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| 1 | +/* |
| 2 | + * Includes code from: |
| 3 | + * |
| 4 | + * localForage - websql driver |
| 5 | + * https://github.com/mozilla/localforage |
| 6 | + * |
| 7 | + * Copyright (c) 2015 Mozilla |
| 8 | + * Licensed under Apache 2.0 license. |
| 9 | + * |
| 10 | + */ |
| 11 | +// import localforage from 'localforage'; |
| 12 | +import { getSerializerPromise, getWebSqlDriverPromise } from './utils'; |
| 13 | +import { openDatabasePromise } from './cordova-sqlite'; |
| 14 | + |
| 15 | +// // If cordova is not present, we can stop now. |
| 16 | +// if (!globalObject.cordova) { |
| 17 | +// return; |
| 18 | +// } |
| 19 | + |
| 20 | +// Open the cordova sqlite plugin database (automatically creates one if one didn't |
| 21 | +// previously exist), using any options set in the config. |
| 22 | +function _initStorage(options) { |
| 23 | + var self = this; |
| 24 | + var dbInfo = { |
| 25 | + db: null |
| 26 | + }; |
| 27 | + |
| 28 | + if (options) { |
| 29 | + for (var i in options) { |
| 30 | + dbInfo[i] = typeof(options[i]) !== 'string' ? |
| 31 | + options[i].toString() : options[i]; |
| 32 | + } |
| 33 | + } |
| 34 | + |
| 35 | + var dbInfoPromise = openDatabasePromise.then(function(openDatabase){ |
| 36 | + return new Promise(function(resolve, reject) { |
| 37 | + // Open the database; the openDatabase API will automatically |
| 38 | + // create it for us if it doesn't exist. |
| 39 | + try { |
| 40 | + dbInfo.location = dbInfo.location || 'default'; |
| 41 | + dbInfo.db = openDatabase({ |
| 42 | + name: dbInfo.name, |
| 43 | + version: String(dbInfo.version), |
| 44 | + description: dbInfo.description, |
| 45 | + size: dbInfo.size, |
| 46 | + location: dbInfo.location |
| 47 | + }); |
| 48 | + } catch (e) { |
| 49 | + reject(e); |
| 50 | + } |
| 51 | + |
| 52 | + // Create our key/value table if it doesn't exist. |
| 53 | + dbInfo.db.transaction(function(t) { |
| 54 | + t.executeSql('CREATE TABLE IF NOT EXISTS ' + dbInfo.storeName + |
| 55 | + ' (id INTEGER PRIMARY KEY, key unique, value)', [], |
| 56 | + function() { |
| 57 | + self._dbInfo = dbInfo; |
| 58 | + resolve(); |
| 59 | + }, function(t, error) { |
| 60 | + reject(error); |
| 61 | + }); |
| 62 | + }); |
| 63 | + }); |
| 64 | + }); |
| 65 | + |
| 66 | + var serializerPromise = getSerializerPromise(self); |
| 67 | + var webSqlDriverPromise = getWebSqlDriverPromise(self); |
| 68 | + |
| 69 | + return Promise.all([ |
| 70 | + serializerPromise, |
| 71 | + webSqlDriverPromise, |
| 72 | + dbInfoPromise |
| 73 | + ]).then(function(results) { |
| 74 | + dbInfo.serializer = results[0]; |
| 75 | + return dbInfoPromise; |
| 76 | + }); |
| 77 | +} |
| 78 | + |
| 79 | +var cordovaSQLiteDriver = { |
| 80 | + _driver: 'cordovaSQLiteDriver', |
| 81 | + _initStorage: _initStorage, |
| 82 | + _support: function() { |
| 83 | + return openDatabasePromise.then(function(openDatabase) { |
| 84 | + return !!openDatabase; |
| 85 | + }).catch(function(){ |
| 86 | + return false; |
| 87 | + }); |
| 88 | + } |
| 89 | +}; |
| 90 | + |
| 91 | +function wireUpDriverMethods(driver) { |
| 92 | + var LibraryMethods = [ |
| 93 | + 'clear', |
| 94 | + 'getItem', |
| 95 | + 'iterate', |
| 96 | + 'key', |
| 97 | + 'keys', |
| 98 | + 'length', |
| 99 | + 'removeItem', |
| 100 | + 'setItem' |
| 101 | + ]; |
| 102 | + |
| 103 | + function wireUpDriverMethod(driver, methodName) { |
| 104 | + driver[methodName] = function () { |
| 105 | + var localForageInstance = this; |
| 106 | + var args = arguments; |
| 107 | + return getWebSqlDriverPromise(localForageInstance).then(function (webSqlDriver) { |
| 108 | + return webSqlDriver[methodName].apply(localForageInstance, args); |
| 109 | + }); |
| 110 | + }; |
| 111 | + } |
| 112 | + |
| 113 | + for (var i = 0, len = LibraryMethods.length; i < len; i++) { |
| 114 | + wireUpDriverMethod(driver, LibraryMethods[i]); |
| 115 | + } |
| 116 | +} |
| 117 | + |
| 118 | +wireUpDriverMethods(cordovaSQLiteDriver); |
| 119 | + |
| 120 | +export default cordovaSQLiteDriver; |
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