63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
// Copyright 2016 The PDFium Authors
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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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#ifndef XFA_FXFA_LAYOUT_CXFA_LAYOUTITEM_H_
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#define XFA_FXFA_LAYOUT_CXFA_LAYOUTITEM_H_
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#include "fxjs/gc/gced_tree_node.h"
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#include "fxjs/gc/heap.h"
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#include "v8/include/cppgc/member.h"
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#include "v8/include/cppgc/prefinalizer.h"
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#include "v8/include/cppgc/visitor.h"
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class CXFA_ContentLayoutItem;
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class CXFA_Node;
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class CXFA_ViewLayoutItem;
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class CXFA_LayoutItem : public GCedTreeNode<CXFA_LayoutItem> {
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CPPGC_USING_PRE_FINALIZER(CXFA_LayoutItem, PreFinalize);
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public:
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CONSTRUCT_VIA_MAKE_GARBAGE_COLLECTED;
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~CXFA_LayoutItem() override;
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void PreFinalize();
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// GCedTreeNode:
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void Trace(cppgc::Visitor* visitor) const override;
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bool IsViewLayoutItem() const { return m_ItemType == kViewItem; }
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bool IsContentLayoutItem() const { return m_ItemType == kContentItem; }
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CXFA_ViewLayoutItem* AsViewLayoutItem();
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const CXFA_ViewLayoutItem* AsViewLayoutItem() const;
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CXFA_ContentLayoutItem* AsContentLayoutItem();
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const CXFA_ContentLayoutItem* AsContentLayoutItem() const;
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const CXFA_ViewLayoutItem* GetPage() const;
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CXFA_Node* GetFormNode() const { return m_pFormNode; }
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void SetFormNode(CXFA_Node* pNode);
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protected:
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enum ItemType { kViewItem, kContentItem };
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CXFA_LayoutItem(CXFA_Node* pNode, ItemType type);
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private:
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const ItemType m_ItemType;
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cppgc::Member<CXFA_Node> m_pFormNode;
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};
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inline CXFA_ViewLayoutItem* ToViewLayoutItem(CXFA_LayoutItem* item) {
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return item ? item->AsViewLayoutItem() : nullptr;
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}
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inline CXFA_ContentLayoutItem* ToContentLayoutItem(CXFA_LayoutItem* item) {
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return item ? item->AsContentLayoutItem() : nullptr;
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}
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void XFA_ReleaseLayoutItem(CXFA_LayoutItem* pLayoutItem);
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#endif // XFA_FXFA_LAYOUT_CXFA_LAYOUTITEM_H_
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