486 lines
16 KiB
C++
486 lines
16 KiB
C++
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// Copyright 2017 The PDFium Authors
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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_layoutpseudomodel.h"
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#include <set>
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#include <utility>
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#include "core/fxcrt/fx_coordinates.h"
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#include "fxjs/fxv8.h"
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#include "fxjs/js_resources.h"
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#include "fxjs/xfa/cfxjse_class.h"
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#include "fxjs/xfa/cfxjse_engine.h"
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#include "third_party/base/containers/contains.h"
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#include "v8/include/cppgc/allocation.h"
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#include "v8/include/v8-object.h"
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#include "xfa/fxfa/cxfa_ffnotify.h"
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#include "xfa/fxfa/layout/cxfa_contentlayoutitem.h"
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#include "xfa/fxfa/layout/cxfa_layoutitem.h"
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#include "xfa/fxfa/layout/cxfa_layoutprocessor.h"
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#include "xfa/fxfa/layout/cxfa_traversestrategy_layoutitem.h"
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#include "xfa/fxfa/layout/cxfa_viewlayoutitem.h"
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#include "xfa/fxfa/parser/cscript_layoutpseudomodel.h"
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#include "xfa/fxfa/parser/cxfa_arraynodelist.h"
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#include "xfa/fxfa/parser/cxfa_document.h"
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#include "xfa/fxfa/parser/cxfa_form.h"
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#include "xfa/fxfa/parser/cxfa_measurement.h"
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#include "xfa/fxfa/parser/cxfa_node.h"
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#include "xfa/fxfa/parser/cxfa_nodeiteratortemplate.h"
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const CJX_MethodSpec CJX_LayoutPseudoModel::MethodSpecs[] = {
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{"absPage", absPage_static},
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{"absPageCount", absPageCount_static},
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{"absPageCountInBatch", absPageCountInBatch_static},
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{"absPageInBatch", absPageInBatch_static},
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{"absPageSpan", absPageSpan_static},
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{"h", h_static},
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{"page", page_static},
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{"pageContent", pageContent_static},
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{"pageCount", pageCount_static},
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{"pageSpan", pageSpan_static},
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{"relayout", relayout_static},
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{"relayoutPageArea", relayoutPageArea_static},
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{"sheet", sheet_static},
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{"sheetCount", sheetCount_static},
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{"sheetCountInBatch", sheetCountInBatch_static},
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{"sheetInBatch", sheetInBatch_static},
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{"w", w_static},
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{"x", x_static},
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{"y", y_static}};
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CJX_LayoutPseudoModel::CJX_LayoutPseudoModel(CScript_LayoutPseudoModel* model)
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: CJX_Object(model) {
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DefineMethods(MethodSpecs);
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}
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CJX_LayoutPseudoModel::~CJX_LayoutPseudoModel() = default;
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bool CJX_LayoutPseudoModel::DynamicTypeIs(TypeTag eType) const {
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return eType == static_type__ || ParentType__::DynamicTypeIs(eType);
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}
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void CJX_LayoutPseudoModel::ready(v8::Isolate* pIsolate,
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v8::Local<v8::Value>* pValue,
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bool bSetting,
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XFA_Attribute eAttribute) {
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CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
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if (!pNotify)
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return;
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if (bSetting) {
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ThrowException(pIsolate,
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WideString::FromASCII("Unable to set ready value."));
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return;
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}
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CXFA_FFDocView::LayoutStatus iStatus = pNotify->GetLayoutStatus();
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const bool bReady = iStatus != CXFA_FFDocView::LayoutStatus::kNone &&
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iStatus != CXFA_FFDocView::LayoutStatus::kStart;
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*pValue = fxv8::NewBooleanHelper(pIsolate, bReady);
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}
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CJS_Result CJX_LayoutPseudoModel::DoHWXYInternal(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params,
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HWXY layoutModel) {
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if (params.empty() || params.size() > 3)
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return CJS_Result::Failure(JSMessage::kParamError);
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CXFA_Node* pNode = ToNode(runtime->ToXFAObject(params[0]));
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if (!pNode)
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return CJS_Result::Success();
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WideString unit = WideString::FromASCII("pt");
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if (params.size() >= 2) {
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WideString tmp_unit = runtime->ToWideString(params[1]);
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if (!tmp_unit.IsEmpty())
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unit = std::move(tmp_unit);
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}
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int32_t iIndex = params.size() >= 3 ? runtime->ToInt32(params[2]) : 0;
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auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(GetDocument());
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CXFA_ContentLayoutItem* pLayoutItem =
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ToContentLayoutItem(pDocLayout->GetLayoutItem(pNode));
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if (!pLayoutItem)
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return CJS_Result::Success();
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while (iIndex > 0 && pLayoutItem) {
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pLayoutItem = pLayoutItem->GetNext();
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--iIndex;
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}
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if (!pLayoutItem)
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return CJS_Result::Success(runtime->NewNumber(0.0));
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CXFA_Measurement measure;
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CFX_RectF rtRect = pLayoutItem->GetRelativeRect();
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switch (layoutModel) {
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case HWXY::kH:
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measure.Set(rtRect.height, XFA_Unit::Pt);
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break;
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case HWXY::kW:
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measure.Set(rtRect.width, XFA_Unit::Pt);
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break;
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case HWXY::kX:
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measure.Set(rtRect.left, XFA_Unit::Pt);
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break;
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case HWXY::kY:
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measure.Set(rtRect.top, XFA_Unit::Pt);
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break;
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}
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XFA_Unit eUnit = CXFA_Measurement::GetUnitFromString(unit.AsStringView());
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if (eUnit == XFA_Unit::Unknown)
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return CJS_Result::Failure(JSMessage::kValueError);
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float fValue = measure.ToUnit(eUnit);
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return CJS_Result::Success(
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runtime->NewNumber(FXSYS_roundf(fValue * 1000) / 1000.0f));
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}
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CJS_Result CJX_LayoutPseudoModel::h(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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return DoHWXYInternal(runtime, params, HWXY::kH);
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}
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CJS_Result CJX_LayoutPseudoModel::w(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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return DoHWXYInternal(runtime, params, HWXY::kW);
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}
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CJS_Result CJX_LayoutPseudoModel::x(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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return DoHWXYInternal(runtime, params, HWXY::kX);
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}
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CJS_Result CJX_LayoutPseudoModel::y(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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return DoHWXYInternal(runtime, params, HWXY::kY);
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}
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CJS_Result CJX_LayoutPseudoModel::AllPageCount(CFXJSE_Engine* runtime) {
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auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(GetDocument());
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return CJS_Result::Success(runtime->NewNumber(pDocLayout->CountPages()));
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}
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CJS_Result CJX_LayoutPseudoModel::NumberedPageCount(CFXJSE_Engine* runtime) {
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auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(GetDocument());
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int32_t iPageCount = 0;
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int32_t iPageNum = pDocLayout->CountPages();
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for (int32_t i = 0; i < iPageNum; i++) {
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CXFA_ViewLayoutItem* pLayoutPage = pDocLayout->GetPage(i);
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if (!pLayoutPage)
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continue;
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CXFA_Node* pMasterPage = pLayoutPage->GetMasterPage();
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if (pMasterPage->JSObject()->GetInteger(XFA_Attribute::Numbered))
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iPageCount++;
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}
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return CJS_Result::Success(runtime->NewNumber(iPageCount));
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}
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CJS_Result CJX_LayoutPseudoModel::pageCount(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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return NumberedPageCount(runtime);
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}
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CJS_Result CJX_LayoutPseudoModel::pageSpan(
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CFXJSE_Engine* 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_Result::Failure(JSMessage::kParamError);
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CXFA_Node* pNode = ToNode(runtime->ToXFAObject(params[0]));
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if (!pNode)
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return CJS_Result::Success();
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auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(GetDocument());
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CXFA_ContentLayoutItem* pLayoutItem =
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ToContentLayoutItem(pDocLayout->GetLayoutItem(pNode));
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if (!pLayoutItem)
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return CJS_Result::Success(runtime->NewNumber(-1));
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int32_t iLast = pLayoutItem->GetLast()->GetPage()->GetPageIndex();
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int32_t iFirst = pLayoutItem->GetFirst()->GetPage()->GetPageIndex();
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int32_t iPageSpan = iLast - iFirst + 1;
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return CJS_Result::Success(runtime->NewNumber(iPageSpan));
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}
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CJS_Result CJX_LayoutPseudoModel::page(
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CFXJSE_Engine* runtime,
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const std::vector<v8::Local<v8::Value>>& params) {
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return PageInternals(runtime, params, false);
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}
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std::vector<CXFA_Node*> CJX_LayoutPseudoModel::GetObjArray(
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CXFA_LayoutProcessor* pDocLayout,
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int32_t iPageNo,
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const WideString& wsType,
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bool bOnPageArea) {
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CXFA_ViewLayoutItem* pLayoutPage = pDocLayout->GetPage(iPageNo);
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if (!pLayoutPage)
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return std::vector<CXFA_Node*>();
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std::vector<CXFA_Node*> retArray;
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if (wsType.EqualsASCII("pageArea")) {
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if (pLayoutPage->GetFormNode())
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retArray.push_back(pLayoutPage->GetFormNode());
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return retArray;
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}
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if (wsType.EqualsASCII("contentArea")) {
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for (CXFA_LayoutItem* pItem = pLayoutPage->GetFirstChild(); pItem;
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pItem = pItem->GetNextSibling()) {
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if (pItem->GetFormNode()->GetElementType() == XFA_Element::ContentArea)
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retArray.push_back(pItem->GetFormNode());
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}
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return retArray;
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}
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std::set<CXFA_Node*> formItems;
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if (wsType.IsEmpty()) {
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if (pLayoutPage->GetFormNode())
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retArray.push_back(pLayoutPage->GetFormNode());
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for (CXFA_LayoutItem* pItem = pLayoutPage->GetFirstChild(); pItem;
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pItem = pItem->GetNextSibling()) {
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if (pItem->GetFormNode()->GetElementType() == XFA_Element::ContentArea) {
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retArray.push_back(pItem->GetFormNode());
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if (!bOnPageArea) {
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CXFA_LayoutItemIterator iterator(pItem->GetFirstChild());
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for (CXFA_LayoutItem* pChild = iterator.GetCurrent(); pChild;
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pChild = iterator.MoveToNext()) {
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CXFA_ContentLayoutItem* pItemChild = pChild->AsContentLayoutItem();
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if (!pItemChild)
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continue;
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XFA_Element eType = pItemChild->GetFormNode()->GetElementType();
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if (eType != XFA_Element::Field && eType != XFA_Element::Draw &&
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eType != XFA_Element::Subform && eType != XFA_Element::Area) {
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continue;
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}
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if (pdfium::Contains(formItems, pItemChild->GetFormNode()))
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continue;
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formItems.insert(pItemChild->GetFormNode());
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retArray.push_back(pItemChild->GetFormNode());
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}
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}
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} else {
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if (bOnPageArea) {
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CXFA_LayoutItemIterator iterator(pItem);
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for (CXFA_LayoutItem* pChild = iterator.GetCurrent(); pChild;
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pChild = iterator.MoveToNext()) {
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CXFA_ContentLayoutItem* pItemChild = pChild->AsContentLayoutItem();
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if (!pItemChild)
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continue;
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XFA_Element eType = pItemChild->GetFormNode()->GetElementType();
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if (eType != XFA_Element::Field && eType != XFA_Element::Draw &&
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eType != XFA_Element::Subform && eType != XFA_Element::Area) {
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continue;
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}
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if (pdfium::Contains(formItems, pItemChild->GetFormNode()))
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continue;
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formItems.insert(pItemChild->GetFormNode());
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retArray.push_back(pItemChild->GetFormNode());
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}
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}
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}
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}
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return retArray;
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}
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XFA_Element eType = XFA_Element::Unknown;
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if (wsType.EqualsASCII("field"))
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eType = XFA_Element::Field;
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else if (wsType.EqualsASCII("draw"))
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eType = XFA_Element::Draw;
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else if (wsType.EqualsASCII("subform"))
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eType = XFA_Element::Subform;
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else if (wsType.EqualsASCII("area"))
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eType = XFA_Element::Area;
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if (eType != XFA_Element::Unknown) {
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for (CXFA_LayoutItem* pItem = pLayoutPage->GetFirstChild(); pItem;
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pItem = pItem->GetNextSibling()) {
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if (pItem->GetFormNode()->GetElementType() == XFA_Element::ContentArea) {
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if (!bOnPageArea) {
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CXFA_LayoutItemIterator iterator(pItem->GetFirstChild());
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for (CXFA_LayoutItem* pChild = iterator.GetCurrent(); pChild;
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pChild = iterator.MoveToNext()) {
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CXFA_ContentLayoutItem* pItemChild = pChild->AsContentLayoutItem();
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if (!pItemChild)
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continue;
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if (pItemChild->GetFormNode()->GetElementType() != eType)
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continue;
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if (pdfium::Contains(formItems, pItemChild->GetFormNode()))
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continue;
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formItems.insert(pItemChild->GetFormNode());
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retArray.push_back(pItemChild->GetFormNode());
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}
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}
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} else {
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if (bOnPageArea) {
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CXFA_LayoutItemIterator iterator(pItem);
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for (CXFA_LayoutItem* pChild = iterator.GetCurrent(); pChild;
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pChild = iterator.MoveToNext()) {
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CXFA_ContentLayoutItem* pItemChild = pChild->AsContentLayoutItem();
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if (!pItemChild)
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continue;
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if (pItemChild->GetFormNode()->GetElementType() != eType)
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continue;
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||
|
|
if (pdfium::Contains(formItems, pItemChild->GetFormNode()))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
formItems.insert(pItemChild->GetFormNode());
|
||
|
|
retArray.push_back(pItemChild->GetFormNode());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return retArray;
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::pageContent(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
if (params.empty() || params.size() > 3)
|
||
|
|
return CJS_Result::Failure(JSMessage::kParamError);
|
||
|
|
|
||
|
|
int32_t iIndex = 0;
|
||
|
|
if (params.size() >= 1)
|
||
|
|
iIndex = runtime->ToInt32(params[0]);
|
||
|
|
|
||
|
|
WideString wsType;
|
||
|
|
if (params.size() >= 2)
|
||
|
|
wsType = runtime->ToWideString(params[1]);
|
||
|
|
|
||
|
|
bool bOnPageArea = false;
|
||
|
|
if (params.size() >= 3)
|
||
|
|
bOnPageArea = runtime->ToBoolean(params[2]);
|
||
|
|
|
||
|
|
CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
|
||
|
|
if (!pNotify)
|
||
|
|
return CJS_Result::Success();
|
||
|
|
|
||
|
|
CXFA_Document* pDoc = GetDocument();
|
||
|
|
auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(pDoc);
|
||
|
|
auto* pArrayNodeList = cppgc::MakeGarbageCollected<CXFA_ArrayNodeList>(
|
||
|
|
pDoc->GetHeap()->GetAllocationHandle(), pDoc);
|
||
|
|
pDoc->GetNodeOwner()->PersistList(pArrayNodeList);
|
||
|
|
pArrayNodeList->SetArrayNodeList(
|
||
|
|
GetObjArray(pDocLayout, iIndex, wsType, bOnPageArea));
|
||
|
|
return CJS_Result::Success(runtime->NewNormalXFAObject(pArrayNodeList));
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::absPageCount(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return AllPageCount(runtime);
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::absPageCountInBatch(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::sheetCountInBatch(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::relayout(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
CXFA_Node* pRootNode = GetDocument()->GetRoot();
|
||
|
|
auto* pLayoutProcessor = GetDocument()->GetLayoutProcessor();
|
||
|
|
CXFA_Form* pFormRoot =
|
||
|
|
pRootNode->GetFirstChildByClass<CXFA_Form>(XFA_Element::Form);
|
||
|
|
if (pFormRoot) {
|
||
|
|
if (pFormRoot->GetFirstChild())
|
||
|
|
pLayoutProcessor->SetHasChangedContainer();
|
||
|
|
}
|
||
|
|
pLayoutProcessor->SetForceRelayout();
|
||
|
|
return CJS_Result::Success();
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::absPageSpan(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return pageSpan(runtime, params);
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::absPageInBatch(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
if (params.size() != 1)
|
||
|
|
return CJS_Result::Failure(JSMessage::kParamError);
|
||
|
|
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::sheetInBatch(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
if (params.size() != 1)
|
||
|
|
return CJS_Result::Failure(JSMessage::kParamError);
|
||
|
|
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(0));
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::sheet(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return PageInternals(runtime, params, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::relayoutPageArea(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return CJS_Result::Success();
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::sheetCount(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return AllPageCount(runtime);
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::absPage(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params) {
|
||
|
|
return PageInternals(runtime, params, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
CJS_Result CJX_LayoutPseudoModel::PageInternals(
|
||
|
|
CFXJSE_Engine* runtime,
|
||
|
|
const std::vector<v8::Local<v8::Value>>& params,
|
||
|
|
bool bAbsPage) {
|
||
|
|
if (params.size() != 1)
|
||
|
|
return CJS_Result::Failure(JSMessage::kParamError);
|
||
|
|
|
||
|
|
CXFA_Node* pNode = ToNode(runtime->ToXFAObject(params[0]));
|
||
|
|
if (!pNode)
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(0));
|
||
|
|
|
||
|
|
auto* pDocLayout = CXFA_LayoutProcessor::FromDocument(GetDocument());
|
||
|
|
CXFA_ContentLayoutItem* pLayoutItem =
|
||
|
|
ToContentLayoutItem(pDocLayout->GetLayoutItem(pNode));
|
||
|
|
if (!pLayoutItem)
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(-1));
|
||
|
|
|
||
|
|
int32_t iPage = pLayoutItem->GetFirst()->GetPage()->GetPageIndex();
|
||
|
|
return CJS_Result::Success(runtime->NewNumber(bAbsPage ? iPage : iPage + 1));
|
||
|
|
}
|