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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsTextServicesDocument_h__
#define nsTextServicesDocument_h__
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsIEditActionListener.h"
#include "nsISupportsImpl.h"
#include "nsITextServicesDocument.h"
#include "nsIWeakReferenceUtils.h"
#include "nsTArray.h"
#include "nscore.h"
class OffsetEntry;
class nsIAtom;
class nsIContent;
class nsIContentIterator;
class nsIDOMCharacterData;
class nsIDOMDocument;
class nsIDOMNode;
class nsIDOMRange;
class nsIEditor;
class nsISelection;
class nsISelectionController;
class nsITextServicesFilter;
class nsString;
/** implementation of a text services object.
*
*/
class nsTextServicesDocument final : public nsITextServicesDocument,
public nsIEditActionListener
{
private:
static nsIAtom *sAAtom;
static nsIAtom *sAddressAtom;
static nsIAtom *sBigAtom;
static nsIAtom *sBAtom;
static nsIAtom *sCiteAtom;
static nsIAtom *sCodeAtom;
static nsIAtom *sDfnAtom;
static nsIAtom *sEmAtom;
static nsIAtom *sFontAtom;
static nsIAtom *sIAtom;
static nsIAtom *sKbdAtom;
static nsIAtom *sKeygenAtom;
static nsIAtom *sNobrAtom;
static nsIAtom *sSAtom;
static nsIAtom *sSampAtom;
static nsIAtom *sSmallAtom;
static nsIAtom *sSpacerAtom;
static nsIAtom *sSpanAtom;
static nsIAtom *sStrikeAtom;
static nsIAtom *sStrongAtom;
static nsIAtom *sSubAtom;
static nsIAtom *sSupAtom;
static nsIAtom *sTtAtom;
static nsIAtom *sUAtom;
static nsIAtom *sVarAtom;
static nsIAtom *sWbrAtom;
typedef enum { eIsDone=0, // No iterator (I), or iterator doesn't point to anything valid.
eValid, // I points to first text node (TN) in current block (CB).
ePrev, // No TN in CB, I points to first TN in prev block.
eNext // No TN in CB, I points to first TN in next block.
} TSDIteratorStatus;
nsCOMPtr<nsIDOMDocument> mDOMDocument;
nsCOMPtr<nsISelectionController>mSelCon;
nsWeakPtr mEditor; // avoid a cycle with the spell checker and editor
nsCOMPtr<nsIContentIterator> mIterator;
TSDIteratorStatus mIteratorStatus;
nsCOMPtr<nsIContent> mPrevTextBlock;
nsCOMPtr<nsIContent> mNextTextBlock;
nsTArray<OffsetEntry*> mOffsetTable;
int32_t mSelStartIndex;
int32_t mSelStartOffset;
int32_t mSelEndIndex;
int32_t mSelEndOffset;
RefPtr<nsRange> mExtent;
nsCOMPtr<nsITextServicesFilter> mTxtSvcFilter;
protected:
/** The default destructor.
*/
virtual ~nsTextServicesDocument();
public:
/** The default constructor.
*/
nsTextServicesDocument();
/** To be called at module init
*/
static void RegisterAtoms();
/* Macro for AddRef(), Release(), and QueryInterface() */
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTextServicesDocument, nsITextServicesDocument)
/* nsITextServicesDocument method implementations. */
NS_IMETHOD InitWithEditor(nsIEditor *aEditor) override;
NS_IMETHOD GetDocument(nsIDOMDocument **aDoc) override;
NS_IMETHOD SetExtent(nsIDOMRange* aDOMRange) override;
NS_IMETHOD ExpandRangeToWordBoundaries(nsIDOMRange *aRange) override;
NS_IMETHOD SetFilter(nsITextServicesFilter *aFilter) override;
NS_IMETHOD GetCurrentTextBlock(nsString *aStr) override;
NS_IMETHOD FirstBlock() override;
NS_IMETHOD LastSelectedBlock(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength) override;
NS_IMETHOD PrevBlock() override;
NS_IMETHOD NextBlock() override;
NS_IMETHOD IsDone(bool *aIsDone) override;
NS_IMETHOD SetSelection(int32_t aOffset, int32_t aLength) override;
NS_IMETHOD ScrollSelectionIntoView() override;
NS_IMETHOD DeleteSelection() override;
NS_IMETHOD InsertText(const nsString *aText) override;
/* nsIEditActionListener method implementations. */
NS_IMETHOD WillInsertNode(nsIDOMNode *aNode,
nsIDOMNode *aParent,
int32_t aPosition) override;
NS_IMETHOD DidInsertNode(nsIDOMNode *aNode,
nsIDOMNode *aParent,
int32_t aPosition,
nsresult aResult) override;
NS_IMETHOD WillDeleteNode(nsIDOMNode *aChild) override;
NS_IMETHOD DidDeleteNode(nsIDOMNode *aChild, nsresult aResult) override;
NS_IMETHOD WillSplitNode(nsIDOMNode * aExistingRightNode,
int32_t aOffset) override;
NS_IMETHOD DidSplitNode(nsIDOMNode *aExistingRightNode,
int32_t aOffset,
nsIDOMNode *aNewLeftNode,
nsresult aResult) override;
NS_IMETHOD WillJoinNodes(nsIDOMNode *aLeftNode,
nsIDOMNode *aRightNode,
nsIDOMNode *aParent) override;
NS_IMETHOD DidJoinNodes(nsIDOMNode *aLeftNode,
nsIDOMNode *aRightNode,
nsIDOMNode *aParent,
nsresult aResult) override;
// these listen methods are unused:
NS_IMETHOD WillCreateNode(const nsAString& aTag, nsIDOMNode *aParent, int32_t aPosition) override;
NS_IMETHOD DidCreateNode(const nsAString& aTag, nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition, nsresult aResult) override;
NS_IMETHOD WillInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString) override;
NS_IMETHOD DidInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString, nsresult aResult) override;
NS_IMETHOD WillDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength) override;
NS_IMETHOD DidDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength, nsresult aResult) override;
NS_IMETHOD WillDeleteSelection(nsISelection *aSelection) override;
NS_IMETHOD DidDeleteSelection(nsISelection *aSelection) override;
/* Helper functions */
static nsresult GetRangeEndPoints(nsRange* aRange, nsIDOMNode** aParent1,
int32_t* aOffset1, nsIDOMNode** aParent2,
int32_t* aOffset2);
static nsresult CreateRange(nsIDOMNode* aStartParent, int32_t aStartOffset,
nsIDOMNode* aEndParent, int32_t aEndOffset,
nsRange** aRange);
private:
/* nsTextServicesDocument private methods. */
nsresult CreateContentIterator(nsRange* aRange,
nsIContentIterator** aIterator);
nsresult GetDocumentContentRootNode(nsIDOMNode **aNode);
nsresult CreateDocumentContentRange(nsRange** aRange);
nsresult CreateDocumentContentRootToNodeOffsetRange(nsIDOMNode* aParent,
int32_t aOffset,
bool aToStart,
nsRange** aRange);
nsresult CreateDocumentContentIterator(nsIContentIterator **aIterator);
nsresult AdjustContentIterator();
static nsresult FirstTextNode(nsIContentIterator *aIterator, TSDIteratorStatus *IteratorStatus);
static nsresult LastTextNode(nsIContentIterator *aIterator, TSDIteratorStatus *IteratorStatus);
static nsresult FirstTextNodeInCurrentBlock(nsIContentIterator *aIterator);
static nsresult FirstTextNodeInPrevBlock(nsIContentIterator *aIterator);
static nsresult FirstTextNodeInNextBlock(nsIContentIterator *aIterator);
nsresult GetFirstTextNodeInPrevBlock(nsIContent **aContent);
nsresult GetFirstTextNodeInNextBlock(nsIContent **aContent);
static bool IsBlockNode(nsIContent *aContent);
static bool IsTextNode(nsIContent *aContent);
static bool IsTextNode(nsIDOMNode *aNode);
static bool DidSkip(nsIContentIterator* aFilteredIter);
static void ClearDidSkip(nsIContentIterator* aFilteredIter);
static bool HasSameBlockNodeParent(nsIContent *aContent1, nsIContent *aContent2);
nsresult SetSelectionInternal(int32_t aOffset, int32_t aLength, bool aDoUpdate);
nsresult GetSelection(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength);
nsresult GetCollapsedSelection(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength);
nsresult GetUncollapsedSelection(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength);
bool SelectionIsCollapsed();
bool SelectionIsValid();
static nsresult CreateOffsetTable(nsTArray<OffsetEntry*> *aOffsetTable,
nsIContentIterator *aIterator,
TSDIteratorStatus *aIteratorStatus,
nsRange* aIterRange, nsString* aStr);
static nsresult ClearOffsetTable(nsTArray<OffsetEntry*> *aOffsetTable);
static nsresult NodeHasOffsetEntry(nsTArray<OffsetEntry*> *aOffsetTable,
nsIDOMNode *aNode,
bool *aHasEntry,
int32_t *aEntryIndex);
nsresult RemoveInvalidOffsetEntries();
nsresult SplitOffsetEntry(int32_t aTableIndex, int32_t aOffsetIntoEntry);
static nsresult FindWordBounds(nsTArray<OffsetEntry*> *offsetTable,
nsString *blockStr,
nsIDOMNode *aNode, int32_t aNodeOffset,
nsIDOMNode **aWordStartNode,
int32_t *aWordStartOffset,
nsIDOMNode **aWordEndNode,
int32_t *aWordEndOffset);
};
#endif // nsTextServicesDocument_h__
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