Files
cromite/build/patches/Disable-css-preferred-text-scale.patch

76 lines
3.6 KiB
Diff

From: uazo <uazo@users.noreply.github.com>
Date: Sat, 28 Jun 2025 08:16:28 +0000
Subject: Disable css preferred text scale
Do not expose the user's preferred font scale to CSS.
License: GPL-2.0-or-later - https://spdx.org/licenses/GPL-2.0-or-later.html
---
.../common/features_cc/Disable-CSSPreferredTextScale.inc | 1 +
.../renderer/core/css/document_style_environment_variables.cc | 1 +
.../blink/renderer/core/css/style_environment_variables.cc | 4 +++-
third_party/blink/renderer/core/page/page.cc | 4 +++-
.../blink/renderer/platform/runtime_enabled_features.json5 | 3 +++
5 files changed, 11 insertions(+), 2 deletions(-)
create mode 100644 cromite_flags/third_party/blink/common/features_cc/Disable-CSSPreferredTextScale.inc
diff --git a/cromite_flags/third_party/blink/common/features_cc/Disable-CSSPreferredTextScale.inc b/cromite_flags/third_party/blink/common/features_cc/Disable-CSSPreferredTextScale.inc
new file mode 100644
--- /dev/null
+++ b/cromite_flags/third_party/blink/common/features_cc/Disable-CSSPreferredTextScale.inc
@@ -0,0 +1 @@
+SET_CROMITE_FEATURE_DISABLED(kCSSPreferredTextScale);
diff --git a/third_party/blink/renderer/core/css/document_style_environment_variables.cc b/third_party/blink/renderer/core/css/document_style_environment_variables.cc
--- a/third_party/blink/renderer/core/css/document_style_environment_variables.cc
+++ b/third_party/blink/renderer/core/css/document_style_environment_variables.cc
@@ -95,6 +95,7 @@ void DocumentStyleEnvironmentVariables::RecordVariableUsage(
}
void DocumentStyleEnvironmentVariables::UpdatePreferredTextScaleFromDocument() {
+ if (!RuntimeEnabledFeatures::CSSPreferredTextScaleEnabled()) return;
double scale_factor;
Settings* settings = document_->GetSettings();
diff --git a/third_party/blink/renderer/core/css/style_environment_variables.cc b/third_party/blink/renderer/core/css/style_environment_variables.cc
--- a/third_party/blink/renderer/core/css/style_environment_variables.cc
+++ b/third_party/blink/renderer/core/css/style_environment_variables.cc
@@ -48,7 +48,9 @@ void SetDefaultEnvironmentVariables(StyleEnvironmentVariables* instance) {
instance->SetVariable(UADefinedVariable::kKeyboardInsetHeight,
kKeyboardInsetDefault);
- instance->SetVariable(UADefinedVariable::kPreferredTextScale, "1");
+ if (RuntimeEnabledFeatures::CSSPreferredTextScaleEnabled()) {
+ instance->SetVariable(UADefinedVariable::kPreferredTextScale, "1");
+ }
}
} // namespace.
diff --git a/third_party/blink/renderer/core/page/page.cc b/third_party/blink/renderer/core/page/page.cc
--- a/third_party/blink/renderer/core/page/page.cc
+++ b/third_party/blink/renderer/core/page/page.cc
@@ -1063,7 +1063,9 @@ void Page::SettingsChanged(ChangeType change_type) {
}
break;
case ChangeType::kFontScaleFactor:
-
+ if (!RuntimeEnabledFeatures::CSSPreferredTextScaleEnabled()) {
+ break;
+ }
for (Frame* frame = MainFrame(); frame;
frame = frame->Tree().TraverseNext()) {
LocalFrame* local_frame = DynamicTo<LocalFrame>(frame);
diff --git a/third_party/blink/renderer/platform/runtime_enabled_features.json5 b/third_party/blink/renderer/platform/runtime_enabled_features.json5
--- a/third_party/blink/renderer/platform/runtime_enabled_features.json5
+++ b/third_party/blink/renderer/platform/runtime_enabled_features.json5
@@ -1749,6 +1749,9 @@
name: "CSSPositionStickyStaticScrollPosition",
status: "test",
},
+ {
+ name: "CSSPreferredTextScale", status: "test", public: true
+ },
// https://drafts.csswg.org/css-values-5/#progress
// progress()
{
--