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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* 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 imgIRequest;
%{C++
#include "nsRect.h"
%}
[ptr] native nsIntRect(nsIntRect);
[scriptable, builtinclass, uuid(03da5641-a333-454a-a859-036d0bb683b7)]
interface imgINotificationObserver : nsISupports
{
// GetWidth() and GetHeight() can now be used to retrieve the size of the
// image.
const long SIZE_AVAILABLE = 1;
// A region of the image (indicated by the |aRect| argument to |notify|) has
// changed, and needs to be redrawn. This is triggered both for incremental
// rendering as the image gets decoded and for changes due to animation.
const long FRAME_UPDATE = 2;
// The first frame of the image is now decoded and ready to draw.
const long FRAME_COMPLETE = 3;
// The entire image has been loaded. That doesn't mean that it has been
// decoded, but it does mean that imgIContainer::Draw is guaranteed to succeed
// (modulo decode errors, at least) if you specify FLAG_SYNC_DECODE.
const long LOAD_COMPLETE = 4;
// The entire image has been decoded.
const long DECODE_COMPLETE = 5;
// The decoded version of the image has been discarded. Content should never
// change as a result of this notification - discarding is an implementation
// detail. This notification should normally only be observed by tests.
const long DISCARD = 6;
// The image was drawn without being locked. This notification is part of the
// image locking mechanism that prevents visible images from being discarded;
// generally only image locking code needs to observe it.
const long UNLOCKED_DRAW = 7;
// The image is animated.
const long IS_ANIMATED = 8;
// The image is transparent.
const long HAS_TRANSPARENCY = 9;
[noscript, notxpcom, nostdcall]
void notify(in imgIRequest aProxy, in long aType,
[const] in nsIntRect aRect);
};