| 1 | /** |
| 2 | * Unit tests for index-runtime.js logic: |
| 3 | * - playback-mode click routing |
| 4 | * - Transition type/direction resolution |
| 5 | * - Duration clamping |
| 6 | * - Reduced motion guard |
| 7 | * |
| 8 | * These test the actual logic extracted from the runtime, not abstract mocks. |
| 9 | */ |
| 10 | import { describe, it, expect } from 'vitest' |
| 11 | import fs from 'node:fs' |
| 12 | import path from 'node:path' |
| 13 | |
| 14 | function advanceClickState( |
| 15 | clicks: { total: number; advance: () => boolean } | null | undefined |
| 16 | ): boolean { |
| 17 | if (!clicks) return false |
| 18 | // Only forward when the page actually has click-triggered animation steps |
| 19 | if (clicks.total > 0 && typeof clicks.advance === 'function') { |
| 20 | return clicks.advance() |
| 21 | } |
| 22 | return false |
| 23 | } |
| 24 | |
| 25 | const indexTransitionTypes = new Set([ |
| 26 | 'none', |
| 27 | 'fade', |
| 28 | 'slide-left', |
| 29 | 'slide-up', |
| 30 | 'push', |
| 31 | 'wipe', |
| 32 | 'zoom', |
| 33 | 'flip', |
| 34 | 'stack', |
| 35 | 'rotate', |
| 36 | 'cube', |
| 37 | 'cover-flow', |
| 38 | 'blur', |
| 39 | 'iris', |
| 40 | 'swing', |
| 41 | 'center-reveal' |
| 42 | ]) |
| 43 | |
| 44 | function normalizeIndexTransitionType(type: string): string { |
| 45 | return indexTransitionTypes.has(type) ? type : 'fade' |
| 46 | } |
| 47 | |
| 48 | function clampTransitionDuration(type: string, value: number | undefined): number { |
| 49 | if (type === 'none') return 0 |
| 50 | if (!Number.isFinite(value)) return 600 |
| 51 | return Math.max(120, Math.min(1200, Math.round(value as number))) |
| 52 | } |
| 53 | |
| 54 | function transitionDirection(previousIndex: number, nextIndex: number): 1 | -1 { |
| 55 | return previousIndex >= 0 && nextIndex < previousIndex ? -1 : 1 |
| 56 | } |
| 57 | |
| 58 | function slideEntryValue(type: string, direction: 1 | -1): string { |
| 59 | if (type === 'slide-left' || type === 'push') return `${100 * direction}%` |
| 60 | if (type === 'slide-up') return `${100 * direction}%` |
| 61 | if (type === 'flip') return `${72 * direction}deg` |
| 62 | if (type === 'wipe') return direction > 0 ? 'inset(0 0 0 100%)' : 'inset(0 100% 0 0)' |
| 63 | return '0' |
| 64 | } |
| 65 | |
| 66 | function shouldBindFrameDocument(previousDocument: object | undefined, nextDocument: object | null): boolean { |
| 67 | return Boolean(nextDocument && previousDocument !== nextDocument) |
| 68 | } |
| 69 | |
| 70 | function simulateEnsureFrameLoadedOrder(): string[] { |
| 71 | const calls: string[] = [] |
| 72 | const frame = { |
| 73 | addEventListener: (eventName: string) => { |
| 74 | calls.push(`listen:${eventName}`) |
| 75 | }, |
| 76 | set src(_value: string) { |
| 77 | calls.push('set-src') |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | frame.addEventListener('load') |
| 82 | frame.src = 'page.html' |
| 83 | return calls |
| 84 | } |
| 85 | |
| 86 | function simulateWaitForFrameLoadBeforeActivation(): string[] { |
| 87 | const calls: string[] = [] |
| 88 | const frame = { |
| 89 | listeners: {} as Record<string, () => void>, |
| 90 | addEventListener: (eventName: string, callback: () => void) => { |
| 91 | calls.push(`listen:${eventName}`) |
| 92 | frame.listeners[eventName] = callback |
| 93 | }, |
| 94 | set src(_value: string) { |
| 95 | calls.push('set-src') |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | frame.addEventListener('load', () => { |
| 100 | calls.push('load') |
| 101 | calls.push('activate') |
| 102 | }) |
| 103 | frame.src = 'page.html' |
| 104 | calls.push('before-load') |
| 105 | frame.listeners.load() |
| 106 | return calls |
| 107 | } |
| 108 | |
| 109 | function adjacentPageKeys(keys: string[], activeKey: string): string[] { |
| 110 | const index = keys.indexOf(activeKey) |
| 111 | if (index < 0) return [] |
| 112 | return [keys[index - 1], keys[index + 1]].filter(Boolean) |
| 113 | } |
| 114 | |
| 115 | function shouldEnableDeckPlayback(args: { |
| 116 | embedMode: boolean |
| 117 | presentMode: boolean |
| 118 | }): boolean { |
| 119 | return args.presentMode && !args.embedMode |
| 120 | } |
| 121 | |
| 122 | function shouldAnimateDeckTransition(args: { |
| 123 | presentMode: boolean |
| 124 | transitionType: string |
| 125 | hasPreviousPage: boolean |
| 126 | samePage: boolean |
| 127 | }): boolean { |
| 128 | return ( |
| 129 | args.presentMode && |
| 130 | args.transitionType !== 'none' && |
| 131 | args.hasPreviousPage && |
| 132 | !args.samePage |
| 133 | ) |
| 134 | } |
| 135 | |
| 136 | function resolveFrameClickAction(args: { |
| 137 | playbackMode: boolean |
| 138 | forwarded: boolean |
| 139 | }): 'advance-animation' | 'goto-next' | 'none' { |
| 140 | if (!args.playbackMode) return 'none' |
| 141 | if (args.forwarded) return 'advance-animation' |
| 142 | return 'goto-next' |
| 143 | } |
| 144 | |
| 145 | function shouldAcceptFramePlaybackMessage(args: { |
| 146 | hasFrame: boolean |
| 147 | source: object | null |
| 148 | frameWindow: object |
| 149 | }): boolean { |
| 150 | if (!args.hasFrame) return false |
| 151 | return !args.source || args.source === args.frameWindow |
| 152 | } |
| 153 | |
| 154 | function clearPendingPlaybackRequestsForTest( |
| 155 | pending: Record<string, number>, |
| 156 | clearTimeoutFn: (id: number) => void |
| 157 | ): void { |
| 158 | Object.keys(pending).forEach((requestId) => { |
| 159 | clearTimeoutFn(pending[requestId]) |
| 160 | delete pending[requestId] |
| 161 | }) |
| 162 | } |
| 163 | |
| 164 | function normalizeWheelDeltaForTest(event: { |
| 165 | deltaX: number |
| 166 | deltaY: number |
| 167 | deltaMode: number |
| 168 | }): number { |
| 169 | let delta = Math.abs(event.deltaY) >= Math.abs(event.deltaX) ? event.deltaY : event.deltaX |
| 170 | if (event.deltaMode === 1) delta *= 16 |
| 171 | else if (event.deltaMode === 2) delta *= 900 |
| 172 | return delta |
| 173 | } |
| 174 | |
| 175 | function createWheelNavigatorForTest(args?: { |
| 176 | threshold?: number |
| 177 | cooldown?: number |
| 178 | now?: () => number |
| 179 | navigate?: (offset: number) => boolean |
| 180 | }) { |
| 181 | const threshold = args?.threshold ?? 80 |
| 182 | const cooldown = args?.cooldown ?? 520 |
| 183 | const now = args?.now ?? (() => Date.now()) |
| 184 | const navigate = args?.navigate ?? (() => true) |
| 185 | let wheelDeltaBuffer = 0 |
| 186 | let wheelGestureLocked = false |
| 187 | let wheelGestureLockDirection = 0 |
| 188 | let lastWheelNavigateAt = 0 |
| 189 | const offsets: number[] = [] |
| 190 | |
| 191 | return { |
| 192 | offsets, |
| 193 | unlockGesture() { |
| 194 | wheelDeltaBuffer = 0 |
| 195 | wheelGestureLocked = false |
| 196 | wheelGestureLockDirection = 0 |
| 197 | }, |
| 198 | handle(event: { |
| 199 | deltaX: number |
| 200 | deltaY: number |
| 201 | deltaMode: number |
| 202 | ctrlKey?: boolean |
| 203 | metaKey?: boolean |
| 204 | editableTarget?: boolean |
| 205 | deckSwitcherTarget?: boolean |
| 206 | preventDefault: () => void |
| 207 | }) { |
| 208 | if (event.ctrlKey || event.metaKey) return |
| 209 | if (event.editableTarget || event.deckSwitcherTarget) return |
| 210 | |
| 211 | const delta = normalizeWheelDeltaForTest(event) |
| 212 | if (!Number.isFinite(delta) || Math.abs(delta) < 1) return |
| 213 | const direction = delta > 0 ? 1 : -1 |
| 214 | |
| 215 | if (Math.sign(delta) !== Math.sign(wheelDeltaBuffer)) wheelDeltaBuffer = 0 |
| 216 | wheelDeltaBuffer += delta |
| 217 | |
| 218 | if (Math.abs(wheelDeltaBuffer) < threshold) return |
| 219 | |
| 220 | if (wheelGestureLocked && wheelGestureLockDirection && direction !== wheelGestureLockDirection) { |
| 221 | wheelGestureLocked = false |
| 222 | wheelGestureLockDirection = 0 |
| 223 | lastWheelNavigateAt = 0 |
| 224 | } |
| 225 | |
| 226 | if (wheelGestureLocked) { |
| 227 | wheelDeltaBuffer = 0 |
| 228 | event.preventDefault() |
| 229 | return |
| 230 | } |
| 231 | |
| 232 | const currentTime = now() |
| 233 | if (currentTime - lastWheelNavigateAt < cooldown) { |
| 234 | wheelDeltaBuffer = 0 |
| 235 | wheelGestureLocked = true |
| 236 | wheelGestureLockDirection = direction |
| 237 | event.preventDefault() |
| 238 | return |
| 239 | } |
| 240 | |
| 241 | const offset = wheelDeltaBuffer > 0 ? 1 : -1 |
| 242 | wheelDeltaBuffer = 0 |
| 243 | event.preventDefault() |
| 244 | if (navigate(offset)) { |
| 245 | wheelGestureLocked = true |
| 246 | wheelGestureLockDirection = offset |
| 247 | lastWheelNavigateAt = currentTime |
| 248 | offsets.push(offset) |
| 249 | } else { |
| 250 | wheelGestureLocked = false |
| 251 | wheelGestureLockDirection = 0 |
| 252 | lastWheelNavigateAt = 0 |
| 253 | } |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | describe('click state advance helper (total > 0 guard)', () => { |
| 259 | function makeClicks(total: number) { |
| 260 | let current = 0 |
| 261 | return { |
| 262 | total, |
| 263 | advance: () => { |
| 264 | if (total > 0 && current >= total) return false |
| 265 | current++ |
| 266 | return true |
| 267 | } |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | it('returns false when clicks is null/undefined', () => { |
| 272 | expect(advanceClickState(null)).toBe(false) |
| 273 | expect(advanceClickState(undefined)).toBe(false) |
| 274 | }) |
| 275 | |
| 276 | it('returns false when total is 0 (no click-triggered elements)', () => { |
| 277 | const clicks = makeClicks(0) |
| 278 | expect(advanceClickState(clicks)).toBe(false) |
| 279 | }) |
| 280 | |
| 281 | it('returns true when step consumed', () => { |
| 282 | const clicks = makeClicks(3) |
| 283 | expect(advanceClickState(clicks)).toBe(true) |
| 284 | }) |
| 285 | |
| 286 | it('returns false when all steps exhausted', () => { |
| 287 | const clicks = makeClicks(2) |
| 288 | clicks.advance() // → 1 |
| 289 | clicks.advance() // → 2 |
| 290 | expect(advanceClickState(clicks)).toBe(false) // exhausted, nav should proceed |
| 291 | }) |
| 292 | |
| 293 | it('allows nav after last click step exhausted', () => { |
| 294 | const clicks = makeClicks(1) |
| 295 | expect(advanceClickState(clicks)).toBe(true) // consumed step 1 |
| 296 | expect(advanceClickState(clicks)).toBe(false) // exhausted → navigate |
| 297 | }) |
| 298 | }) |
| 299 | |
| 300 | describe('iframe load binding order', () => { |
| 301 | it('registers load listener before setting iframe src', () => { |
| 302 | expect(simulateEnsureFrameLoadedOrder()).toEqual(['listen:load', 'set-src']) |
| 303 | }) |
| 304 | |
| 305 | it('waits for iframe load before activating the target page', () => { |
| 306 | expect(simulateWaitForFrameLoadBeforeActivation()).toEqual([ |
| 307 | 'listen:load', |
| 308 | 'set-src', |
| 309 | 'before-load', |
| 310 | 'load', |
| 311 | 'activate' |
| 312 | ]) |
| 313 | }) |
| 314 | |
| 315 | it('rebinds when iframe document changes after reload', () => { |
| 316 | const firstDocument = {} |
| 317 | const secondDocument = {} |
| 318 | |
| 319 | expect(shouldBindFrameDocument(undefined, firstDocument)).toBe(true) |
| 320 | expect(shouldBindFrameDocument(firstDocument, firstDocument)).toBe(false) |
| 321 | expect(shouldBindFrameDocument(firstDocument, secondDocument)).toBe(true) |
| 322 | }) |
| 323 | }) |
| 324 | |
| 325 | describe('adjacent page prefetch selection', () => { |
| 326 | it('prefetches only immediate neighbors', () => { |
| 327 | expect(adjacentPageKeys(['p1', 'p2', 'p3', 'p4'], 'p2')).toEqual(['p1', 'p3']) |
| 328 | expect(adjacentPageKeys(['p1', 'p2', 'p3', 'p4'], 'p1')).toEqual(['p2']) |
| 329 | expect(adjacentPageKeys(['p1', 'p2', 'p3', 'p4'], 'p4')).toEqual(['p3']) |
| 330 | }) |
| 331 | }) |
| 332 | |
| 333 | describe('iframe click behavior', () => { |
| 334 | it('ignores iframe clicks outside deck playback mode', () => { |
| 335 | expect(resolveFrameClickAction({ playbackMode: false, forwarded: true })).toBe('none') |
| 336 | expect(resolveFrameClickAction({ playbackMode: false, forwarded: false })).toBe('none') |
| 337 | }) |
| 338 | |
| 339 | it('keeps controls visible while supporting clicks in full-deck playback', () => { |
| 340 | expect(resolveFrameClickAction({ |
| 341 | playbackMode: true, |
| 342 | forwarded: true |
| 343 | })).toBe('advance-animation') |
| 344 | expect(resolveFrameClickAction({ |
| 345 | playbackMode: true, |
| 346 | forwarded: false |
| 347 | })).toBe('goto-next') |
| 348 | }) |
| 349 | }) |
| 350 | |
| 351 | describe('index.html deck playback mode', () => { |
| 352 | it('enables click playback for full-deck index without forcing present CSS', () => { |
| 353 | expect(shouldEnableDeckPlayback({ embedMode: false, presentMode: true })).toBe(true) |
| 354 | }) |
| 355 | |
| 356 | it('does not enable deck playback in embed mode', () => { |
| 357 | expect(shouldEnableDeckPlayback({ embedMode: true, presentMode: true })).toBe(false) |
| 358 | }) |
| 359 | |
| 360 | it('does not enable click playback in ordinary preview mode', () => { |
| 361 | expect(shouldEnableDeckPlayback({ embedMode: false, presentMode: false })).toBe(false) |
| 362 | }) |
| 363 | |
| 364 | it('does not animate page transitions in ordinary preview mode', () => { |
| 365 | expect( |
| 366 | shouldAnimateDeckTransition({ |
| 367 | presentMode: false, |
| 368 | transitionType: 'fade', |
| 369 | hasPreviousPage: true, |
| 370 | samePage: false |
| 371 | }) |
| 372 | ).toBe(false) |
| 373 | expect( |
| 374 | shouldAnimateDeckTransition({ |
| 375 | presentMode: true, |
| 376 | transitionType: 'fade', |
| 377 | hasPreviousPage: true, |
| 378 | samePage: false |
| 379 | }) |
| 380 | ).toBe(true) |
| 381 | }) |
| 382 | |
| 383 | it('derives playback mode from present mode in the index runtime', () => { |
| 384 | const source = fs.readFileSync( |
| 385 | path.resolve(process.cwd(), 'resources/index-runtime.js'), |
| 386 | 'utf8' |
| 387 | ) |
| 388 | expect(source).toContain('var playbackMode = presentMode && !embedMode;') |
| 389 | expect(source).toContain("url.searchParams.set('pptPlayback', playbackMode ? '1' : '0');") |
| 390 | expect(source).toContain('presentMode &&\n indexTransitionType !== \'none\'') |
| 391 | }) |
| 392 | }) |
| 393 | |
| 394 | describe('frame playback postMessage source guard', () => { |
| 395 | it('accepts messages from the active frame window', () => { |
| 396 | const frameWindow = {} |
| 397 | expect(shouldAcceptFramePlaybackMessage({ |
| 398 | hasFrame: true, |
| 399 | source: frameWindow, |
| 400 | frameWindow |
| 401 | })).toBe(true) |
| 402 | }) |
| 403 | |
| 404 | it('accepts null source because some presentation webviews omit event.source', () => { |
| 405 | expect(shouldAcceptFramePlaybackMessage({ |
| 406 | hasFrame: true, |
| 407 | source: null, |
| 408 | frameWindow: {} |
| 409 | })).toBe(true) |
| 410 | }) |
| 411 | |
| 412 | it('rejects messages from another frame window', () => { |
| 413 | expect(shouldAcceptFramePlaybackMessage({ |
| 414 | hasFrame: true, |
| 415 | source: {}, |
| 416 | frameWindow: {} |
| 417 | })).toBe(false) |
| 418 | }) |
| 419 | }) |
| 420 | |
| 421 | describe('pending playback request cleanup', () => { |
| 422 | it('clears and removes all pending fallback timers', () => { |
| 423 | const pending = { a: 1, b: 2 } |
| 424 | const cleared: number[] = [] |
| 425 | |
| 426 | clearPendingPlaybackRequestsForTest(pending, (id) => cleared.push(id)) |
| 427 | |
| 428 | expect(cleared).toEqual([1, 2]) |
| 429 | expect(pending).toEqual({}) |
| 430 | }) |
| 431 | }) |
| 432 | |
| 433 | describe('wheel page navigation', () => { |
| 434 | const wheel = (deltaY: number, overrides: Partial<{ |
| 435 | deltaX: number |
| 436 | deltaMode: number |
| 437 | ctrlKey: boolean |
| 438 | metaKey: boolean |
| 439 | editableTarget: boolean |
| 440 | deckSwitcherTarget: boolean |
| 441 | preventDefault: () => void |
| 442 | }> = {}) => ({ |
| 443 | deltaX: overrides.deltaX ?? 0, |
| 444 | deltaY, |
| 445 | deltaMode: overrides.deltaMode ?? 0, |
| 446 | ctrlKey: overrides.ctrlKey, |
| 447 | metaKey: overrides.metaKey, |
| 448 | editableTarget: overrides.editableTarget, |
| 449 | deckSwitcherTarget: overrides.deckSwitcherTarget, |
| 450 | preventDefault: overrides.preventDefault ?? (() => {}) |
| 451 | }) |
| 452 | |
| 453 | it('accumulates small trackpad deltas before navigating', () => { |
| 454 | let time = 1000 |
| 455 | let prevented = 0 |
| 456 | const navigator = createWheelNavigatorForTest({ now: () => time }) |
| 457 | |
| 458 | navigator.handle(wheel(30, { preventDefault: () => prevented++ })) |
| 459 | navigator.handle(wheel(30, { preventDefault: () => prevented++ })) |
| 460 | expect(navigator.offsets).toEqual([]) |
| 461 | |
| 462 | navigator.handle(wheel(25, { preventDefault: () => prevented++ })) |
| 463 | expect(navigator.offsets).toEqual([1]) |
| 464 | expect(prevented).toBe(1) |
| 465 | }) |
| 466 | |
| 467 | it('uses upward wheel motion for previous page', () => { |
| 468 | const navigator = createWheelNavigatorForTest({ now: () => 1000 }) |
| 469 | |
| 470 | navigator.handle(wheel(-90)) |
| 471 | |
| 472 | expect(navigator.offsets).toEqual([-1]) |
| 473 | }) |
| 474 | |
| 475 | it('locks a continuous wheel gesture so one trackpad swipe does not flip many pages', () => { |
| 476 | let time = 1000 |
| 477 | let prevented = 0 |
| 478 | const navigator = createWheelNavigatorForTest({ now: () => time }) |
| 479 | |
| 480 | navigator.handle(wheel(90, { preventDefault: () => prevented++ })) |
| 481 | time = 1100 |
| 482 | navigator.handle(wheel(90, { preventDefault: () => prevented++ })) |
| 483 | time = 1700 |
| 484 | navigator.handle(wheel(90, { preventDefault: () => prevented++ })) |
| 485 | |
| 486 | expect(navigator.offsets).toEqual([1]) |
| 487 | expect(prevented).toBe(3) |
| 488 | }) |
| 489 | |
| 490 | it('allows another page turn after the wheel gesture goes idle', () => { |
| 491 | let time = 1000 |
| 492 | const navigator = createWheelNavigatorForTest({ now: () => time }) |
| 493 | |
| 494 | navigator.handle(wheel(90)) |
| 495 | time = 1700 |
| 496 | navigator.unlockGesture() |
| 497 | navigator.handle(wheel(90)) |
| 498 | |
| 499 | expect(navigator.offsets).toEqual([1, 1]) |
| 500 | }) |
| 501 | |
| 502 | it('allows immediate reverse navigation even while the previous wheel direction is locked', () => { |
| 503 | let time = 1000 |
| 504 | const navigator = createWheelNavigatorForTest({ now: () => time }) |
| 505 | |
| 506 | navigator.handle(wheel(90)) |
| 507 | time = 1100 |
| 508 | navigator.handle(wheel(-90)) |
| 509 | |
| 510 | expect(navigator.offsets).toEqual([1, -1]) |
| 511 | }) |
| 512 | |
| 513 | it('does not keep the wheel locked when scrolling outward at a page boundary', () => { |
| 514 | let time = 1000 |
| 515 | const navigator = createWheelNavigatorForTest({ |
| 516 | now: () => time, |
| 517 | navigate: (offset) => offset < 0 |
| 518 | }) |
| 519 | |
| 520 | navigator.handle(wheel(90)) |
| 521 | time = 1100 |
| 522 | navigator.handle(wheel(-90)) |
| 523 | |
| 524 | expect(navigator.offsets).toEqual([-1]) |
| 525 | }) |
| 526 | |
| 527 | it('keeps zoom gestures, editable targets, and deck switcher wheel events untouched', () => { |
| 528 | const navigator = createWheelNavigatorForTest({ now: () => 1000 }) |
| 529 | |
| 530 | navigator.handle(wheel(100, { ctrlKey: true })) |
| 531 | navigator.handle(wheel(100, { metaKey: true })) |
| 532 | navigator.handle(wheel(100, { editableTarget: true })) |
| 533 | navigator.handle(wheel(100, { deckSwitcherTarget: true })) |
| 534 | |
| 535 | expect(navigator.offsets).toEqual([]) |
| 536 | }) |
| 537 | |
| 538 | it('normalizes line and page wheel deltas', () => { |
| 539 | expect(normalizeWheelDeltaForTest(wheel(6, { deltaMode: 1 }))).toBe(96) |
| 540 | expect(normalizeWheelDeltaForTest(wheel(-1, { deltaMode: 2 }))).toBe(-900) |
| 541 | expect(normalizeWheelDeltaForTest(wheel(10, { deltaX: -120 }))).toBe(-120) |
| 542 | }) |
| 543 | }) |
| 544 | |
| 545 | describe('Transition type and direction resolution', () => { |
| 546 | it('all 16 types normalize correctly', () => { |
| 547 | for (const type of indexTransitionTypes) { |
| 548 | expect(normalizeIndexTransitionType(type)).toBe(type) |
| 549 | } |
| 550 | expect(normalizeIndexTransitionType('sparkle')).toBe('fade') |
| 551 | }) |
| 552 | |
| 553 | it('resolves reverse direction for previous-page navigation', () => { |
| 554 | expect(transitionDirection(1, 2)).toBe(1) |
| 555 | expect(transitionDirection(2, 1)).toBe(-1) |
| 556 | expect(slideEntryValue('slide-left', -1)).toBe('-100%') |
| 557 | expect(slideEntryValue('slide-up', -1)).toBe('-100%') |
| 558 | expect(slideEntryValue('push', -1)).toBe('-100%') |
| 559 | expect(slideEntryValue('flip', -1)).toBe('-72deg') |
| 560 | expect(slideEntryValue('wipe', -1)).toBe('inset(0 100% 0 0)') |
| 561 | }) |
| 562 | }) |
| 563 | |
| 564 | describe('Transition duration clamping', () => { |
| 565 | it('clamps min 120ms', () => { |
| 566 | expect(clampTransitionDuration('fade', 50)).toBe(120) |
| 567 | expect(clampTransitionDuration('fade', 0)).toBe(120) |
| 568 | expect(clampTransitionDuration('fade', -100)).toBe(120) |
| 569 | }) |
| 570 | it('clamps max 1200ms', () => { |
| 571 | expect(clampTransitionDuration('fade', 2000)).toBe(1200) |
| 572 | }) |
| 573 | it('preserves valid values', () => { |
| 574 | expect(clampTransitionDuration('fade', 480)).toBe(480) |
| 575 | }) |
| 576 | it('keeps none at 0ms', () => { |
| 577 | expect(clampTransitionDuration('none', 480)).toBe(0) |
| 578 | }) |
| 579 | it('defaults to 600ms for undefined/NaN/Infinity', () => { |
| 580 | expect(clampTransitionDuration('fade', undefined)).toBe(600) |
| 581 | expect(clampTransitionDuration('fade', NaN)).toBe(600) |
| 582 | expect(clampTransitionDuration('fade', Infinity)).toBe(600) |
| 583 | }) |
| 584 | it('rounds to integer', () => { |
| 585 | expect(clampTransitionDuration('fade', 333.7)).toBe(334) |
| 586 | }) |
| 587 | }) |
| 588 | |
| 589 | describe('Reduced motion guard', () => { |
| 590 | it('uses no-op transition when reduced motion is preferred', () => { |
| 591 | const shouldAnimate = (reducedMotion: boolean, transitionType: string): boolean => |
| 592 | transitionType !== 'none' && !reducedMotion |
| 593 | |
| 594 | expect(shouldAnimate(true, 'fade')).toBe(false) |
| 595 | expect(shouldAnimate(false, 'none')).toBe(false) |
| 596 | expect(shouldAnimate(false, 'fade')).toBe(true) |
| 597 | }) |
| 598 | }) |
| 599 | |
| 600 | describe('hasDataAnim / hasCustomPageAnimation coexistence logic', () => { |
| 601 | function hasDataAnim(html: string): boolean { |
| 602 | return /\bdata-anim\b/i.test(html) |
| 603 | } |
| 604 | function hasCustomPageAnimation(html: string): boolean { |
| 605 | return ( |
| 606 | /(?:anime\s*\(|anime\.(?:createTimeline|timeline|animate|stagger)\s*\()/m.test(html) || |
| 607 | /PPT\.(?:animate|stagger|createTimeline)\s*\(/m.test(html) || |
| 608 | /data-(?:anime|animate)\b/i.test(html) |
| 609 | ) |
| 610 | } |
| 611 | function shouldIncludeDefaultMotion(html: string): boolean { |
| 612 | return hasDataAnim(html) || !hasCustomPageAnimation(html) |
| 613 | } |
| 614 | |
| 615 | it('includes default motion when only data-anim present', () => { |
| 616 | expect(shouldIncludeDefaultMotion('<div data-anim="fade-up">Hello</div>')).toBe(true) |
| 617 | }) |
| 618 | it('includes default motion when neither data-anim nor PPT.animate present', () => { |
| 619 | expect(shouldIncludeDefaultMotion('<div class="card">Plain</div>')).toBe(true) |
| 620 | }) |
| 621 | it('excludes default motion when only PPT.animate present (no data-anim)', () => { |
| 622 | expect(shouldIncludeDefaultMotion('<script>PPT.animate(".card", { opacity: [0,1] })</script>')).toBe(false) |
| 623 | }) |
| 624 | it('includes default motion when BOTH data-anim and PPT.animate coexist', () => { |
| 625 | const html = '<div data-anim="fade-up">A</div><script>PPT.animate(".b", {})</script>' |
| 626 | expect(shouldIncludeDefaultMotion(html)).toBe(true) |
| 627 | }) |
| 628 | it('data-anim is detected as separate from data-anime/data-animate', () => { |
| 629 | expect(hasDataAnim('<div data-anim="fade-up">A</div>')).toBe(true) |
| 630 | expect(hasDataAnim('<div data-anime="true">B</div>')).toBe(false) |
| 631 | expect(hasDataAnim('<div data-animate="true">C</div>')).toBe(false) |
| 632 | }) |
| 633 | }) |
| 634 | |
| 635 | describe('Transition config JSON round-trip', () => { |
| 636 | it('all 16 types survive JSON round-trip', () => { |
| 637 | for (const type of indexTransitionTypes) { |
| 638 | const json = JSON.stringify({ type, durationMs: type === 'none' ? 0 : 480 }) |
| 639 | const parsed = JSON.parse(json) |
| 640 | expect(parsed.type).toBe(type) |
| 641 | } |
| 642 | }) |
| 643 | }) |
| 644 |