Line data    Source code

       1             : /* This Source Code Form is subject to the terms of the Mozilla Public
       2             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       3             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       4             : 
       5             : #ifndef nsHtml5Speculation_h
       6             : #define nsHtml5Speculation_h
       7             : 
       8             : #include "nsHtml5OwningUTF16Buffer.h"
       9             : #include "nsAHtml5TreeBuilderState.h"
      10             : #include "nsHtml5TreeOperation.h"
      11             : #include "nsAHtml5TreeOpSink.h"
      12             : #include "nsTArray.h"
      13             : #include "nsAutoPtr.h"
      14             : #include "mozilla/Attributes.h"
      15             : 
      16             : class nsHtml5Speculation final : public nsAHtml5TreeOpSink
      17             : {
      18             :   public:
      19             :     nsHtml5Speculation(nsHtml5OwningUTF16Buffer* aBuffer,
      20             :                        int32_t aStart, 
      21             :                        int32_t aStartLineNumber, 
      22             :                        nsAHtml5TreeBuilderState* aSnapshot);
      23             :     
      24             :     ~nsHtml5Speculation();
      25             : 
      26           0 :     nsHtml5OwningUTF16Buffer* GetBuffer()
      27             :     {
      28           0 :       return mBuffer;
      29             :     }
      30             :     
      31           0 :     int32_t GetStart()
      32             :     {
      33           0 :       return mStart;
      34             :     }
      35             : 
      36           5 :     int32_t GetStartLineNumber()
      37             :     {
      38           5 :       return mStartLineNumber;
      39             :     }
      40             :     
      41          10 :     nsAHtml5TreeBuilderState* GetSnapshot()
      42             :     {
      43          10 :       return mSnapshot;
      44             :     }
      45             : 
      46             :     /**
      47             :      * Flush the operations from the tree operations from the argument
      48             :      * queue unconditionally.
      49             :      */
      50             :     virtual void MoveOpsFrom(nsTArray<nsHtml5TreeOperation>& aOpQueue);
      51             :     
      52             :     void FlushToSink(nsAHtml5TreeOpSink* aSink);
      53             : 
      54             :   private:
      55             :     /**
      56             :      * The first buffer in the pending UTF-16 buffer queue
      57             :      */
      58             :     RefPtr<nsHtml5OwningUTF16Buffer>  mBuffer;
      59             :     
      60             :     /**
      61             :      * The start index of this speculation in the first buffer
      62             :      */
      63             :     int32_t                             mStart;
      64             : 
      65             :     /**
      66             :      * The current line number at the start of the speculation
      67             :      */
      68             :     int32_t                             mStartLineNumber;
      69             :     
      70             :     nsAutoPtr<nsAHtml5TreeBuilderState> mSnapshot;
      71             : 
      72             :     nsTArray<nsHtml5TreeOperation>      mOpQueue;
      73             : };
      74             : 
      75             : #endif // nsHtml5Speculation_h