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Merge branch 'localStorage' of https://github.com/ascorbic/phonegap-android into ascorbic-localStorage

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This commit is contained in:
Bryce Curtis 2010-11-21 17:58:49 -06:00
commit 87fd9665fe
1 changed files with 63 additions and 1 deletions
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64
framework/assets/js/storage.js
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@ -308,9 +308,71 @@ DroidDB_openDatabase = function(name, version, display_name, size) {
return db;
};
/**
* For browsers with no localStorage we emulate it with SQLite. Follows the w3c api.
* TODO: Do similar for sessionStorage.
*/
var CupcakeLocalStorage = function() {
try {
this.db = openDatabase('localStorage', '1.0', 'localStorage', 2621440);
var storage = {};
this.db.transaction(
function (transaction) {
transaction.executeSql('CREATE TABLE IF NOT EXISTS storage (id NVARCHAR(40) PRIMARY KEY, body NVARCHAR(255))');
transaction.executeSql('SELECT * FROM storage', [], function(tx, result) {
for(var i = 0; i < result.rows.length; i++) {
storage[result.rows.item(i)['id']] = result.rows.item(i)['body'];
}
});
},
function (err) {
alert(err.message);
}
);
this.setItem = function(key, val) {
console.log('set');
storage[key] = val;
this.db.transaction(
function (transaction) {
transaction.executeSql('CREATE TABLE IF NOT EXISTS storage (id NVARCHAR(40) PRIMARY KEY, body NVARCHAR(255))');
transaction.executeSql('REPLACE INTO storage (id, body) values(?,?)', [key,val]);
}
);
}
this.getItem = function(key) {
return storage[key];
}
this.removeItem = function(key) {
delete storage[key];
this.db.transaction(
function (transaction) {
transaction.executeSql('CREATE TABLE IF NOT EXISTS storage (id NVARCHAR(40) PRIMARY KEY, body NVARCHAR(255))');
transaction.executeSql('DELETE FROM storage where id=?', [key]);
}
);
}
} catch(e) {
alert("Database error "+e+".");
return;
}
};
PhoneGap.addConstructor(function() {
if (typeof window.openDatabase == "undefined") {
if (typeof window.openDatabase == "undefined") {
navigator.openDatabase = window.openDatabase = DroidDB_openDatabase;
window.droiddb = new DroidDB();
}
if (typeof window.localStorage == "undefined") {
navigator.localStorage = window.localStorage = new CupcakeLocalStorage();
}
});