mirror of
https://github.com/classilla/tenfourfox.git
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76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsFilteredContentIterator_h__
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#define nsFilteredContentIterator_h__
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#include "nsCOMPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIContentIterator.h"
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#include "nsISupportsImpl.h"
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#include "nscore.h"
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class nsIAtom;
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class nsIDOMNode;
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class nsIDOMRange;
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class nsINode;
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class nsITextServicesFilter;
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class nsRange;
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class nsFilteredContentIterator final : public nsIContentIterator
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{
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public:
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// nsISupports interface...
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS(nsFilteredContentIterator)
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explicit nsFilteredContentIterator(nsITextServicesFilter* aFilter);
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/* nsIContentIterator */
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virtual nsresult Init(nsINode* aRoot) override;
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virtual nsresult Init(nsIDOMRange* aRange) override;
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virtual void First() override;
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virtual void Last() override;
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virtual void Next() override;
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virtual void Prev() override;
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virtual nsINode *GetCurrentNode() override;
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virtual bool IsDone() override;
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virtual nsresult PositionAt(nsINode* aCurNode) override;
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/* Helpers */
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bool DidSkip() { return mDidSkip; }
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void ClearDidSkip() { mDidSkip = false; }
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protected:
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nsFilteredContentIterator() { }
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virtual ~nsFilteredContentIterator();
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// enum to give us the direction
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typedef enum {eDirNotSet, eForward, eBackward} eDirectionType;
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nsresult AdvanceNode(nsIDOMNode* aNode, nsIDOMNode*& aNewNode, eDirectionType aDir);
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void CheckAdvNode(nsIDOMNode* aNode, bool& aDidSkip, eDirectionType aDir);
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nsresult SwitchDirections(bool aChangeToForward);
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nsCOMPtr<nsIContentIterator> mCurrentIterator;
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nsCOMPtr<nsIContentIterator> mIterator;
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nsCOMPtr<nsIContentIterator> mPreIterator;
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nsCOMPtr<nsIAtom> mBlockQuoteAtom;
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nsCOMPtr<nsIAtom> mScriptAtom;
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nsCOMPtr<nsIAtom> mTextAreaAtom;
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nsCOMPtr<nsIAtom> mSelectAreaAtom;
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nsCOMPtr<nsIAtom> mMapAtom;
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nsCOMPtr<nsITextServicesFilter> mFilter;
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RefPtr<nsRange> mRange;
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bool mDidSkip;
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bool mIsOutOfRange;
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eDirectionType mDirection;
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};
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#endif
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