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annotate war/scripts/OpenLayers/lib/Gears/gears_init.js @ 29:4711c4ab0c23

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Improved robustness of KML parsing (with Firefox and probably other browsers a missing node can lead to a NullPointerException that will not be catched by the try/catch)
author Sebastian Kruse <skruse@mpiwg-berlin.mpg.de>
date Wed, 28 Nov 2012 17:00:49 +0100
parents cf06b77a8bbd
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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3
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1 /*
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2 * Copyright 2007, Google Inc.
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3 *
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4 * Redistribution and use in source and binary forms, with or without
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5 * modification, are permitted provided that the following conditions are met:
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6 *
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7 * 1. Redistributions of source code must retain the above copyright notice,
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8 * this list of conditions and the following disclaimer.
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9 * 2. Redistributions in binary form must reproduce the above copyright notice,
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10 * this list of conditions and the following disclaimer in the documentation
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11 * and/or other materials provided with the distribution.
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12 * 3. Neither the name of Google Inc. nor the names of its contributors may be
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13 * used to endorse or promote products derived from this software without
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14 * specific prior written permission.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26 *
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27 * Sets up google.gears.*, which is *the only* supported way to access Gears.
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28 *
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29 * Circumvent this file at your own risk!
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30 *
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31 * In the future, Gears may automatically define google.gears.* without this
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32 * file. Gears may use these objects to transparently fix bugs and compatibility
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33 * issues. Applications that use the code below will continue to work seamlessly
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34 * when that happens.
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35 */
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36
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37 (function() {
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38 // We are already defined. Hooray!
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39 if (window.google && google.gears) {
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40 return;
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41 }
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42
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43 var factory = null;
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44
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45 // Firefox
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46 if (typeof GearsFactory != 'undefined') {
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47 factory = new GearsFactory();
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48 } else {
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49 // IE
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50 try {
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51 factory = new ActiveXObject('Gears.Factory');
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52 // privateSetGlobalObject is only required and supported on WinCE.
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53 if (factory.getBuildInfo().indexOf('ie_mobile') != -1) {
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54 factory.privateSetGlobalObject(this);
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55 }
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56 } catch (e) {
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57 // Safari
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58 if ((typeof navigator.mimeTypes != 'undefined')
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59 && navigator.mimeTypes["application/x-googlegears"]) {
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60 factory = document.createElement("object");
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61 factory.style.display = "none";
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62 factory.width = 0;
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63 factory.height = 0;
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64 factory.type = "application/x-googlegears";
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65 document.documentElement.appendChild(factory);
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66 }
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67 }
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68 }
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69
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70 // *Do not* define any objects if Gears is not installed. This mimics the
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71 // behavior of Gears defining the objects in the future.
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72 if (!factory) {
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73 return;
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74 }
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75
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76 // Now set up the objects, being careful not to overwrite anything.
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77 //
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78 // Note: In Internet Explorer for Windows Mobile, you can't add properties to
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79 // the window object. However, global objects are automatically added as
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80 // properties of the window object in all browsers.
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81 if (!window.google) {
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82 google = {};
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83 }
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84
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85 if (!google.gears) {
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86 google.gears = {factory: factory};
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87 }
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88 })();