| # Copyright 2014 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. |
| |
| from telemetry.page import page |
| from telemetry.page import page_measurement |
| from telemetry.value import scalar |
| |
| |
| class PageForPolymerLoad(page.Page): |
| |
| def __init__(self, url, page_set): |
| super(PageForPolymerLoad, self).__init__( |
| url=url, |
| page_set=page_set) |
| self.script_to_evaluate_on_commit = ''' |
| document.addEventListener("polymer-ready", function() { |
| var unused = document.body.offsetHeight; |
| window.__polymer_ready_time = performance.now(); |
| setTimeout(function() { |
| window.__polymer_ready = true; |
| }, 1000); |
| }) |
| ''' |
| |
| def RunNavigateSteps(self, action_runner): |
| action_runner.NavigateToPage(self) |
| action_runner.WaitForJavaScriptCondition('window.__polymer_ready') |
| |
| |
| class PolymerLoadMeasurement(page_measurement.PageMeasurement): |
| def MeasurePage(self, _, tab, results): |
| result = int(tab.EvaluateJavaScript('__polymer_ready_time')) |
| results.AddValue(scalar.ScalarValue( |
| results.current_page, 'Total', 'ms', result)) |