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1aa777d5e1
The `webext_storage_bridge` crate introduced in this commit bridges the `mozIExtensionStorageArea` XPCOM interface to the `webext_storage` Rust component from Application Services. This commit factors out the following parts from bug 1623245, so that we can land them piecemeal: * The `mozIExtensionStorageArea` interfaces, which implement all the methods needed to support the `storage.sync` API. * A Rust implementation of the above, in `StorageSyncArea`. * A `StorageTask` type, for dispatching storage operations to a background task queue. * A `LazyStore`, which wraps the Rust component's `Store` and lazily initializes it on the background queue the first time it's used. * A `StorageSyncService`, which is our singleton. It holds on to a configured `StorageSyncArea`, and hands out references to it via `getInterface`. Eventually, we'll extend this to support syncing, too. Differential Revision: https://phabricator.services.mozilla.com/D71897
41 lines
1.4 KiB
C++
41 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(
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mozIConfigurableExtensionStorageArea** 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<mozIConfigurableExtensionStorageArea> NewSyncArea() {
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nsCOMPtr<mozIConfigurableExtensionStorageArea> 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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