Move VisibleSelection::positionRespectingEditingBoundary() to EditingUtilities.cpp

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 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 1450 matching lines @@
 unsigned numEnclosingMailBlockquotes(const Position& p)
 {
     unsigned num = 0;
     for (Node* n = p.anchorNode(); n; n = n->parentNode()) {
         if (isMailHTMLBlockquoteElement(n))
             num++;
     }
     return num;
 }
 
+PositionWithAffinity positionRespectingEditingBoundary(const Position& position, const LayoutPoint& localPoint, Node* targetNode)
+{
+    if (!targetNode->layoutObject())
+        return PositionWithAffinity();
+
+    LayoutPoint selectionEndPoint = localPoint;
+    Element* editableElement = rootEditableElementOf(position);
+
+    if (editableElement && !editableElement->contains(targetNode)) {
+        if (!editableElement->layoutObject())
+            return PositionWithAffinity();
+
+        FloatPoint absolutePoint = targetNode->layoutObject()->localToAbsolute(FloatPoint(selectionEndPoint));
+        selectionEndPoint = roundedLayoutPoint(editableElement->layoutObject()->absoluteToLocal(absolutePoint));
+        targetNode = editableElement;
+    }
+
+    return targetNode->layoutObject()->positionForPoint(selectionEndPoint);
+}
+
 void updatePositionForNodeRemoval(Position& position, Node& node)
 {
     if (position.isNull())
         return;
     switch (position.anchorType()) {
     case PositionAnchorType::BeforeChildren:
         if (node.isShadowIncludingInclusiveAncestorOf(position.computeContainerNode()))
             position = Position::inParentBeforeNode(node);
         break;
     case PositionAnchorType::AfterChildren:
@@ skipping 279 matching lines @@
 {
     if (!RuntimeEnabledFeatures::inputEventEnabled())
         return DispatchEventResult::NotCanceled;
     if (!target)
         return DispatchEventResult::NotCanceled;
     InputEvent* beforeInputEvent = InputEvent::createBeforeInput(inputType, data, InputEvent::EventCancelable::IsCancelable, InputEvent::EventIsComposing::NotComposing);
     return target->dispatchEvent(beforeInputEvent);
 }
 
 } // namespace blink