1 | /*! |
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2 | * Ext JS Library 3.0.0 |
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3 | * Copyright(c) 2006-2009 Ext JS, LLC |
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4 | * licensing@extjs.com |
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5 | * http://www.extjs.com/license |
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6 | */ |
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7 | // Copyright 2007 Google Inc. All Rights Reserved. |
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8 | // |
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9 | // Sets up google.gears.*, which is *the only* supported way to access Gears. |
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10 | // |
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11 | // Circumvent this file at your own risk! |
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12 | // |
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13 | // In the future, Gears may automatically define google.gears.* without this |
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14 | // file. Gears may use these objects to transparently fix bugs and compatibility |
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15 | // issues. Applications that use the code below will continue to work seamlessly |
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16 | // when that happens. |
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17 | |
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18 | (function() { |
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19 | // We are already defined. Hooray! |
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20 | if (window.google && google.gears) { |
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21 | return; |
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22 | } |
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23 | |
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24 | var factory = null; |
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25 | |
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26 | // Firefox |
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27 | if (typeof GearsFactory != 'undefined') { |
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28 | factory = new GearsFactory(); |
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29 | } else { |
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30 | // IE |
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31 | try { |
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32 | factory = new ActiveXObject('Gears.Factory'); |
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33 | } catch (e) { |
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34 | // Safari |
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35 | if (navigator.mimeTypes["application/x-googlegears"]) { |
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36 | factory = document.createElement("object"); |
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37 | factory.style.display = "none"; |
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38 | factory.width = 0; |
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39 | factory.height = 0; |
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40 | factory.type = "application/x-googlegears"; |
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41 | document.documentElement.appendChild(factory); |
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42 | } |
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43 | } |
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44 | } |
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45 | |
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46 | // *Do not* define any objects if Gears is not installed. This mimics the |
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47 | // behavior of Gears defining the objects in the future. |
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48 | if (!factory) { |
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49 | return; |
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50 | } |
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51 | |
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52 | // Now set up the objects, being careful not to overwrite anything. |
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53 | if (!window.google) { |
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54 | window.google = {}; |
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55 | } |
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56 | |
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57 | if (!google.gears) { |
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58 | google.gears = {factory: factory}; |
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59 | } |
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60 | })(); |
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61 | |
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62 | if (!window.google || !google.gears) { |
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63 | location.href = "http://gears.google.com/?action=install&message=Google%20Gears%20is%20required%20for%20this%20application" + |
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64 | "&return="+window.location.href; |
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65 | } |
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