An interface describing a global application service that handles performing
background update checks and provides utilities for selecting and
downloading update patches.
Checks for available updates in the background using the listener provided
by the application update service for background checks.
Selects the best update to install from a list of available updates.
| updates | An array of updates that are available |
| updateCount | The length of the |updates| array |
Adds a listener that receives progress and state information about the
update that is currently being downloaded, e.g. to update a user
interface.
| listener | An object implementing nsIRequestObserver and optionally nsIProgressEventSink that is to be notified of state and progress information as the update is downloaded. |
Removes a listener that is receiving progress and state information
about the update that is currently being downloaded.
| listener | The listener object to remove. |
Apply the OS update which has been downloaded and staged as applied.
| update | The update has been downloaded and staged as applied. @throws if the update object is not an OS update. |
Get the Active Updates directory
| An nsIFile for the active updates directory. |
Pauses the active update download process
The Update Checker used for background update checking.
Whether or not there is an download happening at the moment.
Whether or not the Update Service can check for updates. This is a function
of whether or not application update is disabled by the application and the
platform the application is running on.
Whether or not the Update Service can download and install updates.
On Windows, this is a function of whether or not the maintenance service
is installed and enabled. On other systems, and as a fallback on Windows,
this depends on whether the current user has write access to the install
directory.
Whether or not a different instance is handling updates of this
installation. This currently only ever returns true on Windows
when 2 instances of an application are open or when both the Metro
and Desktop browsers are open. Only one of the instances will actually
handle updates for the installation.
Whether the Update Service is able to stage updates.