forked from mirrors/gecko-dev
bcce5eb099
MozReview-Commit-ID: IMu1sJLxQYy --HG-- extra : rebase_source : aa5a6f1a67ad0d4d83bcb0308d3dd6fe0de0ee0f
32 lines
1,011 B
JavaScript
32 lines
1,011 B
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 { getDisplayedRequests } = require("./requests");
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function isSidebarToggleButtonDisabled(state) {
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return getDisplayedRequests(state).isEmpty();
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}
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const EPSILON = 0.001;
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function getWaterfallScale(state) {
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const { requests, timingMarkers, ui } = state;
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if (requests.firstStartedMillis == +Infinity) {
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return null;
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}
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const lastEventMillis = Math.max(requests.lastEndedMillis,
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timingMarkers.firstDocumentDOMContentLoadedTimestamp,
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timingMarkers.firstDocumentLoadTimestamp);
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const longestWidth = lastEventMillis - requests.firstStartedMillis;
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return Math.min(Math.max(ui.waterfallWidth / longestWidth, EPSILON), 1);
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}
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module.exports = {
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isSidebarToggleButtonDisabled,
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getWaterfallScale,
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};
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