// Copyright 2017 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fxjs/xfa/cjx_tree.h"
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#include <vector>
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#include "fxjs/cfxjse_engine.h"
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#include "fxjs/cfxjse_value.h"
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#include "fxjs/js_resources.h"
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#include "third_party/base/ptr_util.h"
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#include "xfa/fxfa/parser/cxfa_arraynodelist.h"
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#include "xfa/fxfa/parser/cxfa_attachnodelist.h"
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#include "xfa/fxfa/parser/cxfa_document.h"
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#include "xfa/fxfa/parser/cxfa_node.h"
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#include "xfa/fxfa/parser/cxfa_object.h"
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#include "xfa/fxfa/parser/xfa_resolvenode_rs.h"
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const CJX_MethodSpec CJX_Tree::MethodSpecs[] = {
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{"resolveNode", resolveNode_static},
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{"resolveNodes", resolveNodes_static}};
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CJX_Tree::CJX_Tree(CXFA_Object* obj) : CJX_Object(obj) {
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DefineMethods(MethodSpecs, FX_ArraySize(MethodSpecs));
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}
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CJX_Tree::~CJX_Tree() {}
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CJS_Return CJX_Tree::resolveNode(
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CJS_V8* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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if (params.size() != 1)
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return CJS_Return(JSGetStringFromID(JSMessage::kParamError));
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WideString expression = runtime->ToWideString(params[0]);
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CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
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if (!pScriptContext)
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return CJS_Return(true);
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CXFA_Object* refNode = GetXFAObject();
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if (refNode->GetElementType() == XFA_Element::Xfa)
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refNode = pScriptContext->GetThisObject();
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uint32_t dwFlag = XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes |
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XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent |
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XFA_RESOLVENODE_Siblings;
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XFA_RESOLVENODE_RS resolveNodeRS;
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if (!pScriptContext->ResolveObjects(ToNode(refNode),
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expression.AsStringView(), &resolveNodeRS,
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dwFlag, nullptr)) {
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return CJS_Return(runtime->NewNull());
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}
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if (resolveNodeRS.dwFlags == XFA_ResolveNode_RSType_Nodes) {
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CXFA_Object* pObject = resolveNodeRS.objects.front();
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CFXJSE_Value* value =
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GetDocument()->GetScriptContext()->GetJSValueFromMap(pObject);
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if (!value)
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return CJS_Return(runtime->NewNull());
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return CJS_Return(value->DirectGetValue().Get(runtime->GetIsolate()));
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}
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const XFA_SCRIPTATTRIBUTEINFO* lpAttributeInfo =
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resolveNodeRS.pScriptAttribute;
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if (!lpAttributeInfo ||
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lpAttributeInfo->eValueType != XFA_ScriptType::Object) {
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return CJS_Return(runtime->NewNull());
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}
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auto pValue = pdfium::MakeUnique<CFXJSE_Value>(pScriptContext->GetIsolate());
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CJX_Object* jsObject = resolveNodeRS.objects.front()->JSObject();
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(jsObject->*(lpAttributeInfo->callback))(pValue.get(), false,
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lpAttributeInfo->attribute);
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return CJS_Return(pValue->DirectGetValue().Get(runtime->GetIsolate()));
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}
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CJS_Return CJX_Tree::resolveNodes(
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CJS_V8* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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if (params.size() != 1)
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return CJS_Return(JSGetStringFromID(JSMessage::kParamError));
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CXFA_Object* refNode = GetXFAObject();
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if (refNode->GetElementType() == XFA_Element::Xfa)
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refNode = GetDocument()->GetScriptContext()->GetThisObject();
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CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
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if (!pScriptContext)
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return CJS_Return(true);
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auto pValue = pdfium::MakeUnique<CFXJSE_Value>(pScriptContext->GetIsolate());
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ResolveNodeList(pValue.get(), runtime->ToWideString(params[0]),
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XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes |
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XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent |
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XFA_RESOLVENODE_Siblings,
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ToNode(refNode));
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return CJS_Return(pValue->DirectGetValue().Get(runtime->GetIsolate()));
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}
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void CJX_Tree::all(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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if (bSetting) {
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ThrowInvalidPropertyException();
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return;
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}
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uint32_t dwFlag = XFA_RESOLVENODE_Siblings | XFA_RESOLVENODE_ALL;
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WideString wsExpression = GetAttribute(XFA_Attribute::Name) + L"[*]";
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ResolveNodeList(pValue, wsExpression, dwFlag, nullptr);
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}
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void CJX_Tree::classAll(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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if (bSetting) {
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ThrowInvalidPropertyException();
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return;
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}
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WideString wsExpression = L"#" + GetXFAObject()->GetClassName() + L"[*]";
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ResolveNodeList(pValue, wsExpression,
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XFA_RESOLVENODE_Siblings | XFA_RESOLVENODE_ALL, nullptr);
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}
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void CJX_Tree::name(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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Script_Attribute_String(pValue, bSetting, eAttribute);
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}
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void CJX_Tree::nodes(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
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if (!pScriptContext)
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return;
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if (bSetting) {
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WideString wsMessage = L"Unable to set ";
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FXJSE_ThrowMessage(wsMessage.UTF8Encode().AsStringView());
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return;
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}
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CXFA_AttachNodeList* pNodeList =
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new CXFA_AttachNodeList(GetDocument(), ToNode(GetXFAObject()));
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pValue->SetObject(pNodeList, pScriptContext->GetJseNormalClass());
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}
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void CJX_Tree::parent(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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if (bSetting) {
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ThrowInvalidPropertyException();
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return;
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}
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CXFA_Node* pParent = ToNode(GetXFAObject())->GetParent();
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if (!pParent) {
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pValue->SetNull();
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return;
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}
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pValue->Assign(GetDocument()->GetScriptContext()->GetJSValueFromMap(pParent));
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}
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void CJX_Tree::index(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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if (bSetting) {
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ThrowInvalidPropertyException();
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return;
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}
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pValue->SetInteger(ToNode(GetXFAObject())->GetNodeSameNameIndex());
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}
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void CJX_Tree::classIndex(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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if (bSetting) {
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ThrowInvalidPropertyException();
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return;
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}
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pValue->SetInteger(ToNode(GetXFAObject())->GetNodeSameClassIndex());
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}
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void CJX_Tree::somExpression(CFXJSE_Value* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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if (bSetting) {
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ThrowInvalidPropertyException();
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return;
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}
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WideString wsSOMExpression = GetXFAObject()->GetSOMExpression();
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pValue->SetString(wsSOMExpression.UTF8Encode().AsStringView());
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}
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void CJX_Tree::ResolveNodeList(CFXJSE_Value* pValue,
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WideString wsExpression,
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uint32_t dwFlag,
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CXFA_Node* refNode) {
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CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
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if (!pScriptContext)
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return;
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if (!refNode)
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refNode = ToNode(GetXFAObject());
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XFA_RESOLVENODE_RS resolveNodeRS;
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pScriptContext->ResolveObjects(refNode, wsExpression.AsStringView(),
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&resolveNodeRS, dwFlag, nullptr);
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CXFA_ArrayNodeList* pNodeList = new CXFA_ArrayNodeList(GetDocument());
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if (resolveNodeRS.dwFlags == XFA_ResolveNode_RSType_Nodes) {
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for (CXFA_Object* pObject : resolveNodeRS.objects) {
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if (pObject->IsNode())
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pNodeList->Append(pObject->AsNode());
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}
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} else {
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if (resolveNodeRS.pScriptAttribute &&
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resolveNodeRS.pScriptAttribute->eValueType == XFA_ScriptType::Object) {
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for (CXFA_Object* pObject : resolveNodeRS.objects) {
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auto pValue =
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pdfium::MakeUnique<CFXJSE_Value>(pScriptContext->GetIsolate());
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CJX_Object* jsObject = pObject->JSObject();
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(jsObject->*(resolveNodeRS.pScriptAttribute->callback))(
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pValue.get(), false, resolveNodeRS.pScriptAttribute->attribute);
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CXFA_Object* obj = CFXJSE_Engine::ToObject(pValue.get(), nullptr);
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if (obj->IsNode())
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pNodeList->Append(obj->AsNode());
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}
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}
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}
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pValue->SetObject(pNodeList, pScriptContext->GetJseNormalClass());
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}
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