Bug 1845636 - Allow browser chrome to enable the non-native theme. r=dshin

I tried to reftest this, but actually the non-native-theme is already
enabled on all reftests, so...

Differential Revision: https://phabricator.services.mozilla.com/D184740

devtools/server/actors/animation-type-longhand.js

@@ -226,6 +226,7 @@ exports.ANIMATION_TYPE_FOR_LONGHANDS = [
       "-moz-context-properties",
       "-moz-control-character-visibility",
       "-moz-default-appearance",
+      "-moz-theme",
       "display",
       "font-optical-sizing",
       "inline-size",

layout/reftests/native-theme/reftest.list

@@ -28,7 +28,6 @@ needs-focus == listbox-nonnative-when-styled.html listbox-nonnative-when-styled-
 != 427122-1.html 427122-1-ref.html
 
 == chrome://reftest/content/native-theme/470711-1.xhtml chrome://reftest/content/native-theme/470711-1-ref.xhtml
-
 == chrome://reftest/content/native-theme/482955-1.xhtml chrome://reftest/content/native-theme/482955-1-ref.xhtml
 
 == 492155-1.html about:blank

layout/style/ServoBindings.toml

@@ -446,6 +446,7 @@ cbindgen-types = [
     { gecko = "StyleOffsetPathFunction", servo = "crate::values::computed::motion::OffsetPathFunction" },
     { gecko = "StyleGenericOffsetPath", servo = "crate::values::generics::motion::OffsetPath" },
     { gecko = "StyleGenericOffsetPathFunction", servo = "crate::values::generics::motion::OffsetPathFunction" },
+    { gecko = "StyleMozTheme", servo = "crate::values::computed::ui::MozTheme" },
     { gecko = "StyleOffsetPosition", servo = "crate::values::computed::motion::OffsetPosition" },
     { gecko = "StyleOffsetRotate", servo = "crate::values::computed::motion::OffsetRotate" },
     { gecko = "StylePathCommand", servo = "crate::values::specified::svg_path::PathCommand" },

layout/style/nsStyleStruct.cpp

@@ -3059,6 +3059,7 @@ LogicalSide nsStyleText::TextEmphasisSide(WritingMode aWM) const {
 
 nsStyleUI::nsStyleUI()
     : mInert(StyleInert::None),
+      mMozTheme(StyleMozTheme::Auto),
       mUserInput(StyleUserInput::Auto),
       mUserModify(StyleUserModify::ReadOnly),
       mUserFocus(StyleUserFocus::None),
@@ -3073,6 +3074,7 @@ nsStyleUI::nsStyleUI()
 
 nsStyleUI::nsStyleUI(const nsStyleUI& aSource)
     : mInert(aSource.mInert),
+      mMozTheme(aSource.mMozTheme),
       mUserInput(aSource.mUserInput),
       mUserModify(aSource.mUserModify),
       mUserFocus(aSource.mUserFocus),
@@ -3138,6 +3140,7 @@ nsChangeHint nsStyleUI::CalcDifference(const nsStyleUI& aNewData) const {
   if (mCaretColor != aNewData.mCaretColor ||
       mAccentColor != aNewData.mAccentColor ||
       mScrollbarColor != aNewData.mScrollbarColor ||
+      mMozTheme != aNewData.mMozTheme ||
       mColorScheme != aNewData.mColorScheme) {
     hint |= nsChangeHint_RepaintFrame;
   }

layout/style/nsStyleStruct.h

@@ -1756,6 +1756,7 @@ struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleUI {
   void TriggerImageLoads(mozilla::dom::Document&, const nsStyleUI*);
 
   mozilla::StyleInert mInert;
+  mozilla::StyleMozTheme mMozTheme;
 
  private:
   mozilla::StyleUserInput mUserInput;

layout/style/test/ListCSSProperties.cpp

@@ -94,6 +94,7 @@ const char* gInaccessibleProperties[] = {
     "-x-span",
     "-x-text-scale",
     "-moz-default-appearance",
+    "-moz-theme",
     "-moz-inert",
     "-moz-script-level",  // parsed by UA sheets only
     "-moz-math-variant",

servo/components/style/properties/data.py

@@ -482,6 +482,7 @@ class Longhand(Property):
                 "LineBreak",
                 "LineClamp",
                 "MasonryAutoFlow",
+                "ui::MozTheme",
                 "BoolInteger",
                 "text::MozControlCharacterVisibility",
                 "MathDepth",

servo/components/style/properties/longhands/inherited_ui.mako.rs

@@ -111,3 +111,13 @@ ${helpers.predefined_type(
     boxed=True,
     ignored_when_colors_disabled=True,
 )}
+
+${helpers.predefined_type(
+    "-moz-theme",
+    "ui::MozTheme",
+    "specified::ui::MozTheme::Auto",
+    engines="gecko",
+    enabled_in="chrome",
+    animation_value_type="discrete",
+    spec="Internal",
+)}

servo/components/style/values/computed/ui.rs

@@ -9,8 +9,7 @@ use crate::values::computed::image::Image;
 use crate::values::computed::Number;
 use crate::values::generics::ui as generics;
 
-pub use crate::values::specified::ui::CursorKind;
-pub use crate::values::specified::ui::{BoolInteger, UserSelect};
+pub use crate::values::specified::ui::{CursorKind, BoolInteger, UserSelect, MozTheme};
 
 /// A computed value for the `cursor` property.
 pub type Cursor = generics::GenericCursor<CursorImage>;

servo/components/style/values/specified/ui.rs

@@ -230,3 +230,28 @@ pub enum CursorKind {
     ZoomOut,
     Auto,
 }
+
+/// The keywords allowed in the -moz-theme property.
+#[allow(missing_docs)]
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    Eq,
+    FromPrimitive,
+    MallocSizeOf,
+    Parse,
+    PartialEq,
+    SpecifiedValueInfo,
+    ToComputedValue,
+    ToCss,
+    ToResolvedValue,
+    ToShmem,
+)]
+#[repr(u8)]
+pub enum MozTheme {
+    /// Choose the default (maybe native) rendering.
+    Auto,
+    /// Choose the non-native rendering.
+    NonNative,
+}

servo/ports/geckolib/cbindgen.toml

@@ -112,6 +112,7 @@ include = [
   "GenericFontFamily",
   "FontFamily",
   "FontFamilyNameSyntax",
+  "MozTheme",
   "OverflowWrap",
   "OffsetPath",
   "OffsetPathFunction",

widget/cocoa/nsNativeThemeCocoa.mm

@@ -2479,18 +2479,13 @@ Maybe<nsNativeThemeCocoa::WidgetInfo> nsNativeThemeCocoa::ComputeWidgetInfo(
   NS_OBJC_END_TRY_BLOCK_RETURN(Nothing());
 }
 
-static bool IsWidgetNonNative(StyleAppearance aAppearance) {
-  return nsNativeTheme::IsWidgetScrollbarPart(aAppearance) ||
-         aAppearance == StyleAppearance::FocusOutline;
-}
-
 NS_IMETHODIMP
 nsNativeThemeCocoa::DrawWidgetBackground(gfxContext* aContext, nsIFrame* aFrame,
                                          StyleAppearance aAppearance, const nsRect& aRect,
                                          const nsRect& aDirtyRect, DrawOverflow aDrawOverflow) {
   NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
 
-  if (IsWidgetNonNative(aAppearance)) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return ThemeCocoa::DrawWidgetBackground(aContext, aFrame, aAppearance, aRect, aDirtyRect,
                                             aDrawOverflow);
   }
@@ -2718,7 +2713,7 @@ bool nsNativeThemeCocoa::CreateWebRenderCommandsForWidget(
     const mozilla::layers::StackingContextHelper& aSc,
     mozilla::layers::RenderRootStateManager* aManager, nsIFrame* aFrame,
     StyleAppearance aAppearance, const nsRect& aRect) {
-  if (IsWidgetNonNative(aAppearance)) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return ThemeCocoa::CreateWebRenderCommandsForWidget(aBuilder, aResources, aSc, aManager, aFrame,
                                                         aAppearance, aRect);
   }
@@ -2916,7 +2911,7 @@ bool nsNativeThemeCocoa::GetWidgetPadding(nsDeviceContext* aContext, nsIFrame* a
 
 bool nsNativeThemeCocoa::GetWidgetOverflow(nsDeviceContext* aContext, nsIFrame* aFrame,
                                            StyleAppearance aAppearance, nsRect* aOverflowRect) {
-  if (IsWidgetNonNative(aAppearance)) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return ThemeCocoa::GetWidgetOverflow(aContext, aFrame, aAppearance, aOverflowRect);
   }
   nsIntMargin overflow;
@@ -2977,7 +2972,7 @@ LayoutDeviceIntSize nsNativeThemeCocoa::GetMinimumWidgetSize(nsPresContext* aPre
                                                              StyleAppearance aAppearance) {
   NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
 
-  if (IsWidgetNonNative(aAppearance)) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return ThemeCocoa::GetMinimumWidgetSize(aPresContext, aFrame, aAppearance);
   }
 
@@ -3176,7 +3171,7 @@ nsNativeThemeCocoa::ThemeChanged() {
 
 bool nsNativeThemeCocoa::ThemeSupportsWidget(nsPresContext* aPresContext, nsIFrame* aFrame,
                                              StyleAppearance aAppearance) {
-  if (IsWidgetNonNative(aAppearance)) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return ThemeCocoa::ThemeSupportsWidget(aPresContext, aFrame, aAppearance);
   }
   // if this is a dropdown button in a combobox the answer is always no

widget/gtk/nsNativeThemeGTK.cpp

@@ -1053,8 +1053,7 @@ bool nsNativeThemeGTK::GetWidgetOverflow(nsDeviceContext* aContext,
 auto nsNativeThemeGTK::IsWidgetNonNative(nsIFrame* aFrame,
                                          StyleAppearance aAppearance)
     -> NonNative {
-  if (IsWidgetScrollbarPart(aAppearance) ||
-      aAppearance == StyleAppearance::FocusOutline) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return NonNative::Always;
   }
 
@@ -1091,7 +1090,7 @@ auto nsNativeThemeGTK::IsWidgetNonNative(nsIFrame* aFrame,
 LayoutDeviceIntSize nsNativeThemeGTK::GetMinimumWidgetSize(
     nsPresContext* aPresContext, nsIFrame* aFrame,
     StyleAppearance aAppearance) {
-  if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return Theme::GetMinimumWidgetSize(aPresContext, aFrame, aAppearance);
   }
 
@@ -1316,7 +1315,7 @@ nsNativeThemeGTK::ThemeSupportsWidget(nsPresContext* aPresContext,
     return false;
   }
 
-  if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return Theme::ThemeSupportsWidget(aPresContext, aFrame, aAppearance);
   }
 

widget/nsNativeTheme.cpp

@@ -573,3 +573,11 @@ bool nsNativeTheme::IsWidgetScrollbarPart(StyleAppearance aAppearance) {
       return false;
   }
 }
+
+/*static*/
+bool nsNativeTheme::IsWidgetAlwaysNonNative(nsIFrame* aFrame,
+                                            StyleAppearance aAppearance) {
+  return IsWidgetScrollbarPart(aAppearance) ||
+         aAppearance == StyleAppearance::FocusOutline ||
+         (aFrame && aFrame->StyleUI()->mMozTheme == StyleMozTheme::NonNative);
+}

widget/nsNativeTheme.h

@@ -159,6 +159,7 @@ class nsNativeTheme : public nsITimerCallback, public nsINamed {
   static bool IsDarkBackground(nsIFrame*);
 
   static bool IsWidgetScrollbarPart(mozilla::StyleAppearance);
+  static bool IsWidgetAlwaysNonNative(nsIFrame*, mozilla::StyleAppearance);
 
  private:
   uint32_t mAnimatedContentTimeout;

widget/windows/nsNativeThemeWin.cpp

@@ -67,8 +67,7 @@ nsNativeThemeWin::~nsNativeThemeWin() { nsUXThemeData::Invalidate(); }
 auto nsNativeThemeWin::IsWidgetNonNative(nsIFrame* aFrame,
                                          StyleAppearance aAppearance)
     -> NonNative {
-  if (IsWidgetScrollbarPart(aAppearance) ||
-      aAppearance == StyleAppearance::FocusOutline) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return NonNative::Always;
   }
 
@@ -1397,7 +1396,7 @@ bool nsNativeThemeWin::GetWidgetOverflow(nsDeviceContext* aContext,
 LayoutDeviceIntSize nsNativeThemeWin::GetMinimumWidgetSize(
     nsPresContext* aPresContext, nsIFrame* aFrame,
     StyleAppearance aAppearance) {
-  if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return Theme::GetMinimumWidgetSize(aPresContext, aFrame, aAppearance);
   }
 
@@ -1551,7 +1550,7 @@ bool nsNativeThemeWin::ThemeSupportsWidget(nsPresContext* aPresContext,
   // XXXdwh We can go even further and call the API to ask if support exists for
   // specific widgets.
 
-  if (IsWidgetNonNative(aFrame, aAppearance) == NonNative::Always) {
+  if (IsWidgetAlwaysNonNative(aFrame, aAppearance)) {
     return Theme::ThemeSupportsWidget(aPresContext, aFrame, aAppearance);
   }