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/*
* Copyright (C) 2006-2017 Apple Inc. All rights reserved.
* Copyright (C) 2009 Kenneth Rohde Christiansen
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "config.h"
#include "RenderThemeWin.h"
#include "CSSValueKeywords.h"
#include "Element.h"
#include "FontMetrics.h"
#include "Frame.h"
#include "FrameSelection.h"
#include "GraphicsContext.h"
#include "HTMLMeterElement.h"
#include "LocalWindowsContext.h"
#include "PaintInfo.h"
#include "RenderMeter.h"
#include "RenderSlider.h"
#include "Settings.h"
#include "SystemInfo.h"
#include "UserAgentStyleSheets.h"
#include "WebCoreBundleWin.h"
#include <wtf/FileSystem.h>
#include <wtf/SoftLinking.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/win/GDIObject.h>
#if ENABLE(VIDEO)
#include "RenderMediaControls.h"
#endif
#include <tchar.h>
/*
* The following constants are used to determine how a widget is drawn using
* Windows' Theme API. For more information on theme parts and states see
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/userex/topics/partsandstates.asp
*/
// Generic state constants
#define TS_NORMAL 1
#define TS_HOVER 2
#define TS_ACTIVE 3
#define TS_DISABLED 4
#define TS_FOCUSED 5
// Button constants
#define BP_BUTTON 1
#define BP_RADIO 2
#define BP_CHECKBOX 3
// Textfield constants
#define TFP_TEXTFIELD 1
#define EP_EDITBORDER_NOSCROLL 6
#define TFS_READONLY 6
// ComboBox constants (from vsstyle.h)
#define CP_DROPDOWNBUTTON 1
#define CP_BORDER 4
#define CP_READONLY 5
#define CP_DROPDOWNBUTTONRIGHT 6
// TrackBar (slider) parts
#define TKP_TRACK 1
#define TKP_TRACKVERT 2
// TrackBar (slider) thumb parts
#define TKP_THUMBBOTTOM 4
#define TKP_THUMBTOP 5
#define TKP_THUMBLEFT 7
#define TKP_THUMBRIGHT 8
// Trackbar (slider) thumb states
#define TUS_NORMAL 1
#define TUS_HOT 2
#define TUS_PRESSED 3
#define TUS_FOCUSED 4
#define TUS_DISABLED 5
// button states
#define PBS_NORMAL 1
#define PBS_HOT 2
#define PBS_PRESSED 3
#define PBS_DISABLED 4
#define PBS_DEFAULTED 5
// Spin button parts
#define SPNP_UP 1
#define SPNP_DOWN 2
// Spin button states
#define DNS_NORMAL 1
#define DNS_HOT 2
#define DNS_PRESSED 3
#define DNS_DISABLED 4
#define UPS_NORMAL 1
#define UPS_HOT 2
#define UPS_PRESSED 3
#define UPS_DISABLED 4
// Progress bar parts
#define PP_BAR 1
#define PP_BARVERT 2
#define PP_CHUNK 3
#define PP_CHUNKVERT 4
#define PP_FILL 5
#define PP_FILLVERT 6
#define PP_PULSEOVERLAY 7
#define PP_MOVEOVERLAY 8
#define PP_PULSEOVERLAYVERT 9
#define PP_MOVEOVERLAYVERT 10
#define PP_TRANSPARENTBAR 11
#define PP_TRANSPARENTBARVERT 12
// Progress bar states
#define PBBS_NORMAL 1
#define PBBS_PARTIAL 2
#define PBBVS_NORMAL 1 // Vertical
#define PBBVS_PARTIAL 2
// Progress bar fill states
#define PBFS_NORMAL 1
#define PBFS_ERROR 2
#define PBFS_PAUSED 3
#define PBFS_PARTIAL 4
#define PBFVS_NORMAL 1 // Vertical
#define PBFVS_ERROR 2
#define PBFVS_PAUSED 3
#define PBFVS_PARTIAL 4
SOFT_LINK_LIBRARY(uxtheme)
SOFT_LINK(uxtheme, OpenThemeData, HANDLE, WINAPI, (HWND hwnd, LPCWSTR pszClassList), (hwnd, pszClassList))
SOFT_LINK(uxtheme, CloseThemeData, HRESULT, WINAPI, (HANDLE hTheme), (hTheme))
SOFT_LINK(uxtheme, DrawThemeBackground, HRESULT, WINAPI, (HANDLE hTheme, HDC hdc, int iPartId, int iStateId, const RECT* pRect, const RECT* pClipRect), (hTheme, hdc, iPartId, iStateId, pRect, pClipRect))
SOFT_LINK(uxtheme, IsThemeActive, BOOL, WINAPI, (), ())
SOFT_LINK(uxtheme, IsThemeBackgroundPartiallyTransparent, BOOL, WINAPI, (HANDLE hTheme, int iPartId, int iStateId), (hTheme, iPartId, iStateId))
static bool haveTheme;
static const unsigned vistaMenuListButtonOutset = 1;
namespace WebCore {
// This is the fixed width IE and Firefox use for buttons on dropdown menus
static const int dropDownButtonWidth = 17;
// Default font size to match Firefox.
static const float defaultControlFontPixelSize = 13;
static const float defaultCancelButtonSize = 9;
static const float minCancelButtonSize = 5;
static const float maxCancelButtonSize = 21;
static const float defaultSearchFieldResultsDecorationSize = 13;
static const float minSearchFieldResultsDecorationSize = 9;
static const float maxSearchFieldResultsDecorationSize = 30;
static const float defaultSearchFieldResultsButtonWidth = 18;
static bool gWebKitIsBeingUnloaded;
void RenderThemeWin::setWebKitIsBeingUnloaded()
{
gWebKitIsBeingUnloaded = true;
}
RenderTheme& RenderTheme::singleton()
{
static NeverDestroyed<RenderThemeWin> theme;
return theme;
}
RenderThemeWin::RenderThemeWin()
: m_buttonTheme(0)
, m_textFieldTheme(0)
, m_menuListTheme(0)
, m_sliderTheme(0)
, m_spinButtonTheme(0)
, m_progressBarTheme(0)
{
haveTheme = uxthemeLibrary() && IsThemeActive();
}
RenderThemeWin::~RenderThemeWin()
{
// If WebKit is being unloaded, then uxtheme.dll is no longer available.
if (gWebKitIsBeingUnloaded || !uxthemeLibrary())
return;
close();
}
HANDLE RenderThemeWin::buttonTheme() const
{
if (haveTheme && !m_buttonTheme)
m_buttonTheme = OpenThemeData(0, L"Button");
return m_buttonTheme;
}
HANDLE RenderThemeWin::textFieldTheme() const
{
if (haveTheme && !m_textFieldTheme)
m_textFieldTheme = OpenThemeData(0, L"Edit");
return m_textFieldTheme;
}
HANDLE RenderThemeWin::menuListTheme() const
{
if (haveTheme && !m_menuListTheme)
m_menuListTheme = OpenThemeData(0, L"ComboBox");
return m_menuListTheme;
}
HANDLE RenderThemeWin::sliderTheme() const
{
if (haveTheme && !m_sliderTheme)
m_sliderTheme = OpenThemeData(0, L"TrackBar");
return m_sliderTheme;
}
HANDLE RenderThemeWin::spinButtonTheme() const
{
if (haveTheme && !m_spinButtonTheme)
m_spinButtonTheme = OpenThemeData(0, L"Spin");
return m_spinButtonTheme;
}
HANDLE RenderThemeWin::progressBarTheme() const
{
if (haveTheme && !m_progressBarTheme)
m_progressBarTheme = OpenThemeData(0, L"Progress");
return m_progressBarTheme;
}
void RenderThemeWin::close()
{
// This method will need to be called when the OS theme changes to flush our cached themes.
if (m_buttonTheme)
CloseThemeData(m_buttonTheme);
if (m_textFieldTheme)
CloseThemeData(m_textFieldTheme);
if (m_menuListTheme)
CloseThemeData(m_menuListTheme);
if (m_sliderTheme)
CloseThemeData(m_sliderTheme);
if (m_spinButtonTheme)
CloseThemeData(m_spinButtonTheme);
if (m_progressBarTheme)
CloseThemeData(m_progressBarTheme);
m_buttonTheme = m_textFieldTheme = m_menuListTheme = m_sliderTheme = m_spinButtonTheme = m_progressBarTheme = 0;
haveTheme = uxthemeLibrary() && IsThemeActive();
}
void RenderThemeWin::themeChanged()
{
close();
}
String RenderThemeWin::extraDefaultStyleSheet()
{
return String(themeWinUserAgentStyleSheet, sizeof(themeWinUserAgentStyleSheet));
}
String RenderThemeWin::extraQuirksStyleSheet()
{
return String(themeWinQuirksUserAgentStyleSheet, sizeof(themeWinQuirksUserAgentStyleSheet));
}
bool RenderThemeWin::supportsHover(const RenderStyle&) const
{
// The Classic/2k look has no hover effects.
return haveTheme;
}
Color RenderThemeWin::platformActiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const
{
COLORREF color = GetSysColor(COLOR_HIGHLIGHT);
return Color(GetRValue(color), GetGValue(color), GetBValue(color));
}
Color RenderThemeWin::platformInactiveSelectionBackgroundColor(OptionSet<StyleColor::Options>) const
{
// This color matches Firefox.
return Color(176, 176, 176);
}
Color RenderThemeWin::platformActiveSelectionForegroundColor(OptionSet<StyleColor::Options>) const
{
COLORREF color = GetSysColor(COLOR_HIGHLIGHTTEXT);
return Color(GetRValue(color), GetGValue(color), GetBValue(color));
}
Color RenderThemeWin::platformInactiveSelectionForegroundColor(OptionSet<StyleColor::Options> options) const
{
return platformActiveSelectionForegroundColor(options);
}
static void fillFontDescription(FontCascadeDescription& fontDescription, LOGFONT& logFont, float fontSize)
{
fontDescription.setIsAbsoluteSize(true);
fontDescription.setOneFamily(logFont.lfFaceName);
fontDescription.setSpecifiedSize(fontSize);
fontDescription.setWeight(logFont.lfWeight >= 700 ? boldWeightValue() : normalWeightValue()); // FIXME: Use real weight.
fontDescription.setIsItalic(logFont.lfItalic);
}
void RenderThemeWin::updateCachedSystemFontDescription(CSSValueID valueID, FontCascadeDescription& fontDescription) const
{
static bool initialized;
static NONCLIENTMETRICS ncm;
if (!initialized) {
initialized = true;
ncm.cbSize = sizeof(NONCLIENTMETRICS);
::SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(ncm), &ncm, 0);
}
LOGFONT logFont;
bool shouldUseDefaultControlFontPixelSize = false;
switch (valueID) {
case CSSValueIcon:
::SystemParametersInfo(SPI_GETICONTITLELOGFONT, sizeof(logFont), &logFont, 0);
break;
case CSSValueMenu:
logFont = ncm.lfMenuFont;
break;
case CSSValueMessageBox:
logFont = ncm.lfMessageFont;
break;
case CSSValueStatusBar:
logFont = ncm.lfStatusFont;
break;
case CSSValueCaption:
logFont = ncm.lfCaptionFont;
break;
case CSSValueSmallCaption:
logFont = ncm.lfSmCaptionFont;
break;
case CSSValueWebkitSmallControl:
case CSSValueWebkitMiniControl: // Just map to small.
case CSSValueWebkitControl: // Just map to small.
shouldUseDefaultControlFontPixelSize = true;
FALLTHROUGH;
default: { // Everything else uses the stock GUI font.
HGDIOBJ hGDI = ::GetStockObject(DEFAULT_GUI_FONT);
if (!hGDI)
return;
if (::GetObject(hGDI, sizeof(logFont), &logFont) <= 0)
return;
}
}
fillFontDescription(fontDescription, logFont, shouldUseDefaultControlFontPixelSize ? defaultControlFontPixelSize : abs(logFont.lfHeight));
}
bool RenderThemeWin::supportsFocus(ControlPart appearance) const
{
switch (appearance) {
case PushButtonPart:
case ButtonPart:
case DefaultButtonPart:
return true;
default:
return false;
}
}
bool RenderThemeWin::supportsFocusRing(const RenderStyle& style) const
{
return supportsFocus(style.appearance());
}
unsigned RenderThemeWin::determineClassicState(const RenderObject& o, ControlSubPart subPart)
{
unsigned state = 0;
switch (o.style().appearance()) {
case PushButtonPart:
case ButtonPart:
case DefaultButtonPart:
state = DFCS_BUTTONPUSH;
if (!isEnabled(o))
state |= DFCS_INACTIVE;
else if (isPressed(o))
state |= DFCS_PUSHED;
break;
case RadioPart:
case CheckboxPart:
state = (o.style().appearance() == RadioPart) ? DFCS_BUTTONRADIO : DFCS_BUTTONCHECK;
if (isChecked(o))
state |= DFCS_CHECKED;
if (!isEnabled(o))
state |= DFCS_INACTIVE;
else if (isPressed(o))
state |= DFCS_PUSHED;
break;
case MenulistPart:
state = DFCS_SCROLLCOMBOBOX;
if (!isEnabled(o))
state |= DFCS_INACTIVE;
else if (isPressed(o))
state |= DFCS_PUSHED;
break;
case InnerSpinButtonPart: {
bool isUpButton = subPart == SpinButtonUp;
state = isUpButton ? DFCS_SCROLLUP : DFCS_SCROLLDOWN;
if (!isEnabled(o) || isReadOnlyControl(o))
state |= DFCS_INACTIVE;
else if (isPressed(o) && isUpButton == isSpinUpButtonPartPressed(o))
state |= DFCS_PUSHED;
else if (isHovered(o) && isUpButton == isSpinUpButtonPartHovered(o))
state |= DFCS_HOT;
break;
}
default:
break;
}
return state;
}
unsigned RenderThemeWin::determineState(const RenderObject& o)
{
unsigned result = TS_NORMAL;
ControlPart appearance = o.style().appearance();
if (!isEnabled(o))
result = TS_DISABLED;
else if (isReadOnlyControl(o) && (TextFieldPart == appearance || TextAreaPart == appearance || SearchFieldPart == appearance))
result = TFS_READONLY; // Readonly is supported on textfields.
else if (isPressed(o)) // Active overrides hover and focused.
result = TS_ACTIVE;
else if (supportsFocus(appearance) && isFocused(o))
result = TS_FOCUSED;
else if (isHovered(o))
result = TS_HOVER;
if (isChecked(o))
result += 4; // 4 unchecked states, 4 checked states.
else if (isIndeterminate(o) && appearance == CheckboxPart)
result += 8;
return result;
}
unsigned RenderThemeWin::determineSliderThumbState(const RenderObject& o)
{
unsigned result = TUS_NORMAL;
if (!isEnabled(o))
result = TUS_DISABLED;
else if (supportsFocus(o.style().appearance()) && isFocused(o))
result = TUS_FOCUSED;
else if (isPressed(o))
result = TUS_PRESSED;
else if (isHovered(o))
result = TUS_HOT;
return result;
}
unsigned RenderThemeWin::determineButtonState(const RenderObject& o)
{
unsigned result = PBS_NORMAL;
if (!isEnabled(o))
result = PBS_DISABLED;
else if (isPressed(o))
result = PBS_PRESSED;
else if (supportsFocus(o.style().appearance()) && isFocused(o))
result = PBS_DEFAULTED;
else if (isHovered(o))
result = PBS_HOT;
else if (isDefault(o))
result = PBS_DEFAULTED;
return result;
}
unsigned RenderThemeWin::determineSpinButtonState(const RenderObject& o, ControlSubPart subPart)
{
bool isUpButton = subPart == SpinButtonUp;
unsigned result = isUpButton ? UPS_NORMAL : DNS_NORMAL;
if (!isEnabled(o) || isReadOnlyControl(o))
result = isUpButton ? UPS_DISABLED : DNS_DISABLED;
else if (isPressed(o) && isUpButton == isSpinUpButtonPartPressed(o))
result = isUpButton ? UPS_PRESSED : DNS_PRESSED;
else if (isHovered(o) && isUpButton == isSpinUpButtonPartHovered(o))
result = isUpButton ? UPS_HOT : DNS_HOT;
return result;
}
ThemeData RenderThemeWin::getClassicThemeData(const RenderObject& o, ControlSubPart subPart)
{
ThemeData result;
switch (o.style().appearance()) {
case PushButtonPart:
case ButtonPart:
case DefaultButtonPart:
case CheckboxPart:
case RadioPart:
result.m_part = DFC_BUTTON;
result.m_state = determineClassicState(o);
break;
case MenulistPart:
result.m_part = DFC_SCROLL;
result.m_state = determineClassicState(o);
break;
case MeterPart:
result.m_part = PP_BAR;
result.m_state = determineState(o);
break;
case SearchFieldPart:
case TextFieldPart:
case TextAreaPart:
result.m_part = TFP_TEXTFIELD;
result.m_state = determineState(o);
break;
case SliderHorizontalPart:
result.m_part = TKP_TRACK;
result.m_state = TS_NORMAL;
break;
case SliderVerticalPart:
result.m_part = TKP_TRACKVERT;
result.m_state = TS_NORMAL;
break;
case SliderThumbHorizontalPart:
result.m_part = TKP_THUMBBOTTOM;
result.m_state = determineSliderThumbState(o);
break;
case SliderThumbVerticalPart:
result.m_part = TKP_THUMBRIGHT;
result.m_state = determineSliderThumbState(o);
break;
case InnerSpinButtonPart:
result.m_part = DFC_SCROLL;
result.m_state = determineClassicState(o, subPart);
break;
default:
break;
}
return result;
}
ThemeData RenderThemeWin::getThemeData(const RenderObject& o, ControlSubPart subPart)
{
if (!haveTheme)
return getClassicThemeData(o, subPart);
ThemeData result;
switch (o.style().appearance()) {
case PushButtonPart:
case ButtonPart:
case DefaultButtonPart:
result.m_part = BP_BUTTON;
result.m_state = determineButtonState(o);
break;
case CheckboxPart:
result.m_part = BP_CHECKBOX;
result.m_state = determineState(o);
break;
case MenulistPart:
case MenulistButtonPart: {
const bool isVistaOrLater = (windowsVersion() >= WindowsVista);
result.m_part = isVistaOrLater ? CP_DROPDOWNBUTTONRIGHT : CP_DROPDOWNBUTTON;
if (isVistaOrLater) {
result.m_state = TS_NORMAL;
} else
result.m_state = determineState(o);
break;
}
case MeterPart:
result.m_part = PP_BAR;
result.m_state = determineState(o);
break;
case RadioPart:
result.m_part = BP_RADIO;
result.m_state = determineState(o);
break;
case SearchFieldPart:
case TextFieldPart:
case TextAreaPart:
result.m_part = (windowsVersion() >= WindowsVista) ? EP_EDITBORDER_NOSCROLL : TFP_TEXTFIELD;
result.m_state = determineState(o);
break;
case SliderHorizontalPart:
result.m_part = TKP_TRACK;
result.m_state = TS_NORMAL;
break;
case SliderVerticalPart:
result.m_part = TKP_TRACKVERT;
result.m_state = TS_NORMAL;
break;
case SliderThumbHorizontalPart:
result.m_part = TKP_THUMBBOTTOM;
result.m_state = determineSliderThumbState(o);
break;
case SliderThumbVerticalPart:
result.m_part = TKP_THUMBRIGHT;
result.m_state = determineSliderThumbState(o);
break;
case InnerSpinButtonPart:
result.m_part = subPart == SpinButtonUp ? SPNP_UP : SPNP_DOWN;
result.m_state = determineSpinButtonState(o, subPart);
break;
default:
break;
}
return result;
}
static void drawControl(GraphicsContext& context, const RenderObject& o, HANDLE theme, const ThemeData& themeData, const IntRect& r)
{
bool alphaBlend = false;
if (theme)
alphaBlend = IsThemeBackgroundPartiallyTransparent(theme, themeData.m_part, themeData.m_state);
LocalWindowsContext windowsContext(context, r, alphaBlend);
RECT widgetRect = r;
if (theme)
DrawThemeBackground(theme, windowsContext.hdc(), themeData.m_part, themeData.m_state, &widgetRect, 0);
else {
HDC hdc = windowsContext.hdc();
if (themeData.m_part == TFP_TEXTFIELD) {
::DrawEdge(hdc, &widgetRect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
if (themeData.m_state == TS_DISABLED || themeData.m_state == TFS_READONLY)
::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_BTNFACE+1));
else
::FillRect(hdc, &widgetRect, (HBRUSH)(COLOR_WINDOW+1));
} else if (themeData.m_part == TKP_TRACK || themeData.m_part == TKP_TRACKVERT) {
::DrawEdge(hdc, &widgetRect, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
::FillRect(hdc, &widgetRect, (HBRUSH)GetStockObject(GRAY_BRUSH));
} else if ((o.style().appearance() == SliderThumbHorizontalPart
|| o.style().appearance() == SliderThumbVerticalPart)
&& (themeData.m_part == TKP_THUMBBOTTOM || themeData.m_part == TKP_THUMBTOP
|| themeData.m_part == TKP_THUMBLEFT || themeData.m_part == TKP_THUMBRIGHT)) {
::DrawEdge(hdc, &widgetRect, EDGE_RAISED, BF_RECT | BF_SOFT | BF_MIDDLE | BF_ADJUST);
if (themeData.m_state == TUS_DISABLED) {
static WORD patternBits[8] = {0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55};
auto patternBmp = adoptGDIObject(::CreateBitmap(8, 8, 1, 1, patternBits));
if (patternBmp) {
auto brush = adoptGDIObject(::CreatePatternBrush(patternBmp.get()));
COLORREF oldForeColor = ::SetTextColor(hdc, ::GetSysColor(COLOR_3DFACE));
COLORREF oldBackColor = ::SetBkColor(hdc, ::GetSysColor(COLOR_3DHILIGHT));
POINT p;
::GetViewportOrgEx(hdc, &p);
::SetBrushOrgEx(hdc, p.x + widgetRect.left, p.y + widgetRect.top, NULL);
HGDIOBJ oldBrush = ::SelectObject(hdc, brush.get());
::FillRect(hdc, &widgetRect, brush.get());
::SetTextColor(hdc, oldForeColor);
::SetBkColor(hdc, oldBackColor);
::SelectObject(hdc, oldBrush);
} else
::FillRect(hdc, &widgetRect, (HBRUSH)COLOR_3DHILIGHT);
}
} else {
// Push buttons, buttons, checkboxes and radios, and the dropdown arrow in menulists.
if (o.style().appearance() == DefaultButtonPart) {
HBRUSH brush = ::GetSysColorBrush(COLOR_3DDKSHADOW);
::FrameRect(hdc, &widgetRect, brush);
::InflateRect(&widgetRect, -1, -1);
::DrawEdge(hdc, &widgetRect, BDR_RAISEDOUTER, BF_RECT | BF_MIDDLE);
}
::DrawFrameControl(hdc, &widgetRect, themeData.m_part, themeData.m_state);
}
}
if (!alphaBlend && !context.isInTransparencyLayer())
DIBPixelData::setRGBABitmapAlpha(windowsContext.hdc(), r, 255);
}
bool RenderThemeWin::paintButton(const RenderObject& o, const PaintInfo& i, const IntRect& r)
{
drawControl(i.context(), o, buttonTheme(), getThemeData(o), r);
return false;
}
void RenderThemeWin::adjustInnerSpinButtonStyle(RenderStyle& style, const Element*) const
{
int width = ::GetSystemMetrics(SM_CXVSCROLL);
if (width <= 0)
width = 17; // Vista's default.
style.setWidth(Length(width, Fixed));
style.setMinWidth(Length(width, Fixed));
}
bool RenderThemeWin::paintInnerSpinButton(const RenderObject& o, const PaintInfo& i, const IntRect& r)
{
// We split the specified rectangle into two vertically. We can't draw a
// spin button of which height is less than 2px.
if (r.height() < 2)
return false;
IntRect upRect(r);
upRect.setHeight(r.height() / 2);
IntRect downRect(r);
downRect.setY(upRect.maxY());
downRect.setHeight(r.height() - upRect.height());
drawControl(i.context(), o, spinButtonTheme(), getThemeData(o, SpinButtonUp), upRect);
drawControl(i.context(), o, spinButtonTheme(), getThemeData(o, SpinButtonDown), downRect);
return false;
}
void RenderThemeWin::setCheckboxSize(RenderStyle& style) const
{
// If the width and height are both specified, then we have nothing to do.
if (!style.width().isIntrinsicOrAuto() && !style.height().isAuto())
return;
// FIXME: A hard-coded size of 13 is used. This is wrong but necessary for now. It matches Firefox.
// At different DPI settings on Windows, querying the theme gives you a larger size that accounts for
// the higher DPI. Until our entire engine honors a DPI setting other than 96, we can't rely on the theme's
// metrics.
if (style.width().isIntrinsicOrAuto())
style.setWidth(Length(13, Fixed));
if (style.height().isAuto())
style.setHeight(Length(13, Fixed));
}
bool RenderThemeWin::paintTextField(const RenderObject& o, const PaintInfo& i, const FloatRect& r)
{
drawControl(i.context(), o, textFieldTheme(), getThemeData(o), IntRect(r));
return false;
}
bool RenderThemeWin::paintMenuList(const RenderObject& renderer, const PaintInfo& paintInfo, const FloatRect& rect)
{
HANDLE theme;
int part;
if (haveTheme && (windowsVersion() >= WindowsVista)) {
theme = menuListTheme();
part = CP_READONLY;
} else {
theme = textFieldTheme();
part = TFP_TEXTFIELD;
}
drawControl(paintInfo.context(), renderer, theme, ThemeData(part, determineState(renderer)), IntRect(rect));
return paintMenuListButtonDecorations(downcast<RenderBox>(renderer), paintInfo, FloatRect(rect));
}
void RenderThemeWin::adjustMenuListStyle(RenderStyle& style, const Element* e) const
{
style.resetBorder();
adjustMenuListButtonStyle(style, e);
}
void RenderThemeWin::adjustMenuListButtonStyle(RenderStyle& style, const Element*) const
{
// These are the paddings needed to place the text correctly in the <select> box
const int dropDownBoxPaddingTop = 2;
const int dropDownBoxPaddingRight = style.direction() == TextDirection::LTR ? 4 + dropDownButtonWidth : 4;
const int dropDownBoxPaddingBottom = 2;
const int dropDownBoxPaddingLeft = style.direction() == TextDirection::LTR ? 4 : 4 + dropDownButtonWidth;
// The <select> box must be at least 12px high for the button to render nicely on Windows
const int dropDownBoxMinHeight = 12;
// Position the text correctly within the select box and make the box wide enough to fit the dropdown button
style.setPaddingTop(Length(dropDownBoxPaddingTop, Fixed));
style.setPaddingRight(Length(dropDownBoxPaddingRight, Fixed));
style.setPaddingBottom(Length(dropDownBoxPaddingBottom, Fixed));
style.setPaddingLeft(Length(dropDownBoxPaddingLeft, Fixed));
// Height is locked to auto
style.setHeight(Length(Auto));
// Calculate our min-height
int minHeight = style.fontMetrics().height();
minHeight = std::max(minHeight, dropDownBoxMinHeight);
style.setMinHeight(Length(minHeight, Fixed));
style.setLineHeight(RenderStyle::initialLineHeight());
// White-space is locked to pre
style.setWhiteSpace(WhiteSpace::Pre);
}
bool RenderThemeWin::paintMenuListButtonDecorations(const RenderBox& renderer, const PaintInfo& paintInfo, const FloatRect& rect)
{
// FIXME: Don't make hardcoded assumptions about the thickness of the textfield border.
int borderThickness = haveTheme ? 1 : 2;
// Paint the dropdown button on the inner edge of the text field,
// leaving space for the text field's 1px border
IntRect buttonRect(rect);
buttonRect.inflate(-borderThickness);
if (renderer.style().direction() == TextDirection::LTR)
buttonRect.setX(buttonRect.maxX() - dropDownButtonWidth);
buttonRect.setWidth(dropDownButtonWidth);
if ((windowsVersion() >= WindowsVista)) {
// Outset the top, right, and bottom borders of the button so that they coincide with the <select>'s border.
buttonRect.setY(buttonRect.y() - vistaMenuListButtonOutset);
buttonRect.setHeight(buttonRect.height() + 2 * vistaMenuListButtonOutset);
buttonRect.setWidth(buttonRect.width() + vistaMenuListButtonOutset);
}
drawControl(paintInfo.context(), renderer, menuListTheme(), getThemeData(renderer), buttonRect);
return false;
}
const int trackWidth = 4;
bool RenderThemeWin::paintSliderTrack(const RenderObject& o, const PaintInfo& i, const IntRect& r)
{
IntRect bounds = r;
if (o.style().appearance() == SliderHorizontalPart) {
bounds.setHeight(trackWidth);
bounds.setY(r.y() + r.height() / 2 - trackWidth / 2);
} else if (o.style().appearance() == SliderVerticalPart) {
bounds.setWidth(trackWidth);
bounds.setX(r.x() + r.width() / 2 - trackWidth / 2);
}
drawControl(i.context(), o, sliderTheme(), getThemeData(o), bounds);
return false;
}
bool RenderThemeWin::paintSliderThumb(const RenderObject& o, const PaintInfo& i, const IntRect& r)
{
drawControl(i.context(), o, sliderTheme(), getThemeData(o), r);
return false;
}
const int sliderThumbWidth = 7;
const int sliderThumbHeight = 15;
void RenderThemeWin::adjustSliderThumbSize(RenderStyle& style, const Element*) const
{
ControlPart part = style.appearance();
if (part == SliderThumbVerticalPart) {
style.setWidth(Length(sliderThumbHeight, Fixed));
style.setHeight(Length(sliderThumbWidth, Fixed));
} else if (part == SliderThumbHorizontalPart) {
style.setWidth(Length(sliderThumbWidth, Fixed));
style.setHeight(Length(sliderThumbHeight, Fixed));
}
#if ENABLE(VIDEO) && USE(CG)
else if (part == MediaSliderThumbPart || part == MediaVolumeSliderThumbPart)
RenderMediaControls::adjustMediaSliderThumbSize(style);
#endif
}
bool RenderThemeWin::paintSearchField(const RenderObject& o, const PaintInfo& i, const IntRect& r)
{
return paintTextField(o, i, r);
}
void RenderThemeWin::adjustSearchFieldStyle(RenderStyle& style, const Element* e) const
{
// Override paddingSize to match AppKit text positioning.
const int padding = 1;
style.setPaddingLeft(Length(padding, Fixed));
style.setPaddingRight(Length(padding, Fixed));
style.setPaddingTop(Length(padding, Fixed));
style.setPaddingBottom(Length(padding, Fixed));
if (e && e->focused() && e->document().frame()->selection().isFocusedAndActive())
style.setOutlineOffset(-2);
}
bool RenderThemeWin::paintSearchFieldCancelButton(const RenderBox& o, const PaintInfo& paintInfo, const IntRect& r)
{
IntRect bounds = r;
ASSERT(o.parent());
if (!is<RenderBox>(o.parent()))
return false;
IntRect parentBox = downcast<RenderBox>(*o.parent()).absoluteContentBox();
// Make sure the scaled button stays square and will fit in its parent's box
bounds.setHeight(std::min(parentBox.width(), std::min(parentBox.height(), bounds.height())));
bounds.setWidth(bounds.height());
// Center the button vertically. Round up though, so if it has to be one pixel off-center, it will
// be one pixel closer to the bottom of the field. This tends to look better with the text.
bounds.setY(parentBox.y() + (parentBox.height() - bounds.height() + 1) / 2);
static Image& cancelImage = Image::loadPlatformResource("searchCancel").leakRef();
static Image& cancelPressedImage = Image::loadPlatformResource("searchCancelPressed").leakRef();
paintInfo.context().drawImage(isPressed(o) ? cancelPressedImage : cancelImage, bounds);
return false;
}
void RenderThemeWin::adjustSearchFieldCancelButtonStyle(RenderStyle& style, const Element*) const
{
// Scale the button size based on the font size
float fontScale = style.computedFontPixelSize() / defaultControlFontPixelSize;
int cancelButtonSize = lroundf(std::min(std::max(minCancelButtonSize, defaultCancelButtonSize * fontScale), maxCancelButtonSize));
style.setWidth(Length(cancelButtonSize, Fixed));
style.setHeight(Length(cancelButtonSize, Fixed));
}
void RenderThemeWin::adjustSearchFieldDecorationPartStyle(RenderStyle& style, const Element*) const
{
IntSize emptySize(1, 11);
style.setWidth(Length(emptySize.width(), Fixed));
style.setHeight(Length(emptySize.height(), Fixed));
}
void RenderThemeWin::adjustSearchFieldResultsDecorationPartStyle(RenderStyle& style, const Element*) const
{
// Scale the decoration size based on the font size
float fontScale = style.computedFontPixelSize() / defaultControlFontPixelSize;
int magnifierSize = lroundf(std::min(std::max(minSearchFieldResultsDecorationSize, defaultSearchFieldResultsDecorationSize * fontScale),
maxSearchFieldResultsDecorationSize));
style.setWidth(Length(magnifierSize, Fixed));
style.setHeight(Length(magnifierSize, Fixed));
}
bool RenderThemeWin::paintSearchFieldResultsDecorationPart(const RenderBox& o, const PaintInfo& paintInfo, const IntRect& r)
{
IntRect bounds = r;
ASSERT(o.parent());
if (!is<RenderBox>(o.parent()))
return false;
IntRect parentBox = downcast<RenderBox>(*o.parent()).absoluteContentBox();
// Make sure the scaled decoration stays square and will fit in its parent's box
bounds.setHeight(std::min(parentBox.width(), std::min(parentBox.height(), bounds.height())));
bounds.setWidth(bounds.height());
// Center the decoration vertically. Round up though, so if it has to be one pixel off-center, it will
// be one pixel closer to the bottom of the field. This tends to look better with the text.
bounds.setY(parentBox.y() + (parentBox.height() - bounds.height() + 1) / 2);
static Image& magnifierImage = Image::loadPlatformResource("searchMagnifier").leakRef();
paintInfo.context().drawImage(magnifierImage, bounds);
return false;
}
void RenderThemeWin::adjustSearchFieldResultsButtonStyle(RenderStyle& style, const Element*) const
{
// Scale the button size based on the font size
float fontScale = style.computedFontPixelSize() / defaultControlFontPixelSize;
int magnifierHeight = lroundf(std::min(std::max(minSearchFieldResultsDecorationSize, defaultSearchFieldResultsDecorationSize * fontScale),
maxSearchFieldResultsDecorationSize));
int magnifierWidth = lroundf(magnifierHeight * defaultSearchFieldResultsButtonWidth / defaultSearchFieldResultsDecorationSize);
style.setWidth(Length(magnifierWidth, Fixed));
style.setHeight(Length(magnifierHeight, Fixed));
}
bool RenderThemeWin::paintSearchFieldResultsButton(const RenderBox& o, const PaintInfo& paintInfo, const IntRect& r)
{
IntRect bounds = r;
ASSERT(o.parent());
if (!o.parent())
return false;
if (!is<RenderBox>(o.parent()))
return false;
IntRect parentBox = downcast<RenderBox>(*o.parent()).absoluteContentBox();
// Make sure the scaled decoration will fit in its parent's box
bounds.setHeight(std::min(parentBox.height(), bounds.height()));
bounds.setWidth(std::min<int>(parentBox.width(), bounds.height() * defaultSearchFieldResultsButtonWidth / defaultSearchFieldResultsDecorationSize));
// Center the button vertically. Round up though, so if it has to be one pixel off-center, it will
// be one pixel closer to the bottom of the field. This tends to look better with the text.
bounds.setY(parentBox.y() + (parentBox.height() - bounds.height() + 1) / 2);
static Image& magnifierImage = Image::loadPlatformResource("searchMagnifierResults").leakRef();
paintInfo.context().drawImage(magnifierImage, bounds);
return false;
}
// Map a CSSValue* system color to an index understood by GetSysColor
static int cssValueIdToSysColorIndex(CSSValueID cssValueId)
{
switch (cssValueId) {
case CSSValueActiveborder: return COLOR_ACTIVEBORDER;
case CSSValueActivecaption: return COLOR_ACTIVECAPTION;
case CSSValueAppworkspace: return COLOR_APPWORKSPACE;
case CSSValueBackground: return COLOR_BACKGROUND;
case CSSValueButtonface: return COLOR_BTNFACE;
case CSSValueButtonhighlight: return COLOR_BTNHIGHLIGHT;
case CSSValueButtonshadow: return COLOR_BTNSHADOW;
case CSSValueButtontext: return COLOR_BTNTEXT;
case CSSValueCaptiontext: return COLOR_CAPTIONTEXT;
case CSSValueGraytext: return COLOR_GRAYTEXT;
case CSSValueHighlight: return COLOR_HIGHLIGHT;
case CSSValueHighlighttext: return COLOR_HIGHLIGHTTEXT;
case CSSValueInactiveborder: return COLOR_INACTIVEBORDER;
case CSSValueInactivecaption: return COLOR_INACTIVECAPTION;
case CSSValueInactivecaptiontext: return COLOR_INACTIVECAPTIONTEXT;
case CSSValueInfobackground: return COLOR_INFOBK;
case CSSValueInfotext: return COLOR_INFOTEXT;
case CSSValueMenu: return COLOR_MENU;
case CSSValueMenutext: return COLOR_MENUTEXT;
case CSSValueScrollbar: return COLOR_SCROLLBAR;
case CSSValueThreeddarkshadow: return COLOR_3DDKSHADOW;
case CSSValueThreedface: return COLOR_3DFACE;
case CSSValueThreedhighlight: return COLOR_3DHIGHLIGHT;
case CSSValueThreedlightshadow: return COLOR_3DLIGHT;
case CSSValueThreedshadow: return COLOR_3DSHADOW;
case CSSValueWindow: return COLOR_WINDOW;
case CSSValueWindowframe: return COLOR_WINDOWFRAME;
case CSSValueWindowtext: return COLOR_WINDOWTEXT;
default: return -1; // Unsupported CSSValue
}
}
Color RenderThemeWin::systemColor(CSSValueID cssValueId, OptionSet<StyleColor::Options> options) const
{
int sysColorIndex = cssValueIdToSysColorIndex(cssValueId);
if (sysColorIndex == -1)
return RenderTheme::systemColor(cssValueId, options);
COLORREF color = GetSysColor(sysColorIndex);
return Color(GetRValue(color), GetGValue(color), GetBValue(color));
}
#if ENABLE(VIDEO)
static void fillBufferWithContentsOfFile(FileSystem::PlatformFileHandle file, long long filesize, Vector<char>& buffer)
{
// Load the file content into buffer
buffer.resize(filesize + 1);
int bufferPosition = 0;
int bufferReadSize = 4096;
int bytesRead = 0;
while (filesize > bufferPosition) {
if (filesize - bufferPosition < bufferReadSize)
bufferReadSize = filesize - bufferPosition;
bytesRead = FileSystem::readFromFile(file, buffer.data() + bufferPosition, bufferReadSize);
if (bytesRead != bufferReadSize) {
buffer.clear();
return;
}
bufferPosition += bufferReadSize;
}
buffer[filesize] = 0;
}
String RenderThemeWin::stringWithContentsOfFile(const String& name, const String& type)
{
#if USE(CF)
RetainPtr<CFURLRef> requestedURLRef = adoptCF(CFBundleCopyResourceURL(webKitBundle(), name.createCFString().get(), type.createCFString().get(), 0));
if (!requestedURLRef)
return String();
UInt8 requestedFilePath[MAX_PATH];
if (!CFURLGetFileSystemRepresentation(requestedURLRef.get(), false, requestedFilePath, MAX_PATH))
return String();
FileSystem::PlatformFileHandle requestedFileHandle = FileSystem::openFile(requestedFilePath, FileSystem::FileOpenMode::Read);
if (!FileSystem::isHandleValid(requestedFileHandle))
return String();
long long filesize = -1;
if (!FileSystem::getFileSize(requestedFileHandle, filesize)) {
FileSystem::closeFile(requestedFileHandle);
return String();
}
Vector<char> fileContents;
fillBufferWithContentsOfFile(requestedFileHandle, filesize, fileContents);
FileSystem::closeFile(requestedFileHandle);
return String(fileContents.data(), static_cast<size_t>(filesize));
#else
return emptyString();
#endif
}
String RenderThemeWin::mediaControlsStyleSheet()
{
#if ENABLE(MEDIA_CONTROLS_SCRIPT)
if (m_mediaControlsStyleSheet.isEmpty())
m_mediaControlsStyleSheet = stringWithContentsOfFile("mediaControlsApple"_s, "css"_s);
return m_mediaControlsStyleSheet;
#else
return emptyString();
#endif
}
String RenderThemeWin::mediaControlsScript()
{
#if ENABLE(MEDIA_CONTROLS_SCRIPT)
if (m_mediaControlsScript.isEmpty()) {
StringBuilder scriptBuilder;
scriptBuilder.append(stringWithContentsOfFile("mediaControlsLocalizedStrings"_s, "js"_s));
scriptBuilder.append(stringWithContentsOfFile("mediaControlsApple"_s, "js"_s));
m_mediaControlsScript = scriptBuilder.toString();
}
return m_mediaControlsScript;
#else
return emptyString();
#endif
}
#endif
#if ENABLE(METER_ELEMENT)
void RenderThemeWin::adjustMeterStyle(RenderStyle& style, const Element*) const
{
style.setBoxShadow(nullptr);
}
bool RenderThemeWin::supportsMeter(ControlPart part) const
{
switch (part) {
case MeterPart:
return true;
default:
return false;
}
}
IntSize RenderThemeWin::meterSizeForBounds(const RenderMeter&, const IntRect& bounds) const
{
return bounds.size();
}
bool RenderThemeWin::paintMeter(const RenderObject& renderObject, const PaintInfo& paintInfo, const IntRect& rect)
{
if (!is<RenderMeter>(renderObject))
return true;
HTMLMeterElement* element = downcast<RenderMeter>(renderObject).meterElement();
ThemeData theme = getThemeData(renderObject);
int remaining = static_cast<int>((1.0 - element->valueRatio()) * static_cast<double>(rect.size().width()));
// Draw the background
drawControl(paintInfo.context(), renderObject, progressBarTheme(), theme, rect);
// Draw the progress portion
IntRect completedRect(rect);
completedRect.contract(remaining, 0);
theme.m_part = PP_FILL;
drawControl(paintInfo.context(), renderObject, progressBarTheme(), theme, completedRect);
return true;
}
#endif
}