Move VisibleSelection::nonBoundaryShadowTreeRootNode() to FrameSelection.cpp

third_party/WebKit/Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 Apple 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 780 matching lines @@
 
     // Focus on the parent frame, and then select from before this element to after.
     VisibleSelection newSelection(beforeOwnerElement, afterOwnerElement);
     page->focusController().setFocusedFrame(parent);
     // setFocusedFrame can dispatch synchronous focus/blur events.  The document
     // tree might be modified.
     if (newSelection.isNonOrphanedCaretOrRange())
         toLocalFrame(parent)->selection().setSelection(newSelection);
 }
 
+// Returns a shadow tree node for legacy shadow trees, a child of the
+// ShadowRoot node for new shadow trees, or 0 for non-shadow trees.
+static Node* nonBoundaryShadowTreeRootNode(const Position& position)
+{
+    return position.anchorNode() && !position.anchorNode()->isShadowRoot() ? position.anchorNode()->nonBoundaryShadowTreeRootNode() : nullptr;
+}
+
 void FrameSelection::selectAll()
 {
     Document* document = m_frame->document();
 
     if (isHTMLSelectElement(document->focusedElement())) {
         HTMLSelectElement* selectElement = toHTMLSelectElement(document->focusedElement());
         if (selectElement->canSelectAll()) {
             selectElement->selectAll();
             return;
         }
     }
 
     Node* root = nullptr;
     Node* selectStartTarget = nullptr;
     if (isContentEditable()) {
         root = highestEditableRoot(selection().start());
-        if (Node* shadowRoot = selection().nonBoundaryShadowTreeRootNode())
+        if (Node* shadowRoot = nonBoundaryShadowTreeRootNode(selection().start()))
             selectStartTarget = shadowRoot->shadowHost();
         else
             selectStartTarget = root;
     } else {
-        root = selection().nonBoundaryShadowTreeRootNode();
+        root = nonBoundaryShadowTreeRootNode(selection().start());
         if (root) {
             selectStartTarget = root->shadowHost();
         } else {
             root = document->documentElement();
             selectStartTarget = document->body();
         }
     }
     if (!root || editingIgnoresContent(root))
         return;
 
@@ skipping 528 matching lines @@
 
 void showTree(const blink::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil) FrameSelection.\n");
 }
 
 #endif