| <!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"> |
| <link rel="import" href="/base/range.html"> |
| |
| <script> |
| 'use strict'; |
| |
| tr.exportTo('tr.model', function() { |
| |
| /** |
| * EventContainer is a base class for any class in the trace model that |
| * contains child events or child EventContainers. |
| * |
| * For all EventContainers, updateBounds() must be called after modifying the |
| * container's events if an up-to-date bounds is expected. |
| * |
| * @constructor |
| */ |
| function EventContainer() { |
| this.important = true; |
| this.bounds_ = new tr.b.Range(); |
| } |
| |
| EventContainer.prototype = { |
| |
| /** |
| * @return {String} A stable and unique identifier that describes this |
| * container's position in the event tree relative to the root. If an event |
| * container 'B' is a child to another event container 'A', then container |
| * B's stable ID would be 'A.B'. |
| */ |
| get stableId() { |
| throw new Error('Not implemented'); |
| }, |
| |
| /** |
| * Returns the bounds of the event container, which describe the range |
| * of timestamps for all ancestor events. |
| */ |
| get bounds() { |
| return this.bounds_; |
| }, |
| |
| // TODO(charliea): A default implementation of this method could likely be |
| // provided that uses 'iterateAllEvents'. |
| /** |
| * Updates the bounds of the event container. After updating, this.bounds |
| * will describe the range of timestamps of all ancestor events. |
| */ |
| updateBounds: function() { |
| throw new Error('Not implemented'); |
| }, |
| |
| // TODO(charliea): A default implementation of this method could likely be |
| // provided that uses 'iterateAllEvents'. |
| /** |
| * Shifts the timestamps for ancestor events by 'amount' milliseconds. |
| */ |
| shiftTimestampsForward: function(amount) { |
| throw new Error('Not implemented'); |
| }, |
| |
| /** |
| * Iterates over all child events. |
| */ |
| iterateAllEventsInThisContainer: function(eventTypePredicate, |
| callback, opt_this) { |
| throw new Error('Not implemented'); |
| }, |
| |
| /** |
| * Iterates over all child containers. |
| */ |
| iterateAllChildEventContainers: function(callback, opt_this) { |
| throw new Error('Not implemented'); |
| }, |
| |
| /** |
| * Iterates over all ancestor events. |
| */ |
| iterateAllEvents: function(callback, opt_this) { |
| this.iterateAllEventContainers(function(ec) { |
| ec.iterateAllEventsInThisContainer( |
| function(eventType) { return true; }, |
| callback, opt_this); |
| }); |
| }, |
| |
| /** |
| * Iterates over this container and all ancestor containers. |
| */ |
| iterateAllEventContainers: function(callback, opt_this) { |
| function visit(ec) { |
| callback.call(opt_this, ec); |
| ec.iterateAllChildEventContainers(visit); |
| } |
| visit(this); |
| } |
| }; |
| |
| return { |
| EventContainer: EventContainer |
| }; |
| }); |
| </script> |
