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/*
* This file is part of the select element renderer in WebCore.
*
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2015 Apple 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.
*
*/
#pragma once
#include "LayoutRect.h"
#include "PopupMenu.h"
#include "PopupMenuClient.h"
#include "RenderFlexibleBox.h"
#if PLATFORM(COCOA)
#define POPUP_MENU_PULLS_DOWN 0
#else
#define POPUP_MENU_PULLS_DOWN 1
#endif
namespace WebCore {
class HTMLSelectElement;
class RenderText;
class RenderMenuList final : public RenderFlexibleBox, private PopupMenuClient {
public:
RenderMenuList(HTMLSelectElement&, RenderStyle&&);
virtual ~RenderMenuList();
HTMLSelectElement& selectElement() const;
#if !PLATFORM(IOS)
bool popupIsVisible() const { return m_popupIsVisible; }
#endif
void showPopup();
void hidePopup();
void setOptionsChanged(bool changed) { m_needsOptionsWidthUpdate = changed; }
void didSetSelectedIndex(int listIndex);
String text() const;
private:
void willBeDestroyed() override;
void element() const = delete;
bool isMenuList() const override { return true; }
void addChild(RenderObject* newChild, RenderObject* beforeChild = 0) override;
void removeChild(RenderObject&) override;
bool createsAnonymousWrapper() const override { return true; }
void updateFromElement() override;
LayoutRect controlClipRect(const LayoutPoint&) const override;
bool hasControlClip() const override { return true; }
bool canHaveGeneratedChildren() const override { return false; }
const char* renderName() const override { return "RenderMenuList"; }
void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
void computePreferredLogicalWidths() override;
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
// PopupMenuClient methods
void valueChanged(unsigned listIndex, bool fireOnChange = true) override;
void selectionChanged(unsigned, bool) override { }
void selectionCleared() override { }
String itemText(unsigned listIndex) const override;
String itemLabel(unsigned listIndex) const override;
String itemIcon(unsigned listIndex) const override;
String itemToolTip(unsigned listIndex) const override;
String itemAccessibilityText(unsigned listIndex) const override;
bool itemIsEnabled(unsigned listIndex) const override;
PopupMenuStyle itemStyle(unsigned listIndex) const override;
PopupMenuStyle menuStyle() const override;
int clientInsetLeft() const override;
int clientInsetRight() const override;
LayoutUnit clientPaddingLeft() const override;
LayoutUnit clientPaddingRight() const override;
int listSize() const override;
int selectedIndex() const override;
void popupDidHide() override;
bool itemIsSeparator(unsigned listIndex) const override;
bool itemIsLabel(unsigned listIndex) const override;
bool itemIsSelected(unsigned listIndex) const override;
bool shouldPopOver() const override { return !POPUP_MENU_PULLS_DOWN; }
bool valueShouldChangeOnHotTrack() const override { return true; }
void setTextFromItem(unsigned listIndex) override;
void listBoxSelectItem(int listIndex, bool allowMultiplySelections, bool shift, bool fireOnChangeNow = true) override;
bool multiple() const override;
FontSelector* fontSelector() const override;
HostWindow* hostWindow() const override;
Ref<Scrollbar> createScrollbar(ScrollableArea&, ScrollbarOrientation, ScrollbarControlSize) override;
bool hasLineIfEmpty() const override { return true; }
// Flexbox defines baselines differently than regular blocks.
// For backwards compatibility, menulists need to do the regular block behavior.
int baselinePosition(FontBaseline baseline, bool firstLine, LineDirectionMode direction, LinePositionMode position) const override
{
return RenderBlock::baselinePosition(baseline, firstLine, direction, position);
}
std::optional<int> firstLineBaseline() const override { return RenderBlock::firstLineBaseline(); }
std::optional<int> inlineBlockBaseline(LineDirectionMode direction) const override { return RenderBlock::inlineBlockBaseline(direction); }
void getItemBackgroundColor(unsigned listIndex, Color&, bool& itemHasCustomBackgroundColor) const;
void createInnerBlock();
void adjustInnerStyle();
void setText(const String&);
void setTextFromOption(int optionIndex);
void updateOptionsWidth();
void didUpdateActiveOption(int optionIndex);
bool isFlexibleBoxImpl() const override { return true; }
RenderText* m_buttonText;
RenderBlock* m_innerBlock;
bool m_needsOptionsWidthUpdate;
int m_optionsWidth;
int m_lastActiveIndex;
std::unique_ptr<RenderStyle> m_optionStyle;
#if !PLATFORM(IOS)
RefPtr<PopupMenu> m_popup;
bool m_popupIsVisible;
#endif
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderMenuList, isMenuList())
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