/*

 * 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:

 *

 *     * Redistributions of source code must retain the above copyright

 * notice, this list of conditions and the following disclaimer.

 *     * 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.

 *     * Neither the name of Google Inc. nor the names of its

 * contributors may be used to endorse or promote products derived from

 * this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "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 THE COPYRIGHT

 * OWNER 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 AccessibilityUIElement_h

#define AccessibilityUIElement_h

#include "CppBoundClass.h"

#include "public/WebAccessibilityObject.h"

#include <wtf/Vector.h>

class AccessibilityUIElement : public CppBoundClass {

public:

    class Factory {

    public:

        virtual ~Factory() { }

        virtual AccessibilityUIElement* create(const WebKit::WebAccessibilityObject&) = 0;

    };

    AccessibilityUIElement(const WebKit::WebAccessibilityObject&, Factory*);

    virtual AccessibilityUIElement* getChildAtIndex(unsigned);

    virtual bool isRoot() const { return false; }

protected:

    const WebKit::WebAccessibilityObject& accessibilityObject() const { return m_accessibilityObject; }

    Factory* factory() const { return m_factory; }

private:

    // Bound methods and properties.

    void allAttributesCallback(const CppArgumentList&, CppVariant*);

    void attributesOfLinkedUIElementsCallback(const CppArgumentList&, CppVariant*);

    void attributesOfDocumentLinksCallback(const CppArgumentList&, CppVariant*);

    void attributesOfChildrenCallback(const CppArgumentList&, CppVariant*);

    void parametrizedAttributeNamesCallback(const CppArgumentList&, CppVariant*);

    void lineForIndexCallback(const CppArgumentList&, CppVariant*);

    void boundsForRangeCallback(const CppArgumentList&, CppVariant*);

    void stringForRangeCallback(const CppArgumentList&, CppVariant*);

    void childAtIndexCallback(const CppArgumentList&, CppVariant*);

    void elementAtPointCallback(const CppArgumentList&, CppVariant*);

    void attributesOfColumnHeadersCallback(const CppArgumentList&, CppVariant*);

    void attributesOfRowHeadersCallback(const CppArgumentList&, CppVariant*);

    void attributesOfColumnsCallback(const CppArgumentList&, CppVariant*);

    void attributesOfRowsCallback(const CppArgumentList&, CppVariant*);

    void attributesOfVisibleCellsCallback(const CppArgumentList&, CppVariant*);

    void attributesOfHeaderCallback(const CppArgumentList&, CppVariant*);

    void indexInTableCallback(const CppArgumentList&, CppVariant*);

    void rowIndexRangeCallback(const CppArgumentList&, CppVariant*);

    void columnIndexRangeCallback(const CppArgumentList&, CppVariant*);

    void cellForColumnAndRowCallback(const CppArgumentList&, CppVariant*);

    void titleUIElementCallback(const CppArgumentList&, CppVariant*);

    void setSelectedTextRangeCallback(const CppArgumentList&, CppVariant*);

    void attributeValueCallback(const CppArgumentList&, CppVariant*);

    void isAttributeSettableCallback(const CppArgumentList&, CppVariant*);

    void isActionSupportedCallback(const CppArgumentList&, CppVariant*);

    void parentElementCallback(const CppArgumentList&, CppVariant*);

    void incrementCallback(const CppArgumentList&, CppVariant*);

    void decrementCallback(const CppArgumentList&, CppVariant*);

    void fallbackCallback(const CppArgumentList&, CppVariant*);

    void childrenCountGetterCallback(CppVariant*);

    void descriptionGetterCallback(CppVariant*);

    void isEnabledGetterCallback(CppVariant*);

    void isSelectedGetterCallback(CppVariant*);

    void roleGetterCallback(CppVariant*);

    void titleGetterCallback(CppVariant*);

    CppVariant m_subrole;

    CppVariant m_language;

    CppVariant m_x;

    CppVariant m_y;

    CppVariant m_width;

    CppVariant m_height;

    CppVariant m_clickPointX;

    CppVariant m_clickPointY;

    CppVariant m_intValue;

    CppVariant m_minValue;

    CppVariant m_maxValue;

    CppVariant m_childrenCount;

    CppVariant m_insertionPointLineNumber;

    CppVariant m_selectedTextRange;

    CppVariant m_isRequired;

    CppVariant m_valueDescription;

    WebKit::WebAccessibilityObject m_accessibilityObject;

    Factory* m_factory;

};

class RootAccessibilityUIElement : public AccessibilityUIElement {

public:

    RootAccessibilityUIElement(const WebKit::WebAccessibilityObject&, Factory*);

    virtual AccessibilityUIElement* getChildAtIndex(unsigned);

    virtual bool isRoot() const { return true; }

};

// Provides simple lifetime management of the AccessibilityUIElement instances:

// all AccessibilityUIElements ever created from the controller are stored in

// a list and cleared explicitly.

class AccessibilityUIElementList : public AccessibilityUIElement::Factory {

public:

    AccessibilityUIElementList() { }

    virtual ~AccessibilityUIElementList();

    void clear();

    virtual AccessibilityUIElement* create(const WebKit::WebAccessibilityObject&);

    AccessibilityUIElement* createRoot(const WebKit::WebAccessibilityObject&);

private:

    typedef Vector<AccessibilityUIElement*> ElementList;

    ElementList m_elements;

};

#endif // AccessibilityUIElement_h