463 lines
24 KiB
C++
463 lines
24 KiB
C++
/*
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* Copyright (C) 2005-2017 Apple 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 "ColorHash.h"
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#include "ControlStates.h"
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#include "GraphicsContext.h"
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#include "PaintInfo.h"
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#include "PopupMenuStyle.h"
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#include "ScrollTypes.h"
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#include "StyleColor.h"
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#include "ThemeTypes.h"
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#include <wtf/HashMap.h>
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namespace WebCore {
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class BorderData;
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class Element;
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class FileList;
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class FillLayer;
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class HTMLInputElement;
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class HTMLMeterElement;
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class Icon;
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class Page;
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class RenderAttachment;
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class RenderBox;
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class RenderMeter;
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class RenderObject;
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class RenderProgress;
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class RenderStyle;
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class Settings;
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class RenderTheme {
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protected:
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RenderTheme();
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virtual ~RenderTheme() = default;
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public:
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// This function is to be implemented in platform-specific theme implementations to hand back the
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// appropriate platform theme.
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WEBCORE_EXPORT static RenderTheme& singleton();
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virtual void purgeCaches();
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// This method is called whenever style has been computed for an element and the appearance
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// property has been set to a value other than "none". The theme should map in all of the appropriate
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// metrics and defaults given the contents of the style. This includes sophisticated operations like
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// selection of control size based off the font, the disabling of appearance when certain other properties like
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// "border" are set, or if the appearance is not supported by the theme.
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void adjustStyle(RenderStyle&, const Element*, const RenderStyle* userAgentAppearanceStyle);
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// This method is called to paint the widget as a background of the RenderObject. A widget's foreground, e.g., the
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// text of a button, is always rendered by the engine itself. The boolean return value indicates
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// whether the CSS border/background should also be painted.
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bool paint(const RenderBox&, ControlStates&, const PaintInfo&, const LayoutRect&);
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bool paintBorderOnly(const RenderBox&, const PaintInfo&, const LayoutRect&);
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void paintDecorations(const RenderBox&, const PaintInfo&, const LayoutRect&);
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// The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
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// RenderThemeMac.cpp for Mac OS X.
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// These methods return the theme's extra style sheets rules, to let each platform
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// adjust the default CSS rules in html.css, quirks.css, mediaControls.css, or plugIns.css
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virtual String extraDefaultStyleSheet() { return String(); }
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virtual String extraQuirksStyleSheet() { return String(); }
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virtual String extraPlugInsStyleSheet() { return String(); }
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#if ENABLE(VIDEO)
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virtual String mediaControlsStyleSheet() { return String(); }
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virtual String extraMediaControlsStyleSheet() { return String(); }
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virtual Vector<String, 2> mediaControlsScripts() { return { }; }
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#if ENABLE(MODERN_MEDIA_CONTROLS)
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virtual String mediaControlsBase64StringForIconNameAndType(const String&, const String&) { return String(); }
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virtual String mediaControlsFormattedStringForDuration(double) { return String(); }
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#endif // ENABLE(MODERN_MEDIA_CONTROLS)
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#endif // ENABLE(VIDEO)
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#if ENABLE(FULLSCREEN_API)
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virtual String extraFullScreenStyleSheet() { return String(); }
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#endif
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#if ENABLE(DATALIST_ELEMENT)
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String dataListStyleSheet() const;
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#endif
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#if ENABLE(INPUT_TYPE_COLOR)
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virtual String colorInputStyleSheet(const Settings&) const;
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#endif
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virtual LayoutRect adjustedPaintRect(const RenderBox&, const LayoutRect& paintRect) const { return paintRect; }
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// A method to obtain the baseline position for a "leaf" control. This will only be used if a baseline
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// position cannot be determined by examining child content. Checkboxes and radio buttons are examples of
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// controls that need to do this.
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virtual int baselinePosition(const RenderBox&) const;
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// A method for asking if a control is a container or not. Leaf controls have to have some special behavior (like
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// the baseline position API above).
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bool isControlContainer(ControlPart) const;
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// A method asking if the control changes its tint when the window has focus or not.
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virtual bool controlSupportsTints(const RenderObject&) const { return false; }
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// Whether or not the control has been styled enough by the author to disable the native appearance.
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virtual bool isControlStyled(const RenderStyle&, const RenderStyle& userAgentStyle) const;
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// A general method asking if any control tinting is supported at all.
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virtual bool supportsControlTints() const { return false; }
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// Some controls may spill out of their containers (e.g., the check on an OS X checkbox). When these controls repaint,
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// the theme needs to communicate this inflated rect to the engine so that it can invalidate the whole control.
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virtual void adjustRepaintRect(const RenderObject&, FloatRect&);
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// This method is called whenever a relevant state changes on a particular themed object, e.g., the mouse becomes pressed
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// or a control becomes disabled.
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virtual bool stateChanged(const RenderObject&, ControlStates::States) const;
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// This method is called whenever the theme changes on the system in order to flush cached resources from the
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// old theme.
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virtual void themeChanged() { }
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// A method asking if the theme is able to draw the focus ring.
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virtual bool supportsFocusRing(const RenderStyle&) const;
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// A method asking if the theme's controls actually care about redrawing when hovered.
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virtual bool supportsHover(const RenderStyle&) const { return false; }
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// A method asking if the platform is able to show datalist suggestions for a given input type.
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virtual bool supportsDataListUI(const AtomString&) const { return false; }
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virtual bool supportsBoxShadow(const RenderStyle&) const { return false; }
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// Text selection colors.
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Color activeSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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Color inactiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color transformSelectionBackgroundColor(const Color&, OptionSet<StyleColor::Options>) const;
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Color activeSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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Color inactiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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// List box selection colors
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Color activeListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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Color activeListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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Color inactiveListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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Color inactiveListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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// Highlighting color for search matches.
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Color textSearchHighlightColor(OptionSet<StyleColor::Options>) const;
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#if ENABLE(APP_HIGHLIGHTS)
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// Default highlighting color for app highlights.
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Color appHighlightColor(OptionSet<StyleColor::Options>) const;
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#endif
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Color defaultButtonTextColor(OptionSet<StyleColor::Options>) const;
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Color datePlaceholderTextColor(const Color& textColor, const Color& backgroundColor) const;
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virtual Color disabledTextColor(const Color& textColor, const Color& backgroundColor) const;
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WEBCORE_EXPORT Color focusRingColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformFocusRingColor(OptionSet<StyleColor::Options>) const { return Color::black; }
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static void setCustomFocusRingColor(const Color&);
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static float platformFocusRingWidth() { return 3; }
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static float platformFocusRingOffset(float outlineWidth) { return std::max<float>(outlineWidth - platformFocusRingWidth(), 0); }
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#if ENABLE(TOUCH_EVENTS)
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static Color tapHighlightColor();
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virtual Color platformTapHighlightColor() const;
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#endif
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virtual void platformColorsDidChange();
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virtual Seconds caretBlinkInterval() const { return 500_ms; }
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// System fonts and colors for CSS.
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void systemFont(CSSValueID, FontCascadeDescription&) const;
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virtual Color systemColor(CSSValueID, OptionSet<StyleColor::Options>) const;
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virtual int minimumMenuListSize(const RenderStyle&) const { return 0; }
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virtual void adjustSliderThumbSize(RenderStyle&, const Element*) const;
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virtual LengthBox popupInternalPaddingBox(const RenderStyle&, const Settings&) const { return { 0, 0, 0, 0 }; }
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virtual bool popupOptionSupportsTextIndent() const { return false; }
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virtual PopupMenuStyle::PopupMenuSize popupMenuSize(const RenderStyle&, IntRect&) const { return PopupMenuStyle::PopupMenuSizeNormal; }
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virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return ScrollbarControlSize::Regular; }
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// Returns the repeat interval of the animation for the progress bar.
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virtual Seconds animationRepeatIntervalForProgressBar(const RenderProgress&) const;
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// Returns the duration of the animation for the progress bar.
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virtual Seconds animationDurationForProgressBar(const RenderProgress&) const;
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virtual IntRect progressBarRectForBounds(const RenderObject&, const IntRect&) const;
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#if ENABLE(VIDEO)
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// Media controls
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virtual bool supportsClosedCaptioning() const { return false; }
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virtual bool hasOwnDisabledStateHandlingFor(ControlPart) const { return false; }
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virtual bool usesMediaControlStatusDisplay() { return false; }
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virtual bool usesMediaControlVolumeSlider() const { return true; }
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virtual bool usesVerticalVolumeSlider() const { return true; }
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virtual double mediaControlsFadeInDuration() { return 0.1; }
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virtual Seconds mediaControlsFadeOutDuration() { return 300_ms; }
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virtual String formatMediaControlsTime(float time) const;
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virtual String formatMediaControlsCurrentTime(float currentTime, float duration) const;
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virtual String formatMediaControlsRemainingTime(float currentTime, float duration) const;
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// Returns the media volume slider container's offset from the mute button.
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virtual LayoutPoint volumeSliderOffsetFromMuteButton(const RenderBox&, const LayoutSize&) const;
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#endif
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virtual IntSize meterSizeForBounds(const RenderMeter&, const IntRect&) const;
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virtual bool supportsMeter(ControlPart, const HTMLMeterElement&) const;
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#if ENABLE(DATALIST_ELEMENT)
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// Returns the threshold distance for snapping to a slider tick mark.
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virtual LayoutUnit sliderTickSnappingThreshold() const;
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// Returns size of one slider tick mark for a horizontal track.
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// For vertical tracks we rotate it and use it. i.e. Width is always length along the track.
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virtual IntSize sliderTickSize() const = 0;
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// Returns the distance of slider tick origin from the slider track center.
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virtual int sliderTickOffsetFromTrackCenter() const = 0;
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virtual void paintSliderTicks(const RenderObject&, const PaintInfo&, const FloatRect&);
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#endif
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virtual bool shouldHaveSpinButton(const HTMLInputElement&) const;
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virtual bool shouldHaveCapsLockIndicator(const HTMLInputElement&) const;
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// Functions for <select> elements.
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virtual bool delegatesMenuListRendering() const { return false; }
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virtual bool popsMenuByArrowKeys() const { return false; }
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virtual bool popsMenuBySpaceOrReturn() const { return false; }
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virtual String fileListDefaultLabel(bool multipleFilesAllowed) const;
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virtual String fileListNameForWidth(const FileList*, const FontCascade&, int width, bool multipleFilesAllowed) const;
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enum FileUploadDecorations { SingleFile, MultipleFiles };
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virtual void paintFileUploadIconDecorations(const RenderObject& /*inputRenderer*/, const RenderObject& /*buttonRenderer*/, const PaintInfo&, const IntRect&, Icon*, FileUploadDecorations) { }
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#if ENABLE(ATTACHMENT_ELEMENT)
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virtual LayoutSize attachmentIntrinsicSize(const RenderAttachment&) const { return LayoutSize(); }
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virtual int attachmentBaseline(const RenderAttachment&) const { return -1; }
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virtual bool attachmentShouldAllowWidthToShrink(const RenderAttachment&) const { return false; }
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#endif
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enum class InnerSpinButtonLayout { Vertical, HorizontalUpLeft, HorizontalUpRight };
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virtual InnerSpinButtonLayout innerSpinButtonLayout(const RenderObject&) const { return InnerSpinButtonLayout::Vertical; }
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virtual bool shouldMockBoldSystemFontForAccessibility() const { return false; }
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virtual void setShouldMockBoldSystemFontForAccessibility(bool) { }
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#if USE(SYSTEM_PREVIEW)
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virtual void paintSystemPreviewBadge(Image&, const PaintInfo&, const FloatRect&);
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#endif
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protected:
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virtual bool canPaint(const PaintInfo&, const Settings&) const { return true; }
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virtual FontCascadeDescription& cachedSystemFontDescription(CSSValueID systemFontID) const;
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virtual void updateCachedSystemFontDescription(CSSValueID systemFontID, FontCascadeDescription&) const = 0;
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// The platform selection color.
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virtual Color platformActiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformInactiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformActiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformInactiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformActiveListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformInactiveListBoxSelectionBackgroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformActiveListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformInactiveListBoxSelectionForegroundColor(OptionSet<StyleColor::Options>) const;
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virtual Color platformTextSearchHighlightColor(OptionSet<StyleColor::Options>) const;
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#if ENABLE(APP_HIGHLIGHTS)
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virtual Color platformAppHighlightColor(OptionSet<StyleColor::Options>) const;
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#endif
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virtual Color platformDefaultButtonTextColor(OptionSet<StyleColor::Options>) const;
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virtual bool supportsSelectionForegroundColors(OptionSet<StyleColor::Options>) const { return true; }
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virtual bool supportsListBoxSelectionForegroundColors(OptionSet<StyleColor::Options>) const { return true; }
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#if !USE(NEW_THEME)
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// Methods for each appearance value.
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virtual void adjustCheckboxStyle(RenderStyle&, const Element*) const;
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virtual bool paintCheckbox(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
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virtual void setCheckboxSize(RenderStyle&) const { }
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virtual void adjustRadioStyle(RenderStyle&, const Element*) const;
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virtual bool paintRadio(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
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virtual void setRadioSize(RenderStyle&) const { }
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virtual void adjustButtonStyle(RenderStyle&, const Element*) const;
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virtual bool paintButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustInnerSpinButtonStyle(RenderStyle&, const Element*) const;
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virtual bool paintInnerSpinButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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#if ENABLE(INPUT_TYPE_COLOR)
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virtual void adjustColorWellStyle(RenderStyle&, const Element*) const;
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virtual bool paintColorWell(const RenderObject&, const PaintInfo&, const IntRect&);
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#endif
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#endif
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virtual void paintCheckboxDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void paintRadioDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void paintButtonDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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#if ENABLE(INPUT_TYPE_COLOR)
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virtual void paintColorWellDecorations(const RenderObject&, const PaintInfo&, const FloatRect&);
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#endif
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virtual void adjustTextFieldStyle(RenderStyle&, const Element*) const;
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virtual bool paintTextField(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
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virtual void paintTextFieldDecorations(const RenderObject&, const PaintInfo&, const FloatRect&) { }
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virtual void adjustTextAreaStyle(RenderStyle&, const Element*) const;
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virtual bool paintTextArea(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
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virtual void paintTextAreaDecorations(const RenderObject&, const PaintInfo&, const FloatRect&) { }
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virtual void adjustMenuListStyle(RenderStyle&, const Element*) const;
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virtual bool paintMenuList(const RenderObject&, const PaintInfo&, const FloatRect&) { return true; }
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virtual void paintMenuListDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void adjustMenuListButtonStyle(RenderStyle&, const Element*) const;
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virtual void paintMenuListButtonDecorations(const RenderBox&, const PaintInfo&, const FloatRect&) { }
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virtual void paintPushButtonDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void paintSquareButtonDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void adjustMeterStyle(RenderStyle&, const Element*) const;
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virtual bool paintMeter(const RenderObject&, const PaintInfo&, const IntRect&);
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virtual void adjustCapsLockIndicatorStyle(RenderStyle&, const Element*) const;
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virtual bool paintCapsLockIndicator(const RenderObject&, const PaintInfo&, const IntRect&);
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#if ENABLE(APPLE_PAY)
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virtual void adjustApplePayButtonStyle(RenderStyle&, const Element*) const { }
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virtual bool paintApplePayButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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#endif
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#if ENABLE(ATTACHMENT_ELEMENT)
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virtual void adjustAttachmentStyle(RenderStyle&, const Element*) const;
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virtual bool paintAttachment(const RenderObject&, const PaintInfo&, const IntRect&);
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#endif
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#if ENABLE(DATALIST_ELEMENT)
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virtual void adjustListButtonStyle(RenderStyle&, const Element*) const;
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#endif
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virtual void adjustProgressBarStyle(RenderStyle&, const Element*) const;
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virtual bool paintProgressBar(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustSliderTrackStyle(RenderStyle&, const Element*) const;
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virtual bool paintSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustSliderThumbStyle(RenderStyle&, const Element*) const;
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virtual bool paintSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual void paintSliderThumbDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void adjustSearchFieldStyle(RenderStyle&, const Element*) const;
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virtual bool paintSearchField(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual void paintSearchFieldDecorations(const RenderObject&, const PaintInfo&, const IntRect&) { }
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virtual void adjustSearchFieldCancelButtonStyle(RenderStyle&, const Element*) const;
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virtual bool paintSearchFieldCancelButton(const RenderBox&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustSearchFieldDecorationPartStyle(RenderStyle&, const Element*) const;
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virtual bool paintSearchFieldDecorationPart(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustSearchFieldResultsDecorationPartStyle(RenderStyle&, const Element*) const;
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virtual bool paintSearchFieldResultsDecorationPart(const RenderBox&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustSearchFieldResultsButtonStyle(RenderStyle&, const Element*) const;
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virtual bool paintSearchFieldResultsButton(const RenderBox&, const PaintInfo&, const IntRect&) { return true; }
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virtual void adjustMediaControlStyle(RenderStyle&, const Element*) const;
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virtual bool paintMediaFullscreenButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaPlayButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaOverlayPlayButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaMuteButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaSeekBackButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaSeekForwardButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaVolumeSliderContainer(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaVolumeSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaVolumeSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaRewindButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaReturnToRealtimeButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaToggleClosedCaptionsButton(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaControlsBackground(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaCurrentTime(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaTimeRemaining(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaFullScreenVolumeSliderTrack(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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virtual bool paintMediaFullScreenVolumeSliderThumb(const RenderObject&, const PaintInfo&, const IntRect&) { return true; }
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public:
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void updateControlStatesForRenderer(const RenderBox&, ControlStates&) const;
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OptionSet<ControlStates::States> extractControlStatesForRenderer(const RenderObject&) const;
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bool isActive(const RenderObject&) const;
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bool isChecked(const RenderObject&) const;
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bool isIndeterminate(const RenderObject&) const;
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bool isEnabled(const RenderObject&) const;
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bool isFocused(const RenderObject&) const;
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bool isPressed(const RenderObject&) const;
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bool isSpinUpButtonPartPressed(const RenderObject&) const;
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bool isHovered(const RenderObject&) const;
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bool isSpinUpButtonPartHovered(const RenderObject&) const;
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bool isPresenting(const RenderObject&) const;
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bool isReadOnlyControl(const RenderObject&) const;
|
|
bool isDefault(const RenderObject&) const;
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protected:
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struct ColorCache {
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HashMap<int, Color> systemStyleColors;
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Color systemLinkColor;
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Color systemActiveLinkColor;
|
|
Color systemVisitedLinkColor;
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Color systemFocusRingColor;
|
|
Color systemControlAccentColor;
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|
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Color activeSelectionBackgroundColor;
|
|
Color inactiveSelectionBackgroundColor;
|
|
Color activeSelectionForegroundColor;
|
|
Color inactiveSelectionForegroundColor;
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|
|
|
Color activeListBoxSelectionBackgroundColor;
|
|
Color inactiveListBoxSelectionBackgroundColor;
|
|
Color activeListBoxSelectionForegroundColor;
|
|
Color inactiveListBoxSelectionForegroundColor;
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|
|
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Color textSearchHighlightColor;
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|
|
|
#if ENABLE(APP_HIGHLIGHTS)
|
|
Color appHighlightColor;
|
|
#endif
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|
|
|
Color defaultButtonTextColor;
|
|
};
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|
|
|
virtual ColorCache& colorCache(OptionSet<StyleColor::Options>) const;
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|
|
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private:
|
|
void adjustSearchFieldDecorationStyle(RenderStyle&, const Element*) const;
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|
|
|
mutable HashMap<uint8_t, ColorCache, DefaultHash<uint8_t>, WTF::UnsignedWithZeroKeyHashTraits<uint8_t>> m_colorCacheMap;
|
|
};
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} // namespace WebCore
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