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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SpellCheckRequester_h
#define SpellCheckRequester_h
#include "core/dom/Element.h"
#include "core/dom/Range.h"
#include "platform/Timer.h"
#include "platform/text/TextChecking.h"
#include "wtf/Deque.h"
#include "wtf/Noncopyable.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class LocalFrame;
class Node;
class SpellCheckRequester;
class TextCheckerClient;
class SpellCheckRequest FINAL : public TextCheckingRequest {
public:
static PassRefPtr<SpellCheckRequest> create(TextCheckingTypeMask, TextCheckingProcessType, PassRefPtrWillBeRawPtr<Range> checkingRange, PassRefPtrWillBeRawPtr<Range> paragraphRange, int requestNumber = 0);
virtual ~SpellCheckRequest();
PassRefPtrWillBeRawPtr<Range> checkingRange() const { return m_checkingRange; }
PassRefPtrWillBeRawPtr<Range> paragraphRange() const { return m_paragraphRange; }
PassRefPtrWillBeRawPtr<Element> rootEditableElement() const { return m_rootEditableElement; }
void setCheckerAndSequence(SpellCheckRequester*, int sequence);
void requesterDestroyed();
virtual const TextCheckingRequestData& data() const OVERRIDE;
virtual void didSucceed(const Vector<TextCheckingResult>&) OVERRIDE;
virtual void didCancel() OVERRIDE;
int requestNumber() const { return m_requestNumber; }
private:
SpellCheckRequest(PassRefPtrWillBeRawPtr<Range> checkingRange, PassRefPtrWillBeRawPtr<Range> paragraphRange, const String&, TextCheckingTypeMask, TextCheckingProcessType, const Vector<uint32_t>& documentMarkersInRange, const Vector<unsigned>& documentMarkerOffsets, int requestNumber);
SpellCheckRequester* m_requester;
RefPtrWillBePersistent<Range> m_checkingRange;
RefPtrWillBePersistent<Range> m_paragraphRange;
RefPtrWillBePersistent<Element> m_rootEditableElement;
TextCheckingRequestData m_requestData;
int m_requestNumber;
};
class SpellCheckRequester {
WTF_MAKE_NONCOPYABLE(SpellCheckRequester); WTF_MAKE_FAST_ALLOCATED;
public:
friend class SpellCheckRequest;
explicit SpellCheckRequester(LocalFrame&);
~SpellCheckRequester();
bool isAsynchronousEnabled() const;
bool isCheckable(Range*) const;
void requestCheckingFor(PassRefPtr<SpellCheckRequest>);
void cancelCheck();
int lastRequestSequence() const
{
return m_lastRequestSequence;
}
int lastProcessedSequence() const
{
return m_lastProcessedSequence;
}
private:
typedef Deque<RefPtr<SpellCheckRequest> > RequestQueue;
bool canCheckAsynchronously(Range*) const;
TextCheckerClient& client() const;
void timerFiredToProcessQueuedRequest(Timer<SpellCheckRequester>*);
void invokeRequest(PassRefPtr<SpellCheckRequest>);
void enqueueRequest(PassRefPtr<SpellCheckRequest>);
void didCheckSucceed(int sequence, const Vector<TextCheckingResult>&);
void didCheckCancel(int sequence);
void didCheck(int sequence, const Vector<TextCheckingResult>&);
LocalFrame& m_frame;
int m_lastRequestSequence;
int m_lastProcessedSequence;
Timer<SpellCheckRequester> m_timerToProcessQueuedRequest;
RefPtr<SpellCheckRequest> m_processingRequest;
RequestQueue m_requestQueue;
};
} // namespace WebCore
#endif // SpellCheckRequester_h
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