From dadef50bdc3c6b546aad9e3231943e41ad3ccb97 Mon Sep 17 00:00:00 2001
From: Moonchild <moonchild@palemoon.org>
Date: Sat, 3 Oct 2020 14:52:47 +0000
Subject: Issue #1666 - Implement overflow-wrap: anywhere
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

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
---
 layout/style/nsCSSKeywordList.h | 1 +
 layout/style/nsCSSProps.cpp     | 1 +
 layout/style/nsStyleConsts.h    | 1 +
 layout/style/nsStyleStruct.h    | 7 +++++--
 4 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'layout/style')

diff --git a/layout/style/nsCSSKeywordList.h b/layout/style/nsCSSKeywordList.h
index 9045da9ff..86ba59142 100644
--- a/layout/style/nsCSSKeywordList.h
+++ b/layout/style/nsCSSKeywordList.h
@@ -144,6 +144,7 @@ CSS_KEY(alternate, alternate)
 CSS_KEY(alternate-reverse, alternate_reverse)
 CSS_KEY(always, always)
 CSS_KEY(annotation, annotation)
+CSS_KEY(anywhere, anywhere)
 CSS_KEY(appworkspace, appworkspace)
 CSS_KEY(auto, auto)
 CSS_KEY(auto-fill, auto_fill)
diff --git a/layout/style/nsCSSProps.cpp b/layout/style/nsCSSProps.cpp
index 24c97cf33..e0cda2488 100644
--- a/layout/style/nsCSSProps.cpp
+++ b/layout/style/nsCSSProps.cpp
@@ -2284,6 +2284,7 @@ const KTableEntry nsCSSProps::kWordBreakKTable[] = {
 const KTableEntry nsCSSProps::kOverflowWrapKTable[] = {
   { eCSSKeyword_normal, NS_STYLE_OVERFLOWWRAP_NORMAL },
   { eCSSKeyword_break_word, NS_STYLE_OVERFLOWWRAP_BREAK_WORD },
+  { eCSSKeyword_anywhere, NS_STYLE_OVERFLOWWRAP_ANYWHERE },
   { eCSSKeyword_UNKNOWN, -1 }
 };
 
diff --git a/layout/style/nsStyleConsts.h b/layout/style/nsStyleConsts.h
index f54387aa8..e6a0cc65a 100644
--- a/layout/style/nsStyleConsts.h
+++ b/layout/style/nsStyleConsts.h
@@ -997,6 +997,7 @@ enum class StyleDisplay : uint8_t {
 // See nsStyleText
 #define NS_STYLE_OVERFLOWWRAP_NORMAL            0
 #define NS_STYLE_OVERFLOWWRAP_BREAK_WORD        1
+#define NS_STYLE_OVERFLOWWRAP_ANYWHERE          2
 
 // See nsStyleText
 #define NS_STYLE_HYPHENS_NONE                   0
diff --git a/layout/style/nsStyleStruct.h b/layout/style/nsStyleStruct.h
index 0fec27d21..e4d02a24a 100644
--- a/layout/style/nsStyleStruct.h
+++ b/layout/style/nsStyleStruct.h
@@ -2133,8 +2133,11 @@ struct MOZ_NEEDS_MEMMOVABLE_MEMBERS nsStyleText
   }
 
   bool WordCanWrapStyle() const {
-    return WhiteSpaceCanWrapStyle() &&
-           mOverflowWrap == NS_STYLE_OVERFLOWWRAP_BREAK_WORD;
+    if (!WhiteSpaceCanWrapStyle()) {
+      return false;
+    }
+    return (mOverflowWrap == NS_STYLE_OVERFLOWWRAP_BREAK_WORD ||
+            mOverflowWrap == NS_STYLE_OVERFLOWWRAP_ANYWHERE);
   }
 
   bool HasTextEmphasis() const {
-- 
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