// Copyright 2014 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 "xfa/fxfa/parser/xfa_document_layout_imp.h" #include "xfa/fxfa/fm2js/xfa_fm2jsapi.h" #include "xfa/fxfa/parser/xfa_basic_imp.h" #include "xfa/fxfa/parser/xfa_doclayout.h" #include "xfa/fxfa/parser/xfa_document.h" #include "xfa/fxfa/parser/xfa_document_datamerger_imp.h" #include "xfa/fxfa/parser/xfa_layout_appadapter.h" #include "xfa/fxfa/parser/xfa_layout_itemlayout.h" #include "xfa/fxfa/parser/xfa_layout_pagemgr_new.h" #include "xfa/fxfa/parser/xfa_localemgr.h" #include "xfa/fxfa/parser/xfa_object.h" #include "xfa/fxfa/parser/xfa_parser.h" #include "xfa/fxfa/parser/xfa_script.h" #include "xfa/fxfa/parser/xfa_utils.h" CXFA_LayoutProcessor* CXFA_Document::GetLayoutProcessor() { if (!m_pLayoutProcessor) { m_pLayoutProcessor = new CXFA_LayoutProcessor(this); ASSERT(m_pLayoutProcessor); } return m_pLayoutProcessor; } CXFA_LayoutProcessor* CXFA_Document::GetDocLayout() { return GetLayoutProcessor(); } CXFA_LayoutProcessor::CXFA_LayoutProcessor(CXFA_Document* pDocument) : m_pDocument(pDocument), m_pRootItemLayoutProcessor(NULL), m_pLayoutPageMgr(NULL), m_nProgressCounter(0), m_bNeeLayout(TRUE) {} CXFA_LayoutProcessor::~CXFA_LayoutProcessor() { ClearLayoutData(); } CXFA_Document* CXFA_LayoutProcessor::GetDocument() const { return m_pDocument; } int32_t CXFA_LayoutProcessor::StartLayout(FX_BOOL bForceRestart) { if (!bForceRestart && !IsNeedLayout()) return 100; delete m_pRootItemLayoutProcessor; m_pRootItemLayoutProcessor = nullptr; m_nProgressCounter = 0; CXFA_Node* pFormPacketNode = ToNode(m_pDocument->GetXFAObject(XFA_HASHCODE_Form)); if (!pFormPacketNode) { return -1; } CXFA_Node* pFormRoot = pFormPacketNode->GetFirstChildByClass(XFA_ELEMENT_Subform); if (!pFormRoot) { return -1; } if (!m_pLayoutPageMgr) { m_pLayoutPageMgr = new CXFA_LayoutPageMgr(this); } if (!m_pLayoutPageMgr->InitLayoutPage(pFormRoot)) { return -1; } if (!m_pLayoutPageMgr->PrepareFirstPage(pFormRoot)) { return -1; } m_pRootItemLayoutProcessor = new CXFA_ItemLayoutProcessor(pFormRoot, m_pLayoutPageMgr); m_nProgressCounter = 1; return 0; } int32_t CXFA_LayoutProcessor::DoLayout(IFX_Pause* pPause) { if (m_nProgressCounter < 1) { return -1; } XFA_ItemLayoutProcessorResult eStatus; CXFA_Node* pFormNode = m_pRootItemLayoutProcessor->GetFormNode(); FX_FLOAT fPosX = pFormNode->GetMeasure(XFA_ATTRIBUTE_X).ToUnit(XFA_UNIT_Pt); FX_FLOAT fPosY = pFormNode->GetMeasure(XFA_ATTRIBUTE_Y).ToUnit(XFA_UNIT_Pt); do { FX_FLOAT fAvailHeight = m_pLayoutPageMgr->GetAvailHeight(); eStatus = m_pRootItemLayoutProcessor->DoLayout(TRUE, fAvailHeight, fAvailHeight); if (eStatus != XFA_ItemLayoutProcessorResult_Done) { m_nProgressCounter++; } CXFA_ContentLayoutItem* pLayoutItem = m_pRootItemLayoutProcessor->ExtractLayoutItem(); if (pLayoutItem) { pLayoutItem->m_sPos = CFX_PointF(fPosX, fPosY); } m_pLayoutPageMgr->SubmitContentItem(pLayoutItem, eStatus); } while (eStatus != XFA_ItemLayoutProcessorResult_Done && (!pPause || !pPause->NeedToPauseNow())); if (eStatus == XFA_ItemLayoutProcessorResult_Done) { m_pLayoutPageMgr->FinishPaginatedPageSets(); m_pLayoutPageMgr->SyncLayoutData(); m_bNeeLayout = FALSE; m_rgChangedContainers.RemoveAll(); } return 100 * (eStatus == XFA_ItemLayoutProcessorResult_Done ? m_nProgressCounter : m_nProgressCounter - 1) / m_nProgressCounter; } FX_BOOL CXFA_LayoutProcessor::IncrementLayout() { if (m_bNeeLayout) { StartLayout(TRUE); return DoLayout(NULL) == 100; } for (int32_t i = 0, c = m_rgChangedContainers.GetSize(); i < c; i++) { CXFA_Node* pNode = m_rgChangedContainers[i]; CXFA_Node* pParentNode = pNode->GetNodeItem(XFA_NODEITEM_Parent, XFA_OBJECTTYPE_ContainerNode); if (!pParentNode) { return FALSE; } if (!CXFA_ItemLayoutProcessor::IncrementRelayoutNode(this, pNode, pParentNode)) { return FALSE; } } m_rgChangedContainers.RemoveAll(); return TRUE; } int32_t CXFA_LayoutProcessor::CountPages() const { return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetPageCount() : 0; } CXFA_ContainerLayoutItem* CXFA_LayoutProcessor::GetPage(int32_t index) const { return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetPage(index) : NULL; } CXFA_LayoutItem* CXFA_LayoutProcessor::GetLayoutItem(CXFA_Node* pFormItem) { return static_cast<CXFA_LayoutItem*>( pFormItem->GetUserData(XFA_LAYOUTITEMKEY)); } void CXFA_LayoutProcessor::AddChangedContainer(CXFA_Node* pContainer) { if (m_rgChangedContainers.Find(pContainer) < 0) { m_rgChangedContainers.Add(pContainer); } } CXFA_ContainerLayoutItem* CXFA_LayoutProcessor::GetRootLayoutItem() const { return m_pLayoutPageMgr ? m_pLayoutPageMgr->GetRootLayoutItem() : NULL; } void CXFA_LayoutProcessor::ClearLayoutData() { delete m_pLayoutPageMgr; m_pLayoutPageMgr = nullptr; delete m_pRootItemLayoutProcessor; m_pRootItemLayoutProcessor = nullptr; m_nProgressCounter = 0; } FX_BOOL CXFA_LayoutProcessor::IsNeedLayout() { return m_bNeeLayout || m_rgChangedContainers.GetSize() > 0; } CXFA_LayoutItem::CXFA_LayoutItem(CXFA_Node* pNode, FX_BOOL bIsContentLayoutItem) : m_pFormNode(pNode), m_pParent(NULL), m_pNextSibling(NULL), m_pFirstChild(NULL), m_bIsContentLayoutItem(bIsContentLayoutItem) {} CXFA_LayoutItem::~CXFA_LayoutItem() {} CXFA_ContainerLayoutItem::CXFA_ContainerLayoutItem(CXFA_Node* pNode) : CXFA_LayoutItem(pNode, FALSE), m_pOldSubform(NULL) {} CXFA_LayoutProcessor* CXFA_ContainerLayoutItem::GetLayout() const { return m_pFormNode->GetDocument()->GetLayoutProcessor(); } int32_t CXFA_ContainerLayoutItem::GetPageIndex() const { return m_pFormNode->GetDocument() ->GetLayoutProcessor() ->GetLayoutPageMgr() ->GetPageIndex(this); } void CXFA_ContainerLayoutItem::GetPageSize(CFX_SizeF& size) const { size.clear(); CXFA_Node* pMedium = m_pFormNode->GetFirstChildByClass(XFA_ELEMENT_Medium); if (!pMedium) return; size = CFX_SizeF(pMedium->GetMeasure(XFA_ATTRIBUTE_Short).ToUnit(XFA_UNIT_Pt), pMedium->GetMeasure(XFA_ATTRIBUTE_Long).ToUnit(XFA_UNIT_Pt)); if (pMedium->GetEnum(XFA_ATTRIBUTE_Orientation) == XFA_ATTRIBUTEENUM_Landscape) { size = CFX_SizeF(size.y, size.x); } } CXFA_Node* CXFA_ContainerLayoutItem::GetMasterPage() const { return m_pFormNode; } CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode) : CXFA_LayoutItem(pNode, TRUE), m_pPrev(NULL), m_pNext(NULL), m_dwStatus(0) {} CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() { if (m_pFormNode->GetUserData(XFA_LAYOUTITEMKEY) == this) { m_pFormNode->SetUserData(XFA_LAYOUTITEMKEY, NULL); } }