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// Copyright (c) 2013 CEF Python, see the Authors file.
// All rights reserved. Licensed under BSD 3-clause license.
// Project website: https://github.com/cztomczak/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://github.com/cztomczak/cefpython/issues/165
#include "v8utils.h"
#include "javascript_callback.h"
#include "include/base/cef_logging.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()) {
LOG(ERROR) << "[Renderer process] V8ValueAppendToCefListValue():"
" IsValid() failed";
return;
}
if (nestingLevel > 8) {
LOG(ERROR) << "[Renderer process] V8ValueAppendToCefListValue():"
" 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_t 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());
LOG(ERROR) << "[Renderer process] V8ValueAppendToCefListValue():"
" not in V8 context";
return;
}
} 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());
LOG(ERROR) << "[Renderer process] V8ValueAppendToCefListValue():"
" unknown V8 type";
}
}
CefRefPtr<CefDictionaryValue> V8ObjectToCefDictionaryValue(
CefRefPtr<CefV8Value> v8Object,
int nestingLevel) {
if (!v8Object->IsValid()) {
LOG(ERROR) << "[Renderer process] V8ObjectToCefDictionaryValue():"
" IsValid() failed";
return CefDictionaryValue::Create();
}
if (nestingLevel > 8) {
LOG(ERROR) << "[Renderer process] V8ObjectToCefDictionaryValue():"
" max nesting level (8) exceeded";
return CefDictionaryValue::Create();
}
if (!v8Object->IsObject()) {
LOG(ERROR) << "[Renderer process] V8ObjectToCefDictionaryValue():"
" IsObject() failed";
return CefDictionaryValue::Create();
}
CefRefPtr<CefDictionaryValue> ret = CefDictionaryValue::Create();
std::vector<CefString> keys;
if (!v8Object->GetKeys(keys)) {
LOG(ERROR) << "[Renderer process] 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_t 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);
LOG(ERROR) << "[Renderer process]"
" V8ObjectToCefDictionaryValue():"
" not in V8 context";
}
} 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);
LOG(ERROR) << "[Renderer process] V8ObjectToCefDictionaryValue():"
" 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()) {
LOG(ERROR) << "[Renderer process] CefListValueToV8Value():"
" CefDictionaryValue is invalid";
return CefV8Value::CreateNull();
}
if (nestingLevel > 8) {
LOG(ERROR) << "[Renderer process] CefListValueToV8Value():"
" 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(
nullptr, 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 {
LOG(ERROR) << "[Renderer process] CefListValueToV8Value():"
" 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 {
LOG(ERROR) << "[Renderer process] CefListValueToV8Value():"
" unknown type, setting value to null";
success = ret->SetValue(key,
CefV8Value::CreateNull());
}
if (!success) {
LOG(ERROR) << "[Renderer process] CefListValueToV8Value():"
" ret->SetValue() failed";
}
}
return ret;
}
CefRefPtr<CefV8Value> CefDictionaryValueToV8Value(
CefRefPtr<CefDictionaryValue> dictValue,
int nestingLevel) {
if (!dictValue->IsValid()) {
LOG(ERROR) << "[Renderer process] CefDictionaryValueToV8Value():"
" CefDictionaryValue is invalid";
return CefV8Value::CreateNull();
}
if (nestingLevel > 8) {
LOG(ERROR) << "[Renderer process] CefDictionaryValueToV8Value():"
" max nesting level (8) exceeded";
return CefV8Value::CreateNull();
}
std::vector<CefString> keys;
if (!dictValue->GetKeys(keys)) {
LOG(ERROR) << "[Renderer process] CefDictionaryValueToV8Value():"
" dictValue->GetKeys() failed";
return CefV8Value::CreateNull();
}
CefRefPtr<CefV8Value> ret = CefV8Value::CreateObject(nullptr, nullptr);
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(
nullptr, 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 {
LOG(ERROR) << "[Renderer process] CefListValueToV8Value():"
" 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 {
LOG(ERROR) << "[Renderer process] CefDictionaryValueToV8Value():"
" unknown type, setting value to null";
success = ret->SetValue(key,
CefV8Value::CreateNull(),
V8_PROPERTY_ATTRIBUTE_NONE);
}
if (!success) {
LOG(ERROR) << "[Renderer process] CefDictionaryValueToV8Value():"
" ret->SetValue() failed";
}
}
return ret;
}