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94 lines
3.8 KiB
Plaintext
94 lines
3.8 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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interface imgINotificationObserver;
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interface imgIRequest;
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interface nsIChannel;
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interface nsILoadGroup;
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interface nsIPrincipal;
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interface nsIStreamListener;
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interface nsIURI;
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interface nsISimpleEnumerator;
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#include "nsIRequest.idl" // for nsLoadFlags
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#include "nsIContentPolicy.idl" // for nsContentPolicyType
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/**
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* imgILoader interface
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*
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* @author Stuart Parmenter <pavlov@netscape.com>
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* @version 0.3
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* @see imagelib2
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*/
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[scriptable, builtinclass, uuid(42ef3b0a-cd82-454b-b4c4-f3470014a68b)]
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interface imgILoader : nsISupports
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{
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// Extra flags to pass to loadImage if you want a load to use CORS
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// validation.
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const unsigned long LOAD_CORS_ANONYMOUS = 1 << 16;
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const unsigned long LOAD_CORS_USE_CREDENTIALS = 1 << 17;
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/**
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* Start the load and decode of an image.
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* @param aURI the URI to load
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* @param aInitialDocumentURI the URI that 'initiated' the load -- used for 3rd party cookie blocking
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* @param aReferrerURI the 'referring' URI
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* @param aLoadingPrincipal the principal of the loading document
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* @param aLoadGroup Loadgroup to put the image load into
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* @param aObserver the observer (may be null)
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* @param aCX some random data
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* @param aLoadFlags Load flags for the request
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* @param aCacheKey cache key to use for a load if the original
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* image came from a request that had post data
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* @param aContentPolicyType [optional] the nsContentPolicyType to
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* use for this load. Defaults to
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* nsIContentPolicy::TYPE_IMAGE
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* ImageLib does NOT keep a strong ref to the observer; this prevents
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* reference cycles. This means that callers of loadImage should
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* make sure to Cancel() the resulting request before the observer
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* goes away.
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*/
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imgIRequest loadImageXPCOM(in nsIURI aURI,
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in nsIURI aInitialDocumentURL,
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in nsIURI aReferrerURI,
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in nsIPrincipal aLoadingPrincipal,
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in nsILoadGroup aLoadGroup,
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in imgINotificationObserver aObserver,
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in nsISupports aCX,
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in nsLoadFlags aLoadFlags,
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in nsISupports cacheKey,
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[optional]
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in nsContentPolicyType aContentPolicyType);
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/**
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* Start the load and decode of an image.
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* @param aChannel the channel to load the image from. This must
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* already be opened before ths method is called, and there
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* must have been no OnDataAvailable calls for it yet.
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* @param aObserver the observer (may be null)
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* @param cx some random data
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* @param aListener [out]
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* A listener that you must send the channel's notifications and data to.
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* Can be null, in which case imagelib has found a cached image and is
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* not interested in the data. @aChannel will be canceled for you in
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* this case.
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*
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* ImageLib does NOT keep a strong ref to the observer; this prevents
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* reference cycles. This means that callers of loadImageWithChannel should
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* make sure to Cancel() the resulting request before the observer goes away.
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*/
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imgIRequest loadImageWithChannelXPCOM(in nsIChannel aChannel,
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in imgINotificationObserver aObserver,
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in nsISupports cx,
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out nsIStreamListener aListener);
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};
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