[919] | 1 | from .common import *
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[648] | 2 |
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[682] | 3 | from mlx.util import secondaryInstallation
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| 4 |
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| 5 | from cefpython3 import cefpython
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| 6 |
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[648] | 7 | import platform
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| 8 | import json
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[682] | 9 | import time
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[648] | 10 | import os
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| 11 | import re
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[919] | 12 | import _thread
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[682] | 13 | import threading
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| 14 | import tempfile
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| 15 | import traceback
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[945] | 16 | import ctypes
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[919] | 17 | import urllib.request, urllib.error, urllib.parse
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[805] | 18 | from lxml import etree
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[919] | 19 | from io import StringIO
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[805] | 20 | import lxml.html
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[1096] | 21 | import shutil
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[648] | 22 |
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| 23 | #------------------------------------------------------------------------------
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| 24 |
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| 25 | ## @package mlx.gui.cef
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| 26 | #
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| 27 | # Some helper stuff related to the Chrome Embedded Framework
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| 28 |
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| 29 | #------------------------------------------------------------------------------
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| 30 |
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| 31 | # Indicate if we should quit
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| 32 | _toQuit = False
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| 33 |
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[805] | 34 | # The SimBrief handler
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| 35 | _simBriefHandler = None
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[682] | 36 |
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[1097] | 37 | # The cache directory
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| 38 | cacheDir = os.path.join(GLib.get_user_cache_dir(), "mlxcef")
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| 39 |
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[682] | 40 | #------------------------------------------------------------------------------
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| 41 |
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[805] | 42 | SIMBRIEF_PROGRESS_SEARCHING_BROWSER = 1
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| 43 | SIMBRIEF_PROGRESS_LOADING_FORM = 2
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| 44 | SIMBRIEF_PROGRESS_FILLING_FORM = 3
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| 45 | SIMBRIEF_PROGRESS_WAITING_LOGIN = 4
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| 46 | SIMBRIEF_PROGRESS_LOGGING_IN = 5
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| 47 | SIMBRIEF_PROGRESS_WAITING_RESULT = 6
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[682] | 48 |
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[805] | 49 | SIMBRIEF_PROGRESS_RETRIEVING_BRIEFING = 7
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| 50 | SIMBRIEF_PROGRESS_DONE = 1000
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[682] | 51 |
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[805] | 52 | SIMBRIEF_RESULT_NONE = 0
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| 53 | SIMBRIEF_RESULT_OK = 1
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| 54 | SIMBRIEF_RESULT_ERROR_OTHER = 2
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| 55 | SIMBRIEF_RESULT_ERROR_NO_FORM = 11
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| 56 | SIMBRIEF_RESULT_ERROR_NO_POPUP = 12
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| 57 | SIMBRIEF_RESULT_ERROR_LOGIN_FAILED = 13
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[682] | 58 |
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[648] | 59 | #------------------------------------------------------------------------------
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| 60 |
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[805] | 61 | class SimBriefHandler(object):
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| 62 | """An object to store the state of a SimBrief query."""
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[1084] | 63 | _formURLBase = MAVA_BASE_URL + "/simbrief_form.php"
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| 64 |
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| 65 | _resultURLBase = MAVA_BASE_URL + "/simbrief_briefing.php"
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| 66 |
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| 67 | @staticmethod
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| 68 | def getFormURL(plan):
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| 69 | """Get the form URL for the given plan."""
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| 70 | return SimBriefHandler._formURLBase + "?" + \
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| 71 | urllib.parse.urlencode(plan)
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[692] | 72 |
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[805] | 73 | _querySettings = {
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| 74 | 'navlog': True,
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| 75 | 'etops': True,
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| 76 | 'stepclimbs': True,
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| 77 | 'tlr': True,
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| 78 | 'notams': True,
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| 79 | 'firnot': True,
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| 80 | 'maps': 'Simple',
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| 81 | };
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[682] | 82 |
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| 83 |
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[805] | 84 | def __init__(self):
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| 85 | """Construct the handler."""
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| 86 | self._browser = None
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| 87 | self._plan = None
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| 88 | self._getCredentials = None
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| 89 | self._getCredentialsCount = 0
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| 90 | self._updateProgressFn = None
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| 91 | self._htmlFilePath = None
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| 92 | self._lastProgress = SIMBRIEF_PROGRESS_SEARCHING_BROWSER
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| 93 | self._timeoutID = None
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[682] | 94 |
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[805] | 95 | def initialize(self):
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[695] | 96 | """Create and initialize the browser used for Simbrief."""
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| 97 | windowInfo = cefpython.WindowInfo()
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| 98 | windowInfo.SetAsOffscreen(int(0))
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| 99 |
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[805] | 100 | self._browser = \
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[1084] | 101 | cefpython.CreateBrowserSync(windowInfo, browserSettings = {})
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[805] | 102 | self._browser.SetClientHandler(OffscreenRenderHandler())
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| 103 | self._browser.SetFocus(True)
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| 104 | self._browser.SetClientCallback("OnLoadEnd", self._onLoadEnd)
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[1083] | 105 | self._browser.SetClientCallback("OnLoadError", self._onLoadError)
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| 106 | self._browser.SetClientCallback("OnBeforeBrowse",
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| 107 | lambda browser, frame, request,
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| 108 | user_gesture, is_redirect: False)
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[805] | 109 |
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| 110 | def call(self, plan, getCredentials, updateProgress, htmlFilePath):
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[685] | 111 | """Call SimBrief with the given plan."""
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[995] | 112 | self._timeoutID = GObject.timeout_add(120*1000, self._timedOut)
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[805] | 113 |
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| 114 | self._plan = plan
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| 115 | self._getCredentials = getCredentials
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| 116 | self._getCredentialsCount = 0
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| 117 | self._updateProgressFn = updateProgress
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| 118 | self._htmlFilePath = htmlFilePath
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| 119 |
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[1084] | 120 | self._browser.LoadUrl(SimBriefHandler.getFormURL(plan))
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[805] | 121 | self._updateProgress(SIMBRIEF_PROGRESS_LOADING_FORM,
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| 122 | SIMBRIEF_RESULT_NONE, None)
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| 123 |
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[1083] | 124 | def finalize(self):
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| 125 | """Close the browser and release it."""
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[1099] | 126 | if self._browser is not None:
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| 127 | self._browser.CloseBrowser(True)
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| 128 | self._browser = None
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[1083] | 129 |
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[943] | 130 | def _onLoadEnd(self, browser, frame, http_code):
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[805] | 131 | """Called when a page has been loaded in the SimBrief browser."""
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| 132 | url = frame.GetUrl()
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[943] | 133 | print("gui.cef.SimBriefHandler._onLoadEnd", http_code, url)
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| 134 | if http_code>=300:
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[805] | 135 | self._updateProgress(self._lastProgress,
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| 136 | SIMBRIEF_RESULT_ERROR_OTHER, None)
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[1084] | 137 | elif url.startswith(SimBriefHandler._formURLBase):
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| 138 | self._updateProgress(SIMBRIEF_PROGRESS_WAITING_LOGIN,
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[805] | 139 | SIMBRIEF_RESULT_NONE, None)
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[1084] | 140 | elif url.startswith("https://www.simbrief.com/system/login.api.sso.php"):
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| 141 | js = "document.getElementsByClassName(\"login_option navigraph\")[0].click();"
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[805] | 142 | frame.ExecuteJavascript(js)
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[1084] | 143 | elif url.startswith("https://identity.api.navigraph.com/login?"):
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[805] | 144 | (user, password) = self._getCredentials(self._getCredentialsCount)
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| 145 | if user is None or password is None:
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| 146 | self._updateProgress(SIMBRIEF_PROGRESS_WAITING_LOGIN,
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| 147 | SIMBRIEF_RESULT_ERROR_LOGIN_FAILED, None)
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| 148 | return
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[682] | 149 |
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[805] | 150 | self._getCredentialsCount += 1
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[1084] | 151 |
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| 152 | js = "form=document.getElementsByName(\"form\")[0];"
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| 153 | js +="form.username.value=\"" + user + "\";"
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| 154 | js +="form.password.value=\"" + password + "\";"
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| 155 | js +="form.submit();"
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[805] | 156 | frame.ExecuteJavascript(js)
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[1084] | 157 | elif url.startswith("https://www.simbrief.com/ofp/ofp.loader.api.php"):
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[805] | 158 | self._updateProgress(SIMBRIEF_PROGRESS_WAITING_RESULT,
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| 159 | SIMBRIEF_RESULT_NONE, None)
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[1084] | 160 | elif url.startswith(SimBriefHandler._resultURLBase):
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[805] | 161 | self._updateProgress(SIMBRIEF_PROGRESS_RETRIEVING_BRIEFING,
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[1084] | 162 | SIMBRIEF_RESULT_OK, None)
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[805] | 163 |
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[1083] | 164 | def _onLoadError(self, browser, frame, error_code, error_text_out,
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| 165 | failed_url):
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| 166 | """Called when loading of an URL fails."""
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| 167 | print("gui.cef.SimBriefHandler._onLoadError", browser, frame, error_code, error_text_out, failed_url)
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[1095] | 168 | if error_code==-3 and \
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| 169 | failed_url.startswith("https://identity.api.navigraph.com/connect/authorize"):
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| 170 | self._browser.LoadUrl(SimBriefHandler.getFormURL(self._plan))
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| 171 | self._updateProgress(SIMBRIEF_PROGRESS_LOADING_FORM,
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| 172 | SIMBRIEF_RESULT_NONE, None)
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| 173 | else:
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| 174 | self._updateProgress(self._lastProgress,
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| 175 | SIMBRIEF_RESULT_ERROR_OTHER, None)
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[805] | 176 |
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| 177 | def _updateProgress(self, progress, results, flightInfo):
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| 178 | """Update the progress."""
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| 179 | self._lastProgress = progress
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| 180 | if results!=SIMBRIEF_RESULT_NONE:
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[944] | 181 | if self._timeoutID is not None:
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[995] | 182 | GObject.source_remove(self._timeoutID)
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[805] | 183 | self._plan = None
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| 184 |
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[944] | 185 | if self._updateProgressFn is not None:
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| 186 | self._updateProgressFn(progress, results, flightInfo)
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[805] | 187 |
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| 188 | def _timedOut(self):
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| 189 | """Called when the timeout occurs."""
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| 190 | if self._lastProgress==SIMBRIEF_PROGRESS_LOADING_FORM:
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| 191 | result = SIMBRIEF_RESULT_ERROR_NO_FORM
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| 192 | elif self._lastProgress==SIMBRIEF_PROGRESS_WAITING_LOGIN:
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| 193 | result = SIMBRIEF_RESULT_ERROR_NO_POPUP
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| 194 | else:
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| 195 | result = SIMBRIEF_RESULT_ERROR_OTHER
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[685] | 196 |
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[805] | 197 | self._updateProgress(self._lastProgress, result, None)
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| 198 |
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| 199 | return False
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[685] | 200 |
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[682] | 201 | #------------------------------------------------------------------------------
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| 202 |
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[805] | 203 | def initialize(initializedCallback):
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[648] | 204 | """Initialize the Chrome Embedded Framework."""
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[805] | 205 | global _toQuit, _simBriefHandler
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[648] | 206 | _toQuit = False
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| 207 |
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[995] | 208 | GObject.threads_init()
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[648] | 209 |
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[805] | 210 | _simBriefHandler = SimBriefHandler()
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[1111] | 211 | GObject.timeout_add(100, _initializeCEF, [], initializedCallback)
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[682] | 212 |
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| 213 | #------------------------------------------------------------------------------
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| 214 |
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| 215 | def _initializeCEF(args, initializedCallback):
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| 216 | """Perform the actual initialization of CEF using the given arguments."""
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[919] | 217 | print("Initializing CEF with args:", args)
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[682] | 218 |
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[648] | 219 | settings = {
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| 220 | "debug": True, # cefpython debug messages in console and in log_file
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| 221 | "log_severity": cefpython.LOGSEVERITY_VERBOSE, # LOGSEVERITY_VERBOSE
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| 222 | "log_file": "", # Set to "" to disable
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| 223 | "release_dcheck_enabled": True, # Enable only when debugging
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| 224 | # This directories must be set on Linux
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| 225 | "locales_dir_path": os.path.join(cefpython.GetModuleDirectory(), "locales"),
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| 226 | "resources_dir_path": cefpython.GetModuleDirectory(),
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| 227 | "browser_subprocess_path": "%s/%s" % \
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| 228 | (cefpython.GetModuleDirectory(), "subprocess"),
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[1083] | 229 | "windowless_rendering_enabled": True,
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[1097] | 230 | "cache_path": cacheDir,
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| 231 | "persist_session_cookies": True,
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| 232 | "persist_user_preferences": True
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[648] | 233 | }
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| 234 |
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[682] | 235 | switches={}
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| 236 | for arg in args:
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| 237 | if arg.startswith("--"):
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| 238 | if arg != "--enable-logging":
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| 239 | assignIndex = arg.find("=")
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| 240 | if assignIndex<0:
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| 241 | switches[arg[2:]] = ""
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| 242 | else:
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| 243 | switches[arg[2:assignIndex]] = arg[assignIndex+1:]
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| 244 | else:
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[919] | 245 | print("Unhandled switch", arg)
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[682] | 246 |
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| 247 | cefpython.Initialize(settings, switches)
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[648] | 248 |
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[995] | 249 | GObject.timeout_add(10, _handleTimeout)
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[648] | 250 |
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[919] | 251 | print("Initialized, executing callback...")
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[682] | 252 | initializedCallback()
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[1111] | 253 |
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| 254 | if os.name != "nt":
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| 255 | Gtk.main_quit()
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| 256 |
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[1091] | 257 | return False
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[682] | 258 |
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[648] | 259 | #------------------------------------------------------------------------------
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| 260 |
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[1108] | 261 | def messageLoop():
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| 262 | """Run the CEF message loop"""
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| 263 | cefpython.MessageLoop()
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| 264 |
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| 265 | #------------------------------------------------------------------------------
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| 266 |
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[648] | 267 | def getContainer():
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| 268 | """Get a container object suitable for running a browser instance
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| 269 | within."""
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[1083] | 270 | container = Gtk.DrawingArea()
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| 271 | container.set_property("can-focus", True)
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| 272 | container.connect("size-allocate", _handleSizeAllocate)
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[648] | 273 | container.show()
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| 274 |
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| 275 | return container
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| 276 |
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| 277 | #------------------------------------------------------------------------------
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| 278 |
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| 279 | def startInContainer(container, url, browserSettings = {}):
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| 280 | """Start a browser instance in the given container with the given URL."""
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| 281 | if os.name=="nt":
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[997] | 282 | Gdk.threads_enter()
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[945] | 283 | ctypes.pythonapi.PyCapsule_GetPointer.restype = ctypes.c_void_p
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| 284 | ctypes.pythonapi.PyCapsule_GetPointer.argtypes = \
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| 285 | [ctypes.py_object]
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| 286 | gpointer = ctypes.pythonapi.PyCapsule_GetPointer(
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| 287 | container.get_property("window").__gpointer__, None)
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| 288 | libgdk = ctypes.CDLL("libgdk-3-0.dll")
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| 289 | windowID = libgdk.gdk_win32_window_get_handle(gpointer)
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| 290 | container.windowID = windowID
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[997] | 291 | Gdk.threads_leave()
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[1083] | 292 | windowRect = [0, 0, 1, 1]
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[648] | 293 | else:
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[924] | 294 | container.set_visual(container.get_screen().lookup_visual(0x21))
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| 295 | windowID = container.get_window().get_xid()
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[1083] | 296 | windowRect = None
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[648] | 297 |
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| 298 | windowInfo = cefpython.WindowInfo()
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[805] | 299 | if windowID is not None:
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[1083] | 300 | windowInfo.SetAsChild(windowID, windowRect = windowRect)
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[648] | 301 |
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[1083] | 302 | browser = cefpython.CreateBrowserSync(windowInfo,
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| 303 | browserSettings = browserSettings,
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| 304 | navigateUrl = url)
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| 305 | container.browser = browser
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| 306 |
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| 307 | return browser
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[648] | 308 |
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| 309 | #------------------------------------------------------------------------------
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| 310 |
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[685] | 311 | class OffscreenRenderHandler(object):
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[943] | 312 | def GetRootScreenRect(self, browser, rect_out):
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[685] | 313 | #print "GetRootScreenRect"
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[1083] | 314 | rect_out += [0, 0, 1920, 1080]
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[685] | 315 | return True
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| 316 |
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[943] | 317 | def GetViewRect(self, browser, rect_out):
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[685] | 318 | #print "GetViewRect"
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[1083] | 319 | rect_out += [0, 40, 1920, 1040]
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[685] | 320 | return True
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| 321 |
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| 322 | def GetScreenPoint(self, browser, viewX, viewY, screenCoordinates):
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| 323 | #print "GetScreenPoint", viewX, viewY
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| 324 | rect += [viewX, viewY]
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| 325 | return True
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| 326 |
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| 327 | def GetScreenInfo(self, browser, screenInfo):
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| 328 | #print "GetScreenInfo"
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| 329 | pass
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| 330 |
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| 331 | def OnPopupShow(self, browser, show):
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| 332 | #print "OnPopupShow", show
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| 333 | pass
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| 334 |
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| 335 | def OnPopupSize(self, browser, rect):
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| 336 | #print "OnPopupSize", rect
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| 337 | pass
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| 338 |
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[943] | 339 | def OnPaint(self, browser, element_type, dirty_rects, paint_buffer, width, height):
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[685] | 340 | #print "OnPaint", paintElementType, dirtyRects, buffer, width, height
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| 341 | pass
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| 342 |
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| 343 | def OnCursorChange(self, browser, cursor):
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| 344 | #print "OnCursorChange", cursor
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| 345 | pass
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| 346 |
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| 347 | def OnScrollOffsetChanged(self, browser):
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| 348 | #print "OnScrollOffsetChange"
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| 349 | pass
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| 350 |
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[1083] | 351 | def OnBeforePopup(self, browser, frame, target_url, target_frame_name,
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| 352 | target_disposition, user_gesture,
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| 353 | popup_features, window_info_out, client,
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| 354 | browser_settings_out, no_javascript_access_out,
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| 355 | **kwargs):
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[685] | 356 | wInfo = cefpython.WindowInfo()
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| 357 | wInfo.SetAsOffscreen(int(0))
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| 358 |
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[1083] | 359 | window_info_out.append(wInfo)
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[685] | 360 |
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| 361 | return False
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| 362 |
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| 363 | #------------------------------------------------------------------------------
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| 364 |
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| 365 | def initializeSimBrief():
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| 366 | """Initialize the (hidden) browser window for SimBrief."""
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[805] | 367 | _simBriefHandler.initialize()
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[685] | 368 |
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| 369 | #------------------------------------------------------------------------------
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| 370 |
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| 371 | def callSimBrief(plan, getCredentials, updateProgress, htmlFilePath):
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[805] | 372 | """Call SimBrief with the given plan.
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| 373 |
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| 374 | The callbacks will be called in the main GUI thread."""
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| 375 | _simBriefHandler.call(plan, getCredentials, updateProgress, htmlFilePath)
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[685] | 376 |
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| 377 | #------------------------------------------------------------------------------
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| 378 |
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[1097] | 379 | def finalizeSimBrief():
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| 380 | """Finallize the (hidden) browser window for SimBrief."""
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| 381 | if _simBriefHandler is not None:
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| 382 | _simBriefHandler.finalize()
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| 383 |
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| 384 | #------------------------------------------------------------------------------
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| 385 |
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[1108] | 386 | def quitMessageLoop():
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| 387 | """Quit the CEF message loop"""
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| 388 | cefpython.QuitMessageLoop()
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| 389 |
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| 390 | #------------------------------------------------------------------------------
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| 391 |
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[648] | 392 | def finalize():
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| 393 | """Finalize the Chrome Embedded Framework."""
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[805] | 394 | global _toQuit
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| 395 | _toQuit = True
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[1083] | 396 |
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[1097] | 397 | if os.name!="nt":
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| 398 | cefpython.Shutdown()
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| 399 |
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| 400 | #------------------------------------------------------------------------------
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[1083] | 401 |
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[1097] | 402 | def clearCache():
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| 403 | """Clear the CEF cache directory."""
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| 404 | try:
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| 405 | shutil.rmtree(cacheDir)
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| 406 | print("gui.cef.clearCache: the cache directory is removed")
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| 407 | except Exception as e:
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| 408 | print("gui.cef.clearCache: cache directory removal failed:", e)
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[648] | 409 |
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| 410 | #------------------------------------------------------------------------------
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| 411 |
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| 412 | def _handleTimeout():
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| 413 | """Handle the timeout by running the CEF message loop."""
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| 414 | if _toQuit:
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| 415 | return False
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| 416 | else:
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| 417 | cefpython.MessageLoopWork()
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| 418 | return True
|
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| 419 |
|
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| 420 | #------------------------------------------------------------------------------
|
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| 421 |
|
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| 422 | def _handleSizeAllocate(widget, sizeAlloc):
|
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[945] | 423 | """Handle the size-allocate event on Windows."""
|
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[1083] | 424 | if os.name=="nt":
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| 425 | if widget is not None and hasattr(widget, "windowID"):
|
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| 426 | cefpython.WindowUtils.OnSize(widget.windowID, 0, 0, 0)
|
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| 427 | else:
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| 428 | if widget is not None and hasattr(widget, "browser") and \
|
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| 429 | widget.browser is not None:
|
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| 430 | widget.browser.SetBounds(sizeAlloc.x, sizeAlloc.y,
|
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| 431 | sizeAlloc.width, sizeAlloc.height)
|
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