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Diffstat (limited to 'toolkit/components/pdfjs/content/web/viewer-geckoview.mjs')
| -rw-r--r-- | toolkit/components/pdfjs/content/web/viewer-geckoview.mjs | 9554 |
1 files changed, 9554 insertions, 0 deletions
diff --git a/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs b/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs new file mode 100644 index 0000000000..8ba8147a9f --- /dev/null +++ b/toolkit/components/pdfjs/content/web/viewer-geckoview.mjs @@ -0,0 +1,9554 @@ +/** + * @licstart The following is the entire license notice for the + * JavaScript code in this page + * + * Copyright 2023 Mozilla Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + * @licend The above is the entire license notice for the + * JavaScript code in this page + */ + +/******/ // The require scope +/******/ var __webpack_require__ = {}; +/******/ +/************************************************************************/ +/******/ /* webpack/runtime/define property getters */ +/******/ (() => { +/******/ // define getter functions for harmony exports +/******/ __webpack_require__.d = (exports, definition) => { +/******/ for(var key in definition) { +/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) { +/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] }); +/******/ } +/******/ } +/******/ }; +/******/ })(); +/******/ +/******/ /* webpack/runtime/hasOwnProperty shorthand */ +/******/ (() => { +/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop)) +/******/ })(); +/******/ +/************************************************************************/ +var __webpack_exports__ = {}; + +// EXPORTS +__webpack_require__.d(__webpack_exports__, { + PDFViewerApplication: () => (/* reexport */ PDFViewerApplication), + PDFViewerApplicationConstants: () => (/* binding */ AppConstants), + PDFViewerApplicationOptions: () => (/* reexport */ AppOptions) +}); + +;// CONCATENATED MODULE: ./web/ui_utils.js +const DEFAULT_SCALE_VALUE = "auto"; +const DEFAULT_SCALE = 1.0; +const DEFAULT_SCALE_DELTA = 1.1; +const MIN_SCALE = 0.1; +const MAX_SCALE = 10.0; +const UNKNOWN_SCALE = 0; +const MAX_AUTO_SCALE = 1.25; +const SCROLLBAR_PADDING = 40; +const VERTICAL_PADDING = 5; +const RenderingStates = { + INITIAL: 0, + RUNNING: 1, + PAUSED: 2, + FINISHED: 3 +}; +const PresentationModeState = { + UNKNOWN: 0, + NORMAL: 1, + CHANGING: 2, + FULLSCREEN: 3 +}; +const SidebarView = { + UNKNOWN: -1, + NONE: 0, + THUMBS: 1, + OUTLINE: 2, + ATTACHMENTS: 3, + LAYERS: 4 +}; +const TextLayerMode = { + DISABLE: 0, + ENABLE: 1, + ENABLE_PERMISSIONS: 2 +}; +const ScrollMode = { + UNKNOWN: -1, + VERTICAL: 0, + HORIZONTAL: 1, + WRAPPED: 2, + PAGE: 3 +}; +const SpreadMode = { + UNKNOWN: -1, + NONE: 0, + ODD: 1, + EVEN: 2 +}; +const CursorTool = { + SELECT: 0, + HAND: 1, + ZOOM: 2 +}; +const AutoPrintRegExp = /\bprint\s*\(/; +class OutputScale { + constructor() { + const pixelRatio = window.devicePixelRatio || 1; + this.sx = pixelRatio; + this.sy = pixelRatio; + } + get scaled() { + return this.sx !== 1 || this.sy !== 1; + } +} +function scrollIntoView(element, spot, scrollMatches = false) { + let parent = element.offsetParent; + if (!parent) { + console.error("offsetParent is not set -- cannot scroll"); + return; + } + let offsetY = element.offsetTop + element.clientTop; + let offsetX = element.offsetLeft + element.clientLeft; + while (parent.clientHeight === parent.scrollHeight && parent.clientWidth === parent.scrollWidth || scrollMatches && (parent.classList.contains("markedContent") || getComputedStyle(parent).overflow === "hidden")) { + offsetY += parent.offsetTop; + offsetX += parent.offsetLeft; + parent = parent.offsetParent; + if (!parent) { + return; + } + } + if (spot) { + if (spot.top !== undefined) { + offsetY += spot.top; + } + if (spot.left !== undefined) { + offsetX += spot.left; + parent.scrollLeft = offsetX; + } + } + parent.scrollTop = offsetY; +} +function watchScroll(viewAreaElement, callback) { + const debounceScroll = function (evt) { + if (rAF) { + return; + } + rAF = window.requestAnimationFrame(function viewAreaElementScrolled() { + rAF = null; + const currentX = viewAreaElement.scrollLeft; + const lastX = state.lastX; + if (currentX !== lastX) { + state.right = currentX > lastX; + } + state.lastX = currentX; + const currentY = viewAreaElement.scrollTop; + const lastY = state.lastY; + if (currentY !== lastY) { + state.down = currentY > lastY; + } + state.lastY = currentY; + callback(state); + }); + }; + const state = { + right: true, + down: true, + lastX: viewAreaElement.scrollLeft, + lastY: viewAreaElement.scrollTop, + _eventHandler: debounceScroll + }; + let rAF = null; + viewAreaElement.addEventListener("scroll", debounceScroll, true); + return state; +} +function parseQueryString(query) { + const params = new Map(); + for (const [key, value] of new URLSearchParams(query)) { + params.set(key.toLowerCase(), value); + } + return params; +} +const InvisibleCharsRegExp = /[\x00-\x1F]/g; +function removeNullCharacters(str, replaceInvisible = false) { + if (!InvisibleCharsRegExp.test(str)) { + return str; + } + if (replaceInvisible) { + return str.replaceAll(InvisibleCharsRegExp, m => m === "\x00" ? "" : " "); + } + return str.replaceAll("\x00", ""); +} +function binarySearchFirstItem(items, condition, start = 0) { + let minIndex = start; + let maxIndex = items.length - 1; + if (maxIndex < 0 || !condition(items[maxIndex])) { + return items.length; + } + if (condition(items[minIndex])) { + return minIndex; + } + while (minIndex < maxIndex) { + const currentIndex = minIndex + maxIndex >> 1; + const currentItem = items[currentIndex]; + if (condition(currentItem)) { + maxIndex = currentIndex; + } else { + minIndex = currentIndex + 1; + } + } + return minIndex; +} +function approximateFraction(x) { + if (Math.floor(x) === x) { + return [x, 1]; + } + const xinv = 1 / x; + const limit = 8; + if (xinv > limit) { + return [1, limit]; + } else if (Math.floor(xinv) === xinv) { + return [1, xinv]; + } + const x_ = x > 1 ? xinv : x; + let a = 0, + b = 1, + c = 1, + d = 1; + while (true) { + const p = a + c, + q = b + d; + if (q > limit) { + break; + } + if (x_ <= p / q) { + c = p; + d = q; + } else { + a = p; + b = q; + } + } + let result; + if (x_ - a / b < c / d - x_) { + result = x_ === x ? [a, b] : [b, a]; + } else { + result = x_ === x ? [c, d] : [d, c]; + } + return result; +} +function roundToDivide(x, div) { + const r = x % div; + return r === 0 ? x : Math.round(x - r + div); +} +function getPageSizeInches({ + view, + userUnit, + rotate +}) { + const [x1, y1, x2, y2] = view; + const changeOrientation = rotate % 180 !== 0; + const width = (x2 - x1) / 72 * userUnit; + const height = (y2 - y1) / 72 * userUnit; + return { + width: changeOrientation ? height : width, + height: changeOrientation ? width : height + }; +} +function backtrackBeforeAllVisibleElements(index, views, top) { + if (index < 2) { + return index; + } + let elt = views[index].div; + let pageTop = elt.offsetTop + elt.clientTop; + if (pageTop >= top) { + elt = views[index - 1].div; + pageTop = elt.offsetTop + elt.clientTop; + } + for (let i = index - 2; i >= 0; --i) { + elt = views[i].div; + if (elt.offsetTop + elt.clientTop + elt.clientHeight <= pageTop) { + break; + } + index = i; + } + return index; +} +function getVisibleElements({ + scrollEl, + views, + sortByVisibility = false, + horizontal = false, + rtl = false +}) { + const top = scrollEl.scrollTop, + bottom = top + scrollEl.clientHeight; + const left = scrollEl.scrollLeft, + right = left + scrollEl.clientWidth; + function isElementBottomAfterViewTop(view) { + const element = view.div; + const elementBottom = element.offsetTop + element.clientTop + element.clientHeight; + return elementBottom > top; + } + function isElementNextAfterViewHorizontally(view) { + const element = view.div; + const elementLeft = element.offsetLeft + element.clientLeft; + const elementRight = elementLeft + element.clientWidth; + return rtl ? elementLeft < right : elementRight > left; + } + const visible = [], + ids = new Set(), + numViews = views.length; + let firstVisibleElementInd = binarySearchFirstItem(views, horizontal ? isElementNextAfterViewHorizontally : isElementBottomAfterViewTop); + if (firstVisibleElementInd > 0 && firstVisibleElementInd < numViews && !horizontal) { + firstVisibleElementInd = backtrackBeforeAllVisibleElements(firstVisibleElementInd, views, top); + } + let lastEdge = horizontal ? right : -1; + for (let i = firstVisibleElementInd; i < numViews; i++) { + const view = views[i], + element = view.div; + const currentWidth = element.offsetLeft + element.clientLeft; + const currentHeight = element.offsetTop + element.clientTop; + const viewWidth = element.clientWidth, + viewHeight = element.clientHeight; + const viewRight = currentWidth + viewWidth; + const viewBottom = currentHeight + viewHeight; + if (lastEdge === -1) { + if (viewBottom >= bottom) { + lastEdge = viewBottom; + } + } else if ((horizontal ? currentWidth : currentHeight) > lastEdge) { + break; + } + if (viewBottom <= top || currentHeight >= bottom || viewRight <= left || currentWidth >= right) { + continue; + } + const hiddenHeight = Math.max(0, top - currentHeight) + Math.max(0, viewBottom - bottom); + const hiddenWidth = Math.max(0, left - currentWidth) + Math.max(0, viewRight - right); + const fractionHeight = (viewHeight - hiddenHeight) / viewHeight, + fractionWidth = (viewWidth - hiddenWidth) / viewWidth; + const percent = fractionHeight * fractionWidth * 100 | 0; + visible.push({ + id: view.id, + x: currentWidth, + y: currentHeight, + view, + percent, + widthPercent: fractionWidth * 100 | 0 + }); + ids.add(view.id); + } + const first = visible[0], + last = visible.at(-1); + if (sortByVisibility) { + visible.sort(function (a, b) { + const pc = a.percent - b.percent; + if (Math.abs(pc) > 0.001) { + return -pc; + } + return a.id - b.id; + }); + } + return { + first, + last, + views: visible, + ids + }; +} +function normalizeWheelEventDirection(evt) { + let delta = Math.hypot(evt.deltaX, evt.deltaY); + const angle = Math.atan2(evt.deltaY, evt.deltaX); + if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) { + delta = -delta; + } + return delta; +} +function normalizeWheelEventDelta(evt) { + const deltaMode = evt.deltaMode; + let delta = normalizeWheelEventDirection(evt); + const MOUSE_PIXELS_PER_LINE = 30; + const MOUSE_LINES_PER_PAGE = 30; + if (deltaMode === WheelEvent.DOM_DELTA_PIXEL) { + delta /= MOUSE_PIXELS_PER_LINE * MOUSE_LINES_PER_PAGE; + } else if (deltaMode === WheelEvent.DOM_DELTA_LINE) { + delta /= MOUSE_LINES_PER_PAGE; + } + return delta; +} +function isValidRotation(angle) { + return Number.isInteger(angle) && angle % 90 === 0; +} +function isValidScrollMode(mode) { + return Number.isInteger(mode) && Object.values(ScrollMode).includes(mode) && mode !== ScrollMode.UNKNOWN; +} +function isValidSpreadMode(mode) { + return Number.isInteger(mode) && Object.values(SpreadMode).includes(mode) && mode !== SpreadMode.UNKNOWN; +} +function isPortraitOrientation(size) { + return size.width <= size.height; +} +const animationStarted = new Promise(function (resolve) { + window.requestAnimationFrame(resolve); +}); +const docStyle = document.documentElement.style; +function clamp(v, min, max) { + return Math.min(Math.max(v, min), max); +} +class ProgressBar { + #classList = null; + #disableAutoFetchTimeout = null; + #percent = 0; + #style = null; + #visible = true; + constructor(bar) { + this.#classList = bar.classList; + this.#style = bar.style; + } + get percent() { + return this.#percent; + } + set percent(val) { + this.#percent = clamp(val, 0, 100); + if (isNaN(val)) { + this.#classList.add("indeterminate"); + return; + } + this.#classList.remove("indeterminate"); + this.#style.setProperty("--progressBar-percent", `${this.#percent}%`); + } + setWidth(viewer) { + if (!viewer) { + return; + } + const container = viewer.parentNode; + const scrollbarWidth = container.offsetWidth - viewer.offsetWidth; + if (scrollbarWidth > 0) { + this.#style.setProperty("--progressBar-end-offset", `${scrollbarWidth}px`); + } + } + setDisableAutoFetch(delay = 5000) { + if (isNaN(this.#percent)) { + return; + } + if (this.#disableAutoFetchTimeout) { + clearTimeout(this.#disableAutoFetchTimeout); + } + this.show(); + this.#disableAutoFetchTimeout = setTimeout(() => { + this.#disableAutoFetchTimeout = null; + this.hide(); + }, delay); + } + hide() { + if (!this.#visible) { + return; + } + this.#visible = false; + this.#classList.add("hidden"); + } + show() { + if (this.#visible) { + return; + } + this.#visible = true; + this.#classList.remove("hidden"); + } +} +function getActiveOrFocusedElement() { + let curRoot = document; + let curActiveOrFocused = curRoot.activeElement || curRoot.querySelector(":focus"); + while (curActiveOrFocused?.shadowRoot) { + curRoot = curActiveOrFocused.shadowRoot; + curActiveOrFocused = curRoot.activeElement || curRoot.querySelector(":focus"); + } + return curActiveOrFocused; +} +function apiPageLayoutToViewerModes(layout) { + let scrollMode = ScrollMode.VERTICAL, + spreadMode = SpreadMode.NONE; + switch (layout) { + case "SinglePage": + scrollMode = ScrollMode.PAGE; + break; + case "OneColumn": + break; + case "TwoPageLeft": + scrollMode = ScrollMode.PAGE; + case "TwoColumnLeft": + spreadMode = SpreadMode.ODD; + break; + case "TwoPageRight": + scrollMode = ScrollMode.PAGE; + case "TwoColumnRight": + spreadMode = SpreadMode.EVEN; + break; + } + return { + scrollMode, + spreadMode + }; +} +function apiPageModeToSidebarView(mode) { + switch (mode) { + case "UseNone": + return SidebarView.NONE; + case "UseThumbs": + return SidebarView.THUMBS; + case "UseOutlines": + return SidebarView.OUTLINE; + case "UseAttachments": + return SidebarView.ATTACHMENTS; + case "UseOC": + return SidebarView.LAYERS; + } + return SidebarView.NONE; +} +function toggleCheckedBtn(button, toggle, view = null) { + button.classList.toggle("toggled", toggle); + button.setAttribute("aria-checked", toggle); + view?.classList.toggle("hidden", !toggle); +} +function toggleExpandedBtn(button, toggle, view = null) { + button.classList.toggle("toggled", toggle); + button.setAttribute("aria-expanded", toggle); + view?.classList.toggle("hidden", !toggle); +} + +;// CONCATENATED MODULE: ./web/app_options.js +const compatibilityParams = Object.create(null); +const OptionKind = { + BROWSER: 0x01, + VIEWER: 0x02, + API: 0x04, + WORKER: 0x08, + PREFERENCE: 0x80 +}; +const defaultOptions = { + canvasMaxAreaInBytes: { + value: -1, + kind: OptionKind.BROWSER + OptionKind.API + }, + isInAutomation: { + value: false, + kind: OptionKind.BROWSER + }, + supportsCaretBrowsingMode: { + value: false, + kind: OptionKind.BROWSER + }, + supportsDocumentFonts: { + value: true, + kind: OptionKind.BROWSER + }, + supportsIntegratedFind: { + value: false, + kind: OptionKind.BROWSER + }, + supportsMouseWheelZoomCtrlKey: { + value: true, + kind: OptionKind.BROWSER + }, + supportsMouseWheelZoomMetaKey: { + value: true, + kind: OptionKind.BROWSER + }, + supportsPinchToZoom: { + value: true, + kind: OptionKind.BROWSER + }, + annotationEditorMode: { + value: 0, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + annotationMode: { + value: 2, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + cursorToolOnLoad: { + value: 0, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + debuggerSrc: { + value: "./debugger.mjs", + kind: OptionKind.VIEWER + }, + defaultZoomDelay: { + value: 400, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + defaultZoomValue: { + value: "", + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + disableHistory: { + value: false, + kind: OptionKind.VIEWER + }, + disablePageLabels: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + enableHighlightEditor: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + enableML: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + enablePermissions: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + enablePrintAutoRotate: { + value: true, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + enableScripting: { + value: true, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + enableStampEditor: { + value: true, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + externalLinkRel: { + value: "noopener noreferrer nofollow", + kind: OptionKind.VIEWER + }, + externalLinkTarget: { + value: 0, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + highlightEditorColors: { + value: "yellow=#FFFF98,green=#53FFBC,blue=#80EBFF,pink=#FFCBE6,red=#FF4F5F", + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + historyUpdateUrl: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + ignoreDestinationZoom: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + imageResourcesPath: { + value: "resource://pdf.js/web/images/", + kind: OptionKind.VIEWER + }, + maxCanvasPixels: { + value: 16777216, + kind: OptionKind.VIEWER + }, + forcePageColors: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + pageColorsBackground: { + value: "Canvas", + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + pageColorsForeground: { + value: "CanvasText", + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + pdfBugEnabled: { + value: false, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + printResolution: { + value: 150, + kind: OptionKind.VIEWER + }, + sidebarViewOnLoad: { + value: -1, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + scrollModeOnLoad: { + value: -1, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + spreadModeOnLoad: { + value: -1, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + textLayerMode: { + value: 1, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + viewOnLoad: { + value: 0, + kind: OptionKind.VIEWER + OptionKind.PREFERENCE + }, + cMapPacked: { + value: true, + kind: OptionKind.API + }, + cMapUrl: { + value: "resource://pdf.js/web/cmaps/", + kind: OptionKind.API + }, + disableAutoFetch: { + value: false, + kind: OptionKind.API + OptionKind.PREFERENCE + }, + disableFontFace: { + value: false, + kind: OptionKind.API + OptionKind.PREFERENCE + }, + disableRange: { + value: false, + kind: OptionKind.API + OptionKind.PREFERENCE + }, + disableStream: { + value: false, + kind: OptionKind.API + OptionKind.PREFERENCE + }, + docBaseUrl: { + value: "", + kind: OptionKind.API + }, + enableXfa: { + value: true, + kind: OptionKind.API + OptionKind.PREFERENCE + }, + fontExtraProperties: { + value: false, + kind: OptionKind.API + }, + isEvalSupported: { + value: true, + kind: OptionKind.API + }, + isOffscreenCanvasSupported: { + value: true, + kind: OptionKind.API + }, + maxImageSize: { + value: -1, + kind: OptionKind.API + }, + pdfBug: { + value: false, + kind: OptionKind.API + }, + standardFontDataUrl: { + value: "resource://pdf.js/web/standard_fonts/", + kind: OptionKind.API + }, + verbosity: { + value: 1, + kind: OptionKind.API + }, + workerPort: { + value: null, + kind: OptionKind.WORKER + }, + workerSrc: { + value: "resource://pdf.js/build/pdf.worker.mjs", + kind: OptionKind.WORKER + } +}; +const userOptions = Object.create(null); +class AppOptions { + constructor() { + throw new Error("Cannot initialize AppOptions."); + } + static get(name) { + const userOption = userOptions[name]; + if (userOption !== undefined) { + return userOption; + } + const defaultOption = defaultOptions[name]; + if (defaultOption !== undefined) { + return compatibilityParams[name] ?? defaultOption.value; + } + return undefined; + } + static getAll(kind = null) { + const options = Object.create(null); + for (const name in defaultOptions) { + const defaultOption = defaultOptions[name]; + if (kind) { + if (!(kind & defaultOption.kind)) { + continue; + } + } + const userOption = userOptions[name]; + options[name] = userOption !== undefined ? userOption : compatibilityParams[name] ?? defaultOption.value; + } + return options; + } + static set(name, value) { + userOptions[name] = value; + } + static setAll(options, init = false) { + for (const name in options) { + userOptions[name] = options[name]; + } + } + static remove(name) { + delete userOptions[name]; + } +} + +;// CONCATENATED MODULE: ./web/pdf_link_service.js + +const DEFAULT_LINK_REL = "noopener noreferrer nofollow"; +const LinkTarget = { + NONE: 0, + SELF: 1, + BLANK: 2, + PARENT: 3, + TOP: 4 +}; +function addLinkAttributes(link, { + url, + target, + rel, + enabled = true +} = {}) { + if (!url || typeof url !== "string") { + throw new Error('A valid "url" parameter must provided.'); + } + if (enabled) { + link.href = link.title = url; + } else { + link.href = ""; + link.title = `Disabled: ${url}`; + link.onclick = () => false; + } + let targetStr = ""; + switch (target) { + case LinkTarget.NONE: + break; + case LinkTarget.SELF: + targetStr = "_self"; + break; + case LinkTarget.BLANK: + targetStr = "_blank"; + break; + case LinkTarget.PARENT: + targetStr = "_parent"; + break; + case LinkTarget.TOP: + targetStr = "_top"; + break; + } + link.target = targetStr; + link.rel = typeof rel === "string" ? rel : DEFAULT_LINK_REL; +} +class PDFLinkService { + #pagesRefCache = new Map(); + constructor({ + eventBus, + externalLinkTarget = null, + externalLinkRel = null, + ignoreDestinationZoom = false + } = {}) { + this.eventBus = eventBus; + this.externalLinkTarget = externalLinkTarget; + this.externalLinkRel = externalLinkRel; + this.externalLinkEnabled = true; + this._ignoreDestinationZoom = ignoreDestinationZoom; + this.baseUrl = null; + this.pdfDocument = null; + this.pdfViewer = null; + this.pdfHistory = null; + } + setDocument(pdfDocument, baseUrl = null) { + this.baseUrl = baseUrl; + this.pdfDocument = pdfDocument; + this.#pagesRefCache.clear(); + } + setViewer(pdfViewer) { + this.pdfViewer = pdfViewer; + } + setHistory(pdfHistory) { + this.pdfHistory = pdfHistory; + } + get pagesCount() { + return this.pdfDocument ? this.pdfDocument.numPages : 0; + } + get page() { + return this.pdfViewer.currentPageNumber; + } + set page(value) { + this.pdfViewer.currentPageNumber = value; + } + get rotation() { + return this.pdfViewer.pagesRotation; + } + set rotation(value) { + this.pdfViewer.pagesRotation = value; + } + get isInPresentationMode() { + return this.pdfViewer.isInPresentationMode; + } + #goToDestinationHelper(rawDest, namedDest = null, explicitDest) { + const destRef = explicitDest[0]; + let pageNumber; + if (typeof destRef === "object" && destRef !== null) { + pageNumber = this._cachedPageNumber(destRef); + if (!pageNumber) { + this.pdfDocument.getPageIndex(destRef).then(pageIndex => { + this.cachePageRef(pageIndex + 1, destRef); + this.#goToDestinationHelper(rawDest, namedDest, explicitDest); + }).catch(() => { + console.error(`PDFLinkService.#goToDestinationHelper: "${destRef}" is not ` + `a valid page reference, for dest="${rawDest}".`); + }); + return; + } + } else if (Number.isInteger(destRef)) { + pageNumber = destRef + 1; + } else { + console.error(`PDFLinkService.#goToDestinationHelper: "${destRef}" is not ` + `a valid destination reference, for dest="${rawDest}".`); + return; + } + if (!pageNumber || pageNumber < 1 || pageNumber > this.pagesCount) { + console.error(`PDFLinkService.#goToDestinationHelper: "${pageNumber}" is not ` + `a valid page number, for dest="${rawDest}".`); + return; + } + if (this.pdfHistory) { + this.pdfHistory.pushCurrentPosition(); + this.pdfHistory.push({ + namedDest, + explicitDest, + pageNumber + }); + } + this.pdfViewer.scrollPageIntoView({ + pageNumber, + destArray: explicitDest, + ignoreDestinationZoom: this._ignoreDestinationZoom + }); + } + async goToDestination(dest) { + if (!this.pdfDocument) { + return; + } + let namedDest, explicitDest; + if (typeof dest === "string") { + namedDest = dest; + explicitDest = await this.pdfDocument.getDestination(dest); + } else { + namedDest = null; + explicitDest = await dest; + } + if (!Array.isArray(explicitDest)) { + console.error(`PDFLinkService.goToDestination: "${explicitDest}" is not ` + `a valid destination array, for dest="${dest}".`); + return; + } + this.#goToDestinationHelper(dest, namedDest, explicitDest); + } + goToPage(val) { + if (!this.pdfDocument) { + return; + } + const pageNumber = typeof val === "string" && this.pdfViewer.pageLabelToPageNumber(val) || val | 0; + if (!(Number.isInteger(pageNumber) && pageNumber > 0 && pageNumber <= this.pagesCount)) { + console.error(`PDFLinkService.goToPage: "${val}" is not a valid page.`); + return; + } + if (this.pdfHistory) { + this.pdfHistory.pushCurrentPosition(); + this.pdfHistory.pushPage(pageNumber); + } + this.pdfViewer.scrollPageIntoView({ + pageNumber + }); + } + addLinkAttributes(link, url, newWindow = false) { + addLinkAttributes(link, { + url, + target: newWindow ? LinkTarget.BLANK : this.externalLinkTarget, + rel: this.externalLinkRel, + enabled: this.externalLinkEnabled + }); + } + getDestinationHash(dest) { + if (typeof dest === "string") { + if (dest.length > 0) { + return this.getAnchorUrl("#" + escape(dest)); + } + } else if (Array.isArray(dest)) { + const str = JSON.stringify(dest); + if (str.length > 0) { + return this.getAnchorUrl("#" + escape(str)); + } + } + return this.getAnchorUrl(""); + } + getAnchorUrl(anchor) { + return this.baseUrl ? this.baseUrl + anchor : anchor; + } + setHash(hash) { + if (!this.pdfDocument) { + return; + } + let pageNumber, dest; + if (hash.includes("=")) { + const params = parseQueryString(hash); + if (params.has("search")) { + const query = params.get("search").replaceAll('"', ""), + phrase = params.get("phrase") === "true"; + this.eventBus.dispatch("findfromurlhash", { + source: this, + query: phrase ? query : query.match(/\S+/g) + }); + } + if (params.has("page")) { + pageNumber = params.get("page") | 0 || 1; + } + if (params.has("zoom")) { + const zoomArgs = params.get("zoom").split(","); + const zoomArg = zoomArgs[0]; + const zoomArgNumber = parseFloat(zoomArg); + if (!zoomArg.includes("Fit")) { + dest = [null, { + name: "XYZ" + }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null, zoomArgs.length > 2 ? zoomArgs[2] | 0 : null, zoomArgNumber ? zoomArgNumber / 100 : zoomArg]; + } else if (zoomArg === "Fit" || zoomArg === "FitB") { + dest = [null, { + name: zoomArg + }]; + } else if (zoomArg === "FitH" || zoomArg === "FitBH" || zoomArg === "FitV" || zoomArg === "FitBV") { + dest = [null, { + name: zoomArg + }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null]; + } else if (zoomArg === "FitR") { + if (zoomArgs.length !== 5) { + console.error('PDFLinkService.setHash: Not enough parameters for "FitR".'); + } else { + dest = [null, { + name: zoomArg + }, zoomArgs[1] | 0, zoomArgs[2] | 0, zoomArgs[3] | 0, zoomArgs[4] | 0]; + } + } else { + console.error(`PDFLinkService.setHash: "${zoomArg}" is not a valid zoom value.`); + } + } + if (dest) { + this.pdfViewer.scrollPageIntoView({ + pageNumber: pageNumber || this.page, + destArray: dest, + allowNegativeOffset: true + }); + } else if (pageNumber) { + this.page = pageNumber; + } + if (params.has("pagemode")) { + this.eventBus.dispatch("pagemode", { + source: this, + mode: params.get("pagemode") + }); + } + if (params.has("nameddest")) { + this.goToDestination(params.get("nameddest")); + } + if (!params.has("filename") || !params.has("filedest")) { + return; + } + hash = params.get("filedest"); + } + dest = unescape(hash); + try { + dest = JSON.parse(dest); + if (!Array.isArray(dest)) { + dest = dest.toString(); + } + } catch {} + if (typeof dest === "string" || PDFLinkService.#isValidExplicitDestination(dest)) { + this.goToDestination(dest); + return; + } + console.error(`PDFLinkService.setHash: "${unescape(hash)}" is not a valid destination.`); + } + executeNamedAction(action) { + switch (action) { + case "GoBack": + this.pdfHistory?.back(); + break; + case "GoForward": + this.pdfHistory?.forward(); + break; + case "NextPage": + this.pdfViewer.nextPage(); + break; + case "PrevPage": + this.pdfViewer.previousPage(); + break; + case "LastPage": + this.page = this.pagesCount; + break; + case "FirstPage": + this.page = 1; + break; + default: + break; + } + this.eventBus.dispatch("namedaction", { + source: this, + action + }); + } + async executeSetOCGState(action) { + const pdfDocument = this.pdfDocument; + const optionalContentConfig = await this.pdfViewer.optionalContentConfigPromise; + if (pdfDocument !== this.pdfDocument) { + return; + } + let operator; + for (const elem of action.state) { + switch (elem) { + case "ON": + case "OFF": + case "Toggle": + operator = elem; + continue; + } + switch (operator) { + case "ON": + optionalContentConfig.setVisibility(elem, true); + break; + case "OFF": + optionalContentConfig.setVisibility(elem, false); + break; + case "Toggle": + const group = optionalContentConfig.getGroup(elem); + if (group) { + optionalContentConfig.setVisibility(elem, !group.visible); + } + break; + } + } + this.pdfViewer.optionalContentConfigPromise = Promise.resolve(optionalContentConfig); + } + cachePageRef(pageNum, pageRef) { + if (!pageRef) { + return; + } + const refStr = pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`; + this.#pagesRefCache.set(refStr, pageNum); + } + _cachedPageNumber(pageRef) { + if (!pageRef) { + return null; + } + const refStr = pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`; + return this.#pagesRefCache.get(refStr) || null; + } + static #isValidExplicitDestination(dest) { + if (!Array.isArray(dest)) { + return false; + } + const destLength = dest.length; + if (destLength < 2) { + return false; + } + const page = dest[0]; + if (!(typeof page === "object" && Number.isInteger(page.num) && Number.isInteger(page.gen)) && !(Number.isInteger(page) && page >= 0)) { + return false; + } + const zoom = dest[1]; + if (!(typeof zoom === "object" && typeof zoom.name === "string")) { + return false; + } + let allowNull = true; + switch (zoom.name) { + case "XYZ": + if (destLength !== 5) { + return false; + } + break; + case "Fit": + case "FitB": + return destLength === 2; + case "FitH": + case "FitBH": + case "FitV": + case "FitBV": + if (destLength !== 3) { + return false; + } + break; + case "FitR": + if (destLength !== 6) { + return false; + } + allowNull = false; + break; + default: + return false; + } + for (let i = 2; i < destLength; i++) { + const param = dest[i]; + if (!(typeof param === "number" || allowNull && param === null)) { + return false; + } + } + return true; + } +} +class SimpleLinkService { + constructor() { + this.externalLinkEnabled = true; + } + get pagesCount() { + return 0; + } + get page() { + return 0; + } + set page(value) {} + get rotation() { + return 0; + } + set rotation(value) {} + get isInPresentationMode() { + return false; + } + async goToDestination(dest) {} + goToPage(val) {} + addLinkAttributes(link, url, newWindow = false) { + addLinkAttributes(link, { + url, + enabled: this.externalLinkEnabled + }); + } + getDestinationHash(dest) { + return "#"; + } + getAnchorUrl(hash) { + return "#"; + } + setHash(hash) {} + executeNamedAction(action) {} + executeSetOCGState(action) {} + cachePageRef(pageNum, pageRef) {} +} + +;// CONCATENATED MODULE: ./web/pdfjs.js +const { + AbortException, + AnnotationEditorLayer, + AnnotationEditorParamsType, + AnnotationEditorType, + AnnotationEditorUIManager, + AnnotationLayer, + AnnotationMode, + build, + CMapCompressionType, + ColorPicker, + createValidAbsoluteUrl, + DOMSVGFactory, + DrawLayer, + FeatureTest, + fetchData, + getDocument, + getFilenameFromUrl, + getPdfFilenameFromUrl, + getXfaPageViewport, + GlobalWorkerOptions, + ImageKind, + InvalidPDFException, + isDataScheme, + isPdfFile, + MissingPDFException, + noContextMenu, + normalizeUnicode, + OPS, + Outliner, + PasswordResponses, + PDFDataRangeTransport, + PDFDateString, + PDFWorker, + PermissionFlag, + PixelsPerInch, + PromiseCapability, + RenderingCancelledException, + renderTextLayer, + setLayerDimensions, + shadow, + UnexpectedResponseException, + updateTextLayer, + Util, + VerbosityLevel, + version, + XfaLayer +} = globalThis.pdfjsLib; + +;// CONCATENATED MODULE: ./web/event_utils.js +const WaitOnType = { + EVENT: "event", + TIMEOUT: "timeout" +}; +function waitOnEventOrTimeout({ + target, + name, + delay = 0 +}) { + return new Promise(function (resolve, reject) { + if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) { + throw new Error("waitOnEventOrTimeout - invalid parameters."); + } + function handler(type) { + if (target instanceof EventBus) { + target._off(name, eventHandler); + } else { + target.removeEventListener(name, eventHandler); + } + if (timeout) { + clearTimeout(timeout); + } + resolve(type); + } + const eventHandler = handler.bind(null, WaitOnType.EVENT); + if (target instanceof EventBus) { + target._on(name, eventHandler); + } else { + target.addEventListener(name, eventHandler); + } + const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT); + const timeout = setTimeout(timeoutHandler, delay); + }); +} +class EventBus { + #listeners = Object.create(null); + on(eventName, listener, options = null) { + this._on(eventName, listener, { + external: true, + once: options?.once + }); + } + off(eventName, listener, options = null) { + this._off(eventName, listener, { + external: true, + once: options?.once + }); + } + dispatch(eventName, data) { + const eventListeners = this.#listeners[eventName]; + if (!eventListeners || eventListeners.length === 0) { + return; + } + let externalListeners; + for (const { + listener, + external, + once + } of eventListeners.slice(0)) { + if (once) { + this._off(eventName, listener); + } + if (external) { + (externalListeners ||= []).push(listener); + continue; + } + listener(data); + } + if (externalListeners) { + for (const listener of externalListeners) { + listener(data); + } + externalListeners = null; + } + } + _on(eventName, listener, options = null) { + const eventListeners = this.#listeners[eventName] ||= []; + eventListeners.push({ + listener, + external: options?.external === true, + once: options?.once === true + }); + } + _off(eventName, listener, options = null) { + const eventListeners = this.#listeners[eventName]; + if (!eventListeners) { + return; + } + for (let i = 0, ii = eventListeners.length; i < ii; i++) { + if (eventListeners[i].listener === listener) { + eventListeners.splice(i, 1); + return; + } + } + } +} +class AutomationEventBus extends EventBus { + dispatch(eventName, data) { + super.dispatch(eventName, data); + const detail = Object.create(null); + if (data) { + for (const key in data) { + const value = data[key]; + if (key === "source") { + if (value === window || value === document) { + return; + } + continue; + } + detail[key] = value; + } + } + const event = new CustomEvent(eventName, { + bubbles: true, + cancelable: true, + detail + }); + document.dispatchEvent(event); + } +} + +;// CONCATENATED MODULE: ./web/external_services.js +class BaseExternalServices { + constructor() { + if (this.constructor === BaseExternalServices) { + throw new Error("Cannot initialize BaseExternalServices."); + } + } + updateFindControlState(data) {} + updateFindMatchesCount(data) {} + initPassiveLoading(callbacks) {} + reportTelemetry(data) {} + async createL10n() { + throw new Error("Not implemented: createL10n"); + } + createScripting() { + throw new Error("Not implemented: createScripting"); + } + updateEditorStates(data) { + throw new Error("Not implemented: updateEditorStates"); + } + async getNimbusExperimentData() {} +} + +;// CONCATENATED MODULE: ./web/preferences.js + +class BasePreferences { + #defaults = Object.freeze({ + annotationEditorMode: 0, + annotationMode: 2, + cursorToolOnLoad: 0, + defaultZoomDelay: 400, + defaultZoomValue: "", + disablePageLabels: false, + enableHighlightEditor: false, + enableML: false, + enablePermissions: false, + enablePrintAutoRotate: true, + enableScripting: true, + enableStampEditor: true, + externalLinkTarget: 0, + highlightEditorColors: "yellow=#FFFF98,green=#53FFBC,blue=#80EBFF,pink=#FFCBE6,red=#FF4F5F", + historyUpdateUrl: false, + ignoreDestinationZoom: false, + forcePageColors: false, + pageColorsBackground: "Canvas", + pageColorsForeground: "CanvasText", + pdfBugEnabled: false, + sidebarViewOnLoad: -1, + scrollModeOnLoad: -1, + spreadModeOnLoad: -1, + textLayerMode: 1, + viewOnLoad: 0, + disableAutoFetch: false, + disableFontFace: false, + disableRange: false, + disableStream: false, + enableXfa: true + }); + #prefs = Object.create(null); + #initializedPromise = null; + constructor() { + if (this.constructor === BasePreferences) { + throw new Error("Cannot initialize BasePreferences."); + } + this.#initializedPromise = this._readFromStorage(this.#defaults).then(({ + browserPrefs, + prefs + }) => { + const BROWSER_PREFS = { + canvasMaxAreaInBytes: -1, + isInAutomation: false, + supportsCaretBrowsingMode: false, + supportsDocumentFonts: true, + supportsIntegratedFind: false, + supportsMouseWheelZoomCtrlKey: true, + supportsMouseWheelZoomMetaKey: true, + supportsPinchToZoom: true + }; + const options = Object.create(null); + for (const [name, defaultVal] of Object.entries(BROWSER_PREFS)) { + const prefVal = browserPrefs?.[name]; + options[name] = typeof prefVal === typeof defaultVal ? prefVal : defaultVal; + } + for (const [name, defaultVal] of Object.entries(this.#defaults)) { + const prefVal = prefs?.[name]; + options[name] = this.#prefs[name] = typeof prefVal === typeof defaultVal ? prefVal : defaultVal; + } + AppOptions.setAll(options, true); + }); + } + async _writeToStorage(prefObj) { + throw new Error("Not implemented: _writeToStorage"); + } + async _readFromStorage(prefObj) { + throw new Error("Not implemented: _readFromStorage"); + } + async reset() { + throw new Error("Please use `about:config` to change preferences."); + } + async set(name, value) { + throw new Error("Please use `about:config` to change preferences."); + } + async get(name) { + await this.#initializedPromise; + const defaultValue = this.#defaults[name]; + if (defaultValue === undefined) { + throw new Error(`Get preference: "${name}" is undefined.`); + } + return this.#prefs[name] ?? defaultValue; + } + get initializedPromise() { + return this.#initializedPromise; + } +} + +;// CONCATENATED MODULE: ./web/l10n.js +class L10n { + #dir; + #lang; + #l10n; + constructor({ + lang, + isRTL + }, l10n = null) { + this.#lang = L10n.#fixupLangCode(lang); + this.#l10n = l10n; + this.#dir = isRTL ?? L10n.#isRTL(this.#lang) ? "rtl" : "ltr"; + } + _setL10n(l10n) { + this.#l10n = l10n; + } + getLanguage() { + return this.#lang; + } + getDirection() { + return this.#dir; + } + async get(ids, args = null, fallback) { + if (Array.isArray(ids)) { + ids = ids.map(id => ({ + id + })); + const messages = await this.#l10n.formatMessages(ids); + return messages.map(message => message.value); + } + const messages = await this.#l10n.formatMessages([{ + id: ids, + args + }]); + return messages?.[0].value || fallback; + } + async translate(element) { + try { + this.#l10n.connectRoot(element); + await this.#l10n.translateRoots(); + } catch {} + } + pause() { + this.#l10n.pauseObserving(); + } + resume() { + this.#l10n.resumeObserving(); + } + static #fixupLangCode(langCode) { + langCode = langCode?.toLowerCase() || "en-us"; + const PARTIAL_LANG_CODES = { + en: "en-us", + es: "es-es", + fy: "fy-nl", + ga: "ga-ie", + gu: "gu-in", + hi: "hi-in", + hy: "hy-am", + nb: "nb-no", + ne: "ne-np", + nn: "nn-no", + pa: "pa-in", + pt: "pt-pt", + sv: "sv-se", + zh: "zh-cn" + }; + return PARTIAL_LANG_CODES[langCode] || langCode; + } + static #isRTL(lang) { + const shortCode = lang.split("-", 1)[0]; + return ["ar", "he", "fa", "ps", "ur"].includes(shortCode); + } +} +const GenericL10n = null; + +;// CONCATENATED MODULE: ./web/firefoxcom.js + + + + + +let viewerApp = { + initialized: false +}; +function initCom(app) { + viewerApp = app; +} +class FirefoxCom { + static requestAsync(action, data) { + return new Promise(resolve => { + this.request(action, data, resolve); + }); + } + static request(action, data, callback = null) { + const request = document.createTextNode(""); + if (callback) { + request.addEventListener("pdf.js.response", event => { + const response = event.detail.response; + event.target.remove(); + callback(response); + }, { + once: true + }); + } + document.documentElement.append(request); + const sender = new CustomEvent("pdf.js.message", { + bubbles: true, + cancelable: false, + detail: { + action, + data, + responseExpected: !!callback + } + }); + request.dispatchEvent(sender); + } +} +class DownloadManager { + #openBlobUrls = new WeakMap(); + downloadUrl(url, filename, options = {}) { + FirefoxCom.request("download", { + originalUrl: url, + filename, + options + }); + } + downloadData(data, filename, contentType) { + const blobUrl = URL.createObjectURL(new Blob([data], { + type: contentType + })); + FirefoxCom.request("download", { + blobUrl, + originalUrl: blobUrl, + filename, + isAttachment: true + }); + } + openOrDownloadData(data, filename, dest = null) { + const isPdfData = isPdfFile(filename); + const contentType = isPdfData ? "application/pdf" : ""; + if (isPdfData) { + let blobUrl = this.#openBlobUrls.get(data); + if (!blobUrl) { + blobUrl = URL.createObjectURL(new Blob([data], { + type: contentType + })); + this.#openBlobUrls.set(data, blobUrl); + } + let viewerUrl = blobUrl + "#filename=" + encodeURIComponent(filename); + if (dest) { + viewerUrl += `&filedest=${escape(dest)}`; + } + try { + window.open(viewerUrl); + return true; + } catch (ex) { + console.error(`openOrDownloadData: ${ex}`); + URL.revokeObjectURL(blobUrl); + this.#openBlobUrls.delete(data); + } + } + this.downloadData(data, filename, contentType); + return false; + } + download(blob, url, filename, options = {}) { + const blobUrl = URL.createObjectURL(blob); + FirefoxCom.request("download", { + blobUrl, + originalUrl: url, + filename, + options + }); + } +} +class Preferences extends BasePreferences { + async _readFromStorage(prefObj) { + return FirefoxCom.requestAsync("getPreferences", prefObj); + } +} +(function listenFindEvents() { + const events = ["find", "findagain", "findhighlightallchange", "findcasesensitivitychange", "findentirewordchange", "findbarclose", "finddiacriticmatchingchange"]; + const findLen = "find".length; + const handleEvent = function ({ + type, + detail + }) { + if (!viewerApp.initialized) { + return; + } + if (type === "findbarclose") { + viewerApp.eventBus.dispatch(type, { + source: window + }); + return; + } + viewerApp.eventBus.dispatch("find", { + source: window, + type: type.substring(findLen), + query: detail.query, + caseSensitive: !!detail.caseSensitive, + entireWord: !!detail.entireWord, + highlightAll: !!detail.highlightAll, + findPrevious: !!detail.findPrevious, + matchDiacritics: !!detail.matchDiacritics + }); + }; + for (const event of events) { + window.addEventListener(event, handleEvent); + } +})(); +(function listenZoomEvents() { + const events = ["zoomin", "zoomout", "zoomreset"]; + const handleEvent = function ({ + type, + detail + }) { + if (!viewerApp.initialized) { + return; + } + if (type === "zoomreset" && viewerApp.pdfViewer.currentScaleValue === DEFAULT_SCALE_VALUE) { + return; + } + viewerApp.eventBus.dispatch(type, { + source: window + }); + }; + for (const event of events) { + window.addEventListener(event, handleEvent); + } +})(); +(function listenSaveEvent() { + const handleEvent = function ({ + type, + detail + }) { + if (!viewerApp.initialized) { + return; + } + viewerApp.eventBus.dispatch("download", { + source: window + }); + }; + window.addEventListener("save", handleEvent); +})(); +(function listenEditingEvent() { + const handleEvent = function ({ + detail + }) { + if (!viewerApp.initialized) { + return; + } + viewerApp.eventBus.dispatch("editingaction", { + source: window, + name: detail.name + }); + }; + window.addEventListener("editingaction", handleEvent); +})(); +{ + (function listenQueryEvents() { + window.addEventListener("pdf.js.query", async ({ + detail: { + queryId + } + }) => { + let result = null; + if (viewerApp.initialized && queryId === "canDownloadInsteadOfPrint") { + result = false; + const { + pdfDocument, + pdfViewer + } = viewerApp; + if (pdfDocument) { + try { + const hasUnchangedAnnotations = pdfDocument.annotationStorage.size === 0; + const hasWillPrint = pdfViewer.enableScripting && !!(await pdfDocument.getJSActions())?.WillPrint; + const hasUnchangedOptionalContent = (await pdfViewer.optionalContentConfigPromise).hasInitialVisibility; + result = hasUnchangedAnnotations && !hasWillPrint && hasUnchangedOptionalContent; + } catch { + console.warn("Unable to check if the document can be downloaded."); + } + } + } + window.dispatchEvent(new CustomEvent("pdf.js.query.answer", { + bubbles: true, + cancelable: false, + detail: { + queryId, + value: result + } + })); + }); + })(); +} +class FirefoxComDataRangeTransport extends PDFDataRangeTransport { + requestDataRange(begin, end) { + FirefoxCom.request("requestDataRange", { + begin, + end + }); + } + abort() { + FirefoxCom.request("abortLoading", null); + } +} +class FirefoxScripting { + static async createSandbox(data) { + const success = await FirefoxCom.requestAsync("createSandbox", data); + if (!success) { + throw new Error("Cannot create sandbox."); + } + } + static async dispatchEventInSandbox(event) { + FirefoxCom.request("dispatchEventInSandbox", event); + } + static async destroySandbox() { + FirefoxCom.request("destroySandbox", null); + } +} +class MLManager { + guess(data) { + return FirefoxCom.requestAsync("mlGuess", data); + } +} +class ExternalServices extends BaseExternalServices { + updateFindControlState(data) { + FirefoxCom.request("updateFindControlState", data); + } + updateFindMatchesCount(data) { + FirefoxCom.request("updateFindMatchesCount", data); + } + initPassiveLoading(callbacks) { + let pdfDataRangeTransport; + window.addEventListener("message", function windowMessage(e) { + if (e.source !== null) { + console.warn("Rejected untrusted message from " + e.origin); + return; + } + const args = e.data; + if (typeof args !== "object" || !("pdfjsLoadAction" in args)) { + return; + } + switch (args.pdfjsLoadAction) { + case "supportsRangedLoading": + if (args.done && !args.data) { + callbacks.onError(); + break; + } + pdfDataRangeTransport = new FirefoxComDataRangeTransport(args.length, args.data, args.done, args.filename); + callbacks.onOpenWithTransport(pdfDataRangeTransport); + break; + case "range": + pdfDataRangeTransport.onDataRange(args.begin, args.chunk); + break; + case "rangeProgress": + pdfDataRangeTransport.onDataProgress(args.loaded); + break; + case "progressiveRead": + pdfDataRangeTransport.onDataProgressiveRead(args.chunk); + pdfDataRangeTransport.onDataProgress(args.loaded, args.total); + break; + case "progressiveDone": + pdfDataRangeTransport?.onDataProgressiveDone(); + break; + case "progress": + callbacks.onProgress(args.loaded, args.total); + break; + case "complete": + if (!args.data) { + callbacks.onError(args.errorCode); + break; + } + callbacks.onOpenWithData(args.data, args.filename); + break; + } + }); + FirefoxCom.request("initPassiveLoading", null); + } + reportTelemetry(data) { + FirefoxCom.request("reportTelemetry", JSON.stringify(data)); + } + updateEditorStates(data) { + FirefoxCom.request("updateEditorStates", data); + } + async createL10n() { + const [localeProperties] = await Promise.all([FirefoxCom.requestAsync("getLocaleProperties", null), document.l10n.ready]); + return new L10n(localeProperties, document.l10n); + } + createScripting() { + return FirefoxScripting; + } + async getNimbusExperimentData() { + const nimbusData = await FirefoxCom.requestAsync("getNimbusExperimentData", null); + return nimbusData && JSON.parse(nimbusData); + } +} + +;// CONCATENATED MODULE: ./web/stubs-geckoview.js +const AltTextManager = null; +const AnnotationEditorParams = null; +const PDFAttachmentViewer = null; +const PDFCursorTools = null; +const PDFDocumentProperties = null; +const PDFFindBar = null; +const PDFLayerViewer = null; +const PDFOutlineViewer = null; +const PDFPresentationMode = null; +const PDFSidebar = null; +const PDFThumbnailViewer = null; +const SecondaryToolbar = null; + +;// CONCATENATED MODULE: ./web/caret_browsing.js +const PRECISION = 1e-1; +class CaretBrowsingMode { + #mainContainer; + #toolBarHeight; + #viewerContainer; + constructor(mainContainer, viewerContainer, toolbarContainer) { + this.#mainContainer = mainContainer; + this.#viewerContainer = viewerContainer; + this.#toolBarHeight = toolbarContainer?.getBoundingClientRect().height ?? 0; + } + #isOnSameLine(rect1, rect2) { + const top1 = rect1.y; + const bot1 = rect1.bottom; + const mid1 = rect1.y + rect1.height / 2; + const top2 = rect2.y; + const bot2 = rect2.bottom; + const mid2 = rect2.y + rect2.height / 2; + return top1 <= mid2 && mid2 <= bot1 || top2 <= mid1 && mid1 <= bot2; + } + #isUnderOver(rect, x, y, isUp) { + const midY = rect.y + rect.height / 2; + return (isUp ? y >= midY : y <= midY) && rect.x - PRECISION <= x && x <= rect.right + PRECISION; + } + #isVisible(rect) { + return rect.top >= this.#toolBarHeight && rect.left >= 0 && rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && rect.right <= (window.innerWidth || document.documentElement.clientWidth); + } + #getCaretPosition(selection, isUp) { + const { + focusNode, + focusOffset + } = selection; + const range = document.createRange(); + range.setStart(focusNode, focusOffset); + range.setEnd(focusNode, focusOffset); + const rect = range.getBoundingClientRect(); + return [rect.x, isUp ? rect.top : rect.bottom]; + } + static #caretPositionFromPoint(x, y) { + return document.caretPositionFromPoint(x, y); + } + #setCaretPositionHelper(selection, caretX, select, element, rect) { + rect ||= element.getBoundingClientRect(); + if (caretX <= rect.x + PRECISION) { + if (select) { + selection.extend(element.firstChild, 0); + } else { + selection.setPosition(element.firstChild, 0); + } + return; + } + if (rect.right - PRECISION <= caretX) { + const { + lastChild + } = element; + if (select) { + selection.extend(lastChild, lastChild.length); + } else { + selection.setPosition(lastChild, lastChild.length); + } + return; + } + const midY = rect.y + rect.height / 2; + let caretPosition = CaretBrowsingMode.#caretPositionFromPoint(caretX, midY); + let parentElement = caretPosition.offsetNode?.parentElement; + if (parentElement && parentElement !== element) { + const elementsAtPoint = document.elementsFromPoint(caretX, midY); + const savedVisibilities = []; + for (const el of elementsAtPoint) { + if (el === element) { + break; + } + const { + style + } = el; + savedVisibilities.push([el, style.visibility]); + style.visibility = "hidden"; + } + caretPosition = CaretBrowsingMode.#caretPositionFromPoint(caretX, midY); + parentElement = caretPosition.offsetNode?.parentElement; + for (const [el, visibility] of savedVisibilities) { + el.style.visibility = visibility; + } + } + if (parentElement !== element) { + if (select) { + selection.extend(element.firstChild, 0); + } else { + selection.setPosition(element.firstChild, 0); + } + return; + } + if (select) { + selection.extend(caretPosition.offsetNode, caretPosition.offset); + } else { + selection.setPosition(caretPosition.offsetNode, caretPosition.offset); + } + } + #setCaretPosition(select, selection, newLineElement, newLineElementRect, caretX) { + if (this.#isVisible(newLineElementRect)) { + this.#setCaretPositionHelper(selection, caretX, select, newLineElement, newLineElementRect); + return; + } + this.#mainContainer.addEventListener("scrollend", this.#setCaretPositionHelper.bind(this, selection, caretX, select, newLineElement, null), { + once: true + }); + newLineElement.scrollIntoView(); + } + #getNodeOnNextPage(textLayer, isUp) { + while (true) { + const page = textLayer.closest(".page"); + const pageNumber = parseInt(page.getAttribute("data-page-number")); + const nextPage = isUp ? pageNumber - 1 : pageNumber + 1; + textLayer = this.#viewerContainer.querySelector(`.page[data-page-number="${nextPage}"] .textLayer`); + if (!textLayer) { + return null; + } + const walker = document.createTreeWalker(textLayer, NodeFilter.SHOW_TEXT); + const node = isUp ? walker.lastChild() : walker.firstChild(); + if (node) { + return node; + } + } + } + moveCaret(isUp, select) { + const selection = document.getSelection(); + if (selection.rangeCount === 0) { + return; + } + const { + focusNode + } = selection; + const focusElement = focusNode.nodeType !== Node.ELEMENT_NODE ? focusNode.parentElement : focusNode; + const root = focusElement.closest(".textLayer"); + if (!root) { + return; + } + const walker = document.createTreeWalker(root, NodeFilter.SHOW_TEXT); + walker.currentNode = focusNode; + const focusRect = focusElement.getBoundingClientRect(); + let newLineElement = null; + const nodeIterator = (isUp ? walker.previousSibling : walker.nextSibling).bind(walker); + while (nodeIterator()) { + const element = walker.currentNode.parentElement; + if (!this.#isOnSameLine(focusRect, element.getBoundingClientRect())) { + newLineElement = element; + break; + } + } + if (!newLineElement) { + const node = this.#getNodeOnNextPage(root, isUp); + if (!node) { + return; + } + if (select) { + const lastNode = (isUp ? walker.firstChild() : walker.lastChild()) || focusNode; + selection.extend(lastNode, isUp ? 0 : lastNode.length); + const range = document.createRange(); + range.setStart(node, isUp ? node.length : 0); + range.setEnd(node, isUp ? node.length : 0); + selection.addRange(range); + return; + } + const [caretX] = this.#getCaretPosition(selection, isUp); + const { + parentElement + } = node; + this.#setCaretPosition(select, selection, parentElement, parentElement.getBoundingClientRect(), caretX); + return; + } + const [caretX, caretY] = this.#getCaretPosition(selection, isUp); + const newLineElementRect = newLineElement.getBoundingClientRect(); + if (this.#isUnderOver(newLineElementRect, caretX, caretY, isUp)) { + this.#setCaretPosition(select, selection, newLineElement, newLineElementRect, caretX); + return; + } + while (nodeIterator()) { + const element = walker.currentNode.parentElement; + const elementRect = element.getBoundingClientRect(); + if (!this.#isOnSameLine(newLineElementRect, elementRect)) { + break; + } + if (this.#isUnderOver(elementRect, caretX, caretY, isUp)) { + this.#setCaretPosition(select, selection, element, elementRect, caretX); + return; + } + } + this.#setCaretPosition(select, selection, newLineElement, newLineElementRect, caretX); + } +} + +;// CONCATENATED MODULE: ./web/overlay_manager.js +class OverlayManager { + #overlays = new WeakMap(); + #active = null; + get active() { + return this.#active; + } + async register(dialog, canForceClose = false) { + if (typeof dialog !== "object") { + throw new Error("Not enough parameters."); + } else if (this.#overlays.has(dialog)) { + throw new Error("The overlay is already registered."); + } + this.#overlays.set(dialog, { + canForceClose + }); + dialog.addEventListener("cancel", evt => { + this.#active = null; + }); + } + async open(dialog) { + if (!this.#overlays.has(dialog)) { + throw new Error("The overlay does not exist."); + } else if (this.#active) { + if (this.#active === dialog) { + throw new Error("The overlay is already active."); + } else if (this.#overlays.get(dialog).canForceClose) { + await this.close(); + } else { + throw new Error("Another overlay is currently active."); + } + } + this.#active = dialog; + dialog.showModal(); + } + async close(dialog = this.#active) { + if (!this.#overlays.has(dialog)) { + throw new Error("The overlay does not exist."); + } else if (!this.#active) { + throw new Error("The overlay is currently not active."); + } else if (this.#active !== dialog) { + throw new Error("Another overlay is currently active."); + } + dialog.close(); + this.#active = null; + } +} + +;// CONCATENATED MODULE: ./web/password_prompt.js + +class PasswordPrompt { + #activeCapability = null; + #updateCallback = null; + #reason = null; + constructor(options, overlayManager, isViewerEmbedded = false) { + this.dialog = options.dialog; + this.label = options.label; + this.input = options.input; + this.submitButton = options.submitButton; + this.cancelButton = options.cancelButton; + this.overlayManager = overlayManager; + this._isViewerEmbedded = isViewerEmbedded; + this.submitButton.addEventListener("click", this.#verify.bind(this)); + this.cancelButton.addEventListener("click", this.close.bind(this)); + this.input.addEventListener("keydown", e => { + if (e.keyCode === 13) { + this.#verify(); + } + }); + this.overlayManager.register(this.dialog, true); + this.dialog.addEventListener("close", this.#cancel.bind(this)); + } + async open() { + if (this.#activeCapability) { + await this.#activeCapability.promise; + } + this.#activeCapability = new PromiseCapability(); + try { + await this.overlayManager.open(this.dialog); + } catch (ex) { + this.#activeCapability.resolve(); + throw ex; + } + const passwordIncorrect = this.#reason === PasswordResponses.INCORRECT_PASSWORD; + if (!this._isViewerEmbedded || passwordIncorrect) { + this.input.focus(); + } + this.label.setAttribute("data-l10n-id", `pdfjs-password-${passwordIncorrect ? "invalid" : "label"}`); + } + async close() { + if (this.overlayManager.active === this.dialog) { + this.overlayManager.close(this.dialog); + } + } + #verify() { + const password = this.input.value; + if (password?.length > 0) { + this.#invokeCallback(password); + } + } + #cancel() { + this.#invokeCallback(new Error("PasswordPrompt cancelled.")); + this.#activeCapability.resolve(); + } + #invokeCallback(password) { + if (!this.#updateCallback) { + return; + } + this.close(); + this.input.value = ""; + this.#updateCallback(password); + this.#updateCallback = null; + } + async setUpdateCallback(updateCallback, reason) { + if (this.#activeCapability) { + await this.#activeCapability.promise; + } + this.#updateCallback = updateCallback; + this.#reason = reason; + } +} + +;// CONCATENATED MODULE: ./web/pdf_find_utils.js +const CharacterType = { + SPACE: 0, + ALPHA_LETTER: 1, + PUNCT: 2, + HAN_LETTER: 3, + KATAKANA_LETTER: 4, + HIRAGANA_LETTER: 5, + HALFWIDTH_KATAKANA_LETTER: 6, + THAI_LETTER: 7 +}; +function isAlphabeticalScript(charCode) { + return charCode < 0x2e80; +} +function isAscii(charCode) { + return (charCode & 0xff80) === 0; +} +function isAsciiAlpha(charCode) { + return charCode >= 0x61 && charCode <= 0x7a || charCode >= 0x41 && charCode <= 0x5a; +} +function isAsciiDigit(charCode) { + return charCode >= 0x30 && charCode <= 0x39; +} +function isAsciiSpace(charCode) { + return charCode === 0x20 || charCode === 0x09 || charCode === 0x0d || charCode === 0x0a; +} +function isHan(charCode) { + return charCode >= 0x3400 && charCode <= 0x9fff || charCode >= 0xf900 && charCode <= 0xfaff; +} +function isKatakana(charCode) { + return charCode >= 0x30a0 && charCode <= 0x30ff; +} +function isHiragana(charCode) { + return charCode >= 0x3040 && charCode <= 0x309f; +} +function isHalfwidthKatakana(charCode) { + return charCode >= 0xff60 && charCode <= 0xff9f; +} +function isThai(charCode) { + return (charCode & 0xff80) === 0x0e00; +} +function getCharacterType(charCode) { + if (isAlphabeticalScript(charCode)) { + if (isAscii(charCode)) { + if (isAsciiSpace(charCode)) { + return CharacterType.SPACE; + } else if (isAsciiAlpha(charCode) || isAsciiDigit(charCode) || charCode === 0x5f) { + return CharacterType.ALPHA_LETTER; + } + return CharacterType.PUNCT; + } else if (isThai(charCode)) { + return CharacterType.THAI_LETTER; + } else if (charCode === 0xa0) { + return CharacterType.SPACE; + } + return CharacterType.ALPHA_LETTER; + } + if (isHan(charCode)) { + return CharacterType.HAN_LETTER; + } else if (isKatakana(charCode)) { + return CharacterType.KATAKANA_LETTER; + } else if (isHiragana(charCode)) { + return CharacterType.HIRAGANA_LETTER; + } else if (isHalfwidthKatakana(charCode)) { + return CharacterType.HALFWIDTH_KATAKANA_LETTER; + } + return CharacterType.ALPHA_LETTER; +} +let NormalizeWithNFKC; +function getNormalizeWithNFKC() { + NormalizeWithNFKC ||= ` ¨ª¯²-µ¸-º¼-¾IJ-ijĿ-ŀʼnſDŽ-njDZ-dzʰ-ʸ˘-˝ˠ-ˤʹͺ;΄-΅·ϐ-ϖϰ-ϲϴ-ϵϹևٵ-ٸक़-य़ড়-ঢ়য়ਲ਼ਸ਼ਖ਼-ਜ਼ਫ਼ଡ଼-ଢ଼ำຳໜ-ໝ༌གྷཌྷདྷབྷཛྷཀྵჼᴬ-ᴮᴰ-ᴺᴼ-ᵍᵏ-ᵪᵸᶛ-ᶿẚ-ẛάέήίόύώΆ᾽-῁ΈΉ῍-῏ΐΊ῝-῟ΰΎ῭-`ΌΏ´-῾ - ‑‗․-… ″-‴‶-‷‼‾⁇-⁉⁗ ⁰-ⁱ⁴-₎ₐ-ₜ₨℀-℃℅-ℇ℉-ℓℕ-№ℙ-ℝ℠-™ℤΩℨK-ℭℯ-ℱℳ-ℹ℻-⅀ⅅ-ⅉ⅐-ⅿ↉∬-∭∯-∰〈-〉①-⓪⨌⩴-⩶⫝̸ⱼ-ⱽⵯ⺟⻳⼀-⿕ 〶〸-〺゛-゜ゟヿㄱ-ㆎ㆒-㆟㈀-㈞㈠-㉇㉐-㉾㊀-㏿ꚜ-ꚝꝰꟲ-ꟴꟸ-ꟹꭜ-ꭟꭩ豈-嗀塚晴凞-羽蘒諸逸-都飯-舘並-龎ff-stﬓ-ﬗיִײַ-זּטּ-לּמּנּ-סּףּ-פּצּ-ﮱﯓ-ﴽﵐ-ﶏﶒ-ﷇﷰ-﷼︐-︙︰-﹄﹇-﹒﹔-﹦﹨-﹫ﹰ-ﹲﹴﹶ-ﻼ！-ﾾￂ-ￇￊ-ￏￒ-ￗￚ-ￜ￠-￦`; + return NormalizeWithNFKC; +} + +;// CONCATENATED MODULE: ./web/pdf_find_controller.js + + + +const FindState = { + FOUND: 0, + NOT_FOUND: 1, + WRAPPED: 2, + PENDING: 3 +}; +const FIND_TIMEOUT = 250; +const MATCH_SCROLL_OFFSET_TOP = -50; +const MATCH_SCROLL_OFFSET_LEFT = -400; +const CHARACTERS_TO_NORMALIZE = { + "\u2010": "-", + "\u2018": "'", + "\u2019": "'", + "\u201A": "'", + "\u201B": "'", + "\u201C": '"', + "\u201D": '"', + "\u201E": '"', + "\u201F": '"', + "\u00BC": "1/4", + "\u00BD": "1/2", + "\u00BE": "3/4" +}; +const DIACRITICS_EXCEPTION = new Set([0x3099, 0x309a, 0x094d, 0x09cd, 0x0a4d, 0x0acd, 0x0b4d, 0x0bcd, 0x0c4d, 0x0ccd, 0x0d3b, 0x0d3c, 0x0d4d, 0x0dca, 0x0e3a, 0x0eba, 0x0f84, 0x1039, 0x103a, 0x1714, 0x1734, 0x17d2, 0x1a60, 0x1b44, 0x1baa, 0x1bab, 0x1bf2, 0x1bf3, 0x2d7f, 0xa806, 0xa82c, 0xa8c4, 0xa953, 0xa9c0, 0xaaf6, 0xabed, 0x0c56, 0x0f71, 0x0f72, 0x0f7a, 0x0f7b, 0x0f7c, 0x0f7d, 0x0f80, 0x0f74]); +let DIACRITICS_EXCEPTION_STR; +const DIACRITICS_REG_EXP = /\p{M}+/gu; +const SPECIAL_CHARS_REG_EXP = /([.*+?^${}()|[\]\\])|(\p{P})|(\s+)|(\p{M})|(\p{L})/gu; +const NOT_DIACRITIC_FROM_END_REG_EXP = /([^\p{M}])\p{M}*$/u; +const NOT_DIACRITIC_FROM_START_REG_EXP = /^\p{M}*([^\p{M}])/u; +const SYLLABLES_REG_EXP = /[\uAC00-\uD7AF\uFA6C\uFACF-\uFAD1\uFAD5-\uFAD7]+/g; +const SYLLABLES_LENGTHS = new Map(); +const FIRST_CHAR_SYLLABLES_REG_EXP = "[\\u1100-\\u1112\\ud7a4-\\ud7af\\ud84a\\ud84c\\ud850\\ud854\\ud857\\ud85f]"; +const NFKC_CHARS_TO_NORMALIZE = new Map(); +let noSyllablesRegExp = null; +let withSyllablesRegExp = null; +function normalize(text) { + const syllablePositions = []; + let m; + while ((m = SYLLABLES_REG_EXP.exec(text)) !== null) { + let { + index + } = m; + for (const char of m[0]) { + let len = SYLLABLES_LENGTHS.get(char); + if (!len) { + len = char.normalize("NFD").length; + SYLLABLES_LENGTHS.set(char, len); + } + syllablePositions.push([len, index++]); + } + } + let normalizationRegex; + if (syllablePositions.length === 0 && noSyllablesRegExp) { + normalizationRegex = noSyllablesRegExp; + } else if (syllablePositions.length > 0 && withSyllablesRegExp) { + normalizationRegex = withSyllablesRegExp; + } else { + const replace = Object.keys(CHARACTERS_TO_NORMALIZE).join(""); + const toNormalizeWithNFKC = getNormalizeWithNFKC(); + const CJK = "(?:\\p{Ideographic}|[\u3040-\u30FF])"; + const HKDiacritics = "(?:\u3099|\u309A)"; + const regexp = `([${replace}])|([${toNormalizeWithNFKC}])|(${HKDiacritics}\\n)|(\\p{M}+(?:-\\n)?)|(\\S-\\n)|(${CJK}\\n)|(\\n)`; + if (syllablePositions.length === 0) { + normalizationRegex = noSyllablesRegExp = new RegExp(regexp + "|(\\u0000)", "gum"); + } else { + normalizationRegex = withSyllablesRegExp = new RegExp(regexp + `|(${FIRST_CHAR_SYLLABLES_REG_EXP})`, "gum"); + } + } + const rawDiacriticsPositions = []; + while ((m = DIACRITICS_REG_EXP.exec(text)) !== null) { + rawDiacriticsPositions.push([m[0].length, m.index]); + } + let normalized = text.normalize("NFD"); + const positions = [[0, 0]]; + let rawDiacriticsIndex = 0; + let syllableIndex = 0; + let shift = 0; + let shiftOrigin = 0; + let eol = 0; + let hasDiacritics = false; + normalized = normalized.replace(normalizationRegex, (match, p1, p2, p3, p4, p5, p6, p7, p8, i) => { + i -= shiftOrigin; + if (p1) { + const replacement = CHARACTERS_TO_NORMALIZE[p1]; + const jj = replacement.length; + for (let j = 1; j < jj; j++) { + positions.push([i - shift + j, shift - j]); + } + shift -= jj - 1; + return replacement; + } + if (p2) { + let replacement = NFKC_CHARS_TO_NORMALIZE.get(p2); + if (!replacement) { + replacement = p2.normalize("NFKC"); + NFKC_CHARS_TO_NORMALIZE.set(p2, replacement); + } + const jj = replacement.length; + for (let j = 1; j < jj; j++) { + positions.push([i - shift + j, shift - j]); + } + shift -= jj - 1; + return replacement; + } + if (p3) { + hasDiacritics = true; + if (i + eol === rawDiacriticsPositions[rawDiacriticsIndex]?.[1]) { + ++rawDiacriticsIndex; + } else { + positions.push([i - 1 - shift + 1, shift - 1]); + shift -= 1; + shiftOrigin += 1; + } + positions.push([i - shift + 1, shift]); + shiftOrigin += 1; + eol += 1; + return p3.charAt(0); + } + if (p4) { + const hasTrailingDashEOL = p4.endsWith("\n"); + const len = hasTrailingDashEOL ? p4.length - 2 : p4.length; + hasDiacritics = true; + let jj = len; + if (i + eol === rawDiacriticsPositions[rawDiacriticsIndex]?.[1]) { + jj -= rawDiacriticsPositions[rawDiacriticsIndex][0]; + ++rawDiacriticsIndex; + } + for (let j = 1; j <= jj; j++) { + positions.push([i - 1 - shift + j, shift - j]); + } + shift -= jj; + shiftOrigin += jj; + if (hasTrailingDashEOL) { + i += len - 1; + positions.push([i - shift + 1, 1 + shift]); + shift += 1; + shiftOrigin += 1; + eol += 1; + return p4.slice(0, len); + } + return p4; + } + if (p5) { + const len = p5.length - 2; + positions.push([i - shift + len, 1 + shift]); + shift += 1; + shiftOrigin += 1; + eol += 1; + return p5.slice(0, -2); + } + if (p6) { + const len = p6.length - 1; + positions.push([i - shift + len, shift]); + shiftOrigin += 1; + eol += 1; + return p6.slice(0, -1); + } + if (p7) { + positions.push([i - shift + 1, shift - 1]); + shift -= 1; + shiftOrigin += 1; + eol += 1; + return " "; + } + if (i + eol === syllablePositions[syllableIndex]?.[1]) { + const newCharLen = syllablePositions[syllableIndex][0] - 1; + ++syllableIndex; + for (let j = 1; j <= newCharLen; j++) { + positions.push([i - (shift - j), shift - j]); + } + shift -= newCharLen; + shiftOrigin += newCharLen; + } + return p8; + }); + positions.push([normalized.length, shift]); + return [normalized, positions, hasDiacritics]; +} +function getOriginalIndex(diffs, pos, len) { + if (!diffs) { + return [pos, len]; + } + const start = pos; + const end = pos + len - 1; + let i = binarySearchFirstItem(diffs, x => x[0] >= start); + if (diffs[i][0] > start) { + --i; + } + let j = binarySearchFirstItem(diffs, x => x[0] >= end, i); + if (diffs[j][0] > end) { + --j; + } + const oldStart = start + diffs[i][1]; + const oldEnd = end + diffs[j][1]; + const oldLen = oldEnd + 1 - oldStart; + return [oldStart, oldLen]; +} +class PDFFindController { + #state = null; + #updateMatchesCountOnProgress = true; + #visitedPagesCount = 0; + constructor({ + linkService, + eventBus, + updateMatchesCountOnProgress = true + }) { + this._linkService = linkService; + this._eventBus = eventBus; + this.#updateMatchesCountOnProgress = updateMatchesCountOnProgress; + this.onIsPageVisible = null; + this.#reset(); + eventBus._on("find", this.#onFind.bind(this)); + eventBus._on("findbarclose", this.#onFindBarClose.bind(this)); + } + get highlightMatches() { + return this._highlightMatches; + } + get pageMatches() { + return this._pageMatches; + } + get pageMatchesLength() { + return this._pageMatchesLength; + } + get selected() { + return this._selected; + } + get state() { + return this.#state; + } + setDocument(pdfDocument) { + if (this._pdfDocument) { + this.#reset(); + } + if (!pdfDocument) { + return; + } + this._pdfDocument = pdfDocument; + this._firstPageCapability.resolve(); + } + #onFind(state) { + if (!state) { + return; + } + const pdfDocument = this._pdfDocument; + const { + type + } = state; + if (this.#state === null || this.#shouldDirtyMatch(state)) { + this._dirtyMatch = true; + } + this.#state = state; + if (type !== "highlightallchange") { + this.#updateUIState(FindState.PENDING); + } + this._firstPageCapability.promise.then(() => { + if (!this._pdfDocument || pdfDocument && this._pdfDocument !== pdfDocument) { + return; + } + this.#extractText(); + const findbarClosed = !this._highlightMatches; + const pendingTimeout = !!this._findTimeout; + if (this._findTimeout) { + clearTimeout(this._findTimeout); + this._findTimeout = null; + } + if (!type) { + this._findTimeout = setTimeout(() => { + this.#nextMatch(); + this._findTimeout = null; + }, FIND_TIMEOUT); + } else if (this._dirtyMatch) { + this.#nextMatch(); + } else if (type === "again") { + this.#nextMatch(); + if (findbarClosed && this.#state.highlightAll) { + this.#updateAllPages(); + } + } else if (type === "highlightallchange") { + if (pendingTimeout) { + this.#nextMatch(); + } else { + this._highlightMatches = true; + } + this.#updateAllPages(); + } else { + this.#nextMatch(); + } + }); + } + scrollMatchIntoView({ + element = null, + selectedLeft = 0, + pageIndex = -1, + matchIndex = -1 + }) { + if (!this._scrollMatches || !element) { + return; + } else if (matchIndex === -1 || matchIndex !== this._selected.matchIdx) { + return; + } else if (pageIndex === -1 || pageIndex !== this._selected.pageIdx) { + return; + } + this._scrollMatches = false; + const spot = { + top: MATCH_SCROLL_OFFSET_TOP, + left: selectedLeft + MATCH_SCROLL_OFFSET_LEFT + }; + scrollIntoView(element, spot, true); + } + #reset() { + this._highlightMatches = false; + this._scrollMatches = false; + this._pdfDocument = null; + this._pageMatches = []; + this._pageMatchesLength = []; + this.#visitedPagesCount = 0; + this.#state = null; + this._selected = { + pageIdx: -1, + matchIdx: -1 + }; + this._offset = { + pageIdx: null, + matchIdx: null, + wrapped: false + }; + this._extractTextPromises = []; + this._pageContents = []; + this._pageDiffs = []; + this._hasDiacritics = []; + this._matchesCountTotal = 0; + this._pagesToSearch = null; + this._pendingFindMatches = new Set(); + this._resumePageIdx = null; + this._dirtyMatch = false; + clearTimeout(this._findTimeout); + this._findTimeout = null; + this._firstPageCapability = new PromiseCapability(); + } + get #query() { + const { + query + } = this.#state; + if (typeof query === "string") { + if (query !== this._rawQuery) { + this._rawQuery = query; + [this._normalizedQuery] = normalize(query); + } + return this._normalizedQuery; + } + return (query || []).filter(q => !!q).map(q => normalize(q)[0]); + } + #shouldDirtyMatch(state) { + const newQuery = state.query, + prevQuery = this.#state.query; + const newType = typeof newQuery, + prevType = typeof prevQuery; + if (newType !== prevType) { + return true; + } + if (newType === "string") { + if (newQuery !== prevQuery) { + return true; + } + } else if (JSON.stringify(newQuery) !== JSON.stringify(prevQuery)) { + return true; + } + switch (state.type) { + case "again": + const pageNumber = this._selected.pageIdx + 1; + const linkService = this._linkService; + return pageNumber >= 1 && pageNumber <= linkService.pagesCount && pageNumber !== linkService.page && !(this.onIsPageVisible?.(pageNumber) ?? true); + case "highlightallchange": + return false; + } + return true; + } + #isEntireWord(content, startIdx, length) { + let match = content.slice(0, startIdx).match(NOT_DIACRITIC_FROM_END_REG_EXP); + if (match) { + const first = content.charCodeAt(startIdx); + const limit = match[1].charCodeAt(0); + if (getCharacterType(first) === getCharacterType(limit)) { + return false; + } + } + match = content.slice(startIdx + length).match(NOT_DIACRITIC_FROM_START_REG_EXP); + if (match) { + const last = content.charCodeAt(startIdx + length - 1); + const limit = match[1].charCodeAt(0); + if (getCharacterType(last) === getCharacterType(limit)) { + return false; + } + } + return true; + } + #calculateRegExpMatch(query, entireWord, pageIndex, pageContent) { + const matches = this._pageMatches[pageIndex] = []; + const matchesLength = this._pageMatchesLength[pageIndex] = []; + if (!query) { + return; + } + const diffs = this._pageDiffs[pageIndex]; + let match; + while ((match = query.exec(pageContent)) !== null) { + if (entireWord && !this.#isEntireWord(pageContent, match.index, match[0].length)) { + continue; + } + const [matchPos, matchLen] = getOriginalIndex(diffs, match.index, match[0].length); + if (matchLen) { + matches.push(matchPos); + matchesLength.push(matchLen); + } + } + } + #convertToRegExpString(query, hasDiacritics) { + const { + matchDiacritics + } = this.#state; + let isUnicode = false; + query = query.replaceAll(SPECIAL_CHARS_REG_EXP, (match, p1, p2, p3, p4, p5) => { + if (p1) { + return `[ ]*\\${p1}[ ]*`; + } + if (p2) { + return `[ ]*${p2}[ ]*`; + } + if (p3) { + return "[ ]+"; + } + if (matchDiacritics) { + return p4 || p5; + } + if (p4) { + return DIACRITICS_EXCEPTION.has(p4.charCodeAt(0)) ? p4 : ""; + } + if (hasDiacritics) { + isUnicode = true; + return `${p5}\\p{M}*`; + } + return p5; + }); + const trailingSpaces = "[ ]*"; + if (query.endsWith(trailingSpaces)) { + query = query.slice(0, query.length - trailingSpaces.length); + } + if (matchDiacritics) { + if (hasDiacritics) { + DIACRITICS_EXCEPTION_STR ||= String.fromCharCode(...DIACRITICS_EXCEPTION); + isUnicode = true; + query = `${query}(?=[${DIACRITICS_EXCEPTION_STR}]|[^\\p{M}]|$)`; + } + } + return [isUnicode, query]; + } + #calculateMatch(pageIndex) { + let query = this.#query; + if (query.length === 0) { + return; + } + const { + caseSensitive, + entireWord + } = this.#state; + const pageContent = this._pageContents[pageIndex]; + const hasDiacritics = this._hasDiacritics[pageIndex]; + let isUnicode = false; + if (typeof query === "string") { + [isUnicode, query] = this.#convertToRegExpString(query, hasDiacritics); + } else { + query = query.sort().reverse().map(q => { + const [isUnicodePart, queryPart] = this.#convertToRegExpString(q, hasDiacritics); + isUnicode ||= isUnicodePart; + return `(${queryPart})`; + }).join("|"); + } + const flags = `g${isUnicode ? "u" : ""}${caseSensitive ? "" : "i"}`; + query = query ? new RegExp(query, flags) : null; + this.#calculateRegExpMatch(query, entireWord, pageIndex, pageContent); + if (this.#state.highlightAll) { + this.#updatePage(pageIndex); + } + if (this._resumePageIdx === pageIndex) { + this._resumePageIdx = null; + this.#nextPageMatch(); + } + const pageMatchesCount = this._pageMatches[pageIndex].length; + this._matchesCountTotal += pageMatchesCount; + if (this.#updateMatchesCountOnProgress) { + if (pageMatchesCount > 0) { + this.#updateUIResultsCount(); + } + } else if (++this.#visitedPagesCount === this._linkService.pagesCount) { + this.#updateUIResultsCount(); + } + } + #extractText() { + if (this._extractTextPromises.length > 0) { + return; + } + let promise = Promise.resolve(); + const textOptions = { + disableNormalization: true + }; + for (let i = 0, ii = this._linkService.pagesCount; i < ii; i++) { + const extractTextCapability = new PromiseCapability(); + this._extractTextPromises[i] = extractTextCapability.promise; + promise = promise.then(() => { + return this._pdfDocument.getPage(i + 1).then(pdfPage => pdfPage.getTextContent(textOptions)).then(textContent => { + const strBuf = []; + for (const textItem of textContent.items) { + strBuf.push(textItem.str); + if (textItem.hasEOL) { + strBuf.push("\n"); + } + } + [this._pageContents[i], this._pageDiffs[i], this._hasDiacritics[i]] = normalize(strBuf.join("")); + extractTextCapability.resolve(); + }, reason => { + console.error(`Unable to get text content for page ${i + 1}`, reason); + this._pageContents[i] = ""; + this._pageDiffs[i] = null; + this._hasDiacritics[i] = false; + extractTextCapability.resolve(); + }); + }); + } + } + #updatePage(index) { + if (this._scrollMatches && this._selected.pageIdx === index) { + this._linkService.page = index + 1; + } + this._eventBus.dispatch("updatetextlayermatches", { + source: this, + pageIndex: index + }); + } + #updateAllPages() { + this._eventBus.dispatch("updatetextlayermatches", { + source: this, + pageIndex: -1 + }); + } + #nextMatch() { + const previous = this.#state.findPrevious; + const currentPageIndex = this._linkService.page - 1; + const numPages = this._linkService.pagesCount; + this._highlightMatches = true; + if (this._dirtyMatch) { + this._dirtyMatch = false; + this._selected.pageIdx = this._selected.matchIdx = -1; + this._offset.pageIdx = currentPageIndex; + this._offset.matchIdx = null; + this._offset.wrapped = false; + this._resumePageIdx = null; + this._pageMatches.length = 0; + this._pageMatchesLength.length = 0; + this.#visitedPagesCount = 0; + this._matchesCountTotal = 0; + this.#updateAllPages(); + for (let i = 0; i < numPages; i++) { + if (this._pendingFindMatches.has(i)) { + continue; + } + this._pendingFindMatches.add(i); + this._extractTextPromises[i].then(() => { + this._pendingFindMatches.delete(i); + this.#calculateMatch(i); + }); + } + } + const query = this.#query; + if (query.length === 0) { + this.#updateUIState(FindState.FOUND); + return; + } + if (this._resumePageIdx) { + return; + } + const offset = this._offset; + this._pagesToSearch = numPages; + if (offset.matchIdx !== null) { + const numPageMatches = this._pageMatches[offset.pageIdx].length; + if (!previous && offset.matchIdx + 1 < numPageMatches || previous && offset.matchIdx > 0) { + offset.matchIdx = previous ? offset.matchIdx - 1 : offset.matchIdx + 1; + this.#updateMatch(true); + return; + } + this.#advanceOffsetPage(previous); + } + this.#nextPageMatch(); + } + #matchesReady(matches) { + const offset = this._offset; + const numMatches = matches.length; + const previous = this.#state.findPrevious; + if (numMatches) { + offset.matchIdx = previous ? numMatches - 1 : 0; + this.#updateMatch(true); + return true; + } + this.#advanceOffsetPage(previous); + if (offset.wrapped) { + offset.matchIdx = null; + if (this._pagesToSearch < 0) { + this.#updateMatch(false); + return true; + } + } + return false; + } + #nextPageMatch() { + if (this._resumePageIdx !== null) { + console.error("There can only be one pending page."); + } + let matches = null; + do { + const pageIdx = this._offset.pageIdx; + matches = this._pageMatches[pageIdx]; + if (!matches) { + this._resumePageIdx = pageIdx; + break; + } + } while (!this.#matchesReady(matches)); + } + #advanceOffsetPage(previous) { + const offset = this._offset; + const numPages = this._linkService.pagesCount; + offset.pageIdx = previous ? offset.pageIdx - 1 : offset.pageIdx + 1; + offset.matchIdx = null; + this._pagesToSearch--; + if (offset.pageIdx >= numPages || offset.pageIdx < 0) { + offset.pageIdx = previous ? numPages - 1 : 0; + offset.wrapped = true; + } + } + #updateMatch(found = false) { + let state = FindState.NOT_FOUND; + const wrapped = this._offset.wrapped; + this._offset.wrapped = false; + if (found) { + const previousPage = this._selected.pageIdx; + this._selected.pageIdx = this._offset.pageIdx; + this._selected.matchIdx = this._offset.matchIdx; + state = wrapped ? FindState.WRAPPED : FindState.FOUND; + if (previousPage !== -1 && previousPage !== this._selected.pageIdx) { + this.#updatePage(previousPage); + } + } + this.#updateUIState(state, this.#state.findPrevious); + if (this._selected.pageIdx !== -1) { + this._scrollMatches = true; + this.#updatePage(this._selected.pageIdx); + } + } + #onFindBarClose(evt) { + const pdfDocument = this._pdfDocument; + this._firstPageCapability.promise.then(() => { + if (!this._pdfDocument || pdfDocument && this._pdfDocument !== pdfDocument) { + return; + } + if (this._findTimeout) { + clearTimeout(this._findTimeout); + this._findTimeout = null; + } + if (this._resumePageIdx) { + this._resumePageIdx = null; + this._dirtyMatch = true; + } + this.#updateUIState(FindState.FOUND); + this._highlightMatches = false; + this.#updateAllPages(); + }); + } + #requestMatchesCount() { + const { + pageIdx, + matchIdx + } = this._selected; + let current = 0, + total = this._matchesCountTotal; + if (matchIdx !== -1) { + for (let i = 0; i < pageIdx; i++) { + current += this._pageMatches[i]?.length || 0; + } + current += matchIdx + 1; + } + if (current < 1 || current > total) { + current = total = 0; + } + return { + current, + total + }; + } + #updateUIResultsCount() { + this._eventBus.dispatch("updatefindmatchescount", { + source: this, + matchesCount: this.#requestMatchesCount() + }); + } + #updateUIState(state, previous = false) { + if (!this.#updateMatchesCountOnProgress && (this.#visitedPagesCount !== this._linkService.pagesCount || state === FindState.PENDING)) { + return; + } + this._eventBus.dispatch("updatefindcontrolstate", { + source: this, + state, + previous, + matchesCount: this.#requestMatchesCount(), + rawQuery: this.#state?.query ?? null + }); + } +} + +;// CONCATENATED MODULE: ./web/pdf_history.js + + +const HASH_CHANGE_TIMEOUT = 1000; +const POSITION_UPDATED_THRESHOLD = 50; +const UPDATE_VIEWAREA_TIMEOUT = 1000; +function getCurrentHash() { + return document.location.hash; +} +class PDFHistory { + constructor({ + linkService, + eventBus + }) { + this.linkService = linkService; + this.eventBus = eventBus; + this._initialized = false; + this._fingerprint = ""; + this.reset(); + this._boundEvents = null; + this.eventBus._on("pagesinit", () => { + this._isPagesLoaded = false; + this.eventBus._on("pagesloaded", evt => { + this._isPagesLoaded = !!evt.pagesCount; + }, { + once: true + }); + }); + } + initialize({ + fingerprint, + resetHistory = false, + updateUrl = false + }) { + if (!fingerprint || typeof fingerprint !== "string") { + console.error('PDFHistory.initialize: The "fingerprint" must be a non-empty string.'); + return; + } + if (this._initialized) { + this.reset(); + } + const reInitialized = this._fingerprint !== "" && this._fingerprint !== fingerprint; + this._fingerprint = fingerprint; + this._updateUrl = updateUrl === true; + this._initialized = true; + this._bindEvents(); + const state = window.history.state; + this._popStateInProgress = false; + this._blockHashChange = 0; + this._currentHash = getCurrentHash(); + this._numPositionUpdates = 0; + this._uid = this._maxUid = 0; + this._destination = null; + this._position = null; + if (!this._isValidState(state, true) || resetHistory) { + const { + hash, + page, + rotation + } = this._parseCurrentHash(true); + if (!hash || reInitialized || resetHistory) { + this._pushOrReplaceState(null, true); + return; + } + this._pushOrReplaceState({ + hash, + page, + rotation + }, true); + return; + } + const destination = state.destination; + this._updateInternalState(destination, state.uid, true); + if (destination.rotation !== undefined) { + this._initialRotation = destination.rotation; + } + if (destination.dest) { + this._initialBookmark = JSON.stringify(destination.dest); + this._destination.page = null; + } else if (destination.hash) { + this._initialBookmark = destination.hash; + } else if (destination.page) { + this._initialBookmark = `page=${destination.page}`; + } + } + reset() { + if (this._initialized) { + this._pageHide(); + this._initialized = false; + this._unbindEvents(); + } + if (this._updateViewareaTimeout) { + clearTimeout(this._updateViewareaTimeout); + this._updateViewareaTimeout = null; + } + this._initialBookmark = null; + this._initialRotation = null; + } + push({ + namedDest = null, + explicitDest, + pageNumber + }) { + if (!this._initialized) { + return; + } + if (namedDest && typeof namedDest !== "string") { + console.error("PDFHistory.push: " + `"${namedDest}" is not a valid namedDest parameter.`); + return; + } else if (!Array.isArray(explicitDest)) { + console.error("PDFHistory.push: " + `"${explicitDest}" is not a valid explicitDest parameter.`); + return; + } else if (!this._isValidPage(pageNumber)) { + if (pageNumber !== null || this._destination) { + console.error("PDFHistory.push: " + `"${pageNumber}" is not a valid pageNumber parameter.`); + return; + } + } + const hash = namedDest || JSON.stringify(explicitDest); + if (!hash) { + return; + } + let forceReplace = false; + if (this._destination && (isDestHashesEqual(this._destination.hash, hash) || isDestArraysEqual(this._destination.dest, explicitDest))) { + if (this._destination.page) { + return; + } + forceReplace = true; + } + if (this._popStateInProgress && !forceReplace) { + return; + } + this._pushOrReplaceState({ + dest: explicitDest, + hash, + page: pageNumber, + rotation: this.linkService.rotation + }, forceReplace); + if (!this._popStateInProgress) { + this._popStateInProgress = true; + Promise.resolve().then(() => { + this._popStateInProgress = false; + }); + } + } + pushPage(pageNumber) { + if (!this._initialized) { + return; + } + if (!this._isValidPage(pageNumber)) { + console.error(`PDFHistory.pushPage: "${pageNumber}" is not a valid page number.`); + return; + } + if (this._destination?.page === pageNumber) { + return; + } + if (this._popStateInProgress) { + return; + } + this._pushOrReplaceState({ + dest: null, + hash: `page=${pageNumber}`, + page: pageNumber, + rotation: this.linkService.rotation + }); + if (!this._popStateInProgress) { + this._popStateInProgress = true; + Promise.resolve().then(() => { + this._popStateInProgress = false; + }); + } + } + pushCurrentPosition() { + if (!this._initialized || this._popStateInProgress) { + return; + } + this._tryPushCurrentPosition(); + } + back() { + if (!this._initialized || this._popStateInProgress) { + return; + } + const state = window.history.state; + if (this._isValidState(state) && state.uid > 0) { + window.history.back(); + } + } + forward() { + if (!this._initialized || this._popStateInProgress) { + return; + } + const state = window.history.state; + if (this._isValidState(state) && state.uid < this._maxUid) { + window.history.forward(); + } + } + get popStateInProgress() { + return this._initialized && (this._popStateInProgress || this._blockHashChange > 0); + } + get initialBookmark() { + return this._initialized ? this._initialBookmark : null; + } + get initialRotation() { + return this._initialized ? this._initialRotation : null; + } + _pushOrReplaceState(destination, forceReplace = false) { + const shouldReplace = forceReplace || !this._destination; + const newState = { + fingerprint: this._fingerprint, + uid: shouldReplace ? this._uid : this._uid + 1, + destination + }; + this._updateInternalState(destination, newState.uid); + let newUrl; + if (this._updateUrl && destination?.hash) { + const baseUrl = document.location.href.split("#", 1)[0]; + if (!baseUrl.startsWith("file://")) { + newUrl = `${baseUrl}#${destination.hash}`; + } + } + if (shouldReplace) { + window.history.replaceState(newState, "", newUrl); + } else { + window.history.pushState(newState, "", newUrl); + } + } + _tryPushCurrentPosition(temporary = false) { + if (!this._position) { + return; + } + let position = this._position; + if (temporary) { + position = Object.assign(Object.create(null), this._position); + position.temporary = true; + } + if (!this._destination) { + this._pushOrReplaceState(position); + return; + } + if (this._destination.temporary) { + this._pushOrReplaceState(position, true); + return; + } + if (this._destination.hash === position.hash) { + return; + } + if (!this._destination.page && (POSITION_UPDATED_THRESHOLD <= 0 || this._numPositionUpdates <= POSITION_UPDATED_THRESHOLD)) { + return; + } + let forceReplace = false; + if (this._destination.page >= position.first && this._destination.page <= position.page) { + if (this._destination.dest !== undefined || !this._destination.first) { + return; + } + forceReplace = true; + } + this._pushOrReplaceState(position, forceReplace); + } + _isValidPage(val) { + return Number.isInteger(val) && val > 0 && val <= this.linkService.pagesCount; + } + _isValidState(state, checkReload = false) { + if (!state) { + return false; + } + if (state.fingerprint !== this._fingerprint) { + if (checkReload) { + if (typeof state.fingerprint !== "string" || state.fingerprint.length !== this._fingerprint.length) { + return false; + } + const [perfEntry] = performance.getEntriesByType("navigation"); + if (perfEntry?.type !== "reload") { + return false; + } + } else { + return false; + } + } + if (!Number.isInteger(state.uid) || state.uid < 0) { + return false; + } + if (state.destination === null || typeof state.destination !== "object") { + return false; + } + return true; + } + _updateInternalState(destination, uid, removeTemporary = false) { + if (this._updateViewareaTimeout) { + clearTimeout(this._updateViewareaTimeout); + this._updateViewareaTimeout = null; + } + if (removeTemporary && destination?.temporary) { + delete destination.temporary; + } + this._destination = destination; + this._uid = uid; + this._maxUid = Math.max(this._maxUid, uid); + this._numPositionUpdates = 0; + } + _parseCurrentHash(checkNameddest = false) { + const hash = unescape(getCurrentHash()).substring(1); + const params = parseQueryString(hash); + const nameddest = params.get("nameddest") || ""; + let page = params.get("page") | 0; + if (!this._isValidPage(page) || checkNameddest && nameddest.length > 0) { + page = null; + } + return { + hash, + page, + rotation: this.linkService.rotation + }; + } + _updateViewarea({ + location + }) { + if (this._updateViewareaTimeout) { + clearTimeout(this._updateViewareaTimeout); + this._updateViewareaTimeout = null; + } + this._position = { + hash: location.pdfOpenParams.substring(1), + page: this.linkService.page, + first: location.pageNumber, + rotation: location.rotation + }; + if (this._popStateInProgress) { + return; + } + if (POSITION_UPDATED_THRESHOLD > 0 && this._isPagesLoaded && this._destination && !this._destination.page) { + this._numPositionUpdates++; + } + if (UPDATE_VIEWAREA_TIMEOUT > 0) { + this._updateViewareaTimeout = setTimeout(() => { + if (!this._popStateInProgress) { + this._tryPushCurrentPosition(true); + } + this._updateViewareaTimeout = null; + }, UPDATE_VIEWAREA_TIMEOUT); + } + } + _popState({ + state + }) { + const newHash = getCurrentHash(), + hashChanged = this._currentHash !== newHash; + this._currentHash = newHash; + if (!state) { + this._uid++; + const { + hash, + page, + rotation + } = this._parseCurrentHash(); + this._pushOrReplaceState({ + hash, + page, + rotation + }, true); + return; + } + if (!this._isValidState(state)) { + return; + } + this._popStateInProgress = true; + if (hashChanged) { + this._blockHashChange++; + waitOnEventOrTimeout({ + target: window, + name: "hashchange", + delay: HASH_CHANGE_TIMEOUT + }).then(() => { + this._blockHashChange--; + }); + } + const destination = state.destination; + this._updateInternalState(destination, state.uid, true); + if (isValidRotation(destination.rotation)) { + this.linkService.rotation = destination.rotation; + } + if (destination.dest) { + this.linkService.goToDestination(destination.dest); + } else if (destination.hash) { + this.linkService.setHash(destination.hash); + } else if (destination.page) { + this.linkService.page = destination.page; + } + Promise.resolve().then(() => { + this._popStateInProgress = false; + }); + } + _pageHide() { + if (!this._destination || this._destination.temporary) { + this._tryPushCurrentPosition(); + } + } + _bindEvents() { + if (this._boundEvents) { + return; + } + this._boundEvents = { + updateViewarea: this._updateViewarea.bind(this), + popState: this._popState.bind(this), + pageHide: this._pageHide.bind(this) + }; + this.eventBus._on("updateviewarea", this._boundEvents.updateViewarea); + window.addEventListener("popstate", this._boundEvents.popState); + window.addEventListener("pagehide", this._boundEvents.pageHide); + } + _unbindEvents() { + if (!this._boundEvents) { + return; + } + this.eventBus._off("updateviewarea", this._boundEvents.updateViewarea); + window.removeEventListener("popstate", this._boundEvents.popState); + window.removeEventListener("pagehide", this._boundEvents.pageHide); + this._boundEvents = null; + } +} +function isDestHashesEqual(destHash, pushHash) { + if (typeof destHash !== "string" || typeof pushHash !== "string") { + return false; + } + if (destHash === pushHash) { + return true; + } + const nameddest = parseQueryString(destHash).get("nameddest"); + if (nameddest === pushHash) { + return true; + } + return false; +} +function isDestArraysEqual(firstDest, secondDest) { + function isEntryEqual(first, second) { + if (typeof first !== typeof second) { + return false; + } + if (Array.isArray(first) || Array.isArray(second)) { + return false; + } + if (first !== null && typeof first === "object" && second !== null) { + if (Object.keys(first).length !== Object.keys(second).length) { + return false; + } + for (const key in first) { + if (!isEntryEqual(first[key], second[key])) { + return false; + } + } + return true; + } + return first === second || Number.isNaN(first) && Number.isNaN(second); + } + if (!(Array.isArray(firstDest) && Array.isArray(secondDest))) { + return false; + } + if (firstDest.length !== secondDest.length) { + return false; + } + for (let i = 0, ii = firstDest.length; i < ii; i++) { + if (!isEntryEqual(firstDest[i], secondDest[i])) { + return false; + } + } + return true; +} + +;// CONCATENATED MODULE: ./web/xfa_layer_builder.js + +class XfaLayerBuilder { + constructor({ + pdfPage, + annotationStorage = null, + linkService, + xfaHtml = null + }) { + this.pdfPage = pdfPage; + this.annotationStorage = annotationStorage; + this.linkService = linkService; + this.xfaHtml = xfaHtml; + this.div = null; + this._cancelled = false; + } + async render(viewport, intent = "display") { + if (intent === "print") { + const parameters = { + viewport: viewport.clone({ + dontFlip: true + }), + div: this.div, + xfaHtml: this.xfaHtml, + annotationStorage: this.annotationStorage, + linkService: this.linkService, + intent + }; + this.div = document.createElement("div"); + parameters.div = this.div; + return XfaLayer.render(parameters); + } + const xfaHtml = await this.pdfPage.getXfa(); + if (this._cancelled || !xfaHtml) { + return { + textDivs: [] + }; + } + const parameters = { + viewport: viewport.clone({ + dontFlip: true + }), + div: this.div, + xfaHtml, + annotationStorage: this.annotationStorage, + linkService: this.linkService, + intent + }; + if (this.div) { + return XfaLayer.update(parameters); + } + this.div = document.createElement("div"); + parameters.div = this.div; + return XfaLayer.render(parameters); + } + cancel() { + this._cancelled = true; + } + hide() { + if (!this.div) { + return; + } + this.div.hidden = true; + } +} + +;// CONCATENATED MODULE: ./web/print_utils.js + + + +function getXfaHtmlForPrinting(printContainer, pdfDocument) { + const xfaHtml = pdfDocument.allXfaHtml; + const linkService = new SimpleLinkService(); + const scale = Math.round(PixelsPerInch.PDF_TO_CSS_UNITS * 100) / 100; + for (const xfaPage of xfaHtml.children) { + const page = document.createElement("div"); + page.className = "xfaPrintedPage"; + printContainer.append(page); + const builder = new XfaLayerBuilder({ + pdfPage: null, + annotationStorage: pdfDocument.annotationStorage, + linkService, + xfaHtml: xfaPage + }); + const viewport = getXfaPageViewport(xfaPage, { + scale + }); + builder.render(viewport, "print"); + page.append(builder.div); + } +} + +;// CONCATENATED MODULE: ./web/firefox_print_service.js + + +function composePage(pdfDocument, pageNumber, size, printContainer, printResolution, optionalContentConfigPromise, printAnnotationStoragePromise) { + const canvas = document.createElement("canvas"); + const PRINT_UNITS = printResolution / PixelsPerInch.PDF; + canvas.width = Math.floor(size.width * PRINT_UNITS); + canvas.height = Math.floor(size.height * PRINT_UNITS); + const canvasWrapper = document.createElement("div"); + canvasWrapper.className = "printedPage"; + canvasWrapper.append(canvas); + printContainer.append(canvasWrapper); + let currentRenderTask = null; + canvas.mozPrintCallback = function (obj) { + const ctx = obj.context; + ctx.save(); + ctx.fillStyle = "rgb(255, 255, 255)"; + ctx.fillRect(0, 0, canvas.width, canvas.height); + ctx.restore(); + let thisRenderTask = null; + Promise.all([pdfDocument.getPage(pageNumber), printAnnotationStoragePromise]).then(function ([pdfPage, printAnnotationStorage]) { + if (currentRenderTask) { + currentRenderTask.cancel(); + currentRenderTask = null; + } + const renderContext = { + canvasContext: ctx, + transform: [PRINT_UNITS, 0, 0, PRINT_UNITS, 0, 0], + viewport: pdfPage.getViewport({ + scale: 1, + rotation: size.rotation + }), + intent: "print", + annotationMode: AnnotationMode.ENABLE_STORAGE, + optionalContentConfigPromise, + printAnnotationStorage + }; + currentRenderTask = thisRenderTask = pdfPage.render(renderContext); + return thisRenderTask.promise; + }).then(function () { + if (currentRenderTask === thisRenderTask) { + currentRenderTask = null; + } + obj.done(); + }, function (reason) { + if (!(reason instanceof RenderingCancelledException)) { + console.error(reason); + } + if (currentRenderTask === thisRenderTask) { + currentRenderTask.cancel(); + currentRenderTask = null; + } + if ("abort" in obj) { + obj.abort(); + } else { + obj.done(); + } + }); + }; +} +class FirefoxPrintService { + constructor({ + pdfDocument, + pagesOverview, + printContainer, + printResolution, + optionalContentConfigPromise = null, + printAnnotationStoragePromise = null + }) { + this.pdfDocument = pdfDocument; + this.pagesOverview = pagesOverview; + this.printContainer = printContainer; + this._printResolution = printResolution || 150; + this._optionalContentConfigPromise = optionalContentConfigPromise || pdfDocument.getOptionalContentConfig(); + this._printAnnotationStoragePromise = printAnnotationStoragePromise || Promise.resolve(); + } + layout() { + const { + pdfDocument, + pagesOverview, + printContainer, + _printResolution, + _optionalContentConfigPromise, + _printAnnotationStoragePromise + } = this; + const body = document.querySelector("body"); + body.setAttribute("data-pdfjsprinting", true); + const { + width, + height + } = this.pagesOverview[0]; + const hasEqualPageSizes = this.pagesOverview.every(size => size.width === width && size.height === height); + if (!hasEqualPageSizes) { + console.warn("Not all pages have the same size. The printed result may be incorrect!"); + } + this.pageStyleSheet = document.createElement("style"); + this.pageStyleSheet.textContent = `@page { size: ${width}pt ${height}pt;}`; + body.append(this.pageStyleSheet); + if (pdfDocument.isPureXfa) { + getXfaHtmlForPrinting(printContainer, pdfDocument); + return; + } + for (let i = 0, ii = pagesOverview.length; i < ii; ++i) { + composePage(pdfDocument, i + 1, pagesOverview[i], printContainer, _printResolution, _optionalContentConfigPromise, _printAnnotationStoragePromise); + } + } + destroy() { + this.printContainer.textContent = ""; + const body = document.querySelector("body"); + body.removeAttribute("data-pdfjsprinting"); + if (this.pageStyleSheet) { + this.pageStyleSheet.remove(); + this.pageStyleSheet = null; + } + } +} +class PDFPrintServiceFactory { + static get supportsPrinting() { + const canvas = document.createElement("canvas"); + return shadow(this, "supportsPrinting", "mozPrintCallback" in canvas); + } + static createPrintService(params) { + return new FirefoxPrintService(params); + } +} + +;// CONCATENATED MODULE: ./web/pdf_rendering_queue.js + + +const CLEANUP_TIMEOUT = 30000; +class PDFRenderingQueue { + constructor() { + this.pdfViewer = null; + this.pdfThumbnailViewer = null; + this.onIdle = null; + this.highestPriorityPage = null; + this.idleTimeout = null; + this.printing = false; + this.isThumbnailViewEnabled = false; + } + setViewer(pdfViewer) { + this.pdfViewer = pdfViewer; + } + setThumbnailViewer(pdfThumbnailViewer) { + this.pdfThumbnailViewer = pdfThumbnailViewer; + } + isHighestPriority(view) { + return this.highestPriorityPage === view.renderingId; + } + renderHighestPriority(currentlyVisiblePages) { + if (this.idleTimeout) { + clearTimeout(this.idleTimeout); + this.idleTimeout = null; + } + if (this.pdfViewer.forceRendering(currentlyVisiblePages)) { + return; + } + if (this.isThumbnailViewEnabled && this.pdfThumbnailViewer?.forceRendering()) { + return; + } + if (this.printing) { + return; + } + if (this.onIdle) { + this.idleTimeout = setTimeout(this.onIdle.bind(this), CLEANUP_TIMEOUT); + } + } + getHighestPriority(visible, views, scrolledDown, preRenderExtra = false) { + const visibleViews = visible.views, + numVisible = visibleViews.length; + if (numVisible === 0) { + return null; + } + for (let i = 0; i < numVisible; i++) { + const view = visibleViews[i].view; + if (!this.isViewFinished(view)) { + return view; + } + } + const firstId = visible.first.id, + lastId = visible.last.id; + if (lastId - firstId + 1 > numVisible) { + const visibleIds = visible.ids; + for (let i = 1, ii = lastId - firstId; i < ii; i++) { + const holeId = scrolledDown ? firstId + i : lastId - i; + if (visibleIds.has(holeId)) { + continue; + } + const holeView = views[holeId - 1]; + if (!this.isViewFinished(holeView)) { + return holeView; + } + } + } + let preRenderIndex = scrolledDown ? lastId : firstId - 2; + let preRenderView = views[preRenderIndex]; + if (preRenderView && !this.isViewFinished(preRenderView)) { + return preRenderView; + } + if (preRenderExtra) { + preRenderIndex += scrolledDown ? 1 : -1; + preRenderView = views[preRenderIndex]; + if (preRenderView && !this.isViewFinished(preRenderView)) { + return preRenderView; + } + } + return null; + } + isViewFinished(view) { + return view.renderingState === RenderingStates.FINISHED; + } + renderView(view) { + switch (view.renderingState) { + case RenderingStates.FINISHED: + return false; + case RenderingStates.PAUSED: + this.highestPriorityPage = view.renderingId; + view.resume(); + break; + case RenderingStates.RUNNING: + this.highestPriorityPage = view.renderingId; + break; + case RenderingStates.INITIAL: + this.highestPriorityPage = view.renderingId; + view.draw().finally(() => { + this.renderHighestPriority(); + }).catch(reason => { + if (reason instanceof RenderingCancelledException) { + return; + } + console.error(`renderView: "${reason}"`); + }); + break; + } + return true; + } +} + +;// CONCATENATED MODULE: ./web/pdf_scripting_manager.js + + +class PDFScriptingManager { + #closeCapability = null; + #destroyCapability = null; + #docProperties = null; + #eventBus = null; + #externalServices = null; + #pdfDocument = null; + #pdfViewer = null; + #ready = false; + #scripting = null; + #willPrintCapability = null; + constructor({ + eventBus, + externalServices = null, + docProperties = null + }) { + this.#eventBus = eventBus; + this.#externalServices = externalServices; + this.#docProperties = docProperties; + } + setViewer(pdfViewer) { + this.#pdfViewer = pdfViewer; + } + async setDocument(pdfDocument) { + if (this.#pdfDocument) { + await this.#destroyScripting(); + } + this.#pdfDocument = pdfDocument; + if (!pdfDocument) { + return; + } + const [objects, calculationOrder, docActions] = await Promise.all([pdfDocument.getFieldObjects(), pdfDocument.getCalculationOrderIds(), pdfDocument.getJSActions()]); + if (!objects && !docActions) { + await this.#destroyScripting(); + return; + } + if (pdfDocument !== this.#pdfDocument) { + return; + } + try { + this.#scripting = this.#initScripting(); + } catch (error) { + console.error(`setDocument: "${error.message}".`); + await this.#destroyScripting(); + return; + } + this._internalEvents.set("updatefromsandbox", event => { + if (event?.source === window) { + this.#updateFromSandbox(event.detail); + } + }); + this._internalEvents.set("dispatcheventinsandbox", event => { + this.#scripting?.dispatchEventInSandbox(event.detail); + }); + this._internalEvents.set("pagechanging", ({ + pageNumber, + previous + }) => { + if (pageNumber === previous) { + return; + } + this.#dispatchPageClose(previous); + this.#dispatchPageOpen(pageNumber); + }); + this._internalEvents.set("pagerendered", ({ + pageNumber + }) => { + if (!this._pageOpenPending.has(pageNumber)) { + return; + } + if (pageNumber !== this.#pdfViewer.currentPageNumber) { + return; + } + this.#dispatchPageOpen(pageNumber); + }); + this._internalEvents.set("pagesdestroy", async () => { + await this.#dispatchPageClose(this.#pdfViewer.currentPageNumber); + await this.#scripting?.dispatchEventInSandbox({ + id: "doc", + name: "WillClose" + }); + this.#closeCapability?.resolve(); + }); + for (const [name, listener] of this._internalEvents) { + this.#eventBus._on(name, listener); + } + try { + const docProperties = await this.#docProperties(pdfDocument); + if (pdfDocument !== this.#pdfDocument) { + return; + } + await this.#scripting.createSandbox({ + objects, + calculationOrder, + appInfo: { + platform: navigator.platform, + language: navigator.language + }, + docInfo: { + ...docProperties, + actions: docActions + } + }); + this.#eventBus.dispatch("sandboxcreated", { + source: this + }); + } catch (error) { + console.error(`setDocument: "${error.message}".`); + await this.#destroyScripting(); + return; + } + await this.#scripting?.dispatchEventInSandbox({ + id: "doc", + name: "Open" + }); + await this.#dispatchPageOpen(this.#pdfViewer.currentPageNumber, true); + Promise.resolve().then(() => { + if (pdfDocument === this.#pdfDocument) { + this.#ready = true; + } + }); + } + async dispatchWillSave() { + return this.#scripting?.dispatchEventInSandbox({ + id: "doc", + name: "WillSave" + }); + } + async dispatchDidSave() { + return this.#scripting?.dispatchEventInSandbox({ + id: "doc", + name: "DidSave" + }); + } + async dispatchWillPrint() { + if (!this.#scripting) { + return; + } + await this.#willPrintCapability?.promise; + this.#willPrintCapability = new PromiseCapability(); + try { + await this.#scripting.dispatchEventInSandbox({ + id: "doc", + name: "WillPrint" + }); + } catch (ex) { + this.#willPrintCapability.resolve(); + this.#willPrintCapability = null; + throw ex; + } + await this.#willPrintCapability.promise; + } + async dispatchDidPrint() { + return this.#scripting?.dispatchEventInSandbox({ + id: "doc", + name: "DidPrint" + }); + } + get destroyPromise() { + return this.#destroyCapability?.promise || null; + } + get ready() { + return this.#ready; + } + get _internalEvents() { + return shadow(this, "_internalEvents", new Map()); + } + get _pageOpenPending() { + return shadow(this, "_pageOpenPending", new Set()); + } + get _visitedPages() { + return shadow(this, "_visitedPages", new Map()); + } + async #updateFromSandbox(detail) { + const pdfViewer = this.#pdfViewer; + const isInPresentationMode = pdfViewer.isInPresentationMode || pdfViewer.isChangingPresentationMode; + const { + id, + siblings, + command, + value + } = detail; + if (!id) { + switch (command) { + case "clear": + console.clear(); + break; + case "error": + console.error(value); + break; + case "layout": + if (!isInPresentationMode) { + const modes = apiPageLayoutToViewerModes(value); + pdfViewer.spreadMode = modes.spreadMode; + } + break; + case "page-num": + pdfViewer.currentPageNumber = value + 1; + break; + case "print": + await pdfViewer.pagesPromise; + this.#eventBus.dispatch("print", { + source: this + }); + break; + case "println": + console.log(value); + break; + case "zoom": + if (!isInPresentationMode) { + pdfViewer.currentScaleValue = value; + } + break; + case "SaveAs": + this.#eventBus.dispatch("download", { + source: this + }); + break; + case "FirstPage": + pdfViewer.currentPageNumber = 1; + break; + case "LastPage": + pdfViewer.currentPageNumber = pdfViewer.pagesCount; + break; + case "NextPage": + pdfViewer.nextPage(); + break; + case "PrevPage": + pdfViewer.previousPage(); + break; + case "ZoomViewIn": + if (!isInPresentationMode) { + pdfViewer.increaseScale(); + } + break; + case "ZoomViewOut": + if (!isInPresentationMode) { + pdfViewer.decreaseScale(); + } + break; + case "WillPrintFinished": + this.#willPrintCapability?.resolve(); + this.#willPrintCapability = null; + break; + } + return; + } + if (isInPresentationMode && detail.focus) { + return; + } + delete detail.id; + delete detail.siblings; + const ids = siblings ? [id, ...siblings] : [id]; + for (const elementId of ids) { + const element = document.querySelector(`[data-element-id="${elementId}"]`); + if (element) { + element.dispatchEvent(new CustomEvent("updatefromsandbox", { + detail + })); + } else { + this.#pdfDocument?.annotationStorage.setValue(elementId, detail); + } + } + } + async #dispatchPageOpen(pageNumber, initialize = false) { + const pdfDocument = this.#pdfDocument, + visitedPages = this._visitedPages; + if (initialize) { + this.#closeCapability = new PromiseCapability(); + } + if (!this.#closeCapability) { + return; + } + const pageView = this.#pdfViewer.getPageView(pageNumber - 1); + if (pageView?.renderingState !== RenderingStates.FINISHED) { + this._pageOpenPending.add(pageNumber); + return; + } + this._pageOpenPending.delete(pageNumber); + const actionsPromise = (async () => { + const actions = await (!visitedPages.has(pageNumber) ? pageView.pdfPage?.getJSActions() : null); + if (pdfDocument !== this.#pdfDocument) { + return; + } + await this.#scripting?.dispatchEventInSandbox({ + id: "page", + name: "PageOpen", + pageNumber, + actions + }); + })(); + visitedPages.set(pageNumber, actionsPromise); + } + async #dispatchPageClose(pageNumber) { + const pdfDocument = this.#pdfDocument, + visitedPages = this._visitedPages; + if (!this.#closeCapability) { + return; + } + if (this._pageOpenPending.has(pageNumber)) { + return; + } + const actionsPromise = visitedPages.get(pageNumber); + if (!actionsPromise) { + return; + } + visitedPages.set(pageNumber, null); + await actionsPromise; + if (pdfDocument !== this.#pdfDocument) { + return; + } + await this.#scripting?.dispatchEventInSandbox({ + id: "page", + name: "PageClose", + pageNumber + }); + } + #initScripting() { + this.#destroyCapability = new PromiseCapability(); + if (this.#scripting) { + throw new Error("#initScripting: Scripting already exists."); + } + return this.#externalServices.createScripting(); + } + async #destroyScripting() { + if (!this.#scripting) { + this.#pdfDocument = null; + this.#destroyCapability?.resolve(); + return; + } + if (this.#closeCapability) { + await Promise.race([this.#closeCapability.promise, new Promise(resolve => { + setTimeout(resolve, 1000); + })]).catch(() => {}); + this.#closeCapability = null; + } + this.#pdfDocument = null; + try { + await this.#scripting.destroySandbox(); + } catch {} + this.#willPrintCapability?.reject(new Error("Scripting destroyed.")); + this.#willPrintCapability = null; + for (const [name, listener] of this._internalEvents) { + this.#eventBus._off(name, listener); + } + this._internalEvents.clear(); + this._pageOpenPending.clear(); + this._visitedPages.clear(); + this.#scripting = null; + this.#ready = false; + this.#destroyCapability?.resolve(); + } +} + +;// CONCATENATED MODULE: ./web/annotation_editor_layer_builder.js + + +class AnnotationEditorLayerBuilder { + #annotationLayer = null; + #drawLayer = null; + #textLayer = null; + #uiManager; + constructor(options) { + this.pageDiv = options.pageDiv; + this.pdfPage = options.pdfPage; + this.accessibilityManager = options.accessibilityManager; + this.l10n = options.l10n; + this.annotationEditorLayer = null; + this.div = null; + this._cancelled = false; + this.#uiManager = options.uiManager; + this.#annotationLayer = options.annotationLayer || null; + this.#textLayer = options.textLayer || null; + this.#drawLayer = options.drawLayer || null; + } + async render(viewport, intent = "display") { + if (intent !== "display") { + return; + } + if (this._cancelled) { + return; + } + const clonedViewport = viewport.clone({ + dontFlip: true + }); + if (this.div) { + this.annotationEditorLayer.update({ + viewport: clonedViewport + }); + this.show(); + return; + } + const div = this.div = document.createElement("div"); + div.className = "annotationEditorLayer"; + div.tabIndex = 0; + div.hidden = true; + div.dir = this.#uiManager.direction; + this.pageDiv.append(div); + this.annotationEditorLayer = new AnnotationEditorLayer({ + uiManager: this.#uiManager, + div, + accessibilityManager: this.accessibilityManager, + pageIndex: this.pdfPage.pageNumber - 1, + l10n: this.l10n, + viewport: clonedViewport, + annotationLayer: this.#annotationLayer, + textLayer: this.#textLayer, + drawLayer: this.#drawLayer + }); + const parameters = { + viewport: clonedViewport, + div, + annotations: null, + intent + }; + this.annotationEditorLayer.render(parameters); + this.show(); + } + cancel() { + this._cancelled = true; + if (!this.div) { + return; + } + this.pageDiv = null; + this.annotationEditorLayer.destroy(); + this.div.remove(); + } + hide() { + if (!this.div) { + return; + } + this.div.hidden = true; + } + show() { + if (!this.div || this.annotationEditorLayer.isEmpty) { + return; + } + this.div.hidden = false; + } +} + +;// CONCATENATED MODULE: ./web/annotation_layer_builder.js + + +class AnnotationLayerBuilder { + #onPresentationModeChanged = null; + constructor({ + pageDiv, + pdfPage, + linkService, + downloadManager, + annotationStorage = null, + imageResourcesPath = "", + renderForms = true, + enableScripting = false, + hasJSActionsPromise = null, + fieldObjectsPromise = null, + annotationCanvasMap = null, + accessibilityManager = null + }) { + this.pageDiv = pageDiv; + this.pdfPage = pdfPage; + this.linkService = linkService; + this.downloadManager = downloadManager; + this.imageResourcesPath = imageResourcesPath; + this.renderForms = renderForms; + this.annotationStorage = annotationStorage; + this.enableScripting = enableScripting; + this._hasJSActionsPromise = hasJSActionsPromise || Promise.resolve(false); + this._fieldObjectsPromise = fieldObjectsPromise || Promise.resolve(null); + this._annotationCanvasMap = annotationCanvasMap; + this._accessibilityManager = accessibilityManager; + this.annotationLayer = null; + this.div = null; + this._cancelled = false; + this._eventBus = linkService.eventBus; + } + async render(viewport, intent = "display") { + if (this.div) { + if (this._cancelled || !this.annotationLayer) { + return; + } + this.annotationLayer.update({ + viewport: viewport.clone({ + dontFlip: true + }) + }); + return; + } + const [annotations, hasJSActions, fieldObjects] = await Promise.all([this.pdfPage.getAnnotations({ + intent + }), this._hasJSActionsPromise, this._fieldObjectsPromise]); + if (this._cancelled) { + return; + } + const div = this.div = document.createElement("div"); + div.className = "annotationLayer"; + this.pageDiv.append(div); + if (annotations.length === 0) { + this.hide(); + return; + } + this.annotationLayer = new AnnotationLayer({ + div, + accessibilityManager: this._accessibilityManager, + annotationCanvasMap: this._annotationCanvasMap, + page: this.pdfPage, + viewport: viewport.clone({ + dontFlip: true + }) + }); + await this.annotationLayer.render({ + annotations, + imageResourcesPath: this.imageResourcesPath, + renderForms: this.renderForms, + linkService: this.linkService, + downloadManager: this.downloadManager, + annotationStorage: this.annotationStorage, + enableScripting: this.enableScripting, + hasJSActions, + fieldObjects + }); + if (this.linkService.isInPresentationMode) { + this.#updatePresentationModeState(PresentationModeState.FULLSCREEN); + } + if (!this.#onPresentationModeChanged) { + this.#onPresentationModeChanged = evt => { + this.#updatePresentationModeState(evt.state); + }; + this._eventBus?._on("presentationmodechanged", this.#onPresentationModeChanged); + } + } + cancel() { + this._cancelled = true; + if (this.#onPresentationModeChanged) { + this._eventBus?._off("presentationmodechanged", this.#onPresentationModeChanged); + this.#onPresentationModeChanged = null; + } + } + hide() { + if (!this.div) { + return; + } + this.div.hidden = true; + } + #updatePresentationModeState(state) { + if (!this.div) { + return; + } + let disableFormElements = false; + switch (state) { + case PresentationModeState.FULLSCREEN: + disableFormElements = true; + break; + case PresentationModeState.NORMAL: + break; + default: + return; + } + for (const section of this.div.childNodes) { + if (section.hasAttribute("data-internal-link")) { + continue; + } + section.inert = disableFormElements; + } + } +} + +;// CONCATENATED MODULE: ./web/draw_layer_builder.js + +class DrawLayerBuilder { + #drawLayer = null; + constructor(options) { + this.pageIndex = options.pageIndex; + } + async render(intent = "display") { + if (intent !== "display" || this.#drawLayer || this._cancelled) { + return; + } + this.#drawLayer = new DrawLayer({ + pageIndex: this.pageIndex + }); + } + cancel() { + this._cancelled = true; + if (!this.#drawLayer) { + return; + } + this.#drawLayer.destroy(); + this.#drawLayer = null; + } + setParent(parent) { + this.#drawLayer?.setParent(parent); + } + getDrawLayer() { + return this.#drawLayer; + } +} + +;// CONCATENATED MODULE: ./web/struct_tree_layer_builder.js + +const PDF_ROLE_TO_HTML_ROLE = { + Document: null, + DocumentFragment: null, + Part: "group", + Sect: "group", + Div: "group", + Aside: "note", + NonStruct: "none", + P: null, + H: "heading", + Title: null, + FENote: "note", + Sub: "group", + Lbl: null, + Span: null, + Em: null, + Strong: null, + Link: "link", + Annot: "note", + Form: "form", + Ruby: null, + RB: null, + RT: null, + RP: null, + Warichu: null, + WT: null, + WP: null, + L: "list", + LI: "listitem", + LBody: null, + Table: "table", + TR: "row", + TH: "columnheader", + TD: "cell", + THead: "columnheader", + TBody: null, + TFoot: null, + Caption: null, + Figure: "figure", + Formula: null, + Artifact: null +}; +const HEADING_PATTERN = /^H(\d+)$/; +class StructTreeLayerBuilder { + #treeDom = undefined; + get renderingDone() { + return this.#treeDom !== undefined; + } + render(structTree) { + if (this.#treeDom !== undefined) { + return this.#treeDom; + } + const treeDom = this.#walk(structTree); + treeDom?.classList.add("structTree"); + return this.#treeDom = treeDom; + } + hide() { + if (this.#treeDom && !this.#treeDom.hidden) { + this.#treeDom.hidden = true; + } + } + show() { + if (this.#treeDom?.hidden) { + this.#treeDom.hidden = false; + } + } + #setAttributes(structElement, htmlElement) { + const { + alt, + id, + lang + } = structElement; + if (alt !== undefined) { + htmlElement.setAttribute("aria-label", removeNullCharacters(alt)); + } + if (id !== undefined) { + htmlElement.setAttribute("aria-owns", id); + } + if (lang !== undefined) { + htmlElement.setAttribute("lang", removeNullCharacters(lang, true)); + } + } + #walk(node) { + if (!node) { + return null; + } + const element = document.createElement("span"); + if ("role" in node) { + const { + role + } = node; + const match = role.match(HEADING_PATTERN); + if (match) { + element.setAttribute("role", "heading"); + element.setAttribute("aria-level", match[1]); + } else if (PDF_ROLE_TO_HTML_ROLE[role]) { + element.setAttribute("role", PDF_ROLE_TO_HTML_ROLE[role]); + } + } + this.#setAttributes(node, element); + if (node.children) { + if (node.children.length === 1 && "id" in node.children[0]) { + this.#setAttributes(node.children[0], element); + } else { + for (const kid of node.children) { + element.append(this.#walk(kid)); + } + } + } + return element; + } +} + +;// CONCATENATED MODULE: ./web/text_accessibility.js + +class TextAccessibilityManager { + #enabled = false; + #textChildren = null; + #textNodes = new Map(); + #waitingElements = new Map(); + setTextMapping(textDivs) { + this.#textChildren = textDivs; + } + static #compareElementPositions(e1, e2) { + const rect1 = e1.getBoundingClientRect(); + const rect2 = e2.getBoundingClientRect(); + if (rect1.width === 0 && rect1.height === 0) { + return +1; + } + if (rect2.width === 0 && rect2.height === 0) { + return -1; + } + const top1 = rect1.y; + const bot1 = rect1.y + rect1.height; + const mid1 = rect1.y + rect1.height / 2; + const top2 = rect2.y; + const bot2 = rect2.y + rect2.height; + const mid2 = rect2.y + rect2.height / 2; + if (mid1 <= top2 && mid2 >= bot1) { + return -1; + } + if (mid2 <= top1 && mid1 >= bot2) { + return +1; + } + const centerX1 = rect1.x + rect1.width / 2; + const centerX2 = rect2.x + rect2.width / 2; + return centerX1 - centerX2; + } + enable() { + if (this.#enabled) { + throw new Error("TextAccessibilityManager is already enabled."); + } + if (!this.#textChildren) { + throw new Error("Text divs and strings have not been set."); + } + this.#enabled = true; + this.#textChildren = this.#textChildren.slice(); + this.#textChildren.sort(TextAccessibilityManager.#compareElementPositions); + if (this.#textNodes.size > 0) { + const textChildren = this.#textChildren; + for (const [id, nodeIndex] of this.#textNodes) { + const element = document.getElementById(id); + if (!element) { + this.#textNodes.delete(id); + continue; + } + this.#addIdToAriaOwns(id, textChildren[nodeIndex]); + } + } + for (const [element, isRemovable] of this.#waitingElements) { + this.addPointerInTextLayer(element, isRemovable); + } + this.#waitingElements.clear(); + } + disable() { + if (!this.#enabled) { + return; + } + this.#waitingElements.clear(); + this.#textChildren = null; + this.#enabled = false; + } + removePointerInTextLayer(element) { + if (!this.#enabled) { + this.#waitingElements.delete(element); + return; + } + const children = this.#textChildren; + if (!children || children.length === 0) { + return; + } + const { + id + } = element; + const nodeIndex = this.#textNodes.get(id); + if (nodeIndex === undefined) { + return; + } + const node = children[nodeIndex]; + this.#textNodes.delete(id); + let owns = node.getAttribute("aria-owns"); + if (owns?.includes(id)) { + owns = owns.split(" ").filter(x => x !== id).join(" "); + if (owns) { + node.setAttribute("aria-owns", owns); + } else { + node.removeAttribute("aria-owns"); + node.setAttribute("role", "presentation"); + } + } + } + #addIdToAriaOwns(id, node) { + const owns = node.getAttribute("aria-owns"); + if (!owns?.includes(id)) { + node.setAttribute("aria-owns", owns ? `${owns} ${id}` : id); + } + node.removeAttribute("role"); + } + addPointerInTextLayer(element, isRemovable) { + const { + id + } = element; + if (!id) { + return null; + } + if (!this.#enabled) { + this.#waitingElements.set(element, isRemovable); + return null; + } + if (isRemovable) { + this.removePointerInTextLayer(element); + } + const children = this.#textChildren; + if (!children || children.length === 0) { + return null; + } + const index = binarySearchFirstItem(children, node => TextAccessibilityManager.#compareElementPositions(element, node) < 0); + const nodeIndex = Math.max(0, index - 1); + const child = children[nodeIndex]; + this.#addIdToAriaOwns(id, child); + this.#textNodes.set(id, nodeIndex); + const parent = child.parentNode; + return parent?.classList.contains("markedContent") ? parent.id : null; + } + moveElementInDOM(container, element, contentElement, isRemovable) { + const id = this.addPointerInTextLayer(contentElement, isRemovable); + if (!container.hasChildNodes()) { + container.append(element); + return id; + } + const children = Array.from(container.childNodes).filter(node => node !== element); + if (children.length === 0) { + return id; + } + const elementToCompare = contentElement || element; + const index = binarySearchFirstItem(children, node => TextAccessibilityManager.#compareElementPositions(elementToCompare, node) < 0); + if (index === 0) { + children[0].before(element); + } else { + children[index - 1].after(element); + } + return id; + } +} + +;// CONCATENATED MODULE: ./web/text_highlighter.js +class TextHighlighter { + constructor({ + findController, + eventBus, + pageIndex + }) { + this.findController = findController; + this.matches = []; + this.eventBus = eventBus; + this.pageIdx = pageIndex; + this._onUpdateTextLayerMatches = null; + this.textDivs = null; + this.textContentItemsStr = null; + this.enabled = false; + } + setTextMapping(divs, texts) { + this.textDivs = divs; + this.textContentItemsStr = texts; + } + enable() { + if (!this.textDivs || !this.textContentItemsStr) { + throw new Error("Text divs and strings have not been set."); + } + if (this.enabled) { + throw new Error("TextHighlighter is already enabled."); + } + this.enabled = true; + if (!this._onUpdateTextLayerMatches) { + this._onUpdateTextLayerMatches = evt => { + if (evt.pageIndex === this.pageIdx || evt.pageIndex === -1) { + this._updateMatches(); + } + }; + this.eventBus._on("updatetextlayermatches", this._onUpdateTextLayerMatches); + } + this._updateMatches(); + } + disable() { + if (!this.enabled) { + return; + } + this.enabled = false; + if (this._onUpdateTextLayerMatches) { + this.eventBus._off("updatetextlayermatches", this._onUpdateTextLayerMatches); + this._onUpdateTextLayerMatches = null; + } + this._updateMatches(true); + } + _convertMatches(matches, matchesLength) { + if (!matches) { + return []; + } + const { + textContentItemsStr + } = this; + let i = 0, + iIndex = 0; + const end = textContentItemsStr.length - 1; + const result = []; + for (let m = 0, mm = matches.length; m < mm; m++) { + let matchIdx = matches[m]; + while (i !== end && matchIdx >= iIndex + textContentItemsStr[i].length) { + iIndex += textContentItemsStr[i].length; + i++; + } + if (i === textContentItemsStr.length) { + console.error("Could not find a matching mapping"); + } + const match = { + begin: { + divIdx: i, + offset: matchIdx - iIndex + } + }; + matchIdx += matchesLength[m]; + while (i !== end && matchIdx > iIndex + textContentItemsStr[i].length) { + iIndex += textContentItemsStr[i].length; + i++; + } + match.end = { + divIdx: i, + offset: matchIdx - iIndex + }; + result.push(match); + } + return result; + } + _renderMatches(matches) { + if (matches.length === 0) { + return; + } + const { + findController, + pageIdx + } = this; + const { + textContentItemsStr, + textDivs + } = this; + const isSelectedPage = pageIdx === findController.selected.pageIdx; + const selectedMatchIdx = findController.selected.matchIdx; + const highlightAll = findController.state.highlightAll; + let prevEnd = null; + const infinity = { + divIdx: -1, + offset: undefined + }; + function beginText(begin, className) { + const divIdx = begin.divIdx; + textDivs[divIdx].textContent = ""; + return appendTextToDiv(divIdx, 0, begin.offset, className); + } + function appendTextToDiv(divIdx, fromOffset, toOffset, className) { + let div = textDivs[divIdx]; + if (div.nodeType === Node.TEXT_NODE) { + const span = document.createElement("span"); + div.before(span); + span.append(div); + textDivs[divIdx] = span; + div = span; + } + const content = textContentItemsStr[divIdx].substring(fromOffset, toOffset); + const node = document.createTextNode(content); + if (className) { + const span = document.createElement("span"); + span.className = `${className} appended`; + span.append(node); + div.append(span); + return className.includes("selected") ? span.offsetLeft : 0; + } + div.append(node); + return 0; + } + let i0 = selectedMatchIdx, + i1 = i0 + 1; + if (highlightAll) { + i0 = 0; + i1 = matches.length; + } else if (!isSelectedPage) { + return; + } + let lastDivIdx = -1; + let lastOffset = -1; + for (let i = i0; i < i1; i++) { + const match = matches[i]; + const begin = match.begin; + if (begin.divIdx === lastDivIdx && begin.offset === lastOffset) { + continue; + } + lastDivIdx = begin.divIdx; + lastOffset = begin.offset; + const end = match.end; + const isSelected = isSelectedPage && i === selectedMatchIdx; + const highlightSuffix = isSelected ? " selected" : ""; + let selectedLeft = 0; + if (!prevEnd || begin.divIdx !== prevEnd.divIdx) { + if (prevEnd !== null) { + appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset); + } + beginText(begin); + } else { + appendTextToDiv(prevEnd.divIdx, prevEnd.offset, begin.offset); + } + if (begin.divIdx === end.divIdx) { + selectedLeft = appendTextToDiv(begin.divIdx, begin.offset, end.offset, "highlight" + highlightSuffix); + } else { + selectedLeft = appendTextToDiv(begin.divIdx, begin.offset, infinity.offset, "highlight begin" + highlightSuffix); + for (let n0 = begin.divIdx + 1, n1 = end.divIdx; n0 < n1; n0++) { + textDivs[n0].className = "highlight middle" + highlightSuffix; + } + beginText(end, "highlight end" + highlightSuffix); + } + prevEnd = end; + if (isSelected) { + findController.scrollMatchIntoView({ + element: textDivs[begin.divIdx], + selectedLeft, + pageIndex: pageIdx, + matchIndex: selectedMatchIdx + }); + } + } + if (prevEnd) { + appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset); + } + } + _updateMatches(reset = false) { + if (!this.enabled && !reset) { + return; + } + const { + findController, + matches, + pageIdx + } = this; + const { + textContentItemsStr, + textDivs + } = this; + let clearedUntilDivIdx = -1; + for (const match of matches) { + const begin = Math.max(clearedUntilDivIdx, match.begin.divIdx); + for (let n = begin, end = match.end.divIdx; n <= end; n++) { + const div = textDivs[n]; + div.textContent = textContentItemsStr[n]; + div.className = ""; + } + clearedUntilDivIdx = match.end.divIdx + 1; + } + if (!findController?.highlightMatches || reset) { + return; + } + const pageMatches = findController.pageMatches[pageIdx] || null; + const pageMatchesLength = findController.pageMatchesLength[pageIdx] || null; + this.matches = this._convertMatches(pageMatches, pageMatchesLength); + this._renderMatches(this.matches); + } +} + +;// CONCATENATED MODULE: ./web/text_layer_builder.js + + +class TextLayerBuilder { + #enablePermissions = false; + #rotation = 0; + #scale = 0; + #textContentSource = null; + constructor({ + highlighter = null, + accessibilityManager = null, + enablePermissions = false + }) { + this.textContentItemsStr = []; + this.renderingDone = false; + this.textDivs = []; + this.textDivProperties = new WeakMap(); + this.textLayerRenderTask = null; + this.highlighter = highlighter; + this.accessibilityManager = accessibilityManager; + this.#enablePermissions = enablePermissions === true; + this.onAppend = null; + this.div = document.createElement("div"); + this.div.className = "textLayer"; + } + #finishRendering() { + this.renderingDone = true; + const endOfContent = document.createElement("div"); + endOfContent.className = "endOfContent"; + this.div.append(endOfContent); + this.#bindMouse(); + } + get numTextDivs() { + return this.textDivs.length; + } + async render(viewport) { + if (!this.#textContentSource) { + throw new Error('No "textContentSource" parameter specified.'); + } + const scale = viewport.scale * (globalThis.devicePixelRatio || 1); + const { + rotation + } = viewport; + if (this.renderingDone) { + const mustRotate = rotation !== this.#rotation; + const mustRescale = scale !== this.#scale; + if (mustRotate || mustRescale) { + this.hide(); + updateTextLayer({ + container: this.div, + viewport, + textDivs: this.textDivs, + textDivProperties: this.textDivProperties, + mustRescale, + mustRotate + }); + this.#scale = scale; + this.#rotation = rotation; + } + this.show(); + return; + } + this.cancel(); + this.highlighter?.setTextMapping(this.textDivs, this.textContentItemsStr); + this.accessibilityManager?.setTextMapping(this.textDivs); + this.textLayerRenderTask = renderTextLayer({ + textContentSource: this.#textContentSource, + container: this.div, + viewport, + textDivs: this.textDivs, + textDivProperties: this.textDivProperties, + textContentItemsStr: this.textContentItemsStr + }); + await this.textLayerRenderTask.promise; + this.#finishRendering(); + this.#scale = scale; + this.#rotation = rotation; + this.onAppend(this.div); + this.highlighter?.enable(); + this.accessibilityManager?.enable(); + } + hide() { + if (!this.div.hidden && this.renderingDone) { + this.highlighter?.disable(); + this.div.hidden = true; + } + } + show() { + if (this.div.hidden && this.renderingDone) { + this.div.hidden = false; + this.highlighter?.enable(); + } + } + cancel() { + if (this.textLayerRenderTask) { + this.textLayerRenderTask.cancel(); + this.textLayerRenderTask = null; + } + this.highlighter?.disable(); + this.accessibilityManager?.disable(); + this.textContentItemsStr.length = 0; + this.textDivs.length = 0; + this.textDivProperties = new WeakMap(); + } + setTextContentSource(source) { + this.cancel(); + this.#textContentSource = source; + } + #bindMouse() { + const { + div + } = this; + div.addEventListener("mousedown", evt => { + const end = div.querySelector(".endOfContent"); + if (!end) { + return; + } + end.classList.add("active"); + }); + div.addEventListener("mouseup", () => { + const end = div.querySelector(".endOfContent"); + if (!end) { + return; + } + end.classList.remove("active"); + }); + div.addEventListener("copy", event => { + if (!this.#enablePermissions) { + const selection = document.getSelection(); + event.clipboardData.setData("text/plain", removeNullCharacters(normalizeUnicode(selection.toString()))); + } + event.preventDefault(); + event.stopPropagation(); + }); + } +} + +;// CONCATENATED MODULE: ./web/pdf_page_view.js + + + + + + + + + + + + + +const MAX_CANVAS_PIXELS = compatibilityParams.maxCanvasPixels || 16777216; +const DEFAULT_LAYER_PROPERTIES = null; +class PDFPageView { + #annotationMode = AnnotationMode.ENABLE_FORMS; + #hasRestrictedScaling = false; + #layerProperties = null; + #loadingId = null; + #previousRotation = null; + #renderError = null; + #renderingState = RenderingStates.INITIAL; + #textLayerMode = TextLayerMode.ENABLE; + #useThumbnailCanvas = { + directDrawing: true, + initialOptionalContent: true, + regularAnnotations: true + }; + #viewportMap = new WeakMap(); + constructor(options) { + const container = options.container; + const defaultViewport = options.defaultViewport; + this.id = options.id; + this.renderingId = "page" + this.id; + this.#layerProperties = options.layerProperties || DEFAULT_LAYER_PROPERTIES; + this.pdfPage = null; + this.pageLabel = null; + this.rotation = 0; + this.scale = options.scale || DEFAULT_SCALE; + this.viewport = defaultViewport; + this.pdfPageRotate = defaultViewport.rotation; + this._optionalContentConfigPromise = options.optionalContentConfigPromise || null; + this.#textLayerMode = options.textLayerMode ?? TextLayerMode.ENABLE; + this.#annotationMode = options.annotationMode ?? AnnotationMode.ENABLE_FORMS; + this.imageResourcesPath = options.imageResourcesPath || ""; + this.maxCanvasPixels = options.maxCanvasPixels ?? MAX_CANVAS_PIXELS; + this.pageColors = options.pageColors || null; + this.eventBus = options.eventBus; + this.renderingQueue = options.renderingQueue; + this.l10n = options.l10n; + this.renderTask = null; + this.resume = null; + this._annotationCanvasMap = null; + this.annotationLayer = null; + this.annotationEditorLayer = null; + this.textLayer = null; + this.zoomLayer = null; + this.xfaLayer = null; + this.structTreeLayer = null; + this.drawLayer = null; + const div = document.createElement("div"); + div.className = "page"; + div.setAttribute("data-page-number", this.id); + div.setAttribute("role", "region"); + div.setAttribute("data-l10n-id", "pdfjs-page-landmark"); + div.setAttribute("data-l10n-args", JSON.stringify({ + page: this.id + })); + this.div = div; + this.#setDimensions(); + container?.append(div); + } + get renderingState() { + return this.#renderingState; + } + set renderingState(state) { + if (state === this.#renderingState) { + return; + } + this.#renderingState = state; + if (this.#loadingId) { + clearTimeout(this.#loadingId); + this.#loadingId = null; + } + switch (state) { + case RenderingStates.PAUSED: + this.div.classList.remove("loading"); + break; + case RenderingStates.RUNNING: + this.div.classList.add("loadingIcon"); + this.#loadingId = setTimeout(() => { + this.div.classList.add("loading"); + this.#loadingId = null; + }, 0); + break; + case RenderingStates.INITIAL: + case RenderingStates.FINISHED: + this.div.classList.remove("loadingIcon", "loading"); + break; + } + } + #setDimensions() { + const { + viewport + } = this; + if (this.pdfPage) { + if (this.#previousRotation === viewport.rotation) { + return; + } + this.#previousRotation = viewport.rotation; + } + setLayerDimensions(this.div, viewport, true, false); + } + setPdfPage(pdfPage) { + this.pdfPage = pdfPage; + this.pdfPageRotate = pdfPage.rotate; + const totalRotation = (this.rotation + this.pdfPageRotate) % 360; + this.viewport = pdfPage.getViewport({ + scale: this.scale * PixelsPerInch.PDF_TO_CSS_UNITS, + rotation: totalRotation + }); + this.#setDimensions(); + this.reset(); + } + destroy() { + this.reset(); + this.pdfPage?.cleanup(); + } + get _textHighlighter() { + return shadow(this, "_textHighlighter", new TextHighlighter({ + pageIndex: this.id - 1, + eventBus: this.eventBus, + findController: this.#layerProperties.findController + })); + } + async #renderAnnotationLayer() { + let error = null; + try { + await this.annotationLayer.render(this.viewport, "display"); + } catch (ex) { + console.error(`#renderAnnotationLayer: "${ex}".`); + error = ex; + } finally { + this.eventBus.dispatch("annotationlayerrendered", { + source: this, + pageNumber: this.id, + error + }); + } + } + async #renderAnnotationEditorLayer() { + let error = null; + try { + await this.annotationEditorLayer.render(this.viewport, "display"); + } catch (ex) { + console.error(`#renderAnnotationEditorLayer: "${ex}".`); + error = ex; + } finally { + this.eventBus.dispatch("annotationeditorlayerrendered", { + source: this, + pageNumber: this.id, + error + }); + } + } + async #renderDrawLayer() { + try { + await this.drawLayer.render("display"); + } catch (ex) { + console.error(`#renderDrawLayer: "${ex}".`); + } + } + async #renderXfaLayer() { + let error = null; + try { + const result = await this.xfaLayer.render(this.viewport, "display"); + if (result?.textDivs && this._textHighlighter) { + this.#buildXfaTextContentItems(result.textDivs); + } + } catch (ex) { + console.error(`#renderXfaLayer: "${ex}".`); + error = ex; + } finally { + if (this.xfaLayer?.div) { + this.l10n.pause(); + this.div.append(this.xfaLayer.div); + this.l10n.resume(); + } + this.eventBus.dispatch("xfalayerrendered", { + source: this, + pageNumber: this.id, + error + }); + } + } + async #renderTextLayer() { + const { + pdfPage, + textLayer, + viewport + } = this; + if (!textLayer) { + return; + } + let error = null; + try { + if (!textLayer.renderingDone) { + const readableStream = pdfPage.streamTextContent({ + includeMarkedContent: true, + disableNormalization: true + }); + textLayer.setTextContentSource(readableStream); + } + await textLayer.render(viewport); + } catch (ex) { + if (ex instanceof AbortException) { + return; + } + console.error(`#renderTextLayer: "${ex}".`); + error = ex; + } + this.eventBus.dispatch("textlayerrendered", { + source: this, + pageNumber: this.id, + numTextDivs: textLayer.numTextDivs, + error + }); + this.#renderStructTreeLayer(); + } + async #renderStructTreeLayer() { + if (!this.textLayer) { + return; + } + this.structTreeLayer ||= new StructTreeLayerBuilder(); + const tree = await (!this.structTreeLayer.renderingDone ? this.pdfPage.getStructTree() : null); + const treeDom = this.structTreeLayer?.render(tree); + if (treeDom) { + this.l10n.pause(); + this.canvas?.append(treeDom); + this.l10n.resume(); + } + this.structTreeLayer?.show(); + } + async #buildXfaTextContentItems(textDivs) { + const text = await this.pdfPage.getTextContent(); + const items = []; + for (const item of text.items) { + items.push(item.str); + } + this._textHighlighter.setTextMapping(textDivs, items); + this._textHighlighter.enable(); + } + _resetZoomLayer(removeFromDOM = false) { + if (!this.zoomLayer) { + return; + } + const zoomLayerCanvas = this.zoomLayer.firstChild; + this.#viewportMap.delete(zoomLayerCanvas); + zoomLayerCanvas.width = 0; + zoomLayerCanvas.height = 0; + if (removeFromDOM) { + this.zoomLayer.remove(); + } + this.zoomLayer = null; + } + reset({ + keepZoomLayer = false, + keepAnnotationLayer = false, + keepAnnotationEditorLayer = false, + keepXfaLayer = false, + keepTextLayer = false + } = {}) { + this.cancelRendering({ + keepAnnotationLayer, + keepAnnotationEditorLayer, + keepXfaLayer, + keepTextLayer + }); + this.renderingState = RenderingStates.INITIAL; + const div = this.div; + const childNodes = div.childNodes, + zoomLayerNode = keepZoomLayer && this.zoomLayer || null, + annotationLayerNode = keepAnnotationLayer && this.annotationLayer?.div || null, + annotationEditorLayerNode = keepAnnotationEditorLayer && this.annotationEditorLayer?.div || null, + xfaLayerNode = keepXfaLayer && this.xfaLayer?.div || null, + textLayerNode = keepTextLayer && this.textLayer?.div || null; + for (let i = childNodes.length - 1; i >= 0; i--) { + const node = childNodes[i]; + switch (node) { + case zoomLayerNode: + case annotationLayerNode: + case annotationEditorLayerNode: + case xfaLayerNode: + case textLayerNode: + continue; + } + node.remove(); + } + div.removeAttribute("data-loaded"); + if (annotationLayerNode) { + this.annotationLayer.hide(); + } + if (annotationEditorLayerNode) { + this.annotationEditorLayer.hide(); + } + if (xfaLayerNode) { + this.xfaLayer.hide(); + } + if (textLayerNode) { + this.textLayer.hide(); + } + this.structTreeLayer?.hide(); + if (!zoomLayerNode) { + if (this.canvas) { + this.#viewportMap.delete(this.canvas); + this.canvas.width = 0; + this.canvas.height = 0; + delete this.canvas; + } + this._resetZoomLayer(); + } + } + update({ + scale = 0, + rotation = null, + optionalContentConfigPromise = null, + drawingDelay = -1 + }) { + this.scale = scale || this.scale; + if (typeof rotation === "number") { + this.rotation = rotation; + } + if (optionalContentConfigPromise instanceof Promise) { + this._optionalContentConfigPromise = optionalContentConfigPromise; + optionalContentConfigPromise.then(optionalContentConfig => { + if (optionalContentConfigPromise !== this._optionalContentConfigPromise) { + return; + } + this.#useThumbnailCanvas.initialOptionalContent = optionalContentConfig.hasInitialVisibility; + }); + } + this.#useThumbnailCanvas.directDrawing = true; + const totalRotation = (this.rotation + this.pdfPageRotate) % 360; + this.viewport = this.viewport.clone({ + scale: this.scale * PixelsPerInch.PDF_TO_CSS_UNITS, + rotation: totalRotation + }); + this.#setDimensions(); + if (this.canvas) { + let onlyCssZoom = false; + if (this.#hasRestrictedScaling) { + if (this.maxCanvasPixels > 0) { + const { + width, + height + } = this.viewport; + const { + sx, + sy + } = this.outputScale; + onlyCssZoom = (Math.floor(width) * sx | 0) * (Math.floor(height) * sy | 0) > this.maxCanvasPixels; + } + } + const postponeDrawing = !onlyCssZoom && drawingDelay >= 0 && drawingDelay < 1000; + if (postponeDrawing || onlyCssZoom) { + if (postponeDrawing && this.renderingState !== RenderingStates.FINISHED) { + this.cancelRendering({ + keepZoomLayer: true, + keepAnnotationLayer: true, + keepAnnotationEditorLayer: true, + keepXfaLayer: true, + keepTextLayer: true, + cancelExtraDelay: drawingDelay + }); + this.renderingState = RenderingStates.FINISHED; + this.#useThumbnailCanvas.directDrawing = false; + } + this.cssTransform({ + target: this.canvas, + redrawAnnotationLayer: true, + redrawAnnotationEditorLayer: true, + redrawXfaLayer: true, + redrawTextLayer: !postponeDrawing, + hideTextLayer: postponeDrawing + }); + if (postponeDrawing) { + return; + } + this.eventBus.dispatch("pagerendered", { + source: this, + pageNumber: this.id, + cssTransform: true, + timestamp: performance.now(), + error: this.#renderError + }); + return; + } + if (!this.zoomLayer && !this.canvas.hidden) { + this.zoomLayer = this.canvas.parentNode; + this.zoomLayer.style.position = "absolute"; + } + } + if (this.zoomLayer) { + this.cssTransform({ + target: this.zoomLayer.firstChild + }); + } + this.reset({ + keepZoomLayer: true, + keepAnnotationLayer: true, + keepAnnotationEditorLayer: true, + keepXfaLayer: true, + keepTextLayer: true + }); + } + cancelRendering({ + keepAnnotationLayer = false, + keepAnnotationEditorLayer = false, + keepXfaLayer = false, + keepTextLayer = false, + cancelExtraDelay = 0 + } = {}) { + if (this.renderTask) { + this.renderTask.cancel(cancelExtraDelay); + this.renderTask = null; + } + this.resume = null; + if (this.textLayer && (!keepTextLayer || !this.textLayer.div)) { + this.textLayer.cancel(); + this.textLayer = null; + } + if (this.structTreeLayer && !this.textLayer) { + this.structTreeLayer = null; + } + if (this.annotationLayer && (!keepAnnotationLayer || !this.annotationLayer.div)) { + this.annotationLayer.cancel(); + this.annotationLayer = null; + this._annotationCanvasMap = null; + } + if (this.annotationEditorLayer && (!keepAnnotationEditorLayer || !this.annotationEditorLayer.div)) { + if (this.drawLayer) { + this.drawLayer.cancel(); + this.drawLayer = null; + } + this.annotationEditorLayer.cancel(); + this.annotationEditorLayer = null; + } + if (this.xfaLayer && (!keepXfaLayer || !this.xfaLayer.div)) { + this.xfaLayer.cancel(); + this.xfaLayer = null; + this._textHighlighter?.disable(); + } + } + cssTransform({ + target, + redrawAnnotationLayer = false, + redrawAnnotationEditorLayer = false, + redrawXfaLayer = false, + redrawTextLayer = false, + hideTextLayer = false + }) { + if (!target.hasAttribute("zooming")) { + target.setAttribute("zooming", true); + const { + style + } = target; + style.width = style.height = ""; + } + const originalViewport = this.#viewportMap.get(target); + if (this.viewport !== originalViewport) { + const relativeRotation = this.viewport.rotation - originalViewport.rotation; + const absRotation = Math.abs(relativeRotation); + let scaleX = 1, + scaleY = 1; + if (absRotation === 90 || absRotation === 270) { + const { + width, + height + } = this.viewport; + scaleX = height / width; + scaleY = width / height; + } + target.style.transform = `rotate(${relativeRotation}deg) scale(${scaleX}, ${scaleY})`; + } + if (redrawAnnotationLayer && this.annotationLayer) { + this.#renderAnnotationLayer(); + } + if (redrawAnnotationEditorLayer && this.annotationEditorLayer) { + if (this.drawLayer) { + this.#renderDrawLayer(); + } + this.#renderAnnotationEditorLayer(); + } + if (redrawXfaLayer && this.xfaLayer) { + this.#renderXfaLayer(); + } + if (this.textLayer) { + if (hideTextLayer) { + this.textLayer.hide(); + this.structTreeLayer?.hide(); + } else if (redrawTextLayer) { + this.#renderTextLayer(); + } + } + } + get width() { + return this.viewport.width; + } + get height() { + return this.viewport.height; + } + getPagePoint(x, y) { + return this.viewport.convertToPdfPoint(x, y); + } + async #finishRenderTask(renderTask, error = null) { + if (renderTask === this.renderTask) { + this.renderTask = null; + } + if (error instanceof RenderingCancelledException) { + this.#renderError = null; + return; + } + this.#renderError = error; + this.renderingState = RenderingStates.FINISHED; + this._resetZoomLayer(true); + this.#useThumbnailCanvas.regularAnnotations = !renderTask.separateAnnots; + this.eventBus.dispatch("pagerendered", { + source: this, + pageNumber: this.id, + cssTransform: false, + timestamp: performance.now(), + error: this.#renderError + }); + if (error) { + throw error; + } + } + async draw() { + if (this.renderingState !== RenderingStates.INITIAL) { + console.error("Must be in new state before drawing"); + this.reset(); + } + const { + div, + l10n, + pageColors, + pdfPage, + viewport + } = this; + if (!pdfPage) { + this.renderingState = RenderingStates.FINISHED; + throw new Error("pdfPage is not loaded"); + } + this.renderingState = RenderingStates.RUNNING; + const canvasWrapper = document.createElement("div"); + canvasWrapper.classList.add("canvasWrapper"); + div.append(canvasWrapper); + if (!this.textLayer && this.#textLayerMode !== TextLayerMode.DISABLE && !pdfPage.isPureXfa) { + this._accessibilityManager ||= new TextAccessibilityManager(); + this.textLayer = new TextLayerBuilder({ + highlighter: this._textHighlighter, + accessibilityManager: this._accessibilityManager, + enablePermissions: this.#textLayerMode === TextLayerMode.ENABLE_PERMISSIONS + }); + this.textLayer.onAppend = textLayerDiv => { + this.l10n.pause(); + this.div.append(textLayerDiv); + this.l10n.resume(); + }; + } + if (!this.annotationLayer && this.#annotationMode !== AnnotationMode.DISABLE) { + const { + annotationStorage, + downloadManager, + enableScripting, + fieldObjectsPromise, + hasJSActionsPromise, + linkService + } = this.#layerProperties; + this._annotationCanvasMap ||= new Map(); + this.annotationLayer = new AnnotationLayerBuilder({ + pageDiv: div, + pdfPage, + annotationStorage, + imageResourcesPath: this.imageResourcesPath, + renderForms: this.#annotationMode === AnnotationMode.ENABLE_FORMS, + linkService, + downloadManager, + enableScripting, + hasJSActionsPromise, + fieldObjectsPromise, + annotationCanvasMap: this._annotationCanvasMap, + accessibilityManager: this._accessibilityManager + }); + } + const renderContinueCallback = cont => { + showCanvas?.(false); + if (this.renderingQueue && !this.renderingQueue.isHighestPriority(this)) { + this.renderingState = RenderingStates.PAUSED; + this.resume = () => { + this.renderingState = RenderingStates.RUNNING; + cont(); + }; + return; + } + cont(); + }; + const { + width, + height + } = viewport; + const canvas = document.createElement("canvas"); + canvas.setAttribute("role", "presentation"); + canvas.hidden = true; + const hasHCM = !!(pageColors?.background && pageColors?.foreground); + let showCanvas = isLastShow => { + if (!hasHCM || isLastShow) { + canvas.hidden = false; + showCanvas = null; + } + }; + canvasWrapper.append(canvas); + this.canvas = canvas; + const ctx = canvas.getContext("2d", { + alpha: false + }); + const outputScale = this.outputScale = new OutputScale(); + if (this.maxCanvasPixels > 0) { + const pixelsInViewport = width * height; + const maxScale = Math.sqrt(this.maxCanvasPixels / pixelsInViewport); + if (outputScale.sx > maxScale || outputScale.sy > maxScale) { + outputScale.sx = maxScale; + outputScale.sy = maxScale; + this.#hasRestrictedScaling = true; + } else { + this.#hasRestrictedScaling = false; + } + } + const sfx = approximateFraction(outputScale.sx); + const sfy = approximateFraction(outputScale.sy); + canvas.width = roundToDivide(width * outputScale.sx, sfx[0]); + canvas.height = roundToDivide(height * outputScale.sy, sfy[0]); + const { + style + } = canvas; + style.width = roundToDivide(width, sfx[1]) + "px"; + style.height = roundToDivide(height, sfy[1]) + "px"; + this.#viewportMap.set(canvas, viewport); + const transform = outputScale.scaled ? [outputScale.sx, 0, 0, outputScale.sy, 0, 0] : null; + const renderContext = { + canvasContext: ctx, + transform, + viewport, + annotationMode: this.#annotationMode, + optionalContentConfigPromise: this._optionalContentConfigPromise, + annotationCanvasMap: this._annotationCanvasMap, + pageColors + }; + const renderTask = this.renderTask = this.pdfPage.render(renderContext); + renderTask.onContinue = renderContinueCallback; + const resultPromise = renderTask.promise.then(async () => { + showCanvas?.(true); + await this.#finishRenderTask(renderTask); + this.#renderTextLayer(); + if (this.annotationLayer) { + await this.#renderAnnotationLayer(); + } + const { + annotationEditorUIManager + } = this.#layerProperties; + if (!annotationEditorUIManager) { + return; + } + this.drawLayer ||= new DrawLayerBuilder({ + pageIndex: this.id + }); + await this.#renderDrawLayer(); + this.drawLayer.setParent(canvasWrapper); + if (!this.annotationEditorLayer) { + this.annotationEditorLayer = new AnnotationEditorLayerBuilder({ + uiManager: annotationEditorUIManager, + pageDiv: div, + pdfPage, + l10n, + accessibilityManager: this._accessibilityManager, + annotationLayer: this.annotationLayer?.annotationLayer, + textLayer: this.textLayer, + drawLayer: this.drawLayer.getDrawLayer() + }); + } + this.#renderAnnotationEditorLayer(); + }, error => { + if (!(error instanceof RenderingCancelledException)) { + showCanvas?.(true); + } + return this.#finishRenderTask(renderTask, error); + }); + if (pdfPage.isPureXfa) { + if (!this.xfaLayer) { + const { + annotationStorage, + linkService + } = this.#layerProperties; + this.xfaLayer = new XfaLayerBuilder({ + pdfPage, + annotationStorage, + linkService + }); + } + this.#renderXfaLayer(); + } + div.setAttribute("data-loaded", true); + this.eventBus.dispatch("pagerender", { + source: this, + pageNumber: this.id + }); + return resultPromise; + } + setPageLabel(label) { + this.pageLabel = typeof label === "string" ? label : null; + this.div.setAttribute("data-l10n-args", JSON.stringify({ + page: this.pageLabel ?? this.id + })); + if (this.pageLabel !== null) { + this.div.setAttribute("data-page-label", this.pageLabel); + } else { + this.div.removeAttribute("data-page-label"); + } + } + get thumbnailCanvas() { + const { + directDrawing, + initialOptionalContent, + regularAnnotations + } = this.#useThumbnailCanvas; + return directDrawing && initialOptionalContent && regularAnnotations ? this.canvas : null; + } +} + +;// CONCATENATED MODULE: ./web/pdf_viewer.js + + + + + + +const DEFAULT_CACHE_SIZE = 10; +const PagesCountLimit = { + FORCE_SCROLL_MODE_PAGE: 15000, + FORCE_LAZY_PAGE_INIT: 7500, + PAUSE_EAGER_PAGE_INIT: 250 +}; +function isValidAnnotationEditorMode(mode) { + return Object.values(AnnotationEditorType).includes(mode) && mode !== AnnotationEditorType.DISABLE; +} +class PDFPageViewBuffer { + #buf = new Set(); + #size = 0; + constructor(size) { + this.#size = size; + } + push(view) { + const buf = this.#buf; + if (buf.has(view)) { + buf.delete(view); + } + buf.add(view); + if (buf.size > this.#size) { + this.#destroyFirstView(); + } + } + resize(newSize, idsToKeep = null) { + this.#size = newSize; + const buf = this.#buf; + if (idsToKeep) { + const ii = buf.size; + let i = 1; + for (const view of buf) { + if (idsToKeep.has(view.id)) { + buf.delete(view); + buf.add(view); + } + if (++i > ii) { + break; + } + } + } + while (buf.size > this.#size) { + this.#destroyFirstView(); + } + } + has(view) { + return this.#buf.has(view); + } + [Symbol.iterator]() { + return this.#buf.keys(); + } + #destroyFirstView() { + const firstView = this.#buf.keys().next().value; + firstView?.destroy(); + this.#buf.delete(firstView); + } +} +class PDFViewer { + #buffer = null; + #altTextManager = null; + #annotationEditorHighlightColors = null; + #annotationEditorMode = AnnotationEditorType.NONE; + #annotationEditorUIManager = null; + #annotationMode = AnnotationMode.ENABLE_FORMS; + #containerTopLeft = null; + #copyCallbackBound = null; + #enablePermissions = false; + #mlManager = null; + #getAllTextInProgress = false; + #hiddenCopyElement = null; + #interruptCopyCondition = false; + #previousContainerHeight = 0; + #resizeObserver = new ResizeObserver(this.#resizeObserverCallback.bind(this)); + #scrollModePageState = null; + #onVisibilityChange = null; + #scaleTimeoutId = null; + #textLayerMode = TextLayerMode.ENABLE; + constructor(options) { + const viewerVersion = "4.1.249"; + if (version !== viewerVersion) { + throw new Error(`The API version "${version}" does not match the Viewer version "${viewerVersion}".`); + } + this.container = options.container; + this.viewer = options.viewer || options.container.firstElementChild; + this.#resizeObserver.observe(this.container); + this.eventBus = options.eventBus; + this.linkService = options.linkService || new SimpleLinkService(); + this.downloadManager = options.downloadManager || null; + this.findController = options.findController || null; + this.#altTextManager = options.altTextManager || null; + if (this.findController) { + this.findController.onIsPageVisible = pageNumber => this._getVisiblePages().ids.has(pageNumber); + } + this._scriptingManager = options.scriptingManager || null; + this.#textLayerMode = options.textLayerMode ?? TextLayerMode.ENABLE; + this.#annotationMode = options.annotationMode ?? AnnotationMode.ENABLE_FORMS; + this.#annotationEditorMode = options.annotationEditorMode ?? AnnotationEditorType.NONE; + this.#annotationEditorHighlightColors = options.annotationEditorHighlightColors || null; + this.imageResourcesPath = options.imageResourcesPath || ""; + this.enablePrintAutoRotate = options.enablePrintAutoRotate || false; + this.maxCanvasPixels = options.maxCanvasPixels; + this.l10n = options.l10n; + this.#enablePermissions = options.enablePermissions || false; + this.pageColors = options.pageColors || null; + this.#mlManager = options.mlManager || null; + this.defaultRenderingQueue = !options.renderingQueue; + this.renderingQueue = options.renderingQueue; + this.scroll = watchScroll(this.container, this._scrollUpdate.bind(this)); + this.presentationModeState = PresentationModeState.UNKNOWN; + this._onBeforeDraw = this._onAfterDraw = null; + this._resetView(); + this.#updateContainerHeightCss(); + this.eventBus._on("thumbnailrendered", ({ + pageNumber, + pdfPage + }) => { + const pageView = this._pages[pageNumber - 1]; + if (!this.#buffer.has(pageView)) { + pdfPage?.cleanup(); + } + }); + } + get pagesCount() { + return this._pages.length; + } + getPageView(index) { + return this._pages[index]; + } + getCachedPageViews() { + return new Set(this.#buffer); + } + get pageViewsReady() { + return this._pagesCapability.settled && this._pages.every(pageView => pageView?.pdfPage); + } + get renderForms() { + return this.#annotationMode === AnnotationMode.ENABLE_FORMS; + } + get enableScripting() { + return !!this._scriptingManager; + } + get currentPageNumber() { + return this._currentPageNumber; + } + set currentPageNumber(val) { + if (!Number.isInteger(val)) { + throw new Error("Invalid page number."); + } + if (!this.pdfDocument) { + return; + } + if (!this._setCurrentPageNumber(val, true)) { + console.error(`currentPageNumber: "${val}" is not a valid page.`); + } + } + _setCurrentPageNumber(val, resetCurrentPageView = false) { + if (this._currentPageNumber === val) { + if (resetCurrentPageView) { + this.#resetCurrentPageView(); + } + return true; + } + if (!(0 < val && val <= this.pagesCount)) { + return false; + } + const previous = this._currentPageNumber; + this._currentPageNumber = val; + this.eventBus.dispatch("pagechanging", { + source: this, + pageNumber: val, + pageLabel: this._pageLabels?.[val - 1] ?? null, + previous + }); + if (resetCurrentPageView) { + this.#resetCurrentPageView(); + } + return true; + } + get currentPageLabel() { + return this._pageLabels?.[this._currentPageNumber - 1] ?? null; + } + set currentPageLabel(val) { + if (!this.pdfDocument) { + return; + } + let page = val | 0; + if (this._pageLabels) { + const i = this._pageLabels.indexOf(val); + if (i >= 0) { + page = i + 1; + } + } + if (!this._setCurrentPageNumber(page, true)) { + console.error(`currentPageLabel: "${val}" is not a valid page.`); + } + } + get currentScale() { + return this._currentScale !== UNKNOWN_SCALE ? this._currentScale : DEFAULT_SCALE; + } + set currentScale(val) { + if (isNaN(val)) { + throw new Error("Invalid numeric scale."); + } + if (!this.pdfDocument) { + return; + } + this.#setScale(val, { + noScroll: false + }); + } + get currentScaleValue() { + return this._currentScaleValue; + } + set currentScaleValue(val) { + if (!this.pdfDocument) { + return; + } + this.#setScale(val, { + noScroll: false + }); + } + get pagesRotation() { + return this._pagesRotation; + } + set pagesRotation(rotation) { + if (!isValidRotation(rotation)) { + throw new Error("Invalid pages rotation angle."); + } + if (!this.pdfDocument) { + return; + } + rotation %= 360; + if (rotation < 0) { + rotation += 360; + } + if (this._pagesRotation === rotation) { + return; + } + this._pagesRotation = rotation; + const pageNumber = this._currentPageNumber; + this.refresh(true, { + rotation + }); + if (this._currentScaleValue) { + this.#setScale(this._currentScaleValue, { + noScroll: true + }); + } + this.eventBus.dispatch("rotationchanging", { + source: this, + pagesRotation: rotation, + pageNumber + }); + if (this.defaultRenderingQueue) { + this.update(); + } + } + get firstPagePromise() { + return this.pdfDocument ? this._firstPageCapability.promise : null; + } + get onePageRendered() { + return this.pdfDocument ? this._onePageRenderedCapability.promise : null; + } + get pagesPromise() { + return this.pdfDocument ? this._pagesCapability.promise : null; + } + get _layerProperties() { + const self = this; + return shadow(this, "_layerProperties", { + get annotationEditorUIManager() { + return self.#annotationEditorUIManager; + }, + get annotationStorage() { + return self.pdfDocument?.annotationStorage; + }, + get downloadManager() { + return self.downloadManager; + }, + get enableScripting() { + return !!self._scriptingManager; + }, + get fieldObjectsPromise() { + return self.pdfDocument?.getFieldObjects(); + }, + get findController() { + return self.findController; + }, + get hasJSActionsPromise() { + return self.pdfDocument?.hasJSActions(); + }, + get linkService() { + return self.linkService; + } + }); + } + #initializePermissions(permissions) { + const params = { + annotationEditorMode: this.#annotationEditorMode, + annotationMode: this.#annotationMode, + textLayerMode: this.#textLayerMode + }; + if (!permissions) { + return params; + } + if (!permissions.includes(PermissionFlag.COPY) && this.#textLayerMode === TextLayerMode.ENABLE) { + params.textLayerMode = TextLayerMode.ENABLE_PERMISSIONS; + } + if (!permissions.includes(PermissionFlag.MODIFY_CONTENTS)) { + params.annotationEditorMode = AnnotationEditorType.DISABLE; + } + if (!permissions.includes(PermissionFlag.MODIFY_ANNOTATIONS) && !permissions.includes(PermissionFlag.FILL_INTERACTIVE_FORMS) && this.#annotationMode === AnnotationMode.ENABLE_FORMS) { + params.annotationMode = AnnotationMode.ENABLE; + } + return params; + } + async #onePageRenderedOrForceFetch() { + if (document.visibilityState === "hidden" || !this.container.offsetParent || this._getVisiblePages().views.length === 0) { + return; + } + const visibilityChangePromise = new Promise(resolve => { + this.#onVisibilityChange = () => { + if (document.visibilityState !== "hidden") { + return; + } + resolve(); + }; + document.addEventListener("visibilitychange", this.#onVisibilityChange); + }); + await Promise.race([this._onePageRenderedCapability.promise, visibilityChangePromise]); + document.removeEventListener("visibilitychange", this.#onVisibilityChange); + this.#onVisibilityChange = null; + } + async getAllText() { + const texts = []; + const buffer = []; + for (let pageNum = 1, pagesCount = this.pdfDocument.numPages; pageNum <= pagesCount; ++pageNum) { + if (this.#interruptCopyCondition) { + return null; + } + buffer.length = 0; + const page = await this.pdfDocument.getPage(pageNum); + const { + items + } = await page.getTextContent(); + for (const item of items) { + if (item.str) { + buffer.push(item.str); + } + if (item.hasEOL) { + buffer.push("\n"); + } + } + texts.push(removeNullCharacters(buffer.join(""))); + } + return texts.join("\n"); + } + #copyCallback(textLayerMode, event) { + const selection = document.getSelection(); + const { + focusNode, + anchorNode + } = selection; + if (anchorNode && focusNode && selection.containsNode(this.#hiddenCopyElement)) { + if (this.#getAllTextInProgress || textLayerMode === TextLayerMode.ENABLE_PERMISSIONS) { + event.preventDefault(); + event.stopPropagation(); + return; + } + this.#getAllTextInProgress = true; + const savedCursor = this.container.style.cursor; + this.container.style.cursor = "wait"; + const interruptCopy = ev => this.#interruptCopyCondition = ev.key === "Escape"; + window.addEventListener("keydown", interruptCopy); + this.getAllText().then(async text => { + if (text !== null) { + await navigator.clipboard.writeText(text); + } + }).catch(reason => { + console.warn(`Something goes wrong when extracting the text: ${reason.message}`); + }).finally(() => { + this.#getAllTextInProgress = false; + this.#interruptCopyCondition = false; + window.removeEventListener("keydown", interruptCopy); + this.container.style.cursor = savedCursor; + }); + event.preventDefault(); + event.stopPropagation(); + } + } + setDocument(pdfDocument) { + if (this.pdfDocument) { + this.eventBus.dispatch("pagesdestroy", { + source: this + }); + this._cancelRendering(); + this._resetView(); + this.findController?.setDocument(null); + this._scriptingManager?.setDocument(null); + if (this.#annotationEditorUIManager) { + this.#annotationEditorUIManager.destroy(); + this.#annotationEditorUIManager = null; + } + } + this.pdfDocument = pdfDocument; + if (!pdfDocument) { + return; + } + const pagesCount = pdfDocument.numPages; + const firstPagePromise = pdfDocument.getPage(1); + const optionalContentConfigPromise = pdfDocument.getOptionalContentConfig(); + const permissionsPromise = this.#enablePermissions ? pdfDocument.getPermissions() : Promise.resolve(); + if (pagesCount > PagesCountLimit.FORCE_SCROLL_MODE_PAGE) { + console.warn("Forcing PAGE-scrolling for performance reasons, given the length of the document."); + const mode = this._scrollMode = ScrollMode.PAGE; + this.eventBus.dispatch("scrollmodechanged", { + source: this, + mode + }); + } + this._pagesCapability.promise.then(() => { + this.eventBus.dispatch("pagesloaded", { + source: this, + pagesCount + }); + }, () => {}); + this._onBeforeDraw = evt => { + const pageView = this._pages[evt.pageNumber - 1]; + if (!pageView) { + return; + } + this.#buffer.push(pageView); + }; + this.eventBus._on("pagerender", this._onBeforeDraw); + this._onAfterDraw = evt => { + if (evt.cssTransform || this._onePageRenderedCapability.settled) { + return; + } + this._onePageRenderedCapability.resolve({ + timestamp: evt.timestamp + }); + this.eventBus._off("pagerendered", this._onAfterDraw); + this._onAfterDraw = null; + }; + this.eventBus._on("pagerendered", this._onAfterDraw); + Promise.all([firstPagePromise, permissionsPromise]).then(([firstPdfPage, permissions]) => { + if (pdfDocument !== this.pdfDocument) { + return; + } + this._firstPageCapability.resolve(firstPdfPage); + this._optionalContentConfigPromise = optionalContentConfigPromise; + const { + annotationEditorMode, + annotationMode, + textLayerMode + } = this.#initializePermissions(permissions); + if (textLayerMode !== TextLayerMode.DISABLE) { + const element = this.#hiddenCopyElement = document.createElement("div"); + element.id = "hiddenCopyElement"; + this.viewer.before(element); + } + if (annotationEditorMode !== AnnotationEditorType.DISABLE) { + const mode = annotationEditorMode; + if (pdfDocument.isPureXfa) { + console.warn("Warning: XFA-editing is not implemented."); + } else if (isValidAnnotationEditorMode(mode)) { + this.#annotationEditorUIManager = new AnnotationEditorUIManager(this.container, this.viewer, this.#altTextManager, this.eventBus, pdfDocument, this.pageColors, this.#annotationEditorHighlightColors, this.#mlManager); + this.eventBus.dispatch("annotationeditoruimanager", { + source: this, + uiManager: this.#annotationEditorUIManager + }); + if (mode !== AnnotationEditorType.NONE) { + this.#annotationEditorUIManager.updateMode(mode); + } + } else { + console.error(`Invalid AnnotationEditor mode: ${mode}`); + } + } + const viewerElement = this._scrollMode === ScrollMode.PAGE ? null : this.viewer; + const scale = this.currentScale; + const viewport = firstPdfPage.getViewport({ + scale: scale * PixelsPerInch.PDF_TO_CSS_UNITS + }); + this.viewer.style.setProperty("--scale-factor", viewport.scale); + if (this.pageColors?.foreground === "CanvasText" || this.pageColors?.background === "Canvas") { + this.viewer.style.setProperty("--hcm-highlight-filter", pdfDocument.filterFactory.addHighlightHCMFilter("highlight", "CanvasText", "Canvas", "HighlightText", "Highlight")); + this.viewer.style.setProperty("--hcm-highlight-selected-filter", pdfDocument.filterFactory.addHighlightHCMFilter("highlight_selected", "CanvasText", "Canvas", "HighlightText", "ButtonText")); + } + for (let pageNum = 1; pageNum <= pagesCount; ++pageNum) { + const pageView = new PDFPageView({ + container: viewerElement, + eventBus: this.eventBus, + id: pageNum, + scale, + defaultViewport: viewport.clone(), + optionalContentConfigPromise, + renderingQueue: this.renderingQueue, + textLayerMode, + annotationMode, + imageResourcesPath: this.imageResourcesPath, + maxCanvasPixels: this.maxCanvasPixels, + pageColors: this.pageColors, + l10n: this.l10n, + layerProperties: this._layerProperties + }); + this._pages.push(pageView); + } + const firstPageView = this._pages[0]; + if (firstPageView) { + firstPageView.setPdfPage(firstPdfPage); + this.linkService.cachePageRef(1, firstPdfPage.ref); + } + if (this._scrollMode === ScrollMode.PAGE) { + this.#ensurePageViewVisible(); + } else if (this._spreadMode !== SpreadMode.NONE) { + this._updateSpreadMode(); + } + this.#onePageRenderedOrForceFetch().then(async () => { + this.findController?.setDocument(pdfDocument); + this._scriptingManager?.setDocument(pdfDocument); + if (this.#hiddenCopyElement) { + this.#copyCallbackBound = this.#copyCallback.bind(this, textLayerMode); + document.addEventListener("copy", this.#copyCallbackBound); + } + if (this.#annotationEditorUIManager) { + this.eventBus.dispatch("annotationeditormodechanged", { + source: this, + mode: this.#annotationEditorMode + }); + } + if (pdfDocument.loadingParams.disableAutoFetch || pagesCount > PagesCountLimit.FORCE_LAZY_PAGE_INIT) { + this._pagesCapability.resolve(); + return; + } + let getPagesLeft = pagesCount - 1; + if (getPagesLeft <= 0) { + this._pagesCapability.resolve(); + return; + } + for (let pageNum = 2; pageNum <= pagesCount; ++pageNum) { + const promise = pdfDocument.getPage(pageNum).then(pdfPage => { + const pageView = this._pages[pageNum - 1]; + if (!pageView.pdfPage) { + pageView.setPdfPage(pdfPage); + } + this.linkService.cachePageRef(pageNum, pdfPage.ref); + if (--getPagesLeft === 0) { + this._pagesCapability.resolve(); + } + }, reason => { + console.error(`Unable to get page ${pageNum} to initialize viewer`, reason); + if (--getPagesLeft === 0) { + this._pagesCapability.resolve(); + } + }); + if (pageNum % PagesCountLimit.PAUSE_EAGER_PAGE_INIT === 0) { + await promise; + } + } + }); + this.eventBus.dispatch("pagesinit", { + source: this + }); + pdfDocument.getMetadata().then(({ + info + }) => { + if (pdfDocument !== this.pdfDocument) { + return; + } + if (info.Language) { + this.viewer.lang = info.Language; + } + }); + if (this.defaultRenderingQueue) { + this.update(); + } + }).catch(reason => { + console.error("Unable to initialize viewer", reason); + this._pagesCapability.reject(reason); + }); + } + setPageLabels(labels) { + if (!this.pdfDocument) { + return; + } + if (!labels) { + this._pageLabels = null; + } else if (!(Array.isArray(labels) && this.pdfDocument.numPages === labels.length)) { + this._pageLabels = null; + console.error(`setPageLabels: Invalid page labels.`); + } else { + this._pageLabels = labels; + } + for (let i = 0, ii = this._pages.length; i < ii; i++) { + this._pages[i].setPageLabel(this._pageLabels?.[i] ?? null); + } + } + _resetView() { + this._pages = []; + this._currentPageNumber = 1; + this._currentScale = UNKNOWN_SCALE; + this._currentScaleValue = null; + this._pageLabels = null; + this.#buffer = new PDFPageViewBuffer(DEFAULT_CACHE_SIZE); + this._location = null; + this._pagesRotation = 0; + this._optionalContentConfigPromise = null; + this._firstPageCapability = new PromiseCapability(); + this._onePageRenderedCapability = new PromiseCapability(); + this._pagesCapability = new PromiseCapability(); + this._scrollMode = ScrollMode.VERTICAL; + this._previousScrollMode = ScrollMode.UNKNOWN; + this._spreadMode = SpreadMode.NONE; + this.#scrollModePageState = { + previousPageNumber: 1, + scrollDown: true, + pages: [] + }; + if (this._onBeforeDraw) { + this.eventBus._off("pagerender", this._onBeforeDraw); + this._onBeforeDraw = null; + } + if (this._onAfterDraw) { + this.eventBus._off("pagerendered", this._onAfterDraw); + this._onAfterDraw = null; + } + if (this.#onVisibilityChange) { + document.removeEventListener("visibilitychange", this.#onVisibilityChange); + this.#onVisibilityChange = null; + } + this.viewer.textContent = ""; + this._updateScrollMode(); + this.viewer.removeAttribute("lang"); + if (this.#hiddenCopyElement) { + document.removeEventListener("copy", this.#copyCallbackBound); + this.#copyCallbackBound = null; + this.#hiddenCopyElement.remove(); + this.#hiddenCopyElement = null; + } + } + #ensurePageViewVisible() { + if (this._scrollMode !== ScrollMode.PAGE) { + throw new Error("#ensurePageViewVisible: Invalid scrollMode value."); + } + const pageNumber = this._currentPageNumber, + state = this.#scrollModePageState, + viewer = this.viewer; + viewer.textContent = ""; + state.pages.length = 0; + if (this._spreadMode === SpreadMode.NONE && !this.isInPresentationMode) { + const pageView = this._pages[pageNumber - 1]; + viewer.append(pageView.div); + state.pages.push(pageView); + } else { + const pageIndexSet = new Set(), + parity = this._spreadMode - 1; + if (parity === -1) { + pageIndexSet.add(pageNumber - 1); + } else if (pageNumber % 2 !== parity) { + pageIndexSet.add(pageNumber - 1); + pageIndexSet.add(pageNumber); + } else { + pageIndexSet.add(pageNumber - 2); + pageIndexSet.add(pageNumber - 1); + } + const spread = document.createElement("div"); + spread.className = "spread"; + if (this.isInPresentationMode) { + const dummyPage = document.createElement("div"); + dummyPage.className = "dummyPage"; + spread.append(dummyPage); + } + for (const i of pageIndexSet) { + const pageView = this._pages[i]; + if (!pageView) { + continue; + } + spread.append(pageView.div); + state.pages.push(pageView); + } + viewer.append(spread); + } + state.scrollDown = pageNumber >= state.previousPageNumber; + state.previousPageNumber = pageNumber; + } + _scrollUpdate() { + if (this.pagesCount === 0) { + return; + } + this.update(); + } + #scrollIntoView(pageView, pageSpot = null) { + const { + div, + id + } = pageView; + if (this._currentPageNumber !== id) { + this._setCurrentPageNumber(id); + } + if (this._scrollMode === ScrollMode.PAGE) { + this.#ensurePageViewVisible(); + this.update(); + } + if (!pageSpot && !this.isInPresentationMode) { + const left = div.offsetLeft + div.clientLeft, + right = left + div.clientWidth; + const { + scrollLeft, + clientWidth + } = this.container; + if (this._scrollMode === ScrollMode.HORIZONTAL || left < scrollLeft || right > scrollLeft + clientWidth) { + pageSpot = { + left: 0, + top: 0 + }; + } + } + scrollIntoView(div, pageSpot); + if (!this._currentScaleValue && this._location) { + this._location = null; + } + } + #isSameScale(newScale) { + return newScale === this._currentScale || Math.abs(newScale - this._currentScale) < 1e-15; + } + #setScaleUpdatePages(newScale, newValue, { + noScroll = false, + preset = false, + drawingDelay = -1 + }) { + this._currentScaleValue = newValue.toString(); + if (this.#isSameScale(newScale)) { + if (preset) { + this.eventBus.dispatch("scalechanging", { + source: this, + scale: newScale, + presetValue: newValue + }); + } + return; + } + this.viewer.style.setProperty("--scale-factor", newScale * PixelsPerInch.PDF_TO_CSS_UNITS); + const postponeDrawing = drawingDelay >= 0 && drawingDelay < 1000; + this.refresh(true, { + scale: newScale, + drawingDelay: postponeDrawing ? drawingDelay : -1 + }); + if (postponeDrawing) { + this.#scaleTimeoutId = setTimeout(() => { + this.#scaleTimeoutId = null; + this.refresh(); + }, drawingDelay); + } + this._currentScale = newScale; + if (!noScroll) { + let page = this._currentPageNumber, + dest; + if (this._location && !(this.isInPresentationMode || this.isChangingPresentationMode)) { + page = this._location.pageNumber; + dest = [null, { + name: "XYZ" + }, this._location.left, this._location.top, null]; + } + this.scrollPageIntoView({ + pageNumber: page, + destArray: dest, + allowNegativeOffset: true + }); + } + this.eventBus.dispatch("scalechanging", { + source: this, + scale: newScale, + presetValue: preset ? newValue : undefined + }); + if (this.defaultRenderingQueue) { + this.update(); + } + } + get #pageWidthScaleFactor() { + if (this._spreadMode !== SpreadMode.NONE && this._scrollMode !== ScrollMode.HORIZONTAL) { + return 2; + } + return 1; + } + #setScale(value, options) { + let scale = parseFloat(value); + if (scale > 0) { + options.preset = false; + this.#setScaleUpdatePages(scale, value, options); + } else { + const currentPage = this._pages[this._currentPageNumber - 1]; + if (!currentPage) { + return; + } + let hPadding = SCROLLBAR_PADDING, + vPadding = VERTICAL_PADDING; + if (this.isInPresentationMode) { + hPadding = vPadding = 4; + if (this._spreadMode !== SpreadMode.NONE) { + hPadding *= 2; + } + } else if (this._scrollMode === ScrollMode.HORIZONTAL) { + [hPadding, vPadding] = [vPadding, hPadding]; + } + const pageWidthScale = (this.container.clientWidth - hPadding) / currentPage.width * currentPage.scale / this.#pageWidthScaleFactor; + const pageHeightScale = (this.container.clientHeight - vPadding) / currentPage.height * currentPage.scale; + switch (value) { + case "page-actual": + scale = 1; + break; + case "page-width": + scale = pageWidthScale; + break; + case "page-height": + scale = pageHeightScale; + break; + case "page-fit": + scale = Math.min(pageWidthScale, pageHeightScale); + break; + case "auto": + const horizontalScale = isPortraitOrientation(currentPage) ? pageWidthScale : Math.min(pageHeightScale, pageWidthScale); + scale = Math.min(MAX_AUTO_SCALE, horizontalScale); + break; + default: + console.error(`#setScale: "${value}" is an unknown zoom value.`); + return; + } + options.preset = true; + this.#setScaleUpdatePages(scale, value, options); + } + } + #resetCurrentPageView() { + const pageView = this._pages[this._currentPageNumber - 1]; + if (this.isInPresentationMode) { + this.#setScale(this._currentScaleValue, { + noScroll: true + }); + } + this.#scrollIntoView(pageView); + } + pageLabelToPageNumber(label) { + if (!this._pageLabels) { + return null; + } + const i = this._pageLabels.indexOf(label); + if (i < 0) { + return null; + } + return i + 1; + } + scrollPageIntoView({ + pageNumber, + destArray = null, + allowNegativeOffset = false, + ignoreDestinationZoom = false + }) { + if (!this.pdfDocument) { + return; + } + const pageView = Number.isInteger(pageNumber) && this._pages[pageNumber - 1]; + if (!pageView) { + console.error(`scrollPageIntoView: "${pageNumber}" is not a valid pageNumber parameter.`); + return; + } + if (this.isInPresentationMode || !destArray) { + this._setCurrentPageNumber(pageNumber, true); + return; + } + let x = 0, + y = 0; + let width = 0, + height = 0, + widthScale, + heightScale; + const changeOrientation = pageView.rotation % 180 !== 0; + const pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / PixelsPerInch.PDF_TO_CSS_UNITS; + const pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / PixelsPerInch.PDF_TO_CSS_UNITS; + let scale = 0; + switch (destArray[1].name) { + case "XYZ": + x = destArray[2]; + y = destArray[3]; + scale = destArray[4]; + x = x !== null ? x : 0; + y = y !== null ? y : pageHeight; + break; + case "Fit": + case "FitB": + scale = "page-fit"; + break; + case "FitH": + case "FitBH": + y = destArray[2]; + scale = "page-width"; + if (y === null && this._location) { + x = this._location.left; + y = this._location.top; + } else if (typeof y !== "number" || y < 0) { + y = pageHeight; + } + break; + case "FitV": + case "FitBV": + x = destArray[2]; + width = pageWidth; + height = pageHeight; + scale = "page-height"; + break; + case "FitR": + x = destArray[2]; + y = destArray[3]; + width = destArray[4] - x; + height = destArray[5] - y; + let hPadding = SCROLLBAR_PADDING, + vPadding = VERTICAL_PADDING; + widthScale = (this.container.clientWidth - hPadding) / width / PixelsPerInch.PDF_TO_CSS_UNITS; + heightScale = (this.container.clientHeight - vPadding) / height / PixelsPerInch.PDF_TO_CSS_UNITS; + scale = Math.min(Math.abs(widthScale), Math.abs(heightScale)); + break; + default: + console.error(`scrollPageIntoView: "${destArray[1].name}" is not a valid destination type.`); + return; + } + if (!ignoreDestinationZoom) { + if (scale && scale !== this._currentScale) { + this.currentScaleValue = scale; + } else if (this._currentScale === UNKNOWN_SCALE) { + this.currentScaleValue = DEFAULT_SCALE_VALUE; + } + } + if (scale === "page-fit" && !destArray[4]) { + this.#scrollIntoView(pageView); + return; + } + const boundingRect = [pageView.viewport.convertToViewportPoint(x, y), pageView.viewport.convertToViewportPoint(x + width, y + height)]; + let left = Math.min(boundingRect[0][0], boundingRect[1][0]); + let top = Math.min(boundingRect[0][1], boundingRect[1][1]); + if (!allowNegativeOffset) { + left = Math.max(left, 0); + top = Math.max(top, 0); + } + this.#scrollIntoView(pageView, { + left, + top + }); + } + _updateLocation(firstPage) { + const currentScale = this._currentScale; + const currentScaleValue = this._currentScaleValue; + const normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ? Math.round(currentScale * 10000) / 100 : currentScaleValue; + const pageNumber = firstPage.id; + const currentPageView = this._pages[pageNumber - 1]; + const container = this.container; + const topLeft = currentPageView.getPagePoint(container.scrollLeft - firstPage.x, container.scrollTop - firstPage.y); + const intLeft = Math.round(topLeft[0]); + const intTop = Math.round(topLeft[1]); + let pdfOpenParams = `#page=${pageNumber}`; + if (!this.isInPresentationMode) { + pdfOpenParams += `&zoom=${normalizedScaleValue},${intLeft},${intTop}`; + } + this._location = { + pageNumber, + scale: normalizedScaleValue, + top: intTop, + left: intLeft, + rotation: this._pagesRotation, + pdfOpenParams + }; + } + update() { + const visible = this._getVisiblePages(); + const visiblePages = visible.views, + numVisiblePages = visiblePages.length; + if (numVisiblePages === 0) { + return; + } + const newCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * numVisiblePages + 1); + this.#buffer.resize(newCacheSize, visible.ids); + this.renderingQueue.renderHighestPriority(visible); + const isSimpleLayout = this._spreadMode === SpreadMode.NONE && (this._scrollMode === ScrollMode.PAGE || this._scrollMode === ScrollMode.VERTICAL); + const currentId = this._currentPageNumber; + let stillFullyVisible = false; + for (const page of visiblePages) { + if (page.percent < 100) { + break; + } + if (page.id === currentId && isSimpleLayout) { + stillFullyVisible = true; + break; + } + } + this._setCurrentPageNumber(stillFullyVisible ? currentId : visiblePages[0].id); + this._updateLocation(visible.first); + this.eventBus.dispatch("updateviewarea", { + source: this, + location: this._location + }); + } + containsElement(element) { + return this.container.contains(element); + } + focus() { + this.container.focus(); + } + get _isContainerRtl() { + return getComputedStyle(this.container).direction === "rtl"; + } + get isInPresentationMode() { + return this.presentationModeState === PresentationModeState.FULLSCREEN; + } + get isChangingPresentationMode() { + return this.presentationModeState === PresentationModeState.CHANGING; + } + get isHorizontalScrollbarEnabled() { + return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth; + } + get isVerticalScrollbarEnabled() { + return this.isInPresentationMode ? false : this.container.scrollHeight > this.container.clientHeight; + } + _getVisiblePages() { + const views = this._scrollMode === ScrollMode.PAGE ? this.#scrollModePageState.pages : this._pages, + horizontal = this._scrollMode === ScrollMode.HORIZONTAL, + rtl = horizontal && this._isContainerRtl; + return getVisibleElements({ + scrollEl: this.container, + views, + sortByVisibility: true, + horizontal, + rtl + }); + } + cleanup() { + for (const pageView of this._pages) { + if (pageView.renderingState !== RenderingStates.FINISHED) { + pageView.reset(); + } + } + } + _cancelRendering() { + for (const pageView of this._pages) { + pageView.cancelRendering(); + } + } + async #ensurePdfPageLoaded(pageView) { + if (pageView.pdfPage) { + return pageView.pdfPage; + } + try { + const pdfPage = await this.pdfDocument.getPage(pageView.id); + if (!pageView.pdfPage) { + pageView.setPdfPage(pdfPage); + } + if (!this.linkService._cachedPageNumber?.(pdfPage.ref)) { + this.linkService.cachePageRef(pageView.id, pdfPage.ref); + } + return pdfPage; + } catch (reason) { + console.error("Unable to get page for page view", reason); + return null; + } + } + #getScrollAhead(visible) { + if (visible.first?.id === 1) { + return true; + } else if (visible.last?.id === this.pagesCount) { + return false; + } + switch (this._scrollMode) { + case ScrollMode.PAGE: + return this.#scrollModePageState.scrollDown; + case ScrollMode.HORIZONTAL: + return this.scroll.right; + } + return this.scroll.down; + } + forceRendering(currentlyVisiblePages) { + const visiblePages = currentlyVisiblePages || this._getVisiblePages(); + const scrollAhead = this.#getScrollAhead(visiblePages); + const preRenderExtra = this._spreadMode !== SpreadMode.NONE && this._scrollMode !== ScrollMode.HORIZONTAL; + const pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, scrollAhead, preRenderExtra); + if (pageView) { + this.#ensurePdfPageLoaded(pageView).then(() => { + this.renderingQueue.renderView(pageView); + }); + return true; + } + return false; + } + get hasEqualPageSizes() { + const firstPageView = this._pages[0]; + for (let i = 1, ii = this._pages.length; i < ii; ++i) { + const pageView = this._pages[i]; + if (pageView.width !== firstPageView.width || pageView.height !== firstPageView.height) { + return false; + } + } + return true; + } + getPagesOverview() { + let initialOrientation; + return this._pages.map(pageView => { + const viewport = pageView.pdfPage.getViewport({ + scale: 1 + }); + const orientation = isPortraitOrientation(viewport); + if (initialOrientation === undefined) { + initialOrientation = orientation; + } else if (this.enablePrintAutoRotate && orientation !== initialOrientation) { + return { + width: viewport.height, + height: viewport.width, + rotation: (viewport.rotation - 90) % 360 + }; + } + return { + width: viewport.width, + height: viewport.height, + rotation: viewport.rotation + }; + }); + } + get optionalContentConfigPromise() { + if (!this.pdfDocument) { + return Promise.resolve(null); + } + if (!this._optionalContentConfigPromise) { + console.error("optionalContentConfigPromise: Not initialized yet."); + return this.pdfDocument.getOptionalContentConfig(); + } + return this._optionalContentConfigPromise; + } + set optionalContentConfigPromise(promise) { + if (!(promise instanceof Promise)) { + throw new Error(`Invalid optionalContentConfigPromise: ${promise}`); + } + if (!this.pdfDocument) { + return; + } + if (!this._optionalContentConfigPromise) { + return; + } + this._optionalContentConfigPromise = promise; + this.refresh(false, { + optionalContentConfigPromise: promise + }); + this.eventBus.dispatch("optionalcontentconfigchanged", { + source: this, + promise + }); + } + get scrollMode() { + return this._scrollMode; + } + set scrollMode(mode) {} + _updateScrollMode(pageNumber = null) { + const scrollMode = this._scrollMode, + viewer = this.viewer; + viewer.classList.toggle("scrollHorizontal", scrollMode === ScrollMode.HORIZONTAL); + viewer.classList.toggle("scrollWrapped", scrollMode === ScrollMode.WRAPPED); + if (!this.pdfDocument || !pageNumber) { + return; + } + if (scrollMode === ScrollMode.PAGE) { + this.#ensurePageViewVisible(); + } else if (this._previousScrollMode === ScrollMode.PAGE) { + this._updateSpreadMode(); + } + if (this._currentScaleValue && isNaN(this._currentScaleValue)) { + this.#setScale(this._currentScaleValue, { + noScroll: true + }); + } + this._setCurrentPageNumber(pageNumber, true); + this.update(); + } + get spreadMode() { + return this._spreadMode; + } + set spreadMode(mode) {} + _updateSpreadMode(pageNumber = null) { + if (!this.pdfDocument) { + return; + } + const viewer = this.viewer, + pages = this._pages; + if (this._scrollMode === ScrollMode.PAGE) { + this.#ensurePageViewVisible(); + } else { + viewer.textContent = ""; + if (this._spreadMode === SpreadMode.NONE) { + for (const pageView of this._pages) { + viewer.append(pageView.div); + } + } else { + const parity = this._spreadMode - 1; + let spread = null; + for (let i = 0, ii = pages.length; i < ii; ++i) { + if (spread === null) { + spread = document.createElement("div"); + spread.className = "spread"; + viewer.append(spread); + } else if (i % 2 === parity) { + spread = spread.cloneNode(false); + viewer.append(spread); + } + spread.append(pages[i].div); + } + } + } + if (!pageNumber) { + return; + } + if (this._currentScaleValue && isNaN(this._currentScaleValue)) { + this.#setScale(this._currentScaleValue, { + noScroll: true + }); + } + this._setCurrentPageNumber(pageNumber, true); + this.update(); + } + _getPageAdvance(currentPageNumber, previous = false) { + switch (this._scrollMode) { + case ScrollMode.WRAPPED: + { + const { + views + } = this._getVisiblePages(), + pageLayout = new Map(); + for (const { + id, + y, + percent, + widthPercent + } of views) { + if (percent === 0 || widthPercent < 100) { + continue; + } + let yArray = pageLayout.get(y); + if (!yArray) { + pageLayout.set(y, yArray ||= []); + } + yArray.push(id); + } + for (const yArray of pageLayout.values()) { + const currentIndex = yArray.indexOf(currentPageNumber); + if (currentIndex === -1) { + continue; + } + const numPages = yArray.length; + if (numPages === 1) { + break; + } + if (previous) { + for (let i = currentIndex - 1, ii = 0; i >= ii; i--) { + const currentId = yArray[i], + expectedId = yArray[i + 1] - 1; + if (currentId < expectedId) { + return currentPageNumber - expectedId; + } + } + } else { + for (let i = currentIndex + 1, ii = numPages; i < ii; i++) { + const currentId = yArray[i], + expectedId = yArray[i - 1] + 1; + if (currentId > expectedId) { + return expectedId - currentPageNumber; + } + } + } + if (previous) { + const firstId = yArray[0]; + if (firstId < currentPageNumber) { + return currentPageNumber - firstId + 1; + } + } else { + const lastId = yArray[numPages - 1]; + if (lastId > currentPageNumber) { + return lastId - currentPageNumber + 1; + } + } + break; + } + break; + } + case ScrollMode.HORIZONTAL: + { + break; + } + case ScrollMode.PAGE: + case ScrollMode.VERTICAL: + { + if (this._spreadMode === SpreadMode.NONE) { + break; + } + const parity = this._spreadMode - 1; + if (previous && currentPageNumber % 2 !== parity) { + break; + } else if (!previous && currentPageNumber % 2 === parity) { + break; + } + const { + views + } = this._getVisiblePages(), + expectedId = previous ? currentPageNumber - 1 : currentPageNumber + 1; + for (const { + id, + percent, + widthPercent + } of views) { + if (id !== expectedId) { + continue; + } + if (percent > 0 && widthPercent === 100) { + return 2; + } + break; + } + break; + } + } + return 1; + } + nextPage() { + const currentPageNumber = this._currentPageNumber, + pagesCount = this.pagesCount; + if (currentPageNumber >= pagesCount) { + return false; + } + const advance = this._getPageAdvance(currentPageNumber, false) || 1; + this.currentPageNumber = Math.min(currentPageNumber + advance, pagesCount); + return true; + } + previousPage() { + const currentPageNumber = this._currentPageNumber; + if (currentPageNumber <= 1) { + return false; + } + const advance = this._getPageAdvance(currentPageNumber, true) || 1; + this.currentPageNumber = Math.max(currentPageNumber - advance, 1); + return true; + } + increaseScale({ + drawingDelay, + scaleFactor, + steps + } = {}) { + if (!this.pdfDocument) { + return; + } + let newScale = this._currentScale; + if (scaleFactor > 1) { + newScale = Math.round(newScale * scaleFactor * 100) / 100; + } else { + steps ??= 1; + do { + newScale = Math.ceil((newScale * DEFAULT_SCALE_DELTA).toFixed(2) * 10) / 10; + } while (--steps > 0 && newScale < MAX_SCALE); + } + this.#setScale(Math.min(MAX_SCALE, newScale), { + noScroll: false, + drawingDelay + }); + } + decreaseScale({ + drawingDelay, + scaleFactor, + steps + } = {}) { + if (!this.pdfDocument) { + return; + } + let newScale = this._currentScale; + if (scaleFactor > 0 && scaleFactor < 1) { + newScale = Math.round(newScale * scaleFactor * 100) / 100; + } else { + steps ??= 1; + do { + newScale = Math.floor((newScale / DEFAULT_SCALE_DELTA).toFixed(2) * 10) / 10; + } while (--steps > 0 && newScale > MIN_SCALE); + } + this.#setScale(Math.max(MIN_SCALE, newScale), { + noScroll: false, + drawingDelay + }); + } + #updateContainerHeightCss(height = this.container.clientHeight) { + if (height !== this.#previousContainerHeight) { + this.#previousContainerHeight = height; + docStyle.setProperty("--viewer-container-height", `${height}px`); + } + } + #resizeObserverCallback(entries) { + for (const entry of entries) { + if (entry.target === this.container) { + this.#updateContainerHeightCss(Math.floor(entry.borderBoxSize[0].blockSize)); + this.#containerTopLeft = null; + break; + } + } + } + get containerTopLeft() { + return this.#containerTopLeft ||= [this.container.offsetTop, this.container.offsetLeft]; + } + get annotationEditorMode() { + return this.#annotationEditorUIManager ? this.#annotationEditorMode : AnnotationEditorType.DISABLE; + } + set annotationEditorMode({ + mode, + editId = null, + isFromKeyboard = false + }) { + if (!this.#annotationEditorUIManager) { + throw new Error(`The AnnotationEditor is not enabled.`); + } + if (this.#annotationEditorMode === mode) { + return; + } + if (!isValidAnnotationEditorMode(mode)) { + throw new Error(`Invalid AnnotationEditor mode: ${mode}`); + } + if (!this.pdfDocument) { + return; + } + this.#annotationEditorMode = mode; + this.eventBus.dispatch("annotationeditormodechanged", { + source: this, + mode + }); + this.#annotationEditorUIManager.updateMode(mode, editId, isFromKeyboard); + } + set annotationEditorParams({ + type, + value + }) { + if (!this.#annotationEditorUIManager) { + throw new Error(`The AnnotationEditor is not enabled.`); + } + this.#annotationEditorUIManager.updateParams(type, value); + } + refresh(noUpdate = false, updateArgs = Object.create(null)) { + if (!this.pdfDocument) { + return; + } + for (const pageView of this._pages) { + pageView.update(updateArgs); + } + if (this.#scaleTimeoutId !== null) { + clearTimeout(this.#scaleTimeoutId); + this.#scaleTimeoutId = null; + } + if (!noUpdate) { + this.update(); + } + } +} + +;// CONCATENATED MODULE: ./web/toolbar-geckoview.js +class Toolbar { + #buttons; + #eventBus; + constructor(options, eventBus, nimbusData) { + this.#eventBus = eventBus; + const buttons = [{ + element: options.download, + eventName: "download", + nimbusName: "download-button" + }, { + element: options.openInApp, + eventName: "openinexternalapp", + nimbusName: "open-in-app-button" + }]; + if (nimbusData) { + this.#buttons = []; + for (const button of buttons) { + if (nimbusData[button.nimbusName]) { + this.#buttons.push(button); + } else { + button.element.remove(); + } + } + if (this.#buttons.length > 0) { + options.container.classList.add("show"); + } else { + options.container.remove(); + options.mainContainer.classList.add("noToolbar"); + } + } else { + options.container.classList.add("show"); + this.#buttons = buttons; + } + this.#bindListeners(options); + } + setPageNumber(pageNumber, pageLabel) {} + setPagesCount(pagesCount, hasPageLabels) {} + setPageScale(pageScaleValue, pageScale) {} + reset() {} + #bindListeners(options) { + for (const { + element, + eventName, + eventDetails + } of this.#buttons) { + element.addEventListener("click", evt => { + if (eventName !== null) { + this.#eventBus.dispatch(eventName, { + source: this, + ...eventDetails + }); + this.#eventBus.dispatch("reporttelemetry", { + source: this, + details: { + type: "gv-buttons", + data: { + id: `${element.id}_tapped` + } + } + }); + } + }); + } + } + updateLoadingIndicatorState(loading = false) {} +} + +;// CONCATENATED MODULE: ./web/view_history.js +const DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20; +class ViewHistory { + constructor(fingerprint, cacheSize = DEFAULT_VIEW_HISTORY_CACHE_SIZE) { + this.fingerprint = fingerprint; + this.cacheSize = cacheSize; + this._initializedPromise = this._readFromStorage().then(databaseStr => { + const database = JSON.parse(databaseStr || "{}"); + let index = -1; + if (!Array.isArray(database.files)) { + database.files = []; + } else { + while (database.files.length >= this.cacheSize) { + database.files.shift(); + } + for (let i = 0, ii = database.files.length; i < ii; i++) { + const branch = database.files[i]; + if (branch.fingerprint === this.fingerprint) { + index = i; + break; + } + } + } + if (index === -1) { + index = database.files.push({ + fingerprint: this.fingerprint + }) - 1; + } + this.file = database.files[index]; + this.database = database; + }); + } + async _writeToStorage() { + const databaseStr = JSON.stringify(this.database); + sessionStorage.setItem("pdfjs.history", databaseStr); + } + async _readFromStorage() { + return sessionStorage.getItem("pdfjs.history"); + } + async set(name, val) { + await this._initializedPromise; + this.file[name] = val; + return this._writeToStorage(); + } + async setMultiple(properties) { + await this._initializedPromise; + for (const name in properties) { + this.file[name] = properties[name]; + } + return this._writeToStorage(); + } + async get(name, defaultValue) { + await this._initializedPromise; + const val = this.file[name]; + return val !== undefined ? val : defaultValue; + } + async getMultiple(properties) { + await this._initializedPromise; + const values = Object.create(null); + for (const name in properties) { + const val = this.file[name]; + values[name] = val !== undefined ? val : properties[name]; + } + return values; + } +} + +;// CONCATENATED MODULE: ./web/app.js + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +const FORCE_PAGES_LOADED_TIMEOUT = 10000; +const WHEEL_ZOOM_DISABLED_TIMEOUT = 1000; +const ViewOnLoad = { + UNKNOWN: -1, + PREVIOUS: 0, + INITIAL: 1 +}; +const PDFViewerApplication = { + initialBookmark: document.location.hash.substring(1), + _initializedCapability: new PromiseCapability(), + appConfig: null, + pdfDocument: null, + pdfLoadingTask: null, + printService: null, + pdfViewer: null, + pdfThumbnailViewer: null, + pdfRenderingQueue: null, + pdfPresentationMode: null, + pdfDocumentProperties: null, + pdfLinkService: null, + pdfHistory: null, + pdfSidebar: null, + pdfOutlineViewer: null, + pdfAttachmentViewer: null, + pdfLayerViewer: null, + pdfCursorTools: null, + pdfScriptingManager: null, + store: null, + downloadManager: null, + overlayManager: null, + preferences: null, + toolbar: null, + secondaryToolbar: null, + eventBus: null, + l10n: null, + annotationEditorParams: null, + isInitialViewSet: false, + downloadComplete: false, + isViewerEmbedded: window.parent !== window, + url: "", + baseUrl: "", + _downloadUrl: "", + _boundEvents: Object.create(null), + documentInfo: null, + metadata: null, + _contentDispositionFilename: null, + _contentLength: null, + _saveInProgress: false, + _wheelUnusedTicks: 0, + _wheelUnusedFactor: 1, + _touchUnusedTicks: 0, + _touchUnusedFactor: 1, + _PDFBug: null, + _hasAnnotationEditors: false, + _title: document.title, + _printAnnotationStoragePromise: null, + _touchInfo: null, + _isCtrlKeyDown: false, + _nimbusDataPromise: null, + _caretBrowsing: null, + _isScrolling: false, + _lastScrollTop: 0, + _lastScrollLeft: 0, + async initialize(appConfig) { + let l10nPromise; + l10nPromise = this.externalServices.createL10n(); + this.appConfig = appConfig; + this._nimbusDataPromise = this.externalServices.getNimbusExperimentData(); + try { + await this.preferences.initializedPromise; + } catch (ex) { + console.error(`initialize: "${ex.message}".`); + } + if (AppOptions.get("pdfBugEnabled")) { + await this._parseHashParams(); + } + this.l10n = await l10nPromise; + document.getElementsByTagName("html")[0].dir = this.l10n.getDirection(); + if (this.isViewerEmbedded && AppOptions.get("externalLinkTarget") === LinkTarget.NONE) { + AppOptions.set("externalLinkTarget", LinkTarget.TOP); + } + await this._initializeViewerComponents(); + this.bindEvents(); + this.bindWindowEvents(); + this._initializedCapability.resolve(); + }, + async _parseHashParams() { + const hash = document.location.hash.substring(1); + if (!hash) { + return; + } + const { + mainContainer, + viewerContainer + } = this.appConfig, + params = parseQueryString(hash); + if (params.get("disableworker") === "true") { + try { + await loadFakeWorker(); + } catch (ex) { + console.error(`_parseHashParams: "${ex.message}".`); + } + } + if (params.has("disablerange")) { + AppOptions.set("disableRange", params.get("disablerange") === "true"); + } + if (params.has("disablestream")) { + AppOptions.set("disableStream", params.get("disablestream") === "true"); + } + if (params.has("disableautofetch")) { + AppOptions.set("disableAutoFetch", params.get("disableautofetch") === "true"); + } + if (params.has("disablefontface")) { + AppOptions.set("disableFontFace", params.get("disablefontface") === "true"); + } + if (params.has("disablehistory")) { + AppOptions.set("disableHistory", params.get("disablehistory") === "true"); + } + if (params.has("verbosity")) { + AppOptions.set("verbosity", params.get("verbosity") | 0); + } + if (params.has("textlayer")) { + switch (params.get("textlayer")) { + case "off": + AppOptions.set("textLayerMode", TextLayerMode.DISABLE); + break; + case "visible": + case "shadow": + case "hover": + viewerContainer.classList.add(`textLayer-${params.get("textlayer")}`); + try { + await loadPDFBug(this); + this._PDFBug.loadCSS(); + } catch (ex) { + console.error(`_parseHashParams: "${ex.message}".`); + } + break; + } + } + if (params.has("pdfbug")) { + AppOptions.set("pdfBug", true); + AppOptions.set("fontExtraProperties", true); + const enabled = params.get("pdfbug").split(","); + try { + await loadPDFBug(this); + this._PDFBug.init(mainContainer, enabled); + } catch (ex) { + console.error(`_parseHashParams: "${ex.message}".`); + } + } + }, + async _initializeViewerComponents() { + const { + appConfig, + externalServices, + l10n + } = this; + const eventBus = AppOptions.get("isInAutomation") ? new AutomationEventBus() : new EventBus(); + this.eventBus = eventBus; + this.overlayManager = new OverlayManager(); + const pdfRenderingQueue = new PDFRenderingQueue(); + pdfRenderingQueue.onIdle = this._cleanup.bind(this); + this.pdfRenderingQueue = pdfRenderingQueue; + const pdfLinkService = new PDFLinkService({ + eventBus, + externalLinkTarget: AppOptions.get("externalLinkTarget"), + externalLinkRel: AppOptions.get("externalLinkRel"), + ignoreDestinationZoom: AppOptions.get("ignoreDestinationZoom") + }); + this.pdfLinkService = pdfLinkService; + const downloadManager = this.downloadManager = new DownloadManager(); + const findController = new PDFFindController({ + linkService: pdfLinkService, + eventBus, + updateMatchesCountOnProgress: false + }); + this.findController = findController; + const pdfScriptingManager = new PDFScriptingManager({ + eventBus, + externalServices, + docProperties: this._scriptingDocProperties.bind(this) + }); + this.pdfScriptingManager = pdfScriptingManager; + const container = appConfig.mainContainer, + viewer = appConfig.viewerContainer; + const annotationEditorMode = AppOptions.get("annotationEditorMode"); + const isOffscreenCanvasSupported = AppOptions.get("isOffscreenCanvasSupported") && FeatureTest.isOffscreenCanvasSupported; + const pageColors = AppOptions.get("forcePageColors") || window.matchMedia("(forced-colors: active)").matches ? { + background: AppOptions.get("pageColorsBackground"), + foreground: AppOptions.get("pageColorsForeground") + } : null; + const altTextManager = appConfig.altTextDialog ? new AltTextManager(appConfig.altTextDialog, container, this.overlayManager, eventBus) : null; + const pdfViewer = new PDFViewer({ + container, + viewer, + eventBus, + renderingQueue: pdfRenderingQueue, + linkService: pdfLinkService, + downloadManager, + altTextManager, + findController, + scriptingManager: AppOptions.get("enableScripting") && pdfScriptingManager, + l10n, + textLayerMode: AppOptions.get("textLayerMode"), + annotationMode: AppOptions.get("annotationMode"), + annotationEditorMode, + annotationEditorHighlightColors: AppOptions.get("highlightEditorColors"), + imageResourcesPath: AppOptions.get("imageResourcesPath"), + enablePrintAutoRotate: AppOptions.get("enablePrintAutoRotate"), + maxCanvasPixels: AppOptions.get("maxCanvasPixels"), + enablePermissions: AppOptions.get("enablePermissions"), + pageColors, + mlManager: this.mlManager + }); + this.pdfViewer = pdfViewer; + pdfRenderingQueue.setViewer(pdfViewer); + pdfLinkService.setViewer(pdfViewer); + pdfScriptingManager.setViewer(pdfViewer); + if (appConfig.sidebar?.thumbnailView) { + this.pdfThumbnailViewer = new PDFThumbnailViewer({ + container: appConfig.sidebar.thumbnailView, + eventBus, + renderingQueue: pdfRenderingQueue, + linkService: pdfLinkService, + pageColors + }); + pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer); + } + if (!this.isViewerEmbedded && !AppOptions.get("disableHistory")) { + this.pdfHistory = new PDFHistory({ + linkService: pdfLinkService, + eventBus + }); + pdfLinkService.setHistory(this.pdfHistory); + } + if (!this.supportsIntegratedFind && appConfig.findBar) { + this.findBar = new PDFFindBar(appConfig.findBar, eventBus); + } + if (appConfig.annotationEditorParams) { + if (annotationEditorMode !== AnnotationEditorType.DISABLE) { + if (AppOptions.get("enableStampEditor") && isOffscreenCanvasSupported) { + appConfig.toolbar?.editorStampButton?.classList.remove("hidden"); + } + const editorHighlightButton = appConfig.toolbar?.editorHighlightButton; + if (editorHighlightButton && AppOptions.get("enableHighlightEditor")) { + editorHighlightButton.hidden = false; + } + this.annotationEditorParams = new AnnotationEditorParams(appConfig.annotationEditorParams, eventBus); + } else { + for (const id of ["editorModeButtons", "editorModeSeparator"]) { + document.getElementById(id)?.classList.add("hidden"); + } + } + } + if (appConfig.documentProperties) { + this.pdfDocumentProperties = new PDFDocumentProperties(appConfig.documentProperties, this.overlayManager, eventBus, l10n, () => this._docFilename); + } + if (appConfig.secondaryToolbar?.cursorHandToolButton) { + this.pdfCursorTools = new PDFCursorTools({ + container, + eventBus, + cursorToolOnLoad: AppOptions.get("cursorToolOnLoad") + }); + } + if (appConfig.toolbar) { + this.toolbar = new Toolbar(appConfig.toolbar, eventBus, await this._nimbusDataPromise); + } + if (appConfig.secondaryToolbar) { + this.secondaryToolbar = new SecondaryToolbar(appConfig.secondaryToolbar, eventBus); + } + if (this.supportsFullscreen && appConfig.secondaryToolbar?.presentationModeButton) { + this.pdfPresentationMode = new PDFPresentationMode({ + container, + pdfViewer, + eventBus + }); + } + if (appConfig.passwordOverlay) { + this.passwordPrompt = new PasswordPrompt(appConfig.passwordOverlay, this.overlayManager, this.isViewerEmbedded); + } + if (appConfig.sidebar?.outlineView) { + this.pdfOutlineViewer = new PDFOutlineViewer({ + container: appConfig.sidebar.outlineView, + eventBus, + l10n, + linkService: pdfLinkService, + downloadManager + }); + } + if (appConfig.sidebar?.attachmentsView) { + this.pdfAttachmentViewer = new PDFAttachmentViewer({ + container: appConfig.sidebar.attachmentsView, + eventBus, + l10n, + downloadManager + }); + } + if (appConfig.sidebar?.layersView) { + this.pdfLayerViewer = new PDFLayerViewer({ + container: appConfig.sidebar.layersView, + eventBus, + l10n + }); + } + if (appConfig.sidebar) { + this.pdfSidebar = new PDFSidebar({ + elements: appConfig.sidebar, + eventBus, + l10n + }); + this.pdfSidebar.onToggled = this.forceRendering.bind(this); + this.pdfSidebar.onUpdateThumbnails = () => { + for (const pageView of pdfViewer.getCachedPageViews()) { + if (pageView.renderingState === RenderingStates.FINISHED) { + this.pdfThumbnailViewer.getThumbnail(pageView.id - 1)?.setImage(pageView); + } + } + this.pdfThumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber); + }; + } + }, + async run(config) { + this.preferences = new Preferences(); + await this.initialize(config); + const { + appConfig, + eventBus + } = this; + let file; + file = window.location.href; + if (!AppOptions.get("supportsDocumentFonts")) { + AppOptions.set("disableFontFace", true); + this.l10n.get("pdfjs-web-fonts-disabled").then(msg => { + console.warn(msg); + }); + } + if (!this.supportsPrinting) { + appConfig.toolbar?.print?.classList.add("hidden"); + appConfig.secondaryToolbar?.printButton.classList.add("hidden"); + } + if (!this.supportsFullscreen) { + appConfig.secondaryToolbar?.presentationModeButton.classList.add("hidden"); + } + if (this.supportsIntegratedFind) { + appConfig.toolbar?.viewFind?.classList.add("hidden"); + } + this.initPassiveLoading(file); + const { + mainContainer + } = appConfig; + ({ + scrollTop: this._lastScrollTop, + scrollLeft: this._lastScrollLeft + } = mainContainer); + const scroll = () => { + if (this._lastScrollTop === mainContainer.scrollTop && this._lastScrollLeft === mainContainer.scrollLeft) { + return; + } + mainContainer.removeEventListener("scroll", scroll, { + passive: true + }); + this._isScrolling = true; + const scrollend = () => { + ({ + scrollTop: this._lastScrollTop, + scrollLeft: this._lastScrollLeft + } = mainContainer); + this._isScrolling = false; + mainContainer.addEventListener("scroll", scroll, { + passive: true + }); + mainContainer.removeEventListener("scrollend", scrollend); + mainContainer.removeEventListener("blur", scrollend); + }; + mainContainer.addEventListener("scrollend", scrollend); + mainContainer.addEventListener("blur", scrollend); + }; + mainContainer.addEventListener("scroll", scroll, { + passive: true + }); + }, + get externalServices() { + return shadow(this, "externalServices", new ExternalServices()); + }, + get mlManager() { + return shadow(this, "mlManager", AppOptions.get("enableML") === true ? new MLManager() : null); + }, + get initialized() { + return this._initializedCapability.settled; + }, + get initializedPromise() { + return this._initializedCapability.promise; + }, + zoomIn(steps, scaleFactor) { + if (this.pdfViewer.isInPresentationMode) { + return; + } + this.pdfViewer.increaseScale({ + drawingDelay: AppOptions.get("defaultZoomDelay"), + steps, + scaleFactor + }); + }, + zoomOut(steps, scaleFactor) { + if (this.pdfViewer.isInPresentationMode) { + return; + } + this.pdfViewer.decreaseScale({ + drawingDelay: AppOptions.get("defaultZoomDelay"), + steps, + scaleFactor + }); + }, + zoomReset() { + if (this.pdfViewer.isInPresentationMode) { + return; + } + this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE; + }, + get pagesCount() { + return this.pdfDocument ? this.pdfDocument.numPages : 0; + }, + get page() { + return this.pdfViewer.currentPageNumber; + }, + set page(val) { + this.pdfViewer.currentPageNumber = val; + }, + get supportsPrinting() { + return PDFPrintServiceFactory.supportsPrinting; + }, + get supportsFullscreen() { + return shadow(this, "supportsFullscreen", document.fullscreenEnabled); + }, + get supportsPinchToZoom() { + return shadow(this, "supportsPinchToZoom", AppOptions.get("supportsPinchToZoom")); + }, + get supportsIntegratedFind() { + return shadow(this, "supportsIntegratedFind", AppOptions.get("supportsIntegratedFind")); + }, + get loadingBar() { + const barElement = document.getElementById("loadingBar"); + const bar = barElement ? new ProgressBar(barElement) : null; + return shadow(this, "loadingBar", bar); + }, + get supportsMouseWheelZoomCtrlKey() { + return shadow(this, "supportsMouseWheelZoomCtrlKey", AppOptions.get("supportsMouseWheelZoomCtrlKey")); + }, + get supportsMouseWheelZoomMetaKey() { + return shadow(this, "supportsMouseWheelZoomMetaKey", AppOptions.get("supportsMouseWheelZoomMetaKey")); + }, + get supportsCaretBrowsingMode() { + return shadow(this, "supportsCaretBrowsingMode", AppOptions.get("supportsCaretBrowsingMode")); + }, + moveCaret(isUp, select) { + this._caretBrowsing ||= new CaretBrowsingMode(this.appConfig.mainContainer, this.appConfig.viewerContainer, this.appConfig.toolbar?.container); + this._caretBrowsing.moveCaret(isUp, select); + }, + initPassiveLoading(file) { + this.setTitleUsingUrl(file, file); + this.externalServices.initPassiveLoading({ + onOpenWithTransport: range => { + this.open({ + range + }); + }, + onOpenWithData: (data, contentDispositionFilename) => { + if (isPdfFile(contentDispositionFilename)) { + this._contentDispositionFilename = contentDispositionFilename; + } + this.open({ + data + }); + }, + onOpenWithURL: (url, length, originalUrl) => { + this.open({ + url, + length, + originalUrl + }); + }, + onError: err => { + this.l10n.get("pdfjs-loading-error").then(msg => { + this._documentError(msg, err); + }); + }, + onProgress: (loaded, total) => { + this.progress(loaded / total); + } + }); + }, + setTitleUsingUrl(url = "", downloadUrl = null) { + this.url = url; + this.baseUrl = url.split("#", 1)[0]; + if (downloadUrl) { + this._downloadUrl = downloadUrl === url ? this.baseUrl : downloadUrl.split("#", 1)[0]; + } + if (isDataScheme(url)) { + this._hideViewBookmark(); + } + let title = getPdfFilenameFromUrl(url, ""); + if (!title) { + try { + title = decodeURIComponent(getFilenameFromUrl(url)) || url; + } catch { + title = url; + } + } + this.setTitle(title); + }, + setTitle(title = this._title) { + this._title = title; + if (this.isViewerEmbedded) { + return; + } + const editorIndicator = this._hasAnnotationEditors && !this.pdfRenderingQueue.printing; + document.title = `${editorIndicator ? "* " : ""}${title}`; + }, + get _docFilename() { + return this._contentDispositionFilename || getPdfFilenameFromUrl(this.url); + }, + _hideViewBookmark() { + const { + secondaryToolbar + } = this.appConfig; + secondaryToolbar?.viewBookmarkButton.classList.add("hidden"); + if (secondaryToolbar?.presentationModeButton.classList.contains("hidden")) { + document.getElementById("viewBookmarkSeparator")?.classList.add("hidden"); + } + }, + async close() { + this._unblockDocumentLoadEvent(); + this._hideViewBookmark(); + if (!this.pdfLoadingTask) { + return; + } + const promises = []; + promises.push(this.pdfLoadingTask.destroy()); + this.pdfLoadingTask = null; + if (this.pdfDocument) { + this.pdfDocument = null; + this.pdfThumbnailViewer?.setDocument(null); + this.pdfViewer.setDocument(null); + this.pdfLinkService.setDocument(null); + this.pdfDocumentProperties?.setDocument(null); + } + this.pdfLinkService.externalLinkEnabled = true; + this.store = null; + this.isInitialViewSet = false; + this.downloadComplete = false; + this.url = ""; + this.baseUrl = ""; + this._downloadUrl = ""; + this.documentInfo = null; + this.metadata = null; + this._contentDispositionFilename = null; + this._contentLength = null; + this._saveInProgress = false; + this._hasAnnotationEditors = false; + promises.push(this.pdfScriptingManager.destroyPromise, this.passwordPrompt.close()); + this.setTitle(); + this.pdfSidebar?.reset(); + this.pdfOutlineViewer?.reset(); + this.pdfAttachmentViewer?.reset(); + this.pdfLayerViewer?.reset(); + this.pdfHistory?.reset(); + this.findBar?.reset(); + this.toolbar?.reset(); + this.secondaryToolbar?.reset(); + this._PDFBug?.cleanup(); + await Promise.all(promises); + }, + async open(args) { + if (this.pdfLoadingTask) { + await this.close(); + } + const workerParams = AppOptions.getAll(OptionKind.WORKER); + Object.assign(GlobalWorkerOptions, workerParams); + AppOptions.set("docBaseUrl", this.baseUrl); + const apiParams = AppOptions.getAll(OptionKind.API); + const loadingTask = getDocument({ + ...apiParams, + ...args + }); + this.pdfLoadingTask = loadingTask; + loadingTask.onPassword = (updateCallback, reason) => { + if (this.isViewerEmbedded) { + this._unblockDocumentLoadEvent(); + } + this.pdfLinkService.externalLinkEnabled = false; + this.passwordPrompt.setUpdateCallback(updateCallback, reason); + this.passwordPrompt.open(); + }; + loadingTask.onProgress = ({ + loaded, + total + }) => { + this.progress(loaded / total); + }; + return loadingTask.promise.then(pdfDocument => { + this.load(pdfDocument); + }, reason => { + if (loadingTask !== this.pdfLoadingTask) { + return undefined; + } + let key = "pdfjs-loading-error"; + if (reason instanceof InvalidPDFException) { + key = "pdfjs-invalid-file-error"; + } else if (reason instanceof MissingPDFException) { + key = "pdfjs-missing-file-error"; + } else if (reason instanceof UnexpectedResponseException) { + key = "pdfjs-unexpected-response-error"; + } + return this.l10n.get(key).then(msg => { + this._documentError(msg, { + message: reason?.message + }); + throw reason; + }); + }); + }, + _ensureDownloadComplete() { + if (this.pdfDocument && this.downloadComplete) { + return; + } + throw new Error("PDF document not downloaded."); + }, + async download(options = {}) { + const url = this._downloadUrl, + filename = this._docFilename; + try { + this._ensureDownloadComplete(); + const data = await this.pdfDocument.getData(); + const blob = new Blob([data], { + type: "application/pdf" + }); + await this.downloadManager.download(blob, url, filename, options); + } catch { + await this.downloadManager.downloadUrl(url, filename, options); + } + }, + async save(options = {}) { + if (this._saveInProgress) { + return; + } + this._saveInProgress = true; + await this.pdfScriptingManager.dispatchWillSave(); + const url = this._downloadUrl, + filename = this._docFilename; + try { + this._ensureDownloadComplete(); + const data = await this.pdfDocument.saveDocument(); + const blob = new Blob([data], { + type: "application/pdf" + }); + await this.downloadManager.download(blob, url, filename, options); + } catch (reason) { + console.error(`Error when saving the document: ${reason.message}`); + await this.download(options); + } finally { + await this.pdfScriptingManager.dispatchDidSave(); + this._saveInProgress = false; + } + if (this._hasAnnotationEditors) { + this.externalServices.reportTelemetry({ + type: "editing", + data: { + type: "save", + stats: this.pdfDocument?.annotationStorage.editorStats + } + }); + } + }, + downloadOrSave(options = {}) { + if (this.pdfDocument?.annotationStorage.size > 0) { + this.save(options); + } else { + this.download(options); + } + }, + openInExternalApp() { + this.downloadOrSave({ + openInExternalApp: true + }); + }, + _documentError(message, moreInfo = null) { + this._unblockDocumentLoadEvent(); + this._otherError(message, moreInfo); + this.eventBus.dispatch("documenterror", { + source: this, + message, + reason: moreInfo?.message ?? null + }); + }, + _otherError(message, moreInfo = null) { + const moreInfoText = [`PDF.js v${version || "?"} (build: ${build || "?"})`]; + if (moreInfo) { + moreInfoText.push(`Message: ${moreInfo.message}`); + if (moreInfo.stack) { + moreInfoText.push(`Stack: ${moreInfo.stack}`); + } else { + if (moreInfo.filename) { + moreInfoText.push(`File: ${moreInfo.filename}`); + } + if (moreInfo.lineNumber) { + moreInfoText.push(`Line: ${moreInfo.lineNumber}`); + } + } + } + console.error(`${message}\n\n${moreInfoText.join("\n")}`); + }, + progress(level) { + if (!this.loadingBar || this.downloadComplete) { + return; + } + const percent = Math.round(level * 100); + if (percent <= this.loadingBar.percent) { + return; + } + this.loadingBar.percent = percent; + if (this.pdfDocument?.loadingParams.disableAutoFetch ?? AppOptions.get("disableAutoFetch")) { + this.loadingBar.setDisableAutoFetch(); + } + }, + load(pdfDocument) { + this.pdfDocument = pdfDocument; + pdfDocument.getDownloadInfo().then(({ + length + }) => { + this._contentLength = length; + this.downloadComplete = true; + this.loadingBar?.hide(); + firstPagePromise.then(() => { + this.eventBus.dispatch("documentloaded", { + source: this + }); + }); + }); + const pageLayoutPromise = pdfDocument.getPageLayout().catch(() => {}); + const pageModePromise = pdfDocument.getPageMode().catch(() => {}); + const openActionPromise = pdfDocument.getOpenAction().catch(() => {}); + this.toolbar?.setPagesCount(pdfDocument.numPages, false); + this.secondaryToolbar?.setPagesCount(pdfDocument.numPages); + this.pdfLinkService.setDocument(pdfDocument); + this.pdfDocumentProperties?.setDocument(pdfDocument); + const pdfViewer = this.pdfViewer; + pdfViewer.setDocument(pdfDocument); + const { + firstPagePromise, + onePageRendered, + pagesPromise + } = pdfViewer; + this.pdfThumbnailViewer?.setDocument(pdfDocument); + const storedPromise = (this.store = new ViewHistory(pdfDocument.fingerprints[0])).getMultiple({ + page: null, + zoom: DEFAULT_SCALE_VALUE, + scrollLeft: "0", + scrollTop: "0", + rotation: null, + sidebarView: SidebarView.UNKNOWN, + scrollMode: ScrollMode.UNKNOWN, + spreadMode: SpreadMode.UNKNOWN + }).catch(() => {}); + firstPagePromise.then(pdfPage => { + this.loadingBar?.setWidth(this.appConfig.viewerContainer); + this._initializeAnnotationStorageCallbacks(pdfDocument); + Promise.all([animationStarted, storedPromise, pageLayoutPromise, pageModePromise, openActionPromise]).then(async ([timeStamp, stored, pageLayout, pageMode, openAction]) => { + const viewOnLoad = AppOptions.get("viewOnLoad"); + this._initializePdfHistory({ + fingerprint: pdfDocument.fingerprints[0], + viewOnLoad, + initialDest: openAction?.dest + }); + const initialBookmark = this.initialBookmark; + const zoom = AppOptions.get("defaultZoomValue"); + let hash = zoom ? `zoom=${zoom}` : null; + let rotation = null; + let sidebarView = AppOptions.get("sidebarViewOnLoad"); + let scrollMode = AppOptions.get("scrollModeOnLoad"); + let spreadMode = AppOptions.get("spreadModeOnLoad"); + if (stored?.page && viewOnLoad !== ViewOnLoad.INITIAL) { + hash = `page=${stored.page}&zoom=${zoom || stored.zoom},` + `${stored.scrollLeft},${stored.scrollTop}`; + rotation = parseInt(stored.rotation, 10); + if (sidebarView === SidebarView.UNKNOWN) { + sidebarView = stored.sidebarView | 0; + } + if (scrollMode === ScrollMode.UNKNOWN) { + scrollMode = stored.scrollMode | 0; + } + if (spreadMode === SpreadMode.UNKNOWN) { + spreadMode = stored.spreadMode | 0; + } + } + if (pageMode && sidebarView === SidebarView.UNKNOWN) { + sidebarView = apiPageModeToSidebarView(pageMode); + } + if (pageLayout && scrollMode === ScrollMode.UNKNOWN && spreadMode === SpreadMode.UNKNOWN) { + const modes = apiPageLayoutToViewerModes(pageLayout); + spreadMode = modes.spreadMode; + } + this.setInitialView(hash, { + rotation, + sidebarView, + scrollMode, + spreadMode + }); + this.eventBus.dispatch("documentinit", { + source: this + }); + if (!this.isViewerEmbedded) { + pdfViewer.focus(); + } + await Promise.race([pagesPromise, new Promise(resolve => { + setTimeout(resolve, FORCE_PAGES_LOADED_TIMEOUT); + })]); + if (!initialBookmark && !hash) { + return; + } + if (pdfViewer.hasEqualPageSizes) { + return; + } + this.initialBookmark = initialBookmark; + pdfViewer.currentScaleValue = pdfViewer.currentScaleValue; + this.setInitialView(hash); + }).catch(() => { + this.setInitialView(); + }).then(function () { + pdfViewer.update(); + }); + }); + pagesPromise.then(() => { + this._unblockDocumentLoadEvent(); + this._initializeAutoPrint(pdfDocument, openActionPromise); + }, reason => { + this.l10n.get("pdfjs-loading-error").then(msg => { + this._documentError(msg, { + message: reason?.message + }); + }); + }); + onePageRendered.then(data => { + this.externalServices.reportTelemetry({ + type: "pageInfo", + timestamp: data.timestamp + }); + if (this.pdfOutlineViewer) { + pdfDocument.getOutline().then(outline => { + if (pdfDocument !== this.pdfDocument) { + return; + } + this.pdfOutlineViewer.render({ + outline, + pdfDocument + }); + }); + } + if (this.pdfAttachmentViewer) { + pdfDocument.getAttachments().then(attachments => { + if (pdfDocument !== this.pdfDocument) { + return; + } + this.pdfAttachmentViewer.render({ + attachments + }); + }); + } + if (this.pdfLayerViewer) { + pdfViewer.optionalContentConfigPromise.then(optionalContentConfig => { + if (pdfDocument !== this.pdfDocument) { + return; + } + this.pdfLayerViewer.render({ + optionalContentConfig, + pdfDocument + }); + }); + } + }); + this._initializePageLabels(pdfDocument); + this._initializeMetadata(pdfDocument); + }, + async _scriptingDocProperties(pdfDocument) { + if (!this.documentInfo) { + await new Promise(resolve => { + this.eventBus._on("metadataloaded", resolve, { + once: true + }); + }); + if (pdfDocument !== this.pdfDocument) { + return null; + } + } + if (!this._contentLength) { + await new Promise(resolve => { + this.eventBus._on("documentloaded", resolve, { + once: true + }); + }); + if (pdfDocument !== this.pdfDocument) { + return null; + } + } + return { + ...this.documentInfo, + baseURL: this.baseUrl, + filesize: this._contentLength, + filename: this._docFilename, + metadata: this.metadata?.getRaw(), + authors: this.metadata?.get("dc:creator"), + numPages: this.pagesCount, + URL: this.url + }; + }, + async _initializeAutoPrint(pdfDocument, openActionPromise) { + const [openAction, jsActions] = await Promise.all([openActionPromise, this.pdfViewer.enableScripting ? null : pdfDocument.getJSActions()]); + if (pdfDocument !== this.pdfDocument) { + return; + } + let triggerAutoPrint = openAction?.action === "Print"; + if (jsActions) { + console.warn("Warning: JavaScript support is not enabled"); + for (const name in jsActions) { + if (triggerAutoPrint) { + break; + } + switch (name) { + case "WillClose": + case "WillSave": + case "DidSave": + case "WillPrint": + case "DidPrint": + continue; + } + triggerAutoPrint = jsActions[name].some(js => AutoPrintRegExp.test(js)); + } + } + if (triggerAutoPrint) { + this.triggerPrinting(); + } + }, + async _initializeMetadata(pdfDocument) { + const { + info, + metadata, + contentDispositionFilename, + contentLength + } = await pdfDocument.getMetadata(); + if (pdfDocument !== this.pdfDocument) { + return; + } + this.documentInfo = info; + this.metadata = metadata; + this._contentDispositionFilename ??= contentDispositionFilename; + this._contentLength ??= contentLength; + console.log(`PDF ${pdfDocument.fingerprints[0]} [${info.PDFFormatVersion} ` + `${(info.Producer || "-").trim()} / ${(info.Creator || "-").trim()}] ` + `(PDF.js: ${version || "?"} [${build || "?"}])`); + let pdfTitle = info.Title; + const metadataTitle = metadata?.get("dc:title"); + if (metadataTitle) { + if (metadataTitle !== "Untitled" && !/[\uFFF0-\uFFFF]/g.test(metadataTitle)) { + pdfTitle = metadataTitle; + } + } + if (pdfTitle) { + this.setTitle(`${pdfTitle} - ${this._contentDispositionFilename || this._title}`); + } else if (this._contentDispositionFilename) { + this.setTitle(this._contentDispositionFilename); + } + if (info.IsXFAPresent && !info.IsAcroFormPresent && !pdfDocument.isPureXfa) { + if (pdfDocument.loadingParams.enableXfa) { + console.warn("Warning: XFA Foreground documents are not supported"); + } else { + console.warn("Warning: XFA support is not enabled"); + } + } else if ((info.IsAcroFormPresent || info.IsXFAPresent) && !this.pdfViewer.renderForms) { + console.warn("Warning: Interactive form support is not enabled"); + } + if (info.IsSignaturesPresent) { + console.warn("Warning: Digital signatures validation is not supported"); + } + this.eventBus.dispatch("metadataloaded", { + source: this + }); + }, + async _initializePageLabels(pdfDocument) {}, + _initializePdfHistory({ + fingerprint, + viewOnLoad, + initialDest = null + }) { + if (!this.pdfHistory) { + return; + } + this.pdfHistory.initialize({ + fingerprint, + resetHistory: viewOnLoad === ViewOnLoad.INITIAL, + updateUrl: AppOptions.get("historyUpdateUrl") + }); + if (this.pdfHistory.initialBookmark) { + this.initialBookmark = this.pdfHistory.initialBookmark; + this.initialRotation = this.pdfHistory.initialRotation; + } + if (initialDest && !this.initialBookmark && viewOnLoad === ViewOnLoad.UNKNOWN) { + this.initialBookmark = JSON.stringify(initialDest); + this.pdfHistory.push({ + explicitDest: initialDest, + pageNumber: null + }); + } + }, + _initializeAnnotationStorageCallbacks(pdfDocument) { + if (pdfDocument !== this.pdfDocument) { + return; + } + const { + annotationStorage + } = pdfDocument; + annotationStorage.onSetModified = () => { + window.addEventListener("beforeunload", beforeUnload); + }; + annotationStorage.onResetModified = () => { + window.removeEventListener("beforeunload", beforeUnload); + }; + annotationStorage.onAnnotationEditor = typeStr => { + this._hasAnnotationEditors = !!typeStr; + this.setTitle(); + }; + }, + setInitialView(storedHash, { + rotation, + sidebarView, + scrollMode, + spreadMode + } = {}) { + const setRotation = angle => { + if (isValidRotation(angle)) { + this.pdfViewer.pagesRotation = angle; + } + }; + const setViewerModes = (scroll, spread) => { + if (isValidScrollMode(scroll)) { + this.pdfViewer.scrollMode = scroll; + } + if (isValidSpreadMode(spread)) { + this.pdfViewer.spreadMode = spread; + } + }; + this.isInitialViewSet = true; + this.pdfSidebar?.setInitialView(sidebarView); + setViewerModes(scrollMode, spreadMode); + if (this.initialBookmark) { + setRotation(this.initialRotation); + delete this.initialRotation; + this.pdfLinkService.setHash(this.initialBookmark); + this.initialBookmark = null; + } else if (storedHash) { + setRotation(rotation); + this.pdfLinkService.setHash(storedHash); + } + this.toolbar?.setPageNumber(this.pdfViewer.currentPageNumber, this.pdfViewer.currentPageLabel); + this.secondaryToolbar?.setPageNumber(this.pdfViewer.currentPageNumber); + if (!this.pdfViewer.currentScaleValue) { + this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE; + } + }, + _cleanup() { + if (!this.pdfDocument) { + return; + } + this.pdfViewer.cleanup(); + this.pdfThumbnailViewer?.cleanup(); + this.pdfDocument.cleanup(AppOptions.get("fontExtraProperties")); + }, + forceRendering() { + this.pdfRenderingQueue.printing = !!this.printService; + this.pdfRenderingQueue.isThumbnailViewEnabled = this.pdfSidebar?.visibleView === SidebarView.THUMBS; + this.pdfRenderingQueue.renderHighestPriority(); + }, + beforePrint() { + this._printAnnotationStoragePromise = this.pdfScriptingManager.dispatchWillPrint().catch(() => {}).then(() => this.pdfDocument?.annotationStorage.print); + if (this.printService) { + return; + } + if (!this.supportsPrinting) { + this.l10n.get("pdfjs-printing-not-supported").then(msg => { + this._otherError(msg); + }); + return; + } + if (!this.pdfViewer.pageViewsReady) { + this.l10n.get("pdfjs-printing-not-ready").then(msg => { + window.alert(msg); + }); + return; + } + this.printService = PDFPrintServiceFactory.createPrintService({ + pdfDocument: this.pdfDocument, + pagesOverview: this.pdfViewer.getPagesOverview(), + printContainer: this.appConfig.printContainer, + printResolution: AppOptions.get("printResolution"), + optionalContentConfigPromise: this.pdfViewer.optionalContentConfigPromise, + printAnnotationStoragePromise: this._printAnnotationStoragePromise + }); + this.forceRendering(); + this.setTitle(); + this.printService.layout(); + if (this._hasAnnotationEditors) { + this.externalServices.reportTelemetry({ + type: "editing", + data: { + type: "print", + stats: this.pdfDocument?.annotationStorage.editorStats + } + }); + } + }, + afterPrint() { + if (this._printAnnotationStoragePromise) { + this._printAnnotationStoragePromise.then(() => { + this.pdfScriptingManager.dispatchDidPrint(); + }); + this._printAnnotationStoragePromise = null; + } + if (this.printService) { + this.printService.destroy(); + this.printService = null; + this.pdfDocument?.annotationStorage.resetModified(); + } + this.forceRendering(); + this.setTitle(); + }, + rotatePages(delta) { + this.pdfViewer.pagesRotation += delta; + }, + requestPresentationMode() { + this.pdfPresentationMode?.request(); + }, + triggerPrinting() { + if (!this.supportsPrinting) { + return; + } + window.print(); + }, + bindEvents() { + const { + eventBus, + _boundEvents + } = this; + _boundEvents.beforePrint = this.beforePrint.bind(this); + _boundEvents.afterPrint = this.afterPrint.bind(this); + eventBus._on("resize", webViewerResize); + eventBus._on("hashchange", webViewerHashchange); + eventBus._on("beforeprint", _boundEvents.beforePrint); + eventBus._on("afterprint", _boundEvents.afterPrint); + eventBus._on("pagerender", webViewerPageRender); + eventBus._on("pagerendered", webViewerPageRendered); + eventBus._on("updateviewarea", webViewerUpdateViewarea); + eventBus._on("pagechanging", webViewerPageChanging); + eventBus._on("scalechanging", webViewerScaleChanging); + eventBus._on("rotationchanging", webViewerRotationChanging); + eventBus._on("sidebarviewchanged", webViewerSidebarViewChanged); + eventBus._on("pagemode", webViewerPageMode); + eventBus._on("namedaction", webViewerNamedAction); + eventBus._on("presentationmodechanged", webViewerPresentationModeChanged); + eventBus._on("presentationmode", webViewerPresentationMode); + eventBus._on("switchannotationeditormode", webViewerSwitchAnnotationEditorMode); + eventBus._on("switchannotationeditorparams", webViewerSwitchAnnotationEditorParams); + eventBus._on("print", webViewerPrint); + eventBus._on("download", webViewerDownload); + eventBus._on("openinexternalapp", webViewerOpenInExternalApp); + eventBus._on("firstpage", webViewerFirstPage); + eventBus._on("lastpage", webViewerLastPage); + eventBus._on("nextpage", webViewerNextPage); + eventBus._on("previouspage", webViewerPreviousPage); + eventBus._on("zoomin", webViewerZoomIn); + eventBus._on("zoomout", webViewerZoomOut); + eventBus._on("zoomreset", webViewerZoomReset); + eventBus._on("pagenumberchanged", webViewerPageNumberChanged); + eventBus._on("scalechanged", webViewerScaleChanged); + eventBus._on("rotatecw", webViewerRotateCw); + eventBus._on("rotateccw", webViewerRotateCcw); + eventBus._on("optionalcontentconfig", webViewerOptionalContentConfig); + eventBus._on("switchscrollmode", webViewerSwitchScrollMode); + eventBus._on("scrollmodechanged", webViewerScrollModeChanged); + eventBus._on("switchspreadmode", webViewerSwitchSpreadMode); + eventBus._on("spreadmodechanged", webViewerSpreadModeChanged); + eventBus._on("documentproperties", webViewerDocumentProperties); + eventBus._on("findfromurlhash", webViewerFindFromUrlHash); + eventBus._on("updatefindmatchescount", webViewerUpdateFindMatchesCount); + eventBus._on("updatefindcontrolstate", webViewerUpdateFindControlState); + if (AppOptions.get("pdfBug")) { + _boundEvents.reportPageStatsPDFBug = reportPageStatsPDFBug; + eventBus._on("pagerendered", _boundEvents.reportPageStatsPDFBug); + eventBus._on("pagechanging", _boundEvents.reportPageStatsPDFBug); + } + eventBus._on("annotationeditorstateschanged", webViewerAnnotationEditorStatesChanged); + eventBus._on("reporttelemetry", webViewerReportTelemetry); + }, + bindWindowEvents() { + const { + eventBus, + _boundEvents + } = this; + function addWindowResolutionChange(evt = null) { + if (evt) { + webViewerResolutionChange(evt); + } + const mediaQueryList = window.matchMedia(`(resolution: ${window.devicePixelRatio || 1}dppx)`); + mediaQueryList.addEventListener("change", addWindowResolutionChange, { + once: true + }); + } + addWindowResolutionChange(); + _boundEvents.windowResize = () => { + eventBus.dispatch("resize", { + source: window + }); + }; + _boundEvents.windowHashChange = () => { + eventBus.dispatch("hashchange", { + source: window, + hash: document.location.hash.substring(1) + }); + }; + _boundEvents.windowBeforePrint = () => { + eventBus.dispatch("beforeprint", { + source: window + }); + }; + _boundEvents.windowAfterPrint = () => { + eventBus.dispatch("afterprint", { + source: window + }); + }; + _boundEvents.windowUpdateFromSandbox = event => { + eventBus.dispatch("updatefromsandbox", { + source: window, + detail: event.detail + }); + }; + window.addEventListener("visibilitychange", webViewerVisibilityChange); + window.addEventListener("wheel", webViewerWheel, { + passive: false + }); + window.addEventListener("touchstart", webViewerTouchStart, { + passive: false + }); + window.addEventListener("touchmove", webViewerTouchMove, { + passive: false + }); + window.addEventListener("touchend", webViewerTouchEnd, { + passive: false + }); + window.addEventListener("click", webViewerClick); + window.addEventListener("keydown", webViewerKeyDown); + window.addEventListener("keyup", webViewerKeyUp); + window.addEventListener("resize", _boundEvents.windowResize); + window.addEventListener("hashchange", _boundEvents.windowHashChange); + window.addEventListener("beforeprint", _boundEvents.windowBeforePrint); + window.addEventListener("afterprint", _boundEvents.windowAfterPrint); + window.addEventListener("updatefromsandbox", _boundEvents.windowUpdateFromSandbox); + }, + unbindEvents() { + throw new Error("Not implemented: unbindEvents"); + }, + unbindWindowEvents() { + throw new Error("Not implemented: unbindWindowEvents"); + }, + _accumulateTicks(ticks, prop) { + if (this[prop] > 0 && ticks < 0 || this[prop] < 0 && ticks > 0) { + this[prop] = 0; + } + this[prop] += ticks; + const wholeTicks = Math.trunc(this[prop]); + this[prop] -= wholeTicks; + return wholeTicks; + }, + _accumulateFactor(previousScale, factor, prop) { + if (factor === 1) { + return 1; + } + if (this[prop] > 1 && factor < 1 || this[prop] < 1 && factor > 1) { + this[prop] = 1; + } + const newFactor = Math.floor(previousScale * factor * this[prop] * 100) / (100 * previousScale); + this[prop] = factor / newFactor; + return newFactor; + }, + _centerAtPos(previousScale, x, y) { + const { + pdfViewer + } = this; + const scaleDiff = pdfViewer.currentScale / previousScale - 1; + if (scaleDiff !== 0) { + const [top, left] = pdfViewer.containerTopLeft; + pdfViewer.container.scrollLeft += (x - left) * scaleDiff; + pdfViewer.container.scrollTop += (y - top) * scaleDiff; + } + }, + _unblockDocumentLoadEvent() { + document.blockUnblockOnload?.(false); + this._unblockDocumentLoadEvent = () => {}; + }, + get scriptingReady() { + return this.pdfScriptingManager.ready; + } +}; +initCom(PDFViewerApplication); +async function loadFakeWorker() { + GlobalWorkerOptions.workerSrc ||= AppOptions.get("workerSrc"); + await import( /*webpackIgnore: true*/PDFWorker.workerSrc); +} +async function loadPDFBug(self) { + const { + PDFBug + } = await import( /*webpackIgnore: true*/AppOptions.get("debuggerSrc")); + self._PDFBug = PDFBug; +} +function reportPageStatsPDFBug({ + pageNumber +}) { + if (!globalThis.Stats?.enabled) { + return; + } + const pageView = PDFViewerApplication.pdfViewer.getPageView(pageNumber - 1); + globalThis.Stats.add(pageNumber, pageView?.pdfPage?.stats); +} +function webViewerPageRender({ + pageNumber +}) { + if (pageNumber === PDFViewerApplication.page) { + PDFViewerApplication.toolbar?.updateLoadingIndicatorState(true); + } +} +function webViewerPageRendered({ + pageNumber, + error +}) { + if (pageNumber === PDFViewerApplication.page) { + PDFViewerApplication.toolbar?.updateLoadingIndicatorState(false); + } + if (PDFViewerApplication.pdfSidebar?.visibleView === SidebarView.THUMBS) { + const pageView = PDFViewerApplication.pdfViewer.getPageView(pageNumber - 1); + const thumbnailView = PDFViewerApplication.pdfThumbnailViewer?.getThumbnail(pageNumber - 1); + if (pageView) { + thumbnailView?.setImage(pageView); + } + } + if (error) { + PDFViewerApplication.l10n.get("pdfjs-rendering-error").then(msg => { + PDFViewerApplication._otherError(msg, error); + }); + } +} +function webViewerPageMode({ + mode +}) { + let view; + switch (mode) { + case "thumbs": + view = SidebarView.THUMBS; + break; + case "bookmarks": + case "outline": + view = SidebarView.OUTLINE; + break; + case "attachments": + view = SidebarView.ATTACHMENTS; + break; + case "layers": + view = SidebarView.LAYERS; + break; + case "none": + view = SidebarView.NONE; + break; + default: + console.error('Invalid "pagemode" hash parameter: ' + mode); + return; + } + PDFViewerApplication.pdfSidebar?.switchView(view, true); +} +function webViewerNamedAction(evt) { + switch (evt.action) { + case "GoToPage": + PDFViewerApplication.appConfig.toolbar?.pageNumber.select(); + break; + case "Find": + if (!PDFViewerApplication.supportsIntegratedFind) { + PDFViewerApplication.findBar?.toggle(); + } + break; + case "Print": + PDFViewerApplication.triggerPrinting(); + break; + case "SaveAs": + PDFViewerApplication.downloadOrSave(); + break; + } +} +function webViewerPresentationModeChanged(evt) { + PDFViewerApplication.pdfViewer.presentationModeState = evt.state; +} +function webViewerSidebarViewChanged({ + view +}) { + PDFViewerApplication.pdfRenderingQueue.isThumbnailViewEnabled = view === SidebarView.THUMBS; + if (PDFViewerApplication.isInitialViewSet) { + PDFViewerApplication.store?.set("sidebarView", view).catch(() => {}); + } +} +function webViewerUpdateViewarea({ + location +}) { + if (PDFViewerApplication.isInitialViewSet) { + PDFViewerApplication.store?.setMultiple({ + page: location.pageNumber, + zoom: location.scale, + scrollLeft: location.left, + scrollTop: location.top, + rotation: location.rotation + }).catch(() => {}); + } + if (PDFViewerApplication.appConfig.secondaryToolbar) { + const href = PDFViewerApplication.pdfLinkService.getAnchorUrl(location.pdfOpenParams); + PDFViewerApplication.appConfig.secondaryToolbar.viewBookmarkButton.href = href; + } +} +function webViewerScrollModeChanged(evt) { + if (PDFViewerApplication.isInitialViewSet && !PDFViewerApplication.pdfViewer.isInPresentationMode) { + PDFViewerApplication.store?.set("scrollMode", evt.mode).catch(() => {}); + } +} +function webViewerSpreadModeChanged(evt) { + if (PDFViewerApplication.isInitialViewSet && !PDFViewerApplication.pdfViewer.isInPresentationMode) { + PDFViewerApplication.store?.set("spreadMode", evt.mode).catch(() => {}); + } +} +function webViewerResize() { + const { + pdfDocument, + pdfViewer, + pdfRenderingQueue + } = PDFViewerApplication; + if (pdfRenderingQueue.printing && window.matchMedia("print").matches) { + return; + } + if (!pdfDocument) { + return; + } + const currentScaleValue = pdfViewer.currentScaleValue; + if (currentScaleValue === "auto" || currentScaleValue === "page-fit" || currentScaleValue === "page-width") { + pdfViewer.currentScaleValue = currentScaleValue; + } + pdfViewer.update(); +} +function webViewerHashchange(evt) { + const hash = evt.hash; + if (!hash) { + return; + } + if (!PDFViewerApplication.isInitialViewSet) { + PDFViewerApplication.initialBookmark = hash; + } else if (!PDFViewerApplication.pdfHistory?.popStateInProgress) { + PDFViewerApplication.pdfLinkService.setHash(hash); + } +} +function webViewerPresentationMode() { + PDFViewerApplication.requestPresentationMode(); +} +function webViewerSwitchAnnotationEditorMode(evt) { + PDFViewerApplication.pdfViewer.annotationEditorMode = evt; +} +function webViewerSwitchAnnotationEditorParams(evt) { + PDFViewerApplication.pdfViewer.annotationEditorParams = evt; +} +function webViewerPrint() { + PDFViewerApplication.triggerPrinting(); +} +function webViewerDownload() { + PDFViewerApplication.downloadOrSave(); +} +function webViewerOpenInExternalApp() { + PDFViewerApplication.openInExternalApp(); +} +function webViewerFirstPage() { + PDFViewerApplication.page = 1; +} +function webViewerLastPage() { + PDFViewerApplication.page = PDFViewerApplication.pagesCount; +} +function webViewerNextPage() { + PDFViewerApplication.pdfViewer.nextPage(); +} +function webViewerPreviousPage() { + PDFViewerApplication.pdfViewer.previousPage(); +} +function webViewerZoomIn() { + PDFViewerApplication.zoomIn(); +} +function webViewerZoomOut() { + PDFViewerApplication.zoomOut(); +} +function webViewerZoomReset() { + PDFViewerApplication.zoomReset(); +} +function webViewerPageNumberChanged(evt) { + const pdfViewer = PDFViewerApplication.pdfViewer; + if (evt.value !== "") { + PDFViewerApplication.pdfLinkService.goToPage(evt.value); + } + if (evt.value !== pdfViewer.currentPageNumber.toString() && evt.value !== pdfViewer.currentPageLabel) { + PDFViewerApplication.toolbar?.setPageNumber(pdfViewer.currentPageNumber, pdfViewer.currentPageLabel); + } +} +function webViewerScaleChanged(evt) { + PDFViewerApplication.pdfViewer.currentScaleValue = evt.value; +} +function webViewerRotateCw() { + PDFViewerApplication.rotatePages(90); +} +function webViewerRotateCcw() { + PDFViewerApplication.rotatePages(-90); +} +function webViewerOptionalContentConfig(evt) { + PDFViewerApplication.pdfViewer.optionalContentConfigPromise = evt.promise; +} +function webViewerSwitchScrollMode(evt) { + PDFViewerApplication.pdfViewer.scrollMode = evt.mode; +} +function webViewerSwitchSpreadMode(evt) { + PDFViewerApplication.pdfViewer.spreadMode = evt.mode; +} +function webViewerDocumentProperties() { + PDFViewerApplication.pdfDocumentProperties?.open(); +} +function webViewerFindFromUrlHash(evt) { + PDFViewerApplication.eventBus.dispatch("find", { + source: evt.source, + type: "", + query: evt.query, + caseSensitive: false, + entireWord: false, + highlightAll: true, + findPrevious: false, + matchDiacritics: true + }); +} +function webViewerUpdateFindMatchesCount({ + matchesCount +}) { + if (PDFViewerApplication.supportsIntegratedFind) { + PDFViewerApplication.externalServices.updateFindMatchesCount(matchesCount); + } else { + PDFViewerApplication.findBar?.updateResultsCount(matchesCount); + } +} +function webViewerUpdateFindControlState({ + state, + previous, + matchesCount, + rawQuery +}) { + if (PDFViewerApplication.supportsIntegratedFind) { + PDFViewerApplication.externalServices.updateFindControlState({ + result: state, + findPrevious: previous, + matchesCount, + rawQuery + }); + } else { + PDFViewerApplication.findBar?.updateUIState(state, previous, matchesCount); + } +} +function webViewerScaleChanging(evt) { + PDFViewerApplication.toolbar?.setPageScale(evt.presetValue, evt.scale); + PDFViewerApplication.pdfViewer.update(); +} +function webViewerRotationChanging(evt) { + if (PDFViewerApplication.pdfThumbnailViewer) { + PDFViewerApplication.pdfThumbnailViewer.pagesRotation = evt.pagesRotation; + } + PDFViewerApplication.forceRendering(); + PDFViewerApplication.pdfViewer.currentPageNumber = evt.pageNumber; +} +function webViewerPageChanging({ + pageNumber, + pageLabel +}) { + PDFViewerApplication.toolbar?.setPageNumber(pageNumber, pageLabel); + PDFViewerApplication.secondaryToolbar?.setPageNumber(pageNumber); + if (PDFViewerApplication.pdfSidebar?.visibleView === SidebarView.THUMBS) { + PDFViewerApplication.pdfThumbnailViewer?.scrollThumbnailIntoView(pageNumber); + } + const currentPage = PDFViewerApplication.pdfViewer.getPageView(pageNumber - 1); + PDFViewerApplication.toolbar?.updateLoadingIndicatorState(currentPage?.renderingState === RenderingStates.RUNNING); +} +function webViewerResolutionChange(evt) { + PDFViewerApplication.pdfViewer.refresh(); +} +function webViewerVisibilityChange(evt) { + if (document.visibilityState === "visible") { + setZoomDisabledTimeout(); + } +} +let zoomDisabledTimeout = null; +function setZoomDisabledTimeout() { + if (zoomDisabledTimeout) { + clearTimeout(zoomDisabledTimeout); + } + zoomDisabledTimeout = setTimeout(function () { + zoomDisabledTimeout = null; + }, WHEEL_ZOOM_DISABLED_TIMEOUT); +} +function webViewerWheel(evt) { + const { + pdfViewer, + supportsMouseWheelZoomCtrlKey, + supportsMouseWheelZoomMetaKey, + supportsPinchToZoom + } = PDFViewerApplication; + if (pdfViewer.isInPresentationMode) { + return; + } + const deltaMode = evt.deltaMode; + let scaleFactor = Math.exp(-evt.deltaY / 100); + const isBuiltInMac = FeatureTest.platform.isMac; + const isPinchToZoom = evt.ctrlKey && !PDFViewerApplication._isCtrlKeyDown && deltaMode === WheelEvent.DOM_DELTA_PIXEL && evt.deltaX === 0 && (Math.abs(scaleFactor - 1) < 0.05 || isBuiltInMac) && evt.deltaZ === 0; + if (isPinchToZoom || evt.ctrlKey && supportsMouseWheelZoomCtrlKey || evt.metaKey && supportsMouseWheelZoomMetaKey) { + evt.preventDefault(); + if (PDFViewerApplication._isScrolling || zoomDisabledTimeout || document.visibilityState === "hidden" || PDFViewerApplication.overlayManager.active) { + return; + } + const previousScale = pdfViewer.currentScale; + if (isPinchToZoom && supportsPinchToZoom) { + scaleFactor = PDFViewerApplication._accumulateFactor(previousScale, scaleFactor, "_wheelUnusedFactor"); + if (scaleFactor < 1) { + PDFViewerApplication.zoomOut(null, scaleFactor); + } else if (scaleFactor > 1) { + PDFViewerApplication.zoomIn(null, scaleFactor); + } else { + return; + } + } else { + const delta = normalizeWheelEventDirection(evt); + let ticks = 0; + if (deltaMode === WheelEvent.DOM_DELTA_LINE || deltaMode === WheelEvent.DOM_DELTA_PAGE) { + if (Math.abs(delta) >= 1) { + ticks = Math.sign(delta); + } else { + ticks = PDFViewerApplication._accumulateTicks(delta, "_wheelUnusedTicks"); + } + } else { + const PIXELS_PER_LINE_SCALE = 30; + ticks = PDFViewerApplication._accumulateTicks(delta / PIXELS_PER_LINE_SCALE, "_wheelUnusedTicks"); + } + if (ticks < 0) { + PDFViewerApplication.zoomOut(-ticks); + } else if (ticks > 0) { + PDFViewerApplication.zoomIn(ticks); + } else { + return; + } + } + PDFViewerApplication._centerAtPos(previousScale, evt.clientX, evt.clientY); + } +} +function webViewerTouchStart(evt) { + if (PDFViewerApplication.pdfViewer.isInPresentationMode || evt.touches.length < 2) { + return; + } + evt.preventDefault(); + if (evt.touches.length !== 2 || PDFViewerApplication.overlayManager.active) { + PDFViewerApplication._touchInfo = null; + return; + } + let [touch0, touch1] = evt.touches; + if (touch0.identifier > touch1.identifier) { + [touch0, touch1] = [touch1, touch0]; + } + PDFViewerApplication._touchInfo = { + touch0X: touch0.pageX, + touch0Y: touch0.pageY, + touch1X: touch1.pageX, + touch1Y: touch1.pageY + }; +} +function webViewerTouchMove(evt) { + if (!PDFViewerApplication._touchInfo || evt.touches.length !== 2) { + return; + } + const { + pdfViewer, + _touchInfo, + supportsPinchToZoom + } = PDFViewerApplication; + let [touch0, touch1] = evt.touches; + if (touch0.identifier > touch1.identifier) { + [touch0, touch1] = [touch1, touch0]; + } + const { + pageX: page0X, + pageY: page0Y + } = touch0; + const { + pageX: page1X, + pageY: page1Y + } = touch1; + const { + touch0X: pTouch0X, + touch0Y: pTouch0Y, + touch1X: pTouch1X, + touch1Y: pTouch1Y + } = _touchInfo; + if (Math.abs(pTouch0X - page0X) <= 1 && Math.abs(pTouch0Y - page0Y) <= 1 && Math.abs(pTouch1X - page1X) <= 1 && Math.abs(pTouch1Y - page1Y) <= 1) { + return; + } + _touchInfo.touch0X = page0X; + _touchInfo.touch0Y = page0Y; + _touchInfo.touch1X = page1X; + _touchInfo.touch1Y = page1Y; + if (pTouch0X === page0X && pTouch0Y === page0Y) { + const v1X = pTouch1X - page0X; + const v1Y = pTouch1Y - page0Y; + const v2X = page1X - page0X; + const v2Y = page1Y - page0Y; + const det = v1X * v2Y - v1Y * v2X; + if (Math.abs(det) > 0.02 * Math.hypot(v1X, v1Y) * Math.hypot(v2X, v2Y)) { + return; + } + } else if (pTouch1X === page1X && pTouch1Y === page1Y) { + const v1X = pTouch0X - page1X; + const v1Y = pTouch0Y - page1Y; + const v2X = page0X - page1X; + const v2Y = page0Y - page1Y; + const det = v1X * v2Y - v1Y * v2X; + if (Math.abs(det) > 0.02 * Math.hypot(v1X, v1Y) * Math.hypot(v2X, v2Y)) { + return; + } + } else { + const diff0X = page0X - pTouch0X; + const diff1X = page1X - pTouch1X; + const diff0Y = page0Y - pTouch0Y; + const diff1Y = page1Y - pTouch1Y; + const dotProduct = diff0X * diff1X + diff0Y * diff1Y; + if (dotProduct >= 0) { + return; + } + } + evt.preventDefault(); + const distance = Math.hypot(page0X - page1X, page0Y - page1Y) || 1; + const pDistance = Math.hypot(pTouch0X - pTouch1X, pTouch0Y - pTouch1Y) || 1; + const previousScale = pdfViewer.currentScale; + if (supportsPinchToZoom) { + const newScaleFactor = PDFViewerApplication._accumulateFactor(previousScale, distance / pDistance, "_touchUnusedFactor"); + if (newScaleFactor < 1) { + PDFViewerApplication.zoomOut(null, newScaleFactor); + } else if (newScaleFactor > 1) { + PDFViewerApplication.zoomIn(null, newScaleFactor); + } else { + return; + } + } else { + const PIXELS_PER_LINE_SCALE = 30; + const ticks = PDFViewerApplication._accumulateTicks((distance - pDistance) / PIXELS_PER_LINE_SCALE, "_touchUnusedTicks"); + if (ticks < 0) { + PDFViewerApplication.zoomOut(-ticks); + } else if (ticks > 0) { + PDFViewerApplication.zoomIn(ticks); + } else { + return; + } + } + PDFViewerApplication._centerAtPos(previousScale, (page0X + page1X) / 2, (page0Y + page1Y) / 2); +} +function webViewerTouchEnd(evt) { + if (!PDFViewerApplication._touchInfo) { + return; + } + evt.preventDefault(); + PDFViewerApplication._touchInfo = null; + PDFViewerApplication._touchUnusedTicks = 0; + PDFViewerApplication._touchUnusedFactor = 1; +} +function webViewerClick(evt) { + if (!PDFViewerApplication.secondaryToolbar?.isOpen) { + return; + } + const appConfig = PDFViewerApplication.appConfig; + if (PDFViewerApplication.pdfViewer.containsElement(evt.target) || appConfig.toolbar?.container.contains(evt.target) && evt.target !== appConfig.secondaryToolbar?.toggleButton) { + PDFViewerApplication.secondaryToolbar.close(); + } +} +function webViewerKeyUp(evt) { + if (evt.key === "Control") { + PDFViewerApplication._isCtrlKeyDown = false; + } +} +function webViewerKeyDown(evt) { + PDFViewerApplication._isCtrlKeyDown = evt.key === "Control"; + if (PDFViewerApplication.overlayManager.active) { + return; + } + const { + eventBus, + pdfViewer + } = PDFViewerApplication; + const isViewerInPresentationMode = pdfViewer.isInPresentationMode; + let handled = false, + ensureViewerFocused = false; + const cmd = (evt.ctrlKey ? 1 : 0) | (evt.altKey ? 2 : 0) | (evt.shiftKey ? 4 : 0) | (evt.metaKey ? 8 : 0); + if (cmd === 1 || cmd === 8 || cmd === 5 || cmd === 12) { + switch (evt.keyCode) { + case 70: + if (!PDFViewerApplication.supportsIntegratedFind && !evt.shiftKey) { + PDFViewerApplication.findBar?.open(); + handled = true; + } + break; + case 71: + if (!PDFViewerApplication.supportsIntegratedFind) { + const { + state + } = PDFViewerApplication.findController; + if (state) { + const newState = { + source: window, + type: "again", + findPrevious: cmd === 5 || cmd === 12 + }; + eventBus.dispatch("find", { + ...state, + ...newState + }); + } + handled = true; + } + break; + case 61: + case 107: + case 187: + case 171: + PDFViewerApplication.zoomIn(); + handled = true; + break; + case 173: + case 109: + case 189: + PDFViewerApplication.zoomOut(); + handled = true; + break; + case 48: + case 96: + if (!isViewerInPresentationMode) { + setTimeout(function () { + PDFViewerApplication.zoomReset(); + }); + handled = false; + } + break; + case 38: + if (isViewerInPresentationMode || PDFViewerApplication.page > 1) { + PDFViewerApplication.page = 1; + handled = true; + ensureViewerFocused = true; + } + break; + case 40: + if (isViewerInPresentationMode || PDFViewerApplication.page < PDFViewerApplication.pagesCount) { + PDFViewerApplication.page = PDFViewerApplication.pagesCount; + handled = true; + ensureViewerFocused = true; + } + break; + } + } + if (cmd === 3 || cmd === 10) { + switch (evt.keyCode) { + case 80: + PDFViewerApplication.requestPresentationMode(); + handled = true; + PDFViewerApplication.externalServices.reportTelemetry({ + type: "buttons", + data: { + id: "presentationModeKeyboard" + } + }); + break; + case 71: + if (PDFViewerApplication.appConfig.toolbar) { + PDFViewerApplication.appConfig.toolbar.pageNumber.select(); + handled = true; + } + break; + } + } + if (handled) { + if (ensureViewerFocused && !isViewerInPresentationMode) { + pdfViewer.focus(); + } + evt.preventDefault(); + return; + } + const curElement = getActiveOrFocusedElement(); + const curElementTagName = curElement?.tagName.toUpperCase(); + if (curElementTagName === "INPUT" || curElementTagName === "TEXTAREA" || curElementTagName === "SELECT" || curElementTagName === "BUTTON" && (evt.keyCode === 13 || evt.keyCode === 32) || curElement?.isContentEditable) { + if (evt.keyCode !== 27) { + return; + } + } + if (cmd === 0) { + let turnPage = 0, + turnOnlyIfPageFit = false; + switch (evt.keyCode) { + case 38: + if (PDFViewerApplication.supportsCaretBrowsingMode) { + PDFViewerApplication.moveCaret(true, false); + handled = true; + break; + } + case 33: + if (pdfViewer.isVerticalScrollbarEnabled) { + turnOnlyIfPageFit = true; + } + turnPage = -1; + break; + case 8: + if (!isViewerInPresentationMode) { + turnOnlyIfPageFit = true; + } + turnPage = -1; + break; + case 37: + if (PDFViewerApplication.supportsCaretBrowsingMode) { + return; + } + if (pdfViewer.isHorizontalScrollbarEnabled) { + turnOnlyIfPageFit = true; + } + case 75: + case 80: + turnPage = -1; + break; + case 27: + if (PDFViewerApplication.secondaryToolbar?.isOpen) { + PDFViewerApplication.secondaryToolbar.close(); + handled = true; + } + if (!PDFViewerApplication.supportsIntegratedFind && PDFViewerApplication.findBar?.opened) { + PDFViewerApplication.findBar.close(); + handled = true; + } + break; + case 40: + if (PDFViewerApplication.supportsCaretBrowsingMode) { + PDFViewerApplication.moveCaret(false, false); + handled = true; + break; + } + case 34: + if (pdfViewer.isVerticalScrollbarEnabled) { + turnOnlyIfPageFit = true; + } + turnPage = 1; + break; + case 13: + case 32: + if (!isViewerInPresentationMode) { + turnOnlyIfPageFit = true; + } + turnPage = 1; + break; + case 39: + if (PDFViewerApplication.supportsCaretBrowsingMode) { + return; + } + if (pdfViewer.isHorizontalScrollbarEnabled) { + turnOnlyIfPageFit = true; + } + case 74: + case 78: + turnPage = 1; + break; + case 36: + if (isViewerInPresentationMode || PDFViewerApplication.page > 1) { + PDFViewerApplication.page = 1; + handled = true; + ensureViewerFocused = true; + } + break; + case 35: + if (isViewerInPresentationMode || PDFViewerApplication.page < PDFViewerApplication.pagesCount) { + PDFViewerApplication.page = PDFViewerApplication.pagesCount; + handled = true; + ensureViewerFocused = true; + } + break; + case 83: + PDFViewerApplication.pdfCursorTools?.switchTool(CursorTool.SELECT); + break; + case 72: + PDFViewerApplication.pdfCursorTools?.switchTool(CursorTool.HAND); + break; + case 82: + PDFViewerApplication.rotatePages(90); + break; + case 115: + PDFViewerApplication.pdfSidebar?.toggle(); + break; + } + if (turnPage !== 0 && (!turnOnlyIfPageFit || pdfViewer.currentScaleValue === "page-fit")) { + if (turnPage > 0) { + pdfViewer.nextPage(); + } else { + pdfViewer.previousPage(); + } + handled = true; + } + } + if (cmd === 4) { + switch (evt.keyCode) { + case 13: + case 32: + if (!isViewerInPresentationMode && pdfViewer.currentScaleValue !== "page-fit") { + break; + } + pdfViewer.previousPage(); + handled = true; + break; + case 38: + PDFViewerApplication.moveCaret(true, true); + handled = true; + break; + case 40: + PDFViewerApplication.moveCaret(false, true); + handled = true; + break; + case 82: + PDFViewerApplication.rotatePages(-90); + break; + } + } + if (!handled && !isViewerInPresentationMode) { + if (evt.keyCode >= 33 && evt.keyCode <= 40 || evt.keyCode === 32 && curElementTagName !== "BUTTON") { + ensureViewerFocused = true; + } + } + if (ensureViewerFocused && !pdfViewer.containsElement(curElement)) { + pdfViewer.focus(); + } + if (handled) { + evt.preventDefault(); + } +} +function beforeUnload(evt) { + evt.preventDefault(); + evt.returnValue = ""; + return false; +} +function webViewerAnnotationEditorStatesChanged(data) { + PDFViewerApplication.externalServices.updateEditorStates(data); +} +function webViewerReportTelemetry({ + details +}) { + PDFViewerApplication.externalServices.reportTelemetry(details); +} + +;// CONCATENATED MODULE: ./web/viewer-geckoview.js + + + + +const pdfjsVersion = "4.1.249"; +const pdfjsBuild = "d07f37f44"; +const AppConstants = null; +window.PDFViewerApplication = PDFViewerApplication; +window.PDFViewerApplicationConstants = AppConstants; +window.PDFViewerApplicationOptions = AppOptions; +function getViewerConfiguration() { + const mainContainer = document.getElementById("viewerContainer"); + return { + appContainer: document.body, + mainContainer, + viewerContainer: document.getElementById("viewer"), + toolbar: { + mainContainer, + container: document.getElementById("floatingToolbar"), + download: document.getElementById("download"), + openInApp: document.getElementById("openInApp") + }, + passwordOverlay: { + dialog: document.getElementById("passwordDialog"), + label: document.getElementById("passwordText"), + input: document.getElementById("password"), + submitButton: document.getElementById("passwordSubmit"), + cancelButton: document.getElementById("passwordCancel") + }, + printContainer: document.getElementById("printContainer") + }; +} +function webViewerLoad() { + const config = getViewerConfiguration(); + PDFViewerApplication.run(config); +} +document.blockUnblockOnload?.(true); +if (document.readyState === "interactive" || document.readyState === "complete") { + webViewerLoad(); +} else { + document.addEventListener("DOMContentLoaded", webViewerLoad, true); +} + +var __webpack_exports__PDFViewerApplication = __webpack_exports__.PDFViewerApplication; +var __webpack_exports__PDFViewerApplicationConstants = __webpack_exports__.PDFViewerApplicationConstants; +var __webpack_exports__PDFViewerApplicationOptions = __webpack_exports__.PDFViewerApplicationOptions; +export { __webpack_exports__PDFViewerApplication as PDFViewerApplication, __webpack_exports__PDFViewerApplicationConstants as PDFViewerApplicationConstants, __webpack_exports__PDFViewerApplicationOptions as PDFViewerApplicationOptions }; |