forked from mirrors/gecko-dev
6ac44b30e0
This new method fetches pending synced changes from the extension
storage store, and passes them to `storage.onChanged` listeners.
This allows extensions that listen for these events to know when a
sync happened, which Kinto supported as well.
To guard against misuse, this method is implemented on a separate
`mozISyncedExtensionStorageArea` interface. To avoid multiple
inheritance (if `mozI{Synced, Configurable}ExtensionStorageArea` both
inherited from `mozIExtensionStorageArea`, which base method is called
when?), both of these internal-ish interfaces now inherit from
`nsISupports` instead.
Finally, because `fetchPendingSyncChanges` can return changes for
multiple extensions, `mozIExtensionStorageListener.onChanged` now takes
the affected extension ID as its first argument.
Differential Revision: https://phabricator.services.mozilla.com/D76976
40 lines
1.4 KiB
C++
40 lines
1.4 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 mozilla_extensions_storage_ExtensionStorageComponents_h_
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#define mozilla_extensions_storage_ExtensionStorageComponents_h_
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#include "mozIExtensionStorageArea.h"
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#include "nsCOMPtr.h"
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extern "C" {
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// Implemented in Rust, in the `webext_storage_bridge` crate.
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nsresult NS_NewExtensionStorageSyncArea(mozIExtensionStorageArea** aResult);
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} // extern "C"
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namespace mozilla {
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namespace extensions {
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namespace storage {
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// The C++ constructor for a `storage.sync` area. This wrapper exists because
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// `components.conf` requires a component class constructor to return an
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// `already_AddRefed<T>`, but Rust doesn't have such a type. So we call the
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// Rust constructor using a `nsCOMPtr` (which is compatible with Rust's
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// `xpcom::RefPtr`) out param, and return that.
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already_AddRefed<mozIExtensionStorageArea> NewSyncArea() {
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nsCOMPtr<mozIExtensionStorageArea> storage;
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nsresult rv = NS_NewExtensionStorageSyncArea(getter_AddRefs(storage));
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return nullptr;
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}
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return storage.forget();
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}
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} // namespace storage
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} // namespace extensions
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} // namespace mozilla
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#endif // mozilla_extensions_storage_ExtensionStorageComponents_h_
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