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1 /** |
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2 * @author ryan |
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3 */ |
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4 |
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5 function Storage() { |
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6 this.available = true; |
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7 this.serialized = null; |
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8 this.items = null; |
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9 |
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10 if (!window.widget) { |
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11 this.available = false; |
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12 return; |
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13 } |
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14 var pref = window.widget.preferenceForKey(Storage.PREFERENCE_KEY); |
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15 |
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16 //storage not yet created |
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17 if (pref == "undefined" || pref == undefined) { |
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18 this.length = 0; |
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19 this.serialized = "({})"; |
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20 this.items = {}; |
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21 window.widget.setPreferenceForKey(this.serialized, Storage.PREFERENCE_KEY); |
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22 } else { |
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23 this.serialized = pref;'({"store_test": { "key": "store_test", "data": "asdfasdfs" },})'; |
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24 this.items = eval(this.serialized); |
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25 } |
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26 } |
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27 |
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28 Storage.PREFERENCE_KEY = "phonegap_storage_pref_key"; |
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29 |
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30 Storage.prototype.index = function (key) { |
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31 |
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32 }; |
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33 |
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34 Storage.prototype.getItem = function (key) { |
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35 try { |
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36 return this.items[key].data; |
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37 } catch (ex) { |
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38 return null; |
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39 } |
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40 }; |
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41 |
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42 Storage.prototype.setItem = function (key, data) { |
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43 |
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44 this.items[key] = { |
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45 "key": key, |
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46 "data": data |
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47 }; |
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48 |
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49 this.serialize(); |
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50 }; |
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51 |
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52 Storage.prototype.removeItem = function (key) { |
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53 |
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54 if (this.items[key]) { |
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55 this.items[key] = undefined; |
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56 } |
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57 this.serialize(); |
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58 }; |
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59 |
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60 Storage.prototype.clear = function () { |
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61 this.serialized = "({})"; |
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62 this.items = {}; |
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63 this.serialize(); |
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64 }; |
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65 |
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66 Storage.prototype.serialize = function() { |
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67 var json = ""; |
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68 |
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69 for (key in this.items) { |
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70 var item = this.items[key]; |
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71 if (typeof item != "undefined") { |
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72 json += "\"" + item.key + "\": { \"key\": \"" + item.key + "\", \"data\": \"" + item.data + "\" }, "; |
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73 } |
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74 } |
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75 this.serialized = "({" + json + "})"; |
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76 |
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77 window.widget.setPreferenceForKey( this.serialized, Storage.PREFERENCE_KEY); |
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78 }; |
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79 |
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80 if (typeof navigator.storage == "undefined" ) navigator.storage = new Storage(); |