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// Copyright 2016 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 "xfa/fxfa/layout/cxfa_contentlayoutitem.h"
#include "fxjs/xfa/cjx_object.h"
#include "third_party/base/check_op.h"
#include "xfa/fxfa/cxfa_ffwidget.h"
#include "xfa/fxfa/parser/cxfa_margin.h"
#include "xfa/fxfa/parser/cxfa_node.h"
CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode,
CXFA_FFWidget* pWidget)
: CXFA_LayoutItem(pNode, kContentItem), m_pFFWidget(pWidget) {
if (m_pFFWidget)
m_pFFWidget->SetLayoutItem(this);
}
CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() = default;
void CXFA_ContentLayoutItem::Trace(cppgc::Visitor* visitor) const {
CXFA_LayoutItem::Trace(visitor);
visitor->Trace(m_pPrev);
visitor->Trace(m_pNext);
visitor->Trace(m_pFFWidget);
}
CXFA_ContentLayoutItem* CXFA_ContentLayoutItem::GetFirst() {
CXFA_ContentLayoutItem* pCurNode = this;
while (auto* pPrev = pCurNode->GetPrev())
pCurNode = pPrev;
return pCurNode;
}
CXFA_ContentLayoutItem* CXFA_ContentLayoutItem::GetLast() {
CXFA_ContentLayoutItem* pCurNode = this;
while (auto* pNext = pCurNode->GetNext())
pCurNode = pNext;
return pCurNode;
}
void CXFA_ContentLayoutItem::InsertAfter(CXFA_ContentLayoutItem* pItem) {
CHECK_NE(this, pItem);
pItem->RemoveSelf();
pItem->m_pNext = m_pNext;
pItem->m_pPrev = this;
m_pNext = pItem;
if (pItem->m_pNext)
pItem->m_pNext->m_pPrev = pItem;
}
void CXFA_ContentLayoutItem::RemoveSelf() {
if (m_pNext)
m_pNext->m_pPrev = m_pPrev;
if (m_pPrev)
m_pPrev->m_pNext = m_pNext;
}
CFX_RectF CXFA_ContentLayoutItem::GetRelativeRect() const {
return CFX_RectF(m_sPos, m_sSize);
}
CFX_RectF CXFA_ContentLayoutItem::GetAbsoluteRect() const {
CFX_PointF sPos = m_sPos;
CFX_SizeF sSize = m_sSize;
for (CXFA_LayoutItem* pLayoutItem = GetParent(); pLayoutItem;
pLayoutItem = pLayoutItem->GetParent()) {
if (CXFA_ContentLayoutItem* pContent = pLayoutItem->AsContentLayoutItem()) {
sPos += pContent->m_sPos;
CXFA_Margin* pMarginNode =
pContent->GetFormNode()->GetFirstChildByClass<CXFA_Margin>(
XFA_Element::Margin);
if (pMarginNode) {
sPos += CFX_PointF(pMarginNode->JSObject()->GetMeasureInUnit(
XFA_Attribute::LeftInset, XFA_Unit::Pt),
pMarginNode->JSObject()->GetMeasureInUnit(
XFA_Attribute::TopInset, XFA_Unit::Pt));
}
continue;
}
if (pLayoutItem->GetFormNode()->GetElementType() ==
XFA_Element::ContentArea) {
sPos +=
CFX_PointF(pLayoutItem->GetFormNode()->JSObject()->GetMeasureInUnit(
XFA_Attribute::X, XFA_Unit::Pt),
pLayoutItem->GetFormNode()->JSObject()->GetMeasureInUnit(
XFA_Attribute::Y, XFA_Unit::Pt));
break;
}
if (pLayoutItem->GetFormNode()->GetElementType() == XFA_Element::PageArea)
break;
}
return CFX_RectF(sPos, sSize);
}
size_t CXFA_ContentLayoutItem::GetIndex() const {
size_t szIndex = 0;
const CXFA_ContentLayoutItem* pCurNode = this;
while (auto* pPrev = pCurNode->GetPrev()) {
pCurNode = pPrev;
++szIndex;
}
return szIndex;
}