mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
760 lines
23 KiB
C++
760 lines
23 KiB
C++
/* vim: set shiftwidth=4 tabstop=8 autoindent cindent expandtab: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/* the features that media queries can test */
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#include "nsMediaFeatures.h"
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#include "nsGkAtoms.h"
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#include "nsCSSKeywords.h"
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#include "nsStyleConsts.h"
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#include "nsPresContext.h"
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#include "nsCSSValue.h"
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#ifdef XP_WIN
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#include "mozilla/LookAndFeel.h"
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#endif
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#include "nsCSSRuleProcessor.h"
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#include "nsDeviceContext.h"
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#include "nsIDocument.h"
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using namespace mozilla;
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static const nsCSSProps::KTableEntry kOrientationKeywords[] = {
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{ eCSSKeyword_portrait, NS_STYLE_ORIENTATION_PORTRAIT },
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{ eCSSKeyword_landscape, NS_STYLE_ORIENTATION_LANDSCAPE },
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{ eCSSKeyword_UNKNOWN, -1 }
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};
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static const nsCSSProps::KTableEntry kScanKeywords[] = {
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{ eCSSKeyword_progressive, NS_STYLE_SCAN_PROGRESSIVE },
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{ eCSSKeyword_interlace, NS_STYLE_SCAN_INTERLACE },
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{ eCSSKeyword_UNKNOWN, -1 }
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};
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#ifdef XP_WIN
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struct WindowsThemeName {
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LookAndFeel::WindowsTheme id;
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const wchar_t* name;
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};
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// Windows theme identities used in the -moz-windows-theme media query.
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const WindowsThemeName themeStrings[] = {
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{ LookAndFeel::eWindowsTheme_Aero, L"aero" },
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{ LookAndFeel::eWindowsTheme_AeroLite, L"aero-lite" },
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{ LookAndFeel::eWindowsTheme_LunaBlue, L"luna-blue" },
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{ LookAndFeel::eWindowsTheme_LunaOlive, L"luna-olive" },
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{ LookAndFeel::eWindowsTheme_LunaSilver, L"luna-silver" },
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{ LookAndFeel::eWindowsTheme_Royale, L"royale" },
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{ LookAndFeel::eWindowsTheme_Zune, L"zune" },
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{ LookAndFeel::eWindowsTheme_Generic, L"generic" }
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};
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struct OperatingSystemVersionInfo {
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LookAndFeel::OperatingSystemVersion id;
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const wchar_t* name;
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};
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// Os version identities used in the -moz-os-version media query.
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const OperatingSystemVersionInfo osVersionStrings[] = {
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{ LookAndFeel::eOperatingSystemVersion_WindowsXP, L"windows-xp" },
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{ LookAndFeel::eOperatingSystemVersion_WindowsVista, L"windows-vista" },
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{ LookAndFeel::eOperatingSystemVersion_Windows7, L"windows-win7" },
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{ LookAndFeel::eOperatingSystemVersion_Windows8, L"windows-win8" },
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{ LookAndFeel::eOperatingSystemVersion_Windows10, L"windows-win10" }
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};
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#endif
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// A helper for four features below
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static nsSize
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GetSize(nsPresContext* aPresContext)
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{
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nsSize size;
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if (aPresContext->IsRootPaginatedDocument())
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// We want the page size, including unprintable areas and margins.
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size = aPresContext->GetPageSize();
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else
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size = aPresContext->GetVisibleArea().Size();
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return size;
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}
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static nsresult
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GetWidth(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsSize size = GetSize(aPresContext);
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float pixelWidth = aPresContext->AppUnitsToFloatCSSPixels(size.width);
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aResult.SetFloatValue(pixelWidth, eCSSUnit_Pixel);
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return NS_OK;
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}
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static nsresult
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GetHeight(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsSize size = GetSize(aPresContext);
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float pixelHeight = aPresContext->AppUnitsToFloatCSSPixels(size.height);
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aResult.SetFloatValue(pixelHeight, eCSSUnit_Pixel);
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return NS_OK;
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}
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inline static nsDeviceContext*
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GetDeviceContextFor(nsPresContext* aPresContext)
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{
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// It would be nice to call
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// nsLayoutUtils::GetDeviceContextForScreenInfo here, except for two
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// things: (1) it can flush, and flushing is bad here, and (2) it
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// doesn't really get us consistency in multi-monitor situations
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// *anyway*.
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return aPresContext->DeviceContext();
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}
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static bool
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ShouldResistFingerprinting(nsPresContext* aPresContext)
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{
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return nsContentUtils::ShouldResistFingerprinting(aPresContext->GetDocShell());
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}
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// A helper for three features below.
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static nsSize
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GetDeviceSize(nsPresContext* aPresContext)
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{
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nsSize size;
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if (ShouldResistFingerprinting(aPresContext) || aPresContext->IsDeviceSizePageSize()) {
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size = GetSize(aPresContext);
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} else if (aPresContext->IsRootPaginatedDocument()) {
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// We want the page size, including unprintable areas and margins.
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// XXX The spec actually says we want the "page sheet size", but
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// how is that different?
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size = aPresContext->GetPageSize();
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} else {
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GetDeviceContextFor(aPresContext)->
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GetDeviceSurfaceDimensions(size.width, size.height);
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}
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return size;
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}
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static nsresult
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GetDeviceWidth(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsSize size = GetDeviceSize(aPresContext);
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float pixelWidth = aPresContext->AppUnitsToFloatCSSPixels(size.width);
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aResult.SetFloatValue(pixelWidth, eCSSUnit_Pixel);
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return NS_OK;
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}
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static nsresult
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GetDeviceHeight(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsSize size = GetDeviceSize(aPresContext);
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float pixelHeight = aPresContext->AppUnitsToFloatCSSPixels(size.height);
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aResult.SetFloatValue(pixelHeight, eCSSUnit_Pixel);
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return NS_OK;
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}
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static nsresult
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GetOrientation(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsSize size = GetSize(aPresContext);
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int32_t orientation;
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if (size.width > size.height) {
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orientation = NS_STYLE_ORIENTATION_LANDSCAPE;
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} else {
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// Per spec, square viewports should be 'portrait'
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orientation = NS_STYLE_ORIENTATION_PORTRAIT;
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}
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aResult.SetIntValue(orientation, eCSSUnit_Enumerated);
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return NS_OK;
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}
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static nsresult
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GetDeviceOrientation(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsSize size = GetDeviceSize(aPresContext);
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int32_t orientation;
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if (size.width > size.height) {
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orientation = NS_STYLE_ORIENTATION_LANDSCAPE;
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} else {
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// Per spec, square viewports should be 'portrait'
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orientation = NS_STYLE_ORIENTATION_PORTRAIT;
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}
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aResult.SetIntValue(orientation, eCSSUnit_Enumerated);
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return NS_OK;
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}
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static nsresult
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GetIsResourceDocument(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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nsIDocument* doc = aPresContext->Document();
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aResult.SetIntValue(doc && doc->IsResourceDoc() ? 1 : 0, eCSSUnit_Integer);
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return NS_OK;
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}
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// Helper for two features below
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static nsresult
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MakeArray(const nsSize& aSize, nsCSSValue& aResult)
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{
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RefPtr<nsCSSValue::Array> a = nsCSSValue::Array::Create(2);
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a->Item(0).SetIntValue(aSize.width, eCSSUnit_Integer);
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a->Item(1).SetIntValue(aSize.height, eCSSUnit_Integer);
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aResult.SetArrayValue(a, eCSSUnit_Array);
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return NS_OK;
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}
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static nsresult
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GetAspectRatio(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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return MakeArray(GetSize(aPresContext), aResult);
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}
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static nsresult
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GetDeviceAspectRatio(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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return MakeArray(GetDeviceSize(aPresContext), aResult);
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}
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static nsresult
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GetColor(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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uint32_t depth = 24; // Use depth of 24 when resisting fingerprinting.
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if (!ShouldResistFingerprinting(aPresContext)) {
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// FIXME: This implementation is bogus. nsDeviceContext
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// doesn't provide reliable information (should be fixed in bug
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// 424386).
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// FIXME: On a monochrome device, return 0!
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nsDeviceContext *dx = GetDeviceContextFor(aPresContext);
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dx->GetDepth(depth);
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}
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// The spec says to use bits *per color component*, so divide by 3,
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// and round down, since the spec says to use the smallest when the
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// color components differ.
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depth /= 3;
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aResult.SetIntValue(int32_t(depth), eCSSUnit_Integer);
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return NS_OK;
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}
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static nsresult
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GetColorIndex(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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// We should return zero if the device does not use a color lookup
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// table. Stuart says that our handling of displays with 8-bit
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// color is bad enough that we never change the lookup table to
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// match what we're trying to display, so perhaps we should always
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// return zero. Given that there isn't any better information
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// exposed, we don't have much other choice.
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aResult.SetIntValue(0, eCSSUnit_Integer);
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return NS_OK;
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}
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static nsresult
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GetMonochrome(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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// For color devices we should return 0.
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// FIXME: On a monochrome device, return the actual color depth, not
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// 0!
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aResult.SetIntValue(0, eCSSUnit_Integer);
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return NS_OK;
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}
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static nsresult
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GetResolution(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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float dpi = 96; // Use 96 when resisting fingerprinting.
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if (!ShouldResistFingerprinting(aPresContext)) {
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// Resolution measures device pixels per CSS (inch/cm/pixel). We
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// return it in device pixels per CSS inches.
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dpi = float(nsPresContext::AppUnitsPerCSSInch()) /
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float(aPresContext->AppUnitsPerDevPixel());
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}
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aResult.SetFloatValue(dpi, eCSSUnit_Inch);
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return NS_OK;
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}
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static nsresult
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GetScan(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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// Since Gecko doesn't support the 'tv' media type, the 'scan'
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// feature is never present.
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aResult.Reset();
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return NS_OK;
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}
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static nsresult
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GetGrid(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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// Gecko doesn't support grid devices (e.g., ttys), so the 'grid'
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// feature is always 0.
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aResult.SetIntValue(0, eCSSUnit_Integer);
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return NS_OK;
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}
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static nsresult
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GetDevicePixelRatio(nsPresContext* aPresContext, const nsMediaFeature*,
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nsCSSValue& aResult)
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{
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if (!ShouldResistFingerprinting(aPresContext)) {
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float ratio = aPresContext->CSSPixelsToDevPixels(1.0f);
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aResult.SetFloatValue(ratio, eCSSUnit_Number);
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} else {
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aResult.SetFloatValue(1.0, eCSSUnit_Number);
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}
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return NS_OK;
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}
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static nsresult
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GetSystemMetric(nsPresContext* aPresContext, const nsMediaFeature* aFeature,
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nsCSSValue& aResult)
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{
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aResult.Reset();
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if (ShouldResistFingerprinting(aPresContext)) {
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// If "privacy.resistFingerprinting" is enabled, then we simply don't
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// return any system-backed media feature values. (No spoofed values returned.)
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return NS_OK;
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}
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MOZ_ASSERT(aFeature->mValueType == nsMediaFeature::eBoolInteger,
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"unexpected type");
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nsIAtom *metricAtom = *aFeature->mData.mMetric;
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bool hasMetric = nsCSSRuleProcessor::HasSystemMetric(metricAtom);
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aResult.SetIntValue(hasMetric ? 1 : 0, eCSSUnit_Integer);
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return NS_OK;
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}
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static nsresult
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GetWindowsTheme(nsPresContext* aPresContext, const nsMediaFeature* aFeature,
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nsCSSValue& aResult)
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{
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aResult.Reset();
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if (ShouldResistFingerprinting(aPresContext)) {
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return NS_OK;
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}
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#ifdef XP_WIN
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uint8_t windowsThemeId =
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nsCSSRuleProcessor::GetWindowsThemeIdentifier();
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// Classic mode should fail to match.
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if (windowsThemeId == LookAndFeel::eWindowsTheme_Classic)
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return NS_OK;
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// Look up the appropriate theme string
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for (size_t i = 0; i < ArrayLength(themeStrings); ++i) {
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if (windowsThemeId == themeStrings[i].id) {
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aResult.SetStringValue(nsDependentString(themeStrings[i].name),
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eCSSUnit_Ident);
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break;
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}
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}
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#endif
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return NS_OK;
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}
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static nsresult
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GetOperatingSystemVersion(nsPresContext* aPresContext, const nsMediaFeature* aFeature,
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nsCSSValue& aResult)
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{
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aResult.Reset();
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if (ShouldResistFingerprinting(aPresContext)) {
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return NS_OK;
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}
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#ifdef XP_WIN
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int32_t metricResult;
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if (NS_SUCCEEDED(
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LookAndFeel::GetInt(LookAndFeel::eIntID_OperatingSystemVersionIdentifier,
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&metricResult))) {
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for (size_t i = 0; i < ArrayLength(osVersionStrings); ++i) {
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if (metricResult == osVersionStrings[i].id) {
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aResult.SetStringValue(nsDependentString(osVersionStrings[i].name),
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eCSSUnit_Ident);
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break;
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}
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}
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}
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#endif
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return NS_OK;
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}
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static nsresult
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GetIsGlyph(nsPresContext* aPresContext, const nsMediaFeature* aFeature,
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nsCSSValue& aResult)
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{
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aResult.SetIntValue(aPresContext->IsGlyph() ? 1 : 0, eCSSUnit_Integer);
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return NS_OK;
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}
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/*
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* Adding new media features requires (1) adding the new feature to this
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* array, with appropriate entries (and potentially any new code needed
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* to support new types in these entries and (2) ensuring that either
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* nsPresContext::MediaFeatureValuesChanged or
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* nsPresContext::PostMediaFeatureValuesChangedEvent is called when the
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* value that would be returned by the entry's mGetter changes.
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*/
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/* static */ const nsMediaFeature
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nsMediaFeatures::features[] = {
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{
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&nsGkAtoms::width,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eLength,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetWidth
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},
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{
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&nsGkAtoms::height,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eLength,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetHeight
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},
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{
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&nsGkAtoms::deviceWidth,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eLength,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetDeviceWidth
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},
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{
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&nsGkAtoms::deviceHeight,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eLength,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetDeviceHeight
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},
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{
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&nsGkAtoms::orientation,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eEnumerated,
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nsMediaFeature::eNoRequirements,
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{ kOrientationKeywords },
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GetOrientation
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},
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{
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&nsGkAtoms::aspectRatio,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eIntRatio,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetAspectRatio
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},
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{
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&nsGkAtoms::deviceAspectRatio,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eIntRatio,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetDeviceAspectRatio
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},
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{
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&nsGkAtoms::color,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eInteger,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetColor
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},
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{
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&nsGkAtoms::colorIndex,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eInteger,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetColorIndex
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},
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{
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&nsGkAtoms::monochrome,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eInteger,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetMonochrome
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},
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{
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&nsGkAtoms::resolution,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eResolution,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetResolution
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},
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{
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&nsGkAtoms::scan,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eEnumerated,
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nsMediaFeature::eNoRequirements,
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{ kScanKeywords },
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GetScan
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},
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{
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&nsGkAtoms::grid,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetGrid
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},
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// Webkit extensions that we support for de-facto web compatibility
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// -webkit-{min|max}-device-pixel-ratio:
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{
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&nsGkAtoms::devicePixelRatio,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eFloat,
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nsMediaFeature::eHasWebkitPrefix,
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{ nullptr },
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GetDevicePixelRatio
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},
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// Mozilla extensions
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{
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&nsGkAtoms::_moz_device_pixel_ratio,
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nsMediaFeature::eMinMaxAllowed,
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nsMediaFeature::eFloat,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetDevicePixelRatio
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},
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{
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&nsGkAtoms::_moz_device_orientation,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eEnumerated,
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nsMediaFeature::eNoRequirements,
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{ kOrientationKeywords },
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GetDeviceOrientation
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},
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{
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&nsGkAtoms::_moz_is_resource_document,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetIsResourceDocument
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},
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{
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&nsGkAtoms::_moz_color_picker_available,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::color_picker_available },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_scrollbar_start_backward,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::scrollbar_start_backward },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_scrollbar_start_forward,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::scrollbar_start_forward },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_scrollbar_end_backward,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::scrollbar_end_backward },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_scrollbar_end_forward,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::scrollbar_end_forward },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_scrollbar_thumb_proportional,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::scrollbar_thumb_proportional },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_images_in_menus,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::images_in_menus },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_images_in_buttons,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::images_in_buttons },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_overlay_scrollbars,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::overlay_scrollbars },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_windows_default_theme,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::windows_default_theme },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_mac_graphite_theme,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::mac_graphite_theme },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_mac_lion_theme,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::mac_lion_theme },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_mac_yosemite_theme,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::mac_yosemite_theme },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_windows_compositor,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::windows_compositor },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_windows_classic,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::windows_classic },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_windows_glass,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::windows_glass },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_touch_enabled,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::touch_enabled },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_menubar_drag,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::menubar_drag },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_windows_theme,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eIdent,
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetWindowsTheme
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},
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{
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&nsGkAtoms::_moz_os_version,
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nsMediaFeature::eMinMaxNotAllowed,
|
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nsMediaFeature::eIdent,
|
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nsMediaFeature::eNoRequirements,
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{ nullptr },
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GetOperatingSystemVersion
|
|
},
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{
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&nsGkAtoms::_moz_swipe_animation_enabled,
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nsMediaFeature::eMinMaxNotAllowed,
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nsMediaFeature::eBoolInteger,
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nsMediaFeature::eNoRequirements,
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{ &nsGkAtoms::swipe_animation_enabled },
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GetSystemMetric
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},
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{
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&nsGkAtoms::_moz_physical_home_button,
|
|
nsMediaFeature::eMinMaxNotAllowed,
|
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nsMediaFeature::eBoolInteger,
|
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nsMediaFeature::eNoRequirements,
|
|
{ &nsGkAtoms::physical_home_button },
|
|
GetSystemMetric
|
|
},
|
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// Internal -moz-is-glyph media feature: applies only inside SVG glyphs.
|
|
// Internal because it is really only useful in the user agent anyway
|
|
// and therefore not worth standardizing.
|
|
{
|
|
&nsGkAtoms::_moz_is_glyph,
|
|
nsMediaFeature::eMinMaxNotAllowed,
|
|
nsMediaFeature::eBoolInteger,
|
|
nsMediaFeature::eNoRequirements,
|
|
{ nullptr },
|
|
GetIsGlyph
|
|
},
|
|
// Null-mName terminator:
|
|
{
|
|
nullptr,
|
|
nsMediaFeature::eMinMaxAllowed,
|
|
nsMediaFeature::eInteger,
|
|
nsMediaFeature::eNoRequirements,
|
|
{ nullptr },
|
|
nullptr
|
|
},
|
|
};
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