| /* |
| * This file is part of the WebKit project. |
| * |
| * Copyright (C) 2006 Apple Computer, Inc. |
| * Copyright (C) 2008, 2009 Google, Inc. |
| * 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 "RenderThemeChromiumWin.h" |
| |
| #include <windows.h> |
| #include <uxtheme.h> |
| #include <vssym32.h> |
| |
| #include "ChromiumBridge.h" |
| #include "CSSValueKeywords.h" |
| #include "FontSelector.h" |
| #include "FontUtilsChromiumWin.h" |
| #include "GraphicsContext.h" |
| #include "HTMLMediaElement.h" |
| #include "HTMLNames.h" |
| #include "MediaControlElements.h" |
| #include "RenderBox.h" |
| #include "RenderSlider.h" |
| #include "ScrollbarTheme.h" |
| #include "TransparencyWin.h" |
| #include "WindowsVersion.h" |
| |
| // FIXME: This dependency should eventually be removed. |
| #include <skia/ext/skia_utils_win.h> |
| |
| #define SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(structName, member) \ |
| offsetof(structName, member) + \ |
| (sizeof static_cast<structName*>(0)->member) |
| #define NONCLIENTMETRICS_SIZE_PRE_VISTA \ |
| SIZEOF_STRUCT_WITH_SPECIFIED_LAST_MEMBER(NONCLIENTMETRICS, lfMessageFont) |
| |
| namespace WebCore { |
| |
| namespace { |
| class ThemePainter : public TransparencyWin { |
| public: |
| ThemePainter(GraphicsContext* context, const IntRect& r) |
| { |
| TransformMode transformMode = getTransformMode(context->getCTM()); |
| init(context, getLayerMode(context, transformMode), transformMode, r); |
| } |
| |
| ~ThemePainter() |
| { |
| composite(); |
| } |
| |
| private: |
| static bool canvasHasMultipleLayers(const SkCanvas* canvas) |
| { |
| SkCanvas::LayerIter iter(const_cast<SkCanvas*>(canvas), false); |
| iter.next(); // There is always at least one layer. |
| return !iter.done(); // There is > 1 layer if the the iterator can stil advance. |
| } |
| |
| static LayerMode getLayerMode(GraphicsContext* context, TransformMode transformMode) |
| { |
| if (context->platformContext()->isDrawingToImageBuffer()) // Might have transparent background. |
| return WhiteLayer; |
| else if (canvasHasMultipleLayers(context->platformContext()->canvas())) // Needs antialiasing help. |
| return OpaqueCompositeLayer; |
| else // Nothing interesting. |
| return transformMode == KeepTransform ? NoLayer : OpaqueCompositeLayer; |
| } |
| |
| static TransformMode getTransformMode(const TransformationMatrix& matrix) |
| { |
| if (matrix.b() != 0 || matrix.c() != 0) // Skew. |
| return Untransform; |
| else if (matrix.a() != 1.0 || matrix.d() != 1.0) // Scale. |
| return ScaleTransform; |
| else // Nothing interesting. |
| return KeepTransform; |
| } |
| }; |
| |
| } // namespace |
| |
| static void getNonClientMetrics(NONCLIENTMETRICS* metrics) |
| { |
| static UINT size = WebCore::isVistaOrNewer() ? |
| sizeof(NONCLIENTMETRICS) : NONCLIENTMETRICS_SIZE_PRE_VISTA; |
| metrics->cbSize = size; |
| bool success = !!SystemParametersInfo(SPI_GETNONCLIENTMETRICS, size, metrics, 0); |
| ASSERT(success); |
| } |
| |
| static FontDescription smallSystemFont; |
| static FontDescription menuFont; |
| static FontDescription labelFont; |
| |
| // Internal static helper functions. We don't put them in an anonymous |
| // namespace so they have easier access to the WebCore namespace. |
| |
| static bool supportsFocus(ControlPart appearance) |
| { |
| switch (appearance) { |
| case PushButtonPart: |
| case ButtonPart: |
| case DefaultButtonPart: |
| case SearchFieldPart: |
| case TextFieldPart: |
| case TextAreaPart: |
| return true; |
| } |
| return false; |
| } |
| |
| // Return the height of system font |font| in pixels. We use this size by |
| // default for some non-form-control elements. |
| static float systemFontSize(const LOGFONT& font) |
| { |
| float size = -font.lfHeight; |
| if (size < 0) { |
| HFONT hFont = CreateFontIndirect(&font); |
| if (hFont) { |
| HDC hdc = GetDC(0); // What about printing? Is this the right DC? |
| if (hdc) { |
| HGDIOBJ hObject = SelectObject(hdc, hFont); |
| TEXTMETRIC tm; |
| GetTextMetrics(hdc, &tm); |
| SelectObject(hdc, hObject); |
| ReleaseDC(0, hdc); |
| size = tm.tmAscent; |
| } |
| DeleteObject(hFont); |
| } |
| } |
| |
| // The "codepage 936" bit here is from Gecko; apparently this helps make |
| // fonts more legible in Simplified Chinese where the default font size is |
| // too small. |
| // |
| // FIXME: http://b/1119883 Since this is only used for "small caption", |
| // "menu", and "status bar" objects, I'm not sure how much this even |
| // matters. Plus the Gecko patch went in back in 2002, and maybe this |
| // isn't even relevant anymore. We should investigate whether this should |
| // be removed, or perhaps broadened to be "any CJK locale". |
| // |
| return ((size < 12.0f) && (GetACP() == 936)) ? 12.0f : size; |
| } |
| |
| // Converts |points| to pixels. One point is 1/72 of an inch. |
| static float pointsToPixels(float points) |
| { |
| static float pixelsPerInch = 0.0f; |
| if (!pixelsPerInch) { |
| HDC hdc = GetDC(0); // What about printing? Is this the right DC? |
| if (hdc) { // Can this ever actually be NULL? |
| pixelsPerInch = GetDeviceCaps(hdc, LOGPIXELSY); |
| ReleaseDC(0, hdc); |
| } else { |
| pixelsPerInch = 96.0f; |
| } |
| } |
| |
| static const float pointsPerInch = 72.0f; |
| return points / pointsPerInch * pixelsPerInch; |
| } |
| |
| static double querySystemBlinkInterval(double defaultInterval) |
| { |
| UINT blinkTime = GetCaretBlinkTime(); |
| if (blinkTime == 0) |
| return defaultInterval; |
| if (blinkTime == INFINITE) |
| return 0; |
| return blinkTime / 1000.0; |
| } |
| |
| PassRefPtr<RenderTheme> RenderThemeChromiumWin::create() |
| { |
| return adoptRef(new RenderThemeChromiumWin); |
| } |
| |
| PassRefPtr<RenderTheme> RenderTheme::themeForPage(Page* page) |
| { |
| static RenderTheme* rt = RenderThemeChromiumWin::create().releaseRef(); |
| return rt; |
| } |
| |
| bool RenderThemeChromiumWin::supportsFocusRing(const RenderStyle* style) const |
| { |
| // Let webkit draw one of its halo rings around any focused element, |
| // except push buttons. For buttons we use the windows PBS_DEFAULTED |
| // styling to give it a blue border. |
| return style->appearance() == ButtonPart |
| || style->appearance() == PushButtonPart; |
| } |
| |
| Color RenderThemeChromiumWin::platformActiveSelectionBackgroundColor() const |
| { |
| if (ChromiumBridge::layoutTestMode()) |
| return Color(0x00, 0x00, 0xff); // Royal blue. |
| COLORREF color = GetSysColor(COLOR_HIGHLIGHT); |
| return Color(GetRValue(color), GetGValue(color), GetBValue(color), 0xff); |
| } |
| |
| Color RenderThemeChromiumWin::platformInactiveSelectionBackgroundColor() const |
| { |
| if (ChromiumBridge::layoutTestMode()) |
| return Color(0x99, 0x99, 0x99); // Medium gray. |
| COLORREF color = GetSysColor(COLOR_GRAYTEXT); |
| return Color(GetRValue(color), GetGValue(color), GetBValue(color), 0xff); |
| } |
| |
| Color RenderThemeChromiumWin::platformActiveSelectionForegroundColor() const |
| { |
| if (ChromiumBridge::layoutTestMode()) |
| return Color(0xff, 0xff, 0xcc); // Pale yellow. |
| COLORREF color = GetSysColor(COLOR_HIGHLIGHTTEXT); |
| return Color(GetRValue(color), GetGValue(color), GetBValue(color), 0xff); |
| } |
| |
| Color RenderThemeChromiumWin::platformInactiveSelectionForegroundColor() const |
| { |
| return Color::white; |
| } |
| |
| Color RenderThemeChromiumWin::platformActiveTextSearchHighlightColor() const |
| { |
| return Color(0xff, 0x96, 0x32); // Orange. |
| } |
| |
| Color RenderThemeChromiumWin::platformInactiveTextSearchHighlightColor() const |
| { |
| return Color(0xff, 0xff, 0x96); // Yellow. |
| } |
| |
| void RenderThemeChromiumWin::systemFont(int propId, FontDescription& fontDescription) const |
| { |
| // This logic owes much to RenderThemeSafari.cpp. |
| FontDescription* cachedDesc = 0; |
| AtomicString faceName; |
| float fontSize = 0; |
| switch (propId) { |
| case CSSValueSmallCaption: |
| cachedDesc = &smallSystemFont; |
| if (!smallSystemFont.isAbsoluteSize()) { |
| NONCLIENTMETRICS metrics; |
| getNonClientMetrics(&metrics); |
| faceName = AtomicString(metrics.lfSmCaptionFont.lfFaceName, wcslen(metrics.lfSmCaptionFont.lfFaceName)); |
| fontSize = systemFontSize(metrics.lfSmCaptionFont); |
| } |
| break; |
| case CSSValueMenu: |
| cachedDesc = &menuFont; |
| if (!menuFont.isAbsoluteSize()) { |
| NONCLIENTMETRICS metrics; |
| getNonClientMetrics(&metrics); |
| faceName = AtomicString(metrics.lfMenuFont.lfFaceName, wcslen(metrics.lfMenuFont.lfFaceName)); |
| fontSize = systemFontSize(metrics.lfMenuFont); |
| } |
| break; |
| case CSSValueStatusBar: |
| cachedDesc = &labelFont; |
| if (!labelFont.isAbsoluteSize()) { |
| NONCLIENTMETRICS metrics; |
| getNonClientMetrics(&metrics); |
| faceName = metrics.lfStatusFont.lfFaceName; |
| fontSize = systemFontSize(metrics.lfStatusFont); |
| } |
| break; |
| case CSSValueWebkitMiniControl: |
| case CSSValueWebkitSmallControl: |
| case CSSValueWebkitControl: |
| faceName = defaultGUIFont(); |
| // Why 2 points smaller? Because that's what Gecko does. |
| fontSize = defaultFontSize - pointsToPixels(2); |
| break; |
| default: |
| faceName = defaultGUIFont(); |
| fontSize = defaultFontSize; |
| break; |
| } |
| |
| if (!cachedDesc) |
| cachedDesc = &fontDescription; |
| |
| if (fontSize) { |
| cachedDesc->firstFamily().setFamily(faceName); |
| cachedDesc->setIsAbsoluteSize(true); |
| cachedDesc->setGenericFamily(FontDescription::NoFamily); |
| cachedDesc->setSpecifiedSize(fontSize); |
| cachedDesc->setWeight(FontWeightNormal); |
| cachedDesc->setItalic(false); |
| } |
| fontDescription = *cachedDesc; |
| } |
| |
| void RenderThemeChromiumWin::adjustSliderThumbSize(RenderObject* o) const |
| { |
| // These sizes match what WinXP draws for various menus. |
| const int sliderThumbAlongAxis = 11; |
| const int sliderThumbAcrossAxis = 21; |
| if (o->style()->appearance() == SliderThumbHorizontalPart || o->style()->appearance() == MediaSliderThumbPart) { |
| o->style()->setWidth(Length(sliderThumbAlongAxis, Fixed)); |
| o->style()->setHeight(Length(sliderThumbAcrossAxis, Fixed)); |
| } else if (o->style()->appearance() == SliderThumbVerticalPart) { |
| o->style()->setWidth(Length(sliderThumbAcrossAxis, Fixed)); |
| o->style()->setHeight(Length(sliderThumbAlongAxis, Fixed)); |
| } |
| } |
| |
| bool RenderThemeChromiumWin::paintCheckbox(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| return paintButton(o, i, r); |
| } |
| bool RenderThemeChromiumWin::paintRadio(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| return paintButton(o, i, r); |
| } |
| |
| bool RenderThemeChromiumWin::paintButton(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| const ThemeData& themeData = getThemeData(o); |
| |
| WebCore::ThemePainter painter(i.context, r); |
| ChromiumBridge::paintButton(painter.context(), |
| themeData.m_part, |
| themeData.m_state, |
| themeData.m_classicState, |
| painter.drawRect()); |
| return false; |
| } |
| |
| bool RenderThemeChromiumWin::paintTextField(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| return paintTextFieldInternal(o, i, r, true); |
| } |
| |
| bool RenderThemeChromiumWin::paintSliderTrack(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| const ThemeData& themeData = getThemeData(o); |
| |
| WebCore::ThemePainter painter(i.context, r); |
| ChromiumBridge::paintTrackbar(painter.context(), |
| themeData.m_part, |
| themeData.m_state, |
| themeData.m_classicState, |
| painter.drawRect()); |
| return false; |
| } |
| |
| bool RenderThemeChromiumWin::paintSliderThumb(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| return paintSliderTrack(o, i, r); |
| } |
| |
| // Used to paint unstyled menulists (i.e. with the default border) |
| bool RenderThemeChromiumWin::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& r) |
| { |
| if (!o->isBox()) |
| return false; |
| |
| const RenderBox* box = toRenderBox(o); |
| int borderRight = box->borderRight(); |
| int borderLeft = box->borderLeft(); |
| int borderTop = box->borderTop(); |
| int borderBottom = box->borderBottom(); |
| |
| // If all the borders are 0, then tell skia not to paint the border on the |
| // textfield. FIXME: http://b/1210017 Figure out how to get Windows to not |
| // draw individual borders and then pass that to skia so we can avoid |
| // drawing any borders that are set to 0. For non-zero borders, we draw the |
| // border, but webkit just draws over it. |
| bool drawEdges = !(borderRight == 0 && borderLeft == 0 && borderTop == 0 && borderBottom == 0); |
| |
| paintTextFieldInternal(o, i, r, drawEdges); |
| |
| // Take padding and border into account. If the MenuList is smaller than |
| // the size of a button, make sure to shrink it appropriately and not put |
| // its x position to the left of the menulist. |
| const int buttonWidth = GetSystemMetrics(SM_CXVSCROLL); |
| int spacingLeft = borderLeft + box->paddingLeft(); |
| int spacingRight = borderRight + box->paddingRight(); |
| int spacingTop = borderTop + box->paddingTop(); |
| int spacingBottom = borderBottom + box->paddingBottom(); |
| |
| int buttonX; |
| if (r.right() - r.x() < buttonWidth) |
| buttonX = r.x(); |
| else |
| buttonX = o->style()->direction() == LTR ? r.right() - spacingRight - buttonWidth : r.x() + spacingLeft; |
| |
| // Compute the rectangle of the button in the destination image. |
| IntRect rect(buttonX, |
| r.y() + spacingTop, |
| std::min(buttonWidth, r.right() - r.x()), |
| r.height() - (spacingTop + spacingBottom)); |
| |
| // Get the correct theme data for a textfield and paint the menu. |
| WebCore::ThemePainter painter(i.context, rect); |
| ChromiumBridge::paintMenuList(painter.context(), |
| CP_DROPDOWNBUTTON, |
| determineState(o), |
| determineClassicState(o), |
| painter.drawRect()); |
| return false; |
| } |
| |
| // static |
| void RenderThemeChromiumWin::setDefaultFontSize(int fontSize) |
| { |
| RenderThemeChromiumSkia::setDefaultFontSize(fontSize); |
| |
| // Reset cached fonts. |
| smallSystemFont = menuFont = labelFont = FontDescription(); |
| } |
| |
| double RenderThemeChromiumWin::caretBlinkIntervalInternal() const |
| { |
| // This involves a system call, so we cache the result. |
| static double blinkInterval = querySystemBlinkInterval(RenderTheme::caretBlinkInterval()); |
| return blinkInterval; |
| } |
| |
| unsigned RenderThemeChromiumWin::determineState(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 = ETS_READONLY; // Readonly is supported on textfields. |
| else if (isPressed(o)) // Active overrides hover and focused. |
| result = TS_PRESSED; |
| else if (supportsFocus(appearance) && isFocused(o)) |
| result = ETS_FOCUSED; |
| else if (isHovered(o)) |
| result = TS_HOT; |
| if (isChecked(o)) |
| result += 4; // 4 unchecked states, 4 checked states. |
| return result; |
| } |
| |
| unsigned RenderThemeChromiumWin::determineSliderThumbState(RenderObject* o) |
| { |
| unsigned result = TUS_NORMAL; |
| if (!isEnabled(o->parent())) |
| result = TUS_DISABLED; |
| else if (supportsFocus(o->style()->appearance()) && isFocused(o->parent())) |
| result = TUS_FOCUSED; |
| else if (static_cast<RenderSlider*>(o->parent())->inDragMode()) |
| result = TUS_PRESSED; |
| else if (isHovered(o)) |
| result = TUS_HOT; |
| return result; |
| } |
| |
| unsigned RenderThemeChromiumWin::determineClassicState(RenderObject* o) |
| { |
| unsigned result = 0; |
| if (!isEnabled(o)) |
| result = DFCS_INACTIVE; |
| else if (isPressed(o)) // Active supersedes hover |
| result = DFCS_PUSHED; |
| else if (isHovered(o)) |
| result = DFCS_HOT; |
| if (isChecked(o)) |
| result |= DFCS_CHECKED; |
| return result; |
| } |
| |
| ThemeData RenderThemeChromiumWin::getThemeData(RenderObject* o) |
| { |
| ThemeData result; |
| switch (o->style()->appearance()) { |
| case CheckboxPart: |
| result.m_part = BP_CHECKBOX; |
| result.m_state = determineState(o); |
| result.m_classicState = DFCS_BUTTONCHECK; |
| break; |
| case RadioPart: |
| result.m_part = BP_RADIOBUTTON; |
| result.m_state = determineState(o); |
| result.m_classicState = DFCS_BUTTONRADIO; |
| break; |
| case PushButtonPart: |
| case ButtonPart: |
| result.m_part = BP_PUSHBUTTON; |
| result.m_state = determineState(o); |
| result.m_classicState = DFCS_BUTTONPUSH; |
| break; |
| case SliderHorizontalPart: |
| result.m_part = TKP_TRACK; |
| result.m_state = TRS_NORMAL; |
| break; |
| case SliderVerticalPart: |
| result.m_part = TKP_TRACKVERT; |
| result.m_state = TRVS_NORMAL; |
| break; |
| case SliderThumbHorizontalPart: |
| result.m_part = TKP_THUMBBOTTOM; |
| result.m_state = determineSliderThumbState(o); |
| break; |
| case SliderThumbVerticalPart: |
| result.m_part = TKP_THUMBVERT; |
| result.m_state = determineSliderThumbState(o); |
| break; |
| case ListboxPart: |
| case MenulistPart: |
| case SearchFieldPart: |
| case TextFieldPart: |
| case TextAreaPart: |
| result.m_part = EP_EDITTEXT; |
| result.m_state = determineState(o); |
| break; |
| } |
| |
| result.m_classicState |= determineClassicState(o); |
| |
| return result; |
| } |
| |
| bool RenderThemeChromiumWin::paintTextFieldInternal(RenderObject* o, |
| const RenderObject::PaintInfo& i, |
| const IntRect& r, |
| bool drawEdges) |
| { |
| // Nasty hack to make us not paint the border on text fields with a |
| // border-radius. Webkit paints elements with border-radius for us. |
| // FIXME: Get rid of this if-check once we can properly clip rounded |
| // borders: http://b/1112604 and http://b/1108635 |
| // FIXME: make sure we do the right thing if css background-clip is set. |
| if (o->style()->hasBorderRadius()) |
| return false; |
| |
| const ThemeData& themeData = getThemeData(o); |
| |
| // Fallback to white if the specified color object is invalid. |
| Color backgroundColor(Color::white); |
| if (o->style()->backgroundColor().isValid()) { |
| backgroundColor = o->style()->backgroundColor(); |
| } |
| |
| // If we have background-image, don't fill the content area to expose the |
| // parent's background. Also, we shouldn't fill the content area if the |
| // alpha of the color is 0. The API of Windows GDI ignores the alpha. |
| // |
| // Note that we should paint the content area white if we have neither the |
| // background color nor background image explicitly specified to keep the |
| // appearance of select element consistent with other browsers. |
| bool fillContentArea = !o->style()->hasBackgroundImage() && backgroundColor.alpha() != 0; |
| |
| WebCore::ThemePainter painter(i.context, r); |
| ChromiumBridge::paintTextField(painter.context(), |
| themeData.m_part, |
| themeData.m_state, |
| themeData.m_classicState, |
| painter.drawRect(), |
| backgroundColor, |
| fillContentArea, |
| drawEdges); |
| return false; |
| } |
| |
| } // namespace WebCore |
