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unplugged-system/external/pdfium/fxjs/xfa/cjx_hostpseudomodel.cpp

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// Copyright 2017 The PDFium Authors
// 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_hostpseudomodel.h"
#include <vector>
#include "fxjs/fxv8.h"
#include "fxjs/js_resources.h"
#include "fxjs/xfa/cfxjse_engine.h"
#include "third_party/base/check.h"
#include "v8/include/v8-object.h"
#include "xfa/fxfa/cxfa_ffdoc.h"
#include "xfa/fxfa/cxfa_ffnotify.h"
#include "xfa/fxfa/parser/cscript_hostpseudomodel.h"
#include "xfa/fxfa/parser/cxfa_node.h"
namespace {
size_t FilterName(WideStringView wsExpression,
size_t nStart,
WideString& wsFilter) {
const size_t nLength = wsExpression.GetLength();
if (nStart >= nLength)
return nLength;
size_t nCount = 0;
{
// Span's lifetime must end before ReleaseBuffer() below.
pdfium::span<wchar_t> pBuf = wsFilter.GetBuffer(nLength - nStart);
const wchar_t* pSrc = wsExpression.unterminated_c_str();
while (nStart < nLength) {
wchar_t wCur = pSrc[nStart++];
if (wCur == ',')
break;
pBuf[nCount++] = wCur;
}
}
wsFilter.ReleaseBuffer(nCount);
wsFilter.Trim();
return nStart;
}
} // namespace
const CJX_MethodSpec CJX_HostPseudoModel::MethodSpecs[] = {
{"beep", beep_static},
{"documentCountInBatch", documentCountInBatch_static},
{"documentInBatch", documentInBatch_static},
{"exportData", exportData_static},
{"getFocus", getFocus_static},
{"gotoURL", gotoURL_static},
{"importData", importData_static},
{"messageBox", messageBox_static},
{"openList", openList_static},
{"pageDown", pageDown_static},
{"pageUp", pageUp_static},
{"print", print_static},
{"resetData", resetData_static},
{"response", response_static},
{"setFocus", setFocus_static}};
CJX_HostPseudoModel::CJX_HostPseudoModel(CScript_HostPseudoModel* model)
: CJX_Object(model) {
DefineMethods(MethodSpecs);
}
CJX_HostPseudoModel::~CJX_HostPseudoModel() = default;
bool CJX_HostPseudoModel::DynamicTypeIs(TypeTag eType) const {
return eType == static_type__ || ParentType__::DynamicTypeIs(eType);
}
void CJX_HostPseudoModel::appType(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
if (bSetting) {
ThrowInvalidPropertyException(pIsolate);
return;
}
*pValue = fxv8::NewStringHelper(pIsolate, "Exchange");
}
void CJX_HostPseudoModel::calculationsEnabled(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
if (bSetting) {
hDoc->SetCalculationsEnabled(
fxv8::ReentrantToBooleanHelper(pIsolate, *pValue));
return;
}
*pValue = fxv8::NewBooleanHelper(pIsolate, hDoc->IsCalculationsEnabled());
}
void CJX_HostPseudoModel::currentPage(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
if (bSetting) {
hDoc->SetCurrentPage(fxv8::ReentrantToInt32Helper(pIsolate, *pValue));
return;
}
*pValue = fxv8::NewNumberHelper(pIsolate, hDoc->GetCurrentPage());
}
void CJX_HostPseudoModel::language(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
if (bSetting) {
ThrowException(pIsolate,
WideString::FromASCII("Unable to set language value."));
return;
}
ByteString lang = pNotify->GetAppProvider()->GetLanguage().ToUTF8();
*pValue = fxv8::NewStringHelper(pIsolate, lang.AsStringView());
}
void CJX_HostPseudoModel::numPages(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
if (bSetting) {
ThrowException(pIsolate,
WideString::FromASCII("Unable to set numPages value."));
return;
}
*pValue = fxv8::NewNumberHelper(pIsolate, hDoc->CountPages());
}
void CJX_HostPseudoModel::platform(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
if (bSetting) {
ThrowException(pIsolate,
WideString::FromASCII("Unable to set platform value."));
return;
}
ByteString plat = pNotify->GetAppProvider()->GetPlatform().ToUTF8();
*pValue = fxv8::NewStringHelper(pIsolate, plat.AsStringView());
}
void CJX_HostPseudoModel::title(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return;
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
if (bSetting) {
hDoc->SetTitle(fxv8::ReentrantToWideStringHelper(pIsolate, *pValue));
return;
}
ByteString bsTitle = hDoc->GetTitle().ToUTF8();
*pValue = fxv8::NewStringHelper(pIsolate, bsTitle.AsStringView());
}
void CJX_HostPseudoModel::validationsEnabled(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
if (bSetting) {
hDoc->SetValidationsEnabled(
fxv8::ReentrantToBooleanHelper(pIsolate, *pValue));
return;
}
*pValue = fxv8::NewBooleanHelper(pIsolate, hDoc->IsValidationsEnabled());
}
void CJX_HostPseudoModel::variation(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return;
if (bSetting) {
ThrowException(pIsolate,
WideString::FromASCII("Unable to set variation value."));
return;
}
*pValue = fxv8::NewStringHelper(pIsolate, "Full");
}
void CJX_HostPseudoModel::version(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
if (bSetting) {
ThrowException(pIsolate,
WideString::FromASCII("Unable to set version value."));
return;
}
*pValue = fxv8::NewStringHelper(pIsolate, "11");
}
void CJX_HostPseudoModel::name(v8::Isolate* pIsolate,
v8::Local<v8::Value>* pValue,
bool bSetting,
XFA_Attribute eAttribute) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return;
if (bSetting) {
ThrowInvalidPropertyException(pIsolate);
return;
}
ByteString bsName = pNotify->GetAppProvider()->GetAppName().ToUTF8();
*pValue = fxv8::NewStringHelper(pIsolate, bsName.AsStringView());
}
CJS_Result CJX_HostPseudoModel::gotoURL(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return CJS_Result::Success();
if (params.size() != 1)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
pNotify->GetFFDoc()->GotoURL(runtime->ToWideString(params[0]));
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::openList(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return CJS_Result::Success();
if (params.size() != 1)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
CXFA_Node* pNode = nullptr;
if (params[0]->IsObject()) {
pNode = ToNode(runtime->ToXFAObject(params[0]));
} else if (params[0]->IsString()) {
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
CXFA_Object* pObject = pScriptContext->GetThisObject();
if (!pObject)
return CJS_Result::Success();
constexpr Mask<XFA_ResolveFlag> kFlags = {XFA_ResolveFlag::kChildren,
XFA_ResolveFlag::kParent,
XFA_ResolveFlag::kSiblings};
absl::optional<CFXJSE_Engine::ResolveResult> maybeResult =
pScriptContext->ResolveObjects(
pObject, runtime->ToWideString(params[0]).AsStringView(), kFlags);
if (!maybeResult.has_value() ||
!maybeResult.value().objects.front()->IsNode()) {
return CJS_Result::Success();
}
pNode = maybeResult.value().objects.front()->AsNode();
}
if (pNode)
pNotify->OpenDropDownList(pNode);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::response(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.empty() || params.size() > 4)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
WideString question;
if (params.size() >= 1)
question = runtime->ToWideString(params[0]);
WideString title;
if (params.size() >= 2)
title = runtime->ToWideString(params[1]);
WideString defaultAnswer;
if (params.size() >= 3)
defaultAnswer = runtime->ToWideString(params[2]);
bool mark = false;
if (params.size() >= 4)
mark = runtime->ToInt32(params[3]) != 0;
WideString answer =
pNotify->GetAppProvider()->Response(question, title, defaultAnswer, mark);
return CJS_Result::Success(
runtime->NewString(answer.ToUTF8().AsStringView()));
}
CJS_Result CJX_HostPseudoModel::documentInBatch(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
return CJS_Result::Success(runtime->NewNumber(0));
}
CJS_Result CJX_HostPseudoModel::resetData(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.size() > 1)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
WideString expression;
if (params.size() >= 1)
expression = runtime->ToWideString(params[0]);
if (expression.IsEmpty()) {
pNotify->ResetData(nullptr);
return CJS_Result::Success();
}
WideString wsName;
CXFA_Node* pNode = nullptr;
size_t nStart = 0;
const size_t nExpLength = expression.GetLength();
while (nStart < nExpLength) {
nStart = FilterName(expression.AsStringView(), nStart, wsName);
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
CXFA_Object* pObject = pScriptContext->GetThisObject();
if (!pObject)
return CJS_Result::Success();
constexpr Mask<XFA_ResolveFlag> kFlags = {XFA_ResolveFlag::kChildren,
XFA_ResolveFlag::kParent,
XFA_ResolveFlag::kSiblings};
absl::optional<CFXJSE_Engine::ResolveResult> maybeResult =
pScriptContext->ResolveObjects(pObject, wsName.AsStringView(), kFlags);
if (!maybeResult.has_value() ||
!maybeResult.value().objects.front()->IsNode())
continue;
pNode = maybeResult.value().objects.front()->AsNode();
pNotify->ResetData(pNode->IsWidgetReady() ? pNode : nullptr);
}
if (!pNode)
pNotify->ResetData(nullptr);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::beep(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return CJS_Result::Success();
if (params.size() > 1)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
uint32_t dwType = 4;
if (params.size() >= 1)
dwType = runtime->ToInt32(params[0]);
pNotify->GetAppProvider()->Beep(dwType);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::setFocus(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return CJS_Result::Success();
if (params.size() != 1)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
CXFA_Node* pNode = nullptr;
if (params.size() >= 1) {
if (params[0]->IsObject()) {
pNode = ToNode(runtime->ToXFAObject(params[0]));
} else if (params[0]->IsString()) {
CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
CXFA_Object* pObject = pScriptContext->GetThisObject();
if (!pObject)
return CJS_Result::Success();
constexpr Mask<XFA_ResolveFlag> kFlags = {XFA_ResolveFlag::kChildren,
XFA_ResolveFlag::kParent,
XFA_ResolveFlag::kSiblings};
absl::optional<CFXJSE_Engine::ResolveResult> maybeResult =
pScriptContext->ResolveObjects(
pObject, runtime->ToWideString(params[0]).AsStringView(), kFlags);
if (!maybeResult.has_value() ||
!maybeResult.value().objects.front()->IsNode()) {
return CJS_Result::Success();
}
pNode = maybeResult.value().objects.front()->AsNode();
}
}
pNotify->SetFocusWidgetNode(pNode);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::getFocus(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
CXFA_Node* pNode = pNotify->GetFocusWidgetNode();
if (!pNode)
return CJS_Result::Success();
v8::Local<v8::Value> value =
GetDocument()->GetScriptContext()->GetOrCreateJSBindingFromMap(pNode);
return CJS_Result::Success(value);
}
CJS_Result CJX_HostPseudoModel::messageBox(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return CJS_Result::Success();
if (params.empty() || params.size() > 4)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
WideString message;
if (params.size() >= 1)
message = runtime->ToWideString(params[0]);
WideString title;
if (params.size() >= 2)
title = runtime->ToWideString(params[1]);
uint32_t messageType = static_cast<uint32_t>(AlertIcon::kDefault);
if (params.size() >= 3) {
messageType = runtime->ToInt32(params[2]);
if (messageType > static_cast<uint32_t>(AlertIcon::kStatus))
messageType = static_cast<uint32_t>(AlertIcon::kDefault);
}
uint32_t buttonType = static_cast<uint32_t>(AlertButton::kDefault);
if (params.size() >= 4) {
buttonType = runtime->ToInt32(params[3]);
if (buttonType > static_cast<uint32_t>(AlertButton::kYesNoCancel))
buttonType = static_cast<uint32_t>(AlertButton::kDefault);
}
int32_t iValue = pNotify->GetAppProvider()->MsgBox(message, title,
messageType, buttonType);
return CJS_Result::Success(runtime->NewNumber(iValue));
}
CJS_Result CJX_HostPseudoModel::documentCountInBatch(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
return CJS_Result::Success(runtime->NewNumber(0));
}
CJS_Result CJX_HostPseudoModel::print(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (!GetDocument()->GetScriptContext()->IsRunAtClient())
return CJS_Result::Success();
if (params.size() != 8)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
Mask<XFA_PrintOpt> dwOptions;
if (runtime->ToBoolean(params[0]))
dwOptions |= XFA_PrintOpt::kShowDialog;
if (runtime->ToBoolean(params[3]))
dwOptions |= XFA_PrintOpt::kCanCancel;
if (runtime->ToBoolean(params[4]))
dwOptions |= XFA_PrintOpt::kShrinkPage;
if (runtime->ToBoolean(params[5]))
dwOptions |= XFA_PrintOpt::kAsImage;
if (runtime->ToBoolean(params[6]))
dwOptions |= XFA_PrintOpt::kReverseOrder;
if (runtime->ToBoolean(params[7]))
dwOptions |= XFA_PrintOpt::kPrintAnnot;
int32_t nStartPage = runtime->ToInt32(params[1]);
int32_t nEndPage = runtime->ToInt32(params[2]);
pNotify->GetFFDoc()->Print(nStartPage, nEndPage, dwOptions);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::importData(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.empty() || params.size() > 1)
return CJS_Result::Failure(JSMessage::kParamError);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::exportData(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
if (params.empty() || params.size() > 2)
return CJS_Result::Failure(JSMessage::kParamError);
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
WideString filePath;
if (params.size() >= 1)
filePath = runtime->ToWideString(params[0]);
bool XDP = true;
if (params.size() >= 2)
XDP = runtime->ToBoolean(params[1]);
pNotify->GetFFDoc()->ExportData(filePath, XDP);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::pageUp(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
int32_t nCurPage = hDoc->GetCurrentPage();
if (nCurPage <= 1)
return CJS_Result::Success();
hDoc->SetCurrentPage(nCurPage - 1);
return CJS_Result::Success();
}
CJS_Result CJX_HostPseudoModel::pageDown(
CFXJSE_Engine* runtime,
const std::vector<v8::Local<v8::Value>>& params) {
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
if (!pNotify)
return CJS_Result::Success();
CXFA_FFDoc* hDoc = pNotify->GetFFDoc();
int32_t nCurPage = hDoc->GetCurrentPage();
int32_t nPageCount = hDoc->CountPages();
if (!nPageCount || nCurPage == nPageCount)
return CJS_Result::Success();
int32_t nNewPage = 0;
if (nCurPage >= nPageCount)
nNewPage = nPageCount - 1;
else
nNewPage = nCurPage + 1;
hDoc->SetCurrentPage(nNewPage);
return CJS_Result::Success();
}
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