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[tor-commits] [tor-browser] branch tor-browser-102.4.0esr-12.0-1 updated: fixup! Bug 41116: Normalize system fonts.



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pierov pushed a commit to branch tor-browser-102.4.0esr-12.0-1
in repository tor-browser.

The following commit(s) were added to refs/heads/tor-browser-102.4.0esr-12.0-1 by this push:
     new 0f57b5ae0941 fixup! Bug 41116: Normalize system fonts.
0f57b5ae0941 is described below

commit 0f57b5ae09419f5238ba4ba36a5a2009a13de349
Author: Pier Angelo Vendrame <pierov@xxxxxxxxxxxxxx>
AuthorDate: Wed Oct 12 19:30:55 2022 +0200

    fixup! Bug 41116: Normalize system fonts.
    
    Bug 41356: Try to check the context for RFP
---
 gfx/thebes/gfxPlatformFontList.cpp | 3 ++-
 layout/base/nsLayoutUtils.cpp      | 5 ++++-
 widget/LookAndFeel.h               | 4 +++-
 widget/gtk/nsNativeThemeGTK.cpp    | 8 ++++++--
 widget/nsXPLookAndFeel.cpp         | 9 +++++----
 widget/nsXPLookAndFeel.h           | 3 ++-
 6 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/gfx/thebes/gfxPlatformFontList.cpp b/gfx/thebes/gfxPlatformFontList.cpp
index 37a095868031..1e03ca76b0fa 100644
--- a/gfx/thebes/gfxPlatformFontList.cpp
+++ b/gfx/thebes/gfxPlatformFontList.cpp
@@ -1901,7 +1901,8 @@ static void GetSystemUIFontFamilies([[maybe_unused]] nsAtom* aLangGroup,
   nsFont systemFont;
   gfxFontStyle fontStyle;
   nsAutoString systemFontName;
-  if (!LookAndFeel::GetFont(StyleSystemFont::Menu, systemFontName, fontStyle)) {
+  if (!LookAndFeel::GetFont(StyleSystemFont::Menu, systemFontName, fontStyle,
+                            nsContentUtils::ShouldResistFingerprinting())) {
     return;
   }
   systemFontName.Trim("\"'");
diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp
index 4cae8e948de7..f2d023b0653d 100644
--- a/layout/base/nsLayoutUtils.cpp
+++ b/layout/base/nsLayoutUtils.cpp
@@ -9564,7 +9564,10 @@ void nsLayoutUtils::ComputeSystemFont(nsFont* aSystemFont,
                                       const Document* aDocument) {
   gfxFontStyle fontStyle;
   nsAutoString systemFontName;
-  if (!LookAndFeel::GetFont(aFontID, systemFontName, fontStyle)) {
+  const bool rfp = aDocument
+                       ? nsContentUtils::ShouldResistFingerprinting(aDocument)
+                       : nsContentUtils::ShouldResistFingerprinting();
+  if (!LookAndFeel::GetFont(aFontID, systemFontName, fontStyle, rfp)) {
     return;
   }
   systemFontName.Trim("\"'");
diff --git a/widget/LookAndFeel.h b/widget/LookAndFeel.h
index 9fe38d632919..c62948673ad1 100644
--- a/widget/LookAndFeel.h
+++ b/widget/LookAndFeel.h
@@ -486,8 +486,10 @@ class LookAndFeel {
    * @param aID    Which system-theme font is wanted.
    * @param aName  The name of the font to use.
    * @param aStyle Styling to apply to the font.
+   * @param aRFP   Whether RFP is enabled in the caller's context
    */
-  static bool GetFont(FontID aID, nsString& aName, gfxFontStyle& aStyle);
+  static bool GetFont(FontID aID, nsString& aName, gfxFontStyle& aStyle,
+                      bool aRFP);
 
   /**
    * GetPasswordCharacter() returns a unicode character which should be used
diff --git a/widget/gtk/nsNativeThemeGTK.cpp b/widget/gtk/nsNativeThemeGTK.cpp
index 9072e95dcf05..304e7e44d25f 100644
--- a/widget/gtk/nsNativeThemeGTK.cpp
+++ b/widget/gtk/nsNativeThemeGTK.cpp
@@ -1369,11 +1369,15 @@ nsNativeThemeGTK::GetMinimumWidgetSize(nsPresContext* aPresContext,
       // smaller than the default one. This prevents <input type=text
       // style="font-size: .5em"> from keeping a ridiculously large size, for
       // example.
-      const gfxFloat fieldFontSizeInCSSPixels = [] {
+      const gfxFloat fieldFontSizeInCSSPixels = [aPresContext] {
+        const bool rfp = (aPresContext && aPresContext->Document())
+                             ? nsContentUtils::ShouldResistFingerprinting(
+                                   aPresContext->Document())
+                             : nsContentUtils::ShouldResistFingerprinting();
         gfxFontStyle fieldFontStyle;
         nsAutoString unusedFontName;
         DebugOnly<bool> result = LookAndFeel::GetFont(
-            LookAndFeel::FontID::MozField, unusedFontName, fieldFontStyle);
+            LookAndFeel::FontID::MozField, unusedFontName, fieldFontStyle, rfp);
         MOZ_ASSERT(result, "GTK look and feel supports the field font");
         // NOTE: GetFont returns font sizes in CSS pixels, and we want just
         // that.
diff --git a/widget/nsXPLookAndFeel.cpp b/widget/nsXPLookAndFeel.cpp
index 8791038a2a3f..51901844ba62 100644
--- a/widget/nsXPLookAndFeel.cpp
+++ b/widget/nsXPLookAndFeel.cpp
@@ -999,8 +999,8 @@ widget::LookAndFeelFont nsXPLookAndFeel::StyleToLookAndFeelFont(
 }
 
 bool nsXPLookAndFeel::GetFontValue(FontID aID, nsString& aName,
-                                   gfxFontStyle& aStyle) {
-  if (nsContentUtils::ShouldResistFingerprinting()) {
+                                   gfxFontStyle& aStyle, bool aRFP) {
+  if (aRFP) {
 #ifdef XP_MACOSX
     aName = u"-apple-system"_ns;
 #else
@@ -1361,8 +1361,9 @@ nsresult LookAndFeel::GetFloat(FloatID aID, float* aResult) {
 }
 
 // static
-bool LookAndFeel::GetFont(FontID aID, nsString& aName, gfxFontStyle& aStyle) {
-  return nsLookAndFeel::GetInstance()->GetFontValue(aID, aName, aStyle);
+bool LookAndFeel::GetFont(FontID aID, nsString& aName, gfxFontStyle& aStyle,
+                          bool aRFP) {
+  return nsLookAndFeel::GetInstance()->GetFontValue(aID, aName, aStyle, aRFP);
 }
 
 // static
diff --git a/widget/nsXPLookAndFeel.h b/widget/nsXPLookAndFeel.h
index 3218c9c7bd02..35421e0e4fb4 100644
--- a/widget/nsXPLookAndFeel.h
+++ b/widget/nsXPLookAndFeel.h
@@ -40,7 +40,8 @@ class nsXPLookAndFeel : public mozilla::LookAndFeel {
   nsresult GetFloatValue(FloatID aID, float& aResult);
   // Same, but returns false if there is no platform-specific value.
   // (There are no override prefs for font values.)
-  bool GetFontValue(FontID aID, nsString& aName, gfxFontStyle& aStyle);
+  bool GetFontValue(FontID aID, nsString& aName, gfxFontStyle& aStyle,
+                    bool aRFP);
 
   virtual nsresult NativeGetInt(IntID aID, int32_t& aResult) = 0;
   virtual nsresult NativeGetFloat(FloatID aID, float& aResult) = 0;

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