зеркало из https://github.com/mozilla/gecko-dev.git
48 строки
1.8 KiB
Plaintext
48 строки
1.8 KiB
Plaintext
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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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[Constructor(DOMString url),
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Pref="dom.presentation.enabled",
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CheckAnyPermissions="presentation",
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AvailableIn="PrivilegedApps"]
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interface PresentationRequest : EventTarget {
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/*
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* A requesting page use start() to start a new session, and the session will
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* be returned with the promise. UA may show a prompt box with a list of
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* available devices and ask the user to grant permission, choose a device, or
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* cancel the operation.
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*
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* The promise is resolved when the presenting page is successfully loaded and
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* the communication channel is established, i.e., the session state is
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* "connected".
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*
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* The promise may be rejected duo to one of the following reasons:
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* - "OperationError": Unexpected error occurs.
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* - "NotFoundError": No available device.
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* - "AbortError": User dismiss/cancel the device prompt box.
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* - "NetworkError": Failed to establish the control channel or data channel.
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* - "TimeoutError": Presenting page takes too long to load.
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*/
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[Throws]
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Promise<PresentationSession> start();
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/*
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* UA triggers device discovery mechanism periodically and monitor device
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* availability.
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*
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* The promise may be rejected duo to one of the following reasons:
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* - "NotSupportedError": Unable to continuously monitor the availability.
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*/
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[Throws]
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Promise<PresentationAvailability> getAvailability();
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/*
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* It is called when a session associated with a PresentationRequest is created.
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* The event is fired for all sessions that are created for the controller.
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*/
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attribute EventHandler onsessionconnect;
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};
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