| <!DOCTYPE html> |
| <!-- |
| Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| Use of this source code is governed by a BSD-style license that can be |
| found in the LICENSE file. |
| --> |
| |
| <link rel="import" href="/extras/importer/jszip.html"> |
| <link rel="import" href="/extras/importer/gzip_importer.html"> |
| <link rel="import" href="/importer/importer.html"> |
| <link rel="import" href="/model/model.html"> |
| |
| <script> |
| 'use strict'; |
| |
| /** |
| * @fileoverview ZipImporter inflates zip compressed data and passes it along |
| * to an actual importer. |
| */ |
| tr.exportTo('tr.e.importer', function() { |
| var Importer = tr.importer.Importer; |
| |
| function ZipImporter(model, eventData) { |
| if (eventData instanceof ArrayBuffer) |
| eventData = new Uint8Array(eventData); |
| this.model_ = model; |
| this.eventData_ = eventData; |
| } |
| |
| /** |
| * @param {eventData} string Possibly zip compressed data. |
| * @return {boolean} Whether eventData looks like zip compressed data. |
| */ |
| ZipImporter.canImport = function(eventData) { |
| var header; |
| if (eventData instanceof ArrayBuffer) |
| header = new Uint8Array(eventData.slice(0, 2)); |
| else if (typeof(eventData) === 'string' || eventData instanceof String) |
| header = [eventData.charCodeAt(0), eventData.charCodeAt(1)]; |
| else |
| return false; |
| return header[0] === 'P'.charCodeAt(0) && header[1] === 'K'.charCodeAt(0); |
| }; |
| |
| ZipImporter.prototype = { |
| __proto__: Importer.prototype, |
| |
| isTraceDataContainer: function() { |
| return true; |
| }, |
| |
| extractSubtraces: function() { |
| var zip = new JSZip(this.eventData_); |
| var subtraces = []; |
| for (var idx in zip.files) |
| subtraces.push(zip.files[idx].asBinary()); |
| return subtraces; |
| } |
| }; |
| |
| tr.importer.Importer.register(ZipImporter); |
| |
| return { |
| ZipImporter: ZipImporter |
| }; |
| }); |
| </script> |
