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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIStreamListener.idl"
+
+interface nsIFile;
+interface nsIDownloadObserver;
+
+/**
+ * nsIDownloader
+ *
+ * A downloader is a special implementation of a nsIStreamListener that will
+ * make the contents of the stream available as a file. This may utilize the
+ * disk cache as an optimization to avoid an extra copy of the data on disk.
+ * The resulting file is valid from the time the downloader completes until
+ * the last reference to the downloader is released.
+ */
+[scriptable, uuid(fafe41a9-a531-4d6d-89bc-588a6522fb4e)]
+interface nsIDownloader : nsIStreamListener
+{
+ /**
+ * Initialize this downloader
+ *
+ * @param observer
+ * the observer to be notified when the download completes.
+ * @param downloadLocation
+ * the location where the stream contents should be written.
+ * if null, the downloader will select a location and the
+ * resulting file will be deleted (or otherwise made invalid)
+ * when the downloader object is destroyed. if an explicit
+ * download location is specified then the resulting file will
+ * not be deleted, and it will be the callers responsibility
+ * to keep track of the file, etc.
+ */
+ void init(in nsIDownloadObserver observer,
+ in nsIFile downloadLocation);
+};
+
+[scriptable, uuid(44b3153e-a54e-4077-a527-b0325e40924e)]
+interface nsIDownloadObserver : nsISupports
+{
+ /**
+ * Called to signal a download that has completed.
+ */
+ void onDownloadComplete(in nsIDownloader downloader,
+ in nsIRequest request,
+ in nsISupports ctxt,
+ in nsresult status,
+ in nsIFile result);
+};