nsIZipWriter Interface

 Adds data from a channel to the zip file. If the operation is performed
 on the queue then the channel will be opened asynchronously, otherwise
 the channel must support being opened synchronously.

 @param aZipEntry the path of the file entry
 @param aModTime the modification time of the entry in microseconds
 @param aCompression the compression level, 0 is no compression, 9 is best
 @param aChannel the channel to get the data from
 @param aQueue adds the operation to the background queue. Will be
        performed when processQueue is called.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_FILE_ALREADY_EXISTS if the path already exists in the zip
 @throws NS_ERROR_IN_PROGRESS if another operation is currently in progress

void addEntryChannel(in AUTF8String aZipEntry, in PRTime aModTime, in PRInt32 aCompression, in nsIChannel aChannel, in boolean aQueue)

 Adds a new directory entry to the zip file. If aZipEntry does not end with
 "/" then it will be added.

 @param aZipEntry the path of the directory entry
 @param aModTime the modification time of the entry in microseconds
 @param aQueue adds the operation to the background queue. Will be
        performed when processQueue is called.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_FILE_ALREADY_EXISTS if the path already exists in the
  file
 @throws NS_ERROR_IN_PROGRESS if another operation is currently in progress

void addEntryDirectory(in AUTF8String aZipEntry, in PRTime aModTime, in boolean aQueue)

 Adds a new file or directory to the zip file. If the specified file is
 a directory then this will be equivalent to a call to
 addEntryDirectory(aZipEntry, aFile.lastModifiedTime, aQueue)

 @param aZipEntry the path of the file entry
 @param aCompression the compression level, 0 is no compression, 9 is best
 @param aFile the file to get the data and modification time from
 @param aQueue adds the operation to the background queue. Will be
        performed when processQueue is called.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_FILE_ALREADY_EXISTS if the path already exists in the zip
 @throws NS_ERROR_IN_PROGRESS if another operation is currently in progress
 @throws NS_ERROR_FILE_NOT_FOUND if file does not exist

void addEntryFile(in AUTF8String aZipEntry, in PRInt32 aCompression, in nsIFile aFile, in boolean aQueue)

 Adds data from an input stream to the zip file.

 @param aZipEntry the path of the file entry
 @param aModTime the modification time of the entry in microseconds
 @param aCompression the compression level, 0 is no compression, 9 is best
 @param aStream the input stream to get the data from
 @param aQueue adds the operation to the background queue. Will be
        performed when processQueue is called.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_FILE_ALREADY_EXISTS if the path already exists in the zip
 @throws NS_ERROR_IN_PROGRESS if another operation is currently in progress

void addEntryStream(in AUTF8String aZipEntry, in PRTime aModTime, in PRInt32 aCompression, in nsIInputStream aStream, in boolean aQueue)

 Closes the zip file.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_IN_PROGRESS if another operation is currently in progress
 @throws <other-error> on failure to complete the zip file

void close()

 Returns a nsIZipEntry describing a specified zip entry or null if there
 is no such entry in the zip file

 @param aZipEntry the path of the entry

nsIZipEntry getEntry(in AUTF8String aZipEntry)

 Checks whether the zipfile contains an entry specified by zipEntry.

 @param aZipEntry the path of the entry

boolean hasEntry(in AUTF8String aZipEntry)

 Opens a zip file.

 @param aFile the zip file to open
 @param aIoFlags the open flags for the zip file from prio.h

 @throws NS_ERROR_ALREADY_INITIALIZED if a zip file is already open
 @throws NS_ERROR_INVALID_ARG if aFile is null
 @throws NS_ERROR_FILE_NOT_FOUND if aFile does not exist and flags did
  not allow for creation
 @throws NS_ERROR_FILE_CORRUPTED if the file does not contain zip markers
 @throws <other-error> on failure to open zip file (most likely corrupt
  or unsupported form)

void open(in nsIFile aFile, in PRInt32 aIoFlags)

 Processes all queued items until complete or some error occurs. The
 observer will be notified when the first operation starts and when the
 last operation completes. Any failures will be passed to the observer.
 The zip writer will be busy until the queue is complete or some error
 halted processing of the queue early. In the event of an early failure,
 remaining items will stay in the queue and calling processQueue will
 continue.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_IN_PROGRESS if the queue is already in progress

void processQueue(in nsIRequestObserver aObserver, in nsISupports aContext)

 Removes an existing entry from the zip file.

 @param aZipEntry the path of the entry to be removed
 @param aQueue adds the operation to the background queue. Will be
        performed when processQueue is called.

 @throws NS_ERROR_NOT_INITIALIZED if no zip file has been opened
 @throws NS_ERROR_IN_PROGRESS if another operation is currently in progress
 @throws NS_ERROR_FILE_NOT_FOUND if no entry with the given path exists
 @throws <other-error> on failure to update the zip file

void removeEntry(in AUTF8String aZipEntry, in boolean aQueue)