| 1 | import { BrowserWindow, type NativeImage } from 'electron' |
| 2 | import log from 'electron-log/main.js' |
| 3 | import fs from 'fs' |
| 4 | import path from 'path' |
| 5 | import { pathToFileURL } from 'url' |
| 6 | import { |
| 7 | buildHtmlToPptxExtractScript, |
| 8 | normalizeExtractedHtmlToPptxSlide, |
| 9 | type HtmlToPptxSlide, |
| 10 | type HtmlToPptxTextBox |
| 11 | } from '@arcsin1/html2pptx' |
| 12 | import type { SlideSizePreset } from '@shared/slide-size' |
| 13 | import { |
| 14 | FREEZE_PAGE_FOR_PPTX_SCRIPT, |
| 15 | HIDE_FOR_PPTX_BACKGROUND_SCRIPT, |
| 16 | RESTORE_PPTX_PAGE_AFTER_BACKGROUND_CAPTURE_SCRIPT, |
| 17 | RESET_SCALE_FOR_PPTX_CAPTURE_SCRIPT, |
| 18 | WAIT_FOR_PPTX_CAPTURE_FRAME_SCRIPT, |
| 19 | MARK_KATEX_BLOCKS_SCRIPT, |
| 20 | COLLECT_KATEX_BLOCK_RECTS_SCRIPT, |
| 21 | HAS_DECLARED_PPTX_ANIMATION_SCRIPT, |
| 22 | buildMarkPptxExtractedTextForBackgroundScript |
| 23 | } from './browser-scripts' |
| 24 | import { |
| 25 | isPptxStaticBackgroundShape, |
| 26 | resolvePptxCaptureRect, |
| 27 | resolvePptxExportLayout, |
| 28 | type PptxExportLayout |
| 29 | } from './static-background' |
| 30 | import { buildExtractionReportWarning } from './extraction-report' |
| 31 | |
| 32 | export interface HtmlPageForPptx { |
| 33 | htmlPath: string |
| 34 | pageId: string |
| 35 | title?: string |
| 36 | } |
| 37 | |
| 38 | export interface HtmlPageToPptxSlideOptions { |
| 39 | page: HtmlPageForPptx |
| 40 | slideSize: SlideSizePreset |
| 41 | timeoutMs: number |
| 42 | settleMs: number |
| 43 | animationMode?: 'static' | 'slide-transition' |
| 44 | waitForPrintReadySignal: (args: { |
| 45 | win: BrowserWindow |
| 46 | pageId: string |
| 47 | timeoutMs: number |
| 48 | }) => Promise<{ timedOut: boolean }> |
| 49 | } |
| 50 | |
| 51 | export interface HtmlPageToPptxSlideResult { |
| 52 | slide: HtmlToPptxSlide |
| 53 | warning?: string |
| 54 | } |
| 55 | |
| 56 | const PPTX_BACKGROUND_CAPTURE_ATTEMPTS = 3 |
| 57 | const TEXT_RESIDUE_MAX_BOXES = 24 |
| 58 | const TEXT_RESIDUE_GRID_COLUMNS = 18 |
| 59 | const TEXT_RESIDUE_GRID_ROWS = 10 |
| 60 | const TEXT_RESIDUE_COLOR_DISTANCE = 62 |
| 61 | const TEXT_RESIDUE_RATIO_THRESHOLD = 0.075 |
| 62 | |
| 63 | const sleep = (ms: number): Promise<void> => new Promise((resolve) => setTimeout(resolve, ms)) |
| 64 | |
| 65 | const parseHexColor = (value?: string): { r: number; g: number; b: number } | null => { |
| 66 | const normalized = String(value || '') |
| 67 | .trim() |
| 68 | .replace(/^#/, '') |
| 69 | if (/^[0-9a-f]{3}$/i.test(normalized)) { |
| 70 | const [r, g, b] = normalized.split('').map((char) => Number.parseInt(`${char}${char}`, 16)) |
| 71 | return { r, g, b } |
| 72 | } |
| 73 | if (!/^[0-9a-f]{6}$/i.test(normalized)) return null |
| 74 | return { |
| 75 | r: Number.parseInt(normalized.slice(0, 2), 16), |
| 76 | g: Number.parseInt(normalized.slice(2, 4), 16), |
| 77 | b: Number.parseInt(normalized.slice(4, 6), 16) |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | const colorDistance = ( |
| 82 | left: { r: number; g: number; b: number }, |
| 83 | right: { r: number; g: number; b: number } |
| 84 | ): number => { |
| 85 | const dr = left.r - right.r |
| 86 | const dg = left.g - right.g |
| 87 | const db = left.b - right.b |
| 88 | return Math.sqrt(dr * dr + dg * dg + db * db) |
| 89 | } |
| 90 | |
| 91 | const pixelMatchesTextColor = ( |
| 92 | bitmap: Buffer, |
| 93 | index: number, |
| 94 | target: { r: number; g: number; b: number } |
| 95 | ): boolean => { |
| 96 | const b = bitmap[index] ?? 0 |
| 97 | const g = bitmap[index + 1] ?? 0 |
| 98 | const r = bitmap[index + 2] ?? 0 |
| 99 | return colorDistance({ r, g, b }, target) <= TEXT_RESIDUE_COLOR_DISTANCE |
| 100 | } |
| 101 | |
| 102 | const hasTextResidueInCapture = ( |
| 103 | image: NativeImage, |
| 104 | texts: HtmlToPptxTextBox[], |
| 105 | layout: PptxExportLayout |
| 106 | ): { suspicious: boolean; checkedBoxes: number; maxRatio: number } => { |
| 107 | if (texts.length === 0) return { suspicious: false, checkedBoxes: 0, maxRatio: 0 } |
| 108 | const size = image.getSize() |
| 109 | const bitmap = image.toBitmap() |
| 110 | if (!size.width || !size.height || bitmap.length < size.width * size.height * 4) { |
| 111 | return { suspicious: false, checkedBoxes: 0, maxRatio: 0 } |
| 112 | } |
| 113 | const pxPerInX = size.width / layout.slideWidthIn |
| 114 | const pxPerInY = size.height / layout.slideHeightIn |
| 115 | const candidates = texts |
| 116 | .filter((text) => { |
| 117 | const color = parseHexColor(text.color) |
| 118 | return Boolean( |
| 119 | color && |
| 120 | text.text.trim().length >= 2 && |
| 121 | text.w > 0.05 && |
| 122 | text.h > 0.03 && |
| 123 | (text.opacity ?? 1) > 0.05 |
| 124 | ) |
| 125 | }) |
| 126 | .sort((a, b) => b.fontSize * b.w * b.h - a.fontSize * a.w * a.h) |
| 127 | .slice(0, TEXT_RESIDUE_MAX_BOXES) |
| 128 | |
| 129 | let checkedBoxes = 0 |
| 130 | let maxRatio = 0 |
| 131 | for (const text of candidates) { |
| 132 | const target = parseHexColor(text.color) |
| 133 | if (!target) continue |
| 134 | const left = Math.max(0, Math.floor(text.x * pxPerInX)) |
| 135 | const top = Math.max(0, Math.floor(text.y * pxPerInY)) |
| 136 | const right = Math.min(size.width - 1, Math.ceil((text.x + text.w) * pxPerInX)) |
| 137 | const bottom = Math.min(size.height - 1, Math.ceil((text.y + text.h) * pxPerInY)) |
| 138 | const width = right - left |
| 139 | const height = bottom - top |
| 140 | if (width < 4 || height < 4) continue |
| 141 | |
| 142 | checkedBoxes += 1 |
| 143 | let samples = 0 |
| 144 | let textLikePixels = 0 |
| 145 | const columns = Math.min(TEXT_RESIDUE_GRID_COLUMNS, Math.max(3, Math.floor(width / 3))) |
| 146 | const rows = Math.min(TEXT_RESIDUE_GRID_ROWS, Math.max(3, Math.floor(height / 3))) |
| 147 | for (let row = 0; row < rows; row += 1) { |
| 148 | const y = Math.min(bottom, top + Math.floor(((row + 0.5) * height) / rows)) |
| 149 | for (let column = 0; column < columns; column += 1) { |
| 150 | const x = Math.min(right, left + Math.floor(((column + 0.5) * width) / columns)) |
| 151 | const index = (y * size.width + x) * 4 |
| 152 | samples += 1 |
| 153 | if (pixelMatchesTextColor(bitmap, index, target)) { |
| 154 | textLikePixels += 1 |
| 155 | } |
| 156 | } |
| 157 | } |
| 158 | if (samples === 0) continue |
| 159 | const ratio = textLikePixels / samples |
| 160 | maxRatio = Math.max(maxRatio, ratio) |
| 161 | if (textLikePixels >= 8 && ratio >= TEXT_RESIDUE_RATIO_THRESHOLD) { |
| 162 | return { suspicious: true, checkedBoxes, maxRatio } |
| 163 | } |
| 164 | } |
| 165 | |
| 166 | return { suspicious: false, checkedBoxes, maxRatio } |
| 167 | } |
| 168 | |
| 169 | const capturePptxBackgroundWithRetry = async ( |
| 170 | win: BrowserWindow, |
| 171 | pageId: string, |
| 172 | texts: HtmlToPptxTextBox[], |
| 173 | layout: PptxExportLayout, |
| 174 | hideScript?: string, |
| 175 | textMaskScript?: string |
| 176 | ): Promise<{ image: NativeImage; warning?: string; hasTextResidue: boolean }> => { |
| 177 | let lastImage: NativeImage | null = null |
| 178 | let lastCheck: ReturnType<typeof hasTextResidueInCapture> | null = null |
| 179 | const script = hideScript || HIDE_FOR_PPTX_BACKGROUND_SCRIPT |
| 180 | |
| 181 | for (let attempt = 1; attempt <= PPTX_BACKGROUND_CAPTURE_ATTEMPTS; attempt += 1) { |
| 182 | if (textMaskScript) { |
| 183 | await win.webContents.executeJavaScript(textMaskScript, true) |
| 184 | } |
| 185 | await win.webContents.executeJavaScript(script, true) |
| 186 | await win.webContents.executeJavaScript(WAIT_FOR_PPTX_CAPTURE_FRAME_SCRIPT, true) |
| 187 | await sleep(process.platform === 'win32' ? 180 : 80) |
| 188 | await win.webContents.executeJavaScript(WAIT_FOR_PPTX_CAPTURE_FRAME_SCRIPT, true) |
| 189 | |
| 190 | const image = await win.webContents.capturePage({ |
| 191 | x: 0, |
| 192 | y: 0, |
| 193 | width: layout.captureWidthPx, |
| 194 | height: layout.captureHeightPx |
| 195 | }) |
| 196 | const check = hasTextResidueInCapture(image, texts, layout) |
| 197 | lastImage = image |
| 198 | lastCheck = check |
| 199 | if (!check.suspicious) { |
| 200 | if (attempt > 1) { |
| 201 | log.info('[export:pptx] background capture recovered after retry', { |
| 202 | pageId, |
| 203 | attempt, |
| 204 | checkedBoxes: check.checkedBoxes, |
| 205 | maxRatio: Number(check.maxRatio.toFixed(3)) |
| 206 | }) |
| 207 | } |
| 208 | return { image, hasTextResidue: false } |
| 209 | } |
| 210 | |
| 211 | log.warn('[export:pptx] background capture text residue detected', { |
| 212 | pageId, |
| 213 | attempt, |
| 214 | checkedBoxes: check.checkedBoxes, |
| 215 | maxRatio: Number(check.maxRatio.toFixed(3)) |
| 216 | }) |
| 217 | } |
| 218 | |
| 219 | if (!lastImage) { |
| 220 | throw new Error(`PPTX background capture failed for ${pageId}`) |
| 221 | } |
| 222 | return { |
| 223 | image: lastImage, |
| 224 | hasTextResidue: true, |
| 225 | warning: `页面 ${pageId} 背景截图可能仍有文字残影，已使用最后一次截图。${ |
| 226 | lastCheck ? `检测比率 ${Number(lastCheck.maxRatio.toFixed(3))}` : '' |
| 227 | }` |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | const createPptxBrowserWindow = (layout: PptxExportLayout): BrowserWindow => { |
| 232 | const win = new BrowserWindow({ |
| 233 | show: false, |
| 234 | width: layout.captureWidthPx, |
| 235 | height: layout.captureHeightPx, |
| 236 | backgroundColor: '#ffffff', |
| 237 | webPreferences: { |
| 238 | contextIsolation: true, |
| 239 | sandbox: false, |
| 240 | nodeIntegration: false, |
| 241 | backgroundThrottling: false, |
| 242 | offscreen: false |
| 243 | } |
| 244 | }) |
| 245 | win.webContents.setZoomFactor(1) |
| 246 | win.setContentSize(layout.captureWidthPx, layout.captureHeightPx) |
| 247 | return win |
| 248 | } |
| 249 | |
| 250 | const loadAndFreezePptxPage = async ( |
| 251 | win: BrowserWindow, |
| 252 | page: HtmlPageForPptx, |
| 253 | timeoutMs: number, |
| 254 | settleMs: number, |
| 255 | waitForPrintReadySignal: HtmlPageToPptxSlideOptions['waitForPrintReadySignal'] |
| 256 | ): Promise<{ timedOut: boolean }> => { |
| 257 | const pageUrl = new URL(pathToFileURL(page.htmlPath).toString()) |
| 258 | pageUrl.searchParams.set('fit', 'off') |
| 259 | pageUrl.searchParams.set('print', '1') |
| 260 | pageUrl.searchParams.set('export', '1') |
| 261 | pageUrl.searchParams.set('pageId', page.pageId) |
| 262 | pageUrl.searchParams.set('printTimeoutMs', String(timeoutMs)) |
| 263 | pageUrl.searchParams.set( |
| 264 | '_pptMasterExpected', |
| 265 | fs.existsSync(path.join(path.dirname(page.htmlPath), 'master', 'master.css')) ? '1' : '0' |
| 266 | ) |
| 267 | pageUrl.searchParams.set( |
| 268 | '_pptMasterElementsExpected', |
| 269 | fs.existsSync(path.join(path.dirname(page.htmlPath), 'master', 'master.html')) ? '1' : '0' |
| 270 | ) |
| 271 | pageUrl.searchParams.set('_ts', String(Date.now())) |
| 272 | |
| 273 | const readyWaitPromise = waitForPrintReadySignal({ |
| 274 | win, |
| 275 | pageId: page.pageId, |
| 276 | timeoutMs |
| 277 | }) |
| 278 | |
| 279 | await win.loadURL(pageUrl.toString()) |
| 280 | await win.webContents.executeJavaScript(FREEZE_PAGE_FOR_PPTX_SCRIPT, true) |
| 281 | const readyResult = await readyWaitPromise |
| 282 | if (readyResult.timedOut) { |
| 283 | log.warn('[export:pptx] print ready timeout', { |
| 284 | pageId: page.pageId, |
| 285 | htmlPath: page.htmlPath, |
| 286 | timeoutMs |
| 287 | }) |
| 288 | } |
| 289 | |
| 290 | await sleep(settleMs) |
| 291 | await win.webContents.executeJavaScript(FREEZE_PAGE_FOR_PPTX_SCRIPT, true) |
| 292 | await sleep(450) |
| 293 | await win.webContents.executeJavaScript(FREEZE_PAGE_FOR_PPTX_SCRIPT, true) |
| 294 | await sleep(80) |
| 295 | |
| 296 | return readyResult |
| 297 | } |
| 298 | |
| 299 | const captureFullPage = async ( |
| 300 | win: BrowserWindow, |
| 301 | layout: PptxExportLayout |
| 302 | ): Promise<NativeImage> => { |
| 303 | await win.webContents.executeJavaScript(WAIT_FOR_PPTX_CAPTURE_FRAME_SCRIPT, true) |
| 304 | await sleep(process.platform === 'win32' ? 180 : 80) |
| 305 | await win.webContents.executeJavaScript(WAIT_FOR_PPTX_CAPTURE_FRAME_SCRIPT, true) |
| 306 | return win.webContents.capturePage({ |
| 307 | x: 0, |
| 308 | y: 0, |
| 309 | width: layout.captureWidthPx, |
| 310 | height: layout.captureHeightPx |
| 311 | }) |
| 312 | } |
| 313 | |
| 314 | const buildRasterPptxSlide = ( |
| 315 | title: string | undefined, |
| 316 | image: NativeImage, |
| 317 | layout: PptxExportLayout |
| 318 | ): HtmlToPptxSlide => ({ |
| 319 | title, |
| 320 | texts: [], |
| 321 | shapes: [], |
| 322 | images: [], |
| 323 | tables: [], |
| 324 | backgroundImage: { |
| 325 | dataUri: `data:image/png;base64,${image.toPNG().toString('base64')}`, |
| 326 | mimeType: 'image/png', |
| 327 | x: 0, |
| 328 | y: 0, |
| 329 | w: layout.slideWidthIn, |
| 330 | h: layout.slideHeightIn, |
| 331 | alt: title |
| 332 | } |
| 333 | }) |
| 334 | |
| 335 | export const captureHtmlPageToPptxImageSlide = async ({ |
| 336 | page, |
| 337 | slideSize, |
| 338 | timeoutMs, |
| 339 | settleMs, |
| 340 | waitForPrintReadySignal |
| 341 | }: HtmlPageToPptxSlideOptions): Promise<HtmlPageToPptxSlideResult> => { |
| 342 | const layout = resolvePptxExportLayout(slideSize) |
| 343 | const win = createPptxBrowserWindow(layout) |
| 344 | |
| 345 | try { |
| 346 | const readyResult = await loadAndFreezePptxPage( |
| 347 | win, |
| 348 | page, |
| 349 | timeoutMs, |
| 350 | settleMs, |
| 351 | waitForPrintReadySignal |
| 352 | ) |
| 353 | |
| 354 | // Reset page fit scale for full-resolution capture |
| 355 | await win.webContents.executeJavaScript(RESET_SCALE_FOR_PPTX_CAPTURE_SCRIPT, true) |
| 356 | |
| 357 | const slide = buildRasterPptxSlide(page.title, await captureFullPage(win, layout), layout) |
| 358 | |
| 359 | return { |
| 360 | slide, |
| 361 | warning: readyResult.timedOut |
| 362 | ? `页面 ${page.pageId} 未收到打印就绪信号，已按当前状态导出` |
| 363 | : undefined |
| 364 | } |
| 365 | } finally { |
| 366 | if (!win.isDestroyed()) { |
| 367 | win.destroy() |
| 368 | } |
| 369 | } |
| 370 | } |
| 371 | |
| 372 | export const extractHtmlPageToPptxSlide = async ({ |
| 373 | page, |
| 374 | slideSize, |
| 375 | timeoutMs, |
| 376 | settleMs, |
| 377 | animationMode = 'slide-transition', |
| 378 | waitForPrintReadySignal |
| 379 | }: HtmlPageToPptxSlideOptions): Promise<HtmlPageToPptxSlideResult> => { |
| 380 | const layout = resolvePptxExportLayout(slideSize) |
| 381 | const win = createPptxBrowserWindow(layout) |
| 382 | |
| 383 | try { |
| 384 | const readyResult = await loadAndFreezePptxPage( |
| 385 | win, |
| 386 | page, |
| 387 | timeoutMs, |
| 388 | settleMs, |
| 389 | waitForPrintReadySignal |
| 390 | ) |
| 391 | |
| 392 | // Mark formula blocks before extraction so text extraction can skip them |
| 393 | await win.webContents.executeJavaScript(MARK_KATEX_BLOCKS_SCRIPT, true) |
| 394 | |
| 395 | const extracted = await win.webContents.executeJavaScript( |
| 396 | buildHtmlToPptxExtractScript({ |
| 397 | pageWidthPx: layout.captureWidthPx, |
| 398 | pageHeightPx: layout.captureHeightPx, |
| 399 | slideWidthIn: layout.slideWidthIn, |
| 400 | slideHeightIn: layout.slideHeightIn, |
| 401 | maxTextBoxes: 360, |
| 402 | maxShapes: 400, |
| 403 | maxImages: 80, |
| 404 | unsupportedTransformStrategy: 'raster-fallback' |
| 405 | }), |
| 406 | true |
| 407 | ) |
| 408 | |
| 409 | const slide = normalizeExtractedHtmlToPptxSlide(extracted, page.title, { |
| 410 | widthIn: layout.slideWidthIn, |
| 411 | heightIn: layout.slideHeightIn |
| 412 | }) |
| 413 | |
| 414 | // Keep large edge-anchored fills in the screenshot base. They are visual |
| 415 | // structure, not useful editable objects, and their size causes overlap- |
| 416 | // based animation matching to capture unrelated animated text. |
| 417 | if (slide.shapes?.length) { |
| 418 | slide.shapes = slide.shapes.filter((shape) => !isPptxStaticBackgroundShape(shape, layout)) |
| 419 | } |
| 420 | |
| 421 | if (animationMode === 'slide-transition') { |
| 422 | const hasDeclaredAnimation = await win.webContents.executeJavaScript( |
| 423 | HAS_DECLARED_PPTX_ANIMATION_SCRIPT, |
| 424 | true |
| 425 | ) |
| 426 | if (hasDeclaredAnimation) { |
| 427 | slide.transitionType = 'fade' |
| 428 | slide.transitionDurationMs = 350 |
| 429 | } |
| 430 | } |
| 431 | |
| 432 | // Reset page fit scale BEFORE background capture for full resolution, |
| 433 | // but AFTER extraction (which used the scaled coordinates for correct positions). |
| 434 | await win.webContents.executeJavaScript(RESET_SCALE_FOR_PPTX_CAPTURE_SCRIPT, true) |
| 435 | |
| 436 | // Capture formula blocks as overlay images (whole blocks containing katex) |
| 437 | const blockRects: Array<{ x: number; y: number; w: number; h: number }> = |
| 438 | await win.webContents.executeJavaScript(COLLECT_KATEX_BLOCK_RECTS_SCRIPT, true) |
| 439 | for (const rect of blockRects) { |
| 440 | const captureRect = resolvePptxCaptureRect(rect, layout, 2) |
| 441 | if (!captureRect) continue |
| 442 | const img = await win.webContents.capturePage(captureRect) |
| 443 | const png = img.toPNG() |
| 444 | const dataUri = `data:image/png;base64,${png.toString('base64')}` |
| 445 | if (!slide.overlayImages) slide.overlayImages = [] |
| 446 | slide.overlayImages.push({ |
| 447 | dataUri, |
| 448 | mimeType: 'image/png', |
| 449 | x: (captureRect.x / layout.captureWidthPx) * layout.slideWidthIn, |
| 450 | y: (captureRect.y / layout.captureHeightPx) * layout.slideHeightIn, |
| 451 | w: (captureRect.width / layout.captureWidthPx) * layout.slideWidthIn, |
| 452 | h: (captureRect.height / layout.captureHeightPx) * layout.slideHeightIn, |
| 453 | alt: 'formula' |
| 454 | }) |
| 455 | } |
| 456 | |
| 457 | // Background capture: keep decorative elements (blur blobs, glass-morphism) visible, |
| 458 | // hide text and non-decorative shapes/images (which are extracted separately). |
| 459 | const backgroundCapture = await capturePptxBackgroundWithRetry( |
| 460 | win, |
| 461 | page.pageId, |
| 462 | slide.texts, |
| 463 | layout, |
| 464 | HIDE_FOR_PPTX_BACKGROUND_SCRIPT, |
| 465 | buildMarkPptxExtractedTextForBackgroundScript(slide.texts, { |
| 466 | widthIn: layout.slideWidthIn, |
| 467 | heightIn: layout.slideHeightIn |
| 468 | }) |
| 469 | ) |
| 470 | if (backgroundCapture.hasTextResidue) { |
| 471 | await win.webContents.executeJavaScript(RESTORE_PPTX_PAGE_AFTER_BACKGROUND_CAPTURE_SCRIPT, true) |
| 472 | const rasterSlide = buildRasterPptxSlide(page.title, await captureFullPage(win, layout), layout) |
| 473 | return { |
| 474 | slide: rasterSlide, |
| 475 | warning: `页面 ${page.pageId} 的背景截图仍有文字残影，已降级为整页图片以避免文字重影` |
| 476 | } |
| 477 | } |
| 478 | const backgroundPng = backgroundCapture.image.toPNG() |
| 479 | slide.backgroundImage = { |
| 480 | dataUri: `data:image/png;base64,${backgroundPng.toString('base64')}`, |
| 481 | mimeType: 'image/png', |
| 482 | x: 0, |
| 483 | y: 0, |
| 484 | w: layout.slideWidthIn, |
| 485 | h: layout.slideHeightIn, |
| 486 | alt: page.title |
| 487 | } |
| 488 | |
| 489 | return { |
| 490 | slide, |
| 491 | warning: [ |
| 492 | readyResult.timedOut |
| 493 | ? `页面 ${page.pageId} 未收到打印就绪信号，已按当前状态导出` |
| 494 | : '', |
| 495 | backgroundCapture.warning || '', |
| 496 | buildExtractionReportWarning(page.pageId, slide.extractionReport) || '' |
| 497 | ] |
| 498 | .filter(Boolean) |
| 499 | .join('；') |
| 500 | } |
| 501 | } finally { |
| 502 | if (!win.isDestroyed()) { |
| 503 | win.destroy() |
| 504 | } |
| 505 | } |
| 506 | } |
| 507 |