forked from cztomczak/cefpython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathjavascript_bindings.pyx
More file actions
164 lines (143 loc) · 5.95 KB
/
javascript_bindings.pyx
File metadata and controls
164 lines (143 loc) · 5.95 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
# Copyright (c) 2012 CEF Python, see the Authors file.
# All rights reserved. Licensed under BSD 3-clause license.
# Project website: https://github.com/cztomczak/cefpython
include "cefpython.pyx"
cdef class JavascriptBindings:
# By default binding only to top frame.
cdef public py_bool bindToFrames
cdef public py_bool bindToPopups
cdef public dict functions
cdef public dict properties
cdef public dict objects
def __init__(self, bindToFrames=False, bindToPopups=False):
self.functions = {}
self.properties = {}
self.objects = {}
self.bindToFrames = bool(bindToFrames)
self.bindToPopups = bool(bindToPopups)
cpdef py_bool GetBindToFrames(self):
return bool(self.bindToFrames)
cpdef py_bool GetBindToPopups(self):
return bool(self.bindToPopups)
cpdef py_void SetFunction(self, py_string name, object func):
self.SetProperty(name, func)
cpdef py_void SetObject(self, py_string name, object obj):
if not hasattr(obj, "__class__"):
raise Exception("JavascriptBindings.SetObject() failed: name=%s, "
"__class__ attribute missing, this is not an object" % name)
cdef dict methods = {}
cdef py_string key
cdef object method
cdef object predicate = inspect.ismethod
if isinstance(obj, (PyBrowser, PyFrame)):
predicate = inspect.isbuiltin
for value in inspect.getmembers(obj, predicate=predicate):
key = value[0]
method = value[1]
methods[key] = method
self.objects[name] = methods
cpdef object GetFunction(self, py_string name):
if name in self.functions:
return self.functions[name]
cpdef dict GetFunctions(self):
return self.functions
cpdef dict GetObjects(self):
return self.objects
cpdef object GetObjectMethod(self, py_string objectName, py_string methodName):
if objectName in self.objects:
if methodName in self.objects[objectName]:
return self.objects[objectName][methodName]
cpdef object GetFunctionOrMethod(self, py_string name):
# Name can be "someFunc" or "object.someMethod".
cdef list words
if "." in name:
words = name.split(".")
return self.GetObjectMethod(words[0], words[1])
else:
return self.GetFunction(name)
cpdef py_void SetProperty(self, py_string name, object value):
cdef object allowed = self.IsValueAllowedRecursively(value) # returns True or string.
if allowed is not True:
raise Exception("JavascriptBindings.SetProperty() failed: name=%s, "
"not allowed type: %s (this may be a type of a nested value)"
% (name, allowed))
cdef object valueType = type(value)
if IsFunctionOrMethod(valueType):
self.functions[name] = value
else:
self.properties[name] = value
cpdef py_void Rebind(self):
# Rebind() is called for both first-time binding and rebinding.
cdef PyBrowser pyBrowser
cdef dict functions
cdef dict properties
cdef dict objects
cdef dict methods
for browserId, pyBrowser in g_pyBrowsers.iteritems():
if pyBrowser.GetJavascriptBindings() != self:
continue
# Send to the Renderer process: functions, properties,
# objects and its methods, bindToFrames.
functions = {}
for funcName in self.functions:
functions[funcName] = None
properties = self.properties
objects = {}
for objectName in self.objects:
methods = {}
for methodName in self.objects[objectName]:
methods[methodName] = None
objects[objectName] = methods
pyBrowser.SendProcessMessage(cef_types.PID_RENDERER,
0, "DoJavascriptBindings", [{
"functions": functions,
"properties": properties,
"objects": objects,
"bindToFrames": self.bindToFrames
}])
cpdef dict GetProperties(self):
return self.properties
@staticmethod
def IsValueAllowed(object value):
return JavascriptBindings.IsValueAllowedRecursively(value) is True
@staticmethod
def IsValueAllowedRecursively(object value, py_bool recursion=False):
# When making changes here modify also Frame.SetProperty() as it
# checks for FunctionType, MethodType.
cdef object valueType = type(value)
cdef object valueType2
cdef object key
if valueType == list:
for val in value:
valueType2 = JavascriptBindings.IsValueAllowedRecursively(val, True)
if valueType2 is not True:
return valueType2.__name__
return True
elif valueType == bool:
return True
elif valueType == float:
return True
elif valueType == int:
return True
elif valueType == type(None):
return True
elif IsFunctionOrMethod(valueType):
if recursion:
return valueType.__name__
else:
return True
elif valueType == dict:
for key in value:
valueType2 = JavascriptBindings.IsValueAllowedRecursively(value[key], True)
if valueType2 is not True:
return valueType2.__name__
return True
elif valueType == str or valueType == bytes:
return True
elif PY_MAJOR_VERSION < 3 and valueType == unicode:
# The unicode type is not defined in Python 3.
return True
elif valueType == tuple:
return True
else:
return valueType.__name__