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Diffstat (limited to '')
| -rw-r--r-- | widget/windows/nsLookAndFeel.cpp | 976 |
1 files changed, 976 insertions, 0 deletions
diff --git a/widget/windows/nsLookAndFeel.cpp b/widget/windows/nsLookAndFeel.cpp new file mode 100644 index 0000000000..4b7b732727 --- /dev/null +++ b/widget/windows/nsLookAndFeel.cpp @@ -0,0 +1,976 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsLookAndFeel.h" +#include <windows.h> +#include <shellapi.h> +#include "nsStyleConsts.h" +#include "nsUXThemeData.h" +#include "nsUXThemeConstants.h" +#include "nsWindowsHelpers.h" +#include "WinUtils.h" +#include "mozilla/FontPropertyTypes.h" +#include "mozilla/Telemetry.h" +#include "mozilla/WindowsVersion.h" +#include "gfxFontConstants.h" +#include "gfxWindowsPlatform.h" + +using namespace mozilla; +using namespace mozilla::widget; + +// static +LookAndFeel::OperatingSystemVersion nsLookAndFeel::GetOperatingSystemVersion() { + static OperatingSystemVersion version = OperatingSystemVersion::Unknown; + + if (version != OperatingSystemVersion::Unknown) { + return version; + } + + if (IsWin10OrLater()) { + version = OperatingSystemVersion::Windows10; + } else if (IsWin8OrLater()) { + version = OperatingSystemVersion::Windows8; + } else { + version = OperatingSystemVersion::Windows7; + } + + return version; +} + +static nsresult GetColorFromTheme(nsUXThemeClass cls, int32_t aPart, + int32_t aState, int32_t aPropId, + nscolor& aColor) { + COLORREF color; + HRESULT hr = GetThemeColor(nsUXThemeData::GetTheme(cls), aPart, aState, + aPropId, &color); + if (hr == S_OK) { + aColor = COLOREF_2_NSRGB(color); + return NS_OK; + } + return NS_ERROR_FAILURE; +} + +static int32_t GetSystemParam(long flag, int32_t def) { + DWORD value; + return ::SystemParametersInfo(flag, 0, &value, 0) ? value : def; +} + +static nsresult SystemWantsDarkTheme(int32_t& darkThemeEnabled) { + if (!IsWin10OrLater()) { + darkThemeEnabled = 0; + return NS_OK; + } + + nsresult rv = NS_OK; + nsCOMPtr<nsIWindowsRegKey> personalizeKey = + do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + rv = personalizeKey->Open( + nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, + nsLiteralString( + u"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize"), + nsIWindowsRegKey::ACCESS_QUERY_VALUE); + if (NS_FAILED(rv)) { + return rv; + } + + uint32_t lightThemeEnabled; + rv = + personalizeKey->ReadIntValue(u"AppsUseLightTheme"_ns, &lightThemeEnabled); + if (NS_SUCCEEDED(rv)) { + darkThemeEnabled = !lightThemeEnabled; + } + + return rv; +} + +nsLookAndFeel::nsLookAndFeel(const LookAndFeelCache* aCache) + : nsXPLookAndFeel(), + mUseAccessibilityTheme(0), + mUseDefaultTheme(0), + mNativeThemeId(eWindowsTheme_Generic), + mCaretBlinkTime(-1), + mHasColorMenuHoverText(false), + mHasColorAccent(false), + mHasColorAccentText(false), + mHasColorMediaText(false), + mHasColorCommunicationsText(false), + mInitialized(false) { + mozilla::Telemetry::Accumulate(mozilla::Telemetry::TOUCH_ENABLED_DEVICE, + WinUtils::IsTouchDeviceSupportPresent()); + if (aCache) { + DoSetCache(*aCache); + } +} + +nsLookAndFeel::~nsLookAndFeel() {} + +void nsLookAndFeel::NativeInit() { EnsureInit(); } + +/* virtual */ +void nsLookAndFeel::RefreshImpl() { + nsXPLookAndFeel::RefreshImpl(); + + for (auto e = mSystemFontCache.begin(), end = mSystemFontCache.end(); + e != end; ++e) { + e->mCacheValid = false; + } + mCaretBlinkTime = -1; + + mInitialized = false; +} + +nsresult nsLookAndFeel::NativeGetColor(ColorID aID, nscolor& aColor) { + EnsureInit(); + + nsresult res = NS_OK; + + int idx; + switch (aID) { + case ColorID::WindowBackground: + idx = COLOR_WINDOW; + break; + case ColorID::WindowForeground: + idx = COLOR_WINDOWTEXT; + break; + case ColorID::WidgetBackground: + idx = COLOR_BTNFACE; + break; + case ColorID::WidgetForeground: + idx = COLOR_BTNTEXT; + break; + case ColorID::WidgetSelectBackground: + idx = COLOR_HIGHLIGHT; + break; + case ColorID::WidgetSelectForeground: + idx = COLOR_HIGHLIGHTTEXT; + break; + case ColorID::Widget3DHighlight: + idx = COLOR_BTNHIGHLIGHT; + break; + case ColorID::Widget3DShadow: + idx = COLOR_BTNSHADOW; + break; + case ColorID::TextBackground: + idx = COLOR_WINDOW; + break; + case ColorID::TextForeground: + idx = COLOR_WINDOWTEXT; + break; + case ColorID::TextSelectBackground: + case ColorID::IMESelectedRawTextBackground: + case ColorID::IMESelectedConvertedTextBackground: + idx = COLOR_HIGHLIGHT; + break; + case ColorID::TextSelectForeground: + case ColorID::IMESelectedRawTextForeground: + case ColorID::IMESelectedConvertedTextForeground: + idx = COLOR_HIGHLIGHTTEXT; + break; + case ColorID::IMERawInputBackground: + case ColorID::IMEConvertedTextBackground: + aColor = NS_TRANSPARENT; + return NS_OK; + case ColorID::IMERawInputForeground: + case ColorID::IMEConvertedTextForeground: + aColor = NS_SAME_AS_FOREGROUND_COLOR; + return NS_OK; + case ColorID::IMERawInputUnderline: + case ColorID::IMEConvertedTextUnderline: + aColor = NS_SAME_AS_FOREGROUND_COLOR; + return NS_OK; + case ColorID::IMESelectedRawTextUnderline: + case ColorID::IMESelectedConvertedTextUnderline: + aColor = NS_TRANSPARENT; + return NS_OK; + case ColorID::SpellCheckerUnderline: + aColor = NS_RGB(0xff, 0, 0); + return NS_OK; + + // New CSS 2 Color definitions + case ColorID::Activeborder: + idx = COLOR_ACTIVEBORDER; + break; + case ColorID::Activecaption: + idx = COLOR_ACTIVECAPTION; + break; + case ColorID::Appworkspace: + idx = COLOR_APPWORKSPACE; + break; + case ColorID::Background: + idx = COLOR_BACKGROUND; + break; + case ColorID::Buttonface: + case ColorID::MozButtonhoverface: + idx = COLOR_BTNFACE; + break; + case ColorID::Buttonhighlight: + idx = COLOR_BTNHIGHLIGHT; + break; + case ColorID::Buttonshadow: + idx = COLOR_BTNSHADOW; + break; + case ColorID::Buttontext: + case ColorID::MozButtonhovertext: + idx = COLOR_BTNTEXT; + break; + case ColorID::Captiontext: + idx = COLOR_CAPTIONTEXT; + break; + case ColorID::Graytext: + idx = COLOR_GRAYTEXT; + break; + case ColorID::Highlight: + case ColorID::MozHtmlCellhighlight: + case ColorID::MozMenuhover: + idx = COLOR_HIGHLIGHT; + break; + case ColorID::MozMenubarhovertext: + if (!nsUXThemeData::IsAppThemed()) { + idx = nsUXThemeData::AreFlatMenusEnabled() ? COLOR_HIGHLIGHTTEXT + : COLOR_MENUTEXT; + break; + } + // Fall through + case ColorID::MozMenuhovertext: + if (mHasColorMenuHoverText) { + aColor = mColorMenuHoverText; + return NS_OK; + } + // Fall through + case ColorID::Highlighttext: + case ColorID::MozHtmlCellhighlighttext: + idx = COLOR_HIGHLIGHTTEXT; + break; + case ColorID::Inactiveborder: + idx = COLOR_INACTIVEBORDER; + break; + case ColorID::Inactivecaption: + idx = COLOR_INACTIVECAPTION; + break; + case ColorID::Inactivecaptiontext: + idx = COLOR_INACTIVECAPTIONTEXT; + break; + case ColorID::Infobackground: + idx = COLOR_INFOBK; + break; + case ColorID::Infotext: + idx = COLOR_INFOTEXT; + break; + case ColorID::Menu: + idx = COLOR_MENU; + break; + case ColorID::Menutext: + case ColorID::MozMenubartext: + idx = COLOR_MENUTEXT; + break; + case ColorID::Scrollbar: + idx = COLOR_SCROLLBAR; + break; + case ColorID::Threeddarkshadow: + idx = COLOR_3DDKSHADOW; + break; + case ColorID::Threedface: + idx = COLOR_3DFACE; + break; + case ColorID::Threedhighlight: + idx = COLOR_3DHIGHLIGHT; + break; + case ColorID::Threedlightshadow: + idx = COLOR_3DLIGHT; + break; + case ColorID::Threedshadow: + idx = COLOR_3DSHADOW; + break; + case ColorID::Window: + idx = COLOR_WINDOW; + break; + case ColorID::Windowframe: + idx = COLOR_WINDOWFRAME; + break; + case ColorID::Windowtext: + idx = COLOR_WINDOWTEXT; + break; + case ColorID::MozEventreerow: + case ColorID::MozOddtreerow: + case ColorID::Field: + case ColorID::MozCombobox: + idx = COLOR_WINDOW; + break; + case ColorID::Fieldtext: + case ColorID::MozComboboxtext: + idx = COLOR_WINDOWTEXT; + break; + case ColorID::MozDialog: + case ColorID::MozCellhighlight: + idx = COLOR_3DFACE; + break; + case ColorID::MozWinAccentcolor: + if (mHasColorAccent) { + aColor = mColorAccent; + } else { + // Seems to be the default color (hardcoded because of bug 1065998) + aColor = NS_RGB(158, 158, 158); + } + return NS_OK; + case ColorID::MozWinAccentcolortext: + if (mHasColorAccentText) { + aColor = mColorAccentText; + } else { + aColor = NS_RGB(0, 0, 0); + } + return NS_OK; + case ColorID::MozWinMediatext: + if (mHasColorMediaText) { + aColor = mColorMediaText; + return NS_OK; + } + // if we've gotten here just return -moz-dialogtext instead + idx = COLOR_WINDOWTEXT; + break; + case ColorID::MozWinCommunicationstext: + if (mHasColorCommunicationsText) { + aColor = mColorCommunicationsText; + return NS_OK; + } + // if we've gotten here just return -moz-dialogtext instead + idx = COLOR_WINDOWTEXT; + break; + case ColorID::MozDialogtext: + case ColorID::MozCellhighlighttext: + case ColorID::MozColheadertext: + case ColorID::MozColheaderhovertext: + idx = COLOR_WINDOWTEXT; + break; + case ColorID::MozDragtargetzone: + idx = COLOR_HIGHLIGHTTEXT; + break; + case ColorID::MozButtondefault: + idx = COLOR_3DDKSHADOW; + break; + case ColorID::MozNativehyperlinktext: + idx = COLOR_HOTLIGHT; + break; + default: + NS_WARNING("Unknown color for nsLookAndFeel"); + idx = COLOR_WINDOW; + res = NS_ERROR_FAILURE; + break; + } + + aColor = GetColorForSysColorIndex(idx); + + return res; +} + +nsresult nsLookAndFeel::NativeGetInt(IntID aID, int32_t& aResult) { + nsresult res = NS_OK; + + switch (aID) { + case IntID::ScrollButtonLeftMouseButtonAction: + aResult = 0; + break; + case IntID::ScrollButtonMiddleMouseButtonAction: + case IntID::ScrollButtonRightMouseButtonAction: + aResult = 3; + break; + case IntID::CaretBlinkTime: + // IntID::CaretBlinkTime is often called by updating editable text + // that has focus. So it should be cached to improve performance. + if (mCaretBlinkTime < 0) { + mCaretBlinkTime = static_cast<int32_t>(::GetCaretBlinkTime()); + } + aResult = mCaretBlinkTime; + break; + case IntID::CaretWidth: + aResult = 1; + break; + case IntID::ShowCaretDuringSelection: + aResult = 0; + break; + case IntID::SelectTextfieldsOnKeyFocus: + // Select textfield content when focused by kbd + // used by EventStateManager::sTextfieldSelectModel + aResult = 1; + break; + case IntID::SubmenuDelay: + // This will default to the Windows' default + // (400ms) on error. + aResult = GetSystemParam(SPI_GETMENUSHOWDELAY, 400); + break; + case IntID::TooltipDelay: + aResult = 500; + break; + case IntID::MenusCanOverlapOSBar: + // we want XUL popups to be able to overlap the task bar. + aResult = 1; + break; + case IntID::DragThresholdX: + // The system metric is the number of pixels at which a drag should + // start. Our look and feel metric is the number of pixels you can + // move before starting a drag, so subtract 1. + + aResult = ::GetSystemMetrics(SM_CXDRAG) - 1; + break; + case IntID::DragThresholdY: + aResult = ::GetSystemMetrics(SM_CYDRAG) - 1; + break; + case IntID::UseAccessibilityTheme: + // High contrast is a misnomer under Win32 -- any theme can be used with + // it, e.g. normal contrast with large fonts, low contrast, etc. The high + // contrast flag really means -- use this theme and don't override it. + if (XRE_IsContentProcess()) { + // If we're running in the content process, then the parent should + // have sent us the accessibility state when nsLookAndFeel + // initialized, and stashed it in the mUseAccessibilityTheme cache. + aResult = mUseAccessibilityTheme; + } else { + // Otherwise, we can ask the OS to see if we're using High Contrast + // mode. + aResult = nsUXThemeData::IsHighContrastOn(); + } + break; + case IntID::ScrollArrowStyle: + aResult = eScrollArrowStyle_Single; + break; + case IntID::ScrollSliderStyle: + aResult = eScrollThumbStyle_Proportional; + break; + case IntID::TreeOpenDelay: + aResult = 1000; + break; + case IntID::TreeCloseDelay: + aResult = 0; + break; + case IntID::TreeLazyScrollDelay: + aResult = 150; + break; + case IntID::TreeScrollDelay: + aResult = 100; + break; + case IntID::TreeScrollLinesMax: + aResult = 3; + break; + case IntID::WindowsClassic: + aResult = !nsUXThemeData::IsAppThemed(); + break; + case IntID::TouchEnabled: + aResult = WinUtils::IsTouchDeviceSupportPresent(); + break; + case IntID::WindowsDefaultTheme: + if (XRE_IsContentProcess()) { + aResult = mUseDefaultTheme; + } else { + aResult = nsUXThemeData::IsDefaultWindowTheme(); + } + break; + case IntID::WindowsThemeIdentifier: + if (XRE_IsContentProcess()) { + aResult = mNativeThemeId; + } else { + aResult = nsUXThemeData::GetNativeThemeId(); + } + break; + + case IntID::OperatingSystemVersionIdentifier: { + aResult = int32_t(GetOperatingSystemVersion()); + break; + } + + case IntID::MacGraphiteTheme: + aResult = 0; + res = NS_ERROR_NOT_IMPLEMENTED; + break; + case IntID::DWMCompositor: + aResult = gfxWindowsPlatform::GetPlatform()->DwmCompositionEnabled(); + break; + case IntID::WindowsAccentColorInTitlebar: { + nscolor unused; + if (NS_WARN_IF(NS_FAILED(GetAccentColor(unused)))) { + aResult = 0; + break; + } + + uint32_t colorPrevalence; + nsresult rv = mDwmKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, + u"SOFTWARE\\Microsoft\\Windows\\DWM"_ns, + nsIWindowsRegKey::ACCESS_QUERY_VALUE); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + // The ColorPrevalence value is set to 1 when the "Show color on title + // bar" setting in the Color section of Window's Personalization settings + // is turned on. + aResult = (NS_SUCCEEDED(mDwmKey->ReadIntValue(u"ColorPrevalence"_ns, + &colorPrevalence)) && + colorPrevalence == 1) + ? 1 + : 0; + + mDwmKey->Close(); + } break; + case IntID::WindowsGlass: + // Aero Glass is only available prior to Windows 8 when DWM is used. + aResult = (gfxWindowsPlatform::GetPlatform()->DwmCompositionEnabled() && + !IsWin8OrLater()); + break; + case IntID::AlertNotificationOrigin: + aResult = 0; + { + // Get task bar window handle + HWND shellWindow = FindWindowW(L"Shell_TrayWnd", nullptr); + + if (shellWindow != nullptr) { + // Determine position + APPBARDATA appBarData; + appBarData.hWnd = shellWindow; + appBarData.cbSize = sizeof(appBarData); + if (SHAppBarMessage(ABM_GETTASKBARPOS, &appBarData)) { + // Set alert origin as a bit field - see LookAndFeel.h + // 0 represents bottom right, sliding vertically. + switch (appBarData.uEdge) { + case ABE_LEFT: + aResult = NS_ALERT_HORIZONTAL | NS_ALERT_LEFT; + break; + case ABE_RIGHT: + aResult = NS_ALERT_HORIZONTAL; + break; + case ABE_TOP: + aResult = NS_ALERT_TOP; + // fall through for the right-to-left handling. + case ABE_BOTTOM: + // If the task bar is right-to-left, + // move the origin to the left + if (::GetWindowLong(shellWindow, GWL_EXSTYLE) & WS_EX_LAYOUTRTL) + aResult |= NS_ALERT_LEFT; + break; + } + } + } + } + break; + case IntID::IMERawInputUnderlineStyle: + case IntID::IMEConvertedTextUnderlineStyle: + aResult = NS_STYLE_TEXT_DECORATION_STYLE_DASHED; + break; + case IntID::IMESelectedRawTextUnderlineStyle: + case IntID::IMESelectedConvertedTextUnderline: + aResult = NS_STYLE_TEXT_DECORATION_STYLE_NONE; + break; + case IntID::SpellCheckerUnderlineStyle: + aResult = NS_STYLE_TEXT_DECORATION_STYLE_WAVY; + break; + case IntID::ScrollbarButtonAutoRepeatBehavior: + aResult = 0; + break; + case IntID::SwipeAnimationEnabled: + aResult = 0; + break; + case IntID::UseOverlayScrollbars: + aResult = false; + break; + case IntID::AllowOverlayScrollbarsOverlap: + aResult = 0; + break; + case IntID::ScrollbarDisplayOnMouseMove: + aResult = 1; + break; + case IntID::ScrollbarFadeBeginDelay: + aResult = 2500; + break; + case IntID::ScrollbarFadeDuration: + aResult = 350; + break; + case IntID::ContextMenuOffsetVertical: + case IntID::ContextMenuOffsetHorizontal: + aResult = 2; + break; + case IntID::SystemUsesDarkTheme: + res = SystemWantsDarkTheme(aResult); + break; + case IntID::PrefersReducedMotion: { + BOOL enableAnimation = TRUE; + ::SystemParametersInfoW(SPI_GETCLIENTAREAANIMATION, 0, &enableAnimation, + 0); + aResult = enableAnimation ? 0 : 1; + break; + } + case IntID::PrimaryPointerCapabilities: { + PointerCapabilities caps = + widget::WinUtils::GetPrimaryPointerCapabilities(); + aResult = static_cast<int32_t>(caps); + break; + } + case IntID::AllPointerCapabilities: { + PointerCapabilities caps = widget::WinUtils::GetAllPointerCapabilities(); + aResult = static_cast<int32_t>(caps); + break; + } + default: + aResult = 0; + res = NS_ERROR_FAILURE; + } + return res; +} + +nsresult nsLookAndFeel::NativeGetFloat(FloatID aID, float& aResult) { + nsresult res = NS_OK; + + switch (aID) { + case FloatID::IMEUnderlineRelativeSize: + aResult = 1.0f; + break; + case FloatID::SpellCheckerUnderlineRelativeSize: + aResult = 1.0f; + break; + default: + aResult = -1.0; + res = NS_ERROR_FAILURE; + } + return res; +} + +LookAndFeelFont nsLookAndFeel::GetLookAndFeelFontInternal( + const LOGFONTW& aLogFont, bool aUseShellDlg) { + LookAndFeelFont result{}; + + result.haveFont() = false; + + // Get scaling factor from physical to logical pixels + double pixelScale = 1.0 / WinUtils::SystemScaleFactor(); + + // The lfHeight is in pixels, and it needs to be adjusted for the + // device it will be displayed on. + // Screens and Printers will differ in DPI + // + // So this accounts for the difference in the DeviceContexts + // The pixelScale will typically be 1.0 for the screen + // (though larger for hi-dpi screens where the Windows resolution + // scale factor is 125% or 150% or even more), and could be + // any value when going to a printer, for example pixelScale is + // 6.25 when going to a 600dpi printer. + float pixelHeight = -aLogFont.lfHeight; + if (pixelHeight < 0) { + nsAutoFont hFont(::CreateFontIndirectW(&aLogFont)); + if (!hFont) { + return result; + } + + nsAutoHDC dc(::GetDC(nullptr)); + HGDIOBJ hObject = ::SelectObject(dc, hFont); + TEXTMETRIC tm; + ::GetTextMetrics(dc, &tm); + ::SelectObject(dc, hObject); + + pixelHeight = tm.tmAscent; + } + + pixelHeight *= pixelScale; + + // we have problem on Simplified Chinese system because the system + // report the default font size is 8 points. but if we use 8, the text + // display very ugly. force it to be at 9 points (12 pixels) on that + // system (cp936), but leave other sizes alone. + if (pixelHeight < 12 && ::GetACP() == 936) { + pixelHeight = 12; + } + + result.haveFont() = true; + + if (aUseShellDlg) { + result.name() = u"MS Shell Dlg 2"_ns; + } else { + result.name() = aLogFont.lfFaceName; + } + + result.size() = pixelHeight; + result.italic() = !!aLogFont.lfItalic; + // FIXME: Other weights? + result.weight() = ((aLogFont.lfWeight == FW_BOLD) ? FontWeight::Bold() + : FontWeight::Normal()) + .ToFloat(); + + return result; +} + +LookAndFeelFont nsLookAndFeel::GetLookAndFeelFont(LookAndFeel::FontID anID) { + if (XRE_IsContentProcess()) { + return mFontCache[size_t(anID)]; + } + + LookAndFeelFont result{}; + + result.haveFont() = false; + + // FontID::Icon is handled differently than the others + if (anID == LookAndFeel::FontID::Icon) { + LOGFONTW logFont; + if (::SystemParametersInfoW(SPI_GETICONTITLELOGFONT, sizeof(logFont), + (PVOID)&logFont, 0)) { + result = GetLookAndFeelFontInternal(logFont, false); + } + return result; + } + + NONCLIENTMETRICSW ncm; + ncm.cbSize = sizeof(NONCLIENTMETRICSW); + if (!::SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, sizeof(ncm), + (PVOID)&ncm, 0)) { + return result; + } + + switch (anID) { + case LookAndFeel::FontID::Menu: + case LookAndFeel::FontID::PullDownMenu: + result = GetLookAndFeelFontInternal(ncm.lfMenuFont, false); + break; + case LookAndFeel::FontID::Caption: + result = GetLookAndFeelFontInternal(ncm.lfCaptionFont, false); + break; + case LookAndFeel::FontID::SmallCaption: + result = GetLookAndFeelFontInternal(ncm.lfSmCaptionFont, false); + break; + case LookAndFeel::FontID::StatusBar: + case LookAndFeel::FontID::Tooltips: + result = GetLookAndFeelFontInternal(ncm.lfStatusFont, false); + break; + case LookAndFeel::FontID::Widget: + case LookAndFeel::FontID::Dialog: + case LookAndFeel::FontID::Button: + case LookAndFeel::FontID::Field: + case LookAndFeel::FontID::List: + // XXX It's not clear to me whether this is exactly the right + // set of LookAndFeel values to map to the dialog font; we may + // want to add or remove cases here after reviewing the visual + // results under various Windows versions. + result = GetLookAndFeelFontInternal(ncm.lfMessageFont, true); + break; + default: + result = GetLookAndFeelFontInternal(ncm.lfMessageFont, false); + break; + } + + return result; +} + +bool nsLookAndFeel::GetSysFont(LookAndFeel::FontID anID, nsString& aFontName, + gfxFontStyle& aFontStyle) { + LookAndFeelFont font = GetLookAndFeelFont(anID); + + if (!font.haveFont()) { + return false; + } + + aFontName = std::move(font.name()); + + aFontStyle.size = font.size(); + + // FIXME: What about oblique? + aFontStyle.style = + font.italic() ? FontSlantStyle::Italic() : FontSlantStyle::Normal(); + + aFontStyle.weight = FontWeight(font.weight()); + + // FIXME: Set aFontStyle->stretch correctly! + aFontStyle.stretch = FontStretch::Normal(); + + aFontStyle.systemFont = true; + + return true; +} + +bool nsLookAndFeel::NativeGetFont(FontID anID, nsString& aFontName, + gfxFontStyle& aFontStyle) { + CachedSystemFont& cacheSlot = mSystemFontCache[size_t(anID)]; + + bool status; + if (cacheSlot.mCacheValid) { + status = cacheSlot.mHaveFont; + if (status) { + aFontName = cacheSlot.mFontName; + aFontStyle = cacheSlot.mFontStyle; + } + } else { + status = GetSysFont(anID, aFontName, aFontStyle); + + cacheSlot.mCacheValid = true; + cacheSlot.mHaveFont = status; + if (status) { + cacheSlot.mFontName = aFontName; + cacheSlot.mFontStyle = aFontStyle; + } + } + return status; +} + +/* virtual */ +char16_t nsLookAndFeel::GetPasswordCharacterImpl() { +#define UNICODE_BLACK_CIRCLE_CHAR 0x25cf + return UNICODE_BLACK_CIRCLE_CHAR; +} + +LookAndFeelCache nsLookAndFeel::GetCacheImpl() { + MOZ_ASSERT(XRE_IsParentProcess()); + + LookAndFeelCache cache = nsXPLookAndFeel::GetCacheImpl(); + + LookAndFeelInt lafInt; + lafInt.id() = IntID::UseAccessibilityTheme; + lafInt.value() = GetInt(IntID::UseAccessibilityTheme); + cache.mInts().AppendElement(lafInt); + + lafInt.id() = IntID::WindowsDefaultTheme; + lafInt.value() = GetInt(IntID::WindowsDefaultTheme); + cache.mInts().AppendElement(lafInt); + + lafInt.id() = IntID::WindowsThemeIdentifier; + lafInt.value() = GetInt(IntID::WindowsThemeIdentifier); + cache.mInts().AppendElement(lafInt); + + for (size_t i = size_t(LookAndFeel::FontID::MINIMUM); + i <= size_t(LookAndFeel::FontID::MAXIMUM); ++i) { + cache.mFonts().AppendElement(GetLookAndFeelFont(LookAndFeel::FontID(i))); + } + + return cache; +} + +void nsLookAndFeel::SetCacheImpl(const LookAndFeelCache& aCache) { + DoSetCache(aCache); +} + +void nsLookAndFeel::DoSetCache(const LookAndFeelCache& aCache) { + MOZ_ASSERT(XRE_IsContentProcess()); + MOZ_RELEASE_ASSERT(aCache.mFonts().Length() == mFontCache.length()); + + for (auto entry : aCache.mInts()) { + switch (entry.id()) { + case IntID::UseAccessibilityTheme: + mUseAccessibilityTheme = entry.value(); + break; + case IntID::WindowsDefaultTheme: + mUseDefaultTheme = entry.value(); + break; + case IntID::WindowsThemeIdentifier: + mNativeThemeId = entry.value(); + break; + default: + MOZ_ASSERT_UNREACHABLE("Bogus Int ID in cache"); + break; + } + } + + size_t i = mFontCache.minIndex(); + for (const auto& font : aCache.mFonts()) { + mFontCache[i] = font; + ++i; + } +} + +/* static */ +nsresult nsLookAndFeel::GetAccentColor(nscolor& aColor) { + nsresult rv; + + if (!mDwmKey) { + mDwmKey = do_CreateInstance("@mozilla.org/windows-registry-key;1", &rv); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + } + + rv = mDwmKey->Open(nsIWindowsRegKey::ROOT_KEY_CURRENT_USER, + u"SOFTWARE\\Microsoft\\Windows\\DWM"_ns, + nsIWindowsRegKey::ACCESS_QUERY_VALUE); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + uint32_t accentColor; + if (NS_SUCCEEDED(mDwmKey->ReadIntValue(u"AccentColor"_ns, &accentColor))) { + // The order of the color components in the DWORD stored in the registry + // happens to be the same order as we store the components in nscolor + // so we can just assign directly here. + aColor = accentColor; + rv = NS_OK; + } else { + rv = NS_ERROR_NOT_AVAILABLE; + } + + mDwmKey->Close(); + + return rv; +} + +/* static */ +nsresult nsLookAndFeel::GetAccentColorText(nscolor& aColor) { + nscolor accentColor; + nsresult rv = GetAccentColor(accentColor); + if (NS_WARN_IF(NS_FAILED(rv))) { + return rv; + } + + // We want the color that we return for text that will be drawn over + // a background that has the accent color to have good contrast with + // the accent color. Windows itself uses either white or black text + // depending on how light or dark the accent color is. We do the same + // here based on the luminance of the accent color with a threshhold + // value. This algorithm should match what Windows does. It comes from: + // + // https://docs.microsoft.com/en-us/windows/uwp/style/color + + float luminance = (NS_GET_R(accentColor) * 2 + NS_GET_G(accentColor) * 5 + + NS_GET_B(accentColor)) / + 8; + + aColor = (luminance <= 128) ? NS_RGB(255, 255, 255) : NS_RGB(0, 0, 0); + + return NS_OK; +} + +nscolor nsLookAndFeel::GetColorForSysColorIndex(int index) { + MOZ_ASSERT(index >= SYS_COLOR_MIN && index <= SYS_COLOR_MAX); + return mSysColorTable[index - SYS_COLOR_MIN]; +} + +void nsLookAndFeel::EnsureInit() { + if (mInitialized) { + return; + } + mInitialized = true; + + nsresult res; + + res = GetAccentColor(mColorAccent); + mHasColorAccent = NS_SUCCEEDED(res); + + res = GetAccentColorText(mColorAccentText); + mHasColorAccentText = NS_SUCCEEDED(res); + + if (nsUXThemeData::IsAppThemed()) { + res = ::GetColorFromTheme(eUXMenu, MENU_POPUPITEM, MPI_HOT, TMT_TEXTCOLOR, + mColorMenuHoverText); + mHasColorMenuHoverText = NS_SUCCEEDED(res); + + res = ::GetColorFromTheme(eUXMediaToolbar, TP_BUTTON, TS_NORMAL, + TMT_TEXTCOLOR, mColorMediaText); + mHasColorMediaText = NS_SUCCEEDED(res); + + res = ::GetColorFromTheme(eUXCommunicationsToolbar, TP_BUTTON, TS_NORMAL, + TMT_TEXTCOLOR, mColorCommunicationsText); + mHasColorCommunicationsText = NS_SUCCEEDED(res); + } + + // Fill out the sys color table. + for (int i = SYS_COLOR_MIN; i <= SYS_COLOR_MAX; ++i) { + DWORD color = ::GetSysColor(i); + mSysColorTable[i - SYS_COLOR_MIN] = COLOREF_2_NSRGB(color); + } + + RecordTelemetry(); +} |