modules/javascript.js

  1. /**
  2.  * @license
  3.  * ====================================================================
  4.  * Copyright (c) 2013 Youssef Beddad, youssef.beddad@gmail.com
  5.  *
  6.  * Permission is hereby granted, free of charge, to any person obtaining
  7.  * a copy of this software and associated documentation files (the
  8.  * "Software"), to deal in the Software without restriction, including
  9.  * without limitation the rights to use, copy, modify, merge, publish,
  10.  * distribute, sublicense, and/or sell copies of the Software, and to
  11.  * permit persons to whom the Software is furnished to do so, subject to
  12.  * the following conditions:
  13.  *
  14.  * The above copyright notice and this permission notice shall be
  15.  * included in all copies or substantial portions of the Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18.  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  20.  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  21.  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22.  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23.  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24.  * ====================================================================
  25.  */
  27. import { jsPDF } from "../jspdf.js";
  29. /**
  30.  * jsPDF JavaScript plugin
  31.  *
  32.  * @name javascript
  33.  * @module
  34.  */
  35. (function(jsPDFAPI) {
  36.   "use strict";
  37.   var jsNamesObj, jsJsObj, text;
  38.   /**
  39.    * @name addJS
  40.    * @function
  41.    * @param {string} javascript The javascript to be embedded into the PDF-file.
  42.    * @returns {jsPDF}
  43.    */
  44.   jsPDFAPI.addJS = function(javascript) {
  45.     text = javascript;
  46.     this.internal.events.subscribe("postPutResources", function() {
  47.       jsNamesObj = this.internal.newObject();
  48.       this.internal.out("<<");
  49.       this.internal.out("/Names [(EmbeddedJS) " + (jsNamesObj + 1) + " 0 R]");
  50.       this.internal.out(">>");
  51.       this.internal.out("endobj");
  53.       jsJsObj = this.internal.newObject();
  54.       this.internal.out("<<");
  55.       this.internal.out("/S /JavaScript");
  56.       this.internal.out("/JS (" + text + ")");
  57.       this.internal.out(">>");
  58.       this.internal.out("endobj");
  59.     });
  60.     this.internal.events.subscribe("putCatalog", function() {
  61.       if (jsNamesObj !== undefined && jsJsObj !== undefined) {
  62.         this.internal.out("/Names <</JavaScript " + jsNamesObj + " 0 R>>");
  63.       }
  64.     });
  65.     return this;
  66.   };
  67. })(jsPDF.API);