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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
#ifndef XFA_FXFA_LAYOUT_CXFA_LAYOUTPROCESSOR_H_
#define XFA_FXFA_LAYOUT_CXFA_LAYOUTPROCESSOR_H_
#include <stdint.h>
#include "core/fxcrt/unowned_ptr.h"
#include "fxjs/gc/heap.h"
#include "v8/include/cppgc/garbage-collected.h"
#include "v8/include/cppgc/member.h"
#include "v8/include/cppgc/visitor.h"
#include "xfa/fxfa/parser/cxfa_document.h"
class CXFA_ContentLayoutProcessor;
class CXFA_LayoutItem;
class CXFA_Node;
class CXFA_ViewLayoutItem;
class CXFA_ViewLayoutProcessor;
namespace cppgc {
class Heap;
} // namespace cppgc
class CXFA_LayoutProcessor final : public CXFA_Document::LayoutProcessorIface {
public:
static CXFA_LayoutProcessor* FromDocument(const CXFA_Document* pXFADoc);
CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED;
~CXFA_LayoutProcessor() override;
void Trace(cppgc::Visitor* visitor) const override;
// CXFA_Document::LayoutProcessorIface:
void SetForceRelayout() override;
void SetHasChangedContainer() override;
int32_t StartLayout();
int32_t DoLayout();
bool IncrementLayout();
int32_t CountPages() const;
CXFA_ViewLayoutItem* GetPage(int32_t index) const;
CXFA_LayoutItem* GetLayoutItem(CXFA_Node* pFormItem);
CXFA_ContentLayoutProcessor* GetRootContentLayoutProcessor() const {
return m_pContentLayoutProcessor;
}
CXFA_ViewLayoutProcessor* GetLayoutPageMgr() const {
return m_pViewLayoutProcessor;
}
private:
explicit CXFA_LayoutProcessor(cppgc::Heap* pHeap);
cppgc::Heap* GetHeap() { return m_pHeap; }
bool NeedLayout() const;
int32_t RestartLayout();
UnownedPtr<cppgc::Heap> const m_pHeap;
cppgc::Member<CXFA_ViewLayoutProcessor> m_pViewLayoutProcessor;
cppgc::Member<CXFA_ContentLayoutProcessor> m_pContentLayoutProcessor;
uint32_t m_nProgressCounter = 0;
bool m_bHasChangedContainers = false;
bool m_bNeedLayout = true;
};
#endif // XFA_FXFA_LAYOUT_CXFA_LAYOUTPROCESSOR_H_