Propagate inert state to OOPIFs when a modal dialog is active

third_party/WebKit/Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
@@ skipping 554 matching lines @@
   return LayoutViewItem(ContentLayoutObject());
 }
 
 void LocalFrame::DidChangeVisibilityState() {
   if (GetDocument())
     GetDocument()->DidChangeVisibilityState();
 
   Frame::DidChangeVisibilityState();
 }
 
+void LocalFrame::SetIsInert(bool inert) {
+  is_inert_ = inert;
+  PropagateInertToChildFrames();
+}
+
+void LocalFrame::PropagateInertToChildFrames() {
+  for (Frame* child = Tree().FirstChild(); child;
+       child = child->Tree().NextSibling()) {
+    if (child->Owner()) {
+      DCHECK(child->Owner()->IsLocal());
+      // Only propagate if there is a change to the child's inert bit. This
+      // prevents redundant recursions through the Frame tree during style
+      // calculation.
+      bool new_value =
+          is_inert_ || ToHTMLFrameOwnerElement(child->Owner())->IsInert();
+      if (new_value != child->IsInert())
+        child->SetIsInert(new_value);
+    }
+  }
+}
+
 LocalFrame& LocalFrame::LocalFrameRoot() const {
   const LocalFrame* cur_frame = this;
   while (cur_frame && cur_frame->Tree().Parent() &&
          cur_frame->Tree().Parent()->IsLocalFrame())
     cur_frame = ToLocalFrame(cur_frame->Tree().Parent());
 
   return const_cast<LocalFrame&>(*cur_frame);
 }
 
 bool LocalFrame::IsCrossOriginSubframe() const {
@@ skipping 307 matching lines @@
       editor_(Editor::Create(*this)),
       spell_checker_(SpellChecker::Create(*this)),
       selection_(FrameSelection::Create(*this)),
       event_handler_(new EventHandler(*this)),
       console_(FrameConsole::Create(*this)),
       input_method_controller_(InputMethodController::Create(*this)),
       navigation_disable_count_(0),
       page_zoom_factor_(ParentPageZoomFactor(this)),
       text_zoom_factor_(ParentTextZoomFactor(this)),
       in_view_source_mode_(false),
+      is_inert_(false),
       interface_provider_(interface_provider),
       interface_registry_(interface_registry) {
   if (IsLocalRoot()) {
     probe_sink_ = new CoreProbeSink();
     performance_monitor_ = new PerformanceMonitor(this);
   } else {
     probe_sink_ = LocalFrameRoot().probe_sink_;
     performance_monitor_ = LocalFrameRoot().performance_monitor_;
   }
 }
@@ skipping 283 matching lines @@
     node = GetDocument()->FocusedElement();
   }
 
   if (node) {
     return node->GetWebPluginContainerBase();
   }
   return nullptr;
 }
 
 }  // namespace blink