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// 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/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(nullptr),
m_pLayoutPageMgr(nullptr),
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(nullptr) == 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) : nullptr;
}
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() : nullptr;
}
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(nullptr),
m_pNextSibling(nullptr),
m_pFirstChild(nullptr),
m_bIsContentLayoutItem(bIsContentLayoutItem) {}
CXFA_LayoutItem::~CXFA_LayoutItem() {}
CXFA_ContainerLayoutItem::CXFA_ContainerLayoutItem(CXFA_Node* pNode)
: CXFA_LayoutItem(pNode, FALSE), m_pOldSubform(nullptr) {}
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(nullptr),
m_pNext(nullptr),
m_dwStatus(0) {}
CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() {
if (m_pFormNode->GetUserData(XFA_LAYOUTITEMKEY) == this) {
m_pFormNode->SetUserData(XFA_LAYOUTITEMKEY, nullptr);
}
}
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