310 lines
9.4 KiB
JavaScript
310 lines
9.4 KiB
JavaScript
/**
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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 2020 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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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.PDFDocumentProperties = void 0;
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var _pdf = require("../pdf");
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var _ui_utils = require("./ui_utils.js");
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const DEFAULT_FIELD_CONTENT = "-";
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const NON_METRIC_LOCALES = ["en-us", "en-lr", "my"];
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const US_PAGE_NAMES = {
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"8.5x11": "Letter",
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"8.5x14": "Legal"
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};
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const METRIC_PAGE_NAMES = {
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"297x420": "A3",
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"210x297": "A4"
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};
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function getPageName(size, isPortrait, pageNames) {
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const width = isPortrait ? size.width : size.height;
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const height = isPortrait ? size.height : size.width;
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return pageNames[`${width}x${height}`];
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}
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class PDFDocumentProperties {
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constructor({
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overlayName,
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fields,
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container,
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closeButton
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}, overlayManager, eventBus, l10n = _ui_utils.NullL10n) {
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this.overlayName = overlayName;
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this.fields = fields;
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this.container = container;
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this.overlayManager = overlayManager;
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this.l10n = l10n;
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this._reset();
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closeButton.addEventListener("click", this.close.bind(this));
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this.overlayManager.register(this.overlayName, this.container, this.close.bind(this));
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eventBus._on("pagechanging", evt => {
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this._currentPageNumber = evt.pageNumber;
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});
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eventBus._on("rotationchanging", evt => {
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this._pagesRotation = evt.pagesRotation;
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});
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this._isNonMetricLocale = true;
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l10n.getLanguage().then(locale => {
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this._isNonMetricLocale = NON_METRIC_LOCALES.includes(locale);
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});
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}
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open() {
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const freezeFieldData = data => {
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Object.defineProperty(this, "fieldData", {
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value: Object.freeze(data),
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writable: false,
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enumerable: true,
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configurable: true
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});
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};
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Promise.all([this.overlayManager.open(this.overlayName), this._dataAvailableCapability.promise]).then(() => {
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const currentPageNumber = this._currentPageNumber;
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const pagesRotation = this._pagesRotation;
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if (this.fieldData && currentPageNumber === this.fieldData._currentPageNumber && pagesRotation === this.fieldData._pagesRotation) {
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this._updateUI();
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return;
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}
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this.pdfDocument.getMetadata().then(({
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info,
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metadata,
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contentDispositionFilename
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}) => {
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return Promise.all([info, metadata, contentDispositionFilename || (0, _ui_utils.getPDFFileNameFromURL)(this.url), this._parseFileSize(this.maybeFileSize), this._parseDate(info.CreationDate), this._parseDate(info.ModDate), this.pdfDocument.getPage(currentPageNumber).then(pdfPage => {
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return this._parsePageSize((0, _ui_utils.getPageSizeInches)(pdfPage), pagesRotation);
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}), this._parseLinearization(info.IsLinearized)]);
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}).then(([info, metadata, fileName, fileSize, creationDate, modDate, pageSize, isLinearized]) => {
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freezeFieldData({
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fileName,
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fileSize,
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title: info.Title,
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author: info.Author,
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subject: info.Subject,
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keywords: info.Keywords,
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creationDate,
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modificationDate: modDate,
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creator: info.Creator,
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producer: info.Producer,
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version: info.PDFFormatVersion,
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pageCount: this.pdfDocument.numPages,
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pageSize,
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linearized: isLinearized,
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_currentPageNumber: currentPageNumber,
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_pagesRotation: pagesRotation
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});
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this._updateUI();
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return this.pdfDocument.getDownloadInfo();
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}).then(({
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length
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}) => {
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this.maybeFileSize = length;
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return this._parseFileSize(length);
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}).then(fileSize => {
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if (fileSize === this.fieldData.fileSize) {
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return;
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}
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const data = Object.assign(Object.create(null), this.fieldData);
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data.fileSize = fileSize;
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freezeFieldData(data);
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this._updateUI();
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});
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});
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}
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close() {
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this.overlayManager.close(this.overlayName);
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}
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setDocument(pdfDocument, url = null) {
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if (this.pdfDocument) {
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this._reset();
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this._updateUI(true);
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}
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if (!pdfDocument) {
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return;
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}
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this.pdfDocument = pdfDocument;
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this.url = url;
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this._dataAvailableCapability.resolve();
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}
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setFileSize(fileSize) {
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if (Number.isInteger(fileSize) && fileSize > 0) {
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this.maybeFileSize = fileSize;
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}
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}
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_reset() {
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this.pdfDocument = null;
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this.url = null;
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this.maybeFileSize = 0;
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delete this.fieldData;
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this._dataAvailableCapability = (0, _pdf.createPromiseCapability)();
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this._currentPageNumber = 1;
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this._pagesRotation = 0;
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}
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_updateUI(reset = false) {
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if (reset || !this.fieldData) {
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for (const id in this.fields) {
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this.fields[id].textContent = DEFAULT_FIELD_CONTENT;
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}
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return;
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}
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if (this.overlayManager.active !== this.overlayName) {
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return;
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}
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for (const id in this.fields) {
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const content = this.fieldData[id];
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this.fields[id].textContent = content || content === 0 ? content : DEFAULT_FIELD_CONTENT;
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}
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}
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async _parseFileSize(fileSize = 0) {
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const kb = fileSize / 1024;
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if (!kb) {
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return undefined;
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} else if (kb < 1024) {
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return this.l10n.get("document_properties_kb", {
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size_kb: (+kb.toPrecision(3)).toLocaleString(),
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size_b: fileSize.toLocaleString()
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}, "{{size_kb}} KB ({{size_b}} bytes)");
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}
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return this.l10n.get("document_properties_mb", {
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size_mb: (+(kb / 1024).toPrecision(3)).toLocaleString(),
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size_b: fileSize.toLocaleString()
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}, "{{size_mb}} MB ({{size_b}} bytes)");
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}
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async _parsePageSize(pageSizeInches, pagesRotation) {
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if (!pageSizeInches) {
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return undefined;
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}
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if (pagesRotation % 180 !== 0) {
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pageSizeInches = {
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width: pageSizeInches.height,
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height: pageSizeInches.width
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};
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}
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const isPortrait = (0, _ui_utils.isPortraitOrientation)(pageSizeInches);
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let sizeInches = {
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width: Math.round(pageSizeInches.width * 100) / 100,
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height: Math.round(pageSizeInches.height * 100) / 100
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};
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let sizeMillimeters = {
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width: Math.round(pageSizeInches.width * 25.4 * 10) / 10,
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height: Math.round(pageSizeInches.height * 25.4 * 10) / 10
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};
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let pageName = null;
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let rawName = getPageName(sizeInches, isPortrait, US_PAGE_NAMES) || getPageName(sizeMillimeters, isPortrait, METRIC_PAGE_NAMES);
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if (!rawName && !(Number.isInteger(sizeMillimeters.width) && Number.isInteger(sizeMillimeters.height))) {
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const exactMillimeters = {
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width: pageSizeInches.width * 25.4,
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height: pageSizeInches.height * 25.4
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};
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const intMillimeters = {
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width: Math.round(sizeMillimeters.width),
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height: Math.round(sizeMillimeters.height)
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};
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if (Math.abs(exactMillimeters.width - intMillimeters.width) < 0.1 && Math.abs(exactMillimeters.height - intMillimeters.height) < 0.1) {
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rawName = getPageName(intMillimeters, isPortrait, METRIC_PAGE_NAMES);
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if (rawName) {
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sizeInches = {
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width: Math.round(intMillimeters.width / 25.4 * 100) / 100,
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height: Math.round(intMillimeters.height / 25.4 * 100) / 100
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};
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sizeMillimeters = intMillimeters;
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}
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}
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}
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if (rawName) {
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pageName = this.l10n.get("document_properties_page_size_name_" + rawName.toLowerCase(), null, rawName);
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}
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return Promise.all([this._isNonMetricLocale ? sizeInches : sizeMillimeters, this.l10n.get("document_properties_page_size_unit_" + (this._isNonMetricLocale ? "inches" : "millimeters"), null, this._isNonMetricLocale ? "in" : "mm"), pageName, this.l10n.get("document_properties_page_size_orientation_" + (isPortrait ? "portrait" : "landscape"), null, isPortrait ? "portrait" : "landscape")]).then(([{
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width,
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height
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}, unit, name, orientation]) => {
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return this.l10n.get("document_properties_page_size_dimension_" + (name ? "name_" : "") + "string", {
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width: width.toLocaleString(),
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height: height.toLocaleString(),
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unit,
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name,
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orientation
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}, "{{width}} × {{height}} {{unit}} (" + (name ? "{{name}}, " : "") + "{{orientation}})");
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});
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}
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async _parseDate(inputDate) {
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const dateObject = _pdf.PDFDateString.toDateObject(inputDate);
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if (!dateObject) {
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return undefined;
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}
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return this.l10n.get("document_properties_date_string", {
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date: dateObject.toLocaleDateString(),
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time: dateObject.toLocaleTimeString()
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}, "{{date}}, {{time}}");
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}
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_parseLinearization(isLinearized) {
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return this.l10n.get("document_properties_linearized_" + (isLinearized ? "yes" : "no"), null, isLinearized ? "Yes" : "No");
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}
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}
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exports.PDFDocumentProperties = PDFDocumentProperties; |