84 lines
2.7 KiB
JavaScript
84 lines
2.7 KiB
JavaScript
/* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const {
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audionodeSpec,
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webAudioSpec,
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AUTOMATION_METHODS,
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NODE_CREATION_METHODS,
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NODE_ROUTING_METHODS,
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} = require("devtools/shared/specs/webaudio");
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const protocol = require("devtools/shared/protocol");
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const AUDIO_NODE_DEFINITION = require("devtools/server/actors/utils/audionodes.json");
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/**
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* The corresponding Front object for the AudioNodeActor.
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*
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* @attribute {String} type
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* The type of audio node, like "OscillatorNode", "MediaElementAudioSourceNode"
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* @attribute {Boolean} source
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* Boolean indicating if the node is a source node, like BufferSourceNode,
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* MediaElementAudioSourceNode, OscillatorNode, etc.
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* @attribute {Boolean} bypassable
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* Boolean indicating if the audio node is bypassable (splitter,
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* merger and destination nodes, for example, are not)
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*/
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const AudioNodeFront = protocol.FrontClassWithSpec(audionodeSpec, {
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form: function (form, detail) {
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if (detail === "actorid") {
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this.actorID = form;
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return;
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}
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this.actorID = form.actor;
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this.type = form.type;
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this.source = form.source;
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this.bypassable = form.bypassable;
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},
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initialize: function (client, form) {
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protocol.Front.prototype.initialize.call(this, client, form);
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// if we were manually passed a form, this was created manually and
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// needs to own itself for now.
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if (form) {
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this.manage(this);
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}
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}
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});
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exports.AudioNodeFront = AudioNodeFront;
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/**
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* The corresponding Front object for the WebAudioActor.
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*/
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const WebAudioFront = protocol.FrontClassWithSpec(webAudioSpec, {
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initialize: function (client, { webaudioActor }) {
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protocol.Front.prototype.initialize.call(this, client, { actor: webaudioActor });
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this.manage(this);
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},
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/**
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* If connecting to older geckos (<Fx43), where audio node actor's do not
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* contain `type`, `source` and `bypassable` properties, fetch
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* them manually here.
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*/
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_onCreateNode: protocol.preEvent("create-node", function (audionode) {
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if (!audionode.type) {
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return audionode.getType().then(type => {
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audionode.type = type;
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audionode.source = !!AUDIO_NODE_DEFINITION[type].source;
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audionode.bypassable = !AUDIO_NODE_DEFINITION[type].unbypassable;
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});
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}
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return null;
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}),
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});
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WebAudioFront.AUTOMATION_METHODS = new Set(AUTOMATION_METHODS);
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WebAudioFront.NODE_CREATION_METHODS = new Set(NODE_CREATION_METHODS);
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WebAudioFront.NODE_ROUTING_METHODS = new Set(NODE_ROUTING_METHODS);
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exports.WebAudioFront = WebAudioFront;
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