// Copyright 2014 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 "xfa/fxfa/parser/xfa_document_layout_imp.h"
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#include "xfa/fxfa/parser/xfa_basic_imp.h"
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#include "xfa/fxfa/parser/xfa_doclayout.h"
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#include "xfa/fxfa/parser/xfa_document.h"
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#include "xfa/fxfa/parser/xfa_document_datamerger_imp.h"
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#include "xfa/fxfa/parser/xfa_layout_appadapter.h"
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#include "xfa/fxfa/parser/xfa_layout_itemlayout.h"
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#include "xfa/fxfa/parser/xfa_layout_pagemgr_new.h"
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#include "xfa/fxfa/parser/xfa_localemgr.h"
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#include "xfa/fxfa/parser/xfa_object.h"
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#include "xfa/fxfa/parser/xfa_script.h"
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#include "xfa/fxfa/parser/xfa_utils.h"
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CXFA_LayoutProcessor* CXFA_Document::GetLayoutProcessor() {
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if (!m_pLayoutProcessor) {
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m_pLayoutProcessor = new CXFA_LayoutProcessor(this);
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ASSERT(m_pLayoutProcessor);
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}
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return m_pLayoutProcessor;
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}
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CXFA_LayoutProcessor* CXFA_Document::GetDocLayout() {
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return GetLayoutProcessor();
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}
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CXFA_LayoutProcessor::CXFA_LayoutProcessor(CXFA_Document* pDocument)
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: m_pDocument(pDocument),
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m_pRootItemLayoutProcessor(nullptr),
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m_pLayoutPageMgr(nullptr),
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m_nProgressCounter(0),
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m_bNeeLayout(TRUE) {}
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CXFA_LayoutProcessor::~CXFA_LayoutProcessor() {
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ClearLayoutData();
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}
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CXFA_Document* CXFA_LayoutProcessor::GetDocument() const {
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return m_pDocument;
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}
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int32_t CXFA_LayoutProcessor::StartLayout(FX_BOOL bForceRestart) {
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if (!bForceRestart && !IsNeedLayout())
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return 100;
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delete m_pRootItemLayoutProcessor;
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m_pRootItemLayoutProcessor = nullptr;
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m_nProgressCounter = 0;
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CXFA_Node* pFormPacketNode =
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ToNode(m_pDocument->GetXFAObject(XFA_HASHCODE_Form));
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if (!pFormPacketNode) {
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return -1;
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}
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CXFA_Node* pFormRoot =
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pFormPacketNode->GetFirstChildByClass(XFA_Element::Subform);
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if (!pFormRoot) {
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return -1;
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}
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if (!m_pLayoutPageMgr) {
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m_pLayoutPageMgr = new CXFA_LayoutPageMgr(this);
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}
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if (!m_pLayoutPageMgr->InitLayoutPage(pFormRoot)) {
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return -1;
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}
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if (!m_pLayoutPageMgr->PrepareFirstPage(pFormRoot)) {
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return -1;
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}
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m_pRootItemLayoutProcessor =
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new CXFA_ItemLayoutProcessor(pFormRoot, m_pLayoutPageMgr);
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m_nProgressCounter = 1;
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return 0;
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}
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int32_t CXFA_LayoutProcessor::DoLayout(IFX_Pause* pPause) {
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if (m_nProgressCounter < 1) {
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return -1;
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}
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XFA_ItemLayoutProcessorResult eStatus;
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CXFA_Node* pFormNode = m_pRootItemLayoutProcessor->GetFormNode();
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FX_FLOAT fPosX = pFormNode->GetMeasure(XFA_ATTRIBUTE_X).ToUnit(XFA_UNIT_Pt);
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FX_FLOAT fPosY = pFormNode->GetMeasure(XFA_ATTRIBUTE_Y).ToUnit(XFA_UNIT_Pt);
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do {
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FX_FLOAT fAvailHeight = m_pLayoutPageMgr->GetAvailHeight();
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eStatus =
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m_pRootItemLayoutProcessor->DoLayout(TRUE, fAvailHeight, fAvailHeight);
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if (eStatus != XFA_ItemLayoutProcessorResult_Done) {
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m_nProgressCounter++;
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}
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CXFA_ContentLayoutItem* pLayoutItem =
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m_pRootItemLayoutProcessor->ExtractLayoutItem();
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if (pLayoutItem) {
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pLayoutItem->m_sPos = CFX_PointF(fPosX, fPosY);
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}
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m_pLayoutPageMgr->SubmitContentItem(pLayoutItem, eStatus);
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} while (eStatus != XFA_ItemLayoutProcessorResult_Done &&
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(!pPause || !pPause->NeedToPauseNow()));
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if (eStatus == XFA_ItemLayoutProcessorResult_Done) {
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m_pLayoutPageMgr->FinishPaginatedPageSets();
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m_pLayoutPageMgr->SyncLayoutData();
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m_bNeeLayout = FALSE;
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m_rgChangedContainers.RemoveAll();
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}
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return 100 * (eStatus == XFA_ItemLayoutProcessorResult_Done
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? m_nProgressCounter
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: m_nProgressCounter - 1) /
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m_nProgressCounter;
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}
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FX_BOOL CXFA_LayoutProcessor::IncrementLayout() {
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if (m_bNeeLayout) {
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StartLayout(TRUE);
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return DoLayout(nullptr) == 100;
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}
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for (int32_t i = 0, c = m_rgChangedContainers.GetSize(); i < c; i++) {
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CXFA_Node* pNode = m_rgChangedContainers[i];
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CXFA_Node* pParentNode =
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pNode->GetNodeItem(XFA_NODEITEM_Parent, XFA_ObjectType::ContainerNode);
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if (!pParentNode) {
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return FALSE;
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}
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if (!CXFA_ItemLayoutProcessor::IncrementRelayoutNode(this, pNode,
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pParentNode)) {
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return FALSE;
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}
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}
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m_rgChangedContainers.RemoveAll();
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return TRUE;
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}
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int32_t CXFA_LayoutProcessor::CountPages() const {
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return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetPageCount() : 0;
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}
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CXFA_ContainerLayoutItem* CXFA_LayoutProcessor::GetPage(int32_t index) const {
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return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetPage(index) : nullptr;
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}
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CXFA_LayoutItem* CXFA_LayoutProcessor::GetLayoutItem(CXFA_Node* pFormItem) {
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return static_cast<CXFA_LayoutItem*>(
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pFormItem->GetUserData(XFA_LAYOUTITEMKEY));
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}
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void CXFA_LayoutProcessor::AddChangedContainer(CXFA_Node* pContainer) {
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if (m_rgChangedContainers.Find(pContainer) < 0) {
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m_rgChangedContainers.Add(pContainer);
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}
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}
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CXFA_ContainerLayoutItem* CXFA_LayoutProcessor::GetRootLayoutItem() const {
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return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetRootLayoutItem() : nullptr;
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}
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void CXFA_LayoutProcessor::ClearLayoutData() {
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delete m_pLayoutPageMgr;
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m_pLayoutPageMgr = nullptr;
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delete m_pRootItemLayoutProcessor;
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m_pRootItemLayoutProcessor = nullptr;
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m_nProgressCounter = 0;
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}
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FX_BOOL CXFA_LayoutProcessor::IsNeedLayout() {
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return m_bNeeLayout || m_rgChangedContainers.GetSize() > 0;
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}
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CXFA_LayoutItem::CXFA_LayoutItem(CXFA_Node* pNode, FX_BOOL bIsContentLayoutItem)
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: m_pFormNode(pNode),
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m_pParent(nullptr),
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m_pNextSibling(nullptr),
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m_pFirstChild(nullptr),
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m_bIsContentLayoutItem(bIsContentLayoutItem) {}
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CXFA_LayoutItem::~CXFA_LayoutItem() {}
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CXFA_ContainerLayoutItem::CXFA_ContainerLayoutItem(CXFA_Node* pNode)
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: CXFA_LayoutItem(pNode, FALSE), m_pOldSubform(nullptr) {}
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CXFA_LayoutProcessor* CXFA_ContainerLayoutItem::GetLayout() const {
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return m_pFormNode->GetDocument()->GetLayoutProcessor();
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}
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int32_t CXFA_ContainerLayoutItem::GetPageIndex() const {
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return m_pFormNode->GetDocument()
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->GetLayoutProcessor()
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->GetLayoutPageMgr()
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->GetPageIndex(this);
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}
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void CXFA_ContainerLayoutItem::GetPageSize(CFX_SizeF& size) const {
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size.clear();
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CXFA_Node* pMedium = m_pFormNode->GetFirstChildByClass(XFA_Element::Medium);
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if (!pMedium)
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return;
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size = CFX_SizeF(pMedium->GetMeasure(XFA_ATTRIBUTE_Short).ToUnit(XFA_UNIT_Pt),
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pMedium->GetMeasure(XFA_ATTRIBUTE_Long).ToUnit(XFA_UNIT_Pt));
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if (pMedium->GetEnum(XFA_ATTRIBUTE_Orientation) ==
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XFA_ATTRIBUTEENUM_Landscape) {
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size = CFX_SizeF(size.y, size.x);
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}
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}
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CXFA_Node* CXFA_ContainerLayoutItem::GetMasterPage() const {
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return m_pFormNode;
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}
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CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode)
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: CXFA_LayoutItem(pNode, TRUE),
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m_pPrev(nullptr),
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m_pNext(nullptr),
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m_dwStatus(0) {}
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CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() {
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if (m_pFormNode->GetUserData(XFA_LAYOUTITEMKEY) == this) {
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m_pFormNode->SetUserData(XFA_LAYOUTITEMKEY, nullptr);
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}
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}
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