211 lines
7.7 KiB
C++
211 lines
7.7 KiB
C++
/*
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* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* (C) 2000 Dirk Mueller (mueller@kde.org)
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* Copyright (C) 2004, 2005, 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include "HTMLFormControlElementWithState.h"
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#include "TypeAhead.h"
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namespace WebCore {
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class HTMLOptionsCollection;
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class HTMLSelectElement : public HTMLFormControlElementWithState, private TypeAheadDataSource {
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WTF_MAKE_ISO_ALLOCATED(HTMLSelectElement);
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public:
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static Ref<HTMLSelectElement> create(const QualifiedName&, Document&, HTMLFormElement*);
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WEBCORE_EXPORT int selectedIndex() const;
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WEBCORE_EXPORT void setSelectedIndex(int);
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WEBCORE_EXPORT void optionSelectedByUser(int index, bool dispatchChangeEvent, bool allowMultipleSelection = false);
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String validationMessage() const final;
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bool valueMissing() const final;
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WEBCORE_EXPORT unsigned length() const;
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unsigned size() const { return m_size; }
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bool multiple() const { return m_multiple; }
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bool usesMenuList() const;
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using OptionOrOptGroupElement = Variant<RefPtr<HTMLOptionElement>, RefPtr<HTMLOptGroupElement>>;
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using HTMLElementOrInt = Variant<RefPtr<HTMLElement>, int>;
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WEBCORE_EXPORT ExceptionOr<void> add(const OptionOrOptGroupElement&, const std::optional<HTMLElementOrInt>& before);
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using Node::remove;
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WEBCORE_EXPORT void remove(int);
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WEBCORE_EXPORT String value() const;
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WEBCORE_EXPORT void setValue(const String&);
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WEBCORE_EXPORT Ref<HTMLOptionsCollection> options();
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Ref<HTMLCollection> selectedOptions();
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void optionElementChildrenChanged();
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void setRecalcListItems();
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void invalidateSelectedItems();
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void updateListItemSelectedStates();
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WEBCORE_EXPORT const Vector<HTMLElement*>& listItems() const;
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bool accessKeyAction(bool sendMouseEvents) final;
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void accessKeySetSelectedIndex(int);
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WEBCORE_EXPORT void setMultiple(bool);
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WEBCORE_EXPORT void setSize(unsigned);
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// Called by the bindings for the unnamed index-setter.
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ExceptionOr<void> setItem(unsigned index, HTMLOptionElement*);
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ExceptionOr<void> setLength(unsigned);
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WEBCORE_EXPORT HTMLOptionElement* namedItem(const AtomString& name);
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WEBCORE_EXPORT HTMLOptionElement* item(unsigned index);
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void scrollToSelection();
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void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true);
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bool canSelectAll() const;
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void selectAll();
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int listToOptionIndex(int listIndex) const;
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void listBoxOnChange();
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int optionToListIndex(int optionIndex) const;
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int activeSelectionStartListIndex() const;
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int activeSelectionEndListIndex() const;
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void setActiveSelectionAnchorIndex(int);
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void setActiveSelectionEndIndex(int);
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void updateListBoxSelection(bool deselectOtherOptions);
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// For use in the implementation of HTMLOptionElement.
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void optionSelectionStateChanged(HTMLOptionElement&, bool optionIsSelected);
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bool allowsNonContiguousSelection() const { return m_allowsNonContiguousSelection; };
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protected:
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HTMLSelectElement(const QualifiedName&, Document&, HTMLFormElement*);
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private:
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const AtomString& formControlType() const final;
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int defaultTabIndex() const final;
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bool isKeyboardFocusable(KeyboardEvent*) const final;
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bool isMouseFocusable() const final;
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void dispatchFocusEvent(RefPtr<Element>&& oldFocusedElement, FocusDirection) final;
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void dispatchBlurEvent(RefPtr<Element>&& newFocusedElement) final;
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bool canStartSelection() const final { return false; }
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bool isEnumeratable() const final { return true; }
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bool supportLabels() const final { return true; }
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bool isInteractiveContent() const final { return true; }
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FormControlState saveFormControlState() const final;
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void restoreFormControlState(const FormControlState&) final;
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void parseAttribute(const QualifiedName&, const AtomString&) final;
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bool hasPresentationalHintsForAttribute(const QualifiedName&) const final;
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bool childShouldCreateRenderer(const Node&) const final;
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RenderPtr<RenderElement> createElementRenderer(RenderStyle&&, const RenderTreePosition&) final;
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bool appendFormData(DOMFormData&, bool) final;
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void reset() final;
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void defaultEventHandler(Event&) final;
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bool willRespondToMouseClickEvents() final;
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void dispatchChangeEventForMenuList();
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void didRecalcStyle(Style::Change) final;
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void recalcListItems(bool updateSelectedStates = true) const;
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void deselectItems(HTMLOptionElement* excludeElement = nullptr);
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void typeAheadFind(KeyboardEvent&);
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void saveLastSelection();
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InsertedIntoAncestorResult insertedIntoAncestor(InsertionType, ContainerNode&) final;
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bool isOptionalFormControl() const final { return !isRequiredFormControl(); }
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bool isRequiredFormControl() const final;
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bool hasPlaceholderLabelOption() const;
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enum SelectOptionFlag {
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DeselectOtherOptions = 1 << 0,
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DispatchChangeEvent = 1 << 1,
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UserDriven = 1 << 2,
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};
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typedef unsigned SelectOptionFlags;
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void selectOption(int optionIndex, SelectOptionFlags = 0);
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void deselectItemsWithoutValidation(HTMLElement* elementToExclude = nullptr);
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void parseMultipleAttribute(const AtomString&);
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int lastSelectedListIndex() const;
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void updateSelectedState(int listIndex, bool multi, bool shift);
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void menuListDefaultEventHandler(Event&);
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bool platformHandleKeydownEvent(KeyboardEvent*);
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void listBoxDefaultEventHandler(Event&);
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void setOptionsChangedOnRenderer();
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size_t searchOptionsForValue(const String&, size_t listIndexStart, size_t listIndexEnd) const;
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enum SkipDirection { SkipBackwards = -1, SkipForwards = 1 };
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int nextValidIndex(int listIndex, SkipDirection, int skip) const;
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int nextSelectableListIndex(int startIndex) const;
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int previousSelectableListIndex(int startIndex) const;
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int firstSelectableListIndex() const;
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int lastSelectableListIndex() const;
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int nextSelectableListIndexPageAway(int startIndex, SkipDirection) const;
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void childrenChanged(const ChildChange&) final;
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// TypeAheadDataSource functions.
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int indexOfSelectedOption() const final;
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int optionCount() const final;
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String optionAtIndex(int index) const final;
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// m_listItems contains HTMLOptionElement, HTMLOptGroupElement, and HTMLHRElement objects.
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mutable Vector<HTMLElement*> m_listItems;
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Vector<bool> m_lastOnChangeSelection;
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Vector<bool> m_cachedStateForActiveSelection;
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TypeAhead m_typeAhead;
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unsigned m_size;
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int m_lastOnChangeIndex;
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int m_activeSelectionAnchorIndex;
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int m_activeSelectionEndIndex;
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bool m_isProcessingUserDrivenChange;
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bool m_multiple;
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bool m_activeSelectionState;
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bool m_allowsNonContiguousSelection;
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mutable bool m_shouldRecalcListItems;
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};
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} // namespace
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