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       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef nsFind_h__
       8             : #define nsFind_h__
       9             : 
      10             : #include "nsIFind.h"
      11             : 
      12             : #include "nsCOMPtr.h"
      13             : #include "nsCycleCollectionParticipant.h"
      14             : #include "nsIDOMNode.h"
      15             : #include "nsIDOMRange.h"
      16             : #include "nsIContentIterator.h"
      17             : #include "nsIWordBreaker.h"
      18             : 
      19             : class nsIContent;
      20             : 
      21             : #define NS_FIND_CONTRACTID "@mozilla.org/embedcomp/rangefind;1"
      22             : 
      23             : #define NS_FIND_CID \
      24             :   {0x471f4944, 0x1dd2, 0x11b2, {0x87, 0xac, 0x90, 0xbe, 0x0a, 0x51, 0xd6, 0x09}}
      25             : 
      26             : class nsFindContentIterator;
      27             : 
      28             : class nsFind : public nsIFind
      29             : {
      30             : public:
      31             :   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
      32             :   NS_DECL_NSIFIND
      33           0 :   NS_DECL_CYCLE_COLLECTION_CLASS(nsFind)
      34             : 
      35             :   nsFind();
      36             : 
      37             : protected:
      38             :   virtual ~nsFind();
      39             : 
      40             :   // Parameters set from the interface:
      41             :   //nsCOMPtr<nsIDOMRange> mRange;   // search only in this range
      42             :   bool mFindBackward;
      43             :   bool mCaseSensitive;
      44             : 
      45             :   // Use "find entire words" mode by setting to a word breaker or null, to
      46             :   // disable "entire words" mode.
      47             :   nsCOMPtr<nsIWordBreaker> mWordBreaker;
      48             : 
      49             :   int32_t mIterOffset;
      50             :   nsCOMPtr<nsIDOMNode> mIterNode;
      51             : 
      52             :   // Last block parent, so that we will notice crossing block boundaries:
      53             :   nsCOMPtr<nsIDOMNode> mLastBlockParent;
      54             :   nsresult GetBlockParent(nsIDOMNode* aNode, nsIDOMNode** aParent);
      55             : 
      56             :   // Utility routines:
      57             :   bool IsTextNode(nsIDOMNode* aNode);
      58             :   bool IsBlockNode(nsIContent* aNode);
      59             :   bool SkipNode(nsIContent* aNode);
      60             :   bool IsVisibleNode(nsIDOMNode* aNode);
      61             : 
      62             :   // Move in the right direction for our search:
      63             :   nsresult NextNode(nsIDOMRange* aSearchRange,
      64             :                     nsIDOMRange* aStartPoint, nsIDOMRange* aEndPoint,
      65             :                     bool aContinueOk);
      66             : 
      67             :   // Get the first character from the next node (last if mFindBackward).
      68             :   char16_t PeekNextChar(nsIDOMRange* aSearchRange,
      69             :                         nsIDOMRange* aStartPoint,
      70             :                         nsIDOMRange* aEndPoint);
      71             : 
      72             :   // Reset variables before returning -- don't hold any references.
      73             :   void ResetAll();
      74             : 
      75             :   // The iterator we use to move through the document:
      76             :   nsresult InitIterator(nsIDOMNode* aStartNode, int32_t aStartOffset,
      77             :                         nsIDOMNode* aEndNode, int32_t aEndOffset);
      78             :   RefPtr<nsFindContentIterator> mIterator;
      79             : 
      80             :   friend class PeekNextCharRestoreState;
      81             : };
      82             : 
      83             : #endif // nsFind_h__