| [648] | 1 | from common import *
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| 2 |
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| [685] | 3 | from mava_simbrief import MavaSimbriefIntegrator
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| 4 |
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| [682] | 5 | from mlx.util import secondaryInstallation
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| 6 |
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| 7 | from cefpython3 import cefpython
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| 8 | from selenium import webdriver
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| 9 | from selenium.webdriver.chrome.options import Options
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| 10 |
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| [648] | 11 | import platform
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| 12 | import json
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| [682] | 13 | import time
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| [648] | 14 | import os
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| 15 | import re
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| [682] | 16 | import threading
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| 17 | import tempfile
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| 18 | import traceback
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| [648] | 19 |
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| 20 | #------------------------------------------------------------------------------
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| 21 |
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| 22 | ## @package mlx.gui.cef
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| 23 | #
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| 24 | # Some helper stuff related to the Chrome Embedded Framework
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| 25 |
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| 26 | #------------------------------------------------------------------------------
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| 27 |
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| 28 | # Indicate if we should quit
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| 29 | _toQuit = False
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| 30 |
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| [682] | 31 | # The Selenium thread
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| 32 | _seleniumHandler = None
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| 33 |
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| 34 | #------------------------------------------------------------------------------
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| 35 |
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| 36 | def getArgsFilePath():
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| 37 | """Get the path of the argument file."""
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| 38 | if os.name=="nt":
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| 39 | return os.path.join(tempfile.gettempdir(),
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| 40 | "mlxcef.args" +
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| 41 | (".secondary" if secondaryInstallation else ""))
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| 42 | else:
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| 43 | import pwd
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| 44 | return os.path.join(tempfile.gettempdir(),
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| 45 | "mlxcef." + pwd.getpwuid(os.getuid())[0] + ".args" +
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| 46 | (".secondary" if secondaryInstallation else ""))
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| 47 |
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| 48 | #------------------------------------------------------------------------------
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| 49 |
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| 50 | class ArgsFileWaiter(threading.Thread):
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| 51 | """A thread to wait for the appearance of the arguments file."""
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| 52 | def __init__(self, initializedCallback):
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| 53 | """Construct the thread."""
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| 54 | threading.Thread.__init__(self)
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| 55 | self.daemon = True
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| 56 |
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| 57 | self._initializedCallback = initializedCallback
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| 58 |
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| 59 | def run(self):
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| 60 | """Repeatedly check for the existence of the arguments file.
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| 61 |
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| 62 | If it is found, read it, extract the arguments and insert a job into
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| 63 | the GUI loop to perform the actual initialization of CEF."""
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| 64 | argsFilePath = getArgsFilePath()
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| 65 | print "Waiting for the arguments file '%s' to appear" % (argsFilePath,)
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| 66 |
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| 67 | while not os.path.exists(argsFilePath):
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| 68 | time.sleep(0.1)
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| 69 |
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| 70 | print "Got arguments, reading them."""
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| 71 |
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| 72 | with open(argsFilePath, "rt") as f:
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| 73 | args = f.read().split()
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| 74 |
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| 75 | gobject.idle_add(_initializeCEF, args, self._initializedCallback)
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| 76 |
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| [648] | 77 | #------------------------------------------------------------------------------
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| 78 |
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| [692] | 79 | SIMBRIEF_PROGRESS_SEARCHING_BROWSER = MavaSimbriefIntegrator.PROGRESS_SEARCHING_BROWSER
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| 80 | SIMBRIEF_PROGRESS_LOADING_FORM = MavaSimbriefIntegrator.PROGRESS_LOADING_FORM
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| 81 | SIMBRIEF_PROGRESS_FILLING_FORM = MavaSimbriefIntegrator.PROGRESS_FILLING_FORM
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| 82 | SIMBRIEF_PROGRESS_WAITING_LOGIN = MavaSimbriefIntegrator.PROGRESS_WAITING_LOGIN
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| 83 | SIMBRIEF_PROGRESS_LOGGING_IN = MavaSimbriefIntegrator.PROGRESS_LOGGING_IN
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| 84 | SIMBRIEF_PROGRESS_WAITING_RESULT = MavaSimbriefIntegrator.PROGRESS_WAITING_RESULT
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| 85 |
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| 86 | SIMBRIEF_PROGRESS_RETRIEVING_BRIEFING = MavaSimbriefIntegrator.PROGRESS_MAX + 1
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| 87 | SIMBRIEF_PROGRESS_DONE = 1000
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| 88 |
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| 89 | SIMBRIEF_RESULT_NONE = MavaSimbriefIntegrator.RESULT_NONE
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| 90 | SIMBRIEF_RESULT_OK = MavaSimbriefIntegrator.RESULT_OK
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| 91 | SIMBRIEF_RESULT_ERROR_OTHER = MavaSimbriefIntegrator.RESULT_ERROR_OTHER
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| 92 | SIMBRIEF_RESULT_ERROR_NO_FORM = MavaSimbriefIntegrator.RESULT_ERROR_NO_FORM
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| 93 | SIMBRIEF_RESULT_ERROR_NO_POPUP = MavaSimbriefIntegrator.RESULT_ERROR_NO_POPUP
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| 94 | SIMBRIEF_RESULT_ERROR_LOGIN_FAILED = MavaSimbriefIntegrator.RESULT_ERROR_LOGIN_FAILED
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| 95 |
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| 96 | #------------------------------------------------------------------------------
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| 97 |
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| [682] | 98 | class SeleniumHandler(threading.Thread):
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| 99 | """Thread to handle Selenium operations."""
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| 100 | def __init__(self, programDirectory):
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| 101 | """Construct the thread."""
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| 102 | threading.Thread.__init__(self)
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| 103 | self.daemon = False
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| 104 |
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| 105 | self._programDirectory = programDirectory
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| 106 |
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| 107 | self._commandsCondition = threading.Condition()
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| 108 | self._commands = []
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| 109 |
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| [685] | 110 | self._driver = None
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| 111 |
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| [682] | 112 | self._toQuit = False
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| 113 |
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| [685] | 114 | @property
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| 115 | def programDirectory(self):
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| 116 | """Get the program directory."""
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| 117 | return self._programDirectory
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| 118 |
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| [682] | 119 | def run(self):
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| 120 | """Create the Selenium driver and the perform any operations
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| 121 | requested."""
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| 122 | scriptName = "mlx_cef_caller"
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| 123 | if secondaryInstallation:
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| 124 | scriptName += "_secondary"
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| 125 | scriptName += ".bat" if os.name=="nt" else ".sh"
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| 126 |
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| 127 | scriptPath = os.path.join(self._programDirectory, scriptName)
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| 128 | print "Creating the Selenium driver to call script", scriptPath
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| 129 |
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| 130 | options = Options()
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| 131 | options.binary_location = scriptPath
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| [685] | 132 | driver = self._driver = webdriver.Chrome(chrome_options = options)
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| [682] | 133 | # try:
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| 134 | # except:
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| 135 | # traceback.print_exc()
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| 136 |
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| 137 | print "Created Selenium driver."
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| 138 | while not self._toQuit:
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| 139 | with self._commandsCondition:
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| 140 | while not self._commands:
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| 141 | self._commandsCondition.wait()
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| 142 |
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| 143 | command = self._commands[0]
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| 144 | del self._commands[0]
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| 145 |
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| 146 | command()
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| 147 |
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| 148 | driver.quit()
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| 149 |
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| [685] | 150 | def callSimBrief(self, plan, getCredentials, updateProgress,
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| 151 | htmlFilePath):
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| 152 | """Call SimBrief with the given plan."""
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| 153 | self._enqueue(lambda:
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| 154 | self._callSimBrief(plan, self._driver,
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| 155 | getCredentials, updateProgress,
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| 156 | htmlFilePath))
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| 157 |
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| [682] | 158 | def quit(self):
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| 159 | """Instruct the thread to quit and then join it."""
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| 160 | self._enqueue(self._quit)
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| 161 | self.join()
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| 162 |
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| 163 | def _enqueue(self, command):
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| 164 | """Enqueue the given command.
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| 165 |
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| 166 | command should be a function to be executed in the thread."""
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| 167 | with self._commandsCondition:
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| 168 | self._commands.append(command)
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| 169 | self._commandsCondition.notify()
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| 170 |
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| [685] | 171 | def _callSimBrief(self, plan, driver,
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| 172 | getCredentials, updateProgress, htmlFilePath):
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| 173 | """Perform the SimBrief call."""
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| 174 | integrator = MavaSimbriefIntegrator(plan = plan, driver = driver)
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| 175 | link = integrator.get_xml_link(getCredentials, updateProgress,
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| 176 | local_xml_debug = False,
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| 177 | local_html_debug = False)
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| 178 |
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| [692] | 179 | if link is not None:
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| 180 | updateProgress(SIMBRIEF_PROGRESS_RETRIEVING_BRIEFING,
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| 181 | SIMBRIEF_RESULT_NONE, None)
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| [685] | 182 |
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| [692] | 183 | try:
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| 184 | flight_info = integrator.get_results(link,
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| 185 | html_file_path =
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| 186 | htmlFilePath)
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| [685] | 187 |
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| [692] | 188 | updateProgress(SIMBRIEF_PROGRESS_DONE,
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| 189 | SIMBRIEF_RESULT_OK, flight_info)
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| 190 | except Exception, e:
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| 191 | print "Failed retrieving the briefing:", e
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| 192 | updateProgress(SIMBRIEF_PROGRESS_RETRIEVING_BRIEFING,
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| 193 | SIMBRIEF_RESULT_ERROR_OTHER, None)
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| [685] | 194 |
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| [682] | 195 | def _quit(self):
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| 196 | """Set the _toQuit member variable to indicate that the thread should
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| 197 | quit."""
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| 198 | self._toQuit = True
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| 199 |
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| 200 | #------------------------------------------------------------------------------
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| 201 |
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| 202 | def initialize(programDirectory, initializedCallback):
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| [648] | 203 | """Initialize the Chrome Embedded Framework."""
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| [682] | 204 | global _toQuit, _seleniumHandler
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| [648] | 205 | _toQuit = False
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| 206 |
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| 207 | gobject.threads_init()
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| 208 |
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| [682] | 209 | argsFilePath = getArgsFilePath()
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| 210 | try:
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| 211 | os.unlink(argsFilePath)
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| 212 | except:
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| 213 | pass
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| 214 |
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| 215 | _seleniumHandler = SeleniumHandler(programDirectory)
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| 216 | _seleniumHandler.start()
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| 217 |
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| 218 | ArgsFileWaiter(initializedCallback).start()
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| 219 |
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| 220 | #------------------------------------------------------------------------------
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| 221 |
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| 222 | def _initializeCEF(args, initializedCallback):
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| 223 | """Perform the actual initialization of CEF using the given arguments."""
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| 224 | print "Initializing CEF with args:", args
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| 225 |
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| [648] | 226 | settings = {
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| 227 | "debug": True, # cefpython debug messages in console and in log_file
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| 228 | "log_severity": cefpython.LOGSEVERITY_VERBOSE, # LOGSEVERITY_VERBOSE
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| 229 | "log_file": "", # Set to "" to disable
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| 230 | "release_dcheck_enabled": True, # Enable only when debugging
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| 231 | # This directories must be set on Linux
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| 232 | "locales_dir_path": os.path.join(cefpython.GetModuleDirectory(), "locales"),
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| 233 | "resources_dir_path": cefpython.GetModuleDirectory(),
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| 234 | "browser_subprocess_path": "%s/%s" % \
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| 235 | (cefpython.GetModuleDirectory(), "subprocess"),
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| 236 | }
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| 237 |
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| [682] | 238 | switches={}
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| 239 | for arg in args:
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| 240 | if arg.startswith("--"):
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| 241 | if arg != "--enable-logging":
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| 242 | assignIndex = arg.find("=")
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| 243 | if assignIndex<0:
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| 244 | switches[arg[2:]] = ""
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| 245 | else:
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| 246 | switches[arg[2:assignIndex]] = arg[assignIndex+1:]
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| 247 | else:
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| 248 | print "Unhandled switch", arg
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| 249 |
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| 250 | cefpython.Initialize(settings, switches)
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| [648] | 251 |
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| 252 | gobject.timeout_add(10, _handleTimeout)
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| 253 |
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| [682] | 254 | print "Initialized, executing callback..."
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| 255 | initializedCallback()
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| 256 |
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| [648] | 257 | #------------------------------------------------------------------------------
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| 258 |
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| 259 | def getContainer():
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| 260 | """Get a container object suitable for running a browser instance
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| 261 | within."""
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| 262 | if os.name=="nt":
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| 263 | container = gtk.DrawingArea()
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| 264 | container.set_property("can-focus", True)
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| 265 | container.connect("size-allocate", _handleSizeAllocate)
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| 266 | else:
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| 267 | container = gtk.VBox(True, 0)
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| 268 |
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| 269 | container.show()
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| 270 |
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| 271 | return container
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| 272 |
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| 273 | #------------------------------------------------------------------------------
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| 274 |
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| 275 | def startInContainer(container, url, browserSettings = {}):
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| 276 | """Start a browser instance in the given container with the given URL."""
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| 277 | if os.name=="nt":
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| 278 | windowID = container.get_window().handle
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| 279 | else:
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| 280 | m = re.search("GtkVBox at 0x(\w+)", str(container))
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| 281 | hexID = m.group(1)
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| 282 | windowID = int(hexID, 16)
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| 283 |
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| 284 | windowInfo = cefpython.WindowInfo()
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| 285 | windowInfo.SetAsChild(windowID)
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| 286 |
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| 287 | return cefpython.CreateBrowserSync(windowInfo,
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| 288 | browserSettings = browserSettings,
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| 289 | navigateUrl = url)
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| 290 |
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| 291 | #------------------------------------------------------------------------------
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| 292 |
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| [685] | 293 | class OffscreenRenderHandler(object):
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| 294 | def GetRootScreenRect(self, browser, rect):
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| 295 | #print "GetRootScreenRect"
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| 296 | rect += [0, 0, 800, 600]
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| 297 | return True
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| 298 |
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| 299 | def GetViewRect(self, browser, rect):
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| 300 | #print "GetViewRect"
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| 301 | rect += [0, 0, 800, 600]
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| 302 | return True
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| 303 |
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| 304 | def GetScreenPoint(self, browser, viewX, viewY, screenCoordinates):
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| 305 | #print "GetScreenPoint", viewX, viewY
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| 306 | rect += [viewX, viewY]
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| 307 | return True
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| 308 |
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| 309 | def GetScreenInfo(self, browser, screenInfo):
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| 310 | #print "GetScreenInfo"
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| 311 | pass
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| 312 |
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| 313 | def OnPopupShow(self, browser, show):
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| 314 | #print "OnPopupShow", show
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| 315 | pass
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| 316 |
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| 317 | def OnPopupSize(self, browser, rect):
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| 318 | #print "OnPopupSize", rect
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| 319 | pass
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| 320 |
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| 321 | def OnPaint(self, browser, paintElementType, dirtyRects, buffer, width, height):
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| 322 | #print "OnPaint", paintElementType, dirtyRects, buffer, width, height
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| 323 | pass
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| 324 |
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| 325 | def OnCursorChange(self, browser, cursor):
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| 326 | #print "OnCursorChange", cursor
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| 327 | pass
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| 328 |
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| 329 | def OnScrollOffsetChanged(self, browser):
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| 330 | #print "OnScrollOffsetChange"
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| 331 | pass
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| 332 |
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| 333 | def OnBeforePopup(self, browser, frame, targetURL, targetFrameName,
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| 334 | popupFeatures, windowInfo, client, browserSettings,
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| 335 | noJavascriptAccess):
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| 336 | wInfo = cefpython.WindowInfo()
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| 337 | wInfo.SetAsOffscreen(int(0))
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| 338 |
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| 339 | windowInfo.append(wInfo)
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| 340 |
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| 341 | return False
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| 342 |
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| 343 | #------------------------------------------------------------------------------
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| 344 |
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| 345 | def initializeSimBrief():
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| 346 | """Initialize the (hidden) browser window for SimBrief."""
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| 347 | windowInfo = cefpython.WindowInfo()
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| 348 | windowInfo.SetAsOffscreen(int(0))
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| 349 |
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| 350 | url = "file://" + os.path.join(_seleniumHandler.programDirectory,
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| 351 | "simbrief.html")
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| 352 | simBriefBrowser = cefpython.CreateBrowserSync(windowInfo,
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| 353 | browserSettings = {},
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| 354 | navigateUrl = url)
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| 355 | simBriefBrowser.SetClientHandler(OffscreenRenderHandler())
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| 356 |
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| 357 | simBriefBrowser.SetFocus(True)
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| 358 |
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| 359 | #------------------------------------------------------------------------------
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| 360 |
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| 361 | def callSimBrief(plan, getCredentials, updateProgress, htmlFilePath):
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| 362 | """Call SimBrief with the given plan."""
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| 363 | _seleniumHandler.callSimBrief(plan, getCredentials,
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| 364 | updateProgress, htmlFilePath)
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| 365 |
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| 366 | #------------------------------------------------------------------------------
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| 367 |
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| [648] | 368 | def finalize():
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| 369 | """Finalize the Chrome Embedded Framework."""
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| [682] | 370 | global _toQuit, _seleniumHandler
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| [648] | 371 | toQuit = True
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| [682] | 372 | _seleniumHandler.quit()
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| [648] | 373 | cefpython.Shutdown()
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| 374 |
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| 375 | #------------------------------------------------------------------------------
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| 376 |
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| 377 | def _handleTimeout():
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| 378 | """Handle the timeout by running the CEF message loop."""
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| 379 | if _toQuit:
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| 380 | return False
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| 381 | else:
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| 382 | cefpython.MessageLoopWork()
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| 383 | return True
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| 384 |
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| 385 | #------------------------------------------------------------------------------
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| 386 |
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| 387 | def _handleSizeAllocate(widget, sizeAlloc):
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| 388 | """Handle the size-allocate event."""
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| 389 | cefpython.WindowUtils.OnSize(widget.get_window().handle, 0, 0, 0)
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