localforage - npm Package Compare versions

Comparing version 1.2.0 to 1.2.1

bower.json

 {
   "name": "localforage",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "main": [
@@ -5,0 +5,0 @@ "dist/localforage.js"

component.json

 {
   "name": "localforage",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "dependencies": {
@@ -9,2 +9,3 @@ "then/promise": "5.0.0"
     "src/localforage.js",
+    "src/utils/serializer.js",
     "src/drivers/indexeddb.js",
@@ -11,0 +12,0 @@ "src/drivers/localstorage.js",

dist/localforage.min.js

@@ -1,1 +0,7 @@
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Gruntfile.js

@@ -15,2 +15,9 @@ /* jshint node:true */
 
+    var BANNER = '/*!\n' +
+                 '    localForage -- Offline Storage, Improved\n' +
+                 '    Version ' + grunt.file.readJSON('package.json').version + '\n' +
+                 '    https://mozilla.github.io/localForage\n' +
+                 '    (c) 2013-2015 Mozilla, Apache License 2.0\n' +
+                 '*/\n';
+
     grunt.initConfig({
@@ -26,2 +33,3 @@ concat: {
                         'bower_components/es6-promise/promise.js',
+                        'src/utils/**/*.js',
                         'src/drivers/**/*.js',
@@ -31,2 +39,3 @@ 'src/localforage.js'
                     'dist/localforage.nopromises.js': [
+                        'src/utils/**/*.js',
                         'src/drivers/**/*.js',
@@ -37,9 +46,3 @@ 'src/localforage.js'
                 options: {
-                    banner:
-                        '/*!\n' +
-                        '    localForage -- Offline Storage, Improved\n' +
-                        '    Version 1.2.0\n' +
-                        '    http://mozilla.github.io/localForage\n' +
-                        '    (c) 2013-2014 Mozilla, Apache License 2.0\n' +
-                        '*/\n'
+                    banner: BANNER
                 }
@@ -151,2 +154,5 @@ }
                     'site/localforage.min.js': ['dist/localforage.js']
+                },
+                options: {
+                    banner: BANNER
                 }
@@ -153,0 +159,0 @@ }

package.json

@@ -11,3 +11,3 @@ {
   ],
-  "version": "1.2.0",
+  "version": "1.2.1",
   "homepage": "https://github.com/mozilla/localForage",
@@ -14,0 +14,0 @@ "repository": {

README.md

 # localForage [![Build Status](https://secure.travis-ci.org/mozilla/localForage.png?branch=master)](http://travis-ci.org/mozilla/localForage)
 
-localForage is a JavaScript library that improves the offline experience of
-your web app by using asynchronous storage (via IndexedDB or WebSQL
-where available) with a simple, `localStorage`-like API.
+localForage is a fast and simple storage library for JavaScript. localForage
+improves the offline experience of your web app by using asynchronous storage
+(IndexedDB or WebSQL) with a simple, `localStorage`-like API.
 
 localForage uses localStorage in browsers with no IndexedDB or
-WebSQL support. Asynchronous storage is available in the current
-versions of all major browsers: Chrome, Firefox, IE, and Safari
-(including Safari Mobile). See below for detailed compatibility info.
+WebSQL support. See below for detailed compatibility info.
 
@@ -20,6 +18,11 @@ To use localForage, just drop a single JavaScript file into your page:
 Download the [latest localForage from GitHub](https://github.com/mozilla/localForage/releases/latest), or install with
-[npm](https://www.npmjs.org/) or [bower](http://bower.io):
+[npm](https://www.npmjs.org/):
 
 ```bash
 npm install localforage
+```
+
+or [bower](http://bower.io):
+
+```bash
 bower install localforage
@@ -30,28 +33,10 @@ ```
 
-## Supported Browsers/Platforms
+Read about [supported browsers on the wiki][supported browsers].
 
-localForage works in all modern browsers (IE 8 and above).
-_Asynchronous storage_ is available in all browsers **in bold**, with
-localStorage fallback in parentheses.
+[supported browsers]: https://github.com/mozilla/localForage/wiki/Supported-Browsers-Platforms
 
-* **Android Browser 2.1**
-* **Blackberry 7**
-* **Chrome 23** (Chrome 4.0+ with localStorage)
-* **Chrome for Android 32**
-* **Firefox 10** (Firefox 3.5+ with localStorage)
-* **Firefox for Android 25**
-* **Firefox OS 1.0**
-* **IE 10** (IE 8+ with localStorage)
-* **IE Mobile 10**
-* **Opera 15** (Opera 10.5+ with localStorage)
-* **Opera Mobile 11**
-* **Phonegap/Apache Cordova 1.2.0**
-* **Safari 3.1** (includes Mobile Safari)
-
-Different browsers have [different storage limits](http://www.html5rocks.com/en/tutorials/offline/quota-research/#toc-overview), so plan accordingly.
-
 ## Support
 
 Lost? Need help? Try the
-[localForage API documentation](http://mozilla.github.io/localForage).
+[localForage API documentation](https://mozilla.github.io/localForage).
 
@@ -157,41 +142,6 @@ If you're stuck using the library, running the tests, or want to contribute
 
-## Driver Selection (i.e. forcing localStorage)
-
-For development, it can be easier to use the
-slower--but easier to debug--localStorage driver (mostly because localStorage
-can easily be inspected from the console). You can use the `setDriver()` method
-to change the driver localForage is using at any time.
-
-```javascript
-// If you aren't using JS modules, things are loaded synchronously.
-localforage.setDriver(localforage.LOCALSTORAGE);
-alert(localforage.driver());
-  => 'localStorageWrapper'
-
-// If you're using modules, things load asynchronously, so you should use
-// callbacks or promises to ensure things have loaded.
-localforage.setDriver(localforage.LOCALSTORAGE, function() {
-    alert(localforage.driver());
-});
-  => 'localStorageWrapper'
-
-// The promises version:
-localforage.setDriver(localforage.LOCALSTORAGE).then(function() {
-    alert(localforage.driver());
-});
-  => 'localStorageWrapper'
-```
-
-You can actually force any available driver with this method, but given that
-the best driver will be selected automatically when the library is loaded, this
-method is mostly useful in forcing localStorage.
-
-Note that trying to load a driver unavailable on the current browser (like
-trying to load WebSQL in Gecko) will fail and the previously loaded "best
-choice" will continue to be used.
-
 ## Configuration
 
 You can set database information with the `config()` method.
-Available options are `driver`, `name`, `storeName`, `version`, and
+Available options are `driver`, `name`, `storeName`, `version`, `size`, and
 `description`.
@@ -217,5 +167,3 @@
 
-You can use localForage with [RequireJS](http://requirejs.org/), and even though
-each driver will be loaded asynchronously with a `require()` call, you can use
-localForage without having to confirm that it's ready:
+You can use localForage with [RequireJS](http://requirejs.org/):
 
@@ -232,5 +180,2 @@ ```javascript
 
-In pre-1.0 versions you had to call `.ready()` to make sure the code was loaded,
-but this is no longer necessary.
-
 ## Web Workers
@@ -262,2 +207,6 @@
 
+There is a [list of custom drivers on the wiki][custom drivers].
+
+[custom drivers]: https://github.com/mozilla/localForage/wiki/Custom-Drivers
+
 # Working on localForage
@@ -291,11 +240,6 @@
 a browser environment. Local tests are run on a headless WebKit (using
-[PhantomJS](http://phantomjs.org)), but cross-browser tests are run using
-[Sauce Labs](https://saucelabs.com/).
+[PhantomJS](http://phantomjs.org)).
 
-If you have Sauce Labs credentials on your machine, localForage will attempt
-to connect to Sauce Labs to run the tests on Sauce Labs as well. To skip
-Sauce Labs tests, run `grunt test:local`.
-
 When you submit a pull request, tests will be run against all browsers that
-localForage supports.
+localForage supports on Travis CI using [Sauce Labs](https://saucelabs.com/).
 
@@ -309,3 +253,3 @@ # License
 
-Copyright (c) 2013-2014 [Mozilla](https://mozilla.org)
+Copyright (c) 2013-2015 [Mozilla](https://mozilla.org)
 ([Contributors](https://github.com/mozilla/localForage/graphs/contributors)).

site/index.md

@@ -306,3 +306,3 @@ ---
 ```javascript
-localforage.iterate(function(value, key) {
+localforage.iterate(function(value, key, iterationNumber) {
     // Resulting key/value pair -- this callback
@@ -317,3 +317,3 @@ // will be executed for every item in the
 // The same code, but using ES6 Promises.
-localforage.iterate(function(value, key) {
+localforage.iterate(function(value, key, iterationNumber) {
     // Resulting key/value pair -- this callback
@@ -328,5 +328,4 @@ // will be executed for every item in the
 // Exit the iteration early:
-var iterations = 0;
-localforage.iterate(function(value, key) {
-    if (iterations < 3) {
+localforage.iterate(function(value, key, iterationNumber) {
+    if (iterationNumber < 3) {
         console.log([key, value]);
@@ -336,4 +335,2 @@ } else {
     }
-
-    iterations++;
 }, function(result) {
@@ -345,5 +342,4 @@ console.log('Iteration has completed, last iterated pair:');
 // The same code for early exit, but using ES6 Promises.
-var iterations = 0;
-localforage.iterate(function(value, key) {
-    if (iterations < 3) {
+localforage.iterate(function(value, key, iterationNumber) {
+    if (iterationNumber < 3) {
         console.log([key, value]);
@@ -353,4 +349,2 @@ } else {
     }
-
-    iterations++;
 }).then(function(result) {
@@ -363,3 +357,3 @@ console.log('Iteration has completed, last iterated pair:');
 ```coffeescript
-localforage.iterate (value, key) ->
+localforage.iterate (value, key, iterationNumber) ->
   # Resulting key/value pair -- this callback
@@ -374,3 +368,3 @@ # will be executed for every item in the
 # The same code, but using ES6 Promises.
-localforage.iterate (value, key) ->
+localforage.iterate (value, key, iterationNumber) ->
   # Resulting key/value pair -- this callback
@@ -385,8 +379,5 @@ # will be executed for every item in the
 # Exit the iteration early:
-iterations = 0
-localforage.iterate (value, key) ->
-  if iterations < 3
+localforage.iterate (value, key, iterationNumber) ->
+  if iterationNumber < 3
     console.log [key, value]
-
-    iterations++
     return
@@ -400,8 +391,5 @@ else
 # The same code for early exit, but using ES6 Promises.
-iterations = 0
-localforage.iterate((value, key) ->
-  if iterations < 3
+localforage.iterate((value, key, iterationNumber) ->
+  if iterationNumber < 3
     console.log [key, value]
-
-    iterations++
     return
@@ -419,2 +407,8 @@ else
 
+`iteratorCallback` is called once for each pair, with the following arguments:
+
+1. value
+2. key
+3. iterationNumber - one-based number
+
 <aside class="notice">
@@ -421,0 +415,0 @@ <code>iterate</code> supports early exit by returning non `undefined`

site/localforage.min.js

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src/drivers/indexeddb.js

@@ -100,2 +100,3 @@ // Some code originally from async_storage.js in
                 var req = store.openCursor();
+                var iterationNumber = 1;
 
@@ -106,3 +107,3 @@ req.onsuccess = function() {
                     if (cursor) {
-                        var result = iterator(cursor.value, cursor.key);
+                        var result = iterator(cursor.value, cursor.key, iterationNumber++);
 
@@ -143,4 +144,4 @@ if (result !== void(0)) {
                 var dbInfo = self._dbInfo;
-                var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
-                              .objectStore(dbInfo.storeName);
+                var transaction = dbInfo.db.transaction(dbInfo.storeName, 'readwrite');
+                var store = transaction.objectStore(dbInfo.storeName);
 
@@ -156,3 +157,3 @@ // The reason we don't _save_ null is because IE 10 does
                 var req = store.put(value, key);
-                req.onsuccess = function() {
+                transaction.oncomplete = function() {
                     // Cast to undefined so the value passed to
@@ -170,3 +171,3 @@ // callback/promise is the same as what one would get out
                 };
-                req.onerror = function() {
+                transaction.onabort = transaction.onerror = function() {
                     reject(req.error);
@@ -194,4 +195,4 @@ };
                 var dbInfo = self._dbInfo;
-                var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
-                              .objectStore(dbInfo.storeName);
+                var transaction = dbInfo.db.transaction(dbInfo.storeName, 'readwrite');
+                var store = transaction.objectStore(dbInfo.storeName);
 
@@ -204,7 +205,7 @@ // We use a Grunt task to make this safe for IE and some
                 var req = store.delete(key);
-                req.onsuccess = function() {
+                transaction.oncomplete = function() {
                     resolve();
                 };
 
-                req.onerror = function() {
+                transaction.onerror = function() {
                     reject(req.error);
@@ -216,3 +217,3 @@ };
                 // "QuotaExceededError".
-                req.onabort = function(event) {
+                transaction.onabort = function(event) {
                     var error = event.target.error;
@@ -236,11 +237,11 @@ if (error === 'QuotaExceededError') {
                 var dbInfo = self._dbInfo;
-                var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
-                              .objectStore(dbInfo.storeName);
+                var transaction = dbInfo.db.transaction(dbInfo.storeName, 'readwrite');
+                var store = transaction.objectStore(dbInfo.storeName);
                 var req = store.clear();
 
-                req.onsuccess = function() {
+                transaction.oncomplete = function() {
                     resolve();
                 };
 
-                req.onerror = function() {
+                transaction.onabort = transaction.onerror = function() {
                     reject(req.error);
@@ -247,0 +248,0 @@ };

src/drivers/localstorage.js

@@ -11,2 +11,5 @@ // If IndexedDB isn't available, we'll fall back to localStorage.
                   require('promise') : this.Promise;
+
+    var globalObject = this;
+    var serializer = null;
     var localStorage = null;
@@ -32,2 +35,20 @@
 
+    var ModuleType = {
+        DEFINE: 1,
+        EXPORT: 2,
+        WINDOW: 3
+    };
+
+    // Attaching to window (i.e. no module loader) is the assumed,
+    // simple default.
+    var moduleType = ModuleType.WINDOW;
+
+    // Find out what kind of module setup we have; if none, we'll just attach
+    // localForage to the main window.
+    if (typeof define === 'function' && define.amd) {
+        moduleType = ModuleType.DEFINE;
+    } else if (typeof module !== 'undefined' && module.exports) {
+        moduleType = ModuleType.EXPORT;
+    }
+
     // Config the localStorage backend, using options set in the config.
@@ -46,22 +67,21 @@ function _initStorage(options) {
         self._dbInfo = dbInfo;
-        return Promise.resolve();
-    }
 
-    var SERIALIZED_MARKER = '__lfsc__:';
-    var SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER.length;
+        var serializerPromise = new Promise(function(resolve/*, reject*/) {
+            // We allow localForage to be declared as a module or as a
+            // library available without AMD/require.js.
+            if (moduleType === ModuleType.DEFINE) {
+                require(['localforageSerializer'], resolve);
+            } else if (moduleType === ModuleType.EXPORT) {
+                // Making it browserify friendly
+                resolve(require('./../utils/serializer'));
+            } else {
+                resolve(globalObject.localforageSerializer);
+            }
+        });
 
-    // OMG the serializations!
-    var TYPE_ARRAYBUFFER = 'arbf';
-    var TYPE_BLOB = 'blob';
-    var TYPE_INT8ARRAY = 'si08';
-    var TYPE_UINT8ARRAY = 'ui08';
-    var TYPE_UINT8CLAMPEDARRAY = 'uic8';
-    var TYPE_INT16ARRAY = 'si16';
-    var TYPE_INT32ARRAY = 'si32';
-    var TYPE_UINT16ARRAY = 'ur16';
-    var TYPE_UINT32ARRAY = 'ui32';
-    var TYPE_FLOAT32ARRAY = 'fl32';
-    var TYPE_FLOAT64ARRAY = 'fl64';
-    var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH +
-                                        TYPE_ARRAYBUFFER.length;
+        return serializerPromise.then(function(lib) {
+            serializer = lib;
+            return Promise.resolve();
+        });
+    }
 
@@ -72,16 +92,12 @@ // Remove all keys from the datastore, effectively destroying all data in
         var self = this;
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                var keyPrefix = self._dbInfo.keyPrefix;
+        var promise = self.ready().then(function() {
+            var keyPrefix = self._dbInfo.keyPrefix;
 
-                for (var i = localStorage.length - 1; i >= 0; i--) {
-                    var key = localStorage.key(i);
+            for (var i = localStorage.length - 1; i >= 0; i--) {
+                var key = localStorage.key(i);
 
-                    if (key.indexOf(keyPrefix) === 0) {
-                        localStorage.removeItem(key);
-                    }
+                if (key.indexOf(keyPrefix) === 0) {
+                    localStorage.removeItem(key);
                 }
-
-                resolve();
-            }).catch(reject);
+            }
         });
@@ -106,21 +122,15 @@
 
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                try {
-                    var dbInfo = self._dbInfo;
-                    var result = localStorage.getItem(dbInfo.keyPrefix + key);
+        var promise = self.ready().then(function() {
+            var dbInfo = self._dbInfo;
+            var result = localStorage.getItem(dbInfo.keyPrefix + key);
 
-                    // If a result was found, parse it from the serialized
-                    // string into a JS object. If result isn't truthy, the key
-                    // is likely undefined and we'll pass it straight to the
-                    // callback.
-                    if (result) {
-                        result = _deserialize(result);
-                    }
+            // If a result was found, parse it from the serialized
+            // string into a JS object. If result isn't truthy, the key
+            // is likely undefined and we'll pass it straight to the
+            // callback.
+            if (result) {
+                result = serializer.deserialize(result);
+            }
 
-                    resolve(result);
-                } catch (e) {
-                    reject(e);
-                }
-            }).catch(reject);
+            return result;
         });
@@ -136,34 +146,25 @@
 
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                try {
-                    var keyPrefix = self._dbInfo.keyPrefix;
-                    var keyPrefixLength = keyPrefix.length;
-                    var length = localStorage.length;
+        var promise = self.ready().then(function() {
+            var keyPrefix = self._dbInfo.keyPrefix;
+            var keyPrefixLength = keyPrefix.length;
+            var length = localStorage.length;
 
-                    for (var i = 0; i < length; i++) {
-                        var key = localStorage.key(i);
-                        var value = localStorage.getItem(key);
+            for (var i = 0; i < length; i++) {
+                var key = localStorage.key(i);
+                var value = localStorage.getItem(key);
 
-                        // If a result was found, parse it from the serialized
-                        // string into a JS object. If result isn't truthy, the
-                        // key is likely undefined and we'll pass it straight
-                        // to the iterator.
-                        if (value) {
-                            value = _deserialize(value);
-                        }
+                // If a result was found, parse it from the serialized
+                // string into a JS object. If result isn't truthy, the
+                // key is likely undefined and we'll pass it straight
+                // to the iterator.
+                if (value) {
+                    value = serializer.deserialize(value);
+                }
 
-                        value = iterator(value, key.substring(keyPrefixLength));
+                value = iterator(value, key.substring(keyPrefixLength), i + 1);
 
-                        if (value !== void(0)) {
-                            resolve(value);
-                            return;
-                        }
-                    }
-
-                    resolve();
-                } catch (e) {
-                    reject(e);
+                if (value !== void(0)) {
+                    return value;
                 }
-            }).catch(reject);
+            }
         });
@@ -178,19 +179,17 @@
         var self = this;
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                var dbInfo = self._dbInfo;
-                var result;
-                try {
-                    result = localStorage.key(n);
-                } catch (error) {
-                    result = null;
-                }
+        var promise = self.ready().then(function() {
+            var dbInfo = self._dbInfo;
+            var result;
+            try {
+                result = localStorage.key(n);
+            } catch (error) {
+                result = null;
+            }
 
-                // Remove the prefix from the key, if a key is found.
-                if (result) {
-                    result = result.substring(dbInfo.keyPrefix.length);
-                }
+            // Remove the prefix from the key, if a key is found.
+            if (result) {
+                result = result.substring(dbInfo.keyPrefix.length);
+            }
 
-                resolve(result);
-            }).catch(reject);
+            return result;
         });
@@ -204,16 +203,14 @@
         var self = this;
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                var dbInfo = self._dbInfo;
-                var length = localStorage.length;
-                var keys = [];
+        var promise = self.ready().then(function() {
+            var dbInfo = self._dbInfo;
+            var length = localStorage.length;
+            var keys = [];
 
-                for (var i = 0; i < length; i++) {
-                    if (localStorage.key(i).indexOf(dbInfo.keyPrefix) === 0) {
-                        keys.push(localStorage.key(i).substring(dbInfo.keyPrefix.length));
-                    }
+            for (var i = 0; i < length; i++) {
+                if (localStorage.key(i).indexOf(dbInfo.keyPrefix) === 0) {
+                    keys.push(localStorage.key(i).substring(dbInfo.keyPrefix.length));
                 }
+            }
 
-                resolve(keys);
-            }).catch(reject);
+            return keys;
         });
@@ -228,6 +225,4 @@
         var self = this;
-        var promise = new Promise(function(resolve, reject) {
-            self.keys().then(function(keys) {
-                resolve(keys.length);
-            }).catch(reject);
+        var promise = self.keys().then(function(keys) {
+            return keys.length;
         });
@@ -250,9 +245,5 @@
 
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                var dbInfo = self._dbInfo;
-                localStorage.removeItem(dbInfo.keyPrefix + key);
-
-                resolve();
-            }).catch(reject);
+        var promise = self.ready().then(function() {
+            var dbInfo = self._dbInfo;
+            localStorage.removeItem(dbInfo.keyPrefix + key);
         });
@@ -264,157 +255,2 @@
 
-    // Deserialize data we've inserted into a value column/field. We place
-    // special markers into our strings to mark them as encoded; this isn't
-    // as nice as a meta field, but it's the only sane thing we can do whilst
-    // keeping localStorage support intact.
-    //
-    // Oftentimes this will just deserialize JSON content, but if we have a
-    // special marker (SERIALIZED_MARKER, defined above), we will extract
-    // some kind of arraybuffer/binary data/typed array out of the string.
-    function _deserialize(value) {
-        // If we haven't marked this string as being specially serialized (i.e.
-        // something other than serialized JSON), we can just return it and be
-        // done with it.
-        if (value.substring(0,
-            SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
-            return JSON.parse(value);
-        }
-
-        // The following code deals with deserializing some kind of Blob or
-        // TypedArray. First we separate out the type of data we're dealing
-        // with from the data itself.
-        var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);
-        var type = value.substring(SERIALIZED_MARKER_LENGTH,
-                                   TYPE_SERIALIZED_MARKER_LENGTH);
-
-        // Fill the string into a ArrayBuffer.
-        // 2 bytes for each char.
-        var buffer = new ArrayBuffer(serializedString.length * 2);
-        var bufferView = new Uint16Array(buffer);
-        for (var i = serializedString.length - 1; i >= 0; i--) {
-            bufferView[i] = serializedString.charCodeAt(i);
-        }
-
-        // Return the right type based on the code/type set during
-        // serialization.
-        switch (type) {
-            case TYPE_ARRAYBUFFER:
-                return buffer;
-            case TYPE_BLOB:
-                return new Blob([buffer]);
-            case TYPE_INT8ARRAY:
-                return new Int8Array(buffer);
-            case TYPE_UINT8ARRAY:
-                return new Uint8Array(buffer);
-            case TYPE_UINT8CLAMPEDARRAY:
-                return new Uint8ClampedArray(buffer);
-            case TYPE_INT16ARRAY:
-                return new Int16Array(buffer);
-            case TYPE_UINT16ARRAY:
-                return new Uint16Array(buffer);
-            case TYPE_INT32ARRAY:
-                return new Int32Array(buffer);
-            case TYPE_UINT32ARRAY:
-                return new Uint32Array(buffer);
-            case TYPE_FLOAT32ARRAY:
-                return new Float32Array(buffer);
-            case TYPE_FLOAT64ARRAY:
-                return new Float64Array(buffer);
-            default:
-                throw new Error('Unkown type: ' + type);
-        }
-    }
-
-    // Converts a buffer to a string to store, serialized, in the backend
-    // storage library.
-    function _bufferToString(buffer) {
-        var str = '';
-        var uint16Array = new Uint16Array(buffer);
-
-        try {
-            str = String.fromCharCode.apply(null, uint16Array);
-        } catch (e) {
-            // This is a fallback implementation in case the first one does
-            // not work. This is required to get the phantomjs passing...
-            for (var i = 0; i < uint16Array.length; i++) {
-                str += String.fromCharCode(uint16Array[i]);
-            }
-        }
-
-        return str;
-    }
-
-    // Serialize a value, afterwards executing a callback (which usually
-    // instructs the `setItem()` callback/promise to be executed). This is how
-    // we store binary data with localStorage.
-    function _serialize(value, callback) {
-        var valueString = '';
-        if (value) {
-            valueString = value.toString();
-        }
-
-        // Cannot use `value instanceof ArrayBuffer` or such here, as these
-        // checks fail when running the tests using casper.js...
-        //
-        // TODO: See why those tests fail and use a better solution.
-        if (value && (value.toString() === '[object ArrayBuffer]' ||
-                      value.buffer &&
-                      value.buffer.toString() === '[object ArrayBuffer]')) {
-            // Convert binary arrays to a string and prefix the string with
-            // a special marker.
-            var buffer;
-            var marker = SERIALIZED_MARKER;
-
-            if (value instanceof ArrayBuffer) {
-                buffer = value;
-                marker += TYPE_ARRAYBUFFER;
-            } else {
-                buffer = value.buffer;
-
-                if (valueString === '[object Int8Array]') {
-                    marker += TYPE_INT8ARRAY;
-                } else if (valueString === '[object Uint8Array]') {
-                    marker += TYPE_UINT8ARRAY;
-                } else if (valueString === '[object Uint8ClampedArray]') {
-                    marker += TYPE_UINT8CLAMPEDARRAY;
-                } else if (valueString === '[object Int16Array]') {
-                    marker += TYPE_INT16ARRAY;
-                } else if (valueString === '[object Uint16Array]') {
-                    marker += TYPE_UINT16ARRAY;
-                } else if (valueString === '[object Int32Array]') {
-                    marker += TYPE_INT32ARRAY;
-                } else if (valueString === '[object Uint32Array]') {
-                    marker += TYPE_UINT32ARRAY;
-                } else if (valueString === '[object Float32Array]') {
-                    marker += TYPE_FLOAT32ARRAY;
-                } else if (valueString === '[object Float64Array]') {
-                    marker += TYPE_FLOAT64ARRAY;
-                } else {
-                    callback(new Error('Failed to get type for BinaryArray'));
-                }
-            }
-
-            callback(marker + _bufferToString(buffer));
-        } else if (valueString === '[object Blob]') {
-            // Conver the blob to a binaryArray and then to a string.
-            var fileReader = new FileReader();
-
-            fileReader.onload = function() {
-                var str = _bufferToString(this.result);
-
-                callback(SERIALIZED_MARKER + TYPE_BLOB + str);
-            };
-
-            fileReader.readAsArrayBuffer(value);
-        } else {
-            try {
-                callback(JSON.stringify(value));
-            } catch (e) {
-                window.console.error("Couldn't convert value into a JSON " +
-                                     'string: ', value);
-
-                callback(e);
-            }
-        }
-    }
-
     // Set a key's value and run an optional callback once the value is set.
@@ -434,14 +270,14 @@ // Unlike Gaia's implementation, the callback function is passed the value,
 
-        var promise = new Promise(function(resolve, reject) {
-            self.ready().then(function() {
-                // Convert undefined values to null.
-                // https://github.com/mozilla/localForage/pull/42
-                if (value === undefined) {
-                    value = null;
-                }
+        var promise = self.ready().then(function() {
+            // Convert undefined values to null.
+            // https://github.com/mozilla/localForage/pull/42
+            if (value === undefined) {
+                value = null;
+            }
 
-                // Save the original value to pass to the callback.
-                var originalValue = value;
+            // Save the original value to pass to the callback.
+            var originalValue = value;
 
-                _serialize(value, function(value, error) {
+            return new Promise(function(resolve, reject) {
+                serializer.serialize(value, function(value, error) {
                     if (error) {
@@ -453,2 +289,3 @@ reject(error);
                             localStorage.setItem(dbInfo.keyPrefix + key, value);
+                            resolve(originalValue);
                         } catch (e) {
@@ -461,8 +298,7 @@ // localStorage capacity exceeded.
                             }
+                            reject(e);
                         }
-
-                        resolve(originalValue);
                     }
                 });
-            }).catch(reject);
+            });
         });
@@ -498,7 +334,7 @@
 
-    if (typeof define === 'function' && define.amd) {
+    if (moduleType === ModuleType.DEFINE) {
         define('localStorageWrapper', function() {
             return localStorageWrapper;
         });
-    } else if (typeof module !== 'undefined' && module.exports) {
+    } else if (moduleType === ModuleType.EXPORT) {
         module.exports = localStorageWrapper;
@@ -505,0 +341,0 @@ } else {

src/drivers/websql.js

@@ -13,7 +13,2 @@ /*
 
-    // Sadly, the best way to save binary data in WebSQL is Base64 serializing
-    // it, so this is how we store it to prevent very strange errors with less
-    // verbose ways of binary <-> string data storage.
-    var BASE_CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
-
     // Promises!
@@ -23,22 +18,6 @@ var Promise = (typeof module !== 'undefined' && module.exports) ?
 
+    var globalObject = this;
+    var serializer = null;
     var openDatabase = this.openDatabase;
 
-    var SERIALIZED_MARKER = '__lfsc__:';
-    var SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER.length;
-
-    // OMG the serializations!
-    var TYPE_ARRAYBUFFER = 'arbf';
-    var TYPE_BLOB = 'blob';
-    var TYPE_INT8ARRAY = 'si08';
-    var TYPE_UINT8ARRAY = 'ui08';
-    var TYPE_UINT8CLAMPEDARRAY = 'uic8';
-    var TYPE_INT16ARRAY = 'si16';
-    var TYPE_INT32ARRAY = 'si32';
-    var TYPE_UINT16ARRAY = 'ur16';
-    var TYPE_UINT32ARRAY = 'ui32';
-    var TYPE_FLOAT32ARRAY = 'fl32';
-    var TYPE_FLOAT64ARRAY = 'fl64';
-    var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH +
-                                        TYPE_ARRAYBUFFER.length;
-
     // If WebSQL methods aren't available, we can stop now.
@@ -49,2 +28,20 @@ if (!openDatabase) {
 
+    var ModuleType = {
+        DEFINE: 1,
+        EXPORT: 2,
+        WINDOW: 3
+    };
+
+    // Attaching to window (i.e. no module loader) is the assumed,
+    // simple default.
+    var moduleType = ModuleType.WINDOW;
+
+    // Find out what kind of module setup we have; if none, we'll just attach
+    // localForage to the main window.
+    if (typeof define === 'function' && define.amd) {
+        moduleType = ModuleType.DEFINE;
+    } else if (typeof module !== 'undefined' && module.exports) {
+        moduleType = ModuleType.EXPORT;
+    }
+
     // Open the WebSQL database (automatically creates one if one didn't
@@ -65,3 +62,16 @@ // previously exist), using any options set in the config.
 
-        return new Promise(function(resolve, reject) {
+        var serializerPromise = new Promise(function(resolve/*, reject*/) {
+            // We allow localForage to be declared as a module or as a
+            // library available without AMD/require.js.
+            if (moduleType === ModuleType.DEFINE) {
+                require(['localforageSerializer'], resolve);
+            } else if (moduleType === ModuleType.EXPORT) {
+                // Making it browserify friendly
+                resolve(require('./../utils/serializer'));
+            } else {
+                resolve(globalObject.localforageSerializer);
+            }
+        });
+
+        var dbInfoPromise = new Promise(function(resolve, reject) {
             // Open the database; the openDatabase API will automatically
@@ -73,8 +83,5 @@ // create it for us if it doesn't exist.
             } catch (e) {
-                return self.setDriver('localStorageWrapper')
-                    .then(function() {
-                        return self._initStorage(options);
-                    })
-                    .then(resolve)
-                    .catch(reject);
+                return self.setDriver(self.LOCALSTORAGE).then(function() {
+                    return self._initStorage(options);
+                }).then(resolve).catch(reject);
             }
@@ -94,2 +101,7 @@
         });
+
+        return serializerPromise.then(function(lib) {
+            serializer = lib;
+            return dbInfoPromise;
+        });
     }
@@ -120,3 +132,3 @@
                         if (result) {
-                            result = _deserialize(result);
+                            result = serializer.deserialize(result);
                         }
@@ -157,6 +169,6 @@
                                 if (result) {
-                                    result = _deserialize(result);
+                                    result = serializer.deserialize(result);
                                 }
 
-                                result = iterator(result, item.key);
+                                result = iterator(result, item.key, i + 1);
 
@@ -205,3 +217,3 @@ // void(0) prevents problems with redefinition
 
-                _serialize(value, function(value, error) {
+                serializer.serialize(value, function(value, error) {
                     if (error) {
@@ -381,184 +393,2 @@ reject(error);
 
-    // Converts a buffer to a string to store, serialized, in the backend
-    // storage library.
-    function _bufferToString(buffer) {
-        // base64-arraybuffer
-        var bytes = new Uint8Array(buffer);
-        var i;
-        var base64String = '';
-
-        for (i = 0; i < bytes.length; i += 3) {
-            /*jslint bitwise: true */
-            base64String += BASE_CHARS[bytes[i] >> 2];
-            base64String += BASE_CHARS[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
-            base64String += BASE_CHARS[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
-            base64String += BASE_CHARS[bytes[i + 2] & 63];
-        }
-
-        if ((bytes.length % 3) === 2) {
-            base64String = base64String.substring(0, base64String.length - 1) + '=';
-        } else if (bytes.length % 3 === 1) {
-            base64String = base64String.substring(0, base64String.length - 2) + '==';
-        }
-
-        return base64String;
-    }
-
-    // Deserialize data we've inserted into a value column/field. We place
-    // special markers into our strings to mark them as encoded; this isn't
-    // as nice as a meta field, but it's the only sane thing we can do whilst
-    // keeping localStorage support intact.
-    //
-    // Oftentimes this will just deserialize JSON content, but if we have a
-    // special marker (SERIALIZED_MARKER, defined above), we will extract
-    // some kind of arraybuffer/binary data/typed array out of the string.
-    function _deserialize(value) {
-        // If we haven't marked this string as being specially serialized (i.e.
-        // something other than serialized JSON), we can just return it and be
-        // done with it.
-        if (value.substring(0,
-                            SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
-            return JSON.parse(value);
-        }
-
-        // The following code deals with deserializing some kind of Blob or
-        // TypedArray. First we separate out the type of data we're dealing
-        // with from the data itself.
-        var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);
-        var type = value.substring(SERIALIZED_MARKER_LENGTH,
-                                   TYPE_SERIALIZED_MARKER_LENGTH);
-
-        // Fill the string into a ArrayBuffer.
-        var bufferLength = serializedString.length * 0.75;
-        var len = serializedString.length;
-        var i;
-        var p = 0;
-        var encoded1, encoded2, encoded3, encoded4;
-
-        if (serializedString[serializedString.length - 1] === '=') {
-            bufferLength--;
-            if (serializedString[serializedString.length - 2] === '=') {
-                bufferLength--;
-            }
-        }
-
-        var buffer = new ArrayBuffer(bufferLength);
-        var bytes = new Uint8Array(buffer);
-
-        for (i = 0; i < len; i+=4) {
-            encoded1 = BASE_CHARS.indexOf(serializedString[i]);
-            encoded2 = BASE_CHARS.indexOf(serializedString[i+1]);
-            encoded3 = BASE_CHARS.indexOf(serializedString[i+2]);
-            encoded4 = BASE_CHARS.indexOf(serializedString[i+3]);
-
-            /*jslint bitwise: true */
-            bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
-            bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
-            bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
-        }
-
-        // Return the right type based on the code/type set during
-        // serialization.
-        switch (type) {
-            case TYPE_ARRAYBUFFER:
-                return buffer;
-            case TYPE_BLOB:
-                return new Blob([buffer]);
-            case TYPE_INT8ARRAY:
-                return new Int8Array(buffer);
-            case TYPE_UINT8ARRAY:
-                return new Uint8Array(buffer);
-            case TYPE_UINT8CLAMPEDARRAY:
-                return new Uint8ClampedArray(buffer);
-            case TYPE_INT16ARRAY:
-                return new Int16Array(buffer);
-            case TYPE_UINT16ARRAY:
-                return new Uint16Array(buffer);
-            case TYPE_INT32ARRAY:
-                return new Int32Array(buffer);
-            case TYPE_UINT32ARRAY:
-                return new Uint32Array(buffer);
-            case TYPE_FLOAT32ARRAY:
-                return new Float32Array(buffer);
-            case TYPE_FLOAT64ARRAY:
-                return new Float64Array(buffer);
-            default:
-                throw new Error('Unkown type: ' + type);
-        }
-    }
-
-    // Serialize a value, afterwards executing a callback (which usually
-    // instructs the `setItem()` callback/promise to be executed). This is how
-    // we store binary data with localStorage.
-    function _serialize(value, callback) {
-        var valueString = '';
-        if (value) {
-            valueString = value.toString();
-        }
-
-        // Cannot use `value instanceof ArrayBuffer` or such here, as these
-        // checks fail when running the tests using casper.js...
-        //
-        // TODO: See why those tests fail and use a better solution.
-        if (value && (value.toString() === '[object ArrayBuffer]' ||
-                      value.buffer &&
-                      value.buffer.toString() === '[object ArrayBuffer]')) {
-            // Convert binary arrays to a string and prefix the string with
-            // a special marker.
-            var buffer;
-            var marker = SERIALIZED_MARKER;
-
-            if (value instanceof ArrayBuffer) {
-                buffer = value;
-                marker += TYPE_ARRAYBUFFER;
-            } else {
-                buffer = value.buffer;
-
-                if (valueString === '[object Int8Array]') {
-                    marker += TYPE_INT8ARRAY;
-                } else if (valueString === '[object Uint8Array]') {
-                    marker += TYPE_UINT8ARRAY;
-                } else if (valueString === '[object Uint8ClampedArray]') {
-                    marker += TYPE_UINT8CLAMPEDARRAY;
-                } else if (valueString === '[object Int16Array]') {
-                    marker += TYPE_INT16ARRAY;
-                } else if (valueString === '[object Uint16Array]') {
-                    marker += TYPE_UINT16ARRAY;
-                } else if (valueString === '[object Int32Array]') {
-                    marker += TYPE_INT32ARRAY;
-                } else if (valueString === '[object Uint32Array]') {
-                    marker += TYPE_UINT32ARRAY;
-                } else if (valueString === '[object Float32Array]') {
-                    marker += TYPE_FLOAT32ARRAY;
-                } else if (valueString === '[object Float64Array]') {
-                    marker += TYPE_FLOAT64ARRAY;
-                } else {
-                    callback(new Error('Failed to get type for BinaryArray'));
-                }
-            }
-
-            callback(marker + _bufferToString(buffer));
-        } else if (valueString === '[object Blob]') {
-            // Conver the blob to a binaryArray and then to a string.
-            var fileReader = new FileReader();
-
-            fileReader.onload = function() {
-                var str = _bufferToString(this.result);
-
-                callback(SERIALIZED_MARKER + TYPE_BLOB + str);
-            };
-
-            fileReader.readAsArrayBuffer(value);
-        } else {
-            try {
-                callback(JSON.stringify(value));
-            } catch (e) {
-                window.console.error("Couldn't convert value into a JSON " +
-                                     'string: ', value);
-
-                callback(null, e);
-            }
-        }
-    }
-
     function executeCallback(promise, callback) {
@@ -587,7 +417,7 @@ if (callback) {
 
-    if (typeof define === 'function' && define.amd) {
+    if (moduleType === ModuleType.DEFINE) {
         define('webSQLStorage', function() {
             return webSQLStorage;
         });
-    } else if (typeof module !== 'undefined' && module.exports) {
+    } else if (moduleType === ModuleType.EXPORT) {
         module.exports = webSQLStorage;
@@ -594,0 +424,0 @@ } else {

test/test.api.js

@@ -40,2 +40,3 @@ /* global afterEach:true, before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true, Promise:true, require:true */
        appropriateDriver + ')', function(done) {
+        this.timeout(10000);
         localforage.ready().then(function() {
@@ -88,3 +89,5 @@ expect(localforage.driver()).to.be(appropriateDriver);
             localStorage.clear();
-            localforage.clear(done);
+            localforage.ready().then(function() {
+                localforage.clear(done);
+            });
         });
@@ -151,9 +154,16 @@
                             var accumulator = {};
+                            var iterationNumbers = [];
 
-                            localforage.iterate(function(value, key) {
+                            localforage.iterate(function(value, key, iterationNumber) {
                                 accumulator[key] = value;
+                                iterationNumbers.push(iterationNumber);
                             }, function() {
-                                expect(accumulator.officeX).to.be('InitechX');
-                                expect(accumulator.officeY).to.be('InitechY');
-                                done();
+                                try {
+                                    expect(accumulator.officeX).to.be('InitechX');
+                                    expect(accumulator.officeY).to.be('InitechY');
+                                    expect(iterationNumbers).to.eql([1, 2]);
+                                    done();
+                                } catch (e) {
+                                    done(e);
+                                }
                             });
@@ -166,7 +176,7 @@ });
 
-        it('should iterate [promise]', function(done) {
+        it('should iterate [promise]', function() {
             var accumulator = {};
-            var message = 'Return defined value to break further iteration';
+            var iterationNumbers = [];
 
-            localforage.setItem('officeX', 'InitechX').then(function(setValue) {
+            return localforage.setItem('officeX', 'InitechX').then(function(setValue) {
                 expect(setValue).to.be('InitechX');
@@ -183,4 +193,5 @@ return localforage.getItem('officeX');
 
-                return localforage.iterate(function(value, key) {
+                return localforage.iterate(function(value, key, iterationNumber) {
                     accumulator[key] = value;
+                    iterationNumbers.push(iterationNumber);
                 });
@@ -190,9 +201,3 @@ }).then(function() {
                 expect(accumulator.officeY).to.be('InitechY');
-            }).then(function() {
-                return localforage.iterate(function() {
-                    return message;
-                });
-            }).then(function(result) {
-                expect(result).to.be(message);
-                done();
+                expect(iterationNumbers).to.eql([1, 2]);
             });
@@ -764,3 +769,8 @@ });
         var _oldReady;
+        var Promise;
 
+        before(function() {
+            Promise = window.Promise || require('promise');
+        });
+
         beforeEach(function(done) {
@@ -767,0 +777,0 @@ _oldReady = localforage.ready;

test/test.datatypes.js

@@ -244,8 +244,8 @@ /* global before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true */
 
-        // Skip binary data tests if Array Buffer isn't supported.
+        // Skip binary (ArrayBuffer) data tests if Array Buffer isn't supported.
         if (typeof ArrayBuffer !== 'undefined') {
-            it('saves binary data', function(done) {
+            var runBinaryTest = function(url, done) {
                 var request = new XMLHttpRequest();
 
-                request.open('GET', '/test/photo.jpg', true);
+                request.open('GET', url, true);
                 request.responseType = 'arraybuffer';
@@ -278,6 +278,50 @@
                 request.send();
+            };
+
+            it('saves binary (ArrayBuffer) data', function(done) {
+                runBinaryTest('/test/photo.jpg', done);
             });
+
+            it('saves odd length binary (ArrayBuffer) data', function(done) {
+                runBinaryTest('/test/photo2.jpg', done);
+            });
         } else {
-            it.skip('saves binary data (ArrayBuffer type does not exist)');
+            it.skip('saves binary (ArrayBuffer) data (ArrayBuffer type does not exist)');
         }
+
+        // This does not run on PhantomJS < 2.0.
+        // https://github.com/ariya/phantomjs/issues/11013
+        // Skip binary(Blob) data tests if Blob isn't supported.
+        if (typeof Blob === 'function') {
+            it('saves binary (Blob) data', function(done) {
+                var fileParts = ['<a id=\"a\"><b id=\"b\">hey!<\/b><\/a>'];
+                var mimeString = 'text\/html';
+
+                var testBlob = new Blob(fileParts, { 'type' : mimeString });
+
+                localforage.setItem('blob', testBlob, function(err, blob) {
+                    expect(err).to.be(null);
+                    expect(blob.toString())
+                        .to.be('[object Blob]');
+                    expect(blob.size)
+                        .to.be(testBlob.size);
+                    expect(blob.type)
+                        .to.be(testBlob.type);
+                }).then(function() {
+                    localforage.getItem('blob', function(err, blob) {
+                        expect(err).to.be(null);
+                        expect(blob.toString())
+                            .to.be('[object Blob]');
+                        expect(blob.size)
+                            .to.be(testBlob.size);
+                        // TODO: localForage does not restore the mimeString!?
+                        // expect(blob.type)
+                        //     .to.be(testBlob.type);
+                        done();
+                    });
+                });
+            });
+        } else {
+            it.skip('saves binary (Blob) data (Blob type does not exist)');
+        }
     });
@@ -284,0 +328,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Dynamic require

Supply chain risk

Dynamic require can indicate the package is performing dangerous or unsafe dynamic code execution.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

1079199

increased by5.32%

Number of package files

106

increased by1.92%

Worsened metrics

Lines of code

12619

decreased by-1.61%

Number of lines in readme file

248

decreased by-18.42%

Number of low supply chain risk alerts

29

increased by70.59%

No dependency changes