| 1 | export const FREEZE_PAGE_FOR_EXPORT_SCRIPT = ` |
| 2 | (async () => { |
| 3 | const waitForMasterStylesheet = async () => { |
| 4 | const master = document.querySelector('link[data-ppt-master="1"]'); |
| 5 | const expectsMaster = new URLSearchParams(window.location.search).get('_pptMasterExpected') === '1'; |
| 6 | if (!master || !expectsMaster) return; |
| 7 | if (master.dataset.pptMasterExportReady === '1' && master.sheet) return; |
| 8 | const masterUrl = new URL(master.href, window.location.href); |
| 9 | masterUrl.searchParams.set('_pptMasterExport', String(Date.now())); |
| 10 | master.href = masterUrl.toString(); |
| 11 | await new Promise((resolve, reject) => { |
| 12 | let settled = false; |
| 13 | const finish = (callback) => { |
| 14 | if (settled) return; |
| 15 | settled = true; |
| 16 | clearTimeout(timeout); |
| 17 | master.removeEventListener('load', onLoad); |
| 18 | master.removeEventListener('error', onError); |
| 19 | callback(); |
| 20 | }; |
| 21 | const onLoad = () => finish(() => { |
| 22 | master.dataset.pptMasterExportReady = '1'; |
| 23 | resolve(true); |
| 24 | }); |
| 25 | const onError = () => finish(() => reject(new Error('母版样式表加载失败'))); |
| 26 | const timeout = setTimeout( |
| 27 | () => finish(() => reject(new Error('母版样式表加载超时'))), |
| 28 | 5000 |
| 29 | ); |
| 30 | master.addEventListener('load', onLoad, { once: true }); |
| 31 | master.addEventListener('error', onError, { once: true }); |
| 32 | }); |
| 33 | }; |
| 34 | |
| 35 | await waitForMasterStylesheet(); |
| 36 | if (window.PPT?.whenReadyForPrint) { |
| 37 | await window.PPT.whenReadyForPrint(5000); |
| 38 | } |
| 39 | const expectsMasterElements = |
| 40 | new URLSearchParams(window.location.search).get('_pptMasterElementsExpected') === '1'; |
| 41 | if (expectsMasterElements && !window.PPT?.assertMasterElementsReady) { |
| 42 | throw new Error('母版全局元素运行时不可用'); |
| 43 | } |
| 44 | if (window.PPT?.assertMasterElementsReady) { |
| 45 | await window.PPT.assertMasterElementsReady(5000); |
| 46 | } |
| 47 | const root = |
| 48 | document.querySelector('.ppt-page-root[data-ppt-guard-root="1"]') || |
| 49 | document.querySelector('.ppt-page-root') || |
| 50 | document.body; |
| 51 | const existing = document.getElementById('ohmyppt-export-freeze-page'); |
| 52 | if (existing) existing.remove(); |
| 53 | const style = document.createElement('style'); |
| 54 | style.id = 'ohmyppt-export-freeze-page'; |
| 55 | style.textContent = [ |
| 56 | 'html { scroll-behavior: auto !important; }', |
| 57 | '*, *::before, *::after { animation: none !important; transition: none !important; animation-delay: 0s !important; animation-duration: 0s !important; animation-play-state: paused !important; transition-delay: 0s !important; transition-duration: 0s !important; }', |
| 58 | '.opacity-0, [data-anime], [data-animate], [data-anim] { opacity: 1 !important; transform: none !important; }' |
| 59 | ].join('\\n'); |
| 60 | document.head.appendChild(style); |
| 61 | |
| 62 | try { |
| 63 | document.getAnimations?.().forEach((animation) => { |
| 64 | try { |
| 65 | animation.finish(); |
| 66 | } catch (_err) { |
| 67 | try { |
| 68 | animation.cancel(); |
| 69 | } catch (_cancelErr) {} |
| 70 | } |
| 71 | }); |
| 72 | } catch (_err) {} |
| 73 | |
| 74 | const waitFrames = (frames) => |
| 75 | new Promise((resolve) => { |
| 76 | let remaining = Math.max(1, Number(frames) || 1); |
| 77 | const next = () => { |
| 78 | remaining -= 1; |
| 79 | if (remaining <= 0) { |
| 80 | resolve(true); |
| 81 | return; |
| 82 | } |
| 83 | requestAnimationFrame(next); |
| 84 | }; |
| 85 | requestAnimationFrame(next); |
| 86 | }); |
| 87 | |
| 88 | const collectChartInstances = () => { |
| 89 | const charts = new Set(); |
| 90 | const ChartCtor = window.Chart; |
| 91 | try { |
| 92 | if (window.__PPT_CHART_REGISTRY__ instanceof Map) { |
| 93 | window.__PPT_CHART_REGISTRY__.forEach((chart) => { |
| 94 | if (chart) charts.add(chart); |
| 95 | }); |
| 96 | } |
| 97 | } catch (_err) {} |
| 98 | try { |
| 99 | if (ChartCtor?.instances) { |
| 100 | const instances = Array.isArray(ChartCtor.instances) |
| 101 | ? ChartCtor.instances |
| 102 | : Object.values(ChartCtor.instances); |
| 103 | instances.forEach((chart) => { |
| 104 | if (chart) charts.add(chart); |
| 105 | }); |
| 106 | } |
| 107 | } catch (_err) {} |
| 108 | try { |
| 109 | root.querySelectorAll('canvas').forEach((canvas) => { |
| 110 | let chart = null; |
| 111 | try { |
| 112 | chart = ChartCtor?.getChart?.(canvas) || null; |
| 113 | } catch (_err) {} |
| 114 | if (chart) charts.add(chart); |
| 115 | }); |
| 116 | } catch (_err) {} |
| 117 | return Array.from(charts); |
| 118 | }; |
| 119 | |
| 120 | const disableChartAnimations = () => { |
| 121 | const ChartCtor = window.Chart; |
| 122 | try { |
| 123 | if (ChartCtor?.defaults) { |
| 124 | ChartCtor.defaults.animation = false; |
| 125 | ChartCtor.defaults.animations = false; |
| 126 | if (ChartCtor.defaults.transitions) { |
| 127 | Object.values(ChartCtor.defaults.transitions).forEach((transition) => { |
| 128 | if (transition?.animation) transition.animation.duration = 0; |
| 129 | if (transition?.animations) { |
| 130 | Object.values(transition.animations).forEach((animation) => { |
| 131 | if (animation && typeof animation === 'object') animation.duration = 0; |
| 132 | }); |
| 133 | } |
| 134 | }); |
| 135 | } |
| 136 | } |
| 137 | } catch (_err) {} |
| 138 | }; |
| 139 | |
| 140 | const fingerprintCanvases = () => { |
| 141 | const canvases = Array.from(root.querySelectorAll('canvas')); |
| 142 | if (canvases.length === 0) return ''; |
| 143 | return canvases |
| 144 | .map((canvas) => { |
| 145 | const width = canvas.width || 0; |
| 146 | const height = canvas.height || 0; |
| 147 | if (!width || !height) return 'empty'; |
| 148 | let ctx = null; |
| 149 | try { |
| 150 | ctx = canvas.getContext('2d', { willReadFrequently: true }) || canvas.getContext('2d'); |
| 151 | } catch (_err) { |
| 152 | return 'unreadable'; |
| 153 | } |
| 154 | if (!ctx) return 'noctx'; |
| 155 | const columns = Math.min(8, Math.max(2, Math.floor(width / 80))); |
| 156 | const rows = Math.min(6, Math.max(2, Math.floor(height / 60))); |
| 157 | let hash = 2166136261; |
| 158 | try { |
| 159 | for (let yIndex = 0; yIndex < rows; yIndex += 1) { |
| 160 | const y = Math.min(height - 1, Math.floor(((yIndex + 0.5) * height) / rows)); |
| 161 | for (let xIndex = 0; xIndex < columns; xIndex += 1) { |
| 162 | const x = Math.min(width - 1, Math.floor(((xIndex + 0.5) * width) / columns)); |
| 163 | const data = ctx.getImageData(x, y, 1, 1).data; |
| 164 | for (let i = 0; i < 4; i += 1) { |
| 165 | hash ^= data[i] || 0; |
| 166 | hash = Math.imul(hash, 16777619); |
| 167 | } |
| 168 | } |
| 169 | } |
| 170 | return String(width) + 'x' + String(height) + ':' + String(hash >>> 0); |
| 171 | } catch (_err) { |
| 172 | return 'tainted'; |
| 173 | } |
| 174 | }) |
| 175 | .join('|'); |
| 176 | }; |
| 177 | |
| 178 | const waitForCanvasStability = async () => { |
| 179 | if (!root.querySelector('canvas')) return; |
| 180 | let previous = ''; |
| 181 | let stableFrames = 0; |
| 182 | const deadline = Date.now() + 1200; |
| 183 | while (Date.now() < deadline) { |
| 184 | await waitFrames(2); |
| 185 | const next = fingerprintCanvases(); |
| 186 | if (next && next === previous) { |
| 187 | stableFrames += 1; |
| 188 | if (stableFrames >= 2) return; |
| 189 | } else { |
| 190 | stableFrames = 0; |
| 191 | previous = next; |
| 192 | } |
| 193 | } |
| 194 | }; |
| 195 | |
| 196 | const stabilizeCharts = async () => { |
| 197 | disableChartAnimations(); |
| 198 | const applyFinalChartState = () => { |
| 199 | collectChartInstances().forEach((chart) => { |
| 200 | try { |
| 201 | if (chart?.options) { |
| 202 | chart.options.animation = false; |
| 203 | chart.options.animations = false; |
| 204 | chart.options.responsive = false; |
| 205 | chart.options.maintainAspectRatio = false; |
| 206 | } |
| 207 | } catch (_err) {} |
| 208 | try { |
| 209 | if (typeof chart?.stop === 'function') chart.stop(); |
| 210 | } catch (_err) {} |
| 211 | try { |
| 212 | if (typeof chart?.resize === 'function') chart.resize(); |
| 213 | } catch (_err) {} |
| 214 | try { |
| 215 | if (typeof chart?.update === 'function') chart.update('none'); |
| 216 | } catch (_err) {} |
| 217 | try { |
| 218 | if (typeof chart?.render === 'function') chart.render(); |
| 219 | else if (typeof chart?.draw === 'function') chart.draw(); |
| 220 | } catch (_err) {} |
| 221 | }); |
| 222 | }; |
| 223 | |
| 224 | applyFinalChartState(); |
| 225 | await waitFrames(2); |
| 226 | applyFinalChartState(); |
| 227 | await waitForCanvasStability(); |
| 228 | }; |
| 229 | |
| 230 | await stabilizeCharts(); |
| 231 | |
| 232 | const shouldForceVisibleForMotion = (node) => { |
| 233 | if (!node?.matches?.('.opacity-0, [data-anime], [data-animate], [data-anim]')) return false; |
| 234 | return Number(getComputedStyle(node).opacity || '1') <= 0.04; |
| 235 | }; |
| 236 | |
| 237 | const motionTargets = root.querySelectorAll( |
| 238 | '.opacity-0, [data-anime], [data-animate], h1, h2, h3, p, li, .card, .panel, .text-section, .diagram-section, .timeline-node, section, section > *' |
| 239 | ); |
| 240 | motionTargets.forEach((element) => { |
| 241 | const node = element; |
| 242 | node.style.transition = 'none'; |
| 243 | node.style.animation = 'none'; |
| 244 | if (shouldForceVisibleForMotion(node)) { |
| 245 | node.setAttribute('data-pptx-animated', '1'); |
| 246 | node.style.opacity = '1'; |
| 247 | } |
| 248 | if (/translateY\\([^)]*\\)/.test(node.style.transform || '')) { |
| 249 | node.setAttribute('data-pptx-animated', '1'); |
| 250 | node.style.transform = 'none'; |
| 251 | } |
| 252 | }); |
| 253 | |
| 254 | root.querySelectorAll('*').forEach((element) => { |
| 255 | const node = element; |
| 256 | const computed = getComputedStyle(node); |
| 257 | if (computed.display === 'none' || computed.visibility === 'hidden') return; |
| 258 | if (shouldForceVisibleForMotion(node)) { |
| 259 | node.setAttribute('data-pptx-animated', '1'); |
| 260 | node.style.opacity = '1'; |
| 261 | } |
| 262 | if (/translate(?:3d|X|Y)?\\(/.test(node.style.transform || '')) { |
| 263 | node.setAttribute('data-pptx-animated', '1'); |
| 264 | node.style.transform = 'none'; |
| 265 | } |
| 266 | }); |
| 267 | |
| 268 | if (document.fonts?.ready) { |
| 269 | try { |
| 270 | await document.fonts.ready; |
| 271 | } catch (_err) {} |
| 272 | } |
| 273 | return true; |
| 274 | })() |
| 275 | ` |
| 276 | |
| 277 | export const FREEZE_PAGE_FOR_PPTX_SCRIPT = FREEZE_PAGE_FOR_EXPORT_SCRIPT |
| 278 | |
| 279 | /** |
| 280 | * Reset ppt-page-fit-scope transform to scale(1) for full-resolution capture. |
| 281 | * Must be executed AFTER text/shape extraction (which needs the scaled coordinates) |
| 282 | * but BEFORE screen capture. |
| 283 | */ |
| 284 | export const RESET_SCALE_FOR_PPTX_CAPTURE_SCRIPT = ` |
| 285 | (async () => { |
| 286 | const root = |
| 287 | document.querySelector('.ppt-page-root[data-ppt-guard-root="1"]') || |
| 288 | document.querySelector('.ppt-page-root') || |
| 289 | document.body; |
| 290 | const scope = root.querySelector(':scope > .ppt-page-fit-scope'); |
| 291 | if (scope) scope.style.transform = 'scale(1)'; |
| 292 | void document.body.offsetHeight; |
| 293 | await new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))); |
| 294 | return true; |
| 295 | })() |
| 296 | ` |
| 297 | |
| 298 | export const HIDE_TEXT_FOR_PPTX_BACKGROUND_SCRIPT = ` |
| 299 | (async () => { |
| 300 | const existing = document.getElementById('ohmyppt-pptx-hide-text'); |
| 301 | if (existing) existing.remove(); |
| 302 | const isVisibleColor = (value) => { |
| 303 | const color = String(value || '').trim().toLowerCase(); |
| 304 | return Boolean(color && color !== 'transparent' && !/^rgba?\\([^)]*,\\s*0\\s*\\)$/.test(color)); |
| 305 | }; |
| 306 | const resolveVisibleTextColor = (element) => { |
| 307 | let current = element; |
| 308 | while (current && current.nodeType === 1) { |
| 309 | const color = getComputedStyle(current).color; |
| 310 | if (isVisibleColor(color)) return color; |
| 311 | current = current.parentElement; |
| 312 | } |
| 313 | return '#111827'; |
| 314 | }; |
| 315 | const style = document.createElement('style'); |
| 316 | style.id = 'ohmyppt-pptx-hide-text'; |
| 317 | style.textContent = [ |
| 318 | 'body :not(.katex):not(.katex *):not(canvas) { -webkit-text-fill-color: transparent !important; -webkit-text-stroke-color: transparent !important; text-shadow: none !important; text-decoration-color: transparent !important; caret-color: transparent !important; }', |
| 319 | 'body :not(.katex):not(.katex *)::before, body :not(.katex):not(.katex *)::after { -webkit-text-fill-color: transparent !important; -webkit-text-stroke-color: transparent !important; text-shadow: none !important; text-decoration-color: transparent !important; }', |
| 320 | '.katex, .katex * { -webkit-text-fill-color: currentColor !important; text-shadow: none !important; }', |
| 321 | 'svg text, svg tspan { fill: transparent !important; stroke: transparent !important; }', |
| 322 | 'input, textarea { color: transparent !important; -webkit-text-fill-color: transparent !important; }' |
| 323 | ].join('\\n'); |
| 324 | document.head.appendChild(style); |
| 325 | document.querySelectorAll('.katex').forEach((element) => { |
| 326 | const node = element; |
| 327 | const color = resolveVisibleTextColor(node); |
| 328 | node.style.color = color; |
| 329 | node.style.webkitTextFillColor = color; |
| 330 | node.style.fontFamily = 'KaTeX_Main, "Times New Roman", "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", sans-serif'; |
| 331 | }); |
| 332 | const hideTextPaint = (node) => { |
| 333 | node.style.setProperty('-webkit-text-fill-color', 'transparent', 'important'); |
| 334 | node.style.setProperty('-webkit-text-stroke-color', 'transparent', 'important'); |
| 335 | node.style.setProperty('text-shadow', 'none', 'important'); |
| 336 | node.style.setProperty('text-decoration-color', 'transparent', 'important'); |
| 337 | node.style.setProperty('caret-color', 'transparent', 'important'); |
| 338 | }; |
| 339 | const hasOwnTextNode = (element) => |
| 340 | Array.from(element.childNodes || []).some((node) => node.nodeType === Node.TEXT_NODE && String(node.textContent || '').trim()); |
| 341 | document.querySelectorAll('body *').forEach((element) => { |
| 342 | if (element.closest('.katex, .katex-mathml, script, style, noscript, canvas')) return; |
| 343 | if (hasOwnTextNode(element)) hideTextPaint(element); |
| 344 | }); |
| 345 | document.querySelectorAll('svg text, svg tspan').forEach((element) => { |
| 346 | element.style.setProperty('fill', 'transparent', 'important'); |
| 347 | element.style.setProperty('stroke', 'transparent', 'important'); |
| 348 | }); |
| 349 | void document.body.offsetHeight; |
| 350 | if (document.fonts?.ready) { |
| 351 | try { |
| 352 | await document.fonts.ready; |
| 353 | } catch (_err) {} |
| 354 | } |
| 355 | void document.body.offsetHeight; |
| 356 | await new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))); |
| 357 | return true; |
| 358 | })() |
| 359 | ` |
| 360 | |
| 361 | export const buildMarkPptxExtractedTextForBackgroundScript = ( |
| 362 | texts: Array<{ x: number; y: number; w: number; h: number }>, |
| 363 | slideSize: { widthIn: number; heightIn: number } = { widthIn: 13.333, heightIn: 7.5 } |
| 364 | ): string => { |
| 365 | const boxes = texts |
| 366 | .filter( |
| 367 | (text) => |
| 368 | Number.isFinite(text.x) && |
| 369 | Number.isFinite(text.y) && |
| 370 | Number.isFinite(text.w) && |
| 371 | Number.isFinite(text.h) && |
| 372 | text.w > 0.02 && |
| 373 | text.h > 0.02 |
| 374 | ) |
| 375 | .map((text) => ({ x: text.x, y: text.y, w: text.w, h: text.h })) |
| 376 | |
| 377 | return ` |
| 378 | (() => { |
| 379 | const root = |
| 380 | document.querySelector('.ppt-page-root[data-ppt-guard-root="1"]') || |
| 381 | document.querySelector('.ppt-page-root') || |
| 382 | document.body; |
| 383 | // This script is rerun for background-capture retries. Remove stale matches before |
| 384 | // evaluating the latest extraction result so a newly unsupported text node stays rasterized. |
| 385 | root.querySelectorAll('[data-pptx-background-text-match]').forEach((element) => { |
| 386 | element.removeAttribute('data-pptx-background-text-match'); |
| 387 | }); |
| 388 | const textBoxes = ${JSON.stringify(boxes)}; |
| 389 | if (!textBoxes.length) return 0; |
| 390 | const rootRect = root.getBoundingClientRect(); |
| 391 | if (!rootRect.width || !rootRect.height) return 0; |
| 392 | const slideWidth = ${JSON.stringify(slideSize.widthIn)}; |
| 393 | const slideHeight = ${JSON.stringify(slideSize.heightIn)}; |
| 394 | const toClientBox = (box) => ({ |
| 395 | left: rootRect.left + (box.x / slideWidth) * rootRect.width, |
| 396 | top: rootRect.top + (box.y / slideHeight) * rootRect.height, |
| 397 | width: (box.w / slideWidth) * rootRect.width, |
| 398 | height: (box.h / slideHeight) * rootRect.height |
| 399 | }); |
| 400 | const boxesInClientSpace = textBoxes.map(toClientBox); |
| 401 | const overlapsExtractedText = (rect) => { |
| 402 | if (rect.width < 1 || rect.height < 1) return false; |
| 403 | const rectArea = rect.width * rect.height; |
| 404 | return boxesInClientSpace.some((box) => { |
| 405 | const overlapWidth = Math.max(0, Math.min(rect.right, box.left + box.width) - Math.max(rect.left, box.left)); |
| 406 | const overlapHeight = Math.max(0, Math.min(rect.bottom, box.top + box.height) - Math.max(rect.top, box.top)); |
| 407 | const overlap = overlapWidth * overlapHeight; |
| 408 | // A native PPT box can be intentionally wider than its painted glyphs, but it must |
| 409 | // still cover almost all of this DOM text fragment. Partial or center-only overlap |
| 410 | // leaves the fragment in the raster background as a conservative fallback. |
| 411 | return overlap / rectArea >= 0.85; |
| 412 | }); |
| 413 | }; |
| 414 | let marked = 0; |
| 415 | root.querySelectorAll('*').forEach((element) => { |
| 416 | if (element.closest('script, style, noscript, svg, canvas, video, iframe, .katex, .katex-mathml')) return; |
| 417 | const walker = document.createTreeWalker(element, NodeFilter.SHOW_TEXT, { |
| 418 | acceptNode: (node) => |
| 419 | String(node.textContent || '').trim() ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_REJECT |
| 420 | }); |
| 421 | const textNodes = []; |
| 422 | while (walker.nextNode()) textNodes.push(walker.currentNode); |
| 423 | if (!textNodes.length) return; |
| 424 | const textRects = textNodes.flatMap((node) => { |
| 425 | const range = document.createRange(); |
| 426 | range.selectNodeContents(node); |
| 427 | return Array.from(range.getClientRects()); |
| 428 | }); |
| 429 | if (textRects.length && textRects.every(overlapsExtractedText)) { |
| 430 | // Mark the container only when every descendant text fragment maps to a |
| 431 | // native PPT text box. This handles mixed content such as "$528<span>亿</span>" |
| 432 | // without hiding a neighboring fallback-only child through inheritance. |
| 433 | element.setAttribute('data-pptx-background-text-match', '1'); |
| 434 | marked += 1; |
| 435 | } |
| 436 | }); |
| 437 | return marked; |
| 438 | })() |
| 439 | ` |
| 440 | } |
| 441 | |
| 442 | // Background capture for PPTX keeps every visual that cannot be represented as |
| 443 | // a native PPTX object. Only successfully extracted objects are removed. This |
| 444 | // avoids both text ghosts on animated nodes and missing complex CSS/DOM visuals. |
| 445 | export const HIDE_FOR_PPTX_BACKGROUND_SCRIPT = ` |
| 446 | (async () => { |
| 447 | // Helper: same rgbToHex as main extraction script |
| 448 | const rgbToHex = (value) => { |
| 449 | const source = String(value || '').trim(); |
| 450 | if (!source || source === 'transparent') return ''; |
| 451 | if (source.startsWith('#')) { |
| 452 | const raw = source.slice(1).toUpperCase(); |
| 453 | return raw.length === 3 ? raw.split('').map((part) => part + part).join('') : raw; |
| 454 | } |
| 455 | const match = source.match(/rgba?\\(\\s*(\\d+(?:\\.\\d+)?)(?:\\s*,\\s*|\\s+)(\\d+(?:\\.\\d+)?)(?:\\s*,\\s*|\\s+)(\\d+(?:\\.\\d+)?)(?:\\s*(?:,|\\/)\\s*(\\d+(?:\\.\\d+)?%?))?/i); |
| 456 | if (!match) return ''; |
| 457 | const alpha = match[4] === undefined |
| 458 | ? 1 |
| 459 | : String(match[4]).endsWith('%') |
| 460 | ? Number.parseFloat(match[4]) / 100 |
| 461 | : Number(match[4]); |
| 462 | if (alpha <= 0.02) return ''; |
| 463 | return [match[1], match[2], match[3]] |
| 464 | .map((part) => Math.max(0, Math.min(255, Math.round(Number(part) || 0))).toString(16).padStart(2, '0')) |
| 465 | .join('') |
| 466 | .toUpperCase(); |
| 467 | }; |
| 468 | |
| 469 | // 1. Mark additional decorative elements (blur blobs, glass-morphism, very low Tailwind opacity) |
| 470 | const root = document.querySelector('.ppt-page-root') || document.body; |
| 471 | root.querySelectorAll('*').forEach((el) => { |
| 472 | if (el.hasAttribute('data-pptx-animated')) return; |
| 473 | const style = getComputedStyle(el); |
| 474 | const hasBlur = /blur/i.test(style.filter || '') || /blur/i.test(style.backdropFilter || ''); |
| 475 | const cls = el.className && typeof el.className === 'string' ? el.className : ''; |
| 476 | const hasDecoClass = /\\b(opacity-[012]0|opacity-[12]5)\\b/.test(cls) || /\\bblur-(sm|md|lg|xl|2xl|3xl)\\b/.test(cls); |
| 477 | if (hasBlur || hasDecoClass) { |
| 478 | el.setAttribute('data-pptx-animated', '1'); |
| 479 | } |
| 480 | }); |
| 481 | |
| 482 | // 1b. Mark full-page background elements as decorative (preserve their background during capture) |
| 483 | const pageArea = root.getBoundingClientRect().width * root.getBoundingClientRect().height; |
| 484 | root.querySelectorAll(':scope > div, :scope > section, :scope > main').forEach((el) => { |
| 485 | if (el.hasAttribute('data-pptx-animated')) return; |
| 486 | const style = getComputedStyle(el); |
| 487 | const fill = rgbToHex(style.backgroundColor); |
| 488 | if (!fill) return; |
| 489 | const rect = el.getBoundingClientRect(); |
| 490 | if (rect.width * rect.height >= pageArea * 0.5) { |
| 491 | el.setAttribute('data-pptx-animated', '1'); |
| 492 | } |
| 493 | }); |
| 494 | |
| 495 | // Large edge-anchored fills are structural backgrounds. Keep them in the |
| 496 | // screenshot base instead of relying on a native shape whose z-order can |
| 497 | // cover the slide or be accidentally targeted by a text animation. |
| 498 | root.querySelectorAll('[data-pptx-extracted-shape]').forEach((el) => { |
| 499 | const rect = el.getBoundingClientRect(); |
| 500 | const rootRect = root.getBoundingClientRect(); |
| 501 | const pageArea = rootRect.width * rootRect.height; |
| 502 | if (!pageArea || rect.width * rect.height < pageArea * 0.2) return; |
| 503 | const horizontalTolerance = 2; |
| 504 | const verticalTolerance = 2; |
| 505 | const spansWidth = rect.width >= rootRect.width - horizontalTolerance; |
| 506 | const spansHeight = rect.height >= rootRect.height - verticalTolerance; |
| 507 | if (!spansWidth && !spansHeight) return; |
| 508 | const touchesHorizontalEdge = rect.left <= rootRect.left + horizontalTolerance || rect.right >= rootRect.right - horizontalTolerance; |
| 509 | const touchesVerticalEdge = rect.top <= rootRect.top + verticalTolerance || rect.bottom >= rootRect.bottom - verticalTolerance; |
| 510 | if (touchesHorizontalEdge && touchesVerticalEdge) { |
| 511 | el.setAttribute('data-pptx-static-background', '1'); |
| 512 | } |
| 513 | }); |
| 514 | |
| 515 | // 2. Remove previous style |
| 516 | const existing = document.getElementById('ohmyppt-pptx-hide-elements'); |
| 517 | if (existing) existing.remove(); |
| 518 | |
| 519 | // Pseudo-elements are not part of the DOM text extraction. Keep their own |
| 520 | // text paint while only confirmed extracted DOM text is made transparent below. |
| 521 | root.querySelectorAll('*').forEach((el) => { |
| 522 | ['before', 'after'].forEach((kind) => { |
| 523 | const pseudo = getComputedStyle(el, '::' + kind); |
| 524 | const content = String(pseudo.content || '').trim(); |
| 525 | if (!content || content === 'none' || content === 'normal') return; |
| 526 | el.setAttribute('data-pptx-has-' + kind, '1'); |
| 527 | el.style.setProperty('--pptx-' + kind + '-color', pseudo.color || 'transparent'); |
| 528 | el.style.setProperty('--pptx-' + kind + '-text-fill', pseudo.webkitTextFillColor || pseudo.color || 'transparent'); |
| 529 | el.style.setProperty('--pptx-' + kind + '-text-stroke', pseudo.webkitTextStrokeColor || 'transparent'); |
| 530 | el.style.setProperty('--pptx-' + kind + '-text-shadow', pseudo.textShadow || 'none'); |
| 531 | el.style.setProperty('--pptx-' + kind + '-text-decoration', pseudo.textDecorationColor || 'transparent'); |
| 532 | }); |
| 533 | }); |
| 534 | |
| 535 | // 3. CSS: keep any visual that was not confirmed extracted in the raster |
| 536 | // background. This is the fallback for complex or capped-out source content. |
| 537 | const style = document.createElement('style'); |
| 538 | style.id = 'ohmyppt-pptx-hide-elements'; |
| 539 | style.textContent = [ |
| 540 | // Precisely hide extracted shapes (background/border) and images (visibility) |
| 541 | '[data-pptx-extracted-shape]:not([data-pptx-static-background]) { background-color: transparent !important; border-color: transparent !important; }', |
| 542 | '[data-pptx-extracted-image] { opacity: 0 !important; visibility: hidden !important; }', |
| 543 | // Keep unmapped images, shadows and complex containers in the raster background. |
| 544 | // Their extraction can fail because of data limits, filters or cross-origin assets. |
| 545 | // Only hide text whose source element was confirmed extracted. Hiding all DOM |
| 546 | // text leaves no fallback when a text-box limit or complex layout skips it. |
| 547 | '[data-pptx-extracted-text], [data-pptx-extracted-text] *, [data-pptx-background-text-match] { color: transparent !important; -webkit-text-fill-color: transparent !important; -webkit-text-stroke-color: transparent !important; text-shadow: none !important; text-decoration-color: transparent !important; caret-color: transparent !important; }', |
| 548 | '[data-pptx-has-before]::before { color: var(--pptx-before-color) !important; -webkit-text-fill-color: var(--pptx-before-text-fill) !important; -webkit-text-stroke-color: var(--pptx-before-text-stroke) !important; text-shadow: var(--pptx-before-text-shadow) !important; text-decoration-color: var(--pptx-before-text-decoration) !important; }', |
| 549 | '[data-pptx-has-after]::after { color: var(--pptx-after-color) !important; -webkit-text-fill-color: var(--pptx-after-text-fill) !important; -webkit-text-stroke-color: var(--pptx-after-text-stroke) !important; text-shadow: var(--pptx-after-text-shadow) !important; text-decoration-color: var(--pptx-after-text-decoration) !important; }', |
| 550 | // Hide katex elements (captured as separate images before background capture) |
| 551 | '.katex { opacity: 0 !important; visibility: hidden !important; }', |
| 552 | // Hide formula blocks (captured as block-level overlay images) |
| 553 | '[data-pptx-formula-block] { opacity: 0 !important; visibility: hidden !important; }', |
| 554 | // An SVG that could not be rasterized stays visible in the background. |
| 555 | 'svg[data-pptx-extracted-image] text, svg[data-pptx-extracted-image] tspan { fill: transparent !important; stroke: transparent !important; }', |
| 556 | // Hide input/textarea text |
| 557 | 'input, textarea { color: transparent !important; -webkit-text-fill-color: transparent !important; }' |
| 558 | ].join('\\n'); |
| 559 | document.head.appendChild(style); |
| 560 | void document.body.offsetHeight; |
| 561 | await new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))); |
| 562 | return true; |
| 563 | })() |
| 564 | ` |
| 565 | |
| 566 | export const RESTORE_PPTX_PAGE_AFTER_BACKGROUND_CAPTURE_SCRIPT = ` |
| 567 | (async () => { |
| 568 | document.getElementById('ohmyppt-pptx-hide-elements')?.remove(); |
| 569 | void document.body.offsetHeight; |
| 570 | await new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))); |
| 571 | return true; |
| 572 | })() |
| 573 | ` |
| 574 | |
| 575 | export const HIDE_ELEMENTS_FOR_PPTX_BACKGROUND_SCRIPT = ` |
| 576 | (async () => { |
| 577 | let existing = document.getElementById('ohmyppt-pptx-hide-elements'); |
| 578 | if (existing) existing.remove(); |
| 579 | const style = document.createElement('style'); |
| 580 | style.id = 'ohmyppt-pptx-hide-elements'; |
| 581 | style.textContent = [ |
| 582 | 'img, canvas { opacity: 0 !important; visibility: hidden !important; }', |
| 583 | 'svg { opacity: 0 !important; visibility: hidden !important; }', |
| 584 | 'section, main, article, header, footer, aside, div, figure, figcaption, table, td, th { background-color: transparent !important; border-color: transparent !important; }', |
| 585 | 'body :not(canvas) { -webkit-text-fill-color: transparent !important; -webkit-text-stroke-color: transparent !important; text-shadow: none !important; text-decoration-color: transparent !important; caret-color: transparent !important; }', |
| 586 | 'body::before, body::after { -webkit-text-fill-color: transparent !important; -webkit-text-stroke-color: transparent !important; text-shadow: none !important; text-decoration-color: transparent !important; }', |
| 587 | '.katex { opacity: 0 !important; visibility: hidden !important; }', |
| 588 | 'svg text, svg tspan { fill: transparent !important; stroke: transparent !important; }', |
| 589 | 'input, textarea { color: transparent !important; -webkit-text-fill-color: transparent !important; }' |
| 590 | ].join('\\n'); |
| 591 | document.head.appendChild(style); |
| 592 | void document.body.offsetHeight; |
| 593 | await new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))); |
| 594 | return true; |
| 595 | })() |
| 596 | ` |
| 597 | |
| 598 | export const MARK_KATEX_BLOCKS_SCRIPT = ` |
| 599 | (() => { |
| 600 | const root = document.querySelector('.ppt-page-root') || document.body; |
| 601 | root.querySelectorAll('[data-pptx-formula-block]').forEach((block) => { |
| 602 | block.removeAttribute('data-pptx-formula-block'); |
| 603 | }); |
| 604 | const blockSelector = [ |
| 605 | 'p', |
| 606 | 'div', |
| 607 | 'section', |
| 608 | 'article', |
| 609 | 'main', |
| 610 | 'aside', |
| 611 | 'header', |
| 612 | 'footer', |
| 613 | 'figure', |
| 614 | 'figcaption', |
| 615 | 'li', |
| 616 | 'ul', |
| 617 | 'ol', |
| 618 | 'dl', |
| 619 | 'dt', |
| 620 | 'dd', |
| 621 | 'blockquote', |
| 622 | 'pre', |
| 623 | 'h1', |
| 624 | 'h2', |
| 625 | 'h3', |
| 626 | 'h4', |
| 627 | 'h5', |
| 628 | 'h6', |
| 629 | 'td', |
| 630 | 'th' |
| 631 | ].join(','); |
| 632 | const BLOCK_TAGS = new Set(blockSelector.split(',').map((tag) => tag.toUpperCase())); |
| 633 | const allBlocks = root.querySelectorAll(blockSelector); |
| 634 | let count = 0; |
| 635 | for (const block of allBlocks) { |
| 636 | // Must contain katex |
| 637 | if (!block.querySelector('.katex')) continue; |
| 638 | // Check if any direct child block also contains katex — if so, this is a |
| 639 | // parent container and the children are the actual leaf targets. |
| 640 | let childBlockHasKatex = false; |
| 641 | for (const child of block.children) { |
| 642 | if (!BLOCK_TAGS.has(child.tagName)) continue; |
| 643 | if (child.querySelector('.katex')) { childBlockHasKatex = true; break; } |
| 644 | } |
| 645 | if (childBlockHasKatex) continue; |
| 646 | block.setAttribute('data-pptx-formula-block', '1'); |
| 647 | count++; |
| 648 | } |
| 649 | return count; |
| 650 | })() |
| 651 | ` |
| 652 | |
| 653 | export const COLLECT_PPTX_ANIMATION_TRACES_SCRIPT = ` |
| 654 | (() => { |
| 655 | const root = document.querySelector('.ppt-page-root') || document.body; |
| 656 | const pageRect = root.getBoundingClientRect(); |
| 657 | // These are native PowerPoint effects with a stable final state. Path motion is |
| 658 | // intentionally excluded: an HTML path's final CSS transform cannot be |
| 659 | // faithfully reconstructed from the static exported geometry. |
| 660 | const safeNativeTypes = new Set([ |
| 661 | 'fade', |
| 662 | 'fade-up', |
| 663 | 'fade-down', |
| 664 | 'fade-left', |
| 665 | 'fade-right', |
| 666 | 'scale-in', |
| 667 | 'slide-up', |
| 668 | 'slide-down', |
| 669 | 'slide-left', |
| 670 | 'slide-right', |
| 671 | 'fly-in', |
| 672 | 'wipe', |
| 673 | 'zoom-in', |
| 674 | 'spin-in', |
| 675 | 'grow-shrink-soft', |
| 676 | 'grow-shrink', |
| 677 | 'grow-shrink-strong', |
| 678 | 'pulse-soft', |
| 679 | 'pulse', |
| 680 | 'pulse-strong', |
| 681 | 'exit-fade', |
| 682 | 'exit-scale', |
| 683 | 'exit-zoom', |
| 684 | 'exit-wipe', |
| 685 | 'exit-fly' |
| 686 | ]); |
| 687 | const supportedTriggers = new Set(['load', 'click', 'with', 'after']); |
| 688 | const supportedSequences = new Set(['with', 'after']); |
| 689 | const staggerCounters = {}; |
| 690 | let lastSequenceStart = 0; |
| 691 | let lastSequenceEnd = 0; |
| 692 | const traces = []; |
| 693 | const normalizeType = (value) => { |
| 694 | const type = String(value || 'fade-up').trim().toLowerCase(); |
| 695 | if (type === 'none') return 'none'; |
| 696 | if (type === 'fly' || type === 'flyin') return 'fly-in'; |
| 697 | if (type === 'zoom' || type === 'zoomin') return 'zoom-in'; |
| 698 | if (type === 'spin' || type === 'spinin') return 'spin-in'; |
| 699 | if (type === 'growsoft' || type === 'growshrinksoft') return 'grow-shrink-soft'; |
| 700 | if (type === 'grow' || type === 'growshrink') return 'grow-shrink'; |
| 701 | if (type === 'growstrong' || type === 'growshrinkstrong') return 'grow-shrink-strong'; |
| 702 | if (type === 'emphasis') return 'pulse'; |
| 703 | if (type === 'pulsesoft') return 'pulse-soft'; |
| 704 | if (type === 'pulsestrong') return 'pulse-strong'; |
| 705 | if (type === 'exitscale') return 'exit-scale'; |
| 706 | if (type === 'exitzoom') return 'exit-zoom'; |
| 707 | return safeNativeTypes.has(type) || type === 'path' ? type : 'fade-up'; |
| 708 | }; |
| 709 | const normalizeTrigger = (value) => { |
| 710 | const trigger = String(value || 'load').trim().toLowerCase(); |
| 711 | if (trigger === 'on-click') return 'click'; |
| 712 | if (trigger === 'after-previous') return 'after'; |
| 713 | if (trigger === 'with-previous') return 'with'; |
| 714 | return supportedTriggers.has(trigger) ? trigger : 'load'; |
| 715 | }; |
| 716 | const normalizeSequence = (value) => { |
| 717 | const sequence = String(value || '').trim().toLowerCase(); |
| 718 | if (sequence === 'after-previous') return 'after'; |
| 719 | if (sequence === 'with-previous') return 'with'; |
| 720 | return supportedSequences.has(sequence) ? sequence : ''; |
| 721 | }; |
| 722 | const normalizeClickGroup = (value) => { |
| 723 | const group = String(value || '').trim(); |
| 724 | return group || ''; |
| 725 | }; |
| 726 | const isValidClickGroup = (value) => /^[A-Za-z0-9][A-Za-z0-9_-]*$/.test(String(value || '')); |
| 727 | const defaultFrom = (type) => { |
| 728 | if (type === 'fade-down') return 'top'; |
| 729 | if (type === 'slide-down') return 'top'; |
| 730 | if (type === 'fade-left' || type === 'slide-left') return 'right'; |
| 731 | if (type === 'slide-right') return 'left'; |
| 732 | if (type === 'fade-right') return 'left'; |
| 733 | if (type === 'wipe' || type === 'exit-wipe') return 'left'; |
| 734 | return 'bottom'; |
| 735 | }; |
| 736 | const normalizeFrom = (value, fallback) => { |
| 737 | const from = String(value || fallback || 'bottom').trim().toLowerCase(); |
| 738 | if (from === 'up' || from === 'top') return 'top'; |
| 739 | if (from === 'down' || from === 'bottom') return 'bottom'; |
| 740 | if (from === 'start') return 'left'; |
| 741 | if (from === 'end') return 'right'; |
| 742 | if (from === 'left' || from === 'right' || from === 'center') return from; |
| 743 | return fallback || 'bottom'; |
| 744 | }; |
| 745 | const extractedSelector = '[data-pptx-extracted-text], [data-pptx-extracted-shape], [data-pptx-extracted-image]'; |
| 746 | const collectTrace = (el, type, trigger, from, duration, delay, order, clickGroup) => { |
| 747 | const rect = el.getBoundingClientRect(); |
| 748 | if (rect.width < 2 || rect.height < 2) return; |
| 749 | const trace = { |
| 750 | type, |
| 751 | trigger, |
| 752 | from, |
| 753 | duration: Math.max(100, Math.min(5000, Number(duration) || 500)), |
| 754 | delay: Math.max(0, Math.min(30000, Number(delay) || 0)), |
| 755 | order, |
| 756 | x: Math.round(rect.left - pageRect.left), |
| 757 | y: Math.round(rect.top - pageRect.top), |
| 758 | w: Math.round(rect.width), |
| 759 | h: Math.round(rect.height) |
| 760 | }; |
| 761 | if (clickGroup) trace.clickGroup = clickGroup; |
| 762 | traces.push(trace); |
| 763 | }; |
| 764 | |
| 765 | const collectExtractedTargets = (animationRoot) => { |
| 766 | const candidates = []; |
| 767 | if (animationRoot.matches(extractedSelector)) candidates.push(animationRoot); |
| 768 | animationRoot.querySelectorAll(extractedSelector).forEach((candidate) => { |
| 769 | // Nested data-anim blocks own their extracted objects and receive a |
| 770 | // separate native effect, avoiding duplicate timing entries. |
| 771 | if (candidate.closest('[data-anim]') === animationRoot) candidates.push(candidate); |
| 772 | }); |
| 773 | return Array.from(new Set(candidates)); |
| 774 | }; |
| 775 | |
| 776 | const elements = Array.from(root.querySelectorAll('[data-anim]')); |
| 777 | |
| 778 | elements.forEach((el, order) => { |
| 779 | const type = normalizeType(el.getAttribute('data-anim')); |
| 780 | if (type === 'none' || !safeNativeTypes.has(type)) return; |
| 781 | |
| 782 | const trigger = normalizeTrigger(el.getAttribute('data-anim-trigger')); |
| 783 | const effectiveTrigger = trigger === 'click' ? 'click' : 'load'; |
| 784 | const sequence = normalizeSequence(el.getAttribute('data-anim-sequence')); |
| 785 | const clickGroupRaw = normalizeClickGroup(el.getAttribute('data-anim-click-group')); |
| 786 | const clickGroup = |
| 787 | effectiveTrigger === 'click' && isValidClickGroup(clickGroupRaw) ? clickGroupRaw : ''; |
| 788 | const from = normalizeFrom(el.getAttribute('data-anim-from'), defaultFrom(type)); |
| 789 | const duration = Math.max(100, Math.min(5000, Number(el.getAttribute('data-anim-duration')) || 500)); |
| 790 | const delayRaw = (el.getAttribute('data-anim-delay') || '0').trim(); |
| 791 | const staggerRaw = (el.getAttribute('data-anim-stagger') || '').trim(); |
| 792 | let delay = 0; |
| 793 | if (staggerRaw) { |
| 794 | const gap = Number(staggerRaw); |
| 795 | const normalizedGap = Number.isFinite(gap) ? Math.max(0, gap) : 0; |
| 796 | const key = effectiveTrigger; |
| 797 | if (staggerCounters[key] === undefined) staggerCounters[key] = 0; |
| 798 | delay = staggerCounters[key] * normalizedGap; |
| 799 | staggerCounters[key] += 1; |
| 800 | } else if (delayRaw.indexOf('stagger') === 0) { |
| 801 | const match = delayRaw.match(/stagger\\s*\\(\\s*(\\d+)\\s*\\)/); |
| 802 | const gap = match ? Number(match[1]) : 50; |
| 803 | const key = effectiveTrigger; |
| 804 | if (staggerCounters[key] === undefined) staggerCounters[key] = 0; |
| 805 | delay = staggerCounters[key] * gap; |
| 806 | staggerCounters[key] += 1; |
| 807 | } else { |
| 808 | delay = Number(delayRaw) || 0; |
| 809 | } |
| 810 | |
| 811 | if (effectiveTrigger === 'load') { |
| 812 | const sequencingMode = sequence || trigger; |
| 813 | if (sequencingMode === 'after') { |
| 814 | delay += lastSequenceEnd; |
| 815 | lastSequenceStart = delay; |
| 816 | lastSequenceEnd = Math.max(lastSequenceEnd, delay + duration); |
| 817 | } else if (sequencingMode === 'with') { |
| 818 | delay += lastSequenceStart; |
| 819 | lastSequenceEnd = Math.max(lastSequenceEnd, delay + duration); |
| 820 | } else { |
| 821 | lastSequenceStart = delay; |
| 822 | lastSequenceEnd = Math.max(lastSequenceEnd, delay + duration); |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | // The extractor adds these attributes only after it has created a native |
| 827 | // PPT text/shape/image. Use those exact boxes instead of guessing from a |
| 828 | // parent container; unmapped source content remains visible in the raster |
| 829 | // fallback and can never disappear because of a timing entry. |
| 830 | collectExtractedTargets(el).forEach((target) => { |
| 831 | collectTrace(target, type, effectiveTrigger, from, duration, delay, order, clickGroup); |
| 832 | }); |
| 833 | }); |
| 834 | |
| 835 | return traces; |
| 836 | })() |
| 837 | ` |
| 838 | |
| 839 | // PPTX element timing is not reliable enough for normal editable exports. This |
| 840 | // only detects that the source page contains animation so the slide can use a |
| 841 | // safe, page-level transition without hiding individual editable objects. |
| 842 | export const HAS_DECLARED_PPTX_ANIMATION_SCRIPT = ` |
| 843 | (() => { |
| 844 | const root = |
| 845 | document.querySelector('.ppt-page-root[data-ppt-guard-root="1"]') || |
| 846 | document.querySelector('.ppt-page-root') || |
| 847 | document.body; |
| 848 | const selector = '[data-anim]:not([data-anim="none"]), [data-anime], [data-animate]'; |
| 849 | return Boolean( |
| 850 | root.matches(selector) || root.querySelector(selector) |
| 851 | ); |
| 852 | })() |
| 853 | ` |
| 854 | |
| 855 | export const COLLECT_KATEX_BLOCK_RECTS_SCRIPT = ` |
| 856 | (async () => { |
| 857 | const root = document.querySelector('.ppt-page-root') || document.body; |
| 858 | const pageRect = root.getBoundingClientRect(); |
| 859 | const blocks = root.querySelectorAll('[data-pptx-formula-block="1"]'); |
| 860 | const results = []; |
| 861 | for (const block of blocks) { |
| 862 | const rect = block.getBoundingClientRect(); |
| 863 | if (rect.width < 2 || rect.height < 2) continue; |
| 864 | results.push({ |
| 865 | x: Math.round(rect.left - pageRect.left), |
| 866 | y: Math.round(rect.top - pageRect.top), |
| 867 | w: Math.round(rect.width), |
| 868 | h: Math.round(rect.height) |
| 869 | }); |
| 870 | } |
| 871 | return results; |
| 872 | })() |
| 873 | ` |
| 874 | |
| 875 | export const WAIT_FOR_PPTX_CAPTURE_FRAME_SCRIPT = ` |
| 876 | (async () => { |
| 877 | void document.body.offsetHeight; |
| 878 | await new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))); |
| 879 | void document.body.offsetHeight; |
| 880 | return true; |
| 881 | })() |
| 882 | ` |
| 883 |