cefpython/cefpython/v8utils_cef1.pyx at cefpython31 · 2php/cefpython · GitHub

Repository navigation

History

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

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

# License: New BSD License.

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

# CefV8 Objects, Arrays and Functions can be created or modified only

# inside V8 context, you need to call CefV8Context::Enter() and

# CefV8Context::Exit(), see:

# http://code.google.com/p/chromiumembedded/issues/detail?id=203

cdef list CefV8StackTraceToPython(CefRefPtr[CefV8StackTrace] cefTrace):

cdef int frameNumber

cdef int frameCount = cefTrace.get().GetFrameCount()

cdef CefRefPtr[CefV8StackFrame] cefFrame

cdef CefV8StackFrame* framePtr

cdef list pyTrace = []

for frameNumber in range(0, frameCount):

cefFrame = cefTrace.get().GetFrame(frameNumber)

framePtr = cefFrame.get()

pyFrame = {}

pyFrame["script"] = CefToPyString(framePtr.GetScriptName())

pyFrame["scriptOrSourceUrl"] = CefToPyString(

framePtr.GetScriptNameOrSourceURL())

pyFrame["function"] = CefToPyString(framePtr.GetFunctionName())

pyFrame["line"] = framePtr.GetLineNumber()

pyFrame["column"] = framePtr.GetColumn()

pyFrame["isEval"] = framePtr.IsEval()

pyFrame["isConstructor"] = framePtr.IsConstructor()

pyTrace.append(pyFrame)

return pyTrace

cpdef list GetJavascriptStackTrace(int frameLimit=100):

assert IsThread(TID_UI), (

"cefpython.GetJavascriptStackTrace() may only be called on the UI thread")

cdef CefRefPtr[CefV8StackTrace] cefTrace = (

cef_v8_stack_trace.GetCurrent(frameLimit))

return CefV8StackTraceToPython(cefTrace)

cpdef str FormatJavascriptStackTrace(list stackTrace):

cdef str formatted = ""

cdef dict frame

for frameNumber, frame in enumerate(stackTrace):

formatted += "\t[%s] %s() in %s on line %s (col:%s)\n" % (

frameNumber,

frame["function"],

frame["scriptOrSourceUrl"],

frame["line"],

frame["column"])

return formatted

cdef object V8ToPyValue(

CefRefPtr[CefV8Value] v8Value,

CefRefPtr[CefV8Context] v8Context,

int nestingLevel=0):

# With nestingLevel > 10 we get system exceptions.

if nestingLevel > 8:

raise Exception("V8ToPyValue() failed: data passed from Javascript to "

"Python has more than 8 levels of nesting, this is probably an infinite "

"recursion, stopping.")

cdef CefV8Value* v8ValuePtr = v8Value.get()

cdef CefString cefString

cdef CefString cefFuncName

cdef cpp_vector[CefString] keys

cdef cpp_vector[CefString].iterator iterator

cdef list pyArray

cdef int callbackId

cdef dict pyDict

# A test against IsArray should be done before IsObject().

if v8ValuePtr.IsArray():

pyArray = []

for key in range(0, v8ValuePtr.GetArrayLength()):

pyArray.append(V8ToPyValue(

v8ValuePtr.GetValue(<int>int(key)),

v8Context,

nestingLevel+1))

return pyArray

elif v8ValuePtr.IsBool():

return v8ValuePtr.GetBoolValue()

elif v8ValuePtr.IsDate():

# TODO: convert it to string with no error.

raise Exception("V8ToPyValue() failed: Date object is not supported, "

"you are not allowed to pass it from Javascript to Python.")

elif v8ValuePtr.IsInt():

# A check against IsInt() must be done before IsDouble(), as any js integer

# returns true when calling IsDouble().

return v8ValuePtr.GetIntValue()

elif v8ValuePtr.IsUInt():

return v8ValuePtr.GetUIntValue()

elif v8ValuePtr.IsDouble():

return v8ValuePtr.GetDoubleValue()

elif v8ValuePtr.IsFunction():

callbackId = PutV8JavascriptCallback(v8Value, v8Context)

return JavascriptCallback(callbackId)

elif v8ValuePtr.IsNull():

return None

elif v8ValuePtr.IsObject():

# A test against IsObject() should be done after IsArray().

# Remember about increasing the nestingLevel.

v8ValuePtr.GetKeys(keys)

iterator = keys.begin()

pyDict = {}

while iterator != keys.end():

cefString = deref(iterator)

key = CefToPyString(cefString)

value = V8ToPyValue(

v8ValuePtr.GetValue(cefString),

v8Context,

nestingLevel+1)

pyDict[key] = value

preinc(iterator)

return pyDict

elif v8ValuePtr.IsString():

return CefToPyString(v8ValuePtr.GetStringValue())

elif v8ValuePtr.IsUndefined():

return None

else:

raise Exception("V8ToPyValue() failed: unknown type of CefV8Value.")

# Any function calling PyToV8Value must be inside that v8Context,

# check current context and call Enter if required otherwise exception is

# thrown while trying to create an array, object or function.

cdef CefRefPtr[CefV8Value] PyToV8Value(

object pyValue,

CefRefPtr[CefV8Context] v8Context,

int nestingLevel=0) except *:

# With nestingLevel > 10 we get system exceptions.

if nestingLevel > 8:

raise Exception("PyToV8Value() failed: data passed from Python "

"to Javascript has more than 8 levels of nesting, this is probably "

"an infinite recursion, stopping.")

cdef cpp_bool sameContext

if g_debug:

sameContext = v8Context.get().IsSame(cef_v8_static.GetCurrentContext())

if not sameContext:

raise Exception("PyToV8Value() called in wrong v8 context")

cdef CefString cefString

cdef CefRefPtr[CefV8Value] v8Value

cdef CefString cefFuncName

cdef type pyValueType = type(pyValue)

if pyValueType == tuple:

pyValue = list(pyValue)

# Check type again, as code above may have changed it.

pyValueType = type(pyValue)

cdef int index

cdef object value

cdef CefRefPtr[V8FunctionHandler] v8FunctionHandler

cdef CefRefPtr[CefV8Handler] v8Handler

cdef int callbackId

cdef object key

if pyValueType == list:

v8Value = cef_v8_static.CreateArray(len(pyValue))

for index,value in enumerate(pyValue):

v8Value.get().SetValue(

index,

PyToV8Value(value, v8Context, nestingLevel+1))

return v8Value

elif pyValueType == bool:

return cef_v8_static.CreateBool(bool(pyValue))

elif pyValueType == int:

return cef_v8_static.CreateInt(int(pyValue))

elif pyValueType == long:

# Int32 range is -2147483648..2147483647, we've increased the

# minimum size by one as Cython was throwing a warning:

# "unary minus operator applied to unsigned type, result still

# unsigned".

if pyValue <= 2147483647 and pyValue >= -2147483647:

return cef_v8_static.CreateInt(int(pyValue))

else:

PyToCefString(str(pyValue), cefString)

return cef_v8_static.CreateString(cefString)

elif pyValueType == float:

return cef_v8_static.CreateDouble(float(pyValue))

elif pyValueType == types.FunctionType or pyValueType == types.MethodType:

v8FunctionHandler = <CefRefPtr[V8FunctionHandler]>new V8FunctionHandler()

v8FunctionHandler.get().SetContext(v8Context)

v8Handler = <CefRefPtr[CefV8Handler]>v8FunctionHandler.get()

PyToCefString(pyValue.__name__, cefFuncName)

# V8PythonCallback.

v8Value = cef_v8_static.CreateFunction(cefFuncName, v8Handler)

callbackId = PutPythonCallback(pyValue)

v8FunctionHandler.get().SetCallback_RemovePythonCallback(

<RemovePythonCallback_type>RemovePythonCallback)

v8FunctionHandler.get().SetPythonCallbackID(callbackId)

return v8Value

elif pyValueType == type(None):

return cef_v8_static.CreateNull()

elif pyValueType == dict:

v8Value = cef_v8_static.CreateObject(<CefRefPtr[CefV8Accessor]>NULL)

for key, value in pyValue.items():

# A dict may have an int key, a string key or even a tuple key:

# {0: 12, '0': 12, (0, 1): 123}

# Remember about increasing nestingLevel.

PyToCefString(str(key), cefString)

v8Value.get().SetValue(

cefString,

PyToV8Value(value, v8Context, nestingLevel+1),

V8_PROPERTY_ATTRIBUTE_NONE)

return v8Value

elif pyValueType == bytes or pyValueType == str \

or (PY_MAJOR_VERSION < 3 and pyValueType == unicode):

# The unicode type is not defined in Python 3.

PyToCefString(pyValue, cefString)

return cef_v8_static.CreateString(cefString)

elif pyValueType == type:

PyToCefString(str(pyValue), cefString)

return cef_v8_static.CreateString(cefString)

else:

raise Exception("PyToV8Value() failed: an unsupported python type "

"was passed from python to javascript: %s, value: %s"

% (pyValueType.__name__, pyValue))

cefpython/cefpython/v8utils_cef1.pyx at cefpython31 · 2php/cefpython · GitHub

Repository navigation

Expand file tree

Breadcrumbs

v8utils_cef1.pyx

Latest commit

History

Breadcrumbs

v8utils_cef1.pyx

File metadata and controls