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/* 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 protocol PBackground;
include PBackgroundSharedTypes;
include "mozilla/dom/localstorage/SerializationHelpers.h";
using mozilla::dom::LSValue
from "mozilla/dom/LSValue.h";
namespace mozilla {
namespace dom {
/**
* The observer protocol sends "storage" event notifications for changes to
* LocalStorage that take place in other processes as their Snapshots are
* Checkpointed to the canonical Datastore in the parent process. Same-process
* notifications are generated as mutations happen.
*
* Note that mutations are never generated for redundant mutations. Setting the
* key "foo" to have value "bar" when it already has value "bar" will never
* result in a "storage" event.
*/
async protocol PBackgroundLSObserver
{
manager PBackground;
parent:
/**
* Sent by the LSObserver's destructor when it's going away. Any Observe
* messages received after this is sent will be ignored. Which is fine,
* because there should be nothing around left to hear. In the event a new
* page came into existence, its Observer creation will happen (effectively)
* synchronously.
*/
async DeleteMe();
child:
/**
* Only sent by the parent in response to a deletion request.
*/
async __delete__();
/**
* Sent by the parent process as Snapshots from other processes are
* Checkpointed, applying their mutations. The child actor currently directly
* shunts these to Storage::NotifyChange to generate "storage" events for
* immediate dispatch.
*/
async Observe(PrincipalInfo principalInfo,
uint32_t privateBrowsingId,
nsString documentURI,
nsString key,
LSValue oldValue,
LSValue newValue);
};
} // namespace dom
} // namespace mozilla
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