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/* |
Copyright (c) 2004-2006, The Dojo Foundation |
All Rights Reserved. |
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Licensed under the Academic Free License version 2.1 or above OR the |
modified BSD license. For more information on Dojo licensing, see: |
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http://dojotoolkit.org/community/licensing.shtml |
*/ |
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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 () { |
}; |
}; |
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