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string_visitor.pyx
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75 lines (63 loc) · 2.86 KB
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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"
import weakref
# -----------------------------------------------------------------------------
# PyStringVisitor
# -----------------------------------------------------------------------------
cdef object g_userStringVisitors = weakref.WeakValueDictionary()
cdef int g_userStringVisitorMaxId = 0
cdef int StoreUserStringVisitor(object userStringVisitor) except *:
global g_userStringVisitorMaxId
global g_userStringVisitors
g_userStringVisitorMaxId += 1
g_userStringVisitors[g_userStringVisitorMaxId] = userStringVisitor
return g_userStringVisitorMaxId
cdef PyStringVisitor GetUserStringVisitor(int stringVisitorId):
global g_userStringVisitors
cdef object userStringVisitor
cdef PyStringVisitor pyStringVisitor
if stringVisitorId in g_userStringVisitors:
userStringVisitor = g_userStringVisitors[stringVisitorId]
pyStringVisitor = PyStringVisitor(userStringVisitor)
return pyStringVisitor
cdef class PyStringVisitor:
cdef object userStringVisitor
def __init__(self, object userStringVisitor):
self.userStringVisitor = userStringVisitor
cdef object GetCallback(self, str funcName):
if self.userStringVisitor and (
hasattr(self.userStringVisitor, funcName) and (
callable(getattr(self.userStringVisitor, funcName)))):
return getattr(self.userStringVisitor, funcName)
# -----------------------------------------------------------------------------
# C++ StringVisitor
# -----------------------------------------------------------------------------
cdef CefRefPtr[CefStringVisitor] CreateStringVisitor(
object userStringVisitor) except *:
if not userStringVisitor:
raise Exception("userStringVisitor object missing")
if not hasattr(userStringVisitor, "Visit"):
raise Exception("userStringVisitor object is missing Visit() method")
cdef int stringVisitorId = StoreUserStringVisitor(userStringVisitor)
cdef CefRefPtr[CefStringVisitor] cefStringVisitor = (
<CefRefPtr[CefStringVisitor]?>new StringVisitor(stringVisitorId))
return cefStringVisitor
cdef public void StringVisitor_Visit(
int stringVisitorId,
const CefString& string
) except * with gil:
cdef str pyString
cdef PyStringVisitor userStringVisitor
cdef object callback
try:
pyString = CefToPyString(string)
userStringVisitor = GetUserStringVisitor(stringVisitorId)
if userStringVisitor:
callback = userStringVisitor.GetCallback("Visit")
if callback:
callback(value=pyString)
except:
(exc_type, exc_value, exc_trace) = sys.exc_info()
sys.excepthook(exc_type, exc_value, exc_trace)