dom/webidl/FMRadio.webidl@6474c204b198 (annotated)
dom/webidl/FMRadio.webidl
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
| michael@0 | 3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 4 | |
| michael@0 | 5 | interface FMRadio : EventTarget { |
| michael@0 | 6 | /* Indicates if the FM radio is enabled. */ |
| michael@0 | 7 | readonly attribute boolean enabled; |
| michael@0 | 8 | |
| michael@0 | 9 | /* Indicates if the antenna is plugged and available. */ |
| michael@0 | 10 | readonly attribute boolean antennaAvailable; |
| michael@0 | 11 | |
| michael@0 | 12 | /** |
| michael@0 | 13 | * Current frequency in MHz. The value will be null if the FM radio is |
| michael@0 | 14 | * disabled. |
| michael@0 | 15 | */ |
| michael@0 | 16 | readonly attribute double? frequency; |
| michael@0 | 17 | |
| michael@0 | 18 | /* The upper bound of frequency in MHz. */ |
| michael@0 | 19 | readonly attribute double frequencyUpperBound; |
| michael@0 | 20 | |
| michael@0 | 21 | /* The lower bound of frequency in MHz. */ |
| michael@0 | 22 | readonly attribute double frequencyLowerBound; |
| michael@0 | 23 | |
| michael@0 | 24 | /** |
| michael@0 | 25 | * The difference in frequency between two "adjacent" channels, in MHz. That |
| michael@0 | 26 | * is, any two radio channels' frequencies differ by at least channelWidth |
| michael@0 | 27 | * MHz. Usually, the value is one of: |
| michael@0 | 28 | * - 0.05 MHz |
| michael@0 | 29 | * - 0.1 MHz |
| michael@0 | 30 | * - 0.2 MHz |
| michael@0 | 31 | */ |
| michael@0 | 32 | readonly attribute double channelWidth; |
| michael@0 | 33 | |
| michael@0 | 34 | /* Fired when the FM radio is enabled. */ |
| michael@0 | 35 | attribute EventHandler onenabled; |
| michael@0 | 36 | |
| michael@0 | 37 | /* Fired when the FM radio is disabled. */ |
| michael@0 | 38 | attribute EventHandler ondisabled; |
| michael@0 | 39 | |
| michael@0 | 40 | /** |
| michael@0 | 41 | * Fired when the antenna becomes available or unavailable, i.e., fired when |
| michael@0 | 42 | * the antennaAvailable attribute changes. |
| michael@0 | 43 | */ |
| michael@0 | 44 | attribute EventHandler onantennaavailablechange; |
| michael@0 | 45 | |
| michael@0 | 46 | /* Fired when the FM radio's frequency is changed. */ |
| michael@0 | 47 | attribute EventHandler onfrequencychange; |
| michael@0 | 48 | |
| michael@0 | 49 | /** |
| michael@0 | 50 | * Power the FM radio off. The disabled event will be fired if this request |
| michael@0 | 51 | * completes successfully. |
| michael@0 | 52 | */ |
| michael@0 | 53 | DOMRequest disable(); |
| michael@0 | 54 | |
| michael@0 | 55 | /** |
| michael@0 | 56 | * Power the FM radio on, and tune the radio to the given frequency in MHz. |
| michael@0 | 57 | * This will fail if the given frequency is out of range. The enabled event |
| michael@0 | 58 | * and frequencychange event will be fired if this request completes |
| michael@0 | 59 | * successfully. |
| michael@0 | 60 | */ |
| michael@0 | 61 | DOMRequest enable(double frequency); |
| michael@0 | 62 | |
| michael@0 | 63 | /** |
| michael@0 | 64 | * Tune the FM radio to the given frequency. This will fail if the given |
| michael@0 | 65 | * frequency is out of range. |
| michael@0 | 66 | * |
| michael@0 | 67 | * Note that the FM radio may not tuned to the exact frequency given. To get |
| michael@0 | 68 | * the frequency the radio is actually tuned to, wait for the request to fire |
| michael@0 | 69 | * sucess (or wait for the frequencychange event to fire), and then read the |
| michael@0 | 70 | * frequency attribute. |
| michael@0 | 71 | */ |
| michael@0 | 72 | DOMRequest setFrequency(double frequency); |
| michael@0 | 73 | |
| michael@0 | 74 | /** |
| michael@0 | 75 | * Tell the FM radio to seek up to the next channel. If the frequency is |
| michael@0 | 76 | * successfully changed, the frequencychange event will be triggered. |
| michael@0 | 77 | * |
| michael@0 | 78 | * Only one seek is allowed at once: If the radio is seeking when the seekUp |
| michael@0 | 79 | * is called, error will be fired. |
| michael@0 | 80 | */ |
| michael@0 | 81 | DOMRequest seekUp(); |
| michael@0 | 82 | |
| michael@0 | 83 | /** |
| michael@0 | 84 | * Tell the FM radio to seek down to the next channel. If the frequency is |
| michael@0 | 85 | * successfully changed, the frequencychange event will be triggered. |
| michael@0 | 86 | * |
| michael@0 | 87 | * Only one seek is allowed at once: If the radio is seeking when the |
| michael@0 | 88 | * seekDown is called, error will be fired. |
| michael@0 | 89 | */ |
| michael@0 | 90 | DOMRequest seekDown(); |
| michael@0 | 91 | |
| michael@0 | 92 | /** |
| michael@0 | 93 | * Cancel the seek action. If the radio is not currently seeking up or down, |
| michael@0 | 94 | * error will be fired. |
| michael@0 | 95 | */ |
| michael@0 | 96 | DOMRequest cancelSeek(); |
| michael@0 | 97 | }; |
| michael@0 | 98 |
