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-rw-r--r--fxjse/dynprop.cpp223
1 files changed, 223 insertions, 0 deletions
diff --git a/fxjse/dynprop.cpp b/fxjse/dynprop.cpp
new file mode 100644
index 0000000000..34f63f4338
--- /dev/null
+++ b/fxjse/dynprop.cpp
@@ -0,0 +1,223 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "fxjse/include/cfxjse_arguments.h"
+#include "fxjse/include/cfxjse_class.h"
+#include "fxjse/include/cfxjse_value.h"
+
+static void FXJSE_DynPropGetterAdapter_MethodCallback(
+ const v8::FunctionCallbackInfo<v8::Value>& info) {
+ v8::Local<v8::Object> hCallBackInfo = info.Data().As<v8::Object>();
+ FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+ hCallBackInfo->GetAlignedPointerFromInternalField(0));
+ v8::Local<v8::String> hPropName =
+ hCallBackInfo->GetInternalField(1).As<v8::String>();
+ ASSERT(lpClass && !hPropName.IsEmpty());
+ v8::String::Utf8Value szPropName(hPropName);
+ CFX_ByteStringC szFxPropName = *szPropName;
+ std::unique_ptr<CFXJSE_Value> lpThisValue(
+ new CFXJSE_Value(info.GetIsolate()));
+ lpThisValue->ForceSetValue(info.This());
+ std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate()));
+ CFXJSE_Arguments impl(&info, lpRetValue.get());
+ lpClass->dynMethodCall(lpThisValue.get(), szFxPropName, impl);
+ if (!lpRetValue->DirectGetValue().IsEmpty()) {
+ info.GetReturnValue().Set(lpRetValue->DirectGetValue());
+ }
+}
+
+static void FXJSE_DynPropGetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass,
+ CFXJSE_Value* pObject,
+ const CFX_ByteStringC& szPropName,
+ CFXJSE_Value* pValue) {
+ ASSERT(lpClass);
+ int32_t nPropType =
+ lpClass->dynPropTypeGetter == nullptr
+ ? FXJSE_ClassPropType_Property
+ : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE);
+ if (nPropType == FXJSE_ClassPropType_Property) {
+ if (lpClass->dynPropGetter) {
+ lpClass->dynPropGetter(pObject, szPropName, pValue);
+ }
+ } else if (nPropType == FXJSE_ClassPropType_Method) {
+ if (lpClass->dynMethodCall && pValue) {
+ v8::Isolate* pIsolate = pValue->GetIsolate();
+ v8::HandleScope hscope(pIsolate);
+ v8::Local<v8::ObjectTemplate> hCallBackInfoTemplate =
+ v8::ObjectTemplate::New(pIsolate);
+ hCallBackInfoTemplate->SetInternalFieldCount(2);
+ v8::Local<v8::Object> hCallBackInfo =
+ hCallBackInfoTemplate->NewInstance();
+ hCallBackInfo->SetAlignedPointerInInternalField(
+ 0, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClass));
+ hCallBackInfo->SetInternalField(
+ 1, v8::String::NewFromUtf8(
+ pIsolate, reinterpret_cast<const char*>(szPropName.raw_str()),
+ v8::String::kNormalString, szPropName.GetLength()));
+ pValue->ForceSetValue(v8::Function::New(
+ pValue->GetIsolate(), FXJSE_DynPropGetterAdapter_MethodCallback,
+ hCallBackInfo));
+ }
+ }
+}
+
+static void FXJSE_DynPropSetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass,
+ CFXJSE_Value* pObject,
+ const CFX_ByteStringC& szPropName,
+ CFXJSE_Value* pValue) {
+ ASSERT(lpClass);
+ int32_t nPropType =
+ lpClass->dynPropTypeGetter == nullptr
+ ? FXJSE_ClassPropType_Property
+ : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE);
+ if (nPropType != FXJSE_ClassPropType_Method) {
+ if (lpClass->dynPropSetter) {
+ lpClass->dynPropSetter(pObject, szPropName, pValue);
+ }
+ }
+}
+
+static FX_BOOL FXJSE_DynPropQueryAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass,
+ CFXJSE_Value* pObject,
+ const CFX_ByteStringC& szPropName) {
+ ASSERT(lpClass);
+ int32_t nPropType =
+ lpClass->dynPropTypeGetter == nullptr
+ ? FXJSE_ClassPropType_Property
+ : lpClass->dynPropTypeGetter(pObject, szPropName, TRUE);
+ return nPropType != FXJSE_ClassPropType_None;
+}
+
+static FX_BOOL FXJSE_DynPropDeleterAdapter(
+ const FXJSE_CLASS_DESCRIPTOR* lpClass,
+ CFXJSE_Value* pObject,
+ const CFX_ByteStringC& szPropName) {
+ ASSERT(lpClass);
+ int32_t nPropType =
+ lpClass->dynPropTypeGetter == nullptr
+ ? FXJSE_ClassPropType_Property
+ : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE);
+ if (nPropType != FXJSE_ClassPropType_Method) {
+ if (lpClass->dynPropDeleter) {
+ return lpClass->dynPropDeleter(pObject, szPropName);
+ } else {
+ return nPropType == FXJSE_ClassPropType_Property ? FALSE : TRUE;
+ }
+ }
+ return FALSE;
+}
+
+static void FXJSE_V8_GenericNamedPropertyQueryCallback(
+ v8::Local<v8::Name> property,
+ const v8::PropertyCallbackInfo<v8::Integer>& info) {
+ v8::Local<v8::Object> thisObject = info.This();
+ const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+ info.Data().As<v8::External>()->Value());
+ v8::Isolate* pIsolate = info.GetIsolate();
+ v8::HandleScope scope(pIsolate);
+ v8::String::Utf8Value szPropName(property);
+ CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
+ std::unique_ptr<CFXJSE_Value> lpThisValue(
+ new CFXJSE_Value(info.GetIsolate()));
+ lpThisValue->ForceSetValue(thisObject);
+ if (FXJSE_DynPropQueryAdapter(lpClass, lpThisValue.get(), szFxPropName)) {
+ info.GetReturnValue().Set(v8::DontDelete);
+ } else {
+ const int32_t iV8Absent = 64;
+ info.GetReturnValue().Set(iV8Absent);
+ }
+}
+
+static void FXJSE_V8_GenericNamedPropertyDeleterCallback(
+ v8::Local<v8::Name> property,
+ const v8::PropertyCallbackInfo<v8::Boolean>& info) {
+ v8::Local<v8::Object> thisObject = info.This();
+ const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+ info.Data().As<v8::External>()->Value());
+ v8::Isolate* pIsolate = info.GetIsolate();
+ v8::HandleScope scope(pIsolate);
+ v8::String::Utf8Value szPropName(property);
+ CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
+ std::unique_ptr<CFXJSE_Value> lpThisValue(
+ new CFXJSE_Value(info.GetIsolate()));
+ lpThisValue->ForceSetValue(thisObject);
+ info.GetReturnValue().Set(
+ !!FXJSE_DynPropDeleterAdapter(lpClass, lpThisValue.get(), szFxPropName));
+}
+
+static void FXJSE_V8_GenericNamedPropertyGetterCallback(
+ v8::Local<v8::Name> property,
+ const v8::PropertyCallbackInfo<v8::Value>& info) {
+ v8::Local<v8::Object> thisObject = info.This();
+ const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+ info.Data().As<v8::External>()->Value());
+ v8::String::Utf8Value szPropName(property);
+ CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
+ std::unique_ptr<CFXJSE_Value> lpThisValue(
+ new CFXJSE_Value(info.GetIsolate()));
+ lpThisValue->ForceSetValue(thisObject);
+ std::unique_ptr<CFXJSE_Value> lpNewValue(new CFXJSE_Value(info.GetIsolate()));
+ FXJSE_DynPropGetterAdapter(lpClass, lpThisValue.get(), szFxPropName,
+ lpNewValue.get());
+ info.GetReturnValue().Set(lpNewValue->DirectGetValue());
+}
+
+static void FXJSE_V8_GenericNamedPropertySetterCallback(
+ v8::Local<v8::Name> property,
+ v8::Local<v8::Value> value,
+ const v8::PropertyCallbackInfo<v8::Value>& info) {
+ v8::Local<v8::Object> thisObject = info.This();
+ const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+ info.Data().As<v8::External>()->Value());
+ v8::String::Utf8Value szPropName(property);
+ CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
+ std::unique_ptr<CFXJSE_Value> lpThisValue(
+ new CFXJSE_Value(info.GetIsolate()));
+ lpThisValue->ForceSetValue(thisObject);
+
+ CFXJSE_Value* lpNewValue = new CFXJSE_Value(info.GetIsolate());
+ lpNewValue->ForceSetValue(value);
+ FXJSE_DynPropSetterAdapter(lpClass, lpThisValue.get(), szFxPropName,
+ lpNewValue);
+ info.GetReturnValue().Set(value);
+}
+
+static void FXJSE_V8_GenericNamedPropertyEnumeratorCallback(
+ const v8::PropertyCallbackInfo<v8::Array>& info) {
+ const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>(
+ info.Data().As<v8::External>()->Value());
+ v8::Isolate* pIsolate = info.GetIsolate();
+ v8::Local<v8::Array> newArray = v8::Array::New(pIsolate, lpClass->propNum);
+ for (int i = 0; i < lpClass->propNum; i++) {
+ newArray->Set(
+ i, v8::String::NewFromUtf8(pIsolate, lpClass->properties[i].name));
+ }
+ info.GetReturnValue().Set(newArray);
+}
+
+void CFXJSE_Class::SetUpNamedPropHandler(
+ v8::Isolate* pIsolate,
+ v8::Local<v8::ObjectTemplate>& hObjectTemplate,
+ const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition) {
+ v8::NamedPropertyHandlerConfiguration configuration(
+ lpClassDefinition->dynPropGetter
+ ? FXJSE_V8_GenericNamedPropertyGetterCallback
+ : 0,
+ lpClassDefinition->dynPropSetter
+ ? FXJSE_V8_GenericNamedPropertySetterCallback
+ : 0,
+ lpClassDefinition->dynPropTypeGetter
+ ? FXJSE_V8_GenericNamedPropertyQueryCallback
+ : 0,
+ lpClassDefinition->dynPropDeleter
+ ? FXJSE_V8_GenericNamedPropertyDeleterCallback
+ : 0,
+ FXJSE_V8_GenericNamedPropertyEnumeratorCallback,
+ v8::External::New(pIsolate,
+ const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition)),
+ v8::PropertyHandlerFlags::kNonMasking);
+ hObjectTemplate->SetHandler(configuration);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 11:31:09 +0000