Emilio Cobos Álvarez
2223a8bee2
Automatically generated with:
cp dom/.clang-format xpcom/ && mach format xpcom/**.{cpp,h}
Manual changes:
* nsTDependentSubstring.cpp was relying on include order, prevent that
from being changed by clang-format.
* Missing nsAtom.h include from nsGkAtoms.h
* nsWindowsHelpers.h needed to keep the include order
* MemoryPressureLevelMac.h needed mozilla/Attributes.h
Differential Revision: https://phabricator.services.mozilla.com/D311687
65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/* 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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#ifndef nsObserverList_h_
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#define nsObserverList_h_
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#include "nsCOMArray.h"
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#include "nsHashKeys.h"
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#include "nsIObserver.h"
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#include "nsISupports.h"
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#include "nsMaybeWeakPtr.h"
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#include "nsSimpleEnumerator.h"
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class nsObserverList : public nsCharPtrHashKey {
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friend class nsObserverService;
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public:
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explicit nsObserverList(const char* aKey) : nsCharPtrHashKey(aKey) {
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MOZ_COUNT_CTOR(nsObserverList);
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}
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nsObserverList(nsObserverList&& aOther)
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: nsCharPtrHashKey(std::move(aOther)),
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mObservers(std::move(aOther.mObservers)) {
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MOZ_COUNT_CTOR(nsObserverList);
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}
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MOZ_COUNTED_DTOR(nsObserverList)
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[[nodiscard]] nsresult AddObserver(nsIObserver* aObserver, bool aOwnsWeak);
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[[nodiscard]] nsresult RemoveObserver(nsIObserver* aObserver);
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void NotifyObservers(nsISupports* aSubject, const char* aTopic,
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const char16_t* aSomeData);
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void GetObserverList(nsISimpleEnumerator** aEnumerator);
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// Clone an array with the observers of this category.
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// The array is filled in last-added-first order.
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nsCOMArray<nsIObserver> ReverseCloneObserverArray();
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// Like FillObserverArray(), but only for strongly held observers.
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void AppendStrongObservers(nsCOMArray<nsIObserver>& aArray);
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private:
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nsMaybeWeakPtrArray<nsIObserver> mObservers;
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};
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class nsObserverEnumerator final : public nsSimpleEnumerator {
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public:
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NS_DECL_NSISIMPLEENUMERATOR
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explicit nsObserverEnumerator(nsObserverList* aObserverList);
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const nsID& DefaultInterface() override { return NS_GET_IID(nsIObserver); }
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private:
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~nsObserverEnumerator() override = default;
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int32_t mIndex; // Counts up from 0
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nsCOMArray<nsIObserver> mObservers;
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};
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#endif /* nsObserverList_h_ */
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