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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
/**
* An actor architecture designed to allow compositional parent/content
* communications. The lifetime of a JSWindowActor{Child, Parent} is the `WindowGlobalParent`
* (for the parent-side) / `WindowGlobalChild` (for the child-side).
*
* See https://firefox-source-docs.mozilla.org/dom/ipc/jsactors.html for
* more details on how to use this architecture.
*/
interface nsISupports;
[ChromeOnly, Exposed=Window]
interface JSWindowActorParent {
[ChromeOnly]
constructor();
/**
* Actor initialization occurs after the constructor is called but before the
* first message is delivered. Until the actor is initialized, accesses to
* manager will fail.
*/
readonly attribute WindowGlobalParent? manager;
/**
* The WindowContext associated with this JSWindowActorParent. For
* JSWindowActorParent this is identical to `manager`, but is also exposed as
* `windowContext` for consistency with `JSWindowActorChild`. Until the actor
* is initialized, accesses to windowContext will fail.
*/
readonly attribute WindowContext? windowContext;
[Throws]
readonly attribute CanonicalBrowsingContext? browsingContext;
};
JSWindowActorParent includes JSActor;
[ChromeOnly, Exposed=Window]
interface JSWindowActorChild {
[ChromeOnly]
constructor();
/**
* Actor initialization occurs after the constructor is called but before the
* first message is delivered. Until the actor is initialized, accesses to
* manager will fail.
*/
readonly attribute WindowGlobalChild? manager;
/**
* The WindowContext associated with this JSWindowActorChild. Until the actor
* is initialized, accesses to windowContext will fail.
*/
readonly attribute WindowContext? windowContext;
[Throws]
readonly attribute Document? document;
[Throws]
readonly attribute BrowsingContext? browsingContext;
[Throws]
readonly attribute nsIDocShell? docShell;
/**
* NOTE: As this returns a window proxy, it may not be currently referencing
* the document associated with this JSWindowActor. Generally prefer using
* `document`.
*/
[Throws]
readonly attribute WindowProxy? contentWindow;
};
JSWindowActorChild includes JSActor;
/**
* Used by ChromeUtils.registerWindowActor() to register JS window actor.
*/
dictionary WindowActorOptions {
/**
* If this is set to `true`, allow this actor to be created for subframes,
* and not just toplevel window globals.
*/
boolean allFrames = false;
/**
* If this is set to `true`, allow this actor to be created for window
* globals loaded in chrome browsing contexts, such as those used to load the
* tabbrowser.
*/
boolean includeChrome = false;
/**
* An array of URL match patterns (as accepted by the MatchPattern
* class in MatchPattern.webidl) which restrict which pages the actor
* may be instantiated for. If this is defined, only documents URL which match
* are allowed to have the given actor created for them. Other
* documents will fail to have their actor constructed, returning nullptr.
*/
sequence<DOMString> matches;
/**
* An array of remote type which restricts the actor is allowed to instantiate
* in specific process type. If this is defined, the prefix of process type
* matches the remote type by prefix match is allowed to instantiate, ex: if
* Fission is enabled, the prefix of process type will be `webIsolated`, it
* can prefix match remote type either `web` or `webIsolated`. If not passed,
* all content processes are allowed to instantiate the actor.
*/
sequence<UTF8String> remoteTypes;
/**
* An array of MessageManagerGroup values which restrict which type
* of browser elements the actor is allowed to be loaded within.
*/
sequence<DOMString> messageManagerGroups;
/** This fields are used for configuring individual sides of the actor. */
WindowActorSidedOptions parent;
WindowActorChildOptions child;
};
dictionary WindowActorSidedOptions {
/**
* The JSM path which should be loaded for the actor on this side.
*
* Mutually exclusive with `esModuleURI`.
*
* If neither this nor `esModuleURI` is passed, the specified side cannot receive
* messages, but may send them using `sendAsyncMessage` or `sendQuery`.
*
* TODO: Remove this once m-c, c-c, and out-of-tree code migrations finish
* (bug 1866732).
*/
ByteString moduleURI;
/**
* The ESM path which should be loaded for the actor on this side.
*
* Mutually exclusive with `moduleURI`.
*
* If neither this nor `moduleURI` is passed, the specified side cannot
* receive messages, but may send them using `sendAsyncMessage` or
* `sendQuery`.
*/
ByteString esModuleURI;
};
dictionary WindowActorEventListenerOptions : AddEventListenerOptions {
/**
* If this attribute is set to true (the default), this event will cause the
* actor to be created when it is fired. If the attribute is set false, the
* actor will not receive the event unless it had already been created through
* some other mechanism.
*
* This should be set to `false` for event listeners which are only intended
* to perform cleanup operations, and will have no effect if the actor doesn't
* already exist.
*/
boolean createActor = true;
};
dictionary WindowActorChildOptions : WindowActorSidedOptions {
/**
* Events which this actor wants to be listening to. When these events fire,
* it will trigger actor creation, and then forward the event to the actor.
*
* NOTE: Listeners are not attached for windows loaded in chrome docshells.
*
* NOTE: `once` option is not support due to we register listeners in a shared
* location.
*/
record<DOMString, WindowActorEventListenerOptions> events;
/**
* An array of observer topics to listen to. An observer will be added for each
* topic in the list.
*
* Observer notifications in the list use nsGlobalWindowInner or
* nsGlobalWindowOuter object as their subject, and the events will only be
* dispatched to the corresponding window actor. If additional observer
* notification's subjects are needed, please file a bug for that.
*/
sequence<ByteString> observers;
};
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