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// 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 <vector>
#include "fxjs/cfxjse_engine.h"
#include "fxjs/cfxjse_value.h"
#include "fxjs/js_resources.h"
#include "third_party/base/ptr_util.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},
{"", nullptr}};
CJX_Tree::CJX_Tree(CXFA_Object* obj) : CJX_Object(obj) {
DefineMethods(MethodSpecs);
}
CJX_Tree::~CJX_Tree() {}
CJS_Return CJX_Tree::resolveNode(
CJS_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.size() != 1)
return CJS_Return(JSGetStringFromID(JSMessage::kParamError));
WideString expression = runtime->ToWideString(params[0]);
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
if (!pScriptContext)
return CJS_Return(true);
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_Return(runtime->NewNull());
}
if (resolveNodeRS.dwFlags == XFA_ResolveNode_RSType_Nodes) {
CXFA_Object* pObject = resolveNodeRS.objects.front();
CFXJSE_Value* value =
GetDocument()->GetScriptContext()->GetJSValueFromMap(pObject);
if (!value)
return CJS_Return(runtime->NewNull());
return CJS_Return(value->DirectGetValue().Get(runtime->GetIsolate()));
}
const XFA_SCRIPTATTRIBUTEINFO* lpAttributeInfo =
resolveNodeRS.pScriptAttribute;
if (!lpAttributeInfo ||
lpAttributeInfo->eValueType != XFA_ScriptType::Object) {
return CJS_Return(runtime->NewNull());
}
auto pValue = pdfium::MakeUnique<CFXJSE_Value>(pScriptContext->GetIsolate());
CJX_Object* jsObject = resolveNodeRS.objects.front()->JSObject();
(jsObject->*(lpAttributeInfo->callback))(pValue.get(), false,
lpAttributeInfo->attribute);
return CJS_Return(pValue->DirectGetValue().Get(runtime->GetIsolate()));
}
CJS_Return CJX_Tree::resolveNodes(
CJS_V8* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.size() != 1)
return CJS_Return(JSGetStringFromID(JSMessage::kParamError));
CXFA_Object* refNode = GetXFAObject();
if (refNode->GetElementType() == XFA_Element::Xfa)
refNode = GetDocument()->GetScriptContext()->GetThisObject();
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
if (!pScriptContext)
return CJS_Return(true);
auto pValue = pdfium::MakeUnique<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_Return(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"#" + 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) {
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
if (!pScriptContext)
return;
if (bSetting) {
WideString wsMessage = L"Unable to set ";
FXJSE_ThrowMessage(wsMessage.UTF8Encode().AsStringView());
return;
}
CXFA_AttachNodeList* pNodeList =
new CXFA_AttachNodeList(GetDocument(), ToNode(GetXFAObject()));
pValue->SetObject(pNodeList, pScriptContext->GetJseNormalClass());
}
void CJX_Tree::parent(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowInvalidPropertyException();
return;
}
CXFA_Node* pParent = ToNode(GetXFAObject())->GetNodeItem(XFA_NODEITEM_Parent);
if (!pParent) {
pValue->SetNull();
return;
}
pValue->Assign(GetDocument()->GetScriptContext()->GetJSValueFromMap(pParent));
}
void CJX_Tree::index(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowInvalidPropertyException();
return;
}
pValue->SetInteger(ToNode(GetXFAObject())->GetNodeSameNameIndex());
}
void CJX_Tree::classIndex(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowInvalidPropertyException();
return;
}
pValue->SetInteger(ToNode(GetXFAObject())->GetNodeSameClassIndex());
}
void CJX_Tree::somExpression(CFXJSE_Value* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowInvalidPropertyException();
return;
}
WideString wsSOMExpression;
GetXFAObject()->GetSOMExpression(wsSOMExpression);
pValue->SetString(wsSOMExpression.UTF8Encode().AsStringView());
}
void CJX_Tree::ResolveNodeList(CFXJSE_Value* pValue,
WideString wsExpression,
uint32_t dwFlag,
CXFA_Node* refNode) {
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
if (!pScriptContext)
return;
if (!refNode)
refNode = ToNode(GetXFAObject());
XFA_RESOLVENODE_RS resolveNodeRS;
pScriptContext->ResolveObjects(refNode, wsExpression.AsStringView(),
&resolveNodeRS, dwFlag, nullptr);
CXFA_ArrayNodeList* pNodeList = new CXFA_ArrayNodeList(GetDocument());
if (resolveNodeRS.dwFlags == XFA_ResolveNode_RSType_Nodes) {
for (CXFA_Object* pObject : resolveNodeRS.objects) {
if (pObject->IsNode())
pNodeList->Append(pObject->AsNode());
}
} else {
if (resolveNodeRS.pScriptAttribute &&
resolveNodeRS.pScriptAttribute->eValueType == XFA_ScriptType::Object) {
for (CXFA_Object* pObject : resolveNodeRS.objects) {
auto pValue =
pdfium::MakeUnique<CFXJSE_Value>(pScriptContext->GetIsolate());
CJX_Object* jsObject = pObject->JSObject();
(jsObject->*(resolveNodeRS.pScriptAttribute->callback))(
pValue.get(), false, resolveNodeRS.pScriptAttribute->attribute);
CXFA_Object* obj = CFXJSE_Engine::ToObject(pValue.get(), nullptr);
if (obj->IsNode())
pNodeList->Append(obj->AsNode());
}
}
}
pValue->SetObject(pNodeList, pScriptContext->GetJseNormalClass());
}
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