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# Copyright 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.
import time
from telemetry.page import page as page_module
from telemetry.page import page_set as page_set_module
from telemetry.page import shared_page_state
INTERACTION_NAME = 'Interaction.PageLoading'
# How long to wait for the page to finish rendering.
LOADING_DELAY_S = 5
class NewTabPagePage(page_module.Page):
def __init__(self, page_set):
super(NewTabPagePage, self).__init__(
name='newtabpagepage',
url='chrome://newtab',
shared_page_state_class=shared_page_state.SharedDesktopPageState,
page_set=page_set)
self.archive_data_file = 'data/new_tab_page_page.json'
self.script_to_evaluate_on_commit = (
"console.time('" + INTERACTION_NAME + "');")
def RunNavigateSteps(self, action_runner):
url = self.file_path_url_with_scheme if self.is_file else self.url
action_runner.Navigate(
url, script_to_evaluate_on_commit=self.script_to_evaluate_on_commit)
# We pause for a while so the async JS gets a chance to run.
time.sleep(LOADING_DELAY_S)
# TODO(beaudoin): We have no guarantee the page has fully rendered and the
# JS has fully executed at that point. The right way to do it would be to
# toggle a Javascript variable in the page code and to wait for it here.
# This should be done when window.performance.mark is supported and we
# migrate to it instead of calling console.timeEnd here. If the test is
# failing flakily, we should use a better heuristic.
action_runner.ExecuteJavaScript(
"console.timeEnd('" + INTERACTION_NAME + "');")
class NewTabPagePageSet(page_set_module.PageSet):
def __init__(self):
super(NewTabPagePageSet, self).__init__(
archive_data_file='data/new_tab_page_page.json',
bucket=page_set_module.PUBLIC_BUCKET)
self.AddUserStory(NewTabPagePage(page_set=self))
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