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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 'use strict'; |
| 6 |
| 7 /** |
| 8 * Creates a new OpenPDFParamsParser. This parses the open pdf parameters |
| 9 * passed in the url to set initial viewport settings for opening the pdf. |
| 10 * @param {string} url to be parsed. |
| 11 */ |
| 12 function OpenPDFParamsParser(url) { |
| 13 this.url_ = url; |
| 14 this.urlParams = {}; |
| 15 this.parseOpenPDFParams_(); |
| 16 } |
| 17 |
| 18 OpenPDFParamsParser.prototype = { |
| 19 /** |
| 20 * @private |
| 21 * Parse open PDF parameters. These parameters are mentioned in the url |
| 22 * and specify actions to be performed when opening pdf files. |
| 23 * See http://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/ |
| 24 * pdfs/pdf_open_parameters.pdf for details. |
| 25 */ |
| 26 parseOpenPDFParams_: function() { |
| 27 var originalUrl = this.url_; |
| 28 var paramIndex = originalUrl.search('#'); |
| 29 if (paramIndex == -1) |
| 30 return; |
| 31 |
| 32 var paramTokens = originalUrl.substring(paramIndex + 1).split('&'); |
| 33 var paramsDictionary = {}; |
| 34 for (var i = 0; i < paramTokens.length; ++i) { |
| 35 var keyValueSplit = paramTokens[i].split('='); |
| 36 if (keyValueSplit.length != 2) |
| 37 continue; |
| 38 paramsDictionary[keyValueSplit[0]] = keyValueSplit[1]; |
| 39 } |
| 40 |
| 41 if ('page' in paramsDictionary) { |
| 42 // |pageNumber| is 1-based, but goToPage() take a zero-based page number. |
| 43 var pageNumber = parseInt(paramsDictionary['page']); |
| 44 if (!isNaN(pageNumber)) |
| 45 this.urlParams['page'] = pageNumber - 1; |
| 46 } |
| 47 } |
| 48 }; |
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