| // Copyright 2017 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 "fxjs/xfa/cjx_tree.h" |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "fxjs/js_resources.h" |
| #include "fxjs/xfa/cfxjse_engine.h" |
| #include "fxjs/xfa/cfxjse_value.h" |
| #include "third_party/base/numerics/safe_conversions.h" |
| #include "xfa/fxfa/parser/cxfa_arraynodelist.h" |
| #include "xfa/fxfa/parser/cxfa_attachnodelist.h" |
| #include "xfa/fxfa/parser/cxfa_document.h" |
| #include "xfa/fxfa/parser/cxfa_node.h" |
| #include "xfa/fxfa/parser/cxfa_object.h" |
| #include "xfa/fxfa/parser/xfa_resolvenode_rs.h" |
| |
| const CJX_MethodSpec CJX_Tree::MethodSpecs[] = { |
| {"resolveNode", resolveNode_static}, |
| {"resolveNodes", resolveNodes_static}}; |
| |
| CJX_Tree::CJX_Tree(CXFA_Object* obj) : CJX_Object(obj) { |
| DefineMethods(MethodSpecs); |
| } |
| |
| CJX_Tree::~CJX_Tree() = default; |
| |
| bool CJX_Tree::DynamicTypeIs(TypeTag eType) const { |
| return eType == static_type__ || ParentType__::DynamicTypeIs(eType); |
| } |
| |
| CJS_Result CJX_Tree::resolveNode( |
| CFX_V8* runtime, |
| const std::vector<v8::Local<v8::Value>>& params) { |
| if (params.size() != 1) |
| return CJS_Result::Failure(JSMessage::kParamError); |
| |
| WideString expression = runtime->ToWideString(params[0]); |
| CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext(); |
| CXFA_Object* refNode = GetXFAObject(); |
| if (refNode->GetElementType() == XFA_Element::Xfa) |
| refNode = pScriptContext->GetThisObject(); |
| |
| uint32_t dwFlag = XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes | |
| XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent | |
| XFA_RESOLVENODE_Siblings; |
| XFA_RESOLVENODE_RS resolveNodeRS; |
| if (!pScriptContext->ResolveObjects(ToNode(refNode), |
| expression.AsStringView(), &resolveNodeRS, |
| dwFlag, nullptr)) { |
| return CJS_Result::Success(runtime->NewNull()); |
| } |
| |
| if (resolveNodeRS.dwFlags == XFA_ResolveNode_RSType_Nodes) { |
| CXFA_Object* pObject = resolveNodeRS.objects.front().Get(); |
| CFXJSE_Value* value = |
| GetDocument()->GetScriptContext()->GetOrCreateJSBindingFromMap(pObject); |
| |
| return CJS_Result::Success( |
| value->DirectGetValue().Get(runtime->GetIsolate())); |
| } |
| |
| if (!resolveNodeRS.script_attribute.callback || |
| resolveNodeRS.script_attribute.eValueType != XFA_ScriptType::Object) { |
| return CJS_Result::Success(runtime->NewNull()); |
| } |
| |
| auto pValue = std::make_unique<CFXJSE_Value>(pScriptContext->GetIsolate()); |
| CJX_Object* jsObject = resolveNodeRS.objects.front()->JSObject(); |
| (*resolveNodeRS.script_attribute.callback)( |
| jsObject, pValue.get(), false, resolveNodeRS.script_attribute.attribute); |
| return CJS_Result::Success( |
| pValue->DirectGetValue().Get(runtime->GetIsolate())); |
| } |
| |
| CJS_Result CJX_Tree::resolveNodes( |
| CFX_V8* runtime, |
| const std::vector<v8::Local<v8::Value>>& params) { |
| if (params.size() != 1) |
| return CJS_Result::Failure(JSMessage::kParamError); |
| |
| CXFA_Object* refNode = GetXFAObject(); |
| if (refNode->GetElementType() == XFA_Element::Xfa) |
| refNode = GetDocument()->GetScriptContext()->GetThisObject(); |
| |
| CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext(); |
| auto pValue = std::make_unique<CFXJSE_Value>(pScriptContext->GetIsolate()); |
| ResolveNodeList(pValue.get(), runtime->ToWideString(params[0]), |
| XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes | |
| XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent | |
| XFA_RESOLVENODE_Siblings, |
| ToNode(refNode)); |
| return CJS_Result::Success( |
| pValue->DirectGetValue().Get(runtime->GetIsolate())); |
| } |
| |
| void CJX_Tree::all(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| ThrowInvalidPropertyException(); |
| return; |
| } |
| |
| uint32_t dwFlag = XFA_RESOLVENODE_Siblings | XFA_RESOLVENODE_ALL; |
| WideString wsExpression = GetAttribute(XFA_Attribute::Name) + L"[*]"; |
| ResolveNodeList(pValue, wsExpression, dwFlag, nullptr); |
| } |
| |
| void CJX_Tree::classAll(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| ThrowInvalidPropertyException(); |
| return; |
| } |
| |
| WideString wsExpression = |
| L"#" + WideString::FromASCII(GetXFAObject()->GetClassName()) + L"[*]"; |
| ResolveNodeList(pValue, wsExpression, |
| XFA_RESOLVENODE_Siblings | XFA_RESOLVENODE_ALL, nullptr); |
| } |
| |
| void CJX_Tree::nodes(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| WideString wsMessage = L"Unable to set "; |
| FXJSE_ThrowMessage(wsMessage.ToUTF8().AsStringView()); |
| return; |
| } |
| |
| CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext(); |
| CXFA_AttachNodeList* pNodeList = |
| new CXFA_AttachNodeList(GetDocument(), ToNode(GetXFAObject())); |
| pValue->SetHostObject(pNodeList, pScriptContext->GetJseNormalClass()); |
| } |
| |
| void CJX_Tree::parent(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| ThrowInvalidPropertyException(); |
| return; |
| } |
| |
| CXFA_Node* pParent = ToNode(GetXFAObject())->GetParent(); |
| if (!pParent) { |
| pValue->SetNull(); |
| return; |
| } |
| |
| pValue->Assign( |
| GetDocument()->GetScriptContext()->GetOrCreateJSBindingFromMap(pParent)); |
| } |
| |
| void CJX_Tree::index(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| ThrowInvalidPropertyException(); |
| return; |
| } |
| |
| CXFA_Node* pNode = ToNode(GetXFAObject()); |
| size_t iIndex = pNode ? pNode->GetIndexByName() : 0; |
| pValue->SetInteger(pdfium::base::checked_cast<int32_t>(iIndex)); |
| } |
| |
| void CJX_Tree::classIndex(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| ThrowInvalidPropertyException(); |
| return; |
| } |
| |
| CXFA_Node* pNode = ToNode(GetXFAObject()); |
| size_t iIndex = pNode ? pNode->GetIndexByClassName() : 0; |
| pValue->SetInteger(pdfium::base::checked_cast<int32_t>(iIndex)); |
| } |
| |
| void CJX_Tree::somExpression(CFXJSE_Value* pValue, |
| bool bSetting, |
| XFA_Attribute eAttribute) { |
| if (bSetting) { |
| ThrowInvalidPropertyException(); |
| return; |
| } |
| |
| WideString wsSOMExpression = GetXFAObject()->GetSOMExpression(); |
| pValue->SetString(wsSOMExpression.ToUTF8().AsStringView()); |
| } |
| |
| void CJX_Tree::ResolveNodeList(CFXJSE_Value* pValue, |
| WideString wsExpression, |
| uint32_t dwFlag, |
| CXFA_Node* refNode) { |
| if (!refNode) |
| refNode = ToNode(GetXFAObject()); |
| |
| XFA_RESOLVENODE_RS resolveNodeRS; |
| CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext(); |
| pScriptContext->ResolveObjects(refNode, wsExpression.AsStringView(), |
| &resolveNodeRS, dwFlag, nullptr); |
| CXFA_ArrayNodeList* pNodeList = new CXFA_ArrayNodeList(GetDocument()); |
| if (resolveNodeRS.dwFlags == XFA_ResolveNode_RSType_Nodes) { |
| for (auto& pObject : resolveNodeRS.objects) { |
| if (pObject->IsNode()) |
| pNodeList->Append(pObject->AsNode()); |
| } |
| } else { |
| if (resolveNodeRS.script_attribute.callback && |
| resolveNodeRS.script_attribute.eValueType == XFA_ScriptType::Object) { |
| for (auto& pObject : resolveNodeRS.objects) { |
| auto innerValue = |
| std::make_unique<CFXJSE_Value>(pScriptContext->GetIsolate()); |
| CJX_Object* jsObject = pObject->JSObject(); |
| (*resolveNodeRS.script_attribute.callback)( |
| jsObject, innerValue.get(), false, |
| resolveNodeRS.script_attribute.attribute); |
| CXFA_Object* obj = CFXJSE_Engine::ToObject(innerValue.get()); |
| if (obj->IsNode()) |
| pNodeList->Append(obj->AsNode()); |
| } |
| } |
| } |
| pValue->SetHostObject(pNodeList, pScriptContext->GetJseNormalClass()); |
| } |