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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/
//
CefListValue->SetXxxx() functions need first param to be be cast
//
to (int) because GetSize() returns size_t and generates a warning
//
when compiling on VS2008 for x64 platform. Issue reported here:
//
https://code.google.com/p/cefpython/issues/detail?id=165
#
include
"
v8utils.h
"
#
include
"
javascript_callback.h
"
#
include
"
DebugLog.h
"
#
include
"
cefpython_app.h
"
#
include
<
sstream
>
//
----------------------------------------------------------------------------
//
V8 values to CEF values.
//
----------------------------------------------------------------------------
CefRefPtr<CefListValue>
V8ValueListToCefListValue
(
const
CefV8ValueList& v8List) {
//
typedef std::vector<CefRefPtr<CefV8Value> > CefV8ValueList;
CefRefPtr<CefListValue> listValue =
CefListValue::Create
();
for
(CefV8ValueList::const_iterator it = v8List.
begin
(); it != v8List.
end
(); \
++it) {
CefRefPtr<CefV8Value> v8Value = *it;
V8ValueAppendToCefListValue
(v8Value, listValue);
}
return
listValue;
}
void
V8ValueAppendToCefListValue
(CefRefPtr<CefV8Value> v8Value,
CefRefPtr<CefListValue> listValue,
int
nestingLevel) {
if
(!v8Value->
IsValid
()) {
DebugLog
(
"
V8ValueAppendToCefListValue(): IsValid() FAILED
"
);
return
;
}
if
(nestingLevel >
8
) {
DebugLog
(
"
V8ValueAppendToCefListValue(): WARNING: max nesting level (8)
"
\
"
exceeded
"
);
return
;
}
if
(v8Value->
IsUndefined
() || v8Value->
IsNull
()) {
listValue->
SetNull
((
int
)listValue->
GetSize
());
}
else
if
(v8Value->
IsBool
()) {
listValue->
SetBool
((
int
)listValue->
GetSize
(), v8Value->
GetBoolValue
());
}
else
if
(v8Value->
IsInt
()) {
listValue->
SetInt
((
int
)listValue->
GetSize
(), v8Value->
GetIntValue
());
}
else
if
(v8Value->
IsUInt
()) {
uint32 uint32_value = v8Value->
GetUIntValue
();
CefRefPtr<CefBinaryValue> binaryValue =
CefBinaryValue::Create
(
&uint32_value,
sizeof
(uint32_value));
listValue->
SetBinary
((
int
)listValue->
GetSize
(), binaryValue);
}
else
if
(v8Value->
IsDouble
()) {
listValue->
SetDouble
((
int
)listValue->
GetSize
(), v8Value->
GetDoubleValue
());
}
else
if
(v8Value->
IsDate
()) {
//
TODO: in time_utils.pyx there are already functions for
//
converting cef_time_t to python DateTime, we could easily
//
add a new function for converting the python DateTime to
//
string and then to CefString and expose the function using
//
the "public" keyword. But how do we get the cef_time_t
//
structure from the CefTime class? GetDateValue() returns
//
CefTime class.
listValue->
SetNull
((
int
)listValue->
GetSize
());
}
else
if
(v8Value->
IsString
()) {
listValue->
SetString
((
int
)listValue->
GetSize
(), v8Value->
GetStringValue
());
}
else
if
(v8Value->
IsArray
()) {
//
Check for IsArray() must happen before the IsObject() check.
int
length = v8Value->
GetArrayLength
();
CefRefPtr<CefListValue> newListValue =
CefListValue::Create
();
for
(
int
i =
0
; i < length; ++i) {
V8ValueAppendToCefListValue
(v8Value->
GetValue
(i), newListValue,
nestingLevel +
1
);
}
listValue->
SetList
((
int
)listValue->
GetSize
(), newListValue);
}
else
if
(v8Value->
IsFunction
()) {
//
Check for IsFunction() must happen before the IsObject() check.
if
(
CefV8Context::InContext
()) {
CefRefPtr<CefV8Context> context = \
CefV8Context::GetCurrentContext
();
CefRefPtr<CefFrame> frame = context->
GetFrame
();
std::string strCallbackId =
PutJavascriptCallback
(frame, v8Value);
/*
strCallbackId = '####cefpython####' \
'{"what"=>"javascript-callback", ..}'
*/
listValue->
SetString
((
int
)listValue->
GetSize
(), strCallbackId);
}
else
{
listValue->
SetNull
((
int
)listValue->
GetSize
());
DebugLog
(
"
V8ValueAppendToCefListValue() FAILED: not in V8 context
"
"
, FATAL ERROR!
"
);
}
}
else
if
(v8Value->
IsObject
()) {
//
Check for IsObject() must happen after the IsArray()
//
and IsFunction() checks.
listValue->
SetDictionary
((
int
)listValue->
GetSize
(),
V8ObjectToCefDictionaryValue
(v8Value, nestingLevel +
1
));
}
else
{
listValue->
SetNull
((
int
)listValue->
GetSize
());
DebugLog
(
"
V8ValueAppendToCefListValue() FAILED: unknown V8 type
"
);
}
}
CefRefPtr<CefDictionaryValue>
V8ObjectToCefDictionaryValue
(
CefRefPtr<CefV8Value> v8Object,
int
nestingLevel) {
if
(!v8Object->
IsValid
()) {
DebugLog
(
"
V8ObjectToCefDictionaryValue(): IsValid() FAILED
"
);
return
CefDictionaryValue::Create
();
}
if
(nestingLevel >
8
) {
DebugLog
(
"
V8ObjectToCefDictionaryValue(): WARNING:
"
\
"
max nesting level (8) exceeded
"
);
return
CefDictionaryValue::Create
();
}
if
(!v8Object->
IsObject
()) {
DebugLog
(
"
V8ObjectToCefDictionaryValue(): IsObject() FAILED
"
);
return
CefDictionaryValue::Create
();
}
CefRefPtr<CefDictionaryValue> ret =
CefDictionaryValue::Create
();
std::vector<CefString> keys;
if
(!v8Object->
GetKeys
(keys)) {
DebugLog
(
"
V8ObjectToCefDictionaryValue(): GetKeys() FAILED
"
);
return
ret;
}
for
(std::vector<CefString>::iterator it = keys.
begin
(); \
it != keys.
end
(); ++it) {
CefString key = *it;
CefRefPtr<CefV8Value> v8Value = v8Object->
GetValue
(key);
if
(v8Value->
IsUndefined
() || v8Value->
IsNull
()) {
ret->
SetNull
(key);
}
else
if
(v8Value->
IsBool
()) {
ret->
SetBool
(key, v8Value->
GetBoolValue
());
}
else
if
(v8Value->
IsInt
()) {
ret->
SetInt
(key, v8Value->
GetIntValue
());
}
else
if
(v8Value->
IsUInt
()) {
uint32 uint32_value = v8Value->
GetUIntValue
();
CefRefPtr<CefBinaryValue> binaryValue =
CefBinaryValue::Create
(
&uint32_value,
sizeof
(uint32_value));
ret->
SetBinary
(key, binaryValue);
}
else
if
(v8Value->
IsDouble
()) {
ret->
SetDouble
(key, v8Value->
GetDoubleValue
());
}
else
if
(v8Value->
IsDate
()) {
//
TODO: in time_utils.pyx there are already functions for
//
converting cef_time_t to python DateTime, we could easily
//
add a new function for converting the python DateTime to
//
string and then to CefString and expose the function using
//
the "public" keyword. But how do we get the cef_time_t
//
structure from the CefTime class? GetDateValue() returns
//
CefTime class.
ret->
SetNull
(key);
}
else
if
(v8Value->
IsString
()) {
ret->
SetString
(key, v8Value->
GetStringValue
());
}
else
if
(v8Value->
IsArray
()) {
//
Check for IsArray() must happen before the IsObject() check.
int
length = v8Value->
GetArrayLength
();
CefRefPtr<CefListValue> newListValue =
CefListValue::Create
();
for
(
int
i =
0
; i < length; ++i) {
V8ValueAppendToCefListValue
(v8Value->
GetValue
(i), newListValue,
nestingLevel +
1
);
}
ret->
SetList
(key, newListValue);
}
else
if
(v8Value->
IsFunction
()) {
//
Check for IsFunction() must happen before the IsObject() check.
if
(
CefV8Context::InContext
()) {
CefRefPtr<CefV8Context> context = \
CefV8Context::GetCurrentContext
();
CefRefPtr<CefFrame> frame = context->
GetFrame
();
std::string strCallbackId =
PutJavascriptCallback
(
frame, v8Value);
/*
strCallbackId = '####cefpython####' \
'{"what"=>"javascript-callback", ..}'
*/
ret->
SetString
(key, strCallbackId);
}
else
{
ret->
SetNull
(key);
DebugLog
(
"
V8ObjectToCefDictionaryValue() FAILED:
"
\
"
not in V8 context FATAL ERROR!
"
);
}
}
else
if
(v8Value->
IsObject
()) {
//
Check for IsObject() must happen after the IsArray()
//
and IsFunction() checks.
ret->
SetDictionary
(key,
V8ObjectToCefDictionaryValue
(v8Value, nestingLevel +
1
));
}
else
{
ret->
SetNull
(key);
DebugLog
(
"
V8ObjectToCefDictionaryValue() FAILED: unknown V8 type
"
);
}
}
return
ret;
}
//
----------------------------------------------------------------------------
//
CEF values to V8 values.
//
----------------------------------------------------------------------------
//
TODO: send callbackId using CefBinaryNamedValue, see:
//
http://www.magpcss.org/ceforum/viewtopic.php?f=6&t=10881
struct
PythonCallback
{
int
callbackId;
char
uniqueCefBinaryValueSize[
16
];
};
template
<
typename
T>
inline
std::string
AnyToString
(
const
T& value)
{
std::ostringstream oss;
oss << value;
return
oss.
str
();
}
CefV8ValueList
CefListValueToCefV8ValueList
(
CefRefPtr<CefListValue> listValue) {
//
CefV8ValueList = typedef std::vector<CefRefPtr<CefV8Value> >
CefV8ValueList v8ValueVector;
CefRefPtr<CefV8Value> v8List =
CefListValueToV8Value
(listValue);
int
v8ListLength = v8List->
GetArrayLength
();
for
(
int
i =
0
; i < v8ListLength; ++i) {
v8ValueVector.
push_back
(v8List->
GetValue
(i));
}
return
v8ValueVector;
}
CefRefPtr<CefV8Value>
CefListValueToV8Value
(
CefRefPtr<CefListValue> listValue,
int
nestingLevel) {
if
(!listValue->
IsValid
()) {
DebugLog
(
"
CefListValueToV8Value() FAILED:
"
\
"
CefDictionaryValue is invalid
"
);
return
CefV8Value::CreateNull
();
}
if
(nestingLevel >
8
) {
DebugLog
(
"
CefListValueToV8Value(): WARNING:
"
\
"
max nesting level (8) exceeded
"
);
return
CefV8Value::CreateNull
();
}
int
listSize = (
int
)listValue->
GetSize
();
CefRefPtr<CefV8Value> ret =
CefV8Value::CreateArray
(listSize);
CefRefPtr<CefBinaryValue> binaryValue;
PythonCallback pyCallback;
CefRefPtr<CefV8Handler> v8FunctionHandler;
for
(
int
key =
0
; key < listSize; ++key) {
cef_value_type_t
valueType = listValue->
GetType
(key);
bool
success;
std::string callbackName =
"
python_callback_
"
;
if
(valueType ==
VTYPE_NULL
) {
success = ret->
SetValue
(key,
CefV8Value::CreateNull
());
}
else
if
(valueType ==
VTYPE_BOOL
) {
success = ret->
SetValue
(key,
CefV8Value::CreateBool
(listValue->
GetBool
(key)));
}
else
if
(valueType ==
VTYPE_INT
) {
success = ret->
SetValue
(key,
CefV8Value::CreateInt
(listValue->
GetInt
(key)));
}
else
if
(valueType ==
VTYPE_DOUBLE
) {
success = ret->
SetValue
(key,
CefV8Value::CreateDouble
(listValue->
GetDouble
(key)));
}
else
if
(valueType ==
VTYPE_STRING
) {
success = ret->
SetValue
(key,
CefV8Value::CreateString
(listValue->
GetString
(key)));
}
else
if
(valueType ==
VTYPE_BINARY
) {
binaryValue = listValue->
GetBinary
(key);
if
(binaryValue->
GetSize
() ==
sizeof
(pyCallback)) {
binaryValue->
GetData
(&pyCallback,
sizeof
(pyCallback),
0
);
v8FunctionHandler =
new
V8FunctionHandler
(
NULL
, pyCallback.
callbackId
);
//
You must provide a function name to
//
CefV8Value::CreateFunction(), otherwise it fails.
callbackName.
append
(
AnyToString
(pyCallback.
callbackId
));
success = ret->
SetValue
(key,
CefV8Value::CreateFunction
(
callbackName, v8FunctionHandler));
}
else
{
DebugLog
(
"
CefListValueToV8Value(): WARNING:
"
\
"
unknown binary value, setting value to null
"
);
success = ret->
SetValue
(key,
CefV8Value::CreateNull
());
}
}
else
if
(valueType ==
VTYPE_DICTIONARY
) {
success = ret->
SetValue
(key,
CefDictionaryValueToV8Value
(
listValue->
GetDictionary
(key),
nestingLevel +
1
));
}
else
if
(valueType ==
VTYPE_LIST
) {
success = ret->
SetValue
(key,
CefListValueToV8Value
(
listValue->
GetList
(key),
nestingLevel +
1
));
}
else
{
DebugLog
(
"
CefListValueToV8Value(): WARNING:
"
\
"
unknown type, setting value to null
"
);
success = ret->
SetValue
(key,
CefV8Value::CreateNull
());
}
if
(!success) {
DebugLog
(
"
CefListValueToV8Value(): WARNING:
"
\
"
ret->SetValue() failed
"
);
}
}
return
ret;
}
CefRefPtr<CefV8Value>
CefDictionaryValueToV8Value
(
CefRefPtr<CefDictionaryValue> dictValue,
int
nestingLevel) {
if
(!dictValue->
IsValid
()) {
DebugLog
(
"
CefDictionaryValueToV8Value() FAILED:
"
\
"
CefDictionaryValue is invalid
"
);
return
CefV8Value::CreateNull
();
}
if
(nestingLevel >
8
) {
DebugLog
(
"
CefDictionaryValueToV8Value(): WARNING:
"
\
"
max nesting level (8) exceeded
"
);
return
CefV8Value::CreateNull
();
}
std::vector<CefString> keys;
if
(!dictValue->
GetKeys
(keys)) {
DebugLog
(
"
CefDictionaryValueToV8Value() FAILED:
"
\
"
dictValue->GetKeys() failed
"
);
return
CefV8Value::CreateNull
();
}
CefRefPtr<CefV8Value> ret =
CefV8Value::CreateObject
(
NULL
);
CefRefPtr<CefBinaryValue> binaryValue;
PythonCallback pyCallback;
CefRefPtr<CefV8Handler> v8FunctionHandler;
for
(std::vector<CefString>::iterator it = keys.
begin
(); \
it != keys.
end
(); ++it) {
CefString key = *it;
cef_value_type_t
valueType = dictValue->
GetType
(key);
bool
success;
std::string callbackName =
"
python_callback_
"
;
if
(valueType ==
VTYPE_NULL
) {
success = ret->
SetValue
(key,
CefV8Value::CreateNull
(),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
if
(valueType ==
VTYPE_BOOL
) {
success = ret->
SetValue
(key,
CefV8Value::CreateBool
(dictValue->
GetBool
(key)),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
if
(valueType ==
VTYPE_INT
) {
success = ret->
SetValue
(key,
CefV8Value::CreateInt
(dictValue->
GetInt
(key)),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
if
(valueType ==
VTYPE_DOUBLE
) {
success = ret->
SetValue
(key,
CefV8Value::CreateDouble
(dictValue->
GetDouble
(key)),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
if
(valueType ==
VTYPE_STRING
) {
success = ret->
SetValue
(key,
CefV8Value::CreateString
(dictValue->
GetString
(key)),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
if
(valueType ==
VTYPE_BINARY
) {
binaryValue = dictValue->
GetBinary
(key);
if
(binaryValue->
GetSize
() ==
sizeof
(pyCallback)) {
binaryValue->
GetData
(&pyCallback,
sizeof
(pyCallback),
0
);
v8FunctionHandler =
new
V8FunctionHandler
(
NULL
, pyCallback.
callbackId
);
//
You must provide a function name to
//
CefV8Value::CreateFunction(), otherwise it fails.
callbackName.
append
(
AnyToString
(pyCallback.
callbackId
));
success = ret->
SetValue
(key,
CefV8Value::CreateFunction
(
callbackName, v8FunctionHandler),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
{
DebugLog
(
"
CefListValueToV8Value(): WARNING:
"
\
"
unknown binary value, setting value to null
"
);
success = ret->
SetValue
(key,
CefV8Value::CreateNull
(),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
}
else
if
(valueType ==
VTYPE_DICTIONARY
) {
success = ret->
SetValue
(key,
CefDictionaryValueToV8Value
(
dictValue->
GetDictionary
(key),
nestingLevel +
1
),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
if
(valueType ==
VTYPE_LIST
) {
success = ret->
SetValue
(key,
CefListValueToV8Value
(
dictValue->
GetList
(key),
nestingLevel +
1
),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
else
{
DebugLog
(
"
CefDictionaryValueToV8Value(): WARNING:
"
\
"
unknown type, setting value to null
"
);
success = ret->
SetValue
(key,
CefV8Value::CreateNull
(),
V8_PROPERTY_ATTRIBUTE_NONE
);
}
if
(!success) {
DebugLog
(
"
CefDictionaryValueToV8Value(): WARNING:
"
\
"
ret->SetValue() failed
"
);
}
}
return
ret;
}
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