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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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 "nsISupports.idl"
interface nsIURI;
/**
* This interface provides a way to stream data to the web browser. This allows
* loading of data from sources which can not be accessed using URIs and
* nsIWebNavigation.
*/
[scriptable, uuid(86d02f0e-219b-4cfc-9c88-bd98d2cce0b8)]
interface nsIWebBrowserStream : nsISupports
{
/**
* Prepare to load a stream of data. When this function returns successfully,
* it must be paired by a call to closeStream.
*
* @param aBaseURI
* The base URI of the data. Must not be null. Relative
* URIs will be resolved relative to this URI.
* @param aContentType
* ASCII string giving the content type of the data. If rendering
* content of this type is not supported, this method fails.
* This string may include a charset declaration, for example:
* text/html;charset=ISO-8859-1
*
* @throw NS_ERROR_NOT_AVAILABLE
* The requested content type is not supported.
* @throw NS_ERROR_IN_PROGRESS
* openStream was called twice without an intermediate closeStream.
*/
void openStream(in nsIURI aBaseURI, in ACString aContentType);
/**
* Append data to this stream.
* @param aData The data to append
* @param aLen Length of the data to append.
*
* @note To append more than 4 GB of data, call this method multiple times.
*/
void appendToStream([const, array, size_is(aLen)] in octet aData,
in unsigned long aLen);
/**
* Notifies the browser that all the data has been appended. This may notify
* the user that the browser is "done loading" in some form.
*
* @throw NS_ERROR_UNEXPECTED
* This method was called without a preceding openStream.
*/
void closeStream();
};
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