Issue #1666 - Implement overflow-wrap: anywhere

This aligns with the current spec regarding overflow-wrap: break-word and
overflow-wrap: anywhere in if it affects intrinsic sized due to considering
soft-wrap opportunities or not.
See CSS Text Module Level 3, Editor’s Draft, 1 October 2020, Section 5.5

1 files changed, 3 insertions, 2 deletions

diff --git a/layout/generic/nsTextFrame.cpp b/layout/generic/nsTextFrame.cpp
index 9cf152873..fcce7f3f6 100644
--- a/layout/generic/nsTextFrame.cpp
+++ b/layout/generic/nsTextFrame.cpp
@@ -8243,8 +8243,9 @@ nsTextFrame::AddInlineMinISizeForFlow(nsRenderingContext *aRenderingContext,
     return;
   }
 
-  // If overflow-wrap is break-word, we can wrap everywhere.
-  if (textStyle->WordCanWrap(this)) {
+  // If overflow-wrap is 'anywhere', we can wrap everywhere.
+  if (textStyle->mOverflowWrap == NS_STYLE_OVERFLOWWRAP_ANYWHERE &&
+      textStyle->WordCanWrap(this)) {
     aData->OptionallyBreak();
     aData->mCurrentLine +=
       textRun->GetMinAdvanceWidth(Range(start, flowEndInTextRun));