| 1 | import { create } from 'zustand' |
| 2 | import type { InsertChartSeries } from '../components/session-detail/workspace/insert-charts' |
| 3 | import type { EditModeLayoutIsland } from '../lib/presentation-layout-island' |
| 4 | |
| 5 | // ─── Types ──────────────────────────────────────────── |
| 6 | |
| 7 | export interface DragEditItem { |
| 8 | pageId: string |
| 9 | htmlPath: string |
| 10 | selector: string |
| 11 | x: number |
| 12 | y: number |
| 13 | width: number | null |
| 14 | height: number | null |
| 15 | layoutIsland?: EditModeLayoutIsland |
| 16 | childUpdates: Array<{ path: number[]; width?: number; height?: number }> |
| 17 | isAbsoluteMode: boolean |
| 18 | zIndex?: number |
| 19 | zIndexOnly?: boolean |
| 20 | } |
| 21 | |
| 22 | export interface TextEditItem { |
| 23 | pageId: string |
| 24 | htmlPath: string |
| 25 | selector: string |
| 26 | patch: { |
| 27 | text?: string |
| 28 | style: { color?: string; fontSize?: string; fontWeight?: string; textAlign?: string } |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | export interface PropertyEditItem { |
| 33 | pageId: string |
| 34 | htmlPath: string |
| 35 | selector: string |
| 36 | blockId?: string |
| 37 | patch: { |
| 38 | html?: string |
| 39 | text?: string |
| 40 | formula?: { |
| 41 | latex: string |
| 42 | html: string |
| 43 | displayMode: boolean |
| 44 | originalLatex?: string |
| 45 | } |
| 46 | chart?: { |
| 47 | type: string |
| 48 | title: string |
| 49 | labels: string[] |
| 50 | values: number[] |
| 51 | series: InsertChartSeries[] |
| 52 | primaryColor: string |
| 53 | accentColor: string |
| 54 | textColor: string |
| 55 | smooth: boolean |
| 56 | horizontal: boolean |
| 57 | stacked: boolean |
| 58 | areaFill: boolean |
| 59 | showPoints: boolean |
| 60 | showLegend: boolean |
| 61 | doughnutCutout: number |
| 62 | radarFill: boolean |
| 63 | configJson: string |
| 64 | } |
| 65 | textTarget?: { |
| 66 | type: 'text-node' |
| 67 | parentSelector: string |
| 68 | textNodeIndex: number |
| 69 | text: string |
| 70 | } |
| 71 | style?: { |
| 72 | zIndex?: number |
| 73 | opacity?: number |
| 74 | backgroundColor?: string |
| 75 | color?: string |
| 76 | fontSize?: string |
| 77 | fontWeight?: string |
| 78 | textAlign?: string |
| 79 | objectFit?: string |
| 80 | } |
| 81 | attrs?: { |
| 82 | alt?: string |
| 83 | poster?: string |
| 84 | controls?: boolean |
| 85 | muted?: boolean |
| 86 | loop?: boolean |
| 87 | autoplay?: boolean |
| 88 | playsInline?: boolean |
| 89 | preload?: string |
| 90 | } |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | export interface DeleteItem { |
| 95 | pageId: string |
| 96 | htmlPath: string |
| 97 | selector: string |
| 98 | } |
| 99 | |
| 100 | export interface AddElementItem { |
| 101 | pageId: string |
| 102 | htmlPath: string |
| 103 | parentSelector: string |
| 104 | htmlFragment: string |
| 105 | assignedBlockId: string |
| 106 | insertIndex: number |
| 107 | } |
| 108 | |
| 109 | export interface EditSnapshot { |
| 110 | dragEdits: DragEditItem[] |
| 111 | textEdits: TextEditItem[] |
| 112 | propertyEdits: PropertyEditItem[] |
| 113 | deletes: DeleteItem[] |
| 114 | addElements: AddElementItem[] |
| 115 | } |
| 116 | |
| 117 | type PageEditStacks = Record<string, EditSnapshot[]> |
| 118 | |
| 119 | // ─── Helpers ────────────────────────────────────────── |
| 120 | |
| 121 | function cloneSnapshot(s: EditSnapshot): EditSnapshot { |
| 122 | return { |
| 123 | dragEdits: s.dragEdits.map((e) => ({ |
| 124 | ...e, |
| 125 | layoutIsland: e.layoutIsland |
| 126 | ? { ...e.layoutIsland, children: e.layoutIsland.children.map((child) => ({ ...child })) } |
| 127 | : undefined, |
| 128 | childUpdates: e.childUpdates.map((c) => ({ ...c })) |
| 129 | })), |
| 130 | textEdits: s.textEdits.map((e) => ({ |
| 131 | ...e, |
| 132 | patch: { |
| 133 | text: e.patch.text, |
| 134 | style: { ...e.patch.style } |
| 135 | } |
| 136 | })), |
| 137 | propertyEdits: s.propertyEdits.map((e) => ({ |
| 138 | ...e, |
| 139 | patch: { |
| 140 | html: e.patch.html, |
| 141 | text: e.patch.text, |
| 142 | formula: e.patch.formula ? { ...e.patch.formula } : undefined, |
| 143 | chart: e.patch.chart |
| 144 | ? { |
| 145 | ...e.patch.chart, |
| 146 | labels: [...e.patch.chart.labels], |
| 147 | values: [...e.patch.chart.values], |
| 148 | series: (e.patch.chart.series || []).map((series) => ({ |
| 149 | ...series, |
| 150 | values: [...series.values] |
| 151 | })) |
| 152 | } |
| 153 | : undefined, |
| 154 | textTarget: e.patch.textTarget ? { ...e.patch.textTarget } : undefined, |
| 155 | style: e.patch.style ? { ...e.patch.style } : undefined, |
| 156 | attrs: e.patch.attrs ? { ...e.patch.attrs } : undefined |
| 157 | } |
| 158 | })), |
| 159 | deletes: s.deletes.map((e) => ({ ...e })), |
| 160 | addElements: s.addElements.map((e) => ({ ...e })) |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | function emptySnapshot(): EditSnapshot { |
| 165 | return { |
| 166 | dragEdits: [], |
| 167 | textEdits: [], |
| 168 | propertyEdits: [], |
| 169 | deletes: [], |
| 170 | addElements: [] |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | function getSnapshotForPageFromState( |
| 175 | state: Pick< |
| 176 | EditHistoryState, |
| 177 | 'dragEdits' | 'textEdits' | 'propertyEdits' | 'deletes' | 'addElements' |
| 178 | >, |
| 179 | pageId: string |
| 180 | ): EditSnapshot { |
| 181 | return { |
| 182 | dragEdits: state.dragEdits.filter((e) => e.pageId === pageId), |
| 183 | textEdits: state.textEdits.filter((e) => e.pageId === pageId), |
| 184 | propertyEdits: state.propertyEdits.filter((e) => e.pageId === pageId), |
| 185 | deletes: state.deletes.filter((e) => e.pageId === pageId), |
| 186 | addElements: state.addElements.filter((e) => e.pageId === pageId) |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | function replacePageSnapshot< |
| 191 | T extends Pick< |
| 192 | EditHistoryState, |
| 193 | 'dragEdits' | 'textEdits' | 'propertyEdits' | 'deletes' | 'addElements' |
| 194 | > |
| 195 | >(state: T, pageId: string, snapshot: EditSnapshot): Pick< |
| 196 | EditHistoryState, |
| 197 | 'dragEdits' | 'textEdits' | 'propertyEdits' | 'deletes' | 'addElements' |
| 198 | > { |
| 199 | return { |
| 200 | dragEdits: [ |
| 201 | ...state.dragEdits.filter((item) => item.pageId !== pageId), |
| 202 | ...snapshot.dragEdits |
| 203 | ], |
| 204 | textEdits: [ |
| 205 | ...state.textEdits.filter((item) => item.pageId !== pageId), |
| 206 | ...snapshot.textEdits |
| 207 | ], |
| 208 | propertyEdits: [ |
| 209 | ...state.propertyEdits.filter((item) => item.pageId !== pageId), |
| 210 | ...snapshot.propertyEdits |
| 211 | ], |
| 212 | deletes: [...state.deletes.filter((item) => item.pageId !== pageId), ...snapshot.deletes], |
| 213 | addElements: [ |
| 214 | ...state.addElements.filter((item) => item.pageId !== pageId), |
| 215 | ...snapshot.addElements |
| 216 | ] |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | function pushPageStack(stacks: PageEditStacks, pageId: string, snapshot: EditSnapshot): PageEditStacks { |
| 221 | return { |
| 222 | ...stacks, |
| 223 | [pageId]: [...(stacks[pageId] || []), cloneSnapshot(snapshot)] |
| 224 | } |
| 225 | } |
| 226 | |
| 227 | function clearPageStack(stacks: PageEditStacks, pageId: string): PageEditStacks { |
| 228 | const next = { ...stacks } |
| 229 | delete next[pageId] |
| 230 | return next |
| 231 | } |
| 232 | |
| 233 | function compactPatchObject<T extends Record<string, unknown>>(value: T | undefined): Partial<T> { |
| 234 | if (!value) return {} |
| 235 | return Object.fromEntries(Object.entries(value).filter(([, item]) => item !== undefined)) as Partial<T> |
| 236 | } |
| 237 | |
| 238 | function propertyPatchEquals(a: PropertyEditItem['patch'], b: PropertyEditItem['patch']): boolean { |
| 239 | const aStyle = compactPatchObject(a.style) |
| 240 | const bStyle = compactPatchObject(b.style) |
| 241 | const aAttrs = compactPatchObject(a.attrs) |
| 242 | const bAttrs = compactPatchObject(b.attrs) |
| 243 | return ( |
| 244 | a.text === b.text && |
| 245 | a.html === b.html && |
| 246 | JSON.stringify(a.formula || null) === JSON.stringify(b.formula || null) && |
| 247 | JSON.stringify(a.chart || null) === JSON.stringify(b.chart || null) && |
| 248 | JSON.stringify(a.textTarget || null) === JSON.stringify(b.textTarget || null) && |
| 249 | JSON.stringify(aStyle) === JSON.stringify(bStyle) && |
| 250 | JSON.stringify(aAttrs) === JSON.stringify(bAttrs) |
| 251 | ) |
| 252 | } |
| 253 | |
| 254 | export function extractSelectorBlockIds(selector: string): string[] { |
| 255 | if (!selector || !selector.includes('data-block-id')) return [] |
| 256 | const pattern = /data-block-id\s*=\s*(?:"([^"]+)"|'([^']+)'|([^\]\s]+))/g |
| 257 | const ids: string[] = [] |
| 258 | let match: RegExpExecArray | null |
| 259 | while ((match = pattern.exec(selector)) !== null) { |
| 260 | const id = match[1] || match[2] || match[3] |
| 261 | if (id && !ids.includes(id)) ids.push(id) |
| 262 | } |
| 263 | return ids |
| 264 | } |
| 265 | |
| 266 | export function selectorReferencesBlockId(selector: string, blockId: string): boolean { |
| 267 | return extractSelectorBlockIds(selector).includes(blockId) |
| 268 | } |
| 269 | |
| 270 | export function selectorsTargetSameBlock(selectorA: string, selectorB: string): boolean { |
| 271 | if (!selectorA || !selectorB) return false |
| 272 | if (selectorA === selectorB) return true |
| 273 | const idsA = extractSelectorBlockIds(selectorA) |
| 274 | if (idsA.length === 0) return false |
| 275 | const idsB = extractSelectorBlockIds(selectorB) |
| 276 | return idsB.some((id) => idsA.includes(id)) |
| 277 | } |
| 278 | |
| 279 | export function editTargetMatchesDeletedSelector( |
| 280 | editSelector: string, |
| 281 | deletedSelector: string, |
| 282 | editBlockId?: string |
| 283 | ): boolean { |
| 284 | if (selectorsTargetSameBlock(editSelector, deletedSelector)) return true |
| 285 | return Boolean(editBlockId && selectorReferencesBlockId(deletedSelector, editBlockId)) |
| 286 | } |
| 287 | |
| 288 | function deleteItemsTargetSameElement(a: DeleteItem, b: DeleteItem): boolean { |
| 289 | return ( |
| 290 | a.pageId === b.pageId && |
| 291 | a.htmlPath === b.htmlPath && |
| 292 | selectorsTargetSameBlock(a.selector, b.selector) |
| 293 | ) |
| 294 | } |
| 295 | |
| 296 | function isGeneratedBackgroundAdd(item: AddElementItem): boolean { |
| 297 | return ( |
| 298 | item.htmlFragment.includes('data-ppt-generated-background="1"') || |
| 299 | item.htmlFragment.includes("data-ppt-generated-background='1'") |
| 300 | ) |
| 301 | } |
| 302 | |
| 303 | function isGeneratedBackgroundDelete(item: DeleteItem): boolean { |
| 304 | return ( |
| 305 | item.selector === '[data-ppt-generated-background="1"]' || |
| 306 | item.selector === "[data-ppt-generated-background='1']" || |
| 307 | item.selector === '[data-ppt-generated-background-style="1"]' || |
| 308 | item.selector === "[data-ppt-generated-background-style='1']" |
| 309 | ) |
| 310 | } |
| 311 | |
| 312 | function appendUniqueDeletes(existing: DeleteItem[], incoming: DeleteItem[]): DeleteItem[] { |
| 313 | const next = [...existing] |
| 314 | for (const item of incoming) { |
| 315 | const duplicate = next.some((deleteItem) => deleteItemsTargetSameElement(deleteItem, item)) |
| 316 | if (!duplicate) next.push(item) |
| 317 | } |
| 318 | return next |
| 319 | } |
| 320 | |
| 321 | // ─── Store ──────────────────────────────────────────── |
| 322 | |
| 323 | interface EditHistoryState { |
| 324 | dragEdits: DragEditItem[] |
| 325 | textEdits: TextEditItem[] |
| 326 | propertyEdits: PropertyEditItem[] |
| 327 | deletes: DeleteItem[] |
| 328 | addElements: AddElementItem[] |
| 329 | undoStacks: PageEditStacks |
| 330 | redoStacks: PageEditStacks |
| 331 | savedCheckpoints: Record<string, EditSnapshot> |
| 332 | |
| 333 | upsertDragEdit: (edit: DragEditItem) => void |
| 334 | upsertTextEdit: (edit: TextEditItem) => void |
| 335 | upsertPropertyEdit: (edit: PropertyEditItem) => void |
| 336 | addDelete: (item: DeleteItem) => void |
| 337 | addElement: (item: AddElementItem) => void |
| 338 | addElementWithDeletes: (item: AddElementItem, deletes: DeleteItem[]) => void |
| 339 | undo: (pageId: string) => EditSnapshot | null |
| 340 | redo: (pageId: string) => EditSnapshot | null |
| 341 | canUndo: (pageId?: string | null) => boolean |
| 342 | canRedo: (pageId?: string | null) => boolean |
| 343 | hasPendingEdits: (pageId?: string | null) => boolean |
| 344 | markPageSaved: (pageId: string) => void |
| 345 | clearPage: (pageId: string) => void |
| 346 | clear: () => void |
| 347 | getSnapshotForPage: (pageId: string) => EditSnapshot |
| 348 | } |
| 349 | |
| 350 | export const useEditHistoryStore = create<EditHistoryState>((set, get) => ({ |
| 351 | dragEdits: [], |
| 352 | textEdits: [], |
| 353 | propertyEdits: [], |
| 354 | deletes: [], |
| 355 | addElements: [], |
| 356 | undoStacks: {}, |
| 357 | redoStacks: {}, |
| 358 | savedCheckpoints: {}, |
| 359 | |
| 360 | upsertDragEdit: (edit) => |
| 361 | set((state) => { |
| 362 | const snapshot = getSnapshotForPageFromState(state, edit.pageId) |
| 363 | const idx = state.dragEdits.findIndex( |
| 364 | (item) => |
| 365 | item.pageId === edit.pageId && |
| 366 | item.htmlPath === edit.htmlPath && |
| 367 | item.selector === edit.selector |
| 368 | ) |
| 369 | let next: DragEditItem[] |
| 370 | if (idx < 0) { |
| 371 | next = [...state.dragEdits, edit] |
| 372 | } else { |
| 373 | // Merge: zIndexOnly edits preserve existing position data; |
| 374 | // drag edits preserve existing zIndex if new edit has none |
| 375 | const existing = state.dragEdits[idx] |
| 376 | const merged: DragEditItem = { |
| 377 | ...edit, |
| 378 | zIndex: edit.zIndex ?? existing.zIndex, |
| 379 | layoutIsland: edit.layoutIsland ?? existing.layoutIsland |
| 380 | } |
| 381 | if (edit.zIndexOnly) { |
| 382 | // Z-index-only change: keep existing position data, preserve flag |
| 383 | merged.x = existing.x |
| 384 | merged.y = existing.y |
| 385 | merged.width = existing.width |
| 386 | merged.height = existing.height |
| 387 | merged.layoutIsland = existing.layoutIsland |
| 388 | merged.childUpdates = existing.childUpdates |
| 389 | merged.isAbsoluteMode = existing.isAbsoluteMode |
| 390 | merged.zIndexOnly = true |
| 391 | } else { |
| 392 | // Full drag edit: clear zIndexOnly flag since position is also being updated |
| 393 | merged.zIndexOnly = undefined |
| 394 | } |
| 395 | next = state.dragEdits.map((item, i) => (i === idx ? merged : item)) |
| 396 | } |
| 397 | return { |
| 398 | undoStacks: pushPageStack(state.undoStacks, edit.pageId, snapshot), |
| 399 | redoStacks: clearPageStack(state.redoStacks, edit.pageId), |
| 400 | dragEdits: next |
| 401 | } |
| 402 | }), |
| 403 | |
| 404 | upsertTextEdit: (edit) => |
| 405 | set((state) => { |
| 406 | const snapshot = getSnapshotForPageFromState(state, edit.pageId) |
| 407 | const idx = state.textEdits.findIndex( |
| 408 | (item) => |
| 409 | item.pageId === edit.pageId && |
| 410 | item.selector === edit.selector |
| 411 | ) |
| 412 | const next = |
| 413 | idx < 0 |
| 414 | ? [...state.textEdits, edit] |
| 415 | : state.textEdits.map((item, i) => (i === idx ? edit : item)) |
| 416 | return { |
| 417 | undoStacks: pushPageStack(state.undoStacks, edit.pageId, snapshot), |
| 418 | redoStacks: clearPageStack(state.redoStacks, edit.pageId), |
| 419 | textEdits: next |
| 420 | } |
| 421 | }), |
| 422 | |
| 423 | upsertPropertyEdit: (edit) => |
| 424 | set((state) => { |
| 425 | const snapshot = getSnapshotForPageFromState(state, edit.pageId) |
| 426 | const idx = state.propertyEdits.findIndex( |
| 427 | (item) => |
| 428 | item.pageId === edit.pageId && |
| 429 | item.htmlPath === edit.htmlPath && |
| 430 | item.selector === edit.selector |
| 431 | ) |
| 432 | const mergePatch = (prev: PropertyEditItem['patch'], next: PropertyEditItem['patch']): PropertyEditItem['patch'] => ({ |
| 433 | html: next.html ?? prev.html, |
| 434 | text: next.text ?? prev.text, |
| 435 | formula: next.formula ?? prev.formula, |
| 436 | chart: next.chart ?? prev.chart, |
| 437 | textTarget: next.textTarget ?? prev.textTarget, |
| 438 | style: { |
| 439 | ...(prev.style || {}), |
| 440 | ...(next.style || {}) |
| 441 | }, |
| 442 | attrs: { |
| 443 | ...(prev.attrs || {}), |
| 444 | ...(next.attrs || {}) |
| 445 | } |
| 446 | }) |
| 447 | const next = |
| 448 | idx < 0 |
| 449 | ? [...state.propertyEdits, edit] |
| 450 | : state.propertyEdits.map((item, i) => |
| 451 | i === idx ? { ...item, ...edit, patch: mergePatch(item.patch, edit.patch) } : item |
| 452 | ) |
| 453 | if (idx >= 0 && propertyPatchEquals(state.propertyEdits[idx].patch, next[idx].patch)) { |
| 454 | return state |
| 455 | } |
| 456 | return { |
| 457 | undoStacks: pushPageStack(state.undoStacks, edit.pageId, snapshot), |
| 458 | redoStacks: clearPageStack(state.redoStacks, edit.pageId), |
| 459 | propertyEdits: next |
| 460 | } |
| 461 | }), |
| 462 | |
| 463 | addDelete: (item) => |
| 464 | set((state) => { |
| 465 | const snapshot = getSnapshotForPageFromState(state, item.pageId) |
| 466 | const pendingAdd = state.addElements.find( |
| 467 | (add) => |
| 468 | add.pageId === item.pageId && |
| 469 | add.htmlPath === item.htmlPath && |
| 470 | selectorReferencesBlockId(item.selector, add.assignedBlockId) |
| 471 | ) |
| 472 | if (pendingAdd) { |
| 473 | const cancelGeneratedBackgroundReplacement = isGeneratedBackgroundAdd(pendingAdd) |
| 474 | return { |
| 475 | undoStacks: pushPageStack(state.undoStacks, item.pageId, snapshot), |
| 476 | redoStacks: clearPageStack(state.redoStacks, item.pageId), |
| 477 | dragEdits: state.dragEdits.filter( |
| 478 | (edit) => |
| 479 | edit.pageId !== item.pageId || |
| 480 | !editTargetMatchesDeletedSelector(edit.selector, item.selector) |
| 481 | ), |
| 482 | textEdits: state.textEdits.filter( |
| 483 | (edit) => |
| 484 | edit.pageId !== item.pageId || |
| 485 | !editTargetMatchesDeletedSelector(edit.selector, item.selector) |
| 486 | ), |
| 487 | propertyEdits: state.propertyEdits.filter( |
| 488 | (edit) => |
| 489 | edit.pageId !== item.pageId || |
| 490 | !editTargetMatchesDeletedSelector(edit.selector, item.selector, edit.blockId) |
| 491 | ), |
| 492 | deletes: cancelGeneratedBackgroundReplacement |
| 493 | ? state.deletes.filter( |
| 494 | (deleteItem) => |
| 495 | deleteItem.pageId !== item.pageId || |
| 496 | deleteItem.htmlPath !== item.htmlPath || |
| 497 | !isGeneratedBackgroundDelete(deleteItem) |
| 498 | ) |
| 499 | : state.deletes, |
| 500 | addElements: state.addElements.filter( |
| 501 | (add) => |
| 502 | add !== pendingAdd && |
| 503 | !( |
| 504 | cancelGeneratedBackgroundReplacement && |
| 505 | add.pageId === item.pageId && |
| 506 | add.htmlPath === item.htmlPath && |
| 507 | isGeneratedBackgroundAdd(add) |
| 508 | ) |
| 509 | ) |
| 510 | } |
| 511 | } |
| 512 | const exists = state.deletes.some((deleteItem) => deleteItemsTargetSameElement(deleteItem, item)) |
| 513 | if (exists) return state |
| 514 | return { |
| 515 | undoStacks: pushPageStack(state.undoStacks, item.pageId, snapshot), |
| 516 | redoStacks: clearPageStack(state.redoStacks, item.pageId), |
| 517 | deletes: [...state.deletes, item] |
| 518 | } |
| 519 | }), |
| 520 | |
| 521 | addElement: (item) => |
| 522 | set((state) => { |
| 523 | const snapshot = getSnapshotForPageFromState(state, item.pageId) |
| 524 | return { |
| 525 | undoStacks: pushPageStack(state.undoStacks, item.pageId, snapshot), |
| 526 | redoStacks: clearPageStack(state.redoStacks, item.pageId), |
| 527 | addElements: [...state.addElements, item] |
| 528 | } |
| 529 | }), |
| 530 | |
| 531 | addElementWithDeletes: (item, deletes) => |
| 532 | set((state) => { |
| 533 | const pageId = item.pageId |
| 534 | const snapshot = getSnapshotForPageFromState(state, pageId) |
| 535 | const generatedBackgroundAdd = isGeneratedBackgroundAdd(item) |
| 536 | const existingDeletes = generatedBackgroundAdd |
| 537 | ? state.deletes.filter( |
| 538 | (deleteItem) => |
| 539 | deleteItem.pageId !== pageId || |
| 540 | deleteItem.htmlPath !== item.htmlPath || |
| 541 | !isGeneratedBackgroundDelete(deleteItem) |
| 542 | ) |
| 543 | : state.deletes |
| 544 | const existingAddElements = generatedBackgroundAdd |
| 545 | ? state.addElements.filter( |
| 546 | (add) => |
| 547 | add.pageId !== pageId || |
| 548 | add.htmlPath !== item.htmlPath || |
| 549 | !isGeneratedBackgroundAdd(add) |
| 550 | ) |
| 551 | : state.addElements |
| 552 | return { |
| 553 | undoStacks: pushPageStack(state.undoStacks, pageId, snapshot), |
| 554 | redoStacks: clearPageStack(state.redoStacks, pageId), |
| 555 | deletes: appendUniqueDeletes(existingDeletes, deletes), |
| 556 | addElements: [...existingAddElements, item] |
| 557 | } |
| 558 | }), |
| 559 | |
| 560 | undo: (pageId) => { |
| 561 | const state = get() |
| 562 | const pageUndoStack = state.undoStacks[pageId] || [] |
| 563 | if (pageUndoStack.length === 0) return null |
| 564 | const prev = pageUndoStack[pageUndoStack.length - 1] |
| 565 | const current = getSnapshotForPageFromState(state, pageId) |
| 566 | set({ |
| 567 | undoStacks: { |
| 568 | ...state.undoStacks, |
| 569 | [pageId]: pageUndoStack.slice(0, -1) |
| 570 | }, |
| 571 | redoStacks: pushPageStack(state.redoStacks, pageId, current), |
| 572 | ...replacePageSnapshot(state, pageId, prev) |
| 573 | }) |
| 574 | return cloneSnapshot(prev) |
| 575 | }, |
| 576 | |
| 577 | redo: (pageId) => { |
| 578 | const state = get() |
| 579 | const pageRedoStack = state.redoStacks[pageId] || [] |
| 580 | if (pageRedoStack.length === 0) return null |
| 581 | const next = pageRedoStack[pageRedoStack.length - 1] |
| 582 | const current = getSnapshotForPageFromState(state, pageId) |
| 583 | set({ |
| 584 | redoStacks: { |
| 585 | ...state.redoStacks, |
| 586 | [pageId]: pageRedoStack.slice(0, -1) |
| 587 | }, |
| 588 | undoStacks: pushPageStack(state.undoStacks, pageId, current), |
| 589 | ...replacePageSnapshot(state, pageId, next) |
| 590 | }) |
| 591 | return cloneSnapshot(next) |
| 592 | }, |
| 593 | |
| 594 | canUndo: (pageId) => Boolean(pageId && (get().undoStacks[pageId]?.length || 0) > 0), |
| 595 | canRedo: (pageId) => Boolean(pageId && (get().redoStacks[pageId]?.length || 0) > 0), |
| 596 | hasPendingEdits: (pageId) => { |
| 597 | if (!pageId) return false |
| 598 | const state = get() |
| 599 | const snapshot = getSnapshotForPageFromState(state, pageId) |
| 600 | return Boolean( |
| 601 | snapshot.dragEdits.length > 0 || |
| 602 | snapshot.textEdits.length > 0 || |
| 603 | snapshot.propertyEdits.length > 0 || |
| 604 | snapshot.deletes.length > 0 || |
| 605 | snapshot.addElements.length > 0 |
| 606 | ) |
| 607 | }, |
| 608 | |
| 609 | markPageSaved: (pageId) => |
| 610 | set((state) => ({ |
| 611 | ...replacePageSnapshot(state, pageId, emptySnapshot()), |
| 612 | undoStacks: clearPageStack(state.undoStacks, pageId), |
| 613 | redoStacks: clearPageStack(state.redoStacks, pageId), |
| 614 | savedCheckpoints: { |
| 615 | ...state.savedCheckpoints, |
| 616 | [pageId]: emptySnapshot() |
| 617 | } |
| 618 | })), |
| 619 | |
| 620 | clearPage: (pageId) => |
| 621 | set((state) => ({ |
| 622 | dragEdits: state.dragEdits.filter((item) => item.pageId !== pageId), |
| 623 | textEdits: state.textEdits.filter((item) => item.pageId !== pageId), |
| 624 | propertyEdits: state.propertyEdits.filter((item) => item.pageId !== pageId), |
| 625 | deletes: state.deletes.filter((item) => item.pageId !== pageId), |
| 626 | addElements: state.addElements.filter((item) => item.pageId !== pageId), |
| 627 | undoStacks: clearPageStack(state.undoStacks, pageId), |
| 628 | redoStacks: clearPageStack(state.redoStacks, pageId), |
| 629 | savedCheckpoints: { |
| 630 | ...state.savedCheckpoints, |
| 631 | [pageId]: emptySnapshot() |
| 632 | } |
| 633 | })), |
| 634 | |
| 635 | clear: () => |
| 636 | set({ |
| 637 | dragEdits: [], |
| 638 | textEdits: [], |
| 639 | propertyEdits: [], |
| 640 | deletes: [], |
| 641 | addElements: [], |
| 642 | undoStacks: {}, |
| 643 | redoStacks: {}, |
| 644 | savedCheckpoints: {} |
| 645 | }), |
| 646 | |
| 647 | getSnapshotForPage: (pageId) => { |
| 648 | return cloneSnapshot(getSnapshotForPageFromState(get(), pageId)) |
| 649 | } |
| 650 | })) |
| 651 |