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/*
* Copyright (C) 2005-2025 Apple Inc. All rights reserved.
* Copyright (C) 2025 Samuel Weinig <[email protected]>
*
* 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 "ColorHash.h"
#include "GraphicsContext.h"
#include "PaintInfo.h"
#include "PopupMenuStyle.h"
#include "ScrollTypes.h"
#include "StyleColor.h"
#include "SwitchTrigger.h"
#include "ThemeTypes.h"
#include <wtf/HashMap.h>
namespace WebCore {
enum class DocumentMarkerLineStyleMode : uint8_t;
struct AttachmentLayout;
class BorderData;
class Element;
class FileList;
class FillLayer;
class HTMLInputElement;
class HTMLMeterElement;
class Icon;
class Page;
class RenderAttachment;
class RenderBox;
class RenderMeter;
class RenderObject;
class RenderProgress;
class RenderStyle;
class Settings;
template<typename> struct MinimallySerializingSpaceSeparatedRectEdges;
namespace Style {
struct LineWidth;
struct PaddingEdge;
using LineWidthBox = MinimallySerializingSpaceSeparatedRectEdges<LineWidth>;
using PaddingBox = MinimallySerializingSpaceSeparatedRectEdges<PaddingEdge>;
}
class RenderTheme {
protected:
RenderTheme();
virtual ~RenderTheme();
public:
// This function is to be implemented in platform-specific theme implementations to hand back the
// appropriate platform theme.
WEBCORE_EXPORT static RenderTheme& singleton();
virtual void purgeCaches();
// This method is called whenever style has been computed for an element and the appearance
// property has been set to a value other than "none". The theme should map in all of the appropriate
// metrics and defaults given the contents of the style. This includes sophisticated operations like
// selection of control size based off the font, the disabling of appearance when CSS properties that
// disable native appearance are set, or if the appearance is not supported by the theme.
void adjustStyle(RenderStyle&, const RenderStyle& parentStyle, const Element*);
virtual bool canCreateControlPartForRenderer(const RenderObject&) const { return false; }
virtual bool canCreateControlPartForBorderOnly(const RenderObject&) const { return false; }
virtual bool canCreateControlPartForDecorations(const RenderObject&) const { return false; }
RefPtr<ControlPart> createControlPart(const RenderObject&) const;
void updateControlPartForRenderer(ControlPart&, const RenderObject&) const;
// These methods are called to paint the widget as a background of the RenderObject. A widget's foreground, e.g., the
// text of a button, is always rendered by the engine itself. The boolean return value indicates
// whether the CSS border/background should also be painted.
bool paint(const RenderBox&, ControlPart&, const PaintInfo&, const LayoutRect&);
bool paint(const RenderBox&, const PaintInfo&, const LayoutRect&);
bool paintBorderOnly(const RenderBox&, const PaintInfo&);
void paintDecorations(const RenderBox&, const PaintInfo&, const LayoutRect&);
// The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
// RenderThemeMac.cpp for macOS.
virtual String extraDefaultStyleSheet() { return String(); }
#if ENABLE(VIDEO)
virtual Vector<String, 2> mediaControlsStyleSheets(const HTMLMediaElement&) { return { }; }
virtual Vector<String, 2> mediaControlsScripts() { return { }; }
virtual String mediaControlsBase64StringForIconNameAndType(const String&, const String&) { return String(); }
virtual String mediaControlsFormattedStringForDuration(double) { return String(); }
#endif // ENABLE(VIDEO)
#if ENABLE(ATTACHMENT_ELEMENT)
virtual String attachmentStyleSheet() const;
#endif
virtual LayoutRect adjustedPaintRect(const RenderBox&, const LayoutRect& paintRect) const { return paintRect; }
// A method to obtain the baseline position for a "leaf" control. This will only be used if a baseline
// position cannot be determined by examining child content. Checkboxes and radio buttons are examples of
// controls that need to do this.
virtual int baselinePosition(const RenderBox&) const;
// A method for asking if a control is a container or not. Leaf controls have to have some special behavior (like
// the baseline position API above).
bool isControlContainer(StyleAppearance) const;
// A method asking if the control changes its tint when the window has focus or not.
virtual bool controlSupportsTints(const RenderObject&) const { return false; }
// Whether or not the control has been styled enough by the author to disable the native appearance.
virtual bool isControlStyled(const RenderStyle&) const;
// A general method asking if any control tinting is supported at all.
virtual bool supportsControlTints() const { return false; }
// Some controls may spill out of their containers (e.g., the check on a macOS checkbox). When these controls repaint,
// the theme needs to communicate this inflated rect to the engine so that it can invalidate the whole control.
virtual void inflateRectForControlRenderer(const RenderObject&, FloatRect&) { }
virtual void adjustRepaintRect(const RenderBox&, FloatRect&) { }
// A method asking if the theme is able to draw the focus ring.
virtual bool supportsFocusRing(const RenderObject&, const RenderStyle&) const;
// A method asking if the theme's controls actually care about redrawing when hovered.
virtual bool supportsHover() const { return false; }
virtual bool supportsBoxShadow(const RenderStyle&) const { return false; }
bool useFormSemanticContext() const { return m_useFormSemanticContext; }
void setUseFormSemanticContext(bool value) { m_useFormSemanticContext = value; }
virtual bool supportsLargeFormControls() const { return false; }
virtual bool searchFieldShouldAppearAsTextField(const RenderStyle&, const Settings&) const { return false; }
// Text selection colors.
WEBCORE_EXPORT Color activeSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
WEBCORE_EXPORT Color inactiveSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
virtual Color transformSelectionBackgroundColor(const Color&, OptionSet<StyleColorOptions>) const;
Color activeSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
Color inactiveSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
// List box selection colors
WEBCORE_EXPORT Color activeListBoxSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
WEBCORE_EXPORT Color activeListBoxSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
Color inactiveListBoxSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
Color inactiveListBoxSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
// Highlighting color for search matches.
Color textSearchHighlightColor(OptionSet<StyleColorOptions>) const;
// Default highlighting color for app highlights.
Color annotationHighlightColor(OptionSet<StyleColorOptions>) const;
Color defaultButtonTextColor(OptionSet<StyleColorOptions>) const;
Color datePlaceholderTextColor(const Color& textColor, const Color& backgroundColor) const;
Color documentMarkerLineColor(const RenderText&, DocumentMarkerLineStyleMode) const;
WEBCORE_EXPORT Color focusRingColor(OptionSet<StyleColorOptions>) const;
virtual Color platformFocusRingColor(OptionSet<StyleColorOptions>) const { return Color::black; }
static float platformFocusRingWidth() { return 3; }
static float platformFocusRingOffset(float outlineWidth) { return std::max<float>(outlineWidth - platformFocusRingWidth(), 0); }
#if ENABLE(TOUCH_EVENTS)
static Color tapHighlightColor();
virtual Color platformTapHighlightColor() const;
#endif
virtual void platformColorsDidChange();
virtual std::optional<Seconds> caretBlinkInterval() const { return { 500_ms }; }
// System fonts and colors for CSS.
virtual Color systemColor(CSSValueID, OptionSet<StyleColorOptions>) const;
virtual int minimumMenuListSize(const RenderStyle&) const { return 0; }
virtual void adjustSliderThumbSize(RenderStyle&, const Element*) const { }
virtual Style::PaddingBox popupInternalPaddingBox(const RenderStyle&) const;
virtual bool popupOptionSupportsTextIndent() const { return false; }
virtual PopupMenuStyle::Size popupMenuSize(const RenderStyle&, IntRect&) const { return PopupMenuStyle::Size::Normal; }
virtual ScrollbarWidth scrollbarWidthStyleForPart(StyleAppearance) { return ScrollbarWidth::Auto; }
virtual Seconds animationRepeatIntervalForProgressBar(const RenderProgress&) const { return 0_s; }
virtual Seconds animationDurationForProgressBar() const { return 0_s; }
virtual IntRect progressBarRectForBounds(const RenderProgress&, const IntRect& bounds) const { return bounds; }
virtual FloatSize meterSizeForBounds(const RenderMeter&, const FloatRect&) const;
virtual bool supportsMeter(StyleAppearance) const { return false; }
// Returns the threshold distance for snapping to a slider tick mark.
virtual LayoutUnit sliderTickSnappingThreshold() const { return 0; }
// Returns size of one slider tick mark for a horizontal track.
// For vertical tracks we rotate it and use it. i.e. Width is always length along the track.
virtual IntSize sliderTickSize() const { return IntSize(); };
// Returns the distance of slider tick origin from the slider track center.
virtual int sliderTickOffsetFromTrackCenter() const { return 0; };
virtual void paintSliderTicks(const RenderObject&, const PaintInfo&, const FloatRect&);
virtual bool shouldHaveSpinButton(const HTMLInputElement&) const;
virtual bool shouldHaveCapsLockIndicator(const HTMLInputElement&) const { return false; }
virtual void createColorWellSwatchSubtree(HTMLElement&) { }
virtual void setColorWellSwatchBackground(HTMLElement&, Color);
// Functions for <select> elements.
virtual bool delegatesMenuListRendering() const { return false; }
virtual bool popsMenuByArrowKeys() const { return false; }
virtual bool popsMenuBySpaceOrReturn() const { return false; }
virtual String fileListDefaultLabel(bool multipleFilesAllowed) const;
virtual String fileListNameForWidth(const FileList*, const FontCascade&, int width, bool multipleFilesAllowed) const;
enum class FileUploadDecorations : bool { SingleFile, MultipleFiles };
virtual void paintFileUploadIconDecorations(const RenderObject& /*inputRenderer*/, const RenderObject& /*buttonRenderer*/, const PaintInfo&, const FloatRect&, Icon*, FileUploadDecorations) { }
#if ENABLE(SERVICE_CONTROLS)
virtual IntSize imageControlsButtonSize() const { return IntSize(); }
#endif
#if ENABLE(ATTACHMENT_ELEMENT)
virtual LayoutSize attachmentIntrinsicSize(const RenderAttachment&) const { return LayoutSize(); }
virtual int attachmentBaseline(const RenderAttachment&) const { return -1; }
virtual bool attachmentShouldAllowWidthToShrink(const RenderAttachment&) const { return false; }
#endif
enum class InnerSpinButtonLayout { Vertical, HorizontalUpLeft, HorizontalUpRight };
virtual InnerSpinButtonLayout innerSpinButtonLayout(const RenderObject&) const { return InnerSpinButtonLayout::Vertical; }
#if USE(SYSTEM_PREVIEW)
virtual void paintSystemPreviewBadge(Image&, const PaintInfo&, const FloatRect&);
#endif
virtual Seconds switchAnimationVisuallyOnDuration() const { return 0_s; }
virtual Seconds switchAnimationHeldDuration() const { return 0_s; }
float switchPointerTrackingMagnitudeProportion() const { return 0.4f; }
virtual bool hasSwitchHapticFeedback(SwitchTrigger) const { return false; }
OptionSet<ControlStyle::State> extractControlStyleStatesForRenderer(const RenderObject&) const;
virtual void paintPlatformResizer(const RenderLayerModelObject&, GraphicsContext&, const LayoutRect&);
virtual void paintPlatformResizerFrame(const RenderLayerModelObject&, GraphicsContext&, const LayoutRect&);
static bool hasAppearanceForElementTypeFromUAStyle(const Element&);
virtual void adjustTextControlInnerContainerStyle(RenderStyle&, const RenderStyle&, const Element*) const { }
virtual void adjustTextControlInnerPlaceholderStyle(RenderStyle&, const RenderStyle&, const Element*) const { }
virtual void adjustTextControlInnerTextStyle(RenderStyle&, const RenderStyle&, const Element*) const { }
virtual Color disabledSubmitButtonTextColor() const { return Color::black; }
virtual bool mayNeedBleedAvoidance(const RenderStyle&) const { return true; }
virtual float adjustedMaximumLogicalWidthForControl(const RenderStyle&, const Element&, float maximumLogicalWidth) const { return maximumLogicalWidth; }
protected:
ControlStyle extractControlStyleForRenderer(const RenderObject&) const;
virtual bool canPaint(const PaintInfo&, const Settings&, StyleAppearance) const { return true; }
// The platform selection color.
virtual Color platformActiveSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformInactiveSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformActiveSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformInactiveSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformActiveListBoxSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformInactiveListBoxSelectionBackgroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformActiveListBoxSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformInactiveListBoxSelectionForegroundColor(OptionSet<StyleColorOptions>) const;
virtual Color platformTextSearchHighlightColor(OptionSet<StyleColorOptions>) const;
virtual Color platformAnnotationHighlightColor(OptionSet<StyleColorOptions>) const;
virtual Color platformDefaultButtonTextColor(OptionSet<StyleColorOptions>) const;
virtual Color platformSpellingMarkerColor(OptionSet<StyleColorOptions>) const;
virtual Color platformDictationAlternativesMarkerColor(OptionSet<StyleColorOptions>) const;
virtual Color platformAutocorrectionReplacementMarkerColor(OptionSet<StyleColorOptions>) const;
virtual Color platformGrammarMarkerColor(OptionSet<StyleColorOptions>) const;
virtual bool supportsSelectionForegroundColors(OptionSet<StyleColorOptions>) const { return true; }
virtual bool supportsListBoxSelectionForegroundColors(OptionSet<StyleColorOptions>) const { return true; }
// Methods for each appearance value.
virtual void adjustCheckboxStyle(RenderStyle&, const Element*) const;
virtual bool paintCheckbox(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustRadioStyle(RenderStyle&, const Element*) const;
virtual bool paintRadio(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustButtonStyle(RenderStyle&, const Element*) const;
virtual bool paintButton(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustColorWellStyle(RenderStyle&, const Element*) const;
virtual bool paintColorWell(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void paintColorWellDecorations(const RenderObject&, const PaintInfo&, const FloatRect&) { }
virtual void adjustColorWellSwatchStyle(RenderStyle&, const Element*) const { }
virtual void adjustColorWellSwatchOverlayStyle(RenderStyle&, const Element*) const { }
virtual void adjustColorWellSwatchWrapperStyle(RenderStyle&, const Element*) const { }
virtual bool paintColorWellSwatch(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustInnerSpinButtonStyle(RenderStyle&, const Element*) const;
virtual bool paintInnerSpinButton(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustTextFieldStyle(RenderStyle&, const Element*) const { }
virtual bool paintTextField(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void paintTextFieldDecorations(const RenderBox&, const PaintInfo&, const FloatRect&) { }
virtual void adjustTextAreaStyle(RenderStyle&, const Element*) const { }
virtual bool paintTextArea(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void paintTextAreaDecorations(const RenderBox&, const PaintInfo&, const FloatRect&) { }
virtual void adjustMenuListStyle(RenderStyle&, const Element*) const;
virtual bool paintMenuList(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void paintMenuListDecorations(const RenderObject&, const PaintInfo&, const FloatRect&) { }
virtual void adjustMenuListButtonStyle(RenderStyle&, const Element*) const { }
virtual void paintMenuListButtonDecorations(const RenderBox&, const PaintInfo&, const FloatRect&) { }
virtual bool paintMenuListButton(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustMeterStyle(RenderStyle&, const Element*) const;
virtual bool paintMeter(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
#if ENABLE(APPLE_PAY)
virtual void adjustApplePayButtonStyle(RenderStyle&, const Element*) const { }
#endif
#if ENABLE(ATTACHMENT_ELEMENT)
virtual bool paintAttachment(const RenderObject&, const PaintInfo&, const IntRect&) { return false; }
virtual void paintAttachmentText(GraphicsContext&, AttachmentLayout*) { }
#endif
virtual void adjustListButtonStyle(RenderStyle&, const Element*) const { }
virtual bool paintListButton(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
#if ENABLE(SERVICE_CONTROLS)
virtual void adjustImageControlsButtonStyle(RenderStyle&, const Element*) const { }
virtual bool paintImageControlsButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
virtual bool isImageControlsButton(const Element&) const { return false; }
#endif
virtual void adjustProgressBarStyle(RenderStyle&, const Element*) const { }
virtual bool paintProgressBar(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustSliderTrackStyle(RenderStyle&, const Element*) const { }
virtual bool paintSliderTrack(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustSliderThumbStyle(RenderStyle&, const Element*) const;
virtual bool paintSliderThumb(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustSearchFieldStyle(RenderStyle&, const Element*) const { }
virtual bool paintSearchField(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void paintSearchFieldDecorations(const RenderBox&, const PaintInfo&, const FloatRect&) { }
virtual void adjustSearchFieldCancelButtonStyle(RenderStyle&, const Element*) const { }
virtual bool paintSearchFieldCancelButton(const RenderBox&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustSearchFieldDecorationPartStyle(RenderStyle&, const Element*) const { }
virtual bool paintSearchFieldDecorationPart(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustSearchFieldResultsDecorationPartStyle(RenderStyle&, const Element*) const { }
virtual bool paintSearchFieldResultsDecorationPart(const RenderBox&, const PaintInfo&, const FloatRect&) { return true; }
virtual void adjustSearchFieldResultsButtonStyle(RenderStyle&, const Element*) const { }
virtual bool paintSearchFieldResultsButton(const RenderBox&, const PaintInfo&, const FloatRect&) { return true; }
void adjustSwitchStyleDisplay(RenderStyle&) const;
virtual void adjustSwitchStyle(RenderStyle&, const Element*) const;
void adjustSwitchThumbOrSwitchTrackStyle(RenderStyle&) const;
virtual bool paintSwitchThumb(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
virtual bool paintSwitchTrack(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
// The font description result should have a zoomed font size.
virtual std::optional<FontCascadeDescription> controlFont(StyleAppearance, const FontCascade&, float) const;
virtual Style::PaddingBox controlPadding(StyleAppearance, const Style::PaddingBox&, float zoomFactor) const;
// The size here is in zoomed coordinates already. If a new size is returned, it also needs to be in zoomed coordinates.
virtual Style::PreferredSizePair controlSize(StyleAppearance, const FontCascade&, const Style::PreferredSizePair&, float zoomFactor) const;
// Returns the minimum size for a control in zoomed coordinates.
Style::MinimumSizePair minimumControlSize(StyleAppearance, const FontCascade&, const Style::MinimumSizePair&, const Style::PreferredSizePair&, float zoomFactor) const;
// Allows the theme to modify the existing border.
virtual Style::LineWidthBox controlBorder(StyleAppearance, const FontCascade&, const Style::LineWidthBox& zoomedBox, float zoomFactor, const Element*) const;
// Whether or not whitespace: pre should be forced on always.
virtual bool controlRequiresPreWhiteSpace(StyleAppearance) const { return false; }
private:
OptionSet<ControlStyle::State> extractControlStyleStatesForRendererInternal(const RenderElement&) const;
void adjustButtonOrCheckboxOrColorWellOrInnerSpinButtonOrRadioStyle(RenderStyle&, const Element*) const;
public:
bool isWindowActive(const RenderObject&) const;
bool isChecked(const RenderObject&) const;
bool isIndeterminate(const RenderObject&) const;
bool isEnabled(const RenderObject&) const;
bool isFocused(const RenderObject&) const;
bool isPressed(const RenderObject&) const;
bool isSpinUpButtonPartPressed(const RenderObject&) const;
bool isHovered(const RenderObject&) const;
bool isSpinUpButtonPartHovered(const RenderObject&) const;
bool isPresenting(const RenderObject&) const;
bool isReadOnlyControl(const RenderObject&) const;
bool isDefault(const RenderObject&) const;
bool hasListButton(const RenderElement&) const;
bool hasListButtonPressed(const RenderElement&) const;
protected:
struct ColorCache {
HashMap<int, Color> systemStyleColors;
Color systemLinkColor;
Color systemActiveLinkColor;
Color systemVisitedLinkColor;
Color systemFocusRingColor;
Color systemControlAccentColor;
Color activeSelectionBackgroundColor;
Color inactiveSelectionBackgroundColor;
Color activeSelectionForegroundColor;
Color inactiveSelectionForegroundColor;
Color activeListBoxSelectionBackgroundColor;
Color inactiveListBoxSelectionBackgroundColor;
Color activeListBoxSelectionForegroundColor;
Color inactiveListBoxSelectionForegroundColor;
Color textSearchHighlightColor;
Color annotationHighlightColor;
Color defaultButtonTextColor;
Color defaultSubmitButtonTextColor;
Color spellingMarkerColor;
Color dictationAlternativesMarkerColor;
Color autocorrectionReplacementMarkerColor;
Color grammarMarkerColor;
};
virtual ColorCache& colorCache(OptionSet<StyleColorOptions>) const;
virtual Color autocorrectionReplacementMarkerColor(const RenderText&) const;
virtual Style::MinimumSizePair minimumControlSize(StyleAppearance, const FontCascade&, const Style::MinimumSizePair&, float zoomFactor) const;
private:
StyleAppearance autoAppearanceForElement(RenderStyle&, const Element*) const;
StyleAppearance adjustAppearanceForElement(RenderStyle&, const RenderStyle& parentStyle, const Element*, StyleAppearance) const;
Color spellingMarkerColor(OptionSet<StyleColorOptions>) const;
Color dictationAlternativesMarkerColor(OptionSet<StyleColorOptions>) const;
Color grammarMarkerColor(OptionSet<StyleColorOptions>) const;
mutable HashMap<uint8_t, ColorCache, DefaultHash<uint8_t>, WTF::UnsignedWithZeroKeyHashTraits<uint8_t>> m_colorCacheMap;
bool m_useFormSemanticContext { false };
};
} // namespace WebCore