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/*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2000 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* 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 HTMLSelectElement_h
#define HTMLSelectElement_h
#include "Event.h"
#include "HTMLFormControlElementWithState.h"
#include "HTMLOptionElement.h"
#include "TypeAhead.h"
#include <wtf/Vector.h>
namespace WebCore {
class HTMLOptionsCollection;
class HTMLSelectElement : public HTMLFormControlElementWithState, public TypeAheadDataSource {
public:
static Ref<HTMLSelectElement> create(const QualifiedName&, Document&, HTMLFormElement*);
WEBCORE_EXPORT int selectedIndex() const;
void setSelectedIndex(int);
WEBCORE_EXPORT void optionSelectedByUser(int index, bool dispatchChangeEvent, bool allowMultipleSelection = false);
// For ValidityState
virtual String validationMessage() const override;
virtual bool valueMissing() const override;
unsigned length() const;
int size() const { return m_size; }
bool multiple() const { return m_multiple; }
bool usesMenuList() const;
void add(HTMLElement*, HTMLElement* beforeElement, ExceptionCode&);
void add(HTMLElement*, int beforeIndex, ExceptionCode&);
using Node::remove;
// Should be remove(int) but it conflicts with Node::remove(ExceptionCode&).
void removeByIndex(int);
void remove(HTMLOptionElement*);
WEBCORE_EXPORT String value() const;
void setValue(const String&);
Ref<HTMLOptionsCollection> options();
Ref<HTMLCollection> selectedOptions();
void optionElementChildrenChanged();
void setRecalcListItems();
void invalidateSelectedItems();
void updateListItemSelectedStates();
WEBCORE_EXPORT const Vector<HTMLElement*>& listItems() const;
virtual void accessKeyAction(bool sendMouseEvents) override;
void accessKeySetSelectedIndex(int);
void setMultiple(bool);
void setSize(int);
void setOption(unsigned index, HTMLOptionElement*, ExceptionCode&);
void setLength(unsigned, ExceptionCode&);
HTMLOptionElement* namedItem(const AtomicString& name);
HTMLOptionElement* item(unsigned index);
void scrollToSelection();
void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true);
#if PLATFORM(IOS)
virtual bool willRespondToMouseClickEvents() override;
#endif
bool canSelectAll() const;
void selectAll();
int listToOptionIndex(int listIndex) const;
void listBoxOnChange();
int optionToListIndex(int optionIndex) const;
int activeSelectionStartListIndex() const;
int activeSelectionEndListIndex() const;
void setActiveSelectionAnchorIndex(int);
void setActiveSelectionEndIndex(int);
void updateListBoxSelection(bool deselectOtherOptions);
// For use in the implementation of HTMLOptionElement.
void optionSelectionStateChanged(HTMLOptionElement*, bool optionIsSelected);
bool allowsNonContiguousSelection() const { return m_allowsNonContiguousSelection; };
protected:
HTMLSelectElement(const QualifiedName&, Document&, HTMLFormElement*);
private:
virtual const AtomicString& formControlType() const override;
virtual bool isKeyboardFocusable(KeyboardEvent*) const override;
virtual bool isMouseFocusable() const override;
virtual void dispatchFocusEvent(RefPtr<Element>&& oldFocusedElement, FocusDirection) override final;
virtual void dispatchBlurEvent(RefPtr<Element>&& newFocusedElement) override final;
virtual bool canStartSelection() const override { return false; }
virtual bool canHaveUserAgentShadowRoot() const override final { return true; }
virtual bool isEnumeratable() const override { return true; }
virtual bool supportLabels() const override { return true; }
virtual FormControlState saveFormControlState() const override;
virtual void restoreFormControlState(const FormControlState&) override;
virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
virtual bool isPresentationAttribute(const QualifiedName&) const override;
virtual bool childShouldCreateRenderer(const Node&) const override;
virtual RenderPtr<RenderElement> createElementRenderer(Ref<RenderStyle>&&, const RenderTreePosition&) override;
virtual bool appendFormData(FormDataList&, bool) override;
virtual void reset() override;
virtual void defaultEventHandler(Event*) override;
void dispatchChangeEventForMenuList();
virtual void didRecalcStyle(Style::Change) override final;
void recalcListItems(bool updateSelectedStates = true) const;
void deselectItems(HTMLOptionElement* excludeElement = 0);
void typeAheadFind(KeyboardEvent&);
void saveLastSelection();
virtual InsertionNotificationRequest insertedInto(ContainerNode&) override;
virtual bool isOptionalFormControl() const override { return !isRequiredFormControl(); }
virtual bool isRequiredFormControl() const override;
bool hasPlaceholderLabelOption() const;
enum SelectOptionFlag {
DeselectOtherOptions = 1 << 0,
DispatchChangeEvent = 1 << 1,
UserDriven = 1 << 2,
};
typedef unsigned SelectOptionFlags;
void selectOption(int optionIndex, SelectOptionFlags = 0);
void deselectItemsWithoutValidation(HTMLElement* elementToExclude = 0);
void parseMultipleAttribute(const AtomicString&);
int lastSelectedListIndex() const;
void updateSelectedState(int listIndex, bool multi, bool shift);
void menuListDefaultEventHandler(Event*);
bool platformHandleKeydownEvent(KeyboardEvent*);
void listBoxDefaultEventHandler(Event*);
void setOptionsChangedOnRenderer();
size_t searchOptionsForValue(const String&, size_t listIndexStart, size_t listIndexEnd) const;
enum SkipDirection {
SkipBackwards = -1,
SkipForwards = 1
};
int nextValidIndex(int listIndex, SkipDirection, int skip) const;
int nextSelectableListIndex(int startIndex) const;
int previousSelectableListIndex(int startIndex) const;
int firstSelectableListIndex() const;
int lastSelectableListIndex() const;
int nextSelectableListIndexPageAway(int startIndex, SkipDirection) const;
virtual void childrenChanged(const ChildChange&) override;
// TypeAheadDataSource functions.
virtual int indexOfSelectedOption() const override;
virtual int optionCount() const override;
virtual String optionAtIndex(int index) const override;
// m_listItems contains HTMLOptionElement, HTMLOptGroupElement, and HTMLHRElement objects.
mutable Vector<HTMLElement*> m_listItems;
Vector<bool> m_lastOnChangeSelection;
Vector<bool> m_cachedStateForActiveSelection;
TypeAhead m_typeAhead;
int m_size;
int m_lastOnChangeIndex;
int m_activeSelectionAnchorIndex;
int m_activeSelectionEndIndex;
bool m_isProcessingUserDrivenChange;
bool m_multiple;
bool m_activeSelectionState;
bool m_allowsNonContiguousSelection;
mutable bool m_shouldRecalcListItems;
};
} // namespace
#endif
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