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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
* Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http//www.torchmobile.com/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef SelectElement_h
#define SelectElement_h
#include "Event.h"
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace WebCore {
class Attribute;
class Element;
class Event;
class FormDataList;
class HTMLFormElement;
class KeyboardEvent;
class SelectElementData;
class SelectElement {
public:
virtual bool multiple() const = 0;
virtual int size() const = 0;
virtual const Vector<Element*>& listItems() const = 0;
virtual void listBoxOnChange() = 0;
virtual void updateListBoxSelection(bool deselectOtherOptions) = 0;
virtual void menuListOnChange() = 0;
virtual int activeSelectionStartListIndex() const = 0;
virtual int activeSelectionEndListIndex() const = 0;
virtual void setActiveSelectionAnchorIndex(int index) = 0;
virtual void setActiveSelectionEndIndex(int index) = 0;
virtual int listToOptionIndex(int listIndex) const = 0;
virtual int optionToListIndex(int optionIndex) const = 0;
virtual int selectedIndex() const = 0;
virtual void setSelectedIndex(int index, bool deselect = true) = 0;
virtual void setSelectedIndexByUser(int index, bool deselect = true, bool fireOnChangeNow = false, bool allowMultipleSelection = false) = 0;
virtual void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true) = 0;
virtual void updateValidity() = 0;
protected:
virtual ~SelectElement() { }
friend class SelectElementData;
static void selectAll(SelectElementData&, Element*);
static void saveLastSelection(SelectElementData&, Element*);
static void setActiveSelectionAnchorIndex(SelectElementData&, Element*, int index);
static void setActiveSelectionEndIndex(SelectElementData&, int index);
static void updateListBoxSelection(SelectElementData&, Element*, bool deselectOtherOptions);
static void listBoxOnChange(SelectElementData&, Element*);
static void menuListOnChange(SelectElementData&, Element*);
static void scrollToSelection(SelectElementData&, Element*);
static void setRecalcListItems(SelectElementData&, Element*);
static void recalcListItems(SelectElementData&, const Element*, bool updateSelectedStates = true);
static int selectedIndex(const SelectElementData&, const Element*);
static void setSelectedIndex(SelectElementData&, Element*, int optionIndex, bool deselect = true, bool fireOnChangeNow = false, bool userDrivenChange = true);
static int optionToListIndex(const SelectElementData&, const Element*, int optionIndex);
static int listToOptionIndex(const SelectElementData&, const Element*, int listIndex);
static void dispatchFocusEvent(SelectElementData&, Element*);
static void dispatchBlurEvent(SelectElementData&, Element*);
static void deselectItems(SelectElementData&, Element*, Element* excludeElement = 0);
static bool saveFormControlState(const SelectElementData&, const Element*, String& state);
static void restoreFormControlState(SelectElementData&, Element*, const String& state);
static void parseMultipleAttribute(SelectElementData&, Element*, Attribute*);
static bool appendFormData(SelectElementData&, Element*, FormDataList&);
static void reset(SelectElementData&, Element*);
static void defaultEventHandler(SelectElementData&, Element*, Event*, HTMLFormElement*);
static int lastSelectedListIndex(const SelectElementData&, const Element*);
static void typeAheadFind(SelectElementData&, Element*, KeyboardEvent*);
static void insertedIntoTree(SelectElementData&, Element*);
static void accessKeySetSelectedIndex(SelectElementData&, Element*, int index);
static unsigned optionCount(const SelectElementData&, const Element*);
static void updateSelectedState(SelectElementData& data, Element* element, int listIndex,
bool multi, bool shift);
private:
static void menuListDefaultEventHandler(SelectElementData&, Element*, Event*, HTMLFormElement*);
static void listBoxDefaultEventHandler(SelectElementData&, Element*, Event*, HTMLFormElement*);
static void setOptionsChangedOnRenderer(SelectElementData&, Element*);
};
// HTMLSelectElement hold this struct as member variable
// and pass it to the static helper functions in SelectElement
class SelectElementData {
public:
SelectElementData();
~SelectElementData();
bool multiple() const { return m_multiple; }
void setMultiple(bool value) { m_multiple = value; }
int size() const { return m_size; }
void setSize(int value) { m_size = value; }
bool usesMenuList() const
{
#if ENABLE(NO_LISTBOX_RENDERING)
return true;
#else
return !m_multiple && m_size <= 1;
#endif
}
int lastOnChangeIndex() const { return m_lastOnChangeIndex; }
void setLastOnChangeIndex(int value) { m_lastOnChangeIndex = value; }
bool userDrivenChange() const { return m_userDrivenChange; }
void setUserDrivenChange(bool value) { m_userDrivenChange = value; }
Vector<bool>& lastOnChangeSelection() { return m_lastOnChangeSelection; }
bool activeSelectionState() const { return m_activeSelectionState; }
void setActiveSelectionState(bool value) { m_activeSelectionState = value; }
int activeSelectionAnchorIndex() const { return m_activeSelectionAnchorIndex; }
void setActiveSelectionAnchorIndex(int value) { m_activeSelectionAnchorIndex = value; }
int activeSelectionEndIndex() const { return m_activeSelectionEndIndex; }
void setActiveSelectionEndIndex(int value) { m_activeSelectionEndIndex = value; }
Vector<bool>& cachedStateForActiveSelection() { return m_cachedStateForActiveSelection; }
bool shouldRecalcListItems() const { return m_recalcListItems; }
void setShouldRecalcListItems(bool value) { m_recalcListItems = value; }
Vector<Element*>& rawListItems() { return m_listItems; }
Vector<Element*>& listItems(const Element*);
const Vector<Element*>& listItems(const Element*) const;
UChar repeatingChar() const { return m_repeatingChar; }
void setRepeatingChar(const UChar& value) { m_repeatingChar = value; }
DOMTimeStamp lastCharTime() const { return m_lastCharTime; }
void setLastCharTime(const DOMTimeStamp& value) { m_lastCharTime = value; }
String& typedString() { return m_typedString; }
void setTypedString(const String& value) { m_typedString = value; }
private:
void checkListItems(const Element*) const;
bool m_multiple;
int m_size;
int m_lastOnChangeIndex;
Vector<bool> m_lastOnChangeSelection;
bool m_userDrivenChange;
bool m_activeSelectionState;
int m_activeSelectionAnchorIndex;
int m_activeSelectionEndIndex;
Vector<bool> m_cachedStateForActiveSelection;
bool m_recalcListItems;
Vector<Element*> m_listItems;
// Instance variables for type-ahead find
UChar m_repeatingChar;
DOMTimeStamp m_lastCharTime;
String m_typedString;
};
SelectElement* toSelectElement(Element*);
}
#endif
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