/usr/share/idl/thunderbird/nsIIncrementalDownload.idl is in thunderbird-dev 1:52.8.0-1~deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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 "nsIRequest.idl"
interface nsIURI;
interface nsIFile;
interface nsIRequestObserver;
/**
* An incremental download object attempts to fetch a file piecemeal over time
* in an effort to minimize network bandwidth usage.
*
* Canceling a background download does not cause the file on disk to be
* deleted.
*/
[scriptable, uuid(6687823f-56c4-461d-93a1-7f6cb7dfbfba)]
interface nsIIncrementalDownload : nsIRequest
{
/**
* Initialize the incremental download object. If the destination file
* already exists, then only the remaining portion of the file will be
* fetched.
*
* NOTE: The downloader will create the destination file if it does not
* already exist. It will create the file with the permissions 0600 if
* needed. To affect the permissions of the file, consumers of this
* interface may create an empty file at the specified destination prior to
* starting the incremental download.
*
* NOTE: Since this class may create a temporary file at the specified
* destination, it is advisable for the consumer of this interface to specify
* a file name for the destination that would not tempt the user into
* double-clicking it. For example, it might be wise to append a file
* extension like ".part" to the end of the destination to protect users from
* accidentally running "blah.exe" before it is a complete file.
*
* @param uri
* The URI to fetch.
* @param destination
* The location where the file is to be stored.
* @param chunkSize
* The size of the chunks to fetch. A non-positive value results in
* the default chunk size being used.
* @param intervalInSeconds
* The amount of time to wait between fetching chunks. Pass a
* negative to use the default interval, or 0 to fetch the remaining
* part of the file in one chunk.
*/
void init(in nsIURI uri, in nsIFile destination, in long chunkSize,
in long intervalInSeconds);
/**
* The URI being fetched.
*/
readonly attribute nsIURI URI;
/**
* The URI being fetched after any redirects have been followed. This
* attribute is set just prior to calling OnStartRequest on the observer
* passed to the start method.
*/
readonly attribute nsIURI finalURI;
/**
* The file where the download is being written.
*/
readonly attribute nsIFile destination;
/**
* The total number of bytes for the requested file. This attribute is set
* just prior to calling OnStartRequest on the observer passed to the start
* method.
*
* This attribute has a value of -1 if the total size is unknown.
*/
readonly attribute long long totalSize;
/**
* The current number of bytes downloaded so far. This attribute is set just
* prior to calling OnStartRequest on the observer passed to the start
* method.
*
* This attribute has a value of -1 if the current size is unknown.
*/
readonly attribute long long currentSize;
/**
* Start the incremental download.
*
* @param observer
* An observer to be notified of various events. OnStartRequest is
* called when finalURI and totalSize have been determined or when an
* error occurs. OnStopRequest is called when the file is completely
* downloaded or when an error occurs. If this object implements
* nsIProgressEventSink, then its OnProgress method will be called as
* data is written to the destination file. If this object implements
* nsIInterfaceRequestor, then it will be assigned as the underlying
* channel's notification callbacks, which allows it to provide a
* nsIAuthPrompt implementation if needed by the channel, for example.
* @param ctxt
* User defined object forwarded to the observer's methods.
*/
void start(in nsIRequestObserver observer,
in nsISupports ctxt);
};
|