зеркало из https://github.com/mozilla/gecko-dev.git
64 строки
1.7 KiB
JavaScript
64 строки
1.7 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Collects telemetry data for Tabview.
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*/
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let Telemetry = {
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TOPIC_GATHER_TELEMETRY: "gather-telemetry",
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/**
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* Initializes the object.
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*/
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init: function Telemetry_init() {
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Services.obs.addObserver(this, this.TOPIC_GATHER_TELEMETRY, false);
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},
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/**
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* Uninitializes the object.
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*/
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uninit: function Telemetry_uninit() {
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Services.obs.removeObserver(this, this.TOPIC_GATHER_TELEMETRY);
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},
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/**
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* Adds telemetry values to gather usage statistics.
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*/
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_collect: function Telemetry_collect() {
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let stackedGroupsCount = 0;
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let childCounts = [];
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GroupItems.groupItems.forEach(function (groupItem) {
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if (!groupItem.isEmpty()) {
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childCounts.push(groupItem.getChildren().length);
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if (groupItem.isStacked())
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stackedGroupsCount++;
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}
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});
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function addTelemetryValue(aId, aValue) {
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Services.telemetry.getHistogramById("PANORAMA_" + aId).add(aValue);
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}
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function median(aChildCounts) {
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aChildCounts.sort(function(x, y) { return x - y; });
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let middle = Math.floor(aChildCounts.length / 2);
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return aChildCounts[middle];
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}
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addTelemetryValue("GROUPS_COUNT", GroupItems.groupItems.length);
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addTelemetryValue("STACKED_GROUPS_COUNT", stackedGroupsCount);
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addTelemetryValue("MEDIAN_TABS_IN_GROUPS_COUNT", median(childCounts));
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},
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/**
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* Observes for gather telemetry topic.
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*/
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observe: function Telemetry_observe(aSubject, aTopic, aData) {
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if (!gWindow.PrivateBrowsingUtils.isWindowPrivate(gWindow))
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this._collect();
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}
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}
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