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601d68ae79
Note that there is one key difference between this implementation and the spec. In this patch MozBlobBuilder.getBlob("content/type"); returns a Blob and clears the MozBlobBuilder. In the spec the BlobBuilder is not cleared. Thus,
let bb = new MozBlobBuilder();
MozBlobBuilder.append("foo");
let blob1 = MozBlobBuilder.getBlob("content/type");
// blob1 contains "foo"
MozBlobBuilder.append("bar");
let blob2 = MozBlobBuilder.getBlob("content/type");
// blob2 contains "bar", the spec says it should contain "foobar".
IMO, the spec behavior optimizes for the wrong case. BlobBuilder will probably be used mostly as a one-shot API. Additionally, the spec requires the BlobBuilder to hang on to potentially large amounts of memory between the getBlob() call and when the BlobBuilder is GCd.
These issues have been raised on the listserv.
90 lines
3.4 KiB
Plaintext
90 lines
3.4 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Corporation
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* Portions created by the Initial Developer are Copyright (C) 2007
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "domstubs.idl"
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%{C++
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#include "jsapi.h"
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%}
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interface nsIDOMFileError;
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interface nsIInputStream;
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interface nsIURI;
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interface nsIPrincipal;
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interface nsIDOMBlob;
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[scriptable, uuid(d5237f31-443a-460b-9e42-449a135346f0)]
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interface nsIDOMBlob : nsISupports
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{
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readonly attribute unsigned long long size;
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readonly attribute DOMString type;
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[noscript] readonly attribute nsIInputStream internalStream;
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// The caller is responsible for releasing the internalUrl from the
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// moz-filedata: protocol handler
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[noscript] DOMString getInternalUrl(in nsIPrincipal principal);
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[optional_argc] nsIDOMBlob mozSlice(in long long start,
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[optional] in long long end,
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[optional] in DOMString contentType);
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};
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[scriptable, uuid(91c9ebd9-2a4a-4a38-9412-ef492a2799be)]
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interface nsIDOMFile : nsIDOMBlob
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{
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readonly attribute DOMString name;
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readonly attribute DOMString mozFullPath;
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// This performs no security checks!
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[noscript] readonly attribute DOMString mozFullPathInternal;
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// These are all deprecated and not in spec. Will be removed in a future
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// release
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readonly attribute DOMString fileName;
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readonly attribute unsigned long long fileSize;
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DOMString getAsText(in DOMString encoding); // raises(FileException) on retrieval
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DOMString getAsDataURL(); // raises(FileException) on retrieval
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DOMString getAsBinary(); // raises(FileException) on retrieval
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};
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[scriptable, uuid(c4a77171-039b-4f84-97f9-820fb51626af)]
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interface nsIDOMBlobBuilder : nsISupports
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{
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nsIDOMBlob getBlob([optional] in DOMString contentType);
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[implicit_jscontext] void append(in jsval data);
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};
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