/usr/include/thunderbird/IProgressObserver.h is in thunderbird-dev 1:52.8.0-1~deb8u1.
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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 | /* -*- 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/. */
#ifndef mozilla_image_IProgressObserver_h
#define mozilla_image_IProgressObserver_h
#include "mozilla/WeakPtr.h"
#include "nsISupports.h"
#include "nsRect.h"
namespace mozilla {
namespace image {
/**
* An interface for observing changes to image state, as reported by
* ProgressTracker.
*
* This is the ImageLib-internal version of imgINotificationObserver,
* essentially, with implementation details that code outside of ImageLib
* shouldn't see.
*
* XXX(seth): It's preferable to avoid adding anything to this interface if
* possible. In the long term, it would be ideal to get to a place where we can
* just use the imgINotificationObserver interface internally as well.
*/
class IProgressObserver : public SupportsWeakPtr<IProgressObserver>
{
public:
MOZ_DECLARE_WEAKREFERENCE_TYPENAME(IProgressObserver)
// Subclasses may or may not be XPCOM classes, so we just require that they
// implement AddRef and Release.
NS_IMETHOD_(MozExternalRefCountType) AddRef(void) = 0;
NS_IMETHOD_(MozExternalRefCountType) Release(void) = 0;
// imgINotificationObserver methods:
virtual void Notify(int32_t aType, const nsIntRect* aRect = nullptr) = 0;
virtual void OnLoadComplete(bool aLastPart) = 0;
// imgIOnloadBlocker methods:
virtual void BlockOnload() = 0;
virtual void UnblockOnload() = 0;
// Other, internal-only methods:
virtual void SetHasImage() = 0;
virtual bool NotificationsDeferred() const = 0;
virtual void SetNotificationsDeferred(bool aDeferNotifications) = 0;
protected:
virtual ~IProgressObserver() { }
};
} // namespace image
} // namespace mozilla
#endif // mozilla_image_IProgressObserver_h
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