The Tor Browser / file comparison
comparison: editor/txtsvc/src/nsTextServicesDocument.h
editor/txtsvc/src/nsTextServicesDocument.h
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- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:8603a2d71858 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nsTextServicesDocument_h__ | |
| 7 #define nsTextServicesDocument_h__ | |
| 8 | |
| 9 #include "nsCOMPtr.h" | |
| 10 #include "nsCycleCollectionParticipant.h" | |
| 11 #include "nsIEditActionListener.h" | |
| 12 #include "nsISupportsImpl.h" | |
| 13 #include "nsITextServicesDocument.h" | |
| 14 #include "nsIWeakReferenceUtils.h" | |
| 15 #include "nsTArray.h" | |
| 16 #include "nscore.h" | |
| 17 | |
| 18 class OffsetEntry; | |
| 19 class nsIAtom; | |
| 20 class nsIContent; | |
| 21 class nsIContentIterator; | |
| 22 class nsIDOMCharacterData; | |
| 23 class nsIDOMDocument; | |
| 24 class nsIDOMNode; | |
| 25 class nsIDOMRange; | |
| 26 class nsIEditor; | |
| 27 class nsISelection; | |
| 28 class nsISelectionController; | |
| 29 class nsITextServicesFilter; | |
| 30 class nsString; | |
| 31 | |
| 32 /** implementation of a text services object. | |
| 33 * | |
| 34 */ | |
| 35 class nsTextServicesDocument : public nsITextServicesDocument, | |
| 36 public nsIEditActionListener | |
| 37 { | |
| 38 private: | |
| 39 static nsIAtom *sAAtom; | |
| 40 static nsIAtom *sAddressAtom; | |
| 41 static nsIAtom *sBigAtom; | |
| 42 static nsIAtom *sBAtom; | |
| 43 static nsIAtom *sCiteAtom; | |
| 44 static nsIAtom *sCodeAtom; | |
| 45 static nsIAtom *sDfnAtom; | |
| 46 static nsIAtom *sEmAtom; | |
| 47 static nsIAtom *sFontAtom; | |
| 48 static nsIAtom *sIAtom; | |
| 49 static nsIAtom *sKbdAtom; | |
| 50 static nsIAtom *sKeygenAtom; | |
| 51 static nsIAtom *sNobrAtom; | |
| 52 static nsIAtom *sSAtom; | |
| 53 static nsIAtom *sSampAtom; | |
| 54 static nsIAtom *sSmallAtom; | |
| 55 static nsIAtom *sSpacerAtom; | |
| 56 static nsIAtom *sSpanAtom; | |
| 57 static nsIAtom *sStrikeAtom; | |
| 58 static nsIAtom *sStrongAtom; | |
| 59 static nsIAtom *sSubAtom; | |
| 60 static nsIAtom *sSupAtom; | |
| 61 static nsIAtom *sTtAtom; | |
| 62 static nsIAtom *sUAtom; | |
| 63 static nsIAtom *sVarAtom; | |
| 64 static nsIAtom *sWbrAtom; | |
| 65 | |
| 66 typedef enum { eIsDone=0, // No iterator (I), or iterator doesn't point to anything valid. | |
| 67 eValid, // I points to first text node (TN) in current block (CB). | |
| 68 ePrev, // No TN in CB, I points to first TN in prev block. | |
| 69 eNext // No TN in CB, I points to first TN in next block. | |
| 70 } TSDIteratorStatus; | |
| 71 | |
| 72 nsCOMPtr<nsIDOMDocument> mDOMDocument; | |
| 73 nsCOMPtr<nsISelectionController>mSelCon; | |
| 74 nsWeakPtr mEditor; // avoid a cycle with the spell checker and editor | |
| 75 nsCOMPtr<nsIContentIterator> mIterator; | |
| 76 TSDIteratorStatus mIteratorStatus; | |
| 77 nsCOMPtr<nsIContent> mPrevTextBlock; | |
| 78 nsCOMPtr<nsIContent> mNextTextBlock; | |
| 79 nsTArray<OffsetEntry*> mOffsetTable; | |
| 80 | |
| 81 int32_t mSelStartIndex; | |
| 82 int32_t mSelStartOffset; | |
| 83 int32_t mSelEndIndex; | |
| 84 int32_t mSelEndOffset; | |
| 85 | |
| 86 nsCOMPtr<nsIDOMRange> mExtent; | |
| 87 | |
| 88 nsCOMPtr<nsITextServicesFilter> mTxtSvcFilter; | |
| 89 | |
| 90 public: | |
| 91 | |
| 92 /** The default constructor. | |
| 93 */ | |
| 94 nsTextServicesDocument(); | |
| 95 | |
| 96 /** The default destructor. | |
| 97 */ | |
| 98 virtual ~nsTextServicesDocument(); | |
| 99 | |
| 100 /** To be called at module init | |
| 101 */ | |
| 102 static void RegisterAtoms(); | |
| 103 | |
| 104 /* Macro for AddRef(), Release(), and QueryInterface() */ | |
| 105 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 106 NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTextServicesDocument, nsITextServicesDocument) | |
| 107 | |
| 108 /* nsITextServicesDocument method implementations. */ | |
| 109 NS_IMETHOD InitWithEditor(nsIEditor *aEditor); | |
| 110 NS_IMETHOD GetDocument(nsIDOMDocument **aDoc); | |
| 111 NS_IMETHOD SetExtent(nsIDOMRange* aDOMRange); | |
| 112 NS_IMETHOD ExpandRangeToWordBoundaries(nsIDOMRange *aRange); | |
| 113 NS_IMETHOD SetFilter(nsITextServicesFilter *aFilter); | |
| 114 NS_IMETHOD GetCurrentTextBlock(nsString *aStr); | |
| 115 NS_IMETHOD FirstBlock(); | |
| 116 NS_IMETHOD LastSelectedBlock(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength); | |
| 117 NS_IMETHOD PrevBlock(); | |
| 118 NS_IMETHOD NextBlock(); | |
| 119 NS_IMETHOD IsDone(bool *aIsDone); | |
| 120 NS_IMETHOD SetSelection(int32_t aOffset, int32_t aLength); | |
| 121 NS_IMETHOD ScrollSelectionIntoView(); | |
| 122 NS_IMETHOD DeleteSelection(); | |
| 123 NS_IMETHOD InsertText(const nsString *aText); | |
| 124 | |
| 125 /* nsIEditActionListener method implementations. */ | |
| 126 NS_IMETHOD WillInsertNode(nsIDOMNode *aNode, | |
| 127 nsIDOMNode *aParent, | |
| 128 int32_t aPosition); | |
| 129 NS_IMETHOD DidInsertNode(nsIDOMNode *aNode, | |
| 130 nsIDOMNode *aParent, | |
| 131 int32_t aPosition, | |
| 132 nsresult aResult); | |
| 133 | |
| 134 NS_IMETHOD WillDeleteNode(nsIDOMNode *aChild); | |
| 135 NS_IMETHOD DidDeleteNode(nsIDOMNode *aChild, nsresult aResult); | |
| 136 | |
| 137 NS_IMETHOD WillSplitNode(nsIDOMNode * aExistingRightNode, | |
| 138 int32_t aOffset); | |
| 139 NS_IMETHOD DidSplitNode(nsIDOMNode *aExistingRightNode, | |
| 140 int32_t aOffset, | |
| 141 nsIDOMNode *aNewLeftNode, | |
| 142 nsresult aResult); | |
| 143 | |
| 144 NS_IMETHOD WillJoinNodes(nsIDOMNode *aLeftNode, | |
| 145 nsIDOMNode *aRightNode, | |
| 146 nsIDOMNode *aParent); | |
| 147 NS_IMETHOD DidJoinNodes(nsIDOMNode *aLeftNode, | |
| 148 nsIDOMNode *aRightNode, | |
| 149 nsIDOMNode *aParent, | |
| 150 nsresult aResult); | |
| 151 // these listen methods are unused: | |
| 152 NS_IMETHOD WillCreateNode(const nsAString& aTag, nsIDOMNode *aParent, int32_t aPosition); | |
| 153 NS_IMETHOD DidCreateNode(const nsAString& aTag, nsIDOMNode *aNode, nsIDOMNode *aParent, int32_t aPosition, nsresult aResult); | |
| 154 NS_IMETHOD WillInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString); | |
| 155 NS_IMETHOD DidInsertText(nsIDOMCharacterData *aTextNode, int32_t aOffset, const nsAString &aString, nsresult aResult); | |
| 156 NS_IMETHOD WillDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength); | |
| 157 NS_IMETHOD DidDeleteText(nsIDOMCharacterData *aTextNode, int32_t aOffset, int32_t aLength, nsresult aResult); | |
| 158 NS_IMETHOD WillDeleteSelection(nsISelection *aSelection); | |
| 159 NS_IMETHOD DidDeleteSelection(nsISelection *aSelection); | |
| 160 | |
| 161 /* Helper functions */ | |
| 162 static nsresult GetRangeEndPoints(nsIDOMRange *aRange, nsIDOMNode **aParent1, int32_t *aOffset1, nsIDOMNode **aParent2, int32_t *aOffset2); | |
| 163 static nsresult CreateRange(nsIDOMNode *aStartParent, int32_t aStartOffset, nsIDOMNode *aEndParent, int32_t aEndOffset, nsIDOMRange **aRange); | |
| 164 | |
| 165 private: | |
| 166 /* nsTextServicesDocument private methods. */ | |
| 167 | |
| 168 nsresult CreateContentIterator(nsIDOMRange *aRange, nsIContentIterator **aIterator); | |
| 169 | |
| 170 nsresult GetDocumentContentRootNode(nsIDOMNode **aNode); | |
| 171 nsresult CreateDocumentContentRange(nsIDOMRange **aRange); | |
| 172 nsresult CreateDocumentContentRootToNodeOffsetRange(nsIDOMNode *aParent, int32_t aOffset, bool aToStart, nsIDOMRange **aRange); | |
| 173 nsresult CreateDocumentContentIterator(nsIContentIterator **aIterator); | |
| 174 | |
| 175 nsresult AdjustContentIterator(); | |
| 176 | |
| 177 static nsresult FirstTextNode(nsIContentIterator *aIterator, TSDIteratorStatus *IteratorStatus); | |
| 178 static nsresult LastTextNode(nsIContentIterator *aIterator, TSDIteratorStatus *IteratorStatus); | |
| 179 | |
| 180 static nsresult FirstTextNodeInCurrentBlock(nsIContentIterator *aIterator); | |
| 181 static nsresult FirstTextNodeInPrevBlock(nsIContentIterator *aIterator); | |
| 182 static nsresult FirstTextNodeInNextBlock(nsIContentIterator *aIterator); | |
| 183 | |
| 184 nsresult GetFirstTextNodeInPrevBlock(nsIContent **aContent); | |
| 185 nsresult GetFirstTextNodeInNextBlock(nsIContent **aContent); | |
| 186 | |
| 187 static bool IsBlockNode(nsIContent *aContent); | |
| 188 static bool IsTextNode(nsIContent *aContent); | |
| 189 static bool IsTextNode(nsIDOMNode *aNode); | |
| 190 | |
| 191 static bool DidSkip(nsIContentIterator* aFilteredIter); | |
| 192 static void ClearDidSkip(nsIContentIterator* aFilteredIter); | |
| 193 | |
| 194 static bool HasSameBlockNodeParent(nsIContent *aContent1, nsIContent *aContent2); | |
| 195 | |
| 196 nsresult SetSelectionInternal(int32_t aOffset, int32_t aLength, bool aDoUpdate); | |
| 197 nsresult GetSelection(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength); | |
| 198 nsresult GetCollapsedSelection(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength); | |
| 199 nsresult GetUncollapsedSelection(TSDBlockSelectionStatus *aSelStatus, int32_t *aSelOffset, int32_t *aSelLength); | |
| 200 | |
| 201 bool SelectionIsCollapsed(); | |
| 202 bool SelectionIsValid(); | |
| 203 | |
| 204 static nsresult CreateOffsetTable(nsTArray<OffsetEntry*> *aOffsetTable, | |
| 205 nsIContentIterator *aIterator, | |
| 206 TSDIteratorStatus *aIteratorStatus, | |
| 207 nsIDOMRange *aIterRange, | |
| 208 nsString *aStr); | |
| 209 static nsresult ClearOffsetTable(nsTArray<OffsetEntry*> *aOffsetTable); | |
| 210 | |
| 211 static nsresult NodeHasOffsetEntry(nsTArray<OffsetEntry*> *aOffsetTable, | |
| 212 nsIDOMNode *aNode, | |
| 213 bool *aHasEntry, | |
| 214 int32_t *aEntryIndex); | |
| 215 | |
| 216 nsresult RemoveInvalidOffsetEntries(); | |
| 217 nsresult SplitOffsetEntry(int32_t aTableIndex, int32_t aOffsetIntoEntry); | |
| 218 | |
| 219 static nsresult FindWordBounds(nsTArray<OffsetEntry*> *offsetTable, | |
| 220 nsString *blockStr, | |
| 221 nsIDOMNode *aNode, int32_t aNodeOffset, | |
| 222 nsIDOMNode **aWordStartNode, | |
| 223 int32_t *aWordStartOffset, | |
| 224 nsIDOMNode **aWordEndNode, | |
| 225 int32_t *aWordEndOffset); | |
| 226 | |
| 227 #ifdef DEBUG_kin | |
| 228 void PrintOffsetTable(); | |
| 229 void PrintContentNode(nsIContent *aContent); | |
| 230 #endif | |
| 231 }; | |
| 232 | |
| 233 #endif // nsTextServicesDocument_h__ |
