android/ohos: fonts: Ignore ascii case when searching for font family (#32725)

The input for this function commonly comes from a `LowercaseString`,
while our actual font family name has cases.
Since font family lookup should be case-neutral, we do a compare
ignoring the ascii case.
I'm not too familiar with the CSS standard so I'm not 100% sure
if this is sufficient, or if we need to use a different method
to compare strings for arbitrary non-ascii font names.

Signed-off-by: Jonathan Schwender <jonathan.schwender@huawei.com>

2 files changed, 12 insertions, 4 deletions

diff --git a/components/fonts/platform/freetype/android/font_list.rs b/components/fonts/platform/freetype/android/font_list.rs
index 3343c7c3788..0fd0c336487 100644
--- a/components/fonts/platform/freetype/android/font_list.rs
+++ b/components/fonts/platform/freetype/android/font_list.rs
@@ -259,11 +259,15 @@ impl FontList {
     }
 
     fn find_family(&self, name: &str) -> Option<&FontFamily> {
-        self.families.iter().find(|f| f.name == name)
+        self.families
+            .iter()
+            .find(|family| family.name.eq_ignore_ascii_case(name))
     }
 
     fn find_alias(&self, name: &str) -> Option<&FontAlias> {
-        self.aliases.iter().find(|f| f.from == name)
+        self.aliases
+            .iter()
+            .find(|family| family.from.eq_ignore_ascii_case(name))
     }
 
     // Parse family and font file names
diff --git a/components/fonts/platform/freetype/ohos/font_list.rs b/components/fonts/platform/freetype/ohos/font_list.rs
index f4d9ec6200a..819535a618d 100644
--- a/components/fonts/platform/freetype/ohos/font_list.rs
+++ b/components/fonts/platform/freetype/ohos/font_list.rs
@@ -108,11 +108,15 @@ impl FontList {
     }
 
     fn find_family(&self, name: &str) -> Option<&FontFamily> {
-        self.families.iter().find(|f| f.name == name)
+        self.families
+            .iter()
+            .find(|family| family.name.eq_ignore_ascii_case(name))
     }
 
     fn find_alias(&self, name: &str) -> Option<&FontAlias> {
-        self.aliases.iter().find(|f| f.from == name)
+        self.aliases
+            .iter()
+            .find(|family| family.from.eq_ignore_ascii_case(name))
     }
 }