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| 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 // DO NOT EDIT | |
| 6 // Auto-generated dart:indexed_db library. | |
| 7 | |
| 8 /** | |
| 9 * A client-side key-value store with support for indexes. | |
| 10 * | |
| 11 * Many browsers support IndexedDB—a web standard for | |
| 12 * an indexed database. | |
| 13 * By storing data on the client in an IndexedDB, | |
| 14 * a web app gets some advantages, such as faster performance and persistence. | |
| 15 * To find out which browsers support IndexedDB, | |
| 16 * refer to [Can I Use?](http://caniuse.com/#feat=indexeddb) | |
| 17 * | |
| 18 * In IndexedDB, each record is identified by a unique index or key, | |
| 19 * making data retrieval speedy. | |
| 20 * You can store structured data, | |
| 21 * such as images, arrays, and maps using IndexedDB. | |
| 22 * The standard does not specify size limits for individual data items | |
| 23 * or for the database itself, but browsers may impose storage limits. | |
| 24 * | |
| 25 * ## Using indexed_db | |
| 26 * | |
| 27 * The classes in this library provide an interface | |
| 28 * to the browser's IndexedDB, if it has one. | |
| 29 * To use this library in your code: | |
| 30 * | |
| 31 * import 'dart:indexed_db'; | |
| 32 * | |
| 33 * A web app can determine if the browser supports | |
| 34 * IndexedDB with [IdbFactory.supported]: | |
| 35 * | |
| 36 * if (IdbFactory.supported) | |
| 37 * // Use indexeddb. | |
| 38 * else | |
| 39 * // Find an alternative. | |
| 40 * | |
| 41 * Access to the browser's IndexedDB is provided by the app's top-level | |
| 42 * [Window] object, which your code can refer to with `window.indexedDB`. | |
| 43 * So, for example, | |
| 44 * here's how to use window.indexedDB to open a database: | |
| 45 * | |
| 46 * Future open() { | |
| 47 * return window.indexedDB.open('myIndexedDB', | |
| 48 * version: 1, | |
| 49 * onUpgradeNeeded: _initializeDatabase) | |
| 50 * .then(_loadFromDB); | |
| 51 * } | |
| 52 * void _initializeDatabase(VersionChangeEvent e) { | |
| 53 * ... | |
| 54 * } | |
| 55 * Future _loadFromDB(Database db) { | |
| 56 * ... | |
| 57 * } | |
| 58 * | |
| 59 * | |
| 60 * All data in an IndexedDB is stored within an [ObjectStore]. | |
| 61 * To manipulate the database use [Transaction]s. | |
| 62 * | |
| 63 * ## Other resources | |
| 64 * | |
| 65 * Other options for client-side data storage include: | |
| 66 * | |
| 67 * * [Window.localStorage]—a | |
| 68 * basic mechanism that stores data as a [Map], | |
| 69 * and where both the keys and the values are strings. | |
| 70 * | |
| 71 * * [dart:web_sql]—a database that can be queried with SQL. | |
| 72 * | |
| 73 * For a tutorial about using the indexed_db library with Dart, | |
| 74 * check out | |
| 75 * [Use IndexedDB](http://www.dartlang.org/docs/tutorials/indexeddb/). | |
| 76 * | |
| 77 * [IndexedDB reference](http://docs.webplatform.org/wiki/apis/indexeddb) | |
| 78 * provides wiki-style docs about indexedDB | |
| 79 */ | |
| 80 library dart.dom.indexed_db; | |
| 81 | |
| 82 import 'dart:async'; | |
| 83 import 'dart:html'; | |
| 84 import 'dart:html_common'; | |
| 85 import 'dart:nativewrappers'; | |
| 86 import 'dart:_blink' as _blink; | |
| 87 import 'dart:js' as js; | |
| 88 | |
| 89 $!GENERATED_DART_FILES | |
| 90 | |
| 91 class _KeyRangeFactoryProvider { | |
| 92 | |
| 93 static KeyRange createKeyRange_only(/*IDBKey*/ value) => | |
| 94 KeyRange.only_(value); | |
| 95 | |
| 96 static KeyRange createKeyRange_lowerBound( | |
| 97 /*IDBKey*/ bound, [bool open = false]) => | |
| 98 KeyRange.lowerBound_(bound, open); | |
| 99 | |
| 100 static KeyRange createKeyRange_upperBound( | |
| 101 /*IDBKey*/ bound, [bool open = false]) => | |
| 102 KeyRange.upperBound_(bound, open); | |
| 103 | |
| 104 static KeyRange createKeyRange_bound( | |
| 105 /*IDBKey*/ lower, /*IDBKey*/ upper, | |
| 106 [bool lowerOpen = false, bool upperOpen = false]) => | |
| 107 KeyRange.bound_(lower, upper, lowerOpen, upperOpen); | |
| 108 } | |
| 109 // FIXME: Can we make this private? | |
| 110 @Deprecated("Internal Use Only") | |
| 111 final indexed_dbBlinkMap = { | |
| 112 $!TYPE_MAP | |
| 113 }; | |
| 114 | |
| 115 | |
| 116 // | |
| 117 // Per http://www.w3.org/TR/IndexedDB/#key-construct | |
| 118 // | |
| 119 // "A value is said to be a valid key if it is one of the following types: Array | |
| 120 // JavaScript objects [ECMA-262], DOMString [WEBIDL], Date [ECMA-262] or float | |
| 121 // [WEBIDL]. However Arrays are only valid keys if every item in the array is | |
| 122 // defined and is a valid key (i.e. sparse arrays can not be valid keys) and if | |
| 123 // the Array doesn't directly or indirectly contain itself. Any non-numeric | |
| 124 // properties are ignored, and thus does not affect whether the Array is a valid | |
| 125 // key. Additionally, if the value is of type float, it is only a valid key if | |
| 126 // it is not NaN, and if the value is of type Date it is only a valid key if its | |
| 127 // [[PrimitiveValue]] internal property, as defined by [ECMA-262], is not NaN." | |
| 128 | |
| 129 // What is required is to ensure that an Lists in the key are actually | |
| 130 // JavaScript arrays, and any Dates are JavaScript Dates. | |
| 131 | |
| 132 | |
| 133 /** | |
| 134 * Converts a native IDBKey into a Dart object. | |
| 135 * | |
| 136 * May return the original input. May mutate the original input (but will be | |
| 137 * idempotent if mutation occurs). It is assumed that this conversion happens | |
| 138 * on native IDBKeys on all paths that return IDBKeys from native DOM calls. | |
| 139 * | |
| 140 * If necessary, JavaScript Dates are converted into Dart Dates. | |
| 141 */ | |
| 142 _convertNativeToDart_IDBKey(nativeKey) { | |
| 143 containsDate(object) { | |
| 144 if (object is DateTime) return true; | |
| 145 if (object is List) { | |
| 146 for (int i = 0; i < object.length; i++) { | |
| 147 if (containsDate(object[i])) return true; | |
| 148 } | |
| 149 } | |
| 150 return false; // number, string. | |
| 151 } | |
| 152 if (nativeKey is DateTime) { | |
| 153 throw new UnimplementedError('Key containing DateTime'); | |
| 154 } | |
| 155 // TODO: Cache conversion somewhere? | |
| 156 return nativeKey; | |
| 157 } | |
| 158 | |
| 159 /** | |
| 160 * Converts a Dart object into a valid IDBKey. | |
| 161 * | |
| 162 * May return the original input. Does not mutate input. | |
| 163 * | |
| 164 * If necessary, [dartKey] may be copied to ensure all lists are converted into | |
| 165 * JavaScript Arrays and Dart Dates into JavaScript Dates. | |
| 166 */ | |
| 167 _convertDartToNative_IDBKey(dartKey) { | |
| 168 // TODO: Implement. | |
| 169 return dartKey; | |
| 170 } | |
| 171 | |
| 172 | |
| 173 | |
| 174 /// May modify original. If so, action is idempotent. | |
| 175 _convertNativeToDart_IDBAny(object) { | |
| 176 return convertNativeToDart_AcceptStructuredClone(object, mustCopy: false); | |
| 177 } | |
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Chromium Code Reviews
Issue 2978213002:
Removed DARTIUM codegen for IDLS (sdk/lib/dartium) (Closed)
