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# License: New BSD License.

# Website: http://code.google.com/p/cefpython/

import win32gui

import win32con

import win32api

import time

import math

import os

import sys

import re

if sys.version_info.major == 2:

from urllib import pathname2url as urllib_pathname2url

else:

from urllib.request import pathname2url as urllib_pathname2url

g_debug = False

g_windows = {} # windowID(int): className

g_registeredClasses = {}

def Debug(msg):

if not g_debug:

return

msg = "cefwindow: "+str(msg)

print(msg)

with open(GetRealPath("debug.log"), "a") as file:

file.write(msg+"\n")

def GetRealPath(file=None, encodeURL=False):

# This function is defined in 2 files: cefpython.pyx and cefwindow.py, if you make changes edit both files.

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

# encodeURL param - will call urllib.pathname2url(), only when file is empty (current dir)

# or is relative path ("test.html", "some/test.html"), we need to encode it before passing

# to CreateBrowser(), otherwise it is encoded by CEF internally and becomes (chinese characters):

# >> %EF%BF%97%EF%BF%80%EF%BF%83%EF%BF%A6

# but should be:

# >> %E6%A1%8C%E9%9D%A2

if file is None: file = ""

if file.find("/") != 0 and file.find("\\") != 0 and not re.search(r"^[a-zA-Z]+:[/\\]?", file):

# Execute this block only when relative path ("test.html", "some\test.html") or file is empty (current dir).

# 1. find != 0 >> not starting with / or \ (/ - linux absolute path, \ - just to be sure)

# 2. not re.search >> not (D:\\ or D:/ or D: or http:// or ftp:// or file://),

# "D:" is also valid absolute path ("D:cefpython" in chrome becomes "file:///D:/cefpython/")

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) # directory without trailing slash.

if encodeURL:

return urllib_pathname2url(path)

else:

return path

return file

def CreateWindow(title, className, width, height, xpos=None, ypos=None, icon=None, windowProc=None):

"""

for key in g_windows:

if g_windows[key] == className:

raise Exception("There was already created a window with that className: %s."

"Each created window must have an unique className." % className)

"""

if not windowProc:

windowProc = {win32con.WM_CLOSE: WM_CLOSE}

bigIcon = ""

smallIcon = ""

if icon:

icon = GetRealPath(icon)

# Load small and big icon.

# WNDCLASSEX (along with hIconSm) is not supported by pywin32,

# we need to use WM_SETICON message after window creation.

# http://stackoverflow.com/questions/2234988/how-to-set-hicon-on-a-window-ico-with-multiple-sizes

# http://blog.barthe.ph/2009/07/17/wmseticon/

bigX = win32api.GetSystemMetrics(win32con.SM_CXICON)

bigY = win32api.GetSystemMetrics(win32con.SM_CYICON)

bigIcon = win32gui.LoadImage(0, icon, win32con.IMAGE_ICON, bigX, bigY, win32con.LR_LOADFROMFILE)

smallX = win32api.GetSystemMetrics(win32con.SM_CXSMICON)

smallY = win32api.GetSystemMetrics(win32con.SM_CYSMICON)

smallIcon = win32gui.LoadImage(0, icon, win32con.IMAGE_ICON, smallX, smallY, win32con.LR_LOADFROMFILE)

wndclass = win32gui.WNDCLASS()

wndclass.hInstance = win32api.GetModuleHandle(None)

wndclass.lpszClassName = className

wndclass.style = win32con.CS_VREDRAW | win32con.CS_HREDRAW

# win32con.CS_GLOBALCLASS

wndclass.hbrBackground = win32con.COLOR_WINDOW

wndclass.hCursor = win32gui.LoadCursor(0, win32con.IDC_ARROW)

wndclass.lpfnWndProc = windowProc

#noinspection PyUnusedLocal

global g_registeredClasses

if not className in g_registeredClasses:

g_registeredClasses[className] = True

atomclass = win32gui.RegisterClass(wndclass)

Debug("win32gui.RegisterClass(%s)" % className)

if xpos is None or ypos is None:

# Center window on the screen.

Debug("Centering window on the screen.")

screenx = win32api.GetSystemMetrics(win32con.SM_CXSCREEN)

screeny = win32api.GetSystemMetrics(win32con.SM_CYSCREEN)

xpos = int(math.floor((screenx - width) / 2))

ypos = int(math.floor((screeny - height) / 2))

if xpos < 0: xpos = 0

if ypos < 0: ypos = 0

windowID = win32gui.CreateWindow(className, title,

win32con.WS_OVERLAPPEDWINDOW | win32con.WS_CLIPCHILDREN | win32con.WS_VISIBLE,

xpos, ypos, width, height, # xpos, ypos, width, height

0, 0, wndclass.hInstance, None)

g_windows[windowID] = className

if icon:

if bigIcon:

win32api.SendMessage(windowID, win32con.WM_SETICON, win32con.ICON_BIG, bigIcon)

if smallIcon:

win32api.SendMessage(windowID, win32con.WM_SETICON, win32con.ICON_SMALL, smallIcon)

Debug("windowID = %s" % windowID)

return windowID

# Memory error when calling win32gui.DestroyWindow()

# after we called cefpython.CloseBrowser()

def DestroyWindow(windowID):

win32gui.DestroyWindow(windowID)

#className = GetWindowClassName(windowID)

#win32gui.UnregisterClass(className, None)

#del g_windows[windowID] # Let window with this className be created again.

def GetWindowClassName(windowID):

for key in g_windows:

if key == windowID:

return g_windows[key]

def MoveWindow(windowID, xpos=None, ypos=None, width=None, height=None, center=None):

(left, top, right, bottom) = win32gui.GetWindowRect(windowID)

if xpos is None and ypos is None:

xpos = left

ypos = top

if width is None and height is None:

width = right - left

height = bottom - top

# Case: only ypos provided

if xpos is None and ypos is not None:

xpos = left

if ypos is None and xpos is not None:

ypos = top

# Case: only height provided

if not width:

width = right - left

if not height:

height = bottom - top

if center:

screenx = win32api.GetSystemMetrics(win32con.SM_CXSCREEN)

screeny = win32api.GetSystemMetrics(win32con.SM_CYSCREEN)

xpos = int(math.floor((screenx - width) / 2))

ypos = int(math.floor((screeny - height) / 2))

if xpos < 0: xpos = 0

if ypos < 0: ypos = 0

win32gui.MoveWindow(windowID, xpos, ypos, width, height, 1)

#noinspection PyUnusedLocal

def WM_CLOSE(windowID, msg, wparam, lparam):

DestroyWindow(windowID)

win32gui.PostQuitMessage(0)

def GetLastError():

code = win32api.GetLastError()

return "(%d) %s" % (code, win32api.FormatMessage(code))

#noinspection PyUnusedLocal

def MessageLoop(className):

while not win32gui.PumpWaitingMessages():

time.sleep(0.001)

if __name__ == "__main__":

g_debug = True

hwnd = CreateWindow("Test window", "testwindow", 800, 600)

MessageLoop("testwindow")

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