<!DOCTYPE html>
<!--
Copyright (c) 2013 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->

<link rel="import" href="/core/trace_model/timed_event.html">
<link rel="import" href="/core/analysis/util.html">

<script>
'use strict';

/**
 * @fileoverview Provides the Slice class.
 */
tv.exportTo('tv.c.trace_model', function() {
  /**
   * A Slice represents an interval of time plus parameters associated
   * with that interval.
   *
   * @constructor
   */
  function Slice(category, title, colorId, start, args, opt_duration,
                 opt_cpuStart, opt_cpuDuration) {
    tv.c.trace_model.TimedEvent.call(this, start);

    this.category = category || '';
    this.title = title;
    this.colorId = colorId;
    this.args = args;
    this.startStackFrame = undefined;
    this.endStackFrame = undefined;
    this.didNotFinish = false;
    this.inFlowEvents = [];
    this.outFlowEvents = [];
    this.subSlices = [];
    this.selfTime = undefined;
    this.cpuSelfTime = undefined;
    this.important = false;

    if (opt_duration !== undefined)
      this.duration = opt_duration;

    if (opt_cpuStart !== undefined)
      this.cpuStart = opt_cpuStart;

    if (opt_cpuDuration !== undefined)
      this.cpuDuration = opt_cpuDuration;
  }

  Slice.prototype = {
    __proto__: tv.c.trace_model.TimedEvent.prototype,


    get analysisTypeName() {
      return this.title;
    },

    get userFriendlyName() {
      return 'Slice ' + this.title + ' at ' +
          tv.c.analysis.tsString(this.start);
    },

    findDescendentSlice: function(targetTitle) {
      if (!this.subSlices)
        return undefined;

      for (var i = 0; i < this.subSlices.length; i++) {
        if (this.subSlices[i].title == targetTitle)
          return this.subSlices[i];
        var slice = this.subSlices[i].findDescendentSlice(targetTitle);
        if (slice) return slice;
      }
      return undefined;
    },

    iterateAllDescendents: function(callback, opt_this) {
      this.subSlices.forEach(callback, opt_this);
      this.subSlices.forEach(function(subSlice) {
        subSlice.iterateAllDescendents(callback, opt_this);
      }, opt_this);
    }
  };

  return {
    Slice: Slice
  };
});
</script>