[selectors4] Implement :focus-within pseudo-class

third_party/WebKit/Source/core/inspector/InspectorCSSAgent.cpp

 /*
  * Copyright (C) 2010, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 298 matching lines @@
 static const char kRuleRecordingEnabled[] = "ruleRecordingEnabled";
 }
 
 typedef blink::protocol::CSS::Backend::EnableCallback EnableCallback;
 
 enum ForcePseudoClassFlags {
   kPseudoNone = 0,
   kPseudoHover = 1 << 0,
   kPseudoFocus = 1 << 1,
   kPseudoActive = 1 << 2,
-  kPseudoVisited = 1 << 3
+  kPseudoVisited = 1 << 3,
+  kPseudoFocusWithin = 1 << 4
 };
 
 static unsigned ComputePseudoClassMask(
     std::unique_ptr<protocol::Array<String>> pseudo_class_array) {
   DEFINE_STATIC_LOCAL(String, active, ("active"));
   DEFINE_STATIC_LOCAL(String, hover, ("hover"));
   DEFINE_STATIC_LOCAL(String, focus, ("focus"));
+  DEFINE_STATIC_LOCAL(String, focusWithin, ("focus-within"));
   DEFINE_STATIC_LOCAL(String, visited, ("visited"));
   if (!pseudo_class_array || !pseudo_class_array->length())
     return kPseudoNone;
 
   unsigned result = kPseudoNone;
   for (size_t i = 0; i < pseudo_class_array->length(); ++i) {
     String pseudo_class = pseudo_class_array->get(i);
     if (pseudo_class == active)
       result |= kPseudoActive;
     else if (pseudo_class == hover)
       result |= kPseudoHover;
     else if (pseudo_class == focus)
       result |= kPseudoFocus;
+    else if (pseudo_class == focusWithin)
+      result |= kPseudoFocusWithin;
     else if (pseudo_class == visited)
       result |= kPseudoVisited;
   }
 
   return result;
 }
 
 class InspectorCSSAgent::StyleSheetAction : public InspectorHistory::Action {
   WTF_MAKE_NONCOPYABLE(StyleSheetAction);
 
@@ skipping 508 matching lines @@
 
   bool force = false;
   unsigned forced_pseudo_state = it->value;
   switch (pseudo_type) {
     case CSSSelector::kPseudoActive:
       force = forced_pseudo_state & kPseudoActive;
       break;
     case CSSSelector::kPseudoFocus:
       force = forced_pseudo_state & kPseudoFocus;
       break;
+    case CSSSelector::kPseudoFocusWithin:
+      force = forced_pseudo_state & kPseudoFocusWithin;
+      break;
     case CSSSelector::kPseudoHover:
       force = forced_pseudo_state & kPseudoHover;
       break;
     case CSSSelector::kPseudoVisited:
       force = forced_pseudo_state & kPseudoVisited;
       break;
     default:
       break;
   }
   if (force)
@@ skipping 1649 matching lines @@
   visitor->Trace(css_style_sheet_to_inspector_style_sheet_);
   visitor->Trace(document_to_css_style_sheets_);
   visitor->Trace(invalidated_documents_);
   visitor->Trace(node_to_inspector_style_sheet_);
   visitor->Trace(inspector_user_agent_style_sheet_);
   visitor->Trace(tracker_);
   InspectorBaseAgent::Trace(visitor);
 }
 
 }  // namespace blink