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utils.pyx
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utils.pyx
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#
Copyright (c) 2012-2014 The CEF Python authors. All rights reserved.
#
License: New BSD License.
#
Website: http://code.google.com/p/cefpython/
include
"
cefpython.pyx
"
#
noinspection PyUnresolvedReferences
cimport cef_types
TID_UI
=
cef_types.TID_UI
TID_DB
=
cef_types.TID_DB
TID_FILE
=
cef_types.TID_FILE
TID_FILE_USER_BLOCKING
=
cef_types.TID_FILE_USER_BLOCKING
TID_PROCESS_LAUNCHER
=
cef_types.TID_PROCESS_LAUNCHER
TID_CACHE
=
cef_types.TID_CACHE
TID_IO
=
cef_types.TID_IO
TID_RENDERER
=
cef_types.TID_RENDERER
g_browserProcessThreads
=
[
TID_UI,
TID_DB,
TID_FILE,
TID_FILE_USER_BLOCKING,
TID_CACHE,
TID_IO,
]
cpdef py_bool IsString(
object
maybeString):
#
In Python 2.7 string types are: 1) str/bytes 2) unicode.
#
In Python 3 string types are: 1) bytes 2) str
if
type
(maybeString)
==
bytes
or
type
(maybeString)
==
str
\
or
(PY_MAJOR_VERSION
<
3
and
type
(maybeString)
==
unicode
):
return
True
return
False
cpdef py_bool IsThread(
int
threadID):
return
bool
(CefCurrentlyOn(
<
CefThreadId
>
threadID))
#
TODO: this function needs to accept unicode strings, use the
#
logic from wxpython.py/ExceptHook to handle printing
#
unicode strings and writing them to file (codecs.open).
#
This change is required to work with Cython 0.20.
cpdef
object
Debug(
str
msg):
if
not
g_debug:
return
msg
=
"
[CEF Python]
"
+
str
(msg)
print
(msg)
if
g_debugFile:
try
:
with
open
(g_debugFile,
"
a
"
)
as
file_:
file_.write(msg
+
"
\n
"
)
except
:
print
(
"
[CEF Python] WARNING: failed writing to debug file:
%s
"
%
(
g_debugFile))
cpdef
str
GetSystemError():
IF
UNAME_SYSNAME
==
"
Windows
"
:
cdef DWORD errorCode
=
GetLastError()
return
"
Error Code =
%d
"
%
errorCode
ELSE
:
return
"
"
cpdef
str
GetNavigateUrl(py_string url):
#
Encode local file paths so that CEF can load them correctly:
#
| some.html, some/some.html, D:\, /var, file://
if
re.search(
r
"
^
file:
"
, url, re.I)
or
\
re.search(
r
"
^
[
a-zA-Z
]:
"
, url)
or
\
not
re.search(
r
"
^
[
\w
-
]
+
:
"
, url):
#
Function pathname2url will complain if url starts with "file://".
#
CEF may also change local urls to "file:///C:/" - three slashes.
is_file_protocol
=
False
file_prefix
=
"
"
file_prefixes
=
[
"
file:///
"
,
"
file://
"
]
for
file_prefix
in
file_prefixes:
if
url.startswith(file_prefix):
is_file_protocol
=
True
#
Remove the file:// prefix
url
=
url[
len
(file_prefix):]
break
#
Need to encode chinese characters in local file paths,
#
otherwise CEF will try to encode them by itself. But it
#
will fail in doing so. CEF will return the following string:
#
>> %EF%BF%97%EF%BF%80%EF%BF%83%EF%BF%A6
#
But it should be:
#
>> %E6%A1%8C%E9%9D%A2
url
=
urllib_pathname2url(url)
if
is_file_protocol:
url
=
"
%s%s
"
%
(file_prefix, url)
#
If it is C:\ then colon was encoded. Decode it back.
url
=
re.sub(
r
"
^
(
[
a-zA-Z
]
)
%3A
"
,
r
"
\1
:
"
, url)
#
Allow hash when loading urls. The pathname2url function
#
replaced hashes with "%23" (Issue 114).
url
=
url.replace(
"
%23
"
,
"
#
"
)
return
str
(url)
cpdef
str
GetModuleDirectory():
import
re, os, platform
if
platform.system()
==
"
Linux
"
and
os.getenv(
"
CEFPYTHON3_PATH
"
):
#
cefpython3 package __init__.py sets CEFPYTHON3_PATH.
#
When cefpython3 is installed as debian package, this
#
env variable is the only way of getting valid path.
return
os.getenv(
"
CEFPYTHON3_PATH
"
)
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()
if
platform.system()
==
"
Windows
"
:
path
=
re.sub(
r
"
[
/
\\
]
+
"
, re.escape(os.sep), path)
path
=
re.sub(
r
"
[
/
\\
]
+
$
"
,
"
"
, path)
return
os.path.abspath(path)
cpdef py_bool IsFunctionOrMethod(
object
valueType):
if
(valueType
==
types.FunctionType
or
valueType
==
types.MethodType
or
valueType
==
types.BuiltinFunctionType
or
valueType
==
types.BuiltinMethodType):
return
True
return
False
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