81 lines
2.8 KiB
JavaScript
81 lines
2.8 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 { Cu } = require("chrome");
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const {
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Front,
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FrontClassWithSpec,
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custom
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} = require("devtools/shared/protocol");
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const { profilerSpec } = require("devtools/shared/specs/profiler");
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loader.lazyRequireGetter(this, "events", "sdk/event/core");
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loader.lazyRequireGetter(this, "extend", "sdk/util/object", true);
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/**
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* This can be used on older Profiler implementations, but the methods cannot
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* be changed -- you must introduce a new method, and detect the server.
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*/
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exports.ProfilerFront = FrontClassWithSpec(profilerSpec, {
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initialize: function (client, form) {
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Front.prototype.initialize.call(this, client, form);
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this.actorID = form.profilerActor;
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this.manage(this);
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this._onProfilerEvent = this._onProfilerEvent.bind(this);
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events.on(this, "*", this._onProfilerEvent);
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},
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destroy: function () {
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events.off(this, "*", this._onProfilerEvent);
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Front.prototype.destroy.call(this);
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},
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/**
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* If using the protocol.js Fronts, then make stringify default,
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* since the read/write mechanisms will expose it as an object anyway, but
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* this lets other consumers who connect directly (xpcshell tests, Gecko Profiler) to
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* have unchanged behaviour.
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*/
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getProfile: custom(function (options) {
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return this._getProfile(extend({ stringify: true }, options));
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}, {
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impl: "_getProfile"
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}),
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/**
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* Also emit an old `eventNotification` for older consumers of the profiler.
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*/
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_onProfilerEvent: function (eventName, data) {
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// If this event already passed through once, don't repropagate
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if (data.relayed) {
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return;
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}
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data.relayed = true;
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if (eventName === "eventNotification") {
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// If this is `eventNotification`, this is coming from an older Gecko (<Fx42)
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// that doesn't use protocol.js style events. Massage it to emit a protocol.js
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// style event as well.
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events.emit(this, data.topic, data);
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} else {
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// Otherwise if a modern protocol.js event, emit it also as `eventNotification`
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// for compatibility reasons on the client (like for any add-ons/Gecko Profiler
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// using this event) and log a deprecation message if there is a listener.
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this.conn.emit("eventNotification", {
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subject: data.subject,
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topic: data.topic,
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data: data.data,
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details: data.details
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});
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if (this.conn._getListeners("eventNotification").length) {
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Cu.reportError(`
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ProfilerActor's "eventNotification" on the DebuggerClient has been deprecated.
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Use the ProfilerFront found in "devtools/server/actors/profiler".`);
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}
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}
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},
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});
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