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# Copyright 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.
from telemetry.core.backends.webdriver import webdriver_tab_backend
class WebDriverTabListBackend(object):
def __init__(self, browser_backend):
self._browser_backend = browser_backend
# Stores the window handles.
self._tab_list = []
def Init(self):
self._UpdateTabList()
def New(self, timeout=None):
# Webdriver API doesn't support tab controlling.
raise NotImplementedError()
def __iter__(self):
self._UpdateTabList()
return self._tab_list.__iter__()
def __len__(self):
self._UpdateTabList()
return len(self._tab_list)
def __getitem__(self, index):
self._UpdateTabList()
if len(self._tab_list) <= index:
raise IndexError('list index out of range')
return self._tab_list[index]
def _UpdateTabList(self):
window_handles = self._browser_backend.driver.window_handles
old_tab_list = self._tab_list
self._tab_list = []
for window_handle in window_handles:
tab = None
for old_tab in old_tab_list:
if old_tab.window_handle == window_handle:
tab = old_tab
break
else:
tab = webdriver_tab_backend.WebDriverTabBackend(
self._browser_backend, window_handle)
self._tab_list.append(tab)
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