Implemented by
[scriptable, uuid(bacca1ac-1b01-4a6f-9e91-c2ead1f7d2c0)]
interface nsIDownloadManager : nsISupports
Constants
Download type for generic file download.
const
short
DOWNLOAD_TYPE_DOWNLOAD = 0
Download state for uninitialized download object.
const
short
DOWNLOAD_NOTSTARTED = -1
Download is currently transferring data.
const
short
DOWNLOAD_DOWNLOADING = 0
Download completed including any processing of the target file. (completed)
const
short
DOWNLOAD_FINISHED = 1
Transfer failed due to error. (completed)
const
short
DOWNLOAD_FAILED = 2
Download was canceled by the user. (completed)
const
short
DOWNLOAD_CANCELED = 3
Transfer was paused by the user.
const
short
DOWNLOAD_PAUSED = 4
Download is active but data has not yet been received.
const
short
DOWNLOAD_QUEUED = 5
Transfer request was blocked by parental controls proxies. (completed)
const
short
DOWNLOAD_BLOCKED_PARENTAL = 6
Transferred download is being scanned by virus scanners.
const
short
DOWNLOAD_SCANNING = 7
A virus was detected in the download. The target will most likely no longer exist. (completed)
const
short
DOWNLOAD_DIRTY = 8
Win specific: Request was blocked by zone policy settings. (see bug #416683) (completed)
const
short
DOWNLOAD_BLOCKED_POLICY = 9
Attributes
The number of files currently being downloaded.
readonly attribute
long
activeDownloadCount
An enumeration of active nsIDownloads
readonly attribute
nsISimpleEnumerator
activeDownloads
Whether or not there are downloads that can be cleaned up (removed) i.e. downloads that have completed, have failed or have been canceled.
readonly attribute
boolean
canCleanUp
The database connection to the downloads database.
readonly attribute
mozIStorageConnection
DBConnection
Returns the platform default downloads directory.
readonly attribute
nsILocalFile
defaultDownloadsDirectory
Returns the user configured downloads directory.
The path is dependent on two user configurable prefs
set in preferences:
browser.download.folderList
Indicates the location users wish to save downloaded
files too.
Values:
0 - The desktop is the default download location.
1 - The system's downloads folder is the default download location.
2 - The default download location is elsewhere as specified in
browser.download.dir. If invalid, userDownloadsDirectory
will fallback on defaultDownloadsDirectory.
browser.download.dir -
A local path the user may have selected at some point
where downloaded files are saved. The use of which is
enabled when folderList equals 2.
readonly attribute
nsILocalFile
userDownloadsDirectory
Methods
Creates an nsIDownload and adds it to be managed by the download manager.
@param aSource The source URI of the transfer. Must not be null.
@param aTarget The target URI of the transfer. Must not be null.
@param aDisplayName The user-readable description of the transfer.
Can be empty.
@param aMIMEInfo The MIME info associated with the target,
including MIME type and helper app when appropriate.
This parameter is optional.
@param startTime Time when the download started
@param aTempFile The location of a temporary file; i.e. a file in which
the received data will be stored, but which is not
equal to the target file. (will be moved to the real
target by the caller, when the download is finished)
May be null.
@param aCancelable An object that can be used to abort the download.
Must not be null.
@return The newly created download item with the passed-in properties.
@note This does not actually start a download. If you want to add and
start a download, you need to create an nsIWebBrowserPersist, pass it
as the aCancelable object, call this method, set the progressListener
as the returned download object, then call saveURI.
nsIDownload
addDownload(in short aDownloadType, in nsIURI aSource, in nsIURI aTarget, in AString aDisplayName, in nsIMIMEInfo aMIMEInfo, in PRTime aStartTime, in nsILocalFile aTempFile, in nsICancelable aCancelable)
Adds a listener from the download manager.
void
addListener(in nsIDownloadProgressListener aListener)
Cancels the download with the specified ID if it's currently in-progress. This calls cancel(NS_BINDING_ABORTED) on the nsICancelable provided by the download. @param aID The unique ID of the download. @throws NS_ERROR_FAILURE if the download is not in-progress.
void
cancelDownload(in unsigned long aID)
Removes completed, failed, and canceled downloads from the list. Also notifies observers of the "download-manager-remove-download" topic with a null subject to allow any DM consumers to react to the removals.
void
cleanUp()
Retrieves a download managed by the download manager. This can be one that is in progress, or one that has completed in the past and is stored in the database. @param aID The unique ID of the download. @return The download with the specified ID. @throws NS_ERROR_NOT_AVAILABLE if the download is not in the database.
nsIDownload
getDownload(in unsigned long aID)
Pause the specified download. @param aID The unique ID of the download. @throws NS_ERROR_FAILURE if the download is not in-progress.
void
pauseDownload(in unsigned long aID)
Removes the download with the specified id if it's not currently in-progress. Whereas cancelDownload simply cancels the transfer, but retains information about it, removeDownload removes all knowledge of it. Also notifies observers of the "download-manager-remove-download" topic with the download id as the subject to allow any DM consumers to react to the removal. @param aID The unique ID of the download. @throws NS_ERROR_FAILURE if the download is active.
void
removeDownload(in unsigned long aID)
Removes all inactive downloads that were started inclusively within the
specified time frame.
@param aBeginTime
The start time to remove downloads by in microseconds.
@param aEndTime
The end time to remove downloads by in microseconds.
void
removeDownloadsByTimeframe(in long long aBeginTime, in long long aEndTime)
Removes a listener from the download manager.
void
removeListener(in nsIDownloadProgressListener aListener)
Resume the specified download. @param aID The unique ID of the download. @throws NS_ERROR_FAILURE if the download is not in-progress.
void
resumeDownload(in unsigned long aID)
Retries a failed download.
@param aID The unique ID of the download.
@throws NS_ERROR_NOT_AVAILALE if the download id is not known.
@throws NS_ERROR_FAILURE if the download is not in the following states:
nsIDownloadManager::DOWNLOAD_CANCELED
nsIDownloadManager::DOWNLOAD_FAILED
void
retryDownload(in unsigned long aID)
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