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@@ -0,0 +1,705 @@
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/* *
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*
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* Client side exporting module
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*
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* (c) 2015 Torstein Honsi / Oystein Moseng
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*
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* License: www.highcharts.com/license
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*
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* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
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*
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* */
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/* global MSBlobBuilder */
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'use strict';
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import AST from '../../Core/Renderer/HTML/AST.js';
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import Chart from '../../Core/Chart/Chart.js';
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import D from '../../Core/DefaultOptions.js';
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var defaultOptions = D.defaultOptions;
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import DownloadURL from '../DownloadURL.js';
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var downloadURL = DownloadURL.downloadURL;
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import Exporting from '../Exporting/Exporting.js';
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import H from '../../Core/Globals.js';
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var win = H.win, doc = H.doc;
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import HU from '../../Core/HttpUtilities.js';
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var ajax = HU.ajax;
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import OfflineExportingDefaults from './OfflineExportingDefaults.js';
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import U from '../../Core/Utilities.js';
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var addEvent = U.addEvent, error = U.error, extend = U.extend, fireEvent = U.fireEvent, pick = U.pick, merge = U.merge;
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AST.allowedAttributes.push('data-z-index', 'fill-opacity', 'rx', 'ry', 'stroke-dasharray', 'stroke-linejoin', 'text-anchor', 'transform', 'version', 'viewBox', 'visibility', 'xmlns', 'xmlns:xlink');
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AST.allowedTags.push('desc', 'clippath', 'g');
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/* *
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*
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* Constants
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*
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* */
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var composedClasses = [];
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/* *
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*
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* Composition
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*
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* */
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var OfflineExporting;
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(function (OfflineExporting) {
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/* *
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*
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* Declarations
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*
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* */
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/* *
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*
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* Constants
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*
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* */
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// Dummy object so we can reuse our canvas-tools.js without errors
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OfflineExporting.CanVGRenderer = {}, OfflineExporting.domurl = win.URL || win.webkitURL || win,
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// Milliseconds to defer image load event handlers to offset IE bug
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OfflineExporting.loadEventDeferDelay = H.isMS ? 150 : 0;
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/* *
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*
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* Functions
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*
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* */
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/* eslint-disable valid-jsdoc */
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/**
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* Extends OfflineExporting with Chart.
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* @private
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*/
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function compose(ChartClass) {
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if (composedClasses.indexOf(ChartClass) === -1) {
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composedClasses.push(ChartClass);
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var chartProto = ChartClass.prototype;
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chartProto.getSVGForLocalExport = getSVGForLocalExport;
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chartProto.exportChartLocal = exportChartLocal;
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// Extend the default options to use the local exporter logic
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merge(true, defaultOptions.exporting, OfflineExportingDefaults);
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}
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return ChartClass;
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}
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OfflineExporting.compose = compose;
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/* eslint-disable valid-jsdoc */
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/**
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* Get data URL to an image of an SVG and call download on it options
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* object:
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* - **filename:** Name of resulting downloaded file without extension.
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* Default is `chart`.
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*
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* - **type:** File type of resulting download. Default is `image/png`.
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*
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* - **scale:** Scaling factor of downloaded image compared to source.
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* Default is `1`.
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*
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* - **libURL:** URL pointing to location of dependency scripts to download
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* on demand. Default is the exporting.libURL option of the global
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* Highcharts options pointing to our server.
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*
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* @function Highcharts.downloadSVGLocal
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*
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* @param {string} svg
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* The generated SVG
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*
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* @param {Highcharts.ExportingOptions} options
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* The exporting options
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*
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* @param {Function} failCallback
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* The callback function in case of errors
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*
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* @param {Function} [successCallback]
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* The callback function in case of success
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*
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*/
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function downloadSVGLocal(svg, options, failCallback, successCallback) {
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var dummySVGContainer = doc.createElement('div'), imageType = options.type || 'image/png', filename = ((options.filename || 'chart') +
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'.' +
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(imageType === 'image/svg+xml' ?
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'svg' : imageType.split('/')[1])), scale = options.scale || 1;
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var svgurl, blob, finallyHandler, libURL = (options.libURL || defaultOptions.exporting.libURL), objectURLRevoke = true, pdfFont = options.pdfFont;
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// Allow libURL to end with or without fordward slash
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libURL = libURL.slice(-1) !== '/' ? libURL + '/' : libURL;
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/*
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* Detect if we need to load TTF fonts for the PDF, then load them and
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* proceed.
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*
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* @private
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*/
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var loadPdfFonts = function (svgElement, callback) {
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var hasNonASCII = function (s) { return (
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// eslint-disable-next-line no-control-regex
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/[^\u0000-\u007F\u200B]+/.test(s)); };
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// Register an event in order to add the font once jsPDF is
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// initialized
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var addFont = function (variant, base64) {
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win.jspdf.jsPDF.API.events.push([
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'initialized',
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function () {
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this.addFileToVFS(variant, base64);
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this.addFont(variant, 'HighchartsFont', variant);
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if (!this.getFontList().HighchartsFont) {
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this.setFont('HighchartsFont');
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}
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}
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]);
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};
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// If there are no non-ASCII characters in the SVG, do not use
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// bother downloading the font files
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if (pdfFont && !hasNonASCII(svgElement.textContent || '')) {
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pdfFont = void 0;
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}
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// Add new font if the URL is declared, #6417.
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var variants = ['normal', 'italic', 'bold', 'bolditalic'];
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// Shift the first element off the variants and add as a font.
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// Then asynchronously trigger the next variant until calling the
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// callback when the variants are empty.
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var normalBase64;
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var shiftAndLoadVariant = function () {
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var variant = variants.shift();
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// All variants shifted and possibly loaded, proceed
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if (!variant) {
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return callback();
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}
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var url = pdfFont && pdfFont[variant];
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if (url) {
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ajax({
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url: url,
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responseType: 'blob',
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success: function (data, xhr) {
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var reader = new FileReader();
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reader.onloadend = function () {
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if (typeof this.result === 'string') {
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var base64 = this.result.split(',')[1];
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addFont(variant, base64);
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if (variant === 'normal') {
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normalBase64 = base64;
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}
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}
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shiftAndLoadVariant();
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};
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reader.readAsDataURL(xhr.response);
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},
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error: shiftAndLoadVariant
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});
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}
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else {
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// For other variants, fall back to normal text weight/style
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if (normalBase64) {
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addFont(variant, normalBase64);
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}
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shiftAndLoadVariant();
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}
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};
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shiftAndLoadVariant();
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};
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/*
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* @private
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*/
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var downloadPDF = function () {
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AST.setElementHTML(dummySVGContainer, svg);
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var textElements = dummySVGContainer.getElementsByTagName('text'),
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// Copy style property to element from parents if it's not
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// there. Searches up hierarchy until it finds prop, or hits the
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// chart container.
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setStylePropertyFromParents = function (el, propName) {
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var curParent = el;
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while (curParent && curParent !== dummySVGContainer) {
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if (curParent.style[propName]) {
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el.style[propName] =
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curParent.style[propName];
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break;
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}
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curParent = curParent.parentNode;
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}
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};
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var titleElements;
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// Workaround for the text styling. Making sure it does pick up
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// settings for parent elements.
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[].forEach.call(textElements, function (el) {
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// Workaround for the text styling. making sure it does pick up
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// the root element
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['font-family', 'font-size'].forEach(function (property) {
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setStylePropertyFromParents(el, property);
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});
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el.style.fontFamily = pdfFont && pdfFont.normal ?
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// Custom PDF font
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'HighchartsFont' :
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// Generic font (serif, sans-serif etc)
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String(el.style.fontFamily &&
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el.style.fontFamily.split(' ').splice(-1));
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// Workaround for plotband with width, removing title from text
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// nodes
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titleElements = el.getElementsByTagName('title');
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[].forEach.call(titleElements, function (titleElement) {
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el.removeChild(titleElement);
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});
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});
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var svgNode = dummySVGContainer.querySelector('svg');
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if (svgNode) {
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loadPdfFonts(svgNode, function () {
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svgToPdf(svgNode, 0, function (pdfData) {
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try {
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downloadURL(pdfData, filename);
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if (successCallback) {
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successCallback();
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}
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}
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catch (e) {
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failCallback(e);
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}
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});
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});
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}
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};
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// Initiate download depending on file type
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if (imageType === 'image/svg+xml') {
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// SVG download. In this case, we want to use Microsoft specific
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// Blob if available
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try {
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if (typeof win.navigator.msSaveOrOpenBlob !== 'undefined') {
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blob = new MSBlobBuilder();
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blob.append(svg);
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svgurl = blob.getBlob('image/svg+xml');
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}
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else {
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svgurl = svgToDataUrl(svg);
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}
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downloadURL(svgurl, filename);
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if (successCallback) {
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successCallback();
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}
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}
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catch (e) {
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failCallback(e);
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}
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}
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else if (imageType === 'application/pdf') {
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if (win.jspdf && win.jspdf.jsPDF) {
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downloadPDF();
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}
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else {
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// Must load pdf libraries first. // Don't destroy the object
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// URL yet since we are doing things asynchronously. A cleaner
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// solution would be nice, but this will do for now.
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objectURLRevoke = true;
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getScript(libURL + 'jspdf.js', function () {
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getScript(libURL + 'svg2pdf.js', downloadPDF);
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});
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}
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}
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else {
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// PNG/JPEG download - create bitmap from SVG
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svgurl = svgToDataUrl(svg);
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finallyHandler = function () {
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try {
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OfflineExporting.domurl.revokeObjectURL(svgurl);
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}
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catch (e) {
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// Ignore
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}
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};
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// First, try to get PNG by rendering on canvas
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imageToDataUrl(svgurl, imageType, {}, scale, function (imageURL) {
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// Success
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try {
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downloadURL(imageURL, filename);
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if (successCallback) {
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successCallback();
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}
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}
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catch (e) {
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failCallback(e);
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}
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}, function () {
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// Failed due to tainted canvas
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// Create new and untainted canvas
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var canvas = doc.createElement('canvas'), ctx = canvas.getContext('2d'), imageWidth = svg.match(/^<svg[^>]*width\s*=\s*\"?(\d+)\"?[^>]*>/)[1] * scale, imageHeight = svg.match(/^<svg[^>]*height\s*=\s*\"?(\d+)\"?[^>]*>/)[1] * scale, downloadWithCanVG = function () {
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var v = win.canvg.Canvg.fromString(ctx, svg);
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v.start();
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try {
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downloadURL(win.navigator.msSaveOrOpenBlob ?
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canvas.msToBlob() :
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canvas.toDataURL(imageType), filename);
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if (successCallback) {
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successCallback();
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}
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}
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catch (e) {
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failCallback(e);
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}
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finally {
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finallyHandler();
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}
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};
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canvas.width = imageWidth;
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canvas.height = imageHeight;
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if (win.canvg) {
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// Use preloaded canvg
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downloadWithCanVG();
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}
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else {
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// Must load canVG first. // Don't destroy the object
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// URL yet since we are doing things asynchronously. A
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// cleaner solution would be nice, but this will do for
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// now.
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objectURLRevoke = true;
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getScript(libURL + 'canvg.js', function () {
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downloadWithCanVG();
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});
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}
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},
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// No canvas support
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failCallback,
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// Failed to load image
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failCallback,
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// Finally
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function () {
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if (objectURLRevoke) {
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finallyHandler();
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}
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});
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}
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}
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OfflineExporting.downloadSVGLocal = downloadSVGLocal;
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/* eslint-disable valid-jsdoc */
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/**
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* Exporting and offline-exporting modules required. Export a chart to
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* an image locally in the user's browser.
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*
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* @function Highcharts.Chart#exportChartLocal
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*
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* @param {Highcharts.ExportingOptions} [exportingOptions]
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* Exporting options, the same as in
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* {@link Highcharts.Chart#exportChart}.
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*
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* @param {Highcharts.Options} [chartOptions]
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* Additional chart options for the exported chart. For example
|
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* a different background color can be added here, or
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* `dataLabels` for export only.
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*
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*
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* @requires modules/exporting
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* @requires modules/offline-exporting
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*/
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function exportChartLocal(exportingOptions, chartOptions) {
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var chart = this, options = merge(chart.options.exporting, exportingOptions), fallbackToExportServer = function (err) {
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if (options.fallbackToExportServer === false) {
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if (options.error) {
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options.error(options, err);
|
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}
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else {
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error(28, true); // Fallback disabled
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}
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}
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else {
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chart.exportChart(options);
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}
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}, svgSuccess = function (svg) {
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// If SVG contains foreignObjects PDF fails in all browsers
|
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// and all exports except SVG will fail in IE, as both CanVG
|
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// and svg2pdf choke on this. Gracefully fall back.
|
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if (svg.indexOf('<foreignObject') > -1 &&
|
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options.type !== 'image/svg+xml' &&
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(H.isMS || options.type === 'application/pdf')) {
|
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fallbackToExportServer(new Error('Image type not supported for charts with embedded HTML'));
|
||||
}
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else {
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OfflineExporting.downloadSVGLocal(svg, extend({ filename: chart.getFilename() }, options), fallbackToExportServer, function () { return fireEvent(chart, 'exportChartLocalSuccess'); });
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}
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},
|
||||
// Return true if the SVG contains images with external data. With
|
||||
// the boost module there are `image` elements with encoded PNGs,
|
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// these are supported by svg2pdf and should pass (#10243).
|
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hasExternalImages = function () {
|
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return [].some.call(chart.container.getElementsByTagName('image'), function (image) {
|
||||
var href = image.getAttribute('href');
|
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return (href !== '' &&
|
||||
typeof href === 'string' &&
|
||||
href.indexOf('data:') !== 0);
|
||||
});
|
||||
};
|
||||
// If we are on IE and in styled mode, add a whitelist to the renderer
|
||||
// for inline styles that we want to pass through. There are so many
|
||||
// styles by default in IE that we don't want to blacklist them all.
|
||||
if (H.isMS && chart.styledMode && !Exporting.inlineWhitelist.length) {
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||||
Exporting.inlineWhitelist.push(/^blockSize/, /^border/, /^caretColor/, /^color/, /^columnRule/, /^columnRuleColor/, /^cssFloat/, /^cursor/, /^fill$/, /^fillOpacity/, /^font/, /^inlineSize/, /^length/, /^lineHeight/, /^opacity/, /^outline/, /^parentRule/, /^rx$/, /^ry$/, /^stroke/, /^textAlign/, /^textAnchor/, /^textDecoration/, /^transform/, /^vectorEffect/, /^visibility/, /^x$/, /^y$/);
|
||||
}
|
||||
// Always fall back on:
|
||||
// - MS browsers: Embedded images JPEG/PNG, or any PDF
|
||||
// - Embedded images and PDF
|
||||
if ((H.isMS &&
|
||||
(options.type === 'application/pdf' ||
|
||||
chart.container.getElementsByTagName('image').length &&
|
||||
options.type !== 'image/svg+xml')) || (options.type === 'application/pdf' &&
|
||||
hasExternalImages())) {
|
||||
fallbackToExportServer(new Error('Image type not supported for this chart/browser.'));
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||||
return;
|
||||
}
|
||||
chart.getSVGForLocalExport(options, chartOptions || {}, fallbackToExportServer, svgSuccess);
|
||||
}
|
||||
/**
|
||||
* Downloads a script and executes a callback when done.
|
||||
*
|
||||
* @private
|
||||
* @function getScript
|
||||
* @param {string} scriptLocation
|
||||
* @param {Function} callback
|
||||
*/
|
||||
function getScript(scriptLocation, callback) {
|
||||
var head = doc.getElementsByTagName('head')[0], script = doc.createElement('script');
|
||||
script.type = 'text/javascript';
|
||||
script.src = scriptLocation;
|
||||
script.onload = callback;
|
||||
script.onerror = function () {
|
||||
error('Error loading script ' + scriptLocation);
|
||||
};
|
||||
head.appendChild(script);
|
||||
}
|
||||
OfflineExporting.getScript = getScript;
|
||||
/**
|
||||
* Get SVG of chart prepared for client side export. This converts
|
||||
* embedded images in the SVG to data URIs. It requires the regular
|
||||
* exporting module. The options and chartOptions arguments are passed
|
||||
* to the getSVGForExport function.
|
||||
*
|
||||
* @private
|
||||
* @function Highcharts.Chart#getSVGForLocalExport
|
||||
* @param {Highcharts.ExportingOptions} options
|
||||
* @param {Highcharts.Options} chartOptions
|
||||
* @param {Function} failCallback
|
||||
* @param {Function} successCallback
|
||||
*/
|
||||
function getSVGForLocalExport(options, chartOptions, failCallback, successCallback) {
|
||||
var chart = this,
|
||||
// After grabbing the SVG of the chart's copy container we need
|
||||
// to do sanitation on the SVG
|
||||
sanitize = function (svg) { return chart.sanitizeSVG(svg, chartCopyOptions); },
|
||||
// When done with last image we have our SVG
|
||||
checkDone = function () {
|
||||
if (images && imagesEmbedded === imagesLength) {
|
||||
successCallback(sanitize(chartCopyContainer.innerHTML));
|
||||
}
|
||||
},
|
||||
// Success handler, we converted image to base64!
|
||||
embeddedSuccess = function (imageURL, imageType, callbackArgs) {
|
||||
++imagesEmbedded;
|
||||
// Change image href in chart copy
|
||||
callbackArgs.imageElement.setAttributeNS('http://www.w3.org/1999/xlink', 'href', imageURL);
|
||||
checkDone();
|
||||
};
|
||||
var el, chartCopyContainer, chartCopyOptions, href = null, images, imagesLength = 0, imagesEmbedded = 0;
|
||||
// Hook into getSVG to get a copy of the chart copy's
|
||||
// container (#8273)
|
||||
chart.unbindGetSVG = addEvent(chart, 'getSVG', function (e) {
|
||||
chartCopyOptions = e.chartCopy.options;
|
||||
chartCopyContainer = e.chartCopy.container.cloneNode(true);
|
||||
images = chartCopyContainer && chartCopyContainer
|
||||
.getElementsByTagName('image') || [];
|
||||
imagesLength = images.length;
|
||||
});
|
||||
// Trigger hook to get chart copy
|
||||
chart.getSVGForExport(options, chartOptions);
|
||||
try {
|
||||
// If there are no images to embed, the SVG is okay now.
|
||||
if (!images || !images.length) {
|
||||
// Use SVG of chart copy
|
||||
successCallback(sanitize(chartCopyContainer.innerHTML));
|
||||
return;
|
||||
}
|
||||
// Go through the images we want to embed
|
||||
for (var i = 0; i < images.length; i++) {
|
||||
el = images[i];
|
||||
href = el.getAttributeNS('http://www.w3.org/1999/xlink', 'href');
|
||||
if (href) {
|
||||
OfflineExporting.imageToDataUrl(href, 'image/png', { imageElement: el }, options.scale, embeddedSuccess,
|
||||
// Tainted canvas
|
||||
failCallback,
|
||||
// No canvas support
|
||||
failCallback,
|
||||
// Failed to load source
|
||||
failCallback);
|
||||
// Hidden, boosted series have blank href (#10243)
|
||||
}
|
||||
else {
|
||||
imagesEmbedded++;
|
||||
el.parentNode.removeChild(el);
|
||||
i--;
|
||||
checkDone();
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (e) {
|
||||
failCallback(e);
|
||||
}
|
||||
// Clean up
|
||||
chart.unbindGetSVG();
|
||||
}
|
||||
/**
|
||||
* Get data:URL from image URL. Pass in callbacks to handle results.
|
||||
*
|
||||
* @private
|
||||
* @function Highcharts.imageToDataUrl
|
||||
*
|
||||
* @param {string} imageURL
|
||||
*
|
||||
* @param {string} imageType
|
||||
*
|
||||
* @param {*} callbackArgs
|
||||
* callbackArgs is used only by callbacks.
|
||||
*
|
||||
* @param {number} scale
|
||||
*
|
||||
* @param {Function} successCallback
|
||||
* Receives four arguments: imageURL, imageType, callbackArgs,
|
||||
* and scale.
|
||||
*
|
||||
* @param {Function} taintedCallback
|
||||
* Receives four arguments: imageURL, imageType, callbackArgs,
|
||||
* and scale.
|
||||
*
|
||||
* @param {Function} noCanvasSupportCallback
|
||||
* Receives four arguments: imageURL, imageType, callbackArgs,
|
||||
* and scale.
|
||||
*
|
||||
* @param {Function} failedLoadCallback
|
||||
* Receives four arguments: imageURL, imageType, callbackArgs,
|
||||
* and scale.
|
||||
*
|
||||
* @param {Function} [finallyCallback]
|
||||
* finallyCallback is always called at the end of the process. All
|
||||
* callbacks receive four arguments: imageURL, imageType,
|
||||
* callbackArgs, and scale.
|
||||
*/
|
||||
function imageToDataUrl(imageURL, imageType, callbackArgs, scale, successCallback, taintedCallback, noCanvasSupportCallback, failedLoadCallback, finallyCallback) {
|
||||
var img = new win.Image(), taintedHandler;
|
||||
var loadHandler = function () {
|
||||
setTimeout(function () {
|
||||
var canvas = doc.createElement('canvas'), ctx = canvas.getContext && canvas.getContext('2d');
|
||||
var dataURL;
|
||||
try {
|
||||
if (!ctx) {
|
||||
noCanvasSupportCallback(imageURL, imageType, callbackArgs, scale);
|
||||
}
|
||||
else {
|
||||
canvas.height = img.height * scale;
|
||||
canvas.width = img.width * scale;
|
||||
ctx.drawImage(img, 0, 0, canvas.width, canvas.height);
|
||||
// Now we try to get the contents of the canvas.
|
||||
try {
|
||||
dataURL = canvas.toDataURL(imageType);
|
||||
successCallback(dataURL, imageType, callbackArgs, scale);
|
||||
}
|
||||
catch (e) {
|
||||
taintedHandler(imageURL, imageType, callbackArgs, scale);
|
||||
}
|
||||
}
|
||||
}
|
||||
finally {
|
||||
if (finallyCallback) {
|
||||
finallyCallback(imageURL, imageType, callbackArgs, scale);
|
||||
}
|
||||
}
|
||||
// IE bug where image is not always ready despite calling load
|
||||
// event.
|
||||
}, OfflineExporting.loadEventDeferDelay);
|
||||
},
|
||||
// Image load failed (e.g. invalid URL)
|
||||
errorHandler = function () {
|
||||
failedLoadCallback(imageURL, imageType, callbackArgs, scale);
|
||||
if (finallyCallback) {
|
||||
finallyCallback(imageURL, imageType, callbackArgs, scale);
|
||||
}
|
||||
};
|
||||
// This is called on load if the image drawing to canvas failed with a
|
||||
// security error. We retry the drawing with crossOrigin set to
|
||||
// Anonymous.
|
||||
taintedHandler = function () {
|
||||
img = new win.Image();
|
||||
taintedHandler = taintedCallback;
|
||||
// Must be set prior to loading image source
|
||||
img.crossOrigin = 'Anonymous';
|
||||
img.onload = loadHandler;
|
||||
img.onerror = errorHandler;
|
||||
img.src = imageURL;
|
||||
};
|
||||
img.onload = loadHandler;
|
||||
img.onerror = errorHandler;
|
||||
img.src = imageURL;
|
||||
}
|
||||
OfflineExporting.imageToDataUrl = imageToDataUrl;
|
||||
/**
|
||||
* Get blob URL from SVG code. Falls back to normal data URI.
|
||||
*
|
||||
* @private
|
||||
* @function Highcharts.svgToDataURL
|
||||
*/
|
||||
function svgToDataUrl(svg) {
|
||||
// Webkit and not chrome
|
||||
var userAgent = win.navigator.userAgent;
|
||||
var webKit = (userAgent.indexOf('WebKit') > -1 &&
|
||||
userAgent.indexOf('Chrome') < 0);
|
||||
try {
|
||||
// Safari requires data URI since it doesn't allow navigation to
|
||||
// blob URLs. ForeignObjects also dont work well in Blobs in Chrome
|
||||
// (#14780).
|
||||
if (!webKit && svg.indexOf('<foreignObject') === -1) {
|
||||
return OfflineExporting.domurl.createObjectURL(new win.Blob([svg], {
|
||||
type: 'image/svg+xml;charset-utf-16'
|
||||
}));
|
||||
}
|
||||
}
|
||||
catch (e) {
|
||||
// Ignore
|
||||
}
|
||||
return 'data:image/svg+xml;charset=UTF-8,' + encodeURIComponent(svg);
|
||||
}
|
||||
OfflineExporting.svgToDataUrl = svgToDataUrl;
|
||||
/* eslint-disable valid-jsdoc */
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
function svgToPdf(svgElement, margin, callback) {
|
||||
var width = Number(svgElement.getAttribute('width')) + 2 * margin, height = Number(svgElement.getAttribute('height')) + 2 * margin, pdfDoc = new win.jspdf.jsPDF(// eslint-disable-line new-cap
|
||||
// setting orientation to portrait if height exceeds width
|
||||
height > width ? 'p' : 'l', 'pt', [width, height]);
|
||||
// Workaround for #7090, hidden elements were drawn anyway. It comes
|
||||
// down to https://github.com/yWorks/svg2pdf.js/issues/28. Check this
|
||||
// later.
|
||||
[].forEach.call(svgElement.querySelectorAll('*[visibility="hidden"]'), function (node) {
|
||||
node.parentNode.removeChild(node);
|
||||
});
|
||||
// Workaround for #13948, multiple stops in linear gradient set to 0
|
||||
// causing error in Acrobat
|
||||
var gradients = svgElement.querySelectorAll('linearGradient');
|
||||
for (var index = 0; index < gradients.length; index++) {
|
||||
var gradient = gradients[index];
|
||||
var stops = gradient.querySelectorAll('stop');
|
||||
var i = 0;
|
||||
while (i < stops.length &&
|
||||
stops[i].getAttribute('offset') === '0' &&
|
||||
stops[i + 1].getAttribute('offset') === '0') {
|
||||
stops[i].remove();
|
||||
i++;
|
||||
}
|
||||
}
|
||||
// Workaround for #15135, zero width spaces, which Highcharts uses
|
||||
// to break lines, are not correctly rendered in PDF. Replace it
|
||||
// with a regular space and offset by some pixels to compensate.
|
||||
[].forEach.call(svgElement.querySelectorAll('tspan'), function (tspan) {
|
||||
if (tspan.textContent === '\u200B') {
|
||||
tspan.textContent = ' ';
|
||||
tspan.setAttribute('dx', -5);
|
||||
}
|
||||
});
|
||||
pdfDoc.svg(svgElement, {
|
||||
x: 0,
|
||||
y: 0,
|
||||
width: width,
|
||||
height: height,
|
||||
removeInvalid: true
|
||||
}).then(function () { return callback(pdfDoc.output('datauristring')); });
|
||||
}
|
||||
OfflineExporting.svgToPdf = svgToPdf;
|
||||
})(OfflineExporting || (OfflineExporting = {}));
|
||||
/* *
|
||||
*
|
||||
* Default Export
|
||||
*
|
||||
* */
|
||||
export default OfflineExporting;
|
||||
@@ -0,0 +1,58 @@
|
||||
/* *
|
||||
*
|
||||
* (c) 2010-2021 Torstein Honsi
|
||||
*
|
||||
* License: www.highcharts.com/license
|
||||
*
|
||||
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
|
||||
*
|
||||
* */
|
||||
'use strict';
|
||||
/* *
|
||||
*
|
||||
* Declarations
|
||||
*
|
||||
* */
|
||||
var OfflineExportingDefaults = {
|
||||
libURL: 'https://code.highcharts.com/10.2.1/lib/',
|
||||
// When offline-exporting is loaded, redefine the menu item definitions
|
||||
// related to download.
|
||||
menuItemDefinitions: {
|
||||
downloadPNG: {
|
||||
textKey: 'downloadPNG',
|
||||
onclick: function () {
|
||||
this.exportChartLocal();
|
||||
}
|
||||
},
|
||||
downloadJPEG: {
|
||||
textKey: 'downloadJPEG',
|
||||
onclick: function () {
|
||||
this.exportChartLocal({
|
||||
type: 'image/jpeg'
|
||||
});
|
||||
}
|
||||
},
|
||||
downloadSVG: {
|
||||
textKey: 'downloadSVG',
|
||||
onclick: function () {
|
||||
this.exportChartLocal({
|
||||
type: 'image/svg+xml'
|
||||
});
|
||||
}
|
||||
},
|
||||
downloadPDF: {
|
||||
textKey: 'downloadPDF',
|
||||
onclick: function () {
|
||||
this.exportChartLocal({
|
||||
type: 'application/pdf'
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
/* *
|
||||
*
|
||||
* Default Export
|
||||
*
|
||||
* */
|
||||
export default OfflineExportingDefaults;
|
||||
Reference in New Issue
Block a user