 522 | replaceTrackedDrop?: (item: DiagramItem) => void; |
| 523 | }) { |
| 524 | const [selectedIndex, setSelectedIndex] = useState(initialSelectedIndex); |
| 525 | const [searchQuery, setSearchQuery] = useState(""); |
| 526 | const [collapsedCategoryKeys, setCollapsedCategoryKeys] = useState< |
| 527 | Set<string> |
| 528 | >(() => new Set()); |
| 529 | const cardRefs = useRef<Array<HTMLButtonElement | null>>([]); |
| 530 | const applyTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null); |
| 531 | const { resolvedTheme } = usePresentationTheme(); |
| 532 | const isDark = resolvedTheme === "dark"; |
| 533 | const presentationTheme = usePresentationState((state) => state.theme); |
| 534 | const customThemeData = usePresentationState( |
| 535 | (state) => state.customThemeData, |
| 536 | ); |
| 537 | const themeColors = useMemo<InfographicPaletteThemeColors | null>( |
| 538 | () => |
| 539 | resolvePresentationThemeData({ |
| 540 | customThemeData, |
| 541 | theme: presentationTheme, |
| 542 | })?.colors ?? null, |
| 543 | [customThemeData, presentationTheme], |
| 544 | ); |
| 545 | const filteredCategories = useMemo( |
| 546 | () => |
| 547 | diagramCategories |
| 548 | .map((category) => ({ |
| 549 | ...category, |
| 550 | items: category.items.filter((item) => { |
| 551 | return matchesPanelSearch(searchQuery, [ |
| 552 | item.label, |
| 553 | item.key, |
| 554 | item.templateId, |
| 555 | item.categoryName, |
| 556 | item.categoryKey, |
| 557 | ]); |
| 558 | }), |
| 559 | })) |
| 560 | .filter((category) => category.items.length > 0), |
| 561 | [searchQuery], |
| 562 | ); |
| 563 | const visibleDiagramItems = useMemo( |
| 564 | () => filteredCategories.flatMap((category) => category.items), |
| 565 | [filteredCategories], |
| 566 | ); |
| 567 | const virtualRows = useMemo( |
| 568 | () => buildVirtualRows(filteredCategories, collapsedCategoryKeys), |
| 569 | [collapsedCategoryKeys, filteredCategories], |
| 570 | ); |
| 571 | const itemIndexByKey = useMemo( |
| 572 | () => new Map(visibleDiagramItems.map((item, index) => [item.key, index])), |
| 573 | [visibleDiagramItems], |
| 574 | ); |
| 575 | const [scrollRange, setScrollRange] = useState<ScrollListRange>({ |
| 576 | scrollTop: 0, |
| 577 | viewportHeight: 0, |
| 578 | }); |
| 579 | const requestedPreviewItems = useMemo( |
| 580 | () => |
| 581 | getRequestedPreviewItems( |
| 582 | virtualRows, |
| 583 | scrollRange.scrollTop, |
| 584 | scrollRange.viewportHeight, |
| 585 | ), |
| 586 | [scrollRange.scrollTop, scrollRange.viewportHeight, virtualRows], |
| 587 | ); |
| 588 | const previewCache = useDiagramPreviewCache( |
| 589 | isDark, |
| 590 | themeColors, |
| 591 | requestedPreviewItems, |
| 592 | ); |
| 593 | const activeCategory = getActiveCategory(virtualRows, scrollRange.scrollTop); |
| 594 | const shouldShowStickyCategory = |
| 595 | activeCategory != null && activeCategory.top < scrollRange.scrollTop; |
| 596 | const scrollListKey = useMemo( |
| 597 | () => [searchQuery, ...[...collapsedCategoryKeys].sort()].join("|"), |
| 598 | [collapsedCategoryKeys, searchQuery], |
| 599 | ); |
| 600 | |
| 601 | const toggleCategory = useCallback((categoryKey: string) => { |
| 602 | setCollapsedCategoryKeys((currentKeys) => { |
| 603 | const nextKeys = new Set(currentKeys); |
| 604 | |
| 605 | if (nextKeys.has(categoryKey)) { |
| 606 | nextKeys.delete(categoryKey); |
| 607 | } else { |
| 608 | nextKeys.add(categoryKey); |
| 609 | } |
| 610 | |
| 611 | return nextKeys; |
| 612 | }); |
| 613 | }, []); |
| 614 | |
| 615 | const focusCard = useCallback((index: number) => { |
| 616 | cardRefs.current[index]?.focus(); |
| 617 | }, []); |
| 618 | |
| 619 | useEffect(() => { |
| 620 | window.requestAnimationFrame(() => { |
| 621 | focusCard(initialSelectedIndex); |
| 622 | }); |
| 623 | }, [focusCard, initialSelectedIndex]); |
| 624 | |
| 625 | useEffect(() => { |
| 626 | setSelectedIndex((currentIndex) => |
| 627 | visibleDiagramItems.length === 0 |
| 628 | ? 0 |
| 629 | : Math.min(currentIndex, visibleDiagramItems.length - 1), |
| 630 | ); |
| 631 | }, [visibleDiagramItems.length]); |
| 632 | |
| 633 | useEffect( |
| 634 | () => () => { |
| 635 | if (applyTimeoutRef.current) { |
| 636 | clearTimeout(applyTimeoutRef.current); |
| 637 | } |
| 638 | }, |
| 639 | [], |
| 640 | ); |
| 641 | |
| 642 | const commitSelection = useCallback( |
| 643 | (index: number) => { |
| 644 | const item = visibleDiagramItems[index]; |
| 645 | |
| 646 | if (!item) return; |
| 647 | |
| 648 | if (replaceTrackedDrop) { |
| 649 | replaceTrackedDrop(item); |
| 650 | return; |
| 651 | } |
| 652 | |
| 653 | insertFocusedItem?.(item); |
| 654 | }, |
| 655 | [insertFocusedItem, replaceTrackedDrop, visibleDiagramItems], |
| 656 | ); |
| 657 | |
| 658 | const selectItem = useCallback( |
| 659 | (index: number) => { |
| 660 | if (applyTimeoutRef.current) { |
| 661 | clearTimeout(applyTimeoutRef.current); |
| 662 | applyTimeoutRef.current = null; |
| 663 | } |
| 664 | |
| 665 | setSelectedIndex(index); |
| 666 | commitSelection(index); |
| 667 | }, |
| 668 | [commitSelection], |
| 669 | ); |
| 670 | |
| 671 | const scheduleSelectionCommit = useCallback( |
| 672 | (index: number) => { |
| 673 | if (applyTimeoutRef.current) { |
| 674 | clearTimeout(applyTimeoutRef.current); |
| 675 | } |
| 676 | |
| 677 | applyTimeoutRef.current = setTimeout(() => { |
| 678 | applyTimeoutRef.current = null; |
| 679 | commitSelection(index); |
| 680 | |
| 681 | window.requestAnimationFrame(() => { |
| 682 | focusCard(index); |
| 683 | }); |
| 684 | }, KEYBOARD_APPLY_DELAY_MS); |
| 685 | }, |
| 686 | [commitSelection, focusCard], |
| 687 | ); |
| 688 | |
| 689 | const moveSelection = useCallback( |
| 690 | (nextIndex: number) => { |
| 691 | const boundedIndex = Math.min( |
| 692 | Math.max(nextIndex, 0), |
| 693 | visibleDiagramItems.length - 1, |
| 694 | ); |
| 695 | |
| 696 | if (boundedIndex < 0) return; |
| 697 | |
| 698 | setSelectedIndex(boundedIndex); |
| 699 | focusCard(boundedIndex); |
| 700 | if (replaceTrackedDrop) { |
| 701 | scheduleSelectionCommit(boundedIndex); |
| 702 | } |
| 703 | }, |
| 704 | [ |
| 705 | focusCard, |
| 706 | replaceTrackedDrop, |
| 707 | scheduleSelectionCommit, |
| 708 | visibleDiagramItems.length, |
| 709 | ], |
| 710 | ); |
| 711 | |
| 712 | const handleCardKeyDown = useCallback( |
| 713 | (event: KeyboardEvent<HTMLButtonElement>, index: number) => { |
| 714 | const columns = 2; |
| 715 | |
| 716 | switch (event.key) { |
| 717 | case "ArrowLeft": |
| 718 | event.preventDefault(); |
| 719 | event.stopPropagation(); |
| 720 | moveSelection(index - 1); |
| 721 | break; |
| 722 | case "ArrowRight": |
| 723 | event.preventDefault(); |
| 724 | event.stopPropagation(); |
| 725 | moveSelection(index + 1); |
| 726 | break; |
| 727 | case "ArrowUp": |
| 728 | event.preventDefault(); |
| 729 | event.stopPropagation(); |
| 730 | moveSelection(index - columns); |
| 731 | break; |
| 732 | case "ArrowDown": |
| 733 | event.preventDefault(); |
| 734 | event.stopPropagation(); |
| 735 | moveSelection(index + columns); |
| 736 | break; |
| 737 | case "Home": |
| 738 | event.preventDefault(); |
| 739 | event.stopPropagation(); |
| 740 | moveSelection(0); |
| 741 | break; |
| 742 | case "End": |
| 743 | event.preventDefault(); |
| 744 | event.stopPropagation(); |
| 745 | moveSelection(visibleDiagramItems.length - 1); |
| 746 | break; |
| 747 | case "Enter": |
| 748 | case " ": |
| 749 | event.preventDefault(); |
| 750 | event.stopPropagation(); |
| 751 | selectItem(index); |
| 752 | break; |
| 753 | } |
| 754 | }, |
| 755 | [moveSelection, selectItem, visibleDiagramItems.length], |
| 756 | ); |
| 757 | |
| 758 | const renderDiagramRow = useCallback( |
| 759 | ({ item: row }: { item: VirtualDiagramRow }) => |
| 760 | row.type === "header" ? ( |
| 761 | <DiagramCategoryTrigger row={row} onToggle={toggleCategory} /> |
| 762 | ) : ( |
| 763 | <div className="grid h-full grid-cols-2 gap-3 px-4 py-2"> |
| 764 | {row.items.map((item) => { |
| 765 | const index = itemIndexByKey.get(item.key); |
| 766 | if (index === undefined) return null; |
| 767 | |
| 768 | const cacheKey = getDiagramPreviewCacheKey( |
| 769 | item, |
| 770 | isDark, |
| 771 | themeColors, |
| 772 | ); |
| 773 | const previewMarkup = previewCache.markupByKey.get(cacheKey); |
| 774 | const hasPreviewError = previewCache.failedKeys.has(cacheKey); |
| 775 | |
| 776 | return ( |
| 777 | <DiagramCard |
| 778 | key={item.key} |
| 779 | item={item} |
| 780 | previewMarkup={previewMarkup} |
| 781 | hasPreviewError={hasPreviewError} |
| 782 | refCallback={(node) => { |
| 783 | cardRefs.current[index] = node; |
| 784 | }} |
| 785 | isSelected={selectedIndex === index} |
| 786 | tabIndex={selectedIndex === index ? 0 : -1} |
| 787 | onClick={() => selectItem(index)} |
| 788 | onFocus={() => setSelectedIndex(index)} |
| 789 | onKeyDown={(event) => handleCardKeyDown(event, index)} |
| 790 | /> |
| 791 | ); |
| 792 | })} |
| 793 | </div> |
| 794 | ), |
| 795 | [ |
| 796 | handleCardKeyDown, |
| 797 | isDark, |
| 798 | itemIndexByKey, |
| 799 | previewCache.failedKeys, |
| 800 | previewCache.markupByKey, |
| 801 | selectItem, |
| 802 | selectedIndex, |
| 803 | themeColors, |
| 804 | toggleCategory, |
| 805 | ], |
| 806 | ); |
| 807 | |
| 808 | return ( |
| 809 | <div className="flex h-full flex-col overflow-hidden"> |
| 810 | <PanelSearchFilter |
| 811 | onQueryChange={setSearchQuery} |
| 812 | placeholder="Search diagrams..." |
| 813 | query={searchQuery} |
| 814 | /> |
| 815 | <div className="relative min-h-0 flex-1"> |
| 816 | {visibleDiagramItems.length > 0 ? ( |
| 817 | <> |
| 818 | {shouldShowStickyCategory && ( |
| 819 | <div className="absolute top-0 right-0 left-0 z-20 border-b bg-background/95 backdrop-blur"> |
| 820 | <DiagramCategoryTrigger |
| 821 | row={activeCategory.row} |
| 822 | onToggle={toggleCategory} |
| 823 | sticky |
| 824 | /> |
| 825 | </div> |
| 826 | )} |
| 827 | |
| 828 | <ScrollList |
| 829 | key={scrollListKey} |
| 830 | items={virtualRows} |
| 831 | getItemKey={(row) => row.key} |
| 832 | getItemHeight={(row) => row.height} |
| 833 | gap={ROW_GAP} |
| 834 | overscan={VIRTUAL_ROW_OVERSCAN} |
| 835 | paddingBottom={20} |
| 836 | onRangeChange={(range) => { |
| 837 | setScrollRange((currentRange) => |
| 838 | currentRange.scrollTop === range.scrollTop && |
| 839 | currentRange.viewportHeight === range.viewportHeight |
| 840 | ? currentRange |
| 841 | : range, |
| 842 | ); |
| 843 | }} |
| 844 | renderItem={renderDiagramRow} |
| 845 | /> |
| 846 | </> |
| 847 | ) : ( |
| 848 | <div className="flex h-full items-center justify-center px-6 text-center text-sm text-muted-foreground"> |
| 849 | No diagrams match your search. |
| 850 | </div> |
| 851 | )} |
| 852 | </div> |
| 853 | </div> |
| 854 | ); |
| 855 | } |
| 856 | |
| 857 | function DiagramCategoryTrigger({ |
| 858 | onToggle, |
| 859 | row, |
| 860 | sticky = false, |
| 861 | }: { |
| 862 | onToggle: (categoryKey: string) => void; |
| 863 | row: VirtualHeaderRow; |
| 864 | sticky?: boolean; |
| 865 | }) { |
| 866 | return ( |
| 867 | <button |
| 868 | type="button" |
| 869 | aria-expanded={!row.collapsed} |
| 870 | onClick={() => onToggle(row.categoryKey)} |
| 871 | className={cn( |
| 872 | "flex h-full w-full items-center justify-between gap-3 border-b bg-background/95 px-4 text-left transition-colors hover:bg-muted/35 focus-visible:bg-muted/50 focus-visible:outline-none", |
| 873 | sticky && "h-9 border-b-0", |
| 874 | )} |
| 875 | > |
| 876 | <span className="min-w-0 text-xs font-semibold text-muted-foreground"> |
| 877 | {row.categoryName}{" "} |
| 878 | <span className="font-normal opacity-70">({row.count})</span> |
| 879 | </span> |
| 880 | <ChevronDown |
| 881 | className={cn( |
| 882 | "size-4 shrink-0 text-muted-foreground transition-transform", |
| 883 | row.collapsed && "-rotate-90", |
| 884 | )} |
| 885 | /> |
| 886 | </button> |
| 887 | ); |
| 888 | } |
| 889 | |
| 890 | function DiagramCard({ |
| 891 | item, |
| 892 | previewMarkup, |
| 893 | hasPreviewError, |
| 894 | refCallback, |
| 895 | isSelected, |
| 896 | tabIndex, |
| 897 | onClick, |
| 898 | onFocus, |
| 899 | onKeyDown, |
| 900 | }: { |
| 901 | item: DiagramItem; |
| 902 | previewMarkup: string | undefined; |
| 903 | hasPreviewError: boolean; |
| 904 | refCallback: (node: HTMLButtonElement | null) => void; |
| 905 | isSelected: boolean; |
| 906 | tabIndex: number; |
| 907 | onClick: () => void; |
| 908 | onFocus: () => void; |
| 909 | onKeyDown: (event: KeyboardEvent<HTMLButtonElement>) => void; |
| 910 | }) { |
| 911 | const [{ isDragging }, drag] = useDrag(() => ({ |
| 912 | type: DRAG_ITEM_BLOCK, |
| 913 | item: { |
| 914 | id: `external-${item.key}`, |
| 915 | element: item.node, |
| 916 | itemKey: item.key, |
| 917 | sourcePanel: "diagrams" as const, |
| 918 | }, |
| 919 | collect: (monitor) => ({ isDragging: monitor.isDragging() }), |
| 920 | })); |
| 921 | |
| 922 | return ( |
| 923 | <button |
| 924 | type="button" |
| 925 | ref={(el) => { |
| 926 | refCallback(el); |
| 927 | if (el) drag(el); |
| 928 | }} |
| 929 | aria-label={item.label} |
| 930 | aria-pressed={isSelected} |
| 931 | tabIndex={tabIndex} |
| 932 | data-panel-arrow-target="true" |
| 933 | onClick={onClick} |
| 934 | onFocus={onFocus} |
| 935 | onKeyDown={onKeyDown} |
| 936 | className={cn( |
| 937 | "group h-full cursor-grab rounded-md border p-2 transition hover:border-primary hover:shadow focus-visible:ring-2 focus-visible:ring-primary focus-visible:outline-none active:cursor-grabbing", |
| 938 | isSelected && "border-primary ring-1 ring-primary", |
| 939 | isDragging && "opacity-50", |
| 940 | )} |
| 941 | > |
| 942 | <DiagramPreview |
| 943 | previewMarkup={previewMarkup} |
| 944 | hasPreviewError={hasPreviewError} |
| 945 | /> |
| 946 | <div className="mt-1.5 flex items-start gap-1 px-0.5"> |
| 947 | <GripVertical className="mt-0.5 size-3 shrink-0 text-muted-foreground/50 transition-colors group-hover:text-muted-foreground" /> |
| 948 | <span className="line-clamp-2 text-xs leading-snug text-muted-foreground"> |
| 949 | {item.label} |
| 950 | </span> |
| 951 | </div> |
| 952 | </button> |
| 953 | ); |
| 954 | } |
| 955 | |
| 956 | function DiagramPreview({ |
| 957 | previewMarkup, |
| 958 | hasPreviewError, |
| 959 | }: { |
| 960 | previewMarkup: string | undefined; |
| 961 | hasPreviewError: boolean; |
| 962 | }) { |
| 963 | const previewRef = useRef<HTMLDivElement | null>(null); |
| 964 | |
| 965 | useEffect(() => { |
| 966 | const container = previewRef.current; |
| 967 | if (!container) return; |
| 968 | |
| 969 | container.replaceChildren(); |
| 970 | if (!previewMarkup) return; |
| 971 | |
| 972 | const template = document.createElement("template"); |
| 973 | template.innerHTML = previewMarkup; |
| 974 | container.replaceChildren(template.content.cloneNode(true)); |
| 975 | }, [previewMarkup]); |
| 976 | |
| 977 | return ( |
| 978 | <div className="pointer-events-none relative aspect-video w-full overflow-hidden rounded-sm border bg-card select-none"> |
| 979 | {hasPreviewError && ( |
| 980 | <div className="absolute inset-0 z-10 flex items-center justify-center bg-muted/10 p-2 text-center text-xs text-muted-foreground"> |
| 981 | Preview unavailable |
| 982 | </div> |
| 983 | )} |
| 984 | <div |
| 985 | ref={previewRef} |
| 986 | className="h-full w-full p-1.5 [&_svg]:h-full [&_svg]:w-full" |
| 987 | /> |
| 988 | </div> |
| 989 | ); |
| 990 | } |
| 991 |