michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef nsHtml5Speculation_h
michael@0: #define nsHtml5Speculation_h
michael@0: 
michael@0: #include "nsHtml5OwningUTF16Buffer.h"
michael@0: #include "nsAHtml5TreeBuilderState.h"
michael@0: #include "nsHtml5TreeOperation.h"
michael@0: #include "nsAHtml5TreeOpSink.h"
michael@0: #include "nsTArray.h"
michael@0: #include "nsAutoPtr.h"
michael@0: #include "mozilla/Attributes.h"
michael@0: 
michael@0: class nsHtml5Speculation MOZ_FINAL : public nsAHtml5TreeOpSink
michael@0: {
michael@0:   public:
michael@0:     nsHtml5Speculation(nsHtml5OwningUTF16Buffer* aBuffer,
michael@0:                        int32_t aStart, 
michael@0:                        int32_t aStartLineNumber, 
michael@0:                        nsAHtml5TreeBuilderState* aSnapshot);
michael@0:     
michael@0:     ~nsHtml5Speculation();
michael@0: 
michael@0:     nsHtml5OwningUTF16Buffer* GetBuffer()
michael@0:     {
michael@0:       return mBuffer;
michael@0:     }
michael@0:     
michael@0:     int32_t GetStart()
michael@0:     {
michael@0:       return mStart;
michael@0:     }
michael@0: 
michael@0:     int32_t GetStartLineNumber()
michael@0:     {
michael@0:       return mStartLineNumber;
michael@0:     }
michael@0:     
michael@0:     nsAHtml5TreeBuilderState* GetSnapshot()
michael@0:     {
michael@0:       return mSnapshot;
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Flush the operations from the tree operations from the argument
michael@0:      * queue unconditionally.
michael@0:      */
michael@0:     virtual void MoveOpsFrom(nsTArray<nsHtml5TreeOperation>& aOpQueue);
michael@0:     
michael@0:     void FlushToSink(nsAHtml5TreeOpSink* aSink);
michael@0: 
michael@0:   private:
michael@0:     /**
michael@0:      * The first buffer in the pending UTF-16 buffer queue
michael@0:      */
michael@0:     nsRefPtr<nsHtml5OwningUTF16Buffer>  mBuffer;
michael@0:     
michael@0:     /**
michael@0:      * The start index of this speculation in the first buffer
michael@0:      */
michael@0:     int32_t                             mStart;
michael@0: 
michael@0:     /**
michael@0:      * The current line number at the start of the speculation
michael@0:      */
michael@0:     int32_t                             mStartLineNumber;
michael@0:     
michael@0:     nsAutoPtr<nsAHtml5TreeBuilderState> mSnapshot;
michael@0: 
michael@0:     nsTArray<nsHtml5TreeOperation>      mOpQueue;
michael@0: };
michael@0: 
michael@0: #endif // nsHtml5Speculation_h