1<!DOCTYPE html> 2<!-- 3Copyright (c) 2015 The Chromium Authors. All rights reserved. 4Use of this source code is governed by a BSD-style license that can be 5found in the LICENSE file. 6--> 7 8<link rel="import" href="/tracing/ui/tracks/letter_dot_track.html"> 9<script> 10'use strict'; 11 12tr.exportTo('tr.ui.tracks', function() { 13 /** 14 * A track that displays an array of alert objects. 15 * @constructor 16 * @extends {LetterDotTrack} 17 */ 18 var AlertTrack = tr.ui.b.define( 19 'alert-track', tr.ui.tracks.LetterDotTrack); 20 21 AlertTrack.prototype = { 22 __proto__: tr.ui.tracks.LetterDotTrack.prototype, 23 24 decorate: function(viewport) { 25 tr.ui.tracks.LetterDotTrack.prototype.decorate.call(this, viewport); 26 this.heading = 'Alerts'; 27 this.alerts_ = undefined; 28 }, 29 30 get alerts() { 31 return this.alerts_; 32 }, 33 34 set alerts(alerts) { 35 this.alerts_ = alerts; 36 if (alerts === undefined) { 37 this.items = undefined; 38 return; 39 } 40 this.items = this.alerts_.map(function(alert) { 41 return new tr.ui.tracks.LetterDot( 42 alert, String.fromCharCode(9888), alert.colorId, alert.start); 43 }); 44 } 45 }; 46 47 return { 48 AlertTrack: AlertTrack 49 }; 50}); 51</script> 52