diff options
Diffstat (limited to 'fxjse/context.cpp')
| -rw-r--r-- | fxjse/context.cpp | 230 |
1 files changed, 0 insertions, 230 deletions
diff --git a/fxjse/context.cpp b/fxjse/context.cpp deleted file mode 100644 index 9c43830997..0000000000 --- a/fxjse/context.cpp +++ /dev/null @@ -1,230 +0,0 @@ -// 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/context.h" - -#include "fxjse/include/cfxjse_class.h" -#include "fxjse/include/cfxjse_value.h" -#include "fxjse/scope_inline.h" - -namespace { - -const FX_CHAR szCompatibleModeScript[] = - "(function(global, list) {\n" - " 'use strict';\n" - " var objname;\n" - " for (objname in list) {\n" - " var globalobj = global[objname];\n" - " if (globalobj) {\n" - " list[objname].forEach(function(name) {\n" - " if (!globalobj[name]) {\n" - " Object.defineProperty(globalobj, name, {\n" - " writable: true,\n" - " enumerable: false,\n" - " value: (function(obj) {\n" - " if (arguments.length === 0) {\n" - " throw new TypeError('missing argument 0 when calling " - " function ' + objname + '.' + name);\n" - " }\n" - " return globalobj.prototype[name].apply(obj, " - " Array.prototype.slice.call(arguments, 1));\n" - " })\n" - " });\n" - " }\n" - " });\n" - " }\n" - " }\n" - "}(this, {String: ['substr', 'toUpperCase']}));"; - -} // namespace - -v8::Local<v8::Object> FXJSE_GetGlobalObjectFromContext( - const v8::Local<v8::Context>& hContext) { - return hContext->Global()->GetPrototype().As<v8::Object>(); -} - -void FXJSE_UpdateObjectBinding(v8::Local<v8::Object>& hObject, - CFXJSE_HostObject* lpNewBinding) { - ASSERT(!hObject.IsEmpty()); - ASSERT(hObject->InternalFieldCount() > 0); - hObject->SetAlignedPointerInInternalField(0, - static_cast<void*>(lpNewBinding)); -} - -CFXJSE_HostObject* FXJSE_RetrieveObjectBinding( - const v8::Local<v8::Object>& hJSObject, - CFXJSE_Class* lpClass) { - ASSERT(!hJSObject.IsEmpty()); - if (!hJSObject->IsObject()) { - return nullptr; - } - v8::Local<v8::Object> hObject = hJSObject; - if (hObject->InternalFieldCount() == 0) { - v8::Local<v8::Value> hProtoObject = hObject->GetPrototype(); - if (hProtoObject.IsEmpty() || !hProtoObject->IsObject()) { - return nullptr; - } - hObject = hProtoObject.As<v8::Object>(); - if (hObject->InternalFieldCount() == 0) { - return nullptr; - } - } - if (lpClass) { - v8::Local<v8::FunctionTemplate> hClass = - v8::Local<v8::FunctionTemplate>::New( - lpClass->GetContext()->GetRuntime(), lpClass->GetTemplate()); - if (!hClass->HasInstance(hObject)) { - return nullptr; - } - } - return static_cast<CFXJSE_HostObject*>( - hObject->GetAlignedPointerFromInternalField(0)); -} - -v8::Local<v8::Object> FXJSE_CreateReturnValue(v8::Isolate* pIsolate, - v8::TryCatch& trycatch) { - v8::Local<v8::Object> hReturnValue = v8::Object::New(pIsolate); - if (trycatch.HasCaught()) { - v8::Local<v8::Value> hException = trycatch.Exception(); - v8::Local<v8::Message> hMessage = trycatch.Message(); - if (hException->IsObject()) { - v8::Local<v8::Value> hValue; - hValue = hException.As<v8::Object>()->Get( - v8::String::NewFromUtf8(pIsolate, "name")); - if (hValue->IsString() || hValue->IsStringObject()) { - hReturnValue->Set(0, hValue); - } else { - hReturnValue->Set(0, v8::String::NewFromUtf8(pIsolate, "Error")); - } - hValue = hException.As<v8::Object>()->Get( - v8::String::NewFromUtf8(pIsolate, "message")); - if (hValue->IsString() || hValue->IsStringObject()) { - hReturnValue->Set(1, hValue); - } else { - hReturnValue->Set(1, hMessage->Get()); - } - } else { - hReturnValue->Set(0, v8::String::NewFromUtf8(pIsolate, "Error")); - hReturnValue->Set(1, hMessage->Get()); - } - hReturnValue->Set(2, hException); - hReturnValue->Set(3, v8::Integer::New(pIsolate, hMessage->GetLineNumber())); - hReturnValue->Set(4, hMessage->GetSourceLine()); - v8::Maybe<int32_t> maybe_int = - hMessage->GetStartColumn(pIsolate->GetCurrentContext()); - hReturnValue->Set(5, v8::Integer::New(pIsolate, maybe_int.FromMaybe(0))); - maybe_int = hMessage->GetEndColumn(pIsolate->GetCurrentContext()); - hReturnValue->Set(6, v8::Integer::New(pIsolate, maybe_int.FromMaybe(0))); - } - return hReturnValue; -} - -CFXJSE_Context* CFXJSE_Context::Create( - v8::Isolate* pIsolate, - const FXJSE_CLASS_DESCRIPTOR* lpGlobalClass, - CFXJSE_HostObject* lpGlobalObject) { - CFXJSE_ScopeUtil_IsolateHandle scope(pIsolate); - CFXJSE_Context* pContext = new CFXJSE_Context(pIsolate); - CFXJSE_Class* lpGlobalClassObj = NULL; - v8::Local<v8::ObjectTemplate> hObjectTemplate; - if (lpGlobalClass) { - lpGlobalClassObj = CFXJSE_Class::Create(pContext, lpGlobalClass, TRUE); - ASSERT(lpGlobalClassObj); - v8::Local<v8::FunctionTemplate> hFunctionTemplate = - v8::Local<v8::FunctionTemplate>::New(pIsolate, - lpGlobalClassObj->m_hTemplate); - hObjectTemplate = hFunctionTemplate->InstanceTemplate(); - } else { - hObjectTemplate = v8::ObjectTemplate::New(pIsolate); - hObjectTemplate->SetInternalFieldCount(1); - } - hObjectTemplate->Set( - v8::Symbol::GetToStringTag(pIsolate), - v8::String::NewFromUtf8(pIsolate, "global", v8::NewStringType::kNormal) - .ToLocalChecked()); - v8::Local<v8::Context> hNewContext = - v8::Context::New(pIsolate, NULL, hObjectTemplate); - v8::Local<v8::Context> hRootContext = v8::Local<v8::Context>::New( - pIsolate, CFXJSE_RuntimeData::Get(pIsolate)->m_hRootContext); - hNewContext->SetSecurityToken(hRootContext->GetSecurityToken()); - v8::Local<v8::Object> hGlobalObject = - FXJSE_GetGlobalObjectFromContext(hNewContext); - FXJSE_UpdateObjectBinding(hGlobalObject, lpGlobalObject); - pContext->m_hContext.Reset(pIsolate, hNewContext); - return pContext; -} - -CFXJSE_Context::CFXJSE_Context(v8::Isolate* pIsolate) : m_pIsolate(pIsolate) {} - -CFXJSE_Context::~CFXJSE_Context() {} - -std::unique_ptr<CFXJSE_Value> CFXJSE_Context::GetGlobalObject() { - std::unique_ptr<CFXJSE_Value> pValue(new CFXJSE_Value(m_pIsolate)); - - CFXJSE_ScopeUtil_IsolateHandleContext scope(this); - v8::Local<v8::Context> hContext = - v8::Local<v8::Context>::New(m_pIsolate, m_hContext); - v8::Local<v8::Object> hGlobalObject = hContext->Global(); - pValue->ForceSetValue(hGlobalObject); - - return pValue; -} - -void CFXJSE_Context::EnableCompatibleMode() { - ExecuteScript(szCompatibleModeScript, nullptr, nullptr); -} - -FX_BOOL CFXJSE_Context::ExecuteScript(const FX_CHAR* szScript, - CFXJSE_Value* lpRetValue, - CFXJSE_Value* lpNewThisObject) { - CFXJSE_ScopeUtil_IsolateHandleContext scope(this); - v8::TryCatch trycatch(m_pIsolate); - v8::Local<v8::String> hScriptString = - v8::String::NewFromUtf8(m_pIsolate, szScript); - if (lpNewThisObject == NULL) { - v8::Local<v8::Script> hScript = v8::Script::Compile(hScriptString); - if (!trycatch.HasCaught()) { - v8::Local<v8::Value> hValue = hScript->Run(); - if (!trycatch.HasCaught()) { - if (lpRetValue) { - lpRetValue->m_hValue.Reset(m_pIsolate, hValue); - } - return TRUE; - } - } - if (lpRetValue) { - lpRetValue->m_hValue.Reset(m_pIsolate, - FXJSE_CreateReturnValue(m_pIsolate, trycatch)); - } - return FALSE; - } else { - v8::Local<v8::Value> hNewThis = - v8::Local<v8::Value>::New(m_pIsolate, lpNewThisObject->m_hValue); - ASSERT(!hNewThis.IsEmpty()); - v8::Local<v8::Script> hWrapper = - v8::Script::Compile(v8::String::NewFromUtf8( - m_pIsolate, "(function () { return eval(arguments[0]); })")); - v8::Local<v8::Value> hWrapperValue = hWrapper->Run(); - ASSERT(hWrapperValue->IsFunction()); - v8::Local<v8::Function> hWrapperFn = hWrapperValue.As<v8::Function>(); - if (!trycatch.HasCaught()) { - v8::Local<v8::Value> rgArgs[] = {hScriptString}; - v8::Local<v8::Value> hValue = - hWrapperFn->Call(hNewThis.As<v8::Object>(), 1, rgArgs); - if (!trycatch.HasCaught()) { - if (lpRetValue) { - lpRetValue->m_hValue.Reset(m_pIsolate, hValue); - } - return TRUE; - } - } - if (lpRetValue) { - lpRetValue->m_hValue.Reset(m_pIsolate, - FXJSE_CreateReturnValue(m_pIsolate, trycatch)); - } - return FALSE; - } -} |