<!DOCTYPE html>
<!--
Copyright (c) 2015 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="/base/base.html">

<script>
'use strict';

/**
 * @fileoverview Provides the base class for all container classes.
 */
tv.exportTo('tv.c.trace_model', function() {
  function EventContainer() {
    this.important = true;
    this.bounds = undefined;
  }

  EventContainer.prototype = {
    /*
     * @return {String} An identifier that is made up of this parent's
     *    stableIdentifier plus this countainer identifier.
     */
    get stableId() {
      throw new Error('Not implemented');
    },

    updateBounds: function() {
      throw new Error('Not implemented');
    },

    shiftTimestampsForward: function(amount) {
      throw new Error('Not implemented');
    },

    iterateAllEventsInThisContainer: function(eventTypePredicate,
                                              callback, opt_this) {
      throw new Error('Not implemented');
    },

    iterateAllChildEventContainers: function(callback, opt_this) {
      throw new Error('Not implemented');
    },

    /**
     * Iterates all events in the model and calls callback on each event.
     * @param {function(event)} callback The callback called for every event.
     */
    iterateAllEvents: function(callback, opt_this) {
      this.iterateAllEventContainers(function(ec) {
        ec.iterateAllEventsInThisContainer(
            function(eventType) { return true; },
            callback, opt_this);
      });
    },

    iterateAllEventContainers: function(callback, opt_this) {
      function visit(ec) {
        callback.call(opt_this, ec);
        ec.iterateAllChildEventContainers(visit);
      }
      visit(this);
    }
  };

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