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1 /* This Source Code Form is subject to the terms of the Mozilla Public |
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2 * License, v. 2.0. If a copy of the MPL was not distributed with this |
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3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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4 |
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5 "use strict"; |
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6 |
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7 // This module basically translates system/events to a SDK standard events |
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8 // so that `map`, `filter` and other utilities could be used with them. |
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9 |
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10 module.metadata = { |
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11 "stability": "experimental" |
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12 }; |
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13 |
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14 const events = require("../system/events"); |
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15 const { emit } = require("../event/core"); |
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16 |
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17 let channel = {}; |
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18 |
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19 function forward({ subject, type, data }) |
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20 emit(channel, "data", { target: subject, type: type, data: data }); |
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21 |
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22 ["popupshowing", "popuphiding", "popupshown", "popuphidden", |
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23 "document-element-inserted", "DOMContentLoaded", "load" |
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24 ].forEach(function(type) events.on(type, forward)); |
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25 |
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26 exports.events = channel; |