Rev 1318 | Blame | Compare with Previous | Last modification | View Log | RSS feed
/*
Copyright (c) 2004-2006, The Dojo Foundation
All Rights Reserved.
Licensed under the Academic Free License version 2.1 or above OR the
modified BSD license. For more information on Dojo licensing, see:
http://dojotoolkit.org/community/licensing.shtml
*/
dojo.provide("dojo.storage");
dojo.require("dojo.lang.*");
dojo.require("dojo.event.*");
dojo.storage = new function () {
};
dojo.declare("dojo.storage", null, {SUCCESS:"success", FAILED:"failed", PENDING:"pending", SIZE_NOT_AVAILABLE:"Size not available", SIZE_NO_LIMIT:"No size limit", namespace:"default", onHideSettingsUI:null, initialize:function () {
dojo.unimplemented("dojo.storage.initialize");
}, isAvailable:function () {
dojo.unimplemented("dojo.storage.isAvailable");
}, put:function (key, value, resultsHandler) {
dojo.unimplemented("dojo.storage.put");
}, get:function (key) {
dojo.unimplemented("dojo.storage.get");
}, hasKey:function (key) {
return (this.get(key) != null);
}, getKeys:function () {
dojo.unimplemented("dojo.storage.getKeys");
}, clear:function () {
dojo.unimplemented("dojo.storage.clear");
}, remove:function (key) {
dojo.unimplemented("dojo.storage.remove");
}, isPermanent:function () {
dojo.unimplemented("dojo.storage.isPermanent");
}, getMaximumSize:function () {
dojo.unimplemented("dojo.storage.getMaximumSize");
}, hasSettingsUI:function () {
return false;
}, showSettingsUI:function () {
dojo.unimplemented("dojo.storage.showSettingsUI");
}, hideSettingsUI:function () {
dojo.unimplemented("dojo.storage.hideSettingsUI");
}, getType:function () {
dojo.unimplemented("dojo.storage.getType");
}, isValidKey:function (keyName) {
if ((keyName == null) || (typeof keyName == "undefined")) {
return false;
}
return /^[0-9A-Za-z_]*$/.test(keyName);
}});
dojo.storage.manager = new function () {
this.currentProvider = null;
this.available = false;
this._initialized = false;
this._providers = [];
this.namespace = "default";
this.initialize = function () {
this.autodetect();
};
this.register = function (name, instance) {
this._providers[this._providers.length] = instance;
this._providers[name] = instance;
};
this.setProvider = function (storageClass) {
};
this.autodetect = function () {
if (this._initialized == true) {
return;
}
var providerToUse = null;
for (var i = 0; i < this._providers.length; i++) {
providerToUse = this._providers[i];
if (dojo.lang.isUndefined(djConfig["forceStorageProvider"]) == false && providerToUse.getType() == djConfig["forceStorageProvider"]) {
providerToUse.isAvailable();
break;
} else {
if (dojo.lang.isUndefined(djConfig["forceStorageProvider"]) == true && providerToUse.isAvailable()) {
break;
}
}
}
if (providerToUse == null) {
this._initialized = true;
this.available = false;
this.currentProvider = null;
dojo.raise("No storage provider found for this platform");
}
this.currentProvider = providerToUse;
for (var i in providerToUse) {
dojo.storage[i] = providerToUse[i];
}
dojo.storage.manager = this;
dojo.storage.initialize();
this._initialized = true;
this.available = true;
};
this.isAvailable = function () {
return this.available;
};
this.isInitialized = function () {
if (this.currentProvider.getType() == "dojo.storage.browser.FlashStorageProvider" && dojo.flash.ready == false) {
return false;
} else {
return this._initialized;
}
};
this.supportsProvider = function (storageClass) {
try {
var provider = eval("new " + storageClass + "()");
var results = provider.isAvailable();
if (results == null || typeof results == "undefined") {
return false;
}
return results;
}
catch (exception) {
return false;
}
};
this.getProvider = function () {
return this.currentProvider;
};
this.loaded = function () {
};
};