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    nsIDOMStorageManager

    This interface provides methods for managing data stored in the offline apps cache.
    1.0
    36
    Introduced
    Gecko 1.9
    Inherits from: nsISupports Last changed in Gecko 2.0 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)

    Implemented by @mozilla.org/dom/storagemanager;1 as a service:

    var domStorageManager = Components.classes["@mozilla.org/dom/storagemanager;1"]
                            .getService(Components.interfaces.nsIDOMStorageManager);
    

    Method overview

    void clearOfflineApps();
    nsIDOMStorage getLocalStorageForPrincipal(in nsIPrincipal aPrincipal, in DOMString aDocumentURI);
    long getUsage(in AString aOwnerDomain);

    Methods

    clearOfflineApps()

    Clears keys owned by offline applications. All data owned by a domain with the "offline-app" permission is removed from the database.

    void clearOfflineApps();
    
    Parameters

    None.

    getLocalStorageForPrincipal()

    Requires Gecko 1.9.1 (Firefox 3.5 / Thunderbird 3.0 / SeaMonkey 2.0)

    Returns the instance of the localStorage object for aURI's origin. This is used to ensure that only one local storage area exists for a given origin.

    nsIDOMStorage getLocalStorageForPrincipal(
      nsIPrincipal aPrincipal,
      DOMString aDocumentURI
    );
    
    Parameters
    aPrincipal
    The principal for which to return the local storage object.
    aDocumentURI
    The document's URI.
    Return value

    The local storage object for the specified principal.

    getUsage()

    Returns the amount of disk space used by a domain. Usage is checked against the domain of the page that set the key (the owner domain), not the domain of the storage object.

    long getUsage(
      AString aOwnerDomain
    );
    
    Parameters
    aOwnerDomain
    The domain to check.
    Return value

    The space usage of the domain, in bytes.

    See also

    Document Tags and Contributors

    Contributors to this page: Wjjohnst, trevorh, Sheppy
    Last updated by: Sheppy,