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mouse_and_screen_resolution.py
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mouse_and_screen_resolution.py
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#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# Script name: mouse_and_screen_resolution.py
# Purpose: Sets mouse position and screen resolution for Windows 7 32-bit slaves
# Author(s): Zambrano Gasparnian, Armen <armenzg@mozilla.com>
# Target: Python 2.5
#
from optparse import OptionParser
try:
import json
except:
import simplejson as json
import os, sys
import urllib2
import win32api
import win32con
import pywintypes
import platform
import time
from win32api import GetSystemMetrics
default_screen_resolution = {"x": 1024, "y": 768}
default_mouse_position = {"x": 1010, "y": 10}
def wfetch(url, retries=5):
while retries >= 0:
try:
return urllib2.urlopen(url).read()
except urllib2.HTTPError, e:
print("Failed to fetch '%s': %s" % (url, str(e)))
if retries == 0:
raise
print("Retrying...")
retries = retries - 1
except urllib2.URLError, e:
print("Failed to fetch '%s': %s" % (url, str(e)))
if retries == 0:
raise
print("Retrying...")
retries = retries - 1
time.sleep(60)
raise Exception("Could not fetch url '%s'" % url)
def main():
'''
We load the configuration file from:
http://hg.mozilla.org/mozilla-central/raw-file/default/build/machine-configuration.json
'''
parser = OptionParser()
parser.add_option("--configuration-url", dest="configuration_url", type="string",
help="It indicates from where to download the configuration file.")
(options, args) = parser.parse_args()
if options.configuration_url == None:
print "You need to specify --configuration-url."
return 1
if not (platform.version().startswith('6.1.760') and not 'PROGRAMFILES(X86)' in os.environ):
# We only want to run this for Windows 7 32-bit
print "INFO: This script was written to be used with Windows 7 32-bit machines."
return 0
try:
conf_dict = json.loads(wfetch(options.configuration_url))
new_screen_resolution = conf_dict["win7"]["screen_resolution"]
new_mouse_position = conf_dict["win7"]["mouse_position"]
except urllib2.HTTPError, e:
print "This branch does not seem to have the configuration file %s" % str(e)
print "Let's fail over to 1024x768."
new_screen_resolution = default_screen_resolution
new_mouse_position = default_mouse_position
except urllib2.URLError, e:
print "INFRA-ERROR: We couldn't reach hg.mozilla.org: %s" % str(e)
return 1
except Exception, e:
print "ERROR: We were not expecting any more exceptions: %s" % str(e)
return 1
current_screen_resolution = queryScreenResolution()
print "Screen resolution (current): (%(x)s, %(y)s)" % (current_screen_resolution)
if current_screen_resolution == new_screen_resolution:
print "No need to change the screen resolution."
else:
print "Changing the screen resolution..."
try:
changeScreenResolution(new_screen_resolution)
except Exception, e:
print "INFRA-ERROR: We have attempted to change the screen resolution but " + \
"something went wrong: %s" % str(e)
return 1
time.sleep(5) # just in case
current_screen_resolution = queryScreenResolution()
print "Screen resolution (new): (%(x)s, %(y)s)" % current_screen_resolution
print "Mouse position (current): (%(x)s, %(y)s)" % (queryMousePosition())
win32api.SetCursorPos((new_mouse_position["x"], new_mouse_position["y"]))
current_mouse_position = queryMousePosition()
print "Mouse position (new): (%(x)s, %(y)s)" % (current_mouse_position)
if current_screen_resolution != new_screen_resolution or current_mouse_position != new_mouse_position:
print "INFRA-ERROR: The new screen resolution or mouse positions are not what we expected"
return 1
else:
return 0
def queryMousePosition():
pos = win32api.GetCursorPos()
return {"x": pos[0], "y": pos[1]}
def queryScreenResolution():
return {"x": GetSystemMetrics (0), "y": GetSystemMetrics (1)}
def queryScreenFrequency():
try:
p=win32api.EnumDisplaySettings(None, win32con.ENUM_CURRENT_SETTINGS)
return p.DisplayFrequency
except Exception, e:
print "INFRA-ERROR: We were expecting to get the screen frequency instead we " + \
"got this exception => %s" % str(e)
return 1
def changeScreenResolution(new):
# Set new screen resolution
display_modes = {}
n = 0
while True:
try:
devmode = win32api.EnumDisplaySettings (None, n)
except pywintypes.error:
break
else:
key = (
devmode.BitsPerPel,
devmode.PelsWidth,
devmode.PelsHeight,
devmode.DisplayFrequency
)
display_modes[key] = devmode
n += 1
mode_required = (32, new["x"], new["y"], queryScreenFrequency())
devmode = display_modes[mode_required]
win32api.ChangeDisplaySettings (devmode, 0)
if __name__ == '__main__':
sys.exit(main())