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# Simple CEF Python application,

# for more advanced features see "cefadvanced.py"

import platform

if platform.architecture()[0] != "32bit":

raise Exception("Only 32bit architecture is supported")

import os, sys

libcef_dll = os.path.join(os.path.dirname(os.path.abspath(__file__)),

'libcef.dll')

if os.path.exists(libcef_dll):

# Import the local module.

if 0x02070000 <= sys.hexversion < 0x03000000:

import cefpython_py27 as cefpython

elif 0x03000000 <= sys.hexversion < 0x04000000:

import cefpython_py32 as cefpython

else:

raise Exception("Unsupported python version: %s" % sys.version)

else:

# Import the package.

from cefpython1 import cefpython

import cefwindow

import win32con

import win32gui

def GetApplicationPath(file=None):

import re, os

# If file is None return current directory without trailing slash.

if file is None:

file = ""

# Only when relative path.

if not file.startswith("/") and not file.startswith("\\") and (

not re.search(r"^[\w-]+:", file)):

if hasattr(sys, "frozen"):

path = os.path.dirname(sys.executable)

elif "__file__" in globals():

path = os.path.dirname(os.path.realpath(__file__))

else:

path = os.getcwd()

path = path + os.sep + file

path = re.sub(r"[/\\]+", re.escape(os.sep), path)

path = re.sub(r"[/\\]+$", "", path)

return path

return str(file)

def ExceptHook(excType, excValue, traceObject):

import traceback, os, time, codecs

# This hook does the following: in case of exception write it to

# the "error.log" file, display it to the console, shutdown CEF

# and exit application immediately by ignoring "finally" (_exit()).

errorMsg = "\n".join(traceback.format_exception(excType, excValue,

traceObject))

errorFile = GetApplicationPath("error.log")

try:

appEncoding = cefpython.g_applicationSettings["string_encoding"]

except:

appEncoding = "utf-8"

if type(errorMsg) == bytes:

errorMsg = errorMsg.decode(encoding=appEncoding, errors="replace")

try:

with codecs.open(errorFile, mode="a", encoding=appEncoding) as fp:

fp.write("\n[%s] %s\n" % (

time.strftime("%Y-%m-%d %H:%M:%S"), errorMsg))

except:

print("cefpython: WARNING: failed writing to error file: %s" % (

errorFile))

# Convert error message to ascii before printing, otherwise

# you may get error like this:

# | UnicodeEncodeError: 'charmap' codec can't encode characters

errorMsg = errorMsg.encode("ascii", errors="replace")

errorMsg = errorMsg.decode("ascii", errors="replace")

print("\n"+errorMsg+"\n")

cefpython.QuitMessageLoop()

cefpython.Shutdown()

os._exit(1)

def CefSimple():

sys.excepthook = ExceptHook

cefpython.g_debug = True

cefpython.Initialize()

wndproc = {

win32con.WM_CLOSE: CloseWindow,

win32con.WM_DESTROY: QuitApplication,

win32con.WM_SIZE: cefpython.WindowUtils.OnSize,

win32con.WM_SETFOCUS: cefpython.WindowUtils.OnSetFocus,

win32con.WM_ERASEBKGND: cefpython.WindowUtils.OnEraseBackground }

windowHandle = cefwindow.CreateWindow(

title="CefSimple", className="cefsimple", width=800, height=600,

icon="icon.ico", windowProc=wndproc)

windowInfo = cefpython.WindowInfo()

windowInfo.SetAsChild(windowHandle)

browser = cefpython.CreateBrowserSync(

windowInfo, browserSettings={},

navigateUrl=GetApplicationPath("cefsimple.html"))

cefpython.MessageLoop()

cefpython.Shutdown()

def CloseWindow(windowHandle, message, wparam, lparam):

browser = cefpython.GetBrowserByWindowHandle(windowHandle)

browser.CloseBrowser()

return win32gui.DefWindowProc(windowHandle, message, wparam, lparam)

def QuitApplication(windowHandle, message, wparam, lparam):

win32gui.PostQuitMessage(0)

return 0

if __name__ == "__main__":

CefSimple()