Bug 1589778 - Ensure cluster boundaries are set up even in blank text…

…runs. r=emilio Differential Revision: https://phabricator.services.mozilla.com/D175960
iaxat · Apr 20, 2023 · f5be0a3 · f5be0a3
1 parent 0e803ce
commit f5be0a3
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/gfx/thebes/gfxTextRun.cpp b/gfx/thebes/gfxTextRun.cpp
@@ -2420,6 +2420,8 @@ already_AddRefed<gfxTextRun> gfxFontGroup::MakeBlankTextRun(
   textRun->AddGlyphRun(font, FontMatchType::Kind::kUnspecified, 0, false,
                        orientation, false);
 
+  textRun->SetupClusterBoundaries(0, aString, aLength);
+
   for (uint32_t i = 0; i < aLength; i++) {
     if (aString[i] == '\n') {
       textRun->SetIsNewline(i);