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localforage

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localforage - npm Package Compare versions

Comparing version 0.9.2 to 0.9.3

gulpfile.js
test/test.callwhenready.html
test/test.callwhenready.js

4

bower.json
{
"name": "localforage",
"version": "0.9.2",
"version": "0.9.3",
"main": [
"dist/localforage.min.js"
"dist/localforage.js"
],

@@ -7,0 +7,0 @@ "ignore": [

1

CHANGELOG.md

@@ -8,2 +8,3 @@ # About this CHANGELOG

* It is no longer necessary to queue commands using `ready()` when using RequireJS. ([723cc94e06](https://github.com/mozilla/localForage/commit/723cc94e06af4f5ba4c53fa65524ccd5f6c4432e))
* `setDriver` now accepts an array of drivers to be used, in order of preference, instead of simply a string. The string option is still supported. (eg. now one can use `setDriver(['WebSQL', 'localStorage'])` instead of `setDriver('WebSQL')`)

@@ -10,0 +11,0 @@

2

component.json
{
"name": "localforage",
"version": "0.9.2",
"version": "0.9.3",
"dependencies": {

@@ -5,0 +5,0 @@ "then/promise": "5.0.0"

2

dist/localforage.min.js

@@ -1,1 +0,1 @@

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Uint8Array(l);for(b=0;j>b;b+=4)c=m.indexOf(g[b]),d=m.indexOf(g[b+1]),e=m.indexOf(g[b+2]),f=m.indexOf(g[b+3]),n[k++]=c<<2|d>>4,n[k++]=(15&d)<<4|e>>2,n[k++]=(3&e)<<6|63&f;switch(h){case r:return l;case s:return new Blob([l]);case t:return new Int8Array(l);case u:return new Uint8Array(l);case v:return new Uint8ClampedArray(l);case w:return new Int16Array(l);case y:return new Uint16Array(l);case x:return new Int32Array(l);case z:return new Uint32Array(l);case A:return new Float32Array(l);case B:return new Float64Array(l);default:throw new Error("Unkown type: "+h)}}function k(a,b){var c="";if(a&&(c=a.toString()),a&&("[object ArrayBuffer]"===a.toString()||a.buffer&&"[object ArrayBuffer]"===a.buffer.toString())){var d,e=p;a instanceof ArrayBuffer?(d=a,e+=r):(d=a.buffer,"[object Int8Array]"===c?e+=t:"[object Uint8Array]"===c?e+=u:"[object Uint8ClampedArray]"===c?e+=v:"[object Int16Array]"===c?e+=w:"[object Uint16Array]"===c?e+=y:"[object Int32Array]"===c?e+=x:"[object Uint32Array]"===c?e+=z:"[object Float32Array]"===c?e+=A:"[object Float64Array]"===c?e+=B:b(new Error("Failed to get type for BinaryArray"))),b(e+i(d))}else if("[object Blob]"===c){var f=new FileReader;f.onload=function(){var a=i(this.result);b(p+s+a)},f.readAsArrayBuffer(a)}else try{b(JSON.stringify(a))}catch(g){window.console.error("Couldn't convert value into a JSON string: ",a),b(null,g)}}function l(a,b){b&&a.then(function(a){b(null,a)},function(a){b(a)})}var m="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",n="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,o=this.openDatabase,p="__lfsc__:",q=p.length,r="arbf",s="blob",t="si08",u="ui08",v="uic8",w="si16",x="si32",y="ur16",z="ui32",A="fl32",B="fl64",C=q+r.length;if(o){var D={_driver:"webSQLStorage",_initStorage:a,getItem:b,setItem:c,removeItem:d,clear:e,length:f,key:g,keys:h};"function"==typeof define&&define.amd?define("webSQLStorage",function(){return D}):"undefined"!=typeof module&&module.exports?module.exports=D:this.webSQLStorage=D}}.call(window),function(){"use strict";function a(){for(var a=1;a<arguments.length;a++){var b=arguments[a];if(b)for(var c in b)b.hasOwnProperty(c)&&(arguments[0][c]=b[c])}return arguments[0]}function b(a,b){a[b]=function(){var c=arguments;return a.ready().then(function(){return a[b].apply(a,c)})}}function c(c){this._config=a({},i,c),this._driverSet=null,this._ready=!1,this._dbInfo=null;for(var d=0;d<g.length;d++)b(this,g[d]);this.setDriver(f)}var d="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,e={INDEXEDDB:"asyncStorage",LOCALSTORAGE:"localStorageWrapper",WEBSQL:"webSQLStorage"},f=[e.INDEXEDDB,e.WEBSQL,e.LOCALSTORAGE],g=["clear","getItem","key","keys","length","removeItem","setItem"],h={DEFINE:1,EXPORT:2,WINDOW:3},i={description:"",name:"localforage",size:4980736,storeName:"keyvaluepairs",version:1},j=h.WINDOW;"function"==typeof define&&define.amd?j=h.DEFINE:"undefined"!=typeof module&&module.exports&&(j=h.EXPORT);var k=function(a){var b=b||a.indexedDB||a.webkitIndexedDB||a.mozIndexedDB||a.OIndexedDB||a.msIndexedDB,c={};return c[e.WEBSQL]=!!a.openDatabase,c[e.INDEXEDDB]=!!function(){try{return b&&"function"==typeof b.open&&null===b.open("_localforage_spec_test",1).onupgradeneeded}catch(a){return!1}}(),c[e.LOCALSTORAGE]=!!function(){try{return localStorage&&"function"==typeof localStorage.setItem}catch(a){return!1}}(),c}(this),l=this;c.prototype.INDEXEDDB=e.INDEXEDDB,c.prototype.LOCALSTORAGE=e.LOCALSTORAGE,c.prototype.WEBSQL=e.WEBSQL,c.prototype.config=function(a){if("object"==typeof a){if(this._ready)return new Error("Can't call config() after localforage has been used.");for(var b in a)"storeName"===b&&(a[b]=a[b].replace(/\W/g,"_")),this._config[b]=a[b];return!0}return"string"==typeof a?this._config[a]:this._config},c.prototype.driver=function(){return this._driver||null},c.prototype.ready=function(a){var b=this,c=new d(function(a,c){b._driverSet.then(function(){null===b._ready&&(b._ready=b._initStorage(b._config)),b._ready.then(a,c)})["catch"](c)});return c.then(a,a),c},c.prototype.setDriver=function(a,b,c){var e=this;return"string"==typeof a&&(a=[a]),this._driverSet=new d(function(b,c){var f=e._getFirstSupportedDriver(a);if(!f){var g=new Error("No available storage method found.");return e._driverSet=d.reject(g),void c(g)}if(e._dbInfo=null,e._ready=null,j===h.DEFINE)return void require([f],function(a){e._extend(a),b()});if(j===h.EXPORT){var i;switch(f){case e.INDEXEDDB:i=require("./drivers/indexeddb");break;case e.LOCALSTORAGE:i=require("./drivers/localstorage");break;case e.WEBSQL:i=require("./drivers/websql")}e._extend(i)}else e._extend(l[f]);b()}),this._driverSet.then(b,c),this._driverSet},c.prototype.supports=function(a){return!!k[a]},c.prototype._extend=function(b){a(this,b)},c.prototype._getFirstSupportedDriver=function(a){var b=Array.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)};if(a&&b(a))for(var c=0;c<a.length;c++){var d=a[c];if(this.supports(d))return d}return null},c.prototype.createInstance=function(a){return new c(a)};var m=new c;j===h.DEFINE?define(function(){return m}):j===h.EXPORT?module.exports=m:this.localforage=m}.call(window);

1007

dist/localforage.nopromises.js
/*!
localForage -- Offline Storage, Improved
Version 0.9.2
Version 0.9.3
http://mozilla.github.io/localForage

@@ -18,5 +18,2 @@ (c) 2013-2014 Mozilla, Apache License 2.0

var db = null;
var dbInfo = {};
// Initialize IndexedDB; fall back to vendor-prefixed versions if needed.

@@ -35,2 +32,7 @@ var indexedDB = indexedDB || this.indexedDB || this.webkitIndexedDB ||

function _initStorage(options) {
var _this = this;
var dbInfo = {
db: null
};
if (options) {

@@ -52,3 +54,4 @@ for (var i in options) {

openreq.onsuccess = function() {
db = openreq.result;
dbInfo.db = openreq.result;
_this._dbInfo = dbInfo;
resolve();

@@ -61,5 +64,14 @@ };

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -74,4 +86,2 @@ var req = store.get(key);

deferCallback(callback,value);
resolve(value);

@@ -81,10 +91,9 @@ };

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
})["catch"](reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -94,5 +103,14 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readwrite')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
.objectStore(dbInfo.storeName);

@@ -120,15 +138,12 @@

deferCallback(callback, value);
resolve(value);
};
req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
})["catch"](reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -138,5 +153,14 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readwrite')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
.objectStore(dbInfo.storeName);

@@ -151,5 +175,2 @@

req.onsuccess = function() {
deferCallback(callback);
resolve();

@@ -159,6 +180,2 @@ };

req.onerror = function() {
if (callback) {
callback(req.error);
}
reject(req.error);

@@ -173,11 +190,10 @@ };

if (error === 'QuotaExceededError') {
if (callback) {
callback(error);
}
reject(error);
}
};
}, reject);
})["catch"](reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -187,5 +203,7 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readwrite')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
.objectStore(dbInfo.storeName);

@@ -195,4 +213,2 @@ var req = store.clear();

req.onsuccess = function() {
deferCallback(callback);
resolve();

@@ -202,10 +218,9 @@ };

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
})["catch"](reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -215,5 +230,7 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -223,6 +240,2 @@ var req = store.count();

req.onsuccess = function() {
if (callback) {
callback(req.result);
}
resolve(req.result);

@@ -232,10 +245,9 @@ };

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -245,8 +257,5 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
if (n < 0) {
if (callback) {
callback(null);
}
resolve(null);

@@ -258,3 +267,4 @@

_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -268,6 +278,2 @@

// this means there weren't enough keys
if (callback) {
callback(null);
}
resolve(null);

@@ -281,6 +287,2 @@

// wanted.
if (callback) {
callback(cursor.key);
}
resolve(cursor.key);

@@ -295,6 +297,2 @@ } else {

// When we get here, we've got the nth key.
if (callback) {
callback(cursor.key);
}
resolve(cursor.key);

@@ -306,10 +304,9 @@ }

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -320,5 +317,6 @@

return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -333,6 +331,2 @@

if (!cursor) {
if (callback) {
callback(keys);
}
resolve(keys);

@@ -347,12 +341,31 @@ return;

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}
function executeCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
callback(null, result);
}, function(error) {
callback(error);
});
}
}
function executeDeferedCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
deferCallback(callback, result);
}, function(error) {
callback(error);
});
}
}
// Under Chrome the callback is called before the changes (save, clear)

@@ -363,6 +376,6 @@ // are actually made. So we use a defer function which wait that the

// Pull request : https://github.com/mozilla/localForage/pull/178
function deferCallback(callback, value) {
function deferCallback(callback, result) {
if (callback) {
return setTimeout(function() {
return callback(value);
return callback(null, result);
}, 0);

@@ -393,3 +406,3 @@ }

}
}).call(this);
}).call(window);
// If IndexedDB isn't available, we'll fall back to localStorage.

@@ -402,4 +415,2 @@ // Note that this will have considerable performance and storage

var keyPrefix = '';
var dbInfo = {};
// Promises!

@@ -430,2 +441,4 @@ var Promise = (typeof module !== 'undefined' && module.exports) ?

function _initStorage(options) {
var _this = this;
var dbInfo = {};
if (options) {

@@ -437,4 +450,5 @@ for (var i in options) {

keyPrefix = dbInfo.name + '/';
dbInfo.keyPrefix = dbInfo.name + '/';
_this._dbInfo = dbInfo;
return Promise.resolve();

@@ -465,13 +479,12 @@ }

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
localStorage.clear();
if (callback) {
callback();
}
resolve();
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -484,6 +497,15 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
try {
var result = localStorage.getItem(keyPrefix + key);
var dbInfo = _this._dbInfo;
var result = localStorage.getItem(dbInfo.keyPrefix + key);

@@ -498,16 +520,11 @@ // If a result was found, parse it from the serialized

if (callback) {
callback(result);
}
resolve(result);
} catch (e) {
if (callback) {
callback(null, e);
}
reject(e);
}
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -518,4 +535,5 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var dbInfo = _this._dbInfo;
var result;

@@ -530,11 +548,11 @@ try {

if (result) {
result = result.substring(keyPrefix.length);
result = result.substring(dbInfo.keyPrefix.length);
}
if (callback) {
callback(result);
}
resolve(result);
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -544,4 +562,5 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var dbInfo = _this._dbInfo;
var length = localStorage.length;

@@ -551,12 +570,12 @@ var keys = [];

for (var i = 0; i < length; i++) {
keys.push(localStorage.key(i).substring(keyPrefix.length));
keys.push(localStorage.key(i)
.substring(dbInfo.keyPrefix.length));
}
if (callback) {
callback(keys);
}
resolve(keys);
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -567,13 +586,12 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var result = localStorage.length;
if (callback) {
callback(result);
}
resolve(result);
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -584,13 +602,21 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
localStorage.removeItem(keyPrefix + key);
var dbInfo = _this._dbInfo;
localStorage.removeItem(dbInfo.keyPrefix + key);
if (callback) {
callback();
}
resolve();
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -693,3 +719,4 @@

if (value && (value.toString() === '[object ArrayBuffer]' ||
value.buffer && value.buffer.toString() === '[object ArrayBuffer]')) {
value.buffer &&
value.buffer.toString() === '[object ArrayBuffer]')) {
// Convert binary arrays to a string and prefix the string with

@@ -725,3 +752,3 @@ // a special marker.

} else {
callback(new Error("Failed to get type for BinaryArray"));
callback(new Error('Failed to get type for BinaryArray'));
}

@@ -731,3 +758,3 @@ }

callback(marker + _bufferToString(buffer));
} else if (valueString === "[object Blob]") {
} else if (valueString === '[object Blob]') {
// Conver the blob to a binaryArray and then to a string.

@@ -747,7 +774,6 @@ var fileReader = new FileReader();

} catch (e) {
if (this.console && this.console.error) {
this.console.error("Couldn't convert value into a JSON string: ", value);
}
window.console.error("Couldn't convert value into a JSON " +
'string: ', value);
callback(null, e);
callback(e);
}

@@ -763,3 +789,11 @@ }

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {

@@ -777,10 +811,7 @@ // Convert undefined values to null.

if (error) {
if (callback) {
callback(null, error);
}
reject(error);
} else {
try {
localStorage.setItem(keyPrefix + key, value);
var dbInfo = _this._dbInfo;
localStorage.setItem(dbInfo.keyPrefix + key, value);
} catch (e) {

@@ -791,6 +822,2 @@ // localStorage capacity exceeded.

e.name === 'NS_ERROR_DOM_QUOTA_REACHED') {
if (callback) {
callback(null, e);
}
reject(e);

@@ -800,13 +827,22 @@ }

if (callback) {
callback(originalValue);
}
resolve(originalValue);
}
});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}
function executeCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
callback(null, result);
}, function(error) {
callback(error);
});
}
}
var localStorageWrapper = {

@@ -834,3 +870,3 @@ _driver: 'localStorageWrapper',

}
}).call(this);
}).call(window);
/*

@@ -858,4 +894,2 @@ * Includes code from:

var openDatabase = this.openDatabase;
var db = null;
var dbInfo = {};

@@ -877,3 +911,4 @@ var SERIALIZED_MARKER = '__lfsc__:';

var TYPE_FLOAT64ARRAY = 'fl64';
var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH + TYPE_ARRAYBUFFER.length;
var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH +
TYPE_ARRAYBUFFER.length;

@@ -889,6 +924,10 @@ // If WebSQL methods aren't available, we can stop now.

var _this = this;
var dbInfo = {
db: null
};
if (options) {
for (var i in options) {
dbInfo[i] = typeof(options[i]) !== 'string' ? options[i].toString() : options[i];
dbInfo[i] = typeof(options[i]) !== 'string' ?
options[i].toString() : options[i];
}

@@ -901,12 +940,16 @@ }

try {
db = openDatabase(dbInfo.name, dbInfo.version,
dbInfo.description, dbInfo.size);
dbInfo.db = openDatabase(dbInfo.name, String(dbInfo.version),
dbInfo.description, dbInfo.size);
} catch (e) {
return _this.setDriver('localStorageWrapper').then(resolve, reject);
return _this.setDriver("localStorageWrapper").then(function() {
return _this._initStorage(options);
}).then(resolve)["catch"](reject);
}
// Create our key/value table if it doesn't exist.
db.transaction(function(t) {
dbInfo.db.transaction(function(t) {
t.executeSql('CREATE TABLE IF NOT EXISTS ' + dbInfo.storeName +
' (id INTEGER PRIMARY KEY, key unique, value)', [], function() {
' (id INTEGER PRIMARY KEY, key unique, value)', [],
function() {
_this._dbInfo = dbInfo;
resolve();

@@ -922,8 +965,19 @@ }, function(t, error) {

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('SELECT * FROM ' + dbInfo.storeName +
' WHERE key = ? LIMIT 1', [key], function(t, results) {
var result = results.rows.length ? results.rows.item(0).value : null;
' WHERE key = ? LIMIT 1', [key],
function(t, results) {
var result = results.rows.length ?
results.rows.item(0).value : null;

@@ -936,11 +990,4 @@ // Check to see if this is serialized content we need to

if (callback) {
callback(result);
}
resolve(result);
}, function(t, error) {
if (callback) {
callback(null, error);
}

@@ -950,4 +997,7 @@ reject(error);

});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -957,3 +1007,11 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {

@@ -974,15 +1032,10 @@ // The localStorage API doesn't return undefined values in an

} else {
db.transaction(function(t) {
t.executeSql('INSERT OR REPLACE INTO ' + dbInfo.storeName +
' (key, value) VALUES (?, ?)', [key, value], function() {
if (callback) {
callback(originalValue);
}
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('INSERT OR REPLACE INTO ' +
dbInfo.storeName +
' (key, value) VALUES (?, ?)',
[key, value], function() {
resolve(originalValue);
}, function(t, error) {
if (callback) {
callback(null, error);
}
reject(error);

@@ -1000,6 +1053,2 @@ });

// TODO: Try to re-run the transaction.
if (callback) {
callback(null, sqlError);
}
reject(sqlError);

@@ -1010,4 +1059,7 @@ }

});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -1017,16 +1069,19 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('DELETE FROM ' + dbInfo.storeName +
' WHERE key = ?', [key], function() {
if (callback) {
callback();
}
resolve();
}, function(t, error) {
if (callback) {
callback(error);
}

@@ -1036,4 +1091,7 @@ reject(error);

});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -1045,21 +1103,19 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
t.executeSql('DELETE FROM ' + dbInfo.storeName, [], function() {
if (callback) {
callback();
}
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('DELETE FROM ' + dbInfo.storeName, [],
function() {
resolve();
}, function(t, error) {
if (callback) {
callback(error);
}
reject(error);
});
});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -1071,5 +1127,7 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
// Ahhh, SQL makes this one soooooo easy.

@@ -1080,11 +1138,4 @@ t.executeSql('SELECT COUNT(key) as c FROM ' +

if (callback) {
callback(result);
}
resolve(result);
}, function(t, error) {
if (callback) {
callback(null, error);
}

@@ -1094,4 +1145,7 @@ reject(error);

});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -1108,24 +1162,22 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('SELECT key FROM ' + dbInfo.storeName +
' WHERE id = ? LIMIT 1', [n + 1], function(t, results) {
var result = results.rows.length ? results.rows.item(0).key : null;
if (callback) {
callback(result);
}
' WHERE id = ? LIMIT 1', [n + 1],
function(t, results) {
var result = results.rows.length ?
results.rows.item(0).key : null;
resolve(result);
}, function(t, error) {
if (callback) {
callback(null, error);
}
reject(error);
});
});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -1135,23 +1187,17 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('SELECT key FROM ' + dbInfo.storeName, [],
function(t, results) {
var length = results.rows.length;
var keys = [];
for (var i = 0; i < length; i++) {
for (var i = 0; i < results.rows.length; i++) {
keys.push(results.rows.item(i).key);
}
if (callback) {
callback(keys);
}
resolve(keys);
}, function(t, error) {
if (callback) {
callback(null, error);
}

@@ -1161,4 +1207,7 @@ reject(error);

});
}, reject);
})["catch"](reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -1183,5 +1232,5 @@

if ((bytes.length % 3) === 2) {
base64String = base64String.substring(0, base64String.length - 1) + "=";
base64String = base64String.substring(0, base64String.length - 1) + '=';
} else if (bytes.length % 3 === 1) {
base64String = base64String.substring(0, base64String.length - 2) + "==";
base64String = base64String.substring(0, base64String.length - 2) + '==';
}

@@ -1204,3 +1253,4 @@

// done with it.
if (value.substring(0, SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
if (value.substring(0,
SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
return JSON.parse(value);

@@ -1213,3 +1263,4 @@ }

var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);
var type = value.substring(SERIALIZED_MARKER_LENGTH, TYPE_SERIALIZED_MARKER_LENGTH);
var type = value.substring(SERIALIZED_MARKER_LENGTH,
TYPE_SERIALIZED_MARKER_LENGTH);

@@ -1223,5 +1274,5 @@ // Fill the string into a ArrayBuffer.

if (serializedString[serializedString.length - 1] === "=") {
if (serializedString[serializedString.length - 1] === '=') {
bufferLength--;
if (serializedString[serializedString.length - 2] === "=") {
if (serializedString[serializedString.length - 2] === '=') {
bufferLength--;

@@ -1290,3 +1341,4 @@ }

if (value && (value.toString() === '[object ArrayBuffer]' ||
value.buffer && value.buffer.toString() === '[object ArrayBuffer]')) {
value.buffer &&
value.buffer.toString() === '[object ArrayBuffer]')) {
// Convert binary arrays to a string and prefix the string with

@@ -1322,3 +1374,3 @@ // a special marker.

} else {
callback(new Error("Failed to get type for BinaryArray"));
callback(new Error('Failed to get type for BinaryArray'));
}

@@ -1328,3 +1380,3 @@ }

callback(marker + _bufferToString(buffer));
} else if (valueString === "[object Blob]") {
} else if (valueString === '[object Blob]') {
// Conver the blob to a binaryArray and then to a string.

@@ -1344,5 +1396,4 @@ var fileReader = new FileReader();

} catch (e) {
if (this.console && this.console.error) {
this.console.error("Couldn't convert value into a JSON string: ", value);
}
window.console.error("Couldn't convert value into a JSON " +
'string: ', value);

@@ -1354,2 +1405,12 @@ callback(null, e);

function executeCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
callback(null, result);
}, function(error) {
callback(error);
});
}
}
var webSQLStorage = {

@@ -1376,3 +1437,3 @@ _driver: 'webSQLStorage',

}
}).call(this);
}).call(window);
(function() {

@@ -1385,10 +1446,43 @@ 'use strict';

// Avoid those magic constants!
var MODULE_TYPE_DEFINE = 1;
var MODULE_TYPE_EXPORT = 2;
var MODULE_TYPE_WINDOW = 3;
var DriverType = {
INDEXEDDB: 'asyncStorage',
LOCALSTORAGE: 'localStorageWrapper',
WEBSQL: 'webSQLStorage'
};
var DefaultDriverOrder = [
DriverType.INDEXEDDB,
DriverType.WEBSQL,
DriverType.LOCALSTORAGE
];
var LibraryMethods = [
'clear',
'getItem',
'key',
'keys',
'length',
'removeItem',
'setItem'
];
var ModuleType = {
DEFINE: 1,
EXPORT: 2,
WINDOW: 3
};
var DefaultConfig = {
description: '',
name: 'localforage',
// Default DB size is _JUST UNDER_ 5MB, as it's the highest size
// we can use without a prompt.
size: 4980736,
storeName: 'keyvaluepairs',
version: 1.0
};
// Attaching to window (i.e. no module loader) is the assumed,
// simple default.
var moduleType = MODULE_TYPE_WINDOW;
var moduleType = ModuleType.WINDOW;

@@ -1398,225 +1492,244 @@ // Find out what kind of module setup we have; if none, we'll just attach

if (typeof define === 'function' && define.amd) {
moduleType = MODULE_TYPE_DEFINE;
moduleType = ModuleType.DEFINE;
} else if (typeof module !== 'undefined' && module.exports) {
moduleType = MODULE_TYPE_EXPORT;
moduleType = ModuleType.EXPORT;
}
// The actual localForage object that we expose as a module or via a
// global. It's extended by pulling in one of our other libraries.
var _this = this;
var localForage = {
INDEXEDDB: 'asyncStorage',
LOCALSTORAGE: 'localStorageWrapper',
WEBSQL: 'webSQLStorage',
// Check to see if IndexedDB is available and if it is the latest
// implementation; it's our preferred backend library. We use "_spec_test"
// as the name of the database because it's not the one we'll operate on,
// but it's useful to make sure its using the right spec.
// See: https://github.com/mozilla/localForage/issues/128
var driverSupport = (function(_this) {
// Initialize IndexedDB; fall back to vendor-prefixed versions
// if needed.
var indexedDB = indexedDB || _this.indexedDB || _this.webkitIndexedDB ||
_this.mozIndexedDB || _this.OIndexedDB ||
_this.msIndexedDB;
_config: {
description: '',
name: 'localforage',
// Default DB size is _JUST UNDER_ 5MB, as it's the highest size
// we can use without a prompt.
size: 4980736,
storeName: 'keyvaluepairs',
version: 1.0
},
var result = {};
// Set any config values for localForage; can be called anytime before
// the first API call (e.g. `getItem`, `setItem`).
// We loop through options so we don't overwrite existing config
// values.
config: function(options) {
// If the options argument is an object, we use it to set values.
// Otherwise, we return either a specified config value or all
// config values.
if (typeof(options) === 'object') {
// If localforage is ready and fully initialized, we can't set
// any new configuration values. Instead, we return an error.
if (this._ready) {
return new Error("Can't call config() after localforage " +
"has been used.");
}
result[DriverType.WEBSQL] = !!_this.openDatabase;
result[DriverType.INDEXEDDB] = !!(function() {
try {
return (indexedDB &&
typeof indexedDB.open === 'function' &&
indexedDB.open('_localforage_spec_test', 1)
.onupgradeneeded === null);
} catch (e) {
return false;
}
})();
for (var i in options) {
this._config[i] = options[i];
}
return true;
} else if (typeof(options) === 'string') {
return this._config[options];
} else {
return this._config;
result[DriverType.LOCALSTORAGE] = !!(function() {
try {
return (localStorage &&
typeof localStorage.setItem === 'function');
} catch (e) {
return false;
}
},
})();
driver: function() {
return this._driver || null;
},
return result;
})(this);
_ready: false,
function extend(/*...*/) {
for (var i = 1; i < arguments.length; i++) {
var arg = arguments[i];
if (arg) {
for (var key in arg) {
if (arg.hasOwnProperty(key)) {
arguments[0][key] = arg[key];
}
}
}
}
return arguments[0];
}
_driverSet: null,
function callWhenReady(localForageInstance, libraryMethod) {
localForageInstance[libraryMethod] = function() {
var _args = arguments;
return localForageInstance.ready().then(function() {
return localForageInstance[libraryMethod].apply(localForageInstance, _args);
});
};
}
setDriver: function(drivers, callback, errorCallback) {
var self = this;
// The actual localForage object that we expose as a module or via a
// global. It's extended by pulling in one of our other libraries.
var _this = this;
var isArray = Array.isArray || function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
function LocalForage(options) {
this._config = extend({}, DefaultConfig, options);
this._driverSet = null;
this._ready = false;
this._dbInfo = null;
if (!isArray(drivers) && typeof drivers === 'string') {
drivers = [drivers];
}
// Add a stub for each driver API method that delays the call to the
// corresponding driver method until localForage is ready. These stubs
// will be replaced by the driver methods as soon as the driver is
// loaded, so there is no performance impact.
for (var i = 0; i < LibraryMethods.length; i++) {
callWhenReady(this, LibraryMethods[i]);
}
this._driverSet = new Promise(function(resolve, reject) {
var driverName = self._getFirstSupportedDriver(drivers);
this.setDriver(DefaultDriverOrder);
}
if (!driverName) {
var error = new Error('No available storage method found.');
self._driverSet = Promise.reject(error);
LocalForage.prototype.INDEXEDDB = DriverType.INDEXEDDB;
LocalForage.prototype.LOCALSTORAGE = DriverType.LOCALSTORAGE;
LocalForage.prototype.WEBSQL = DriverType.WEBSQL;
if (errorCallback) {
errorCallback(error);
}
// Set any config values for localForage; can be called anytime before
// the first API call (e.g. `getItem`, `setItem`).
// We loop through options so we don't overwrite existing config
// values.
LocalForage.prototype.config = function(options) {
// If the options argument is an object, we use it to set values.
// Otherwise, we return either a specified config value or all
// config values.
if (typeof(options) === 'object') {
// If localforage is ready and fully initialized, we can't set
// any new configuration values. Instead, we return an error.
if (this._ready) {
return new Error("Can't call config() after localforage " +
'has been used.');
}
reject(error);
return;
for (var i in options) {
if (i === 'storeName') {
options[i] = options[i].replace(/\W/g, '_');
}
self._ready = null;
this._config[i] = options[i];
}
// We allow localForage to be declared as a module or as a
// library available without AMD/require.js.
if (moduleType === MODULE_TYPE_DEFINE) {
require([driverName], function(lib) {
self._extend(lib);
return true;
} else if (typeof(options) === 'string') {
return this._config[options];
} else {
return this._config;
}
};
if (callback) {
callback();
}
resolve();
});
LocalForage.prototype.driver = function() {
return this._driver || null;
};
return;
} else if (moduleType === MODULE_TYPE_EXPORT) {
// Making it browserify friendly
var driver;
switch (driverName) {
case self.INDEXEDDB:
driver = require('./drivers/indexeddb');
break;
case self.LOCALSTORAGE:
driver = require('./drivers/localstorage');
break;
case self.WEBSQL:
driver = require('./drivers/websql');
}
LocalForage.prototype.ready = function(callback) {
var self = this;
self._extend(driver);
} else {
self._extend(_this[driverName]);
var ready = new Promise(function(resolve, reject) {
self._driverSet.then(function() {
if (self._ready === null) {
self._ready = self._initStorage(self._config);
}
if (callback) {
callback();
}
self._ready.then(resolve, reject);
})["catch"](reject);
});
resolve();
});
ready.then(callback, callback);
return ready;
};
return this._driverSet;
},
LocalForage.prototype.setDriver = function(drivers, callback,
errorCallback) {
var self = this;
_getFirstSupportedDriver: function(drivers) {
if (drivers) {
for (var i = 0; i < drivers.length; i++) {
var driver = drivers[i];
if (typeof drivers === 'string') {
drivers = [drivers];
}
if (this.supports(driver)) {
return driver;
}
}
}
this._driverSet = new Promise(function(resolve, reject) {
var driverName = self._getFirstSupportedDriver(drivers);
return null;
},
if (!driverName) {
var error = new Error('No available storage method found.');
self._driverSet = Promise.reject(error);
supports: function(driverName) {
return !!driverSupport[driverName];
},
reject(error);
ready: function(callback) {
var ready = new Promise(function(resolve, reject) {
localForage._driverSet.then(function() {
if (localForage._ready === null) {
localForage._ready = localForage._initStorage(
localForage._config);
}
return;
}
localForage._ready.then(resolve, reject);
}, reject);
});
self._dbInfo = null;
self._ready = null;
ready.then(callback, callback);
// We allow localForage to be declared as a module or as a
// library available without AMD/require.js.
if (moduleType === ModuleType.DEFINE) {
require([driverName], function(lib) {
self._extend(lib);
return ready;
},
resolve();
});
_extend: function(libraryMethodsAndProperties) {
for (var i in libraryMethodsAndProperties) {
if (libraryMethodsAndProperties.hasOwnProperty(i)) {
this[i] = libraryMethodsAndProperties[i];
return;
} else if (moduleType === ModuleType.EXPORT) {
// Making it browserify friendly
var driver;
switch (driverName) {
case self.INDEXEDDB:
driver = require('./drivers/indexeddb');
break;
case self.LOCALSTORAGE:
driver = require('./drivers/localstorage');
break;
case self.WEBSQL:
driver = require('./drivers/websql');
}
self._extend(driver);
} else {
self._extend(_this[driverName]);
}
}
resolve();
});
this._driverSet.then(callback, errorCallback);
return this._driverSet;
};
// Check to see if IndexedDB is available and if it is the latest
// implementation; it's our preferred backend library. We use "_spec_test"
// as the name of the database because it's not the one we'll operate on,
// but it's useful to make sure its using the right spec.
// See: https://github.com/mozilla/localForage/issues/128
var driverSupport = (function(_this) {
// Initialize IndexedDB; fall back to vendor-prefixed versions
// if needed.
var indexedDB = indexedDB || _this.indexedDB || _this.webkitIndexedDB ||
_this.mozIndexedDB || _this.OIndexedDB ||
_this.msIndexedDB;
LocalForage.prototype.supports = function(driverName) {
return !!driverSupport[driverName];
};
var result = {};
LocalForage.prototype._extend = function(libraryMethodsAndProperties) {
extend(this, libraryMethodsAndProperties);
};
result[localForage.WEBSQL] = !!_this.openDatabase;
result[localForage.INDEXEDDB] = !!(
indexedDB &&
typeof indexedDB.open === 'function' &&
indexedDB.open('_localforage_spec_test', 1)
.onupgradeneeded === null
);
LocalForage.prototype._getFirstSupportedDriver = function(drivers) {
var isArray = Array.isArray || function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
result[localForage.LOCALSTORAGE] = !!(function() {
try {
return (localStorage &&
typeof localStorage.setItem === 'function');
} catch (e) {
return false;
if (drivers && isArray(drivers)) {
for (var i = 0; i < drivers.length; i++) {
var driver = drivers[i];
if (this.supports(driver)) {
return driver;
}
}
})();
}
return result;
})(this);
return null;
};
var driverTestOrder = [
localForage.INDEXEDDB,
localForage.WEBSQL,
localForage.LOCALSTORAGE
];
LocalForage.prototype.createInstance = function(options) {
return new LocalForage(options);
};
localForage.setDriver(driverTestOrder);
var localForage = new LocalForage();
// We allow localForage to be declared as a module or as a library
// available without AMD/require.js.
if (moduleType === MODULE_TYPE_DEFINE) {
if (moduleType === ModuleType.DEFINE) {
define(function() {
return localForage;
});
} else if (moduleType === MODULE_TYPE_EXPORT) {
} else if (moduleType === ModuleType.EXPORT) {
module.exports = localForage;

@@ -1626,2 +1739,2 @@ } else {

}
}).call(this);
}).call(window);

2

dist/localforage.nopromises.min.js

@@ -1,1 +0,1 @@

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Array]"===Object.prototype.toString.call(a)};if(a&&b(a))for(var c=0;c<a.length;c++){var d=a[c];if(this.supports(d))return d}return null},c.prototype.createInstance=function(a){return new c(a)};var m=new c;j===h.DEFINE?define(function(){return m}):j===h.EXPORT?module.exports=m:this.localforage=m}.call(window);

9

Gruntfile.js

@@ -18,3 +18,3 @@ /* jshint node:true */

options: {
separator: '',
separator: ''
},

@@ -32,3 +32,3 @@ localforage: {

'src/localforage.js'
],
]
},

@@ -39,3 +39,3 @@ options: {

' localForage -- Offline Storage, Improved\n' +
' Version 0.9.2\n' +
' Version 0.9.3\n' +
' http://mozilla.github.io/localForage\n' +

@@ -100,3 +100,4 @@ ' (c) 2013-2014 Mozilla, Apache License 2.0\n' +

'http://localhost:9999/test/test.min.html',
'http://localhost:9999/test/test.require.html'
'http://localhost:9999/test/test.require.html',
'http://localhost:9999/test/test.callwhenready.html'
]

@@ -103,0 +104,0 @@ }

7

package.json

@@ -11,3 +11,3 @@ {

],
"version": "0.9.2",
"version": "0.9.3",
"homepage": "https://github.com/mozilla/localForage",

@@ -41,3 +41,3 @@ "repository": {

},
"browser": "dist/localforage.js",
"browser": "src/localforage.js",
"main": "dist/localforage.js",

@@ -47,3 +47,6 @@ "licence": "Apache-2.0",

"url": "http://github.com/mozilla/localForage/issues"
},
"dependencies": {
"promise": "^5.0.0"
}
}

78

README.md

@@ -32,3 +32,3 @@ # localForage [![Build Status](https://secure.travis-ci.org/mozilla/localForage.png?branch=master)](http://travis-ci.org/mozilla/localForage)

* **Android Browser 2.1**
* **Android Browser 2.1**
* **Blackberry 7**

@@ -55,3 +55,3 @@ * **Chrome 23** (Chrome 4.0+ with localStorage)

Lost? Need help? Try the
[localForage API documentation](http://mozilla.github.io/localForage).
[localForage API documentation](https://mozilla.github.io/localForage).

@@ -97,2 +97,16 @@ If you're stuck using the library, running the tests, or want to contribute,

Note that callbacks in localForage are Node-style (error argument first) since
`0.9.3`. This means if you're using callbacks, your code should look like this:
```javascript
// Use err as your first argument.
localforage.getItem('key', function(err, value) {
if (err) {
console.error('Oh noes!');
}
alert(value);
});
```
You can store any type in localForage; you aren't limited to strings like in

@@ -117,2 +131,14 @@ localStorage. Even if localStorage is your storage backend, localForage

Note that with Promises, `err` is not the first argument to your function.
Instead, you handle an error with the rejection part of the Promise:
```javascript
// A full setItem() call with Promises.
localforage.setItem('key', 'value').then(function(value) {
alert(value + ' was set!');
}, function(error) {
console.error(error);
});
```
localForage relies on native [ES6 Promises](http://www.promisejs.org/), but

@@ -131,3 +157,3 @@ [ships with an awesome polyfill](https://github.com/jakearchibald/ES6-Promises)

[api]: http://mozilla.github.io/localForage/#setitem
[api]: https://mozilla.github.io/localForage/#setitem

@@ -140,7 +166,7 @@ ## Driver Selection (i.e. forcing localStorage)

to change the driver localForage is using at any time.
```javascript
// If you aren't using JS modules, things are loaded synchronously.
localforage.setDriver('localStorageWrapper');
alert(localforage.driver);
alert(localforage.driver());
=> 'localStorageWrapper'

@@ -151,3 +177,3 @@

localforage.setDriver('localStorageWrapper', function() {
alert(localforage.driver);
alert(localforage.driver());
});

@@ -158,3 +184,3 @@ => 'localStorageWrapper'

localforage.setDriver('localStorageWrapper').then(function() {
alert(localforage.driver);
alert(localforage.driver());
});

@@ -184,3 +210,3 @@ => 'localStorageWrapper'

size : 4980736, // Size of database, in bytes. WebSQL-only for now.
storeName : 'keyvaluepairs',
storeName : 'keyvaluepairs', // Should be alphanumeric, with underscores.
description : 'some description'

@@ -196,7 +222,5 @@ });

You can use localForage with [RequireJS](http://requirejs.org/), but note that
because of the way drivers are loaded using RequireJS, you'll want to make sure
`localforage.ready`'s Promise has been fulfilled to ensure all of localForage
is ready to use before you make set/get calls. Essentially, to use localForage
with RequireJS, your code should look like this:
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:

@@ -206,13 +230,12 @@ ```javascript

// As a callback:
localforage.ready(function() {
localforage.setItem('mykey', 'myvalue', console.log);
});
localforage.setItem('mykey', 'myvalue', console.log);
// With a Promise:
localforage.ready().then(function() {
localforage.setItem('mykey', 'myvalue', console.log);
});
localforage.setItem('mykey', 'myvalue').then(console.log);
});
```
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

@@ -277,19 +300,2 @@

# Frequently Asked Questions
### Will you add (or accept) support for X storage?
Maybe. If it's legacy storage (< IE 8), for a dead platform (WebOS), or
_really_ obscure (Apple Newton), I'm going to say "no". If it's for a new
browser technology or a platform-specific driver like Chrome Web Apps or
Firefox OS, then "yes" is probably the answer.
### Will you add support for node.js?
No. This is a library focused on offline storage inside a web browser. Node.js
already has lots of storage solutions. The problem this library aims to solve
is that web browsers differ greatly in their support for a common API for
dealing with the same kind of data. Node.js doesn't have that problem; if you
want to use an API, you just add a library to your `package.json`.
# License

@@ -296,0 +302,0 @@

61

site/index.md

@@ -52,7 +52,10 @@ ---

localForage supports both a callback-based and Promises-based API, so you can
use whichever you prefer. At the current time, these docs use the callback API.
**localForage offers a callback API as well as support for the
[ES6 Promises API][]**, so you can use whichever you prefer.
[Download localforage.min.js](http://mozilla.github.io/localForage/localforage.min.js)
[Download localforage.min.js][download]
[download]: https://mozilla.github.io/localForage/localforage.min.js
[ES6 Promises API]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Promise
# Installation

@@ -66,3 +69,3 @@

<script src="localforage.js"></script>
<script>localforage.getItem('my alert').then(alert);</script>
<script>localforage.getItem('my alert', alert);</script>
```

@@ -83,3 +86,3 @@

```javascript
localforage.getItem('somekey', function(value) {
localforage.getItem('somekey', function(err, value) {
// Run this code once the value has been

@@ -89,9 +92,17 @@ // loaded from the offline store.

});
localforage.getItem('somekey').then(function(value) {
// The same code, but using ES6 Promises.
console.log(value);
});
```
```coffeescript
localforage.getItem "somekey", (value) ->
localforage.getItem "somekey", (err, value) ->
# Run this code once the value has been loaded
# from the offline store.
console.log value
localforage.getItem("somekey").then (value) ->
# The same code, but using ES6 Promises.
console.log(value)
```

@@ -114,3 +125,3 @@

```javascript
localforage.setItem('somekey', 'some value', function(value) {
localforage.setItem('somekey', 'some value', function(err, value) {
// Do other things once the value has been saved.

@@ -121,3 +132,3 @@ console.log(value);

// Unlike localStorage, you can store non-strings.
localforage.setItem('my array', [1, 2, 'three'], function(value) {
localforage.setItem('my array', [1, 2, 'three'], function(err, value) {
// This will output `1`.

@@ -144,3 +155,3 @@ console.log(value[0]);

```coffeescript
localforage.getItem "somekey", "some value" (value) ->
localforage.setItem "somekey", "some value", (err, value) ->
# Do other things once the value has been saved.

@@ -150,3 +161,3 @@ console.log value

# Unlike localStorage, you can store non-strings.
localforage.setItem "my array", [1, 2, "three"], (value) ->
localforage.setItem "my array", [1, 2, "three"], (err, value) ->
# This will output `1`.

@@ -241,3 +252,3 @@ console.log value[0]

```javascript
localforage.length(function(numberOfKeys) {
localforage.length(function(err, numberOfKeys) {
// Outputs the length of the database.

@@ -249,3 +260,3 @@ console.log(numberOfKeys);

```coffeescript
localforage.length (numberOfKeys) ->
localforage.length (err, numberOfKeys) ->
# Outputs the length of the database.

@@ -262,3 +273,3 @@ console.log numberOfKeys

```javascript
localforage.key(2, function(keyName) {
localforage.key(2, function(err, keyName) {
// Name of the key.

@@ -270,3 +281,3 @@ console.log(keyName);

```coffeescript
localforage.key 2, (keyName) ->
localforage.key 2, (err, keyName) ->
# Name of the key.

@@ -288,3 +299,3 @@ console.log keyName

```javascript
localforage.keys(function(keys) {
localforage.keys(function(err, keys) {
// An array of all the key names.

@@ -296,3 +307,3 @@ console.log(keys);

```coffeescript
localforage.keys (keys) ->
localforage.keys (err, keys) ->
# An array of all the key names.

@@ -316,6 +327,6 @@ console.log keys

// Force localStorage to be the backend driver.
localforage.setDriver('localStorageWrapper');
localforage.setDriver(localforage.LOCALSTORAGE);
// Supply a list of drivers, in order of preference.
localforage.setDriver(['WebSQLStorage', 'localStorageWrapper']);
localforage.setDriver([localforage.WEBSQL, localforage.INDEXEDDB]);
```

@@ -325,6 +336,6 @@

# Force localStorage to be the backend driver.
localforage.setDriver "localStorageWrapper"
localforage.setDriver localforage.LOCALSTORAGE
# Supply a list of drivers, in order of preference.
localforage.setDriver ["WebSQLStorage", "localStorageWrapper"]
localforage.setDriver [localforage.WEBSQL, localforage.INDEXEDDB]
```

@@ -345,4 +356,8 @@

If you would like to force usage of a particular driver you can use
`setDriver()`.
`setDriver()` with one or more of the following parameters.
* localforage.INDEXEDDB
* localforage.WEBSQL
* localforage.LOCALSTORAGE
<aside class="notice">

@@ -397,3 +412,5 @@ If the backend you're trying to load isn't available on the user's browser,

table in the database. In localStorage, this is used as a key prefix for
all keys stored in localStorage.<br>
all keys stored in localStorage. <strong>Must be alphanumeric,
with underscores.</strong> Any non-alphanumeric characters will be converted
to underscores.<br>
Default: <code>'keyvaluepairs'</code>

@@ -400,0 +417,0 @@ </dd>

2

site/localforage.min.js

@@ -1,1 +0,1 @@

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Uint8Array(l);for(b=0;j>b;b+=4)c=m.indexOf(g[b]),d=m.indexOf(g[b+1]),e=m.indexOf(g[b+2]),f=m.indexOf(g[b+3]),n[k++]=c<<2|d>>4,n[k++]=(15&d)<<4|e>>2,n[k++]=(3&e)<<6|63&f;switch(h){case r:return l;case s:return new Blob([l]);case t:return new Int8Array(l);case u:return new Uint8Array(l);case v:return new Uint8ClampedArray(l);case w:return new Int16Array(l);case y:return new Uint16Array(l);case x:return new Int32Array(l);case z:return new Uint32Array(l);case A:return new Float32Array(l);case B:return new Float64Array(l);default:throw new Error("Unkown type: "+h)}}function k(a,b){var c="";if(a&&(c=a.toString()),a&&("[object ArrayBuffer]"===a.toString()||a.buffer&&"[object ArrayBuffer]"===a.buffer.toString())){var d,e=p;a instanceof ArrayBuffer?(d=a,e+=r):(d=a.buffer,"[object Int8Array]"===c?e+=t:"[object Uint8Array]"===c?e+=u:"[object Uint8ClampedArray]"===c?e+=v:"[object Int16Array]"===c?e+=w:"[object Uint16Array]"===c?e+=y:"[object Int32Array]"===c?e+=x:"[object Uint32Array]"===c?e+=z:"[object Float32Array]"===c?e+=A:"[object Float64Array]"===c?e+=B:b(new Error("Failed to get type for BinaryArray"))),b(e+i(d))}else if("[object Blob]"===c){var f=new FileReader;f.onload=function(){var a=i(this.result);b(p+s+a)},f.readAsArrayBuffer(a)}else try{b(JSON.stringify(a))}catch(g){window.console.error("Couldn't convert value into a JSON string: ",a),b(null,g)}}function l(a,b){b&&a.then(function(a){b(null,a)},function(a){b(a)})}var m="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/",n="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,o=this.openDatabase,p="__lfsc__:",q=p.length,r="arbf",s="blob",t="si08",u="ui08",v="uic8",w="si16",x="si32",y="ur16",z="ui32",A="fl32",B="fl64",C=q+r.length;if(o){var D={_driver:"webSQLStorage",_initStorage:a,getItem:b,setItem:c,removeItem:d,clear:e,length:f,key:g,keys:h};"function"==typeof define&&define.amd?define("webSQLStorage",function(){return D}):"undefined"!=typeof module&&module.exports?module.exports=D:this.webSQLStorage=D}}.call(window),function(){"use strict";function a(){for(var a=1;a<arguments.length;a++){var b=arguments[a];if(b)for(var c in b)b.hasOwnProperty(c)&&(arguments[0][c]=b[c])}return arguments[0]}function b(a,b){a[b]=function(){var c=arguments;return a.ready().then(function(){return a[b].apply(a,c)})}}function c(c){this._config=a({},i,c),this._driverSet=null,this._ready=!1,this._dbInfo=null;for(var d=0;d<g.length;d++)b(this,g[d]);this.setDriver(f)}var d="undefined"!=typeof module&&module.exports?require("promise"):this.Promise,e={INDEXEDDB:"asyncStorage",LOCALSTORAGE:"localStorageWrapper",WEBSQL:"webSQLStorage"},f=[e.INDEXEDDB,e.WEBSQL,e.LOCALSTORAGE],g=["clear","getItem","key","keys","length","removeItem","setItem"],h={DEFINE:1,EXPORT:2,WINDOW:3},i={description:"",name:"localforage",size:4980736,storeName:"keyvaluepairs",version:1},j=h.WINDOW;"function"==typeof define&&define.amd?j=h.DEFINE:"undefined"!=typeof module&&module.exports&&(j=h.EXPORT);var k=function(a){var b=b||a.indexedDB||a.webkitIndexedDB||a.mozIndexedDB||a.OIndexedDB||a.msIndexedDB,c={};return c[e.WEBSQL]=!!a.openDatabase,c[e.INDEXEDDB]=!!function(){try{return b&&"function"==typeof b.open&&null===b.open("_localforage_spec_test",1).onupgradeneeded}catch(a){return!1}}(),c[e.LOCALSTORAGE]=!!function(){try{return localStorage&&"function"==typeof localStorage.setItem}catch(a){return!1}}(),c}(this),l=this;c.prototype.INDEXEDDB=e.INDEXEDDB,c.prototype.LOCALSTORAGE=e.LOCALSTORAGE,c.prototype.WEBSQL=e.WEBSQL,c.prototype.config=function(a){if("object"==typeof a){if(this._ready)return new Error("Can't call config() after localforage has been used.");for(var b in a)"storeName"===b&&(a[b]=a[b].replace(/\W/g,"_")),this._config[b]=a[b];return!0}return"string"==typeof a?this._config[a]:this._config},c.prototype.driver=function(){return this._driver||null},c.prototype.ready=function(a){var b=this,c=new d(function(a,c){b._driverSet.then(function(){null===b._ready&&(b._ready=b._initStorage(b._config)),b._ready.then(a,c)})["catch"](c)});return c.then(a,a),c},c.prototype.setDriver=function(a,b,c){var e=this;return"string"==typeof a&&(a=[a]),this._driverSet=new d(function(b,c){var f=e._getFirstSupportedDriver(a);if(!f){var g=new Error("No available storage method found.");return e._driverSet=d.reject(g),void c(g)}if(e._dbInfo=null,e._ready=null,j===h.DEFINE)return void require([f],function(a){e._extend(a),b()});if(j===h.EXPORT){var i;switch(f){case e.INDEXEDDB:i=require("./drivers/indexeddb");break;case e.LOCALSTORAGE:i=require("./drivers/localstorage");break;case e.WEBSQL:i=require("./drivers/websql")}e._extend(i)}else e._extend(l[f]);b()}),this._driverSet.then(b,c),this._driverSet},c.prototype.supports=function(a){return!!k[a]},c.prototype._extend=function(b){a(this,b)},c.prototype._getFirstSupportedDriver=function(a){var b=Array.isArray||function(a){return"[object Array]"===Object.prototype.toString.call(a)};if(a&&b(a))for(var c=0;c<a.length;c++){var d=a[c];if(this.supports(d))return d}return null},c.prototype.createInstance=function(a){return new c(a)};var m=new c;j===h.DEFINE?define(function(){return m}):j===h.EXPORT?module.exports=m:this.localforage=m}.call(window);

199

src/drivers/indexeddb.js

@@ -12,5 +12,2 @@ // Some code originally from async_storage.js in

var db = null;
var dbInfo = {};
// Initialize IndexedDB; fall back to vendor-prefixed versions if needed.

@@ -29,2 +26,7 @@ var indexedDB = indexedDB || this.indexedDB || this.webkitIndexedDB ||

function _initStorage(options) {
var _this = this;
var dbInfo = {
db: null
};
if (options) {

@@ -46,3 +48,4 @@ for (var i in options) {

openreq.onsuccess = function() {
db = openreq.result;
dbInfo.db = openreq.result;
_this._dbInfo = dbInfo;
resolve();

@@ -55,5 +58,14 @@ };

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -68,4 +80,2 @@ var req = store.get(key);

deferCallback(callback,value);
resolve(value);

@@ -75,10 +85,9 @@ };

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
}).catch(reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -88,5 +97,14 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readwrite')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
.objectStore(dbInfo.storeName);

@@ -114,15 +132,12 @@

deferCallback(callback, value);
resolve(value);
};
req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
}).catch(reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -132,5 +147,14 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readwrite')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
.objectStore(dbInfo.storeName);

@@ -145,5 +169,2 @@

req.onsuccess = function() {
deferCallback(callback);
resolve();

@@ -153,6 +174,2 @@ };

req.onerror = function() {
if (callback) {
callback(req.error);
}
reject(req.error);

@@ -167,11 +184,10 @@ };

if (error === 'QuotaExceededError') {
if (callback) {
callback(error);
}
reject(error);
}
};
}, reject);
}).catch(reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -181,5 +197,7 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readwrite')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readwrite')
.objectStore(dbInfo.storeName);

@@ -189,4 +207,2 @@ var req = store.clear();

req.onsuccess = function() {
deferCallback(callback);
resolve();

@@ -196,10 +212,9 @@ };

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
}).catch(reject);
});
executeDeferedCallback(promise, callback);
return promise;
}

@@ -209,5 +224,7 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -217,6 +234,2 @@ var req = store.count();

req.onsuccess = function() {
if (callback) {
callback(req.result);
}
resolve(req.result);

@@ -226,10 +239,9 @@ };

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -239,8 +251,5 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
if (n < 0) {
if (callback) {
callback(null);
}
resolve(null);

@@ -252,3 +261,4 @@

_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -262,6 +272,2 @@

// this means there weren't enough keys
if (callback) {
callback(null);
}
resolve(null);

@@ -275,6 +281,2 @@

// wanted.
if (callback) {
callback(cursor.key);
}
resolve(cursor.key);

@@ -289,6 +291,2 @@ } else {

// When we get here, we've got the nth key.
if (callback) {
callback(cursor.key);
}
resolve(cursor.key);

@@ -300,10 +298,9 @@ }

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -314,5 +311,6 @@

return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var store = db.transaction(dbInfo.storeName, 'readonly')
var dbInfo = _this._dbInfo;
var store = dbInfo.db.transaction(dbInfo.storeName, 'readonly')
.objectStore(dbInfo.storeName);

@@ -327,6 +325,2 @@

if (!cursor) {
if (callback) {
callback(keys);
}
resolve(keys);

@@ -341,12 +335,31 @@ return;

req.onerror = function() {
if (callback) {
callback(null, req.error);
}
reject(req.error);
};
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}
function executeCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
callback(null, result);
}, function(error) {
callback(error);
});
}
}
function executeDeferedCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
deferCallback(callback, result);
}, function(error) {
callback(error);
});
}
}
// Under Chrome the callback is called before the changes (save, clear)

@@ -357,6 +370,6 @@ // are actually made. So we use a defer function which wait that the

// Pull request : https://github.com/mozilla/localForage/pull/178
function deferCallback(callback, value) {
function deferCallback(callback, result) {
if (callback) {
return setTimeout(function() {
return callback(value);
return callback(null, result);
}, 0);

@@ -387,2 +400,2 @@ }

}
}).call(this);
}).call(window);

161

src/drivers/localstorage.js

@@ -8,4 +8,2 @@ // If IndexedDB isn't available, we'll fall back to localStorage.

var keyPrefix = '';
var dbInfo = {};
// Promises!

@@ -36,2 +34,4 @@ var Promise = (typeof module !== 'undefined' && module.exports) ?

function _initStorage(options) {
var _this = this;
var dbInfo = {};
if (options) {

@@ -43,4 +43,5 @@ for (var i in options) {

keyPrefix = dbInfo.name + '/';
dbInfo.keyPrefix = dbInfo.name + '/';
_this._dbInfo = dbInfo;
return Promise.resolve();

@@ -71,13 +72,12 @@ }

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
localStorage.clear();
if (callback) {
callback();
}
resolve();
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -90,6 +90,15 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
try {
var result = localStorage.getItem(keyPrefix + key);
var dbInfo = _this._dbInfo;
var result = localStorage.getItem(dbInfo.keyPrefix + key);

@@ -104,16 +113,11 @@ // If a result was found, parse it from the serialized

if (callback) {
callback(result);
}
resolve(result);
} catch (e) {
if (callback) {
callback(null, e);
}
reject(e);
}
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -124,4 +128,5 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var dbInfo = _this._dbInfo;
var result;

@@ -136,11 +141,11 @@ try {

if (result) {
result = result.substring(keyPrefix.length);
result = result.substring(dbInfo.keyPrefix.length);
}
if (callback) {
callback(result);
}
resolve(result);
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -150,4 +155,5 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var dbInfo = _this._dbInfo;
var length = localStorage.length;

@@ -157,12 +163,12 @@ var keys = [];

for (var i = 0; i < length; i++) {
keys.push(localStorage.key(i).substring(keyPrefix.length));
keys.push(localStorage.key(i)
.substring(dbInfo.keyPrefix.length));
}
if (callback) {
callback(keys);
}
resolve(keys);
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -173,13 +179,12 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
var result = localStorage.length;
if (callback) {
callback(result);
}
resolve(result);
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -190,13 +195,21 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
localStorage.removeItem(keyPrefix + key);
var dbInfo = _this._dbInfo;
localStorage.removeItem(dbInfo.keyPrefix + key);
if (callback) {
callback();
}
resolve();
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -299,3 +312,4 @@

if (value && (value.toString() === '[object ArrayBuffer]' ||
value.buffer && value.buffer.toString() === '[object ArrayBuffer]')) {
value.buffer &&
value.buffer.toString() === '[object ArrayBuffer]')) {
// Convert binary arrays to a string and prefix the string with

@@ -331,3 +345,3 @@ // a special marker.

} else {
callback(new Error("Failed to get type for BinaryArray"));
callback(new Error('Failed to get type for BinaryArray'));
}

@@ -337,3 +351,3 @@ }

callback(marker + _bufferToString(buffer));
} else if (valueString === "[object Blob]") {
} else if (valueString === '[object Blob]') {
// Conver the blob to a binaryArray and then to a string.

@@ -353,7 +367,6 @@ var fileReader = new FileReader();

} catch (e) {
if (this.console && this.console.error) {
this.console.error("Couldn't convert value into a JSON string: ", value);
}
window.console.error("Couldn't convert value into a JSON " +
'string: ', value);
callback(null, e);
callback(e);
}

@@ -369,3 +382,11 @@ }

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {

@@ -383,10 +404,7 @@ // Convert undefined values to null.

if (error) {
if (callback) {
callback(null, error);
}
reject(error);
} else {
try {
localStorage.setItem(keyPrefix + key, value);
var dbInfo = _this._dbInfo;
localStorage.setItem(dbInfo.keyPrefix + key, value);
} catch (e) {

@@ -397,6 +415,2 @@ // localStorage capacity exceeded.

e.name === 'NS_ERROR_DOM_QUOTA_REACHED') {
if (callback) {
callback(null, e);
}
reject(e);

@@ -406,13 +420,22 @@ }

if (callback) {
callback(originalValue);
}
resolve(originalValue);
}
});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}
function executeCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
callback(null, result);
}, function(error) {
callback(error);
});
}
}
var localStorageWrapper = {

@@ -440,2 +463,2 @@ _driver: 'localStorageWrapper',

}
}).call(this);
}).call(window);

244

src/drivers/websql.js

@@ -23,4 +23,2 @@ /*

var openDatabase = this.openDatabase;
var db = null;
var dbInfo = {};

@@ -42,3 +40,4 @@ var SERIALIZED_MARKER = '__lfsc__:';

var TYPE_FLOAT64ARRAY = 'fl64';
var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH + TYPE_ARRAYBUFFER.length;
var TYPE_SERIALIZED_MARKER_LENGTH = SERIALIZED_MARKER_LENGTH +
TYPE_ARRAYBUFFER.length;

@@ -54,6 +53,10 @@ // If WebSQL methods aren't available, we can stop now.

var _this = this;
var dbInfo = {
db: null
};
if (options) {
for (var i in options) {
dbInfo[i] = typeof(options[i]) !== 'string' ? options[i].toString() : options[i];
dbInfo[i] = typeof(options[i]) !== 'string' ?
options[i].toString() : options[i];
}

@@ -66,12 +69,19 @@ }

try {
db = openDatabase(dbInfo.name, dbInfo.version,
dbInfo.description, dbInfo.size);
dbInfo.db = openDatabase(dbInfo.name, String(dbInfo.version),
dbInfo.description, dbInfo.size);
} catch (e) {
return _this.setDriver('localStorageWrapper').then(resolve, reject);
return _this.setDriver('localStorageWrapper')
.then(function() {
return _this._initStorage(options);
})
.then(resolve)
.catch(reject);
}
// Create our key/value table if it doesn't exist.
db.transaction(function(t) {
dbInfo.db.transaction(function(t) {
t.executeSql('CREATE TABLE IF NOT EXISTS ' + dbInfo.storeName +
' (id INTEGER PRIMARY KEY, key unique, value)', [], function() {
' (id INTEGER PRIMARY KEY, key unique, value)', [],
function() {
_this._dbInfo = dbInfo;
resolve();

@@ -87,8 +97,19 @@ }, function(t, error) {

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('SELECT * FROM ' + dbInfo.storeName +
' WHERE key = ? LIMIT 1', [key], function(t, results) {
var result = results.rows.length ? results.rows.item(0).value : null;
' WHERE key = ? LIMIT 1', [key],
function(t, results) {
var result = results.rows.length ?
results.rows.item(0).value : null;

@@ -101,11 +122,4 @@ // Check to see if this is serialized content we need to

if (callback) {
callback(result);
}
resolve(result);
}, function(t, error) {
if (callback) {
callback(null, error);
}

@@ -115,4 +129,7 @@ reject(error);

});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -122,3 +139,11 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {

@@ -139,15 +164,10 @@ // The localStorage API doesn't return undefined values in an

} else {
db.transaction(function(t) {
t.executeSql('INSERT OR REPLACE INTO ' + dbInfo.storeName +
' (key, value) VALUES (?, ?)', [key, value], function() {
if (callback) {
callback(originalValue);
}
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('INSERT OR REPLACE INTO ' +
dbInfo.storeName +
' (key, value) VALUES (?, ?)',
[key, value], function() {
resolve(originalValue);
}, function(t, error) {
if (callback) {
callback(null, error);
}
reject(error);

@@ -165,6 +185,2 @@ });

// TODO: Try to re-run the transaction.
if (callback) {
callback(null, sqlError);
}
reject(sqlError);

@@ -175,4 +191,7 @@ }

});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -182,16 +201,19 @@

var _this = this;
return new Promise(function(resolve, reject) {
// Cast the key to a string, as that's all we can set as a key.
if (typeof key !== 'string') {
window.console.warn(key +
' used as a key, but it is not a string.');
key = String(key);
}
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('DELETE FROM ' + dbInfo.storeName +
' WHERE key = ?', [key], function() {
if (callback) {
callback();
}
resolve();
}, function(t, error) {
if (callback) {
callback(error);
}

@@ -201,4 +223,7 @@ reject(error);

});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -210,21 +235,19 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
t.executeSql('DELETE FROM ' + dbInfo.storeName, [], function() {
if (callback) {
callback();
}
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('DELETE FROM ' + dbInfo.storeName, [],
function() {
resolve();
}, function(t, error) {
if (callback) {
callback(error);
}
reject(error);
});
});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -236,5 +259,7 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
// Ahhh, SQL makes this one soooooo easy.

@@ -245,11 +270,4 @@ t.executeSql('SELECT COUNT(key) as c FROM ' +

if (callback) {
callback(result);
}
resolve(result);
}, function(t, error) {
if (callback) {
callback(null, error);
}

@@ -259,4 +277,7 @@ reject(error);

});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -273,24 +294,22 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('SELECT key FROM ' + dbInfo.storeName +
' WHERE id = ? LIMIT 1', [n + 1], function(t, results) {
var result = results.rows.length ? results.rows.item(0).key : null;
if (callback) {
callback(result);
}
' WHERE id = ? LIMIT 1', [n + 1],
function(t, results) {
var result = results.rows.length ?
results.rows.item(0).key : null;
resolve(result);
}, function(t, error) {
if (callback) {
callback(null, error);
}
reject(error);
});
});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -300,23 +319,17 @@

var _this = this;
return new Promise(function(resolve, reject) {
var promise = new Promise(function(resolve, reject) {
_this.ready().then(function() {
db.transaction(function(t) {
var dbInfo = _this._dbInfo;
dbInfo.db.transaction(function(t) {
t.executeSql('SELECT key FROM ' + dbInfo.storeName, [],
function(t, results) {
var length = results.rows.length;
var keys = [];
for (var i = 0; i < length; i++) {
for (var i = 0; i < results.rows.length; i++) {
keys.push(results.rows.item(i).key);
}
if (callback) {
callback(keys);
}
resolve(keys);
}, function(t, error) {
if (callback) {
callback(null, error);
}

@@ -326,4 +339,7 @@ reject(error);

});
}, reject);
}).catch(reject);
});
executeCallback(promise, callback);
return promise;
}

@@ -348,5 +364,5 @@

if ((bytes.length % 3) === 2) {
base64String = base64String.substring(0, base64String.length - 1) + "=";
base64String = base64String.substring(0, base64String.length - 1) + '=';
} else if (bytes.length % 3 === 1) {
base64String = base64String.substring(0, base64String.length - 2) + "==";
base64String = base64String.substring(0, base64String.length - 2) + '==';
}

@@ -369,3 +385,4 @@

// done with it.
if (value.substring(0, SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
if (value.substring(0,
SERIALIZED_MARKER_LENGTH) !== SERIALIZED_MARKER) {
return JSON.parse(value);

@@ -378,3 +395,4 @@ }

var serializedString = value.substring(TYPE_SERIALIZED_MARKER_LENGTH);
var type = value.substring(SERIALIZED_MARKER_LENGTH, TYPE_SERIALIZED_MARKER_LENGTH);
var type = value.substring(SERIALIZED_MARKER_LENGTH,
TYPE_SERIALIZED_MARKER_LENGTH);

@@ -388,5 +406,5 @@ // Fill the string into a ArrayBuffer.

if (serializedString[serializedString.length - 1] === "=") {
if (serializedString[serializedString.length - 1] === '=') {
bufferLength--;
if (serializedString[serializedString.length - 2] === "=") {
if (serializedString[serializedString.length - 2] === '=') {
bufferLength--;

@@ -455,3 +473,4 @@ }

if (value && (value.toString() === '[object ArrayBuffer]' ||
value.buffer && value.buffer.toString() === '[object ArrayBuffer]')) {
value.buffer &&
value.buffer.toString() === '[object ArrayBuffer]')) {
// Convert binary arrays to a string and prefix the string with

@@ -487,3 +506,3 @@ // a special marker.

} else {
callback(new Error("Failed to get type for BinaryArray"));
callback(new Error('Failed to get type for BinaryArray'));
}

@@ -493,3 +512,3 @@ }

callback(marker + _bufferToString(buffer));
} else if (valueString === "[object Blob]") {
} else if (valueString === '[object Blob]') {
// Conver the blob to a binaryArray and then to a string.

@@ -509,5 +528,4 @@ var fileReader = new FileReader();

} catch (e) {
if (this.console && this.console.error) {
this.console.error("Couldn't convert value into a JSON string: ", value);
}
window.console.error("Couldn't convert value into a JSON " +
'string: ', value);

@@ -519,2 +537,12 @@ callback(null, e);

function executeCallback(promise, callback) {
if (callback) {
promise.then(function(result) {
callback(null, result);
}, function(error) {
callback(error);
});
}
}
var webSQLStorage = {

@@ -541,2 +569,2 @@ _driver: 'webSQLStorage',

}
}).call(this);
}).call(window);

404

src/localforage.js

@@ -8,10 +8,43 @@ (function() {

// Avoid those magic constants!
var MODULE_TYPE_DEFINE = 1;
var MODULE_TYPE_EXPORT = 2;
var MODULE_TYPE_WINDOW = 3;
var DriverType = {
INDEXEDDB: 'asyncStorage',
LOCALSTORAGE: 'localStorageWrapper',
WEBSQL: 'webSQLStorage'
};
var DefaultDriverOrder = [
DriverType.INDEXEDDB,
DriverType.WEBSQL,
DriverType.LOCALSTORAGE
];
var LibraryMethods = [
'clear',
'getItem',
'key',
'keys',
'length',
'removeItem',
'setItem'
];
var ModuleType = {
DEFINE: 1,
EXPORT: 2,
WINDOW: 3
};
var DefaultConfig = {
description: '',
name: 'localforage',
// Default DB size is _JUST UNDER_ 5MB, as it's the highest size
// we can use without a prompt.
size: 4980736,
storeName: 'keyvaluepairs',
version: 1.0
};
// Attaching to window (i.e. no module loader) is the assumed,
// simple default.
var moduleType = MODULE_TYPE_WINDOW;
var moduleType = ModuleType.WINDOW;

@@ -21,225 +54,244 @@ // Find out what kind of module setup we have; if none, we'll just attach

if (typeof define === 'function' && define.amd) {
moduleType = MODULE_TYPE_DEFINE;
moduleType = ModuleType.DEFINE;
} else if (typeof module !== 'undefined' && module.exports) {
moduleType = MODULE_TYPE_EXPORT;
moduleType = ModuleType.EXPORT;
}
// The actual localForage object that we expose as a module or via a
// global. It's extended by pulling in one of our other libraries.
var _this = this;
var localForage = {
INDEXEDDB: 'asyncStorage',
LOCALSTORAGE: 'localStorageWrapper',
WEBSQL: 'webSQLStorage',
// Check to see if IndexedDB is available and if it is the latest
// implementation; it's our preferred backend library. We use "_spec_test"
// as the name of the database because it's not the one we'll operate on,
// but it's useful to make sure its using the right spec.
// See: https://github.com/mozilla/localForage/issues/128
var driverSupport = (function(_this) {
// Initialize IndexedDB; fall back to vendor-prefixed versions
// if needed.
var indexedDB = indexedDB || _this.indexedDB || _this.webkitIndexedDB ||
_this.mozIndexedDB || _this.OIndexedDB ||
_this.msIndexedDB;
_config: {
description: '',
name: 'localforage',
// Default DB size is _JUST UNDER_ 5MB, as it's the highest size
// we can use without a prompt.
size: 4980736,
storeName: 'keyvaluepairs',
version: 1.0
},
var result = {};
// Set any config values for localForage; can be called anytime before
// the first API call (e.g. `getItem`, `setItem`).
// We loop through options so we don't overwrite existing config
// values.
config: function(options) {
// If the options argument is an object, we use it to set values.
// Otherwise, we return either a specified config value or all
// config values.
if (typeof(options) === 'object') {
// If localforage is ready and fully initialized, we can't set
// any new configuration values. Instead, we return an error.
if (this._ready) {
return new Error("Can't call config() after localforage " +
"has been used.");
}
result[DriverType.WEBSQL] = !!_this.openDatabase;
result[DriverType.INDEXEDDB] = !!(function() {
try {
return (indexedDB &&
typeof indexedDB.open === 'function' &&
indexedDB.open('_localforage_spec_test', 1)
.onupgradeneeded === null);
} catch (e) {
return false;
}
})();
for (var i in options) {
this._config[i] = options[i];
}
return true;
} else if (typeof(options) === 'string') {
return this._config[options];
} else {
return this._config;
result[DriverType.LOCALSTORAGE] = !!(function() {
try {
return (localStorage &&
typeof localStorage.setItem === 'function');
} catch (e) {
return false;
}
},
})();
driver: function() {
return this._driver || null;
},
return result;
})(this);
_ready: false,
function extend(/*...*/) {
for (var i = 1; i < arguments.length; i++) {
var arg = arguments[i];
if (arg) {
for (var key in arg) {
if (arg.hasOwnProperty(key)) {
arguments[0][key] = arg[key];
}
}
}
}
return arguments[0];
}
_driverSet: null,
function callWhenReady(localForageInstance, libraryMethod) {
localForageInstance[libraryMethod] = function() {
var _args = arguments;
return localForageInstance.ready().then(function() {
return localForageInstance[libraryMethod].apply(localForageInstance, _args);
});
};
}
setDriver: function(drivers, callback, errorCallback) {
var self = this;
// The actual localForage object that we expose as a module or via a
// global. It's extended by pulling in one of our other libraries.
var _this = this;
var isArray = Array.isArray || function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
function LocalForage(options) {
this._config = extend({}, DefaultConfig, options);
this._driverSet = null;
this._ready = false;
this._dbInfo = null;
if (!isArray(drivers) && typeof drivers === 'string') {
drivers = [drivers];
}
// Add a stub for each driver API method that delays the call to the
// corresponding driver method until localForage is ready. These stubs
// will be replaced by the driver methods as soon as the driver is
// loaded, so there is no performance impact.
for (var i = 0; i < LibraryMethods.length; i++) {
callWhenReady(this, LibraryMethods[i]);
}
this._driverSet = new Promise(function(resolve, reject) {
var driverName = self._getFirstSupportedDriver(drivers);
this.setDriver(DefaultDriverOrder);
}
if (!driverName) {
var error = new Error('No available storage method found.');
self._driverSet = Promise.reject(error);
LocalForage.prototype.INDEXEDDB = DriverType.INDEXEDDB;
LocalForage.prototype.LOCALSTORAGE = DriverType.LOCALSTORAGE;
LocalForage.prototype.WEBSQL = DriverType.WEBSQL;
if (errorCallback) {
errorCallback(error);
}
// Set any config values for localForage; can be called anytime before
// the first API call (e.g. `getItem`, `setItem`).
// We loop through options so we don't overwrite existing config
// values.
LocalForage.prototype.config = function(options) {
// If the options argument is an object, we use it to set values.
// Otherwise, we return either a specified config value or all
// config values.
if (typeof(options) === 'object') {
// If localforage is ready and fully initialized, we can't set
// any new configuration values. Instead, we return an error.
if (this._ready) {
return new Error("Can't call config() after localforage " +
'has been used.');
}
reject(error);
return;
for (var i in options) {
if (i === 'storeName') {
options[i] = options[i].replace(/\W/g, '_');
}
self._ready = null;
this._config[i] = options[i];
}
// We allow localForage to be declared as a module or as a
// library available without AMD/require.js.
if (moduleType === MODULE_TYPE_DEFINE) {
require([driverName], function(lib) {
self._extend(lib);
return true;
} else if (typeof(options) === 'string') {
return this._config[options];
} else {
return this._config;
}
};
if (callback) {
callback();
}
resolve();
});
LocalForage.prototype.driver = function() {
return this._driver || null;
};
return;
} else if (moduleType === MODULE_TYPE_EXPORT) {
// Making it browserify friendly
var driver;
switch (driverName) {
case self.INDEXEDDB:
driver = require('./drivers/indexeddb');
break;
case self.LOCALSTORAGE:
driver = require('./drivers/localstorage');
break;
case self.WEBSQL:
driver = require('./drivers/websql');
}
LocalForage.prototype.ready = function(callback) {
var self = this;
self._extend(driver);
} else {
self._extend(_this[driverName]);
var ready = new Promise(function(resolve, reject) {
self._driverSet.then(function() {
if (self._ready === null) {
self._ready = self._initStorage(self._config);
}
if (callback) {
callback();
}
self._ready.then(resolve, reject);
}).catch(reject);
});
resolve();
});
ready.then(callback, callback);
return ready;
};
return this._driverSet;
},
LocalForage.prototype.setDriver = function(drivers, callback,
errorCallback) {
var self = this;
_getFirstSupportedDriver: function(drivers) {
if (drivers) {
for (var i = 0; i < drivers.length; i++) {
var driver = drivers[i];
if (typeof drivers === 'string') {
drivers = [drivers];
}
if (this.supports(driver)) {
return driver;
}
}
}
this._driverSet = new Promise(function(resolve, reject) {
var driverName = self._getFirstSupportedDriver(drivers);
return null;
},
if (!driverName) {
var error = new Error('No available storage method found.');
self._driverSet = Promise.reject(error);
supports: function(driverName) {
return !!driverSupport[driverName];
},
reject(error);
ready: function(callback) {
var ready = new Promise(function(resolve, reject) {
localForage._driverSet.then(function() {
if (localForage._ready === null) {
localForage._ready = localForage._initStorage(
localForage._config);
}
return;
}
localForage._ready.then(resolve, reject);
}, reject);
});
self._dbInfo = null;
self._ready = null;
ready.then(callback, callback);
// We allow localForage to be declared as a module or as a
// library available without AMD/require.js.
if (moduleType === ModuleType.DEFINE) {
require([driverName], function(lib) {
self._extend(lib);
return ready;
},
resolve();
});
_extend: function(libraryMethodsAndProperties) {
for (var i in libraryMethodsAndProperties) {
if (libraryMethodsAndProperties.hasOwnProperty(i)) {
this[i] = libraryMethodsAndProperties[i];
return;
} else if (moduleType === ModuleType.EXPORT) {
// Making it browserify friendly
var driver;
switch (driverName) {
case self.INDEXEDDB:
driver = require('./drivers/indexeddb');
break;
case self.LOCALSTORAGE:
driver = require('./drivers/localstorage');
break;
case self.WEBSQL:
driver = require('./drivers/websql');
}
self._extend(driver);
} else {
self._extend(_this[driverName]);
}
}
resolve();
});
this._driverSet.then(callback, errorCallback);
return this._driverSet;
};
// Check to see if IndexedDB is available and if it is the latest
// implementation; it's our preferred backend library. We use "_spec_test"
// as the name of the database because it's not the one we'll operate on,
// but it's useful to make sure its using the right spec.
// See: https://github.com/mozilla/localForage/issues/128
var driverSupport = (function(_this) {
// Initialize IndexedDB; fall back to vendor-prefixed versions
// if needed.
var indexedDB = indexedDB || _this.indexedDB || _this.webkitIndexedDB ||
_this.mozIndexedDB || _this.OIndexedDB ||
_this.msIndexedDB;
LocalForage.prototype.supports = function(driverName) {
return !!driverSupport[driverName];
};
var result = {};
LocalForage.prototype._extend = function(libraryMethodsAndProperties) {
extend(this, libraryMethodsAndProperties);
};
result[localForage.WEBSQL] = !!_this.openDatabase;
result[localForage.INDEXEDDB] = !!(
indexedDB &&
typeof indexedDB.open === 'function' &&
indexedDB.open('_localforage_spec_test', 1)
.onupgradeneeded === null
);
LocalForage.prototype._getFirstSupportedDriver = function(drivers) {
var isArray = Array.isArray || function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
result[localForage.LOCALSTORAGE] = !!(function() {
try {
return (localStorage &&
typeof localStorage.setItem === 'function');
} catch (e) {
return false;
if (drivers && isArray(drivers)) {
for (var i = 0; i < drivers.length; i++) {
var driver = drivers[i];
if (this.supports(driver)) {
return driver;
}
}
})();
}
return result;
})(this);
return null;
};
var driverTestOrder = [
localForage.INDEXEDDB,
localForage.WEBSQL,
localForage.LOCALSTORAGE
];
LocalForage.prototype.createInstance = function(options) {
return new LocalForage(options);
};
localForage.setDriver(driverTestOrder);
var localForage = new LocalForage();
// We allow localForage to be declared as a module or as a library
// available without AMD/require.js.
if (moduleType === MODULE_TYPE_DEFINE) {
if (moduleType === ModuleType.DEFINE) {
define(function() {
return localForage;
});
} else if (moduleType === MODULE_TYPE_EXPORT) {
} else if (moduleType === ModuleType.EXPORT) {
module.exports = localForage;

@@ -249,2 +301,2 @@ } else {

}
}).call(this);
}).call(window);

316

test/test.api.js

@@ -1,2 +0,2 @@

/* global after:true, before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true, Promise:true, require:true */
/* global afterEach:true, before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true, Promise:true, require:true */
var DRIVERS = [

@@ -13,6 +13,2 @@ localforage.INDEXEDDB,

describe('localForage API', function() {
beforeEach(function(done) {
localforage.clear(done);
});
// If this test is failing, you are likely missing the Promises polyfill,

@@ -35,6 +31,7 @@ // installed via bower. Read more here:

appropriateDriver =
(localforage.supports(localforage.WEBSQL) && localforage.WEBSQL) ||
(localforage.supports(localforage.INDEXEDDB) &&
localforage.INDEXEDDB) ||
(localforage.supports(localforage.localStorage) &&
(localforage.supports(localforage.WEBSQL) &&
localforage.WEBSQL) ||
(localforage.supports(localforage.LOCALSTORAGE) &&
localforage.localStorage);

@@ -45,17 +42,29 @@ });

appropriateDriver + ')', function(done) {
if (appropriateDriver) {
localforage.ready().then(function() {
expect(localforage.driver()).to.be(appropriateDriver);
done();
});
} else {
localforage.ready().then(null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to
.be('No available storage method found.');
expect(localforage.driver()).to.be(null);
done();
});
}
localforage.ready().then(function() {
expect(localforage.driver()).to.be(appropriateDriver);
done();
}, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to
.be('No available storage method found.');
expect(localforage.driver()).to.be(null);
done();
});
});
it('does not support object parameter to setDriver', function(done) {
var driverPreferedOrder = {
'0': localforage.INDEXEDDB,
'1': localforage.WEBSQL,
'2': localforage.LOCALSTORAGE,
length: 3
};
localforage.setDriver(driverPreferedOrder).then(null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to
.be('No available storage method found.');
done();
});
});
});

@@ -105,2 +114,3 @@

expect(localforage.ready).to.be.a('function');
expect(localforage.createInstance).to.be.a('function');
});

@@ -119,3 +129,3 @@

it('has an empty length by default', function(done) {
localforage.length(function(length) {
localforage.length(function(err, length) {
expect(length).to.be(0);

@@ -131,3 +141,3 @@ done();

it('returns null for undefined key [callback]', function(done) {
localforage.getItem('key', function(value) {
localforage.getItem('key', function(err, value) {
expect(value).to.be(null);

@@ -145,6 +155,6 @@ done();

it('saves an item [callback]', function(done) {
localforage.setItem('office', 'Initech', function(setValue) {
localforage.setItem('office', 'Initech', function(err, setValue) {
expect(setValue).to.be('Initech');
localforage.getItem('office', function(value) {
localforage.getItem('office', function(err, value) {
expect(value).to.be(setValue);

@@ -167,10 +177,12 @@ done();

it('saves an item over an existing key [callback]', function(done) {
localforage.setItem('4th floor', 'Mozilla', function(setValue) {
localforage.setItem('4th floor', 'Mozilla',
function(err, setValue) {
expect(setValue).to.be('Mozilla');
localforage.setItem('4th floor', 'Quora', function(newValue) {
localforage.setItem('4th floor', 'Quora',
function(err, newValue) {
expect(newValue).to.not.be(setValue);
expect(newValue).to.be('Quora');
localforage.getItem('4th floor', function(value) {
localforage.getItem('4th floor', function(err, value) {
expect(value).to.not.be(setValue);

@@ -201,3 +213,3 @@ expect(value).to.be(newValue);

it('returns null when saving undefined [callback]', function(done) {
localforage.setItem('undef', undefined, function(setValue) {
localforage.setItem('undef', undefined, function(err, setValue) {
expect(setValue).to.be(null);

@@ -217,3 +229,3 @@

it('returns null for a non-existant key [callback]', function(done) {
localforage.getItem('undef', function(value) {
localforage.getItem('undef', function(err, value) {
expect(value).to.be(null);

@@ -243,3 +255,3 @@

it('returns null from an undefined key [callback]', function(done) {
localforage.key(0, function(key) {
localforage.key(0, function(err, key) {
expect(key).to.be(null);

@@ -260,3 +272,3 @@

localforage.setItem('office', 'Initech').then(function() {
localforage.key(0, function(key) {
localforage.key(0, function(err, key) {
expect(key).to.be('office');

@@ -282,7 +294,8 @@

localforage.removeItem('office', function() {
localforage.getItem('office', function(emptyValue) {
localforage.getItem('office',
function(err, emptyValue) {
expect(emptyValue).to.be(null);
localforage.getItem('otherOffice',
function(value) {
function(err, value) {
expect(value).to.be('Initrode');

@@ -318,10 +331,10 @@

localforage.setItem('otherOffice', 'Initrode', function() {
localforage.length(function(length) {
localforage.length(function(err, length) {
expect(length).to.be(2);
localforage.clear(function() {
localforage.getItem('office', function(value) {
localforage.getItem('office', function(err, value) {
expect(value).to.be(null);
localforage.length(function(length) {
localforage.length(function(err, length) {
expect(length).to.be(0);

@@ -360,6 +373,6 @@

it('has a length after saving an item [callback]', function(done) {
localforage.length(function(length) {
localforage.length(function(err, length) {
expect(length).to.be(0);
localforage.setItem('rapper', 'Black Thought', function() {
localforage.length(function(length) {
localforage.length(function(err, length) {
expect(length).to.be(1);

@@ -385,4 +398,135 @@

});
// Deal with non-string keys, see issue #250
// https://github.com/mozilla/localForage/issues/250
it('casts an undefined key to a String', function(done) {
localforage.setItem(undefined, 'goodness!').then(function(value) {
expect(value).to.be('goodness!');
return localforage.getItem(undefined);
}).then(function(value) {
expect(value).to.be('goodness!');
return localforage.removeItem(undefined);
}).then(function() {
return localforage.length();
}).then(function(length) {
expect(length).to.be(0);
done();
});
});
it('casts a null key to a String', function(done) {
localforage.setItem(null, 'goodness!').then(function(value) {
expect(value).to.be('goodness!');
return localforage.getItem(null);
}).then(function(value) {
expect(value).to.be('goodness!');
return localforage.removeItem(null);
}).then(function() {
return localforage.length();
}).then(function(length) {
expect(length).to.be(0);
done();
});
});
it('casts a float key to a String', function(done) {
localforage.setItem(537.35737, 'goodness!').then(function(value) {
expect(value).to.be('goodness!');
return localforage.getItem(537.35737);
}).then(function(value) {
expect(value).to.be('goodness!');
return localforage.removeItem(537.35737);
}).then(function() {
return localforage.length();
}).then(function(length) {
expect(length).to.be(0);
done();
});
});
});
describe(driverName + ' driver instance', function() {
'use strict';
var localforage2 = null;
var Promise;
before(function(done) {
Promise = window.Promise || require('promise');
localforage2 = localforage.createInstance({
name: 'storage2',
// We need a small value here
// otherwise local PhantomJS test
// will fail with SECURITY_ERR.
// TravisCI seem to work fine though.
size: 1024,
storeName: 'storagename2'
});
Promise.all([
localforage.setDriver(driverName),
localforage2.setDriver(driverName)
])
.then(function() {
done();
});
});
beforeEach(function(done) {
Promise.all([
localforage.clear(),
localforage2.clear()
]).then(function() {
done();
});
});
it('is not be able to access values of other instances', function(done) {
Promise.all([
localforage.setItem('key1', 'value1a'),
localforage2.setItem('key2', 'value2a')
]).then(function() {
return Promise.all([
localforage.getItem('key2').then(function(value) {
expect(value).to.be(null);
}),
localforage2.getItem('key1').then(function(value) {
expect(value).to.be(null);
})
]);
}).then(function() {
done();
}, function(errors) {
done(new Error(errors));
});
});
it('retrieves the proper value when using the same key with other instances', function(done) {
Promise.all([
localforage.setItem('key', 'value1'),
localforage2.setItem('key', 'value2')
]).then(function() {
return Promise.all([
localforage.getItem('key').then(function(value) {
expect(value).to.be('value1');
}),
localforage2.getItem('key').then(function(value) {
expect(value).to.be('value2');
})
]);
}).then(function() {
done();
}, function(errors) {
done(new Error(errors));
});
});
});
describe(driverName + ' driver', function() {

@@ -421,23 +565,28 @@ 'use strict';

describe(driverName + ' driver when ready() gets rejected', function() {
describe(driverName + ' driver when the callback throws an Error', function() {
'use strict';
var _oldReady;
var testObj = {
throwFunc: function() {
testObj.throwFuncCalls++;
throw new Error('Thrown test error');
},
throwFuncCalls: 0
};
before(function(done) {
_oldReady = localforage.ready;
localforage.ready = function() {
return Promise.reject();
};
beforeEach(function(done) {
testObj.throwFuncCalls = 0;
done();
});
after(function(done) {
localforage.ready = _oldReady;
_oldReady = null;
done();
it('resolves the promise of getItem()', function(done) {
localforage.getItem('key', testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();
});
});
it('rejects getItem() promise', function(done) {
localforage.getItem().then(null, function(/*err*/) {
it('resolves the promise of setItem()', function(done) {
localforage.setItem('key', 'test', testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();

@@ -447,4 +596,5 @@ });

it('rejects setItem() promise', function(done) {
localforage.setItem().then(null, function(/*err*/) {
it('resolves the promise of clear()', function(done) {
localforage.clear(testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();

@@ -454,4 +604,5 @@ });

it('rejects clear() promise', function(done) {
localforage.clear().then(null, function(/*err*/) {
it('resolves the promise of length()', function(done) {
localforage.length(testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();

@@ -461,4 +612,5 @@ });

it('rejects length() promise', function(done) {
localforage.length().then(null, function(/*err*/) {
it('resolves the promise of removeItem()', function(done) {
localforage.removeItem('key', testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();

@@ -468,4 +620,5 @@ });

it('rejects removeItem() promise', function(done) {
localforage.removeItem().then(null, function(/*err*/) {
it('resolves the promise of key()', function(done) {
localforage.key('key', testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();

@@ -475,11 +628,44 @@ });

it('rejects key() promise', function(done) {
localforage.key().then(null, function(/*err*/) {
it('resolves the promise of keys()', function(done) {
localforage.keys(testObj.throwFunc).then(function() {
expect(testObj.throwFuncCalls).to.be(1);
done();
});
});
});
it('rejects keys() promise', function(done) {
localforage.keys().then(null, function(/*err*/) {
done();
describe(driverName + ' driver when ready() gets rejected', function() {
'use strict';
var _oldReady;
beforeEach(function(done) {
_oldReady = localforage.ready;
localforage.ready = function() {
return Promise.reject();
};
done();
});
afterEach(function(done) {
localforage.ready = _oldReady;
_oldReady = null;
done();
});
var driverApiMethods = [
'getItem',
'setItem',
'clear',
'length',
'removeItem',
'key',
'keys'
];
driverApiMethods.forEach(function(methodName) {
it('rejects ' + methodName + '() promise', function(done) {
localforage[methodName]().then(null, function(/*err*/) {
done();
});
});

@@ -486,0 +672,0 @@ });

19

test/test.config.js

@@ -34,3 +34,3 @@ /* global before:true, beforeEach:true, describe:true, expect:true, it:true */

var error = "Error: Can't call config() after localforage " +
"has been used.";
'has been used.';

@@ -70,2 +70,15 @@ expect(configResult).to.not.be(true);

it('converts bad config values across drivers', function() {
localforage.config({
name: 'My Cool App',
// https://github.com/mozilla/localForage/issues/247
storeName: 'my store&front-v1',
version: 2.0
});
expect(localforage.config('name')).to.be('My Cool App');
expect(localforage.config('storeName')).to.be('my_store_front_v1');
expect(localforage.config('version')).to.be(2.0);
});
it('uses the config values in ' + localforage.driver(), function(done) {

@@ -96,4 +109,4 @@ localforage.config({

} else if (localforage.driver() === localforage.WEBSQL) {
window.openDatabase('My Cool App', (2.0).toString(),
'', 4980736).transaction(function(t) {
window.openDatabase('My Cool App', String(2.0), '',
4980736).transaction(function(t) {
t.executeSql('SELECT * FROM storeFront WHERE key = ? ' +

@@ -100,0 +113,0 @@ 'LIMIT 1', ['some key'],

72

test/test.datatypes.js

@@ -29,6 +29,6 @@ /* global before:true, beforeEach:true, describe:true, expect:true, it:true, Modernizr:true */

it('saves a string [callback]', function(done) {
localforage.setItem('office', 'Initech', function(setValue) {
localforage.setItem('office', 'Initech', function(err, setValue) {
expect(setValue).to.be('Initech');
localforage.getItem('office', function(value) {
localforage.getItem('office', function(err, value) {
expect(value).to.be(setValue);

@@ -51,7 +51,7 @@ done();

it('saves a number [callback]', function(done) {
localforage.setItem('number', 546, function(setValue) {
localforage.setItem('number', 546, function(err, setValue) {
expect(setValue).to.be(546);
expect(setValue).to.be.a('number');
localforage.getItem('number', function(value) {
localforage.getItem('number', function(err, value) {
expect(value).to.be(setValue);

@@ -77,7 +77,7 @@ expect(value).to.be.a('number');

it('saves a boolean [callback]', function(done) {
localforage.setItem('boolean', false, function(setValue) {
localforage.setItem('boolean', false, function(err, setValue) {
expect(setValue).to.be(false);
expect(setValue).to.be.a('boolean');
localforage.getItem('boolean', function(value) {
localforage.getItem('boolean', function(err, value) {
expect(value).to.be(setValue);

@@ -103,6 +103,6 @@ expect(value).to.be.a('boolean');

it('saves null [callback]', function(done) {
localforage.setItem('null', null, function(setValue) {
localforage.setItem('null', null, function(err, setValue) {
expect(setValue).to.be(null);
localforage.getItem('null', function(value) {
localforage.getItem('null', function(err, value) {
expect(value).to.be(null);

@@ -125,6 +125,6 @@ done();

it('saves undefined as null [callback]', function(done) {
localforage.setItem('null', undefined, function(setValue) {
localforage.setItem('null', undefined, function(err, setValue) {
expect(setValue).to.be(null);
localforage.getItem('null', function(value) {
localforage.getItem('null', function(err, value) {
expect(value).to.be(null);

@@ -147,7 +147,7 @@ done();

it('saves a float [callback]', function(done) {
localforage.setItem('float', 546.041, function(setValue) {
localforage.setItem('float', 546.041, function(err, setValue) {
expect(setValue).to.be(546.041);
expect(setValue).to.be.a('number');
localforage.getItem('float', function(value) {
localforage.getItem('float', function(err, value) {
expect(value).to.be(setValue);

@@ -174,7 +174,7 @@ expect(value).to.be.a('number');

it('saves an array [callback]', function(done) {
localforage.setItem('array', arrayToSave, function(setValue) {
localforage.setItem('array', arrayToSave, function(err, setValue) {
expect(setValue.length).to.be(arrayToSave.length);
expect(setValue instanceof Array).to.be(true);
localforage.getItem('array', function(value) {
localforage.getItem('array', function(err, value) {
expect(value.length).to.be(arrayToSave.length);

@@ -215,3 +215,3 @@ expect(value instanceof Array).to.be(true);

it('saves a nested object [callback]', function(done) {
localforage.setItem('obj', objectToSave, function(setValue) {
localforage.setItem('obj', objectToSave, function(err, setValue) {
expect(Object.keys(setValue).length)

@@ -221,3 +221,3 @@ .to.be(Object.keys(objectToSave).length);

localforage.getItem('obj', function(value) {
localforage.getItem('obj', function(err, value) {
expect(Object.keys(value).length)

@@ -265,3 +265,3 @@ .to.be(Object.keys(objectToSave).length);

var response = request.response;
localforage.setItem('ab', response, function(sab) {
localforage.setItem('ab', response, function(err, sab) {
expect(sab.toString())

@@ -275,3 +275,3 @@ .to.be('[object ArrayBuffer]');

// open transaction issue?
localforage.getItem('ab', function(arrayBuff) {
localforage.getItem('ab', function(err, arrayBuff) {
expect(arrayBuff.toString())

@@ -301,4 +301,4 @@ .to.be('[object ArrayBuffer]');

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Int8Array).to.be(true);

@@ -323,4 +323,4 @@ expect(readValue[2]).to.be(array[2]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Uint8Array).to.be(true);

@@ -346,4 +346,4 @@ expect(readValue[0]).to.be(array[0]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Uint8ClampedArray)

@@ -371,4 +371,4 @@ .to.be(true);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Int16Array).to.be(true);

@@ -393,4 +393,4 @@ expect(readValue[0]).to.be(array[0]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Uint16Array).to.be(true);

@@ -415,4 +415,4 @@ expect(readValue[0]).to.be(array[0]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Int32Array).to.be(true);

@@ -437,4 +437,4 @@ expect(readValue[0]).to.be(array[0]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Uint32Array).to.be(true);

@@ -459,4 +459,4 @@ expect(readValue[0]).to.be(array[0]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Float32Array).to.be(true);

@@ -481,4 +481,4 @@ expect(readValue[0]).to.be(array[0]);

localforage.setItem('array', array, function(writeValue) {
localforage.getItem('array', function(readValue) {
localforage.setItem('array', array, function(err, writeValue) {
localforage.getItem('array', function(err, readValue) {
expect(readValue instanceof Float64Array).to.be(true);

@@ -485,0 +485,0 @@ expect(readValue[0]).to.be(array[0]);

38

test/test.nodriver.js

@@ -27,5 +27,5 @@ /* global describe:true, expect:true, it:true, Modernizr:true */

it('fails to load localForage [callback]', function(done) {
localforage.ready(function(error) {
expect(error).to.be.an(Error);
expect(error.message).to.be('No available storage method found.');
localforage.ready(function(err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('No available storage method found.');
done();

@@ -36,5 +36,5 @@ });

it('fails to load localForage [promise]', function(done) {
localforage.ready().then(null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to.be('No available storage method found.');
localforage.ready().then(null, function(err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('No available storage method found.');
done();

@@ -53,6 +53,5 @@ });

it('fails to setDriver ' + driverName + ' [callback]', function(done) {
localforage.setDriver(driverName, null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to
.be('No available storage method found.');
localforage.setDriver(driverName, null, function(err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('No available storage method found.');
done();

@@ -63,6 +62,5 @@ });

it('fails to setDriver ' + driverName + ' [promise]', function(done) {
localforage.setDriver(driverName).then(null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to
.be('No available storage method found.');
localforage.setDriver(driverName).then(null, function(err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('No available storage method found.');
done();

@@ -74,5 +72,5 @@ });

it('fails to setDriver using array parameter [callback]', function(done) {
localforage.setDriver(DRIVERS, null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to.be('No available storage method found.');
localforage.setDriver(DRIVERS, null, function(err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('No available storage method found.');
done();

@@ -83,5 +81,5 @@ });

it('fails to setDriver using array parameter [promise]', function(done) {
localforage.setDriver(DRIVERS).then(null, function(error) {
expect(error).to.be.an(Error);
expect(error.message).to.be('No available storage method found.');
localforage.setDriver(DRIVERS).then(null, function(err) {
expect(err).to.be.an(Error);
expect(err.message).to.be('No available storage method found.');
done();

@@ -88,0 +86,0 @@ });

2

test/webworker-client.js

@@ -15,3 +15,3 @@ /*globals importScripts:true, self:true */

localforage.setItem('web worker', e.data.value, function() {
localforage.getItem('web worker', function(value) {
localforage.getItem('web worker', function(err, value) {
self.postMessage({

@@ -18,0 +18,0 @@ body: value

.jscsrc

Sorry, the diff of this file is not supported yet

dist/localforage.js

Sorry, the diff of this file is too big to display

test/test.main.html

Sorry, the diff of this file is not supported yet

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