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-rw-r--r--xfa/fxjse/class.cpp348
1 files changed, 348 insertions, 0 deletions
diff --git a/xfa/fxjse/class.cpp b/xfa/fxjse/class.cpp
new file mode 100644
index 0000000000..e87fbbfaf9
--- /dev/null
+++ b/xfa/fxjse/class.cpp
@@ -0,0 +1,348 @@
+// 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 "xfa/fxjse/class.h"
+
+#include "xfa/fxjse/context.h"
+#include "xfa/fxjse/scope_inline.h"
+#include "xfa/fxjse/util_inline.h"
+#include "xfa/fxjse/value.h"
+
+static void FXJSE_V8ConstructorCallback_Wrapper(
+ const v8::FunctionCallbackInfo<v8::Value>& info);
+static void FXJSE_V8FunctionCallback_Wrapper(
+ const v8::FunctionCallbackInfo<v8::Value>& info);
+static void FXJSE_V8GetterCallback_Wrapper(
+ v8::Local<v8::String> property,
+ const v8::PropertyCallbackInfo<v8::Value>& info);
+static void FXJSE_V8SetterCallback_Wrapper(
+ v8::Local<v8::String> property,
+ v8::Local<v8::Value> value,
+ const v8::PropertyCallbackInfo<void>& info);
+
+void FXJSE_DefineFunctions(FXJSE_HCONTEXT hContext,
+ const FXJSE_FUNCTION* lpFunctions,
+ int nNum) {
+ CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
+ ASSERT(lpContext);
+ CFXJSE_ScopeUtil_IsolateHandleContext scope(lpContext);
+ v8::Isolate* pIsolate = lpContext->GetRuntime();
+ v8::Local<v8::Object> hGlobalObject =
+ FXJSE_GetGlobalObjectFromContext(scope.GetLocalContext());
+ for (int32_t i = 0; i < nNum; i++) {
+ v8::Maybe<bool> maybe_success = hGlobalObject->DefineOwnProperty(
+ scope.GetLocalContext(),
+ v8::String::NewFromUtf8(pIsolate, lpFunctions[i].name),
+ v8::Function::New(
+ pIsolate, FXJSE_V8FunctionCallback_Wrapper,
+ v8::External::New(pIsolate,
+ const_cast<FXJSE_FUNCTION*>(lpFunctions + i))),
+ static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
+ if (!maybe_success.FromMaybe(false))
+ return;
+ }
+}
+
+FXJSE_HCLASS FXJSE_DefineClass(FXJSE_HCONTEXT hContext,
+ const FXJSE_CLASS* lpClass) {
+ CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
+ ASSERT(lpContext);
+ return reinterpret_cast<FXJSE_HCLASS>(
+ CFXJSE_Class::Create(lpContext, lpClass, FALSE));
+}
+
+FXJSE_HCLASS FXJSE_GetClass(FXJSE_HCONTEXT hContext,
+ const CFX_ByteStringC& szName) {
+ return reinterpret_cast<FXJSE_HCLASS>(CFXJSE_Class::GetClassFromContext(
+ reinterpret_cast<CFXJSE_Context*>(hContext), szName));
+}
+
+static void FXJSE_V8FunctionCallback_Wrapper(
+ const v8::FunctionCallbackInfo<v8::Value>& info) {
+ const FXJSE_FUNCTION* lpFunctionInfo =
+ static_cast<FXJSE_FUNCTION*>(info.Data().As<v8::External>()->Value());
+ if (!lpFunctionInfo) {
+ return;
+ }
+ CFX_ByteStringC szFunctionName(lpFunctionInfo->name);
+ CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
+ lpThisValue->ForceSetValue(info.This());
+ CFXJSE_Value* lpRetValue = CFXJSE_Value::Create(info.GetIsolate());
+ CFXJSE_ArgumentsImpl impl = {&info, lpRetValue};
+ lpFunctionInfo->callbackProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue),
+ szFunctionName,
+ reinterpret_cast<CFXJSE_Arguments&>(impl));
+ if (!lpRetValue->DirectGetValue().IsEmpty()) {
+ info.GetReturnValue().Set(lpRetValue->DirectGetValue());
+ }
+ delete lpRetValue;
+ lpRetValue = NULL;
+ delete lpThisValue;
+ lpThisValue = NULL;
+}
+
+static void FXJSE_V8ClassGlobalConstructorCallback_Wrapper(
+ const v8::FunctionCallbackInfo<v8::Value>& info) {
+ const FXJSE_CLASS* lpClassDefinition =
+ static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
+ if (!lpClassDefinition) {
+ return;
+ }
+ CFX_ByteStringC szFunctionName(lpClassDefinition->name);
+ CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
+ lpThisValue->ForceSetValue(info.This());
+ CFXJSE_Value* lpRetValue = CFXJSE_Value::Create(info.GetIsolate());
+ CFXJSE_ArgumentsImpl impl = {&info, lpRetValue};
+ lpClassDefinition->constructor(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue),
+ szFunctionName,
+ reinterpret_cast<CFXJSE_Arguments&>(impl));
+ if (!lpRetValue->DirectGetValue().IsEmpty()) {
+ info.GetReturnValue().Set(lpRetValue->DirectGetValue());
+ }
+ delete lpRetValue;
+ lpRetValue = NULL;
+ delete lpThisValue;
+ lpThisValue = NULL;
+}
+
+static void FXJSE_V8GetterCallback_Wrapper(
+ v8::Local<v8::String> property,
+ const v8::PropertyCallbackInfo<v8::Value>& info) {
+ const FXJSE_PROPERTY* lpPropertyInfo =
+ static_cast<FXJSE_PROPERTY*>(info.Data().As<v8::External>()->Value());
+ if (!lpPropertyInfo) {
+ return;
+ }
+ CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
+ CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
+ CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
+ lpThisValue->ForceSetValue(info.This());
+ lpPropertyInfo->getProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue),
+ szPropertyName,
+ reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
+ info.GetReturnValue().Set(lpPropValue->DirectGetValue());
+ delete lpThisValue;
+ lpThisValue = NULL;
+ delete lpPropValue;
+ lpPropValue = NULL;
+}
+
+static void FXJSE_V8SetterCallback_Wrapper(
+ v8::Local<v8::String> property,
+ v8::Local<v8::Value> value,
+ const v8::PropertyCallbackInfo<void>& info) {
+ const FXJSE_PROPERTY* lpPropertyInfo =
+ static_cast<FXJSE_PROPERTY*>(info.Data().As<v8::External>()->Value());
+ if (!lpPropertyInfo) {
+ return;
+ }
+ CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
+ CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
+ CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
+ lpThisValue->ForceSetValue(info.This());
+ lpPropValue->ForceSetValue(value);
+ lpPropertyInfo->setProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue),
+ szPropertyName,
+ reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
+ delete lpThisValue;
+ lpThisValue = NULL;
+ delete lpPropValue;
+ lpPropValue = NULL;
+}
+
+static void FXJSE_V8ConstructorCallback_Wrapper(
+ const v8::FunctionCallbackInfo<v8::Value>& info) {
+ const FXJSE_CLASS* lpClassDefinition =
+ static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
+ if (!lpClassDefinition) {
+ return;
+ }
+ FXSYS_assert(info.This()->InternalFieldCount());
+ info.This()->SetAlignedPointerInInternalField(0, NULL);
+}
+
+FXJSE_HRUNTIME CFXJSE_Arguments::GetRuntime() const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ return reinterpret_cast<FXJSE_HRUNTIME>(
+ lpArguments->m_pRetValue->GetIsolate());
+}
+
+int32_t CFXJSE_Arguments::GetLength() const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ return lpArguments->m_pInfo->Length();
+}
+
+FXJSE_HVALUE CFXJSE_Arguments::GetValue(int32_t index) const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ CFXJSE_Value* lpArgValue = CFXJSE_Value::Create(v8::Isolate::GetCurrent());
+ ASSERT(lpArgValue);
+ lpArgValue->ForceSetValue((*lpArguments->m_pInfo)[index]);
+ return reinterpret_cast<FXJSE_HVALUE>(lpArgValue);
+}
+
+FX_BOOL CFXJSE_Arguments::GetBoolean(int32_t index) const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ return (*lpArguments->m_pInfo)[index]->BooleanValue();
+}
+
+int32_t CFXJSE_Arguments::GetInt32(int32_t index) const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ return static_cast<int32_t>((*lpArguments->m_pInfo)[index]->NumberValue());
+}
+
+FX_FLOAT CFXJSE_Arguments::GetFloat(int32_t index) const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ return static_cast<FX_FLOAT>((*lpArguments->m_pInfo)[index]->NumberValue());
+}
+
+CFX_ByteString CFXJSE_Arguments::GetUTF8String(int32_t index) const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ v8::Local<v8::String> hString = (*lpArguments->m_pInfo)[index]->ToString();
+ v8::String::Utf8Value szStringVal(hString);
+ return CFX_ByteString(*szStringVal);
+}
+
+void* CFXJSE_Arguments::GetObject(int32_t index, FXJSE_HCLASS hClass) const {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ v8::Local<v8::Value> hValue = (*lpArguments->m_pInfo)[index];
+ ASSERT(!hValue.IsEmpty());
+ if (!hValue->IsObject()) {
+ return NULL;
+ }
+ CFXJSE_Class* lpClass = reinterpret_cast<CFXJSE_Class*>(hClass);
+ return FXJSE_RetrieveObjectBinding(hValue.As<v8::Object>(), lpClass);
+}
+
+FXJSE_HVALUE CFXJSE_Arguments::GetReturnValue() {
+ const CFXJSE_ArgumentsImpl* lpArguments =
+ reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
+ return reinterpret_cast<FXJSE_HVALUE>(lpArguments->m_pRetValue);
+}
+static void FXJSE_Context_GlobalObjToString(
+ const v8::FunctionCallbackInfo<v8::Value>& info) {
+ const FXJSE_CLASS* lpClass =
+ static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
+ if (!lpClass) {
+ return;
+ }
+ if (info.This() == info.Holder() && lpClass->name) {
+ CFX_ByteString szStringVal;
+ szStringVal.Format("[object %s]", lpClass->name);
+ info.GetReturnValue().Set(v8::String::NewFromUtf8(
+ info.GetIsolate(), (const FX_CHAR*)szStringVal,
+ v8::String::kNormalString, szStringVal.GetLength()));
+ } else {
+ v8::Local<v8::String> local_str =
+ info.This()
+ ->ObjectProtoToString(info.GetIsolate()->GetCurrentContext())
+ .FromMaybe(v8::Local<v8::String>());
+ info.GetReturnValue().Set(local_str);
+ }
+}
+
+CFXJSE_Class* CFXJSE_Class::Create(CFXJSE_Context* lpContext,
+ const FXJSE_CLASS* lpClassDefinition,
+ FX_BOOL bIsJSGlobal) {
+ if (!lpContext || !lpClassDefinition) {
+ return NULL;
+ }
+ CFXJSE_Class* pClass =
+ GetClassFromContext(lpContext, lpClassDefinition->name);
+ if (pClass) {
+ return pClass;
+ }
+ v8::Isolate* pIsolate = lpContext->m_pIsolate;
+ pClass = new CFXJSE_Class(lpContext);
+ pClass->m_szClassName = lpClassDefinition->name;
+ pClass->m_lpClassDefinition = lpClassDefinition;
+ CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate);
+ v8::Local<v8::FunctionTemplate> hFunctionTemplate = v8::FunctionTemplate::New(
+ pIsolate, bIsJSGlobal ? 0 : FXJSE_V8ConstructorCallback_Wrapper,
+ v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition)));
+ hFunctionTemplate->SetClassName(
+ v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name));
+ hFunctionTemplate->InstanceTemplate()->SetInternalFieldCount(1);
+ v8::Local<v8::ObjectTemplate> hObjectTemplate =
+ hFunctionTemplate->InstanceTemplate();
+ SetUpNamedPropHandler(pIsolate, hObjectTemplate, lpClassDefinition);
+
+ if (lpClassDefinition->propNum) {
+ for (int32_t i = 0; i < lpClassDefinition->propNum; i++) {
+ hObjectTemplate->SetNativeDataProperty(
+ v8::String::NewFromUtf8(pIsolate,
+ lpClassDefinition->properties[i].name),
+ lpClassDefinition->properties[i].getProc
+ ? FXJSE_V8GetterCallback_Wrapper
+ : NULL,
+ lpClassDefinition->properties[i].setProc
+ ? FXJSE_V8SetterCallback_Wrapper
+ : NULL,
+ v8::External::New(pIsolate, const_cast<FXJSE_PROPERTY*>(
+ lpClassDefinition->properties + i)),
+ static_cast<v8::PropertyAttribute>(v8::DontDelete));
+ }
+ }
+ if (lpClassDefinition->methNum) {
+ for (int32_t i = 0; i < lpClassDefinition->methNum; i++) {
+ hObjectTemplate->Set(
+ v8::String::NewFromUtf8(pIsolate, lpClassDefinition->methods[i].name),
+ v8::FunctionTemplate::New(
+ pIsolate, FXJSE_V8FunctionCallback_Wrapper,
+ v8::External::New(pIsolate, const_cast<FXJSE_FUNCTION*>(
+ lpClassDefinition->methods + i))),
+ static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
+ }
+ }
+ if (lpClassDefinition->constructor) {
+ if (bIsJSGlobal) {
+ hObjectTemplate->Set(
+ v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name),
+ v8::FunctionTemplate::New(
+ pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper,
+ v8::External::New(pIsolate,
+ const_cast<FXJSE_CLASS*>(lpClassDefinition))),
+ static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
+ } else {
+ v8::Local<v8::Context> hLocalContext =
+ v8::Local<v8::Context>::New(pIsolate, lpContext->m_hContext);
+ FXJSE_GetGlobalObjectFromContext(hLocalContext)
+ ->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name),
+ v8::Function::New(
+ pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper,
+ v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(
+ lpClassDefinition))));
+ }
+ }
+ if (bIsJSGlobal) {
+ hObjectTemplate->Set(
+ v8::String::NewFromUtf8(pIsolate, "toString"),
+ v8::FunctionTemplate::New(
+ pIsolate, FXJSE_Context_GlobalObjToString,
+ v8::External::New(pIsolate,
+ const_cast<FXJSE_CLASS*>(lpClassDefinition))));
+ }
+ pClass->m_hTemplate.Reset(lpContext->m_pIsolate, hFunctionTemplate);
+ lpContext->m_rgClasses.Add(pClass);
+ return pClass;
+}
+CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext,
+ const CFX_ByteStringC& szName) {
+ for (int count = pContext->m_rgClasses.GetSize(), i = 0; i < count; i++) {
+ CFXJSE_Class* pClass = pContext->m_rgClasses[i];
+ if (pClass->m_szClassName == szName) {
+ return pClass;
+ }
+ }
+ return NULL;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 09:45:07 +0000