/**
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* @licstart The following is the entire license notice for the
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* JavaScript code in this page
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*
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* Copyright 2024 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @licend The above is the entire license notice for the
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* JavaScript code in this page
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*/
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|
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;// ./web/pdfjs.js
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const {
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AbortException,
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AnnotationEditorLayer,
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AnnotationEditorParamsType,
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AnnotationEditorType,
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AnnotationEditorUIManager,
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AnnotationLayer,
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AnnotationMode,
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AnnotationType,
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build,
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ColorPicker,
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createValidAbsoluteUrl,
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DOMSVGFactory,
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DrawLayer,
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FeatureTest,
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fetchData,
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getDocument,
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getFilenameFromUrl,
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getPdfFilenameFromUrl,
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getUuid,
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getXfaPageViewport,
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GlobalWorkerOptions,
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ImageKind,
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InvalidPDFException,
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isDataScheme,
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isPdfFile,
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isValidExplicitDest,
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MathClamp,
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noContextMenu,
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normalizeUnicode,
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OPS,
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OutputScale,
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PasswordResponses,
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PDFDataRangeTransport,
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PDFDateString,
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PDFWorker,
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PermissionFlag,
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PixelsPerInch,
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RenderingCancelledException,
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ResponseException,
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setLayerDimensions,
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shadow,
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SignatureExtractor,
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stopEvent,
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SupportedImageMimeTypes,
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TextLayer,
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TouchManager,
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updateUrlHash,
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Util,
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VerbosityLevel,
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version,
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XfaLayer
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} = globalThis.pdfjsLib;
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;// ./web/ui_utils.js
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const DEFAULT_SCALE_VALUE = "auto";
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const DEFAULT_SCALE = 1.0;
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const DEFAULT_SCALE_DELTA = 1.1;
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const MIN_SCALE = 0.1;
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const MAX_SCALE = 10.0;
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const UNKNOWN_SCALE = 0;
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const MAX_AUTO_SCALE = 1.25;
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const SCROLLBAR_PADDING = 40;
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const VERTICAL_PADDING = 5;
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const RenderingStates = {
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INITIAL: 0,
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RUNNING: 1,
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PAUSED: 2,
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FINISHED: 3
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};
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const PresentationModeState = {
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UNKNOWN: 0,
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NORMAL: 1,
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CHANGING: 2,
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FULLSCREEN: 3
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};
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const SidebarView = {
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UNKNOWN: -1,
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NONE: 0,
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THUMBS: 1,
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OUTLINE: 2,
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ATTACHMENTS: 3,
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LAYERS: 4
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};
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const TextLayerMode = {
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DISABLE: 0,
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ENABLE: 1,
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ENABLE_PERMISSIONS: 2
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};
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const ScrollMode = {
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UNKNOWN: -1,
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VERTICAL: 0,
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HORIZONTAL: 1,
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WRAPPED: 2,
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PAGE: 3
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};
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const SpreadMode = {
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UNKNOWN: -1,
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NONE: 0,
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ODD: 1,
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EVEN: 2
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};
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const CursorTool = {
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SELECT: 0,
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HAND: 1,
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ZOOM: 2
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};
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const AutoPrintRegExp = /\bprint\s*\(/;
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function scrollIntoView(element, spot, scrollMatches = false) {
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let parent = element.offsetParent;
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if (!parent) {
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console.error("offsetParent is not set -- cannot scroll");
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return;
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}
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let offsetY = element.offsetTop + element.clientTop;
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let offsetX = element.offsetLeft + element.clientLeft;
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while (parent.clientHeight === parent.scrollHeight && parent.clientWidth === parent.scrollWidth || scrollMatches && (parent.classList.contains("markedContent") || getComputedStyle(parent).overflow === "hidden")) {
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offsetY += parent.offsetTop;
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offsetX += parent.offsetLeft;
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parent = parent.offsetParent;
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if (!parent) {
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return;
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}
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}
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if (spot) {
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if (spot.top !== undefined) {
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offsetY += spot.top;
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}
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if (spot.left !== undefined) {
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offsetX += spot.left;
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parent.scrollLeft = offsetX;
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}
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}
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parent.scrollTop = offsetY;
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}
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function watchScroll(viewAreaElement, callback, abortSignal = undefined) {
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const debounceScroll = function (evt) {
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if (rAF) {
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return;
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}
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rAF = window.requestAnimationFrame(function viewAreaElementScrolled() {
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rAF = null;
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const currentX = viewAreaElement.scrollLeft;
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const lastX = state.lastX;
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if (currentX !== lastX) {
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state.right = currentX > lastX;
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}
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state.lastX = currentX;
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const currentY = viewAreaElement.scrollTop;
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const lastY = state.lastY;
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if (currentY !== lastY) {
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state.down = currentY > lastY;
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}
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state.lastY = currentY;
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callback(state);
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});
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};
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const state = {
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right: true,
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down: true,
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lastX: viewAreaElement.scrollLeft,
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lastY: viewAreaElement.scrollTop,
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_eventHandler: debounceScroll
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};
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let rAF = null;
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viewAreaElement.addEventListener("scroll", debounceScroll, {
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useCapture: true,
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signal: abortSignal
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});
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abortSignal?.addEventListener("abort", () => window.cancelAnimationFrame(rAF), {
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once: true
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});
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return state;
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}
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function parseQueryString(query) {
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const params = new Map();
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for (const [key, value] of new URLSearchParams(query)) {
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params.set(key.toLowerCase(), value);
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}
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return params;
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}
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const InvisibleCharsRegExp = /[\x00-\x1F]/g;
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function removeNullCharacters(str, replaceInvisible = false) {
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if (!InvisibleCharsRegExp.test(str)) {
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return str;
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}
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if (replaceInvisible) {
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return str.replaceAll(InvisibleCharsRegExp, m => m === "\x00" ? "" : " ");
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}
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return str.replaceAll("\x00", "");
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}
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function binarySearchFirstItem(items, condition, start = 0) {
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let minIndex = start;
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let maxIndex = items.length - 1;
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if (maxIndex < 0 || !condition(items[maxIndex])) {
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return items.length;
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}
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if (condition(items[minIndex])) {
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return minIndex;
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}
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while (minIndex < maxIndex) {
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const currentIndex = minIndex + maxIndex >> 1;
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const currentItem = items[currentIndex];
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if (condition(currentItem)) {
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maxIndex = currentIndex;
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} else {
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minIndex = currentIndex + 1;
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}
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}
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return minIndex;
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}
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function approximateFraction(x) {
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if (Math.floor(x) === x) {
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return [x, 1];
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}
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const xinv = 1 / x;
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const limit = 8;
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if (xinv > limit) {
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return [1, limit];
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} else if (Math.floor(xinv) === xinv) {
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return [1, xinv];
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}
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const x_ = x > 1 ? xinv : x;
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let a = 0,
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b = 1,
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c = 1,
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d = 1;
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while (true) {
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const p = a + c,
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q = b + d;
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if (q > limit) {
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break;
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}
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if (x_ <= p / q) {
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c = p;
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d = q;
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} else {
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a = p;
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b = q;
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}
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}
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let result;
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if (x_ - a / b < c / d - x_) {
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result = x_ === x ? [a, b] : [b, a];
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} else {
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result = x_ === x ? [c, d] : [d, c];
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}
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return result;
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}
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function floorToDivide(x, div) {
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return x - x % div;
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}
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function getPageSizeInches({
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view,
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userUnit,
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rotate
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}) {
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const [x1, y1, x2, y2] = view;
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const changeOrientation = rotate % 180 !== 0;
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const width = (x2 - x1) / 72 * userUnit;
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const height = (y2 - y1) / 72 * userUnit;
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return {
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width: changeOrientation ? height : width,
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height: changeOrientation ? width : height
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};
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}
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function backtrackBeforeAllVisibleElements(index, views, top) {
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if (index < 2) {
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return index;
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}
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let elt = views[index].div;
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let pageTop = elt.offsetTop + elt.clientTop;
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if (pageTop >= top) {
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elt = views[index - 1].div;
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pageTop = elt.offsetTop + elt.clientTop;
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}
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for (let i = index - 2; i >= 0; --i) {
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elt = views[i].div;
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if (elt.offsetTop + elt.clientTop + elt.clientHeight <= pageTop) {
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break;
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}
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index = i;
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}
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return index;
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}
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function getVisibleElements({
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scrollEl,
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views,
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sortByVisibility = false,
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horizontal = false,
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rtl = false
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}) {
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const top = scrollEl.scrollTop,
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bottom = top + scrollEl.clientHeight;
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const left = scrollEl.scrollLeft,
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right = left + scrollEl.clientWidth;
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function isElementBottomAfterViewTop(view) {
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const element = view.div;
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const elementBottom = element.offsetTop + element.clientTop + element.clientHeight;
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return elementBottom > top;
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}
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function isElementNextAfterViewHorizontally(view) {
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const element = view.div;
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const elementLeft = element.offsetLeft + element.clientLeft;
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const elementRight = elementLeft + element.clientWidth;
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return rtl ? elementLeft < right : elementRight > left;
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}
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const visible = [],
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ids = new Set(),
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numViews = views.length;
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let firstVisibleElementInd = binarySearchFirstItem(views, horizontal ? isElementNextAfterViewHorizontally : isElementBottomAfterViewTop);
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if (firstVisibleElementInd > 0 && firstVisibleElementInd < numViews && !horizontal) {
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firstVisibleElementInd = backtrackBeforeAllVisibleElements(firstVisibleElementInd, views, top);
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}
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let lastEdge = horizontal ? right : -1;
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for (let i = firstVisibleElementInd; i < numViews; i++) {
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const view = views[i],
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element = view.div;
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const currentWidth = element.offsetLeft + element.clientLeft;
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const currentHeight = element.offsetTop + element.clientTop;
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const viewWidth = element.clientWidth,
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viewHeight = element.clientHeight;
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const viewRight = currentWidth + viewWidth;
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const viewBottom = currentHeight + viewHeight;
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if (lastEdge === -1) {
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if (viewBottom >= bottom) {
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lastEdge = viewBottom;
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}
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} else if ((horizontal ? currentWidth : currentHeight) > lastEdge) {
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break;
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}
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if (viewBottom <= top || currentHeight >= bottom || viewRight <= left || currentWidth >= right) {
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continue;
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}
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const minY = Math.max(0, top - currentHeight);
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const minX = Math.max(0, left - currentWidth);
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const hiddenHeight = minY + Math.max(0, viewBottom - bottom);
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const hiddenWidth = minX + Math.max(0, viewRight - right);
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const fractionHeight = (viewHeight - hiddenHeight) / viewHeight,
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fractionWidth = (viewWidth - hiddenWidth) / viewWidth;
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const percent = fractionHeight * fractionWidth * 100 | 0;
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visible.push({
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id: view.id,
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x: currentWidth,
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y: currentHeight,
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visibleArea: percent === 100 ? null : {
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minX,
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minY,
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maxX: Math.min(viewRight, right) - currentWidth,
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maxY: Math.min(viewBottom, bottom) - currentHeight
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},
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view,
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percent,
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widthPercent: fractionWidth * 100 | 0
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});
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ids.add(view.id);
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}
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const first = visible[0],
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last = visible.at(-1);
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if (sortByVisibility) {
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visible.sort(function (a, b) {
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const pc = a.percent - b.percent;
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if (Math.abs(pc) > 0.001) {
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return -pc;
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}
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return a.id - b.id;
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});
|
}
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return {
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first,
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last,
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views: visible,
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ids
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};
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}
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function normalizeWheelEventDirection(evt) {
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let delta = Math.hypot(evt.deltaX, evt.deltaY);
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const angle = Math.atan2(evt.deltaY, evt.deltaX);
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if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
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delta = -delta;
|
}
|
return delta;
|
}
|
function normalizeWheelEventDelta(evt) {
|
const deltaMode = evt.deltaMode;
|
let delta = normalizeWheelEventDirection(evt);
|
const MOUSE_PIXELS_PER_LINE = 30;
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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;
|
class ProgressBar {
|
#classList = null;
|
#disableAutoFetchTimeout = null;
|
#percent = 0;
|
#style = null;
|
#visible = true;
|
constructor(bar) {
|
this.#classList = bar.classList;
|
this.#style = bar.style;
|
}
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get percent() {
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return this.#percent;
|
}
|
set percent(val) {
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this.#percent = MathClamp(val, 0, 100);
|
if (isNaN(val)) {
|
this.#classList.add("indeterminate");
|
return;
|
}
|
this.#classList.remove("indeterminate");
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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 (this.#percent === 100 || 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);
|
}
|
const calcRound = function () {
|
const e = document.createElement("div");
|
e.style.width = "round(down, calc(1.6666666666666665 * 792px), 1px)";
|
return e.style.width === "calc(1320px)" ? Math.fround : x => x;
|
}();
|
|
;// ./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;
|
}
|
|
;// ./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}*$/u;
|
const NOT_DIACRITIC_FROM_START_REG_EXP = /^\p{M}*([^\p{M}])/u;
|
const SYLLABLES_REG_EXP = /[\uAC00-\uD7AF\uFA6C\uFACF-\uFAD1\uFAD5-\uFAD7]+/g;
|
const SYLLABLES_LENGTHS = new Map();
|
const FIRST_CHAR_SYLLABLES_REG_EXP = "[\\u1100-\\u1112\\ud7a4-\\ud7af\\ud84a\\ud84c\\ud850\\ud854\\ud857\\ud85f]";
|
const NFKC_CHARS_TO_NORMALIZE = new Map();
|
let noSyllablesRegExp = null;
|
let withSyllablesRegExp = null;
|
function normalize(text) {
|
const syllablePositions = [];
|
let m;
|
while ((m = SYLLABLES_REG_EXP.exec(text)) !== null) {
|
let {
|
index
|
} = m;
|
for (const char of m[0]) {
|
let len = SYLLABLES_LENGTHS.get(char);
|
if (!len) {
|
len = char.normalize("NFD").length;
|
SYLLABLES_LENGTHS.set(char, len);
|
}
|
syllablePositions.push([len, index++]);
|
}
|
}
|
const hasSyllables = syllablePositions.length > 0;
|
let normalizationRegex;
|
if (!hasSyllables && noSyllablesRegExp) {
|
normalizationRegex = noSyllablesRegExp;
|
} else if (hasSyllables && withSyllablesRegExp) {
|
normalizationRegex = withSyllablesRegExp;
|
} else {
|
const replace = Object.keys(CHARACTERS_TO_NORMALIZE).join("");
|
const toNormalizeWithNFKC = getNormalizeWithNFKC();
|
const CJK = "(?:\\p{Ideographic}|[\u3040-\u30FF])";
|
const HKDiacritics = "(?:\u3099|\u309A)";
|
const BrokenWord = `\\p{Ll}-\\n(?=\\p{Ll})|\\p{Lu}-\\n(?=\\p{L})`;
|
const regexps = [`[${replace}]`, `[${toNormalizeWithNFKC}]`, `${HKDiacritics}\\n`, "\\p{M}+(?:-\\n)?", `${BrokenWord}`, "\\S-\\n", `${CJK}\\n`, "\\n", hasSyllables ? FIRST_CHAR_SYLLABLES_REG_EXP : "\\u0000"];
|
normalizationRegex = new RegExp(regexps.map(r => `(${r})`).join("|"), "gum");
|
if (hasSyllables) {
|
withSyllablesRegExp = normalizationRegex;
|
} else {
|
noSyllablesRegExp = normalizationRegex;
|
}
|
}
|
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, p9, 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) {
|
shiftOrigin += 1;
|
eol += 1;
|
return p6.slice(0, -1);
|
}
|
if (p7) {
|
const len = p7.length - 1;
|
positions.push(i - shift + len, shift);
|
shiftOrigin += 1;
|
eol += 1;
|
return p7.slice(0, -1);
|
}
|
if (p8) {
|
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 p9;
|
});
|
positions.push(normalized.length, shift);
|
const starts = new Uint32Array(positions.length >> 1);
|
const shifts = new Int32Array(positions.length >> 1);
|
for (let i = 0, ii = positions.length; i < ii; i += 2) {
|
starts[i >> 1] = positions[i];
|
shifts[i >> 1] = positions[i + 1];
|
}
|
return [normalized, [starts, shifts], hasDiacritics];
|
}
|
function getOriginalIndex(diffs, pos, len) {
|
if (!diffs) {
|
return [pos, len];
|
}
|
const [starts, shifts] = diffs;
|
const start = pos;
|
const end = pos + len - 1;
|
let i = binarySearchFirstItem(starts, x => x >= start);
|
if (starts[i] > start) {
|
--i;
|
}
|
let j = binarySearchFirstItem(starts, x => x >= end, i);
|
if (starts[j] > end) {
|
--j;
|
}
|
const oldStart = start + shifts[i];
|
const oldEnd = end + shifts[j];
|
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 = Promise.withResolvers();
|
}
|
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;
|
}
|
#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}]|$)`;
|
}
|
}
|
return [isUnicode, query];
|
}
|
#calculateMatch(pageIndex) {
|
if (!this.#state) {
|
return;
|
}
|
const query = this.#query;
|
if (query.length === 0) {
|
return;
|
}
|
const pageContent = this._pageContents[pageIndex];
|
const matcherResult = this.match(query, pageContent, pageIndex);
|
const matches = this._pageMatches[pageIndex] = [];
|
const matchesLength = this._pageMatchesLength[pageIndex] = [];
|
const diffs = this._pageDiffs[pageIndex];
|
matcherResult?.forEach(({
|
index,
|
length
|
}) => {
|
const [matchPos, matchLen] = getOriginalIndex(diffs, index, length);
|
if (matchLen) {
|
matches.push(matchPos);
|
matchesLength.push(matchLen);
|
}
|
});
|
if (this.#state.highlightAll) {
|
this.#updatePage(pageIndex);
|
}
|
if (this._resumePageIdx === pageIndex) {
|
this._resumePageIdx = null;
|
this.#nextPageMatch();
|
}
|
const pageMatchesCount = matches.length;
|
this._matchesCountTotal += pageMatchesCount;
|
if (this.#updateMatchesCountOnProgress) {
|
if (pageMatchesCount > 0) {
|
this.#updateUIResultsCount();
|
}
|
} else if (++this.#visitedPagesCount === this._linkService.pagesCount) {
|
this.#updateUIResultsCount();
|
}
|
}
|
match(query, pageContent, pageIndex) {
|
const hasDiacritics = this._hasDiacritics[pageIndex];
|
let isUnicode = false;
|
if (typeof query === "string") {
|
[isUnicode, query] = this.#convertToRegExpString(query, hasDiacritics);
|
} else {
|
query = query.sort().reverse().map(q => {
|
const [isUnicodePart, queryPart] = this.#convertToRegExpString(q, hasDiacritics);
|
isUnicode ||= isUnicodePart;
|
return `(${queryPart})`;
|
}).join("|");
|
}
|
if (!query) {
|
return undefined;
|
}
|
const {
|
caseSensitive,
|
entireWord
|
} = this.#state;
|
const flags = `g${isUnicode ? "u" : ""}${caseSensitive ? "" : "i"}`;
|
query = new RegExp(query, flags);
|
const matches = [];
|
let match;
|
while ((match = query.exec(pageContent)) !== null) {
|
if (entireWord && !this.#isEntireWord(pageContent, match.index, match[0].length)) {
|
continue;
|
}
|
matches.push({
|
index: match.index,
|
length: match[0].length
|
});
|
}
|
return matches;
|
}
|
#extractText() {
|
if (this._extractTextPromises.length > 0) {
|
return;
|
}
|
let deferred = Promise.resolve();
|
const textOptions = {
|
disableNormalization: true
|
};
|
const pdfDoc = this._pdfDocument;
|
for (let i = 0, ii = this._linkService.pagesCount; i < ii; i++) {
|
const {
|
promise,
|
resolve
|
} = Promise.withResolvers();
|
this._extractTextPromises[i] = promise;
|
deferred = deferred.then(async () => {
|
if (pdfDoc !== this._pdfDocument) {
|
resolve();
|
return;
|
}
|
await pdfDoc.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(""));
|
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;
|
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,
|
entireWord: this.#state?.entireWord ?? null,
|
matchesCount: this.#requestMatchesCount(),
|
rawQuery: this.#state?.query ?? null
|
});
|
}
|
}
|
|
;// ./web/pdf_link_service.js
|
|
|
const DEFAULT_LINK_REL = "noopener noreferrer nofollow";
|
const LinkTarget = {
|
NONE: 0,
|
SELF: 1,
|
BLANK: 2,
|
PARENT: 3,
|
TOP: 4
|
};
|
class PDFLinkService {
|
externalLinkEnabled = true;
|
constructor({
|
eventBus,
|
externalLinkTarget = null,
|
externalLinkRel = null,
|
ignoreDestinationZoom = false
|
} = {}) {
|
this.eventBus = eventBus;
|
this.externalLinkTarget = externalLinkTarget;
|
this.externalLinkRel = externalLinkRel;
|
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;
|
}
|
setViewer(pdfViewer) {
|
this.pdfViewer = pdfViewer;
|
}
|
setHistory(pdfHistory) {
|
this.pdfHistory = pdfHistory;
|
}
|
get pagesCount() {
|
return this.pdfDocument ? this.pdfDocument.numPages : 0;
|
}
|
get page() {
|
return this.pdfDocument ? this.pdfViewer.currentPageNumber : 1;
|
}
|
set page(value) {
|
if (this.pdfDocument) {
|
this.pdfViewer.currentPageNumber = value;
|
}
|
}
|
get rotation() {
|
return this.pdfDocument ? this.pdfViewer.pagesRotation : 0;
|
}
|
set rotation(value) {
|
if (this.pdfDocument) {
|
this.pdfViewer.pagesRotation = value;
|
}
|
}
|
get isInPresentationMode() {
|
return this.pdfDocument ? this.pdfViewer.isInPresentationMode : false;
|
}
|
async goToDestination(dest) {
|
if (!this.pdfDocument) {
|
return;
|
}
|
let namedDest, explicitDest, pageNumber;
|
if (typeof dest === "string") {
|
namedDest = dest;
|
explicitDest = await this.pdfDocument.getDestination(dest);
|
} else {
|
namedDest = null;
|
explicitDest = await dest;
|
}
|
if (!Array.isArray(explicitDest)) {
|
console.error(`goToDestination: "${explicitDest}" is not a valid destination array, for dest="${dest}".`);
|
return;
|
}
|
const [destRef] = explicitDest;
|
if (destRef && typeof destRef === "object") {
|
pageNumber = this.pdfDocument.cachedPageNumber(destRef);
|
if (!pageNumber) {
|
try {
|
pageNumber = (await this.pdfDocument.getPageIndex(destRef)) + 1;
|
} catch {
|
console.error(`goToDestination: "${destRef}" is not a valid page reference, for dest="${dest}".`);
|
return;
|
}
|
}
|
} else if (Number.isInteger(destRef)) {
|
pageNumber = destRef + 1;
|
}
|
if (!pageNumber || pageNumber < 1 || pageNumber > this.pagesCount) {
|
console.error(`goToDestination: "${pageNumber}" is not a valid page number, for dest="${dest}".`);
|
return;
|
}
|
if (this.pdfHistory) {
|
this.pdfHistory.pushCurrentPosition();
|
this.pdfHistory.push({
|
namedDest,
|
explicitDest,
|
pageNumber
|
});
|
}
|
this.pdfViewer.scrollPageIntoView({
|
pageNumber,
|
destArray: explicitDest,
|
ignoreDestinationZoom: this._ignoreDestinationZoom
|
});
|
}
|
goToPage(val) {
|
if (!this.pdfDocument) {
|
return;
|
}
|
const pageNumber = typeof val === "string" && this.pdfViewer.pageLabelToPageNumber(val) || val | 0;
|
if (!(Number.isInteger(pageNumber) && pageNumber > 0 && pageNumber <= this.pagesCount)) {
|
console.error(`PDFLinkService.goToPage: "${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) {
|
if (!url || typeof url !== "string") {
|
throw new Error('A valid "url" parameter must provided.');
|
}
|
const target = newWindow ? LinkTarget.BLANK : this.externalLinkTarget,
|
rel = this.externalLinkRel;
|
if (this.externalLinkEnabled) {
|
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;
|
}
|
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"));
|
}
|
return;
|
}
|
dest = unescape(hash);
|
try {
|
dest = JSON.parse(dest);
|
if (!Array.isArray(dest)) {
|
dest = dest.toString();
|
}
|
} catch {}
|
if (typeof dest === "string" || isValidExplicitDest(dest)) {
|
this.goToDestination(dest);
|
return;
|
}
|
console.error(`PDFLinkService.setHash: "${unescape(hash)}" is not a valid destination.`);
|
}
|
executeNamedAction(action) {
|
if (!this.pdfDocument) {
|
return;
|
}
|
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) {
|
if (!this.pdfDocument) {
|
return;
|
}
|
const pdfDocument = this.pdfDocument,
|
optionalContentConfig = await this.pdfViewer.optionalContentConfigPromise;
|
if (pdfDocument !== this.pdfDocument) {
|
return;
|
}
|
optionalContentConfig.setOCGState(action);
|
this.pdfViewer.optionalContentConfigPromise = Promise.resolve(optionalContentConfig);
|
}
|
}
|
class SimpleLinkService extends PDFLinkService {
|
setDocument(pdfDocument, baseUrl = null) {}
|
}
|
|
;// ./web/annotation_layer_builder.js
|
|
|
class AnnotationLayerBuilder {
|
#annotations = null;
|
#externalHide = false;
|
#onAppend = null;
|
#eventAbortController = null;
|
#linksInjected = false;
|
constructor({
|
pdfPage,
|
linkService,
|
downloadManager,
|
annotationStorage = null,
|
imageResourcesPath = "",
|
renderForms = true,
|
enableScripting = false,
|
hasJSActionsPromise = null,
|
fieldObjectsPromise = null,
|
annotationCanvasMap = null,
|
accessibilityManager = null,
|
annotationEditorUIManager = null,
|
onAppend = null
|
}) {
|
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._annotationEditorUIManager = annotationEditorUIManager;
|
this.#onAppend = onAppend;
|
this.annotationLayer = null;
|
this.div = null;
|
this._cancelled = false;
|
this._eventBus = linkService.eventBus;
|
}
|
async render({
|
viewport,
|
intent = "display",
|
structTreeLayer = null
|
}) {
|
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.#onAppend?.(div);
|
if (annotations.length === 0) {
|
this.#annotations = annotations;
|
this.hide(true);
|
return;
|
}
|
this.#initAnnotationLayer(viewport, structTreeLayer);
|
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
|
});
|
this.#annotations = annotations;
|
if (this.linkService.isInPresentationMode) {
|
this.#updatePresentationModeState(PresentationModeState.FULLSCREEN);
|
}
|
if (!this.#eventAbortController) {
|
this.#eventAbortController = new AbortController();
|
this._eventBus?._on("presentationmodechanged", evt => {
|
this.#updatePresentationModeState(evt.state);
|
}, {
|
signal: this.#eventAbortController.signal
|
});
|
}
|
}
|
#initAnnotationLayer(viewport, structTreeLayer) {
|
this.annotationLayer = new AnnotationLayer({
|
div: this.div,
|
accessibilityManager: this._accessibilityManager,
|
annotationCanvasMap: this._annotationCanvasMap,
|
annotationEditorUIManager: this._annotationEditorUIManager,
|
page: this.pdfPage,
|
viewport: viewport.clone({
|
dontFlip: true
|
}),
|
structTreeLayer
|
});
|
}
|
cancel() {
|
this._cancelled = true;
|
this.#eventAbortController?.abort();
|
this.#eventAbortController = null;
|
}
|
hide(internal = false) {
|
this.#externalHide = !internal;
|
if (!this.div) {
|
return;
|
}
|
this.div.hidden = true;
|
}
|
hasEditableAnnotations() {
|
return !!this.annotationLayer?.hasEditableAnnotations();
|
}
|
async injectLinkAnnotations({
|
inferredLinks,
|
viewport,
|
structTreeLayer = null
|
}) {
|
if (this.#annotations === null) {
|
throw new Error("`render` method must be called before `injectLinkAnnotations`.");
|
}
|
if (this._cancelled || this.#linksInjected) {
|
return;
|
}
|
this.#linksInjected = true;
|
const newLinks = this.#annotations.length ? this.#checkInferredLinks(inferredLinks) : inferredLinks;
|
if (!newLinks.length) {
|
return;
|
}
|
if (!this.annotationLayer) {
|
this.#initAnnotationLayer(viewport, structTreeLayer);
|
setLayerDimensions(this.div, viewport);
|
}
|
await this.annotationLayer.addLinkAnnotations(newLinks, this.linkService);
|
if (!this.#externalHide) {
|
this.div.hidden = false;
|
}
|
}
|
#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;
|
}
|
}
|
#checkInferredLinks(inferredLinks) {
|
function annotationRects(annot) {
|
if (!annot.quadPoints) {
|
return [annot.rect];
|
}
|
const rects = [];
|
for (let i = 2, ii = annot.quadPoints.length; i < ii; i += 8) {
|
const trX = annot.quadPoints[i];
|
const trY = annot.quadPoints[i + 1];
|
const blX = annot.quadPoints[i + 2];
|
const blY = annot.quadPoints[i + 3];
|
rects.push([blX, blY, trX, trY]);
|
}
|
return rects;
|
}
|
function intersectAnnotations(annot1, annot2) {
|
const intersections = [];
|
const annot1Rects = annotationRects(annot1);
|
const annot2Rects = annotationRects(annot2);
|
for (const rect1 of annot1Rects) {
|
for (const rect2 of annot2Rects) {
|
const intersection = Util.intersect(rect1, rect2);
|
if (intersection) {
|
intersections.push(intersection);
|
}
|
}
|
}
|
return intersections;
|
}
|
function areaRects(rects) {
|
let totalArea = 0;
|
for (const rect of rects) {
|
totalArea += Math.abs((rect[2] - rect[0]) * (rect[3] - rect[1]));
|
}
|
return totalArea;
|
}
|
return inferredLinks.filter(link => {
|
let linkAreaRects;
|
for (const annotation of this.#annotations) {
|
if (annotation.annotationType !== AnnotationType.LINK || !annotation.url) {
|
continue;
|
}
|
const intersections = intersectAnnotations(annotation, link);
|
if (intersections.length === 0) {
|
continue;
|
}
|
linkAreaRects ??= areaRects(annotationRects(link));
|
if (areaRects(intersections) / linkAreaRects > 0.5) {
|
return false;
|
}
|
}
|
return true;
|
});
|
}
|
}
|
|
;// ./web/download_manager.js
|
|
function download(blobUrl, filename) {
|
const a = document.createElement("a");
|
if (!a.click) {
|
throw new Error('DownloadManager: "a.click()" is not supported.');
|
}
|
a.href = blobUrl;
|
a.target = "_parent";
|
if ("download" in a) {
|
a.download = filename;
|
}
|
(document.body || document.documentElement).append(a);
|
a.click();
|
a.remove();
|
}
|
class DownloadManager {
|
#openBlobUrls = new WeakMap();
|
downloadData(data, filename, contentType) {
|
const blobUrl = URL.createObjectURL(new Blob([data], {
|
type: contentType
|
}));
|
download(blobUrl, filename);
|
}
|
openOrDownloadData(data, filename, dest = null) {
|
const isPdfData = isPdfFile(filename);
|
const contentType = isPdfData ? "application/pdf" : "";
|
this.downloadData(data, filename, contentType);
|
return false;
|
}
|
download(data, url, filename) {
|
let blobUrl;
|
if (data) {
|
blobUrl = URL.createObjectURL(new Blob([data], {
|
type: "application/pdf"
|
}));
|
} else {
|
if (!createValidAbsoluteUrl(url, "http://example.com")) {
|
console.error(`download - not a valid URL: ${url}`);
|
return;
|
}
|
blobUrl = url + "#pdfjs.action=download";
|
}
|
download(blobUrl, filename);
|
}
|
}
|
|
;// ./web/event_utils.js
|
const WaitOnType = {
|
EVENT: "event",
|
TIMEOUT: "timeout"
|
};
|
async function waitOnEventOrTimeout({
|
target,
|
name,
|
delay = 0
|
}) {
|
if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
|
throw new Error("waitOnEventOrTimeout - invalid parameters.");
|
}
|
const {
|
promise,
|
resolve
|
} = Promise.withResolvers();
|
const ac = new AbortController();
|
function handler(type) {
|
ac.abort();
|
clearTimeout(timeout);
|
resolve(type);
|
}
|
const evtMethod = target instanceof EventBus ? "_on" : "addEventListener";
|
target[evtMethod](name, handler.bind(null, WaitOnType.EVENT), {
|
signal: ac.signal
|
});
|
const timeout = setTimeout(handler.bind(null, WaitOnType.TIMEOUT), delay);
|
return promise;
|
}
|
class EventBus {
|
#listeners = Object.create(null);
|
on(eventName, listener, options = null) {
|
this._on(eventName, listener, {
|
external: true,
|
once: options?.once,
|
signal: options?.signal
|
});
|
}
|
off(eventName, listener, options = null) {
|
this._off(eventName, listener);
|
}
|
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) {
|
let rmAbort = null;
|
if (options?.signal instanceof AbortSignal) {
|
const {
|
signal
|
} = options;
|
if (signal.aborted) {
|
console.error("Cannot use an `aborted` signal.");
|
return;
|
}
|
const onAbort = () => this._off(eventName, listener);
|
rmAbort = () => signal.removeEventListener("abort", onAbort);
|
signal.addEventListener("abort", onAbort);
|
}
|
const eventListeners = this.#listeners[eventName] ||= [];
|
eventListeners.push({
|
listener,
|
external: options?.external === true,
|
once: options?.once === true,
|
rmAbort
|
});
|
}
|
_off(eventName, listener, options = null) {
|
const eventListeners = this.#listeners[eventName];
|
if (!eventListeners) {
|
return;
|
}
|
for (let i = 0, ii = eventListeners.length; i < ii; i++) {
|
const evt = eventListeners[i];
|
if (evt.listener === listener) {
|
evt.rmAbort?.();
|
eventListeners.splice(i, 1);
|
return;
|
}
|
}
|
}
|
}
|
class FirefoxEventBus extends EventBus {
|
#externalServices;
|
#globalEventNames;
|
#isInAutomation;
|
constructor(globalEventNames, externalServices, isInAutomation) {
|
super();
|
this.#globalEventNames = globalEventNames;
|
this.#externalServices = externalServices;
|
this.#isInAutomation = isInAutomation;
|
}
|
dispatch(eventName, data) {
|
throw new Error("Not implemented: FirefoxEventBus.dispatch");
|
}
|
}
|
|
;// ./node_modules/@fluent/bundle/esm/types.js
|
class FluentType {
|
constructor(value) {
|
this.value = value;
|
}
|
valueOf() {
|
return this.value;
|
}
|
}
|
class FluentNone extends FluentType {
|
constructor(value = "???") {
|
super(value);
|
}
|
toString(scope) {
|
return `{${this.value}}`;
|
}
|
}
|
class FluentNumber extends FluentType {
|
constructor(value, opts = {}) {
|
super(value);
|
this.opts = opts;
|
}
|
toString(scope) {
|
if (scope) {
|
try {
|
const nf = scope.memoizeIntlObject(Intl.NumberFormat, this.opts);
|
return nf.format(this.value);
|
} catch (err) {
|
scope.reportError(err);
|
}
|
}
|
return this.value.toString(10);
|
}
|
}
|
class FluentDateTime extends FluentType {
|
static supportsValue(value) {
|
if (typeof value === "number") return true;
|
if (value instanceof Date) return true;
|
if (value instanceof FluentType) return FluentDateTime.supportsValue(value.valueOf());
|
if ("Temporal" in globalThis) {
|
const _Temporal = globalThis.Temporal;
|
if (value instanceof _Temporal.Instant || value instanceof _Temporal.PlainDateTime || value instanceof _Temporal.PlainDate || value instanceof _Temporal.PlainMonthDay || value instanceof _Temporal.PlainTime || value instanceof _Temporal.PlainYearMonth) {
|
return true;
|
}
|
}
|
return false;
|
}
|
constructor(value, opts = {}) {
|
if (value instanceof FluentDateTime) {
|
opts = {
|
...value.opts,
|
...opts
|
};
|
value = value.value;
|
} else if (value instanceof FluentType) {
|
value = value.valueOf();
|
}
|
if (typeof value === "object" && "calendarId" in value && opts.calendar === undefined) {
|
opts = {
|
...opts,
|
calendar: value.calendarId
|
};
|
}
|
super(value);
|
this.opts = opts;
|
}
|
[Symbol.toPrimitive](hint) {
|
return hint === "string" ? this.toString() : this.toNumber();
|
}
|
toNumber() {
|
const value = this.value;
|
if (typeof value === "number") return value;
|
if (value instanceof Date) return value.getTime();
|
if ("epochMilliseconds" in value) {
|
return value.epochMilliseconds;
|
}
|
if ("toZonedDateTime" in value) {
|
return value.toZonedDateTime("UTC").epochMilliseconds;
|
}
|
throw new TypeError("Unwrapping a non-number value as a number");
|
}
|
toString(scope) {
|
if (scope) {
|
try {
|
const dtf = scope.memoizeIntlObject(Intl.DateTimeFormat, this.opts);
|
return dtf.format(this.value);
|
} catch (err) {
|
scope.reportError(err);
|
}
|
}
|
if (typeof this.value === "number" || this.value instanceof Date) {
|
return new Date(this.value).toISOString();
|
}
|
return this.value.toString();
|
}
|
}
|
;// ./node_modules/@fluent/bundle/esm/resolver.js
|
|
const MAX_PLACEABLES = 100;
|
const FSI = "\u2068";
|
const PDI = "\u2069";
|
function match(scope, selector, key) {
|
if (key === selector) {
|
return true;
|
}
|
if (key instanceof FluentNumber && selector instanceof FluentNumber && key.value === selector.value) {
|
return true;
|
}
|
if (selector instanceof FluentNumber && typeof key === "string") {
|
let category = scope.memoizeIntlObject(Intl.PluralRules, selector.opts).select(selector.value);
|
if (key === category) {
|
return true;
|
}
|
}
|
return false;
|
}
|
function getDefault(scope, variants, star) {
|
if (variants[star]) {
|
return resolvePattern(scope, variants[star].value);
|
}
|
scope.reportError(new RangeError("No default"));
|
return new FluentNone();
|
}
|
function getArguments(scope, args) {
|
const positional = [];
|
const named = Object.create(null);
|
for (const arg of args) {
|
if (arg.type === "narg") {
|
named[arg.name] = resolveExpression(scope, arg.value);
|
} else {
|
positional.push(resolveExpression(scope, arg));
|
}
|
}
|
return {
|
positional,
|
named
|
};
|
}
|
function resolveExpression(scope, expr) {
|
switch (expr.type) {
|
case "str":
|
return expr.value;
|
case "num":
|
return new FluentNumber(expr.value, {
|
minimumFractionDigits: expr.precision
|
});
|
case "var":
|
return resolveVariableReference(scope, expr);
|
case "mesg":
|
return resolveMessageReference(scope, expr);
|
case "term":
|
return resolveTermReference(scope, expr);
|
case "func":
|
return resolveFunctionReference(scope, expr);
|
case "select":
|
return resolveSelectExpression(scope, expr);
|
default:
|
return new FluentNone();
|
}
|
}
|
function resolveVariableReference(scope, {
|
name
|
}) {
|
let arg;
|
if (scope.params) {
|
if (Object.prototype.hasOwnProperty.call(scope.params, name)) {
|
arg = scope.params[name];
|
} else {
|
return new FluentNone(`$${name}`);
|
}
|
} else if (scope.args && Object.prototype.hasOwnProperty.call(scope.args, name)) {
|
arg = scope.args[name];
|
} else {
|
scope.reportError(new ReferenceError(`Unknown variable: $${name}`));
|
return new FluentNone(`$${name}`);
|
}
|
if (arg instanceof FluentType) {
|
return arg;
|
}
|
switch (typeof arg) {
|
case "string":
|
return arg;
|
case "number":
|
return new FluentNumber(arg);
|
case "object":
|
if (FluentDateTime.supportsValue(arg)) {
|
return new FluentDateTime(arg);
|
}
|
default:
|
scope.reportError(new TypeError(`Variable type not supported: $${name}, ${typeof arg}`));
|
return new FluentNone(`$${name}`);
|
}
|
}
|
function resolveMessageReference(scope, {
|
name,
|
attr
|
}) {
|
const message = scope.bundle._messages.get(name);
|
if (!message) {
|
scope.reportError(new ReferenceError(`Unknown message: ${name}`));
|
return new FluentNone(name);
|
}
|
if (attr) {
|
const attribute = message.attributes[attr];
|
if (attribute) {
|
return resolvePattern(scope, attribute);
|
}
|
scope.reportError(new ReferenceError(`Unknown attribute: ${attr}`));
|
return new FluentNone(`${name}.${attr}`);
|
}
|
if (message.value) {
|
return resolvePattern(scope, message.value);
|
}
|
scope.reportError(new ReferenceError(`No value: ${name}`));
|
return new FluentNone(name);
|
}
|
function resolveTermReference(scope, {
|
name,
|
attr,
|
args
|
}) {
|
const id = `-${name}`;
|
const term = scope.bundle._terms.get(id);
|
if (!term) {
|
scope.reportError(new ReferenceError(`Unknown term: ${id}`));
|
return new FluentNone(id);
|
}
|
if (attr) {
|
const attribute = term.attributes[attr];
|
if (attribute) {
|
scope.params = getArguments(scope, args).named;
|
const resolved = resolvePattern(scope, attribute);
|
scope.params = null;
|
return resolved;
|
}
|
scope.reportError(new ReferenceError(`Unknown attribute: ${attr}`));
|
return new FluentNone(`${id}.${attr}`);
|
}
|
scope.params = getArguments(scope, args).named;
|
const resolved = resolvePattern(scope, term.value);
|
scope.params = null;
|
return resolved;
|
}
|
function resolveFunctionReference(scope, {
|
name,
|
args
|
}) {
|
let func = scope.bundle._functions[name];
|
if (!func) {
|
scope.reportError(new ReferenceError(`Unknown function: ${name}()`));
|
return new FluentNone(`${name}()`);
|
}
|
if (typeof func !== "function") {
|
scope.reportError(new TypeError(`Function ${name}() is not callable`));
|
return new FluentNone(`${name}()`);
|
}
|
try {
|
let resolved = getArguments(scope, args);
|
return func(resolved.positional, resolved.named);
|
} catch (err) {
|
scope.reportError(err);
|
return new FluentNone(`${name}()`);
|
}
|
}
|
function resolveSelectExpression(scope, {
|
selector,
|
variants,
|
star
|
}) {
|
let sel = resolveExpression(scope, selector);
|
if (sel instanceof FluentNone) {
|
return getDefault(scope, variants, star);
|
}
|
for (const variant of variants) {
|
const key = resolveExpression(scope, variant.key);
|
if (match(scope, sel, key)) {
|
return resolvePattern(scope, variant.value);
|
}
|
}
|
return getDefault(scope, variants, star);
|
}
|
function resolveComplexPattern(scope, ptn) {
|
if (scope.dirty.has(ptn)) {
|
scope.reportError(new RangeError("Cyclic reference"));
|
return new FluentNone();
|
}
|
scope.dirty.add(ptn);
|
const result = [];
|
const useIsolating = scope.bundle._useIsolating && ptn.length > 1;
|
for (const elem of ptn) {
|
if (typeof elem === "string") {
|
result.push(scope.bundle._transform(elem));
|
continue;
|
}
|
scope.placeables++;
|
if (scope.placeables > MAX_PLACEABLES) {
|
scope.dirty.delete(ptn);
|
throw new RangeError(`Too many placeables expanded: ${scope.placeables}, ` + `max allowed is ${MAX_PLACEABLES}`);
|
}
|
if (useIsolating) {
|
result.push(FSI);
|
}
|
result.push(resolveExpression(scope, elem).toString(scope));
|
if (useIsolating) {
|
result.push(PDI);
|
}
|
}
|
scope.dirty.delete(ptn);
|
return result.join("");
|
}
|
function resolvePattern(scope, value) {
|
if (typeof value === "string") {
|
return scope.bundle._transform(value);
|
}
|
return resolveComplexPattern(scope, value);
|
}
|
;// ./node_modules/@fluent/bundle/esm/scope.js
|
class Scope {
|
constructor(bundle, errors, args) {
|
this.dirty = new WeakSet();
|
this.params = null;
|
this.placeables = 0;
|
this.bundle = bundle;
|
this.errors = errors;
|
this.args = args;
|
}
|
reportError(error) {
|
if (!this.errors || !(error instanceof Error)) {
|
throw error;
|
}
|
this.errors.push(error);
|
}
|
memoizeIntlObject(ctor, opts) {
|
let cache = this.bundle._intls.get(ctor);
|
if (!cache) {
|
cache = {};
|
this.bundle._intls.set(ctor, cache);
|
}
|
let id = JSON.stringify(opts);
|
if (!cache[id]) {
|
cache[id] = new ctor(this.bundle.locales, opts);
|
}
|
return cache[id];
|
}
|
}
|
;// ./node_modules/@fluent/bundle/esm/builtins.js
|
|
function values(opts, allowed) {
|
const unwrapped = Object.create(null);
|
for (const [name, opt] of Object.entries(opts)) {
|
if (allowed.includes(name)) {
|
unwrapped[name] = opt.valueOf();
|
}
|
}
|
return unwrapped;
|
}
|
const NUMBER_ALLOWED = ["unitDisplay", "currencyDisplay", "useGrouping", "minimumIntegerDigits", "minimumFractionDigits", "maximumFractionDigits", "minimumSignificantDigits", "maximumSignificantDigits"];
|
function NUMBER(args, opts) {
|
let arg = args[0];
|
if (arg instanceof FluentNone) {
|
return new FluentNone(`NUMBER(${arg.valueOf()})`);
|
}
|
if (arg instanceof FluentNumber) {
|
return new FluentNumber(arg.valueOf(), {
|
...arg.opts,
|
...values(opts, NUMBER_ALLOWED)
|
});
|
}
|
if (arg instanceof FluentDateTime) {
|
return new FluentNumber(arg.toNumber(), {
|
...values(opts, NUMBER_ALLOWED)
|
});
|
}
|
throw new TypeError("Invalid argument to NUMBER");
|
}
|
const DATETIME_ALLOWED = ["dateStyle", "timeStyle", "fractionalSecondDigits", "dayPeriod", "hour12", "weekday", "era", "year", "month", "day", "hour", "minute", "second", "timeZoneName"];
|
function DATETIME(args, opts) {
|
let arg = args[0];
|
if (arg instanceof FluentNone) {
|
return new FluentNone(`DATETIME(${arg.valueOf()})`);
|
}
|
if (arg instanceof FluentDateTime || arg instanceof FluentNumber) {
|
return new FluentDateTime(arg, values(opts, DATETIME_ALLOWED));
|
}
|
throw new TypeError("Invalid argument to DATETIME");
|
}
|
;// ./node_modules/@fluent/bundle/esm/memoizer.js
|
const cache = new Map();
|
function getMemoizerForLocale(locales) {
|
const stringLocale = Array.isArray(locales) ? locales.join(" ") : locales;
|
let memoizer = cache.get(stringLocale);
|
if (memoizer === undefined) {
|
memoizer = new Map();
|
cache.set(stringLocale, memoizer);
|
}
|
return memoizer;
|
}
|
;// ./node_modules/@fluent/bundle/esm/bundle.js
|
|
|
|
|
|
class FluentBundle {
|
constructor(locales, {
|
functions,
|
useIsolating = true,
|
transform = v => v
|
} = {}) {
|
this._terms = new Map();
|
this._messages = new Map();
|
this.locales = Array.isArray(locales) ? locales : [locales];
|
this._functions = {
|
NUMBER: NUMBER,
|
DATETIME: DATETIME,
|
...functions
|
};
|
this._useIsolating = useIsolating;
|
this._transform = transform;
|
this._intls = getMemoizerForLocale(locales);
|
}
|
hasMessage(id) {
|
return this._messages.has(id);
|
}
|
getMessage(id) {
|
return this._messages.get(id);
|
}
|
addResource(res, {
|
allowOverrides = false
|
} = {}) {
|
const errors = [];
|
for (let i = 0; i < res.body.length; i++) {
|
let entry = res.body[i];
|
if (entry.id.startsWith("-")) {
|
if (allowOverrides === false && this._terms.has(entry.id)) {
|
errors.push(new Error(`Attempt to override an existing term: "${entry.id}"`));
|
continue;
|
}
|
this._terms.set(entry.id, entry);
|
} else {
|
if (allowOverrides === false && this._messages.has(entry.id)) {
|
errors.push(new Error(`Attempt to override an existing message: "${entry.id}"`));
|
continue;
|
}
|
this._messages.set(entry.id, entry);
|
}
|
}
|
return errors;
|
}
|
formatPattern(pattern, args = null, errors = null) {
|
if (typeof pattern === "string") {
|
return this._transform(pattern);
|
}
|
let scope = new Scope(this, errors, args);
|
try {
|
let value = resolveComplexPattern(scope, pattern);
|
return value.toString(scope);
|
} catch (err) {
|
if (scope.errors && err instanceof Error) {
|
scope.errors.push(err);
|
return new FluentNone().toString(scope);
|
}
|
throw err;
|
}
|
}
|
}
|
;// ./node_modules/@fluent/bundle/esm/resource.js
|
const RE_MESSAGE_START = /^(-?[a-zA-Z][\w-]*) *= */gm;
|
const RE_ATTRIBUTE_START = /\.([a-zA-Z][\w-]*) *= */y;
|
const RE_VARIANT_START = /\*?\[/y;
|
const RE_NUMBER_LITERAL = /(-?[0-9]+(?:\.([0-9]+))?)/y;
|
const RE_IDENTIFIER = /([a-zA-Z][\w-]*)/y;
|
const RE_REFERENCE = /([$-])?([a-zA-Z][\w-]*)(?:\.([a-zA-Z][\w-]*))?/y;
|
const RE_FUNCTION_NAME = /^[A-Z][A-Z0-9_-]*$/;
|
const RE_TEXT_RUN = /([^{}\n\r]+)/y;
|
const RE_STRING_RUN = /([^\\"\n\r]*)/y;
|
const RE_STRING_ESCAPE = /\\([\\"])/y;
|
const RE_UNICODE_ESCAPE = /\\u([a-fA-F0-9]{4})|\\U([a-fA-F0-9]{6})/y;
|
const RE_LEADING_NEWLINES = /^\n+/;
|
const RE_TRAILING_SPACES = / +$/;
|
const RE_BLANK_LINES = / *\r?\n/g;
|
const RE_INDENT = /( *)$/;
|
const TOKEN_BRACE_OPEN = /{\s*/y;
|
const TOKEN_BRACE_CLOSE = /\s*}/y;
|
const TOKEN_BRACKET_OPEN = /\[\s*/y;
|
const TOKEN_BRACKET_CLOSE = /\s*] */y;
|
const TOKEN_PAREN_OPEN = /\s*\(\s*/y;
|
const TOKEN_ARROW = /\s*->\s*/y;
|
const TOKEN_COLON = /\s*:\s*/y;
|
const TOKEN_COMMA = /\s*,?\s*/y;
|
const TOKEN_BLANK = /\s+/y;
|
class FluentResource {
|
constructor(source) {
|
this.body = [];
|
RE_MESSAGE_START.lastIndex = 0;
|
let cursor = 0;
|
while (true) {
|
let next = RE_MESSAGE_START.exec(source);
|
if (next === null) {
|
break;
|
}
|
cursor = RE_MESSAGE_START.lastIndex;
|
try {
|
this.body.push(parseMessage(next[1]));
|
} catch (err) {
|
if (err instanceof SyntaxError) {
|
continue;
|
}
|
throw err;
|
}
|
}
|
function test(re) {
|
re.lastIndex = cursor;
|
return re.test(source);
|
}
|
function consumeChar(char, errorClass) {
|
if (source[cursor] === char) {
|
cursor++;
|
return true;
|
}
|
if (errorClass) {
|
throw new errorClass(`Expected ${char}`);
|
}
|
return false;
|
}
|
function consumeToken(re, errorClass) {
|
if (test(re)) {
|
cursor = re.lastIndex;
|
return true;
|
}
|
if (errorClass) {
|
throw new errorClass(`Expected ${re.toString()}`);
|
}
|
return false;
|
}
|
function match(re) {
|
re.lastIndex = cursor;
|
let result = re.exec(source);
|
if (result === null) {
|
throw new SyntaxError(`Expected ${re.toString()}`);
|
}
|
cursor = re.lastIndex;
|
return result;
|
}
|
function match1(re) {
|
return match(re)[1];
|
}
|
function parseMessage(id) {
|
let value = parsePattern();
|
let attributes = parseAttributes();
|
if (value === null && Object.keys(attributes).length === 0) {
|
throw new SyntaxError("Expected message value or attributes");
|
}
|
return {
|
id,
|
value,
|
attributes
|
};
|
}
|
function parseAttributes() {
|
let attrs = Object.create(null);
|
while (test(RE_ATTRIBUTE_START)) {
|
let name = match1(RE_ATTRIBUTE_START);
|
let value = parsePattern();
|
if (value === null) {
|
throw new SyntaxError("Expected attribute value");
|
}
|
attrs[name] = value;
|
}
|
return attrs;
|
}
|
function parsePattern() {
|
let first;
|
if (test(RE_TEXT_RUN)) {
|
first = match1(RE_TEXT_RUN);
|
}
|
if (source[cursor] === "{" || source[cursor] === "}") {
|
return parsePatternElements(first ? [first] : [], Infinity);
|
}
|
let indent = parseIndent();
|
if (indent) {
|
if (first) {
|
return parsePatternElements([first, indent], indent.length);
|
}
|
indent.value = trim(indent.value, RE_LEADING_NEWLINES);
|
return parsePatternElements([indent], indent.length);
|
}
|
if (first) {
|
return trim(first, RE_TRAILING_SPACES);
|
}
|
return null;
|
}
|
function parsePatternElements(elements = [], commonIndent) {
|
while (true) {
|
if (test(RE_TEXT_RUN)) {
|
elements.push(match1(RE_TEXT_RUN));
|
continue;
|
}
|
if (source[cursor] === "{") {
|
elements.push(parsePlaceable());
|
continue;
|
}
|
if (source[cursor] === "}") {
|
throw new SyntaxError("Unbalanced closing brace");
|
}
|
let indent = parseIndent();
|
if (indent) {
|
elements.push(indent);
|
commonIndent = Math.min(commonIndent, indent.length);
|
continue;
|
}
|
break;
|
}
|
let lastIndex = elements.length - 1;
|
let lastElement = elements[lastIndex];
|
if (typeof lastElement === "string") {
|
elements[lastIndex] = trim(lastElement, RE_TRAILING_SPACES);
|
}
|
let baked = [];
|
for (let element of elements) {
|
if (element instanceof Indent) {
|
element = element.value.slice(0, element.value.length - commonIndent);
|
}
|
if (element) {
|
baked.push(element);
|
}
|
}
|
return baked;
|
}
|
function parsePlaceable() {
|
consumeToken(TOKEN_BRACE_OPEN, SyntaxError);
|
let selector = parseInlineExpression();
|
if (consumeToken(TOKEN_BRACE_CLOSE)) {
|
return selector;
|
}
|
if (consumeToken(TOKEN_ARROW)) {
|
let variants = parseVariants();
|
consumeToken(TOKEN_BRACE_CLOSE, SyntaxError);
|
return {
|
type: "select",
|
selector,
|
...variants
|
};
|
}
|
throw new SyntaxError("Unclosed placeable");
|
}
|
function parseInlineExpression() {
|
if (source[cursor] === "{") {
|
return parsePlaceable();
|
}
|
if (test(RE_REFERENCE)) {
|
let [, sigil, name, attr = null] = match(RE_REFERENCE);
|
if (sigil === "$") {
|
return {
|
type: "var",
|
name
|
};
|
}
|
if (consumeToken(TOKEN_PAREN_OPEN)) {
|
let args = parseArguments();
|
if (sigil === "-") {
|
return {
|
type: "term",
|
name,
|
attr,
|
args
|
};
|
}
|
if (RE_FUNCTION_NAME.test(name)) {
|
return {
|
type: "func",
|
name,
|
args
|
};
|
}
|
throw new SyntaxError("Function names must be all upper-case");
|
}
|
if (sigil === "-") {
|
return {
|
type: "term",
|
name,
|
attr,
|
args: []
|
};
|
}
|
return {
|
type: "mesg",
|
name,
|
attr
|
};
|
}
|
return parseLiteral();
|
}
|
function parseArguments() {
|
let args = [];
|
while (true) {
|
switch (source[cursor]) {
|
case ")":
|
cursor++;
|
return args;
|
case undefined:
|
throw new SyntaxError("Unclosed argument list");
|
}
|
args.push(parseArgument());
|
consumeToken(TOKEN_COMMA);
|
}
|
}
|
function parseArgument() {
|
let expr = parseInlineExpression();
|
if (expr.type !== "mesg") {
|
return expr;
|
}
|
if (consumeToken(TOKEN_COLON)) {
|
return {
|
type: "narg",
|
name: expr.name,
|
value: parseLiteral()
|
};
|
}
|
return expr;
|
}
|
function parseVariants() {
|
let variants = [];
|
let count = 0;
|
let star;
|
while (test(RE_VARIANT_START)) {
|
if (consumeChar("*")) {
|
star = count;
|
}
|
let key = parseVariantKey();
|
let value = parsePattern();
|
if (value === null) {
|
throw new SyntaxError("Expected variant value");
|
}
|
variants[count++] = {
|
key,
|
value
|
};
|
}
|
if (count === 0) {
|
return null;
|
}
|
if (star === undefined) {
|
throw new SyntaxError("Expected default variant");
|
}
|
return {
|
variants,
|
star
|
};
|
}
|
function parseVariantKey() {
|
consumeToken(TOKEN_BRACKET_OPEN, SyntaxError);
|
let key;
|
if (test(RE_NUMBER_LITERAL)) {
|
key = parseNumberLiteral();
|
} else {
|
key = {
|
type: "str",
|
value: match1(RE_IDENTIFIER)
|
};
|
}
|
consumeToken(TOKEN_BRACKET_CLOSE, SyntaxError);
|
return key;
|
}
|
function parseLiteral() {
|
if (test(RE_NUMBER_LITERAL)) {
|
return parseNumberLiteral();
|
}
|
if (source[cursor] === '"') {
|
return parseStringLiteral();
|
}
|
throw new SyntaxError("Invalid expression");
|
}
|
function parseNumberLiteral() {
|
let [, value, fraction = ""] = match(RE_NUMBER_LITERAL);
|
let precision = fraction.length;
|
return {
|
type: "num",
|
value: parseFloat(value),
|
precision
|
};
|
}
|
function parseStringLiteral() {
|
consumeChar('"', SyntaxError);
|
let value = "";
|
while (true) {
|
value += match1(RE_STRING_RUN);
|
if (source[cursor] === "\\") {
|
value += parseEscapeSequence();
|
continue;
|
}
|
if (consumeChar('"')) {
|
return {
|
type: "str",
|
value
|
};
|
}
|
throw new SyntaxError("Unclosed string literal");
|
}
|
}
|
function parseEscapeSequence() {
|
if (test(RE_STRING_ESCAPE)) {
|
return match1(RE_STRING_ESCAPE);
|
}
|
if (test(RE_UNICODE_ESCAPE)) {
|
let [, codepoint4, codepoint6] = match(RE_UNICODE_ESCAPE);
|
let codepoint = parseInt(codepoint4 || codepoint6, 16);
|
return codepoint <= 0xd7ff || 0xe000 <= codepoint ? String.fromCodePoint(codepoint) : "�";
|
}
|
throw new SyntaxError("Unknown escape sequence");
|
}
|
function parseIndent() {
|
let start = cursor;
|
consumeToken(TOKEN_BLANK);
|
switch (source[cursor]) {
|
case ".":
|
case "[":
|
case "*":
|
case "}":
|
case undefined:
|
return false;
|
case "{":
|
return makeIndent(source.slice(start, cursor));
|
}
|
if (source[cursor - 1] === " ") {
|
return makeIndent(source.slice(start, cursor));
|
}
|
return false;
|
}
|
function trim(text, re) {
|
return text.replace(re, "");
|
}
|
function makeIndent(blank) {
|
let value = blank.replace(RE_BLANK_LINES, "\n");
|
let length = RE_INDENT.exec(blank)[1].length;
|
return new Indent(value, length);
|
}
|
}
|
}
|
class Indent {
|
constructor(value, length) {
|
this.value = value;
|
this.length = length;
|
}
|
}
|
;// ./node_modules/@fluent/bundle/esm/index.js
|
|
|
|
;// ./node_modules/@fluent/dom/esm/overlay.js
|
const reOverlay = /<|&#?\w+;/;
|
const TEXT_LEVEL_ELEMENTS = {
|
"http://www.w3.org/1999/xhtml": ["em", "strong", "small", "s", "cite", "q", "dfn", "abbr", "data", "time", "code", "var", "samp", "kbd", "sub", "sup", "i", "b", "u", "mark", "bdi", "bdo", "span", "br", "wbr"]
|
};
|
const LOCALIZABLE_ATTRIBUTES = {
|
"http://www.w3.org/1999/xhtml": {
|
global: ["title", "aria-description", "aria-label", "aria-valuetext"],
|
a: ["download"],
|
area: ["download", "alt"],
|
input: ["alt", "placeholder"],
|
menuitem: ["label"],
|
menu: ["label"],
|
optgroup: ["label"],
|
option: ["label"],
|
track: ["label"],
|
img: ["alt"],
|
textarea: ["placeholder"],
|
th: ["abbr"]
|
},
|
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul": {
|
global: ["accesskey", "aria-label", "aria-valuetext", "label", "title", "tooltiptext"],
|
description: ["value"],
|
key: ["key", "keycode"],
|
label: ["value"],
|
textbox: ["placeholder", "value"]
|
}
|
};
|
function translateElement(element, translation) {
|
const {
|
value
|
} = translation;
|
if (typeof value === "string") {
|
if (element.localName === "title" && element.namespaceURI === "http://www.w3.org/1999/xhtml") {
|
element.textContent = value;
|
} else if (!reOverlay.test(value)) {
|
element.textContent = value;
|
} else {
|
const templateElement = element.ownerDocument.createElementNS("http://www.w3.org/1999/xhtml", "template");
|
templateElement.innerHTML = value;
|
overlayChildNodes(templateElement.content, element);
|
}
|
}
|
overlayAttributes(translation, element);
|
}
|
function overlayChildNodes(fromFragment, toElement) {
|
for (const childNode of fromFragment.childNodes) {
|
if (childNode.nodeType === childNode.TEXT_NODE) {
|
continue;
|
}
|
if (childNode.hasAttribute("data-l10n-name")) {
|
const sanitized = getNodeForNamedElement(toElement, childNode);
|
fromFragment.replaceChild(sanitized, childNode);
|
continue;
|
}
|
if (isElementAllowed(childNode)) {
|
const sanitized = createSanitizedElement(childNode);
|
fromFragment.replaceChild(sanitized, childNode);
|
continue;
|
}
|
console.warn(`An element of forbidden type "${childNode.localName}" was found in ` + "the translation. Only safe text-level elements and elements with " + "data-l10n-name are allowed.");
|
fromFragment.replaceChild(createTextNodeFromTextContent(childNode), childNode);
|
}
|
toElement.textContent = "";
|
toElement.appendChild(fromFragment);
|
}
|
function hasAttribute(attributes, name) {
|
if (!attributes) {
|
return false;
|
}
|
for (let attr of attributes) {
|
if (attr.name === name) {
|
return true;
|
}
|
}
|
return false;
|
}
|
function overlayAttributes(fromElement, toElement) {
|
const explicitlyAllowed = toElement.hasAttribute("data-l10n-attrs") ? toElement.getAttribute("data-l10n-attrs").split(",").map(i => i.trim()) : null;
|
for (const attr of Array.from(toElement.attributes)) {
|
if (isAttrNameLocalizable(attr.name, toElement, explicitlyAllowed) && !hasAttribute(fromElement.attributes, attr.name)) {
|
toElement.removeAttribute(attr.name);
|
}
|
}
|
if (!fromElement.attributes) {
|
return;
|
}
|
for (const attr of Array.from(fromElement.attributes)) {
|
if (isAttrNameLocalizable(attr.name, toElement, explicitlyAllowed) && toElement.getAttribute(attr.name) !== attr.value) {
|
toElement.setAttribute(attr.name, attr.value);
|
}
|
}
|
}
|
function getNodeForNamedElement(sourceElement, translatedChild) {
|
const childName = translatedChild.getAttribute("data-l10n-name");
|
const sourceChild = sourceElement.querySelector(`[data-l10n-name="${childName}"]`);
|
if (!sourceChild) {
|
console.warn(`An element named "${childName}" wasn't found in the source.`);
|
return createTextNodeFromTextContent(translatedChild);
|
}
|
if (sourceChild.localName !== translatedChild.localName) {
|
console.warn(`An element named "${childName}" was found in the translation ` + `but its type ${translatedChild.localName} didn't match the ` + `element found in the source (${sourceChild.localName}).`);
|
return createTextNodeFromTextContent(translatedChild);
|
}
|
sourceElement.removeChild(sourceChild);
|
const clone = sourceChild.cloneNode(false);
|
return shallowPopulateUsing(translatedChild, clone);
|
}
|
function createSanitizedElement(element) {
|
const clone = element.ownerDocument.createElement(element.localName);
|
return shallowPopulateUsing(element, clone);
|
}
|
function createTextNodeFromTextContent(element) {
|
return element.ownerDocument.createTextNode(element.textContent);
|
}
|
function isElementAllowed(element) {
|
const allowed = TEXT_LEVEL_ELEMENTS[element.namespaceURI];
|
return allowed && allowed.includes(element.localName);
|
}
|
function isAttrNameLocalizable(name, element, explicitlyAllowed = null) {
|
if (explicitlyAllowed && explicitlyAllowed.includes(name)) {
|
return true;
|
}
|
const allowed = LOCALIZABLE_ATTRIBUTES[element.namespaceURI];
|
if (!allowed) {
|
return false;
|
}
|
const attrName = name.toLowerCase();
|
const elemName = element.localName;
|
if (allowed.global.includes(attrName)) {
|
return true;
|
}
|
if (!allowed[elemName]) {
|
return false;
|
}
|
if (allowed[elemName].includes(attrName)) {
|
return true;
|
}
|
if (element.namespaceURI === "http://www.w3.org/1999/xhtml" && elemName === "input" && attrName === "value") {
|
const type = element.type.toLowerCase();
|
if (type === "submit" || type === "button" || type === "reset") {
|
return true;
|
}
|
}
|
return false;
|
}
|
function shallowPopulateUsing(fromElement, toElement) {
|
toElement.textContent = fromElement.textContent;
|
overlayAttributes(fromElement, toElement);
|
return toElement;
|
}
|
;// ./node_modules/cached-iterable/src/cached_iterable.mjs
|
class CachedIterable extends Array {
|
static from(iterable) {
|
if (iterable instanceof this) {
|
return iterable;
|
}
|
return new this(iterable);
|
}
|
}
|
;// ./node_modules/cached-iterable/src/cached_sync_iterable.mjs
|
|
class CachedSyncIterable extends CachedIterable {
|
constructor(iterable) {
|
super();
|
if (Symbol.iterator in Object(iterable)) {
|
this.iterator = iterable[Symbol.iterator]();
|
} else {
|
throw new TypeError("Argument must implement the iteration protocol.");
|
}
|
}
|
[Symbol.iterator]() {
|
const cached = this;
|
let cur = 0;
|
return {
|
next() {
|
if (cached.length <= cur) {
|
cached.push(cached.iterator.next());
|
}
|
return cached[cur++];
|
}
|
};
|
}
|
touchNext(count = 1) {
|
let idx = 0;
|
while (idx++ < count) {
|
const last = this[this.length - 1];
|
if (last && last.done) {
|
break;
|
}
|
this.push(this.iterator.next());
|
}
|
return this[this.length - 1];
|
}
|
}
|
;// ./node_modules/cached-iterable/src/cached_async_iterable.mjs
|
|
class CachedAsyncIterable extends CachedIterable {
|
constructor(iterable) {
|
super();
|
if (Symbol.asyncIterator in Object(iterable)) {
|
this.iterator = iterable[Symbol.asyncIterator]();
|
} else if (Symbol.iterator in Object(iterable)) {
|
this.iterator = iterable[Symbol.iterator]();
|
} else {
|
throw new TypeError("Argument must implement the iteration protocol.");
|
}
|
}
|
[Symbol.asyncIterator]() {
|
const cached = this;
|
let cur = 0;
|
return {
|
async next() {
|
if (cached.length <= cur) {
|
cached.push(cached.iterator.next());
|
}
|
return cached[cur++];
|
}
|
};
|
}
|
async touchNext(count = 1) {
|
let idx = 0;
|
while (idx++ < count) {
|
const last = this[this.length - 1];
|
if (last && (await last).done) {
|
break;
|
}
|
this.push(this.iterator.next());
|
}
|
return this[this.length - 1];
|
}
|
}
|
;// ./node_modules/cached-iterable/src/index.mjs
|
|
|
;// ./node_modules/@fluent/dom/esm/localization.js
|
|
class Localization {
|
constructor(resourceIds = [], generateBundles) {
|
this.resourceIds = resourceIds;
|
this.generateBundles = generateBundles;
|
this.onChange(true);
|
}
|
addResourceIds(resourceIds, eager = false) {
|
this.resourceIds.push(...resourceIds);
|
this.onChange(eager);
|
return this.resourceIds.length;
|
}
|
removeResourceIds(resourceIds) {
|
this.resourceIds = this.resourceIds.filter(r => !resourceIds.includes(r));
|
this.onChange();
|
return this.resourceIds.length;
|
}
|
async formatWithFallback(keys, method) {
|
const translations = [];
|
let hasAtLeastOneBundle = false;
|
for await (const bundle of this.bundles) {
|
hasAtLeastOneBundle = true;
|
const missingIds = keysFromBundle(method, bundle, keys, translations);
|
if (missingIds.size === 0) {
|
break;
|
}
|
if (typeof console !== "undefined") {
|
const locale = bundle.locales[0];
|
const ids = Array.from(missingIds).join(", ");
|
console.warn(`[fluent] Missing translations in ${locale}: ${ids}`);
|
}
|
}
|
if (!hasAtLeastOneBundle && typeof console !== "undefined") {
|
console.warn(`[fluent] Request for keys failed because no resource bundles got generated.
|
keys: ${JSON.stringify(keys)}.
|
resourceIds: ${JSON.stringify(this.resourceIds)}.`);
|
}
|
return translations;
|
}
|
formatMessages(keys) {
|
return this.formatWithFallback(keys, messageFromBundle);
|
}
|
formatValues(keys) {
|
return this.formatWithFallback(keys, valueFromBundle);
|
}
|
async formatValue(id, args) {
|
const [val] = await this.formatValues([{
|
id,
|
args
|
}]);
|
return val;
|
}
|
handleEvent() {
|
this.onChange();
|
}
|
onChange(eager = false) {
|
this.bundles = CachedAsyncIterable.from(this.generateBundles(this.resourceIds));
|
if (eager) {
|
this.bundles.touchNext(2);
|
}
|
}
|
}
|
function valueFromBundle(bundle, errors, message, args) {
|
if (message.value) {
|
return bundle.formatPattern(message.value, args, errors);
|
}
|
return null;
|
}
|
function messageFromBundle(bundle, errors, message, args) {
|
const formatted = {
|
value: null,
|
attributes: null
|
};
|
if (message.value) {
|
formatted.value = bundle.formatPattern(message.value, args, errors);
|
}
|
let attrNames = Object.keys(message.attributes);
|
if (attrNames.length > 0) {
|
formatted.attributes = new Array(attrNames.length);
|
for (let [i, name] of attrNames.entries()) {
|
let value = bundle.formatPattern(message.attributes[name], args, errors);
|
formatted.attributes[i] = {
|
name,
|
value
|
};
|
}
|
}
|
return formatted;
|
}
|
function keysFromBundle(method, bundle, keys, translations) {
|
const messageErrors = [];
|
const missingIds = new Set();
|
keys.forEach(({
|
id,
|
args
|
}, i) => {
|
if (translations[i] !== undefined) {
|
return;
|
}
|
let message = bundle.getMessage(id);
|
if (message) {
|
messageErrors.length = 0;
|
translations[i] = method(bundle, messageErrors, message, args);
|
if (messageErrors.length > 0 && typeof console !== "undefined") {
|
const locale = bundle.locales[0];
|
const errors = messageErrors.join(", ");
|
console.warn(`[fluent][resolver] errors in ${locale}/${id}: ${errors}.`);
|
}
|
} else {
|
missingIds.add(id);
|
}
|
});
|
return missingIds;
|
}
|
;// ./node_modules/@fluent/dom/esm/dom_localization.js
|
|
|
const L10NID_ATTR_NAME = "data-l10n-id";
|
const L10NARGS_ATTR_NAME = "data-l10n-args";
|
const L10N_ELEMENT_QUERY = `[${L10NID_ATTR_NAME}]`;
|
class DOMLocalization extends Localization {
|
constructor(resourceIds, generateBundles) {
|
super(resourceIds, generateBundles);
|
this.roots = new Set();
|
this.pendingrAF = null;
|
this.pendingElements = new Set();
|
this.windowElement = null;
|
this.mutationObserver = null;
|
this.observerConfig = {
|
attributes: true,
|
characterData: false,
|
childList: true,
|
subtree: true,
|
attributeFilter: [L10NID_ATTR_NAME, L10NARGS_ATTR_NAME]
|
};
|
}
|
onChange(eager = false) {
|
super.onChange(eager);
|
if (this.roots) {
|
this.translateRoots();
|
}
|
}
|
setAttributes(element, id, args) {
|
element.setAttribute(L10NID_ATTR_NAME, id);
|
if (args) {
|
element.setAttribute(L10NARGS_ATTR_NAME, JSON.stringify(args));
|
} else {
|
element.removeAttribute(L10NARGS_ATTR_NAME);
|
}
|
return element;
|
}
|
getAttributes(element) {
|
return {
|
id: element.getAttribute(L10NID_ATTR_NAME),
|
args: JSON.parse(element.getAttribute(L10NARGS_ATTR_NAME) || null)
|
};
|
}
|
connectRoot(newRoot) {
|
for (const root of this.roots) {
|
if (root === newRoot || root.contains(newRoot) || newRoot.contains(root)) {
|
throw new Error("Cannot add a root that overlaps with existing root.");
|
}
|
}
|
if (this.windowElement) {
|
if (this.windowElement !== newRoot.ownerDocument.defaultView) {
|
throw new Error(`Cannot connect a root:
|
DOMLocalization already has a root from a different window.`);
|
}
|
} else {
|
this.windowElement = newRoot.ownerDocument.defaultView;
|
this.mutationObserver = new this.windowElement.MutationObserver(mutations => this.translateMutations(mutations));
|
}
|
this.roots.add(newRoot);
|
this.mutationObserver.observe(newRoot, this.observerConfig);
|
}
|
disconnectRoot(root) {
|
this.roots.delete(root);
|
this.pauseObserving();
|
if (this.roots.size === 0) {
|
this.mutationObserver = null;
|
if (this.windowElement && this.pendingrAF) {
|
this.windowElement.cancelAnimationFrame(this.pendingrAF);
|
}
|
this.windowElement = null;
|
this.pendingrAF = null;
|
this.pendingElements.clear();
|
return true;
|
}
|
this.resumeObserving();
|
return false;
|
}
|
translateRoots() {
|
const roots = Array.from(this.roots);
|
return Promise.all(roots.map(root => this.translateFragment(root)));
|
}
|
pauseObserving() {
|
if (!this.mutationObserver) {
|
return;
|
}
|
this.translateMutations(this.mutationObserver.takeRecords());
|
this.mutationObserver.disconnect();
|
}
|
resumeObserving() {
|
if (!this.mutationObserver) {
|
return;
|
}
|
for (const root of this.roots) {
|
this.mutationObserver.observe(root, this.observerConfig);
|
}
|
}
|
translateMutations(mutations) {
|
for (const mutation of mutations) {
|
switch (mutation.type) {
|
case "attributes":
|
if (mutation.target.hasAttribute("data-l10n-id")) {
|
this.pendingElements.add(mutation.target);
|
}
|
break;
|
case "childList":
|
for (const addedNode of mutation.addedNodes) {
|
if (addedNode.nodeType === addedNode.ELEMENT_NODE) {
|
if (addedNode.childElementCount) {
|
for (const element of this.getTranslatables(addedNode)) {
|
this.pendingElements.add(element);
|
}
|
} else if (addedNode.hasAttribute(L10NID_ATTR_NAME)) {
|
this.pendingElements.add(addedNode);
|
}
|
}
|
}
|
break;
|
}
|
}
|
if (this.pendingElements.size > 0) {
|
if (this.pendingrAF === null) {
|
this.pendingrAF = this.windowElement.requestAnimationFrame(() => {
|
this.translateElements(Array.from(this.pendingElements));
|
this.pendingElements.clear();
|
this.pendingrAF = null;
|
});
|
}
|
}
|
}
|
translateFragment(frag) {
|
return this.translateElements(this.getTranslatables(frag));
|
}
|
async translateElements(elements) {
|
if (!elements.length) {
|
return undefined;
|
}
|
const keys = elements.map(this.getKeysForElement);
|
const translations = await this.formatMessages(keys);
|
return this.applyTranslations(elements, translations);
|
}
|
applyTranslations(elements, translations) {
|
this.pauseObserving();
|
for (let i = 0; i < elements.length; i++) {
|
if (translations[i] !== undefined) {
|
translateElement(elements[i], translations[i]);
|
}
|
}
|
this.resumeObserving();
|
}
|
getTranslatables(element) {
|
const nodes = Array.from(element.querySelectorAll(L10N_ELEMENT_QUERY));
|
if (typeof element.hasAttribute === "function" && element.hasAttribute(L10NID_ATTR_NAME)) {
|
nodes.push(element);
|
}
|
return nodes;
|
}
|
getKeysForElement(element) {
|
return {
|
id: element.getAttribute(L10NID_ATTR_NAME),
|
args: JSON.parse(element.getAttribute(L10NARGS_ATTR_NAME) || null)
|
};
|
}
|
}
|
;// ./node_modules/@fluent/dom/esm/index.js
|
|
|
;// ./web/l10n.js
|
class L10n {
|
#dir;
|
#elements;
|
#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) {
|
(this.#elements ||= new Set()).add(element);
|
try {
|
this.#l10n.connectRoot(element);
|
await this.#l10n.translateRoots();
|
} catch {}
|
}
|
async translateOnce(element) {
|
try {
|
await this.#l10n.translateElements([element]);
|
} catch (ex) {
|
console.error("translateOnce:", ex);
|
}
|
}
|
async destroy() {
|
if (this.#elements) {
|
for (const element of this.#elements) {
|
this.#l10n.disconnectRoot(element);
|
}
|
this.#elements.clear();
|
this.#elements = null;
|
}
|
this.#l10n.pauseObserving();
|
}
|
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;
|
|
;// ./web/genericl10n.js
|
|
|
|
|
function PLATFORM() {
|
const {
|
isAndroid,
|
isLinux,
|
isMac,
|
isWindows
|
} = FeatureTest.platform;
|
if (isLinux) {
|
return "linux";
|
}
|
if (isWindows) {
|
return "windows";
|
}
|
if (isMac) {
|
return "macos";
|
}
|
if (isAndroid) {
|
return "android";
|
}
|
return "other";
|
}
|
function createBundle(lang, text) {
|
const resource = new FluentResource(text);
|
const bundle = new FluentBundle(lang, {
|
functions: {
|
PLATFORM
|
}
|
});
|
const errors = bundle.addResource(resource);
|
if (errors.length) {
|
console.error("L10n errors", errors);
|
}
|
return bundle;
|
}
|
class genericl10n_GenericL10n extends L10n {
|
constructor(lang) {
|
super({
|
lang
|
});
|
const generateBundles = !lang ? genericl10n_GenericL10n.#generateBundlesFallback.bind(genericl10n_GenericL10n, this.getLanguage()) : genericl10n_GenericL10n.#generateBundles.bind(genericl10n_GenericL10n, "en-us", this.getLanguage());
|
this._setL10n(new DOMLocalization([], generateBundles));
|
}
|
static async *#generateBundles(defaultLang, baseLang) {
|
const {
|
baseURL,
|
paths
|
} = await this.#getPaths();
|
const langs = [baseLang];
|
if (defaultLang !== baseLang) {
|
const shortLang = baseLang.split("-", 1)[0];
|
if (shortLang !== baseLang) {
|
langs.push(shortLang);
|
}
|
langs.push(defaultLang);
|
}
|
const bundles = langs.map(lang => [lang, this.#createBundle(lang, baseURL, paths)]);
|
for (const [lang, bundlePromise] of bundles) {
|
const bundle = await bundlePromise;
|
if (bundle) {
|
yield bundle;
|
} else if (lang === "en-us") {
|
yield this.#createBundleFallback(lang);
|
}
|
}
|
}
|
static async #createBundle(lang, baseURL, paths) {
|
const path = paths[lang];
|
if (!path) {
|
return null;
|
}
|
const url = new URL(path, baseURL);
|
const text = await fetchData(url, "text");
|
return createBundle(lang, text);
|
}
|
static async #getPaths() {
|
try {
|
const {
|
href
|
} = document.querySelector(`link[type="application/l10n"]`);
|
const paths = await fetchData(href, "json");
|
return {
|
baseURL: href.substring(0, href.lastIndexOf("/") + 1) || "./",
|
paths
|
};
|
} catch {}
|
return {
|
baseURL: "./",
|
paths: Object.create(null)
|
};
|
}
|
static async *#generateBundlesFallback(lang) {
|
yield this.#createBundleFallback(lang);
|
}
|
static async #createBundleFallback(lang) {
|
const text = "pdfjs-previous-button =\n .title = Previous Page\npdfjs-previous-button-label = Previous\npdfjs-next-button =\n .title = Next Page\npdfjs-next-button-label = Next\npdfjs-page-input =\n .title = Page\npdfjs-of-pages = of { $pagesCount }\npdfjs-page-of-pages = ({ $pageNumber } of { $pagesCount })\npdfjs-zoom-out-button =\n .title = Zoom Out\npdfjs-zoom-out-button-label = Zoom Out\npdfjs-zoom-in-button =\n .title = Zoom In\npdfjs-zoom-in-button-label = Zoom In\npdfjs-zoom-select =\n .title = Zoom\npdfjs-presentation-mode-button =\n .title = Switch to Presentation Mode\npdfjs-presentation-mode-button-label = Presentation Mode\npdfjs-open-file-button =\n .title = Open File\npdfjs-open-file-button-label = Open\npdfjs-print-button =\n .title = Print\npdfjs-print-button-label = Print\npdfjs-save-button =\n .title = Save\npdfjs-save-button-label = Save\npdfjs-download-button =\n .title = Download\npdfjs-download-button-label = Download\npdfjs-bookmark-button =\n .title = Current Page (View URL from Current Page)\npdfjs-bookmark-button-label = Current Page\npdfjs-tools-button =\n .title = Tools\npdfjs-tools-button-label = Tools\npdfjs-first-page-button =\n .title = Go to First Page\npdfjs-first-page-button-label = Go to First Page\npdfjs-last-page-button =\n .title = Go to Last Page\npdfjs-last-page-button-label = Go to Last Page\npdfjs-page-rotate-cw-button =\n .title = Rotate Clockwise\npdfjs-page-rotate-cw-button-label = Rotate Clockwise\npdfjs-page-rotate-ccw-button =\n .title = Rotate Counterclockwise\npdfjs-page-rotate-ccw-button-label = Rotate Counterclockwise\npdfjs-cursor-text-select-tool-button =\n .title = Enable Text Selection Tool\npdfjs-cursor-text-select-tool-button-label = Text Selection Tool\npdfjs-cursor-hand-tool-button =\n .title = Enable Hand Tool\npdfjs-cursor-hand-tool-button-label = Hand Tool\npdfjs-scroll-page-button =\n .title = Use Page Scrolling\npdfjs-scroll-page-button-label = Page Scrolling\npdfjs-scroll-vertical-button =\n .title = Use Vertical Scrolling\npdfjs-scroll-vertical-button-label = Vertical Scrolling\npdfjs-scroll-horizontal-button =\n .title = Use Horizontal Scrolling\npdfjs-scroll-horizontal-button-label = Horizontal Scrolling\npdfjs-scroll-wrapped-button =\n .title = Use Wrapped Scrolling\npdfjs-scroll-wrapped-button-label = Wrapped Scrolling\npdfjs-spread-none-button =\n .title = Do not join page spreads\npdfjs-spread-none-button-label = No Spreads\npdfjs-spread-odd-button =\n .title = Join page spreads starting with odd-numbered pages\npdfjs-spread-odd-button-label = Odd Spreads\npdfjs-spread-even-button =\n .title = Join page spreads starting with even-numbered pages\npdfjs-spread-even-button-label = Even Spreads\npdfjs-document-properties-button =\n .title = Document Properties\u2026\npdfjs-document-properties-button-label = Document Properties\u2026\npdfjs-document-properties-file-name = File name:\npdfjs-document-properties-file-size = File size:\npdfjs-document-properties-size-kb = { NUMBER($kb, maximumSignificantDigits: 3) } KB ({ $b } bytes)\npdfjs-document-properties-size-mb = { NUMBER($mb, maximumSignificantDigits: 3) } MB ({ $b } bytes)\npdfjs-document-properties-title = Title:\npdfjs-document-properties-author = Author:\npdfjs-document-properties-subject = Subject:\npdfjs-document-properties-keywords = Keywords:\npdfjs-document-properties-creation-date = Creation Date:\npdfjs-document-properties-modification-date = Modification Date:\npdfjs-document-properties-date-time-string = { DATETIME($dateObj, dateStyle: \"short\", timeStyle: \"medium\") }\npdfjs-document-properties-creator = Creator:\npdfjs-document-properties-producer = PDF Producer:\npdfjs-document-properties-version = PDF Version:\npdfjs-document-properties-page-count = Page Count:\npdfjs-document-properties-page-size = Page Size:\npdfjs-document-properties-page-size-unit-inches = in\npdfjs-document-properties-page-size-unit-millimeters = mm\npdfjs-document-properties-page-size-orientation-portrait = portrait\npdfjs-document-properties-page-size-orientation-landscape = landscape\npdfjs-document-properties-page-size-name-a-three = A3\npdfjs-document-properties-page-size-name-a-four = A4\npdfjs-document-properties-page-size-name-letter = Letter\npdfjs-document-properties-page-size-name-legal = Legal\npdfjs-document-properties-page-size-dimension-string = { $width } \xD7 { $height } { $unit } ({ $orientation })\npdfjs-document-properties-page-size-dimension-name-string = { $width } \xD7 { $height } { $unit } ({ $name }, { $orientation })\npdfjs-document-properties-linearized = Fast Web View:\npdfjs-document-properties-linearized-yes = Yes\npdfjs-document-properties-linearized-no = No\npdfjs-document-properties-close-button = Close\npdfjs-print-progress-message = Preparing document for printing\u2026\npdfjs-print-progress-percent = { $progress }%\npdfjs-print-progress-close-button = Cancel\npdfjs-printing-not-supported = Warning: Printing is not fully supported by this browser.\npdfjs-printing-not-ready = Warning: The PDF is not fully loaded for printing.\npdfjs-toggle-sidebar-button =\n .title = Toggle Sidebar\npdfjs-toggle-sidebar-notification-button =\n .title = Toggle Sidebar (document contains outline/attachments/layers)\npdfjs-toggle-sidebar-button-label = Toggle Sidebar\npdfjs-document-outline-button =\n .title = Show Document Outline (double-click to expand/collapse all items)\npdfjs-document-outline-button-label = Document Outline\npdfjs-attachments-button =\n .title = Show Attachments\npdfjs-attachments-button-label = Attachments\npdfjs-layers-button =\n .title = Show Layers (double-click to reset all layers to the default state)\npdfjs-layers-button-label = Layers\npdfjs-thumbs-button =\n .title = Show Thumbnails\npdfjs-thumbs-button-label = Thumbnails\npdfjs-current-outline-item-button =\n .title = Find Current Outline Item\npdfjs-current-outline-item-button-label = Current Outline Item\npdfjs-findbar-button =\n .title = Find in Document\npdfjs-findbar-button-label = Find\npdfjs-additional-layers = Additional Layers\npdfjs-thumb-page-title =\n .title = Page { $page }\npdfjs-thumb-page-canvas =\n .aria-label = Thumbnail of Page { $page }\npdfjs-find-input =\n .title = Find\n .placeholder = Find in document\u2026\npdfjs-find-previous-button =\n .title = Find the previous occurrence of the phrase\npdfjs-find-previous-button-label = Previous\npdfjs-find-next-button =\n .title = Find the next occurrence of the phrase\npdfjs-find-next-button-label = Next\npdfjs-find-highlight-checkbox = Highlight All\npdfjs-find-match-case-checkbox-label = Match Case\npdfjs-find-match-diacritics-checkbox-label = Match Diacritics\npdfjs-find-entire-word-checkbox-label = Whole Words\npdfjs-find-reached-top = Reached top of document, continued from bottom\npdfjs-find-reached-bottom = Reached end of document, continued from top\npdfjs-find-match-count =\n { $total ->\n [one] { $current } of { $total } match\n *[other] { $current } of { $total } matches\n }\npdfjs-find-match-count-limit =\n { $limit ->\n [one] More than { $limit } match\n *[other] More than { $limit } matches\n }\npdfjs-find-not-found = Phrase not found\npdfjs-page-scale-width = Page Width\npdfjs-page-scale-fit = Page Fit\npdfjs-page-scale-auto = Automatic Zoom\npdfjs-page-scale-actual = Actual Size\npdfjs-page-scale-percent = { $scale }%\npdfjs-page-landmark =\n .aria-label = Page { $page }\npdfjs-loading-error = An error occurred while loading the PDF.\npdfjs-invalid-file-error = Invalid or corrupted PDF file.\npdfjs-missing-file-error = Missing PDF file.\npdfjs-unexpected-response-error = Unexpected server response.\npdfjs-rendering-error = An error occurred while rendering the page.\npdfjs-annotation-date-time-string = { DATETIME($dateObj, dateStyle: \"short\", timeStyle: \"medium\") }\npdfjs-text-annotation-type =\n .alt = [{ $type } Annotation]\npdfjs-password-label = Enter the password to open this PDF file.\npdfjs-password-invalid = Invalid password. Please try again.\npdfjs-password-ok-button = OK\npdfjs-password-cancel-button = Cancel\npdfjs-web-fonts-disabled = Web fonts are disabled: unable to use embedded PDF fonts.\npdfjs-editor-free-text-button =\n .title = Text\npdfjs-editor-free-text-button-label = Text\npdfjs-editor-ink-button =\n .title = Draw\npdfjs-editor-ink-button-label = Draw\npdfjs-editor-stamp-button =\n .title = Add or edit images\npdfjs-editor-stamp-button-label = Add or edit images\npdfjs-editor-highlight-button =\n .title = Highlight\npdfjs-editor-highlight-button-label = Highlight\npdfjs-highlight-floating-button1 =\n .title = Highlight\n .aria-label = Highlight\npdfjs-highlight-floating-button-label = Highlight\npdfjs-editor-signature-button =\n .title = Add signature\npdfjs-editor-signature-button-label = Add signature\npdfjs-editor-highlight-editor =\n .aria-label = Highlight editor\npdfjs-editor-ink-editor =\n .aria-label = Drawing editor\npdfjs-editor-signature-editor1 =\n .aria-description = Signature editor: { $description }\npdfjs-editor-stamp-editor =\n .aria-label = Image editor\npdfjs-editor-remove-ink-button =\n .title = Remove drawing\npdfjs-editor-remove-freetext-button =\n .title = Remove text\npdfjs-editor-remove-stamp-button =\n .title = Remove image\npdfjs-editor-remove-highlight-button =\n .title = Remove highlight\npdfjs-editor-remove-signature-button =\n .title = Remove signature\npdfjs-editor-free-text-color-input = Color\npdfjs-editor-free-text-size-input = Size\npdfjs-editor-ink-color-input = Color\npdfjs-editor-ink-thickness-input = Thickness\npdfjs-editor-ink-opacity-input = Opacity\npdfjs-editor-stamp-add-image-button =\n .title = Add image\npdfjs-editor-stamp-add-image-button-label = Add image\npdfjs-editor-free-highlight-thickness-input = Thickness\npdfjs-editor-free-highlight-thickness-title =\n .title = Change thickness when highlighting items other than text\npdfjs-editor-add-signature-container =\n .aria-label = Signature controls and saved signatures\npdfjs-editor-signature-add-signature-button =\n .title = Add new signature\npdfjs-editor-signature-add-signature-button-label = Add new signature\npdfjs-editor-add-saved-signature-button =\n .title = Saved signature: { $description }\npdfjs-free-text2 =\n .aria-label = Text Editor\n .default-content = Start typing\u2026\npdfjs-editor-alt-text-button =\n .aria-label = Alt text\npdfjs-editor-alt-text-button-label = Alt text\npdfjs-editor-alt-text-edit-button =\n .aria-label = Edit alt text\npdfjs-editor-alt-text-dialog-label = Choose an option\npdfjs-editor-alt-text-dialog-description = Alt text (alternative text) helps when people can\u2019t see the image or when it doesn\u2019t load.\npdfjs-editor-alt-text-add-description-label = Add a description\npdfjs-editor-alt-text-add-description-description = Aim for 1-2 sentences that describe the subject, setting, or actions.\npdfjs-editor-alt-text-mark-decorative-label = Mark as decorative\npdfjs-editor-alt-text-mark-decorative-description = This is used for ornamental images, like borders or watermarks.\npdfjs-editor-alt-text-cancel-button = Cancel\npdfjs-editor-alt-text-save-button = Save\npdfjs-editor-alt-text-decorative-tooltip = Marked as decorative\npdfjs-editor-alt-text-textarea =\n .placeholder = For example, \u201CA young man sits down at a table to eat a meal\u201D\npdfjs-editor-resizer-top-left =\n .aria-label = Top left corner \u2014 resize\npdfjs-editor-resizer-top-middle =\n .aria-label = Top middle \u2014 resize\npdfjs-editor-resizer-top-right =\n .aria-label = Top right corner \u2014 resize\npdfjs-editor-resizer-middle-right =\n .aria-label = Middle right \u2014 resize\npdfjs-editor-resizer-bottom-right =\n .aria-label = Bottom right corner \u2014 resize\npdfjs-editor-resizer-bottom-middle =\n .aria-label = Bottom middle \u2014 resize\npdfjs-editor-resizer-bottom-left =\n .aria-label = Bottom left corner \u2014 resize\npdfjs-editor-resizer-middle-left =\n .aria-label = Middle left \u2014 resize\npdfjs-editor-highlight-colorpicker-label = Highlight color\npdfjs-editor-colorpicker-button =\n .title = Change color\npdfjs-editor-colorpicker-dropdown =\n .aria-label = Color choices\npdfjs-editor-colorpicker-yellow =\n .title = Yellow\npdfjs-editor-colorpicker-green =\n .title = Green\npdfjs-editor-colorpicker-blue =\n .title = Blue\npdfjs-editor-colorpicker-pink =\n .title = Pink\npdfjs-editor-colorpicker-red =\n .title = Red\npdfjs-editor-highlight-show-all-button-label = Show all\npdfjs-editor-highlight-show-all-button =\n .title = Show all\npdfjs-editor-new-alt-text-dialog-edit-label = Edit alt text (image description)\npdfjs-editor-new-alt-text-dialog-add-label = Add alt text (image description)\npdfjs-editor-new-alt-text-textarea =\n .placeholder = Write your description here\u2026\npdfjs-editor-new-alt-text-description = Short description for people who can\u2019t see the image or when the image doesn\u2019t load.\npdfjs-editor-new-alt-text-disclaimer1 = This alt text was created automatically and may be inaccurate.\npdfjs-editor-new-alt-text-disclaimer-learn-more-url = Learn more\npdfjs-editor-new-alt-text-create-automatically-button-label = Create alt text automatically\npdfjs-editor-new-alt-text-not-now-button = Not now\npdfjs-editor-new-alt-text-error-title = Couldn\u2019t create alt text automatically\npdfjs-editor-new-alt-text-error-description = Please write your own alt text or try again later.\npdfjs-editor-new-alt-text-error-close-button = Close\npdfjs-editor-new-alt-text-ai-model-downloading-progress = Downloading alt text AI model ({ $downloadedSize } of { $totalSize } MB)\n .aria-valuetext = Downloading alt text AI model ({ $downloadedSize } of { $totalSize } MB)\npdfjs-editor-new-alt-text-added-button =\n .aria-label = Alt text added\npdfjs-editor-new-alt-text-added-button-label = Alt text added\npdfjs-editor-new-alt-text-missing-button =\n .aria-label = Missing alt text\npdfjs-editor-new-alt-text-missing-button-label = Missing alt text\npdfjs-editor-new-alt-text-to-review-button =\n .aria-label = Review alt text\npdfjs-editor-new-alt-text-to-review-button-label = Review alt text\npdfjs-editor-new-alt-text-generated-alt-text-with-disclaimer = Created automatically: { $generatedAltText }\npdfjs-image-alt-text-settings-button =\n .title = Image alt text settings\npdfjs-image-alt-text-settings-button-label = Image alt text settings\npdfjs-editor-alt-text-settings-dialog-label = Image alt text settings\npdfjs-editor-alt-text-settings-automatic-title = Automatic alt text\npdfjs-editor-alt-text-settings-create-model-button-label = Create alt text automatically\npdfjs-editor-alt-text-settings-create-model-description = Suggests descriptions to help people who can\u2019t see the image or when the image doesn\u2019t load.\npdfjs-editor-alt-text-settings-download-model-label = Alt text AI model ({ $totalSize } MB)\npdfjs-editor-alt-text-settings-ai-model-description = Runs locally on your device so your data stays private. Required for automatic alt text.\npdfjs-editor-alt-text-settings-delete-model-button = Delete\npdfjs-editor-alt-text-settings-download-model-button = Download\npdfjs-editor-alt-text-settings-downloading-model-button = Downloading\u2026\npdfjs-editor-alt-text-settings-editor-title = Alt text editor\npdfjs-editor-alt-text-settings-show-dialog-button-label = Show alt text editor right away when adding an image\npdfjs-editor-alt-text-settings-show-dialog-description = Helps you make sure all your images have alt text.\npdfjs-editor-alt-text-settings-close-button = Close\npdfjs-editor-undo-bar-message-highlight = Highlight removed\npdfjs-editor-undo-bar-message-freetext = Text removed\npdfjs-editor-undo-bar-message-ink = Drawing removed\npdfjs-editor-undo-bar-message-stamp = Image removed\npdfjs-editor-undo-bar-message-signature = Signature removed\npdfjs-editor-undo-bar-message-multiple =\n { $count ->\n [one] { $count } annotation removed\n *[other] { $count } annotations removed\n }\npdfjs-editor-undo-bar-undo-button =\n .title = Undo\npdfjs-editor-undo-bar-undo-button-label = Undo\npdfjs-editor-undo-bar-close-button =\n .title = Close\npdfjs-editor-undo-bar-close-button-label = Close\npdfjs-editor-add-signature-dialog-label = This modal allows the user to create a signature to add to a PDF document. The user can edit the name (which also serves as the alt text), and optionally save the signature for repeated use.\npdfjs-editor-add-signature-dialog-title = Add a signature\npdfjs-editor-add-signature-type-button = Type\n .title = Type\npdfjs-editor-add-signature-draw-button = Draw\n .title = Draw\npdfjs-editor-add-signature-image-button = Image\n .title = Image\npdfjs-editor-add-signature-type-input =\n .aria-label = Type your signature\n .placeholder = Type your signature\npdfjs-editor-add-signature-draw-placeholder = Draw your signature\npdfjs-editor-add-signature-draw-thickness-range-label = Thickness\npdfjs-editor-add-signature-draw-thickness-range =\n .title = Drawing thickness: { $thickness }\npdfjs-editor-add-signature-image-placeholder = Drag a file here to upload\npdfjs-editor-add-signature-image-browse-link =\n { PLATFORM() ->\n [macos] Or choose image files\n *[other] Or browse image files\n }\npdfjs-editor-add-signature-description-label = Description (alt text)\npdfjs-editor-add-signature-description-input =\n .title = Description (alt text)\npdfjs-editor-add-signature-description-default-when-drawing = Signature\npdfjs-editor-add-signature-clear-button-label = Clear signature\npdfjs-editor-add-signature-clear-button =\n .title = Clear signature\npdfjs-editor-add-signature-save-checkbox = Save signature\npdfjs-editor-add-signature-save-warning-message = You\u2019ve reached the limit of 5 saved signatures. Remove one to save more.\npdfjs-editor-add-signature-image-upload-error-title = Couldn\u2019t upload image\npdfjs-editor-add-signature-image-upload-error-description = Check your network connection or try another image.\npdfjs-editor-add-signature-error-close-button = Close\npdfjs-editor-add-signature-cancel-button = Cancel\npdfjs-editor-add-signature-add-button = Add\npdfjs-editor-delete-signature-button1 =\n .title = Remove saved signature\npdfjs-editor-delete-signature-button-label1 = Remove saved signature\npdfjs-editor-add-signature-edit-button-label = Edit description\npdfjs-editor-edit-signature-dialog-title = Edit description\npdfjs-editor-edit-signature-update-button = Update";
|
return createBundle(lang, text);
|
}
|
}
|
|
;// ./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 {
|
#eventAbortController = null;
|
constructor({
|
linkService,
|
eventBus
|
}) {
|
this.linkService = linkService;
|
this.eventBus = eventBus;
|
this._initialized = false;
|
this._fingerprint = "";
|
this.reset();
|
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 {
|
href,
|
protocol
|
} = document.location;
|
if (protocol !== "file:") {
|
newUrl = updateUrlHash(href, 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.#eventAbortController) {
|
return;
|
}
|
this.#eventAbortController = new AbortController();
|
const {
|
signal
|
} = this.#eventAbortController;
|
this.eventBus._on("updateviewarea", this.#updateViewarea.bind(this), {
|
signal
|
});
|
window.addEventListener("popstate", this.#popState.bind(this), {
|
signal
|
});
|
window.addEventListener("pagehide", this.#pageHide.bind(this), {
|
signal
|
});
|
}
|
#unbindEvents() {
|
this.#eventAbortController?.abort();
|
this.#eventAbortController = 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;
|
}
|
|
;// ./web/annotation_editor_layer_builder.js
|
|
|
class AnnotationEditorLayerBuilder {
|
#annotationLayer = null;
|
#drawLayer = null;
|
#onAppend = null;
|
#structTreeLayer = null;
|
#textLayer = null;
|
#uiManager;
|
constructor(options) {
|
this.pdfPage = options.pdfPage;
|
this.accessibilityManager = options.accessibilityManager;
|
this.l10n = options.l10n;
|
this.l10n ||= new genericl10n_GenericL10n();
|
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;
|
this.#onAppend = options.onAppend || null;
|
this.#structTreeLayer = options.structTreeLayer || 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.hidden = true;
|
div.dir = this.#uiManager.direction;
|
this.#onAppend?.(div);
|
this.annotationEditorLayer = new AnnotationEditorLayer({
|
uiManager: this.#uiManager,
|
div,
|
structTreeLayer: this.#structTreeLayer,
|
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.annotationEditorLayer.destroy();
|
}
|
hide() {
|
if (!this.div) {
|
return;
|
}
|
this.annotationEditorLayer.pause(true);
|
this.div.hidden = true;
|
}
|
show() {
|
if (!this.div || this.annotationEditorLayer.isInvisible) {
|
return;
|
}
|
this.div.hidden = false;
|
this.annotationEditorLayer.pause(false);
|
}
|
}
|
|
;// ./web/app_options.js
|
{
|
var compatParams = new Map();
|
const userAgent = navigator.userAgent || "";
|
const platform = navigator.platform || "";
|
const maxTouchPoints = navigator.maxTouchPoints || 1;
|
const isAndroid = /Android/.test(userAgent);
|
const isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) || platform === "MacIntel" && maxTouchPoints > 1;
|
(function () {
|
if (isIOS || isAndroid) {
|
compatParams.set("maxCanvasPixels", 5242880);
|
}
|
})();
|
(function () {
|
if (isAndroid) {
|
compatParams.set("useSystemFonts", false);
|
}
|
})();
|
}
|
const OptionKind = {
|
BROWSER: 0x01,
|
VIEWER: 0x02,
|
API: 0x04,
|
WORKER: 0x08,
|
EVENT_DISPATCH: 0x10,
|
PREFERENCE: 0x80
|
};
|
const Type = {
|
BOOLEAN: 0x01,
|
NUMBER: 0x02,
|
OBJECT: 0x04,
|
STRING: 0x08,
|
UNDEFINED: 0x10
|
};
|
const defaultOptions = {
|
allowedGlobalEvents: {
|
value: null,
|
kind: OptionKind.BROWSER
|
},
|
canvasMaxAreaInBytes: {
|
value: -1,
|
kind: OptionKind.BROWSER + OptionKind.API
|
},
|
isInAutomation: {
|
value: false,
|
kind: OptionKind.BROWSER
|
},
|
localeProperties: {
|
value: {
|
lang: navigator.language || "en-US"
|
},
|
kind: OptionKind.BROWSER
|
},
|
maxCanvasDim: {
|
value: 32767,
|
kind: OptionKind.BROWSER + OptionKind.VIEWER
|
},
|
nimbusDataStr: {
|
value: "",
|
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
|
},
|
supportsPrinting: {
|
value: true,
|
kind: OptionKind.BROWSER
|
},
|
toolbarDensity: {
|
value: 0,
|
kind: OptionKind.BROWSER + OptionKind.EVENT_DISPATCH
|
},
|
altTextLearnMoreUrl: {
|
value: "",
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
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
|
},
|
enableAltText: {
|
value: false,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
enableAltTextModelDownload: {
|
value: true,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE + OptionKind.EVENT_DISPATCH
|
},
|
enableAutoLinking: {
|
value: true,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
enableDetailCanvas: {
|
value: true,
|
kind: OptionKind.VIEWER
|
},
|
enableGuessAltText: {
|
value: true,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE + OptionKind.EVENT_DISPATCH
|
},
|
enableHighlightFloatingButton: {
|
value: false,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
enableNewAltTextWhenAddingImage: {
|
value: true,
|
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
|
},
|
enableSignatureEditor: {
|
value: false,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
enableUpdatedAddImage: {
|
value: false,
|
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: "./images/",
|
kind: OptionKind.VIEWER
|
},
|
maxCanvasPixels: {
|
value: 2 ** 25,
|
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
|
},
|
viewerCssTheme: {
|
value: 0,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
viewOnLoad: {
|
value: 0,
|
kind: OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
cMapPacked: {
|
value: true,
|
kind: OptionKind.API
|
},
|
cMapUrl: {
|
value: "../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
|
},
|
enableHWA: {
|
value: true,
|
kind: OptionKind.API + OptionKind.VIEWER + OptionKind.PREFERENCE
|
},
|
enableXfa: {
|
value: true,
|
kind: OptionKind.API + OptionKind.PREFERENCE
|
},
|
fontExtraProperties: {
|
value: false,
|
kind: OptionKind.API
|
},
|
iccUrl: {
|
value: "../web/iccs/",
|
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: "../web/standard_fonts/",
|
kind: OptionKind.API
|
},
|
useSystemFonts: {
|
value: undefined,
|
kind: OptionKind.API,
|
type: Type.BOOLEAN + Type.UNDEFINED
|
},
|
verbosity: {
|
value: 1,
|
kind: OptionKind.API
|
},
|
wasmUrl: {
|
value: "../web/wasm/",
|
kind: OptionKind.API
|
},
|
workerPort: {
|
value: null,
|
kind: OptionKind.WORKER
|
},
|
workerSrc: {
|
value: "../build/pdf.worker.mjs",
|
kind: OptionKind.WORKER
|
}
|
};
|
{
|
defaultOptions.defaultUrl = {
|
value: "compressed.tracemonkey-pldi-09.pdf",
|
kind: OptionKind.VIEWER
|
};
|
defaultOptions.sandboxBundleSrc = {
|
value: "../build/pdf.sandbox.mjs",
|
kind: OptionKind.VIEWER
|
};
|
defaultOptions.enableFakeMLManager = {
|
value: true,
|
kind: OptionKind.VIEWER
|
};
|
}
|
{
|
defaultOptions.disablePreferences = {
|
value: false,
|
kind: OptionKind.VIEWER
|
};
|
}
|
class AppOptions {
|
static eventBus;
|
static #opts = new Map();
|
static {
|
for (const name in defaultOptions) {
|
this.#opts.set(name, defaultOptions[name].value);
|
}
|
for (const [name, value] of compatParams) {
|
this.#opts.set(name, value);
|
}
|
this._hasInvokedSet = false;
|
this._checkDisablePreferences = () => {
|
if (this.get("disablePreferences")) {
|
return true;
|
}
|
if (this._hasInvokedSet) {
|
console.warn("The Preferences may override manually set AppOptions; " + 'please use the "disablePreferences"-option to prevent that.');
|
}
|
return false;
|
};
|
}
|
static get(name) {
|
return this.#opts.get(name);
|
}
|
static getAll(kind = null, defaultOnly = false) {
|
const options = Object.create(null);
|
for (const name in defaultOptions) {
|
const defaultOpt = defaultOptions[name];
|
if (kind && !(kind & defaultOpt.kind)) {
|
continue;
|
}
|
options[name] = !defaultOnly ? this.#opts.get(name) : defaultOpt.value;
|
}
|
return options;
|
}
|
static set(name, value) {
|
this.setAll({
|
[name]: value
|
});
|
}
|
static setAll(options, prefs = false) {
|
this._hasInvokedSet ||= true;
|
let events;
|
for (const name in options) {
|
const defaultOpt = defaultOptions[name],
|
userOpt = options[name];
|
if (!defaultOpt || !(typeof userOpt === typeof defaultOpt.value || Type[(typeof userOpt).toUpperCase()] & defaultOpt.type)) {
|
continue;
|
}
|
const {
|
kind
|
} = defaultOpt;
|
if (prefs && !(kind & OptionKind.BROWSER || kind & OptionKind.PREFERENCE)) {
|
continue;
|
}
|
if (this.eventBus && kind & OptionKind.EVENT_DISPATCH) {
|
(events ||= new Map()).set(name, userOpt);
|
}
|
this.#opts.set(name, userOpt);
|
}
|
if (events) {
|
for (const [name, value] of events) {
|
this.eventBus.dispatch(name.toLowerCase(), {
|
source: this,
|
value
|
});
|
}
|
}
|
}
|
}
|
|
;// ./web/autolinker.js
|
|
|
function DOMRectToPDF({
|
width,
|
height,
|
left,
|
top
|
}, pdfPageView) {
|
if (width === 0 || height === 0) {
|
return null;
|
}
|
const pageBox = pdfPageView.textLayer.div.getBoundingClientRect();
|
const bottomLeft = pdfPageView.getPagePoint(left - pageBox.left, top - pageBox.top);
|
const topRight = pdfPageView.getPagePoint(left - pageBox.left + width, top - pageBox.top + height);
|
return Util.normalizeRect([bottomLeft[0], bottomLeft[1], topRight[0], topRight[1]]);
|
}
|
function calculateLinkPosition(range, pdfPageView) {
|
const rangeRects = range.getClientRects();
|
if (rangeRects.length === 1) {
|
return {
|
rect: DOMRectToPDF(rangeRects[0], pdfPageView)
|
};
|
}
|
const rect = [Infinity, Infinity, -Infinity, -Infinity];
|
const quadPoints = [];
|
let i = 0;
|
for (const domRect of rangeRects) {
|
const normalized = DOMRectToPDF(domRect, pdfPageView);
|
if (normalized === null) {
|
continue;
|
}
|
quadPoints[i] = quadPoints[i + 4] = normalized[0];
|
quadPoints[i + 1] = quadPoints[i + 3] = normalized[3];
|
quadPoints[i + 2] = quadPoints[i + 6] = normalized[2];
|
quadPoints[i + 5] = quadPoints[i + 7] = normalized[1];
|
Util.rectBoundingBox(...normalized, rect);
|
i += 8;
|
}
|
return {
|
quadPoints,
|
rect
|
};
|
}
|
function textPosition(container, offset) {
|
let currentContainer = container;
|
do {
|
if (currentContainer.nodeType === Node.TEXT_NODE) {
|
const currentLength = currentContainer.textContent.length;
|
if (offset <= currentLength) {
|
return [currentContainer, offset];
|
}
|
offset -= currentLength;
|
} else if (currentContainer.firstChild) {
|
currentContainer = currentContainer.firstChild;
|
continue;
|
}
|
while (!currentContainer.nextSibling && currentContainer !== container) {
|
currentContainer = currentContainer.parentNode;
|
}
|
if (currentContainer !== container) {
|
currentContainer = currentContainer.nextSibling;
|
}
|
} while (currentContainer !== container);
|
throw new Error("Offset is bigger than container's contents length.");
|
}
|
function createLinkAnnotation({
|
url,
|
index,
|
length
|
}, pdfPageView, id) {
|
const highlighter = pdfPageView._textHighlighter;
|
const [{
|
begin,
|
end
|
}] = highlighter._convertMatches([index], [length]);
|
const range = new Range();
|
range.setStart(...textPosition(highlighter.textDivs[begin.divIdx], begin.offset));
|
range.setEnd(...textPosition(highlighter.textDivs[end.divIdx], end.offset));
|
return {
|
id: `inferred_link_${id}`,
|
unsafeUrl: url,
|
url,
|
annotationType: AnnotationType.LINK,
|
rotation: 0,
|
...calculateLinkPosition(range, pdfPageView),
|
borderStyle: null
|
};
|
}
|
class Autolinker {
|
static #index = 0;
|
static #regex;
|
static findLinks(text) {
|
this.#regex ??= /\b(?:https?:\/\/|mailto:|www\.)(?:[\S--[\p{P}<>]]|\/|[\S--[\[\]]]+[\S--[\p{P}<>]])+|\b[\S--[@\p{Ps}\p{Pe}<>]]+@([\S--[\p{P}<>]]+(?:\.[\S--[\p{P}<>]]+)+)/gmv;
|
const [normalizedText, diffs] = normalize(text);
|
const matches = normalizedText.matchAll(this.#regex);
|
const links = [];
|
for (const match of matches) {
|
const [url, emailDomain] = match;
|
let raw;
|
if (url.startsWith("www.") || url.startsWith("http://") || url.startsWith("https://")) {
|
raw = url;
|
} else if (URL.canParse(`http://${emailDomain}`)) {
|
raw = url.startsWith("mailto:") ? url : `mailto:${url}`;
|
} else {
|
continue;
|
}
|
const absoluteURL = createValidAbsoluteUrl(raw, null, {
|
addDefaultProtocol: true
|
});
|
if (absoluteURL) {
|
const [index, length] = getOriginalIndex(diffs, match.index, url.length);
|
links.push({
|
url: absoluteURL.href,
|
index,
|
length
|
});
|
}
|
}
|
return links;
|
}
|
static processLinks(pdfPageView) {
|
return this.findLinks(pdfPageView._textHighlighter.textContentItemsStr.join("\n")).map(link => createLinkAnnotation(link, pdfPageView, this.#index++));
|
}
|
}
|
|
;// ./web/base_pdf_page_view.js
|
|
|
class BasePDFPageView {
|
#enableHWA = false;
|
#loadingId = null;
|
#renderError = null;
|
#renderingState = RenderingStates.INITIAL;
|
#showCanvas = null;
|
canvas = null;
|
div = null;
|
eventBus = null;
|
id = null;
|
pageColors = null;
|
renderingQueue = null;
|
renderTask = null;
|
resume = null;
|
constructor(options) {
|
this.#enableHWA = #enableHWA in options ? options.#enableHWA : options.enableHWA || false;
|
this.eventBus = options.eventBus;
|
this.id = options.id;
|
this.pageColors = options.pageColors || null;
|
this.renderingQueue = options.renderingQueue;
|
}
|
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;
|
}
|
}
|
_createCanvas(onShow, hideUntilComplete = false) {
|
const {
|
pageColors
|
} = this;
|
const hasHCM = !!(pageColors?.background && pageColors?.foreground);
|
const prevCanvas = this.canvas;
|
const updateOnFirstShow = !prevCanvas && !hasHCM && !hideUntilComplete;
|
const canvas = this.canvas = document.createElement("canvas");
|
this.#showCanvas = isLastShow => {
|
if (updateOnFirstShow) {
|
onShow(canvas);
|
this.#showCanvas = null;
|
return;
|
}
|
if (!isLastShow) {
|
return;
|
}
|
if (prevCanvas) {
|
prevCanvas.replaceWith(canvas);
|
prevCanvas.width = prevCanvas.height = 0;
|
} else {
|
onShow(canvas);
|
}
|
};
|
const ctx = canvas.getContext("2d", {
|
alpha: false,
|
willReadFrequently: !this.#enableHWA
|
});
|
return {
|
canvas,
|
prevCanvas,
|
ctx
|
};
|
}
|
#renderContinueCallback = cont => {
|
this.#showCanvas?.(false);
|
if (this.renderingQueue && !this.renderingQueue.isHighestPriority(this)) {
|
this.renderingState = RenderingStates.PAUSED;
|
this.resume = () => {
|
this.renderingState = RenderingStates.RUNNING;
|
cont();
|
};
|
return;
|
}
|
cont();
|
};
|
_resetCanvas() {
|
const {
|
canvas
|
} = this;
|
if (!canvas) {
|
return;
|
}
|
canvas.remove();
|
canvas.width = canvas.height = 0;
|
this.canvas = null;
|
}
|
async _drawCanvas(options, onCancel, onFinish) {
|
const renderTask = this.renderTask = this.pdfPage.render(options);
|
renderTask.onContinue = this.#renderContinueCallback;
|
renderTask.onError = error => {
|
if (error instanceof RenderingCancelledException) {
|
onCancel();
|
this.#renderError = null;
|
}
|
};
|
let error = null;
|
try {
|
await renderTask.promise;
|
this.#showCanvas?.(true);
|
} catch (e) {
|
if (e instanceof RenderingCancelledException) {
|
return;
|
}
|
error = e;
|
this.#showCanvas?.(true);
|
} finally {
|
this.#renderError = error;
|
if (renderTask === this.renderTask) {
|
this.renderTask = null;
|
}
|
}
|
this.renderingState = RenderingStates.FINISHED;
|
onFinish(renderTask);
|
if (error) {
|
throw error;
|
}
|
}
|
cancelRendering({
|
cancelExtraDelay = 0
|
} = {}) {
|
if (this.renderTask) {
|
this.renderTask.cancel(cancelExtraDelay);
|
this.renderTask = null;
|
}
|
this.resume = null;
|
}
|
dispatchPageRender() {
|
this.eventBus.dispatch("pagerender", {
|
source: this,
|
pageNumber: this.id
|
});
|
}
|
dispatchPageRendered(cssTransform, isDetailView) {
|
this.eventBus.dispatch("pagerendered", {
|
source: this,
|
pageNumber: this.id,
|
cssTransform,
|
isDetailView,
|
timestamp: performance.now(),
|
error: this.#renderError
|
});
|
}
|
}
|
|
;// ./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;
|
}
|
}
|
|
;// ./web/pdf_page_detail_view.js
|
|
|
|
class PDFPageDetailView extends BasePDFPageView {
|
#detailArea = null;
|
renderingCancelled = false;
|
constructor({
|
pageView
|
}) {
|
super(pageView);
|
this.pageView = pageView;
|
this.renderingId = "detail" + this.id;
|
this.div = pageView.div;
|
}
|
setPdfPage(pdfPage) {
|
this.pageView.setPdfPage(pdfPage);
|
}
|
get pdfPage() {
|
return this.pageView.pdfPage;
|
}
|
get renderingState() {
|
return super.renderingState;
|
}
|
set renderingState(value) {
|
this.renderingCancelled = false;
|
super.renderingState = value;
|
}
|
reset({
|
keepCanvas = false
|
} = {}) {
|
const renderingCancelled = this.renderingCancelled || this.renderingState === RenderingStates.RUNNING || this.renderingState === RenderingStates.PAUSED;
|
this.cancelRendering();
|
this.renderingState = RenderingStates.INITIAL;
|
this.renderingCancelled = renderingCancelled;
|
if (!keepCanvas) {
|
this._resetCanvas();
|
}
|
}
|
#shouldRenderDifferentArea(visibleArea) {
|
if (!this.#detailArea) {
|
return true;
|
}
|
const minDetailX = this.#detailArea.minX;
|
const minDetailY = this.#detailArea.minY;
|
const maxDetailX = this.#detailArea.width + minDetailX;
|
const maxDetailY = this.#detailArea.height + minDetailY;
|
if (visibleArea.minX < minDetailX || visibleArea.minY < minDetailY || visibleArea.maxX > maxDetailX || visibleArea.maxY > maxDetailY) {
|
return true;
|
}
|
const {
|
width: maxWidth,
|
height: maxHeight,
|
scale
|
} = this.pageView.viewport;
|
if (this.#detailArea.scale !== scale) {
|
return true;
|
}
|
const paddingLeftSize = visibleArea.minX - minDetailX;
|
const paddingRightSize = maxDetailX - visibleArea.maxX;
|
const paddingTopSize = visibleArea.minY - minDetailY;
|
const paddingBottomSize = maxDetailY - visibleArea.maxY;
|
const MOVEMENT_THRESHOLD = 0.5;
|
const ratio = (1 + MOVEMENT_THRESHOLD) / MOVEMENT_THRESHOLD;
|
if (minDetailX > 0 && paddingRightSize / paddingLeftSize > ratio || maxDetailX < maxWidth && paddingLeftSize / paddingRightSize > ratio || minDetailY > 0 && paddingBottomSize / paddingTopSize > ratio || maxDetailY < maxHeight && paddingTopSize / paddingBottomSize > ratio) {
|
return true;
|
}
|
return false;
|
}
|
update({
|
visibleArea = null,
|
underlyingViewUpdated = false
|
} = {}) {
|
if (underlyingViewUpdated) {
|
this.cancelRendering();
|
this.renderingState = RenderingStates.INITIAL;
|
return;
|
}
|
if (!this.#shouldRenderDifferentArea(visibleArea)) {
|
return;
|
}
|
const {
|
viewport,
|
maxCanvasPixels
|
} = this.pageView;
|
const visibleWidth = visibleArea.maxX - visibleArea.minX;
|
const visibleHeight = visibleArea.maxY - visibleArea.minY;
|
const visiblePixels = visibleWidth * visibleHeight * OutputScale.pixelRatio ** 2;
|
const maxDetailToVisibleLinearRatio = Math.sqrt(maxCanvasPixels / visiblePixels);
|
const maxOverflowScale = (maxDetailToVisibleLinearRatio - 1) / 2;
|
let overflowScale = Math.min(1, maxOverflowScale);
|
if (overflowScale < 0) {
|
overflowScale = 0;
|
}
|
const overflowWidth = visibleWidth * overflowScale;
|
const overflowHeight = visibleHeight * overflowScale;
|
const minX = Math.max(0, visibleArea.minX - overflowWidth);
|
const maxX = Math.min(viewport.width, visibleArea.maxX + overflowWidth);
|
const minY = Math.max(0, visibleArea.minY - overflowHeight);
|
const maxY = Math.min(viewport.height, visibleArea.maxY + overflowHeight);
|
const width = maxX - minX;
|
const height = maxY - minY;
|
this.#detailArea = {
|
minX,
|
minY,
|
width,
|
height,
|
scale: viewport.scale
|
};
|
this.reset({
|
keepCanvas: true
|
});
|
}
|
async draw() {
|
if (this.pageView.detailView !== this) {
|
return undefined;
|
}
|
const hideUntilComplete = this.pageView.renderingState === RenderingStates.FINISHED || this.renderingState === RenderingStates.FINISHED;
|
if (this.renderingState !== RenderingStates.INITIAL) {
|
console.error("Must be in new state before drawing");
|
this.reset();
|
}
|
const {
|
div,
|
pdfPage,
|
viewport
|
} = this.pageView;
|
if (!pdfPage) {
|
this.renderingState = RenderingStates.FINISHED;
|
throw new Error("pdfPage is not loaded");
|
}
|
this.renderingState = RenderingStates.RUNNING;
|
const canvasWrapper = this.pageView._ensureCanvasWrapper();
|
const {
|
canvas,
|
prevCanvas,
|
ctx
|
} = this._createCanvas(newCanvas => {
|
if (canvasWrapper.firstElementChild?.tagName === "CANVAS") {
|
canvasWrapper.firstElementChild.after(newCanvas);
|
} else {
|
canvasWrapper.prepend(newCanvas);
|
}
|
}, hideUntilComplete);
|
canvas.setAttribute("aria-hidden", "true");
|
const {
|
width,
|
height
|
} = viewport;
|
const area = this.#detailArea;
|
const {
|
pixelRatio
|
} = OutputScale;
|
const transform = [pixelRatio, 0, 0, pixelRatio, -area.minX * pixelRatio, -area.minY * pixelRatio];
|
canvas.width = area.width * pixelRatio;
|
canvas.height = area.height * pixelRatio;
|
const {
|
style
|
} = canvas;
|
style.width = `${area.width * 100 / width}%`;
|
style.height = `${area.height * 100 / height}%`;
|
style.top = `${area.minY * 100 / height}%`;
|
style.left = `${area.minX * 100 / width}%`;
|
const renderingPromise = this._drawCanvas(this.pageView._getRenderingContext(ctx, transform), () => {
|
this.canvas?.remove();
|
this.canvas = prevCanvas;
|
}, () => {
|
this.dispatchPageRendered(false, true);
|
});
|
div.setAttribute("data-loaded", true);
|
this.dispatchPageRender();
|
return renderingPromise;
|
}
|
}
|
|
;// ./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 {
|
#promise;
|
#treeDom = null;
|
#treePromise;
|
#elementAttributes = new Map();
|
#rawDims;
|
#elementsToAddToTextLayer = null;
|
constructor(pdfPage, rawDims) {
|
this.#promise = pdfPage.getStructTree();
|
this.#rawDims = rawDims;
|
}
|
async render() {
|
if (this.#treePromise) {
|
return this.#treePromise;
|
}
|
const {
|
promise,
|
resolve,
|
reject
|
} = Promise.withResolvers();
|
this.#treePromise = promise;
|
try {
|
this.#treeDom = this.#walk(await this.#promise);
|
} catch (ex) {
|
reject(ex);
|
}
|
this.#promise = null;
|
this.#treeDom?.classList.add("structTree");
|
resolve(this.#treeDom);
|
return promise;
|
}
|
async getAriaAttributes(annotationId) {
|
try {
|
await this.render();
|
return this.#elementAttributes.get(annotationId);
|
} catch {}
|
return null;
|
}
|
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) {
|
let added = false;
|
const label = removeNullCharacters(alt);
|
for (const child of structElement.children) {
|
if (child.type === "annotation") {
|
let attrs = this.#elementAttributes.get(child.id);
|
if (!attrs) {
|
attrs = new Map();
|
this.#elementAttributes.set(child.id, attrs);
|
}
|
attrs.set("aria-label", label);
|
added = true;
|
}
|
}
|
if (!added) {
|
htmlElement.setAttribute("aria-label", label);
|
}
|
}
|
if (id !== undefined) {
|
htmlElement.setAttribute("aria-owns", id);
|
}
|
if (lang !== undefined) {
|
htmlElement.setAttribute("lang", removeNullCharacters(lang, true));
|
}
|
}
|
#addImageInTextLayer(node, element) {
|
const {
|
alt,
|
bbox,
|
children
|
} = node;
|
const child = children?.[0];
|
if (!this.#rawDims || !alt || !bbox || child?.type !== "content") {
|
return false;
|
}
|
const {
|
id
|
} = child;
|
if (!id) {
|
return false;
|
}
|
element.setAttribute("aria-owns", id);
|
const img = document.createElement("span");
|
(this.#elementsToAddToTextLayer ||= new Map()).set(id, img);
|
img.setAttribute("role", "img");
|
img.setAttribute("aria-label", removeNullCharacters(alt));
|
const {
|
pageHeight,
|
pageX,
|
pageY
|
} = this.#rawDims;
|
const calc = "calc(var(--total-scale-factor) *";
|
const {
|
style
|
} = img;
|
style.width = `${calc}${bbox[2] - bbox[0]}px)`;
|
style.height = `${calc}${bbox[3] - bbox[1]}px)`;
|
style.left = `${calc}${bbox[0] - pageX}px)`;
|
style.top = `${calc}${pageHeight - bbox[3] + pageY}px)`;
|
return true;
|
}
|
addElementsToTextLayer() {
|
if (!this.#elementsToAddToTextLayer) {
|
return;
|
}
|
for (const [id, img] of this.#elementsToAddToTextLayer) {
|
document.getElementById(id)?.append(img);
|
}
|
this.#elementsToAddToTextLayer.clear();
|
this.#elementsToAddToTextLayer = null;
|
}
|
#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]);
|
}
|
if (role === "Figure" && this.#addImageInTextLayer(node, element)) {
|
return element;
|
}
|
}
|
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;
|
}
|
}
|
|
;// ./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;
|
}
|
}
|
|
;// ./web/text_highlighter.js
|
class TextHighlighter {
|
#eventAbortController = null;
|
constructor({
|
findController,
|
eventBus,
|
pageIndex
|
}) {
|
this.findController = findController;
|
this.matches = [];
|
this.eventBus = eventBus;
|
this.pageIdx = pageIndex;
|
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.#eventAbortController) {
|
this.#eventAbortController = new AbortController();
|
this.eventBus._on("updatetextlayermatches", evt => {
|
if (evt.pageIndex === this.pageIdx || evt.pageIndex === -1) {
|
this._updateMatches();
|
}
|
}, {
|
signal: this.#eventAbortController.signal
|
});
|
}
|
this._updateMatches();
|
}
|
disable() {
|
if (!this.enabled) {
|
return;
|
}
|
this.enabled = false;
|
this.#eventAbortController?.abort();
|
this.#eventAbortController = 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);
|
if (className.includes("selected")) {
|
const {
|
left
|
} = span.getClientRects()[0];
|
const parentLeft = div.getBoundingClientRect().left;
|
return left - parentLeft;
|
}
|
return 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);
|
}
|
}
|
|
;// ./web/text_layer_builder.js
|
|
|
class TextLayerBuilder {
|
#enablePermissions = false;
|
#onAppend = null;
|
#renderingDone = false;
|
#textLayer = null;
|
static #textLayers = new Map();
|
static #selectionChangeAbortController = null;
|
constructor({
|
pdfPage,
|
highlighter = null,
|
accessibilityManager = null,
|
enablePermissions = false,
|
onAppend = null
|
}) {
|
this.pdfPage = pdfPage;
|
this.highlighter = highlighter;
|
this.accessibilityManager = accessibilityManager;
|
this.#enablePermissions = enablePermissions === true;
|
this.#onAppend = onAppend;
|
this.div = document.createElement("div");
|
this.div.tabIndex = 0;
|
this.div.className = "textLayer";
|
}
|
async render({
|
viewport,
|
textContentParams = null
|
}) {
|
if (this.#renderingDone && this.#textLayer) {
|
this.#textLayer.update({
|
viewport,
|
onBefore: this.hide.bind(this)
|
});
|
this.show();
|
return;
|
}
|
this.cancel();
|
this.#textLayer = new TextLayer({
|
textContentSource: this.pdfPage.streamTextContent(textContentParams || {
|
includeMarkedContent: true,
|
disableNormalization: true
|
}),
|
container: this.div,
|
viewport
|
});
|
const {
|
textDivs,
|
textContentItemsStr
|
} = this.#textLayer;
|
this.highlighter?.setTextMapping(textDivs, textContentItemsStr);
|
this.accessibilityManager?.setTextMapping(textDivs);
|
await this.#textLayer.render();
|
this.#renderingDone = true;
|
const endOfContent = document.createElement("div");
|
endOfContent.className = "endOfContent";
|
this.div.append(endOfContent);
|
this.#bindMouse(endOfContent);
|
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() {
|
this.#textLayer?.cancel();
|
this.#textLayer = null;
|
this.highlighter?.disable();
|
this.accessibilityManager?.disable();
|
TextLayerBuilder.#removeGlobalSelectionListener(this.div);
|
}
|
#bindMouse(end) {
|
const {
|
div
|
} = this;
|
div.addEventListener("mousedown", () => {
|
div.classList.add("selecting");
|
});
|
div.addEventListener("copy", event => {
|
if (!this.#enablePermissions) {
|
const selection = document.getSelection();
|
event.clipboardData.setData("text/plain", removeNullCharacters(normalizeUnicode(selection.toString())));
|
}
|
stopEvent(event);
|
});
|
TextLayerBuilder.#textLayers.set(div, end);
|
TextLayerBuilder.#enableGlobalSelectionListener();
|
}
|
static #removeGlobalSelectionListener(textLayerDiv) {
|
this.#textLayers.delete(textLayerDiv);
|
if (this.#textLayers.size === 0) {
|
this.#selectionChangeAbortController?.abort();
|
this.#selectionChangeAbortController = null;
|
}
|
}
|
static #enableGlobalSelectionListener() {
|
if (this.#selectionChangeAbortController) {
|
return;
|
}
|
this.#selectionChangeAbortController = new AbortController();
|
const {
|
signal
|
} = this.#selectionChangeAbortController;
|
const reset = (end, textLayer) => {
|
textLayer.append(end);
|
end.style.width = "";
|
end.style.height = "";
|
textLayer.classList.remove("selecting");
|
};
|
let isPointerDown = false;
|
document.addEventListener("pointerdown", () => {
|
isPointerDown = true;
|
}, {
|
signal
|
});
|
document.addEventListener("pointerup", () => {
|
isPointerDown = false;
|
this.#textLayers.forEach(reset);
|
}, {
|
signal
|
});
|
window.addEventListener("blur", () => {
|
isPointerDown = false;
|
this.#textLayers.forEach(reset);
|
}, {
|
signal
|
});
|
document.addEventListener("keyup", () => {
|
if (!isPointerDown) {
|
this.#textLayers.forEach(reset);
|
}
|
}, {
|
signal
|
});
|
var isFirefox, prevRange;
|
document.addEventListener("selectionchange", () => {
|
const selection = document.getSelection();
|
if (selection.rangeCount === 0) {
|
this.#textLayers.forEach(reset);
|
return;
|
}
|
const activeTextLayers = new Set();
|
for (let i = 0; i < selection.rangeCount; i++) {
|
const range = selection.getRangeAt(i);
|
for (const textLayerDiv of this.#textLayers.keys()) {
|
if (!activeTextLayers.has(textLayerDiv) && range.intersectsNode(textLayerDiv)) {
|
activeTextLayers.add(textLayerDiv);
|
}
|
}
|
}
|
for (const [textLayerDiv, endDiv] of this.#textLayers) {
|
if (activeTextLayers.has(textLayerDiv)) {
|
textLayerDiv.classList.add("selecting");
|
} else {
|
reset(endDiv, textLayerDiv);
|
}
|
}
|
isFirefox ??= getComputedStyle(this.#textLayers.values().next().value).getPropertyValue("-moz-user-select") === "none";
|
if (isFirefox) {
|
return;
|
}
|
const range = selection.getRangeAt(0);
|
const modifyStart = prevRange && (range.compareBoundaryPoints(Range.END_TO_END, prevRange) === 0 || range.compareBoundaryPoints(Range.START_TO_END, prevRange) === 0);
|
let anchor = modifyStart ? range.startContainer : range.endContainer;
|
if (anchor.nodeType === Node.TEXT_NODE) {
|
anchor = anchor.parentNode;
|
}
|
if (!modifyStart && range.endOffset === 0) {
|
do {
|
while (!anchor.previousSibling) {
|
anchor = anchor.parentNode;
|
}
|
anchor = anchor.previousSibling;
|
} while (!anchor.childNodes.length);
|
}
|
const parentTextLayer = anchor.parentElement?.closest(".textLayer");
|
const endDiv = this.#textLayers.get(parentTextLayer);
|
if (endDiv) {
|
endDiv.style.width = parentTextLayer.style.width;
|
endDiv.style.height = parentTextLayer.style.height;
|
anchor.parentElement.insertBefore(endDiv, modifyStart ? anchor : anchor.nextSibling);
|
}
|
prevRange = range.cloneRange();
|
}, {
|
signal
|
});
|
}
|
}
|
|
;// ./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;
|
}
|
}
|
|
;// ./web/pdf_page_view.js
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
const DEFAULT_LAYER_PROPERTIES = {
|
annotationEditorUIManager: null,
|
annotationStorage: null,
|
downloadManager: null,
|
enableScripting: false,
|
fieldObjectsPromise: null,
|
findController: null,
|
hasJSActionsPromise: null,
|
get linkService() {
|
return new SimpleLinkService();
|
}
|
};
|
const LAYERS_ORDER = new Map([["canvasWrapper", 0], ["textLayer", 1], ["annotationLayer", 2], ["annotationEditorLayer", 3], ["xfaLayer", 3]]);
|
class PDFPageView extends BasePDFPageView {
|
#annotationMode = AnnotationMode.ENABLE_FORMS;
|
#canvasWrapper = null;
|
#enableAutoLinking = true;
|
#hasRestrictedScaling = false;
|
#isEditing = false;
|
#layerProperties = null;
|
#needsRestrictedScaling = false;
|
#originalViewport = null;
|
#previousRotation = null;
|
#scaleRoundX = 1;
|
#scaleRoundY = 1;
|
#textLayerMode = TextLayerMode.ENABLE;
|
#userUnit = 1;
|
#useThumbnailCanvas = {
|
directDrawing: true,
|
initialOptionalContent: true,
|
regularAnnotations: true
|
};
|
#layers = [null, null, null, null];
|
constructor(options) {
|
super(options);
|
const container = options.container;
|
const defaultViewport = options.defaultViewport;
|
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.enableDetailCanvas = options.enableDetailCanvas ?? true;
|
this.maxCanvasPixels = options.maxCanvasPixels ?? AppOptions.get("maxCanvasPixels");
|
this.maxCanvasDim = options.maxCanvasDim || AppOptions.get("maxCanvasDim");
|
this.#enableAutoLinking = options.enableAutoLinking !== false;
|
this.l10n = options.l10n;
|
this.l10n ||= new genericl10n_GenericL10n();
|
this._isStandalone = !this.renderingQueue?.hasViewer();
|
this._container = container;
|
this._annotationCanvasMap = null;
|
this.annotationLayer = null;
|
this.annotationEditorLayer = null;
|
this.textLayer = null;
|
this.xfaLayer = null;
|
this.structTreeLayer = null;
|
this.drawLayer = null;
|
this.detailView = 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);
|
if (this._isStandalone) {
|
container?.style.setProperty("--scale-factor", this.scale * PixelsPerInch.PDF_TO_CSS_UNITS);
|
if (this.pageColors?.background) {
|
container?.style.setProperty("--page-bg-color", this.pageColors.background);
|
}
|
const {
|
optionalContentConfigPromise
|
} = options;
|
if (optionalContentConfigPromise) {
|
optionalContentConfigPromise.then(optionalContentConfig => {
|
if (optionalContentConfigPromise !== this._optionalContentConfigPromise) {
|
return;
|
}
|
this.#useThumbnailCanvas.initialOptionalContent = optionalContentConfig.hasInitialVisibility;
|
});
|
}
|
if (!options.l10n) {
|
this.l10n.translate(this.div);
|
}
|
}
|
}
|
#addLayer(div, name) {
|
const pos = LAYERS_ORDER.get(name);
|
const oldDiv = this.#layers[pos];
|
this.#layers[pos] = div;
|
if (oldDiv) {
|
oldDiv.replaceWith(div);
|
return;
|
}
|
for (let i = pos - 1; i >= 0; i--) {
|
const layer = this.#layers[i];
|
if (layer) {
|
layer.after(div);
|
return;
|
}
|
}
|
this.div.prepend(div);
|
}
|
#setDimensions() {
|
const {
|
div,
|
viewport
|
} = this;
|
if (viewport.userUnit !== this.#userUnit) {
|
if (viewport.userUnit !== 1) {
|
div.style.setProperty("--user-unit", viewport.userUnit);
|
} else {
|
div.style.removeProperty("--user-unit");
|
}
|
this.#userUnit = viewport.userUnit;
|
}
|
if (this.pdfPage) {
|
if (this.#previousRotation === viewport.rotation) {
|
return;
|
}
|
this.#previousRotation = viewport.rotation;
|
}
|
setLayerDimensions(div, viewport, true, false);
|
}
|
setPdfPage(pdfPage) {
|
if (this._isStandalone && (this.pageColors?.foreground === "CanvasText" || this.pageColors?.background === "Canvas")) {
|
this._container?.style.setProperty("--hcm-highlight-filter", pdfPage.filterFactory.addHighlightHCMFilter("highlight", "CanvasText", "Canvas", "HighlightText", "Highlight"));
|
this._container?.style.setProperty("--hcm-highlight-selected-filter", pdfPage.filterFactory.addHighlightHCMFilter("highlight_selected", "CanvasText", "Canvas", "HighlightText", "Highlight"));
|
}
|
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();
|
}
|
hasEditableAnnotations() {
|
return !!this.annotationLayer?.hasEditableAnnotations();
|
}
|
get _textHighlighter() {
|
return shadow(this, "_textHighlighter", new TextHighlighter({
|
pageIndex: this.id - 1,
|
eventBus: this.eventBus,
|
findController: this.#layerProperties.findController
|
}));
|
}
|
#dispatchLayerRendered(name, error) {
|
this.eventBus.dispatch(name, {
|
source: this,
|
pageNumber: this.id,
|
error
|
});
|
}
|
async #renderAnnotationLayer() {
|
let error = null;
|
try {
|
await this.annotationLayer.render({
|
viewport: this.viewport,
|
intent: "display",
|
structTreeLayer: this.structTreeLayer
|
});
|
} catch (ex) {
|
console.error("#renderAnnotationLayer:", ex);
|
error = ex;
|
} finally {
|
this.#dispatchLayerRendered("annotationlayerrendered", error);
|
}
|
}
|
async #renderAnnotationEditorLayer() {
|
let error = null;
|
try {
|
await this.annotationEditorLayer.render({
|
viewport: this.viewport,
|
intent: "display"
|
});
|
} catch (ex) {
|
console.error("#renderAnnotationEditorLayer:", ex);
|
error = ex;
|
} finally {
|
this.#dispatchLayerRendered("annotationeditorlayerrendered", error);
|
}
|
}
|
async #renderDrawLayer() {
|
try {
|
await this.drawLayer.render({
|
intent: "display"
|
});
|
} catch (ex) {
|
console.error("#renderDrawLayer:", ex);
|
}
|
}
|
async #renderXfaLayer() {
|
let error = null;
|
try {
|
const result = await this.xfaLayer.render({
|
viewport: this.viewport,
|
intent: "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.#addLayer(this.xfaLayer.div, "xfaLayer");
|
this.l10n.resume();
|
}
|
this.#dispatchLayerRendered("xfalayerrendered", error);
|
}
|
}
|
async #renderTextLayer() {
|
if (!this.textLayer) {
|
return;
|
}
|
let error = null;
|
try {
|
await this.textLayer.render({
|
viewport: this.viewport
|
});
|
} catch (ex) {
|
if (ex instanceof AbortException) {
|
return;
|
}
|
console.error("#renderTextLayer:", ex);
|
error = ex;
|
}
|
this.#dispatchLayerRendered("textlayerrendered", error);
|
this.#renderStructTreeLayer();
|
}
|
async #renderStructTreeLayer() {
|
if (!this.textLayer) {
|
return;
|
}
|
const treeDom = await this.structTreeLayer?.render();
|
if (treeDom) {
|
this.l10n.pause();
|
this.structTreeLayer?.addElementsToTextLayer();
|
if (this.canvas && treeDom.parentNode !== this.canvas) {
|
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();
|
}
|
async #injectLinkAnnotations(textLayerPromise) {
|
let error = null;
|
try {
|
await textLayerPromise;
|
if (!this.annotationLayer) {
|
return;
|
}
|
await this.annotationLayer.injectLinkAnnotations({
|
inferredLinks: Autolinker.processLinks(this),
|
viewport: this.viewport,
|
structTreeLayer: this.structTreeLayer
|
});
|
} catch (ex) {
|
console.error("#injectLinkAnnotations:", ex);
|
error = ex;
|
}
|
}
|
_resetCanvas() {
|
super._resetCanvas();
|
this.#originalViewport = null;
|
}
|
reset({
|
keepAnnotationLayer = false,
|
keepAnnotationEditorLayer = false,
|
keepXfaLayer = false,
|
keepTextLayer = false,
|
keepCanvasWrapper = false,
|
preserveDetailViewState = false
|
} = {}) {
|
this.cancelRendering({
|
keepAnnotationLayer,
|
keepAnnotationEditorLayer,
|
keepXfaLayer,
|
keepTextLayer
|
});
|
this.renderingState = RenderingStates.INITIAL;
|
const div = this.div;
|
const childNodes = div.childNodes,
|
annotationLayerNode = keepAnnotationLayer && this.annotationLayer?.div || null,
|
annotationEditorLayerNode = keepAnnotationEditorLayer && this.annotationEditorLayer?.div || null,
|
xfaLayerNode = keepXfaLayer && this.xfaLayer?.div || null,
|
textLayerNode = keepTextLayer && this.textLayer?.div || null,
|
canvasWrapperNode = keepCanvasWrapper && this.#canvasWrapper || null;
|
for (let i = childNodes.length - 1; i >= 0; i--) {
|
const node = childNodes[i];
|
switch (node) {
|
case annotationLayerNode:
|
case annotationEditorLayerNode:
|
case xfaLayerNode:
|
case textLayerNode:
|
case canvasWrapperNode:
|
continue;
|
}
|
node.remove();
|
const layerIndex = this.#layers.indexOf(node);
|
if (layerIndex >= 0) {
|
this.#layers[layerIndex] = null;
|
}
|
}
|
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 (!keepCanvasWrapper && this.#canvasWrapper) {
|
this.#canvasWrapper = null;
|
this._resetCanvas();
|
}
|
if (!preserveDetailViewState) {
|
this.detailView?.reset({
|
keepCanvas: keepCanvasWrapper
|
});
|
if (!keepCanvasWrapper) {
|
this.detailView = null;
|
}
|
}
|
}
|
toggleEditingMode(isEditing) {
|
this.#isEditing = isEditing;
|
if (!this.hasEditableAnnotations()) {
|
return;
|
}
|
this.reset({
|
keepAnnotationLayer: true,
|
keepAnnotationEditorLayer: true,
|
keepXfaLayer: true,
|
keepTextLayer: true,
|
keepCanvasWrapper: true
|
});
|
}
|
updateVisibleArea(visibleArea) {
|
if (this.enableDetailCanvas) {
|
if (this.#needsRestrictedScaling && this.maxCanvasPixels > 0 && visibleArea) {
|
this.detailView ??= new PDFPageDetailView({
|
pageView: this
|
});
|
this.detailView.update({
|
visibleArea
|
});
|
} else if (this.detailView) {
|
this.detailView.reset();
|
this.detailView = null;
|
}
|
}
|
}
|
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._isStandalone) {
|
this._container?.style.setProperty("--scale-factor", this.viewport.scale);
|
}
|
this.#computeScale();
|
if (this.canvas) {
|
const onlyCssZoom = this.#hasRestrictedScaling && this.#needsRestrictedScaling;
|
const postponeDrawing = drawingDelay >= 0 && drawingDelay < 1000;
|
if (postponeDrawing || onlyCssZoom) {
|
if (postponeDrawing && !onlyCssZoom && this.renderingState !== RenderingStates.FINISHED) {
|
this.cancelRendering({
|
keepAnnotationLayer: true,
|
keepAnnotationEditorLayer: true,
|
keepXfaLayer: true,
|
keepTextLayer: true,
|
cancelExtraDelay: drawingDelay
|
});
|
this.renderingState = RenderingStates.FINISHED;
|
this.#useThumbnailCanvas.directDrawing = false;
|
}
|
this.cssTransform({
|
redrawAnnotationLayer: true,
|
redrawAnnotationEditorLayer: true,
|
redrawXfaLayer: true,
|
redrawTextLayer: !postponeDrawing,
|
hideTextLayer: postponeDrawing
|
});
|
if (!postponeDrawing) {
|
this.detailView?.update({
|
underlyingViewUpdated: true
|
});
|
this.dispatchPageRendered(true, false);
|
}
|
return;
|
}
|
}
|
this.cssTransform({});
|
this.reset({
|
keepAnnotationLayer: true,
|
keepAnnotationEditorLayer: true,
|
keepXfaLayer: true,
|
keepTextLayer: true,
|
keepCanvasWrapper: true,
|
preserveDetailViewState: true
|
});
|
this.detailView?.update({
|
underlyingViewUpdated: true
|
});
|
}
|
#computeScale() {
|
const {
|
width,
|
height
|
} = this.viewport;
|
const outputScale = this.outputScale = new OutputScale();
|
if (this.maxCanvasPixels === 0) {
|
const invScale = 1 / this.scale;
|
outputScale.sx *= invScale;
|
outputScale.sy *= invScale;
|
this.#needsRestrictedScaling = true;
|
} else {
|
this.#needsRestrictedScaling = outputScale.limitCanvas(width, height, this.maxCanvasPixels, this.maxCanvasDim);
|
}
|
}
|
cancelRendering({
|
keepAnnotationLayer = false,
|
keepAnnotationEditorLayer = false,
|
keepXfaLayer = false,
|
keepTextLayer = false,
|
cancelExtraDelay = 0
|
} = {}) {
|
super.cancelRendering({
|
cancelExtraDelay
|
});
|
if (this.textLayer && (!keepTextLayer || !this.textLayer.div)) {
|
this.textLayer.cancel();
|
this.textLayer = null;
|
}
|
if (this.annotationLayer && (!keepAnnotationLayer || !this.annotationLayer.div)) {
|
this.annotationLayer.cancel();
|
this.annotationLayer = null;
|
this._annotationCanvasMap = null;
|
}
|
if (this.structTreeLayer && !this.textLayer) {
|
this.structTreeLayer = 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({
|
redrawAnnotationLayer = false,
|
redrawAnnotationEditorLayer = false,
|
redrawXfaLayer = false,
|
redrawTextLayer = false,
|
hideTextLayer = false
|
}) {
|
const {
|
canvas
|
} = this;
|
if (!canvas) {
|
return;
|
}
|
const originalViewport = this.#originalViewport;
|
if (this.viewport !== originalViewport) {
|
const relativeRotation = (360 + this.viewport.rotation - originalViewport.rotation) % 360;
|
if (relativeRotation === 90 || relativeRotation === 270) {
|
const {
|
width,
|
height
|
} = this.viewport;
|
const scaleX = height / width;
|
const scaleY = width / height;
|
canvas.style.transform = `rotate(${relativeRotation}deg) scale(${scaleX},${scaleY})`;
|
} else {
|
canvas.style.transform = relativeRotation === 0 ? "" : `rotate(${relativeRotation}deg)`;
|
}
|
}
|
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);
|
}
|
_ensureCanvasWrapper() {
|
let canvasWrapper = this.#canvasWrapper;
|
if (!canvasWrapper) {
|
canvasWrapper = this.#canvasWrapper = document.createElement("div");
|
canvasWrapper.classList.add("canvasWrapper");
|
this.#addLayer(canvasWrapper, "canvasWrapper");
|
}
|
return canvasWrapper;
|
}
|
_getRenderingContext(canvasContext, transform) {
|
return {
|
canvasContext,
|
transform,
|
viewport: this.viewport,
|
annotationMode: this.#annotationMode,
|
optionalContentConfigPromise: this._optionalContentConfigPromise,
|
annotationCanvasMap: this._annotationCanvasMap,
|
pageColors: this.pageColors,
|
isEditing: this.#isEditing
|
};
|
}
|
async draw() {
|
if (this.renderingState !== RenderingStates.INITIAL) {
|
console.error("Must be in new state before drawing");
|
this.reset();
|
}
|
const {
|
div,
|
l10n,
|
pdfPage,
|
viewport
|
} = this;
|
if (!pdfPage) {
|
this.renderingState = RenderingStates.FINISHED;
|
throw new Error("pdfPage is not loaded");
|
}
|
this.renderingState = RenderingStates.RUNNING;
|
const canvasWrapper = this._ensureCanvasWrapper();
|
if (!this.textLayer && this.#textLayerMode !== TextLayerMode.DISABLE && !pdfPage.isPureXfa) {
|
this._accessibilityManager ||= new TextAccessibilityManager();
|
this.textLayer = new TextLayerBuilder({
|
pdfPage,
|
highlighter: this._textHighlighter,
|
accessibilityManager: this._accessibilityManager,
|
enablePermissions: this.#textLayerMode === TextLayerMode.ENABLE_PERMISSIONS,
|
onAppend: textLayerDiv => {
|
this.l10n.pause();
|
this.#addLayer(textLayerDiv, "textLayer");
|
this.l10n.resume();
|
}
|
});
|
}
|
if (!this.annotationLayer && this.#annotationMode !== AnnotationMode.DISABLE) {
|
const {
|
annotationStorage,
|
annotationEditorUIManager,
|
downloadManager,
|
enableScripting,
|
fieldObjectsPromise,
|
hasJSActionsPromise,
|
linkService
|
} = this.#layerProperties;
|
this._annotationCanvasMap ||= new Map();
|
this.annotationLayer = new AnnotationLayerBuilder({
|
pdfPage,
|
annotationStorage,
|
imageResourcesPath: this.imageResourcesPath,
|
renderForms: this.#annotationMode === AnnotationMode.ENABLE_FORMS,
|
linkService,
|
downloadManager,
|
enableScripting,
|
hasJSActionsPromise,
|
fieldObjectsPromise,
|
annotationCanvasMap: this._annotationCanvasMap,
|
accessibilityManager: this._accessibilityManager,
|
annotationEditorUIManager,
|
onAppend: annotationLayerDiv => {
|
this.#addLayer(annotationLayerDiv, "annotationLayer");
|
}
|
});
|
}
|
const {
|
width,
|
height
|
} = viewport;
|
this.#originalViewport = viewport;
|
const {
|
canvas,
|
prevCanvas,
|
ctx
|
} = this._createCanvas(newCanvas => {
|
canvasWrapper.prepend(newCanvas);
|
});
|
canvas.setAttribute("role", "presentation");
|
if (!this.outputScale) {
|
this.#computeScale();
|
}
|
const {
|
outputScale
|
} = this;
|
this.#hasRestrictedScaling = this.#needsRestrictedScaling;
|
const sfx = approximateFraction(outputScale.sx);
|
const sfy = approximateFraction(outputScale.sy);
|
const canvasWidth = canvas.width = floorToDivide(calcRound(width * outputScale.sx), sfx[0]);
|
const canvasHeight = canvas.height = floorToDivide(calcRound(height * outputScale.sy), sfy[0]);
|
const pageWidth = floorToDivide(calcRound(width), sfx[1]);
|
const pageHeight = floorToDivide(calcRound(height), sfy[1]);
|
outputScale.sx = canvasWidth / pageWidth;
|
outputScale.sy = canvasHeight / pageHeight;
|
if (this.#scaleRoundX !== sfx[1]) {
|
div.style.setProperty("--scale-round-x", `${sfx[1]}px`);
|
this.#scaleRoundX = sfx[1];
|
}
|
if (this.#scaleRoundY !== sfy[1]) {
|
div.style.setProperty("--scale-round-y", `${sfy[1]}px`);
|
this.#scaleRoundY = sfy[1];
|
}
|
const transform = outputScale.scaled ? [outputScale.sx, 0, 0, outputScale.sy, 0, 0] : null;
|
const resultPromise = this._drawCanvas(this._getRenderingContext(ctx, transform), () => {
|
prevCanvas?.remove();
|
this._resetCanvas();
|
}, renderTask => {
|
this.#useThumbnailCanvas.regularAnnotations = !renderTask.separateAnnots;
|
this.dispatchPageRendered(false, false);
|
}).then(async () => {
|
this.structTreeLayer ||= new StructTreeLayerBuilder(pdfPage, viewport.rawDims);
|
const textLayerPromise = this.#renderTextLayer();
|
if (this.annotationLayer) {
|
await this.#renderAnnotationLayer();
|
if (this.#enableAutoLinking && this.annotationLayer && this.textLayer) {
|
await this.#injectLinkAnnotations(textLayerPromise);
|
}
|
}
|
const {
|
annotationEditorUIManager
|
} = this.#layerProperties;
|
if (!annotationEditorUIManager) {
|
return;
|
}
|
this.drawLayer ||= new DrawLayerBuilder({
|
pageIndex: this.id
|
});
|
await this.#renderDrawLayer();
|
this.drawLayer.setParent(canvasWrapper);
|
this.annotationEditorLayer ||= new AnnotationEditorLayerBuilder({
|
uiManager: annotationEditorUIManager,
|
pdfPage,
|
l10n,
|
structTreeLayer: this.structTreeLayer,
|
accessibilityManager: this._accessibilityManager,
|
annotationLayer: this.annotationLayer?.annotationLayer,
|
textLayer: this.textLayer,
|
drawLayer: this.drawLayer.getDrawLayer(),
|
onAppend: annotationEditorLayerDiv => {
|
this.#addLayer(annotationEditorLayerDiv, "annotationEditorLayer");
|
}
|
});
|
this.#renderAnnotationEditorLayer();
|
});
|
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.dispatchPageRender();
|
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;
|
}
|
}
|
|
;// ./web/generic_scripting.js
|
|
async function docProperties(pdfDocument) {
|
const url = "",
|
baseUrl = "";
|
const {
|
info,
|
metadata,
|
contentDispositionFilename,
|
contentLength
|
} = await pdfDocument.getMetadata();
|
return {
|
...info,
|
baseURL: baseUrl,
|
filesize: contentLength || (await pdfDocument.getDownloadInfo()).length,
|
filename: contentDispositionFilename || getPdfFilenameFromUrl(url),
|
metadata: metadata?.getRaw(),
|
authors: metadata?.get("dc:creator"),
|
numPages: pdfDocument.numPages,
|
URL: url
|
};
|
}
|
class GenericScripting {
|
constructor(sandboxBundleSrc) {
|
this._ready = new Promise((resolve, reject) => {
|
const sandbox = import(
|
/*webpackIgnore: true*/
|
/*@vite-ignore*/
|
sandboxBundleSrc);
|
sandbox.then(pdfjsSandbox => {
|
resolve(pdfjsSandbox.QuickJSSandbox());
|
}).catch(reject);
|
});
|
}
|
async createSandbox(data) {
|
const sandbox = await this._ready;
|
sandbox.create(data);
|
}
|
async dispatchEventInSandbox(event) {
|
const sandbox = await this._ready;
|
setTimeout(() => sandbox.dispatchEvent(event), 0);
|
}
|
async destroySandbox() {
|
const sandbox = await this._ready;
|
sandbox.nukeSandbox();
|
}
|
}
|
|
;// ./web/pdf_scripting_manager.js
|
|
|
class PDFScriptingManager {
|
#closeCapability = null;
|
#destroyCapability = null;
|
#docProperties = null;
|
#eventAbortController = 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);
|
await this.#destroyScripting();
|
return;
|
}
|
const eventBus = this.#eventBus;
|
this.#eventAbortController = new AbortController();
|
const {
|
signal
|
} = this.#eventAbortController;
|
eventBus._on("updatefromsandbox", event => {
|
if (event?.source === window) {
|
this.#updateFromSandbox(event.detail);
|
}
|
}, {
|
signal
|
});
|
eventBus._on("dispatcheventinsandbox", event => {
|
this.#scripting?.dispatchEventInSandbox(event.detail);
|
}, {
|
signal
|
});
|
eventBus._on("pagechanging", ({
|
pageNumber,
|
previous
|
}) => {
|
if (pageNumber === previous) {
|
return;
|
}
|
this.#dispatchPageClose(previous);
|
this.#dispatchPageOpen(pageNumber);
|
}, {
|
signal
|
});
|
eventBus._on("pagerendered", ({
|
pageNumber
|
}) => {
|
if (!this._pageOpenPending.has(pageNumber)) {
|
return;
|
}
|
if (pageNumber !== this.#pdfViewer.currentPageNumber) {
|
return;
|
}
|
this.#dispatchPageOpen(pageNumber);
|
}, {
|
signal
|
});
|
eventBus._on("pagesdestroy", async () => {
|
await this.#dispatchPageClose(this.#pdfViewer.currentPageNumber);
|
await this.#scripting?.dispatchEventInSandbox({
|
id: "doc",
|
name: "WillClose"
|
});
|
this.#closeCapability?.resolve();
|
}, {
|
signal
|
});
|
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
|
}
|
});
|
eventBus.dispatch("sandboxcreated", {
|
source: this
|
});
|
} catch (error) {
|
console.error("setDocument:", error);
|
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 = Promise.withResolvers();
|
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 _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 = Promise.withResolvers();
|
}
|
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 = Promise.withResolvers();
|
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;
|
this.#eventAbortController?.abort();
|
this.#eventAbortController = null;
|
this._pageOpenPending.clear();
|
this._visitedPages.clear();
|
this.#scripting = null;
|
this.#ready = false;
|
this.#destroyCapability?.resolve();
|
}
|
}
|
|
;// ./web/pdf_scripting_manager.component.js
|
|
|
class PDFScriptingManagerComponents extends PDFScriptingManager {
|
constructor(options) {
|
if (!options.externalServices) {
|
window.addEventListener("updatefromsandbox", event => {
|
options.eventBus.dispatch("updatefromsandbox", {
|
source: window,
|
detail: event.detail
|
});
|
});
|
}
|
options.externalServices ||= {
|
createScripting: () => new GenericScripting(options.sandboxBundleSrc)
|
};
|
options.docProperties ||= pdfDocument => docProperties(pdfDocument);
|
super(options);
|
}
|
}
|
|
;// ./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;
|
Object.defineProperty(this, "hasViewer", {
|
value: () => !!this.pdfViewer
|
});
|
}
|
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, ignoreDetailViews = 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;
|
}
|
}
|
if (!ignoreDetailViews) {
|
for (let i = 0; i < numVisible; i++) {
|
const {
|
detailView
|
} = visibleViews[i].view;
|
if (detailView && !this.isViewFinished(detailView)) {
|
return detailView;
|
}
|
}
|
}
|
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;
|
}
|
}
|
|
;// ./web/pdf_viewer.js
|
|
|
|
|
|
|
const DEFAULT_CACHE_SIZE = 10;
|
const PagesCountLimit = {
|
FORCE_SCROLL_MODE_PAGE: 10000,
|
FORCE_LAZY_PAGE_INIT: 5000,
|
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;
|
#editorUndoBar = null;
|
#enableHWA = false;
|
#enableHighlightFloatingButton = false;
|
#enablePermissions = false;
|
#enableUpdatedAddImage = false;
|
#enableNewAltTextWhenAddingImage = false;
|
#enableAutoLinking = true;
|
#eventAbortController = null;
|
#mlManager = null;
|
#scrollTimeoutId = null;
|
#switchAnnotationEditorModeAC = null;
|
#switchAnnotationEditorModeTimeoutId = null;
|
#getAllTextInProgress = false;
|
#hiddenCopyElement = null;
|
#interruptCopyCondition = false;
|
#previousContainerHeight = 0;
|
#resizeObserver = new ResizeObserver(this.#resizeObserverCallback.bind(this));
|
#scrollModePageState = null;
|
#scaleTimeoutId = null;
|
#signatureManager = null;
|
#supportsPinchToZoom = true;
|
#textLayerMode = TextLayerMode.ENABLE;
|
constructor(options) {
|
const viewerVersion = "5.2.133";
|
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;
|
if (this.container?.tagName !== "DIV" || this.viewer?.tagName !== "DIV") {
|
throw new Error("Invalid `container` and/or `viewer` option.");
|
}
|
if (this.container.offsetParent && getComputedStyle(this.container).position !== "absolute") {
|
throw new Error("The `container` must be absolutely positioned.");
|
}
|
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;
|
this.#signatureManager = options.signatureManager || null;
|
this.#editorUndoBar = options.editorUndoBar || 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.#enableHighlightFloatingButton = options.enableHighlightFloatingButton === true;
|
this.#enableUpdatedAddImage = options.enableUpdatedAddImage === true;
|
this.#enableNewAltTextWhenAddingImage = options.enableNewAltTextWhenAddingImage === true;
|
this.imageResourcesPath = options.imageResourcesPath || "";
|
this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
|
this.removePageBorders = options.removePageBorders || false;
|
this.maxCanvasPixels = options.maxCanvasPixels;
|
this.maxCanvasDim = options.maxCanvasDim;
|
this.enableDetailCanvas = options.enableDetailCanvas ?? true;
|
this.l10n = options.l10n;
|
this.l10n ||= new genericl10n_GenericL10n();
|
this.#enablePermissions = options.enablePermissions || false;
|
this.pageColors = options.pageColors || null;
|
this.#mlManager = options.mlManager || null;
|
this.#enableHWA = options.enableHWA || false;
|
this.#supportsPinchToZoom = options.supportsPinchToZoom !== false;
|
this.#enableAutoLinking = options.enableAutoLinking !== false;
|
this.defaultRenderingQueue = !options.renderingQueue;
|
if (this.defaultRenderingQueue) {
|
this.renderingQueue = new PDFRenderingQueue();
|
this.renderingQueue.setViewer(this);
|
} else {
|
this.renderingQueue = options.renderingQueue;
|
}
|
const {
|
abortSignal
|
} = options;
|
abortSignal?.addEventListener("abort", () => {
|
this.#resizeObserver.disconnect();
|
this.#resizeObserver = null;
|
}, {
|
once: true
|
});
|
this.scroll = watchScroll(this.container, this._scrollUpdate.bind(this), abortSignal);
|
this.presentationModeState = PresentationModeState.UNKNOWN;
|
this._resetView();
|
if (this.removePageBorders) {
|
this.viewer.classList.add("removePageBorders");
|
}
|
this.#updateContainerHeightCss();
|
this.eventBus._on("thumbnailrendered", ({
|
pageNumber,
|
pdfPage
|
}) => {
|
const pageView = this._pages[pageNumber - 1];
|
if (!this.#buffer.has(pageView)) {
|
pdfPage?.cleanup();
|
}
|
});
|
if (!options.l10n) {
|
this.l10n.translate(this.container);
|
}
|
}
|
get pagesCount() {
|
return this._pages.length;
|
}
|
getPageView(index) {
|
return this._pages[index];
|
}
|
getCachedPageViews() {
|
return new Set(this.#buffer);
|
}
|
get pageViewsReady() {
|
return 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(signal) {
|
if (document.visibilityState === "hidden" || !this.container.offsetParent || this._getVisiblePages().views.length === 0) {
|
return;
|
}
|
const hiddenCapability = Promise.withResolvers(),
|
ac = new AbortController();
|
document.addEventListener("visibilitychange", () => {
|
if (document.visibilityState === "hidden") {
|
hiddenCapability.resolve();
|
}
|
}, {
|
signal: AbortSignal.any([signal, ac.signal])
|
});
|
await Promise.race([this._onePageRenderedCapability.promise, hiddenCapability.promise]);
|
ac.abort();
|
}
|
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) {
|
stopEvent(event);
|
return;
|
}
|
this.#getAllTextInProgress = true;
|
const {
|
classList
|
} = this.viewer;
|
classList.add("copyAll");
|
const ac = new AbortController();
|
window.addEventListener("keydown", ev => this.#interruptCopyCondition = ev.key === "Escape", {
|
signal: ac.signal
|
});
|
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;
|
ac.abort();
|
classList.remove("copyAll");
|
});
|
stopEvent(event);
|
}
|
}
|
setDocument(pdfDocument) {
|
if (this.pdfDocument) {
|
this.eventBus.dispatch("pagesdestroy", {
|
source: this
|
});
|
this._cancelRendering();
|
this._resetView();
|
this.findController?.setDocument(null);
|
this._scriptingManager?.setDocument(null);
|
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({
|
intent: "display"
|
});
|
const permissionsPromise = this.#enablePermissions ? pdfDocument.getPermissions() : Promise.resolve();
|
const {
|
eventBus,
|
pageColors,
|
viewer
|
} = this;
|
this.#eventAbortController = new AbortController();
|
const {
|
signal
|
} = this.#eventAbortController;
|
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;
|
eventBus.dispatch("scrollmodechanged", {
|
source: this,
|
mode
|
});
|
}
|
this._pagesCapability.promise.then(() => {
|
eventBus.dispatch("pagesloaded", {
|
source: this,
|
pagesCount
|
});
|
}, () => {});
|
const onBeforeDraw = evt => {
|
const pageView = this._pages[evt.pageNumber - 1];
|
if (!pageView) {
|
return;
|
}
|
this.#buffer.push(pageView);
|
};
|
eventBus._on("pagerender", onBeforeDraw, {
|
signal
|
});
|
const onAfterDraw = evt => {
|
if (evt.cssTransform || evt.isDetailView) {
|
return;
|
}
|
this._onePageRenderedCapability.resolve({
|
timestamp: evt.timestamp
|
});
|
eventBus._off("pagerendered", onAfterDraw);
|
};
|
eventBus._on("pagerendered", onAfterDraw, {
|
signal
|
});
|
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";
|
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, viewer, this.#altTextManager, this.#signatureManager, eventBus, pdfDocument, pageColors, this.#annotationEditorHighlightColors, this.#enableHighlightFloatingButton, this.#enableUpdatedAddImage, this.#enableNewAltTextWhenAddingImage, this.#mlManager, this.#editorUndoBar, this.#supportsPinchToZoom);
|
eventBus.dispatch("annotationeditoruimanager", {
|
source: this,
|
uiManager: this.#annotationEditorUIManager
|
});
|
if (mode !== AnnotationEditorType.NONE) {
|
this.#preloadEditingData(mode);
|
this.#annotationEditorUIManager.updateMode(mode);
|
}
|
} else {
|
console.error(`Invalid AnnotationEditor mode: ${mode}`);
|
}
|
}
|
const viewerElement = this._scrollMode === ScrollMode.PAGE ? null : viewer;
|
const scale = this.currentScale;
|
const viewport = firstPdfPage.getViewport({
|
scale: scale * PixelsPerInch.PDF_TO_CSS_UNITS
|
});
|
viewer.style.setProperty("--scale-factor", viewport.scale);
|
if (pageColors?.background) {
|
viewer.style.setProperty("--page-bg-color", pageColors.background);
|
}
|
if (pageColors?.foreground === "CanvasText" || pageColors?.background === "Canvas") {
|
viewer.style.setProperty("--hcm-highlight-filter", pdfDocument.filterFactory.addHighlightHCMFilter("highlight", "CanvasText", "Canvas", "HighlightText", "Highlight"));
|
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,
|
id: pageNum,
|
scale,
|
defaultViewport: viewport.clone(),
|
optionalContentConfigPromise,
|
renderingQueue: this.renderingQueue,
|
textLayerMode,
|
annotationMode,
|
imageResourcesPath: this.imageResourcesPath,
|
maxCanvasPixels: this.maxCanvasPixels,
|
maxCanvasDim: this.maxCanvasDim,
|
enableDetailCanvas: this.enableDetailCanvas,
|
pageColors,
|
l10n: this.l10n,
|
layerProperties: this._layerProperties,
|
enableHWA: this.#enableHWA,
|
enableAutoLinking: this.#enableAutoLinking
|
});
|
this._pages.push(pageView);
|
}
|
this._pages[0]?.setPdfPage(firstPdfPage);
|
if (this._scrollMode === ScrollMode.PAGE) {
|
this.#ensurePageViewVisible();
|
} else if (this._spreadMode !== SpreadMode.NONE) {
|
this._updateSpreadMode();
|
}
|
this.#onePageRenderedOrForceFetch(signal).then(async () => {
|
if (pdfDocument !== this.pdfDocument) {
|
return;
|
}
|
this.findController?.setDocument(pdfDocument);
|
this._scriptingManager?.setDocument(pdfDocument);
|
if (this.#hiddenCopyElement) {
|
document.addEventListener("copy", this.#copyCallback.bind(this, textLayerMode), {
|
signal
|
});
|
}
|
if (this.#annotationEditorUIManager) {
|
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);
|
}
|
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;
|
}
|
}
|
});
|
eventBus.dispatch("pagesinit", {
|
source: this
|
});
|
pdfDocument.getMetadata().then(({
|
info
|
}) => {
|
if (pdfDocument !== this.pdfDocument) {
|
return;
|
}
|
if (info.Language) {
|
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 = Promise.withResolvers();
|
this._onePageRenderedCapability = Promise.withResolvers();
|
this._pagesCapability = Promise.withResolvers();
|
this._scrollMode = ScrollMode.VERTICAL;
|
this._previousScrollMode = ScrollMode.UNKNOWN;
|
this._spreadMode = SpreadMode.NONE;
|
this.#scrollModePageState = {
|
previousPageNumber: 1,
|
scrollDown: true,
|
pages: []
|
};
|
this.#eventAbortController?.abort();
|
this.#eventAbortController = null;
|
this.viewer.textContent = "";
|
this._updateScrollMode();
|
this.viewer.removeAttribute("lang");
|
this.#hiddenCopyElement?.remove();
|
this.#hiddenCopyElement = null;
|
this.#cleanupTimeouts();
|
this.#cleanupSwitchAnnotationEditorMode();
|
}
|
#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;
|
}
|
if (this.#scrollTimeoutId) {
|
clearTimeout(this.#scrollTimeoutId);
|
}
|
this.#scrollTimeoutId = setTimeout(() => {
|
this.#scrollTimeoutId = null;
|
this.update();
|
}, 100);
|
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,
|
origin = null
|
}) {
|
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);
|
}
|
const previousScale = this._currentScale;
|
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
|
});
|
if (Array.isArray(origin)) {
|
const scaleDiff = newScale / previousScale - 1;
|
const [top, left] = this.containerTopLeft;
|
this.container.scrollLeft += (origin[0] - left) * scaleDiff;
|
this.container.scrollTop += (origin[1] - top) * scaleDiff;
|
}
|
}
|
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.removePageBorders) {
|
hPadding = vPadding = 0;
|
} 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: "${pageNumber}" is not a valid pageNumber parameter.`);
|
return;
|
}
|
if (this.isInPresentationMode || !destArray) {
|
this._setCurrentPageNumber(pageNumber, true);
|
return;
|
}
|
let x = 0,
|
y = 0;
|
let width = 0,
|
height = 0,
|
widthScale,
|
heightScale;
|
const changeOrientation = pageView.rotation % 180 !== 0;
|
const pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / PixelsPerInch.PDF_TO_CSS_UNITS;
|
const pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / PixelsPerInch.PDF_TO_CSS_UNITS;
|
let scale = 0;
|
switch (destArray[1].name) {
|
case "XYZ":
|
x = destArray[2];
|
y = destArray[3];
|
scale = destArray[4];
|
x = x !== null ? x : 0;
|
y = y !== null ? y : pageHeight;
|
break;
|
case "Fit":
|
case "FitB":
|
scale = "page-fit";
|
break;
|
case "FitH":
|
case "FitBH":
|
y = destArray[2];
|
scale = "page-width";
|
if (y === null && this._location) {
|
x = this._location.left;
|
y = this._location.top;
|
} else if (typeof y !== "number" || y < 0) {
|
y = pageHeight;
|
}
|
break;
|
case "FitV":
|
case "FitBV":
|
x = destArray[2];
|
width = pageWidth;
|
height = pageHeight;
|
scale = "page-height";
|
break;
|
case "FitR":
|
x = destArray[2];
|
y = destArray[3];
|
width = destArray[4] - x;
|
height = destArray[5] - y;
|
let hPadding = SCROLLBAR_PADDING,
|
vPadding = VERTICAL_PADDING;
|
if (this.removePageBorders) {
|
hPadding = vPadding = 0;
|
}
|
widthScale = (this.container.clientWidth - hPadding) / width / PixelsPerInch.PDF_TO_CSS_UNITS;
|
heightScale = (this.container.clientHeight - vPadding) / height / PixelsPerInch.PDF_TO_CSS_UNITS;
|
scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
|
break;
|
default:
|
console.error(`scrollPageIntoView: "${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);
|
for (const {
|
view,
|
visibleArea
|
} of visiblePages) {
|
view.updateVisibleArea(visibleArea);
|
}
|
for (const view of this.#buffer) {
|
if (!visible.ids.has(view.id)) {
|
view.updateVisibleArea(null);
|
}
|
}
|
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
|
});
|
}
|
#switchToEditAnnotationMode() {
|
const visible = this._getVisiblePages();
|
const pagesToRefresh = [];
|
const {
|
ids,
|
views
|
} = visible;
|
for (const page of views) {
|
const {
|
view
|
} = page;
|
if (!view.hasEditableAnnotations()) {
|
ids.delete(view.id);
|
continue;
|
}
|
pagesToRefresh.push(page);
|
}
|
if (pagesToRefresh.length === 0) {
|
return null;
|
}
|
this.renderingQueue.renderHighestPriority({
|
first: pagesToRefresh[0],
|
last: pagesToRefresh.at(-1),
|
views: pagesToRefresh,
|
ids
|
});
|
return ids;
|
}
|
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);
|
}
|
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 ignoreDetailViews = this.#scaleTimeoutId !== null || this.#scrollTimeoutId !== null && visiblePages.views.some(page => page.detailView?.renderingCancelled);
|
const pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, scrollAhead, preRenderExtra, ignoreDetailViews);
|
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({
|
intent: "display"
|
});
|
}
|
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) {
|
if (this._scrollMode === mode) {
|
return;
|
}
|
if (!isValidScrollMode(mode)) {
|
throw new Error(`Invalid scroll mode: ${mode}`);
|
}
|
if (this.pagesCount > PagesCountLimit.FORCE_SCROLL_MODE_PAGE) {
|
return;
|
}
|
this._previousScrollMode = this._scrollMode;
|
this._scrollMode = mode;
|
this.eventBus.dispatch("scrollmodechanged", {
|
source: this,
|
mode
|
});
|
this._updateScrollMode(this._currentPageNumber);
|
}
|
_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) {
|
if (this._spreadMode === mode) {
|
return;
|
}
|
if (!isValidSpreadMode(mode)) {
|
throw new Error(`Invalid spread mode: ${mode}`);
|
}
|
this._spreadMode = mode;
|
this.eventBus.dispatch("spreadmodechanged", {
|
source: this,
|
mode
|
});
|
this._updateSpreadMode(this._currentPageNumber);
|
}
|
_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;
|
}
|
updateScale({
|
drawingDelay,
|
scaleFactor = null,
|
steps = null,
|
origin
|
}) {
|
if (steps === null && scaleFactor === null) {
|
throw new Error("Invalid updateScale options: either `steps` or `scaleFactor` must be provided.");
|
}
|
if (!this.pdfDocument) {
|
return;
|
}
|
let newScale = this._currentScale;
|
if (scaleFactor > 0 && scaleFactor !== 1) {
|
newScale = Math.round(newScale * scaleFactor * 100) / 100;
|
} else if (steps) {
|
const delta = steps > 0 ? DEFAULT_SCALE_DELTA : 1 / DEFAULT_SCALE_DELTA;
|
const round = steps > 0 ? Math.ceil : Math.floor;
|
steps = Math.abs(steps);
|
do {
|
newScale = round((newScale * delta).toFixed(2) * 10) / 10;
|
} while (--steps > 0);
|
}
|
newScale = MathClamp(newScale, MIN_SCALE, MAX_SCALE);
|
this.#setScale(newScale, {
|
noScroll: false,
|
drawingDelay,
|
origin
|
});
|
}
|
increaseScale(options = {}) {
|
this.updateScale({
|
...options,
|
steps: options.steps ?? 1
|
});
|
}
|
decreaseScale(options = {}) {
|
this.updateScale({
|
...options,
|
steps: -(options.steps ?? 1)
|
});
|
}
|
#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];
|
}
|
#cleanupTimeouts() {
|
if (this.#scaleTimeoutId !== null) {
|
clearTimeout(this.#scaleTimeoutId);
|
this.#scaleTimeoutId = null;
|
}
|
if (this.#scrollTimeoutId !== null) {
|
clearTimeout(this.#scrollTimeoutId);
|
this.#scrollTimeoutId = null;
|
}
|
}
|
#cleanupSwitchAnnotationEditorMode() {
|
this.#switchAnnotationEditorModeAC?.abort();
|
this.#switchAnnotationEditorModeAC = null;
|
if (this.#switchAnnotationEditorModeTimeoutId !== null) {
|
clearTimeout(this.#switchAnnotationEditorModeTimeoutId);
|
this.#switchAnnotationEditorModeTimeoutId = null;
|
}
|
}
|
#preloadEditingData(mode) {
|
switch (mode) {
|
case AnnotationEditorType.STAMP:
|
this.#mlManager?.loadModel("altText");
|
break;
|
case AnnotationEditorType.SIGNATURE:
|
this.#signatureManager?.loadSignatures();
|
break;
|
}
|
}
|
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.#preloadEditingData(mode);
|
const {
|
eventBus,
|
pdfDocument
|
} = this;
|
const updater = async () => {
|
this.#cleanupSwitchAnnotationEditorMode();
|
this.#annotationEditorMode = mode;
|
await this.#annotationEditorUIManager.updateMode(mode, editId, isFromKeyboard);
|
if (mode !== this.#annotationEditorMode || pdfDocument !== this.pdfDocument) {
|
return;
|
}
|
eventBus.dispatch("annotationeditormodechanged", {
|
source: this,
|
mode
|
});
|
};
|
if (mode === AnnotationEditorType.NONE || this.#annotationEditorMode === AnnotationEditorType.NONE) {
|
const isEditing = mode !== AnnotationEditorType.NONE;
|
if (!isEditing) {
|
this.pdfDocument.annotationStorage.resetModifiedIds();
|
}
|
for (const pageView of this._pages) {
|
pageView.toggleEditingMode(isEditing);
|
}
|
const idsToRefresh = this.#switchToEditAnnotationMode();
|
if (isEditing && idsToRefresh) {
|
this.#cleanupSwitchAnnotationEditorMode();
|
this.#switchAnnotationEditorModeAC = new AbortController();
|
const signal = AbortSignal.any([this.#eventAbortController.signal, this.#switchAnnotationEditorModeAC.signal]);
|
eventBus._on("pagerendered", ({
|
pageNumber
|
}) => {
|
idsToRefresh.delete(pageNumber);
|
if (idsToRefresh.size === 0) {
|
this.#switchAnnotationEditorModeTimeoutId = setTimeout(updater, 0);
|
}
|
}, {
|
signal
|
});
|
return;
|
}
|
}
|
updater();
|
}
|
refresh(noUpdate = false, updateArgs = Object.create(null)) {
|
if (!this.pdfDocument) {
|
return;
|
}
|
for (const pageView of this._pages) {
|
pageView.update(updateArgs);
|
}
|
this.#cleanupTimeouts();
|
if (!noUpdate) {
|
this.update();
|
}
|
}
|
}
|
|
;// ./web/pdf_single_page_viewer.js
|
|
|
class PDFSinglePageViewer extends PDFViewer {
|
_resetView() {
|
super._resetView();
|
this._scrollMode = ScrollMode.PAGE;
|
this._spreadMode = SpreadMode.NONE;
|
}
|
set scrollMode(mode) {}
|
_updateScrollMode() {}
|
set spreadMode(mode) {}
|
_updateSpreadMode() {}
|
}
|
|
;// ./web/pdf_viewer.component.js
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
const pdfjsVersion = "5.2.133";
|
const pdfjsBuild = "4f7761353";
|
globalThis.pdfjsViewer = {
|
AnnotationLayerBuilder: AnnotationLayerBuilder,
|
DownloadManager: DownloadManager,
|
EventBus: EventBus,
|
FindState: FindState,
|
GenericL10n: genericl10n_GenericL10n,
|
LinkTarget: LinkTarget,
|
parseQueryString: parseQueryString,
|
PDFFindController: PDFFindController,
|
PDFHistory: PDFHistory,
|
PDFLinkService: PDFLinkService,
|
PDFPageView: PDFPageView,
|
PDFScriptingManager: PDFScriptingManagerComponents,
|
PDFSinglePageViewer: PDFSinglePageViewer,
|
PDFViewer: PDFViewer,
|
ProgressBar: ProgressBar,
|
RenderingStates: RenderingStates,
|
ScrollMode: ScrollMode,
|
SimpleLinkService: SimpleLinkService,
|
SpreadMode: SpreadMode,
|
StructTreeLayerBuilder: StructTreeLayerBuilder,
|
TextLayerBuilder: TextLayerBuilder,
|
XfaLayerBuilder: XfaLayerBuilder
|
};
|
|
export { AnnotationLayerBuilder, DownloadManager, EventBus, FindState, genericl10n_GenericL10n as GenericL10n, LinkTarget, PDFFindController, PDFHistory, PDFLinkService, PDFPageView, PDFScriptingManagerComponents as PDFScriptingManager, PDFSinglePageViewer, PDFViewer, ProgressBar, RenderingStates, ScrollMode, SimpleLinkService, SpreadMode, StructTreeLayerBuilder, TextLayerBuilder, XfaLayerBuilder, parseQueryString };
|
|
//# sourceMappingURL=pdf_viewer.mjs.map
|
