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/*
 * Copyright (C) 2006, 2008, 2010 Apple Inc. All rights reserved.
 * 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 TextControlInnerElements_h
#define TextControlInnerElements_h

#include "HTMLDivElement.h"
#include "SpeechInputListener.h"
#include "Timer.h"
#include <wtf/Forward.h>

namespace WebCore {

class SpeechInput;

class TextControlInnerElement : public HTMLDivElement {
public:
    static PassRefPtr<TextControlInnerElement> create(HTMLElement* shadowParent);

    void attachInnerElement(Node*, PassRefPtr<RenderStyle>, RenderArena*);

protected:
    TextControlInnerElement(Document*, HTMLElement* shadowParent = 0);

private:
    virtual bool isMouseFocusable() const { return false; } 
    virtual bool isShadowNode() const { return m_shadowParent.get(); }
    virtual ContainerNode* shadowParentNode() { return m_shadowParent.get(); }
    virtual bool isSpellCheckingEnabled() const;
    void setShadowParentNode(HTMLElement* shadowParent) { m_shadowParent = shadowParent; }

    RefPtr<HTMLElement> m_shadowParent;
};

class TextControlInnerTextElement : public TextControlInnerElement {
public:
    static PassRefPtr<TextControlInnerTextElement> create(Document*, HTMLElement* shadowParent);

    virtual void defaultEventHandler(Event*);

private:
    TextControlInnerTextElement(Document*, HTMLElement* shadowParent);
    virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);  
};

class SearchFieldResultsButtonElement : public TextControlInnerElement {
public:
    static PassRefPtr<SearchFieldResultsButtonElement> create(Document*);

    virtual void defaultEventHandler(Event*);

private:
    SearchFieldResultsButtonElement(Document*);
};

class SearchFieldCancelButtonElement : public TextControlInnerElement {
public:
    static PassRefPtr<SearchFieldCancelButtonElement> create(Document*);

    virtual void defaultEventHandler(Event*);

private:
    SearchFieldCancelButtonElement(Document*);

    virtual void detach();

    bool m_capturing;
};

class SpinButtonElement : public TextControlInnerElement {
public:
    enum UpDownState {
        Indeterminate, // Hovered, but the event is not handled.
        Down,
        Up,
    };

    static PassRefPtr<SpinButtonElement> create(HTMLElement*);
    UpDownState upDownState() const { return m_upDownState; }

private:
    SpinButtonElement(HTMLElement*);

    virtual bool isSpinButtonElement() const { return true; }
    // FIXME: shadowAncestorNode() should be const.
    virtual bool isEnabledFormControl() const { return static_cast<Element*>(const_cast<SpinButtonElement*>(this)->shadowAncestorNode())->isEnabledFormControl(); }
    virtual bool isReadOnlyFormControl() const { return static_cast<Element*>(const_cast<SpinButtonElement*>(this)->shadowAncestorNode())->isReadOnlyFormControl(); }
    virtual void defaultEventHandler(Event*);
    void startRepeatingTimer();
    void stopRepeatingTimer();
    void repeatingTimerFired(Timer<SpinButtonElement>*);
    virtual void setHovered(bool = true);

    bool m_capturing;
    UpDownState m_upDownState;
    UpDownState m_pressStartingState;
    Timer<SpinButtonElement> m_repeatingTimer;
};

#if ENABLE(INPUT_SPEECH)

class InputFieldSpeechButtonElement
    : public TextControlInnerElement,
      public SpeechInputListener {
public:
    enum SpeechInputState {
        Idle,
        Recording,
        Recognizing,
    };

    static PassRefPtr<InputFieldSpeechButtonElement> create(HTMLElement*);
    virtual ~InputFieldSpeechButtonElement();

    virtual void detach();
    virtual void defaultEventHandler(Event*);
    SpeechInputState state() const { return m_state; }

    // SpeechInputListener methods.
    void didCompleteRecording(int);
    void didCompleteRecognition(int);
    void setRecognitionResult(int, const SpeechInputResultArray&);

private:
    InputFieldSpeechButtonElement(HTMLElement*);
    SpeechInput* speechInput();
    void setState(SpeechInputState state);

    bool m_capturing;
    SpeechInputState m_state;
    int m_listenerId;
    SpeechInputResultArray m_results;
};

#endif // ENABLE(INPUT_SPEECH)

} // namespace

#endif